The PNC Financial Services Group, Inc. (PNC) 10-Q 5 May 21 2021 Q1 Quarterly report Financial data

Cover Page

Cover Page - shares	3 Months Ended
	Mar. 31, 2021	Apr. 16, 2021
Entity Information [Line Items]
Document Type	10-Q
Document Quarterly Report	true
Document Period End Date	Mar. 31, 2021
Document Transition Report	false
Entity File Number	001-09718
Entity Registrant Name	PNC Financial Services Group, Inc.
Entity Incorporation, State or Country Code	PA
Entity Tax Identification Number	25-1435979
Entity Address, Address Line One	The Tower at PNC Plaza
Entity Address, Address Line Two	300 Fifth Avenue
Entity Address, City or Town	Pittsburgh
Entity Address, State or Province	PA
Entity Address, Postal Zip Code	15222-2401
City Area Code	888
Local Phone Number	762-2265
Entity Current Reporting Status	Yes
Entity Interactive Data Current	Yes
Entity Filer Category	Large Accelerated Filer
Entity Small Business	false
Entity Emerging Growth Company	false
Entity Shell Company	false
Entity Common Stock, Shares Outstanding		424,858,349
Amendment Flag	false
Document Fiscal Year Focus	2021
Document Fiscal Period Focus	Q1
Entity Central Index Key	0000713676
Current Fiscal Year End Date	--12-31
Common Stock, par value $5.00 | NEW YORK STOCK EXCHANGE, INC.
Entity Information [Line Items]
Title of 12(b) Security	Common Stock, par value $5.00
Trading Symbol	PNC
Security Exchange Name	NYSE
Depositary Shares Each Representing a 1/4,000 Interest in a Share of Fixed-to- Floating Rate Non-Cumulative Perpetual Preferred Stock, Series P | NEW YORK STOCK EXCHANGE, INC.
Entity Information [Line Items]
Title of 12(b) Security	Depositary Shares Each Representing a 1/4,000 Interest in a Share of Fixed-to-    Floating Rate Non-Cumulative Perpetual Preferred Stock, Series P
Trading Symbol	PNC P
Security Exchange Name	NYSE

Consolidated Income Statement

Consolidated Income Statement - USD ($) shares in Millions, $ in Millions	3 Months Ended
	Mar. 31, 2021	Mar. 31, 2020
Interest Income
Loans	$ 1,996	$ 2,480
Investment securities	421	582
Other	66	138
Total interest income	2,483	3,200
Interest Expense
Deposits	40	375
Borrowed funds	95	314
Total interest expense	135	689
Net interest income	2,348	2,511
Noninterest Income
Total noninterest income	1,872	1,825
Total revenue	4,220	4,336
Provision For (Recapture of) Credit Losses	(551)	914
Noninterest Expense
Personnel	1,477	1,369
Occupancy	215	207
Equipment	293	287
Marketing	45	58
Other	544	622
Total noninterest expense	2,574	2,543
Income from continuing operations before income taxes and noncontrolling interests	2,197	879
Income taxes from continuing operations	371	120
Net income from continuing operations	1,826	759
Income from discontinued operations before taxes		181
Income taxes from discontinued operations		25
Net income from discontinued operations		156
Net income	1,826	915
Less: Net income attributable to noncontrolling interests	10	7
Preferred stock dividends	57	63
Preferred stock discount accretion and redemptions	1	1
Net income attributable to common shareholders	$ 1,758	$ 844
Earnings Per Share, Basic [Abstract]
Basic earnings from continuing operations (in dollars per share)	$ 4.11	$ 1.59
Basic earnings per common share from discontinued operations (in dollars per share)		0.37
Basic earnings per common share (in dollars per share)	4.11	1.96
Earnings Per Share, Diluted [Abstract]
Diluted earnings from continuing operations (in dollars per share)	4.10	1.59
Diluted earnings per common share from discontinued operations (in dollars per share)		0.36
Diluted earnings per common share (in dollars per share)	$ 4.10	$ 1.95
Average Common Shares Outstanding
Basic (in shares)	426	429
Diluted (in shares)	426	430
Asset management
Noninterest Income
Total noninterest income	$ 226	$ 201
Consumer services
Noninterest Income
Total noninterest income	384	377
Corporate services
Noninterest Income
Total noninterest income	555	526
Residential mortgage
Noninterest Income
Total noninterest income	105	210
Service charges on deposits
Noninterest Income
Total noninterest income	119	168
Other
Noninterest Income
Total noninterest income	$ 483	$ 343

Consolidated Statement of Compr

Consolidated Statement of Comprehensive Income - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2021	Mar. 31, 2020
Net income from continuing operations	$ 1,826	$ 759
Other comprehensive income (loss), before tax and net of reclassifications into Net income
Net change in Other	1	8
Other comprehensive income (loss), before tax and net of reclassifications into Net income	(1,938)	2,251
Income tax benefit (expense) related to items of other comprehensive income	458	(532)
Other comprehensive income (loss), after tax and net of reclassifications into Net income	(1,480)	1,719
Net income from discontinued operations		156
Other comprehensive income (loss), after tax and net of reclassifications into Net income	(1,480)	1,719
Comprehensive income	346	2,634
Less: Comprehensive income attributable to noncontrolling interests	10	7
Comprehensive income attributable to PNC	336	2,627
Discontinued Operations, Disposed of by Sale
Other comprehensive income (loss), before tax and net of reclassifications into Net income
Other comprehensive income (loss), before tax and net of reclassifications into Net income		(34)
Income tax benefit (expense) related to items of other comprehensive income		8
Other comprehensive income (loss), after tax and net of reclassifications into Net income		(26)
Continuing Operations
Other comprehensive income (loss), before tax and net of reclassifications into Net income
Net change in debt securities	(1,194)	1,480
Net change in cash flow hedge derivatives	(775)	785
Pension and other postretirement benefit plan adjustments	30	12
Net change in Other	1	8
Other comprehensive income (loss), before tax and net of reclassifications into Net income	(1,938)	2,285
Income tax benefit (expense) related to items of other comprehensive income	458	(540)
Other comprehensive income (loss), after tax and net of reclassifications into Net income	$ (1,480)	$ 1,745

Consolidated Balance Sheet

Consolidated Balance Sheet - USD ($) $ in Millions		Mar. 31, 2021	Dec. 31, 2020
Assets
Cash and due from banks		$ 7,455	$ 7,017
Interest-earning deposits with banks		86,161	85,173
Loans held for sale	[1]	1,967	1,597
Investment securities – available for sale		96,799	87,358
Investment securities – held to maturity		1,456	1,441
Loans	[1]	237,013	241,928
Allowance for loan and lease losses		(4,714)	(5,361)
Net loans		232,299	236,567
Equity investments		6,386	6,052
Mortgage servicing rights		1,680	1,242
Goodwill		9,317	9,233
Other	[1]	30,894	30,999
Total assets		474,414	466,679
Deposits
Noninterest-bearing		120,641	112,637
Interest-bearing		254,426	252,708
Total deposits		375,067	365,345
Borrowed funds
Federal Home Loan Bank borrowings		1,500	3,500
Bank notes and senior debt		22,139	24,271
Subordinated debt		6,241	6,403
Other	[2]	3,150	3,021
Total borrowed funds		33,030	37,195
Allowance for unfunded lending related commitments		507	584
Accrued expenses and other liabilities		11,931	9,514
Total liabilities		420,535	412,638
Equity
Preferred stock	[3]
Common stock ($5 par value, Authorized 800 shares, issued 543 shares)		2,713	2,713
Capital surplus		15,879	15,884
Retained earnings		48,113	46,848
Accumulated other comprehensive income		1,290	2,770
Common stock held in treasury at cost: 118 and 119 shares		(14,146)	(14,205)
Total shareholders’ equity		53,849	54,010
Noncontrolling interests		30	31
Total equity		53,879	54,041
Total liabilities and equity		$ 474,414	$ 466,679
[1]	Our consolidated assets included the following for which we have elected the fair value option: Loans held for sale of $1.6 billion, Loans of $1.4 billion and Other assets of $0.1 billion at March 31, 2021. Comparable amounts at December 31, 2020 were $1.2 billion, $1.4 billion and $0.1 billion, respectively.
[2]	Our consolidated liabilities included Other borrowed funds of less than $0.1 billion at both March 31, 2021 and December 31, 2020, for which we have elected the fair value option.
[3]	Par value less than $0.5 million at each date.

Consolidated Balance Sheet (Par

Consolidated Balance Sheet (Parenthetical) - USD ($) $ in Millions	Mar. 31, 2021	Dec. 31, 2020
Common stock, par value (in dollars per share)	$ 5	$ 5
Common stock, authorized (shares)	800,000,000	800,000,000
Common stock, issued (shares)	543,000,000	543,000,000
Common stock held in treasury at cost (shares)	118,000,000	119,000,000
Preferred stock (less than)	$ 0.5	$ 0.5
Portion at Fair Value, Fair Value Disclosure
Loans held for sale, fair value	1,600	1,200
Loans, fair value	1,400	1,400
Other assets, fair value	100	100
Other borrowed funds, fair value	$ 100	$ 100

Consolidated Statement of Cash

Consolidated Statement of Cash Flows - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2021	Mar. 31, 2020
Operating Activities
Net income	$ 1,826	$ 915
Adjustments to reconcile net income to net cash provided (used) by operating activities
Provision for (recapture of) credit losses	(551)	914
Depreciation and amortization	375	328
Deferred income taxes	(138)	(226)
Changes in fair value of mortgage servicing rights	(323)	620
Undistributed earnings of BlackRock		(56)
Net change in
Trading securities and other short-term investments	564	(1,014)
Loans held for sale	(342)	(452)
Other assets	(822)	(6,912)
Accrued expenses and other liabilities	245	5,376
Other	(54)	(189)
Net cash provided (used) by operating activities	780	(696)
Sales
Securities available for sale	5,558	5,447
Loans	406	314
Repayments/maturities
Securities available for sale	7,263	4,332
Securities held to maturity	14	12
Purchases
Securities available for sale	(22,094)	(11,889)
Securities held to maturity	(21)	(4)
Loans	(778)	(100)
Net change in
Federal funds sold and resale agreements	(136)	965
Interest-earning deposits with banks	(988)	3,427
Loans	5,043
Loans		(25,758)
Other	(339)	(125)
Net cash provided (used) by investing activities	(6,072)	(23,379)
Net change in
Noninterest-bearing deposits	8,096	8,857
Interest-bearing deposits	1,718	7,829
Federal funds purchased and repurchase agreements	(3)	2,306
Short-term Federal Home Loan Bank borrowings		(400)
Other borrowed funds	168	1,044
Sales/issuances
Federal Home Loan Bank borrowings		9,060
Bank notes and senior debt		3,486
Other borrowed funds	188	172
Common and treasury stock	27	23
Repayments/maturities
Federal Home Loan Bank borrowings	(2,000)	(1,510)
Bank notes and senior debt	(1,650)	(2,100)
Other borrowed funds	(198)	(172)
Acquisition of treasury stock	(66)	(1,522)
Preferred stock cash dividends paid	(57)	(63)
Common stock cash dividends paid	(493)	(503)
Net cash provided (used) by financing activities	5,730	26,507
Net Increase (Decrease) In Cash And Due From Banks And Restricted Cash	438	2,432
Net cash provided by discontinued operations		126
Net cash provided (used) by continuing operations	438	2,306
Cash and due from banks and restricted cash at beginning of period	7,017	5,061
Cash and due from banks and restricted cash at end of period	7,455	7,493
Cash and due from banks at end of period (unrestricted cash)	6,698	7,161
Restricted cash	757	332
Supplemental Disclosures
Interest paid	188	638
Income taxes paid	15	36
Income taxes refunded	4	5
Leased assets obtained in exchange for new operating lease liabilities	12	57
Non-cash Investing and Financing Items
Transfer from loans to loans held for sale, net	344	313
Transfer from loans to foreclosed assets	$ 7	$ 37

Accounting Policies

Accounting Policies	3 Months Ended
	Mar. 31, 2021
Accounting Policies [Abstract]
Accounting Policies	B USINESS PNC is one of the largest diversified financial services companies in the U.S. and is headquartered in Pittsburgh, Pennsylvania. CCOUNTING P OLICIES Basis of Financial Statement Presentation Our consolidated financial statements include the accounts of the parent company and its subsidiaries, most of which are wholly-owned, certain partnership interests and VIEs. We prepared these consolidated financial statements in accordance with GAAP. We have eliminated intercompany accounts and transactions. We have also reclassified certain prior year amounts to conform to the current period presentation, which did not have a material impact on our consolidated financial condition or results of operations. In our opinion, the unaudited interim consolidated financial statements reflect all normal, recurring adjustments needed to present fairly our results for the interim periods. The results of operations for interim periods are not necessarily indicative of the results that may be expected for the full year or any other interim period. We have also considered the impact of subsequent events on these consolidated financial statements. When preparing these unaudited interim consolidated financial statements, we have assumed that you have read the audited consolidated financial statements included in our 2020 Form 10-K. Reference is made to Note 1 Accounting Policies in our 2020 Form 10-K for a detailed description of significant accounting policies. These interim consolidated financial statements serve to update our 2020 Form 10-K and may not include all information and Notes necessary to constitute a complete set of financial statements. There have been no significant changes to our accounting policies as disclosed in our 2020 Form 10-K. Use of Estimates We prepared these consolidated financial statements using financial information available at the time of preparation, which requires us to make estimates and assumptions that affect the amounts reported. Our most significant estimates pertain to the ACL and our fair value measurements. Actual results may differ from the estimates and the differences may be material to the consolidated financial statements. Recently Adopted Accounting Standards Accounting Standards Update Description Financial Statement Impact Income Tax Simplification - ASU 2019-12 Issued December 2019 • Simplifies the accounting for income taxes by eliminating certain exceptions in ASC 740, Income Taxes , relating to the approach for intraperiod tax allocation, the recognition of deferred tax liabilities for outside basis differences and the methodology for calculating income taxes in an interim period. • Clarifies areas of the income tax guidance around franchise taxes partially based on income, step-ups in the tax basis of goodwill, and enacted changes in tax laws. • Specifies that an entity is no longer required to allocate the consolidated amount of current and deferred tax expense to a legal entity that is not subject to tax in its separate financial statements. • Adopted January 1, 2021. • The adoption of this standard did not impact our consolidated results of operations or our consolidated financial position. PNC will no longer allocate the consolidated amount of current and deferred income tax expense to certain qualifying stand-alone entities, which may impact the presentation of parent company tax expense subsequent to adoption. Accounting Standards Update Description Financial Statement Impact Reference Rate Reform - ASU 2020-04 Issued March 2020 Reference Rate Reform Scope - ASU 2021-01 Issued January 2021 • Provides optional expedients and exceptions for applying generally accepted accounting principles to contracts, hedging relationships and other transactions that reference LIBOR or another reference rate expected to be discontinued because of reference rate reform (codified in ASC 848). • Includes optional expedients related to contract modifications that allow an entity to account for modifications (if certain criteria are met) as if the modifications were only minor (assets within the scope of ASC 310, Receivables ), were not substantial (assets within the scope of ASC 470, Debt ) and/or did not result in remeasurements or reclassifications (assets within the scope of ASC 842, Leases , and other Topics) of the existing contract. • Includes optional expedients related to hedging relationships within the scope of ASC 815, Derivatives & Hedging , whereby changes to the critical terms of a hedging relationship do not require dedesignation if certain criteria are met. In addition, potential sources of ineffectiveness as a result of reference rate reform may be disregarded when performing some effectiveness assessments. • Includes optional expedients and exceptions for contract modifications and hedge accounting that apply to derivative instruments impacted by the market-wide discounting transition. • Allows for a one-time election to sell, transfer, or both sell and transfer debt securities classified as held to maturity that reference a rate affected by reference rate reform and that are classified as held to maturity before January 1, 2020. • Guidance in these ASUs are effective as of March 12, 2020 through December 31, 2022. • ASU 2020-04 was adopted March 12, 2020. ASU 2021-01 was retrospectively adopted October 1, 2020. • Refer to Note 1 Accounting Policies in the 2020 Form 10-K for more information on elections of optional expedients that occurred in 2020. • During the first quarter of 2021, we elected to apply certain optional expedients to derivative instruments that were modified in the first quarter due to the adoption of fallback language recommended by the ISDA to address the anticipated cessation of LIBOR. These optional expedients remove the requirement to remeasure contract modifications or dedesignate hedging relationships due to reference rate reform. • As of March 31, 2021, we have not yet elected to apply any optional expedients for contract modifications and hedging relationships to any other financial instruments. However, we plan to elect these optional expedients in the future. Accounting Standards Update Description Financial Statement Impact SEC Paragraph Amendments – ASU 2020-09 Issued October 2020 • Amends the financial disclosure requirements for guarantors and issuers of guaranteed securities registered or being registered, and issuers’ affiliates whose securities collateralize securities registered or being registered in Regulation S-X. • Improves disclosure requirements for both investors and registrants. • Provides investors with material information given the specific facts and circumstances, making the disclosures easier to understand and reducing the costs and burdens to registrants. • Adopted January 4, 2021. • In accordance with the requirements of this ASU, we included Exhibit 22 in the Exhibit Index of Item 6 of this Report to disclose PNC’s guarantee of the PNC Capital Trust C preferred securities.

Acquisition and Divestiture Act

Acquisition and Divestiture Activity	3 Months Ended
	Mar. 31, 2021
Business Combinations [Abstract]
Acquisition and Divestiture Activity	A CQUISITION A ND D IVESTITURE A CTIVITY Pending Acquisition of BBVA USA Bancshares, Inc. On November 16, 2020, we announced a definitive agreement with BBVA, S.A. to acquire BBVA including its U.S. banking subsidiary, BBVA USA, for a fixed purchase price of $11.6 billion in cash. BBVA USA has over 600 branches in Texas, Alabama, Arizona, California, Florida, Colorado and New Mexico. The transaction is expected to add approximately $102 billion in total assets, $86 billion of deposits and $66 billion of loans to PNC’s Consolidated Balance Sheet and to close in mid-2021, subject to customary closing conditions, including receipt of regulatory approvals. Sale of Equity Investment in BlackRock, Inc. In May 2020, PNC completed the sale of its 31.6 million shares of BlackRock, Inc. common and preferred stock through a registered secondary offering at a price of $420 per share. In addition, BlackRock repurchased 2.65 million shares from PNC at a price of $414.96 per share. The total proceeds from the sale were $14.2 billion in cash, net of $0.2 billion in expenses, and resulted in a gain on sale of $4.3 billion. Additionally, PNC contributed 500,000 BlackRock shares to the PNC Foundation. Following the sale and donation, PNC has divested its entire investment in BlackRock and only holds shares of BlackRock stock in a fiduciary capacity for clients of PNC. The following table summarizes the results from the discontinued operations of BlackRock included in the Consolidated Income Statement: Table 34: Consolidated Income Statement - Discontinued Operations Three months ended March 31 In millions 2020 Noninterest income $ 181 Total revenue 181 Income from discontinued operations before income taxes and noncontrolling interests 181 Income taxes 25 Net income from discontinued operations $ 156

Investment Securities

Investment Securities	3 Months Ended
	Mar. 31, 2021
Investment Securities Disclosure [Abstract]
Investment Securities	I NVESTMENT S ECURITIES Table 35: Investment Securities Summary March 31, 2021 (a) December 31, 2020 (a) In millions Amortized Unrealized Fair Amortized Unrealized Fair Gains Losses Gains Losses Securities Available for Sale U.S. Treasury and government agencies $ 25,670 $ 546 $ (266) $ 25,950 $ 19,821 $ 903 $ (13) $ 20,711 Residential mortgage-backed Agency 50,499 1,227 (172) 51,554 47,355 1,566 (10) 48,911 Non-agency 1,181 252 (9) 1,424 1,272 243 (14) 1,501 Commercial mortgage-backed Agency 2,219 68 (3) 2,284 2,571 119 (2) 2,688 Non-agency 4,191 60 (15) 4,236 3,678 78 (67) 3,689 Asset-backed 5,969 89 (17) 6,041 5,060 100 (10) 5,150 Other 5,077 238 (5) 5,310 4,415 293 4,708 Total securities available for sale (b) $ 94,806 $ 2,480 $ (487) $ 96,799 $ 84,172 $ 3,302 $ (116) $ 87,358 Securities Held to Maturity U.S. Treasury and government agencies $ 800 $ 74 $ 874 $ 795 $ 125 $ 920 Other 656 36 $ (7) 685 646 42 $ (3) 685 Total securities held to maturity (c) $ 1,456 $ 110 $ (7) $ 1,559 $ 1,441 $ 167 $ (3) $ 1,605 (a) The accrued interest associated with our available for sale portfolio totaled $244 million and $238 million at March 31, 2021 and December 31, 2020, respectively. These amounts are included in Other assets on the Consolidated Balance Sheet. (b) Amortized cost is presented net of allowance of $105 million and $79 million for securities available for sale at March 31, 2021 and December 31, 2020, respectively. (c) Credit ratings represent a primary credit quality indicator used to monitor and manage credit risk. 85% of our securities held to maturity were rated AAA/AA as of both March 31, 2021 and December 31, 2020. The fair value of investment securities is impacted by interest rates, credit spreads, market volatility and liquidity conditions. Securities available for sale are carried at fair value with net unrealized gains and losses included in Shareholders’ equity as AOCI, unless credit related. Net unrealized gains and losses are determined by taking the difference between the fair value of a security and its amortized cost, net of any allowance. Securities held to maturity are carried at amortized cost less any allowance. Investment securities at March 31, 2021 included $1.8 billion of net unsettled purchases which represent non-cash investing activity, and accordingly, are not reflected on the Consolidated Statement of Cash Flows. The comparable amount for March 31, 2020 was $0.4 billion. We maintain the allowance for investment securities at levels that we believe to be appropriate as of the balance sheet date based on estimation of expected credit losses on our portfolio. As of March 31, 2021, the allowance for investment securities was $108 million and primarily related to non-agency commercial mortgage-backed securities in the available for sale portfolio. The provision for credit losses on investment securities totaled $26 million for the three months ended March 31, 2021. Table 36 presents the gross unrealized losses and fair value of securities available for sale that do not have an associated allowance for investment securities as of March 31, 2021. These securities are segregated between investments that had been in a continuous unrealized loss position for less than twelve months and twelve months or more, based on the point in time that the fair value declined below the amortized cost basis. All securities included in the table have been evaluated to determine if a credit loss exists. As part of that assessment, as of March 31, 2021, we concluded that we do not intend to sell and believe we will not be required to sell these securities prior to recovery of the amortized cost basis. Table 36: Gross Unrealized Loss and Fair Value of Securities Available for Sale Without an Allowance for Credit Losses Unrealized loss position Unrealized loss position Total In millions Unrealized Fair Unrealized Fair Unrealized Fair March 31, 2021 U.S. Treasury and government agencies $ (266) $ 12,798 $ (266) $ 12,798 Residential mortgage-backed Agency (170) 19,019 $ (2) $ 75 (172) 19,094 Non-agency (9) 165 (9) 165 Commercial mortgage-backed Agency (2) 190 (1) 69 (3) 259 Non-agency (1) 275 (5) 911 (6) 1,186 Asset-backed (12) 1,707 (5) 794 (17) 2,501 Other (4) 457 (4) 457 Total securities available for sale $ (455) $ 34,446 $ (22) $ 2,014 $ (477) $ 36,460 December 31, 2020 U.S. Treasury and government agencies $ (13) $ 603 $ (13) $ 603 Residential mortgage-backed Agency (8) 3,152 $ (2) $ 82 (10) 3,234 Non-agency (7) 119 (7) 73 (14) 192 Commercial mortgage-backed Agency (2) 149 (2) 149 Non-agency (13) 972 (7) 714 (20) 1,686 Asset-backed (1) 339 (9) 706 (10) 1,045 Total securities available for sale $ (42) $ 5,185 $ (27) $ 1,724 $ (69) $ 6,909 Information relating to gross realized securities gains and losses from the sales of securities is set forth in the following table: Table 37: Gains (Losses) on Sales of Securities Available for Sale Three months ended March 31 Gross Gains Gross Losses Net Gains Tax Expense 2021 $ 159 $ (134) $ 25 $ 5 2020 $ 184 $ (2) $ 182 $ 38 The following table presents, by remaining contractual maturity, the amortized cost, fair value and weighted-average yield of debt securities at March 31, 2021: Table 38: Contractual Maturity of Debt Securities March 31, 2021 1 Year or Less After 1 Year After 5 Years After 10 Total Securities Available for Sale U.S. Treasury and government agencies $ 2,685 $ 15,164 $ 6,237 $ 1,584 $ 25,670 Residential mortgage-backed Agency 2 205 2,248 48,044 50,499 Non-agency 2 1,179 1,181 Commercial mortgage-backed Agency 545 662 1,012 2,219 Non-agency 202 210 3,779 4,191 Asset-backed 86 2,322 1,274 2,287 5,969 Other 733 1,826 1,672 846 5,077 Total securities available for sale at amortized cost $ 3,506 $ 20,264 $ 12,305 $ 58,731 $ 94,806 Fair value $ 3,529 $ 20,700 $ 12,405 $ 60,165 $ 96,799 Weighted-average yield, GAAP basis (a) 1.68 % 1.58 % 1.72 % 2.62 % 2.25 % Securities Held to Maturity U.S. Treasury and government agencies $ 199 $ 315 $ 286 $ 800 Other $ 71 396 109 80 656 Total securities held to maturity at amortized cost $ 71 $ 595 $ 424 $ 366 $ 1,456 Fair value $ 72 $ 626 $ 490 $ 371 $ 1,559 Weighted-average yield, GAAP basis (a) 3.70 % 3.21 % 3.93 % 2.48 % 3.28 % (a) Weighted-average yields are based on amortized cost with effective yields weighted for the contractual maturity of each security. At March 31, 2021, there were no securities of a single issuer, other than FNMA and FHLMC, that exceeded 10% of total shareholders’ equity. The FNMA and FHLMC investments had a total amortized cost of $30.8 billion and $18.9 billion and fair value of $31.7 billion and $18.8 billion, respectively. The following table presents the fair value of securities that have been either pledged to or accepted from others to collateralize outstanding borrowings. Table 39: Fair Value of Securities Pledged and Accepted as Collateral In millions March 31 December 31 Pledged to others $ 21,794 $ 22,841 Accepted from others: Permitted by contract or custom to sell or repledge $ 817 $ 683 Permitted amount repledged to others $ 817 $ 683 The securities pledged to others include positions held in our portfolio of investment securities, trading securities and securities accepted as collateral from others that we are permitted by contract or custom to sell or repledge, and were used to secure public and trust deposits, repurchase agreements and for other purposes.

Loans and Related Allowance for

Loans and Related Allowance for Credit Losses	3 Months Ended
	Mar. 31, 2021
Asset Quality [Abstract]
Loans and Related Allowance for Credit Losses	L OANS A ND R ELATED A LLOWANCE F OR C REDIT L OSSES Loan Portfolio Our loan portfolio consists of two portfolio segments – Commercial and Consumer. Each of these segments comprises multiple loan classes. Classes are characterized by similarities in risk attributes and the manner in which we monitor and assess credit risk. Commercial Consumer • Commercial and industrial • Home equity • Commercial real estate • Residential real estate • Equipment lease financing • Automobile • Credit card • Education • Other consumer See Note 1 Accounting Policies included in Item 8 of our 2020 Form 10-K for additional information on our loan related policies. Credit Quality We closely monitor economic conditions and loan performance trends to manage and evaluate our exposure to credit risk within the loan portfolio based on our defined loan classes. In doing so, we use several credit quality indicators, including trends in delinquency rates, nonperforming status, analysis of PD and LGD ratings, updated credit scores, and originated and updated LTV ratios. The measurement of delinquency status is based on the contractual terms of each loan. Loans that are 30 days or more past due in terms of payment are considered delinquent. Loan delinquencies include government insured or guaranteed loans, loans accounted for under the fair value option and PCD loans. The following table presents the composition and delinquency status of our loan portfolio at March 31, 2021 and December 31, 2020. Pursuant to the interagency guidance issued in April 2020 and in connection with the credit reporting rules from the CARES Act, the delinquency status of loans modified due to COVID-19 related hardships aligns with the rules set forth for banks to report delinquency status to the credit agencies. These rules require that COVID-19 related loan modifications be reported as follows: • if current at the time of modification, the loan remains current throughout the modification period, • if delinquent at the time of modification and the borrower was not made current as part of the modification, the loan maintains its reported delinquent status during the modification period, or • if delinquent at the time of modification and the borrower was made current as part of the modification or became current during the modification period, the loan is reported as current. As a result, certain loans modified due to COVID-19 related hardships are not being reported as past due as of March 31, 2021 and December 31, 2020 based on the contractual terms of the loan, even where borrowers may not be making payments on their loans during the modification period. Loan modifications due to COVID-19 related hardships that permanently reduce either the contractual interest rate or the principal balance of a loan do not qualify for TDR relief under the CARES Act or the interagency guidance. Table 40: Analysis of Loan Portfolio (a) (b) Accruing Dollars in millions Current or Less 30-59 60-89 90 Days Total Nonperforming Fair Value Total Loans March 31, 2021 Commercial Commercial and industrial $ 129,130 $ 80 $ 13 $ 63 $ 156 $ 512 $ 129,798 Commercial real estate 28,085 12 1 13 221 28,319 Equipment lease financing 6,351 21 1 22 16 6,389 Total commercial 163,566 113 15 63 191 749 164,506 Consumer Home equity 22,706 43 20 63 656 $ 68 23,493 Residential real estate 20,862 162 73 275 510 (c) 541 505 22,418 Automobile 13,305 76 19 6 101 178 13,584 Credit card 5,561 31 24 52 107 7 5,675 Education 2,692 49 25 76 150 (c) 2,842 Other consumer 4,464 11 6 7 24 7 4,495 Total consumer 69,590 372 167 416 955 1,389 573 72,507 Total $ 233,156 $ 485 $ 182 $ 479 $ 1,146 $ 2,138 $ 573 $ 237,013 Percentage of total loans 98.38 % 0.20 % 0.08 % 0.20 % 0.48 % 0.90 % 0.24 % 100.00 % December 31, 2020 Commercial Commercial and industrial $ 131,245 $ 106 $ 26 $ 30 $ 162 $ 666 $ 132,073 Commercial real estate 28,485 6 1 7 224 28,716 Equipment lease financing 6,345 31 5 36 33 6,414 Total commercial 166,075 143 32 30 205 923 167,203 Consumer Home equity 23,318 50 21 71 645 $ 54 24,088 Residential real estate 20,945 181 78 319 578 (c) 528 509 22,560 Automobile 13,863 134 34 12 180 175 14,218 Credit card 6,074 43 30 60 133 8 6,215 Education 2,785 55 29 77 161 (c) 2,946 Other consumer 4,656 14 10 11 35 7 4,698 Total consumer 71,641 477 202 479 1,158 1,363 563 74,725 Total $ 237,716 $ 620 $ 234 $ 509 $ 1,363 $ 2,286 $ 563 $ 241,928 Percentage of total loans 98.27 % 0.26 % 0.10 % 0.21 % 0.56 % 0.94 % 0.23 % 100.00 % (a) Amounts in table represent loans held for investment and do not include any associated valuation allowance. (b) The accrued interest associated with our loan portfolio totaled $0.7 billion at both March 31, 2021 and December 31, 2020 and is included in Other assets on the Consolidated Balance Sheet. (c) Past due loan amounts include government insured or guaranteed Residential real estate loans and Education loans totaling $0.4 billion and $0.1 billion at March 31, 2021. Comparable amounts at December 31, 2020 were $0.4 billion and $0.2 billion. (d) Consumer loans accounted for under the fair value option for which we do not expect to collect substantially all principal and interest are subject to nonaccrual accounting and classification upon meeting any of our nonaccrual policies. Given that these loans are not accounted for at amortized cost, these loans have been excluded from the nonperforming loan population. (e) Net of unearned income, unamortized deferred fees and costs on originated loans, and premiums or discounts on purchased loans totaling $1.4 billion and $1.3 billion at March 31, 2021 and December 31, 2020, respectively. (f) Collateral dependent loans totaled $1.4 billion and $1.5 billion at March 31, 2021 and December 31, 2020, respectively. The majority of these loans are within the Home equity and Residential real estate loan classes and are secured by consumer real estate. At March 31, 2021, we pledged $28.6 billion of commercial loans to the Federal Reserve Bank and $66.9 billion of residential real estate and other loans to the FHLB as collateral for the ability to borrow, if necessary. The comparable amounts at December 31, 2020 were $30.1 billion and $69.0 billion, respectively. Amounts pledged reflect the unpaid principal balances. Nonperforming Assets Nonperforming assets include nonperforming loans and leases, OREO and foreclosed assets. Nonperforming loans are those loans accounted for at amortized cost whose credit quality has deteriorated to the extent that full collection of contractual principal and interest is not probable. Interest income is not recognized on these loans. Loans accounted for under the fair value option are reported as performing loans, however, when nonaccrual criteria is met interest income is not recognized on these loans. Additionally, certain government insured or guaranteed loans for which we expect to collect substantially all principal and interest are not reported as The following table presents our nonperforming assets as of March 31, 2021 and December 31, 2020 , respectively: Table 41: Nonperforming Assets Dollars in millions March 31 December 31 Nonperforming loans Commercial $ 749 $ 923 Consumer (a) 1,389 1,363 Total nonperforming loans (b) 2,138 2,286 OREO and foreclosed assets 41 51 Total nonperforming assets $ 2,179 $ 2,337 Nonperforming loans to total loans 0.90 % 0.94 % Nonperforming assets to total loans, OREO and foreclosed assets 0.92 % 0.97 % Nonperforming assets to total assets 0.46 % 0.50 % (a) Excludes most unsecured consumer loans and lines of credit, which are charged off after 120 to 180 days past due and are not placed on nonperforming status. (b) Nonperforming loans for which there is no related ALLL totaled $0.7 billion at March 31, 2021, and is primarily comprised of loans with a fair value of collateral that exceeds the amortized cost basis. The comparable amount at December 31, 2020 was $0.8 billion. Nonperforming loans also include certain loans whose terms have been restructured in a manner that grants a concession to a borrower experiencing financial difficulties. In accordance with applicable accounting guidance, these loans are considered TDRs. See Note 1 Accounting Policies included in Item 8 of our 2020 Form 10-K and the Troubled Debt Restructurings section of this Note 4 for additional information on TDRs. Total nonperforming loans in Table 41 include TDRs of $0.9 billion at both March 31, 2021 and December 31, 2020. TDRs that are performing, including consumer credit card TDR loans, totaled $0.7 billion at both March 31, 2021 and December 31, 2020 and are excluded from nonperforming loans. Additional Credit Quality Indicators by Loan Class Commercial Loan Classes See Note 4 Loans and Related Allowance for Credit Losses included in Item 8 of our 2020 Form 10-K for additional information related to these loan classes, including discussion around the credit quality indicators that we use to monitor and manage the credit risk associated with each loan class. The following table presents credit quality indicators for the Commercial loan classes: Table 42: Commercial Credit Quality Indicators (a) Term Loans by Origination Year March 31, 2021 - In millions 2021 2020 2019 2018 2017 Prior Revolving Loans Revolving Loans Converted to Term Total Commercial and industrial Pass Rated $ 13,796 $ 19,870 $ 12,404 $ 7,540 $ 5,559 $ 10,715 $ 53,161 $ 51 $ 123,096 Criticized 158 429 725 603 317 594 3,856 20 6,702 Total commercial and industrial 13,954 20,299 13,129 8,143 5,876 11,309 57,017 71 129,798 Commercial real estate Pass Rated 1,041 3,261 6,034 3,195 2,675 8,673 239 25,118 Criticized 132 137 663 166 487 1,597 19 3,201 Total commercial real estate 1,173 3,398 6,697 3,361 3,162 10,270 258 28,319 Equipment lease financing Pass Rated 339 1,360 1,142 868 678 1,711 6,098 Criticized 11 71 73 79 34 23 291 Total equipment lease financing 350 1,431 1,215 947 712 1,734 6,389 Total commercial $ 15,477 $ 25,128 $ 21,041 $ 12,451 $ 9,750 $ 23,313 $ 57,275 $ 71 $ 164,506 Term Loans by Origination Year December 31, 2020 - In millions 2020 2019 2018 2017 2016 Prior Revolving Loans Revolving Loans Converted to Term Total Commercial and industrial Pass Rated $ 31,680 $ 13,340 $ 8,209 $ 5,956 $ 4,242 $ 7,141 $ 54,775 $ 53 $ 125,396 Criticized 339 702 578 334 224 351 4,130 19 6,677 Total commercial and industrial 32,019 14,042 8,787 6,290 4,466 7,492 58,905 72 132,073 Commercial real estate Pass Rated 3,709 6,268 3,426 2,841 2,341 6,792 218 25,595 Criticized 319 548 148 423 400 1,159 124 3,121 Total commercial real estate 4,028 6,816 3,574 3,264 2,741 7,951 342 28,716 Equipment lease financing Pass Rated 1,429 1,202 942 738 405 1,350 6,066 Criticized 78 92 86 39 22 31 348 Total equipment lease financing 1,507 1,294 1,028 777 427 1,381 6,414 Total commercial $ 37,554 $ 22,152 $ 13,389 $ 10,331 $ 7,634 $ 16,824 $ 59,247 $ 72 $ 167,203 (a) Loans in our commercial portfolio are classified as Pass Rated or Criticized based on the regulatory definitions, which are driven by the PD and LGD ratings that we assign. The Criticized classification includes loans that were rated special mention, substandard or doubtful as of March 31, 2021 and December 31, 2020. Consumer Loan Classes See Note 4 Loans and Related Allowance for Credit Losses included in Item 8 of our 2020 Form 10-K for additional information related to these loan classes, including discussion around the credit quality indicators that we use to monitor and manage the credit risk associated with each loan class. Home Equity and Residential Real Estate The following table presents credit quality indicators for the home equity and residential real estate loan classes: Table 43: Home Equity and Residential Real Estate Credit Quality Indicators Term Loans by Origination Year March 31, 2021 - In millions 2021 2020 2019 2018 2017 Prior Revolving Loans Revolving Loans Converted to Term Total Loans Home equity Current estimated LTV ratios . Greater than 100% $ 8 $ 41 $ 13 $ 10 $ 73 $ 471 $ 254 $ 870 Greater than or equal to 80% to 100% $ 35 253 200 39 27 139 1,384 615 2,692 Less than 80% 196 3,019 1,560 482 712 4,081 6,418 3,463 19,931 Total home equity $ 231 $ 3,280 $ 1,801 $ 534 $ 749 $ 4,293 $ 8,273 $ 4,332 $ 23,493 Updated FICO scores Greater than or equal to 780 $ 127 $ 1,925 $ 960 $ 273 $ 467 $ 2,640 $ 5,148 $ 1,844 $ 13,384 720 to 779 84 947 505 138 164 865 1,950 1,084 5,737 660 to 719 19 346 264 83 80 428 905 678 2,803 Less than 660 1 61 71 39 37 350 255 628 1,442 No FICO score available 1 1 1 1 10 15 98 127 Total home equity $ 231 $ 3,280 $ 1,801 $ 534 $ 749 $ 4,293 $ 8,273 $ 4,332 $ 23,493 Residential real estate Current estimated LTV ratios Greater than 100% $ 4 $ 56 $ 23 $ 28 $ 150 $ 261 Greater than or equal to 80% to 100% $ 346 142 274 70 113 328 1,273 Less than 80% 2,175 7,157 2,995 856 1,485 5,286 19,954 Government insured or guaranteed loans 8 29 25 39 829 930 Total residential real estate $ 2,521 $ 7,311 $ 3,354 $ 974 $ 1,665 $ 6,593 $ 22,418 Updated FICO scores Greater than or equal to 780 $ 1,409 $ 5,220 $ 2,411 $ 661 $ 1,206 $ 3,564 $ 14,471 720 to 779 1,061 1,767 708 182 308 1,056 5,082 660 to 719 51 267 166 81 85 518 1,168 Less than 660 43 38 23 24 501 629 No FICO score available 6 2 2 3 125 138 Government insured or guaranteed loans 8 29 25 39 829 930 Total residential real estate $ 2,521 $ 7,311 $ 3,354 $ 974 $ 1,665 $ 6,593 $ 22,418 Term Loans by Origination Year December 31, 2020 - In millions 2020 2019 2018 2017 2016 Prior Revolving Loans Revolving Loans Converted to Term Total Loans Home equity Current estimated LTV ratios . Greater than 100% $ 8 $ 44 $ 18 $ 15 $ 9 $ 88 $ 580 $ 279 $ 1,041 Greater than or equal to 80% to 100% 517 320 59 42 25 158 1,781 591 3,493 Less than 80% 2,909 1,636 513 773 660 3,754 6,433 2,876 19,554 Total home equity $ 3,434 $ 2,000 $ 590 $ 830 $ 694 $ 4,000 $ 8,794 $ 3,746 $ 24,088 Updated FICO scores Greater than or equal to 780 $ 2,019 $ 1,094 $ 311 $ 525 $ 449 $ 2,467 $ 5,382 $ 1,480 $ 13,727 720 to 779 1,028 558 153 181 145 777 2,137 941 5,920 660 to 719 334 273 86 84 66 402 985 625 2,855 Less than 660 52 74 39 39 33 345 277 620 1,479 No FICO score available 1 1 1 1 1 9 13 80 107 Total home equity $ 3,434 $ 2,000 $ 590 $ 830 $ 694 $ 4,000 $ 8,794 $ 3,746 $ 24,088 Residential real estate Current estimated LTV ratios Greater than 100% $ 3 $ 52 $ 26 $ 42 $ 41 $ 160 $ 324 Greater than or equal to 80% to 100% 495 422 127 156 124 307 1,631 Less than 80% 7,491 3,656 992 1,706 1,847 3,991 19,683 Government insured or guaranteed loans 7 28 27 38 57 765 922 Total residential real estate $ 7,996 $ 4,158 $ 1,172 $ 1,942 $ 2,069 $ 5,223 $ 22,560 Updated FICO scores Greater than or equal to 780 $ 5,425 $ 3,099 $ 814 $ 1,432 $ 1,538 $ 2,551 $ 14,859 720 to 779 2,268 820 220 340 335 818 4,801 660 to 719 252 161 76 98 92 475 1,154 Less than 660 40 48 33 31 41 485 678 No FICO score available 4 2 2 3 6 129 146 Government insured or guaranteed loans 7 28 27 38 57 765 922 Total residential real estate $ 7,996 $ 4,158 $ 1,172 $ 1,942 $ 2,069 $ 5,223 $ 22,560 Automobile, Credit Card, Education and Other Consumer The following table presents credit quality indicators for the automobile, credit card, education and other consumer loan classes: Table 44: Credit Quality Indicators for Automobile, Credit Card, Education and Other Consumer Loan Classes Term Loans by Origination Year March 31, 2021 - In millions 2021 2020 2019 2018 2017 Prior Revolving Loans Revolving Loans Converted to Term Total Loans Updated FICO Scores Automobile FICO score greater than or equal to 780 $ 775 $ 1,545 $ 1,701 $ 688 $ 362 $ 216 $ 5,287 720 to 779 242 1,067 1,380 678 320 157 3,844 660 to 719 63 591 1,076 590 240 106 2,666 Less than 660 4 228 723 535 208 89 1,787 Total automobile $ 1,084 $ 3,431 $ 4,880 $ 2,491 $ 1,130 $ 568 $ 13,584 Credit card FICO score greater than or equal to 780 $ 1,513 $ 3 $ 1,516 720 to 779 1,541 11 1,552 660 to 719 1,621 25 1,646 Less than 660 817 46 863 No FICO score available or required (a) 94 4 98 Total credit card $ 5,586 $ 89 $ 5,675 Education FICO score greater than or equal to 780 $ 1 $ 64 $ 86 $ 70 $ 55 $ 450 $ 726 720 to 779 4 34 44 37 27 202 348 660 to 719 4 10 14 14 8 90 140 Less than 660 1 1 3 2 2 35 44 No FICO score available or required (a) 3 12 9 5 3 1 33 Education loans using FICO credit metric 13 121 156 128 95 778 1,291 Other internal credit metrics 1,551 1,551 Total education $ 13 $ 121 $ 156 $ 128 $ 95 $ 2,329 $ 2,842 Other consumer FICO score greater than or equal to 780 $ 31 $ 135 $ 150 $ 49 $ 15 $ 40 $ 73 $ 1 $ 494 720 to 779 33 169 206 65 16 23 109 621 660 to 719 27 111 185 68 13 14 107 525 Less than 660 1 34 81 34 7 7 47 1 212 Other consumer loans using FICO credit metric 92 449 622 216 51 84 336 2 1,852 Other internal credit metrics 32 29 28 29 26 126 2,365 8 2,643 Total other consumer $ 124 $ 478 $ 650 $ 245 $ 77 $ 210 $ 2,701 $ 10 $ 4,495 Term Loans by Origination Year December 31, 2020 - In millions 2020 2019 2018 2017 2016 Prior Revolving Loans Revolving Loans Converted to Term Total Loans Updated FICO Scores Automobile FICO score greater than or equal to 780 $ 1,807 $ 1,915 $ 807 $ 452 $ 246 $ 58 $ 5,285 720 to 779 1,098 1,581 789 381 167 44 4,060 660 to 719 617 1,222 684 288 109 31 2,951 Less than 660 192 776 598 240 87 29 1,922 Total automobile $ 3,714 $ 5,494 $ 2,878 $ 1,361 $ 609 $ 162 $ 14,218 Credit card FICO score greater than or equal to 780 $ 1,635 $ 3 $ 1,638 720 to 779 1,724 11 1,735 660 to 719 1,765 26 1,791 Less than 660 902 51 953 No FICO score available or required (a) 94 4 98 Total credit card $ 6,120 $ 95 $ 6,215 Education FICO score greater than or equal to 780 $ 34 $ 90 $ 74 $ 59 $ 50 $ 428 $ 735 720 to 779 24 46 38 28 20 190 346 660 to 719 15 15 14 9 6 90 149 Less than 660 3 2 3 2 2 37 49 No FICO score available or required (a) 16 10 6 3 1 36 Education loans using FICO credit metric 92 163 135 101 78 746 1,315 Other internal credit metrics 1,631 1,631 Total education $ 92 $ 163 $ 135 $ 101 $ 78 $ 2,377 $ 2,946 Other consumer FICO score greater than or equal to 780 $ 162 $ 187 $ 63 $ 21 $ 5 $ 42 $ 86 $ 1 $ 567 720 to 779 197 247 82 22 5 22 123 698 660 to 719 127 210 81 17 3 14 117 1 570 Less than 660 28 86 41 9 2 8 53 1 228 Other consumer loans using FICO credit metric 514 730 267 69 15 86 379 3 2,063 Other internal credit metrics 67 33 37 26 60 75 2,334 3 2,635 Total other consumer $ 581 $ 763 $ 304 $ 95 $ 75 $ 161 $ 2,713 $ 6 $ 4,698 (a) Loans with no FICO score available or required generally refers to new accounts issued to borrowers with limited credit history, accounts for which we cannot obtain an updated FICO score (e.g., recent profile changes), cards issued with a business name and/or cards secured by collateral. Management proactively assesses the risk and size of this loan category and, when necessary, takes actions to mitigate the credit risk. Troubled Debt Restructurings Table 45 quantifies the number of loans that were classified as TDRs as well as the change in the loans’ balance as a result of becoming a TDR during the three months ended March 31, 2021 and March 31, 2020. Additionally, the table provides information about the types of TDR concessions. See Note 1 Accounting Policies and Note 4 Loans and Related Allowance for Credit Losses included in Item 8 of our 2020 Form 10-K for additional discussion of TDRs. Table 45: Financial Impact and TDRs by Concession Type (a) Pre-TDR Post-TDR Amortized Cost Basis (c) During the three months ended March 31, 2021 Number Principal Rate Other Total Commercial 19 $ 93 $ 94 $ 94 Consumer 2,096 32 $ 16 12 28 Total TDRs 2,115 $ 125 $ 16 $ 106 $ 122 During the three months ended March 31, 2020 Commercial 13 $ 62 $ 6 $ 37 $ 43 Consumer 3,567 36 $ 22 10 32 Total TDRs 3,580 $ 98 $ 6 $ 22 $ 47 $ 75 (a) Impact of partial charge-offs at TDR date is included in this table. (b) Represents the amortized cost basis of the loans as of the quarter end prior to TDR designation. (c) Represents the amortized cost basis of the TDRs as of the end of the quarter in which the TDR occurs. After a loan is determined to be a TDR, we continue to track its performance under its most recent restructured terms. We consider a TDR to have subsequently defaulted when it becomes 60 days past due after the most recent date the loan was restructured. Loans that were both (i) classified as TDRs within the last twelve months from the balance sheet date, and (ii) subsequently defaulted during the the three months ended March 31, 2021 and March 31, 2020 totaled $15 million and $29 million, respectively. Allowance for Credit Losses We maintain the ACL related to loans at levels that we believe to be appropriate to absorb expected credit losses in the portfolios as of the balance sheet date. See Note 1 Accounting Policies included in Item 8 of our 2020 Form 10-K for a discussion of the methodologies used to determine this allowance. A rollforward of the ACL related to loans follows: Table 46: Rollforward of Allowance for Credit Losses (a) Three months ended March 31, 2021 Three Months Ended March 31, 2020 In millions Commercial Consumer Total Commercial Consumer Total Allowance for loan and lease losses Beginning balance $ 3,337 $ 2,024 $ 5,361 $ 1,812 $ 930 $ 2,742 Adoption of ASU 2016-13 (b) (304) 767 463 Beginning balance, adjusted 3,337 2,024 5,361 1,508 1,697 3,205 Charge-offs (69) (174) (243) (83) (221) (304) Recoveries 18 79 97 24 68 92 Net (charge-offs) (51) (95) (146) (59) (153) (212) Provision for (recapture of) credit losses (204) (298) (502) 531 421 952 Other 1 1 (1) (1) Ending balance $ 3,083 $ 1,631 $ 4,714 $ 1,979 $ 1,965 $ 3,944 Allowance for unfunded lending related commitments (c) Beginning balance $ 485 $ 99 $ 584 $ 316 $ 2 $ 318 Adoption of ASU 2016-13 (b) 53 126 179 Beginning balance, adjusted 485 99 584 369 128 497 Provision for (recapture of) credit losses (82) 5 (77) (25) (22) (47) Ending balance $ 403 $ 104 $ 507 $ 344 $ 106 $ 450 Allowance for credit losses at March 31 $ 3,486 $ 1,735 $ 5,221 $ 2,323 $ 2,071 $ 4,394 Allowance for credit losses at December 31 $ 3,822 $ 2,123 $ 5,945 $ 2,128 $ 932 $ 3,060 (a) Excludes allowances for investment securities and other financial assets, which together totaled $136 million and $21 million at March 31, 2021 and March 31, 2020, respectively. (b) Represents the impact of adopting ASU 2016-13, Financial Instruments - Credit Losses on January 1, 2020 and our transition from an incurred loss methodology for our reserves to an expected credit loss methodology. (c) See Note 8 Commitments for additional information about the underlying commitments related to this allowance. The ACL at March 31, 2021 totaled $5.2 billion, a $0.7 billion decrease compared to December 31, 2020. This decrease in reserves was primarily attributable to the improved economic outlook and portfolio changes, partially offset by increases in qualitative factor reserves due to portfolio sensitivity from specific customers and segments still impacted by the pandemic. The following summarizes the changes in these factors that influenced the current ACL: • The economic scenarios used for the period ended March 31, 2021 were designed to reflect an improved near-term economic outlook in comparison to the scenarios used for the period ended December 31, 2020. This improvement was the result of declining COVID-19 cases, more rapid vaccine distribution, the passage of the American Rescue Plan stimulus package and economic momentum fueled by increased consumer spending. • Portfolio changes primarily reflecting decreases in both commercial and consumer loan balances drove reserve declines at March 31, 2021. Declines were attributable to lower utilization of loan commitments and softer loan production in the commercial portfolio and paydowns outpacing new originations in the consumer portfolio. • Increases in qualitative factor reserves at March 31, 2021 were attributable to the considerable uncertainty that remains regarding overall lifetime loss content for both our commercial and consumer portfolios, specifically as it relates to our customers that are less likely to benefit from the economic recovery currently underway. For commercial borrowers, there are concerns around industries that are dependent on in-person gatherings, hospitality and tourism. For consumer borrowers, payment behavior once the government stimulus wanes is also difficult to predict. The ACL at March 31, 2020 totaled $4.4 billion, a $1.3 billion increase in reserves compared to December 31, 2019. This increase reflected the day-one CECL transition adjustment along with the significantly adverse economic impacts of the pandemic and its resulting effects on credit quality and loan growth in the first quarter of 2020.

Loan Sale and Servicing Activit

Loan Sale and Servicing Activities and Variable Interest Entities	3 Months Ended
	Mar. 31, 2021
Loan Sale and Servicing Activities and Variable Interest Entities [Abstract]
Loan Sale and Servicing Activities and Variable Interest Entities	L OAN S ALE AND S ERVICING A CTIVITIES AND V ARIABLE I NTEREST E NTITIES Loan Sale and Servicing Activities As more fully described in Note 5 Loan Sale and Servicing Activities and Variable Interest Entities in Item 8 of our 2020 Form 10-K, we have transferred residential and commercial mortgage loans in securitization or sales transactions in which we have continuing involvement. Our continuing involvement generally consists of servicing, repurchasing previously transferred loans under certain conditions and loss share arrangements, and, in limited circumstances, holding of mortgage-backed securities issued by the securitization SPEs. We earn servicing and other ancillary fees for our role as servicer and, depending on the contractual terms of the servicing arrangement, we can be terminated as servicer with or without cause. At the consummation date of each type of loan transfer where we retain the servicing, we recognize a servicing right at fair value. See Note 8 Commitments and Note 11 Fair Value for information on our servicing rights, including the carrying value of servicing assets. The following table provides cash flows associated with our loan sale and servicing activities: Table 47: Cash Flows Associated with Loan Sale and Servicing Activities In millions Residential Commercial Cash Flows - Three months ended March 31, 2021 Sales of loans (b) $ 1,239 $ 988 Repurchases of previously transferred loans (c) $ 93 $ 33 Servicing fees (d) $ 82 $ 38 Servicing advances recovered/(funded), net $ 17 $ (10) Cash flows on mortgage-backed securities held (e) $ 2,555 $ 29 Cash Flows - Three months ended March 31, 2020 Sales of loans (b) $ 1,334 $ 493 Repurchases of previously transferred loans (c) $ 95 $ 15 Servicing fees (d) $ 85 $ 33 Servicing advances recovered/(funded), net $ 12 $ 12 Cash flows on mortgage-backed securities held (e) $ 1,361 $ 37 (a) Represents cash flow information associated with both commercial mortgage loan transfers and servicing activities. (b) Gains/losses recognized on sales of loans were insignificant for the periods presented. (c) Includes both residential and commercial mortgage government insured or guaranteed loans eligible for repurchase through the exercise of our ROAP option, as well as residential mortgage loans repurchased due to alleged breaches of origination covenants or representations and warranties made to purchasers. (d) Includes contractually specified servicing fees, late charges and ancillary fees. (e) Represents cash flows on securities where we transferred to and/or service loans for a securitization SPE and we hold securities issued by that SPE. The carrying values of such securities held were $15.4 billion, $16.5 billion and $17.1 billion in residential mortgage-backed securities and $0.8 billion in commercial mortgage-backed securities at March 31, 2021, December 31, 2020 and March 31, 2020. Table 48 presents information about the principal balances of transferred loans that we service and are not recorded on our Consolidated Balance Sheet. We would only experience a loss on these transferred loans if we were required to repurchase a loan, where the repurchase price exceeded the loan's fair value, due to a breach in representations and warranties or a loss sharing arrangement associated with our continuing involvement with these loans. The estimate of losses related to breaches in representations and warranties was insignificant at March 31, 2021. Table 48: Principal Balance, Delinquent Loans and Net Charge-offs Related to Serviced Loans For Others In millions Residential Mortgages Commercial Mortgages (a) March 31, 2021 Total principal balance $ 41,096 $ 41,735 Delinquent loans (b) $ 450 $ 126 December 31, 2020 Total principal balance $ 43,351 $ 40,790 Delinquent loans (b) $ 453 $ 136 Three months ended March 31, 2021 Net charge-offs (c) $ 2 $ 153 Three months ended March 31, 2020 Net charge-offs (c) $ 8 $ 99 (a) Represents information at the securitization level in which we have sold loans and we are the servicer for the securitization. (b) Serviced delinquent loans are 90 days or more past due or are in process of foreclosure. (c) Net charge-offs for Residential mortgages represent credit losses less recoveries distributed and as reported to investors during the period. Net charge-offs for Commercial mortgages represent credit losses less recoveries distributed and as reported by the trustee for commercial mortgage-backed securitizations. Realized losses for Agency securitizations are not reflected as we do not manage the underlying real estate upon foreclosure and, as such, do not have access to loss information. Variable Interest Entities (VIEs) As discussed in Note 5 Loan Sale and Servicing Activities and Variable Interest Entities in Item 8 of our 2020 Form 10-K, we are involved with various entities in the normal course of business that are deemed to be VIEs. The following table provides a summary of non-consolidated VIEs with which we have significant continuing involvement but are not the primary beneficiary. We have excluded certain transactions with non-consolidated VIEs from the balances presented in Table 49 where we have determined that our continuing involvement is not significant. We do not consider our continuing involvement to be significant when it relates to a VIE where we only invest in securities issued by the VIE and were not involved in the design of the VIE or where no transfers have occurred between us and the VIE. In addition, where we only have lending arrangements in the normal course of business with entities that could be VIEs, we have excluded these transactions with non-consolidated entities from the balances presented in Table 49. These loans are included as part of the asset quality disclosures that we make in Note 4 Loans and Related Allowance for Credit Losses. Table 49: Non-Consolidated VIEs In millions PNC Risk of Loss (a) Carrying Value of Assets Carrying Value of Liabilities March 31, 2021 Mortgage-backed securitizations (b) $ 16,883 $ 16,883 (c) $ 1 Tax credit investments and other 3,094 3,077 (d) 1,425 (e) Total $ 19,977 $ 19,960 $ 1,426 December 31, 2020 Mortgage-backed securitizations (b) $ 18,207 $ 18,207 (c) $ 1 Tax credit investments and other 3,121 2,894 (d) 1,198 (e) Total $ 21,328 $ 21,101 $ 1,199 (a) Represents loans, investments and other assets related to non-consolidated VIEs, net of collateral (if applicable). The risk of loss excludes any potential tax recapture associated with tax credit investments. (b) Amounts reflect involvement with securitization SPEs where we transferred to and/or service loans for an SPE and we hold securities issued by that SPE. Values disclosed in the PNC Risk of Loss column represent our maximum exposure to loss for those securities’ holdings. (c) Included in Investment securities, Mortgage servicing rights and Other assets on our Consolidated Balance Sheet. (d) Included in Investment securities, Loans, Equity investments and Other assets on our Consolidated Balance Sheet. (e) Included in Deposits and Other liabilities on our Consolidated Balance Sheet. We make certain equity investments in various tax credit limited partnerships or LLCs. The purpose of these investments is to achieve a satisfactory return on capital and to assist us in achieving goals associated with the CRA. Within Income taxes, during both the three months ended March 31, 2021 and March 31, 2020, we recognized less than $0.1 billion of amortization, tax credits and other tax benefits associated with qualified investments in low income housing tax credits.

Goodwill and Mortgage Servicing

Goodwill and Mortgage Servicing Rights	3 Months Ended
	Mar. 31, 2021
Goodwill and Intangible Assets Disclosure [Abstract]
Goodwill and Mortgage Servicing Rights	G OODWILL AND M ORTGAGE S ERVICING R IGHTS Goodwill See Note 6 Goodwill and Mortgage Servicing Rights in the Notes to Consolidated Financial Statements included in Item 8 of our 2020 Form 10-K for more information regarding our goodwill. Mortgage Servicing Rights We recognize the right to service mortgage loans for others as an intangible asset when the servicing income we receive is more than adequate compensation. MSRs are purchased or originated when loans are sold with servicing retained. MSRs totaled $1.7 billion and $1.2 billion at March 31, 2021 and December 31, 2020, respectively, and consisted of loan servicing contracts for commercial and residential mortgages measured at fair value. MSRs are subject to declines in value from actual or expected prepayment of the underlying loans and defaults, as well as market driven changes in interest rates. We manage this risk by economically hedging the fair value of MSRs with securities and derivative instruments which are expected to increase (or decrease) in value when the value of MSRs decreases (or increases). Changes in the commercial and residential MSRs follow: Table 50: Mortgage Servicing Rights Commercial MSRs Residential MSRs In millions 2021 2020 2021 2020 January 1 $ 569 $ 649 $ 673 $ 995 Additions: From loans sold with servicing retained 18 11 13 10 Purchases 13 19 71 18 Changes in fair value due to: Time and payoffs (a) (28) (35) (73) (39) Other (b) 129 (167) 295 (379) March 31 $ 701 $ 477 $ 979 $ 605 Related unpaid principal balance at March 31 $ 256,198 $ 225,769 $ 117,287 $ 118,104 Servicing advances at March 31 $ 447 $ 145 $ 126 $ 99 (a) Represents decrease in MSR value due to passage of time, including the impact from both regularly scheduled loan principal payments and loans that were paid down or paid off during the period. (b) Represents MSR value changes resulting primarily from market-driven changes in interest rates. Sensitivity Analysis The fair value of commercial and residential MSRs and significant inputs to the valuation models as of March 31, 2021 and December 31, 2020 are shown in Tables 51 and 52. The expected and actual rates of mortgage loan prepayments are significant factors driving the fair value. Management uses both internal proprietary models and a third-party model to estimate future commercial mortgage loan prepayments and a third-party model to estimate future residential mortgage loan prepayments. These models have been refined based on current market conditions and management judgment. Future interest rates are another important factor in the valuation of MSRs. Management utilizes market implied forward interest rates to estimate the future direction of mortgage and discount rates. The forward rates utilized are derived from the current yield curve for U.S. dollar interest rate swaps and are consistent with pricing of capital markets instruments. Changes in the shape and slope of the forward curve in future periods may result in volatility in the fair value estimate. A sensitivity analysis of the hypothetical effect on the fair value of MSRs to adverse changes in key assumptions is presented in Tables 51 and 52. These sensitivities do not include the impact of the related hedging activities. Changes in fair value generally cannot be extrapolated because the relationship of the change in the assumption to the change in fair value may not be linear. Also, the effect of a variation in a particular assumption on the fair value of the MSRs is calculated independently without changing any other assumption. In reality, changes in one factor may result in changes in another ( e.g. , changes in mortgage interest rates, which drive changes in prepayment rate estimates, could result in changes in the interest rate spread), which could either magnify or counteract the sensitivities. The following tables set forth the fair value of commercial and residential MSRs and the sensitivity analysis of the hypothetical effect on the fair value of MSRs to immediate adverse changes of 10% and 20% in those assumptions. Table 51: Commercial Mortgage Servicing Rights – Key Valuation Assumptions Dollars in millions March 31 December 31 Fair value $ 701 $ 569 Weighted-average life (years) 4.7 4.4 Weighted-average constant prepayment rate 4.87 % 4.87 % Decline in fair value from 10% adverse change $ 11 $ 9 Decline in fair value from 20% adverse change $ 22 $ 18 Effective discount rate 7.39 % 7.33 % Decline in fair value from 10% adverse change $ 20 $ 15 Decline in fair value from 20% adverse change $ 40 $ 31 Table 52: Residential Mortgage Servicing Rights – Key Valuation Assumptions Dollars in millions March 31 December 31 Fair value $ 979 $ 673 Weighted-average life (years) 6.2 3.8 Weighted-average constant prepayment rate 10.72 % 21.13 % Decline in fair value from 10% adverse change $ 38 $ 41 Decline in fair value from 20% adverse change $ 79 $ 82 Weighted-average option adjusted spread 944 bps 922 bps Decline in fair value from 10% adverse change $ 34 $ 20 Decline in fair value from 20% adverse change $ 66 $ 38 Fees from mortgage loan servicing, which includes contractually specified servicing fees, late fees and ancillary fees were $0.1 billion for the three months ended March 31, 2021 and 2020. We also generate servicing fees from fee-based activities provided to others for which we do not have an associated servicing asset. Fees from commercial and residential MSRs are reported within Noninterest income on our Consolidated Income Statement in Corporate services and Residential mortgage, respectively.

Leases

Leases	3 Months Ended
	Mar. 31, 2021
Leases [Abstract]
Leases	L EASES Table 53: Lessor Income Three months ended In millions 2021 2020 Product Sales-type leases and direct financing leases (a) $ 62 $ 71 Operating leases (b) 20 27 Lessor income $ 82 $ 98 (a) Included in Loan interest income on the Consolidated Income Statement. (b) Included in Corporate services on the Consolidated Income Statement.
Leases	L EASES Table 53: Lessor Income Three months ended In millions 2021 2020 Product Sales-type leases and direct financing leases (a) $ 62 $ 71 Operating leases (b) 20 27 Lessor income $ 82 $ 98 (a) Included in Loan interest income on the Consolidated Income Statement. (b) Included in Corporate services on the Consolidated Income Statement.

Commitments

Commitments	3 Months Ended
	Mar. 31, 2021
Commitments and Guarantees [Abstract]
Commitments	COMMITMENTSIn the normal course of business, we have various commitments outstanding, certain of which are not included on our Consolidated Balance Sheet. The following table presents our outstanding commitments to extend credit along with other commitments as of March 31, 2021 and December 31, 2020, respectively.Table 54: Commitments to Extend Credit and Other Commitments In millions March 31 December 31 Commitments to extend credit Commercial $ 154,482 $ 153,089 Home equity lines of credit 16,604 16,626 Credit card 31,132 31,019 Other 8,195 7,087 Total commitments to extend credit 210,413 207,821 Net outstanding standby letters of credit (a) 9,090 9,053 Standby bond purchase agreements (b) 1,543 1,448 Other commitments (c) 2,733 2,046 Total commitments to extend credit and other commitments $ 223,779 $ 220,368 (a) Net outstanding standby letters of credit include $3.7 billion and $3.8 billion at March 31, 2021 and December 31, 2020, respectively, which support remarketing programs. (b) We enter into standby bond purchase agreements to support municipal bond obligations. (c) Includes $1.1 billion related to investments in qualified affordable housing projects for both March 31, 2021 and December 31, 2020. Commitments to Extend Credit Commitments to extend credit, or net unfunded loan commitments, represent arrangements to lend funds or provide liquidity subject to specified contractual conditions. These commitments generally have fixed expiration dates, may require payment of a fee, and generally contain termination clauses in the event the customer’s credit quality deteriorates. Net Outstanding Standby Letters of Credit We issue standby letters of credit and share in the risk of standby letters of credit issued by other financial institutions, in each case to support obligations of our customers to third parties, such as insurance requirements and the facilitation of transactions involving capital markets product execution. Approximately 97% of our net outstanding standby letters of credit were rated as Pass as of March 31, 2021, with the remainder rated as Criticized. An internal credit rating of Pass indicates the expected risk of loss is currently low, while a rating of Criticized indicates a higher degree of risk. If the customer fails to meet its financial or performance obligation to the third party under the terms of the contract or there is a need to support a remarketing program, then upon a draw by a beneficiary, subject to the terms of the letter of credit, we would be obligated to make payment to them. The standby letters of credit outstanding on March 31, 2021 had terms ranging from less than one year to six years. As of March 31, 2021, assets of $1.3 billion secured certain specifically identified standby letters of credit. In addition, a portion of the remaining standby letters of credit issued on behalf of specific customers is also secured by collateral or guarantees that secure the customers’ other obligations to us. The carrying amount of the liability for our obligations related to standby letters of credit and participations in standby letters of credit was $0.1 billion at March 31, 2021 and is included in Other liabilities on our Consolidated Balance Sheet.

Total Equity and Other Comprehe

Total Equity and Other Comprehensive Income	3 Months Ended
	Mar. 31, 2021
Other Comprehensive Income [Abstract]
Total Equity and Other Comprehensive Income Disclosure	T OTAL E QUITY A ND O THER C OMPREHENSIVE I NCOME Table 55: Rollforward of Total Equity Shareholders’ Equity In millions Shares Common Capital Capital Retained Accumulated Treasury Non- Total Equity Three months ended Balance at December 31, 2019 (a) 433 $ 2,712 $ 3,993 $ 12,376 $ 42,215 $ 799 $ (12,781) $ 29 $ 49,343 Cumulative effect of ASU 2016-13 adoption (b) (671) (671) Balance at January 1, 2020 (a) 433 $ 2,712 $ 3,993 $ 12,376 $ 41,544 $ 799 $ (12,781) $ 29 $ 48,672 Net income 908 7 915 Other comprehensive income, net of tax 1,719 1,719 Cash dividends declared - Common (503) (503) Cash dividends declared - Preferred (63) (63) Preferred stock discount accretion 1 (1) Treasury stock activity (9) 49 (1,359) (1,310) Other (131) (9) (140) Balance at March 31, 2020 (a) 424 $ 2,712 $ 3,994 $ 12,294 $ 41,885 $ 2,518 $ (14,140) $ 27 $ 49,290 Balance at December 31, 2020 (a) 424 $ 2,713 $ 3,517 $ 12,367 $ 46,848 $ 2,770 $ (14,205) $ 31 $ 54,041 Net income 1,816 10 1,826 Other comprehensive income (loss), net of tax (1,480) (1,480) Cash dividends declared - Common (493) (493) Cash dividends declared - Preferred (57) (57) Preferred stock discount accretion 1 (1) Treasury stock activity 1 69 59 128 Other (75) (11) (86) Balance at March 31, 2021 (a) 425 $ 2,713 $ 3,518 $ 12,361 $ 48,113 $ 1,290 $ (14,146) $ 30 $ 53,879 (a) The par value of our preferred stock outstanding was less than $0.5 million at each date and, therefore, is excluded from this presentation. (b) Represents the cumulative effect of adopting ASU 2016-13 - Financial Instruments - Credit Losses . Details of other comprehensive income (loss) are as follows: Table 56: Other Comprehensive Income (Loss) Three months ended March 31 2021 2020 In millions Pre-tax Tax effect After-tax Pre-tax Tax effect After-tax Debt securities Net unrealized gains (losses) on securities $ (1,181) $ 278 $ (903) $ 1,662 $ (381) $ 1,281 Less: Net realized gains (losses) reclassified to earnings (a) 13 (3) 10 182 (42) 140 Net change (1,194) 281 (913) 1,480 (339) 1,141 Cash flow hedge derivatives Net unrealized gains (losses) on cash flow hedge derivatives (640) 151 (489) 830 (190) 640 Less: Net realized gains (losses) reclassified to earnings (a) 135 (32) 103 45 (10) 35 Net change (775) 183 (592) 785 (180) 605 Pension and other postretirement benefit plan adjustments Net pension and other postretirement benefit plan activity and other reclassified to 30 (7) 23 12 (3) 9 Net change 30 (7) 23 12 (3) 9 Other Net unrealized gains (losses) on other transactions 1 1 2 8 (18) (10) Net change 1 1 2 8 (18) (10) Total other comprehensive income (loss) from continuing operations (1,938) 458 (1,480) 2,285 (540) 1,745 Total other comprehensive income (loss) from discontinued operations (34) 8 (26) Total other comprehensive income (loss) $ (1,938) $ 458 $ (1,480) $ 2,251 $ (532) $ 1,719 (a) Reclassifications for pre-tax debt securities and cash flow hedges are recorded in interest income and noninterest income on the Consolidated Income Statement. (b) Reclassifications include amortization of actuarial losses (gains) and amortization of prior period services costs (credits) which are recorded in noninterest expense on the Consolidated Income Statement. Table 57: Accumulated Other Comprehensive Income (Loss) Components In millions, after-tax Debt securities Cash flow hedge derivatives Pension and other postretirement benefit plan adjustments Other Accumulated other Comprehensive Income from Continuing Operations Accumulated other Comprehensive Income from Discontinued Operations Total Three months ended Balance at December 31, 2019 $ 1,067 $ 276 $ (408) $ (21) $ 914 $ (115) $ 799 Net activity 1,141 605 9 (10) 1,745 (26) 1,719 Balance at March 31, 2020 $ 2,208 $ 881 $ (399) $ (31) $ 2,659 $ (141) $ 2,518 Balance at December 31, 2020 $ 2,462 $ 659 $ (345) $ (6) $ 2,770 $ 2,770 Net activity (913) (592) 23 2 (1,480) (1,480) Balance at March 31, 2021 $ 1,549 $ 67 $ (322) $ (4) $ 1,290 $ 1,290 The following table provides the dividends per share for PNC's common and preferred stock: Table 58: Dividends Per Share (a) Three months ended March 31 2021 2020 Common Stock $ 1.15 $ 1.15 Preferred Stock Series B $ 0.45 $ 0.45 Series O $ 3,375 $ 3,375 Series P $ 1,531 $ 1,531 Series Q (b) $ 1,344 (a) Dividends are payable quarterly other than Series O, Series R and Series S preferred stock, which are payable semiannually, with the Series O payable in different quarters from the Series R and Series S preferred stock. (b) On September 1, 2020, PNC redeemed all 4,800 shares of its Series Q Preferred Stock, as well as all 19.2 million Depositary Shares representing fractional interest in such shares. On April 1, 2021, the PNC Board of Directors declared a quarterly cash dividend on common stock of $1.15 per share payable on May 5, 2021.

Earnings per Share

Earnings per Share	3 Months Ended
	Mar. 31, 2021
Earnings Per Share [Abstract]
Earnings per Share	E ARNINGS P ER S HARE Table 59: Basic and Diluted Earnings Per Common Share Three months ended In millions, except per share data 2021 2020 Basic Net income from continuing operations $ 1,826 $ 759 Less: Net income attributable to noncontrolling interests 10 7 Preferred stock dividends 57 63 Preferred stock discount accretion and redemptions 1 1 Net income from continuing operations attributable to common shareholders 1,758 688 Less: Dividends and undistributed earnings allocated to nonvested restricted shares 8 3 Net income from continuing operations attributable to basic common shareholders $ 1,750 $ 685 Net income from discontinued operations attributable to common shareholders $ 156 Less: Undistributed earnings allocated to nonvested restricted shares 1 Net income from discontinued operations attributable to basic common shareholders $ 155 Basic weighted-average common shares outstanding 426 429 Basic earnings per common share from continuing operations (a) $ 4.11 $ 1.59 Basic earnings per common share from discontinued operations (a) $ 0.37 Basic earnings per common share $ 4.11 $ 1.96 Diluted Net income from continuing operations attributable to diluted common shareholders $ 1,750 $ 685 Net income from discontinued operations attributable to basic common shareholders $ 155 Less: Impact of earnings per share dilution from discontinued operations 1 Net income from discontinued operations attributable to diluted common shareholders $ 154 Basic weighted-average common shares outstanding 426 429 Dilutive potential common shares 1 Diluted weighted-average common shares outstanding 426 430 Diluted earnings per common share from continuing operations (a) $ 4.10 $ 1.59 Diluted earnings per common share from discontinued operations (a) $ 0.36 Diluted earnings per common share $ 4.10 $ 1.95 (a) Basic and diluted earnings per share under the two-class method are determined on net income reported on the income statement less earnings allocated to nonvested restricted shares and restricted share units with nonforfeitable dividends and dividend rights (participating securities).

Fair Value

Fair Value	3 Months Ended
	Mar. 31, 2021
Fair Value [Abstract]
Fair Value	F AIR V ALUE Fair Value Measurement We measure certain financial assets and liabilities at fair value. Fair value is defined as the price that would be received to sell an asset or the price that would be paid to transfer a liability on the measurement date, and is determined using an exit price in the principal or most advantageous market for the asset or liability in an orderly transaction between market participants. The fair value hierarchy established by GAAP requires us to maximize the use of observable inputs when measuring fair value. For more information regarding the fair value hierarchy, see Note 15 Fair Value in Item 8 of our 2020 Form 10-K. Assets and Liabilities Measured at Fair Value on a Recurring Basis For more information on the valuation methodologies used to measure assets and liabilities at fair value on a recurring basis, see Note 15 Fair Value in Item 8 of our 2020 Form 10-K. The following table summarizes our assets and liabilities measured at fair value on a recurring basis, including instruments for which we have elected the fair value option. Table 60: Fair Value Measurements – Recurring Basis Summary March 31, 2021 December 31, 2020 In millions Level 1 Level 2 Level 3 Total Level 1 Level 2 Level 3 Total Assets Residential mortgage loans held for sale $ 1,087 $ 165 $ 1,252 $ 691 $ 163 $ 854 Commercial mortgage loans held for sale 329 56 385 305 57 362 Securities available for sale U.S. Treasury and government agencies $ 21,997 3,953 25,950 $ 16,675 4,036 20,711 Residential mortgage-backed Agency 51,554 51,554 48,911 48,911 Non-agency 108 1,316 1,424 136 1,365 1,501 Commercial mortgage-backed Agency 2,284 2,284 2,688 2,688 Non-agency 4,225 11 4,236 3,678 11 3,689 Asset-backed 5,847 194 6,041 4,951 199 5,150 Other 5,238 72 5,310 4,636 72 4,708 Total securities available for sale 21,997 73,209 1,593 96,799 16,675 69,036 1,647 87,358 Loans 730 711 1,441 718 647 1,365 Equity investments (a) 1,133 1,343 2,725 1,070 1,263 2,629 Residential mortgage servicing rights 979 979 673 673 Commercial mortgage servicing rights 701 701 569 569 Trading securities (b) 576 1,012 1,588 548 1,690 2,238 Financial derivatives (b) (c) 4,853 63 4,916 6,415 118 6,533 Other assets 384 93 477 373 81 454 Total assets (d) $ 24,090 $ 81,313 $ 5,611 $ 111,263 $ 18,666 $ 78,936 $ 5,137 $ 103,035 Liabilities Other borrowed funds $ 790 $ 46 $ 2 $ 838 $ 661 $ 44 $ 2 $ 707 Financial derivatives (c) (e) 2,796 227 3,023 2,483 273 2,756 Other liabilities 73 73 43 43 Total liabilities (f) $ 790 $ 2,842 $ 302 $ 3,934 $ 661 $ 2,527 $ 318 $ 3,506 (a) Certain investments that are measured at fair value using the net asset value per share (or its equivalent) practical expedient have not been classified in the fair value hierarchy. (b) Included in Other assets on the Consolidated Balance Sheet. (c) Amounts at March 31, 2021 and December 31, 2020 are presented gross and are not reduced by the impact of legally enforceable master netting agreements that allow us to net positive and negative positions and cash collateral held or placed with the same counterparty. See Note 12 Financial Derivatives for additional information related to derivative offsetting. (d) Total assets at fair value as a percentage of total consolidated assets was 23% and 22% as of March 31, 2021 and December 31, 2020, respectively. Level 3 assets as a percentage of total assets at fair value was 5% at both March 31, 2021 and December 31, 2020. Level 3 assets as a percentage of total consolidated assets was 1% at both March 31, 2021 and December 31, 2020. (e) Included in Other liabilities on the Consolidated Balance Sheet. (f) Total liabilities at fair value as a percentage of total consolidated liabilities was 1% at both March 31, 2021 and December 31, 2020. Level 3 liabilities as a percentage of total liabilities at fair value was 8% and 9% as of March 31, 2021 and December 31, 2020, respectively. Level 3 liabilities as a percentage of total consolidated liabilities was less than 1% at both March 31, 2021 and December 31, 2020. Table 61: Reconciliation of Level 3 Assets and Liabilities Three Months Ended March 31, 2021 Total realized / unrealized Unrealized Level 3 Instruments Only Fair Value Dec. 31, 2020 Included in Included Purchases Sales Issuances Settlements Transfers Transfers Fair Assets Residential mortgage loans $ 163 $ 1 $ 35 $ (16) $ (16) $ 3 $ (5) (e) $ 165 Commercial mortgage 57 (1) 56 Securities available for sale Residential mortgage- 1,365 9 $ 16 (74) 1,316 Commercial mortgage- 11 11 Asset-backed 199 1 3 (9) 194 Other 72 1 (1) 72 Total securities 1,647 10 19 1 (84) 1,593 Loans 647 10 88 (3) (28) (3) (e) 711 $ 11 Equity investments 1,263 67 40 (27) 1,343 63 Residential mortgage 673 295 71 $ 13 (73) 979 295 Commercial mortgage 569 129 13 18 (28) 701 129 Financial derivatives 118 (14) 1 (42) 63 (11) Total assets $ 5,137 $ 497 $ 19 $ 249 $ (46) $ 31 $ (271) $ 3 $ (8) $ 5,611 $ 487 Liabilities Other borrowed funds $ 2 $ 1 $ (1) $ 2 Financial derivatives 273 $ (14) $ 2 (34) 227 $ (30) Other liabilities 43 35 30 (35) 73 4 Total liabilities $ 318 $ 21 $ 2 $ 31 $ (70) $ 302 $ (26) Net gains (losses) $ 476 (f) $ 513 (g) Three Months Ended March 31, 2020 Total realized / unrealized Unrealized gains/losses on assets and liabilities held on Consolidated Balance Sheet at Mar. 31, 2020 Level 3 Instruments Only Fair Value Dec. 31, 2019 Included in Earnings Included in Other comprehensive income (b) Purchases Sales Issuances Settlements Transfers into Level 3 Transfers out of Level 3 Fair Value Mar. 31, 2020 Assets Residential mortgage loans $ 2 $ 2 $(1) $ 4 $ (3) (e) $ 4 Commercial mortgage 64 $ (1) $ (3) 60 $ (1) Securities available for sale Residential mortgage- 1,741 16 $ (222) (93) 1,442 Asset-backed 240 2 (29) (11) 202 Other 74 (5) 4 73 Total securities 2,055 18 (256) 4 (104) 1,717 Loans 300 11 16 (26) 362 (d) (8) (e) 655 11 Equity investments 1,276 (69) 71 (58) 1,220 (64) Residential mortgage 995 (379) 18 $ 10 (39) 605 (379) Commercial mortgage 649 (167) 19 11 (35) 477 (166) Trading securities Financial derivatives 54 101 2 (22) 135 75 Other assets Total assets $ 5,395 $ (486) $ (256) $ 132 $ (85) $ 21 $ 159 $ 4 $ (11) $ 4,873 $ (524) Liabilities Other borrowed funds $ 7 $ 12 $ (14) $ 5 Financial derivatives 200 $ 8 $ 1 (24) 185 $ 10 Other liabilities 137 2 11 (78) $ 2 $ (2) 72 (6) Total liabilities $ 344 $ 10 $ 1 $ 23 $ (116) $ 2 $ (2) $ 262 $ 4 Net gains (losses) $ (496) (f) $ (528) (g) (a) Losses for assets are bracketed while losses for liabilities are not. (b) The difference in unrealized gains and losses for the period included in Other comprehensive income and changes in unrealized gains and losses for the period included in Other comprehensive income for securities available for sale held at the end of the reporting period were not significant. (c) The amount of the total gains or losses for the period included in earnings that is attributable to the change in unrealized gains or losses related to those assets and liabilities held at the end of the reporting period. (d) Upon adoption of ASU 2016-13 - Credit Losses , we discontinued the accounting for purchased impaired loans and elected the one-time fair value option election for some of these loans and certain nonperforming loans. (e) Residential mortgage loan transfers out of Level 3 are primarily driven by residential mortgage loans transferring to OREO as well as reclassification of mortgage loans held for sale to held for investment. (f) Net gains (losses) realized and unrealized included in earnings related to Level 3 assets and liabilities included amortization and accretion. The amortization and accretion amounts were included in Interest income on the Consolidated Income Statement and the remaining net gains (losses) realized and unrealized were included in Noninterest income on the Consolidated Income Statement. (g) Net unrealized gains (losses) related to assets and liabilities held at the end of the reporting period were included in Noninterest income on the Consolidated Income Statement. An instrument’s categorization within the hierarchy is based on the lowest level of input that is significant to the fair value measurement. Changes from one quarter to the next related to the observability of inputs to a fair value measurement may result in a reclassification (transfer) of assets or liabilities between hierarchy levels. Quantitative information about the significant unobservable inputs within Level 3 recurring assets and liabilities follows: Table 62: Fair Value Measurements – Recurring Quantitative Information March 31, 2021 Level 3 Instruments Only Fair Value Valuation Techniques Unobservable Inputs Range (Weighted-Average) (a) Commercial mortgage loans held for sale $ 56 Discounted cash flow Spread over the benchmark curve (b) 620bps - 6,350bps (4,038bps) Residential mortgage-backed 1,316 Priced by a third-party vendor using a discounted cash flow pricing model Constant prepayment rate 1.0% - 37.6% (10.2%) Constant default rate 0.0% - 18.8% (6.0%) Loss severity 25.0% -95.7% (48.6%) Spread over the benchmark curve (b) 155bps weighted-average Asset-backed securities 194 Priced by a third-party vendor using a discounted cash flow pricing model Constant prepayment rate 1.0% - 40.0% (8.4%) Constant default rate 1.4% - 6.0% (2.9%) Loss severity 30.0% - 100.0% (55.3%) Spread over the benchmark curve (b) 197bps weighted-average Loans - Residential real estate 429 Consensus pricing (c) Cumulative default rate 3.6% - 100.0% (81.5%) Loss severity 0.0% - 100.0% (10.0%) Discount rate 4.8% - 6.8% (5.1%) 130 Discounted cash flow Loss severity 8.0% weighted-average Discount rate 3.2% weighted-average Loans - Home equity 20 Consensus pricing (c) Cumulative default rate 3.6% -100.0% (85.5%) Loss severity 0.0% - 98.4% (31.5%) Discount rate 4.8% - 6.8% (6.2%) 132 Consensus pricing (c) Credit and liquidity discount 4.7% - 92.0% (44.0%) Equity investments 1,343 Multiple of adjusted earnings Multiple of earnings 4.0x - 20.1x (8.8x) Residential mortgage servicing rights 979 Discounted cash flow Constant prepayment rate 0.0% - 31.4% (10.7%) Spread over the benchmark curve (b) 383bps - 2,893bps (944bps) Commercial mortgage servicing rights 701 Discounted cash flow Constant prepayment rate 4.1% - 13.6% (4.9%) Discount rate 5.5% - 7.6% (7.4%) Financial derivatives - Swaps related to (201) Discounted cash flow Estimated conversion factor of Visa Class B shares into Class A shares 162.3% weighted-average Estimated annual growth rate of Visa Class A share price 16.0% Estimated length of litigation resolution date Q2 2022 Insignificant Level 3 assets, net of 210 Total Level 3 assets, net of liabilities (e) $ 5,309 December 31, 2020 Level 3 Instruments Only Fair Value Valuation Techniques Unobservable Inputs Range (Weighted-Average) (a) Commercial mortgage loans held for sale $ 57 Discounted cash flow Spread over the benchmark curve (b) 630bps - 5,275bps (3,406bps) Residential mortgage-backed 1,365 Priced by a third-party vendor using a discounted cash flow pricing model Constant prepayment rate 1.0% - 37.6% (8.6%) Constant default rate 0.0% - 12.2% (4.7%) Loss severity 25.0% - 95.7% (48.8%) Spread over the benchmark curve (b) 242bps weighted-average Asset-backed securities 199 Priced by a third-party vendor using a discounted cash flow pricing model Constant prepayment rate 1.0% -22.0% (7.4%) Constant default rate 1.0% - 6.0% (3.3%) Loss severity 30.0% - 100.0% (58.1%) Spread over the benchmark curve (b) 291bps weighted-average Loans - Residential real estate 434 Consensus pricing (c) Cumulative default rate 3.6% - 100.0% (82.1%) Loss severity 0.0% - 100.0% (11.2%) Discount rate 4.8% - 6.8% (5.1%) 132 Discounted cash flow Loss severity 8.0% weighted-average Discount rate 3.2% weighted-average Loans - Home equity 21 Consensus pricing (c) Cumulative default rate 3.6% - 100.0% (88.5%) Loss severity 0.0% -98.4% (33.3%) Discount rate 4.8% - 6.8% (6.3%) 60 Consensus pricing (c) Credit and Liquidity discount 17.5% -97.0% (57.7%) Equity investments 1,263 Multiple of adjusted earnings Multiple of earnings 5.0x - 15.9x (8.7x) Residential mortgage servicing rights 673 Discounted cash flow Constant prepayment rate 0.0% - 77.5% (21.1%) Spread over the benchmark curve (b) 325bps - 2,783bps (922bps) Commercial mortgage servicing rights 569 Discounted cash flow Constant prepayment rate 4.0% - 16.1% (4.9%) Discount rate 4.7% - 7.8% (7.3%) Financial derivatives - Swaps related to (252) Discounted cash flow Estimated conversion factor of Visa Class B shares into Class A shares 162.3% weighted-average Estimated annual growth rate of Visa Class A share price 16.0% Estimated length of litigation Q2 2022 Insignificant Level 3 assets, net of 298 Total Level 3 assets, net of liabilities (e) $ 4,819 (a) Unobservable inputs were weighted by the relative fair value of the instruments. (b) The assumed yield spread over the benchmark curve for each instrument is generally intended to incorporate non-interest rate risks, such as credit and liquidity risks. (c) Consensus pricing refers to fair value estimates that are generally internally developed using information such as dealer quotes or other third-party provided valuations or comparable asset prices. (d) Represents the aggregate amount of Level 3 assets and liabilities measured at fair value on a recurring basis that are individually and in the aggregate insignificant. The amount includes certain financial derivative assets and liabilities, trading securities, other securities, residential mortgage loans held for sale, other assets, other borrowed funds and other liabilities. (e) Consisted of total Level 3 assets of $5.6 billion and total Level 3 liabilities of $0.3 billion as of March 31, 2021 and $5.1 billion and $0.3 billion as of December 31, 2020, respectively. Financial Assets Accounted for at Fair Value on a Nonrecurring Basis We may be required to measure certain financial assets at fair value on a nonrecurring basis. These adjustments to fair value usually result from the application of lower of amortized cost or fair value accounting or write-downs of individual assets due to impairment and are included in Table 63. For more information regarding the valuation methodologies of our financial assets measured at fair value on a nonrecurring basis, see Note 15 Fair Value in Item 8 of our 2020 Form 10-K. Table 63: Fair Value Measurements – Nonrecurring (a) (b) (c) Fair Value Gains (Losses) In millions March 31 December 31 March 31 March 31 Assets Nonaccrual loans $ 345 $ 332 $ (17) $ (28) Loans held for sale 243 (17) OREO and foreclosed assets 2 18 (1) Long-lived assets 6 20 (2) (1) Total assets $ 596 $ 370 $ (36) $ (30) (a) All Level 3 as of March 31, 2021 and December 31, 2020, except for $243 million included in Loans held for sale which was categorized as Level 2 as of March 31, 2021. (b) Valuation techniques applied were fair value of property or collateral. (c) Unobservable inputs used were appraised value/sales price, broker opinions or projected income/required improvement costs. Additional quantitative information was not meaningful for the periods presented. Financial Instruments Accounted for under Fair Value Option We elect the fair value option to account for certain financial instruments. For more information on these financial instruments for which the fair value option election has been made, see Note 15 Fair Value in Item 8 of our 2020 Form 10-K. Fair values and aggregate unpaid principal balances of certain items for which we elected the fair value option follow: Table 64: Fair Value Option – Fair Value and Principal Balances March 31, 2021 December 31, 2020 In millions Fair Value Aggregate Unpaid Difference Fair Value Aggregate Unpaid Difference Assets Residential mortgage loans held for sale Accruing loans less than 90 days past due $ 1,204 $ 1,172 $ 32 $ 831 $ 793 $ 38 Accruing loans 90 days or more past due 3 3 4 4 Nonaccrual loans 45 54 (9) 20 24 (4) Total $ 1,252 $ 1,229 $ 23 $ 855 $ 821 $ 34 Commercial mortgage loans held for sale (a) Accruing loans less than 90 days past due $ 380 $ 396 $ (16) $ 357 $ 370 $ (13) Nonaccrual loans 5 6 (1) 5 6 (1) Total $ 385 $ 402 $ (17) $ 362 $ 376 $ (14) Loans Accruing loans less than 90 days past due $ 622 $ 632 $ (10) $ 519 $ 530 $ (11) Accruing loans 90 days or more past due 246 260 (14) 283 295 (12) Nonaccrual loans 573 845 (272) 563 820 (257) Total $ 1,441 $ 1,737 $ (296) $ 1,365 $ 1,645 $ (280) Other assets $ 93 $ 91 $ 2 $ 81 $ 69 $ 12 Liabilities Other borrowed funds $ 28 $ 28 $ 32 $ 33 $ (1) (a) There were no accruing loans 90 days or more past due within this category at March 31, 2021 or December 31, 2020. The changes in fair value for items for which we elected the fair value option are as follows: Table 65: Fair Value Option – Changes in Fair Value (a) Gains (Losses) Three months ended March 31 March 31 In millions 2021 2020 Assets Residential mortgage loans held for sale $ 16 $ 46 Commercial mortgage loans held for sale $ 20 $ 48 Loans $ 14 $ 18 Other assets $ 14 $ (36) (a) The impact on earnings of offsetting hedged items or hedging instruments is not reflected in these amounts. Additional Fair Value Information Related to Financial Instruments Not Recorded at Fair Value The following table presents the carrying amounts and estimated fair values, as well as the level within the fair value hierarchy, of all other financial instruments that are not recorded on our Consolidated Balance Sheet at fair value as of March 31, 2021 and December 31, 2020. For more information regarding the methods and assumptions used to estimate the fair values of financial instruments included in Table 66, see Note 15 Fair Value in Item 8 of our 2020 Form 10-K. Table 66: Additional Fair Value Information Related to Other Financial Instruments Carrying Fair Value In millions Amount Total Level 1 Level 2 Level 3 March 31, 2021 Assets Cash and due from banks $ 7,455 $ 7,455 $ 7,455 Interest-earning deposits with banks 86,161 86,161 $ 86,161 Securities held to maturity 1,459 1,559 874 485 $ 200 Net loans (excludes leases) 224,468 228,650 228,650 Other assets 3,783 3,782 3,780 2 Total assets $ 323,326 $ 327,607 $ 8,329 $ 90,426 $ 228,852 Liabilities Time deposits $ 18,813 $ 18,651 $ 18,651 Borrowed funds 32,192 32,790 31,129 $ 1,661 Unfunded lending related commitments 507 507 507 Other liabilities 486 486 486 Total liabilities $ 51,998 $ 52,434 $ 50,266 $ 2,168 December 31, 2020 Assets Cash and due from banks $ 7,017 $ 7,017 $ 7,017 Interest-earning deposits with banks 85,173 85,173 $ 85,173 Securities held to maturity 1,445 1,604 920 489 $ 195 Net loans (excludes leases) 228,788 233,688 233,688 Other assets 3,601 3,600 3,559 41 Total assets $ 326,024 $ 331,082 $ 7,937 $ 89,221 $ 233,924 Liabilities Time deposits $ 19,692 $ 19,662 $ 19,662 Borrowed funds 36,488 37,192 35,571 $ 1,621 Unfunded lending related commitments 584 584 584 Other liabilities 413 413 413 Total liabilities $ 57,177 $ 57,851 $ 55,646 $ 2,205 The aggregate fair values in Table 66 represent only a portion of the total market value of our assets and liabilities as, in accordance with the guidance related to fair values about financial instruments, we exclude the following: • financial instruments recorded at fair value on a recurring basis (as they are disclosed in Table 60); • investments accounted for under the equity method, • equity securities without a readily determinable fair value that apply for the alternative measurement approach to fair value under ASU 2016-01, • real and personal property, • lease financing, • loan customer relationships, • deposit customer intangibles, • mortgage servicing rights (MSRs), • retail branch networks, • fee-based businesses, such as asset management and brokerage, • trademarks and brand names, • trade receivables and payables due in one year or less, and • deposit liabilities with no defined or contractual maturities under ASU 2016-01, and • insurance contracts.

Financial Derivatives

Financial Derivatives	3 Months Ended
	Mar. 31, 2021
Derivative Instruments and Hedging Activities Disclosure [Abstract]
Financial Derivatives	F INANCIAL D ERIVATIVES We use a variety of financial derivatives to both mitigate exposure to market (primarily interest rate) and credit risks inherent in our business activities, as well as to facilitate customer risk management activities. We manage these risks as part of our overall asset and liability management process and through our credit policies and procedures. Derivatives represent contracts between parties that usually require little or no initial net investment and result in one party delivering cash or another type of asset to the other party based on a notional amount and an underlying as specified in the contract. Derivative transactions are often measured in terms of notional amount, but this amount is generally not exchanged and it is not recorded on the balance sheet. The notional amount is the basis to which the underlying is applied to determine required payments under the derivative contract. The underlying is a referenced interest rate, security price, credit spread or other index. Residential and commercial real estate loan commitments associated with loans to be sold also qualify as derivative instruments. For more information regarding derivatives see Note 1 Accounting Policies and Note 16 Financial Derivatives in the Notes to Consolidated Financial Statements included in Item 8 of our 2020 Form 10-K. The following table presents the notional amounts and gross fair values of all derivative assets and liabilities held by us: Table 67: Total Gross Derivatives (a) March 31, 2021 December 31, 2020 In millions Notional / Asset Fair Liability Fair Notional / Asset Fair Liability Fair Derivatives used for hedging Interest rate contracts (d): Fair value hedges $ 22,802 $ 24,153 Cash flow hedges 35,017 $ 14 $ 99 22,875 $ 14 Foreign exchange contracts: Net investment hedges 1,081 30 1,075 $ 22 Total derivatives designated for hedging $ 58,900 $ 14 $ 129 $ 48,103 $ 14 $ 22 Derivatives not used for hedging Derivatives used for mortgage banking activities (e): Interest rate contracts: Swaps $ 26,974 $ 50,511 Futures (f) 2,883 2,841 Mortgage-backed commitments 14,979 $ 144 $ 82 11,288 $ 147 $ 77 Other 4,307 58 16 1,831 11 2 Total interest rate contracts 49,143 202 98 66,471 158 79 Derivatives used for customer-related activities: Interest rate contracts: Swaps 278,447 3,614 1,578 280,125 5,475 1,601 Futures (f) 965 1,235 Mortgage-backed commitments 7,324 36 30 4,178 11 14 Other 22,475 157 123 20,125 193 88 Total interest rate contracts 309,211 3,807 1,731 305,663 5,679 1,703 Commodity contracts: Swaps 7,032 558 533 6,149 350 323 Other 3,247 120 120 2,770 61 61 Total commodity contracts 10,279 678 653 8,919 411 384 Foreign exchange contracts and other 26,183 186 172 26,620 267 243 Total derivatives for customer-related activities 345,673 4,671 2,556 341,202 6,357 2,330 Derivatives used for other risk management activities: Foreign exchange contracts and other 10,836 29 240 10,931 4 325 Total derivatives not designated for hedging $ 405,652 $ 4,902 $ 2,894 $ 418,604 $ 6,519 $ 2,734 Total gross derivatives $ 464,552 $ 4,916 $ 3,023 $ 466,707 $ 6,533 $ 2,756 Less: Impact of legally enforceable master netting agreements 904 904 720 720 Less: Cash collateral received/paid 716 1,295 1,434 1,452 Total derivatives $ 3,296 $ 824 $ 4,379 $ 584 (a) Centrally cleared derivatives are settled in cash daily and result in no derivative asset or derivative liability being recognized on our Consolidated Balance Sheet . (b) Included in Other assets on our Consolidated Balance Sheet. (c) Included in Other liabilities on our Consolidated Balance Sheet. (d) Represents primarily swaps. (e) Includes both residential and commercial mortgage banking activities. (f) Futures contracts are settled in cash daily and result in no derivative asset or derivative liability being recognized on our Consolidated Balance Sheet. All derivatives are carried on our Consolidated Balance Sheet at fair value. Derivative balances are presented on the Consolidated Balance Sheet on a net basis taking into consideration the effects of legally enforceable master netting agreements and, when appropriate, any related cash collateral exchanged with counterparties. Further discussion regarding the offsetting rights associated with these legally enforceable master netting agreements is included in the Offsetting, Counterparty Credit Risk and Contingent Features section of this Note 12. Any nonperformance risk, including credit risk, is included in the determination of the estimated net fair value of the derivatives. Derivatives Designated As Hedging Instruments Certain derivatives used to manage interest rate and foreign exchange risk as part of our asset and liability risk management activities are designated as accounting hedges. Derivatives hedging the risks associated with changes in the fair value of assets or liabilities are considered fair value hedges, derivatives hedging the variability of expected future cash flows are considered cash flow hedges, and derivatives hedging a net investment in a foreign subsidiary are considered net investment hedges. Designating derivatives as accounting hedges allows for gains and losses on those derivatives to be recognized in the same period and in the same income statement line item as the earnings impact of the hedged items. Fair Value Hedges We enter into receive-fixed, pay-variable interest rate swaps to hedge changes in the fair value of outstanding fixed-rate debt caused by fluctuations in market interest rates. We also enter into pay-fixed, receive-variable interest rate swaps and zero-coupon swaps to hedge changes in the fair value of fixed rate and zero-coupon investment securities caused by fluctuations in market interest rates. Gains and losses on the interest rate swaps designated in these hedge relationships, along with the offsetting gains and losses on the hedged items attributable to the hedged risk, are recognized in current earnings within the same income statement line item. Cash Flow Hedges We enter into receive-fixed, pay-variable interest rate swaps and interest rate caps and floors to modify the interest rate characteristics of designated commercial loans from variable to fixed in order to reduce the impact of changes in future cash flows due to market interest rate changes. We also periodically enter into forward purchase and sale contracts to hedge the variability of the consideration that will be paid or received related to the purchase or sale of investment securities. The forecasted purchase or sale is consummated upon gross settlement of the forward contract itself. For these cash flow hedges, gains and losses on the hedging instruments are recorded in AOCI and are then reclassified into earnings in the same period the hedged cash flows affect earnings and within the same income statement line as the hedged cash flows. In the 12 months that follow March 31, 2021, we expect to reclassify an insignificant amount of net derivative gains from AOCI to interest income for these cash flow hedge strategies. This reclassified amount could differ from amounts actually recognized due to changes in interest rates, hedge de-designations, and the addition of other hedges subsequent to March 31, 2021. As of March 31, 2021, the maximum length of time over which forecasted transactions are hedged is ten years. Further detail regarding gains (losses) related to our fair value and cash flow hedge derivatives is presented in the following table: Table 68: Gains (Losses) Recognized on Fair Value and Cash Flow Hedges in the Consolidated Income Statement (a) (b) Location and Amount of Gains (Losses) Recognized in Income Interest Income Interest Expense Noninterest Income In millions Loans Investment Securities Borrowed Funds Other For the three months ended March 31, 2021 Total amounts on the Consolidated Income Statement $ 1,996 $ 421 $ 95 $ 483 Gains (losses) on fair value hedges recognized on: Hedged items (c) $ (8) $ 646 Derivatives $ 9 $ (664) Amounts related to interest settlements on derivatives $ (1) $ 134 Gains (losses) on cash flow hedges (d): Amount of derivative gains (losses) reclassified from AOCI $ 100 $ 22 $ 13 For the three months ended March 31, 2020 Total amounts on the Consolidated Income Statement $ 2,480 $ 582 $ 314 $ 343 Gains (losses) on fair value hedges recognized on: Hedged items (c) $ 234 $ (1,361) Derivatives $ (231) $ 1,339 Amounts related to interest settlements on derivatives $ (2) $ 59 Gains (losses) on cash flow hedges (d): Amount of derivative gains (losses) reclassified from AOCI $ 42 $ 2 $ 1 (a) For all periods presented, there were no components of derivative gains or losses excluded from the assessment of hedge effectiveness for any of the fair value or cash flow hedge strategies. (b) All cash flow and fair value hedge derivatives were interest rate contracts for the periods presented. (c) Includes an insignificant amount of fair value hedge adjustments related to discontinued hedge relationships. Detail regarding the impact of fair value hedge accounting on the carrying value of the hedged items is presented in the following table: Table 69: Hedged Items - Fair Value Hedges March 31, 2021 December 31, 2020 In millions Carrying Value of the Hedged Items Cumulative Fair Value Hedge Adjustment included in the Carrying Value of Hedged Items (a) Carrying Value of the Hedged Items Cumulative Fair Value Hedge Adjustment included in the Carrying Value of Hedged Items (a) Investment securities - available for sale (b) $ 2,778 $ 22 $ 2,785 $ 30 Borrowed funds $ 23,936 $ 966 $ 25,797 $ 1,611 (a) Includes $(0.1) billion of fair value hedge adjustments primarily related to discontinued borrowed funds hedge relationships at both March 31, 2021 and December 31, 2020, respectively. (b) Carrying value shown represents amortized cost. Net Investment Hedges We enter into foreign currency forward contracts to hedge non-U.S. dollar net investments in foreign subsidiaries against adverse changes in foreign exchange rates. We assess whether the hedging relationship is highly effective in achieving offsetting changes in the value of the hedge and hedged item by qualitatively verifying that the critical terms of the hedge and hedged item match at the inception of the hedging relationship and on an ongoing basis. Net investment hedge derivatives are classified as foreign exchange contracts. There were no components of derivative gains or losses excluded from the assessment of the hedge effectiveness for all periods presented. Net gains (losses) on net investment hedge derivatives recognized in OCI were $(8) million and $75 million for the three months ended March 31, 2021 and 2020, respectively. Derivatives Not Designated As Hedging Instruments For additional information on derivatives not designated as hedging instruments under GAAP, see Note 16 Financial Derivatives in the Notes to Consolidated Financial Statements included in Item 8 of our 2020 Form 10-K. Further detail regarding the gains (losses) on derivatives not designated in hedging relationships is presented in the following table: Table 70: Gains (Losses) on Derivatives Not Designated for Hedging Three months ended In millions 2021 2020 Derivatives used for mortgage banking activities: Interest rate contracts (a) $ (322) $ 654 Derivatives used for customer-related activities: Interest rate contracts 82 2 Foreign exchange contracts and other 22 11 Gains (losses) from customer-related activities (b) 104 13 Derivatives used for other risk management activities: Foreign exchange contracts and other (b) 48 207 Total gains (losses) from derivatives not designated as hedging instruments $ (170) $ 874 (a) Included in Residential mortgage, Corporate services and Other noninterest income on our Consolidated Income Statement. (b) Included in Other noninterest income on our Consolidated Income Statement. Offsetting, Counterparty Credit Risk and Contingent Features We generally utilize a net presentation on the Consolidated Balance Sheet for those derivative financial instruments entered into with counterparties under legally enforceable master netting agreements. The master netting agreements reduce credit risk by permitting the closeout netting of all outstanding derivative instruments under the master netting agreement with the same counterparty upon the occurrence of an event of default. The master netting agreement also may require the exchange of cash or marketable securities to collateralize either party’s net position. For additional information on derivative offsetting, counterparty credit risk and contingent features, see Note 16 Financial Derivatives in the Notes to Consolidated Financial Statements included in Item 8 of our 2020 Form 10-K. Table 71 shows the impact legally enforceable master netting agreements had on our derivative assets and derivative liabilities as of March 31, 2021 and December 31, 2020. The table includes cash collateral held or pledged under legally enforceable master netting Table 71: Derivative Assets and Liabilities Offsetting In millions Amounts Offset on the Securities Collateral Held/Pledged Under Master Netting Agreements Gross Fair Value Cash Net Net Amounts March 31, 2021 Derivative assets Interest rate contracts: Over-the-counter cleared $ 101 $ 101 $ 101 Over-the-counter 3,922 $ 620 $ 700 2,602 $ 263 2,339 Commodity contracts 678 190 8 480 480 Foreign exchange and other contracts 215 94 8 113 1 112 Total derivative assets $ 4,916 $ 904 $ 716 $ 3,296 (a) $ 264 $ 3,032 Derivative liabilities Interest rate contracts: Over-the-counter cleared $ 158 $ 158 $ 158 Over-the-counter 1,770 $ 653 $ 792 325 325 Commodity contracts 653 184 407 62 62 Foreign exchange and other contracts 442 67 96 279 279 Total derivative liabilities $ 3,023 $ 904 $ 1,295 $ 824 (b) $ 824 December 31, 2020 Derivative assets Interest rate contracts: Over-the-counter cleared $ 48 $ 48 $ 48 Over-the-counter 5,803 $ 430 $ 1,426 3,947 $ 531 3,416 Commodity contracts 411 209 4 198 198 Foreign exchange and other contracts 271 81 4 186 1 185 Total derivative assets $ 6,533 $ 720 $ 1,434 $ 4,379 (a) $ 532 $ 3,847 Derivative liabilities Interest rate contracts: Over-the-counter cleared $ 42 $ 42 $ 42 Over-the-counter 1,740 $ 462 $ 1,179 99 99 Commodity contracts 384 182 103 99 99 Foreign exchange and other contracts 590 76 170 344 344 Total derivative liabilities $ 2,756 $ 720 $ 1,452 $ 584 (b) $ 584 (a) Represents the net amount of derivative assets included in Other assets on our Consolidated Balance Sheet. (b) Represents the net amount of derivative liabilities included in Other liabilities on our Consolidated Balance Sheet. In addition to using master netting agreements and other collateral agreements to reduce credit risk associated with derivative instruments, we also seek to manage credit risk by evaluating credit ratings of counterparties and by using internal credit analysis, limits and monitoring procedures. At March 31, 2021, we held cash, U.S. government securities and mortgage-backed securities totaling $1.5 billion under master netting agreements and other collateral agreements to collateralize net derivative assets due from counterparties, and we pledged cash totaling $2.0 billion under these agreements to collateralize net derivative liabilities owed to counterparties and to meet initial margin requirements. These totals may differ from the amounts presented in the preceding offsetting table because these totals may include collateral exchanged under an agreement that does not qualify as a master netting agreement or because the total amount of collateral held or pledged exceeds the net derivative fair values with the counterparty as of the balance sheet date due to timing or other factors, such as initial margin. To the extent not netted against the derivative fair values under a master netting agreement, the receivable for cash pledged is included in Other assets and the obligation for cash held is included in Other liabilities on our Consolidated Balance Sheet. Securities held from counterparties are not recognized on our balance sheet. Likewise securities we have pledged to counterparties remain on our balance sheet. Certain derivative agreements contain various credit-risk related contingent provisions, such as those that require our debt to maintain a specified credit rating from one or more of the major credit rating agencies. If our debt ratings were to fall below such specified ratings, the counterparties to the derivative instruments could request immediate payment or demand immediate and ongoing full collateralization on derivative instruments in net liability positions. The aggregate fair value of all derivative instruments with credit-risk-related contingent features that were in a net liability position on March 31, 2021 was $1.8 billion for which we had posted collateral of $1.3 billion in the normal course of business. The maximum additional amount of collateral we would have been required to post if the credit-risk-related contingent features underlying these agreements had been triggered on March 31, 2021 would be $0.5 billion.

Legal Proceedings

Legal Proceedings	3 Months Ended
	Mar. 31, 2021
Legal Proceedings [Abstract]
Legal Proceedings	L EGAL P ROCEEDINGS We establish accruals for legal proceedings, including litigation and regulatory and governmental investigations and inquiries, when information related to the loss contingencies represented by those matters indicates both that a loss is probable and that the amount of loss can be reasonably estimated. Any such accruals are adjusted thereafter as appropriate to reflect changed circumstances. When we are able to do so, we also determine estimates of possible losses or ranges of possible losses, whether in excess of any related accrued liability or where there is no accrued liability, for disclosed legal proceedings (“Disclosed Matters,” which are those matters disclosed in this Note 13 as well as those matters disclosed in Note 21 Legal Proceedings in Part II, Item 8 of our 2020 Form 10-K (such prior disclosure referred to as “Prior Disclosure”)). For Disclosed Matters where we are able to estimate such possible losses or ranges of possible losses, as of March 31, 2021, we estimate that it is reasonably possible that we could incur losses in excess of related accrued liabilities, if any, in an aggregate amount less than $100 million. The estimates included in this amount are based on our analysis of currently available information and are subject to significant judgment and a variety of assumptions and uncertainties. As new information is obtained we may change our estimates. Due to the inherent subjectivity of the assessments and unpredictability of outcomes of legal proceedings, any amounts accrued or included in this aggregate amount may not represent the ultimate loss to us from the legal proceedings in question. Thus, our exposure and ultimate losses may be higher, and possibly significantly so, than the amounts accrued or this aggregate amount. As a result of the types of factors described in Note 21 Legal Proceedings in Part II, Item 8 of our 2020 Form 10-K, we are unable, at this time, to estimate the losses that are reasonably possible to be incurred or ranges of such losses with respect to some of the matters disclosed, and the aggregate estimated amount provided above does not include an estimate for every Disclosed Matter. Therefore, as the estimated aggregate amount disclosed above does not include all of the Disclosed Matters, the amount disclosed above does not represent our maximum reasonably possible loss exposure for all of the Disclosed Matters. The estimated aggregate amount also does not reflect any of our exposure to matters not so disclosed, as discussed below under “Other.” We include in some of the descriptions of individual Disclosed Matters certain quantitative information related to the plaintiff’s claim against us as alleged in the plaintiff’s pleadings or other public filings or otherwise publicly available information. While information of this type may provide insight into the potential magnitude of a matter, it does not necessarily represent our estimate of reasonably possible loss or our judgment as to any currently appropriate accrual. Some of our exposure in Disclosed Matters may be offset by applicable insurance coverage. We do not consider the possible availability of insurance coverage in determining the amounts of any accruals (although we record the amount of related insurance recoveries that are deemed probable up to the amount of the accrual) or in determining any estimates of possible losses or ranges of possible losses. USAA Patent Infringement Litigation In January 2021, USAA filed a motion to dismiss or transfer PNC Bank’s declaratory judgment complaint in PNC Bank, N.A. v. United Services Automobile Association (Case No. 2:20-cv-1886), pending in the United States District Court for the Western District of Pennsylvania. In February 2021, in United Services Automobile Association v. PNC Bank N.A. (Case No. 2:20-cv-319), pending in the United States District Court for the Eastern District of Texas, we answered the amended complaint and asserted counterclaims alleging that the plaintiff infringed four patents owned by PNC Bank, as well as for a declaratory judgment that PNC Bank does not infringe certain patents asserted by the plaintiff. In March 2021, the plaintiff filed a motion to dismiss two of the patent infringement counterclaims, as well as to sever the patent infringement counterclaims for trial. In March 2021, USAA filed another lawsuit ( United Services Automobile Association v. PNC Bank N.A. (Case No. 2:21-cv-110)) in the United States District Court for the Eastern District of Texas against PNC Bank for patent infringement. The complaint alleges that PNC’s mobile remote deposit capture systems infringe two patents owned by the plaintiff. The plaintiff seeks, among other things, a judgment that PNC is infringing each of the patents, damages for willful infringement, and attorneys’ fees. On April 19, 2021, we moved to consolidate this action with the other action brought by USAA pending in the same district. On April 22, 2021, we filed motions to dismiss and transfer this action. Other Regulatory and Governmental Inquiries We are the subject of investigations, audits, examinations and other forms of regulatory and governmental inquiry covering a broad range of issues in our consumer, mortgage, brokerage, securities and other financial services businesses, as well as other aspects of our operations. In some cases, these inquiries are part of reviews of specified activities at multiple industry participants; in others, they are directed at PNC individually. From time to time, these inquiries have involved and may in the future involve or lead to regulatory enforcement actions and other administrative proceedings. These inquiries have also led to and may in the future lead to civil or criminal judicial proceedings. Some of these inquiries result in remedies including fines, penalties, restitution, or alterations in our business practices, and in additional expenses and collateral costs and other consequences. Such remedies and other consequences typically have not been material to us from a financial standpoint, but could be in the future. Even if not financially material, they may result in significant reputational harm or other adverse consequences. Our practice is to cooperate fully with regulatory and governmental investigations, audits and other inquiries, including those described in Prior Disclosure. Other In addition to the proceedings or other matters described in Prior Disclosure, PNC and persons to whom we may have indemnification obligations, in the normal course of business, are subject to various other pending and threatened legal proceedings in which claims for monetary damages and other relief are asserted. We do not anticipate, at the present time, that the ultimate aggregate liability, if any, arising out of such other legal proceedings will have a material adverse effect on our financial position. However, we cannot now determine whether or not any claims asserted against us or others to whom we may have indemnification obligations, whether in the proceedings or other matters described above or otherwise, will have a material adverse effect on our results of operations in any future reporting period, which will depend on, among other things, the amount of the loss resulting from the claim and the amount of income otherwise reported for the reporting period.

Segment Reporting

Segment Reporting	3 Months Ended
	Mar. 31, 2021
Segment Reporting [Abstract]
Segment Reporting	S EGMENT R EPORTING We have three reportable business segments: • Retail Banking • Corporate & Institutional Banking • Asset Management Group Results of individual businesses are presented based on our internal management reporting practices. There is no comprehensive, authoritative body of guidance for management accounting equivalent to GAAP; therefore, the financial results of our individual businesses are not necessarily comparable with similar information for any other company. We periodically refine our internal methodologies as management reporting practices are enhanced. To the extent significant and practicable, retrospective application of new methodologies is made to prior period reportable business segment results and disclosures to create comparability with the current period. During the second quarter of 2020, we divested our entire 22.4% investment in BlackRock, which had previously been reported as a separate business segment. See Note 2 Acquisition and Divestiture Activity for additional information. Total business segment financial results differ from total consolidated net income. These differences are reflected in the “Other” category in the Table 72. “Other” includes residual activities that do not meet the criteria for disclosure as a separate reportable business, such as asset and liability management activities including net securities gains or losses, ACL for investment securities, certain trading activities, certain runoff consumer loan portfolios, private equity investments, intercompany eliminations, certain corporate overhead, tax adjustments that are not allocated to business segments, exited businesses and differences between business segment performance reporting and financial statement reporting (GAAP). The “Other” category also included our BlackRock held for sale asset for the three months ended March 31, 2020. Assets, revenue and earnings attributable to foreign activities were not material in the periods presented for comparison. Financial results are presented, to the extent practicable, as if each business operated on a stand-alone basis. Additionally, we have aggregated the results for corporate support functions within “Other” for financial reporting purposes. Net interest income in business segment results reflects our internal funds transfer pricing methodology. Assets receive a funding charge and liabilities and capital receive a funding credit based on a transfer pricing methodology that incorporates product repricing characteristics, tenor and other factors. We have allocated the ALLL and the allowance for unfunded lending related commitments based on the loan exposures within each business segment’s portfolio. Key reserve assumptions and estimation processes react to and are influenced by observed changes in loan portfolio performance experience, the financial strength of the borrower and economic conditions. Key reserve assumptions are periodically updated. Business Segment Results Table 72: Results of Businesses Three months ended March 31 Retail Banking Corporate & Asset Other Consolidated (a) 2021 Income Statement Net interest income $ 1,362 $ 991 $ 93 $ (98) $ 2,348 Noninterest income 654 807 229 182 1,872 Total revenue 2,016 1,798 322 84 4,220 Provision for (recapture of) credit losses (257) (282) (9) (3) (551) Depreciation and amortization 63 47 4 120 234 Other noninterest expense 1,413 664 198 65 2,340 Income (loss) from continuing operations before income taxes (benefit) and 797 1,369 129 (98) 2,197 Income taxes (benefit) from continuing operations 183 308 30 (150) 371 Net income from continuing operations 614 1,061 99 52 1,826 Less: Net income attributable to noncontrolling interests 7 3 10 Net income from continuing operations excluding noncontrolling interests $ 607 $ 1,058 $ 99 $ 52 $ 1,816 Average Assets $ 92,891 $ 170,531 $ 8,873 $ 195,925 $ 468,220 2020 Income Statement Net interest income $ 1,456 $ 950 $ 88 $ 17 $ 2,511 Noninterest income 788 694 204 139 1,825 Total revenue 2,244 1,644 292 156 4,336 Provision for credit losses 445 458 3 8 914 Depreciation and amortization 57 48 11 124 240 Other noninterest expense 1,471 674 208 (50) 2,303 Income from continuing operations before income taxes (benefit) and 271 464 70 74 879 Income taxes (benefit) from continuing operations 62 94 16 (52) 120 Net income from continuing operations 209 370 54 126 759 Less: Net income attributable to noncontrolling interests 8 (1) 7 Net income from continuing operations excluding noncontrolling interests $ 201 $ 370 $ 54 $ 127 $ 752 Average Assets $ 97,062 $ 172,502 $ 7,801 $ 135,071 $ 412,436 (a) There were no material intersegment revenues for the three months ended March 31, 2021 and 2020. Business Segment Products and Services Retail Banking provides deposit, lending, brokerage, insurance services, investment management and cash management products and services to consumer and small business customers. Our customers are serviced through our branch network, ATMs, call centers, online banking and mobile channels. The branch network is located primarily in markets across the Mid-Atlantic, Midwest and Southeast. Our national expansion strategy is designed to grow customers with digitally-led banking and a thin branch network in markets outside of our existing retail branch network. Deposit products include checking, savings and money market accounts and certificates of deposit. Lending products include residential mortgages, home equity loans and lines of credit, auto loans, credit cards, education loans and personal and small business loans and lines of credit. The residential mortgage loans are directly originated within our branch network and nationwide, and are typically underwritten to agency and/or third-party standards, and either sold, servicing retained, or held on our balance sheet. Brokerage, investment management and cash management products and services include managed, education, retirement and trust accounts. Corporate & Institutional Banking provides lending, treasury management and capital markets-related products and services to mid-sized and large corporations, and government and not-for-profit entities. Lending products include secured and unsecured loans, letters of credit and equipment leases. The Treasury Management business provides payables, receivables, deposit and account services, liquidity and investments, and online and mobile banking products and services to our clients. Capital markets-related products and services include foreign exchange, derivatives, fixed income, securities underwriting, loan syndications, mergers and acquisitions advisory and equity capital markets advisory related services. We also provide commercial loan servicing and technology solutions for the commercial real estate finance industry. Products and services are provided nationally. Asset Management Group provides personal wealth management for high net worth and ultra high net worth clients and institutional asset management. The Asset Management group is composed of two distinct operating units: • Personal Wealth Management, inclusive of Hawthorn, provides products and services to individuals and their families including investment and retirement planning, customized investment management, private banking, and trust management and administration for individuals and their families. The business also provides multi-generational family planning including estate, financial, tax planning, fiduciary, investment management and consulting, private banking, personal administrative services, asset custody and customized performance reporting to ultra high net worth clients. • Institutional asset management provides outsourced chief investment officer, custody, private real estate, cash and fixed income client solutions, and fiduciary retirement advisory services to institutional clients including corporations, healthcare systems, insurance companies, unions, municipalities and non-profits.

Fee-Based Revenue from Contract

Fee-Based Revenue from Contracts with Customers	3 Months Ended
	Mar. 31, 2021
Revenue from Contract with Customer [Abstract]
Fee-Based Revenue from Contracts with Customers	F EE - BASED R EVENUE FROM C ONTRACTS WITH C USTOMERS As more fully described in Note 24 Fee-based Revenue from Contracts with Customers in our 2020 Form 10-K, a subset of our noninterest income relates to certain fee-based revenue within the scope of ASC Topic 606 - Revenue from Contracts with Customers (Topic 606). Fee-based revenue within the scope of Topic 606 is recognized within our three reportable business segments: Retail Banking, Corporate & Institutional Banking and Asset Management Group. Interest income, income from lease contracts, fair value gains from financial instruments (including derivatives), income from mortgage servicing rights and guarantee products, letter of credit fees, non-refundable fees associated with acquiring or originating a loan and gains from the sale of financial assets are outside of the scope of Topic 606. The following tables present noninterest income within the scope of Topic 606 disaggregated by segment. A description of the fee-based revenue and how it is recognized for each segment’s principal services and products is included in our 2020 Form 10-K. Retail Banking Table 73: Retail Banking Noninterest Income Disaggregation Three months ended In millions 2021 2020 Product Debit card fees $ 138 $ 129 Deposit account fees 108 158 Brokerage fees 102 93 Net credit card fees (a) 47 41 Merchant services 32 49 Other 57 56 Total in-scope noninterest income by product $ 484 $ 526 Reconciliation to total Retail Banking noninterest income Total in-scope noninterest income $ 484 $ 526 Total out-of-scope noninterest income (b) 170 262 Total Retail Banking noninterest income $ 654 $ 788 (a) Net credit card fees consists of interchange fees of $120 million and $118 million and credit card reward costs of $73 million and $77 million for the three months ended March 31, 2021 and 2020, respectively. (b) Out-of-scope noninterest income includes revenue streams that fall under the scope of other accounting and disclosure requirements outside of Topic 606. Corporate & Institutional Banking Table 74: Corporate & Institutional Banking Noninterest Income Disaggregation Three months ended In millions 2021 2020 Product Treasury management fees $ 235 $ 216 Capital markets fees 192 175 Commercial mortgage banking activities 31 26 Other 29 20 Total in-scope noninterest income by product $ 487 $ 437 Reconciliation to total Corporate & Institutional Banking noninterest income Total in-scope noninterest income $ 487 $ 437 Total out-of-scope noninterest income (a) 320 257 Total Corporate & Institutional Banking noninterest income $ 807 $ 694 (a) Out-of-scope noninterest income includes revenue streams that fall under the scope of other accounting and disclosure requirements outside of Topic 606. Asset Management Group Table 75: Asset Management Group Noninterest Income Disaggregation Three months ended In millions 2021 2020 Customer Type Personal $ 173 $ 150 Institutional 53 51 Total in-scope noninterest income by customer type $ 226 $ 201 Reconciliation to Asset Management Group noninterest income Total in-scope noninterest income $ 226 $ 201 Total out-of-scope noninterest income (a) 3 3 Total Asset Management Group noninterest income $ 229 $ 204 (a) Out-of-scope noninterest income includes revenue streams that fall under the scope of other accounting and disclosure requirements outside of Topic 606.

Subsequent Events

Subsequent Events	3 Months Ended
	Mar. 31, 2021
Subsequent Events [Abstract]
Subsequent Events	S UBSEQUENT E VENTS

Accounting Policies (Policies)

Accounting Policies (Policies)	3 Months Ended
	Mar. 31, 2021
Accounting Policies [Abstract]
Basis of Financial Statement Presentation	B USINESS PNC is one of the largest diversified financial services companies in the U.S. and is headquartered in Pittsburgh, Pennsylvania. Basis of Financial Statement Presentation Our consolidated financial statements include the accounts of the parent company and its subsidiaries, most of which are wholly-owned, certain partnership interests and VIEs. We prepared these consolidated financial statements in accordance with GAAP. We have eliminated intercompany accounts and transactions. We have also reclassified certain prior year amounts to conform to the current period presentation, which did not have a material impact on our consolidated financial condition or results of operations. In our opinion, the unaudited interim consolidated financial statements reflect all normal, recurring adjustments needed to present fairly our results for the interim periods. The results of operations for interim periods are not necessarily indicative of the results that may be expected for the full year or any other interim period. We have also considered the impact of subsequent events on these consolidated financial statements.
Use of Estimates	Use of Estimates We prepared these consolidated financial statements using financial information available at the time of preparation, which requires us to make estimates and assumptions that affect the amounts reported. Our most significant estimates pertain to the ACL and our fair value measurements. Actual results may differ from the estimates and the differences may be material to the consolidated financial statements.
Recently Adopted Accounting Standards	Recently Adopted Accounting Standards Accounting Standards Update Description Financial Statement Impact Income Tax Simplification - ASU 2019-12 Issued December 2019 • Simplifies the accounting for income taxes by eliminating certain exceptions in ASC 740, Income Taxes , relating to the approach for intraperiod tax allocation, the recognition of deferred tax liabilities for outside basis differences and the methodology for calculating income taxes in an interim period. • Clarifies areas of the income tax guidance around franchise taxes partially based on income, step-ups in the tax basis of goodwill, and enacted changes in tax laws. • Specifies that an entity is no longer required to allocate the consolidated amount of current and deferred tax expense to a legal entity that is not subject to tax in its separate financial statements. • Adopted January 1, 2021. • The adoption of this standard did not impact our consolidated results of operations or our consolidated financial position. PNC will no longer allocate the consolidated amount of current and deferred income tax expense to certain qualifying stand-alone entities, which may impact the presentation of parent company tax expense subsequent to adoption. Accounting Standards Update Description Financial Statement Impact Reference Rate Reform - ASU 2020-04 Issued March 2020 Reference Rate Reform Scope - ASU 2021-01 Issued January 2021 • Provides optional expedients and exceptions for applying generally accepted accounting principles to contracts, hedging relationships and other transactions that reference LIBOR or another reference rate expected to be discontinued because of reference rate reform (codified in ASC 848). • Includes optional expedients related to contract modifications that allow an entity to account for modifications (if certain criteria are met) as if the modifications were only minor (assets within the scope of ASC 310, Receivables ), were not substantial (assets within the scope of ASC 470, Debt ) and/or did not result in remeasurements or reclassifications (assets within the scope of ASC 842, Leases , and other Topics) of the existing contract. • Includes optional expedients related to hedging relationships within the scope of ASC 815, Derivatives & Hedging , whereby changes to the critical terms of a hedging relationship do not require dedesignation if certain criteria are met. In addition, potential sources of ineffectiveness as a result of reference rate reform may be disregarded when performing some effectiveness assessments. • Includes optional expedients and exceptions for contract modifications and hedge accounting that apply to derivative instruments impacted by the market-wide discounting transition. • Allows for a one-time election to sell, transfer, or both sell and transfer debt securities classified as held to maturity that reference a rate affected by reference rate reform and that are classified as held to maturity before January 1, 2020. • Guidance in these ASUs are effective as of March 12, 2020 through December 31, 2022. • ASU 2020-04 was adopted March 12, 2020. ASU 2021-01 was retrospectively adopted October 1, 2020. • Refer to Note 1 Accounting Policies in the 2020 Form 10-K for more information on elections of optional expedients that occurred in 2020. • During the first quarter of 2021, we elected to apply certain optional expedients to derivative instruments that were modified in the first quarter due to the adoption of fallback language recommended by the ISDA to address the anticipated cessation of LIBOR. These optional expedients remove the requirement to remeasure contract modifications or dedesignate hedging relationships due to reference rate reform. • As of March 31, 2021, we have not yet elected to apply any optional expedients for contract modifications and hedging relationships to any other financial instruments. However, we plan to elect these optional expedients in the future. Accounting Standards Update Description Financial Statement Impact SEC Paragraph Amendments – ASU 2020-09 Issued October 2020 • Amends the financial disclosure requirements for guarantors and issuers of guaranteed securities registered or being registered, and issuers’ affiliates whose securities collateralize securities registered or being registered in Regulation S-X. • Improves disclosure requirements for both investors and registrants. • Provides investors with material information given the specific facts and circumstances, making the disclosures easier to understand and reducing the costs and burdens to registrants. • Adopted January 4, 2021. • In accordance with the requirements of this ASU, we included Exhibit 22 in the Exhibit Index of Item 6 of this Report to disclose PNC’s guarantee of the PNC Capital Trust C preferred securities.

Accounting Policies (Tables)

Accounting Policies (Tables)	3 Months Ended
	Mar. 31, 2021
Accounting Policies [Abstract]
Recently Adopted Accounting Standards	Recently Adopted Accounting Standards Accounting Standards Update Description Financial Statement Impact Income Tax Simplification - ASU 2019-12 Issued December 2019 • Simplifies the accounting for income taxes by eliminating certain exceptions in ASC 740, Income Taxes , relating to the approach for intraperiod tax allocation, the recognition of deferred tax liabilities for outside basis differences and the methodology for calculating income taxes in an interim period. • Clarifies areas of the income tax guidance around franchise taxes partially based on income, step-ups in the tax basis of goodwill, and enacted changes in tax laws. • Specifies that an entity is no longer required to allocate the consolidated amount of current and deferred tax expense to a legal entity that is not subject to tax in its separate financial statements. • Adopted January 1, 2021. • The adoption of this standard did not impact our consolidated results of operations or our consolidated financial position. PNC will no longer allocate the consolidated amount of current and deferred income tax expense to certain qualifying stand-alone entities, which may impact the presentation of parent company tax expense subsequent to adoption. Accounting Standards Update Description Financial Statement Impact Reference Rate Reform - ASU 2020-04 Issued March 2020 Reference Rate Reform Scope - ASU 2021-01 Issued January 2021 • Provides optional expedients and exceptions for applying generally accepted accounting principles to contracts, hedging relationships and other transactions that reference LIBOR or another reference rate expected to be discontinued because of reference rate reform (codified in ASC 848). • Includes optional expedients related to contract modifications that allow an entity to account for modifications (if certain criteria are met) as if the modifications were only minor (assets within the scope of ASC 310, Receivables ), were not substantial (assets within the scope of ASC 470, Debt ) and/or did not result in remeasurements or reclassifications (assets within the scope of ASC 842, Leases , and other Topics) of the existing contract. • Includes optional expedients related to hedging relationships within the scope of ASC 815, Derivatives & Hedging , whereby changes to the critical terms of a hedging relationship do not require dedesignation if certain criteria are met. In addition, potential sources of ineffectiveness as a result of reference rate reform may be disregarded when performing some effectiveness assessments. • Includes optional expedients and exceptions for contract modifications and hedge accounting that apply to derivative instruments impacted by the market-wide discounting transition. • Allows for a one-time election to sell, transfer, or both sell and transfer debt securities classified as held to maturity that reference a rate affected by reference rate reform and that are classified as held to maturity before January 1, 2020. • Guidance in these ASUs are effective as of March 12, 2020 through December 31, 2022. • ASU 2020-04 was adopted March 12, 2020. ASU 2021-01 was retrospectively adopted October 1, 2020. • Refer to Note 1 Accounting Policies in the 2020 Form 10-K for more information on elections of optional expedients that occurred in 2020. • During the first quarter of 2021, we elected to apply certain optional expedients to derivative instruments that were modified in the first quarter due to the adoption of fallback language recommended by the ISDA to address the anticipated cessation of LIBOR. These optional expedients remove the requirement to remeasure contract modifications or dedesignate hedging relationships due to reference rate reform. • As of March 31, 2021, we have not yet elected to apply any optional expedients for contract modifications and hedging relationships to any other financial instruments. However, we plan to elect these optional expedients in the future. Accounting Standards Update Description Financial Statement Impact SEC Paragraph Amendments – ASU 2020-09 Issued October 2020 • Amends the financial disclosure requirements for guarantors and issuers of guaranteed securities registered or being registered, and issuers’ affiliates whose securities collateralize securities registered or being registered in Regulation S-X. • Improves disclosure requirements for both investors and registrants. • Provides investors with material information given the specific facts and circumstances, making the disclosures easier to understand and reducing the costs and burdens to registrants. • Adopted January 4, 2021. • In accordance with the requirements of this ASU, we included Exhibit 22 in the Exhibit Index of Item 6 of this Report to disclose PNC’s guarantee of the PNC Capital Trust C preferred securities.

Acquisition and Divestiture A_2

Acquisition and Divestiture Activity (Tables)	3 Months Ended
	Mar. 31, 2021
Business Combinations [Abstract]
Consolidated Income Statement - Discontinued Operations	The following table summarizes the results from the discontinued operations of BlackRock included in the Consolidated Income Statement: Table 34: Consolidated Income Statement - Discontinued Operations Three months ended March 31 In millions 2020 Noninterest income $ 181 Total revenue 181 Income from discontinued operations before income taxes and noncontrolling interests 181 Income taxes 25 Net income from discontinued operations $ 156

Investment Securities (Tables)

Investment Securities (Tables)	3 Months Ended
	Mar. 31, 2021
Investment Securities Disclosure [Abstract]
Investment Securities Summary	The following table summarizes our available for sale and held to maturity portfolios by major security type: Table 35: Investment Securities Summary March 31, 2021 (a) December 31, 2020 (a) In millions Amortized Unrealized Fair Amortized Unrealized Fair Gains Losses Gains Losses Securities Available for Sale U.S. Treasury and government agencies $ 25,670 $ 546 $ (266) $ 25,950 $ 19,821 $ 903 $ (13) $ 20,711 Residential mortgage-backed Agency 50,499 1,227 (172) 51,554 47,355 1,566 (10) 48,911 Non-agency 1,181 252 (9) 1,424 1,272 243 (14) 1,501 Commercial mortgage-backed Agency 2,219 68 (3) 2,284 2,571 119 (2) 2,688 Non-agency 4,191 60 (15) 4,236 3,678 78 (67) 3,689 Asset-backed 5,969 89 (17) 6,041 5,060 100 (10) 5,150 Other 5,077 238 (5) 5,310 4,415 293 4,708 Total securities available for sale (b) $ 94,806 $ 2,480 $ (487) $ 96,799 $ 84,172 $ 3,302 $ (116) $ 87,358 Securities Held to Maturity U.S. Treasury and government agencies $ 800 $ 74 $ 874 $ 795 $ 125 $ 920 Other 656 36 $ (7) 685 646 42 $ (3) 685 Total securities held to maturity (c) $ 1,456 $ 110 $ (7) $ 1,559 $ 1,441 $ 167 $ (3) $ 1,605 (a) The accrued interest associated with our available for sale portfolio totaled $244 million and $238 million at March 31, 2021 and December 31, 2020, respectively. These amounts are included in Other assets on the Consolidated Balance Sheet. (b) Amortized cost is presented net of allowance of $105 million and $79 million for securities available for sale at March 31, 2021 and December 31, 2020, respectively. (c) Credit ratings represent a primary credit quality indicator used to monitor and manage credit risk. 85% of our securities held to maturity were rated AAA/AA as of both March 31, 2021 and December 31, 2020.
Gross Unrealized Loss and Fair Value of Securities Available for Sale Without an Allowance for Credit Losses	Table 36: Gross Unrealized Loss and Fair Value of Securities Available for Sale Without an Allowance for Credit Losses Unrealized loss position Unrealized loss position Total In millions Unrealized Fair Unrealized Fair Unrealized Fair March 31, 2021 U.S. Treasury and government agencies $ (266) $ 12,798 $ (266) $ 12,798 Residential mortgage-backed Agency (170) 19,019 $ (2) $ 75 (172) 19,094 Non-agency (9) 165 (9) 165 Commercial mortgage-backed Agency (2) 190 (1) 69 (3) 259 Non-agency (1) 275 (5) 911 (6) 1,186 Asset-backed (12) 1,707 (5) 794 (17) 2,501 Other (4) 457 (4) 457 Total securities available for sale $ (455) $ 34,446 $ (22) $ 2,014 $ (477) $ 36,460 December 31, 2020 U.S. Treasury and government agencies $ (13) $ 603 $ (13) $ 603 Residential mortgage-backed Agency (8) 3,152 $ (2) $ 82 (10) 3,234 Non-agency (7) 119 (7) 73 (14) 192 Commercial mortgage-backed Agency (2) 149 (2) 149 Non-agency (13) 972 (7) 714 (20) 1,686 Asset-backed (1) 339 (9) 706 (10) 1,045 Total securities available for sale $ (42) $ 5,185 $ (27) $ 1,724 $ (69) $ 6,909
Gains (losses) on Sales Of Securities Available for Sale	Information relating to gross realized securities gains and losses from the sales of securities is set forth in the following table: Table 37: Gains (Losses) on Sales of Securities Available for Sale Three months ended March 31 Gross Gains Gross Losses Net Gains Tax Expense 2021 $ 159 $ (134) $ 25 $ 5 2020 $ 184 $ (2) $ 182 $ 38
Contractual Maturity of Securities	The following table presents, by remaining contractual maturity, the amortized cost, fair value and weighted-average yield of debt securities at March 31, 2021: Table 38: Contractual Maturity of Debt Securities March 31, 2021 1 Year or Less After 1 Year After 5 Years After 10 Total Securities Available for Sale U.S. Treasury and government agencies $ 2,685 $ 15,164 $ 6,237 $ 1,584 $ 25,670 Residential mortgage-backed Agency 2 205 2,248 48,044 50,499 Non-agency 2 1,179 1,181 Commercial mortgage-backed Agency 545 662 1,012 2,219 Non-agency 202 210 3,779 4,191 Asset-backed 86 2,322 1,274 2,287 5,969 Other 733 1,826 1,672 846 5,077 Total securities available for sale at amortized cost $ 3,506 $ 20,264 $ 12,305 $ 58,731 $ 94,806 Fair value $ 3,529 $ 20,700 $ 12,405 $ 60,165 $ 96,799 Weighted-average yield, GAAP basis (a) 1.68 % 1.58 % 1.72 % 2.62 % 2.25 % Securities Held to Maturity U.S. Treasury and government agencies $ 199 $ 315 $ 286 $ 800 Other $ 71 396 109 80 656 Total securities held to maturity at amortized cost $ 71 $ 595 $ 424 $ 366 $ 1,456 Fair value $ 72 $ 626 $ 490 $ 371 $ 1,559 Weighted-average yield, GAAP basis (a) 3.70 % 3.21 % 3.93 % 2.48 % 3.28 % (a) Weighted-average yields are based on amortized cost with effective yields weighted for the contractual maturity of each security.
Fair Value of Securities Pledged and Accepted as Collateral	The following table presents the fair value of securities that have been either pledged to or accepted from others to collateralize outstanding borrowings. Table 39: Fair Value of Securities Pledged and Accepted as Collateral In millions March 31 December 31 Pledged to others $ 21,794 $ 22,841 Accepted from others: Permitted by contract or custom to sell or repledge $ 817 $ 683 Permitted amount repledged to others $ 817 $ 683

Loans and Related Allowance f_2

Loans and Related Allowance for Credit Losses (Tables)	3 Months Ended
	Mar. 31, 2021
Asset Quality [Abstract]
Summary Of The Classification Of Portfolio Segments	Commercial Consumer • Commercial and industrial • Home equity • Commercial real estate • Residential real estate • Equipment lease financing • Automobile • Credit card • Education • Other consumer
Analysis of Loan Portfolio	Table 40: Analysis of Loan Portfolio (a) (b) Accruing Dollars in millions Current or Less 30-59 60-89 90 Days Total Nonperforming Fair Value Total Loans March 31, 2021 Commercial Commercial and industrial $ 129,130 $ 80 $ 13 $ 63 $ 156 $ 512 $ 129,798 Commercial real estate 28,085 12 1 13 221 28,319 Equipment lease financing 6,351 21 1 22 16 6,389 Total commercial 163,566 113 15 63 191 749 164,506 Consumer Home equity 22,706 43 20 63 656 $ 68 23,493 Residential real estate 20,862 162 73 275 510 (c) 541 505 22,418 Automobile 13,305 76 19 6 101 178 13,584 Credit card 5,561 31 24 52 107 7 5,675 Education 2,692 49 25 76 150 (c) 2,842 Other consumer 4,464 11 6 7 24 7 4,495 Total consumer 69,590 372 167 416 955 1,389 573 72,507 Total $ 233,156 $ 485 $ 182 $ 479 $ 1,146 $ 2,138 $ 573 $ 237,013 Percentage of total loans 98.38 % 0.20 % 0.08 % 0.20 % 0.48 % 0.90 % 0.24 % 100.00 % December 31, 2020 Commercial Commercial and industrial $ 131,245 $ 106 $ 26 $ 30 $ 162 $ 666 $ 132,073 Commercial real estate 28,485 6 1 7 224 28,716 Equipment lease financing 6,345 31 5 36 33 6,414 Total commercial 166,075 143 32 30 205 923 167,203 Consumer Home equity 23,318 50 21 71 645 $ 54 24,088 Residential real estate 20,945 181 78 319 578 (c) 528 509 22,560 Automobile 13,863 134 34 12 180 175 14,218 Credit card 6,074 43 30 60 133 8 6,215 Education 2,785 55 29 77 161 (c) 2,946 Other consumer 4,656 14 10 11 35 7 4,698 Total consumer 71,641 477 202 479 1,158 1,363 563 74,725 Total $ 237,716 $ 620 $ 234 $ 509 $ 1,363 $ 2,286 $ 563 $ 241,928 Percentage of total loans 98.27 % 0.26 % 0.10 % 0.21 % 0.56 % 0.94 % 0.23 % 100.00 % (a) Amounts in table represent loans held for investment and do not include any associated valuation allowance. (b) The accrued interest associated with our loan portfolio totaled $0.7 billion at both March 31, 2021 and December 31, 2020 and is included in Other assets on the Consolidated Balance Sheet. (c) Past due loan amounts include government insured or guaranteed Residential real estate loans and Education loans totaling $0.4 billion and $0.1 billion at March 31, 2021. Comparable amounts at December 31, 2020 were $0.4 billion and $0.2 billion. (d) Consumer loans accounted for under the fair value option for which we do not expect to collect substantially all principal and interest are subject to nonaccrual accounting and classification upon meeting any of our nonaccrual policies. Given that these loans are not accounted for at amortized cost, these loans have been excluded from the nonperforming loan population. (e) Net of unearned income, unamortized deferred fees and costs on originated loans, and premiums or discounts on purchased loans totaling $1.4 billion and $1.3 billion at March 31, 2021 and December 31, 2020, respectively.
Nonperforming Assets	The following table presents our nonperforming assets as of March 31, 2021 and December 31, 2020 , respectively: Table 41: Nonperforming Assets Dollars in millions March 31 December 31 Nonperforming loans Commercial $ 749 $ 923 Consumer (a) 1,389 1,363 Total nonperforming loans (b) 2,138 2,286 OREO and foreclosed assets 41 51 Total nonperforming assets $ 2,179 $ 2,337 Nonperforming loans to total loans 0.90 % 0.94 % Nonperforming assets to total loans, OREO and foreclosed assets 0.92 % 0.97 % Nonperforming assets to total assets 0.46 % 0.50 % (a) Excludes most unsecured consumer loans and lines of credit, which are charged off after 120 to 180 days past due and are not placed on nonperforming status. (b) Nonperforming loans for which there is no related ALLL totaled $0.7 billion at March 31, 2021, and is primarily comprised of loans with a fair value of collateral that exceeds the amortized cost basis. The comparable amount at December 31, 2020 was $0.8 billion.
Credit Quality Indicators By Loan Class	The following table presents credit quality indicators for the Commercial loan classes: Table 42: Commercial Credit Quality Indicators (a) Term Loans by Origination Year March 31, 2021 - In millions 2021 2020 2019 2018 2017 Prior Revolving Loans Revolving Loans Converted to Term Total Commercial and industrial Pass Rated $ 13,796 $ 19,870 $ 12,404 $ 7,540 $ 5,559 $ 10,715 $ 53,161 $ 51 $ 123,096 Criticized 158 429 725 603 317 594 3,856 20 6,702 Total commercial and industrial 13,954 20,299 13,129 8,143 5,876 11,309 57,017 71 129,798 Commercial real estate Pass Rated 1,041 3,261 6,034 3,195 2,675 8,673 239 25,118 Criticized 132 137 663 166 487 1,597 19 3,201 Total commercial real estate 1,173 3,398 6,697 3,361 3,162 10,270 258 28,319 Equipment lease financing Pass Rated 339 1,360 1,142 868 678 1,711 6,098 Criticized 11 71 73 79 34 23 291 Total equipment lease financing 350 1,431 1,215 947 712 1,734 6,389 Total commercial $ 15,477 $ 25,128 $ 21,041 $ 12,451 $ 9,750 $ 23,313 $ 57,275 $ 71 $ 164,506 Term Loans by Origination Year December 31, 2020 - In millions 2020 2019 2018 2017 2016 Prior Revolving Loans Revolving Loans Converted to Term Total Commercial and industrial Pass Rated $ 31,680 $ 13,340 $ 8,209 $ 5,956 $ 4,242 $ 7,141 $ 54,775 $ 53 $ 125,396 Criticized 339 702 578 334 224 351 4,130 19 6,677 Total commercial and industrial 32,019 14,042 8,787 6,290 4,466 7,492 58,905 72 132,073 Commercial real estate Pass Rated 3,709 6,268 3,426 2,841 2,341 6,792 218 25,595 Criticized 319 548 148 423 400 1,159 124 3,121 Total commercial real estate 4,028 6,816 3,574 3,264 2,741 7,951 342 28,716 Equipment lease financing Pass Rated 1,429 1,202 942 738 405 1,350 6,066 Criticized 78 92 86 39 22 31 348 Total equipment lease financing 1,507 1,294 1,028 777 427 1,381 6,414 Total commercial $ 37,554 $ 22,152 $ 13,389 $ 10,331 $ 7,634 $ 16,824 $ 59,247 $ 72 $ 167,203 (a) Loans in our commercial portfolio are classified as Pass Rated or Criticized based on the regulatory definitions, which are driven by the PD and LGD ratings that we assign. The Criticized classification includes loans that were rated special mention, substandard or doubtful as of March 31, 2021 and December 31, 2020. The following table presents credit quality indicators for the home equity and residential real estate loan classes: Table 43: Home Equity and Residential Real Estate Credit Quality Indicators Term Loans by Origination Year March 31, 2021 - In millions 2021 2020 2019 2018 2017 Prior Revolving Loans Revolving Loans Converted to Term Total Loans Home equity Current estimated LTV ratios . Greater than 100% $ 8 $ 41 $ 13 $ 10 $ 73 $ 471 $ 254 $ 870 Greater than or equal to 80% to 100% $ 35 253 200 39 27 139 1,384 615 2,692 Less than 80% 196 3,019 1,560 482 712 4,081 6,418 3,463 19,931 Total home equity $ 231 $ 3,280 $ 1,801 $ 534 $ 749 $ 4,293 $ 8,273 $ 4,332 $ 23,493 Updated FICO scores Greater than or equal to 780 $ 127 $ 1,925 $ 960 $ 273 $ 467 $ 2,640 $ 5,148 $ 1,844 $ 13,384 720 to 779 84 947 505 138 164 865 1,950 1,084 5,737 660 to 719 19 346 264 83 80 428 905 678 2,803 Less than 660 1 61 71 39 37 350 255 628 1,442 No FICO score available 1 1 1 1 10 15 98 127 Total home equity $ 231 $ 3,280 $ 1,801 $ 534 $ 749 $ 4,293 $ 8,273 $ 4,332 $ 23,493 Residential real estate Current estimated LTV ratios Greater than 100% $ 4 $ 56 $ 23 $ 28 $ 150 $ 261 Greater than or equal to 80% to 100% $ 346 142 274 70 113 328 1,273 Less than 80% 2,175 7,157 2,995 856 1,485 5,286 19,954 Government insured or guaranteed loans 8 29 25 39 829 930 Total residential real estate $ 2,521 $ 7,311 $ 3,354 $ 974 $ 1,665 $ 6,593 $ 22,418 Updated FICO scores Greater than or equal to 780 $ 1,409 $ 5,220 $ 2,411 $ 661 $ 1,206 $ 3,564 $ 14,471 720 to 779 1,061 1,767 708 182 308 1,056 5,082 660 to 719 51 267 166 81 85 518 1,168 Less than 660 43 38 23 24 501 629 No FICO score available 6 2 2 3 125 138 Government insured or guaranteed loans 8 29 25 39 829 930 Total residential real estate $ 2,521 $ 7,311 $ 3,354 $ 974 $ 1,665 $ 6,593 $ 22,418 Term Loans by Origination Year December 31, 2020 - In millions 2020 2019 2018 2017 2016 Prior Revolving Loans Revolving Loans Converted to Term Total Loans Home equity Current estimated LTV ratios . Greater than 100% $ 8 $ 44 $ 18 $ 15 $ 9 $ 88 $ 580 $ 279 $ 1,041 Greater than or equal to 80% to 100% 517 320 59 42 25 158 1,781 591 3,493 Less than 80% 2,909 1,636 513 773 660 3,754 6,433 2,876 19,554 Total home equity $ 3,434 $ 2,000 $ 590 $ 830 $ 694 $ 4,000 $ 8,794 $ 3,746 $ 24,088 Updated FICO scores Greater than or equal to 780 $ 2,019 $ 1,094 $ 311 $ 525 $ 449 $ 2,467 $ 5,382 $ 1,480 $ 13,727 720 to 779 1,028 558 153 181 145 777 2,137 941 5,920 660 to 719 334 273 86 84 66 402 985 625 2,855 Less than 660 52 74 39 39 33 345 277 620 1,479 No FICO score available 1 1 1 1 1 9 13 80 107 Total home equity $ 3,434 $ 2,000 $ 590 $ 830 $ 694 $ 4,000 $ 8,794 $ 3,746 $ 24,088 Residential real estate Current estimated LTV ratios Greater than 100% $ 3 $ 52 $ 26 $ 42 $ 41 $ 160 $ 324 Greater than or equal to 80% to 100% 495 422 127 156 124 307 1,631 Less than 80% 7,491 3,656 992 1,706 1,847 3,991 19,683 Government insured or guaranteed loans 7 28 27 38 57 765 922 Total residential real estate $ 7,996 $ 4,158 $ 1,172 $ 1,942 $ 2,069 $ 5,223 $ 22,560 Updated FICO scores Greater than or equal to 780 $ 5,425 $ 3,099 $ 814 $ 1,432 $ 1,538 $ 2,551 $ 14,859 720 to 779 2,268 820 220 340 335 818 4,801 660 to 719 252 161 76 98 92 475 1,154 Less than 660 40 48 33 31 41 485 678 No FICO score available 4 2 2 3 6 129 146 Government insured or guaranteed loans 7 28 27 38 57 765 922 Total residential real estate $ 7,996 $ 4,158 $ 1,172 $ 1,942 $ 2,069 $ 5,223 $ 22,560 The following table presents credit quality indicators for the automobile, credit card, education and other consumer loan classes: Table 44: Credit Quality Indicators for Automobile, Credit Card, Education and Other Consumer Loan Classes Term Loans by Origination Year March 31, 2021 - In millions 2021 2020 2019 2018 2017 Prior Revolving Loans Revolving Loans Converted to Term Total Loans Updated FICO Scores Automobile FICO score greater than or equal to 780 $ 775 $ 1,545 $ 1,701 $ 688 $ 362 $ 216 $ 5,287 720 to 779 242 1,067 1,380 678 320 157 3,844 660 to 719 63 591 1,076 590 240 106 2,666 Less than 660 4 228 723 535 208 89 1,787 Total automobile $ 1,084 $ 3,431 $ 4,880 $ 2,491 $ 1,130 $ 568 $ 13,584 Credit card FICO score greater than or equal to 780 $ 1,513 $ 3 $ 1,516 720 to 779 1,541 11 1,552 660 to 719 1,621 25 1,646 Less than 660 817 46 863 No FICO score available or required (a) 94 4 98 Total credit card $ 5,586 $ 89 $ 5,675 Education FICO score greater than or equal to 780 $ 1 $ 64 $ 86 $ 70 $ 55 $ 450 $ 726 720 to 779 4 34 44 37 27 202 348 660 to 719 4 10 14 14 8 90 140 Less than 660 1 1 3 2 2 35 44 No FICO score available or required (a) 3 12 9 5 3 1 33 Education loans using FICO credit metric 13 121 156 128 95 778 1,291 Other internal credit metrics 1,551 1,551 Total education $ 13 $ 121 $ 156 $ 128 $ 95 $ 2,329 $ 2,842 Other consumer FICO score greater than or equal to 780 $ 31 $ 135 $ 150 $ 49 $ 15 $ 40 $ 73 $ 1 $ 494 720 to 779 33 169 206 65 16 23 109 621 660 to 719 27 111 185 68 13 14 107 525 Less than 660 1 34 81 34 7 7 47 1 212 Other consumer loans using FICO credit metric 92 449 622 216 51 84 336 2 1,852 Other internal credit metrics 32 29 28 29 26 126 2,365 8 2,643 Total other consumer $ 124 $ 478 $ 650 $ 245 $ 77 $ 210 $ 2,701 $ 10 $ 4,495 Term Loans by Origination Year December 31, 2020 - In millions 2020 2019 2018 2017 2016 Prior Revolving Loans Revolving Loans Converted to Term Total Loans Updated FICO Scores Automobile FICO score greater than or equal to 780 $ 1,807 $ 1,915 $ 807 $ 452 $ 246 $ 58 $ 5,285 720 to 779 1,098 1,581 789 381 167 44 4,060 660 to 719 617 1,222 684 288 109 31 2,951 Less than 660 192 776 598 240 87 29 1,922 Total automobile $ 3,714 $ 5,494 $ 2,878 $ 1,361 $ 609 $ 162 $ 14,218 Credit card FICO score greater than or equal to 780 $ 1,635 $ 3 $ 1,638 720 to 779 1,724 11 1,735 660 to 719 1,765 26 1,791 Less than 660 902 51 953 No FICO score available or required (a) 94 4 98 Total credit card $ 6,120 $ 95 $ 6,215 Education FICO score greater than or equal to 780 $ 34 $ 90 $ 74 $ 59 $ 50 $ 428 $ 735 720 to 779 24 46 38 28 20 190 346 660 to 719 15 15 14 9 6 90 149 Less than 660 3 2 3 2 2 37 49 No FICO score available or required (a) 16 10 6 3 1 36 Education loans using FICO credit metric 92 163 135 101 78 746 1,315 Other internal credit metrics 1,631 1,631 Total education $ 92 $ 163 $ 135 $ 101 $ 78 $ 2,377 $ 2,946 Other consumer FICO score greater than or equal to 780 $ 162 $ 187 $ 63 $ 21 $ 5 $ 42 $ 86 $ 1 $ 567 720 to 779 197 247 82 22 5 22 123 698 660 to 719 127 210 81 17 3 14 117 1 570 Less than 660 28 86 41 9 2 8 53 1 228 Other consumer loans using FICO credit metric 514 730 267 69 15 86 379 3 2,063 Other internal credit metrics 67 33 37 26 60 75 2,334 3 2,635 Total other consumer $ 581 $ 763 $ 304 $ 95 $ 75 $ 161 $ 2,713 $ 6 $ 4,698 (a) Loans with no FICO score available or required generally refers to new accounts issued to borrowers with limited credit history, accounts for which we cannot obtain an updated FICO score (e.g., recent profile changes), cards issued with a business name and/or cards secured by collateral. Management proactively assesses the risk and size of this loan category and, when necessary, takes actions to mitigate the credit risk.
Financial Impact and TDRs by Concession Type	Table 45: Financial Impact and TDRs by Concession Type (a) Pre-TDR Post-TDR Amortized Cost Basis (c) During the three months ended March 31, 2021 Number Principal Rate Other Total Commercial 19 $ 93 $ 94 $ 94 Consumer 2,096 32 $ 16 12 28 Total TDRs 2,115 $ 125 $ 16 $ 106 $ 122 During the three months ended March 31, 2020 Commercial 13 $ 62 $ 6 $ 37 $ 43 Consumer 3,567 36 $ 22 10 32 Total TDRs 3,580 $ 98 $ 6 $ 22 $ 47 $ 75 (a) Impact of partial charge-offs at TDR date is included in this table. (b) Represents the amortized cost basis of the loans as of the quarter end prior to TDR designation. (c) Represents the amortized cost basis of the TDRs as of the end of the quarter in which the TDR occurs.
Rollforward of Allowance for Credit Losses	A rollforward of the ACL related to loans follows: Table 46: Rollforward of Allowance for Credit Losses (a) Three months ended March 31, 2021 Three Months Ended March 31, 2020 In millions Commercial Consumer Total Commercial Consumer Total Allowance for loan and lease losses Beginning balance $ 3,337 $ 2,024 $ 5,361 $ 1,812 $ 930 $ 2,742 Adoption of ASU 2016-13 (b) (304) 767 463 Beginning balance, adjusted 3,337 2,024 5,361 1,508 1,697 3,205 Charge-offs (69) (174) (243) (83) (221) (304) Recoveries 18 79 97 24 68 92 Net (charge-offs) (51) (95) (146) (59) (153) (212) Provision for (recapture of) credit losses (204) (298) (502) 531 421 952 Other 1 1 (1) (1) Ending balance $ 3,083 $ 1,631 $ 4,714 $ 1,979 $ 1,965 $ 3,944 Allowance for unfunded lending related commitments (c) Beginning balance $ 485 $ 99 $ 584 $ 316 $ 2 $ 318 Adoption of ASU 2016-13 (b) 53 126 179 Beginning balance, adjusted 485 99 584 369 128 497 Provision for (recapture of) credit losses (82) 5 (77) (25) (22) (47) Ending balance $ 403 $ 104 $ 507 $ 344 $ 106 $ 450 Allowance for credit losses at March 31 $ 3,486 $ 1,735 $ 5,221 $ 2,323 $ 2,071 $ 4,394 Allowance for credit losses at December 31 $ 3,822 $ 2,123 $ 5,945 $ 2,128 $ 932 $ 3,060 (a) Excludes allowances for investment securities and other financial assets, which together totaled $136 million and $21 million at March 31, 2021 and March 31, 2020, respectively. (b) Represents the impact of adopting ASU 2016-13, Financial Instruments - Credit Losses on January 1, 2020 and our transition from an incurred loss methodology for our reserves to an expected credit loss methodology.

Loan Sale and Servicing Activ_2

Loan Sale and Servicing Activities and Variable Interest Entities (Tables)	3 Months Ended
	Mar. 31, 2021
Loan Sale and Servicing Activities and Variable Interest Entities [Abstract]
Cash Flows Associated with Loan Sale and Servicing Activities	The following table provides cash flows associated with our loan sale and servicing activities: Table 47: Cash Flows Associated with Loan Sale and Servicing Activities In millions Residential Commercial Cash Flows - Three months ended March 31, 2021 Sales of loans (b) $ 1,239 $ 988 Repurchases of previously transferred loans (c) $ 93 $ 33 Servicing fees (d) $ 82 $ 38 Servicing advances recovered/(funded), net $ 17 $ (10) Cash flows on mortgage-backed securities held (e) $ 2,555 $ 29 Cash Flows - Three months ended March 31, 2020 Sales of loans (b) $ 1,334 $ 493 Repurchases of previously transferred loans (c) $ 95 $ 15 Servicing fees (d) $ 85 $ 33 Servicing advances recovered/(funded), net $ 12 $ 12 Cash flows on mortgage-backed securities held (e) $ 1,361 $ 37 (a) Represents cash flow information associated with both commercial mortgage loan transfers and servicing activities. (b) Gains/losses recognized on sales of loans were insignificant for the periods presented. (c) Includes both residential and commercial mortgage government insured or guaranteed loans eligible for repurchase through the exercise of our ROAP option, as well as residential mortgage loans repurchased due to alleged breaches of origination covenants or representations and warranties made to purchasers. (d) Includes contractually specified servicing fees, late charges and ancillary fees.
Principal Balance, Delinquent Loans (Loans 90 Days or More Past Due), and Net Charge-Offs Related to Serviced Loans	Table 48: Principal Balance, Delinquent Loans and Net Charge-offs Related to Serviced Loans For Others In millions Residential Mortgages Commercial Mortgages (a) March 31, 2021 Total principal balance $ 41,096 $ 41,735 Delinquent loans (b) $ 450 $ 126 December 31, 2020 Total principal balance $ 43,351 $ 40,790 Delinquent loans (b) $ 453 $ 136 Three months ended March 31, 2021 Net charge-offs (c) $ 2 $ 153 Three months ended March 31, 2020 Net charge-offs (c) $ 8 $ 99 (a) Represents information at the securitization level in which we have sold loans and we are the servicer for the securitization. (b) Serviced delinquent loans are 90 days or more past due or are in process of foreclosure. (c) Net charge-offs for Residential mortgages represent credit losses less recoveries distributed and as reported to investors during the period. Net charge-offs for Commercial mortgages represent credit losses less recoveries distributed and as reported by the trustee for commercial mortgage-backed securitizations. Realized losses for Agency securitizations are not reflected as we do not manage the underlying real estate upon foreclosure and, as such, do not have access to loss information.
Non-Consolidated VIEs	Table 49: Non-Consolidated VIEs In millions PNC Risk of Loss (a) Carrying Value of Assets Carrying Value of Liabilities March 31, 2021 Mortgage-backed securitizations (b) $ 16,883 $ 16,883 (c) $ 1 Tax credit investments and other 3,094 3,077 (d) 1,425 (e) Total $ 19,977 $ 19,960 $ 1,426 December 31, 2020 Mortgage-backed securitizations (b) $ 18,207 $ 18,207 (c) $ 1 Tax credit investments and other 3,121 2,894 (d) 1,198 (e) Total $ 21,328 $ 21,101 $ 1,199 (a) Represents loans, investments and other assets related to non-consolidated VIEs, net of collateral (if applicable). The risk of loss excludes any potential tax recapture associated with tax credit investments. (b) Amounts reflect involvement with securitization SPEs where we transferred to and/or service loans for an SPE and we hold securities issued by that SPE. Values disclosed in the PNC Risk of Loss column represent our maximum exposure to loss for those securities’ holdings. (c) Included in Investment securities, Mortgage servicing rights and Other assets on our Consolidated Balance Sheet. (d) Included in Investment securities, Loans, Equity investments and Other assets on our Consolidated Balance Sheet. (e) Included in Deposits and Other liabilities on our Consolidated Balance Sheet.

Goodwill and Mortgage Servici_2

Goodwill and Mortgage Servicing Rights (Tables)	3 Months Ended
	Mar. 31, 2021
Goodwill and Intangible Assets Disclosure [Abstract]
Mortgage Servicing Rights	Changes in the commercial and residential MSRs follow: Table 50: Mortgage Servicing Rights Commercial MSRs Residential MSRs In millions 2021 2020 2021 2020 January 1 $ 569 $ 649 $ 673 $ 995 Additions: From loans sold with servicing retained 18 11 13 10 Purchases 13 19 71 18 Changes in fair value due to: Time and payoffs (a) (28) (35) (73) (39) Other (b) 129 (167) 295 (379) March 31 $ 701 $ 477 $ 979 $ 605 Related unpaid principal balance at March 31 $ 256,198 $ 225,769 $ 117,287 $ 118,104 Servicing advances at March 31 $ 447 $ 145 $ 126 $ 99 (a) Represents decrease in MSR value due to passage of time, including the impact from both regularly scheduled loan principal payments and loans that were paid down or paid off during the period. (b) Represents MSR value changes resulting primarily from market-driven changes in interest rates.
Commercial Mortgage Loan Servicing Assets - Key Valuation Assumptions	The following tables set forth the fair value of commercial and residential MSRs and the sensitivity analysis of the hypothetical effect on the fair value of MSRs to immediate adverse changes of 10% and 20% in those assumptions. Table 51: Commercial Mortgage Servicing Rights – Key Valuation Assumptions Dollars in millions March 31 December 31 Fair value $ 701 $ 569 Weighted-average life (years) 4.7 4.4 Weighted-average constant prepayment rate 4.87 % 4.87 % Decline in fair value from 10% adverse change $ 11 $ 9 Decline in fair value from 20% adverse change $ 22 $ 18 Effective discount rate 7.39 % 7.33 % Decline in fair value from 10% adverse change $ 20 $ 15 Decline in fair value from 20% adverse change $ 40 $ 31
Residential Mortgage Loan Servicing Assets - Key Valuation Assumptions	The following tables set forth the fair value of commercial and residential MSRs and the sensitivity analysis of the hypothetical effect on the fair value of MSRs to immediate adverse changes of 10% and 20% in those assumptions. Table 52: Residential Mortgage Servicing Rights – Key Valuation Assumptions Dollars in millions March 31 December 31 Fair value $ 979 $ 673 Weighted-average life (years) 6.2 3.8 Weighted-average constant prepayment rate 10.72 % 21.13 % Decline in fair value from 10% adverse change $ 38 $ 41 Decline in fair value from 20% adverse change $ 79 $ 82 Weighted-average option adjusted spread 944 bps 922 bps Decline in fair value from 10% adverse change $ 34 $ 20 Decline in fair value from 20% adverse change $ 66 $ 38

Leases (Tables)

Leases (Tables)	3 Months Ended
	Mar. 31, 2021
Leases [Abstract]
Components of Lease Income	Table 53: Lessor Income Three months ended In millions 2021 2020 Product Sales-type leases and direct financing leases (a) $ 62 $ 71 Operating leases (b) 20 27 Lessor income $ 82 $ 98 (a) Included in Loan interest income on the Consolidated Income Statement. (b) Included in Corporate services on the Consolidated Income Statement.
Sales-type Lease, Lease Income	Table 53: Lessor Income Three months ended In millions 2021 2020 Product Sales-type leases and direct financing leases (a) $ 62 $ 71 Operating leases (b) 20 27 Lessor income $ 82 $ 98 (a) Included in Loan interest income on the Consolidated Income Statement. (b) Included in Corporate services on the Consolidated Income Statement.
Direct Financing Lease, Lease Income	Table 53: Lessor Income Three months ended In millions 2021 2020 Product Sales-type leases and direct financing leases (a) $ 62 $ 71 Operating leases (b) 20 27 Lessor income $ 82 $ 98 (a) Included in Loan interest income on the Consolidated Income Statement. (b) Included in Corporate services on the Consolidated Income Statement.

Commitments (Tables)

Commitments (Tables)	3 Months Ended
	Mar. 31, 2021
Commitments and Guarantees [Abstract]
Commitments to Extend Credit and Other Commitments	Table 54: Commitments to Extend Credit and Other Commitments In millions March 31 December 31 Commitments to extend credit Commercial $ 154,482 $ 153,089 Home equity lines of credit 16,604 16,626 Credit card 31,132 31,019 Other 8,195 7,087 Total commitments to extend credit 210,413 207,821 Net outstanding standby letters of credit (a) 9,090 9,053 Standby bond purchase agreements (b) 1,543 1,448 Other commitments (c) 2,733 2,046 Total commitments to extend credit and other commitments $ 223,779 $ 220,368 (a) Net outstanding standby letters of credit include $3.7 billion and $3.8 billion at March 31, 2021 and December 31, 2020, respectively, which support remarketing programs. (b) We enter into standby bond purchase agreements to support municipal bond obligations. (c) Includes $1.1 billion related to investments in qualified affordable housing projects for both March 31, 2021 and December 31, 2020.

Total Equity and Other Compre_2

Total Equity and Other Comprehensive Income (Tables)	3 Months Ended
	Mar. 31, 2021
Other Comprehensive Income [Abstract]
Rollforward of Total Equity	Activity in total equity for the three months ended March 31, 2021 and 2020 is as follows: Table 55: Rollforward of Total Equity Shareholders’ Equity In millions Shares Common Capital Capital Retained Accumulated Treasury Non- Total Equity Three months ended Balance at December 31, 2019 (a) 433 $ 2,712 $ 3,993 $ 12,376 $ 42,215 $ 799 $ (12,781) $ 29 $ 49,343 Cumulative effect of ASU 2016-13 adoption (b) (671) (671) Balance at January 1, 2020 (a) 433 $ 2,712 $ 3,993 $ 12,376 $ 41,544 $ 799 $ (12,781) $ 29 $ 48,672 Net income 908 7 915 Other comprehensive income, net of tax 1,719 1,719 Cash dividends declared - Common (503) (503) Cash dividends declared - Preferred (63) (63) Preferred stock discount accretion 1 (1) Treasury stock activity (9) 49 (1,359) (1,310) Other (131) (9) (140) Balance at March 31, 2020 (a) 424 $ 2,712 $ 3,994 $ 12,294 $ 41,885 $ 2,518 $ (14,140) $ 27 $ 49,290 Balance at December 31, 2020 (a) 424 $ 2,713 $ 3,517 $ 12,367 $ 46,848 $ 2,770 $ (14,205) $ 31 $ 54,041 Net income 1,816 10 1,826 Other comprehensive income (loss), net of tax (1,480) (1,480) Cash dividends declared - Common (493) (493) Cash dividends declared - Preferred (57) (57) Preferred stock discount accretion 1 (1) Treasury stock activity 1 69 59 128 Other (75) (11) (86) Balance at March 31, 2021 (a) 425 $ 2,713 $ 3,518 $ 12,361 $ 48,113 $ 1,290 $ (14,146) $ 30 $ 53,879 (a) The par value of our preferred stock outstanding was less than $0.5 million at each date and, therefore, is excluded from this presentation. (b) Represents the cumulative effect of adopting ASU 2016-13 - Financial Instruments - Credit Losses
Other Comprehensive Income (Loss)	Details of other comprehensive income (loss) are as follows: Table 56: Other Comprehensive Income (Loss) Three months ended March 31 2021 2020 In millions Pre-tax Tax effect After-tax Pre-tax Tax effect After-tax Debt securities Net unrealized gains (losses) on securities $ (1,181) $ 278 $ (903) $ 1,662 $ (381) $ 1,281 Less: Net realized gains (losses) reclassified to earnings (a) 13 (3) 10 182 (42) 140 Net change (1,194) 281 (913) 1,480 (339) 1,141 Cash flow hedge derivatives Net unrealized gains (losses) on cash flow hedge derivatives (640) 151 (489) 830 (190) 640 Less: Net realized gains (losses) reclassified to earnings (a) 135 (32) 103 45 (10) 35 Net change (775) 183 (592) 785 (180) 605 Pension and other postretirement benefit plan adjustments Net pension and other postretirement benefit plan activity and other reclassified to 30 (7) 23 12 (3) 9 Net change 30 (7) 23 12 (3) 9 Other Net unrealized gains (losses) on other transactions 1 1 2 8 (18) (10) Net change 1 1 2 8 (18) (10) Total other comprehensive income (loss) from continuing operations (1,938) 458 (1,480) 2,285 (540) 1,745 Total other comprehensive income (loss) from discontinued operations (34) 8 (26) Total other comprehensive income (loss) $ (1,938) $ 458 $ (1,480) $ 2,251 $ (532) $ 1,719 (a) Reclassifications for pre-tax debt securities and cash flow hedges are recorded in interest income and noninterest income on the Consolidated Income Statement. (b) Reclassifications include amortization of actuarial losses (gains) and amortization of prior period services costs (credits) which are recorded in noninterest expense on the Consolidated Income Statement.
Accumulated Other Comprehensive Income (Loss) Components	Table 57: Accumulated Other Comprehensive Income (Loss) Components In millions, after-tax Debt securities Cash flow hedge derivatives Pension and other postretirement benefit plan adjustments Other Accumulated other Comprehensive Income from Continuing Operations Accumulated other Comprehensive Income from Discontinued Operations Total Three months ended Balance at December 31, 2019 $ 1,067 $ 276 $ (408) $ (21) $ 914 $ (115) $ 799 Net activity 1,141 605 9 (10) 1,745 (26) 1,719 Balance at March 31, 2020 $ 2,208 $ 881 $ (399) $ (31) $ 2,659 $ (141) $ 2,518 Balance at December 31, 2020 $ 2,462 $ 659 $ (345) $ (6) $ 2,770 $ 2,770 Net activity (913) (592) 23 2 (1,480) (1,480) Balance at March 31, 2021 $ 1,549 $ 67 $ (322) $ (4) $ 1,290 $ 1,290
Dividends Declared	The following table provides the dividends per share for PNC's common and preferred stock: Table 58: Dividends Per Share (a) Three months ended March 31 2021 2020 Common Stock $ 1.15 $ 1.15 Preferred Stock Series B $ 0.45 $ 0.45 Series O $ 3,375 $ 3,375 Series P $ 1,531 $ 1,531 Series Q (b) $ 1,344 (a) Dividends are payable quarterly other than Series O, Series R and Series S preferred stock, which are payable semiannually, with the Series O payable in different quarters from the Series R and Series S preferred stock. (b) On September 1, 2020, PNC redeemed all 4,800 shares of its Series Q Preferred Stock, as well as all 19.2 million Depositary Shares representing fractional interest in such shares.

Earnings per Share (Tables)

Earnings per Share (Tables)	3 Months Ended
	Mar. 31, 2021
Earnings Per Share [Abstract]
Basic and Diluted Earnings per Common Share	Table 59: Basic and Diluted Earnings Per Common Share Three months ended In millions, except per share data 2021 2020 Basic Net income from continuing operations $ 1,826 $ 759 Less: Net income attributable to noncontrolling interests 10 7 Preferred stock dividends 57 63 Preferred stock discount accretion and redemptions 1 1 Net income from continuing operations attributable to common shareholders 1,758 688 Less: Dividends and undistributed earnings allocated to nonvested restricted shares 8 3 Net income from continuing operations attributable to basic common shareholders $ 1,750 $ 685 Net income from discontinued operations attributable to common shareholders $ 156 Less: Undistributed earnings allocated to nonvested restricted shares 1 Net income from discontinued operations attributable to basic common shareholders $ 155 Basic weighted-average common shares outstanding 426 429 Basic earnings per common share from continuing operations (a) $ 4.11 $ 1.59 Basic earnings per common share from discontinued operations (a) $ 0.37 Basic earnings per common share $ 4.11 $ 1.96 Diluted Net income from continuing operations attributable to diluted common shareholders $ 1,750 $ 685 Net income from discontinued operations attributable to basic common shareholders $ 155 Less: Impact of earnings per share dilution from discontinued operations 1 Net income from discontinued operations attributable to diluted common shareholders $ 154 Basic weighted-average common shares outstanding 426 429 Dilutive potential common shares 1 Diluted weighted-average common shares outstanding 426 430 Diluted earnings per common share from continuing operations (a) $ 4.10 $ 1.59 Diluted earnings per common share from discontinued operations (a) $ 0.36 Diluted earnings per common share $ 4.10 $ 1.95 (a) Basic and diluted earnings per share under the two-class method are determined on net income reported on the income statement less earnings allocated to nonvested restricted shares and restricted share units with nonforfeitable dividends and dividend rights (participating securities).

Fair Value (Tables)

Fair Value (Tables)	3 Months Ended
	Mar. 31, 2021
Fair Value [Abstract]
Fair Value Measurements - Recurring Basis Summary	Table 60: Fair Value Measurements – Recurring Basis Summary March 31, 2021 December 31, 2020 In millions Level 1 Level 2 Level 3 Total Level 1 Level 2 Level 3 Total Assets Residential mortgage loans held for sale $ 1,087 $ 165 $ 1,252 $ 691 $ 163 $ 854 Commercial mortgage loans held for sale 329 56 385 305 57 362 Securities available for sale U.S. Treasury and government agencies $ 21,997 3,953 25,950 $ 16,675 4,036 20,711 Residential mortgage-backed Agency 51,554 51,554 48,911 48,911 Non-agency 108 1,316 1,424 136 1,365 1,501 Commercial mortgage-backed Agency 2,284 2,284 2,688 2,688 Non-agency 4,225 11 4,236 3,678 11 3,689 Asset-backed 5,847 194 6,041 4,951 199 5,150 Other 5,238 72 5,310 4,636 72 4,708 Total securities available for sale 21,997 73,209 1,593 96,799 16,675 69,036 1,647 87,358 Loans 730 711 1,441 718 647 1,365 Equity investments (a) 1,133 1,343 2,725 1,070 1,263 2,629 Residential mortgage servicing rights 979 979 673 673 Commercial mortgage servicing rights 701 701 569 569 Trading securities (b) 576 1,012 1,588 548 1,690 2,238 Financial derivatives (b) (c) 4,853 63 4,916 6,415 118 6,533 Other assets 384 93 477 373 81 454 Total assets (d) $ 24,090 $ 81,313 $ 5,611 $ 111,263 $ 18,666 $ 78,936 $ 5,137 $ 103,035 Liabilities Other borrowed funds $ 790 $ 46 $ 2 $ 838 $ 661 $ 44 $ 2 $ 707 Financial derivatives (c) (e) 2,796 227 3,023 2,483 273 2,756 Other liabilities 73 73 43 43 Total liabilities (f) $ 790 $ 2,842 $ 302 $ 3,934 $ 661 $ 2,527 $ 318 $ 3,506 (a) Certain investments that are measured at fair value using the net asset value per share (or its equivalent) practical expedient have not been classified in the fair value hierarchy. (b) Included in Other assets on the Consolidated Balance Sheet. (c) Amounts at March 31, 2021 and December 31, 2020 are presented gross and are not reduced by the impact of legally enforceable master netting agreements that allow us to net positive and negative positions and cash collateral held or placed with the same counterparty. See Note 12 Financial Derivatives for additional information related to derivative offsetting. (d) Total assets at fair value as a percentage of total consolidated assets was 23% and 22% as of March 31, 2021 and December 31, 2020, respectively. Level 3 assets as a percentage of total assets at fair value was 5% at both March 31, 2021 and December 31, 2020. Level 3 assets as a percentage of total consolidated assets was 1% at both March 31, 2021 and December 31, 2020. (e) Included in Other liabilities on the Consolidated Balance Sheet. (f) Total liabilities at fair value as a percentage of total consolidated liabilities was 1% at both March 31, 2021 and December 31, 2020. Level 3 liabilities as a percentage of total liabilities at fair value was 8% and 9% as of March 31, 2021 and December 31, 2020, respectively. Level 3 liabilities as a percentage of total consolidated liabilities was less than 1% at both March 31, 2021 and December 31, 2020.
Reconciliation of Level 3 Assets and Liabilities	Reconciliations of assets and liabilities measured at fair value on a recurring basis using Level 3 inputs for the three months ended March 31, 2021 and 2020 follow: Table 61: Reconciliation of Level 3 Assets and Liabilities Three Months Ended March 31, 2021 Total realized / unrealized Unrealized Level 3 Instruments Only Fair Value Dec. 31, 2020 Included in Included Purchases Sales Issuances Settlements Transfers Transfers Fair Assets Residential mortgage loans $ 163 $ 1 $ 35 $ (16) $ (16) $ 3 $ (5) (e) $ 165 Commercial mortgage 57 (1) 56 Securities available for sale Residential mortgage- 1,365 9 $ 16 (74) 1,316 Commercial mortgage- 11 11 Asset-backed 199 1 3 (9) 194 Other 72 1 (1) 72 Total securities 1,647 10 19 1 (84) 1,593 Loans 647 10 88 (3) (28) (3) (e) 711 $ 11 Equity investments 1,263 67 40 (27) 1,343 63 Residential mortgage 673 295 71 $ 13 (73) 979 295 Commercial mortgage 569 129 13 18 (28) 701 129 Financial derivatives 118 (14) 1 (42) 63 (11) Total assets $ 5,137 $ 497 $ 19 $ 249 $ (46) $ 31 $ (271) $ 3 $ (8) $ 5,611 $ 487 Liabilities Other borrowed funds $ 2 $ 1 $ (1) $ 2 Financial derivatives 273 $ (14) $ 2 (34) 227 $ (30) Other liabilities 43 35 30 (35) 73 4 Total liabilities $ 318 $ 21 $ 2 $ 31 $ (70) $ 302 $ (26) Net gains (losses) $ 476 (f) $ 513 (g) Three Months Ended March 31, 2020 Total realized / unrealized Unrealized gains/losses on assets and liabilities held on Consolidated Balance Sheet at Mar. 31, 2020 Level 3 Instruments Only Fair Value Dec. 31, 2019 Included in Earnings Included in Other comprehensive income (b) Purchases Sales Issuances Settlements Transfers into Level 3 Transfers out of Level 3 Fair Value Mar. 31, 2020 Assets Residential mortgage loans $ 2 $ 2 $(1) $ 4 $ (3) (e) $ 4 Commercial mortgage 64 $ (1) $ (3) 60 $ (1) Securities available for sale Residential mortgage- 1,741 16 $ (222) (93) 1,442 Asset-backed 240 2 (29) (11) 202 Other 74 (5) 4 73 Total securities 2,055 18 (256) 4 (104) 1,717 Loans 300 11 16 (26) 362 (d) (8) (e) 655 11 Equity investments 1,276 (69) 71 (58) 1,220 (64) Residential mortgage 995 (379) 18 $ 10 (39) 605 (379) Commercial mortgage 649 (167) 19 11 (35) 477 (166) Trading securities Financial derivatives 54 101 2 (22) 135 75 Other assets Total assets $ 5,395 $ (486) $ (256) $ 132 $ (85) $ 21 $ 159 $ 4 $ (11) $ 4,873 $ (524) Liabilities Other borrowed funds $ 7 $ 12 $ (14) $ 5 Financial derivatives 200 $ 8 $ 1 (24) 185 $ 10 Other liabilities 137 2 11 (78) $ 2 $ (2) 72 (6) Total liabilities $ 344 $ 10 $ 1 $ 23 $ (116) $ 2 $ (2) $ 262 $ 4 Net gains (losses) $ (496) (f) $ (528) (g) (a) Losses for assets are bracketed while losses for liabilities are not. (b) The difference in unrealized gains and losses for the period included in Other comprehensive income and changes in unrealized gains and losses for the period included in Other comprehensive income for securities available for sale held at the end of the reporting period were not significant. (c) The amount of the total gains or losses for the period included in earnings that is attributable to the change in unrealized gains or losses related to those assets and liabilities held at the end of the reporting period. (d) Upon adoption of ASU 2016-13 - Credit Losses , we discontinued the accounting for purchased impaired loans and elected the one-time fair value option election for some of these loans and certain nonperforming loans. (e) Residential mortgage loan transfers out of Level 3 are primarily driven by residential mortgage loans transferring to OREO as well as reclassification of mortgage loans held for sale to held for investment. (f) Net gains (losses) realized and unrealized included in earnings related to Level 3 assets and liabilities included amortization and accretion. The amortization and accretion amounts were included in Interest income on the Consolidated Income Statement and the remaining net gains (losses) realized and unrealized were included in Noninterest income on the Consolidated Income Statement. (g) Net unrealized gains (losses) related to assets and liabilities held at the end of the reporting period were included in Noninterest income on the Consolidated Income Statement.
Fair Value Measurements - Recurring Quantitative Information	Quantitative information about the significant unobservable inputs within Level 3 recurring assets and liabilities follows: Table 62: Fair Value Measurements – Recurring Quantitative Information March 31, 2021 Level 3 Instruments Only Fair Value Valuation Techniques Unobservable Inputs Range (Weighted-Average) (a) Commercial mortgage loans held for sale $ 56 Discounted cash flow Spread over the benchmark curve (b) 620bps - 6,350bps (4,038bps) Residential mortgage-backed 1,316 Priced by a third-party vendor using a discounted cash flow pricing model Constant prepayment rate 1.0% - 37.6% (10.2%) Constant default rate 0.0% - 18.8% (6.0%) Loss severity 25.0% -95.7% (48.6%) Spread over the benchmark curve (b) 155bps weighted-average Asset-backed securities 194 Priced by a third-party vendor using a discounted cash flow pricing model Constant prepayment rate 1.0% - 40.0% (8.4%) Constant default rate 1.4% - 6.0% (2.9%) Loss severity 30.0% - 100.0% (55.3%) Spread over the benchmark curve (b) 197bps weighted-average Loans - Residential real estate 429 Consensus pricing (c) Cumulative default rate 3.6% - 100.0% (81.5%) Loss severity 0.0% - 100.0% (10.0%) Discount rate 4.8% - 6.8% (5.1%) 130 Discounted cash flow Loss severity 8.0% weighted-average Discount rate 3.2% weighted-average Loans - Home equity 20 Consensus pricing (c) Cumulative default rate 3.6% -100.0% (85.5%) Loss severity 0.0% - 98.4% (31.5%) Discount rate 4.8% - 6.8% (6.2%) 132 Consensus pricing (c) Credit and liquidity discount 4.7% - 92.0% (44.0%) Equity investments 1,343 Multiple of adjusted earnings Multiple of earnings 4.0x - 20.1x (8.8x) Residential mortgage servicing rights 979 Discounted cash flow Constant prepayment rate 0.0% - 31.4% (10.7%) Spread over the benchmark curve (b) 383bps - 2,893bps (944bps) Commercial mortgage servicing rights 701 Discounted cash flow Constant prepayment rate 4.1% - 13.6% (4.9%) Discount rate 5.5% - 7.6% (7.4%) Financial derivatives - Swaps related to (201) Discounted cash flow Estimated conversion factor of Visa Class B shares into Class A shares 162.3% weighted-average Estimated annual growth rate of Visa Class A share price 16.0% Estimated length of litigation resolution date Q2 2022 Insignificant Level 3 assets, net of 210 Total Level 3 assets, net of liabilities (e) $ 5,309 December 31, 2020 Level 3 Instruments Only Fair Value Valuation Techniques Unobservable Inputs Range (Weighted-Average) (a) Commercial mortgage loans held for sale $ 57 Discounted cash flow Spread over the benchmark curve (b) 630bps - 5,275bps (3,406bps) Residential mortgage-backed 1,365 Priced by a third-party vendor using a discounted cash flow pricing model Constant prepayment rate 1.0% - 37.6% (8.6%) Constant default rate 0.0% - 12.2% (4.7%) Loss severity 25.0% - 95.7% (48.8%) Spread over the benchmark curve (b) 242bps weighted-average Asset-backed securities 199 Priced by a third-party vendor using a discounted cash flow pricing model Constant prepayment rate 1.0% -22.0% (7.4%) Constant default rate 1.0% - 6.0% (3.3%) Loss severity 30.0% - 100.0% (58.1%) Spread over the benchmark curve (b) 291bps weighted-average Loans - Residential real estate 434 Consensus pricing (c) Cumulative default rate 3.6% - 100.0% (82.1%) Loss severity 0.0% - 100.0% (11.2%) Discount rate 4.8% - 6.8% (5.1%) 132 Discounted cash flow Loss severity 8.0% weighted-average Discount rate 3.2% weighted-average Loans - Home equity 21 Consensus pricing (c) Cumulative default rate 3.6% - 100.0% (88.5%) Loss severity 0.0% -98.4% (33.3%) Discount rate 4.8% - 6.8% (6.3%) 60 Consensus pricing (c) Credit and Liquidity discount 17.5% -97.0% (57.7%) Equity investments 1,263 Multiple of adjusted earnings Multiple of earnings 5.0x - 15.9x (8.7x) Residential mortgage servicing rights 673 Discounted cash flow Constant prepayment rate 0.0% - 77.5% (21.1%) Spread over the benchmark curve (b) 325bps - 2,783bps (922bps) Commercial mortgage servicing rights 569 Discounted cash flow Constant prepayment rate 4.0% - 16.1% (4.9%) Discount rate 4.7% - 7.8% (7.3%) Financial derivatives - Swaps related to (252) Discounted cash flow Estimated conversion factor of Visa Class B shares into Class A shares 162.3% weighted-average Estimated annual growth rate of Visa Class A share price 16.0% Estimated length of litigation Q2 2022 Insignificant Level 3 assets, net of 298 Total Level 3 assets, net of liabilities (e) $ 4,819 (a) Unobservable inputs were weighted by the relative fair value of the instruments. (b) The assumed yield spread over the benchmark curve for each instrument is generally intended to incorporate non-interest rate risks, such as credit and liquidity risks. (c) Consensus pricing refers to fair value estimates that are generally internally developed using information such as dealer quotes or other third-party provided valuations or comparable asset prices. (d) Represents the aggregate amount of Level 3 assets and liabilities measured at fair value on a recurring basis that are individually and in the aggregate insignificant. The amount includes certain financial derivative assets and liabilities, trading securities, other securities, residential mortgage loans held for sale, other assets, other borrowed funds and other liabilities. (e) Consisted of total Level 3 assets of $5.6 billion and total Level 3 liabilities of $0.3 billion as of March 31, 2021 and $5.1 billion and $0.3 billion as of December 31, 2020, respectively.
Fair Value Measurements - Nonrecurring	Assets measured at fair value on a nonrecurring basis follow: Table 63: Fair Value Measurements – Nonrecurring (a) (b) (c) Fair Value Gains (Losses) In millions March 31 December 31 March 31 March 31 Assets Nonaccrual loans $ 345 $ 332 $ (17) $ (28) Loans held for sale 243 (17) OREO and foreclosed assets 2 18 (1) Long-lived assets 6 20 (2) (1) Total assets $ 596 $ 370 $ (36) $ (30) (a) All Level 3 as of March 31, 2021 and December 31, 2020, except for $243 million included in Loans held for sale which was categorized as Level 2 as of March 31, 2021. (b) Valuation techniques applied were fair value of property or collateral. (c) Unobservable inputs used were appraised value/sales price, broker opinions or projected income/required improvement costs. Additional quantitative information was not meaningful for the periods presented.
Fair Value Option - Fair Value and Principal Balances	Fair values and aggregate unpaid principal balances of certain items for which we elected the fair value option follow: Table 64: Fair Value Option – Fair Value and Principal Balances March 31, 2021 December 31, 2020 In millions Fair Value Aggregate Unpaid Difference Fair Value Aggregate Unpaid Difference Assets Residential mortgage loans held for sale Accruing loans less than 90 days past due $ 1,204 $ 1,172 $ 32 $ 831 $ 793 $ 38 Accruing loans 90 days or more past due 3 3 4 4 Nonaccrual loans 45 54 (9) 20 24 (4) Total $ 1,252 $ 1,229 $ 23 $ 855 $ 821 $ 34 Commercial mortgage loans held for sale (a) Accruing loans less than 90 days past due $ 380 $ 396 $ (16) $ 357 $ 370 $ (13) Nonaccrual loans 5 6 (1) 5 6 (1) Total $ 385 $ 402 $ (17) $ 362 $ 376 $ (14) Loans Accruing loans less than 90 days past due $ 622 $ 632 $ (10) $ 519 $ 530 $ (11) Accruing loans 90 days or more past due 246 260 (14) 283 295 (12) Nonaccrual loans 573 845 (272) 563 820 (257) Total $ 1,441 $ 1,737 $ (296) $ 1,365 $ 1,645 $ (280) Other assets $ 93 $ 91 $ 2 $ 81 $ 69 $ 12 Liabilities Other borrowed funds $ 28 $ 28 $ 32 $ 33 $ (1) (a) There were no accruing loans 90 days or more past due within this category at March 31, 2021 or December 31, 2020.
Fair Value Option - Changes in Fair Value	The changes in fair value for items for which we elected the fair value option are as follows: Table 65: Fair Value Option – Changes in Fair Value (a) Gains (Losses) Three months ended March 31 March 31 In millions 2021 2020 Assets Residential mortgage loans held for sale $ 16 $ 46 Commercial mortgage loans held for sale $ 20 $ 48 Loans $ 14 $ 18 Other assets $ 14 $ (36) (a) The impact on earnings of offsetting hedged items or hedging instruments is not reflected in these amounts.
Additional Fair Value Information Related to Other Financial Instruments	Table 66: Additional Fair Value Information Related to Other Financial Instruments Carrying Fair Value In millions Amount Total Level 1 Level 2 Level 3 March 31, 2021 Assets Cash and due from banks $ 7,455 $ 7,455 $ 7,455 Interest-earning deposits with banks 86,161 86,161 $ 86,161 Securities held to maturity 1,459 1,559 874 485 $ 200 Net loans (excludes leases) 224,468 228,650 228,650 Other assets 3,783 3,782 3,780 2 Total assets $ 323,326 $ 327,607 $ 8,329 $ 90,426 $ 228,852 Liabilities Time deposits $ 18,813 $ 18,651 $ 18,651 Borrowed funds 32,192 32,790 31,129 $ 1,661 Unfunded lending related commitments 507 507 507 Other liabilities 486 486 486 Total liabilities $ 51,998 $ 52,434 $ 50,266 $ 2,168 December 31, 2020 Assets Cash and due from banks $ 7,017 $ 7,017 $ 7,017 Interest-earning deposits with banks 85,173 85,173 $ 85,173 Securities held to maturity 1,445 1,604 920 489 $ 195 Net loans (excludes leases) 228,788 233,688 233,688 Other assets 3,601 3,600 3,559 41 Total assets $ 326,024 $ 331,082 $ 7,937 $ 89,221 $ 233,924 Liabilities Time deposits $ 19,692 $ 19,662 $ 19,662 Borrowed funds 36,488 37,192 35,571 $ 1,621 Unfunded lending related commitments 584 584 584 Other liabilities 413 413 413 Total liabilities $ 57,177 $ 57,851 $ 55,646 $ 2,205

Financial Derivatives (Tables)

Financial Derivatives (Tables)	3 Months Ended
	Mar. 31, 2021
Derivative Instruments and Hedging Activities Disclosure [Abstract]
Total Gross Derivatives	Table 67: Total Gross Derivatives (a) March 31, 2021 December 31, 2020 In millions Notional / Asset Fair Liability Fair Notional / Asset Fair Liability Fair Derivatives used for hedging Interest rate contracts (d): Fair value hedges $ 22,802 $ 24,153 Cash flow hedges 35,017 $ 14 $ 99 22,875 $ 14 Foreign exchange contracts: Net investment hedges 1,081 30 1,075 $ 22 Total derivatives designated for hedging $ 58,900 $ 14 $ 129 $ 48,103 $ 14 $ 22 Derivatives not used for hedging Derivatives used for mortgage banking activities (e): Interest rate contracts: Swaps $ 26,974 $ 50,511 Futures (f) 2,883 2,841 Mortgage-backed commitments 14,979 $ 144 $ 82 11,288 $ 147 $ 77 Other 4,307 58 16 1,831 11 2 Total interest rate contracts 49,143 202 98 66,471 158 79 Derivatives used for customer-related activities: Interest rate contracts: Swaps 278,447 3,614 1,578 280,125 5,475 1,601 Futures (f) 965 1,235 Mortgage-backed commitments 7,324 36 30 4,178 11 14 Other 22,475 157 123 20,125 193 88 Total interest rate contracts 309,211 3,807 1,731 305,663 5,679 1,703 Commodity contracts: Swaps 7,032 558 533 6,149 350 323 Other 3,247 120 120 2,770 61 61 Total commodity contracts 10,279 678 653 8,919 411 384 Foreign exchange contracts and other 26,183 186 172 26,620 267 243 Total derivatives for customer-related activities 345,673 4,671 2,556 341,202 6,357 2,330 Derivatives used for other risk management activities: Foreign exchange contracts and other 10,836 29 240 10,931 4 325 Total derivatives not designated for hedging $ 405,652 $ 4,902 $ 2,894 $ 418,604 $ 6,519 $ 2,734 Total gross derivatives $ 464,552 $ 4,916 $ 3,023 $ 466,707 $ 6,533 $ 2,756 Less: Impact of legally enforceable master netting agreements 904 904 720 720 Less: Cash collateral received/paid 716 1,295 1,434 1,452 Total derivatives $ 3,296 $ 824 $ 4,379 $ 584 (a) Centrally cleared derivatives are settled in cash daily and result in no derivative asset or derivative liability being recognized on our Consolidated Balance Sheet . (b) Included in Other assets on our Consolidated Balance Sheet. (c) Included in Other liabilities on our Consolidated Balance Sheet. (d) Represents primarily swaps. (e) Includes both residential and commercial mortgage banking activities. (f) Futures contracts are settled in cash daily and result in no derivative asset or derivative liability being recognized on our Consolidated Balance Sheet.
Schedule of Fair Value and Cash Flow Hedges	Further detail regarding gains (losses) related to our fair value and cash flow hedge derivatives is presented in the following table: Table 68: Gains (Losses) Recognized on Fair Value and Cash Flow Hedges in the Consolidated Income Statement (a) (b) Location and Amount of Gains (Losses) Recognized in Income Interest Income Interest Expense Noninterest Income In millions Loans Investment Securities Borrowed Funds Other For the three months ended March 31, 2021 Total amounts on the Consolidated Income Statement $ 1,996 $ 421 $ 95 $ 483 Gains (losses) on fair value hedges recognized on: Hedged items (c) $ (8) $ 646 Derivatives $ 9 $ (664) Amounts related to interest settlements on derivatives $ (1) $ 134 Gains (losses) on cash flow hedges (d): Amount of derivative gains (losses) reclassified from AOCI $ 100 $ 22 $ 13 For the three months ended March 31, 2020 Total amounts on the Consolidated Income Statement $ 2,480 $ 582 $ 314 $ 343 Gains (losses) on fair value hedges recognized on: Hedged items (c) $ 234 $ (1,361) Derivatives $ (231) $ 1,339 Amounts related to interest settlements on derivatives $ (2) $ 59 Gains (losses) on cash flow hedges (d): Amount of derivative gains (losses) reclassified from AOCI $ 42 $ 2 $ 1 (a) For all periods presented, there were no components of derivative gains or losses excluded from the assessment of hedge effectiveness for any of the fair value or cash flow hedge strategies. (b) All cash flow and fair value hedge derivatives were interest rate contracts for the periods presented. (c) Includes an insignificant amount of fair value hedge adjustments related to discontinued hedge relationships.
Schedule of Fair Value Hedges	Detail regarding the impact of fair value hedge accounting on the carrying value of the hedged items is presented in the following table: Table 69: Hedged Items - Fair Value Hedges March 31, 2021 December 31, 2020 In millions Carrying Value of the Hedged Items Cumulative Fair Value Hedge Adjustment included in the Carrying Value of Hedged Items (a) Carrying Value of the Hedged Items Cumulative Fair Value Hedge Adjustment included in the Carrying Value of Hedged Items (a) Investment securities - available for sale (b) $ 2,778 $ 22 $ 2,785 $ 30 Borrowed funds $ 23,936 $ 966 $ 25,797 $ 1,611 (a) Includes $(0.1) billion of fair value hedge adjustments primarily related to discontinued borrowed funds hedge relationships at both March 31, 2021 and December 31, 2020, respectively. (b) Carrying value shown represents amortized cost.
Gains (Losses) on Derivatives Not Designated as Hedging Instruments under GAAP	Further detail regarding the gains (losses) on derivatives not designated in hedging relationships is presented in the following table: Table 70: Gains (Losses) on Derivatives Not Designated for Hedging Three months ended In millions 2021 2020 Derivatives used for mortgage banking activities: Interest rate contracts (a) $ (322) $ 654 Derivatives used for customer-related activities: Interest rate contracts 82 2 Foreign exchange contracts and other 22 11 Gains (losses) from customer-related activities (b) 104 13 Derivatives used for other risk management activities: Foreign exchange contracts and other (b) 48 207 Total gains (losses) from derivatives not designated as hedging instruments $ (170) $ 874 (a) Included in Residential mortgage, Corporate services and Other noninterest income on our Consolidated Income Statement. (b) Included in Other noninterest income on our Consolidated Income Statement.
Derivative Assets And Liabilities Offsetting	Table 71: Derivative Assets and Liabilities Offsetting In millions Amounts Offset on the Securities Collateral Held/Pledged Under Master Netting Agreements Gross Fair Value Cash Net Net Amounts March 31, 2021 Derivative assets Interest rate contracts: Over-the-counter cleared $ 101 $ 101 $ 101 Over-the-counter 3,922 $ 620 $ 700 2,602 $ 263 2,339 Commodity contracts 678 190 8 480 480 Foreign exchange and other contracts 215 94 8 113 1 112 Total derivative assets $ 4,916 $ 904 $ 716 $ 3,296 (a) $ 264 $ 3,032 Derivative liabilities Interest rate contracts: Over-the-counter cleared $ 158 $ 158 $ 158 Over-the-counter 1,770 $ 653 $ 792 325 325 Commodity contracts 653 184 407 62 62 Foreign exchange and other contracts 442 67 96 279 279 Total derivative liabilities $ 3,023 $ 904 $ 1,295 $ 824 (b) $ 824 December 31, 2020 Derivative assets Interest rate contracts: Over-the-counter cleared $ 48 $ 48 $ 48 Over-the-counter 5,803 $ 430 $ 1,426 3,947 $ 531 3,416 Commodity contracts 411 209 4 198 198 Foreign exchange and other contracts 271 81 4 186 1 185 Total derivative assets $ 6,533 $ 720 $ 1,434 $ 4,379 (a) $ 532 $ 3,847 Derivative liabilities Interest rate contracts: Over-the-counter cleared $ 42 $ 42 $ 42 Over-the-counter 1,740 $ 462 $ 1,179 99 99 Commodity contracts 384 182 103 99 99 Foreign exchange and other contracts 590 76 170 344 344 Total derivative liabilities $ 2,756 $ 720 $ 1,452 $ 584 (b) $ 584 (a) Represents the net amount of derivative assets included in Other assets on our Consolidated Balance Sheet. (b) Represents the net amount of derivative liabilities included in Other liabilities on our Consolidated Balance Sheet.

Segment Reporting (Tables)

Segment Reporting (Tables)	3 Months Ended
	Mar. 31, 2021
Segment Reporting [Abstract]
Results of Businesses	Table 72: Results of Businesses Three months ended March 31 Retail Banking Corporate & Asset Other Consolidated (a) 2021 Income Statement Net interest income $ 1,362 $ 991 $ 93 $ (98) $ 2,348 Noninterest income 654 807 229 182 1,872 Total revenue 2,016 1,798 322 84 4,220 Provision for (recapture of) credit losses (257) (282) (9) (3) (551) Depreciation and amortization 63 47 4 120 234 Other noninterest expense 1,413 664 198 65 2,340 Income (loss) from continuing operations before income taxes (benefit) and 797 1,369 129 (98) 2,197 Income taxes (benefit) from continuing operations 183 308 30 (150) 371 Net income from continuing operations 614 1,061 99 52 1,826 Less: Net income attributable to noncontrolling interests 7 3 10 Net income from continuing operations excluding noncontrolling interests $ 607 $ 1,058 $ 99 $ 52 $ 1,816 Average Assets $ 92,891 $ 170,531 $ 8,873 $ 195,925 $ 468,220 2020 Income Statement Net interest income $ 1,456 $ 950 $ 88 $ 17 $ 2,511 Noninterest income 788 694 204 139 1,825 Total revenue 2,244 1,644 292 156 4,336 Provision for credit losses 445 458 3 8 914 Depreciation and amortization 57 48 11 124 240 Other noninterest expense 1,471 674 208 (50) 2,303 Income from continuing operations before income taxes (benefit) and 271 464 70 74 879 Income taxes (benefit) from continuing operations 62 94 16 (52) 120 Net income from continuing operations 209 370 54 126 759 Less: Net income attributable to noncontrolling interests 8 (1) 7 Net income from continuing operations excluding noncontrolling interests $ 201 $ 370 $ 54 $ 127 $ 752 Average Assets $ 97,062 $ 172,502 $ 7,801 $ 135,071 $ 412,436 (a) There were no material intersegment revenues for the three months ended March 31, 2021 and 2020.

Fee-Based Revenue from Contra_2

Fee-Based Revenue from Contracts with Customers (Tables)	3 Months Ended
	Mar. 31, 2021
Revenue from Contract with Customer [Abstract]
Retail Banking Noninterest Income Disaggregation	Table 73: Retail Banking Noninterest Income Disaggregation Three months ended In millions 2021 2020 Product Debit card fees $ 138 $ 129 Deposit account fees 108 158 Brokerage fees 102 93 Net credit card fees (a) 47 41 Merchant services 32 49 Other 57 56 Total in-scope noninterest income by product $ 484 $ 526 Reconciliation to total Retail Banking noninterest income Total in-scope noninterest income $ 484 $ 526 Total out-of-scope noninterest income (b) 170 262 Total Retail Banking noninterest income $ 654 $ 788 (a) Net credit card fees consists of interchange fees of $120 million and $118 million and credit card reward costs of $73 million and $77 million for the three months ended March 31, 2021 and 2020, respectively. (b) Out-of-scope noninterest income includes revenue streams that fall under the scope of other accounting and disclosure requirements outside of Topic 606.
Corporate & Institutional Banking Noninterest Income Disaggregation	Table 74: Corporate & Institutional Banking Noninterest Income Disaggregation Three months ended In millions 2021 2020 Product Treasury management fees $ 235 $ 216 Capital markets fees 192 175 Commercial mortgage banking activities 31 26 Other 29 20 Total in-scope noninterest income by product $ 487 $ 437 Reconciliation to total Corporate & Institutional Banking noninterest income Total in-scope noninterest income $ 487 $ 437 Total out-of-scope noninterest income (a) 320 257 Total Corporate & Institutional Banking noninterest income $ 807 $ 694 (a) Out-of-scope noninterest income includes revenue streams that fall under the scope of other accounting and disclosure requirements outside of Topic 606.
Asset Management Group Noninterest Income Disaggregation	Table 75: Asset Management Group Noninterest Income Disaggregation Three months ended In millions 2021 2020 Customer Type Personal $ 173 $ 150 Institutional 53 51 Total in-scope noninterest income by customer type $ 226 $ 201 Reconciliation to Asset Management Group noninterest income Total in-scope noninterest income $ 226 $ 201 Total out-of-scope noninterest income (a) 3 3 Total Asset Management Group noninterest income $ 229 $ 204 (a) Out-of-scope noninterest income includes revenue streams that fall under the scope of other accounting and disclosure requirements outside of Topic 606.

Acquisition and Divestiture A_3

Acquisition and Divestiture Activity (Narrative) (Details) - USD ($) $ / shares in Units, $ in Millions	Nov. 16, 2020	May 31, 2020	Mar. 31, 2020	Jun. 30, 2021
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Cash provided by operating activities of discontinued operations			$ 126
Discontinued Operations, Disposed of by Sale | BlackRock, Inc.
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Discontinued operations, number of shares contributed		500,000
Registered Secondary Offering | Discontinued Operations, Disposed of by Sale | BlackRock, Inc.
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Sale of stock, number of shares issued in transaction (in shares)		31,600,000
Sale of stock, price per share (in dollars per share)		$ 420
Sale of stock, consideration received on transaction		$ 14,200
Payments of stock issuance costs		200
Gain (loss) on disposition of business		$ 4,300
BlackRock, Inc. | Discontinued Operations, Disposed of by Sale | BlackRock, Inc.
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Sale of stock, number of shares issued in transaction (in shares)		2,650,000
Sale of stock, price per share (in dollars per share)		$ 414.96
BBVA USA Bancshares, Inc.
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Business combination, consideration transferred	$ 11,600
BBVA USA Bancshares, Inc. | Forecast
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Business combination, recognized identifiable assets acquired and liabilities assumed, assets				$ 102,000
Business combination, recognized identifiable assets acquired and liabilities assumed, deposits				86,000
Business combination, recognized identifiable assets acquired and liabilities assumed, loans				$ 66,000

Acquisition and Divestiture A_4

Acquisition and Divestiture Activity (Consolidated Income Statement - Discontinued Operations) (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2021	Mar. 31, 2020
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Income from discontinued operations before income taxes and noncontrolling interests		$ 181
Income taxes		25
Net income from discontinued operations		156
BlackRock, Inc. | Discontinued Operations, Disposed of by Sale
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Noninterest income		181
Total revenue		181
Income from discontinued operations before income taxes and noncontrolling interests		181
Income taxes		25
Net income from discontinued operations		$ 156

Investment Securities (Narrativ

Investment Securities (Narrative) (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2021	Mar. 31, 2020
Schedule of Investments [Line Items]
Net unsettled investment purchases	$ 1,800	$ 400
Investment securities, allowance for credit loss	108
Provision for credit losses on investment securities	26
Federal National Mortgage Association Certificates and Obligations (FNMA)
Schedule of Investments [Line Items]
Debt securities amortized cost amount of debt securities exceeds 10 percent of shareholders equity	30,800
Fair value of debt securities of a single issuer that exceeeds 10 percent of shareholders equity	31,700
Federal Home Loan Mortgage Corporation (FHLMC) Insured Loans
Schedule of Investments [Line Items]
Debt securities amortized cost amount of debt securities exceeds 10 percent of shareholders equity	18,900
Fair value of debt securities of a single issuer that exceeeds 10 percent of shareholders equity	$ 18,800

Investment Securities (Summary)

Investment Securities (Summary) (Details) - USD ($) $ in Millions	3 Months Ended	12 Months Ended
	Mar. 31, 2021	Dec. 31, 2020
Debt Securities, Available-for-sale and Held-to-maturity [Abstract]
Securities available for sale debt securities, amortized cost	$ 94,806	$ 84,172
Securities available for sale debt securities, unrealized gains	2,480	3,302
Securities available for sale debt securities, unrealized losses	(487)	(116)
Investment securities – available for sale	96,799	87,358
Held to maturity securities, amortized cost	1,456	1,441
Held-to-maturity securities, unrealized gains	110	167
Held-to-maturity securities, unrealized losses	(7)	(3)
Held-to-maturity securities, fair value	1,559	1,605
Debt securities, available-for-sale, accrued interest	244	238
Debt securities, available-for-sale, allowance for credit loss	$ 105	$ 79
Credit Concentration Risk | Fitch, AAA or AA Rating
Debt Securities, Held-to-maturity [Abstract]
Concentration risk, percentage	85.00%	85.00%
U.S. Treasury and government agencies
Debt Securities, Available-for-sale and Held-to-maturity [Abstract]
Securities available for sale debt securities, amortized cost	$ 25,670	$ 19,821
Securities available for sale debt securities, unrealized gains	546	903
Securities available for sale debt securities, unrealized losses	(266)	(13)
Investment securities – available for sale	25,950	20,711
Held to maturity securities, amortized cost	800	795
Held-to-maturity securities, unrealized gains	74	125
Held-to-maturity securities, fair value	874	920
Residential mortgage-backed | Mortgage-backed Securities Agency
Debt Securities, Available-for-sale and Held-to-maturity [Abstract]
Securities available for sale debt securities, amortized cost	50,499	47,355
Securities available for sale debt securities, unrealized gains	1,227	1,566
Securities available for sale debt securities, unrealized losses	(172)	(10)
Investment securities – available for sale	51,554	48,911
Residential mortgage-backed | Mortgage-backed Securities Non-agency
Debt Securities, Available-for-sale and Held-to-maturity [Abstract]
Securities available for sale debt securities, amortized cost	1,181	1,272
Securities available for sale debt securities, unrealized gains	252	243
Securities available for sale debt securities, unrealized losses	(9)	(14)
Investment securities – available for sale	1,424	1,501
Commercial mortgage-backed | Mortgage-backed Securities Agency
Debt Securities, Available-for-sale and Held-to-maturity [Abstract]
Securities available for sale debt securities, amortized cost	2,219	2,571
Securities available for sale debt securities, unrealized gains	68	119
Securities available for sale debt securities, unrealized losses	(3)	(2)
Investment securities – available for sale	2,284	2,688
Commercial mortgage-backed | Mortgage-backed Securities Non-agency
Debt Securities, Available-for-sale and Held-to-maturity [Abstract]
Securities available for sale debt securities, amortized cost	4,191	3,678
Securities available for sale debt securities, unrealized gains	60	78
Securities available for sale debt securities, unrealized losses	(15)	(67)
Investment securities – available for sale	4,236	3,689
Asset-backed
Debt Securities, Available-for-sale and Held-to-maturity [Abstract]
Securities available for sale debt securities, amortized cost	5,969	5,060
Securities available for sale debt securities, unrealized gains	89	100
Securities available for sale debt securities, unrealized losses	(17)	(10)
Investment securities – available for sale	6,041	5,150
Other
Debt Securities, Available-for-sale and Held-to-maturity [Abstract]
Securities available for sale debt securities, amortized cost	5,077	4,415
Securities available for sale debt securities, unrealized gains	238	293
Securities available for sale debt securities, unrealized losses	(5)
Investment securities – available for sale	5,310	4,708
Held to maturity securities, amortized cost	656	646
Held-to-maturity securities, unrealized gains	36	42
Held-to-maturity securities, unrealized losses	(7)	(3)
Held-to-maturity securities, fair value	$ 685	$ 685

Investment Securities (Gross Un

Investment Securities (Gross Unrealized Loss and Fair Value of Securities Available for Sale Without an Allowance for Credit Losses) (Details) - USD ($) $ in Millions	Mar. 31, 2021	Dec. 31, 2020
Debt Securities, Available-for-sale [Line Items]
Debt securities, available-for-sale, continuous unrealized loss position, less than 12 months, accumulated loss	$ (455)	$ (42)
Debt securities, available-for-sale, continuous unrealized loss position, less than 12 months - fair value	34,446	5,185
Debt securities, available-for-sale, continuous unrealized loss position, 12 months or longer, accumulated loss	(22)	(27)
Debt securities, available-for-sale, continuous unrealized loss position, 12 months or longer - fair value	2,014	1,724
Debt securities, available-for-sale, unrealized loss position, accumulated loss	(477)	(69)
Debt securities, available-for-sale, unrealized loss position	36,460	6,909
U.S. Treasury and government agencies
Debt Securities, Available-for-sale [Line Items]
Debt securities, available-for-sale, continuous unrealized loss position, less than 12 months, accumulated loss	(266)	(13)
Debt securities, available-for-sale, continuous unrealized loss position, less than 12 months - fair value	12,798	603
Debt securities, available-for-sale, unrealized loss position, accumulated loss	(266)	(13)
Debt securities, available-for-sale, unrealized loss position	12,798	603
Residential mortgage-backed | Mortgage-backed Securities Agency
Debt Securities, Available-for-sale [Line Items]
Debt securities, available-for-sale, continuous unrealized loss position, less than 12 months, accumulated loss	(170)	(8)
Debt securities, available-for-sale, continuous unrealized loss position, less than 12 months - fair value	19,019	3,152
Debt securities, available-for-sale, continuous unrealized loss position, 12 months or longer, accumulated loss	(2)	(2)
Debt securities, available-for-sale, continuous unrealized loss position, 12 months or longer - fair value	75	82
Debt securities, available-for-sale, unrealized loss position, accumulated loss	(172)	(10)
Debt securities, available-for-sale, unrealized loss position	19,094	3,234
Residential mortgage-backed | Mortgage-backed Securities Non-agency
Debt Securities, Available-for-sale [Line Items]
Debt securities, available-for-sale, continuous unrealized loss position, less than 12 months, accumulated loss		(7)
Debt securities, available-for-sale, continuous unrealized loss position, less than 12 months - fair value		119
Debt securities, available-for-sale, continuous unrealized loss position, 12 months or longer, accumulated loss	(9)	(7)
Debt securities, available-for-sale, continuous unrealized loss position, 12 months or longer - fair value	165	73
Debt securities, available-for-sale, unrealized loss position, accumulated loss	(9)	(14)
Debt securities, available-for-sale, unrealized loss position	165	192
Commercial mortgage-backed | Mortgage-backed Securities Agency
Debt Securities, Available-for-sale [Line Items]
Debt securities, available-for-sale, continuous unrealized loss position, less than 12 months, accumulated loss	(2)
Debt securities, available-for-sale, continuous unrealized loss position, less than 12 months - fair value	190
Debt securities, available-for-sale, continuous unrealized loss position, 12 months or longer, accumulated loss	(1)	(2)
Debt securities, available-for-sale, continuous unrealized loss position, 12 months or longer - fair value	69	149
Debt securities, available-for-sale, unrealized loss position, accumulated loss	(3)	(2)
Debt securities, available-for-sale, unrealized loss position	259	149
Commercial mortgage-backed | Mortgage-backed Securities Non-agency
Debt Securities, Available-for-sale [Line Items]
Debt securities, available-for-sale, continuous unrealized loss position, less than 12 months, accumulated loss	(1)	(13)
Debt securities, available-for-sale, continuous unrealized loss position, less than 12 months - fair value	275	972
Debt securities, available-for-sale, continuous unrealized loss position, 12 months or longer, accumulated loss	(5)	(7)
Debt securities, available-for-sale, continuous unrealized loss position, 12 months or longer - fair value	911	714
Debt securities, available-for-sale, unrealized loss position, accumulated loss	(6)	(20)
Debt securities, available-for-sale, unrealized loss position	1,186	1,686
Asset-backed
Debt Securities, Available-for-sale [Line Items]
Debt securities, available-for-sale, continuous unrealized loss position, less than 12 months, accumulated loss	(12)	(1)
Debt securities, available-for-sale, continuous unrealized loss position, less than 12 months - fair value	1,707	339
Debt securities, available-for-sale, continuous unrealized loss position, 12 months or longer, accumulated loss	(5)	(9)
Debt securities, available-for-sale, continuous unrealized loss position, 12 months or longer - fair value	794	706
Debt securities, available-for-sale, unrealized loss position, accumulated loss	(17)	(10)
Debt securities, available-for-sale, unrealized loss position	2,501	$ 1,045
Other
Debt Securities, Available-for-sale [Line Items]
Debt securities, available-for-sale, continuous unrealized loss position, less than 12 months, accumulated loss	(4)
Debt securities, available-for-sale, continuous unrealized loss position, less than 12 months - fair value	457
Debt securities, available-for-sale, unrealized loss position, accumulated loss	(4)
Debt securities, available-for-sale, unrealized loss position	$ 457

Investment Securities (Gains (L

Investment Securities (Gains (Losses) on Sales of Securities Available for Sale) (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2021	Mar. 31, 2020
Investment Securities Disclosure [Abstract]
Gross Gains	$ 159	$ 184
Gross Losses	(134)	(2)
Net Gains	25	182
Tax Expense	$ 5	$ 38

Investment Securities (Contract

Investment Securities (Contractual Maturity of Securities) (Details) - USD ($) $ in Millions	Mar. 31, 2021	Dec. 31, 2020
Debt Securities [Line Items]
Available for Sale Securities, Amortized Cost, 1 year or less	$ 3,506
Available for Sale Securities, Amortized Cost, After 1 year through 5 years	20,264
Available for Sale Securities, Amortized Cost, After 5 years through 10 years	12,305
Available for Sale Securities, Amortized Cost, After 10 years	58,731
Securities available for sale debt securities, amortized cost	94,806	$ 84,172
Available-for-sale Securities, Fair value, 1 year or less	3,529
Available-for-sale Securities, Fair value, After 1 year through 5 years	20,700
Available-for-sale Securities, Fair value, After 5 years through 10 years	12,405
Available-for-sale Securities, Fair value, After 10 years	60,165
Available-for-sale securities, fair value	$ 96,799	87,358
Weighted-average yield, GAAP basis, available for sale securities	2.25%
Held to Maturity Securities, Amortized Cost, 1 year or less	$ 71
Held to Maturity Securities, Amortized Cost, After 1 year through 5 years	595
Held to Maturity Securities, Amortized Cost, After 5 years through 10 years	424
Held to Maturity Securities, Amortized Cost, After 10 years	366
Held to maturity securities, amortized cost	1,456	1,441
Held-to-maturity Securities, Fair Value, 1 year or less	72
Held-to-maturity Securities, Fair Value, After 1 year through 5 years	626
Held-to-maturity Securities, Fair Value, After 5 years through 10 years	490
Held-to-maturity Securities, Fair Value, After 10 years	371
Held-to-maturity Securities, Debt Maturities, Fair Value, Total	$ 1,559	$ 1,605
Weighted-average yield, GAAP basis, held to maturity securities	3.28%
1 Year or Less
Debt Securities [Line Items]
Weighted-average yield, GAAP basis, available for sale securities	1.68%
Weighted-average yield, GAAP basis, held to maturity securities	3.70%
After 1 Year through 5 Years
Debt Securities [Line Items]
Weighted-average yield, GAAP basis, available for sale securities	1.58%
Weighted-average yield, GAAP basis, held to maturity securities	3.21%
After 5 Years through 10 Years
Debt Securities [Line Items]
Weighted-average yield, GAAP basis, available for sale securities	1.72%
Weighted-average yield, GAAP basis, held to maturity securities	3.93%
After 10 Years
Debt Securities [Line Items]
Weighted-average yield, GAAP basis, available for sale securities	2.62%
Weighted-average yield, GAAP basis, held to maturity securities	2.48%
U.S. Treasury and government agencies
Debt Securities [Line Items]
Available for Sale Securities, Amortized Cost, 1 year or less	$ 2,685
Available for Sale Securities, Amortized Cost, After 1 year through 5 years	15,164
Available for Sale Securities, Amortized Cost, After 5 years through 10 years	6,237
Available for Sale Securities, Amortized Cost, After 10 years	1,584
Securities available for sale debt securities, amortized cost	25,670
Held to Maturity Securities, Amortized Cost, After 1 year through 5 years	199
Held to Maturity Securities, Amortized Cost, After 5 years through 10 years	315
Held to Maturity Securities, Amortized Cost, After 10 years	286
Held to maturity securities, amortized cost	800
Residential mortgage-backed | Mortgage-backed Securities Agency
Debt Securities [Line Items]
Available for Sale Securities, Amortized Cost, 1 year or less	2
Available for Sale Securities, Amortized Cost, After 1 year through 5 years	205
Available for Sale Securities, Amortized Cost, After 5 years through 10 years	2,248
Available for Sale Securities, Amortized Cost, After 10 years	48,044
Securities available for sale debt securities, amortized cost	50,499
Residential mortgage-backed | Mortgage-backed Securities Non-agency
Debt Securities [Line Items]
Available for Sale Securities, Amortized Cost, After 5 years through 10 years	2
Available for Sale Securities, Amortized Cost, After 10 years	1,179
Securities available for sale debt securities, amortized cost	1,181
Commercial mortgage-backed | Mortgage-backed Securities Agency
Debt Securities [Line Items]
Available for Sale Securities, Amortized Cost, After 1 year through 5 years	545
Available for Sale Securities, Amortized Cost, After 5 years through 10 years	662
Available for Sale Securities, Amortized Cost, After 10 years	1,012
Securities available for sale debt securities, amortized cost	2,219
Commercial mortgage-backed | Mortgage-backed Securities Non-agency
Debt Securities [Line Items]
Available for Sale Securities, Amortized Cost, After 1 year through 5 years	202
Available for Sale Securities, Amortized Cost, After 5 years through 10 years	210
Available for Sale Securities, Amortized Cost, After 10 years	3,779
Securities available for sale debt securities, amortized cost	4,191
Asset-backed
Debt Securities [Line Items]
Available for Sale Securities, Amortized Cost, 1 year or less	86
Available for Sale Securities, Amortized Cost, After 1 year through 5 years	2,322
Available for Sale Securities, Amortized Cost, After 5 years through 10 years	1,274
Available for Sale Securities, Amortized Cost, After 10 years	2,287
Securities available for sale debt securities, amortized cost	5,969
Other
Debt Securities [Line Items]
Available for Sale Securities, Amortized Cost, 1 year or less	733
Available for Sale Securities, Amortized Cost, After 1 year through 5 years	1,826
Available for Sale Securities, Amortized Cost, After 5 years through 10 years	1,672
Available for Sale Securities, Amortized Cost, After 10 years	846
Securities available for sale debt securities, amortized cost	5,077
Held to Maturity Securities, Amortized Cost, 1 year or less	71
Held to Maturity Securities, Amortized Cost, After 1 year through 5 years	396
Held to Maturity Securities, Amortized Cost, After 5 years through 10 years	109
Held to Maturity Securities, Amortized Cost, After 10 years	80
Held to maturity securities, amortized cost	$ 656

Investment Securities (Fair Val

Investment Securities (Fair Value of Securities Pledged and Accepted as Collateral) (Details) - USD ($) $ in Millions	Mar. 31, 2021	Dec. 31, 2020
Investment Securities Disclosure [Abstract]
Pledged to others	$ 21,794	$ 22,841
Permitted by contract or custom to sell or repledge	817	683
Permitted amount repledged to others	$ 817	$ 683

Loans and Related Allowance f_3

Loans and Related Allowance for Credit Losses (Analysis of Loan Portfolio) (Details) - USD ($) $ in Millions	Mar. 31, 2021	Dec. 31, 2020
Financing Receivable, Past Due [Line Items]
Total loans, before allowance for credit loss	$ 237,013	$ 241,928
Percentage of total loans, past due	100.00%	100.00%
Unearned income, unamortized deferred fees and costs on originated loans, and premiums or discounts on purchased loans	$ 1,400	$ 1,300
Collateral Dependent
Financing Receivable, Past Due [Line Items]
Total loans, before allowance for credit loss	1,400	1,500
Other Assets
Financing Receivable, Past Due [Line Items]
Accrued interest on loan portfolio	700	700
Current or Less Than 30 Days Past Due
Financing Receivable, Past Due [Line Items]
Total loans, past due	$ 233,156	$ 237,716
Percentage of total loans, past due	98.38%	98.27%
30-59 Days Past Due
Financing Receivable, Past Due [Line Items]
Total loans, past due	$ 485	$ 620
Percentage of total loans, past due	0.20%	0.26%
60-89 Days Past Due
Financing Receivable, Past Due [Line Items]
Total loans, past due	$ 182	$ 234
Percentage of total loans, past due	0.08%	0.10%
90 Days Or More Past Due
Financing Receivable, Past Due [Line Items]
Total loans, past due	$ 479	$ 509
Percentage of total loans, past due	0.20%	0.21%
Total Past Due
Financing Receivable, Past Due [Line Items]
Total loans, past due	$ 1,146	$ 1,363
Percentage of total loans, past due	0.48%	0.56%
Nonperforming Loans
Financing Receivable, Past Due [Line Items]
Total loans, before allowance for credit loss	$ 2,138	$ 2,286
Percentage of total loans, past due	0.90%	0.94%
Fair Value Option Nonaccrual Loans
Financing Receivable, Past Due [Line Items]
Nonaccrual loans	$ 573	$ 563
Percentage of total loans, nonaccrual, past due	0.24%	0.23%
Total commercial
Financing Receivable, Past Due [Line Items]
Total loans, before allowance for credit loss	$ 164,506	$ 167,203
Total commercial | Current or Less Than 30 Days Past Due
Financing Receivable, Past Due [Line Items]
Total loans, past due	163,566	166,075
Total commercial | 30-59 Days Past Due
Financing Receivable, Past Due [Line Items]
Total loans, past due	113	143
Total commercial | 60-89 Days Past Due
Financing Receivable, Past Due [Line Items]
Total loans, past due	15	32
Total commercial | 90 Days Or More Past Due
Financing Receivable, Past Due [Line Items]
Total loans, past due	63	30
Total commercial | Total Past Due
Financing Receivable, Past Due [Line Items]
Total loans, past due	191	205
Total commercial | Nonperforming Loans
Financing Receivable, Past Due [Line Items]
Total loans, before allowance for credit loss	749	923
Total consumer
Financing Receivable, Past Due [Line Items]
Total loans, before allowance for credit loss	72,507	74,725
Total consumer | Current or Less Than 30 Days Past Due
Financing Receivable, Past Due [Line Items]
Total loans, past due	69,590	71,641
Total consumer | 30-59 Days Past Due
Financing Receivable, Past Due [Line Items]
Total loans, past due	372	477
Total consumer | 60-89 Days Past Due
Financing Receivable, Past Due [Line Items]
Total loans, past due	167	202
Total consumer | 90 Days Or More Past Due
Financing Receivable, Past Due [Line Items]
Total loans, past due	416	479
Total consumer | Total Past Due
Financing Receivable, Past Due [Line Items]
Total loans, past due	955	1,158
Total consumer | Nonperforming Loans
Financing Receivable, Past Due [Line Items]
Total loans, before allowance for credit loss	1,389	1,363
Total consumer | Fair Value Option Nonaccrual Loans
Financing Receivable, Past Due [Line Items]
Nonaccrual loans	573	563
Commercial and industrial | Total commercial
Financing Receivable, Past Due [Line Items]
Total loans, before allowance for credit loss	129,798	132,073
Commercial and industrial | Total commercial | Current or Less Than 30 Days Past Due
Financing Receivable, Past Due [Line Items]
Total loans, past due	129,130	131,245
Commercial and industrial | Total commercial | 30-59 Days Past Due
Financing Receivable, Past Due [Line Items]
Total loans, past due	80	106
Commercial and industrial | Total commercial | 60-89 Days Past Due
Financing Receivable, Past Due [Line Items]
Total loans, past due	13	26
Commercial and industrial | Total commercial | 90 Days Or More Past Due
Financing Receivable, Past Due [Line Items]
Total loans, past due	63	30
Commercial and industrial | Total commercial | Total Past Due
Financing Receivable, Past Due [Line Items]
Total loans, past due	156	162
Commercial and industrial | Total commercial | Nonperforming Loans
Financing Receivable, Past Due [Line Items]
Total loans, before allowance for credit loss	512	666
Commercial real estate | Total commercial
Financing Receivable, Past Due [Line Items]
Total loans, before allowance for credit loss	28,319	28,716
Commercial real estate | Total commercial | Current or Less Than 30 Days Past Due
Financing Receivable, Past Due [Line Items]
Total loans, past due	28,085	28,485
Commercial real estate | Total commercial | 30-59 Days Past Due
Financing Receivable, Past Due [Line Items]
Total loans, past due	12	6
Commercial real estate | Total commercial | 60-89 Days Past Due
Financing Receivable, Past Due [Line Items]
Total loans, past due	1	1
Commercial real estate | Total commercial | Total Past Due
Financing Receivable, Past Due [Line Items]
Total loans, past due	13	7
Commercial real estate | Total commercial | Nonperforming Loans
Financing Receivable, Past Due [Line Items]
Total loans, before allowance for credit loss	221	224
Equipment lease financing | Total commercial
Financing Receivable, Past Due [Line Items]
Total loans, before allowance for credit loss	6,389	6,414
Equipment lease financing | Total commercial | Current or Less Than 30 Days Past Due
Financing Receivable, Past Due [Line Items]
Total loans, past due	6,351	6,345
Equipment lease financing | Total commercial | 30-59 Days Past Due
Financing Receivable, Past Due [Line Items]
Total loans, past due	21	31
Equipment lease financing | Total commercial | 60-89 Days Past Due
Financing Receivable, Past Due [Line Items]
Total loans, past due	1	5
Equipment lease financing | Total commercial | Total Past Due
Financing Receivable, Past Due [Line Items]
Total loans, past due	22	36
Equipment lease financing | Total commercial | Nonperforming Loans
Financing Receivable, Past Due [Line Items]
Total loans, before allowance for credit loss	16	33
Home equity
Financing Receivable, Past Due [Line Items]
Total loans, before allowance for credit loss	23,493	24,088
Home equity | Total consumer
Financing Receivable, Past Due [Line Items]
Total loans, before allowance for credit loss	23,493	24,088
Home equity | Total consumer | Current or Less Than 30 Days Past Due
Financing Receivable, Past Due [Line Items]
Total loans, past due	22,706	23,318
Home equity | Total consumer | 30-59 Days Past Due
Financing Receivable, Past Due [Line Items]
Total loans, past due	43	50
Home equity | Total consumer | 60-89 Days Past Due
Financing Receivable, Past Due [Line Items]
Total loans, past due	20	21
Home equity | Total consumer | Total Past Due
Financing Receivable, Past Due [Line Items]
Total loans, past due	63	71
Home equity | Total consumer | Nonperforming Loans
Financing Receivable, Past Due [Line Items]
Total loans, before allowance for credit loss	656	645
Home equity | Total consumer | Fair Value Option Nonaccrual Loans
Financing Receivable, Past Due [Line Items]
Nonaccrual loans	68	54
Residential real estate
Financing Receivable, Past Due [Line Items]
Total loans, before allowance for credit loss	22,418	22,560
Residential real estate | Government insured or guaranteed loans
Financing Receivable, Past Due [Line Items]
Total loans, before allowance for credit loss	930	922
Residential real estate | Total consumer
Financing Receivable, Past Due [Line Items]
Total loans, before allowance for credit loss	22,418	22,560
Residential real estate | Total consumer | Current or Less Than 30 Days Past Due
Financing Receivable, Past Due [Line Items]
Total loans, past due	20,862	20,945
Residential real estate | Total consumer | 30-59 Days Past Due
Financing Receivable, Past Due [Line Items]
Total loans, past due	162	181
Residential real estate | Total consumer | 60-89 Days Past Due
Financing Receivable, Past Due [Line Items]
Total loans, past due	73	78
Residential real estate | Total consumer | 90 Days Or More Past Due
Financing Receivable, Past Due [Line Items]
Total loans, past due	275	319
Residential real estate | Total consumer | Total Past Due
Financing Receivable, Past Due [Line Items]
Total loans, past due	510	578
Residential real estate | Total consumer | Total Past Due | Government insured or guaranteed loans
Financing Receivable, Past Due [Line Items]
Total loans, before allowance for credit loss	400	400
Residential real estate | Total consumer | Nonperforming Loans
Financing Receivable, Past Due [Line Items]
Total loans, before allowance for credit loss	541	528
Residential real estate | Total consumer | Fair Value Option Nonaccrual Loans
Financing Receivable, Past Due [Line Items]
Nonaccrual loans	505	509
Automobile | Total consumer
Financing Receivable, Past Due [Line Items]
Total loans, before allowance for credit loss	13,584	14,218
Automobile | Total consumer | Current or Less Than 30 Days Past Due
Financing Receivable, Past Due [Line Items]
Total loans, past due	13,305	13,863
Automobile | Total consumer | 30-59 Days Past Due
Financing Receivable, Past Due [Line Items]
Total loans, past due	76	134
Automobile | Total consumer | 60-89 Days Past Due
Financing Receivable, Past Due [Line Items]
Total loans, past due	19	34
Automobile | Total consumer | 90 Days Or More Past Due
Financing Receivable, Past Due [Line Items]
Total loans, past due	6	12
Automobile | Total consumer | Total Past Due
Financing Receivable, Past Due [Line Items]
Total loans, past due	101	180
Automobile | Total consumer | Nonperforming Loans
Financing Receivable, Past Due [Line Items]
Total loans, before allowance for credit loss	178	175
Credit card | Total consumer
Financing Receivable, Past Due [Line Items]
Total loans, before allowance for credit loss	5,675	6,215
Credit card | Total consumer | Current or Less Than 30 Days Past Due
Financing Receivable, Past Due [Line Items]
Total loans, past due	5,561	6,074
Credit card | Total consumer | 30-59 Days Past Due
Financing Receivable, Past Due [Line Items]
Total loans, past due	31	43
Credit card | Total consumer | 60-89 Days Past Due
Financing Receivable, Past Due [Line Items]
Total loans, past due	24	30
Credit card | Total consumer | 90 Days Or More Past Due
Financing Receivable, Past Due [Line Items]
Total loans, past due	52	60
Credit card | Total consumer | Total Past Due
Financing Receivable, Past Due [Line Items]
Total loans, past due	107	133
Credit card | Total consumer | Nonperforming Loans
Financing Receivable, Past Due [Line Items]
Total loans, before allowance for credit loss	7	8
Education
Financing Receivable, Past Due [Line Items]
Total loans, before allowance for credit loss	2,842	2,946
Education | Total consumer
Financing Receivable, Past Due [Line Items]
Total loans, before allowance for credit loss	2,842	2,946
Education | Total consumer | Current or Less Than 30 Days Past Due
Financing Receivable, Past Due [Line Items]
Total loans, past due	2,692	2,785
Education | Total consumer | 30-59 Days Past Due
Financing Receivable, Past Due [Line Items]
Total loans, past due	49	55
Education | Total consumer | 60-89 Days Past Due
Financing Receivable, Past Due [Line Items]
Total loans, past due	25	29
Education | Total consumer | 90 Days Or More Past Due
Financing Receivable, Past Due [Line Items]
Total loans, past due	76	77
Education | Total consumer | Total Past Due
Financing Receivable, Past Due [Line Items]
Total loans, past due	150	161
Education | Total consumer | Total Past Due | Government insured or guaranteed loans
Financing Receivable, Past Due [Line Items]
Total loans, before allowance for credit loss	100	200
Other consumer
Financing Receivable, Past Due [Line Items]
Total loans, before allowance for credit loss	4,495	4,698
Other consumer | Total consumer
Financing Receivable, Past Due [Line Items]
Total loans, before allowance for credit loss	4,495	4,698
Other consumer | Total consumer | Current or Less Than 30 Days Past Due
Financing Receivable, Past Due [Line Items]
Total loans, past due	4,464	4,656
Other consumer | Total consumer | 30-59 Days Past Due
Financing Receivable, Past Due [Line Items]
Total loans, past due	11	14
Other consumer | Total consumer | 60-89 Days Past Due
Financing Receivable, Past Due [Line Items]
Total loans, past due	6	10
Other consumer | Total consumer | 90 Days Or More Past Due
Financing Receivable, Past Due [Line Items]
Total loans, past due	7	11
Other consumer | Total consumer | Total Past Due
Financing Receivable, Past Due [Line Items]
Total loans, past due	24	35
Other consumer | Total consumer | Nonperforming Loans
Financing Receivable, Past Due [Line Items]
Total loans, before allowance for credit loss	$ 7	$ 7

Loans and Related Allowance f_4

Loans and Related Allowance for Credit Losses (Narrative) (Details) $ in Millions	3 Months Ended
	Mar. 31, 2021USD ($)portfolio_segment	Mar. 31, 2020USD ($)	Dec. 31, 2020USD ($)	Dec. 31, 2019USD ($)
Number of portfolio segments | portfolio_segment	2
Allowance for credit loss	$ 5,221	$ 4,394	$ 5,945	$ 3,060
Increase (decrease) in allowance for credit loss	(700)	1,300
Performing Financial Instruments
Troubled debt restructurings (TDRs)	700		700
TDRs
Amortized Cost - Subsequently Defaulted TDRs	15	$ 29
TDRs | Nonperforming loans
Troubled debt restructurings (TDRs)	900		900
Federal Reserve Bank
Loans pledged as collateral for the ability to borrow	28,600		30,100
Federal Home Loan Bank
Loans pledged as collateral for the ability to borrow	$ 66,900		$ 69,000

Loans and Related Allowance f_5

Loans and Related Allowance for Credit Losses (Nonperforming Assets) (Details) - USD ($) $ in Millions	Mar. 31, 2021	Dec. 31, 2020
Nonperforming loans, without allowance for credit losses	$ 700	$ 800
Minimum
Threshold period of financing receivable past due, writeoff	120 days
Maximum
Threshold period of financing receivable past due, writeoff	180 days
Nonperforming loans
Nonaccrual loans	$ 2,138	2,286
OREO and foreclosed assets	41	51
Total nonperforming assets	$ 2,179	$ 2,337
Nonperforming loans to total loans	0.90%	0.94%
Nonperforming assets to total loans, OREO and foreclosed assets	0.92%	0.97%
Nonperforming assets to total assets	0.46%	0.50%
Total commercial | Nonperforming loans
Nonaccrual loans	$ 749	$ 923
Total consumer | Nonperforming loans
Nonaccrual loans	$ 1,389	$ 1,363

Loans and Related Allowance f_6

Loans and Related Allowance for Credit Losses (Commercial Lending Asset Quality Indicators) (Details) - USD ($) $ in Millions	Mar. 31, 2021	Dec. 31, 2020
Financing Receivable, Credit Quality Indicator [Line Items]
Total Loans	$ 237,013	$ 241,928
Total commercial
Financing Receivable, Credit Quality Indicator [Line Items]
Financing receivable, originated in current year	15,477	37,554
Financing receivable, originated in year one	25,128	22,152
Financing receivable, originated in year two	21,041	13,389
Financing receivable, originated in year three	12,451	10,331
Financing receivable, originated in year four	9,750	7,634
Prior	23,313	16,824
Revolving Loans	57,275	59,247
Revolving Loans Converted to Term	71	72
Total Loans	164,506	167,203
Total commercial | Commercial and industrial
Financing Receivable, Credit Quality Indicator [Line Items]
Financing receivable, originated in current year	13,954	32,019
Financing receivable, originated in year one	20,299	14,042
Financing receivable, originated in year two	13,129	8,787
Financing receivable, originated in year three	8,143	6,290
Financing receivable, originated in year four	5,876	4,466
Prior	11,309	7,492
Revolving Loans	57,017	58,905
Revolving Loans Converted to Term	71	72
Total Loans	129,798	132,073
Total commercial | Commercial real estate
Financing Receivable, Credit Quality Indicator [Line Items]
Financing receivable, originated in current year	1,173	4,028
Financing receivable, originated in year one	3,398	6,816
Financing receivable, originated in year two	6,697	3,574
Financing receivable, originated in year three	3,361	3,264
Financing receivable, originated in year four	3,162	2,741
Prior	10,270	7,951
Revolving Loans	258	342
Revolving Loans Converted to Term
Total Loans	28,319	28,716
Total commercial | Equipment lease financing
Financing Receivable, Credit Quality Indicator [Line Items]
Financing receivable, originated in current year	350	1,507
Financing receivable, originated in year one	1,431	1,294
Financing receivable, originated in year two	1,215	1,028
Financing receivable, originated in year three	947	777
Financing receivable, originated in year four	712	427
Prior	1,734	1,381
Total Loans	6,389	6,414
Pass Rated | Total commercial | Commercial and industrial
Financing Receivable, Credit Quality Indicator [Line Items]
Financing receivable, originated in current year	13,796	31,680
Financing receivable, originated in year one	19,870	13,340
Financing receivable, originated in year two	12,404	8,209
Financing receivable, originated in year three	7,540	5,956
Financing receivable, originated in year four	5,559	4,242
Prior	10,715	7,141
Revolving Loans	53,161	54,775
Revolving Loans Converted to Term	51	53
Total Loans	123,096	125,396
Pass Rated | Total commercial | Commercial real estate
Financing Receivable, Credit Quality Indicator [Line Items]
Financing receivable, originated in current year	1,041	3,709
Financing receivable, originated in year one	3,261	6,268
Financing receivable, originated in year two	6,034	3,426
Financing receivable, originated in year three	3,195	2,841
Financing receivable, originated in year four	2,675	2,341
Prior	8,673	6,792
Revolving Loans	239	218
Total Loans	25,118	25,595
Pass Rated | Total commercial | Equipment lease financing
Financing Receivable, Credit Quality Indicator [Line Items]
Financing receivable, originated in current year	339	1,429
Financing receivable, originated in year one	1,360	1,202
Financing receivable, originated in year two	1,142	942
Financing receivable, originated in year three	868	738
Financing receivable, originated in year four	678	405
Prior	1,711	1,350
Total Loans	6,098	6,066
Criticized | Total commercial | Commercial and industrial
Financing Receivable, Credit Quality Indicator [Line Items]
Financing receivable, originated in current year	158	339
Financing receivable, originated in year one	429	702
Financing receivable, originated in year two	725	578
Financing receivable, originated in year three	603	334
Financing receivable, originated in year four	317	224
Prior	594	351
Revolving Loans	3,856	4,130
Revolving Loans Converted to Term	20	19
Total Loans	6,702	6,677
Criticized | Total commercial | Commercial real estate
Financing Receivable, Credit Quality Indicator [Line Items]
Financing receivable, originated in current year	132	319
Financing receivable, originated in year one	137	548
Financing receivable, originated in year two	663	148
Financing receivable, originated in year three	166	423
Financing receivable, originated in year four	487	400
Prior	1,597	1,159
Revolving Loans	19	124
Total Loans	3,201	3,121
Criticized | Total commercial | Equipment lease financing
Financing Receivable, Credit Quality Indicator [Line Items]
Financing receivable, originated in current year	11	78
Financing receivable, originated in year one	71	92
Financing receivable, originated in year two	73	86
Financing receivable, originated in year three	79	39
Financing receivable, originated in year four	34	22
Prior	23	31
Total Loans	$ 291	$ 348

Loans and Related Allowance f_7

Loans and Related Allowance for Credit Losses (Home Equity and Residential Real Estate Credit Quality Indicators) (Details) - USD ($) $ in Millions	Mar. 31, 2021	Dec. 31, 2020
Financing Receivable, Credit Quality Indicator [Line Items]
Total Loans	$ 237,013	$ 241,928
Home equity
Financing Receivable, Credit Quality Indicator [Line Items]
Financing receivable, originated in current year	231	3,434
Financing receivable, originated in year one	3,280	2,000
Financing receivable, originated in year two	1,801	590
Financing receivable, originated in year three	534	830
Financing receivable, originated in year four	749	694
Prior	4,293	4,000
Revolving Loans	8,273	8,794
Revolving Loans Converted to Term	4,332	3,746
Total Loans	23,493	24,088
Residential real estate
Financing Receivable, Credit Quality Indicator [Line Items]
Financing receivable, originated in current year	2,521	7,996
Financing receivable, originated in year one	7,311	4,158
Financing receivable, originated in year two	3,354	1,172
Financing receivable, originated in year three	974	1,942
Financing receivable, originated in year four	1,665	2,069
Prior	6,593	5,223
Total Loans	22,418	22,560
Greater than or equal to 780 | Home equity
Financing Receivable, Credit Quality Indicator [Line Items]
Financing receivable, originated in current year	127	2,019
Financing receivable, originated in year one	1,925	1,094
Financing receivable, originated in year two	960	311
Financing receivable, originated in year three	273	525
Financing receivable, originated in year four	467	449
Prior	2,640	2,467
Revolving Loans	5,148	5,382
Revolving Loans Converted to Term	1,844	1,480
Total Loans	13,384	13,727
Greater than or equal to 780 | Residential real estate
Financing Receivable, Credit Quality Indicator [Line Items]
Financing receivable, originated in current year	1,409	5,425
Financing receivable, originated in year one	5,220	3,099
Financing receivable, originated in year two	2,411	814
Financing receivable, originated in year three	661	1,432
Financing receivable, originated in year four	1,206	1,538
Prior	3,564	2,551
Total Loans	14,471	14,859
720 to 779 | Home equity
Financing Receivable, Credit Quality Indicator [Line Items]
Financing receivable, originated in current year	84	1,028
Financing receivable, originated in year one	947	558
Financing receivable, originated in year two	505	153
Financing receivable, originated in year three	138	181
Financing receivable, originated in year four	164	145
Prior	865	777
Revolving Loans	1,950	2,137
Revolving Loans Converted to Term	1,084	941
Total Loans	5,737	5,920
720 to 779 | Residential real estate
Financing Receivable, Credit Quality Indicator [Line Items]
Financing receivable, originated in current year	1,061	2,268
Financing receivable, originated in year one	1,767	820
Financing receivable, originated in year two	708	220
Financing receivable, originated in year three	182	340
Financing receivable, originated in year four	308	335
Prior	1,056	818
Total Loans	5,082	4,801
660 to 719 | Home equity
Financing Receivable, Credit Quality Indicator [Line Items]
Financing receivable, originated in current year	19	334
Financing receivable, originated in year one	346	273
Financing receivable, originated in year two	264	86
Financing receivable, originated in year three	83	84
Financing receivable, originated in year four	80	66
Prior	428	402
Revolving Loans	905	985
Revolving Loans Converted to Term	678	625
Total Loans	2,803	2,855
660 to 719 | Residential real estate
Financing Receivable, Credit Quality Indicator [Line Items]
Financing receivable, originated in current year	51	252
Financing receivable, originated in year one	267	161
Financing receivable, originated in year two	166	76
Financing receivable, originated in year three	81	98
Financing receivable, originated in year four	85	92
Prior	518	475
Total Loans	1,168	1,154
Less than 660 | Home equity
Financing Receivable, Credit Quality Indicator [Line Items]
Financing receivable, originated in current year	1	52
Financing receivable, originated in year one	61	74
Financing receivable, originated in year two	71	39
Financing receivable, originated in year three	39	39
Financing receivable, originated in year four	37	33
Prior	350	345
Revolving Loans	255	277
Revolving Loans Converted to Term	628	620
Total Loans	1,442	1,479
Less than 660 | Residential real estate
Financing Receivable, Credit Quality Indicator [Line Items]
Financing receivable, originated in current year		40
Financing receivable, originated in year one	43	48
Financing receivable, originated in year two	38	33
Financing receivable, originated in year three	23	31
Financing receivable, originated in year four	24	41
Prior	501	485
Total Loans	629	678
No FICO score available | Home equity
Financing Receivable, Credit Quality Indicator [Line Items]
Financing receivable, originated in current year		1
Financing receivable, originated in year one	1	1
Financing receivable, originated in year two	1	1
Financing receivable, originated in year three	1	1
Financing receivable, originated in year four	1	1
Prior	10	9
Revolving Loans	15	13
Revolving Loans Converted to Term	98	80
Total Loans	127	107
No FICO score available | Residential real estate
Financing Receivable, Credit Quality Indicator [Line Items]
Financing receivable, originated in current year		4
Financing receivable, originated in year one	6	2
Financing receivable, originated in year two	2	2
Financing receivable, originated in year three	2	3
Financing receivable, originated in year four	3	6
Prior	125	129
Total Loans	138	146
Government insured or guaranteed loans | Residential real estate
Financing Receivable, Credit Quality Indicator [Line Items]
Financing receivable, originated in current year		7
Financing receivable, originated in year one	8	28
Financing receivable, originated in year two	29	27
Financing receivable, originated in year three	25	38
Financing receivable, originated in year four	39	57
Prior	829	765
Total Loans	930	922
Greater than 100% | Home equity
Financing Receivable, Credit Quality Indicator [Line Items]
Financing receivable, originated in current year		8
Financing receivable, originated in year one	8	44
Financing receivable, originated in year two	41	18
Financing receivable, originated in year three	13	15
Financing receivable, originated in year four	10	9
Prior	73	88
Revolving Loans	471	580
Revolving Loans Converted to Term	254	279
Total Loans	870	1,041
Greater than 100% | Residential real estate
Financing Receivable, Credit Quality Indicator [Line Items]
Financing receivable, originated in current year		3
Financing receivable, originated in year one	4	52
Financing receivable, originated in year two	56	26
Financing receivable, originated in year three	23	42
Financing receivable, originated in year four	28	41
Prior	150	160
Total Loans	261	324
Greater than or equal to 80% to 100% | Home equity
Financing Receivable, Credit Quality Indicator [Line Items]
Financing receivable, originated in current year	35	517
Financing receivable, originated in year one	253	320
Financing receivable, originated in year two	200	59
Financing receivable, originated in year three	39	42
Financing receivable, originated in year four	27	25
Prior	139	158
Revolving Loans	1,384	1,781
Revolving Loans Converted to Term	615	591
Total Loans	2,692	3,493
Greater than or equal to 80% to 100% | Residential real estate
Financing Receivable, Credit Quality Indicator [Line Items]
Financing receivable, originated in current year	346	495
Financing receivable, originated in year one	142	422
Financing receivable, originated in year two	274	127
Financing receivable, originated in year three	70	156
Financing receivable, originated in year four	113	124
Prior	328	307
Total Loans	1,273	1,631
Less than 80% | Home equity
Financing Receivable, Credit Quality Indicator [Line Items]
Financing receivable, originated in current year	196	2,909
Financing receivable, originated in year one	3,019	1,636
Financing receivable, originated in year two	1,560	513
Financing receivable, originated in year three	482	773
Financing receivable, originated in year four	712	660
Prior	4,081	3,754
Revolving Loans	6,418	6,433
Revolving Loans Converted to Term	3,463	2,876
Total Loans	19,931	19,554
Less than 80% | Residential real estate
Financing Receivable, Credit Quality Indicator [Line Items]
Financing receivable, originated in current year	2,175	7,491
Financing receivable, originated in year one	7,157	3,656
Financing receivable, originated in year two	2,995	992
Financing receivable, originated in year three	856	1,706
Financing receivable, originated in year four	1,485	1,847
Prior	5,286	3,991
Total Loans	$ 19,954	$ 19,683

Loans and Related Allowance f_8

Loans and Related Allowance for Credit Losses (Credit Quality Indicators for Automobile, Credit Card, Education and Other Consumer Loan Classes) (Details) - USD ($) $ in Millions	Mar. 31, 2021	Dec. 31, 2020
Financing Receivable, Credit Quality Indicator [Line Items]
Total Loans	$ 237,013	$ 241,928
Automobile | Using FICO Credit Metric
Financing Receivable, Credit Quality Indicator [Line Items]
Financing receivable, originated in current year	1,084	3,714
Financing receivable, originated in year one	3,431	5,494
Financing receivable, originated in year two	4,880	2,878
Financing receivable, originated in year three	2,491	1,361
Financing receivable, originated in year four	1,130	609
Prior	568	162
Total Loans	13,584	14,218
Automobile | Greater than or equal to 780 | Using FICO Credit Metric
Financing Receivable, Credit Quality Indicator [Line Items]
Financing receivable, originated in current year	775	1,807
Financing receivable, originated in year one	1,545	1,915
Financing receivable, originated in year two	1,701	807
Financing receivable, originated in year three	688	452
Financing receivable, originated in year four	362	246
Prior	216	58
Total Loans	5,287	5,285
Automobile | 720 to 779 | Using FICO Credit Metric
Financing Receivable, Credit Quality Indicator [Line Items]
Financing receivable, originated in current year	242	1,098
Financing receivable, originated in year one	1,067	1,581
Financing receivable, originated in year two	1,380	789
Financing receivable, originated in year three	678	381
Financing receivable, originated in year four	320	167
Prior	157	44
Total Loans	3,844	4,060
Automobile | 660 to 719 | Using FICO Credit Metric
Financing Receivable, Credit Quality Indicator [Line Items]
Financing receivable, originated in current year	63	617
Financing receivable, originated in year one	591	1,222
Financing receivable, originated in year two	1,076	684
Financing receivable, originated in year three	590	288
Financing receivable, originated in year four	240	109
Prior	106	31
Total Loans	2,666	2,951
Automobile | Less than 660 | Using FICO Credit Metric
Financing Receivable, Credit Quality Indicator [Line Items]
Financing receivable, originated in current year	4	192
Financing receivable, originated in year one	228	776
Financing receivable, originated in year two	723	598
Financing receivable, originated in year three	535	240
Financing receivable, originated in year four	208	87
Prior	89	29
Total Loans	1,787	1,922
Credit card | Using FICO Credit Metric
Financing Receivable, Credit Quality Indicator [Line Items]
Revolving Loans	5,586	6,120
Revolving Loans Converted to Term	89	95
Total Loans	5,675	6,215
Credit card | Greater than or equal to 780 | Using FICO Credit Metric
Financing Receivable, Credit Quality Indicator [Line Items]
Revolving Loans	1,513	1,635
Revolving Loans Converted to Term	3	3
Total Loans	1,516	1,638
Credit card | 720 to 779 | Using FICO Credit Metric
Financing Receivable, Credit Quality Indicator [Line Items]
Revolving Loans	1,541	1,724
Revolving Loans Converted to Term	11	11
Total Loans	1,552	1,735
Credit card | 660 to 719 | Using FICO Credit Metric
Financing Receivable, Credit Quality Indicator [Line Items]
Revolving Loans	1,621	1,765
Revolving Loans Converted to Term	25	26
Total Loans	1,646	1,791
Credit card | Less than 660 | Using FICO Credit Metric
Financing Receivable, Credit Quality Indicator [Line Items]
Revolving Loans	817	902
Revolving Loans Converted to Term	46	51
Total Loans	863	953
Credit card | No FICO Score Available Or Required | Using FICO Credit Metric
Financing Receivable, Credit Quality Indicator [Line Items]
Revolving Loans	94	94
Revolving Loans Converted to Term	4	4
Total Loans	98	98
Education
Financing Receivable, Credit Quality Indicator [Line Items]
Financing receivable, originated in current year	13	92
Financing receivable, originated in year one	121	163
Financing receivable, originated in year two	156	135
Financing receivable, originated in year three	128	101
Financing receivable, originated in year four	95	78
Prior	2,329	2,377
Total Loans	2,842	2,946
Education | Using FICO Credit Metric
Financing Receivable, Credit Quality Indicator [Line Items]
Financing receivable, originated in current year	13	92
Financing receivable, originated in year one	121	163
Financing receivable, originated in year two	156	135
Financing receivable, originated in year three	128	101
Financing receivable, originated in year four	95	78
Prior	778	746
Total Loans	1,291	1,315
Education | Greater than or equal to 780 | Using FICO Credit Metric
Financing Receivable, Credit Quality Indicator [Line Items]
Financing receivable, originated in current year	1	34
Financing receivable, originated in year one	64	90
Financing receivable, originated in year two	86	74
Financing receivable, originated in year three	70	59
Financing receivable, originated in year four	55	50
Prior	450	428
Total Loans	726	735
Education | 720 to 779 | Using FICO Credit Metric
Financing Receivable, Credit Quality Indicator [Line Items]
Financing receivable, originated in current year	4	24
Financing receivable, originated in year one	34	46
Financing receivable, originated in year two	44	38
Financing receivable, originated in year three	37	28
Financing receivable, originated in year four	27	20
Prior	202	190
Total Loans	348	346
Education | 660 to 719 | Using FICO Credit Metric
Financing Receivable, Credit Quality Indicator [Line Items]
Financing receivable, originated in current year	4	15
Financing receivable, originated in year one	10	15
Financing receivable, originated in year two	14	14
Financing receivable, originated in year three	14	9
Financing receivable, originated in year four	8	6
Prior	90	90
Total Loans	140	149
Education | Less than 660 | Using FICO Credit Metric
Financing Receivable, Credit Quality Indicator [Line Items]
Financing receivable, originated in current year	1	3
Financing receivable, originated in year one	1	2
Financing receivable, originated in year two	3	3
Financing receivable, originated in year three	2	2
Financing receivable, originated in year four	2	2
Prior	35	37
Total Loans	44	49
Education | No FICO Score Available Or Required | Using FICO Credit Metric
Financing Receivable, Credit Quality Indicator [Line Items]
Financing receivable, originated in current year	3	16
Financing receivable, originated in year one	12	10
Financing receivable, originated in year two	9	6
Financing receivable, originated in year three	5	3
Financing receivable, originated in year four	3
Prior	1	1
Total Loans	33	36
Education | Other internal credit metrics
Financing Receivable, Credit Quality Indicator [Line Items]
Financing receivable, originated in current year
Financing receivable, originated in year one
Prior	1,551	1,631
Total Loans	1,551	1,631
Other consumer
Financing Receivable, Credit Quality Indicator [Line Items]
Financing receivable, originated in current year	124	581
Financing receivable, originated in year one	478	763
Financing receivable, originated in year two	650	304
Financing receivable, originated in year three	245	95
Financing receivable, originated in year four	77	75
Prior	210	161
Revolving Loans	2,701	2,713
Revolving Loans Converted to Term	10	6
Total Loans	4,495	4,698
Other consumer | Using FICO Credit Metric
Financing Receivable, Credit Quality Indicator [Line Items]
Financing receivable, originated in current year	92	514
Financing receivable, originated in year one	449	730
Financing receivable, originated in year two	622	267
Financing receivable, originated in year three	216	69
Financing receivable, originated in year four	51	15
Prior	84	86
Revolving Loans	336	379
Revolving Loans Converted to Term	2	3
Total Loans	1,852	2,063
Other consumer | Greater than or equal to 780 | Using FICO Credit Metric
Financing Receivable, Credit Quality Indicator [Line Items]
Financing receivable, originated in current year	31	162
Financing receivable, originated in year one	135	187
Financing receivable, originated in year two	150	63
Financing receivable, originated in year three	49	21
Financing receivable, originated in year four	15	5
Prior	40	42
Revolving Loans	73	86
Revolving Loans Converted to Term	1	1
Total Loans	494	567
Other consumer | 720 to 779 | Using FICO Credit Metric
Financing Receivable, Credit Quality Indicator [Line Items]
Financing receivable, originated in current year	33	197
Financing receivable, originated in year one	169	247
Financing receivable, originated in year two	206	82
Financing receivable, originated in year three	65	22
Financing receivable, originated in year four	16	5
Prior	23	22
Revolving Loans	109	123
Revolving Loans Converted to Term
Total Loans	621	698
Other consumer | 660 to 719 | Using FICO Credit Metric
Financing Receivable, Credit Quality Indicator [Line Items]
Financing receivable, originated in current year	27	127
Financing receivable, originated in year one	111	210
Financing receivable, originated in year two	185	81
Financing receivable, originated in year three	68	17
Financing receivable, originated in year four	13	3
Prior	14	14
Revolving Loans	107	117
Revolving Loans Converted to Term		1
Total Loans	525	570
Other consumer | Less than 660 | Using FICO Credit Metric
Financing Receivable, Credit Quality Indicator [Line Items]
Financing receivable, originated in current year	1	28
Financing receivable, originated in year one	34	86
Financing receivable, originated in year two	81	41
Financing receivable, originated in year three	34	9
Financing receivable, originated in year four	7	2
Prior	7	8
Revolving Loans	47	53
Revolving Loans Converted to Term	1	1
Total Loans	212	228
Other consumer | Other internal credit metrics
Financing Receivable, Credit Quality Indicator [Line Items]
Financing receivable, originated in current year	32	67
Financing receivable, originated in year one	29	33
Financing receivable, originated in year two	28	37
Financing receivable, originated in year three	29	26
Financing receivable, originated in year four	26	60
Prior	126	75
Revolving Loans	2,365	2,334
Revolving Loans Converted to Term	8	3
Total Loans	$ 2,643	$ 2,635

Loans and Related Allowance f_9

Loans and Related Allowance for Credit Losses (Financial Impact and TDRs by Concession Type) (Details) $ in Millions	3 Months Ended
	Mar. 31, 2021USD ($)loan	Mar. 31, 2020USD ($)loan
Financing Receivable, Troubled Debt Restructuring [Line Items]
Number of Loans | loan	2,115	3,580
Pre-TDR Amortized Cost Basis	$ 125	$ 98
Post-TDR Amortized Cost Basis	122	75
Principal Forgiveness
Financing Receivable, Troubled Debt Restructuring [Line Items]
Post-TDR Amortized Cost Basis		6
Rate Reduction
Financing Receivable, Troubled Debt Restructuring [Line Items]
Post-TDR Amortized Cost Basis	16	22
Other
Financing Receivable, Troubled Debt Restructuring [Line Items]
Post-TDR Amortized Cost Basis	$ 106	$ 47
Total commercial
Financing Receivable, Troubled Debt Restructuring [Line Items]
Number of Loans | loan	19	13
Pre-TDR Amortized Cost Basis	$ 93	$ 62
Post-TDR Amortized Cost Basis	94	43
Total commercial | Principal Forgiveness
Financing Receivable, Troubled Debt Restructuring [Line Items]
Post-TDR Amortized Cost Basis		6
Total commercial | Rate Reduction
Financing Receivable, Troubled Debt Restructuring [Line Items]
Post-TDR Amortized Cost Basis
Total commercial | Other
Financing Receivable, Troubled Debt Restructuring [Line Items]
Post-TDR Amortized Cost Basis	$ 94	$ 37
Total consumer
Financing Receivable, Troubled Debt Restructuring [Line Items]
Number of Loans | loan	2,096	3,567
Pre-TDR Amortized Cost Basis	$ 32	$ 36
Post-TDR Amortized Cost Basis	28	32
Total consumer | Principal Forgiveness
Financing Receivable, Troubled Debt Restructuring [Line Items]
Post-TDR Amortized Cost Basis
Total consumer | Rate Reduction
Financing Receivable, Troubled Debt Restructuring [Line Items]
Post-TDR Amortized Cost Basis	16	22
Total consumer | Other
Financing Receivable, Troubled Debt Restructuring [Line Items]
Post-TDR Amortized Cost Basis	$ 12	$ 10

Loans and Related Allowance _10

Loans and Related Allowance for Credit Losses (Rollforward of Allowance for Credit Losses of Loans and Leases) (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2021	Mar. 31, 2020	Dec. 31, 2020	Dec. 31, 2019
Financing Receivable, Allowance for Credit Loss [Roll Forward]
Beginning balance	$ 5,361	$ 2,742
Charge-offs	(243)	(304)
Recoveries	97	92
Net (charge-offs)	(146)	(212)
Provision for (recapture of) credit losses	(502)	952
Other	1	(1)
Ending balance	4,714	3,944
Off-Balance Sheet, Credit Loss, Liability [Roll Forward]
Beginning balance	584	318
Provision for (recapture of) credit losses	(77)	(47)
Ending balance	507	450
Allowance for credit loss	5,221	4,394	$ 5,945	$ 3,060
Allowances for investment securities and other financial assets	136	21
Total commercial
Financing Receivable, Allowance for Credit Loss [Roll Forward]
Beginning balance	3,337	1,812
Charge-offs	(69)	(83)
Recoveries	18	24
Net (charge-offs)	(51)	(59)
Provision for (recapture of) credit losses	(204)	531
Other	1	(1)
Ending balance	3,083	1,979
Off-Balance Sheet, Credit Loss, Liability [Roll Forward]
Beginning balance	485	316
Provision for (recapture of) credit losses	(82)	(25)
Ending balance	403	344
Allowance for credit loss	3,486	2,323	3,822	2,128
Total consumer
Financing Receivable, Allowance for Credit Loss [Roll Forward]
Beginning balance	2,024	930
Charge-offs	(174)	(221)
Recoveries	79	68
Net (charge-offs)	(95)	(153)
Provision for (recapture of) credit losses	(298)	421
Ending balance	1,631	1,965
Off-Balance Sheet, Credit Loss, Liability [Roll Forward]
Beginning balance	99	2
Provision for (recapture of) credit losses	5	(22)
Ending balance	104	106
Allowance for credit loss	1,735	2,071	$ 2,123	$ 932
Cumulative Effect, Period of Adoption, Adjustment
Financing Receivable, Allowance for Credit Loss [Roll Forward]
Beginning balance		463
Off-Balance Sheet, Credit Loss, Liability [Roll Forward]
Beginning balance		179
Cumulative Effect, Period of Adoption, Adjustment | Total commercial
Financing Receivable, Allowance for Credit Loss [Roll Forward]
Beginning balance		(304)
Off-Balance Sheet, Credit Loss, Liability [Roll Forward]
Beginning balance		53
Cumulative Effect, Period of Adoption, Adjustment | Total consumer
Financing Receivable, Allowance for Credit Loss [Roll Forward]
Beginning balance		767
Off-Balance Sheet, Credit Loss, Liability [Roll Forward]
Beginning balance		126
Cumulative Effect, Period of Adoption, Adjusted Balance
Financing Receivable, Allowance for Credit Loss [Roll Forward]
Beginning balance	5,361	3,205
Off-Balance Sheet, Credit Loss, Liability [Roll Forward]
Beginning balance	584	497
Cumulative Effect, Period of Adoption, Adjusted Balance | Total commercial
Financing Receivable, Allowance for Credit Loss [Roll Forward]
Beginning balance	3,337	1,508
Off-Balance Sheet, Credit Loss, Liability [Roll Forward]
Beginning balance	485	369
Cumulative Effect, Period of Adoption, Adjusted Balance | Total consumer
Financing Receivable, Allowance for Credit Loss [Roll Forward]
Beginning balance	2,024	1,697
Off-Balance Sheet, Credit Loss, Liability [Roll Forward]
Beginning balance	$ 99	$ 128

Loan Sale and Servicing Activ_3

Loan Sale and Servicing Activities and Variable Interest Entities (Cash Flows Associated with Loan Sale and Servicing Activities) (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2021	Mar. 31, 2020	Dec. 31, 2020
Residential mortgage loans held for sale
Cash flows from sales of loans	$ 1,239	$ 1,334
Cash flows from repurchases of previously transferred loans	93	95
Cash flows from servicing fees	82	85
Cash flows from servicing advances recovered/(funded), net	17	12
Cash flows on mortgage-backed securities held	2,555	1,361
Carrying value of mortgage-backed securities held	15,400	17,100	$ 16,500
Commercial mortgage loans held for sale
Cash flows from sales of loans	988	493
Cash flows from repurchases of previously transferred loans	33	15
Cash flows from servicing fees	38	33
Cash flows from servicing advances recovered/(funded), net	(10)	12
Cash flows on mortgage-backed securities held	29	37
Carrying value of mortgage-backed securities held	$ 800	$ 800	$ 800

Loan Sale and Servicing Activ_4

Loan Sale and Servicing Activities and Variable Interest Entities (Principal Balance, Delinquent Loans (Loans 90 Days or More Past Due), and Net Charge-Offs Related to Serviced Loans) (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2021	Mar. 31, 2020	Dec. 31, 2020
Residential mortgage loans held for sale
Total principal balance	$ 41,096		$ 43,351
Delinquent loans	450		453
Net charge-offs	2	$ 8
Commercial mortgage loans held for sale
Total principal balance	41,735		40,790
Delinquent loans	126		$ 136
Net charge-offs	$ 153	$ 99

Loan Sale and Servicing Activ_5

Loan Sale and Servicing Activities and Variable Interest Entities (Non-Consolidated VIEs) (Details) - USD ($) $ in Millions	Mar. 31, 2021	Dec. 31, 2020
PNC Risk of Loss	$ 19,977	$ 21,328
Carrying Value of Assets Owned by PNC	474,414	466,679
Carrying Value of Liabilities Owned by PNC	420,535	412,638
Variable Interest Entity, Primary Beneficiary
Carrying Value of Assets Owned by PNC	19,960	21,101
Carrying Value of Liabilities Owned by PNC	1,426	1,199
Variable Interest Entity, Primary Beneficiary | Mortgage-Backed Securitizations
PNC Risk of Loss	16,883	18,207
Carrying Value of Assets Owned by PNC	16,883	18,207
Carrying Value of Liabilities Owned by PNC	1	1
Variable Interest Entity, Primary Beneficiary | Tax Credit Investments And Other
PNC Risk of Loss	3,094	3,121
Carrying Value of Assets Owned by PNC	3,077	2,894
Carrying Value of Liabilities Owned by PNC	$ 1,425	$ 1,198

Loan Sale and Servicing Activ_6

Loan Sale and Servicing Activities and Variable Interest Entities Loan Sale and Servicing Activities and Variable Interest Entities (Additional Information) (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2021	Mar. 31, 2020
Low Income Housing Tax Credit Investments
Accounts, Notes, Loans and Financing Receivable [Line Items]
Amortization, tax credits, and other tax benefits recognized low income housing tax credit investments (less than)	$ 100	$ 100

Goodwill Mortgage Servicing Rig

Goodwill Mortgage Servicing Rights (Narrative) (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2021	Mar. 31, 2020	Dec. 31, 2020
Goodwill and Intangible Assets Disclosure [Abstract]
Mortgage servicing rights	$ 1,680		$ 1,242
Fees from mortgage and other loan servicing	$ 100	$ 100

Goodwill and Mortgage Servici_3

Goodwill and Mortgage Servicing Rights (Mortgage Servicing Rights) (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2021	Mar. 31, 2020
Servicing Asset at Fair Value, Amount [Roll Forward]
Mortgage servicing rights, beginning balance	$ 1,242
Mortgage servicing rights, ending balance	1,680
Mortgage Servicing Rights | Commercial real estate
Servicing Asset at Fair Value, Amount [Roll Forward]
Mortgage servicing rights, beginning balance	569	$ 649
Mortgage servicing rights, ending balance	701	477
Unpaid principal balance of loans serviced for others at end of period	256,198	225,769
Servicing advances	447	145
Mortgage Servicing Rights | Commercial real estate | Time and Payoffs
Servicing Asset at Fair Value, Amount [Roll Forward]
Changes in Fair Value	(28)	(35)
Mortgage Servicing Rights | Commercial real estate | Other
Servicing Asset at Fair Value, Amount [Roll Forward]
Changes in Fair Value	129	(167)
Mortgage Servicing Rights | Commercial real estate | From loans sold with servicing retained
Servicing Asset at Fair Value, Amount [Roll Forward]
Additions	18	11
Mortgage Servicing Rights | Commercial real estate | Purchases
Servicing Asset at Fair Value, Amount [Roll Forward]
Additions	13	19
Mortgage Servicing Rights | Residential mortgage loans held for sale
Servicing Asset at Fair Value, Amount [Roll Forward]
Mortgage servicing rights, beginning balance	673	995
Mortgage servicing rights, ending balance	979	605
Unpaid principal balance of loans serviced for others at end of period	117,287	118,104
Servicing advances	126	99
Mortgage Servicing Rights | Residential mortgage loans held for sale | Time and Payoffs
Servicing Asset at Fair Value, Amount [Roll Forward]
Changes in Fair Value	(73)	(39)
Mortgage Servicing Rights | Residential mortgage loans held for sale | Other
Servicing Asset at Fair Value, Amount [Roll Forward]
Changes in Fair Value	295	(379)
Mortgage Servicing Rights | Residential mortgage loans held for sale | From loans sold with servicing retained
Servicing Asset at Fair Value, Amount [Roll Forward]
Additions	13	10
Mortgage Servicing Rights | Residential mortgage loans held for sale | Purchases
Servicing Asset at Fair Value, Amount [Roll Forward]
Additions	$ 71	$ 18

Goodwill Mortgage Servicing R_2

Goodwill Mortgage Servicing Rights (Commercial and Residential Mortgage Loan Servicing Assets - Key Valuation Assumptions) (Details) $ in Millions	3 Months Ended	12 Months Ended
	Mar. 31, 2021USD ($)	Dec. 31, 2020USD ($)	Mar. 31, 2020USD ($)	Dec. 31, 2019USD ($)
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	$ 1,680	$ 1,242
Mortgage Servicing Rights | Commercial real estate
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	$ 701	$ 569	$ 477	$ 649
Weighted-average life (years)	4 years 8 months 12 days	4 years 4 months 24 days
Decline in fair value from 10% adverse change in prepayment rate	$ 11	$ 9
Decline in fair value from 20% adverse change in prepayment rate	22	18
Decline in fair value from 10% adverse change in interest rate	20	15
Decline in fair value from 20% adverse change in interest rate	40	31
Mortgage Servicing Rights | Residential mortgage loans held for sale
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	$ 979	$ 673	$ 605	$ 995
Weighted-average life (years)	6 years 2 months 12 days	3 years 9 months 18 days
Decline in fair value from 10% adverse change in prepayment rate	$ 38	$ 41
Decline in fair value from 20% adverse change in prepayment rate	$ 79	$ 82
Spread over the benchmark curve	9.44%	9.22%
Decline in fair value from 10% adverse change in adjusted spread	$ 34	$ 20
Decline in fair value from 20% adverse change in adjusted spread	$ 66	$ 38
Mortgage Servicing Rights | Measurement Input, Constant Prepayment Rate | Commercial real estate
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]
Servicing asset, measurement input	0.0487	0.0487
Mortgage Servicing Rights | Measurement Input, Constant Prepayment Rate | Residential mortgage loans held for sale
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]
Servicing asset, measurement input	0.1072	0.2113
Mortgage Servicing Rights | Measurement Input, Discount Rate | Commercial real estate
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]
Servicing asset, measurement input	0.0739	0.0733

Leases (Lessor Income) (Details

Leases (Lessor Income) (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2021	Mar. 31, 2020
Leases [Abstract]
Sales-type leases and direct financing leases	$ 62	$ 71
Operating leases	20	27
Lessor income	$ 82	$ 98

Commitments (Other Commitments)

Commitments (Other Commitments) (Details) - USD ($) $ in Millions	Mar. 31, 2021	Dec. 31, 2020
Other Commitments [Line Items]
Commitments	$ 223,779	$ 220,368
Liability Related To Investments In Low Income Housing Tax Credits	1,100	1,100
Commitments to extend credit
Other Commitments [Line Items]
Commitments	210,413	207,821
Commitments to extend credit | Total commercial
Other Commitments [Line Items]
Commitments	154,482	153,089
Commitments to extend credit | Home equity lines of credit
Other Commitments [Line Items]
Commitments	16,604	16,626
Commitments to extend credit | Credit card
Other Commitments [Line Items]
Commitments	31,132	31,019
Commitments to extend credit | Other
Other Commitments [Line Items]
Commitments	8,195	7,087
Standby letters of credit
Other Commitments [Line Items]
Commitments	9,090	9,053
Standby letters of credit | Remarketing Programs
Other Commitments [Line Items]
Commitments	3,700	3,800
Standby bond purchase agreements
Other Commitments [Line Items]
Commitments	1,543	1,448
Other commitments
Other Commitments [Line Items]
Commitments	$ 2,733	$ 2,046

Commitments (Narrative) (Detail

Commitments (Narrative) (Details) $ in Billions	3 Months Ended
	Mar. 31, 2021USD ($)
Minimum
Loss Contingencies [Line Items]
Standby letter of credit, term	1 year
Maximum
Loss Contingencies [Line Items]
Standby letter of credit, term	6 years
Standby letters of credit
Loss Contingencies [Line Items]
Internal credit ratings (as a percentage of portfolio) - Pass	97.00%
Standby letters of credit - Assets securing certain specifically identified standby letters of credit	$ 1.3
Standby letters of credit and participations in standby letters of credit - Liability carrying amount	$ 0.1

Total Equity and Other Compre_3

Total Equity and Other Comprehensive Income (Rollforward of Total Equity) (Details) - USD ($) shares in Millions, $ in Millions	3 Months Ended		12 Months Ended
	Mar. 31, 2021	Mar. 31, 2020	Dec. 31, 2019	Dec. 31, 2020
Common Stock [Abstract]
Equity, Beginning Balance	$ 54,041	$ 49,343
Accounting Standards Update [Extensible List]			us-gaap:AccountingStandardsUpdate201613Member
Net income	1,826	915
Other comprehensive income (loss), net of tax	(1,480)	1,719
Dividends, Cash [Abstract]
Common	(493)	(503)
Preferred	(57)	(63)
Treasury stock activity	128	(1,310)
Other	(86)	(140)
Equity, Ending Balance	53,879	49,290	$ 49,343
Par value less than $.5 million at each date	$ 0.5	0.5	0.5	$ 0.5
Cumulative Effect, Period of Adoption, Adjustment
Common Stock [Abstract]
Equity, Beginning Balance		(671)
Dividends, Cash [Abstract]
Equity, Ending Balance			(671)
Cumulative Effect, Period of Adoption, Adjusted Balance
Common Stock [Abstract]
Equity, Beginning Balance		$ 48,672
Dividends, Cash [Abstract]
Equity, Ending Balance			$ 48,672
Common Stock
Common Stock [Abstract]
Beginning Balance (in shares)	424	433
Treasury stock activity, shares	1	(9)
Ending Balance, (in shares)	425	424	433
Equity, Beginning Balance	$ 2,713	$ 2,712
Dividends, Cash [Abstract]
Equity, Ending Balance	2,713	$ 2,712	$ 2,712
Common Stock | Cumulative Effect, Period of Adoption, Adjusted Balance
Common Stock [Abstract]
Beginning Balance (in shares)		433
Ending Balance, (in shares)			433
Equity, Beginning Balance		$ 2,712
Dividends, Cash [Abstract]
Equity, Ending Balance			$ 2,712
Capital Surplus - Preferred Stock
Common Stock [Abstract]
Equity, Beginning Balance	3,517	3,993
Dividends, Cash [Abstract]
Preferred stock discount accretion	1	1
Equity, Ending Balance	3,518	3,994	3,993
Capital Surplus - Preferred Stock | Cumulative Effect, Period of Adoption, Adjusted Balance
Common Stock [Abstract]
Equity, Beginning Balance		3,993
Dividends, Cash [Abstract]
Equity, Ending Balance			3,993
Capital Surplus - Common Stock and Other
Common Stock [Abstract]
Equity, Beginning Balance	12,367	12,376
Dividends, Cash [Abstract]
Treasury stock activity	69	49
Other	(75)	(131)
Equity, Ending Balance	12,361	12,294	12,376
Capital Surplus - Common Stock and Other | Cumulative Effect, Period of Adoption, Adjusted Balance
Common Stock [Abstract]
Equity, Beginning Balance		12,376
Dividends, Cash [Abstract]
Equity, Ending Balance			12,376
Retained Earnings
Common Stock [Abstract]
Equity, Beginning Balance	46,848	42,215
Net income	1,816	908
Dividends, Cash [Abstract]
Common	(493)	(503)
Preferred	(57)	(63)
Preferred stock discount accretion	(1)	(1)
Equity, Ending Balance	48,113	41,885	42,215
Retained Earnings | Cumulative Effect, Period of Adoption, Adjustment
Common Stock [Abstract]
Equity, Beginning Balance		(671)
Dividends, Cash [Abstract]
Equity, Ending Balance			(671)
Retained Earnings | Cumulative Effect, Period of Adoption, Adjusted Balance
Common Stock [Abstract]
Equity, Beginning Balance		41,544
Dividends, Cash [Abstract]
Equity, Ending Balance			41,544
Accumulated Other Comprehensive Income (Loss)
Common Stock [Abstract]
Equity, Beginning Balance	2,770	799
Other comprehensive income (loss), net of tax	(1,480)	1,719
Dividends, Cash [Abstract]
Equity, Ending Balance	1,290	2,518	799
Accumulated Other Comprehensive Income (Loss) | Cumulative Effect, Period of Adoption, Adjusted Balance
Common Stock [Abstract]
Equity, Beginning Balance		799
Dividends, Cash [Abstract]
Equity, Ending Balance			799
Treasury Stock
Common Stock [Abstract]
Equity, Beginning Balance	(14,205)	(12,781)
Dividends, Cash [Abstract]
Treasury stock activity	59	(1,359)
Equity, Ending Balance	(14,146)	(14,140)	(12,781)
Treasury Stock | Cumulative Effect, Period of Adoption, Adjusted Balance
Common Stock [Abstract]
Equity, Beginning Balance		(12,781)
Dividends, Cash [Abstract]
Equity, Ending Balance			(12,781)
Non- controlling Interests
Common Stock [Abstract]
Equity, Beginning Balance	31	29
Net income	10	7
Dividends, Cash [Abstract]
Other	(11)	(9)
Equity, Ending Balance	$ 30	27	29
Non- controlling Interests | Cumulative Effect, Period of Adoption, Adjusted Balance
Common Stock [Abstract]
Equity, Beginning Balance		$ 29
Dividends, Cash [Abstract]
Equity, Ending Balance			$ 29

Total Equity and Other Compre_4

Total Equity and Other Comprehensive Income (Other Comprehensive Income) (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2021	Mar. 31, 2020
Other Comprehensive Income (Loss), Securities, Available-for-sale, Adjustment, before Tax [Abstract]
Net unrealized gains (losses) on securities, pre-tax	$ (1,181)	$ 1,662
Less: Net realized gains (losses) reclassified to earnings	13	182
Net increase (decrease), pre-tax	(1,194)	1,480
Other Comprehensive Income (Loss), Available-for-sale Securities, before Reclassification Adjustments, Tax [Abstract]
Net unrealized gains (losses) on securities, tax effect	278	(381)
Less: Net realized gains (losses) reclassified to earnings, tax effect	(3)	(42)
Effect of income taxes	281	(339)
Other Comprehensive Income (Loss), Securities, Available-for-sale, Adjustment, After Reclassification Adjustments, after Tax [Abstract]
Net unrealized gains (losses) on securities, after tax	(903)	1,281
Less: Net realized gains (losses) reclassified to earnings, after tax	10	140
Net increase (decrease), after-tax	(913)	1,141
Other Comprehensive Income (Loss), Cash Flow Hedge, Gain (Loss), after Reclassification, before Tax [Abstract]
Net unrealized gains (losses) on cash flow hedges, pre-tax	(640)	830
Less: Net realized gains (losses) reclassified to earnings, pre-tax	135	45
Net increase (decrease), pre-tax	(775)	785
Other Comprehensive Income (Loss), Cash Flow Hedge, Gain (Loss), after Reclassification, Tax [Abstract]
Net unrealized gains (losses) on cash flow hedges, tax effect	151	(190)
Less: Net realized gains (losses) reclassified to earnings, tax effect	(32)	(10)
Effect of income taxes	183	(180)
Other Comprehensive Income (Loss), Cash Flow Hedge, Gain (Loss), after Reclassification and Tax [Abstract]
Net unrealized gains (losses) on cash flow hedges, after tax	(489)	640
Less: Net realized gains (losses) reclassified to earnings, after tax	103	35
Net increase (decrease), after-tax	(592)	605
Other Comprehensive Income (Loss), Defined Benefit Plan, Gain (Loss), after Reclassification Adjustment, before Tax [Abstract]
Net pension and other postretirement benefit plan activity and other reclassified to earnings, pre-tax	30	12
Net increase (decrease), pre-tax	30	12
Other Comprehensive (Income) Loss, Defined Benefit Plan, after Reclassification Adjustment, Tax [Abstract]
Net pension and other postretirement benefit plan activity and other reclassified to earnings, tax effect	(7)	(3)
Effect of income taxes	(7)	(3)
Other Comprehensive (Income) Loss, Defined Benefit Plan, after Reclassification Adjustment, after Tax [Abstract]
Net pension and other postretirement benefit plan activity and other reclassified to earnings, after-tax	23	9
Net increase (decrease), after-tax	23	9
Other Comprehensive Income Other Adjustments [Abstract]
Net unrealized gains (losses) on other transactions, pre-tax	1	8
Net increase (decrease), pre-tax	1	8
Net unrealized gains (losses) on other transactions, tax effect	1	(18)
Effect of income taxes	1	(18)
Net unrealized gains (losses) on other transactions, after tax	2	(10)
Net increase (decrease), after-tax	2	(10)
Other comprehensive income (loss), before tax and net of reclassifications into Net income	(1,938)	2,251
Total other comprehensive income (loss), tax effect	458	(532)
Other comprehensive income (loss), after tax and net of reclassifications into Net income	(1,480)	1,719
Continuing Operations
Other Comprehensive Income Other Adjustments [Abstract]
Net unrealized gains (losses) on other transactions, pre-tax	1	8
Other comprehensive income (loss), before tax and net of reclassifications into Net income	(1,938)	2,285
Total other comprehensive income (loss), tax effect	458	(540)
Other comprehensive income (loss), after tax and net of reclassifications into Net income	$ (1,480)	1,745
Discontinued Operations
Other Comprehensive Income Other Adjustments [Abstract]
Other comprehensive income (loss), before tax and net of reclassifications into Net income		(34)
Total other comprehensive income (loss), tax effect		8
Other comprehensive income (loss), after tax and net of reclassifications into Net income		$ (26)

Total Equity and Other Compre_5

Total Equity and Other Comprehensive Income (Accumulated Other Comprehensive Income (Loss) Components) (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2021	Mar. 31, 2020
Accumulated Other Comprehensive Income (Loss) [Line Items]
Equity, Beginning Balance	$ 54,041	$ 49,343
Other comprehensive income (loss), net of tax	(1,480)	1,719
Equity, Ending Balance	53,879	49,290
Continuing Operations
Accumulated Other Comprehensive Income (Loss) [Line Items]
Other comprehensive income (loss), net of tax	(1,480)	1,745
Discontinued Operations
Accumulated Other Comprehensive Income (Loss) [Line Items]
Other comprehensive income (loss), net of tax		(26)
Debt securities
Accumulated Other Comprehensive Income (Loss) [Line Items]
Equity, Beginning Balance	2,462	1,067
Other comprehensive income (loss), net of tax	(913)	1,141
Equity, Ending Balance	1,549	2,208
Cash flow hedge derivatives
Accumulated Other Comprehensive Income (Loss) [Line Items]
Equity, Beginning Balance	659	276
Other comprehensive income (loss), net of tax	(592)	605
Equity, Ending Balance	67	881
Pension and  other postretirement benefit plan adjustments
Accumulated Other Comprehensive Income (Loss) [Line Items]
Equity, Beginning Balance	(345)	(408)
Other comprehensive income (loss), net of tax	23	9
Equity, Ending Balance	(322)	(399)
Other
Accumulated Other Comprehensive Income (Loss) [Line Items]
Equity, Beginning Balance	(6)	(21)
Other comprehensive income (loss), net of tax	2	(10)
Equity, Ending Balance	(4)	(31)
Total
Accumulated Other Comprehensive Income (Loss) [Line Items]
Equity, Beginning Balance	2,770	799
Other comprehensive income (loss), net of tax	(1,480)	1,719
Equity, Ending Balance	1,290	2,518
Total | Continuing Operations
Accumulated Other Comprehensive Income (Loss) [Line Items]
Equity, Beginning Balance	2,770	914
Other comprehensive income (loss), net of tax	(1,480)	1,745
Equity, Ending Balance	1,290	2,659
Total | Discontinued Operations
Accumulated Other Comprehensive Income (Loss) [Line Items]
Equity, Beginning Balance		(115)
Other comprehensive income (loss), net of tax		(26)
Equity, Ending Balance		$ (141)

Total Equity and Other Compre_6

Total Equity and Other Comprehensive Income (Dividends per Share) (Details) - $ / shares	Apr. 01, 2021	Mar. 31, 2021	Mar. 31, 2020	Dec. 31, 2020	Sep. 01, 2020
Class of Stock [Line Items]
Common stock held in treasury at cost (shares)		118,000,000		119,000,000
Common Stock
Class of Stock [Line Items]
Cash dividends declared, Common, per share (in dollars per share)		$ 1.15	$ 1.15
Common Stock | Subsequent Event
Class of Stock [Line Items]
Cash dividends declared, Common, per share (in dollars per share)	$ 1.15
Series B
Class of Stock [Line Items]
Cash dividends declared, Preferred, per share (in dollars per share)		0.45	0.45
Series O
Class of Stock [Line Items]
Cash dividends declared, Preferred, per share (in dollars per share)		3,375	3,375
Series P
Class of Stock [Line Items]
Cash dividends declared, Preferred, per share (in dollars per share)		$ 1,531	1,531
Series Q
Class of Stock [Line Items]
Cash dividends declared, Preferred, per share (in dollars per share)			$ 1,344
Treasury stock, preferred (shares)					4,800
Depositary Shares
Class of Stock [Line Items]
Common stock held in treasury at cost (shares)					19,200,000

Earnings per Share (Details)

Earnings per Share (Details) - USD ($) $ / shares in Units, shares in Millions, $ in Millions	3 Months Ended
	Mar. 31, 2021	Mar. 31, 2020
Earnings Per Share [Abstract]
Net income from continuing operations	$ 1,826	$ 759
Net income attributable to noncontrolling interests	10	7
Preferred stock dividends	57	63
Preferred stock discount accretion and redemptions	1	1
Net income from continuing operations attributable to common shareholders	1,758	688
Less: Dividends and undistributed earnings allocated to nonvested restricted shares	8	3
Net income from continuing operations attributable to basic common shareholders	1,750	685
Net income from discontinued operations attributable to common shareholders		156
Less: Undistributed earnings allocated to nonvested restricted shares		1
Net income from discontinued operations attributable to basic common shareholders		$ 155
Basic weighted-average common shares outstanding (in shares)	426	429
Basic earnings (loss) per common share from continuing operations (in dollars per share)	$ 4.11	$ 1.59
Basic earnings per common share from discontinued operations (in dollars per share)		0.37
Basic earnings per common share (in dollars per share)	$ 4.11	$ 1.96
Less: Impact of earnings per share dilution from discontinued operations		$ 1
Net income from discontinued operations attributable to diluted common shareholders		$ 154
Dilutive potential common shares (in shares)		1
Diluted weighted-average common shares outstanding (in shares)	426	430
Diluted earnings (loss) per common share from continuing operations (in dollars per share)	$ 4.10	$ 1.59
Diluted earnings per common share from discontinued operations (in dollars per share)		0.36
Diluted earnings per common share (in dollars per share)	$ 4.10	$ 1.95

Fair Value (Recurring Fair Valu

Fair Value (Recurring Fair Value Measurements) (Details) - USD ($) $ in Millions	3 Months Ended	12 Months Ended
	Mar. 31, 2021	Dec. 31, 2020
Assets
Investment securities – available for sale	$ 96,799	$ 87,358
Mortgage servicing rights	1,680	1,242
Financial derivatives	3,296	4,379
Liabilities
Financial derivatives	$ 824	$ 584
Assets At Fair Value | Assets, Total
Liabilities
Concentration risk, percentage	23.00%	22.00%
Level 3 Assets | Assets, Total
Liabilities
Concentration risk, percentage	5.00%	5.00%
Level 3 Assets | Assets
Liabilities
Concentration risk, percentage	1.00%	1.00%
Liabilities At Fair Value | Liabilities, Total
Liabilities
Concentration risk, percentage	1.00%	1.00%
Level Three Liabilities | Liabilities, Total
Liabilities
Concentration risk, percentage	8.00%	9.00%
Level Three Liabilities | Liability
Liabilities
Concentration risk, percentage	1.00%	1.00%
Fair Value, Recurring
Assets
Investment securities – available for sale	$ 96,799	$ 87,358
Loans	1,441	1,365
Equity investments	2,725	2,629
Trading securities	1,588	2,238
Financial derivatives	4,916	6,533
Other assets	477	454
Total Assets	111,263	103,035
Liabilities
Other borrowed funds	838	707
Financial derivatives	3,023	2,756
Other liabilities	73	43
Total liabilities	3,934	3,506
Level 1 | Fair Value, Recurring
Assets
Investment securities – available for sale	21,997	16,675
Equity investments	1,133	1,070
Trading securities	576	548
Other assets	384	373
Total Assets	24,090	18,666
Liabilities
Other borrowed funds	790	661
Total liabilities	790	661
Level 2 | Fair Value, Recurring
Assets
Investment securities – available for sale	73,209	69,036
Loans	730	718
Trading securities	1,012	1,690
Financial derivatives	4,853	6,415
Other assets	93	81
Total Assets	81,313	78,936
Liabilities
Other borrowed funds	46	44
Financial derivatives	2,796	2,483
Total liabilities	2,842	2,527
Level 3 | Fair Value, Recurring
Assets
Investment securities – available for sale	1,593	1,647
Loans	711	647
Equity investments	1,343	1,263
Financial derivatives	63	118
Total Assets	5,611	5,137
Liabilities
Other borrowed funds	2	2
Financial derivatives	227	273
Other liabilities	73	43
Total liabilities	302	318
Residential mortgage loans held for sale | Fair Value, Recurring
Assets
Loans held for sale	1,252	854
Residential mortgage loans held for sale | Level 2 | Fair Value, Recurring
Assets
Loans held for sale	1,087	691
Residential mortgage loans held for sale | Level 3 | Fair Value, Recurring
Assets
Loans held for sale	165	163
Commercial mortgage loans held for sale | Fair Value, Recurring
Assets
Loans held for sale	385	362
Commercial mortgage loans held for sale | Level 2 | Fair Value, Recurring
Assets
Loans held for sale	329	305
Commercial mortgage loans held for sale | Level 3 | Fair Value, Recurring
Assets
Loans held for sale	56	57
U.S. Treasury and government agencies | Fair Value, Recurring
Assets
Investment securities – available for sale	25,950	20,711
U.S. Treasury and government agencies | Level 1 | Fair Value, Recurring
Assets
Investment securities – available for sale	21,997	16,675
U.S. Treasury and government agencies | Level 2 | Fair Value, Recurring
Assets
Investment securities – available for sale	3,953	4,036
Residential mortgage-backed | Mortgage-backed Securities Agency | Fair Value, Recurring
Assets
Investment securities – available for sale	51,554	48,911
Residential mortgage-backed | Mortgage-backed Securities Non-agency | Fair Value, Recurring
Assets
Investment securities – available for sale	1,424	1,501
Residential mortgage-backed | Level 2 | Mortgage-backed Securities Agency | Fair Value, Recurring
Assets
Investment securities – available for sale	51,554	48,911
Residential mortgage-backed | Level 2 | Mortgage-backed Securities Non-agency | Fair Value, Recurring
Assets
Investment securities – available for sale	108	136
Residential mortgage-backed | Level 3 | Mortgage-backed Securities Non-agency | Fair Value, Recurring
Assets
Investment securities – available for sale	1,316	1,365
Commercial mortgage-backed | Mortgage-backed Securities Agency | Fair Value, Recurring
Assets
Investment securities – available for sale	2,284	2,688
Commercial mortgage-backed | Mortgage-backed Securities Non-agency | Fair Value, Recurring
Assets
Investment securities – available for sale	4,236	3,689
Commercial mortgage-backed | Level 2 | Mortgage-backed Securities Agency | Fair Value, Recurring
Assets
Investment securities – available for sale	2,284	2,688
Commercial mortgage-backed | Level 2 | Mortgage-backed Securities Non-agency | Fair Value, Recurring
Assets
Investment securities – available for sale	4,225	3,678
Commercial mortgage-backed | Level 3 | Mortgage-backed Securities Non-agency | Fair Value, Recurring
Assets
Investment securities – available for sale	11	11
Asset-backed | Fair Value, Recurring
Assets
Investment securities – available for sale	6,041	5,150
Asset-backed | Level 2 | Fair Value, Recurring
Assets
Investment securities – available for sale	5,847	4,951
Asset-backed | Level 3 | Fair Value, Recurring
Assets
Investment securities – available for sale	194	199
Other | Fair Value, Recurring
Assets
Investment securities – available for sale	5,310	4,708
Other | Level 2 | Fair Value, Recurring
Assets
Investment securities – available for sale	5,238	4,636
Other | Level 3 | Fair Value, Recurring
Assets
Investment securities – available for sale	72	72
Residential mortgage servicing rights | Fair Value, Recurring
Assets
Mortgage servicing rights	979	673
Residential mortgage servicing rights | Level 3 | Fair Value, Recurring
Assets
Mortgage servicing rights	979	673
Commercial mortgage servicing rights | Fair Value, Recurring
Assets
Mortgage servicing rights	701	569
Commercial mortgage servicing rights | Level 3 | Fair Value, Recurring
Assets
Mortgage servicing rights	$ 701	$ 569

Fair Value (Reconciliation of R

Fair Value (Reconciliation of Recurring Fair Value Measurements) (Details) - Fair Value, Recurring - Level 3 - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2021	Mar. 31, 2020
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Beginning Balance	$ 5,137	$ 5,395
Included in Earnings	497	(486)
Included in other comprehensive income	19	(256)
Purchases	249	132
Sales	(46)	(85)
Issuances	31	21
Settlements	(271)	159
Transfers into Level 3	3	4
Transfers out of Level 3	(8)	(11)
Ending Balance	5,611	4,873
Unrealized gains/losses on assets held on Consolidated Balance Sheet	487	(524)
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Beginning Balance	318	344
Included in Earnings	21	10
Purchases
Sales	2	1
Issuances	31	23
Settlements	(70)	(116)
Transfers into Level 3		2
Transfers out of Level 3		(2)
Ending Balance	302	262
Unrealized gains/losses on liabilities held on Consolidated Balance Sheet	(26)	4
Fair Value Additional Information [Abstract]
Net gains (losses) included in earnings (realized and unrealized) relating to Level 3 assets and liabilities	476	(496)
Net unrealized gains (losses) relating to Level 3 assets and liabilities	513	(528)
Loans held for sale | Residential mortgage loans held for sale
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Beginning Balance	163	2
Included in Earnings	1
Purchases	35	2
Sales	(16)	(1)
Settlements	(16)
Transfers into Level 3	3	4
Transfers out of Level 3	(5)	(3)
Ending Balance	165	4
Loans held for sale | Commercial mortgage loans held for sale
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Beginning Balance	57	64
Included in Earnings	(1)	(1)
Settlements		(3)
Ending Balance	56	60
Unrealized gains/losses on assets held on Consolidated Balance Sheet		(1)
Securities available for sale
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Beginning Balance	1,647	2,055
Included in Earnings	10	18
Included in other comprehensive income	19	(256)
Purchases	1	4
Settlements	(84)	(104)
Ending Balance	1,593	1,717
Securities available for sale | Residential mortgage-backed
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Beginning Balance	1,365	1,741
Included in Earnings	9	16
Included in other comprehensive income	16	(222)
Settlements	(74)	(93)
Ending Balance	1,316	1,442
Securities available for sale | Commercial mortgage-backed
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Beginning Balance	11
Ending Balance	11
Securities available for sale | Asset-backed
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Beginning Balance	199	240
Included in Earnings	1	2
Included in other comprehensive income	3	(29)
Settlements	(9)	(11)
Ending Balance	194	202
Securities available for sale | Other
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Beginning Balance	72	74
Included in other comprehensive income		(5)
Purchases	1	4
Settlements	(1)
Ending Balance	72	73
Loans
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Beginning Balance	647	300
Included in Earnings	10	11
Purchases	88	16
Sales	(3)	(26)
Issuances
Settlements	(28)	362
Transfers out of Level 3	(3)	(8)
Ending Balance	711	655
Unrealized gains/losses on assets held on Consolidated Balance Sheet	11	11
Equity investments
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Beginning Balance	1,263	1,276
Included in Earnings	67	(69)
Purchases	40	71
Sales	(27)	(58)
Ending Balance	1,343	1,220
Unrealized gains/losses on assets held on Consolidated Balance Sheet	63	(64)
Mortgage Servicing Rights | Residential mortgage loans held for sale
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Beginning Balance	673	995
Included in Earnings	295	(379)
Purchases	71	18
Issuances	13	10
Settlements	(73)	(39)
Ending Balance	979	605
Unrealized gains/losses on assets held on Consolidated Balance Sheet	295	(379)
Mortgage Servicing Rights | Commercial mortgage loans held for sale
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Beginning Balance	569	649
Included in Earnings	129	(167)
Purchases	13	19
Issuances	18	11
Settlements	(28)	(35)
Ending Balance	701	477
Unrealized gains/losses on assets held on Consolidated Balance Sheet	129	(166)
Derivative
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Beginning Balance	118	54
Included in Earnings	(14)	101
Purchases	1	2
Settlements	(42)	(22)
Ending Balance	63	135
Unrealized gains/losses on assets held on Consolidated Balance Sheet	(11)	75
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Beginning Balance	273	200
Included in Earnings	(14)	8
Sales	2	1
Settlements	(34)	(24)
Ending Balance	227	185
Unrealized gains/losses on liabilities held on Consolidated Balance Sheet	(30)	10
Other borrowed funds
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Beginning Balance	2	7
Issuances	1	12
Settlements	(1)	(14)
Ending Balance	2	5
Other liabilities
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Beginning Balance	43	137
Included in Earnings	35	2
Issuances	30	11
Settlements	(35)	(78)
Transfers into Level 3		2
Transfers out of Level 3		(2)
Ending Balance	73	72
Unrealized gains/losses on liabilities held on Consolidated Balance Sheet	$ 4	$ (6)

Fair Value (Fair Value Measurem

Fair Value (Fair Value Measurements- Recurring Quantitative Information) (Details) - Fair Value, Recurring $ in Millions	3 Months Ended	12 Months Ended
	Mar. 31, 2021USD ($)	Dec. 31, 2020USD ($)
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Recurring assets - fair value	$ 111,263	$ 103,035
Financial and nonfinancial liabilities, fair value disclosure	(3,934)	(3,506)
Level 3
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Recurring assets - fair value	5,611	5,137
Financial and nonfinancial liabilities, fair value disclosure	(302)	(318)
Total recurring assets net of recurring liabilities - fair value	5,309	4,819
Level 3 | Loans held for sale | Commercial mortgage loans held for sale | Discounted Cash Flow, Spread Over the Benchmark Curve
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Recurring assets - fair value	$ 56	$ 57
Level 3 | Loans held for sale | Commercial mortgage loans held for sale | Discounted cash flow | Minimum
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Spread over the benchmark curve	6.20%	6.30%
Level 3 | Loans held for sale | Commercial mortgage loans held for sale | Discounted cash flow | Maximum
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Spread over the benchmark curve	63.50%	52.75%
Level 3 | Loans held for sale | Commercial mortgage loans held for sale | Discounted cash flow | Weighted Average
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Spread over the benchmark curve	40.38%	34.06%
Level 3 | Securities available for sale | Residential mortgage-backed | Priced By A Third Party Vendor Using Discounted Cash Flow Pricing Model
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Recurring assets - fair value	$ 1,316	$ 1,365
Level 3 | Securities available for sale | Residential mortgage-backed | Priced By A Third Party Vendor Using Discounted Cash Flow Pricing Model | Weighted Average
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Spread over the benchmark curve	1.55%	2.42%
Level 3 | Securities available for sale | Asset-backed | Priced By A Third Party Vendor Using Discounted Cash Flow Pricing Model
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Recurring assets - fair value	$ 194	$ 199
Level 3 | Securities available for sale | Asset-backed | Priced By A Third Party Vendor Using Discounted Cash Flow Pricing Model | Weighted Average
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Spread over the benchmark curve	1.97%	2.91%
Level 3 | Loans - Residential real estate | Discounted cash flow
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Recurring assets - fair value	$ 130	$ 132
Level 3 | Loans - Residential real estate | Consensus Pricing
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Recurring assets - fair value	$ 429	$ 434
Level 3 | Loans - Residential real estate | Consensus Pricing | Minimum
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Cumulative default rate	3.60%	3.60%
Level 3 | Loans - Residential real estate | Consensus Pricing | Maximum
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Cumulative default rate	100.00%	100.00%
Level 3 | Loans - Residential real estate | Consensus Pricing | Weighted Average
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Cumulative default rate	81.50%	82.10%
Level 3 | Loans - Residential real estate | Consensus Pricing | Minimum
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Credit and liquidity discount		17.50%
Level 3 | Loans - Residential real estate | Consensus Pricing | Maximum
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Credit and liquidity discount		97.00%
Level 3 | Loans - Residential real estate | Consensus Pricing | Weighted Average
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Credit and liquidity discount		57.70%
Level 3 | Loans - Home equity | Consensus Pricing
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Recurring assets - fair value	$ 20	$ 21
Level 3 | Loans - Home equity | Consensus Pricing | Minimum
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Cumulative default rate	3.60%	3.60%
Level 3 | Loans - Home equity | Consensus Pricing | Maximum
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Cumulative default rate	100.00%	100.00%
Level 3 | Loans - Home equity | Consensus Pricing | Weighted Average
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Cumulative default rate	85.50%	88.50%
Level 3 | Loans - Home equity | Consensus Pricing
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Recurring assets - fair value	$ 132	$ 60
Level 3 | Loans - Home equity | Consensus Pricing | Minimum
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Credit and liquidity discount	4.70%
Level 3 | Loans - Home equity | Consensus Pricing | Maximum
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Credit and liquidity discount	92.00%
Level 3 | Loans - Home equity | Consensus Pricing | Weighted Average
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Credit and liquidity discount	44.00%
Level 3 | Equity investments | Multiple of adjusted earnings
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Recurring assets - fair value	$ 1,343	$ 1,263
Level 3 | Equity investments | Multiple of adjusted earnings | Minimum
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Multiple of earnings	0.040	0.050
Level 3 | Equity investments | Multiple of adjusted earnings | Maximum
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Multiple of earnings	0.201	0.159
Level 3 | Equity investments | Multiple of adjusted earnings | Weighted Average
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Multiple of earnings	0.088	0.087
Level 3 | Mortgage Servicing Rights | Commercial mortgage loans held for sale | Discounted cash flow
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Recurring assets - fair value	$ 701	$ 569
Level 3 | Mortgage Servicing Rights | Residential mortgage loans held for sale | Discounted cash flow
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Recurring assets - fair value	$ 979	$ 673
Level 3 | Mortgage Servicing Rights | Residential mortgage loans held for sale | Discounted cash flow | Minimum
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Spread over the benchmark curve	3.83%	3.25%
Level 3 | Mortgage Servicing Rights | Residential mortgage loans held for sale | Discounted cash flow | Maximum
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Spread over the benchmark curve	28.93%	27.83%
Level 3 | Mortgage Servicing Rights | Residential mortgage loans held for sale | Discounted cash flow | Weighted Average
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Spread over the benchmark curve	9.44%	9.22%
Level 3 | Derivative | Visa Class B Swap | Discounted cash flow
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Financial and nonfinancial liabilities, fair value disclosure	$ (201)	$ (252)
Estimated growth rate of Visa Class A share price	16.00%	16.00%
Level 3 | Derivative | Visa Class B Swap | Discounted cash flow | Weighted Average
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Estimated conversion factor of Class B shares into Class A shares	162.30%	162.30%
Level 3 | Insignificant Assets, Net of Liabilities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Recurring assets - fair value	$ 210
Financial and nonfinancial liabilities, fair value disclosure		$ 298
Measurement Input, Constant Prepayment Rate | Level 3 | Securities available for sale | Residential mortgage-backed | Priced By A Third Party Vendor Using Discounted Cash Flow Pricing Model | Minimum
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Debt securities, measurement input	0.010	0.010
Measurement Input, Constant Prepayment Rate | Level 3 | Securities available for sale | Residential mortgage-backed | Priced By A Third Party Vendor Using Discounted Cash Flow Pricing Model | Maximum
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Debt securities, measurement input	0.376	0.376
Measurement Input, Constant Prepayment Rate | Level 3 | Securities available for sale | Residential mortgage-backed | Priced By A Third Party Vendor Using Discounted Cash Flow Pricing Model | Weighted Average
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Debt securities, measurement input	0.102	0.086
Measurement Input, Constant Prepayment Rate | Level 3 | Securities available for sale | Asset-backed | Priced By A Third Party Vendor Using Discounted Cash Flow Pricing Model | Minimum
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Debt securities, measurement input	0.010	0.010
Measurement Input, Constant Prepayment Rate | Level 3 | Securities available for sale | Asset-backed | Priced By A Third Party Vendor Using Discounted Cash Flow Pricing Model | Maximum
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Debt securities, measurement input	0.400	0.220
Measurement Input, Constant Prepayment Rate | Level 3 | Securities available for sale | Asset-backed | Priced By A Third Party Vendor Using Discounted Cash Flow Pricing Model | Weighted Average
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Debt securities, measurement input	0.084	0.074
Measurement Input, Constant Prepayment Rate | Level 3 | Mortgage Servicing Rights | Commercial mortgage loans held for sale | Discounted cash flow | Minimum
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Servicing asset, measurement input	0.041	0.040
Measurement Input, Constant Prepayment Rate | Level 3 | Mortgage Servicing Rights | Commercial mortgage loans held for sale | Discounted cash flow | Maximum
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Servicing asset, measurement input	0.136	0.161
Measurement Input, Constant Prepayment Rate | Level 3 | Mortgage Servicing Rights | Commercial mortgage loans held for sale | Discounted cash flow | Weighted Average
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Servicing asset, measurement input	0.049	0.049
Measurement Input, Constant Prepayment Rate | Level 3 | Mortgage Servicing Rights | Residential mortgage loans held for sale | Discounted cash flow | Minimum
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Servicing asset, measurement input	0	0
Measurement Input, Constant Prepayment Rate | Level 3 | Mortgage Servicing Rights | Residential mortgage loans held for sale | Discounted cash flow | Maximum
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Servicing asset, measurement input	0.314	0.775
Measurement Input, Constant Prepayment Rate | Level 3 | Mortgage Servicing Rights | Residential mortgage loans held for sale | Discounted cash flow | Weighted Average
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Servicing asset, measurement input	0.107	0.211
Measurement Input, Constant Default Rate | Level 3 | Securities available for sale | Residential mortgage-backed | Priced By A Third Party Vendor Using Discounted Cash Flow Pricing Model | Minimum
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Debt securities, measurement input	0	0
Measurement Input, Constant Default Rate | Level 3 | Securities available for sale | Residential mortgage-backed | Priced By A Third Party Vendor Using Discounted Cash Flow Pricing Model | Maximum
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Debt securities, measurement input	0.188	0.122
Measurement Input, Constant Default Rate | Level 3 | Securities available for sale | Residential mortgage-backed | Priced By A Third Party Vendor Using Discounted Cash Flow Pricing Model | Weighted Average
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Debt securities, measurement input	0.060	0.047
Measurement Input, Constant Default Rate | Level 3 | Securities available for sale | Asset-backed | Priced By A Third Party Vendor Using Discounted Cash Flow Pricing Model | Minimum
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Debt securities, measurement input	0.014	0.010
Measurement Input, Constant Default Rate | Level 3 | Securities available for sale | Asset-backed | Priced By A Third Party Vendor Using Discounted Cash Flow Pricing Model | Maximum
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Debt securities, measurement input	0.060	0.060
Measurement Input, Constant Default Rate | Level 3 | Securities available for sale | Asset-backed | Priced By A Third Party Vendor Using Discounted Cash Flow Pricing Model | Weighted Average
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Debt securities, measurement input	0.029	0.033
Measurement Input, Loss Severity | Level 3 | Securities available for sale | Residential mortgage-backed | Priced By A Third Party Vendor Using Discounted Cash Flow Pricing Model | Minimum
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Debt securities, measurement input	0.250	0.250
Measurement Input, Loss Severity | Level 3 | Securities available for sale | Residential mortgage-backed | Priced By A Third Party Vendor Using Discounted Cash Flow Pricing Model | Maximum
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Debt securities, measurement input	0.957	0.957
Measurement Input, Loss Severity | Level 3 | Securities available for sale | Residential mortgage-backed | Priced By A Third Party Vendor Using Discounted Cash Flow Pricing Model | Weighted Average
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Debt securities, measurement input	0.486	0.488
Measurement Input, Loss Severity | Level 3 | Securities available for sale | Asset-backed | Priced By A Third Party Vendor Using Discounted Cash Flow Pricing Model | Minimum
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Debt securities, measurement input	0.300	0.300
Measurement Input, Loss Severity | Level 3 | Securities available for sale | Asset-backed | Priced By A Third Party Vendor Using Discounted Cash Flow Pricing Model | Maximum
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Debt securities, measurement input	1	1
Measurement Input, Loss Severity | Level 3 | Securities available for sale | Asset-backed | Priced By A Third Party Vendor Using Discounted Cash Flow Pricing Model | Weighted Average
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Debt securities, measurement input	0.553	0.581
Measurement Input, Loss Severity | Level 3 | Loans - Residential real estate | Discounted cash flow | Weighted Average
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Loans, measurement input	0.080	0.080
Measurement Input, Loss Severity | Level 3 | Loans - Residential real estate | Consensus Pricing | Minimum
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Loans, measurement input	0	0
Measurement Input, Loss Severity | Level 3 | Loans - Residential real estate | Consensus Pricing | Maximum
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Loans, measurement input	1	1
Measurement Input, Loss Severity | Level 3 | Loans - Residential real estate | Consensus Pricing | Weighted Average
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Loans, measurement input	0.100	0.112
Measurement Input, Loss Severity | Level 3 | Loans - Home equity | Consensus Pricing | Minimum
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Loans, measurement input	0	0
Measurement Input, Loss Severity | Level 3 | Loans - Home equity | Consensus Pricing | Maximum
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Loans, measurement input	0.984	0.984
Measurement Input, Loss Severity | Level 3 | Loans - Home equity | Consensus Pricing | Weighted Average
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Loans, measurement input	0.315	0.333
Measurement Input, Discount Rate | Level 3 | Loans - Residential real estate | Discounted cash flow | Weighted Average
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Loans, measurement input	0.032	0.032
Measurement Input, Discount Rate | Level 3 | Loans - Residential real estate | Consensus Pricing | Minimum
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Loans, measurement input	0.048	0.048
Measurement Input, Discount Rate | Level 3 | Loans - Residential real estate | Consensus Pricing | Maximum
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Loans, measurement input	0.068	0.068
Measurement Input, Discount Rate | Level 3 | Loans - Residential real estate | Consensus Pricing | Weighted Average
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Loans, measurement input	0.051	0.051
Measurement Input, Discount Rate | Level 3 | Loans - Home equity | Consensus Pricing | Minimum
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Loans, measurement input	0.048	0.048
Measurement Input, Discount Rate | Level 3 | Loans - Home equity | Consensus Pricing | Maximum
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Loans, measurement input	0.068	0.068
Measurement Input, Discount Rate | Level 3 | Loans - Home equity | Consensus Pricing | Weighted Average
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Loans, measurement input	0.062	0.063
Measurement Input, Discount Rate | Level 3 | Mortgage Servicing Rights | Commercial mortgage loans held for sale | Discounted cash flow | Minimum
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Servicing asset, measurement input	0.055	0.047
Measurement Input, Discount Rate | Level 3 | Mortgage Servicing Rights | Commercial mortgage loans held for sale | Discounted cash flow | Maximum
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Servicing asset, measurement input	0.076	0.078
Measurement Input, Discount Rate | Level 3 | Mortgage Servicing Rights | Commercial mortgage loans held for sale | Discounted cash flow | Weighted Average
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Servicing asset, measurement input	0.074	0.073

Fair Value (Nonrecurring Fair V

Fair Value (Nonrecurring Fair Value Measurements) (Details) - Fair Value, Nonrecurring - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2021	Mar. 31, 2020	Dec. 31, 2020
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Nonrecurring Assets - Fair Value	$ 596		$ 370
Nonrecurring Assets - Gains (Losses)	(36)	$ (30)
Level 3 | Nonaccrual loans
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Nonrecurring Assets - Fair Value	345		332
Nonrecurring Assets - Gains (Losses)	(17)	(28)
Level 3 | OREO and foreclosed assets
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Nonrecurring Assets - Fair Value	2		18
Nonrecurring Assets - Gains (Losses)		(1)
Level 3 | Long-lived assets
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Nonrecurring Assets - Fair Value	6		$ 20
Nonrecurring Assets - Gains (Losses)	(2)	$ (1)
Level 2 | Loans held for sale
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Nonrecurring Assets - Fair Value	243
Nonrecurring Assets - Gains (Losses)	$ (17)

Fair Value (Fair Value Option -

Fair Value (Fair Value Option - Fair Value and Principal Balances) (Details) - USD ($) $ in Millions	Mar. 31, 2021	Dec. 31, 2020
Other assets
Fair Value, Option, Quantitative Disclosures [Line Items]
Fair value - assets	$ 93	$ 81
Aggregate unpaid principal balance of assets for which fair value option was elected	91	69
Fair value option aggregate difference assets	2	12
Other borrowed funds
Fair Value, Option, Quantitative Disclosures [Line Items]
Fair value of liabilities for which fair value option was elected	28	32
Aggregate unpaid principal balance, other borrowed funds	28	33
Difference, Other borrowed funds		(1)
Residential mortgage loans held for sale | Loans held for sale
Fair Value, Option, Quantitative Disclosures [Line Items]
Fair value - assets	1,252	855
Aggregate unpaid principal balance of assets for which fair value option was elected	1,229	821
Fair value option aggregate difference assets	23	34
Residential mortgage loans held for sale | Loans
Fair Value, Option, Quantitative Disclosures [Line Items]
Fair value - assets	1,441	1,365
Aggregate unpaid principal balance of assets for which fair value option was elected	1,737	1,645
Fair value option aggregate difference assets	(296)	(280)
Residential mortgage loans held for sale | Accruing loans less than 90 days past due | Loans held for sale
Fair Value, Option, Quantitative Disclosures [Line Items]
Fair value - assets	1,204	831
Aggregate unpaid principal balance of assets for which fair value option was elected	1,172	793
Fair value option aggregate difference assets	32	38
Residential mortgage loans held for sale | Accruing loans less than 90 days past due | Loans
Fair Value, Option, Quantitative Disclosures [Line Items]
Fair value - assets	622	519
Aggregate unpaid principal balance of assets for which fair value option was elected	632	530
Fair value option aggregate difference assets	(10)	(11)
Residential mortgage loans held for sale | Accruing loans 90 days or more past due | Loans held for sale
Fair Value, Option, Quantitative Disclosures [Line Items]
Fair value - assets	3	4
Aggregate unpaid principal balance of assets for which fair value option was elected	3	4
Residential mortgage loans held for sale | Accruing loans 90 days or more past due | Loans
Fair Value, Option, Quantitative Disclosures [Line Items]
Fair value - assets	246	283
Aggregate unpaid principal balance of assets for which fair value option was elected	260	295
Fair value option aggregate difference assets	(14)	(12)
Residential mortgage loans held for sale | Nonaccrual loans | Loans held for sale
Fair Value, Option, Quantitative Disclosures [Line Items]
Fair value - assets	45	20
Aggregate unpaid principal balance of assets for which fair value option was elected	54	24
Fair value option aggregate difference assets	(9)	(4)
Residential mortgage loans held for sale | Nonaccrual loans | Loans
Fair Value, Option, Quantitative Disclosures [Line Items]
Fair value - assets	573	563
Aggregate unpaid principal balance of assets for which fair value option was elected	845	820
Fair value option aggregate difference assets	(272)	(257)
Commercial real estate | Loans held for sale
Fair Value, Option, Quantitative Disclosures [Line Items]
Fair value - assets	385	362
Aggregate unpaid principal balance of assets for which fair value option was elected	402	376
Fair value option aggregate difference assets	(17)	(14)
Commercial real estate | Accruing loans less than 90 days past due | Loans held for sale
Fair Value, Option, Quantitative Disclosures [Line Items]
Fair value - assets	380	357
Aggregate unpaid principal balance of assets for which fair value option was elected	396	370
Fair value option aggregate difference assets	(16)	(13)
Commercial real estate | Nonaccrual loans | Loans held for sale
Fair Value, Option, Quantitative Disclosures [Line Items]
Fair value - assets	5	5
Aggregate unpaid principal balance of assets for which fair value option was elected	6	6
Fair value option aggregate difference assets	$ (1)	$ (1)

Fair Value (Fair Value Option_2

Fair Value (Fair Value Option - Changes in Fair Value) (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2021	Mar. 31, 2020
Loans held for sale | Residential mortgage loans held for sale
Fair Value, Option, Quantitative Disclosures [Line Items]
Gains (losses) - FVO: changes in fair value	$ 16	$ 46
Loans held for sale | Commercial mortgage loans held for sale
Fair Value, Option, Quantitative Disclosures [Line Items]
Gains (losses) - FVO: changes in fair value	20	48
Loans
Fair Value, Option, Quantitative Disclosures [Line Items]
Gains (losses) - FVO: changes in fair value	14	18
Other assets
Fair Value, Option, Quantitative Disclosures [Line Items]
Gains (losses) - FVO: changes in fair value	$ 14	$ (36)

Fair Value (Additional Fair Val

Fair Value (Additional Fair Value Information Related To Financial Instruments) (Details) - USD ($) $ in Millions	Mar. 31, 2021	Dec. 31, 2020
Financial Instruments, Financial Assets, Balance Sheet Groupings
Securities held to maturity	$ 1,559	$ 1,605
Carrying Amount
Financial Instruments, Financial Assets, Balance Sheet Groupings
Cash and due from banks	7,455	7,017
Interest-earning deposits with banks	86,161	85,173
Securities held to maturity	1,459	1,445
Net loans (excludes leases)	224,468	228,788
Other assets	3,783	3,601
Total assets	323,326	326,024
Financial Instruments, Financial Liabilities, Balance Sheet Groupings
Time deposits	18,813	19,692
Borrowed funds	32,192	36,488
Unfunded loan commitments and letters of credit	507	584
Other liabilities	486	413
Total liabilities	51,998	57,177
Fair Value
Financial Instruments, Financial Assets, Balance Sheet Groupings
Cash and due from banks	7,455	7,017
Interest-earning deposits with banks	86,161	85,173
Securities held to maturity	1,559	1,604
Net loans (excludes leases)	228,650	233,688
Other assets	3,782	3,600
Total assets	327,607	331,082
Financial Instruments, Financial Liabilities, Balance Sheet Groupings
Time deposits	18,651	19,662
Borrowed funds	32,790	37,192
Unfunded loan commitments and letters of credit	507	584
Other liabilities	486	413
Total liabilities	52,434	57,851
Fair Value | Level 1
Financial Instruments, Financial Assets, Balance Sheet Groupings
Cash and due from banks	7,455	7,017
Securities held to maturity	874	920
Total assets	8,329	7,937
Fair Value | Level 2
Financial Instruments, Financial Assets, Balance Sheet Groupings
Interest-earning deposits with banks	86,161	85,173
Securities held to maturity	485	489
Other assets	3,780	3,559
Total assets	90,426	89,221
Financial Instruments, Financial Liabilities, Balance Sheet Groupings
Time deposits	18,651	19,662
Borrowed funds	31,129	35,571
Other liabilities	486	413
Total liabilities	50,266	55,646
Fair Value | Level 3
Financial Instruments, Financial Assets, Balance Sheet Groupings
Securities held to maturity	200	195
Net loans (excludes leases)	228,650	233,688
Other assets	2	41
Total assets	228,852	233,924
Financial Instruments, Financial Liabilities, Balance Sheet Groupings
Borrowed funds	1,661	1,621
Unfunded loan commitments and letters of credit	507	584
Total liabilities	$ 2,168	$ 2,205

Financial Derivatives (Total De

Financial Derivatives (Total Derivatives) (Details) - USD ($) $ in Millions	Mar. 31, 2021	Dec. 31, 2020
Derivative [Line Items]
Derivative, notional amount	$ 464,552	$ 466,707
Derivative asset, fair value	4,916	6,533
Derivative liability, fair value	3,023	2,756
Derivative asset, fair value offset amount	904	720
Derivative liability, fair value offset amount	904	720
Derivative asset, cash collateral	716	1,434
Derivative liability, cash collateral	1,295	1,452
Derivative asset, net fair value	3,296	4,379
Derivative liability, net fair value	824	584
Commodity contracts:
Derivative [Line Items]
Derivative asset, fair value	678	411
Derivative liability, fair value	653	384
Derivative asset, cash collateral	8	4
Derivative liability, cash collateral	407	103
Foreign exchange contracts and other
Derivative [Line Items]
Derivative asset, fair value	215	271
Derivative liability, fair value	442	590
Derivative asset, cash collateral	8	4
Derivative liability, cash collateral	96	170
Designated as Hedging Instruments under GAAP
Derivative [Line Items]
Derivative, notional amount	58,900	48,103
Derivative asset, fair value	14	14
Derivative liability, fair value	129	22
Designated as Hedging Instruments under GAAP | Fair value hedges | Interest Rate Contracts
Derivative [Line Items]
Derivative, notional amount	22,802	24,153
Designated as Hedging Instruments under GAAP | Cash flow hedges | Interest Rate Contracts
Derivative [Line Items]
Derivative, notional amount	35,017	22,875
Derivative asset, fair value	14	14
Derivative liability, fair value	99
Designated as Hedging Instruments under GAAP | Net investment hedges | Foreign exchange contracts:
Derivative [Line Items]
Derivative, notional amount	1,081	1,075
Derivative asset, fair value
Derivative liability, fair value	30	22
Not Designated as Hedging Instrument under GAAP
Derivative [Line Items]
Derivative, notional amount	405,652	418,604
Derivative asset, fair value	4,902	6,519
Derivative liability, fair value	2,894	2,734
Not Designated as Hedging Instrument under GAAP | Mortgage Banking | Interest Rate Contracts
Derivative [Line Items]
Derivative, notional amount	49,143	66,471
Derivative asset, fair value	202	158
Derivative liability, fair value	98	79
Not Designated as Hedging Instrument under GAAP | Mortgage Banking | Swaps | Interest Rate Contracts
Derivative [Line Items]
Derivative, notional amount	26,974	50,511
Derivative asset, fair value
Not Designated as Hedging Instrument under GAAP | Mortgage Banking | Futures | Interest Rate Contracts
Derivative [Line Items]
Derivative, notional amount	2,883	2,841
Not Designated as Hedging Instrument under GAAP | Mortgage Banking | Mortgage-backed commitments | Interest Rate Contracts
Derivative [Line Items]
Derivative, notional amount	14,979	11,288
Derivative asset, fair value	144	147
Derivative liability, fair value	82	77
Not Designated as Hedging Instrument under GAAP | Mortgage Banking | Other | Interest Rate Contracts
Derivative [Line Items]
Derivative, notional amount	4,307	1,831
Derivative asset, fair value	58	11
Derivative liability, fair value	16	2
Not Designated as Hedging Instrument under GAAP | Customer Contracts
Derivative [Line Items]
Derivative, notional amount	345,673	341,202
Derivative asset, fair value	4,671	6,357
Derivative liability, fair value	2,556	2,330
Not Designated as Hedging Instrument under GAAP | Customer Contracts | Interest Rate Contracts
Derivative [Line Items]
Derivative, notional amount	309,211	305,663
Derivative asset, fair value	3,807	5,679
Derivative liability, fair value	1,731	1,703
Not Designated as Hedging Instrument under GAAP | Customer Contracts | Commodity contracts:
Derivative [Line Items]
Derivative, notional amount	10,279	8,919
Derivative asset, fair value	678	411
Derivative liability, fair value	653	384
Not Designated as Hedging Instrument under GAAP | Customer Contracts | Foreign exchange contracts and other
Derivative [Line Items]
Derivative, notional amount	26,183	26,620
Derivative asset, fair value	186	267
Derivative liability, fair value	172	243
Not Designated as Hedging Instrument under GAAP | Customer Contracts | Swaps | Interest Rate Contracts
Derivative [Line Items]
Derivative, notional amount	278,447	280,125
Derivative asset, fair value	3,614	5,475
Derivative liability, fair value	1,578	1,601
Not Designated as Hedging Instrument under GAAP | Customer Contracts | Swaps | Commodity contracts:
Derivative [Line Items]
Derivative, notional amount	7,032	6,149
Derivative asset, fair value	558	350
Derivative liability, fair value	533	323
Not Designated as Hedging Instrument under GAAP | Customer Contracts | Futures | Interest Rate Contracts
Derivative [Line Items]
Derivative, notional amount	965	1,235
Not Designated as Hedging Instrument under GAAP | Customer Contracts | Mortgage-backed commitments | Interest Rate Contracts
Derivative [Line Items]
Derivative, notional amount	7,324	4,178
Derivative asset, fair value	36	11
Derivative liability, fair value	30	14
Not Designated as Hedging Instrument under GAAP | Customer Contracts | Other | Interest Rate Contracts
Derivative [Line Items]
Derivative, notional amount	22,475	20,125
Derivative asset, fair value	157	193
Derivative liability, fair value	123	88
Not Designated as Hedging Instrument under GAAP | Customer Contracts | Other | Commodity contracts:
Derivative [Line Items]
Derivative, notional amount	3,247	2,770
Derivative asset, fair value	120	61
Derivative liability, fair value	120	61
Not Designated as Hedging Instrument under GAAP | Other Risk Management Activity | Foreign exchange contracts and other
Derivative [Line Items]
Derivative, notional amount	10,836	10,931
Derivative asset, fair value	29	4
Derivative liability, fair value	$ 240	$ 325

Financial Derivatives (Narrativ

Financial Derivatives (Narrative) (Details) - USD ($)	3 Months Ended
	Mar. 31, 2021	Mar. 31, 2020
Derivative [Line Items]
Cash and securities held to collateralize net derivative assets	$ 1,500,000,000
Cash and securities pledged to collateralize net derivative liabilities	2,000,000,000
Derivative, net liability position, aggregate fair value	1,800,000,000
Collateral already posted, aggregate fair value	1,300,000,000
Maximum amount of collateral PNC would have been required to post if the credit-risk-related contingent features underlying these agreements had been triggered	$ 500,000,000
Cash flow hedges | Interest Rate Contracts
Derivative [Line Items]
Maximum length of time hedged in cash flow hedge	10 years
Net investment hedges | Foreign exchange contracts:
Derivative [Line Items]
Derivative instruments, gain (loss) reclassified from accumulated oci into income, effective portion, net	$ (8,000,000)	$ 75,000,000
Gain loss from components excluded from assessment of net investment hedge effectiveness net	$ 0	$ 0

Financial Derivatives (Gains (L

Financial Derivatives (Gains (Losses) Recognized on Fair Value and Cash Flow Hedges in the Consolidated Income Statement) (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2021	Mar. 31, 2020
Derivative Instruments, Gain (Loss) [Line Items]
Loans	$ 1,996	$ 2,480
Investment Securities	421	582
Borrowed Funds	95	314
Noninterest income	1,872	1,825
Other
Derivative Instruments, Gain (Loss) [Line Items]
Noninterest income	483	343
Fair value hedges | Designated as Hedging Instrument | Investment Securities | Interest Income
Derivative Instruments, Gain (Loss) [Line Items]
Hedged items	(8)	234
Derivatives	9	(231)
Amounts related to interest settlements on derivatives	(1)	(2)
Fair value hedges | Designated as Hedging Instrument | Borrowed Funds | Interest Expense
Derivative Instruments, Gain (Loss) [Line Items]
Hedged items	646	(1,361)
Derivatives	(664)	1,339
Amounts related to interest settlements on derivatives	134	59
Cash flow hedges | Designated as Hedging Instrument | Loans | Interest Income
Derivative Instruments, Gain (Loss) [Line Items]
Amount of derivative gains (losses) reclassified from AOCI	100	42
Cash flow hedges | Designated as Hedging Instrument | Investment Securities | Interest Income
Derivative Instruments, Gain (Loss) [Line Items]
Amount of derivative gains (losses) reclassified from AOCI	22	2
Cash flow hedges | Designated as Hedging Instrument | Other | Noninterest Income
Derivative Instruments, Gain (Loss) [Line Items]
Amount of derivative gains (losses) reclassified from AOCI	$ 13	$ 1

Financial Derivatives (Impact o

Financial Derivatives (Impact of Fair Value Hedge Accounting on the Carrying Value of Hedged Items) (Details) - Fair value hedges - Designated as Hedging Instruments under GAAP - USD ($) $ in Millions	Mar. 31, 2021	Dec. 31, 2020
Investment Securities
Derivative Instruments, Gain (Loss) [Line Items]
Carrying Value of the Hedged Items	$ 2,778	$ 2,785
Cumulative Fair Value Hedge Adjustment included in the Carrying Value of Hedged Items	22	30
Borrowed Funds
Derivative Instruments, Gain (Loss) [Line Items]
Carrying Value of the Hedged Items	23,936	25,797
Cumulative Fair Value Hedge Adjustment included in the Carrying Value of Hedged Items	966	1,611
Borrowed Funds Discontinued Relationships
Derivative Instruments, Gain (Loss) [Line Items]
Cumulative fair value hedge adjustment included in carrying value of hedged items	$ (100)	$ (100)

Financial Derivatives (Gains _2

Financial Derivatives (Gains (Losses) on Derivatives Not Designated As Hedging Instruments under GAAP) (Details) - Not Designated as Hedging Instrument - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2021	Mar. 31, 2020
Derivative [Line Items]
Derivative instruments not designated as hedging instruments gain (loss), net	$ (170)	$ 874
Mortgage Banking | Interest Rate Contracts
Derivative [Line Items]
Derivative instruments not designated as hedging instruments gain (loss), net	(322)	654
Customer Contracts
Derivative [Line Items]
Derivative instruments not designated as hedging instruments gain (loss), net	104	13
Customer Contracts | Interest Rate Contracts
Derivative [Line Items]
Derivative instruments not designated as hedging instruments gain (loss), net	82	2
Customer Contracts | Foreign exchange contracts and other
Derivative [Line Items]
Derivative instruments not designated as hedging instruments gain (loss), net	22	11
Other Risk Management Activity | Foreign exchange contracts and other
Derivative [Line Items]
Derivative instruments not designated as hedging instruments gain (loss), net	$ 48	$ 207

Financial Derivatives (Derivati

Financial Derivatives (Derivative Assets and Liabilities Offsetting) (Details) - USD ($) $ in Millions	Mar. 31, 2021	Dec. 31, 2020
Offsetting Derivative Assets [Abstract]
Derivative asset, gross fair value	$ 4,916	$ 6,533
Derivative Asset, Fair Value Offset Amount	904	720
Derivative asset, cash collateral	716	1,434
Derivative Asset, Net	3,296	4,379
Derivative Asset, Securities Collateral Held Under Master Netting Agreements	264	532
Derivative Asset, Fair Value, Amount Offset Against Collateral	3,032	3,847
Offsetting Derivative Liabilities [Abstract]
Derivative liability, gross fair value	3,023	2,756
Derivative liability, fair value offset amount	904	720
Derivative liability, cash collateral	1,295	1,452
Derivative liability, net	824	584
Derivative liability, fair value of collateral
Derivative liability, fair value, amount offset against collateral	824	584
Interest Rate Contracts | Over-the-counter cleared
Offsetting Derivative Assets [Abstract]
Derivative asset, gross fair value	101	48
Derivative Asset, Net	101	48
Derivative Asset, Fair Value, Amount Offset Against Collateral	101	48
Offsetting Derivative Liabilities [Abstract]
Derivative liability, gross fair value	158	42
Derivative liability, net	158	42
Derivative liability, fair value, amount offset against collateral	158	42
Interest Rate Contracts | Over-the-counter
Offsetting Derivative Assets [Abstract]
Derivative asset, gross fair value	3,922	5,803
Derivative Asset, Fair Value Offset Amount	620	430
Derivative asset, cash collateral	700	1,426
Derivative Asset, Net	2,602	3,947
Derivative Asset, Securities Collateral Held Under Master Netting Agreements	263	531
Derivative Asset, Fair Value, Amount Offset Against Collateral	2,339	3,416
Offsetting Derivative Liabilities [Abstract]
Derivative liability, gross fair value	1,770	1,740
Derivative liability, fair value offset amount	653	462
Derivative liability, cash collateral	792	1,179
Derivative liability, net	325	99
Derivative liability, fair value, amount offset against collateral	325	99
Commodity contracts:
Offsetting Derivative Assets [Abstract]
Derivative asset, gross fair value	678	411
Derivative Asset, Fair Value Offset Amount	190	209
Derivative asset, cash collateral	8	4
Derivative Asset, Net	480	198
Derivative Asset, Fair Value, Amount Offset Against Collateral	480	198
Offsetting Derivative Liabilities [Abstract]
Derivative liability, gross fair value	653	384
Derivative liability, fair value offset amount	184	182
Derivative liability, cash collateral	407	103
Derivative liability, net	62	99
Derivative liability, fair value, amount offset against collateral	62	99
Foreign exchange contracts and other
Offsetting Derivative Assets [Abstract]
Derivative asset, gross fair value	215	271
Derivative Asset, Fair Value Offset Amount	94	81
Derivative asset, cash collateral	8	4
Derivative Asset, Net	113	186
Derivative Asset, Securities Collateral Held Under Master Netting Agreements	1	1
Derivative Asset, Fair Value, Amount Offset Against Collateral	112	185
Offsetting Derivative Liabilities [Abstract]
Derivative liability, gross fair value	442	590
Derivative liability, fair value offset amount	67	76
Derivative liability, cash collateral	96	170
Derivative liability, net	279	344
Derivative liability, fair value, amount offset against collateral	$ 279	$ 344

Legal Proceedings (Narrative) (

Legal Proceedings (Narrative) (Details) $ in Millions	Mar. 31, 2021USD ($)
SEC Schedule, 12-09, Reserve, Legal | Maximum
Loss Contingencies [Line Items]
Range of possible loss not accrued	$ 100

Segment Reporting (Narrative) (

Segment Reporting (Narrative) (Details)	3 Months Ended
	Mar. 31, 2021operating_unitsegment	Jun. 30, 2020
Segment Reporting [Abstract]
Segment reporting, number of segments | segment	3
Number of distinct operating units | operating_unit	2
BlackRock, Inc. | Discontinued Operations, Disposed of by Sale
Schedule of Equity Method Investments [Line Items]
Equity method investment, ownership percentage		22.40%

Segment Reporting (Segment Repo

Segment Reporting (Segment Reporting Table) (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2021	Mar. 31, 2020
Segment Reporting Information [Line Items]
Net interest income	$ 2,348	$ 2,511
Noninterest income	1,872	1,825
Total revenue	4,220	4,336
Provision for (recapture of) credit losses	(551)	914
Depreciation and amortization	234	240
Other noninterest expense	2,340	2,303
Income from continuing operations before income taxes and noncontrolling interests	2,197	879
Income taxes (benefit)	371	120
Net income from continuing operations	1,826	759
Less: Net income attributable to noncontrolling interests	10	7
Net income from continuing operations excluding noncontrolling interests	1,816	752
Average Assets	468,220	412,436
Retail Banking
Segment Reporting Information [Line Items]
Noninterest income	654	788
Retail Banking | Operating Segments
Segment Reporting Information [Line Items]
Net interest income	1,362	1,456
Noninterest income	654	788
Total revenue	2,016	2,244
Provision for (recapture of) credit losses	(257)	445
Depreciation and amortization	63	57
Other noninterest expense	1,413	1,471
Income from continuing operations before income taxes and noncontrolling interests	797	271
Income taxes (benefit)	183	62
Net income from continuing operations	614	209
Less: Net income attributable to noncontrolling interests	7	8
Net income from continuing operations excluding noncontrolling interests	607	201
Average Assets	92,891	97,062
Corporate & Institutional Banking
Segment Reporting Information [Line Items]
Noninterest income	807	694
Corporate & Institutional Banking | Operating Segments
Segment Reporting Information [Line Items]
Net interest income	991	950
Noninterest income	807	694
Total revenue	1,798	1,644
Provision for (recapture of) credit losses	(282)	458
Depreciation and amortization	47	48
Other noninterest expense	664	674
Income from continuing operations before income taxes and noncontrolling interests	1,369	464
Income taxes (benefit)	308	94
Net income from continuing operations	1,061	370
Less: Net income attributable to noncontrolling interests	3
Net income from continuing operations excluding noncontrolling interests	1,058	370
Average Assets	170,531	172,502
Asset Management Group
Segment Reporting Information [Line Items]
Noninterest income	229	204
Asset Management Group | Operating Segments
Segment Reporting Information [Line Items]
Net interest income	93	88
Noninterest income	229	204
Total revenue	322	292
Provision for (recapture of) credit losses	(9)	3
Depreciation and amortization	4	11
Other noninterest expense	198	208
Income from continuing operations before income taxes and noncontrolling interests	129	70
Income taxes (benefit)	30	16
Net income from continuing operations	99	54
Less: Net income attributable to noncontrolling interests
Net income from continuing operations excluding noncontrolling interests	99	54
Average Assets	8,873	7,801
Other
Segment Reporting Information [Line Items]
Net interest income	(98)	17
Noninterest income	182	139
Total revenue	84	156
Provision for (recapture of) credit losses	(3)	8
Depreciation and amortization	120	124
Other noninterest expense	65	(50)
Income from continuing operations before income taxes and noncontrolling interests	(98)	74
Income taxes (benefit)	(150)	(52)
Net income from continuing operations	52	126
Less: Net income attributable to noncontrolling interests		(1)
Net income from continuing operations excluding noncontrolling interests	52	127
Average Assets	$ 195,925	$ 135,071

Fee-Based Revenue from Contra_3

Fee-Based Revenue from Contracts with Customers - Narrative (Details)	3 Months Ended
	Mar. 31, 2021segment
Revenue from Contract with Customer [Abstract]
Segment reporting, number of segments	3

Fee-Based Revenue from Contra_4

Fee-Based Revenue from Contracts with Customers - Retail Banking Noninterest Income Disaggregation (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2021	Mar. 31, 2020
Disaggregation of Revenue [Line Items]
Noninterest income	$ 1,872	$ 1,825
Retail Banking
Disaggregation of Revenue [Line Items]
Noninterest income	654	788
Retail Banking | In-Scope
Disaggregation of Revenue [Line Items]
Noninterest income	484	526
Retail Banking | Out-of-Scope
Disaggregation of Revenue [Line Items]
Noninterest income	170	262
Retail Banking | Debit card fees | In-Scope
Disaggregation of Revenue [Line Items]
Noninterest income	138	129
Retail Banking | Deposit account fees | In-Scope
Disaggregation of Revenue [Line Items]
Noninterest income	108	158
Retail Banking | Brokerage fees | In-Scope
Disaggregation of Revenue [Line Items]
Noninterest income	102	93
Retail Banking | Net credit card fees | In-Scope
Disaggregation of Revenue [Line Items]
Noninterest income	47	41
Interchange fees	120	118
Credit card reward costs	73	77
Retail Banking | Merchant services | In-Scope
Disaggregation of Revenue [Line Items]
Noninterest income	32	49
Retail Banking | Other | In-Scope
Disaggregation of Revenue [Line Items]
Noninterest income	$ 57	$ 56

Fee-Based Revenue from Contra_5

Fee-Based Revenue from Contracts with Customers - Corporate & Institutional Banking Noninterest Income Disaggregation (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2021	Mar. 31, 2020
Disaggregation of Revenue [Line Items]
Noninterest income	$ 1,872	$ 1,825
Corporate & Institutional Banking
Disaggregation of Revenue [Line Items]
Noninterest income	807	694
Corporate & Institutional Banking | In-Scope
Disaggregation of Revenue [Line Items]
Noninterest income	487	437
Corporate & Institutional Banking | Out-of-Scope
Disaggregation of Revenue [Line Items]
Noninterest income	320	257
Corporate & Institutional Banking | Treasury management fees | In-Scope
Disaggregation of Revenue [Line Items]
Noninterest income	235	216
Corporate & Institutional Banking | Capital markets fees | In-Scope
Disaggregation of Revenue [Line Items]
Noninterest income	192	175
Corporate & Institutional Banking | Commercial mortgage banking activities | In-Scope
Disaggregation of Revenue [Line Items]
Noninterest income	31	26
Corporate & Institutional Banking | Other | In-Scope
Disaggregation of Revenue [Line Items]
Noninterest income	$ 29	$ 20

Fee-Based Revenue from Contra_6

Fee-Based Revenue from Contracts with Customers - Asset Management Group Noninterest Income Disaggregation (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2021	Mar. 31, 2020
Disaggregation of Revenue [Line Items]
Noninterest income	$ 1,872	$ 1,825
Asset Management Group
Disaggregation of Revenue [Line Items]
Noninterest income	229	204
Asset Management Group | In-Scope
Disaggregation of Revenue [Line Items]
Noninterest income	226	201
Asset Management Group | Out-of-Scope
Disaggregation of Revenue [Line Items]
Noninterest income	3	3
Asset Management Group | Personal | In-Scope
Disaggregation of Revenue [Line Items]
Noninterest income	173	150
Asset Management Group | Institutional | In-Scope
Disaggregation of Revenue [Line Items]
Noninterest income	$ 53	$ 51

Subsequent Events (Details)

Subsequent Events (Details) - Subsequent Event - Senior Notes - 2.307% Senior Fixed-To-Floating Rate Notes $ in Billions	Apr. 23, 2021USD ($)
Subsequent Event [Line Items]
Debt instrument, face amount	$ 1
Interest rate	2.307%
Compounded SOFR
Subsequent Event [Line Items]
Debt instrument, basis spread on variable rate	0.97926%