10-Q

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

Form 10-Q

ý	Quarterly report pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934
	For the quarterly period ended March 31, 2018

or

¨	Transition report pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934
	For the transition period from	to

Commission File Number: 001-34034

Regions Financial Corporation

(Exact name of registrant as specified in its charter)

Delaware	63-0589368
(State or other jurisdiction of incorporation or organization)	(I.R.S. Employer Identification No.)
1900 Fifth Avenue North Birmingham, Alabama	35203
(Address of principal executive offices)	(Zip Code)

(800) 734-4667

(Registrant’s telephone number, including area code)

NOT APPLICABLE

(Former name, former address and former fiscal year, if changed since last report)

Indicate by check mark whether the registrant (1) has filed all reports required to be filed by Section 13 or 15(d) of the Securities Exchange Act of 1934 during the preceding 12 months (or for such shorter period that the registrant was required to file such reports), and (2) has been subject to such filing requirements for the past 90 days.    ý  Yes    ¨  No

Indicate by check mark whether the registrant has submitted electronically and posted on its corporate Web site, if any, every Interactive Data File required to be submitted and posted pursuant to Rule 405 of Regulation S-T (§232.405 of this chapter) during the preceding 12 months (or for such shorter period that the registrant was required to submit and post such files).    ý  Yes    ¨  No

Indicate by check mark whether the registrant is a large accelerated filer, an accelerated filer, a non-accelerated filer, smaller reporting company, or an emerging growth company. See the definitions of “large accelerated filer,” “accelerated filer,” “smaller reporting company,” and “emerging growth company” in Rule 12b-2 of the Exchange Act. (Check one): Large accelerated filer ý Accelerated filer ¨ Non-accelerated filer ¨ (Do not check if a smaller reporting company) Smaller reporting company  ¨

Emerging growth company  ¨

If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act. ¨

Indicate by check mark whether the registrant is a shell company (as defined in Rule 12b-2 of the Exchange Act).    ¨  Yes    ý  No

The number of shares outstanding of each of the issuer’s classes of common stock was 1,123,148,818 shares of common stock, par value $.01, outstanding as of May 7, 2018.

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REGIONS FINANCIAL CORPORATION

FORM 10-Q

INDEX

		Page
Part I. Financial Information
Item 1.	Financial Statements (Unaudited)
	Consolidated Balance Sheets—March 31, 2018 and December 31, 2017	8
	Consolidated Statements of Income—Three months ended March 31, 2018 and 2017	9
	Consolidated Statements of Comprehensive Income—Three months ended March 31, 2018 and 2017	10
	Consolidated Statements of Changes in Stockholders’ Equity—Three months ended March 31, 2018 and 2017	11
	Consolidated Statements of Cash Flows—Three months ended March 31, 2018 and 2017	12
	Notes to Consolidated Financial Statements	13
Item 2.	Management's Discussion and Analysis of Financial Condition and Results of Operations	52
Item 3.	Quantitative and Qualitative Disclosures about Market Risk	82
Item 4.	Controls and Procedures	82
Part II. Other Information
Item 1.	Legal Proceedings	83
Item 2.	Unregistered Sales of Equity Securities and Use of Proceeds	83
Item 6.	Exhibits	84
Signatures		85

2

Glossary of Defined Terms

Agencies - collectively, FNMA, FHLMC and GNMA.

ALCO - Asset/Liability Management Committee.

AOCI - Accumulated other comprehensive income.

ASU - Accounting Standards Update.

ATM - Automated teller machine.

Basel I - Basel Committee's 1988 Regulatory Capital Framework (First Accord).

Basel III - Basel Committee's 2010 Regulatory Capital Framework (Third Accord).

Basel III Rules - Final capital rules adopting the Basel III capital framework approved by U.S. federal

regulators in 2013.

Basel Committee - Basel Committee on Banking Supervision.

BHC - Bank Holding Company.

BITS - Technology arm of the Financial Services Roundtable.

Bank - Regions Bank.

Board - The Company’s Board of Directors.

CAP - Customer Assistance Program.

CCAR - Comprehensive Capital Analysis and Review.

CD - Certificate of deposit.

CECL - Current expected credit loss.

CEO - Chief Executive Officer.

CET1 - Common Equity Tier 1.

CFPB - Consumer Financial Protection Bureau.

Company - Regions Financial Corporation and its subsidiaries.

CPR - Constant (or Conditional) Prepayment Rate.

CRA - Community Reinvestment Act of 1977.

Dodd-Frank Act - The Dodd-Frank Wall Street Reform and Consumer Protection Act of 2010.

DPD - Days Past Due.

DUS - Fannie Mae Delegated Underwriting & Servicing.

FASB - Financial Accounting Standards Board.

FDIC - Federal Deposit Insurance Corporation.

Federal Reserve - Board of Governors of the Federal Reserve System.

FHA - Federal Housing Administration.

FHLB - Federal Home Loan Bank.

FHLMC - Federal Home Loan Mortgage Corporation, known as Freddie Mac.

FNMA - Federal National Mortgage Association, known as Fannie Mae.

FRB - Federal Reserve Bank.

FS-ISAC - Financial Services - Information Sharing & Analysis Center.

GAAP - Generally Accepted Accounting Principles in the United States.

GCM - Guideline Public Company Method.

GDP - Gross Domestic Product.

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GNMA - Government National Mortgage Association.

GTM - Guideline Transaction Method.

HUD - U.S. Department of Housing and Urban Development.

IP - Intellectual Property.

IPO - Initial public offering.

LCR - Liquidity coverage ratio.

LIBOR - London InterBank Offered Rates.

LTIP - Long-term incentive plan.

LTV - Loan to value.

MBS - Mortgage-backed securities.

Morgan Keegan - Morgan Keegan & Company, Inc.

MSAs - Metropolitan Statistical Areas.

MSR - Mortgage servicing right.

NM - Not meaningful.

NPR - Notice of Proposed Rulemaking.

OAS - Option-Adjusted Spread.

OCC - Office of the Comptroller of the Currency.

OCI - Other comprehensive income.

OIS - Overnight indexed swap.

OTTI - Other-than-temporary impairment.

Raymond James - Raymond James Financial, Inc.

RICO - Racketeer Influenced and Corrupt Organizations Act.

SEC - U.S. Securities and Exchange Commission.

SERP - Supplemental Executive Retirement Plan.

SSFA - Simplified Supervisory Formula Approach.

Tax Reform - H.R.1, An Act to Provide for Reconciliation Pursuant to Titles II and V of the Concurrent Resolution

on the Budget for Fiscal Year 2018.

TDR - Troubled debt restructuring.

U.S. - United States.

U.S. Treasury - United States Department of the Treasury.

UTB - Unrecognized tax benefits.

VIE - Variable interest entity.

4

Forward-Looking Statements

This Quarterly Report on Form 10-Q, other periodic reports filed by Regions Financial Corporation under the Securities Exchange Act of 1934, as amended, and any other written or oral statements made by us or on our behalf to analysts, investors, the media and others, may include forward-looking statements as defined in the Private Securities Litigation Reform Act of 1995. The terms “Regions,” the “Company,” “we,” “us” and “our” used herein mean collectively Regions Financial Corporation, a Delaware corporation, together with its subsidiaries when or where appropriate. The words “future,” “anticipates,” “assumes,” “intends,” “plans,” “seeks,” “believes,” “predicts,” “potential,” “objectives,” “estimates,” “expects,” “targets,” “projects,” “outlook,” “forecast,” “would,” “will,” “may,” “might,” “could,” “should,” “can,” and similar terms and expressions often signify forward-looking statements. Forward-looking statements are not based on historical information, but rather are related to future operations, strategies, financial results or other developments. Forward-looking statements are based on management’s current expectations as well as certain assumptions and estimates made by, and information available to, management at the time the statements are made. Those statements are based on general assumptions and are subject to various risks, and because they also relate to the future they are likewise subject to inherent uncertainties and other factors that may cause actual results to differ materially from the views, beliefs and projections expressed in such statements. Therefore, we caution you against relying on any of these forward-looking statements. These risks, uncertainties and other factors include, but are not limited to, those described below:

• Current and future economic and market conditions in the United States generally or in the communities we serve, including the effects of possible declines in property values, increases in unemployment rates and potential reductions of economic growth, which may adversely affect our lending and other businesses and our financial results and conditions.

• Possible changes in trade, monetary and fiscal policies of, and other activities undertaken by, governments, agencies, central banks and similar organizations, which could have a material adverse effect on our earnings.

• The effects of a possible downgrade in the U.S. government’s sovereign credit rating or outlook, which could result in risks to us and general economic conditions that we are not able to predict.

• Possible changes in market interest rates or capital markets could adversely affect our revenue and expense, the value of assets and obligations, and the availability and cost of capital and liquidity.

• Any impairment of our goodwill or other intangibles, any repricing of assets, or any adjustment of valuation allowances on our deferred tax assets due to changes in law, adverse changes in the economic environment, declining operations of the reporting unit or other factors.

• The effect of changes in tax laws, including the effect of Tax Reform and any future interpretations of or amendments to Tax Reform, which may impact our earnings, capital ratios and our ability to return capital to shareholders.

• Possible changes in the creditworthiness of customers and the possible impairment of the collectability of loans and leases, including operating leases.

• Changes in the speed of loan prepayments, loan origination and sale volumes, charge-offs, loan loss provisions or actual loan losses where our allowance for loan losses may not be adequate to cover our eventual losses.

• Possible acceleration of prepayments on mortgage-backed securities due to low interest rates, and the related acceleration of premium amortization on those securities.

• Loss of customer checking and savings account deposits as customers pursue other, higher-yield investments, which could increase our funding costs.

• Possible changes in consumer and business spending and saving habits and the related effect on our ability to increase assets and to attract deposits, which could adversely affect our net income.

• Our ability to effectively compete with other traditional and non-traditional financial services companies, some of whom possess greater financial resources than we do or are subject to different regulatory standards than we are.

• Our inability to develop and gain acceptance from current and prospective customers for new products and services and the enhancement of existing products and services to meet customers’ needs and respond to emerging technological trends in a timely manner could have a negative impact on our revenue.

• Our inability to keep pace with technological changes could result in losing business to competitors.

• Changes in laws and regulations affecting our businesses, including legislation and regulations relating to bank products and services, as well as changes in the enforcement and interpretation of such laws and regulations by applicable governmental and self-regulatory agencies, which could require us to change certain business practices, increase compliance risk, reduce our revenue, impose additional costs on us, or otherwise negatively affect our businesses.

• Our ability to obtain a regulatory non-objection (as part of the CCAR process or otherwise) to take certain capital actions, including paying dividends and any plans to increase common stock dividends, repurchase common stock under current

5

or future programs, or redeem preferred stock or other regulatory capital instruments, may impact our ability to return capital to stockholders and market perceptions of us.

• Our ability to comply with stress testing and capital planning requirements (as part of the CCAR process or otherwise) may continue to require a significant investment of our managerial resources due to the importance and intensity of such tests and requirements.

• Our ability to comply with applicable capital and liquidity requirements (including, among other things, the Basel III capital standards and the LCR rule), including our ability to generate capital internally or raise capital on favorable terms, and if we fail to meet requirements, our financial condition could be negatively impacted.

• The effects of any developments, changes or actions relating to any litigation or regulatory proceedings brought against us or any of our subsidiaries.

• The costs, including possibly incurring fines, penalties, or other negative effects (including reputational harm) of any adverse judicial, administrative, or arbitral rulings or proceedings, regulatory enforcement actions, or other legal actions to which we or any of our subsidiaries are a party, and which may adversely affect our results.

• Our ability to manage fluctuations in the value of assets and liabilities and off-balance sheet exposure so as to maintain sufficient capital and liquidity to support our business.

• Our ability to execute on our strategic and operational plans, including our ability to fully realize the financial and non-financial benefits relating to our strategic initiatives.

• The risks and uncertainties related to our acquisition or divestiture of businesses.

• The success of our marketing efforts in attracting and retaining customers.

• Our ability to recruit and retain talented and experienced personnel to assist in the development, management and operation of our products and services may be affected by changes in laws and regulations in effect from time to time.

• Fraud or misconduct by our customers, employees or business partners.

• Any inaccurate or incomplete information provided to us by our customers or counterparties.

• Inability of our framework to manage risks associated with our business such as credit risk and operational risk, including third-party vendors and other service providers, which could, among other things, result in a breach of operating or security systems as a result of a cyber attack or similar act or failure to deliver our services effectively.

• Dependence on key suppliers or vendors to obtain equipment and other supplies for our business on acceptable terms.

• The inability of our internal controls and procedures to prevent, detect or mitigate any material errors or fraudulent acts.

• The effects of geopolitical instability, including wars, conflicts and terrorist attacks and the potential impact, directly or indirectly, on our businesses.

• The effects of man-made and natural disasters, including fires, floods, droughts, tornadoes, hurricanes, and environmental damage, which may negatively affect our operations and/or our loan portfolios and increase our cost of conducting business.

• Changes in commodity market prices and conditions could adversely affect the cash flows of our borrowers operating in industries that are impacted by changes in commodity prices (including businesses indirectly impacted by commodities prices such as businesses that transport commodities or manufacture equipment used in the production of commodities), which could impair their ability to service any loans outstanding to them and/or reduce demand for loans in those industries.

• Our ability to identify and address cyber-security risks such as data security breaches, malware, “denial of service” attacks, “hacking” and identity theft, a failure of which could disrupt our business and result in the disclosure of and/or misuse or misappropriation of confidential or proprietary information, disruption or damage to our systems, increased costs, losses, or adverse effects to our reputation.

• Our ability to realize our adjusted efficiency ratio target as part of our expense management initiatives.

• Possible downgrades in our credit ratings or outlook could increase the costs of funding from capital markets.

• The effects of problems encountered by other financial institutions that adversely affect us or the banking industry generally could require us to change certain business practices, reduce our revenue, impose additional costs on us, or otherwise negatively affect our businesses.

• The effects of the failure of any component of our business infrastructure provided by a third party could disrupt our businesses, result in the disclosure of and/or misuse of confidential information or proprietary information, increase our costs, negatively affect our reputation, and cause losses.

• Our ability to receive dividends from our subsidiaries could affect our liquidity and ability to pay dividends to stockholders.

6

• Changes in accounting policies or procedures as may be required by the FASB or other regulatory agencies could materially affect how we report our financial results.

• Other risks identified from time to time in reports that we file with the SEC.

• Fluctuations in the price of our common stock and inability to complete stock repurchases in the time frame and/or on the terms anticipated.

• The effects of any damage to our reputation resulting from developments related to any of the items identified above.

You should not place undue reliance on any forward-looking statements, which speak only as of the date made. Factors or events that could cause our actual results to differ may emerge from time to time, and it is not possible to predict all of them. We assume no obligation and do not intend to update or revise any forward-looking statements that are made from time to time, either as a result of future developments, new information or otherwise, except as may be required by law.

See also the reports filed with the Securities and Exchange Commission, including the discussion under the “Risk Factors” section of Regions’ Annual Report on Form 10-K for the year ended December 31, 2017 as filed with the Securities and Exchange Commission and available on its website at www.sec.gov.

7

PART I

FINANCIAL INFORMATION

Item 1. Financial Statements (Unaudited)

REGIONS FINANCIAL CORPORATION AND SUBSIDIARIES

CONSOLIDATED BALANCE SHEETS

	March 31, 2018			December 31, 2017
	(In millions, except share data)
Assets
Cash and due from banks	$	1,766		$	2,012
Interest-bearing deposits in other banks	1,419			1,899
Federal funds sold and securities purchased under agreements to resell	—			70
Debt securities held to maturity (estimated fair value of $1,585 and $1,667, respectively)	1,611			1,658
Debt securities available for sale	23,085			23,403
Loans held for sale (includes $282 and $325 measured at fair value, respectively)	452			348
Loans, net of unearned income	79,822			79,947
Allowance for loan losses	(840		)	(934		)
Net loans	78,982			79,013
Other earning assets	1,640			1,891
Premises and equipment, net	2,065			2,064
Interest receivable	328			337
Goodwill	4,904			4,904
Residential mortgage servicing rights at fair value	356			336
Other identifiable intangible assets	167			177
Other assets	6,138			6,182
Total assets	$	122,913		$	124,294
Liabilities and Stockholders’ Equity
Deposits:
Non-interest-bearing	$	36,935		$	36,127
Interest-bearing	60,055			60,762
Total deposits	96,990			96,889
Borrowed funds:
Short-term borrowings:
Other short-term borrowings	—			500
Total short-term borrowings	—			500
Long-term borrowings	7,949			8,132
Total borrowed funds	7,949			8,632
Other liabilities	2,108			2,581
Total liabilities	107,047			108,102
Stockholders’ equity:
Preferred stock, authorized 10 million shares, par value $1.00 per share
Non-cumulative perpetual, liquidation preference $1,000.00 per share, including related surplus, net of issuance costs; issued—1,000,000 shares	820			820
Common stock, authorized 3 billion shares, par value $.01 per share:
Issued including treasury stock—1,163,817,064 and 1,175,327,565 shares, respectively	12			12
Additional paid-in capital	15,639			15,858
Retained earnings	1,923			1,628
Treasury stock, at cost—41,259,320 and 41,259,320 shares, respectively	(1,377		)	(1,377		)
Accumulated other comprehensive income (loss), net	(1,151		)	(749		)
Total stockholders’ equity	15,866			16,192
Total liabilities and stockholders’ equity	$	122,913		$	124,294

See notes to consolidated financial statements.

8

REGIONS FINANCIAL CORPORATION AND SUBSIDIARIES

CONSOLIDATED STATEMENTS OF INCOME

	Three Months Ended March 31
	2018			2017
	(In millions, except per share data)
Interest income, including other financing income on:
Loans, including fees	$	851		$	773
Debt securities - taxable	154			147
Loans held for sale	3			4
Other earning assets	19			15
Operating lease assets	20			27
Total interest income, including other financing income	1,047			966
Interest expense on:
Deposits	49			35
Short-term borrowings	1			—
Long-term borrowings	72			50
Total interest expense	122			85
Depreciation expense on operating lease assets	16			22
Total interest expense and depreciation expense on operating lease assets	138			107
Net interest income and other financing income	909			859
Provision (credit) for loan losses	(10		)	70
Net interest income and other financing income after provision (credit) for loan losses	919			789
Non-interest income:
Service charges on deposit accounts	171			168
Card and ATM fees	104			104
Investment management and trust fee income	58			56
Mortgage income	38			41
Other	136			105
Total non-interest income	507			474
Non-interest expense:
Salaries and employee benefits	495			461
Net occupancy expense	83			83
Furniture and equipment expense	81			79
Other	225			220
Total non-interest expense	884			843
Income from continuing operations before income taxes	542			420
Income tax expense	128			127
Income from continuing operations	414			293
Discontinued operations:
Income (loss) from discontinued operations before income taxes	—			13
Income tax expense (benefit)	—			5
Income (loss) from discontinued operations, net of tax	—			8
Net income	$	414		$	301
Net income from continuing operations available to common shareholders	$	398		$	277
Net income available to common shareholders	$	398		$	285
Weighted-average number of shares outstanding:
Basic	1,127			1,209
Diluted	1,141			1,224
Earnings per common share from continuing operations:
Basic	$	0.35		$	0.23
Diluted	0.35			0.23
Earnings per common share:
Basic	$	0.35		$	0.24
Diluted	0.35			0.23
Cash dividends declared per common share	0.09			0.065

See notes to consolidated financial statements.

9

REGIONS FINANCIAL CORPORATION AND SUBSIDIARIES

CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME

	Three Months Ended March 31
	2018			2017
	(In millions)
Net income	$	414		$	301
Other comprehensive income (loss), net of tax:
Unrealized losses on securities transferred to held to maturity:
Unrealized losses on securities transferred to held to maturity during the period (net of zero and zero tax effect, respectively)	—			—
Less: reclassification adjustments for amortization of unrealized losses on securities transferred to held to maturity (net of ($1) and ($1) tax effect, respectively)	(2		)	(2		)
Net change in unrealized losses on securities transferred to held to maturity, net of tax	2			2
Unrealized gains (losses) on securities available for sale:
Unrealized holding gains (losses) arising during the period (net of ($104) and $1 tax effect, respectively)	(310		)	1
Less: reclassification adjustments for securities gains (losses) realized in net income (net of zero and zero tax effect, respectively)	—			—
Net change in unrealized gains (losses) on securities available for sale, net of tax	(310		)	1
Unrealized gains (losses) on derivative instruments designated as cash flow hedges:
Unrealized holding gains (losses) on derivatives arising during the period (net of ($31) and ($1) tax effect, respectively)	(92		)	(4		)
Less: reclassification adjustments for gains (losses) on derivative instruments realized in net income (net of $3 and $12 tax effect, respectively)	8			19
Net change in unrealized gains (losses) on derivative instruments, net of tax	(100		)	(23		)
Defined benefit pension plans and other post employment benefits:
Net actuarial gains (losses) arising during the period (net of zero and zero tax effect, respectively)	(1		)	(1		)
Less: reclassification adjustments for amortization of actuarial loss and prior service cost realized in net income (net of ($2) and ($3) tax effect, respectively)	(7		)	(6		)
Net change from defined benefit pension plans and other post employment benefits, net of tax	6			5
Other comprehensive income (loss), net of tax	(402		)	(15		)
Comprehensive income	$	12		$	286

See notes to consolidated financial statements.

10

REGIONS FINANCIAL CORPORATION AND SUBSIDIARIES

CONSOLIDATED STATEMENTS OF CHANGES IN STOCKHOLDERS’ EQUITY

	Preferred Stock			Common Stock					Additional Paid-In Capital			Retained Earnings (Deficit)			Treasury Stock, At Cost			Accumulated Other Comprehensive Income (Loss), Net			Total
	Shares	Amount		Shares		Amount
	(In millions, except per share data)
BALANCE AT JANUARY 1, 2017	1	$	820	1,214		$	13		$	17,092		$	666		$	(1,377	)	$	(550	)	$	16,664
Net income	—	—		—		—			—			301			—			—			301
Other comprehensive income (loss), net of tax	—	—		—		—			—			—			—			(15		)	(15		)
Cash dividends declared—$0.065 per share	—	—		—		—			—			(78		)	—			—			(78		)
Preferred stock dividends	—	—		—		—			—			(16		)	—			—			(16		)
Common stock transactions:
Impact of share repurchases	—	—		(10	)	(1		)	(149		)	—			—			—			(150		)
Impact of stock transactions under compensation plans, net and other	—	—		1		—			16			—			—			—			16
BALANCE AT MARCH 31, 2017	1	$	820	1,205		$	12		$	16,959		$	873		$	(1,377	)	$	(565	)	$	16,722
BALANCE AT JANUARY 1, 2018	1	$	820	1,133		$	12		$	15,858		$	1,628		$	(1,377	)	$	(749	)	$	16,192
Cumulative effect from change in accounting guidance	—	—		—		—			—			(2		)	—			—			(2		)
Net income	—	—		—		—			—			414			—			—			414
Other comprehensive income (loss), net of tax	—	—		—		—			—			—			—			(402		)	(402		)
Cash dividends declared—$0.09 per share	—	—		—		—			—			(101		)	—			—			(101		)
Preferred stock dividends	—	—		—		—			—			(16		)	—			—			(16		)
Common stock transactions:
Impact of share repurchases	—	—		(12	)	—			(235		)	—			—			—			(235		)
Impact of stock transactions under compensation plans, net and other	—	—		1		—			16			—			—			—			16
BALANCE AT MARCH 31, 2018	1	$	820	1,122		$	12		$	15,639		$	1,923		$	(1,377	)	$	(1,151	)	$	15,866

See notes to consolidated financial statements.

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REGIONS FINANCIAL CORPORATION AND SUBSIDIARIES

CONSOLIDATED STATEMENTS OF CASH FLOWS

	Three Months Ended March 31
	2018			2017
	(In millions)
Operating activities:
Net income	$	414		$	301
Adjustments to reconcile net income to net cash from operating activities:
Provision (credit) for loan losses	(10		)	70
Depreciation, amortization and accretion, net	121			140
Deferred income tax expense	103			62
Originations and purchases of loans held for sale	(690		)	(650		)
Proceeds from sales of loans held for sale	587			876
(Gain) loss on sale of loans, net	(14		)	(24		)
Net change in operating assets and liabilities:
Other earning assets	235			51
Interest receivable and other assets	(61		)	(28		)
Other liabilities	(529		)	(79		)
Other	(2		)	13
Net cash from operating activities	154			732
Investing activities:
Proceeds from maturities of debt securities held to maturity	46			49
Proceeds from sales of debt securities available for sale	7			429
Proceeds from maturities of debt securities available for sale	798			889
Net proceeds from bank-owned life insurance	1			(2		)
Purchases of debt securities available for sale	(876		)	(1,138		)
Purchases of debt securities held to maturity	—			(437		)
Proceeds from sales of loans	272			7
Purchases of loans	(70		)	(4		)
Purchases of mortgage servicing rights	(2		)	(8		)
Net change in loans	(164		)	103
Net purchases of other assets	(56		)	(13		)
Net cash from investing activities	(44		)	(125		)
Financing activities:
Net change in deposits	101			389
Net change in short-term borrowings	(500		)	—
Proceeds from long-term borrowings	4,350			—
Payments on long-term borrowings	(4,500		)	(1,750		)
Cash dividends on common stock	(102		)	(157		)
Cash dividends on preferred stock	(16		)	(16		)
Repurchases of common stock	(235		)	(150		)
Taxes paid related to net share settlement of equity awards	(1		)	—
Other	(3		)	—
Net cash from financing activities	(906		)	(1,684		)
Net change in cash and cash equivalents	(796		)	(1,077		)
Cash and cash equivalents at beginning of year	3,981			5,451
Cash and cash equivalents at end of period	$	3,185		$	4,374

See notes to consolidated financial statements.

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REGIONS FINANCIAL CORPORATION AND SUBSIDIARIES

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS

(Unaudited)

Three Months EndedMarch 31, 2018 and 2017

NOTE 1. BASIS OF PRESENTATION

Regions Financial Corporation (“Regions” or the "Company”) provides a full range of banking and bank-related services to individual and corporate customers through its subsidiaries and branch offices located across the South, Midwest and Texas. The Company competes with other financial institutions located in the states in which it operates, as well as other adjoining states. Regions is subject to the regulations of certain government agencies and undergoes periodic examinations by certain regulatory authorities.

The accounting and reporting policies of Regions and the methods of applying those policies that materially affect the consolidated financial statements conform with GAAP and with general financial services industry practices. The accompanying interim financial statements have been prepared in accordance with the instructions for Form 10-Q and, therefore, do not include all information and notes to the consolidated financial statements necessary for a complete presentation of financial position, results of operations, comprehensive income and cash flows in conformity with GAAP. In the opinion of management, all adjustments, consisting of normal and recurring items, necessary for the fair presentation of the consolidated financial statements have been included. These interim financial statements should be read in conjunction with the consolidated financial statements and notes thereto in Regions’ Annual Report on Form 10-K for the year ended December 31, 2017. Regions has evaluated all subsequent events for potential recognition and disclosure through the filing date of this Form 10-Q. See Note 16.

On April 4, 2018, Regions entered into a stock purchase agreement to sell Regions Insurance Group, Inc. and related affiliates to BB&T Holdings, Inc. The transaction is expected to close in the third quarter of 2018, subject to regulatory approvals and customary closing conditions. Regions sold Morgan Keegan and related affiliates in April 2012. See Note 2, Note 13 and Note 16 for related disclosure.

Effective January 1, 2018, the Company adopted new guidance related to several accounting topics.The cumulative effect of the retrospective application was a total reduction to retained earnings of $2 million, of which the individual components were immaterial. All prior period amounts impacted by guidance that required retrospective application have been revised. See Note 15 for related disclosure.

NOTE 2. DISCONTINUED OPERATIONS

On April 4, 2018, Regions entered into a stock purchase agreement to sell Regions Insurance Group, Inc. and related affiliates to BB&T Insurance Holdings, Inc. The transaction is expected to generate an after-tax gain of approximately $200 million and Common Equity Tier 1 capital of approximately $300 million at closing, which is expected in the third quarter, subject to regulatory approvals and customary closing conditions. The transaction purchase price is not subject to any adjustment that would have a material impact to the consolidated financial statements. See Note 16 for related discussion.

In connection with the agreement, the results of the entities being sold are reported in the Company's consolidated statements of income separately as discontinued operations for all periods presented because the pending sale met all of the criteria for reporting as discontinuing operations at March 31, 2018.

On January 11, 2012, Regions entered into a stock purchase agreement to sell Morgan Keegan and related affiliates to Raymond James. The transaction closed on April 2, 2012. Regions Investment Management, Inc. (formerly known as Morgan Asset Management, Inc.) and Regions Trust were not included in the sale. In connection with the closing of the sale, Regions agreed to indemnify Raymond James for all litigation matters related to pre-closing activities. See Note 13 for related disclosure.

Results of operations for the Morgan Keegan entities sold are presented separately as discontinued operations for all periods presented on the consolidated statements of income. This presentation is consistent with the consolidated financial statements included in the Annual Report on Form 10-K for the year ended December 31, 2017.

The condensed balance sheets for the Regions Insurance Group, Inc. entities being sold are immaterial for disclosure as discontinued operations. The following table represents the condensed results of operations for the Regions Insurance Group, Inc. entities being sold as discontinued operations:

13

	Three Months Ended March 31
	2018		2017
	(In millions)
Non-interest income:
Insurance commissions and fees	$	34	$	36
Total non-interest income	34		36
Non-interest expense:
Salaries and employee benefits	24		24
Net occupancy expense	1		2
Furniture and equipment expense	1		1
Other	7		7
Total non-interest expense	33		34
Income (loss) from discontinued operations before income taxes	1		2
Income tax expense (benefit)	—		1
Income (loss) from discontinued operations, net of tax	$	1	$	1

The following table represents the condensed results of operations for both the Regions Insurance Group, Inc. entities being sold and Morgan Keegan and Company, Inc. and related affiliates as discontinued operations:

	Three Months Ended March 31
	2018		2017
	(In millions, except per share data)
Income (loss) from discontinued operations before income taxes	$	—	$	13
Income tax expense (benefit)	—		5
Income (loss) from discontinued operations, net of tax	$	—	$	8
Earnings (loss) per common share from discontinued operations:
Basic	$	0.00	$	0.01
Diluted	$	0.00	$	0.01

14

NOTE 3. SECURITIES

DEBT SECURITIES

The amortized cost, gross unrealized gains and losses, and estimated fair value of debt securities held to maturity and debt securities available for sale are as follows:

	March 31, 2018
			Recognized in OCI (1)							Not Recognized in OCI
	Amortized Cost		Gross Unrealized Gains		Gross Unrealized Losses			Carrying Value		Gross Unrealized Gains		Gross Unrealized Losses			Estimated Fair Value
	(In millions)
Debt securities held to maturity:
Mortgage-backed securities:
Residential agency	$	1,010	$	—	$	(38	)	$	972	$	1	$	(13	)	$	960
Commercial agency	642		—		(3		)	639		—		(14		)	625
	$	1,652	$	—	$	(41	)	$	1,611	$	1	$	(27	)	$	1,585
Debt securities available for sale:
U.S. Treasury securities	$	333	$	—	$	(6	)	$	327						$	327
Federal agency securities	42		—		—			42							42
Mortgage-backed securities:
Residential agency	17,663		23		(534		)	17,152							17,152
Residential non-agency	2		—		—			2							2
Commercial agency	3,742		1		(82		)	3,661							3,661
Commercial non-agency	774		3		(11		)	766							766
Corporate and other debt securities	1,145		8		(18		)	1,135							1,135
	$	23,701	$	35	$	(651	)	$	23,085						$	23,085

	December 31, 2017
			Recognized in OCI (1)							Not Recognized in OCI
	Amortized Cost		Gross Unrealized Gains		Gross Unrealized Losses			Carrying Value		Gross Unrealized Gains		Gross Unrealized Losses			Estimated Fair Value
	(In millions)
Debt securities held to maturity:
Mortgage-backed securities:
Residential agency	$	1,051	$	—	$	(40	)	$	1,011	$	12	$	(4	)	$	1,019
Commercial agency	651		—		(4		)	647		5		(4		)	648
	$	1,702	$	—	$	(44	)	$	1,658	$	17	$	(8	)	$	1,667
Debt securities available for sale:
U.S. Treasury securities	$	333	$	—	$	(2	)	$	331						$	331
Federal agency securities	28		—		—			28							28
Mortgage-backed securities:
Residential agency	17,622		53		(244		)	17,431							17,431
Residential non-agency	3		—		—			3							3
Commercial agency	3,739		5		(30		)	3,714							3,714
Commercial non-agency	787		4		(3		)	788							788
Corporate and other debt securities	1,093		20		(5		)	1,108							1,108
	$	23,605	$	82	$	(284	)	$	23,403						$	23,403

_________

(1) The gross unrealized losses recognized in OCI on securities held to maturity resulted from a transfer of securities available for sale to held to maturity in the second quarter of 2013.

15

Debt securities with carrying values of $8.3 billion and $8.1 billion at March 31, 2018 and December 31, 2017, respectively, were pledged to secure public funds, trust deposits and certain borrowing arrangements. Included within total pledged securities is approximately $49 million and $50 million of encumbered U.S. Treasury securities at March 31, 2018 and December 31, 2017, respectively.

The amortized cost and estimated fair value of debt securities held to maturity and debt securities available for sale at March 31, 2018, by contractual maturity, are shown below. Expected maturities will differ from contractual maturities because borrowers may have the right to call or prepay obligations with or without call or prepayment penalties.

	Amortized Cost		Estimated Fair Value
	(In millions)
Debt securities held to maturity:
Mortgage-backed securities:
Residential agency	$	1,010	$	960
Commercial agency	642		625
	$	1,652	$	1,585
Debt securities available for sale:
Due in one year or less	$	48	$	48
Due after one year through five years	964		952
Due after five years through ten years	418		414
Due after ten years	90		90
Mortgage-backed securities:
Residential agency	17,663		17,152
Residential non-agency	2		2
Commercial agency	3,742		3,661
Commercial non-agency	774		766
	$	23,701	$	23,085

The following tables present gross unrealized losses and the related estimated fair value of debt securities held to maturity and debt securities available for sale at March 31, 2018 and December 31, 2017. For debt securities transferred to held to maturity from available for sale, the analysis in the tables below is comparing the securities' original amortized cost to its current estimated fair value. These securities are segregated between investments that have been in a continuous unrealized loss position for less than twelve months and for twelve months or more.

	March 31, 2018
	Less Than Twelve Months					Twelve Months or More					Total
	Estimated Fair Value		Gross Unrealized Losses			Estimated Fair Value		Gross Unrealized Losses			Estimated Fair Value		Gross Unrealized Losses
	(In millions)
Debt securities held to maturity:
Mortgage-backed securities:
Residential agency	$	—	$	—		$	960	$	(51	)	$	960	$	(51	)
Commercial agency	485		(8		)	140		(9		)	625		(17		)
	$	485	$	(8	)	$	1,100	$	(60	)	$	1,585	$	(68	)
Debt securities available for sale:
U.S. Treasury securities	$	223	$	(3	)	$	87	$	(3	)	$	310	$	(6	)
Mortgage-backed securities:
Residential agency	7,524		(169		)	7,739		(365		)	15,263		(534		)
Commercial agency	2,600		(50		)	856		(32		)	3,456		(82		)
Commercial non-agency	536		(9		)	59		(2		)	595		(11		)
Corporate and other debt securities	643		(14		)	84		(4		)	727		(18		)
	$	11,526	$	(245	)	$	8,825	$	(406	)	$	20,351	$	(651	)

16

	December 31, 2017
	Less Than Twelve Months					Twelve Months or More					Total
	Estimated Fair Value		Gross Unrealized Losses			Estimated Fair Value		Gross Unrealized Losses			Estimated Fair Value		Gross Unrealized Losses
	(In millions)
Debt securities held to maturity:
Mortgage-backed securities:
Residential agency	$	—	$	—		$	1,019	$	(32	)	$	1,019	$	(32	)
Commercial agency	—		—			150		(7		)	150		(7		)
	$	—	$	—		$	1,169	$	(39	)	$	1,169	$	(39	)
Debt securities available for sale:
U.S. Treasury securities	$	221	$	(1	)	$	84	$	(1	)	$	305	$	(2	)
Mortgage-backed securities:
Residential agency	5,157		(40		)	8,195		(204		)	13,352		(244		)
Commercial agency	1,666		(10		)	904		(20		)	2,570		(30		)
Commercial non-agency	393		(2		)	61		(1		)	454		(3		)
Corporate and other debt securities	306		(2		)	105		(3		)	411		(5		)
	$	7,743	$	(55	)	$	9,349	$	(229	)	$	17,092	$	(284	)

The number of individual debt positions in an unrealized loss position in the tables above increased from 1,059 at December 31, 2017 to 1,364 at March 31, 2018. The increase in the number of securities and the total amount of unrealized losses from year-end 2017 was primarily due to changes in market interest rates. In instances where an unrealized loss existed, there was no indication of an adverse change in credit on the underlying positions in the tables above. As it relates to these positions, management believes no individual unrealized loss, other than those discussed below, represented an OTTI as of those dates. The Company does not intend to sell, and it is not more likely than not that the Company will be required to sell, the positions before the recovery of their amortized cost basis, which may be at maturity.

As part of the Company's normal process for evaluating OTTI, management did identify a limited number of positions where an OTTI was believed to exist as of March 31, 2018. For the three months ended March 31, 2018, such impairments were immaterial.

Gross realized gains and gross realized losses on sales of debt securities available for sale are shown in the table below. The cost of securities sold is based on the specific identification method.

	Three Months Ended March 31
	2018		2017
	(In millions)
Gross realized gains	$	—	$	1
Gross realized losses	—		(1		)
Debt securities available for sale gains (losses), net	$	—	$	—

EQUITY INVESTMENTS

Effective January 1, 2018, Regions adopted new accounting guidance that requires equity investments to be recorded at fair value with changes in fair value reported in net income. Regions elected a measurement alternative to fair value for certain equity investments without a readily determinable fair value. See Note 15 for related disclosure.

Marketable equity securities carried at fair value, which primarily consist of assets held for certain employee benefits and money market funds, are reported in other earning assets in the consolidated balance sheets. Total marketable equity securities were $525 million and $414 million at March 31, 2018 and December 31, 2017, respectively. Unrealized holding gains and losses for equity securities were immaterial at March 31, 2018.

17

Equity investments without a readily determinable fair value primarily consist of investments in strategic partners and certain CRA projects. The carrying amount of equity investments measured under the measurement alternative, downward and upward adjustments for impairments and price changes from observable transactions are as follows:

	Three Months Ended March 31, 2018
	(In millions)
Carrying value, December 31, 2017	$	31
Net additions	—
Downward adjustments for price changes and impairment	—
Upward adjustments for price changes(1)	7
Carrying value, March 31, 2018	$	38

_________

(1) Upward adjustments for the three months ended March 31, 2018 related to an observable transaction by the same issuer in an arm's length transaction for a similar ownership interest.

Total cumulative downward adjustments for equity investments without a determinable fair value for impairments and observable price changes were $4 million. Total cumulative upward adjustments for price changes from observable transactions were $7 million as of March 31, 2018.

NOTE 4. LOANS AND THE ALLOWANCE FOR CREDIT LOSSES

LOANS

The following table presents the distribution of Regions' loan portfolio by segment and class, net of unearned income:

	March 31, 2018		December 31, 2017
	(In millions, net of unearned income)
Commercial and industrial	$	36,787	$	36,115
Commercial real estate mortgage—owner-occupied	6,044		6,193
Commercial real estate construction—owner-occupied	306		332
Total commercial	43,137		42,640
Commercial investor real estate mortgage	3,742		4,062
Commercial investor real estate construction	1,845		1,772
Total investor real estate	5,587		5,834
Residential first mortgage	13,892		14,061
Home equity	9,916		10,164
Indirect—vehicles	3,310		3,326
Indirect—other consumer	1,611		1,467
Consumer credit card	1,237		1,290
Other consumer	1,132		1,165
Total consumer	31,098		31,473
	$	79,822	$	79,947

During the three months ended March 31, 2018 and 2017, Regions purchased approximately $70 million and $4 million in indirect-other consumer loans from third parties, respectively.

During the three months ended March 31, 2018, Regions sold $254 million of residential first mortgage loans consisting primarily of performing troubled debt restructured loans as well as certain non-restructured interest-only loans.

At March 31, 2018, $22.1 billion in securities and net eligible loans held by Regions were pledged to secure current and potential borrowings from the FHLB. At March 31, 2018, an additional $22.1 billion in net eligible loans held by Regions were pledged to the FRB for potential borrowings.

18

ALLOWANCE FOR CREDIT LOSSES

Regions determines the appropriate level of the allowance on a quarterly basis. Refer to Note 1 “Summary of Significant Accounting Policies” to the consolidated financial statements to the Annual Report on Form 10-K for the year ended December 31, 2017, for a description of the methodology.

ROLLFORWARD OF ALLOWANCE FOR CREDIT LOSSES

The following tables present analyses of the allowance for credit losses by portfolio segment for the three months ended March 31, 2018 and 2017. The total allowance for loan losses and the related loan portfolio ending balances are disaggregated to detail the amounts derived through individual evaluation and collective evaluation for impairment. The allowance for loan losses related to individually evaluated loans is attributable to reserves for non-accrual commercial and investor real estate loans and all TDRs. The allowance for loan losses and the loan portfolio ending balances related to collectively evaluated loans is attributable to the remainder of the portfolio.

	Three Months Ended March 31, 2018
	Commercial			Investor Real Estate			Consumer			Total
	(In millions)
Allowance for loan losses, January 1, 2018	$	591		$	64		$	279		$	934
Provision (credit) for loan losses	(24		)	(4		)	18			(10		)
Loan losses:
Charge-offs	(30		)	(8		)	(74		)	(112		)
Recoveries	10			2			16			28
Net loan losses	(20		)	(6		)	(58		)	(84		)
Allowance for loan losses, March 31, 2018	547			54			239			840
Reserve for unfunded credit commitments, January 1, 2018	49			4			—			53
Provision (credit) for unfunded credit losses	(4		)	—			—			(4		)
Reserve for unfunded credit commitments, March 31, 2018	45			4			—			49
Allowance for credit losses, March 31, 2018	$	592		$	58		$	239		$	889
Portion of ending allowance for loan losses:
Individually evaluated for impairment	$	150		$	10		$	29		$	189
Collectively evaluated for impairment	397			44			210			651
Total allowance for loan losses	$	547		$	54		$	239		$	840
Portion of loan portfolio ending balance:
Individually evaluated for impairment	$	700		$	96		$	476		$	1,272
Collectively evaluated for impairment	42,437			5,491			30,622			78,550
Total loans evaluated for impairment	$	43,137		$	5,587		$	31,098		$	79,822

19

	Three Months Ended March 31, 2017
	Commercial			Investor Real Estate			Consumer			Total
	(In millions)
Allowance for loan losses, January 1, 2017	$	753		$	85		$	253		$	1,091
Provision (credit) for loan losses	26			1			43			70
Loan losses:
Charge-offs	(58		)	(1		)	(65		)	(124		)
Recoveries	6			2			16			24
Net loan losses	(52		)	1			(49		)	(100		)
Allowance for loan losses, March 31, 2017	727			87			247			1,061
Reserve for unfunded credit commitments, January 1, 2017	64			5			—			69
Provision (credit) for unfunded credit losses	2			(1		)	—			1
Reserve for unfunded credit commitments, March 31, 2017	66			4			—			70
Allowance for credit losses, March 31, 2017	$	793		$	91		$	247		$	1,131
Portion of ending allowance for loan losses:
Individually evaluated for impairment	$	228		$	17		$	56		$	301
Collectively evaluated for impairment	499			70			191			760
Total allowance for loan losses	$	727		$	87		$	247		$	1,061
Portion of loan portfolio ending balance:
Individually evaluated for impairment	$	1,103		$	126		$	760		$	1,989
Collectively evaluated for impairment	41,139			6,356			30,385			77,880
Total loans evaluated for impairment	$	42,242		$	6,482		$	31,145		$	79,869

PORTFOLIO SEGMENT RISK FACTORS

The following describe the risk characteristics relevant to each of the portfolio segments.

Commercial—The commercial loan portfolio segment includes commercial and industrial loans to commercial customers for use in normal business operations to finance working capital needs, equipment purchases or other expansion projects. Commercial also includes owner-occupied commercial real estate mortgage loans to operating businesses, which are loans for long-term financing of land and buildings, and are repaid by cash flow generated by business operations. Owner-occupied construction loans are made to commercial businesses for the development of land or construction of a building where the repayment is derived from revenues generated from the business of the borrower. Collection risk in this portfolio is driven by the creditworthiness of underlying borrowers, particularly cash flow from customers’ business operations, and the sensitivity to market fluctuations in commodity prices.

Investor Real Estate—Loans for real estate development are repaid through cash flow related to the operation, sale or refinance of the property. This portfolio segment includes extensions of credit to real estate developers or investors where repayment is dependent on the sale of real estate or income generated from the real estate collateral. A portion of Regions’ investor real estate portfolio segment consists of loans secured by residential product types (land, single-family and condominium loans) within Regions’ markets. Additionally, these loans are made to finance income-producing properties such as apartment buildings, office and industrial buildings, and retail shopping centers. Loans in this portfolio segment are particularly sensitive to the valuation of real estate.

Consumer—The consumer loan portfolio segment includes residential first mortgage, home equity, indirect-vehicles, indirect-other consumer, consumer credit card, and other consumer loans. Residential first mortgage loans represent loans to consumers to finance a residence. These loans are typically financed over a 15 to 30 year term and, in most cases, are extended to borrowers to finance their primary residence. Home equity lending includes both home equity loans and lines of credit. This type of lending, which is secured by a first or second mortgage on the borrower’s residence, allows customers to borrow against the equity in their home. Real estate market values as of the time the loan or line is secured directly affect the amount of credit extended and, in addition, changes in these values impact the depth of potential losses. Indirect-vehicles lending, which is lending initiated through third-party business partners, largely consists of loans made through automotive dealerships. Indirect-other consumer lending represents other point of sale lending through third parties. Consumer credit card includes Regions branded consumer credit card accounts. Other consumer loans include other revolving consumer accounts, direct consumer loans, and overdrafts. Loans in this portfolio segment are sensitive to unemployment and other key consumer economic measures.

20

CREDIT QUALITY INDICATORS

The following tables present credit quality indicators for the loan portfolio segments and classes, excluding loans held for sale, as of March 31, 2018, and December 31, 2017. Commercial and investor real estate loan portfolio segments are detailed by categories related to underlying credit quality and probability of default. Regions assigns these categories at loan origination and reviews the relationship utilizing a risk-based approach on, at minimum, an annual basis or at any time management becomes aware of information affecting the borrowers' ability to fulfill their obligations. Both quantitative and qualitative factors are considered in this review process. These categories are utilized to develop the associated allowance for credit losses.

• Pass—includes obligations where the probability of default is considered low;

• Special Mention—includes obligations that have potential weakness that may, if not reversed or corrected, weaken the credit or inadequately protect the Company’s position at some future date. Obligations in this category may also be subject to economic or market conditions that may, in the future, have an adverse effect on debt service ability;

• Substandard Accrual—includes obligations that exhibit a well-defined weakness that presently jeopardizes debt repayment, even though they are currently performing. These obligations are characterized by the distinct possibility that the Company may incur a loss in the future if these weaknesses are not corrected;

• Non-accrual—includes obligations where management has determined that full payment of principal and interest is in doubt.

Substandard accrual and non-accrual loans are often collectively referred to as “classified.” Special mention, substandard accrual, and non-accrual loans are often collectively referred to as “criticized and classified.” Classes in the consumer portfolio segment are disaggregated by accrual status.

	March 31, 2018
	Pass		Special  Mention		Substandard Accrual		Non-accrual		Total
	(In millions)
Commercial and industrial	$	35,216	$	609	$	598	$	364	$	36,787
Commercial real estate mortgage—owner-occupied	5,558		250		134		102		6,044
Commercial real estate construction—owner-occupied	288		3		10		5		306
Total commercial	$	41,062	$	862	$	742	$	471	$	43,137
Commercial investor real estate mortgage	$	3,646	$	48	$	34	$	14	$	3,742
Commercial investor real estate construction	1,793		15		37		—		1,845
Total investor real estate	$	5,439	$	63	$	71	$	14	$	5,587
					Accrual		Non-accrual		Total
					(In millions)
Residential first mortgage					$	13,845	$	47	$	13,892
Home equity					9,847		69		9,916
Indirect—vehicles					3,310		—		3,310
Indirect—other consumer					1,611		—		1,611
Consumer credit card					1,237		—		1,237
Other consumer					1,132		—		1,132
Total consumer					$	30,982	$	116	$	31,098
									$	79,822

21

	December 31, 2017
	Pass		Special Mention		Substandard Accrual		Non-accrual		Total
	(In millions)
Commercial and industrial	$	34,420	$	686	$	605	$	404	$	36,115
Commercial real estate mortgage—owner-occupied	5,674		236		165		118		6,193
Commercial real estate construction—owner-occupied	313		3		10		6		332
Total commercial	$	40,407	$	925	$	780	$	528	$	42,640
Commercial investor real estate mortgage	$	3,905	$	63	$	89	$	5	$	4,062
Commercial investor real estate construction	1,706		19		46		1		1,772
Total investor real estate	$	5,611	$	82	$	135	$	6	$	5,834
					Accrual		Non-accrual		Total
					(In millions)
Residential first mortgage					$	14,014	$	47	$	14,061
Home equity					10,095		69		10,164
Indirect—vehicles					3,326		—		3,326
Indirect—other consumer					1,467		—		1,467
Consumer credit card					1,290		—		1,290
Other consumer					1,165		—		1,165
Total consumer					$	31,357	$	116	$	31,473
									$	79,947

AGING ANALYSIS

The following tables include an aging analysis of DPD for each portfolio segment and class as of March 31, 2018 and December 31, 2017:

	March 31, 2018
	Accrual Loans
	30-59 DPD		60-89 DPD		90+ DPD		Total 30+ DPD		Total Accrual		Non-accrual		Total
	(In millions)
Commercial and industrial	$	42	$	28	$	5	$	75	$	36,423	$	364	$	36,787
Commercial real estate mortgage—owner-occupied	25		3		1		29		5,942		102		6,044
Commercial real estate construction—owner-occupied	—		—		—		—		301		5		306
Total commercial	67		31		6		104		42,666		471		43,137
Commercial investor real estate mortgage	1		—		—		1		3,728		14		3,742
Commercial investor real estate construction	—		29		—		29		1,845		—		1,845
Total investor real estate	1		29		—		30		5,573		14		5,587
Residential first mortgage	78		42		196		316		13,845		47		13,892
Home equity	62		22		33		117		9,847		69		9,916
Indirect—vehicles	39		10		8		57		3,310		—		3,310
Indirect—other consumer	8		5		—		13		1,611		—		1,611
Consumer credit card	10		7		17		34		1,237		—		1,237
Other consumer	11		4		5		20		1,132		—		1,132
Total consumer	208		90		259		557		30,982		116		31,098
	$	276	$	150	$	265	$	691	$	79,221	$	601	$	79,822

22

	December 31, 2017
	Accrual Loans
	30-59 DPD		60-89 DPD		90+ DPD		Total 30+ DPD		Total Accrual		Non-accrual		Total
	(In millions)
Commercial and industrial	$	28	$	7	$	4	$	39	$	35,711	$	404	$	36,115
Commercial real estate mortgage—owner-occupied	18		8		1		27		6,075		118		6,193
Commercial real estate construction—owner-occupied	—		—		—		—		326		6		332
Total commercial	46		15		5		66		42,112		528		42,640
Commercial investor real estate mortgage	1		1		1		3		4,057		5		4,062
Commercial investor real estate construction	—		—		—		—		1,771		1		1,772
Total investor real estate	1		1		1		3		5,828		6		5,834
Residential first mortgage	95		85		216		396		14,014		47		14,061
Home equity	53		27		37		117		10,095		69		10,164
Indirect—vehicles	48		13		9		70		3,326		—		3,326
Indirect—other consumer	9		5		—		14		1,467		—		1,467
Consumer credit card	11		7		19		37		1,290		—		1,290
Other consumer	13		4		4		21		1,165		—		1,165
Total consumer	229		141		285		655		31,357		116		31,473
	$	276	$	157	$	291	$	724	$	79,297	$	650	$	79,947

IMPAIRED LOANS

The following tables present details related to the Company’s impaired loans as of March 31, 2018 and December 31, 2017. Loans deemed to be impaired include all TDRs and all non-accrual commercial and investor real estate loans, excluding leases. Loans that have been fully charged-off do not appear in the tables below.

	Non-accrual Impaired Loans As of March 31, 3018
					Book Value(3)
	Unpaid Principal Balance(1)		Charge-offs and Payments Applied(2)		Total Impaired Loans on Non-accrual Status		Impaired Loans on Non-accrual Status with No Related Allowance		Impaired Loans on Non-accrual Status with Related Allowance		Related Allowance for Loan Losses		Coverage %(4)
	(Dollars in millions)
Commercial and industrial	$	441	$	81	$	360	$	31	$	329	$	89	38.5	%
Commercial real estate mortgage—owner-occupied	113		11		102		18		84		33		38.9
Commercial real estate construction—owner-occupied	5		—		5		—		5		2		40.0
Total commercial	559		92		467		49		418		124		38.6
Commercial investor real estate mortgage	22		8		14		1		13		5		59.1
Commercial investor real estate construction	1		1		—		—		—		—		100.0
Total investor real estate	23		9		14		1		13		5		60.9
Residential first mortgage	41		10		31		—		31		3		31.7
Home equity	10		1		9		—		9		—		10.0
Total consumer	51		11		40		—		40		3		27.5
	$	633	$	112	$	521	$	50	$	471	$	132	38.5	%

23

	Accruing Impaired Loans As of March 31, 2018
	Unpaid Principal Balance(1)		Charge-offs and Payments Applied(2)		Book Value(3)		Related Allowance for Loan Losses		Coverage %(4)
	(Dollars in millions)
Commercial and industrial	$	181	$	7	$	174	$	22	16.0	%
Commercial real estate mortgage—owner-occupied	63		5		58		4		14.3
Commercial real estate construction—owner-occupied	1		—		1		—		—
Total commercial	245		12		233		26		15.5
Commercial investor real estate mortgage	55		2		53		2		7.3
Commercial investor real estate construction	29		—		29		3		10.3
Total investor real estate	84		2		82		5		8.3
Residential first mortgage	194		6		188		18		12.4
Home equity	240		1		239		8		3.8
Consumer credit card	1		—		1		—		—
Other consumer	8		—		8		—		—
Total consumer	443		7		436		26		7.4
	$	772	$	21	$	751	$	57	10.1	%

	Total Impaired Loans As of March 31, 2018
					Book Value(3)
	Unpaid Principal Balance(1)		Charge-offs and Payments Applied(2)		Total Impaired Loans		Impaired Loans with No Related Allowance		Impaired Loans with Related Allowance		Related Allowance for Loan Losses		Coverage %(4)
	(Dollars in millions)
Commercial and industrial	$	622	$	88	$	534	$	31	$	503	$	111	32.0	%
Commercial real estate mortgage—owner-occupied	176		16		160		18		142		37		30.1
Commercial real estate construction—owner-occupied	6		—		6		—		6		2		33.3
Total commercial	804		104		700		49		651		150		31.6
Commercial investor real estate mortgage	77		10		67		1		66		7		22.1
Commercial investor real estate construction	30		1		29		—		29		3		13.3
Total investor real estate	107		11		96		1		95		10		19.6
Residential first mortgage	235		16		219		—		219		21		15.7
Home equity	250		2		248		—		248		8		4.0
Consumer credit card	1		—		1		—		1		—		—
Other consumer	8		—		8		—		8		—		—
Total consumer	494		18		476		—		476		29		9.5
	$	1,405	$	133	$	1,272	$	50	$	1,222	$	189	22.9	%

24

	Non-accrual Impaired Loans As of December 31, 2017
					Book Value(3)
	Unpaid Principal Balance(1)		Charge-offs and Payments Applied(2)		Total Impaired Loans on Non-accrual Status		Impaired Loans on Non-accrual Status with No Related Allowance		Impaired Loans on Non-accrual Status with Related Allowance		Related Allowance for Loan Losses		Coverage %(4)
	(Dollars in millions)
Commercial and industrial	$	480	$	80	$	400	$	29	$	371	$	103	38.1	%
Commercial real estate mortgage—owner-occupied	133		15		118		20		98		38		39.8
Commercial real estate construction—owner-occupied	7		1		6		—		6		3		57.1
Total commercial	620		96		524		49		475		144		38.7
Commercial investor real estate mortgage	6		1		5		—		5		2		50.0
Commercial investor real estate construction	1		—		1		—		1		—		—
Total investor real estate	7		1		6		—		6		2		42.9
Residential first mortgage	42		11		31		—		31		3		33.3
Home equity	10		1		9		—		9		—		10.0
Total consumer	52		12		40		—		40		3		28.8
	$	679	$	109	$	570	$	49	$	521	$	149	38.0	%

	Accruing Impaired Loans As of December 31, 2017
					Book Value(3)
	Unpaid Principal Balance(1)		Charge-offs and Payments Applied(2)		Total Impaired Loans on Accrual Status		Impaired Loans on Accrual Status with No Related Allowance		Impaired Loans on Accrual Status with Related Allowance		Related Allowance for Loan Losses		Coverage %(4)
	(Dollars in millions)
Commercial and industrial	$	154	$	8	$	146	$	1	$	145	$	19	17.5	%
Commercial real estate mortgage—owner-occupied	90		5		85		—		85		8		14.4
Commercial real estate construction—owner-occupied	1		—		1		—		1		—		—
Total commercial	245		13		232		1		231		27		16.3
Commercial investor real estate mortgage	63		2		61		—		61		3		7.9
Commercial investor real estate construction	29		—		29		—		29		3		10.3
Total investor real estate	92		2		90		—		90		6		8.7
Residential first mortgage	419		13		406		—		406		39		12.4
Home equity	251		1		250		—		250		5		2.4
Consumer credit card	1		—		1		—		1		—		—
Other consumer	9		—		9		—		9		—		—
Total consumer	680		14		666		—		666		44		8.5
	$	1,017	$	29	$	988	$	1	$	987	$	77	10.4	%

25

	Total Impaired Loans As of December 31, 2017
					Book Value(3)
	Unpaid Principal Balance(1)		Charge-offs and Payments Applied(2)		Total Impaired Loans		Impaired Loans with No Related Allowance		Impaired Loans with Related Allowance		Related Allowance for Loan Losses		Coverage %(4)
	(Dollars in millions)
Commercial and industrial	$	634	$	88	$	546	$	30	$	516	$	122	33.1	%
Commercial real estate mortgage—owner-occupied	223		20		203		20		183		46		29.6
Commercial real estate construction—owner-occupied	8		1		7		—		7		3		50.0
Total commercial	865		109		756		50		706		171		32.4
Commercial investor real estate mortgage	69		3		66		—		66		5		11.6
Commercial investor real estate construction	30		—		30		—		30		3		10.0
Total investor real estate	99		3		96		—		96		8		11.1
Residential first mortgage	461		24		437		—		437		42		14.3
Home equity	261		2		259		—		259		5		2.7
Consumer credit card	1		—		1		—		1		—		—
Other consumer	9		—		9		—		9		—		—
Total consumer	732		26		706		—		706		47		10.0
	$	1,696	$	138	$	1,558	$	50	$	1,508	$	226	21.5	%

________

(1) Unpaid principal balance represents the contractual obligation due from the customer and includes the net book value plus charge-offs and payments applied.

(2) Charge-offs and payments applied represents cumulative partial charge-offs taken, as well as interest payments received that have been applied against the outstanding principal balance.

(3) Book value represents the unpaid principal balance less charge-offs and payments applied; it is shown before any allowance for loan losses.

(4) Coverage % represents charge-offs and payments applied plus the related allowance as a percent of the unpaid principal balance.

The following table presents the average balances of total impaired loans and interest income for the three months ended March 31, 2018 and 2017. Interest income recognized represents interest on accruing loans modified in a TDR.

	Three Months Ended March 31
	2018				2017
	Average Balance		Interest Income Recognized		Average Balance		Interest Income Recognized
	(In millions)
Commercial and industrial	$	533	$	3	$	819	$	2
Commercial real estate mortgage—owner-occupied	166		3		264		1
Commercial real estate construction—owner-occupied	6		—		6		—
Total commercial	705		6		1,089		3
Commercial investor real estate mortgage	76		1		91		1
Commercial investor real estate construction	30		—		33		—
Total investor real estate	106		1		124		1
Residential first mortgage	288		2		455		4
Home equity	252		3		295		4
Consumer credit card	1		—		2		—
Other consumer	8		—		10		—
Total consumer	549		5		762		8
Total impaired loans	$	1,360	$	12	$	1,975	$	12

26

TROUBLED DEBT RESTRUCTURINGS

Regions regularly modifies commercial and investor real estate loans in order to facilitate a workout strategy. Similarly, Regions works to meet the individual needs of consumer borrowers to stem foreclosure through its CAP. Refer to Note 6 "Allowance For Credit Losses" in the 2017 Annual Report on Form 10-K for additional information regarding the Company's TDRs.

Further discussion related to TDRs, including their impact on the allowance for loan losses and designation of TDRs in periods subsequent to the modification is included in Note 1 "Summary of Significant Accounting Policies" in the 2017 Annual Report on Form 10-K.

The following tables present the end of period balance for loans modified in a TDR during the periods presented by portfolio segment and class, and the financial impact of those modifications. The tables include modifications made to new TDRs, as well as renewals of existing TDRs. Loans first reported as TDRs during the three months ended March 31, 2018 and 2017 totaled approximately $171 million and $128 million, respectively.

	Three Months Ended March 31, 2018
				Financial Impact of Modifications Considered TDRs
	Number of Obligors	Recorded Investment		Increase in Allowance at Modification
	(Dollars in millions)
Commercial and industrial	29	$	164	$	2
Commercial real estate mortgage—owner-occupied	18	14		—
Total commercial	47	178		2
Commercial investor real estate mortgage	10	19		1
Total investor real estate	10	19		1
Residential first mortgage	53	8		1
Home equity	17	1		—
Consumer credit card	14	—		—
Indirect—vehicles and other consumer	13	—		—
Total consumer	97	9		1
	154	$	206	$	4

	Three Months Ended March 31, 2017
				Financial Impact of Modifications Considered TDRs
	Number of Obligors	Recorded Investment		Increase in Allowance at Modification
	(Dollars in millions)
Commercial and industrial	31	$	99	$	3
Commercial real estate mortgage—owner-occupied	31	28		1
Commercial real estate construction—owner-occupied	2	1		—
Total commercial	64	128		4
Commercial investor real estate mortgage	12	19		—
Commercial investor real estate construction	3	26		1
Total investor real estate	15	45		1
Residential first mortgage	49	8		1
Home equity	58	5		—
Consumer credit card	19	—		—
Indirect—vehicles and other consumer	47	1		—
Total consumer	173	14		1
	252	$	187	$	6

27

TDRs that defaulted during the three months ended March 31, 2018 and 2017, and that were modified in the previous twelve months (i.e., the twelve months prior to the default) were immaterial. At March 31, 2018, approximately $118 million of commercial and investor real estate loans modified in a TDR during the three months ended March 31, 2018 were on non-accrual status.

At March 31, 2018, Regions had restructured binding unfunded commitments totaling $21 million where a concession was granted and the borrower was in financial difficulty.

NOTE 5. SERVICING OF FINANCIAL ASSETS

RESIDENTIAL MORTGAGE BANKING ACTIVITIES

The fair value of residential MSRs is calculated using various assumptions including future cash flows, market discount rates, expected prepayment rates, servicing costs and other factors. A significant change in prepayments of mortgages in the servicing portfolio could result in significant changes in the valuation adjustments, thus creating potential volatility in the carrying amount of residential MSRs. The Company compares fair value estimates and assumptions to observable market data where available, and also considers recent market activity and actual portfolio experience.

The table below presents an analysis of residential MSRs under the fair value measurement method:

	Three Months Ended March 31
	2018			2017
	(In millions)
Carrying value, beginning of period	$	336		$	324
Additions	8			8
Increase (decrease) in fair value:
Due to change in valuation inputs or assumptions	22			4
Economic amortization associated with borrower repayments (1)	(10		)	(10		)
Carrying value, end of period	$	356		$	326

________

(1) "Economic amortization associated with borrower repayments" includes both total loan payoffs as well as partial paydowns.

On April 28, 2017, the Company purchased the rights to service approximately $2.7 billion in residential mortgage loans for approximately $30 million.

Data and assumptions used in the fair value calculation, as well as the valuation’s sensitivity to rate fluctuations, related to residential MSRs (excluding related derivative instruments) are as follows:

	March 31
	2018			2017
	(Dollars in millions)
Unpaid principal balance	$	31,641		$	30,960
Weighted-average CPR (%)	9.0		%	7.6		%
Estimated impact on fair value of a 10% increase	$	(24	)	$	(19	)
Estimated impact on fair value of a 20% increase	$	(43	)	$	(34	)
Option-adjusted spread (basis points)	842			1,058
Estimated impact on fair value of a 10% increase	$	(12	)	$	(13	)
Estimated impact on fair value of a 20% increase	$	(24	)	$	(27	)
Weighted-average coupon interest rate	4.1		%	4.2		%
Weighted-average remaining maturity (months)	280			280
Weighted-average servicing fee (basis points)	27.3			27.4

The sensitivity calculations above are hypothetical and should not be considered to be predictive of future performance. Changes in fair value based on adverse changes in assumptions generally cannot be extrapolated because the relationship of the change in assumption to the change in fair value may not be linear. Also, the effect of an adverse variation in a particular assumption on the fair value of residential MSRs is calculated without changing any other assumption, while in reality changes in one factor

28

may result in changes in another, which may either magnify or counteract the effect of the change. The derivative instruments utilized by Regions would serve to reduce the estimated impacts to fair value included in the table above.

The following table presents servicing related fees, which includes contractually specified servicing fees, late fees and other ancillary income resulting from the servicing of residential mortgage loans:

	Three Months Ended March 31
	2018		2017
	(In millions)
Servicing related fees and other ancillary income	$	23	$	23

Residential mortgage loans are sold in the secondary market with standard representations and warranties regarding certain characteristics such as the quality of the loan, the absence of fraud, the eligibility of the loan for sale and the future servicing associated with the loan. Regions may be required to repurchase these loans at par, or make-whole or indemnify the purchasers for losses incurred when representations and warranties are breached.

Regions maintains an immaterial repurchase liability related to residential mortgage loans sold with representations and warranty provisions. This repurchase liability is reported in other liabilities on the consolidated balance sheets and reflects management’s estimate of losses based on historical repurchase and loss trends, as well as other factors that may result in anticipated losses different from historical loss trends. Adjustments to this reserve are recorded in other non-interest expense on the consolidated statements of income.

COMMERCIAL MORTGAGE BANKING ACTIVITIES

Regions is an approved DUS lender. The DUS program provides liquidity to the multi-family housing market. In connection with the DUS program, Regions services commercial loans, retains commercial MSRs and intangible assets associated with the DUS license, and assumes a loss share guarantee associated with the loans. See Note 1 "Summary of Significant Accounting Policies" in the 2017 Annual Report on Form 10-K for additional information. Also see Note 13 herein for additional information related to the guarantee.

As of March 31, 2018 and December 31, 2017, the DUS servicing portfolio was approximately $2.8 billion and $2.9 billion, respectively. The related commercial MSRs were valued at approximately $47 million and $48 million at March 31, 2018 and December 31, 2017, respectively. The estimated fair value of the loss share guarantee was valued at approximately $4 million at both March 31, 2018 and December 31, 2017.

NOTE 6. GOODWILL

Goodwill allocated to each reportable segment (each a reporting unit) is presented as follows:

	March 31, 2018		December 31, 2017
	(In millions)
Corporate Bank	$	2,474	$	2,474
Consumer Bank	1,978		1,978
Wealth Management	452		452
	$	4,904	$	4,904

Regions evaluates each reporting unit’s goodwill for impairment on an annual basis in the fourth quarter, or more often if events or circumstances change that would more likely than not reduce the fair value of a reporting unit below its carrying value. A detailed description of the Company’s methodology and valuation approaches used to determine the estimated fair value of each reporting unit is included in the consolidated financial statements of the Annual Report on Form 10-K for the year ended December 31, 2017. Adverse changes in the economic environment, declining operations, or other factors could result in a decline in the implied fair value of goodwill.

29

During the first quarter of 2018, Regions assessed events and circumstances for all three reporting units as of March 31, 2018, and through the date of the filing of this Quarterly Report on Form 10-Q that could potentially indicate goodwill impairment. The indicators assessed included:

• Recent operating performance,

• Changes in market capitalization,

• Regulatory actions and assessments,

• Changes in the business climate (including legislation, legal factors, and competition),

• Company-specific factors (including changes in key personnel, asset impairments, and business dispositions), and

• Trends in the banking industry.

After assessing the indicators noted above, Regions determined that it was not more likely than not that the fair value of each of its reporting units had declined below their carrying value as of March 31, 2018. Therefore, Regions determined that a test of goodwill impairment was not required for each of Regions’ reporting units for the March 31, 2018 interim period.

NOTE 7. STOCKHOLDERS’ EQUITY AND ACCUMULATED OTHER COMPREHENSIVE INCOME (LOSS)

PREFERRED STOCK

The following table presents a summary of the non-cumulative perpetual preferred stock:

								March 31, 2018		December 31, 2017
	Issuance Date	Earliest Redemption Date	Dividend Rate			Liquidation Amount		Carrying Amount		Carrying Amount
	(Dollars in millions)
Series A	11/1/2012	12/15/2017	6.375	%		$	500	$	387	$	387
Series B	4/29/2014	9/15/2024	6.375	%	(1)	500		433		433
						$	1,000	$	820	$	820

_________

(1) Dividends, if declared, will be paid quarterly at an annual rate equal to (i) for each period beginning prior to September 15, 2024, 6.375%, and (ii) for each period beginning on or after September 15, 2024, three-month LIBOR plus 3.536%.

For each preferred stock issuance listed above, Regions issued depositary shares, each representing a 1/40th ownership interest in a share of the Company's preferred stock, with a liquidation preference of $1,000.00 per share of preferred stock (equivalent to $25.00 per depositary share). Dividends on the preferred stock, if declared, accrue and are payable quarterly in arrears. The preferred stock has no stated maturity and redemption is solely at Regions' option, subject to regulatory approval, in whole, or in part, after the earliest redemption date or in whole, but not in part, within 90 days following a regulatory capital treatment event for the Series A preferred stock or at any time following a regulatory capital treatment event for the Series B preferred stock.

The Board of Directors declared $8 million in cash dividends on both Series A and Series B Preferred Stock during the first three months of 2018 and 2017.

In the event Series A and Series B preferred shares are redeemed at the liquidation amounts, $113 million and $67 million excess of the redemption amount over the carrying amount will be recognized, respectively. Approximately $100 million of Series A preferred dividends that were recorded as a reduction of preferred stock, including related surplus, will be recorded as a reduction to retained earnings, and approximately $13 million of related issuance costs that were recorded as a reduction of preferred stock, including related surplus, will be recorded as a reduction to net income available to common shareholders. Approximately $52 million of Series B preferred dividends that were recorded as a reduction of preferred stock, including related surplus, will be recorded as a reduction to retained earnings, and approximately $15 million of related issuance costs that were recorded as a reduction of preferred stock, including related surplus, will be recorded as a reduction to net income available to common shareholders.

30

COMMON STOCK

On June 28, 2017, Regions received no objection from the Federal Reserve to its 2017 capital plan that was submitted as part of the CCAR process, which included the repurchase of common shares and a common stock dividend increase. As part of the Company's capital plan, the Board authorized a new $1.47 billion common stock repurchase plan, permitting repurchases from the beginning of the third quarter of 2017 through the second quarter of 2018. The capital plan also included a proposed increase of the quarterly common stock dividend to $0.09 per common share beginning in the third quarter of 2017, subject to quarterly Board approval.

The Board declared a $0.09 per share cash dividend on common stock for the first quarter of 2018 as compared to $0.065 per common share for the first quarter of 2017.

As of March 31, 2018, Regions had repurchased approximately 78.1 million shares of common stock at a total cost of approximately $1.2 billion under this plan. The Company continued to repurchase shares under this plan in the second quarter of 2018, and as of May 8, 2018, Regions had additional repurchases of approximately 6.9 million shares of common stock at a total cost of approximately $129.1 million. All of these shares were immediately retired upon repurchase and therefore will not be included in treasury stock.

ACCUMULATED OTHER COMPREHENSIVE INCOME (LOSS)

Activity within the balances in accumulated other comprehensive income (loss), net is shown in the following tables:

	Three Months Ended March 31, 2018
	Unrealized losses on securities transferred to held to maturity			Unrealized gains (losses) on securities available for sale			Unrealized gains (losses) on derivative instruments designated as cash flow hedges			Defined benefit pension plans and other post employment benefits			Accumulated other comprehensive income (loss), net of tax
	(In millions)
Beginning of period	$	(33	)	$	(153	)	$	(51	)	$	(512	)	$	(749	)
Net change	2			(310		)	(100		)	6			(402		)
End of period	$	(31	)	$	(463	)	$	(151	)	$	(506	)	$	(1,151	)

	Three Months Ended March 31, 2017
	Unrealized losses on securities transferred to held to maturity			Unrealized gains (losses) on securities available for sale			Unrealized gains (losses) on derivative instruments designated as cash flow hedges			Defined benefit pension plans and other post employment benefits			Accumulated other comprehensive income (loss), net of tax
	(In millions)
Beginning of period	$	(33	)	$	(106	)	$	11		$	(422	)	$	(550	)
Net change	2			1			(23		)	5			(15		)
End of period	$	(31	)	$	(105	)	$	(12	)	$	(417	)	$	(565	)

31

The following table presents amounts reclassified out of accumulated other comprehensive income (loss) for the three months ended March 31, 2018 and 2017:

	Three Months Ended March 31, 2018			Three Months Ended March 31, 2017
Details about Accumulated Other Comprehensive Income (Loss) Components	Amount Reclassified from Accumulated Other Comprehensive Income (Loss)(1)			Amount Reclassified from Accumulated Other Comprehensive Income (Loss)(1)			Affected Line Item in the Consolidated Statements of Income
	(In millions)
Unrealized losses on securities transferred to held to maturity:
	$	(3	)	$	(3	)	Net interest income and other financing income
	1			1			Tax (expense) or benefit
	$	(2	)	$	(2	)	Net of tax
Unrealized gains and (losses) on available for sale securities:
	$	—		$	—		Securities gains (losses), net
	—			—			Tax (expense) or benefit
	$	—		$	—		Net of tax
Gains and (losses) on cash flow hedges:
Interest rate contracts	$	11		$	31		Net interest income and other financing income
	(3		)	(12		)	Tax (expense) or benefit
	$	8		$	19		Net of tax
Amortization of defined benefit pension plans and other post employment benefits:
Actuarial gains (losses)	$	(9	)	$	(9	)	(2)
	(9		)	(9		)	Total before tax
	2			3			Tax (expense) or benefit
	$	(7	)	$	(6	)	Net of tax
Total reclassifications for the period	$	(1	)	$	11		Net of tax

________

(1) Amounts in parentheses indicate reductions to net income.

(2) This accumulated other comprehensive income (loss) component is included in the computation of net periodic pension cost and is included in other non-interest expense on the consolidated statements of income (see Note 9 for additional details).

32

NOTE 8. EARNINGS (LOSS) PER COMMON SHARE

The following table sets forth the computation of basic earnings (loss) per common share and diluted earnings (loss) per common share:

	Three Months Ended March 31
	2018			2017
	(In millions, except per share amounts)
Numerator:
Income from continuing operations	$	414		$	293
Preferred stock dividends	(16		)	(16		)
Income from continuing operations available to common shareholders	398			277
Income (loss) from discontinued operations, net of tax	—			8
Net income available to common shareholders	$	398		$	285
Denominator:
Weighted-average common shares outstanding—basic	1,127			1,209
Potential common shares	14			15
Weighted-average common shares outstanding—diluted	1,141			1,224
Earnings per common share from continuing operations available to common shareholders(1):
Basic	$	0.35		$	0.23
Diluted	0.35			0.23
Earnings (loss) per common share from discontinued operations(1):
Basic	$	0.00		$	0.01
Diluted	0.00			0.01
Earnings per common share(1):
Basic	$	0.35		$	0.24
Diluted	0.35			0.23

________

(1)  Certain per share amounts may not appear to reconcile due to rounding.

The effect from the assumed exercise of 6 million and 15 million stock options, restricted stock units and awards and performance stock units for the three months ended March 31, 2018 and 2017, respectively, was not included in the above computations of diluted earnings per common share because such amounts would have had an antidilutive effect on earnings per common share.

33

NOTE 9. PENSION AND OTHER POSTRETIREMENT BENEFITS

Regions' defined benefit pension plans cover only certain employees as the pension plans are closed to new entrants. The Company also sponsors a SERP, which is a non-qualified pension plan that provides certain senior executive officers defined benefits in relation to their compensation.

Net periodic pension cost (credit) includes the following components:

	Qualified Plans						Non-qualified Plans				Total
	Three Months Ended March 31
	2018			2017			2018		2017		2018			2017
	(In millions)
Service cost	$	9		$	8		$	1	$	1	$	10		$	9
Interest cost	18			18			1		1		19			19
Expected return on plan assets	(37		)	(35		)	—		—		(37		)	(35		)
Amortization of actuarial loss	8			8			1		1		9			9
Net periodic pension cost (credit)	$	(2	)	$	(1	)	$	3	$	3	$	1		$	2

The service cost component of net periodic pension cost is recorded in salaries and employee benefits on the consolidated statements of income. Components other than service cost are recorded in other non-interest expense on the consolidated statements of income.

Regions' funding policy for the qualified plans is to contribute annually at least the amount required by IRS minimum funding standards. Regions made a contribution of $100 million for the 2017 plan year during the first quarter of 2018.

Regions also provides other postretirement benefits such as defined benefit health care plans and life insurance plans that cover certain retired employees. There was no material impact from other postretirement benefits on the consolidated financial statements for the three months endedMarch 31, 2018 or 2017.

34

NOTE 10. DERIVATIVE FINANCIAL INSTRUMENTS AND HEDGING ACTIVITIES

The following tables present the notional amount and estimated fair value of derivative instruments on a gross basis as of March 31, 2018 and December 31, 2017. Beginning in the first quarter of 2018, variation margin payments made for derivatives cleared through LCH Limited are legally characterized as settlements of the derivatives. Exchange traded derivatives cleared through LCH Limited were not offset prior to January 2018.

	March 31, 2018						December 31, 2017
	Notional Amount		Estimated Fair Value				Notional Amount		Estimated Fair Value
			Gain(1)		Loss(1)				Gain(1)		Loss(1)
	(In millions)
Derivatives in fair value hedging relationships:
Interest rate swaps	$	3,597					$	3,060	$	1	$	43
Derivatives in cash flow hedging relationships:
Interest rate swaps	7,825						6,825		5		188
Total derivatives designated as hedging instruments	$	11,422					$	9,885	$	6	$	231
Derivatives not designated as hedging instruments:
Interest rate swaps	$	41,166	$	140	$	307	$	40,841	$	308	$	342
Interest rate options	5,063		39		23		4,598		23		15
Interest rate futures and forward commitments	42,341		10		11		20,404		6		5
Other contracts	6,066		59		55		5,721		51		48
Total derivatives not designated as hedging instruments	$	94,636	$	248	$	396	$	71,564	$	388	$	410
Total derivatives	$	106,058	$	248	$	396	$	81,449	$	394	$	641
Total gross derivative instruments, before netting			$	248	$	396			$	394	$	641
Less: Legally enforceable master netting agreements			112		112				107		107
Less: Cash collateral received/posted			30		113				34		131
Total gross derivative instruments, after netting (2)			$	106	$	171			$	253	$	403

_________

(1) Derivatives in a gain position are recorded as other assets and derivatives in a loss position are recorded as other liabilities on the consolidated balance sheets. There is no fair value presented for contracts that are characterized as settled daily.

(2) As of March 31, 2018, financial instruments posted of $49 million were not offset in the consolidated balance sheets. As of December 31, 2017, cash collateral posted of $257 million and financial instruments posted of $50 million were not offset in the consolidated balance sheets.

HEDGING DERIVATIVES

Derivatives entered into to manage interest rate risk and facilitate asset/liability management strategies are designated as hedging derivatives. Derivative financial instruments that qualify in a hedging relationship are classified, based on the exposure being hedged, as either fair value hedges or cash flow hedges. See Note 1 "Summary of Significant Accounting Policies" of the Annual Report on Form 10-K for the year ended December 31, 2017, for additional information regarding accounting policies for derivatives.

FAIR VALUE HEDGES

Fair value hedge relationships mitigate exposure to the change in fair value of an asset, liability or firm commitment.

Regions enters into interest rate swap agreements to manage interest rate exposure on the Company’s fixed-rate borrowings, which includes long-term debt and certificates of deposit. These agreements involve the receipt of fixed-rate amounts in exchange for floating-rate interest payments over the life of the agreements. Regions enters into interest rate swap agreements to manage interest rate exposure on certain of the Company's fixed-rate available for sale debt securities. These agreements involve the payment of fixed-rate amounts in exchange for floating-rate interest receipts.

CASH FLOW HEDGES

Cash flow hedge relationships mitigate exposure to the variability of future cash flows or other forecasted transactions.

Regions enters into interest rate swap agreements to manage overall cash flow changes related to interest rate risk exposure on LIBOR-based loans. The agreements effectively modify the Company’s exposure to interest rate risk by utilizing receive fixed/pay LIBOR interest rate swaps.

Regions recognized an unrealized after-tax gain of $136 million and $154 million in accumulated other comprehensive income (loss) at March 31, 2018 and 2017, respectively, related to terminated cash flow hedges of loan instruments, which will

35

be amortized into earnings in conjunction with the recognition of interest payments through 2025. Regions recognized pre-tax income of $15 million and $19 million during the three months ended March 31, 2018 and 2017, respectively related to the amortization of discontinued cash flow hedges of loan instruments.

Regions expects to reclassify out of accumulated other comprehensive income (loss) and into earnings approximately $4 million in pre-tax income due to the receipt or payment of interest payments on all cash flow hedges within the next twelve months. Included in this amount is $50 million in pre-tax net income related to the amortization of discontinued cash flow hedges. The maximum length of time over which Regions is hedging its exposure to the variability in future cash flows for forecasted transactions is approximately seven years as of March 31, 2018, and a portion of these hedges are forward starting.

The following tables present the effect of hedging derivative instruments on the consolidated statements of income:

	Three Months Ended March 31, 2018
	Interest Income					Interest Expense					Non-interest expense
	Debt securities-taxable			Loans, including fees		Deposits		Long-term borrowings			Other
Total amounts presented in the consolidated statements of income	$	154		$	851	$	49	$	72		$	225
Gains/(losses) on fair value hedging relationships:
Interest rate contracts:
Amounts related to interest settlements on derivatives	$	—		$	—	$	—	$	(1	)	$	—
Recognized on derivatives	3			—		—		(32		)	—
Recognized on hedged items	(3		)	—		—		32			—
Net income (expense) recognized on fair value hedges	$	—		$	—	$	—	$	(1	)	$	—
Gains/(losses) on cash flow hedging relationships: (1)
Interest rate contracts:
Realized gains (losses) reclassified from AOCI into net income (2)	$	—		$	11	$	—	$	—		$	—
Net income (expense) recognized on cash flow hedges	$	—		$	11	$	—	$	—		$	—

	Three Months Ended March 31, 2017
	Interest Income					Interest Expense				Non-interest expense
	Securities-taxable			Loans, including fees		Deposits		Long-term borrowings		Other
Total amounts presented in the consolidated statements of income	$	147		$	773	$	35	$	50	$	220
Gains/(losses) on fair value hedging relationships:
Interest rate contracts:
Amounts related to interest settlements on derivatives	$	(1	)	$	—	$	—	$	1	$	—
Recognized on derivatives	—			—		—		—		—
Recognized on hedged items	—			—		—		—		—
Net income (expense) recognized on fair value hedges	$	(1	)	$	—	$	—	$	1	$	—
Gains/(losses) on cash flow hedging relationships: (1)
Interest rate contracts:
Realized gains (losses) reclassified from AOCI into net income (2)	$	—		$	31	$	—	$	—	$	—
Net income (expense) recognized on cash flow hedges	$	—		$	31	$	—	$	—	$	—

_____

(1) See Note 7 for gain or (loss) recognized for cash flow hedges in AOCI.

(2) Pre-tax

The following table presents the carrying amount and associated cumulative basis adjustment related to the application of hedge accounting that is included in the carrying amount of hedged assets and liabilities in fair value hedging relationships.

36

	March 31, 2018
	Hedged Items Currently Designated						Hedged Items No Longer Designated
	Carrying Amount of Assets/(Liabilities)			Hedge Accounting Basis Adjustment Assets/(Liabilities)			Carrying Amount of Assets/(Liabilities)			Hedge Accounting Basis Adjustment Assets/(Liabilities)
	(In millions)
Debt securities available for sale	$	210		$	(3	)	$	577		$	7
Long-term borrowings	(3,321		)	82			(101		)	—

DERIVATIVES NOT DESIGNATED AS HEDGING INSTRUMENTS

The Company holds a portfolio of interest rate swaps, option contracts, and futures and forward commitments that result from transactions with its commercial customers in which they manage their risks by entering into a derivative with Regions. The Company monitors and manages the net risk in this customer portfolio and enters into separate derivative contracts in order to reduce the overall exposure to pre-defined limits. For both derivatives with its end customers and derivatives Regions enters into to mitigate the risk in this portfolio, the Company is subject to market risk and the risk that the counterparty will default. The contracts in this portfolio are not designated as accounting hedges and are marked-to market through earnings (in capital markets fee income and other) and included in other assets and other liabilities, as appropriate.

Regions enters into interest rate lock commitments, which are commitments to originate mortgage loans whereby the interest rate on the loan is determined prior to funding and the customers have locked into that interest rate. At March 31, 2018 and December 31, 2017, Regions had $372 million and $197 million, respectively, in total notional amount of interest rate lock commitments. Regions manages market risk on interest rate lock commitments and mortgage loans held for sale with corresponding forward sale commitments. Residential mortgage loans held for sale are recorded at fair value with changes in fair value recorded in mortgage income. Commercial mortgage loans held for sale are recorded at either the lower of cost or market or at fair value based on management's election. At March 31, 2018 and December 31, 2017, Regions had $737 million and $481 million, respectively, in total notional amounts related to these forward sale commitments. Changes in mark-to-market from both interest rate lock commitments and corresponding forward sale commitments related to residential mortgage loans are included in mortgage income. Changes in mark-to-market from both interest rate lock commitments and corresponding forward sale commitments related to commercial mortgage loans are included in capital markets fee income and other.

Regions has elected to account for residential MSRs at fair value with any changes to fair value being recorded within mortgage income. Concurrent with the election to use the fair value measurement method, Regions began using various derivative instruments, in the form of forward rate commitments, futures contracts, swaps and swaptions to mitigate the effect of changes in the fair value of its residential MSRs in its consolidated statements of income. As of March 31, 2018 and December 31, 2017, the total notional amount related to these contracts was $5.0 billion and $4.8 billion, respectively.

The following table presents the location and amount of gain or (loss) recognized in income on derivatives not designated as hedging instruments in the consolidated statements of income for the three months ended March 31, 2017 and 2017:

	Three Months Ended March 31
Derivatives Not Designated as Hedging Instruments	2018			2017
	(In millions)
Capital markets fee income and other(1):
Interest rate swaps	$	7		$	2
Interest rate options	7			2
Interest rate futures and forward commitments	1			2
Other contracts	2			(8		)
Total capital markets fee income and other	17			(2		)
Mortgage income:
Interest rate swaps	(18		)	(2		)
Interest rate options	3			2
Interest rate futures and forward commitments	(3		)	(8		)
Total mortgage income	(18		)	(8		)
	$	(1	)	$	(10	)

______

(1) Capital markets fee income and other is included in Other income on the consolidated statements of income.

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Credit risk, defined as all positive exposures not collateralized with cash or other assets or reserved for, at March 31, 2018 and December 31, 2017, totaled approximately $94 million and $251 million, respectively. These amounts represent the net credit risk on all trading and other derivative positions held by Regions.

CREDIT DERIVATIVES

Regions has both bought and sold credit protection in the form of participations on interest rate swaps (swap participations). These swap participations, which meet the definition of credit derivatives, were entered into in the ordinary course of business to serve the credit needs of customers. Swap participations, whereby Regions has purchased credit protection, entitle Regions to receive a payment from the counterparty if the customer fails to make payment on any amounts due to Regions upon early termination of the swap transaction and have maturities between 2018 and 2024. Swap participations, whereby Regions has sold credit protection have maturities between 2018 and 2025. For contracts where Regions sold credit protection, Regions would be required to make payment to the counterparty if the customer fails to make payment on any amounts due to the counterparty upon early termination of the swap transaction. Regions bases the current status of the prepayment/performance risk on bought and sold credit derivatives on recently issued internal risk ratings consistent with the risk management practices of unfunded commitments.

Regions’ maximum potential amount of future payments under these contracts as of March 31, 2018 was approximately $400 million. This scenario would only occur if variable interest rates were at zero percent and all counterparties defaulted with zero recovery. The fair value of sold protection at March 31, 2018 and 2017 was immaterial. In transactions where Regions has sold credit protection, recourse to collateral associated with the original swap transaction is available to offset some or all of Regions’ obligation.

Regions has bought credit protection in the form of credit default indices. These indices, which meet the definition of credit derivatives, were entered into in the ordinary course of business to economically hedge credit spread risk in commercial mortgage loans held for sale whereby the fair value option has been elected. Credit derivatives, whereby Regions has purchased credit protection, entitle Regions to receive a payment from the counterparty if losses on the underlying index exceed a certain threshold, dependent upon the tranche rating of the capital structure.

CONTINGENT FEATURES

Certain of Regions’ derivative instrument contracts with broker-dealers contain credit-related termination provisions and/or credit-related provisions regarding the posting of collateral, allowing those broker-dealers to terminate the contracts in the event that Regions’ and/or Regions Bank’s credit ratings falls below specified ratings from certain major credit rating agencies. The aggregate fair values of all derivative instruments with any credit-risk-related contingent features that were in a liability position on March 31, 2018 and December 31, 2017, were $71 million and $91 million, respectively, for which Regions had posted collateral of $74 million and $90 million, respectively, in the normal course of business.

NOTE 11. FAIR VALUE MEASUREMENTS

See Note 1 “Summary of Significant Accounting Policies” to the consolidated financial statements of the Annual Report on Form 10-K for the year ended December 31, 2017 for a description of valuation methodologies for assets and liabilities measured at fair value on a recurring and non-recurring basis. Assets and liabilities measured at fair value rarely transfer between Level 1 and Level 2 measurements. There were no such transfers during the three month periods ended March 31, 2018 and 2017. Marketable equity securities and debt securities available for sale may be periodically transferred to or from Level 3 valuation based on management’s conclusion regarding the observability of inputs used in valuing the securities. Such transfers are accounted for as if they occur at the beginning of a reporting period.

38

The following table presents assets and liabilities measured at estimated fair value on a recurring basis and non-recurring basis as of March 31, 2018 and December 31, 2017:

	March 31, 2018								December 31, 2017
	Level 1		Level 2		Level 3(1)		Total Estimated Fair Value		Level 1		Level 2		Level 3(1)		Total Estimated Fair Value
	(In millions)
Recurring fair value measurements
Debt securities available for sale:
U.S. Treasury securities	$	327	$	—	$	—	$	327	$	331	$	—	$	—	$	331
Federal agency securities	—		42		—		42		—		28		—		28
Mortgage-backed securities (MBS):
Residential agency	—		17,152		—		17,152		—		17,431		—		17,431
Residential non-agency	—		—		2		2		—		—		3		3
Commercial agency	—		3,661		—		3,661		—		3,714		—		3,714
Commercial non-agency	—		766		—		766		—		788		—		788
Corporate and other debt securities	—		1,132		3		1,135		—		1,105		3		1,108
Total debt securities available for sale	$	327	$	22,753	$	5	$	23,085	$	331	$	23,066	$	6	$	23,403
Loans held for sale	$	—	$	282	$	—	$	282	$	—	$	325	$	—	$	325
Marketable equity securities(2)	$	525	$	—	$	—	$	525	$	414	$	—	$	—	$	414
Residential mortgage servicing rights	$	—	$	—	$	356	$	356	$	—	$	—	$	336	$	336
Derivative assets:
Interest rate swaps	$	—	$	140	$	—	$	140	$	—	$	314	$	—	$	314
Interest rate options	—		26		13		39		—		18		5		23
Interest rate futures and forward commitments	—		10		—		10		—		6		—		6
Other contracts	2		57		—		59		2		49		—		51
Total derivative assets	$	2	$	233	$	13	$	248	$	2	$	387	$	5	$	394
Derivative liabilities:
Interest rate swaps	$	—	$	307	$	—	$	307	$	—	$	573	$	—	$	573
Interest rate options	—		23		—		23		—		15		—		15
Interest rate futures and forward commitments	—		11		—		11		—		5		—		5
Other contracts	2		53		—		55		2		46		—		48
Total derivative liabilities	$	2	$	394	$	—	$	396	$	2	$	639	$	—	$	641
Non-recurring fair value measurements
Loans held for sale	$	—	$	—	$	7	$	7	$	—	$	—	$	20	$	20
Equity investments without a readily determinable fair value(3)	—		—		13		13		—		—		—		—
Foreclosed property and other real estate	—		18		4		22		—		24		9		33

_________

(1) All following disclosures related to Level 3 recurring and non-recurring assets do not include those deemed to be immaterial.

(2) Marketable equity securities were reclassified from trading account securities and securities available for sale to other earning assets, beginning in the first quarter of 2018, with the adoption of new accounting guidance. Prior periods have been reclassified to conform to current period presentation.

(3) With the adoption of new accounting guidance, effective January 1, 2018, equity investments without a readily determinable fair value are required to be adjusted prospectively to estimated fair value when an observable price transaction for a same or similar investment with the same issuer occurs.

Assets and liabilities in all levels could result in volatile and material price fluctuations. Realized and unrealized gains and losses on Level 3 assets represent only a portion of the risk to market fluctuations in Regions’ consolidated balance sheets. Further, derivatives included in Levels 2 and 3 are used by ALCO in a holistic approach to managing price fluctuation risks.

39

The following tables illustrate rollforwards for all material assets and liabilities measured at fair value on a recurring basis using significant unobservable inputs (Level 3) for the three months ended March 31, 2018 and 2017, respectively. The net changes in realized gains (losses) included in earnings related to Level 3 assets and liabilities held at March 31, 2018 and 2017 are not material.

	Three Months Ended March 31, 2018
	Opening Balance January 1, 2018		Total Realized / Unrealized Gains or Losses			Purchases	Sales	Issuances	Settlements	Transfers into Level 3	Transfers out of Level 3	Closing Balance March 31, 2018
			Included in Earnings		Included in Other Compre- hensive Income (Loss)
	(In millions)
Level 3 Instruments Only
Residential mortgage servicing rights	$	336	12	(1)	—	8	—	—	—	—	—	$	356

	Three Months Ended March 31, 2017
	Opening Balance January 1, 2017		Total Realized / Unrealized Gains or Losses				Purchases	Sales	Issuances	Settlements	Transfers into Level 3	Transfers out of Level 3	Closing Balance March 31, 2017
			Included in Earnings			Included in Other Compre- hensive Income (Loss)
	(In millions)
Level 3 Instruments Only
Residential mortgage servicing rights	$	324	(6	)	(1)	—	8	—	—	—	—	—	$	326

_________

(1) Included in mortgage income.

The following table presents the fair value adjustments related to non-recurring fair value measurements:

	Three Months Ended March 31
	2018			2017
	(In millions)
Loans held for sale	$	(3	)	$	(4	)
Foreclosed property and other real estate	(5		)	(4		)
Equity investments without a readily determinable fair value	7			—

The following tables present detailed information regarding material assets and liabilities measured at fair value using significant unobservable inputs (Level 3) as of March 31, 2018, and December 31, 2017. The tables include the valuation techniques and the significant unobservable inputs utilized. The range of each significant unobservable input as well as the weighted-average within the range utilized at March 31, 2018, and December 31, 2017, are included. Following the tables are descriptions of the valuation techniques and the sensitivity of the techniques to changes in the significant unobservable inputs.

40

	March 31, 2018
	Level 3 Estimated Fair Value at March 31, 2018	Valuation Technique	Unobservable Input(s)	Quantitative Range of Unobservable Inputs and (Weighted-Average)
	(Dollars in millions)
Recurring fair value measurements:
Residential mortgage servicing rights(1)	$356	Discounted cash flow	Weighted-average CPR (%)	3.6% - 28.0% (9.0%)
			OAS (%)	7.8% - 15.0% (8.4%)

_________

(1) See Note 5 for additional disclosures related to assumptions used in the fair value calculation for residential mortgage servicing rights.

	December 31, 2017
	Level 3 Estimated Fair Value at December 31, 2017	Valuation Technique	Unobservable Input(s)	Quantitative Range of Unobservable Inputs and (Weighted-Average)
	(Dollars in millions)
Recurring fair value measurements:
Residential mortgage servicing rights(1)	$336	Discounted cash flow	Weighted-average CPR (%)	7.9% - 28.1% (9.9%)
			OAS (%)	8.1% - 15.0% (8.6%)

_________

(1) See Note 7 to the consolidated financial statements of the Annual Report on Form 10-K for the year ended December 31, 2017 for additional disclosures related to assumptions used in the fair value calculation for residential mortgage servicing rights.

RECURRING FAIR VALUE MEASUREMENTS USING SIGNIFICANT UNOBSERVABLE INPUTS

Residential mortgage servicing rights

The significant unobservable inputs used in the fair value measurement of residential MSRs are OAS and CPR. This valuation requires generating cash flow projections over multiple interest rate scenarios and discounting those cash flows at a risk-adjusted rate. Additionally, the impact of prepayments and changes in the OAS are based on a variety of underlying inputs including servicing costs. Increases or decreases to the underlying cash flow inputs will have a corresponding impact on the value of the MSR asset. The net change in unrealized gains (losses) included in earnings related to MSRs held at period end are disclosed as the changes in valuation inputs or assumptions included in the MSR rollforward table in Note 5. See Note 5 for these amounts and additional disclosures related to assumptions used in the fair value calculation for MSRs.

FAIR VALUE OPTION

Regions has elected the fair value option for all FNMA and FHLMC eligible residential mortgage loans and certain commercial mortgage loans originated with the intent to sell. These elections allow for a more effective offset of the changes in fair values of the loans and the derivative instruments used to economically hedge them without the burden of complying with the requirements for hedge accounting. Regions has not elected the fair value option for other loans held for sale primarily because they are not economically hedged using derivative instruments. Fair values of residential mortgage loans held for sale are based on traded market prices of similar assets where available and/or discounted cash flows at market interest rates, adjusted for securitization activities that include servicing values and market conditions, and are recorded in loans held for sale in the consolidated balance sheets.

The following table summarizes the difference between the aggregate fair value and the aggregate unpaid principal balance for mortgage loans held for sale measured at fair value:

	March 31, 2018						December 31, 2017
	Aggregate Fair Value		Aggregate Unpaid Principal		Aggregate Fair Value Less Aggregate Unpaid Principal		Aggregate Fair Value		Aggregate Unpaid Principal		Aggregate Fair Value Less Aggregate Unpaid Principal
	(In millions)
Mortgage loans held for sale, at fair value	$	282	$	273	$	9	$	325	$	314	$	11

41

Interest income on mortgage loans held for sale is recognized based on contractual rates and is reflected in interest income on loans held for sale in the consolidated statements of income. The following table details net gains and losses resulting from changes in fair value of these loans, which were recorded in mortgage income in the consolidated statements of income during the three months ended March 31, 2018 and 2017. These changes in fair value are mostly offset by economic hedging activities. An immaterial portion of these amounts was attributable to changes in instrument-specific credit risk.

	Net gains (losses) resulting from changes in fair value
	Three Months Ended March 31
	2018			2017
	(In millions)
Mortgage loans held for sale, at fair value	$	(3	)	$	4

The carrying amounts and estimated fair values, as well as the level within the fair value hierarchy, of the Company’s financial instruments as of March 31, 2018 are as follows:

	March 31, 2018
	Carrying Amount		Estimated Fair Value(1)		Level 1		Level 2		Level 3
	(In millions)
Financial assets:
Cash and cash equivalents	$	3,185	$	3,185	$	3,185	$	—	$	—
Debt securities held to maturity	1,611		1,585		—		1,585		—
Debt securities available for sale	23,085		23,085		327		22,753		5
Loans held for sale	452		452		—		439		13
Loans (excluding leases), net of unearned income and allowance for loan losses(2)(3)	77,917		76,683		—		—		76,683
Other earning assets(4)	1,190		1,190		525		665		—
Derivative assets	248		248		2		233		13
Financial liabilities:
Derivative liabilities	396		396		2		394		—
Deposits	96,990		97,015		—		97,015		—
Long-term borrowings	7,949		8,239		—		7,814		425
Loan commitments and letters of credit	77		413		—		—		413

_________

(1) Estimated fair values are consistent with an exit price concept. The assumptions used to estimate the fair values are intended to approximate those that a market participant would use in a hypothetical orderly transaction. In estimating fair value, the Company maintains a corporate governance program to make adjustments for estimated changes in interest rates, market liquidity and credit spreads in the periods they are deemed to have occurred.

(2) The estimated fair value of portfolio loans assumes sale of the loans to a third-party financial investor. Accordingly, the value to the Company if the loans were held to maturity is not reflected in the fair value estimate. In the current whole loan market, financial investors are generally requiring a higher rate of return than the return inherent in loans if held to maturity. The fair value discount on the loan portfolio's net carrying amount at March 31, 2018 was $1.2 billion or 1.6 percent.

(3) Excluded from this table is the capital lease carrying amount of $1.1 billion at March 31, 2018.

(4) Excluded from this table is the operating lease carrying amount of $450 million at March 31, 2018.

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The carrying amounts and estimated fair values, as well as the level within the fair value hierarchy, of the Company's financial instruments as of December 31, 2017 are as follows:

	December 31, 2017
	Carrying Amount		Estimated Fair Value(1)		Level 1		Level 2		Level 3
	(In millions)
Financial assets:
Cash and cash equivalents	$	3,981	$	3,981	$	3,981	$	—	$	—
Debt securities held to maturity	1,658		1,667		—		1,667		—
Debt securities available for sale	23,403		23,403		331		23,066		6
Loans held for sale	348		348		—		328		20
Loans (excluding leases), net of unearned income and allowance for loan losses(2)(3)	77,942		76,871		—		—		76,871
Other earning assets(4)	1,402		1,402		414		988		—
Derivative assets	394		394		2		387		5
Financial liabilities:
Derivative liabilities	641		641		2		639		—
Deposits	96,889		96,927		—		96,927		—
Long-term borrowings	8,132		8,517		—		7,757		760
Loan commitments and letters of credit	79		540		—		—		540

_________

(1) Estimated fair values are consistent with an exit price concept. The assumptions used to estimate the fair values are intended to approximate those that a market participant would use in a hypothetical orderly transaction. In estimating fair value, the Company maintains a corporate governance program to make adjustments for estimated changes in interest rates, market liquidity and credit spreads in the periods they are deemed to have occurred.

(2) The estimated fair value of portfolio loans assumes sale of the loans to a third-party financial investor. Accordingly, the value to the Company if the loans were held to maturity is not reflected in the fair value estimate. In the current whole loan market, financial investors are generally requiring a higher rate of return than the return inherent in loans if held to maturity. The fair value discount on the loan portfolio's net carrying amount at December 31, 2017 was $1.1 billion or 1.4 percent.

(3) Excluded from this table is the capital lease carrying amount of $1.1 billion at December 31, 2017.

(4) Excluded from this table is the operating lease carrying amount of $489 million at December 31, 2017.

NOTE 12. BUSINESS SEGMENT INFORMATION

Each of Regions’ reportable segments is a strategic business unit that serves specific needs of Regions’ customers based on the products and services provided. The segments are based on the manner in which management views the financial performance of the business. The Company has three reportable segments: Corporate Bank, Consumer Bank, and Wealth Management, with the remainder split between Discontinued Operations and Other. Additional information about the Company's reportable segments is included in Regions' Annual Report on Form 10-K for the year ended December 31, 2017.

The application and development of management reporting methodologies is a dynamic process and is subject to periodic enhancements. As these enhancements are made, financial results presented by each reportable segment may be periodically revised.

Discontinued operations includes all brokerage and investment activities associated with the sale of Morgan Keegan which closed on April 2, 2012, as well as the pending sale of Regions Insurance Group, Inc. and related affiliates. See Note 2 for related discussion.

The following tables present financial information for each reportable segment for the period indicated.

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	Three Months Ended March 31, 2018
	Corporate Bank		Consumer Bank		Wealth Management		Other			Continuing Operations			Discontinued Operations		Consolidated
	(In millions)
Net interest income and other financing income (loss)	$	340	$	542	$	49	$	(22	)	$	909		$	—	$	909
Provision (credit) for loan losses	55		76		4		(145		)	(10		)	—		(10		)
Non-interest income	144		276		77		10			507			34		541
Non-interest expense	233		523		91		37			884			34		918
Income (loss) before income taxes	196		219		31		96			542			—		542
Income tax expense (benefit)	49		55		8		16			128			—		128
Net income (loss)	$	147	$	164	$	23	$	80		$	414		$	—	$	414
Average assets	$	51,037	$	35,011	$	2,359	$	34,917		$	123,324		$	170	$	123,494

	Three Months Ended March 31, 2017
	Corporate Bank		Consumer Bank		Wealth Management		Other			Continuing Operations		Discontinued Operations		Consolidated
	(In millions)
Net interest income and other financing income (loss)	$	341	$	518	$	46	$	(46	)	$	859	$	—	$	859
Provision (credit) for loan losses	67		74		5		(76		)	70		—		70
Non-interest income	123		275		74		2			474		36		510
Non-interest expense	214		513		84		32			843		23		866
Income (loss) before income taxes	183		206		31		—			420		13		433
Income tax expense (benefit)	69		78		12		(32		)	127		5		132
Net income (loss)	$	114	$	128	$	19	$	32		$	293	$	8	$	301
Average assets	$	52,340	$	35,047	$	2,518	$	34,747		$	124,652	$	158	$	124,810

NOTE 13. COMMITMENTS, CONTINGENCIES AND GUARANTEES

COMMERCIAL COMMITMENTS

Regions issues off-balance sheet financial instruments in connection with lending activities. The credit risk associated with these instruments is essentially the same as that involved in extending loans to customers and is subject to Regions’ normal credit approval policies and procedures. Regions measures inherent risk associated with these instruments by recording a reserve for unfunded commitments based on an assessment of the likelihood that the guarantee will be funded and the creditworthiness of the customer or counterparty. Collateral is obtained based on management’s assessment of the creditworthiness of the customer.

Credit risk associated with these instruments is represented by the contractual amounts indicated in the following table:

	March 31, 2018		December 31, 2017
	(In millions)
Unused commitments to extend credit	$	46,328	$	45,705
Standby letters of credit	1,436		1,348
Commercial letters of credit	76		76
Liabilities associated with standby letters of credit	28		26
Assets associated with standby letters of credit	29		28
Reserve for unfunded credit commitments	49		53

Unused commitments to extend credit—To accommodate the financial needs of its customers, Regions makes commitments under various terms to lend funds to consumers, businesses and other entities. These commitments include (among others) credit

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card and other revolving credit agreements, term loan commitments and short-term borrowing agreements. Many of these loan commitments have fixed expiration dates or other termination clauses and may require payment of a fee. Since many of these commitments are expected to expire without being funded, the total commitment amounts do not necessarily represent future liquidity requirements.

Standby letters of credit—Standby letters of credit are also issued to customers, which commit Regions to make payments on behalf of customers if certain specified future events occur. Regions has recourse against the customer for any amount required to be paid to a third party under a standby letter of credit. Historically, a large percentage of standby letters of credit expire without being funded. The contractual amount of standby letters of credit represents the maximum potential amount of future payments Regions could be required to make and represents Regions’ maximum credit risk.

Commercial letters of credit—Commercial letters of credit are issued to facilitate foreign or domestic trade transactions for customers. As a general rule, drafts will be drawn when the goods underlying the transaction are in transit.

LEGAL CONTINGENCIES

Regions and its subsidiaries are subject to loss contingencies related to litigation, claims, investigations and legal and administrative cases and proceedings arising in the ordinary course of business. Regions evaluates these contingencies based on information currently available, including advice of counsel. Regions establishes accruals for those matters when a loss contingency is considered probable and the related amount is reasonably estimable. Any accruals are periodically reviewed and may be adjusted as circumstances change. Some of Regions' exposure with respect to loss contingencies may be offset by applicable insurance coverage. In determining the amounts of any accruals or estimates of possible loss contingencies however, Regions does not take into account the availability of insurance coverage. To the extent that Regions has an insurance recovery, the proceeds are recorded in the period the recovery is received.

In addition, Regions has agreed to indemnify Raymond James for all legal matters resulting from pre-closing activities in conjunction with the sale of Morgan Keegan and recorded an indemnification obligation at fair value in the second quarter of 2012.

When it is practicable, Regions estimates possible loss contingencies, whether or not there is an accrued probable loss. When Regions is able to estimate such possible losses, and when it is reasonably possible Regions could incur losses in excess of amounts accrued, Regions discloses the aggregate estimation of such possible losses. Regions currently estimates that any such losses in excess of amounts accrued, including legal contingencies that are subject to the indemnification agreement with Raymond James, would be immaterial to Regions' financial statements as a whole. However, as available information changes, the matters for which Regions is able to estimate, as well as the estimates themselves will be adjusted accordingly.

Assessments of litigation and claims exposure are difficult because they involve inherently unpredictable factors including, but not limited to, the following: whether the proceeding is in the early stages; whether damages are unspecified, unsupported, or uncertain; whether there is a potential for punitive or other pecuniary damages; whether the matter involves legal uncertainties, including novel issues of law; whether the matter involves multiple parties and/or jurisdictions; whether discovery has begun or is not complete; whether meaningful settlement discussions have commenced; and whether the lawsuit involves class allegations. Assessments of class action litigation, which is generally more complex than other types of litigation, are particularly difficult, especially in the early stages of the proceeding when it is not known whether a class will be certified or how a potential class, if certified, will be defined. As a result, Regions may be unable to estimate reasonably possible losses with respect to some of the matters disclosed below, and the aggregated estimated amount discussed above may not include an estimate for every matter disclosed below.

In July 2006, Morgan Keegan and a former Morgan Keegan analyst were named as defendants in a lawsuit filed by a Canadian insurance and financial services company and its American subsidiary in the Circuit Court of Morris County, New Jersey. Plaintiffs alleged civil claims under the RICO Act and claims for commercial disparagement, tortious interference with contractual relationships, tortious interference with prospective economic advantage and common law conspiracy. Plaintiffs allege that defendants engaged in a multi-year conspiracy to publish and disseminate false and defamatory information about plaintiffs to improperly drive down plaintiffs’ stock price, so that others could profit from short positions. Plaintiffs allege that defendants’ actions damaged their reputations and harmed their business relationships. Plaintiffs seek monetary damages for a number of categories of alleged damages, including lost insurance business, lost financings and increased financing costs, increased audit fees and directors and officers insurance premiums and lost acquisitions. In September 2012, the trial court dismissed the case with prejudice. Plaintiffs filed an appeal, and in April 2017, the appellate court affirmed the dismissal of the plaintiffs’ claims under the RICO Act. The appellate court reversed the trial court’s dismissal of the commercial disparagement and tortious interference claims and remanded those claims but limited the plaintiffs’ damages. Plaintiffs filed an appeal with the Supreme Court of New Jersey in May 2017, and in October 2017, that court denied the plaintiffs' petition and remanded the case to the trial court. A trial date has been set for early June 2018. This matter is subject to the indemnification agreement with Raymond James.

Regions is involved in formal and informal information-gathering requests, investigations, reviews, examinations and proceedings by various governmental regulatory agencies, law enforcement authorities and self-regulatory bodies regarding Regions’ business, Regions' business practices and policies, and the conduct of persons with whom Regions does business. Additional inquiries will arise from time to time. In connection with those inquiries, Regions receives document requests, subpoenas

45

and other requests for information. The inquiries, including those described below, could develop into administrative, civil or criminal proceedings or enforcement actions that could result in consequences that have a material effect on Regions' consolidated financial position, results of operations or cash flows as a whole. Such consequences could include adverse judgments, findings, settlements, penalties, fines, orders, injunctions, restitution, or alterations in our business practices, and could result in additional expenses and collateral costs, including reputational damage.    

Regions is cooperating with an investigation by the United States Attorney’s Office for the Eastern District of New York pertaining to Regions' banking relationship with a former customer and accounts maintained by related entities and individuals affiliated with the customer who may be involved in criminal activity, as well as related aspects of Regions' Anti-Money Laundering and Bank Secrecy Act compliance program.

While the final outcome of litigation and claims exposures or of any inquiries is inherently unpredictable, management is currently of the opinion that the outcome of pending and threatened litigation and inquiries will not have a material effect on Regions’ business, consolidated financial position, results of operations or cash flows as a whole. However, in the event of unexpected future developments, it is reasonably possible that an adverse outcome in any of the matters discussed above could be material to Regions’ business, consolidated financial position, results of operations or cash flows for any particular reporting period of occurrence.

GUARANTEES

INDEMNIFICATION OBLIGATION

As discussed in Note 2, on April 2, 2012 (“Closing Date”), Regions closed the sale of Morgan Keegan and related affiliates to Raymond James. In connection with the sale, Regions agreed to indemnify Raymond James for all legal matters related to pre-closing activities, including matters filed subsequent to the Closing Date that relate to actions that occurred prior to closing. Losses under the indemnification include legal and other expenses, such as costs for judgments, settlements and awards associated with the defense and resolution of the indemnified matters. The maximum potential amount of future payments that Regions could be required to make under the indemnification is indeterminable due to the indefinite term of some of the obligations. As of March 31, 2018, the carrying value and fair value of the indemnification obligation were immaterial.

FANNIE MAE DUS LOSS SHARE GUARANTEE

Regions is a DUS lender. The DUS program provides liquidity to the multi-family housing market. Regions services loans sold to Fannie Mae and is required to provide a loss share guarantee equal to one-third of the majority of its DUS servicing portfolio. At March 31, 2018 and December 31, 2017, the Company's DUS servicing portfolio totaled approximately $2.8 billion and $2.9 billion, respectively. Regions' maximum quantifiable contingent liability related to its loss share guarantee was approximately $915 million and $923 million at March 31, 2018 and December 31, 2017, respectively. The Company would be liable for this amount only if all of the loans it services for Fannie Mae, for which the Company retains some risk of loss, were to default and all of the collateral underlying these loans was determined to be without value at the time of settlement. Therefore, the maximum quantifiable contingent liability is not representative of the actual loss the Company would be expected to incur. The estimated fair value of the associated loss share guarantee recorded as a liability on the Company's consolidated balance sheets was approximately $4 million at both March 31, 2018 and December 31, 2017. Refer to Note 1 "Summary of Significant Accounting Policies" to the consolidated financial statements in the Annual Report on Form 10-K for the year ended December 31, 2017, for additional information.

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NOTE 14. REVENUE RECOGNITION

The Company records revenue when control of the promised products or services is transferred to the customer, in an amount that reflects the consideration Regions expects to be entitled to in exchange for those products or services. Refer to Note 1 “Summary of Significant Accounting Policies” to the consolidated financial statements to the Annual Report on Form 10-K for the year ended December 31, 2017, for descriptions of the accounting and reporting policies related to revenue recognition.

The following tables present total non-interest income disaggregated by major product category for each reportable segment for the period indicated.

	Three Months Ended March 31, 2018
	Corporate Bank		Consumer Bank		Wealth Management		Other Segment Revenue		Other(1)			Continuing Operations			Discontinued Operations
	(In millions)
Service charges on deposit accounts	$	37	$	131	$	1	$	1	$	1		$	171		$	—
Card and ATM fees	12		96		—		—		(4		)	104			—
Investment management and trust fee income	—		—		58		—		—			58			—
Capital markets fee income and other	18		—		—		—		32			50			—
Mortgage income	—		—		—		—		38			38			—
Bank-owned life insurance	—		—		—		—		17			17			—
Commercial credit fee income	—		—		—		—		17			17			—
Investment services fee income	—		—		17		—		—			17			—
Market value adjustments on employee benefit assets	—		—		—		—		(1		)	(1		)	—
Insurance commissions and fees	—		—		—		—		—			—			34
Other miscellaneous income	5		9		1		—		21			36			—
	$	72	$	236	$	77	$	1	$	121		$	507		$	34

	Three Months Ended March 31, 2017 (2)
	Corporate Bank		Consumer Bank		Wealth Management		Other Segment Revenue		Other(1)			Continuing Operations		Discontinued Operations
	(In millions)
Service charges on deposit accounts	$	36	$	127	$	1	$	2	$	2		$	168	$	—
Card and ATM fees	12		93		—		—		(1		)	104		—
Investment management and trust fee income	—		—		56		—		—			56		—
Capital markets fee income and other	9		—		—		—		23			32		—
Mortgage income	—		—		—		—		41			41		—
Bank-owned life insurance	—		—		—		—		19			19		—
Commercial credit fee income	—		—		—		—		18			18		—
Investment services fee income	—		—		16		—		—			16		—
Market value adjustments on employee benefit assets	—		—		—		—		5			5		—
Insurance commissions and fees	—		—		—		—		—			—		36
Other miscellaneous income	3		11		1		—		—			15		—
	$	60	$	231	$	74	$	2	$	107		$	474	$	36

________

(1) This revenue is not impacted by the new accounting guidance and continues to be recognized when earned in accordance with the Company's existing revenue recognition policy.

(2) Prior period amounts have not been adjusted under the modified retrospective method.

Regions elected the practical expedient related to contract costs and will continue to expense sales commissions and any related contract costs when incurred because the amortization period would have been one year or less.

Regions also elected the practical expedient related to remaining performance obligations and therefore did not disclose the value of unsatisfied performance obligations for 1) contracts with an original expected length of one year or less and 2) contracts for which revenue is recognized at the amount to which Regions has the right to invoice for services performed.

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NOTE 15. RECENT ACCOUNTING PRONOUNCEMENTS    

Standard	Description	Required Date of Adoption	Effect on Regions' financial statements or other significant matters
Standards Adopted (or partially adopted) in 2018
ASU 2014-09, Revenue from Contracts with Customers ASU 2015-14, Deferral of the Effective Date ASU 2016-08, Principal versus Agent Considerations ASU 2016-10, Identifying Performance Obligations and Licensing ASU 2016-12, Narrow-Scope Improvements and Practical Expedience ASU 2016-20, Technical Corrections and Improvements to Topic 606, Revenue from Contracts with Customers	This ASU supersedes the revenue recognition requirements in ASC Topic 605, Revenue Recognition, and most industry-specific guidance throughout the Industry topics of the Codification. The core principle of the ASU is that an entity should recognize revenue to depict the transfer of promised goods or services to customers in an amount that reflects the consideration to which the entity expects to be entitled in exchange for those goods or services. The ASU may be adopted either retrospectively or on a modified retrospective basis.	January 1, 2018	Regions adopted the new revenue recognition standard on January 1, 2018 using the modified retrospective method. The adoption of this guidance did not have a material impact to the financial statements. For the three months ended March 31, 2018, approximately $420 million of non-interest income is within the scope of the new revenue recognition standard and includes service charges on deposit accounts, card and ATM fees, investment management and trust fee income, capital markets fee income, investment services fee income and other components within non-interest income. Income streams that are out of scope of the new standard include interest income, mortgage income, securities gains (losses), bank-owned life insurance and certain other components within non-interest income. Regions also developed additional quantitative and qualitative disclosures required by the new revenue recognition standard. See Note 14.
ASU 2016-01, Recognition and Measurement of Financial Assets and Liabilities ASU 2018-03, Technical Corrections and Improvements to Financial Instruments ASU 2018-04, Debt Securities and Regulated Operations	This ASU amends ASC Topic 825, Financial Instruments-Overall, and addresses certain aspects of recognition, measurement, presentation, and disclosure of financial instruments. Among other minor amendments applicable to Regions, the main provisions require investments in equity securities to be measured at fair value with changes in fair value recognized through net income unless they qualify for a practicability exception (excludes investments accounted for under the equity method of accounting or those that result in consolidation of the investee). Except for disclosure requirements that have been adopted prospectively, the ASU must be adopted on a modified retrospective basis.	January 1, 2018	The adoption of this guidance resulted in trading account assets and equity securities available for sale being reclassified to other earning assets. The adoption of this guidance did not have a material impact. See Note 3.
ASU 2016-15, Classification of Certain Cash Receipts and Cash Payments	This ASU amends Topic 230, Statement of Cash Flows, and provides clarification with respect to classification within the statement of cash flows where current guidance is unclear or silent. The ASU must be adopted retrospectively.	January 1, 2018	The adoption of this guidance did not have a material impact.
ASU 2017-01, Clarifying the Definition of a Business	This ASU amends Topic 805, Business Combinations, and provides additional accounting guidance to better determine when a set of assets and activities is a business. The ASU must be adopted prospectively.	January 1, 2018	The adoption of this guidance did not have a material impact.
ASU 2017-05, Other Income- Gains and Losses from the Derecognition of Nonfinancial Assets	This ASU amends Subtopic 610-20, Other Income - Gains and Losses from the Derecognition of Nonfinancial Assets, to clarify the scope and to add guidance for partial sales of nonfinancial assets. The new standard adds a definition for in-substance nonfinancial assets and clarifies that nonfinancial assets within a legal entity are within the scope of ASC 606. This ASU may be adopted either retrospectively or on a modified retrospective basis.	January 1, 2018	Regions adopted the guidance using the modified retrospective method. The adoption of this guidance did not have a material impact.

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Standard	Description	Required Date of Adoption	Effect on Regions' financial statements or other significant matters
Standards Adopted (or partially adopted) in 2018 (continued)
ASU 2017-07, Compensation- Retirement Benefits	This ASU amends Topic 715, Retirement Benefits, and provides more prescriptive guidance around the presentation of net periodic pension and postretirement benefit cost in the income statement. The amendment requires that the service cost component be disaggregated from other components of net periodic benefit cost in the income statement. The ASU must be adopted retrospectively.	January 1, 2018	For the first quarter of 2018, Regions recorded the service cost component of net periodic pension and postretirement benefit cost in salaries and employee benefits in the income statement. The other components of net periodic pension and postretirement benefit cost were recorded in other non-interest expense. The first quarter of 2017 has been revised to conform to this presentation. The adoption of this guidance did not have a material impact. See Note 9.
ASU 2017-09, Stock Compensation: Scope of Modification Accounting	This ASU amends Topic 718, Compensation- Stock Compensation, and clarifies when modification accounting should be applied to changes in terms or conditions of share-based payment awards. The amendments narrow the scope of modification accounting by clarifying that modification accounting should be applied to awards if the change affects the fair value, vesting conditions, or classification of the award. The amendments do not impact current disclosure requirements for modifications, regardless of whether modification accounting is required under the new guidance. The ASU must be adopted prospectively to modifications that occur on or after the adoption date.	January 1, 2018	The adoption of this guidance did not have a material impact.
ASU 2017-12, Targeted Improvements to Accounting for Hedging Activities	This ASU amends ASC 815, Derivatives and Hedging to (1) improve the transparency and understandability of information conveyed to financial statement users about an entity’s risk management activities by better aligning the entity’s financial reporting for hedging relationships with those risk management activities and (2) reduce the complexity of and simplify the application of hedge accounting by preparers. Except for disclosure requirements that have been adopted prospectively, the ASU must be adopted on a modified retrospective basis.	January 1, 2019. Early adoption is permitted.	Regions elected to adopt this ASU for financial reporting as of January 1, 2018. The adoption of this guidance did not have a material impact. See Note 10.
ASU 2018-05, Income Taxes	This ASU amends SEC guidance in the Codification related to income taxes to reflect the guidance in SEC Staff Accounting Bulletin 118, which provides guidance for companies that are not able to complete their accounting for the income tax effects of the Tax Cuts and Jobs Act in the period of enactment. The staff believes that to the extent a company can reasonably estimate the impact of the Tax Cuts and Job Act, such items should be reported in the first reporting period in which the Company is able to determine the reasonable estimate.	Adopted upon issuance.	Regions does not expect this guidance to have a material impact.

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Standard	Description	Required Date of Adoption	Effect on Regions' financial statements or other significant matters
Standards Not Yet Adopted
ASU 2016-02, Leases ASU 2018-01, Land Easement Practical Expedient for Transition to Topic 842	This ASU creates ASC Topic 842, Leases, and supersedes Topic 840,Leases. The new guidance requires lessees to record a right-of-use asset and a corresponding liability equal to the present value of future rental payments on their balance sheets for all leases with a term greater than one year. There are not significant changes to lessor accounting; however, there were certain improvements made to align lessor accounting with the lessee accounting model and Topic 606, Revenue from Contracts with Customers. This guidance expands both quantitative and qualitative required disclosures. This ASU should be adopted on a modified retrospective basis.	January 1, 2019 Early adoption is permitted.	This ASU supersedes the lease accounting requirements in ASC Topic 840, Leases. Regions has established a leasing standard implementation team comprised of the Corporate Controller’s group, Corporate Real Estate and other business and finance management to plan and execute the adoption of the new leasing standard.  The implementation team has substantially completed the identification of Regions’ leases that will need to be measured and reported as a right-of-use asset and corresponding liability for future rental payments. The implementation team is currently working with a lease administration vendor to set up and test the accounting for the lease contracts on the lease administration system. Based on preliminary estimates that are subject to change, Regions has a range of approximately $400-$600 million of future lease obligations that would be measured and recognized when the new guidance is adopted (refer to Note 24 to consolidated financial statements included in the Annual Report on Form 10-K for the year ended December 31, 2017). While this amount represents a large majority of the leases that are within the scope of the new leasing standard, the implementation team will continue reviewing service contracts up through the effective date and may identify additional leases embedded in those arrangements that will be within the scope of the new standard. Between now and January 1, 2019, Regions will likely have changes to the lease portfolio as the Company continues to evaluate and execute branch and occupancy optimization initiatives. In addition to final determination of the lease portfolio at the effective date, the initial measurement of the right-of-use asset and the corresponding liability will be affected by certain key assumptions such as expectations of renewals or extensions and the interest rate to be used to discount the future lease obligations. Up through the date of adoption, the evaluation of the impact of the standard will be adjusted based on new leases that are executed, leases that are terminated prior to the effective date, and any leases with changes to key assumptions or expectations such as renewals and extensions, and discount rates. While there will be some changes to income statement classification, the implementation team does not expect the adoption of the standard to have a material impact to pre-tax income. Regions does not anticipate early adoption of the new standard.
ASU 2016-13, Measurement of Credit Losses on Financial Instruments	This ASU amends Topic 326, Financial Instruments- Credit Losses to replace the current incurred loss accounting model with a current expected credit loss approach (CECL) for financial instruments measured at amortized cost and other commitments to extend credit. The amendments require entities to consider all available relevant information when estimating current expected credit losses, including details about past events, current conditions, and reasonable and supportable forecasts. The resulting allowance for credit losses is to reflect the portion of the amortized cost basis that the entity does not expect to collect. The amendments also eliminate the current accounting model for purchased credit impaired loans and debt securities. Additional quantitative and qualitative disclosures are required upon adoption. While the CECL model does not apply to available for sale debt securities, the ASU does require entities to record an allowance when recognizing credit losses for available for sale securities, rather than reduce the amortized cost of the securities by direct write-offs. The ASU should be adopted on a modified retrospective basis. Entities that have loans accounted for under ASC 310-30 at the time of adoption should prospectively apply the guidance in this amendment for purchase credit deteriorated assets.	January 1, 2020 Early adoption permitted beginning January 1, 2019.	Regions’ cross-functional implementation team, which is co-led by Finance and Risk Management, has developed a project plan that results in the adoption of the standard in the first quarter of 2020. Key project implementation activities for 2018 will focus on model enhancements, execution and implementation, continued challenge of model outputs, processes and controls, policies, disclosures, and data resolution. Regions expects adoption of the standard will result in an overall increase in the allowance for credit losses given the change from accounting for losses inherent in the loan portfolio to accounting for losses over the remaining contractual life of the portfolio. Based on initial modeling, loan portfolios expected to generate the majority of the increase include longer-dated loans such as residential first mortgages and home equity lending products. Additionally, there could be decreases in the allowance in certain of our loan portfolios at adoption. Regions expects no material allowance on held to maturity securities since the majority of this portfolio consists of agency-backed securities that inherently have an immaterial risk of loss. Additionally, Regions expects no material allowance impact to available for sale securities. The amount of the change in these allowances will be impacted by the portfolios’ composition and quality at the adoption date as well as economic conditions and forecasts at that time. Regions does not anticipate early adoption of the new standard.

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Standard	Description	Required Date of Adoption	Effect on Regions' financial statements or other significant matters
Standards Not Yet Adopted
ASU 2017-04, Simplifying the Test for Goodwill Impairment	This ASU amends Topic 350, Intangibles-Goodwill and Other, and eliminates Step 2 from the goodwill impairment test.	January 1, 2020 Early adoption is permitted.	Regions believes the adoption of this guidance will not have a material impact. Regions does not plan to early adopt.
ASU 2017-08, Receivables- Nonrefundable Fees and Other Costs	This ASU amends Subtopic 310-20, Receivables-Nonrefundable Fees and Other Costs, to shorten the amortization period for certain purchased callable debt securities held at a premium to the earliest call date. Current guidance generally requires entities to amortize a premium as a yield adjustment over the contractual life of the instrument. Shortening the amortization period is generally expected to more closely align the recognition of interest income with expectations incorporated into the pricing of the underlying securities. The amendments do not affect the accounting treatment of discounts. This ASU should be adopted on a modified retrospective basis.	January 1, 2019 Early adoption permitted, including in an interim period.	Regions is evaluating the impact upon adoption; however, the impact is not expected to be material.

NOTE 16. SUBSEQUENT EVENT

On April 4, 2018, Regions entered into a stock purchase agreement to sell Regions Insurance Group, Inc. and related affiliates to BB&T Insurance Holdings, Inc. The transaction is expected to generate an after-tax gain of approximately $200 millionand Common Equity Tier 1 capital of approximately $300 million at closing. The transaction has been authorized by the Board of Directors of the Company and the Board of Directors of BB&T Insurance Holdings, Inc., and is anticipated to close in the third quarter of 2018, subject to regulatory approval and customary closing conditions.

The transaction purchase price is not subject to any adjustment that would have a material impact to the consolidated financial statements.

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Item 2. Management’s Discussion and Analysis of Financial Condition and Results of Operations

INTRODUCTION

The following discussion and analysis is part of Regions Financial Corporation’s (“Regions” or the “Company”) Quarterly Report on Form 10-Q filed with the SEC and updates Regions’ Annual Report on Form 10-K for the year ended December 31, 2017, which was previously filed with the SEC. This financial information is presented to aid in understanding Regions’ financial position and results of operations and should be read together with the financial information contained in the Form 10-K. Effective January 1, 2018, the Company adopted new accounting guidance and certain prior period amounts presented in this discussion and analysis have been reclassified to conform to current period classifications. See Note 1 "Basis of Presentation" and Note 15 "Recent Accounting Pronouncements" to the consolidated financial statements for further detail. The emphasis of this discussion will be on the three months ended March 31, 2018 compared to the three months ended March 31, 2017 for the consolidated statements of income. For the consolidated balance sheets, the emphasis of this discussion will be the balances as of March 31, 2018 compared to December 31, 2017.

This discussion and analysis contains statements that may be considered “forward-looking statements” as defined in the Private Securities Litigation Reform Act of 1995. See pages 5 through 7 for additional information regarding forward-looking statements.

CORPORATE PROFILE

Regions is a financial holding company headquartered in Birmingham, Alabama, that operates in the South, Midwest and Texas. Regions provides traditional commercial, retail and mortgage banking services, as well as other financial services in the fields of asset management, wealth management, securities brokerage, trust services, merger and acquisition advisory services and other specialty financing.

Regions conducts its banking operations through Regions Bank, an Alabama state-chartered commercial bank that is a member of the Federal Reserve System. At March 31, 2018, Regions operated 1,473 total branch outlets across the South, Midwest and Texas. Regions operates under three reportable business segments: Corporate Bank, Consumer Bank, and Wealth Management with the remainder split between Discontinued Operations and Other. See Note 12 “Business Segment Information” to the consolidated financial statements for more information regarding Regions’ segment reporting structure.

On April 4, 2018, Regions entered into a stock purchase agreement to sell Regions Insurance Group, Inc. and related affiliates to BB&T Insurance Holdings, Inc. The transaction is expected to close in the third quarter of 2018, subject to regulatory approvals and customary closing conditions. On January 11, 2012, Regions entered into a stock purchase agreement to sell Morgan Keegan and related affiliates to Raymond James. The sale closed on April 2, 2012. Regions Investment Management, Inc. and Regions Trust were not included in the sale; they are included in the Wealth Management segment. See Note 2 “Discontinued Operations” to the consolidated financial statements for further discussion.

Regions’ profitability, like that of many other financial institutions, is dependent on its ability to generate revenue from net interest income and other financing income as well as non-interest income sources. Net interest income and other financing income is primarily the difference between the interest income Regions receives on interest-earning assets, such as loans and securities, and the interest expense Regions pays on interest-bearing liabilities, principally deposits and borrowings. Regions’ net interest income and other financing income is impacted by the size and mix of its balance sheet components and the interest rate spread between interest earned on its assets and interest paid on its liabilities. Net interest income and other financing income also includes rental income and depreciation expense associated with operating leases for which Regions is the lessor. Non-interest income includes fees from service charges on deposit accounts, card and ATM fees, mortgage servicing and secondary marketing, investment management and trust activities, capital markets and other customer services which Regions provides. Results of operations are also affected by the provision for loan losses and non-interest expenses such as salaries and employee benefits, occupancy, professional, legal and regulatory expenses, FDIC insurance assessments, and other operating expenses, as well as income taxes.

Economic conditions, competition, new legislation and related rules impacting regulation of the financial services industry and the monetary and fiscal policies of the Federal government significantly affect most, if not all, financial institutions, including Regions. Lending and deposit activities and fee income generation are influenced by levels of business spending and investment, consumer income, consumer spending and savings, capital market activities, and competition among financial institutions, as well as customer preferences, interest rate conditions and prevailing market rates on competing products in Regions’ market areas.

Regions’ business strategy has been and continues to be focused on providing a competitive mix of products and services, delivering quality customer service and maintaining a branch distribution network with offices in convenient locations.

FIRST QUARTER OVERVIEW

Regions reported net income available to common shareholders of $398 million, or $0.35 per diluted share, in the first quarter of 2018 compared to $285 million, or $0.23 per diluted share, in the first quarter of 2017. Net income available to common shareholders from continuing operations was $398 million, or $0.35 per diluted share, compared to $277 million, or $0.23 per diluted share, over these same periods. The primary drivers of the increases in results from the prior year period were increased net interest income and other financing income and decreased provision for loan losses.

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For the first quarter of 2018, net interest income and other financing income (taxable-equivalent basis) totaled $922 million, up $41 million compared to the first quarter of 2017. The net interest margin (taxable-equivalent basis) was 3.46 percent for the first quarter of 2018 and 3.25 percent in the first quarter of 2017. Net interest margin (taxable-equivalent basis) benefited from higher market interest rates, partially offset by increases in funding costs associated with bank debt issued early in the first quarter of 2018 and lower average loan balances.

The provision (credit) for loan losses totaled $(10) million in the first quarter of 2018 compared to $70 million during the first quarter of 2017. The decrease from the prior period was the result of several factors, including broad-based improvements in credit metrics, payoffs and paydowns of criticized loans, and a net benefit from the sale of $254 million in residential first mortgage loans consisting primarily of performing troubled debt restructured loans. Additionally, the (credit) for loan losses was impacted because the Company reduced its hurricane-specific allowance by $30 million during the current quarter. See the "Provision (Credit) for Loan Losses" section later in the Management’s Discussion and Analysis for related discussion.

Net charge-offs totaled $84 million, or an annualized 0.42 percent of average loans, in the first quarter of 2018, compared to $100 million, or an annualized 0.51 percent for the first quarter of 2017. See Note 4 "Loans and the Allowance for Credit Losses" to the consolidated financial statements for additional information.

The allowance for loan losses at March 31, 2018, was 1.05 percent of total loans, net of unearned income, compared to 1.17 percent at December 31, 2017. Total non-performing loans decreased to 0.75 percent of total loans, net of unearned income, at March 31, 2018, compared to 0.81 percent at December 31, 2017.

Non-interest income from continuing operations was $507 million for the first quarter of 2018 compared to $474 million for the first quarter of 2017. The increase was primarily driven by growth in capital markets fee income and other, service charges on deposit accounts and other miscellaneous non-interest income. See Table 20 "Non-Interest Income from Continuing Operations" for more detail.

Total non-interest expense from continuing operations was $884 million in the first quarter of 2018, a $41 million increase from the first quarter of 2017. The increase was primarily driven by higher salaries and employee benefits, outside services and professional fees. See Table 21 "Non-Interest Expense from Continuing Operations" for more detail.

Income tax expense from continuing operations for the three months ended March 31, 2018 was $128 million compared to income tax expense of $127 million for the same period in 2017. See "Income Taxes" toward the end of the Management’s Discussion and Analysis section of this report for more detail.

Subsequent to the end of the quarter, on April 4, 2018, Regions entered into a stock purchase agreement to sell Regions Insurance Group, Inc. and related affiliates to BB&T Insurance Holdings, Inc. The transaction is expected to close in the third quarter, subject to regulatory approvals and customary closing conditions. A discussion of activity within discontinued operations is included at the end of the Management’s Discussion and Analysis section of this report. See Note 2 "Discontinued Operations" to the consolidated financial statements for additional information.

2018 Expectations

Management expectations for 2018 are noted below:

• Full year adjusted average loan growth in the low single digits compared to 2017 adjusted average balances

• Full year average deposit growth in the low single digits compared to 2017 average balances, excluding brokered and Wealth Institutional Services deposits

• Adjusted net interest income and other financing income (non-taxable equivalent basis) growth of 4 to 6 percent; revised from the previous guidance of 3 to 5 percent

• Adjusted non-interest income growth of 3 to 6 percent

• Adjusted non-interest expenses relatively stable

• Adjusted efficiency ratio less than 60 percent

• Positive adjusted operating leverage of approximately 3 to 5 percent

• Effective income tax rate in the 20 to 22 percent range

• Full year net charge-offs of 35 to 50 basis points; based on recent trends and current market conditions, currently expect to be at the lower end of the range

The reconciliation with respect to these forward-looking non-GAAP measures is expected to be consistent with the actual non-GAAP reconciliations within Management's Discussion and Analysis of this Form 10-Q. For more information related to the Company's 2018 expectations, including additional guidance within the ranges disclosed above, refer to the related sub-sections discussed in more detail within Management's Discussion and Analysis of this Form 10-Q.

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BALANCE SHEET ANALYSIS

CASH AND CASH EQUIVALENTS

Cash and cash equivalents decreased approximately $796 million from year-end 2017 to March 31, 2018. This decrease was due primarily to a decrease in interest-bearing deposits in other banks as a result of normal day-to-day operating variations.

DEBT SECURITIES

The following table details the carrying values of debt securities, including both available for sale and held to maturity:

Table 1— Debt Securities

	March 31, 2018		December 31, 2017
	(In millions)
U.S. Treasury securities	$	327	$	331
Federal agency securities	42		28
Mortgage-backed securities:
Residential agency	18,124		18,442
Residential non-agency	2		3
Commercial agency	4,300		4,361
Commercial non-agency	766		788
Corporate and other debt securities	1,135		1,108
	$	24,696	$	25,061

Regions maintains a highly rated securities portfolio consisting primarily of agency mortgage-backed securities. Total securities at March 31, 2018 decreased slightly from year-end 2017. See Note 3 "Securities" to the consolidated financial statements for additional information.

Debt securities available for sale, which constitute the majority of the securities portfolio, are an important tool used to manage interest rate sensitivity and provide a primary source of liquidity for the Company. See the "Market Risk-Interest Rate Risk" and "Liquidity Risk" sections for more information.

LOANS HELD FOR SALE

Loans held for sale totaled $452 million at March 31, 2018, consisting of $286 million of residential real estate mortgage loans, $158 million of commercial mortgage and other loans, and $8 million of non-performing loans. At December 31, 2017, loans held for sale totaled $348 million, consisting of $325 million of residential real estate mortgage loans, $6 million of commercial mortgage and other loans, and $17 million of non-performing loans. The level of residential real estate mortgage loans held for sale that are part of the Company's mortgage originations to be sold in the secondary market fluctuates depending on the timing of origination and sale to third parties. The level of commercial mortgage loans held for sale also fluctuates depending on timing.

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LOANS

Loans, net of unearned income, represented approximately 74 percent of Regions’ interest-earning assets at March 31, 2018. The following table presents the distribution of Regions’ loan portfolio by portfolio segment and class, net of unearned income:

Table 2—Loan Portfolio

	March 31, 2018		December 31, 2017
	(In millions, net of unearned income)
Commercial and industrial	$	36,787	$	36,115
Commercial real estate mortgage—owner-occupied	6,044		6,193
Commercial real estate construction—owner-occupied	306		332
Total commercial	43,137		42,640
Commercial investor real estate mortgage	3,742		4,062
Commercial investor real estate construction	1,845		1,772
Total investor real estate	5,587		5,834
Residential first mortgage	13,892		14,061
Home equity	9,916		10,164
Indirect—vehicles	3,310		3,326
Indirect—other consumer	1,611		1,467
Consumer credit card	1,237		1,290
Other consumer	1,132		1,165
Total consumer	31,098		31,473
	$	79,822	$	79,947

PORTFOLIO CHARACTERISTICS

The following sections describe the composition of the portfolio segments and classes disclosed in Table 2, explain changes in balances from 2017 year-end, and highlight the related risk characteristics. Regions believes that its loan portfolio is well diversified by product, client, and geography throughout its footprint. However, the loan portfolio may be exposed to certain concentrations of credit risk which exist in relation to individual borrowers or groups of borrowers, certain types of collateral, certain types of industries, certain loan products, or certain regions of the country. See Note 4 “Loans and the Allowance for Credit Losses” to the consolidated financial statements for additional discussion.

Commercial

The commercial portfolio segment includes commercial and industrial loans to commercial customers for use in normal business operations to finance working capital needs, equipment purchases and other expansion projects. Commercial and industrial loans increased$672 million since year-end 2017 driven primarily by new relationships and expansion of existing relationships in government and institutional banking, energy and natural resources, and technology and defense, which offset the impact of large corporate customers utilizing the fixed income market to pay down and pay off bank debt. Commercial also includes owner-occupied commercial real estate mortgage loans to operating businesses, which are loans for long-term financing of land and buildings, and are repaid by cash flows generated by business operations. These loans declined$149 million from year-end 2017, reflecting a slowing pace of decline. Owner-occupied commercial real estate construction loans are made to commercial businesses for the development of land or construction of a building where the repayment is derived from revenues generated from the business of the borrower.

Over half of the Company’s total loans are included in the commercial portfolio segment. These balances are spread across numerous industries, as noted in the table below. The Company manages the related risks to this portfolio by setting certain lending limits for each significant industry.

The following tables provide detail of Regions' commercial lending balances in selected industries.

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Table 3—Selected Industry Exposure

	March 31, 2018
	Loans		Unfunded Commitments		Total Exposure
	(In millions)
Administrative, support, waste and repair	$	1,047	$	666	$	1,713
Agriculture	470		236		706
Educational services	2,371		381		2,752
Energy	1,817		1,862		3,679
Financial services	3,548		3,422		6,970
Government and public sector	2,751		535		3,286
Healthcare	4,191		1,535		5,726
Information	1,262		837		2,099
Manufacturing	4,415		3,685		8,100
Professional, scientific and technical services	1,718		1,278		2,996
Real estate	6,452		6,020		12,472
Religious, leisure, personal and non-profit services	1,778		724		2,502
Restaurant, accommodation and lodging	2,185		609		2,794
Retail trade	2,465		2,038		4,503
Transportation and warehousing	1,832		953		2,785
Utilities	1,393		2,124		3,517
Wholesale goods	3,406		2,094		5,500
Other (1)	36		1,978		2,014
Total commercial	$	43,137	$	30,977	$	74,114

	December 31, 2017 (2)
	Loans			Unfunded Commitments		Total Exposure
	(In millions)
Administrative, support, waste and repair	$	976		$	620	$	1,596
Agriculture	525			247		772
Educational services	2,353			378		2,731
Energy	1,767			1,877		3,644
Financial services	3,615			3,336		6,951
Government and public sector	2,785			394		3,179
Healthcare	4,216			1,586		5,802
Information	1,294			813		2,107
Manufacturing	4,181			3,785		7,966
Professional, scientific and technical services	1,764			1,266		3,030
Real estate	6,315			5,772		12,087
Religious, leisure, personal and non-profit services	1,841			726		2,567
Restaurant, accommodation and lodging	2,224			642		2,866
Retail trade	2,336			2,294		4,630
Transportation and warehousing	1,815			863		2,678
Utilities	1,557			2,114		3,671
Wholesale goods	3,148			2,267		5,415
Other (1)	(72		)	1,604		1,532
Total commercial	$	42,640		$	30,584	$	73,224

________

(1) "Other" contains balances related to non-classifiable and invalid business industry codes offset by payments in process and fee accounts that are not available at the loan level.

(2) As customers' businesses evolve (e.g. up or down the vertical manufacturing chain), Regions may need to change the assigned business industry code used to define the customer relationship. When these changes occur, Regions does not recast the customer history for prior periods into the new classification because the business industry code used in the prior period was deemed appropriate. As a result, comparable period changes may be impacted.

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Investor Real Estate

Loans for real estate development are repaid through cash flows related to the operation, sale or refinance of the property. This portfolio segment includes extensions of credit to real estate developers or investors where repayment is dependent on the sale of real estate or income generated from the real estate collateral. A portion of Regions’ investor real estate portfolio segment consists of loans secured by residential product types (land, single-family and condominium loans) within Regions’ markets. Additionally, this category includes loans made to finance income-producing properties such as apartment buildings, office and industrial buildings, and retail shopping centers. Total investor real estate loans decreased$247 million in comparison to 2017 year-end balances. Due to the nature of the cash flows typically used to repay investor real estate loans, these loans are particularly vulnerable to weak economic conditions.

Residential First Mortgage

Residential first mortgage loans represent loans to consumers to finance a residence. These loans are typically financed over a 15 to 30 year term and, in most cases, are extended to borrowers to finance their primary residence. These loans experienced a $169 milliondecline in comparison to 2017 year-end balances primarily due to the first quarter 2018 sale of $254 million of primarily performing troubled debt restructured loans as well as certain non-restructured interest-only loans. Approximately $625 million in new loan originations were retained on the balance sheet through the first three months of 2018.

Home Equity

Home equity lending includes both home equity loans and lines of credit. This type of lending, which is secured by a first or second mortgage on the borrower's residence, allows customers to borrow against the equity in their homes. The home equity portfolio totaled $9.9 billion at March 31, 2018 as compared to $10.2 billion at December 31, 2017. Substantially all of this portfolio was originated through Regions’ branch network.

The following table presents information regarding the future principal payment reset dates for the Company's home equity lines of credit as of March 31, 2018. The balances presented are based on maturity date for lines with a balloon payment and draw period expiration date for lines that convert to a repayment period.

Table 4—Home Equity Lines of Credit - Future Principal Payment Resets

	First Lien		% of Total		Second Lien		% of Total		Total
	(Dollars in millions)
2018	$	10	0.15	%	$	15	0.24	%	$	25
2019	60		0.94		51		0.81		111
2020	123		1.94		98		1.54		221
2021	147		2.31		130		2.04		277
2022	160		2.53		149		2.34		309
2023-2027	2,047		32.21		2,092		32.92		4,139
2028-2032	733		11.53		538		8.47		1,271
Thereafter	1		0.01		1		0.02		2
Total	$	3,281	51.62	%	$	3,074	48.38	%	$	6,355

Of the $9.9 billion home equity portfolio at March 31, 2018, approximately $6.3 billion were home equity lines of credit and $3.6 billion were closed-end home equity loans (primarily originated as amortizing loans). Beginning in December 2016, new home equity lines of credit have a 10-year draw period and a 20-year repayment term. During the 10-year draw period customers do not have an interest-only payment option, except on a very limited basis. From May 2009 to December 2016, home equity lines of credit had a 10-year draw period and a 10-year repayment period. Prior to May 2009, home equity lines of credit had a 20-year term with a balloon payment upon maturity or a 5-year draw period with a balloon payment upon maturity. The term “balloon payment” means there are no principal payments required until the balloon payment is due for interest-only lines of credit.

Other Consumer Credit Quality Data

The Company calculates an estimate of the current value of property secured as collateral for both residential first mortgage and home equity lending products (“current LTV”). The estimate is based on home price indices compiled by a third party. The third party data indicates trends for MSAs. Regions uses the third party valuation trends from the MSAs in the Company's footprint in its estimate. The trend data is applied to the loan portfolios, taking into account the age of the most recent valuation and geographic area.

The following table presents current LTV data for components of the residential first mortgage and home equity classes of the consumer portfolio segment. Current LTV data for the remaining loans in the portfolio is not available, primarily because some of the loans are serviced by others. Data may also not be available due to mergers and systems integrations. The amounts in the

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table represent the entire loan balance. For purposes of the table below, if the loan balance exceeds the current estimated collateral, the entire balance is included in the “Above 100%” category, regardless of the amount of collateral available to partially offset the shortfall. The balances in the “Above 100%” category as a percentage of the portfolio balances were less than 1 percent in the residential first mortgage portfolio and 1 percent in the home equity portfolio at March 31, 2018.

Table 5—Estimated Current Loan to Value Ranges

	March 31, 2018						December 31, 2017
	Residential First Mortgage		Home Equity				Residential First Mortgage		Home Equity
			1st Lien		2nd Lien				1st Lien		2nd Lien
	(In millions)
Estimated current LTV:
Above 100%	$	104	$	44	$	98	$	123	$	49	$	117
80% - 100%	1,689		254		463		1,711		275		485
Below 80%	11,551		6,151		2,697		11,639		6,257		2,766
Data not available	548		79		130		588		85		130
	$	13,892	$	6,528	$	3,388	$	14,061	$	6,666	$	3,498

Indirect—Vehicles

Indirect-vehicles lending, which is lending initiated through third-party business partners, largely consists of loans made through automotive dealerships. This portfolio class decreased$16 million from year-end 2017, primarily because Regions terminated a third-party purchase arrangement during the fourth quarter of 2016. The balance is expected to continue to decrease during 2018.

Indirect—Other Consumer

Indirect-other consumer lending represents other point of sale lending through third parties. This portfolio class increased $144 million from year-end 2017 primarily due to continued growth in point of sale initiatives.

Consumer Credit Card

Consumer credit card lending represents primarily open-ended variable interest rate consumer credit card loans. These balances decreased$53 million from year-end 2017.

Other Consumer

Other consumer loans primarily include direct consumer loans, overdrafts and other revolving loans. Other consumer loans decreased$33 million from year-end 2017.

Regions qualitatively considers factors such as periodic updates of FICO scores, unemployment, home prices, and geography as credit quality indicators for consumer loans. FICO scores are obtained at origination and refreshed FICO scores are obtained by the Company quarterly for all consumer loans. The following tables present estimated current FICO score data for components of classes of the consumer portfolio segment. Current FICO data is not available for the remaining loans in the portfolio for various reasons; for example, if customers do not use sufficient credit, an updated score may not be available. Residential first mortgage and home equity balances with FICO scores below 620 were 5 percent of the combined portfolios for both March 31, 2018 and December 31, 2017.

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Table 6—Estimated Current FICO Score Ranges

	March 31, 2018
	Residential First Mortgage		Home Equity				Indirect—Vehicles		Indirect—Other Consumer		Consumer Credit Card		Other Consumer
			1st Lien		2nd Lien
	(In millions)
Below 620	$	674	$	257	$	168	$	325	$	48	$	93	$	73
620-680	788		493		292		392		173		221		145
681-720	1,286		755		414		413		294		279		217
Above 720	10,497		4,883		2,457		2,093		945		636		645
Data not available	647		140		57		87		151		8		52
	$	13,892	$	6,528	$	3,388	$	3,310	$	1,611	$	1,237	$	1,132

	December 31, 2017
	Residential First Mortgage		Home Equity				Indirect—Vehicles		Indirect—Other Consumer		Consumer Credit Card		Other Consumer
			1st Lien		2nd Lien
	(In millions)
Below 620	$	741	$	261	$	161	$	328	$	43	$	85	$	72
620-680	829		492		300		396		153		220		146
681-720	1,353		775		435		419		246		288		227
Above 720	10,344		5,000		2,546		2,088		765		689		656
Data not available	794		138		56		95		260		8		64
	$	14,061	$	6,666	$	3,498	$	3,326	$	1,467	$	1,290	$	1,165

ALLOWANCE FOR CREDIT LOSSES

The allowance for credit losses (“allowance”) consists of two components: the allowance for loan losses and the reserve for unfunded credit commitments. Discussion of the methodology used to calculate the allowance is included in Note 1 “Summary of Significant Accounting Policies” and Note 6 “Allowance for Credit Losses” to the consolidated financial statements in the Annual Report on Form 10-K for the year ended December 31, 2017, as well as related discussion in Management’s Discussion and Analysis.

The allowance for loan losses totaled $840 million at March 31, 2018 as compared to $934 million at December 31, 2017. The allowance for loan losses as a percentage of net loans decreased from 1.17 percent at December 31, 2017 to 1.05 percent at March 31, 2018. The decrease in percentage is attributable to reductions in non-performing, criticized and troubled debt restructured loans, as well as total delinquencies.

During the first three months of 2018, the provision (credit) for loan losses was less than net charge-offs by approximately $94 million, as a result of broad-based improvements in credit metrics, as well as payoffs and paydowns of criticized loans. Additionally, lower than anticipated losses associated with certain 2017 hurricanes resulted in a $30 million reduction to the Company's hurricane-specific loan loss allowance. Lastly, a $16 million net reduction to the provision (credit) for loan losses from the first quarter of 2018 sale of $254 million in residential first mortgage loans consisting primarily of performing troubled debt restructured loans also contributed to the results.

Management expects that net loan charge-offs will be in the 0.35 percent to 0.50 percent range for the 2018 year; based on recent trends and current market conditions, Regions currently expects to be at the lower end of that range. Economic trends such as interest rates, unemployment, volatility in commodity prices, and collateral valuations will impact the future levels of net charge-offs and may result in volatility of certain credit metrics during the remainder of 2018. Additionally, changes in circumstances related to individually large credits or certain portfolios may result in volatility.

Details regarding the allowance and net charge-offs, including an analysis of activity from the previous year’s totals, are included in Table 7 “Allowance for Credit Losses.”

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Table 7—Allowance for Credit Losses

	Three Months Ended March 31
	2018			2017
	(Dollars in millions)
Allowance for loan losses at beginning of year	$	934		$	1,091
Loans charged-off:
Commercial and industrial	25			47
Commercial real estate mortgage—owner-occupied	5			11
Commercial investor real estate mortgage	8			1
Residential first mortgage	8			3
Home equity	6			9
Indirect—vehicles	12			15
Indirect—other consumer	12			6
Consumer credit card	16			13
Other consumer	20			19
	112			124
Recoveries of loans previously charged-off:
Commercial and industrial	8			5
Commercial real estate mortgage—owner-occupied	2			1
Commercial investor real estate mortgage	2			2
Residential first mortgage	1			1
Home equity	4			5
Indirect—vehicles	5			5
Indirect—other consumer	—			—
Consumer credit card	2			1
Other consumer	4			4
	28			24
Net charge-offs:
Commercial and industrial	17			42
Commercial real estate mortgage—owner-occupied	3			10
Commercial investor real estate mortgage	6			(1		)
Residential first mortgage	7			2
Home equity	2			4
Indirect—vehicles	7			10
Indirect—other consumer	12			6
Consumer credit card	14			12
Other consumer	16			15
	84			100
Provision (credit) for loan losses	(10		)	70
Allowance for loan losses at March 31	$	840		$	1,061
Reserve for unfunded credit commitments at beginning of year	$	53		$	69
Provision (credit) for unfunded credit losses	(4		)	1
Reserve for unfunded credit commitments at March 31	$	49		$	70
Allowance for credit losses at March 31	$	889		$	1,131
Loans, net of unearned income, outstanding at end of period	$	79,822		$	79,869
Average loans, net of unearned income, outstanding for the period	$	79,891		$	80,178
Ratios:
Allowance for loan losses at end of period to loans, net of unearned income	1.05		%	1.33		%
Allowance for loan losses at end of period to non-performing loans, excluding loans held for sale	1.40x			1.06x
Net charge-offs as percentage of average loans, net of unearned income (annualized)	0.42		%	0.51		%

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TROUBLED DEBT RESTRUCTURINGS (TDRs)

TDRs are modified loans in which a concession is provided to a borrower experiencing financial difficulty. Residential first mortgage, home equity, consumer credit card and other consumer TDRs are consumer loans modified under the CAP. Commercial and investor real estate loan modifications are not the result of a formal program, but represent situations where modifications were offered as a workout alternative. Renewals of classified commercial and investor real estate loans are considered to be TDRs, even if no reduction in interest rate is offered, if the existing terms are considered to be below market. More detailed information is included in Note 4 "Loans and the Allowance For Credit Losses" to the consolidated financial statements. The following table summarizes the loan balance and related allowance for accruing and non-accruing TDRs for the periods presented:

Table 8—Troubled Debt Restructurings

	March 31, 2018				December 31, 2017
	Loan Balance		Allowance for Loan Losses		Loan Balance		Allowance for Loan Losses
	(In millions)
Accruing:
Commercial	$	233	$	26	$	232	$	27
Investor real estate	83		5		90		6
Residential first mortgage	162		15		368		36
Home equity	234		8		245		4
Consumer credit card	1		—		1		—
Other consumer	8		—		9		—
	721		54		945		73
Non-accrual status or 90 days past due and still accruing:
Commercial	194		35		115		30
Investor real estate	10		3		1		—
Residential first mortgage	57		6		69		7
Home equity	14		—		14		—
	275		44		199		37
Total TDRs - Loans	$	996	$	98	$	1,144	$	110
TDRs - Held For Sale	7		—		13		—
Total TDRs	$	1,003	$	98	$	1,157	$	110

_________

Note: All loans listed in the table above are considered impaired under applicable accounting literature.

The following table provides an analysis of the changes in commercial and investor real estate TDRs. TDRs with subsequent restructurings that meet the definition of a TDR are only reported as TDR inflows in the period they were first modified. Other than resolutions such as charge-offs, foreclosures, payments, sales and transfers to held for sale, Regions may remove loans from TDR classification if the following conditions are met: the borrower's financial condition improves such that the borrower is no longer in financial difficulty, the loan has not had any forgiveness of principal or interest, the loan has not been restructured as an "A" note/"B" note, the loan has been reported as a TDR over one fiscal year-end and the loan is subsequently refinanced or restructured at market terms such that it qualifies as a new loan.

For the consumer portfolio, changes in TDRs are primarily due to inflows from CAP modifications and outflows from payments and charge-offs. Given the types of concessions currently being granted under the CAP, as detailed in Note 4 “Loans and the Allowance for Credit Losses” to the consolidated financial statements, Regions does not expect that the market interest rate condition will be widely achieved. Therefore, Regions expects consumer loans modified through CAP to continue to be identified as TDRs for the remaining term of the loan.

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Table 9—Analysis of Changes in Commercial and Investor Real Estate TDRs

	Three Months Ended March 31, 2018						Three Months Ended  March 31, 2017
	Commercial			Investor Real Estate			Commercial			Investor Real Estate
	(In millions)
Balance, beginning of period	$	347		$	91		$	520		$	95
Inflows	165			48			81			34
Outflows:
Charge-offs	(2		)	—			(9		)	(1		)
Foreclosure	—			—			(1		)	—
Payments, sales and other (1)	(83		)	(46		)	(100		)	(15		)
Balance, end of period	$	427		$	93		$	491		$	113

_________

(1) The majority of this category consists of payments and sales. "Other" outflows include normal amortization/accretion of loan basis adjustments and loans transferred to held for sale. It also includes $8 million of commercial loans and $5 million of investor real estate loans refinanced or restructured as new loans and removed from TDR classification for the three months ended March 31, 2018. During the three months ended March 31, 2017, $4 million of commercial loans and none of investor real estate loans were refinanced or restructured as new loans and removed from TDR classification.

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NON-PERFORMING ASSETS

Non-performing assets are summarized as follows:

Table 10—Non-Performing Assets

	March 31, 2018			December 31, 2017
	(Dollars in millions)
Non-performing loans:
Commercial and industrial	$	364		$	404
Commercial real estate mortgage—owner-occupied	102			118
Commercial real estate construction—owner-occupied	5			6
Total commercial	471			528
Commercial investor real estate mortgage	14			5
Commercial investor real estate construction	—			1
Total investor real estate	14			6
Residential first mortgage	47			47
Home equity	69			69
Total consumer	116			116
Total non-performing loans, excluding loans held for sale	601			650
Non-performing loans held for sale	8			17
Total non-performing loans(1)	609			667
Foreclosed properties	66			73
Total non-performing assets(1)	$	675		$	740
Accruing loans 90 days past due:
Commercial and industrial	$	5		$	4
Commercial real estate mortgage—owner-occupied	1			1
Total commercial	6			5
Commercial investor real estate mortgage	—			1
Total investor real estate	—			1
Residential first mortgage(2)	69			92
Home equity	33			37
Indirect—vehicles	8			9
Consumer credit card	17			19
Other consumer	5			4
Total consumer	132			161
	$	138		$	167
Restructured loans not included in the categories above	$	721		$	945
Non-performing loans(1) to loans and non-performing loans held for sale	0.76		%	0.83		%
Non-performing assets(1) to loans, foreclosed properties and non-performing loans held for sale	0.85		%	0.92		%

_________

(1) Excludes accruing loans 90 days past due.

(2) Excludes residential first mortgage loans that are 100% guaranteed by the FHA and all guaranteed loans sold to the GNMA where Regions has the right but not the obligation to repurchase. Total 90 days or more past due guaranteed loans excluded were $127 million at March 31, 2018 and $124 million at December 31, 2017.

Non-performing loans at March 31, 2018 have decreased compared to year-end levels, due to continued broad-based improvement in credit quality. Total commercial and investor real estate non-performing loans, excluding loans held for sale, that were paying as agreed (e.g., less than 30 days past due) represented approximately 61 percent of the total balance at March 31, 2018.

Economic trends such as interest rates, unemployment, volatility in commodity prices, and collateral valuations will impact the future level of non-performing assets. Circumstances related to individually large credits could also result in volatility throughout 2018.

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Total loans past due 90 days or more and still accruing, excluding government guaranteed loans, were $138 million at March 31, 2018, a decrease from $167 million at December 31, 2017.

At March 31, 2018, Regions had approximately $75 million to $150 million of potential problem commercial and investor real estate loans that were not included in non-accrual loans, but for which management had concerns as to the ability of such borrowers to comply with their present loan repayment terms. This is a likely estimate of the amount of commercial and investor real estate loans that have the potential to migrate to non-accrual status in the next quarter.

In order to arrive at the estimate of potential problem loans, personnel from geographic regions forecast certain larger dollar loans that may potentially be downgraded to non-accrual at a future time, depending on the occurrence of future events. These personnel consider a variety of factors, including the borrower’s capacity and willingness to meet the contractual repayment terms, make principal curtailments or provide additional collateral when necessary, and provide current and complete financial information including global cash flows, contingent liabilities and sources of liquidity. Based upon the consideration of these factors, a probability weighting is assigned to loans to reflect the potential for migration to the pool of potential problem loans during this specific time period. Additionally, for other loans (for example, smaller dollar loans), a trend analysis is incorporated to determine the estimate of potential future downgrades. Because of the inherent uncertainty in forecasting future events, the estimate of potential problem loans ultimately represents the estimated aggregate dollar amounts of loans as opposed to an individual listing of loans.

The majority of the loans on which the potential problem loan estimate is based are considered criticized and classified. Detailed disclosures for substandard accrual loans (as well as other credit quality metrics) are included in Note 4 “Loans and the Allowance for Credit Losses” to the consolidated financial statements.

The following table provides an analysis of non-accrual loans (excluding loans held for sale) by portfolio segment:

Table 11—Analysis of Non-Accrual Loans

	Non-Accrual Loans, Excluding Loans Held for Sale Three Months Ended March 31, 2018
	Commercial			Investor Real Estate			Consumer(1)			Total
	(In millions)
Balance at beginning of period	$	528		$	6		$	116		$	650
Additions	78			18			—			96
Net payments/other activity	(84		)	(1		)	2			(83		)
Return to accrual	(16		)	(1		)	—			(17		)
Charge-offs on non-accrual loans(2)	(28		)	(8		)	—			(36		)
Transfers to held for sale(3)	(5		)	—			(2		)	(7		)
Sales	(2		)	—			—			(2		)
Balance at end of period	$	471		$	14		$	116		$	601

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	Non-Accrual Loans, Excluding Loans Held for Sale Three Months Ended March 31, 2017
	Commercial			Investor Real Estate			Consumer(1)			Total
	(In millions)
Balance at beginning of period	$	836		$	17		$	142		$	995
Additions	186			5			—			191
Net payments/other activity	(90		)	(2		)	(11		)	(103		)
Return to accrual	(15		)	(1		)	—			(16		)
Charge-offs on non-accrual loans(2)	(56		)	(1		)	—			(57		)
Transfers to held for sale(3)	(4		)	(1		)	—			(5		)
Transfers to foreclosed properties	(1		)	—			—			(1		)
Sales	—			—			—			—
Balance at end of period	$	856		$	17		$	131		$	1,004

________

(1) All net activity within the consumer portfolio segment other than sales and transfers to held for sale (including related charge-offs) is included as a single net number within the net payments/other activity line.

(2) Includes charge-offs on loans on non-accrual status and charge-offs taken upon sale and transfer of non-accrual loans to held for sale.

(3) Transfers to held for sale are shown net of charge-offs of $3 million and $2 million recorded upon transfer for the three months ended March 31, 2018 and 2017, respectively.

GOODWILL

Goodwill totaled $4.9 billion at both March 31, 2018 and December 31, 2017 and is allocated to each of Regions’ reportable segments (each a reporting unit), at which level goodwill is tested for impairment on an annual basis or more often if events and circumstances indicate the fair value of the reporting unit may have declined below the carrying value (refer to Note 1 “Summary of Significant Accounting Policies” to the 2017 consolidated financial statements included in the Annual Report on Form 10-K for the year ended December 31, 2017 for further discussion of when Regions tests goodwill for impairment and the Company's methodology and valuation approaches used to determine the estimated fair value of each reporting unit).

The result of the assessment performed for the first quarter of 2018 did not indicate that the estimated fair values of the Company’s reporting units (Corporate Bank, Consumer Bank and Wealth Management) had declined below their respective carrying values. Therefore, Regions determined that a test of goodwill impairment was not required for each of Regions’ reporting units for the March 31, 2018 interim period.

OTHER EARNING ASSETS

Other earning assets totaled $1.6 billion at March 31, 2018, consisting primarily of $619 million of FRB and FHLB stock, $450 million of operating lease assets, and $525 million marketable equity securities. At December 31, 2017, other earning assets totaled $1.9 billion, consisting primarily of $684 million of FRB and FHLB stock, $489 million of operating lease assets, and $414 million of marketable equity securities.

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DEPOSITS

Regions competes with other banking and financial services companies for a share of the deposit market. Regions’ ability to compete in the deposit market depends heavily on the pricing of its deposits and how effectively the Company meets customers’ needs. Regions employs various means to meet those needs and enhance competitiveness, such as providing a high level of customer service, competitive pricing and convenient branch locations for its customers. Regions also serves customers through providing centralized, high-quality banking services and alternative product delivery channels such as mobile and internet banking.

The following table summarizes deposits by category:

Table 12—Deposits

	March 31, 2018		December 31, 2017
	(In millions)
Non-interest-bearing demand	$	36,935	$	36,127
Savings	8,983		8,413
Interest-bearing transaction	19,916		20,161
Money market—domestic	24,478		25,306
Money market—foreign	18		23
Low-cost deposits	90,330		90,030
Time deposits	6,660		6,859
	$	96,990	$	96,889

Total deposits at March 31, 2018 increased approximately $101 million compared to year-end 2017 levels. The increase was driven by increases in non-interest-bearing demand and savings accounts totaling approximately $1.4 billion. These increases were offset by declines in money market accounts and interest-bearing transaction accounts totaling approximately $1.1 billion. Money market accounts have continued to decline as a result of a decision to reduce higher-cost brokered deposits that were no longer a necessary component of the Company's funding strategy. Interest-bearing transaction accounts have declined primarily due to the Company's continued strategic reduction of certain trust customer deposits, which require collateralization by securities, and have been shifted into other fee income-producing customer investments. Customer time deposits declined approximately $199 million due to maturities with minimal reinvestment by customers as a result of continued customer preference for more liquid deposit products as market interest rates remain low.

SHORT-TERM BORROWINGS

Short-term borrowings, which consist of FHLB advances, totaled zero at March 31, 2018 as compared to $500 million at December 31, 2017. The levels of these borrowings can fluctuate depending on the Company's funding needs and the sources utilized.

In the near term, Regions expects the use of wholesale unsecured borrowings for its funding needs to remain low. Short-term secured borrowings, such as securities sold under agreements to repurchase and FHLB advances, are a core portion of Regions' funding strategy.

The securities financing market and specifically short-term FHLB advances continue to provide reliable funding at attractive rates. See the "Liquidity Risk" section for further detail of Regions' borrowing capacity with the FHLB.

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LONG-TERM BORROWINGS

Table 13—Long-Term Borrowings

	March 31, 2018			December 31, 2017
	(In millions)
Regions Financial Corporation (Parent):
2.00% senior notes due May 2018	$	101		$	101
3.20% senior notes due February 2021	1,101			1,101
2.75% senior notes due August 2022	995			995
7.75% subordinated notes due September 2024	100			100
6.75% subordinated debentures due November 2025	158			158
7.375% subordinated notes due December 2037	297			297
Valuation adjustments on hedged long-term debt	(75		)	(50		)
	2,677			2,702
Regions Bank:
Federal Home Loan Bank advances	2,603			3,653
2.25% senior notes due September 2018	749			749
7.50% subordinated notes due May 2018	500			500
2.75% senior notes due April 2021	548			—
3 month LIBOR plus 0.38% of floating rate senior notes due April 2021	349			—
6.45% subordinated notes due June 2037	495			495
Other long-term debt	35			35
Valuation adjustments on hedged long-term debt	(7		)	(2		)
	5,272			5,430
Total consolidated	$	7,949		$	8,132

Long-term borrowings decreased approximately $183 million since year-end 2017. FHLB advances decreased $1.1 billion. Regions issued $550 million of 2.75% senior bank notes due April 1, 2021 and simultaneously entered into an interest rate swap effectively converting the 2.75% senior bank notes to floating rate notes at 1 month LIBOR. Regions also issued $350 million of senior floating rate bank notes at 3 month LIBOR plus 38 basis points due April 1, 2021.

Long-term FHLB advances have a weighted-average interest rate of 1.8 percent at March 31, 2018 and 1.4 percent at December 31, 2017 with remaining maturities ranging from less than one year to thirteen years and a weighted-average of 0.8 years.

STOCKHOLDERS’ EQUITY

Stockholders’ equity was $15.9 billion at March 31, 2018 as compared to $16.2 billion billion at December 31, 2017. During the first three months of 2018, net income increased stockholders’ equity by $414 million, while cash dividends on common stock reduced stockholders' equity by $101 million and cash dividends on preferred stock reduced stockholder's equity by $16 million. Changes in accumulated other comprehensive income decreased stockholders' equity by $402 million, primarily due to the net change in unrealized gains (losses) on securities available for sale and derivative instruments. Common stock repurchased during the first three months of 2018 reduced stockholders' equity by $235 million. These shares were immediately retired and therefore are not included in treasury stock.

On June 28, 2017, Regions received no objection from the Federal Reserve to its 2017 capital plan that was submitted as part of the CCAR process, which included the repurchase of common shares and a common stock dividend increase.

See Note 7 “Stockholders’ Equity and Accumulated Other Comprehensive Income (Loss)” for additional information.

REGULATORY REQUIREMENTS

CAPITAL RULES

Regions and Regions Bank are required to comply with regulatory capital requirements established by Federal and State banking agencies. These regulatory capital requirements involve quantitative measures of the Company's assets, liabilities and selected off-balance sheet items, and also qualitative judgments by the regulators. Failure to meet minimum capital requirements can subject the Company to a series of increasingly restrictive regulatory actions.

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Under the Basel III Rules, Regions is designated as a standardized approach bank and, as such, began transitioning to the Basel III Rules in January 2015 subject to a phase-in period extending to January 2019. When fully phased in, the Basel III Rules will increase capital requirements through higher minimum capital levels as well as through increases in risk-weights for certain exposures. Additionally, the Basel III Rules place greater emphasis on common equity. The Basel III Rules, among other things, (i) introduce a measure called CET1, (ii) specify that Tier 1 capital consists of CET1 and “Additional Tier 1 capital” instruments meeting specified requirements, (iii) define CET1 narrowly by requiring that most deductions/adjustments to regulatory capital measures be made to CET1 and not to the other components of capital and (iv) expand the scope of the deductions/adjustments to capital as compared to prior regulations.

Additionally, the Basel III Rules introduce a new capital conservation buffer designed to absorb losses during periods of economic stress. The capital conservation buffer is on top of minimum risk-weighted asset ratios. The Basel III Rules also prescribe a standardized approach for risk weightings of assets and off-balance sheet exposures to derive the capital ratios.

In September 2017, the federal banking agencies proposed to revise and simplify the capital treatment for selected categories of deferred tax assets, MSRs, investments in non-consolidated financial entities and minority interests for banking organizations, such as Regions and Regions Bank, that are not subject to the advanced approach. In November 2017, the federal banking agencies revised the Basel III Rules to extend the current transitional treatment of these items for standardized approach banking organizations until the September 2017 proposal is finalized. The September 2017 proposal would also change the capital treatment of high volatility commercial real estate loans under the standardized approach. These changes would have the impact of increasing regulatory capital ratios for some standardized approach banking organizations such as Regions. Regions continues to review the proposal and its impact on the Company’s capital requirements.

In December 2017, the Basel Committee published standards that it described as the finalization of the Basel III post-crisis regulatory reforms (the standards are commonly referred to as “Basel IV”). Among other things, these standards revise the Basel Committee’s standardized approach for credit risk (including by recalibrating risk weights and introducing new capital requirements for certain “unconditionally cancellable commitments,” such as unused credit card lines of credit) and provide a new standardized approach for operational risk capital. Under the Basel framework, these standards will generally be effective on January 1, 2022, with an aggregate output floor phasing in through January 1, 2027. Under the current U.S. capital rules, operational risk capital requirements and a capital floor apply only to advanced approach institutions, and not to Regions or Regions Bank. The impact of Basel IV on the Company will depend on the manner in which it is implemented by the federal banking regulators.

Additional discussion of the Basel III Rules and their applicability to Regions is included in Note 14 "Regulatory Capital Requirements and Restrictions" to the consolidated financial statements in the Annual Report on Form 10-K for the year ended December 31, 2017, as well as related discussion in Management's Discussion and Analysis.

The following table summarizes the applicable holding company and bank regulatory requirements:

Table 14—Regulatory Capital Requirements

Transitional Basis Basel III Regulatory Capital Rules (1)	March 31, 2018 Ratio (2)		December 31, 2017 Ratio		Minimum Requirement		To Be Well Capitalized
Basel III common equity Tier 1 capital:
Regions Financial Corporation	11.11	%	11.05	%	4.50	%	N/A
Regions Bank	12.92		12.49		4.50		6.50	%
Tier 1 capital:
Regions Financial Corporation	11.92	%	11.86	%	6.00	%	6.00	%
Regions Bank	12.92		12.49		6.00		8.00
Total capital:
Regions Financial Corporation	13.74	%	13.78	%	8.00	%	10.00	%
Regions Bank	14.29		13.97		8.00		10.00
Leverage capital:
Regions Financial Corporation	10.05	%	10.01	%	4.00	%	N/A
Regions Bank	10.90		10.54		4.00		5.00	%

________

(1) The 2018 and 2017 capital ratios were calculated at different points of the phase-in period under the Basel III Rules and therefore are not directly comparable.

(2) The current quarter Basel III CET1 capital, Tier 1 capital, Total capital, and Leverage capital ratios are estimated.

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LIQUIDITY COVERAGE RATIO

The Federal Reserve, the OCC and the FDIC approved a final rule in 2014 implementing a minimum LCR requirement for certain large BHCs, savings and loan holding companies and depository institutions, and a less stringent LCR requirement (the "modified LCR") for other banking organizations, such as Regions, with $50 billion or more in total consolidated assets. The final rule imposes a monthly calculation requirement. As of January 1, 2017, the LCR calculation rule has been fully phased in. In December 2016, the Federal Reserve issued a final rule on the public disclosure of the LCR calculation that requires BHCs, such as Regions, to disclose publicly, on a quarterly basis, quantitative and qualitative information about certain components of its LCR beginning October 1, 2018.

At March 31, 2018, the Company was fully compliant with the LCR requirements. Changes in the mix and size of the Company's balance sheet and investment portfolio are likely to occur in the future, and additional funding may need to be sourced to remain compliant.

See the “Supervision and Regulation—Liquidity Regulation” subsection of the “Business” section and the “Risk Factors” section of the Company's Annual Report on Form 10-K for the year ended December 31, 2017 for more information.

RATINGS

Table 15 “Credit Ratings” reflects the debt ratings information of Regions Financial Corporation and Regions Bank by Standard and Poor's ("S&P"), Moody’s, Fitch and Dominion Bond Rating Service ("DBRS") as of March 31, 2018 and December 31, 2017.

Table 15—Credit Ratings

	As of March 31, 2018 and December 31, 2017
	S&P	Moody’s	Fitch	DBRS
Regions Financial Corporation
Senior unsecured debt	BBB+	Baa2	BBB+	BBBH
Subordinated debt	BBB	Baa2	BBB	BBB
Regions Bank
Short-term	A-2	P-1	F2	R-1L
Long-term bank deposits	N/A	A2	A-	AL
Long-term rating	A-	A2	BBB+	N/A
Senior unsecured debt	A-	Baa2	BBB+	AL
Subordinated debt	BBB+	Baa2	BBB	BBBH
Outlook	Stable	Stable	Stable	Positive

In general, ratings agencies base their ratings on many quantitative and qualitative factors, including capital adequacy, liquidity, asset quality, business mix, probability of government support, and level and quality of earnings. Any downgrade in credit ratings by one or more ratings agencies may impact Regions in several ways, including, but not limited to, Regions’ access to the capital markets or short-term funding, borrowing cost and capacity, collateral requirements, and acceptability of its letters of credit, thereby potentially adversely impacting Regions’ financial condition and liquidity. See the “Risk Factors” section in the Annual Report on Form 10-K for the year ended December 31, 2017 for more information.

A security rating is not a recommendation to buy, sell or hold securities, and the ratings are subject to revision or withdrawal at any time by the assigning rating agency. Each rating should be evaluated independently of any other rating.

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NON-GAAP MEASURES

The table below presents computations of earnings and certain other financial measures, which exclude certain significant items that are included in the financial results presented in accordance with GAAP. These non-GAAP financial measures include “adjusted average total loans,” “adjusted efficiency ratio,” “adjusted fee income ratio,” “return on average tangible common stockholders’ equity,” average and end of period “tangible common stockholders’ equity,” and “Basel III CET1, on a fully phased-in basis” and related ratios. Regions believes that expressing earnings and certain other financial measures excluding these significant items provides a meaningful base for period-to-period comparisons, which management believes will assist investors in analyzing the operating results of the Company and predicting future performance. These non-GAAP financial measures are also used by management to assess the performance of Regions’ business because management does not consider the activities related to the adjustments to be indications of ongoing operations. Regions believes that presentation of these non-GAAP financial measures will permit investors to assess the performance of the Company on the same basis as that applied by management. Management and the Board utilize these non-GAAP financial measures as follows:

• Preparation of Regions’ operating budgets

• Monthly financial performance reporting

• Monthly close-out reporting of consolidated results (management only)

• Presentations to investors of Company performance

Total average loans is presented excluding the impact of the first quarter 2018 residential first mortgage loan sale and the indirect vehicles third-party exit portfolio to arrive at adjusted average total loans (non-GAAP). Regions believes adjusting average total loans provides a meaning calculation of loan growth rates and presents them on the same basis as that applied by management.

The adjusted efficiency ratio (non-GAAP), which is a measure of productivity, is generally calculated as adjusted non-interest expense divided by adjusted total revenue on a taxable-equivalent basis. The adjusted fee income ratio (non-GAAP) is generally calculated as adjusted non-interest income divided by adjusted total revenue on a taxable-equivalent basis. Management uses these ratios to monitor performance and believes these measures provide meaningful information to investors. Non-interest expense (GAAP) is presented excluding adjustments to arrive at adjusted non-interest expense (non-GAAP), which is the numerator for the adjusted efficiency ratio. Non-interest income (GAAP) is presented excluding adjustments to arrive at adjusted non-interest income (non-GAAP), which is the numerator for the adjusted fee income ratio. Net interest income and other financing income on a taxable-equivalent basis and non-interest income are added together to arrive at total revenue on a taxable-equivalent basis. Adjustments are made to arrive at adjusted total revenue on a taxable-equivalent basis (non-GAAP), which is the denominator for the adjusted efficiency and adjusted fee income ratios.

Tangible common stockholders’ equity ratios have become a focus of some investors in analyzing the capital position of the Company absent the effects of intangible assets and preferred stock. Traditionally, the Federal Reserve and other banking regulatory bodies have assessed a bank’s capital adequacy based on Tier 1 capital, the calculation of which is codified in federal banking regulations. Analysts and banking regulators have assessed Regions’ capital adequacy using the tangible common stockholders’ equity measure. Because tangible common stockholders’ equity is not formally defined by GAAP, this measure is considered to be a non-GAAP financial measure and other entities may calculate it differently than Regions’ disclosed calculations. Since analysts and banking regulators may assess Regions’ capital adequacy using tangible common stockholders’ equity, Regions believes that it is useful to provide investors the ability to assess Regions’ capital adequacy on this same basis.

The Basel Committee's Basel III framework will strengthen international capital and liquidity regulations. When fully phased-in, Basel III will increase capital requirements through higher minimum capital levels as well as through increases in risk-weights for certain exposures. Additionally, the Basel III Rules place greater emphasis on common equity. The Federal Reserve released its final Basel III Rules detailing the U.S. implementation of Basel III in 2013. Regions, as a standardized approach bank, began transitioning to the Basel III framework in January 2015 subject to a phase-in period extending through January 2019. Because the Basel III implementation regulations will not be fully phased-in until 2019 and, are not formally defined by GAAP, these measures are considered to be non-GAAP financial measures. Since analysts and banking regulators may assess Regions’ capital adequacy using the fully phased-in Basel III framework, Regions believes that it is useful to provide investors information enabling them to assess Regions’ capital adequacy on the same basis.

Non-GAAP financial measures have inherent limitations, are not required to be uniformly applied and are not audited. Although these non-GAAP financial measures are frequently used by stakeholders in the evaluation of a company, they have limitations as analytical tools, and should not be considered in isolation, or as a substitute for analyses of results as reported under GAAP. In particular, a measure of earnings that excludes selected items does not represent the amount that effectively accrues directly to stockholders.

The following tables provide: 1) a reconciliation of average total loans to adjusted average total loans (non-GAAP), 2) a reconciliation of net income (GAAP) to net income available to common shareholders (GAAP), 3) a reconciliation of non-interest expense from continuing operations (GAAP) to adjusted non-interest expense from continuing operations (non-GAAP), 4) a reconciliation of non-interest income from continuing operations (GAAP) to adjusted non-interest income from continuing

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operations (non-GAAP), 5) a computation of adjusted total revenue (non-GAAP), 6) a computation of the adjusted efficiency ratio (non-GAAP), 7) a computation of the adjusted fee income ratio (non-GAAP), 8) a reconciliation of average and ending stockholders’ equity (GAAP) to average and ending tangible common stockholders’ equity (non-GAAP) and calculations of related ratios (non-GAAP), 9) a reconciliation of stockholders’ equity (GAAP) to Basel III CET1, on a fully phased-in basis (non-GAAP), and calculation of the related ratio based on Regions’ current understanding of the Basel III requirements (non-GAAP).

Table 16—GAAP to Non-GAAP Reconciliations

	March 31, 2018		December 31, 2017
	(In millions, net of unearned income)
ADJUSTED AVERAGE BALANCES OF LOANS
Average total loans	$	79,891	$	79,523
Less: Balances of residential first mortgage loans sold (1)	164		254
Less: Indirect—vehicles third-party	1,061		1,223
Adjusted average total loans (non-GAAP)	$	78,666	$	78,046

		Three Months Ended March 31
		2018			2017
		(Dollars in millions)
INCOME — CONSOLIDATED
Net income (GAAP)		$	414		$	301
Preferred dividends (GAAP)		(16		)	(16		)
Net income available to common shareholders (GAAP)	A	$	398		$	285
ADJUSTED EFFICIENCY AND FEE INCOME RATIOS — CONTINUING OPERATIONS
Non-interest expense (GAAP)	B	$	884		$	843
Significant items:
Branch consolidation, property and equipment charges		(3		)	(1		)
Expenses associated with residential mortgage loan sale		(4		)	—
Salary and employee benefits—severance charges		(15		)	(4		)
Adjusted non-interest expense (non-GAAP)	C	$	862		$	838
Net interest income and other financing income (GAAP)		$	909		$	859
Taxable-equivalent adjustment		13			22
Net interest income and other financing income, taxable-equivalent basis	D	922			881
Non-interest income (GAAP)	E	507			474
Significant items:
Leveraged lease termination gains		(4		)	—
Adjusted non-interest income (non-GAAP)	F	$	503		$	474
Total revenue, taxable-equivalent basis	D+E=G	$	1,429		$	1,355
Adjusted total revenue, taxable-equivalent basis (non-GAAP)	D+F=H	$	1,425		$	1,355
Efficiency ratio (GAAP)	B/G	61.92		%	62.23		%
Adjusted efficiency ratio (non-GAAP)	C/H	60.54		%	61.91		%
Fee income ratio (GAAP)	E/G	35.49		%	35.00		%
Adjusted fee income ratio (non-GAAP)	F/H	35.29		%	34.98		%
RETURN ON AVERAGE TANGIBLE COMMON STOCKHOLDERS’ EQUITY — CONSOLIDATED
Average stockholders’ equity (GAAP)		$	15,848		$	16,650
Less: Average intangible assets (GAAP)		5,076			5,119
Average deferred tax liability related to intangibles (GAAP)		(99		)	(156		)
Average preferred stock (GAAP)		820			820
Average tangible common stockholders’ equity (non-GAAP)	I	$	10,051		$	10,867
Return on average tangible common stockholders’ equity (non-GAAP)(2)	A/I	16.08		%	10.63		%

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		March 31, 2018			December 31, 2017
		(Dollars in millions, except per share data)
TANGIBLE COMMON RATIOS — CONSOLIDATED
Ending stockholders’ equity (GAAP)		$	15,866		$	16,192
Less: Ending intangible assets (GAAP)		5,071			5,081
Ending deferred tax liability related to intangibles (GAAP)		(99		)	(99		)
Ending preferred stock (GAAP)		820			820
Ending tangible common stockholders’ equity (non-GAAP)	J	$	10,074		$	10,390
Ending total assets (GAAP)		$	122,913		$	124,294
Less: Ending intangible assets (GAAP)		5,071			5,081
Ending deferred tax liability related to intangibles (GAAP)		(99		)	(99		)
Ending tangible assets (non-GAAP)	K	$	117,941		$	119,312
End of period shares outstanding	L	1,123			1,134
Tangible common stockholders’ equity to tangible assets (non-GAAP)	J/K	8.54		%	8.71		%
Tangible common book value per share (non-GAAP)	J/L	$	8.98		$	9.16

		March 31, 2018			December 31, 2017
		(Dollars in millions, except per share data)
BASEL III COMMON EQUITY TIER 1 RATIO—FULLY PHASED-IN PRO-FORMA (3)
Stockholders’ equity (GAAP)		$	15,866		$	16,192
Non-qualifying goodwill and intangibles		(4,961		)	(4,972		)
Adjustments, including all components of accumulated other comprehensive income, disallowed deferred tax assets, threshold deductions and other adjustments		1,121			712
Preferred stock (GAAP)		(820		)	(820		)
Basel III common equity Tier 1—Fully Phased-In Pro-Forma (non-GAAP)	M	$	11,206		$	11,112
Basel III risk-weighted assets—Fully Phased-In Pro-Forma (non-GAAP) (4)	N	$	101,482		$	101,498
Basel III common equity Tier 1 ratio—Fully Phased-In Pro-Forma (non-GAAP)	M/N	11.04		%	10.95		%

_________

(1) Adjustments to average loan balances assume a simple day-weighted average impact for the first quarter of 2018, and are equal to the ending balance of the residential first mortgage loans sold for the prior period.

(2) Income statement amounts have been annualized in calculation.

(3) Current quarter amounts and the resulting ratio are estimated.

(4) Regions continues to develop systems and internal controls to precisely calculate risk-weighted assets as required by Basel III on a fully phased-in basis. The amounts included above are a reasonable approximation, based on current understanding of the requirements.

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OPERATING RESULTS

NET INTEREST INCOME AND MARGIN

Table 17—Consolidated Average Daily Balances and Yield/Rate Analysis

	Three Months Ended March 31
	2018							2017
	Average Balance			Income/ Expense		Yield/ Rate		Average Balance			Income/ Expense		Yield/ Rate
	(Dollars in millions; yields on taxable-equivalent basis)
Assets
Earning assets:
Federal funds sold and securities purchased under agreements to resell	$	1		$	—	—	%	$	1		$	—	—	%
Debt securities:
Taxable	24,588			154		2.52		24,884			147		2.40
Tax-exempt	—			—		—		1			—		—
Loans held for sale	359			3		3.21		541			4		2.99
Loans, net of unearned income (1)(2)	79,891			864		4.35		80,178			795		3.98
Investment in operating leases, net	472			4		2.82		679			5		3.24
Other earning assets	2,853			19		2.71		3,756			15		1.59
Total earning assets	108,164			1,044		3.88		110,040			966		3.53
Allowance for loan losses	(933		)					(1,092		)
Cash and due from banks	1,951							1,899
Other non-earning assets	14,312							13,963
	$	123,494						$	124,810
Liabilities and Stockholders’ Equity
Interest-bearing liabilities:
Savings	$	8,615		4		0.18		$	8,050		3		0.17
Interest-bearing checking	19,935			16		0.32		19,915			8		0.15
Money market	24,601			14		0.24		27,226			9		0.14
Time deposits	6,813			15		0.91		7,148			15		0.83
Total interest-bearing deposits (3)	59,964			49		0.33		62,339			35		0.22
Federal funds purchased and securities sold under agreements to repurchase	103			—		—		—			—		—
Other short-term borrowings	156			1		1.46		289			—		—
Long-term borrowings	9,531			72		3.00		7,462			50		2.68
Total interest-bearing liabilities	69,754			122		0.71		70,090			85		0.49
Non-interest-bearing deposits (3)	35,464			—		—		35,628			—		—
Total funding sources	105,218			122		0.46		105,718			85		0.32
Net interest spread						3.17							3.04
Other liabilities	2,428							2,443
Stockholders’ equity	15,848							16,649
	$	123,494						$	124,810
Net interest income and other financing income/margin on a taxable-equivalent basis (4)				$	922	3.46	%				$	881	3.25	%

_______

(1) Loans, net of unearned income include non-accrual loans for all periods presented.

(2) Interest income includes net loan fees of $5 million and $5 million for the three months ended March 31, 2018 and 2017, respectively.

(3) Total deposit costs may be calculated by dividing total interest expense on deposits by the sum of interest-bearing deposits and non-interest-bearing deposits. The rates for total deposit costs equal 0.21% and 0.14% for the three months ended March 31, 2018 and 2017, respectively.

(4) The computation of taxable-equivalent net interest income and other financing income is based on the statutory federal income tax rate of 21% and 35% for March 31, 2018 and 2017, respectively, adjusted for applicable state income taxes net of the related federal tax benefit.

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For the first quarter of 2018, net interest income and other financing income (taxable-equivalent basis) totaled $922 million compared to $881 million in the first quarter of 2017. The net interest margin (taxable-equivalent basis) was 3.46 percent for the first quarter of 2018 and 3.25 percent for the first quarter of 2017. The increase in net interest margin (taxable-equivalent basis) for the first quarter of 2018, compared to the same period of 2017, was primarily due to higher market interest rates, partially offset by increases in funding costs associated with the bank debt issued early in the first quarter of 2018, and lower average loan balances.

Management expects to increase adjusted net interest income and other financing income (non-GAAP and non-taxable equivalent) in the range of 4 to 6 percent on a full year basis in 2018.

MARKET RISK—INTEREST RATE RISK

Regions’ primary market risk is interest rate risk. This includes uncertainty with respect to absolute interest rate levels as well as relative interest rate levels, which are impacted by both the shape and the slope of the various yield curves that affect the financial products and services that the Company offers. To quantify this risk, Regions measures the change in its net interest income and other financing income in various interest rate scenarios compared to a base case scenario. Net interest income and other financing income sensitivity to market rate movements is a useful short-term indicator of Regions’ interest rate risk.

Sensitivity Measurement—Financial simulation models are Regions’ primary tools used to measure interest rate exposure. Using a wide range of sophisticated simulation techniques provides management with extensive information on the potential impact to net interest income and other financing income caused by changes in interest rates. Models are structured to simulate cash flows and accrual characteristics of Regions’ balance sheet. Assumptions are made about the direction and volatility of interest rates, the slope of the yield curve, and the changing composition of the balance sheet that results from both strategic plans and from customer behavior. Among the assumptions are expectations of balance sheet growth and composition, the pricing and maturity characteristics of existing business and the characteristics of future business. Interest rate-related risks are expressly considered, such as pricing spreads, the pricing of deposit accounts, prepayments and other option risks. Regions considers these factors, as well as the degree of certainty or uncertainty surrounding their future behavior.

The primary objective of asset/liability management at Regions is to coordinate balance sheet composition with interest rate risk management to sustain reasonable and stable net interest income and other financing income throughout various interest rate cycles. In computing interest rate sensitivity for measurement, Regions compares a set of alternative interest rate scenarios to the results of a base case scenario derived using “market forward rates.” The standard set of interest rate scenarios includes the traditional instantaneous parallel rate shifts of plus 100 and 200 basis points. While not presented, up-rate scenarios of greater magnitude are also analyzed. Larger magnitude down-rate scenarios continue to be of limited use in the current rate environment; however, recent increases in short-term rates have caused Regions to transition to a minus 100 basis point scenario, as opposed to the minus 50 basis point scenario that had been presented in recent years. In addition to parallel curve shifts, multiple curve steepening and flattening scenarios are contemplated. Regions includes simulations of gradual interest rate movements phased in over a six-month period that may more realistically mimic the speed of potential interest rate movements.

Exposure to Interest Rate Movements—As of March 31, 2018, Regions was asset sensitive to both gradual and instantaneous parallel yield curve shifts as compared to the base case for the measurement horizon ending March 2019. The estimated exposure associated with the parallel yield curve shift of minus 100 basis points in the table below reflects the combined impacts of movements in short-term and long-term interest rates. The decline in short-term interest rates (such as the Fed Funds rate, the rate of Interest on Excess Reserves and 1 month LIBOR) will lead to a reduction of yield on assets and liabilities contractually tied to such rates. Recent Fed Funds increases have not resulted in a meaningful increase in deposit costs for Regions. Therefore, it is expected that declines in deposit costs will only partially offset the decline in asset yields. A reduction in intermediate and long-term interest rates (such as intermediate to longer-term U.S. Treasuries, swap and mortgage rates) will drive yields lower on certain fixed rate, newly originated or renewed loans, reduce prospective yields on certain investment portfolio purchases, and increase amortization of premium expense on existing securities in the investment portfolio. At current rate levels, the interest income sensitivity afforded by potential further extension of investment securities and the resulting impact on premium amortization is reduced, making intermediate and long-term interest rate sensitivity primarily attributable to changes in the level of reinvestment yields on fixed rate assets.

With respect to sensitivity along the yield curve, the balance sheet is estimated to be asset sensitive to short-term, intermediate-term, and long-term rates individually. Current simulation models estimate that, as compared to the base case, net interest income and other financing income over a 12 month horizon would respond favorably by approximately $87 million if intermediate and longer-term interest rates were to immediately and on a sustained basis exceed the base scenario by 100 basis points. Conversely, if intermediate and longer-term interest rates were to immediately and on a sustained basis underperform the base case by 100 basis points, then net interest income and other financing income, as compared to the base case, would decline by approximately $98 million.

The table below summarizes Regions' positioning in various parallel yield curve shifts (i.e., including all yield curve tenors). The scenarios are inclusive of all interest rate risk hedging activities.

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Table 18—Interest Rate Sensitivity

	Estimated Annual Change in Net Interest Income March 31, 2018
	(In millions)
Gradual Change in Interest Rates
+ 200 basis points		$175
+ 100 basis points	101
- 100 basis points	(117		)
Instantaneous Change in Interest Rates
+ 200 basis points		$166
+ 100 basis points	114
- 100 basis points	(194		)

As discussed above, the interest rate sensitivity analysis presented in Table 18 is informed by a variety of assumptions and estimates regarding the course of the balance sheet in both the baseline scenario as well as the scenarios of instantaneous and gradual shifts in the yield curve. Though there are many assumptions that affect the estimates for net interest income and other financing income, those pertaining to deposit pricing, deposit mix and overall balance sheet composition are particularly impactful. Given the uncertainties associated with the prolonged period of low interest rates, management evaluates the impact to its sensitivity analysis of these key assumptions. Sensitivity calculations are hypothetical and should not be considered to be predictive of future results.

The Company’s baseline balance sheet growth assumptions include moderate loan and deposit growth reflecting management's best estimate. The behavior of deposits in response to changes in interest rate levels is largely informed by analyses of prior rate cycles, but with suitable adjustments based on management’s expectations in the current rate environment. In the +200 basis point gradual interest rate change scenario in Table 18, the total cumulative interest bearing deposit re-pricing sensitivity is expected to be approximately 60 percent of changes in short-term market rates (e.g., Fed Funds), as compared to approximately 55 percent in the 2004 to 2007 historical timeframe. Recently observed market rate movements have yielded higher levels of asset sensitivity than modeled due primarily to outperformance in deposit betas as compared to the model assumption. A 5 percentage point lower sensitivity than the 60 percent baseline would increase12 month net interest income and other financing income in the gradual +200 basis points scenario by approximately $62 million. While the estimates should be used as a guide, differences may result driven by the pace of rate changes, and other market and competitive factors.

Similarly, management assumes that the change in the mix of deposits in a rising rate environment versus the baseline balance sheet growth assumptions is informed by analyses of prior rate cycles. Management assumes that in rising rate scenarios, some shift from non-interest bearing to interest-bearing products will occur. The magnitude of the shift is rate dependent, but equates to approximately $3.5 billion over 12 months in the gradual +200 basis point scenario in Table 18. In the event this shift increased by an additional $3.0 billion over 12 months, the result would be a reduction of 12 month net interest income and other financing income in the gradual +200 basis points scenario by approximately $29 million.

Interest rate movements may also have an impact on the value of Regions’ securities portfolio, which can directly impact the carrying value of stockholders’ equity. Regions from time to time may hedge these price movements with derivatives (as discussed below).

Derivatives—Regions uses financial derivative instruments for management of interest rate sensitivity. ALCO, which consists of members of Regions’ senior management team, in its oversight role for the management of interest rate sensitivity, approves the use of derivatives in balance sheet hedging strategies. Derivatives are also used to offset the risks associated with customer derivatives, which include interest rate, credit and foreign exchange risks. The most common derivatives Regions employs are forward rate contracts, Eurodollar futures contracts, interest rate swaps, options on interest rate swaps, interest rate caps and floors, and forward sale commitments.

Forward rate contracts are commitments to buy or sell financial instruments at a future date at a specified price or yield. A Eurodollar futures contract is a future on a Eurodollar deposit. Eurodollar futures contracts subject Regions to market risk associated with changes in interest rates. Because futures contracts are cash settled daily, there is minimal credit risk associated with Eurodollar futures. Interest rate swaps are contractual agreements typically entered into to exchange fixed for variable (or vice versa) streams of interest payments. The notional principal is not exchanged but is used as a reference for the size of interest settlements. Interest rate options are contracts that allow the buyer to purchase or sell a financial instrument at a predetermined price and time. Forward sale commitments are contractual obligations to sell market instruments at a future date for an already agreed-upon price. Foreign currency contracts involve the exchange of one currency for another on a specified date and at a specified rate. These contracts

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are executed on behalf of the Company's customers and are used by customers to manage fluctuations in foreign exchange rates. The Company is subject to the credit risk that another party will fail to perform.

Regions has made use of interest rate swaps in balance sheet hedging strategies to effectively convert a portion of its fixed-rate funding position and available for sale securities portfolios to a variable-rate position and to effectively convert a portion of its variable-rate loan portfolios to fixed-rate. Regions also uses derivatives to economically manage interest rate and pricing risk associated with its mortgage origination business. In the period of time that elapses between the origination and sale of mortgage loans, changes in interest rates have the potential to cause a decline in the value of the loans in this held-for-sale portfolio. Futures contracts and forward sale commitments are used to protect the value of the loan pipeline and loans held for sale from changes in interest rates and pricing.

The following table presents additional information about the hedging interest rate derivatives used by Regions to manage interest rate risk:

Table 19—Hedging Derivatives by Interest Rate Risk Management Strategy

	March 31, 2018
			Weighted-Average
	Notional Amount		Maturity (Years)	Receive Rate		Pay Rate
	(Dollars in millions)
Interest rate swaps:
Derivatives in fair value hedging relationships:
Receive fixed/pay variable	$	3,400	2.8	1.6	%	1.8	%
Receive variable/pay fixed	197		7.4	1.9		2.5
Derivatives in cash flow hedging relationships:
Receive fixed/pay variable	7,825		5.7	1.6		1.8
Total derivatives designated as hedging instruments	$	11,422	4.8	1.6	%	1.8	%

A portion of the cash flow hedging relationships designated above in Table 19 are forward starting, and therefore do not impact, or have limited impact to the estimated annual change in net interest income discussed in Table 18.

Regions manages the credit risk of these instruments in much the same way as it manages credit risk of the loan portfolios by establishing credit limits for each counterparty and through collateral agreements for dealer transactions. For non-dealer transactions, the need for collateral is evaluated on an individual transaction basis and is primarily dependent on the financial strength of the counterparty. Credit risk is also reduced significantly by entering into legally enforceable master netting agreements. When there is more than one transaction with a counterparty and there is a legally enforceable master netting agreement in place, the exposure represents the net of the gain and loss positions with and collateral received from and/or posted to that counterparty. All of interest rate derivatives traded by Regions are subject to mandatory clearing. The counterparty risk for cleared trades effectively moves from the executing broker to the clearinghouse allowing Regions to benefit from the risk mitigation controls in place at the respective clearinghouse. The “Credit Risk” section in Regions’ Annual Report on Form 10-K for the year ended December 31, 2017 contains more information on the management of credit risk.

Regions also uses derivatives to meet the needs of its customers. Interest rate swaps, interest rate options and foreign exchange forwards are the most common derivatives sold to customers. Other derivative instruments with similar characteristics are used to hedge market risk and minimize volatility associated with this portfolio. Instruments used to service customers are held in the trading account, with changes in value recorded in the consolidated statements of income.

The primary objective of Regions’ hedging strategies is to mitigate the impact of interest rate changes, from an economic perspective, on net interest income and other financing income and the net present value of its balance sheet. The overall effectiveness of these hedging strategies is subject to market conditions, the quality of Regions’ execution, the accuracy of its valuation assumptions, counterparty credit risk and changes in interest rates. See Note 10 “Derivative Financial Instruments and Hedging Activities” to the consolidated financial statements for a tabular summary of Regions’ quarter-end derivatives positions and further discussion.

Regions accounts for residential MSRs at fair market value with any changes to fair value being recorded within mortgage income. Regions enters into derivative and balance sheet transactions to economically mitigate the impact of market value fluctuations related to residential MSRs. Derivative instruments entered into in the future could be materially different from the current risk profile of Regions’ current portfolio.

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MARKET RISK—PREPAYMENT RISK

Regions, like most financial institutions, is subject to changing prepayment speeds on mortgage-related assets under different interest rate environments. Prepayment risk is a significant risk to earnings and specifically to net interest income and other financing income. For example, mortgage loans and other financial assets may be prepaid by a debtor, so that the debtor may refinance its obligations at lower rates. As loans and other financial assets prepay in a falling rate environment, Regions must reinvest these funds in lower-yielding assets. Prepayments of assets carrying higher rates reduce Regions’ interest income and overall asset yields. Conversely, in a rising rate environment, these assets will prepay at a slower rate, resulting in opportunity cost by not having the cash flow to reinvest at higher rates. Prepayment risk can also impact the value of securities and the carrying value of equity. Regions’ greatest exposures to prepayment risks primarily rest in its mortgage-backed securities portfolio, the mortgage fixed-rate loan portfolio and the residential MSR, all of which tend to be sensitive to interest rate movements. Each of these assets is also exposed to prepayment risk due to factors which are not necessarily the result of interest rates, but rather due to changes in policies or programs related, either directly or indirectly, to the U.S. Government's governance over certain lending and financing within the mortgage market. Such policies can work to either encourage or discourage financing dynamics and represent a risk that is extremely difficult to forecast and may be the result of non-economic factors. The Company attempts to monitor and manage such exposures within reasonable expectations while acknowledging all such risks cannot be foreseen or avoided. Further, Regions has prepayment risk that would be reflected in non-interest income in the form of servicing income on the residential MSR. Regions actively monitors prepayment exposure as part of its overall net interest income and other financing income forecasting and interest rate risk management.

LIQUIDITY RISK

Liquidity is an important factor in the financial condition of Regions and affects Regions’ ability to meet the borrowing needs and deposit withdrawal requirements of its customers. The liquidity coverage ratio rule is designed to ensure that financial institutions have the necessary assets on hand to withstand short-term liquidity disruptions. See the "Liquidity Coverage Ratio" discussion included in the "Regulatory Requirements" section of Management's Discussion and Analysis for additional information.

Regions intends to fund its obligations primarily through cash generated from normal operations. Regions also has obligations related to potential litigation contingencies. See Note 13 “Commitments, Contingencies and Guarantees” to the consolidated financial statements for additional discussion of the Company’s funding requirements.

Assets, consisting principally of loans and securities, are funded by customer deposits, borrowed funds and stockholders’ equity. Regions’ goal in liquidity management is to satisfy the cash flow requirements of depositors and borrowers, while at the same time meeting the Company’s cash flow needs. Having and using various sources of liquidity to satisfy the Company’s funding requirements is important.

In order to ensure an appropriate level of liquidity is maintained, Regions performs specific procedures including scenario analyses and stress testing at the bank, holding company, and affiliate levels. Regions' liquidity policy requires the holding company to maintain cash sufficient to cover the greater of (1) 18 months of debt service and other cash needs or (2) a minimum cash balance of $500 million. Cash and cash equivalents at the holding company totaled $1.3 billion at March 31, 2018. Compliance with the holding company cash requirements is reported to the Risk Committee of the Board on a quarterly basis. Regions also has minimum liquidity requirements for the Bank and subsidiaries. The Bank's funding and contingency planning does not currently include any reliance on short-term unsecured sources. Risk limits are established within the Company's Liquidity Risk Oversight Committee and ALCO, which regularly reviews compliance with the established limits.

The securities portfolio is one of Regions’ primary sources of liquidity. Proceeds from maturities and principal and interest payments of securities provide a constant flow of funds available for cash needs (see Note 3 “Debt Securities” to the consolidated financial statements). The agency guaranteed mortgage-backed securities portfolio is another source of liquidity in various secured borrowing capacities.

Maturities in the loan portfolio also provide a steady flow of funds. Additional funds are provided from payments on consumer loans and one-to-four family residential first mortgage loans. Regions’ liquidity is further enhanced by its relatively stable customer deposit base. Liquidity needs can also be met by borrowing funds in state and national money markets, although Regions does not currently rely on short-term unsecured wholesale market funding.

The balance with the FRB is the primary component of the balance sheet line item, “interest-bearing deposits in other banks.” At March 31, 2018, Regions had approximately $1.4 billion in cash on deposit with the FRB, a decrease from approximately $1.9 billion at December 31, 2017.

Regions’ borrowing availability with the FRB as of March 31, 2018, based on assets pledged as collateral on that date, was $16.6 billion.

Regions’ financing arrangement with the FHLB adds additional flexibility in managing the Company's liquidity position. As of March 31, 2018, Regions’ outstanding balance of FHLB borrowings was $2.6 billion and its total borrowing capacity from the FHLB totaled $17.3 billion. FHLB borrowing capacity is contingent on the amount of collateral pledged to the FHLB. Regions Bank pledged certain securities, commercial and real estate mortgage loans, residential first mortgage loans on one-to-four family

77

dwellings and home equity lines of credit as collateral for the FHLB advances outstanding. Additionally, investment in FHLB stock is required in relation to the level of outstanding borrowings. Refer to Note 8 "Other Earning Assets" to the consolidated financial statements in the 2017 Annual Report on Form 10-K for additional information. The FHLB has been and is expected to continue to be a reliable and economical source of funding.

Regions maintains a shelf registration statement with the SEC that can be utilized by Regions to issue various debt and/or equity securities. Regions may also issue bank notes from time to time, either as part of a bank note program or as stand-alone issuances. Refer to Note 13 "Long-Term Borrowings" to the consolidated financial statements in the 2017 Annual Report on Form 10-K for additional information.

Regions may, from time to time, consider opportunistically retiring outstanding issued securities, including subordinated debt in privately negotiated or open market transactions for cash or common shares. Regulatory approval would be required for retirement of some instruments.

CREDIT RISK

Regions’ objective regarding credit risk is to maintain a credit portfolio that provides for stable credit costs with acceptable volatility through an economic cycle. Regions has a diversified loan portfolio in terms of product type, collateral and geography. See Table 2 for further details of each loan portfolio segment. See the “Portfolio Characteristics” section of the Annual Report on Form 10-K for the year ended December 31, 2017 for a discussion of risk characteristics of each loan type.

INFORMATION SECURITY RISK

Regions faces a variety of operational risks, including information security risks. Information security risks, such as evolving and adaptive cyber attacks that are conducted regularly against Regions and other large financial institutions to compromise or disable information systems, have generally increased in recent years. This trend is expected to continue for a number of reasons, including the proliferation of new technologies, the increasing use of mobile devices, more financial transactions conducted online, and the increasing sophistication and activities of organized crime, hackers, terrorists, nation-states, activists and other external parties or fraud on the part of employees.

Regions devotes significant financial and non-financial resources to identify and mitigate threats to the confidentiality, availability and integrity of its information systems. Regions regularly assesses the threats and vulnerabilities to its environment so it can update and maintain its systems and controls to effectively mitigate these risks. Layered security controls are designed to complement each other to protect customer information and transactions. Regions will continue to commit the resources necessary to mitigate these growing cyber risks, as well as continue to develop and enhance controls, processes and technology to protect its systems from attacks or unauthorized access. In addition, Regions maintains a strong commitment to a comprehensive risk management program that includes oversight of third-party relationships with vendors. The Board, through its various committees, is briefed at least quarterly on information security matters.

Regions participates in information sharing organizations such as FS-ISAC, to gather and share information with peer banks and other financial institutions to better prepare and protect its information systems from attack. FS-ISAC is a nonprofit organization whose objective is to protect the financial services sector against cyber and physical threats and risk. It acts as a trusted third party that provides anonymity to allow members to submit threat, vulnerability and incident information in a non-attributable and trusted manner so information that would normally not be shared is instead made available to other members for the greater good of the membership. In addition to FS-ISAC, Regions is a member of BITS. BITS serves the financial community and its members by providing industry best practices on a variety of security and fraud topics.

Regions has contracts with vendors to provide denial of service mitigation. These vendors have also committed the necessary resources to support Regions in the event of a cyber event. Even though Regions devotes significant resources to combat cyber security risks, there is no guarantee that these measures will provide absolute security. As an additional security measure, Regions has engaged a computer forensics firm and an industry-leading consulting firm on retainer in case of a cyber event. Furthermore, some of Regions' exposure with respect to data breaches may be offset by applicable insurance.

Even if Regions successfully prevents cyber attacks on to its own network, the Company may still incur losses that result from customers' account information obtained through breaches of retailers' networks where customers have transacted business. The fraud losses, as well as the costs of investigations and re-issuing new customer cards, may impact Regions' financial results. In addition, Regions also relies on some vendors to provide certain components of its business infrastructure, and although Regions actively assesses and monitors the information security capabilities of these vendors, Regions' reliance on them may also increase exposure to information security risk.

In the event of a cyber attack or other data breach, Regions may be required to incur significant expenses, including with respect to remediation costs, costs of implementing additional preventative measures, addressing any reputational harm and addressing any related regulatory inquiries or civil litigation arising from the event.

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PROVISION (CREDIT) FOR LOAN LOSSES

The provision (credit) for loan losses is used to maintain the allowance for loan losses at a level that in management’s judgment is appropriate to absorb probable losses inherent in the portfolio at the balance sheet date. In the first quarter 2018, the (credit) for loan losses totaled $(10) million as compared to the provision of $70 million in the first quarter of 2017. The decrease from the prior period was primarily the result of broad-based improvements in credit metrics, particularly payoffs and paydowns of criticized loans, and a net reduction of $16 million related to to the first quarter of 2018 sale of $254 million in residential first mortgage loans consisting primarily of performing troubled debt restructured loans. Additionally, the (credit) for loan losses was impacted because the Company reduced its hurricane-specific allowance by $30 million during the current quarter.

NON-INTEREST INCOME

Table 20—Non-Interest Income from Continuing Operations

	Three Months Ended March 31					Quarter-to-Date Change 3/31/2018 vs. 3/31//2017
	2018			2017		Amount			Percent
	(Dollars in millions)
Service charges on deposit accounts	$	171		$	168	$	3		1.8	%
Card and ATM fees	104			104		—			—	%
Investment management and trust fee income	58			56		2			3.6	%
Capital markets fee income and other	50			32		18			56.3	%
Mortgage income	38			41		(3		)	(7.3	)%
Bank-owned life insurance	17			19		(2		)	(10.5	)%
Commercial credit fee income	17			18		(1		)	(5.6	)%
Investment services fee income	17			16		1			6.3	%
Market value adjustments on employee benefit assets	(1		)	5		(6		)	(120.0	)%
Other miscellaneous income	36			15		21			140.0	%
	$	507		$	474	$	33		7.0	%

________

NM - Not Meaningful

Service charges on deposit accounts—Service charges on deposit accounts include non-sufficient fund fees and other service charges. The increase during the first quarter of 2018 compared to the same period of 2017 was primarily due to customer account growth and increases in non-sufficient fund fees.

Capital markets fee income and other—Capital markets fee income and other primarily relates to capital raising activities that includes securities underwriting and placement, loan syndication and placement, as well as foreign exchange, derivatives, merger and acquisition and other advisory services. The increase in the first quarter of 2018 compared to the same period in 2017 was primarily due to an increase in income from mergers and acquisitions advisory fees, customer interest rate swap income, and fees generated from the placement of permanent financing for real estate customers.

Other miscellaneous income—Other miscellaneous income includes net revenue from affordable housing, fees from safe deposit boxes, check fees, and other miscellaneous income. Net revenue from affordable housing includes actual gains and losses resulting from the sale of affordable housing investments, cash distributions from the investments and any related impairment charges. Other miscellaneous income increased in the first quarter of 2018 compared to the same period of 2017 primarily due to $7 million in net gains associated with the sale of certain low income housing investments; a $6 million increase to the value of an equity method investment; and $4 million in leveraged lease termination gains all of which occurred during the first quarter of 2018.

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NON-INTEREST EXPENSE

Table 21—Non-Interest Expense from Continuing Operations

	Three Months Ended March 31					Quarter-to-Date Change 3/31/2018 vs 3/31/2017
	2018			2017		Amount			Percent
	(Dollars in millions)
Salaries and employee benefits	$	495		$	461	$	34		7.4	%
Net occupancy expense	83			83		—			—	%
Furniture and equipment expense	81			79		2			2.5	%
Outside services	47			40		7			17.5	%
FDIC insurance assessments	24			27		(3		)	(11.1	)%
Professional, legal and regulatory expenses	27			22		5			22.7	%
Marketing	26			24		2			8.3	%
Branch consolidation, property and equipment charges	3			1		2			200.0	%
Visa class B shares expense	2			3		(1		)	(33.3	)%
Provision (credit) for unfunded credit losses	(4		)	1		(5		)	(500.0	)%
Other miscellaneous expenses	100			102		(2		)	(2.0	)%
	$	884		$	843	$	41		4.9	%

Salaries and employee benefits—Salaries and employee benefits include salaries, incentive compensation, long-term incentives, payroll taxes, and other employee benefits such as 401(k), pension, and medical, life and disability insurance, as well as, expenses from liabilities held for employee benefit purposes. Salaries and employee benefits increased for the first quarter of 2018 compared to the same period in 2017. The primary drivers of the increase were $11 million in higher severance charges and higher production-based incentive expenses, partially offset by staffing reductions. Full-time equivalent headcount from continuing operations decreased to 20,666 at March 31, 2018 from 21,401 at March 31, 2017, reflecting the impact of the Company's efficiency initiatives implemented as part of its three-year strategic plan.

Outside services—Outside services consists of expenses related to routine services provided by third parties, such as contract labor, servicing costs, data processing, loan pricing and research, data license purchases, data subscriptions, and check printing. Outside services increased during the first quarter of 2018 compared to the same period of 2017 primarily due to increased servicing costs related to point-of-sale lending through third parties and additional expenses recorded related to a new Wealth Management platform.

Professional, legal and regulatory expenses—Professional, legal and regulatory expenses consist of amounts related to legal, consulting, other professional fees and regulatory charges. Professional, legal and regulatory expenses increased during the first quarter of 2018 compared to the same period in 2017 due to higher consulting fees.

INCOME TAXES

The Company’s income tax expense from continuing operations for the three months ended March 31, 2018 was $128 million and $127 million for the three months ended March 31, 2017, resulting in effective taxes rates of 23.6 percent and 30.3 percent, respectively. The effective tax rate is lower for the three months ended March 31, 2018 due to Tax Reform enacted in December 2017 that reduced the federal statutory rate from 35 percent to 21 percent effective January 1, 2018. The Company expects the full-year effective tax rate will range from 20 percent to 22 percent for 2018.

The effective tax rate is affected by many factors including, but not limited to, the level of pre-tax income, the mix of income between various tax jurisdictions with differing tax rates, net tax benefits related to affordable housing investments, bank-owned life insurance, tax-exempt interest and nondeductible expenses. In addition, the effective tax rate is affected by items that may occur in any given period but are not consistent from period-to-period, such as the termination of certain leveraged leases, share-based payments, valuation allowance changes and changes to unrecognized tax benefits. Accordingly, the comparability of the effective tax rate between periods may be impacted.

At March 31, 2018, the Company reported a net deferred tax asset of $192 million compared to a net deferred tax asset of $163 million at December 31, 2017. The increase in the net deferred tax asset was primarily due to an increase in the deferred tax asset related to the unrealized losses on available for sale securities and derivative instruments, and was partially offset by an increase in the deferred tax liability related to employee benefits and a decrease in the deferred tax asset related to the allowance for loan losses.

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DISCONTINUED OPERATIONS

On April 4, 2018, Regions entered into a stock purchase agreement to sell Regions Insurance Group, Inc. and related affiliates to BB&T Insurance Holdings, Inc. In connection with the agreement, the results of the entities being sold are reported in the Company's consolidated statements of income separately as discontinued operations for all periods presented because the pending sale met all of the criteria for reporting as discontinuing operations at March 31, 2018. Morgan Keegan was sold on April 2, 2012.

Regions' results from discontinued operations are presented in Note 2 "Discontinued Operations" to the consolidated financial statements. The three months ended March 31, 2018 income from discontinued operations was immaterial and the three months ended March 31, 2017 income from discontinued operations was primarily the result of recoveries of legal expenses related to Morgan Keegan.

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Item 3. Quantitative and Qualitative Disclosures about Market Risk

Reference is made to pages 74 through 77 included in Management’s Discussion and Analysis.

Item 4. Controls and Procedures

Based on an evaluation, as of the end of the period covered by this Form 10-Q, under the supervision and with the participation of Regions’ management, including its Chief Executive Officer and Chief Financial Officer, the Chief Executive Officer and Chief Financial Officer have concluded that Regions’ disclosure controls and procedures (as defined in Rule 13a-15(e) under the Securities Exchange Act of 1934) are effective. During the quarter ended March 31, 2018, there have been no changes in Regions’ internal control over financial reporting that have materially affected, or are reasonably likely to materially affect, Regions’ internal control over financial reporting.

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PART II. OTHER INFORMATION

Item 1. Legal Proceedings

Information required by this item is set forth in Note 13, “Commitments, Contingencies and Guarantees” in the Notes to the Consolidated Financial Statements (Unaudited) in Part I. Item 1. of this report, which is incorporated by reference.

Item 2. Unregistered Sales of Equity Securities and Use of Proceeds

Information concerning Regions’ repurchases of its outstanding common stock during the three month period ended March 31, 2018, is set forth in the following table:

Issuer Purchases of Equity Securities

Period	Total Number of Shares Purchased	Average Price Paid Per Share		Total Number of Shares Purchased as Part of Publicly Announced Plans or Programs	Maximum Approximate Dollar Value of Shares That May Yet Be Purchased Under Publicly Announced Plans or Programs
January 1-31, 2018	2,634,691	$	19.30	2,634,691	$	419,635,678
February 1-28, 2018	9,844,204	$	18.69	9,844,204	$	235,531,015
March 1-31, 2018	—	$	—	—	$	235,531,015
Total 1st Quarter	12,478,895	$	18.82	12,478,895	$	235,531,015

Regions' Board authorized, effective June 28, 2017, a new $1.47 billion common stock repurchase plan, permitting repurchases from the beginning of the third quarter of 2017 through the end of the second quarter of 2018. As of March 31, 2018, Regions had repurchased approximately 78.1 million shares of common stock at a total cost of approximately $1.2 billion under this plan. The Company continued to repurchase shares under this plan in the second quarter of 2018, and as of May 8, 2018, Regions had additional repurchases of approximately 6.9 million shares of common stock at a total cost of approximately $129.1 million. All of these shares were immediately retired upon repurchase and, therefore, will not be included in treasury stock.

Restrictions on Dividends and Repurchase of Stock

Holders of Regions common stock are only entitled to receive such dividends as Regions’ Board may declare out of funds legally available for such payments. Furthermore, holders of Regions common stock are subject to the prior dividend rights of the holders of Regions preferred stock then outstanding.

Regions understands the importance of returning capital to shareholders. Management will continue to execute the capital planning process, including evaluation of the amount of the common dividend, with the Board and in conjunction with the regulatory supervisors, subject to the Company’s results of operations. Also, Regions is a BHC, and its ability to declare and pay dividends is dependent on certain federal regulatory considerations, including the guidelines of the Federal Reserve regarding capital adequacy and dividends.

On November 1, 2012, Regions completed the sale of 20 million depositary shares, each representing a 1/40th ownership interest in a share of its 6.375% Non-Cumulative Perpetual Preferred Stock, Series A, par value $1.00 per share (“Series A Preferred Stock”), with a liquidation preference of $1,000 per share of Series A Preferred Stock (equivalent to $25 per depositary share). The terms of the Series A Preferred Stock prohibit Regions from declaring or paying any dividends on any junior series of its capital stock, including its common stock, or from repurchasing, redeeming or acquiring such junior stock, unless Regions has declared and paid full dividends on the Series A Preferred Stock for the most recently completed dividend period. The Series A Preferred Stock is redeemable at Regions’ option in whole or in part, from time to time, on any dividend payment date on or after December 15, 2017, or in whole, but not in part, at any time within 90 days following a regulatory capital treatment event (as defined in the certificate of designations establishing the Series A Preferred Stock).

On April 29, 2014, Regions completed the sale of 20 million depositary shares, each representing a 1/40th ownership interest in a share of its 6.375% Fixed-to-Floating Rate Non-Cumulative Perpetual Preferred Stock, Series B, par value $1.00 per share (“Series B Preferred Stock”), with a liquidation preference of $1,000 per share of Series B Preferred Stock (equivalent to $25 per depositary share). The terms of the Series B Preferred Stock prohibit Regions from declaring or paying any dividends on any junior series of its capital stock, including its common stock, or from repurchasing, redeeming or acquiring such junior stock, unless Regions has declared and paid full dividends on the Series B Preferred Stock for the most recently completed dividend period. The Series B Preferred Stock is redeemable at Regions’ option in whole or in part, from time to time, on any dividend payment date on or after September 15, 2024, or in whole but not in part, at any time following a regulatory capital treatment event (as defined in the certificate of designations establishing the Series B Preferred Stock).

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Item 6. Exhibits

The following is a list of exhibits including items incorporated by reference

3.1	Amended and Restated Certificate of Incorporation, incorporated by reference to Exhibit 3.1 to Form 10-Q Quarterly Report filed by registrant on August 6, 2012.
3.2	Certificate of Designations, incorporated by reference to Exhibit 3.3 to Form 8-A filed by registrant on November 1, 2012.
3.3	Certificate of Designations, incorporated by reference to Exhibit 3.3 to the Form 8-A filed by registrant on April 28, 2014.
3.4	By-laws as amended and restated, incorporated by reference to Exhibit 3.2 to Form 8-K Current Report filed by registrant on July 27, 2017.
12	Computation of Ratio of Earnings to Fixed Charges.
31.1	Certification of Chief Executive Officer pursuant to Section 302 of the Sarbanes-Oxley Act of 2002.
31.2	Certification of Chief Financial Officer pursuant to Section 302 of the Sarbanes-Oxley Act of 2002.
32	Certification pursuant to 18 U.S.C. Section 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002.
101	Interactive Data File

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SIGNATURES

Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned thereunto duly authorized.

DATE: May 9, 2018	Regions Financial Corporation
	/S/    HARDIE B. KIMBROUGH, JR.
	Hardie B. Kimbrough, Jr. Executive Vice President and Controller (Chief Accounting Officer and Authorized Officer)

85

EX-12

EXHIBIT 12

Regions Financial Corporation

Computation of Ratio of Earnings to Fixed Charges

(from continuing operations)

(Unaudited)

	Three Months Ended March 31
	2018		2017
	(Dollars in millions)
Excluding Interest on Deposits
Income from continuing operations before income taxes	$	542	$	420
Fixed charges excluding preferred stock dividends	86		64
Income for computation excluding interest on deposits	628		484
Interest expense excluding interest on deposits	73		50
One-third of rent expense	13		14
Preferred stock dividends	16		16
Fixed charges including preferred stock dividends	102		80
Ratio of earnings to fixed charges, excluding interest on deposits	6.16x		6.06x
Including Interest on Deposits
Income from continuing operations before income taxes	$	542	$	420
Fixed charges excluding preferred stock dividends	135		99
Income for computation including interest on deposits	677		519
Interest expense including interest on deposits	122		85
One-third of rent expense	13		14
Preferred stock dividends	16		16
Fixed charges including preferred stock dividends	151		115
Ratio of earnings to fixed charges, including interest on deposits	4.49x		4.54x

EX-31.1

EXHIBIT 31.1

CERTIFICATIONS

I, O. B. Grayson Hall, Jr., certify that:

1. I have reviewed this Quarterly Report on Form 10-Q of Regions Financial Corporation;

2. Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of the circumstances under which such statements were made, not misleading with respect to the period covered by this report;

3. Based on my knowledge, the financial statements, and other financial information included in this report, fairly present in all material respects the financial condition, results of operations and cash flows of the registrant as of, and for, the periods presented in this report;

4. The registrant’s other certifying officer(s) and I are responsible for establishing and maintaining disclosure controls and procedures (as defined in Exchange Act Rules 13a-15(e) and 15d-15(e)) and internal control over financial reporting (as defined in Exchange Act Rules 13a-15(f) and 15d-15(f)) for the registrant and have:

a) Designed such disclosure controls and procedures, or caused such disclosure controls and procedures to be designed under our supervision, to ensure that material information relating to the registrant, including its consolidated subsidiaries, is made known to us by others within those entities, particularly during the period in which this report is being prepared;

b) Designed such internal control over financial reporting, or caused such internal control over financial reporting to be designed under our supervision, to provide reasonable assurance regarding the reliability of financial reporting and the preparation of financial statements for external purposes in accordance with generally accepted accounting principles;

c) Evaluated the effectiveness of the registrant’s disclosure controls and procedures and presented in this report our conclusions about the effectiveness of the disclosure controls and procedures, as of the end of the period covered by this report based on such evaluation; and

d) Disclosed in this report any change in the registrant’s internal control over financial reporting that occurred during the registrant’s most recent fiscal quarter (the registrant’s fourth fiscal quarter in the case of an annual report) that has materially affected, or is reasonably likely to materially affect, the registrant’s internal control over financial reporting; and

5. The registrant’s other certifying officer(s) and I have disclosed, based on our most recent evaluation of internal control over financial reporting, to the registrant’s auditors and the audit committee of the registrant’s board of directors (or persons performing the equivalent functions):

a) All significant deficiencies and material weaknesses in the design or operation of internal control over financial reporting which are reasonably likely to adversely affect the registrant’s ability to record, process, summarize and report financial information; and

b) Any fraud, whether or not material, that involves management or other employees who have a significant role in the registrant’s internal control over financial reporting.

Date: May 9, 2018

/S/    O. B. GRAYSON HALL, JR.

O. B. Grayson Hall, Jr.

Chairman and Chief Executive Officer

EX-31.2

EXHIBIT 31.2

CERTIFICATIONS

I, David J. Turner, Jr., certify that:

1. I have reviewed this Quarterly Report on Form 10-Q of Regions Financial Corporation;

2. Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of the circumstances under which such statements were made, not misleading with respect to the period covered by this report;

3. Based on my knowledge, the financial statements, and other financial information included in this report, fairly present in all material respects the financial condition, results of operations and cash flows of the registrant as of, and for, the periods presented in this report;

4. The registrant’s other certifying officer(s) and I are responsible for establishing and maintaining disclosure controls and procedures (as defined in Exchange Act Rules 13a-15(e) and 15d-15(e)) and internal control over financial reporting (as defined in Exchange Act Rules 13a-15(f) and 15d-15(f)) for the registrant and have:

a) Designed such disclosure controls and procedures, or caused such disclosure controls and procedures to be designed under our supervision, to ensure that material information relating to the registrant, including its consolidated subsidiaries, is made known to us by others within those entities, particularly during the period in which this report is being prepared;

b) Designed such internal control over financial reporting, or caused such internal control over financial reporting to be designed under our supervision, to provide reasonable assurance regarding the reliability of financial reporting and the preparation of financial statements for external purposes in accordance with generally accepted accounting principles;

c) Evaluated the effectiveness of the registrant’s disclosure controls and procedures and presented in this report our conclusions about the effectiveness of the disclosure controls and procedures, as of the end of the period covered by this report based on such evaluation; and

d) Disclosed in this report any change in the registrant’s internal control over financial reporting that occurred during the registrant’s most recent fiscal quarter (the registrant’s fourth fiscal quarter in the case of an annual report) that has materially affected, or is reasonably likely to materially affect, the registrant’s internal control over financial reporting; and

5. The registrant’s other certifying officer(s) and I have disclosed, based on our most recent evaluation of internal control over financial reporting, to the registrant’s auditors and the audit committee of the registrant’s board of directors (or persons performing the equivalent functions):

a) All significant deficiencies and material weaknesses in the design or operation of internal control over financial reporting which are reasonably likely to adversely affect the registrant’s ability to record, process, summarize and report financial information; and

b) Any fraud, whether or not material, that involves management or other employees who have a significant role in the registrant’s internal control over financial reporting.

Date: May 9, 2018

/S/    DAVID J. TURNER, JR.

David J. Turner, Jr.

Senior Executive Vice President and

Chief Financial Officer

EX-32

EXHIBIT 32

CERTIFICATION PURSUANT TO

18 U.S.C. SECTION 1350,

AS ADOPTED PURSUANT TO

SECTION 906 OF THE SARBANES-OXLEY ACT OF 2002

In connection with the Quarterly Report of Regions Financial Corporation (the “Company”) on Form 10-Q for the quarter ended March 31, 2018 (the “Report”), I, O. B. Grayson Hall, Jr., Chief Executive Officer of the Company, and David J. Turner, Jr., Chief Financial Officer of the Company, certify, pursuant to 18 U.S.C. § 1350, as adopted pursuant to § 906 of the Sarbanes-Oxley Act of 2002, that to our knowledge:

1) The Report fully complies with the requirements of Section 13(a) or 15(d) of the Securities Exchange Act of 1934; and

2) The information contained in the Report fairly presents, in all material respects, the financial condition and results of operations of the Company.

/S/    O. B. GRAYSON HALL, JR.	/S/    DAVID J. TURNER, JR.
O. B. Grayson Hall, Jr. Chief Executive Officer	David J. Turner, Jr. Chief Financial Officer

DATE: May 9, 2018

A signed original of this written statement required by Section 906, or other document authenticating, acknowledging, or otherwise adopting the signatures that appear in typed form within the electronic version of this written statement required by Section 906, has been provided to Regions Financial Corporation and will be retained by Regions Financial Corporation and furnished to the Securities and Exchange Commission or its staff upon request.

XML

Document and Entity Information - shares	3 Months Ended
	Mar. 31, 2018	May 07, 2018
Document Entity Information [Abstract]
Document Type	10-Q
Amendment Flag	false
Document Period End Date	Mar. 31, 2018
Document Fiscal Year Focus	2018
Document Fiscal Period Focus	Q1
Trading Symbol	RF
Entity Registrant Name	REGIONS FINANCIAL CORP
Entity Central Index Key	0001281761
Current Fiscal Year End Date	--12-31
Entity Filer Category	Large Accelerated Filer
Entity Common Stock, Shares Outstanding		1,123,148,818

XML

CONSOLIDATED BALANCE SHEETS - USD ($) $ in Millions	Mar. 31, 2018	Dec. 31, 2017
Assets
Cash and due from banks	$ 1,766	$ 2,012
Interest-bearing deposits in other banks	1,419	1,899
Federal funds sold and securities purchased under agreements to resell	0	70
Debt Securities held to maturity	1,611	1,658
Available-for-sale Securities, Debt Securities	23,085	23,403
Loans held for sale	452	348
Loans, net of unearned income	79,822	79,947
Allowance for loan losses	(840)	(934)
Net loans	78,982	79,013
Other earning assets	1,640	1,891
Premises and equipment, net	2,065	2,064
Interest receivable	328	337
Goodwill	4,904	4,904
Residential mortgage servicing rights at fair value	356	336
Other identifiable intangible assets	167	177
Other assets	6,138	6,182
Total assets	122,913	124,294
Deposits:
Non-interest-bearing	36,935	36,127
Interest-bearing	60,055	60,762
Total deposits	96,990	96,889
Borrowed funds:
Other short-term borrowings	0	500
Total short-term borrowings	0	500
Long-term borrowings	7,949	8,132
Total borrowed funds	7,949	8,632
Other liabilities	2,108	2,581
Total liabilities	107,047	108,102
Stockholders’ equity:
Preferred stock	820	820
Common stock	12	12
Additional paid-in capital	15,639	15,858
Retained earnings	1,923	1,628
Treasury stock, at cost	(1,377)	(1,377)
Accumulated other comprehensive income (loss), net	(1,151)	(749)
Total stockholders’ equity	15,866	16,192
Total liabilities and stockholders’ equity	$ 122,913	$ 124,294

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CONSOLIDATED BALANCE SHEETS (Parenthetical) - USD ($) $ in Millions	Mar. 31, 2018	Dec. 31, 2017
Debt Securities held to maturity, estimated fair value	$ 1,585	$ 1,667
Loans held for sale	$ 282	$ 325
Common Stock, Par or Stated Value Per Share (in dollars per share)	$ 0.01	$ 0.01
Common Stock, Shares Authorized	3,000,000,000	3,000,000,000
Common Stock, Shares, Issued	1,163,817,064	1,175,327,565
Treasury Stock, Shares	41,259,320	41,259,320
Preferred Stock, Shares Authorized	10,000,000	10,000,000
Preferred Stock, Par Value Per Share (in dollars per share)	$ 1.00	$ 1.00
Noncumulative Preferred Stock [Member]
Preferred Stock, liquidation preference per share (in dollars per share)	$ 1,000	$ 1,000.00
Preferred Stock, shares issued	1,000,000	1,000,000

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CONSOLIDATED STATEMENTS OF INCOME - USD ($) shares in Millions, $ in Millions		3 Months Ended
		Mar. 31, 2018	Mar. 31, 2017
Interest income, including other financing income on:
Loans, including fees		$ 851	$ 773
Debt securities - taxable		154	147
Loans held for sale		3	4
Other earning assets		19	15
Operating lease assets		20	27
Total interest income, including other financing income		1,047	966
Interest expense on:
Deposits		49	35
Short-term Borrowings		1	0
Long-term borrowings		72	50
Total interest expense		122	85
Depreciation expense on operating lease assets		16	22
Total interest expense and depreciation expense on operating lease assets		138	107
Net interest income and other financing income		909	859
Provision (credit) for loan losses		(10)	70
Net interest income and other financing income after provision (credit) for loan losses		919	789
Non-interest income:
Service charges on deposit accounts		171	168
Card and ATM fees		104	104
Investment management and trust fee income		58	56
Mortgage income		38	41
Other		136	105
Total non-interest income		507	474
Non-interest expense:
Salaries and employee benefits		495	461
Net occupancy expense		83	83
Furniture and equipment expense		81	79
Other		225	220
Total non-interest expense		884	843
Income from continuing operations before income taxes		542	420
Income tax expense		128	127
Income from continuing operations		414	293
Discontinued operations:
Income (loss) from discontinued operations before income taxes		0	13
Income tax expense (benefit)		0	5
Income (loss) from discontinued operations, net of tax		0	8
Net income		414	301
Net Income Loss From Continuing Operations Available To Common Stockholders Basic		398	277
Net income available to common shareholders		$ 398	$ 285
Weighted-average number of shares outstanding:
Basic (in shares)		1,127	1,209
Diluted (in shares)		1,141	1,224
Earnings per common share from continuing operations:
Basic (in dollars per share)	[1]	$ 0.35	$ 0.23
Diluted (in dollars per share)	[1]	0.35	0.23
Earnings per common share:
Basic (in dollars per share)	[1]	0.35	0.24
Diluted (in dollars per share)	[1]	0.35	0.23
Cash dividends declared per common share (in dollars per share)		$ 0.09	$ 0.065

[1] Certain per share amounts may not appear to reconcile due to rounding.

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CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2018	Mar. 31, 2017
Statement of Comprehensive Income [Abstract]
Net income	$ 414	$ 301
Unrealized losses on securities transferred to held to maturity:
Unrealized losses on securities transferred to held to maturity during the period, net of tax	0	0
Less: Reclassification Adjustments for Amortization of Unrealized Losses on Securities Transferred to Held to Maturity, Net of Tax	(2)	(2)
Net change in unrealized losses on securities transferred to held to maturity, net of tax	2	2
Unrealized gains (losses) on securities available for sale:
Unrealized holding gains (losses) arising during the period on securities available for sale (net of tax)	(310)	1
Less: reclassification adjustments for securities gains (losses) realized in net income (net of tax)	0	0
Net change in unrealized gains (losses) on securities available for sale, net of tax	(310)	1
Unrealized gains (losses) on derivative instruments designated as cash flow hedges:
Unrealized holding gains (losses) on derivatives arising during the period (net of tax)	(92)	(4)
Other Comprehensive Income (Loss), Reclassification Adjustment from AOCI on Derivatives, Net of Tax	8	19
Net change in unrealized gains (losses) on derivative instruments, net of tax	(100)	(23)
Defined benefit pension plans and other post employment benefits:
Net actuarial gains (losses) arising during the period (net of tax)	(1)	(1)
Other Comprehensive Income (Loss), Defined Benefit Plan, Gain (Loss), Reclassification Adjustment from AOCI, after Tax	(7)	(6)
Net change from defined benefit pension plans and other post employment benefits, net of tax	6	5
Other comprehensive income (loss), net of tax	(402)	(15)
Comprehensive income	$ 12	$ 286

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CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (Parenthetical) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2018	Mar. 31, 2017
Statement of Comprehensive Income [Abstract]
Unrealized losses on securities transferred to held to maturity during the period, tax	$ 0	$ 0
Amortization of unrealized losses on securities transferred to held to maturity, tax	(1)	(1)
Unrealized holding gains (losses) on available for sale securities, tax	(104)	1
Reclassification adjustments for securities gains (losses) realized in net income, tax	0	0
Unrealized holding gains (losses) on derivatives, tax	(31)	(1)
Reclassification adjustments for derivative gains (losses) realized in net income, tax	3	12
Net actuarial gains and losses arising during the period, tax	0	0
Other Comprehensive Income (Loss), Defined Benefit Plan, Gain (Loss), Reclassification Adjustment from AOCI, Tax	$ (2)	$ (3)

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CONSOLIDATED STATEMENTS OF CHANGES IN STOCKHOLDERS' EQUITY - USD ($) shares in Millions, $ in Millions	Total	Preferred Stock [Member]	Common Stock [Member]	Additional Paid-in Capital [Member]	Retained Earnings [Member]	Treasury Stock, At Cost [Member]	Accumulated Other Comprehensive Income (Loss), Net [Member]
Beginning Balance Outstanding (in shares) at Dec. 31, 2016		1.0	1,214.0
Beginning Balance at Dec. 31, 2016	$ 16,664	$ 820	$ 13	$ 17,092	$ 666	$ (1,377)	$ (550)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	301				301
Other comprehensive income (loss), net of tax	(15)						(15)
Cash dividends declared	(78)				(78)
Preferred stock dividends	(16)				(16)
Impact of share repurchase, shares			(10.0)
Impact of share repurchases, value	(150)		$ (1)	(149)
Impact of stock transaction under compensation plans, net, shares			1.0
Impact of stock transaction under compensation plans, net	16			16
Ending Balance Outstanding (in shares) at Mar. 31, 2017		1.0	1,205.0
Ending Balance at Mar. 31, 2017	16,722	$ 820	$ 12	16,959	873	(1,377)	(565)
Beginning Balance Outstanding (in shares) at Dec. 31, 2017		1.0	1,133.0
Beginning Balance at Dec. 31, 2017	16,192	$ 820	$ 12	15,858	1,628	(1,377)	(749)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Cumulative Effect on Retained Earnings, Net of Tax	(2)				(2)
Net income	414				414
Other comprehensive income (loss), net of tax	(402)						(402)
Cash dividends declared	(101)				(101)
Preferred stock dividends	$ (16)				(16)
Impact of share repurchase, shares	(78.1)		(12.0)
Impact of share repurchases, value	$ (235)			(235)
Impact of stock transaction under compensation plans, net, shares			1.0
Impact of stock transaction under compensation plans, net	16			16
Ending Balance Outstanding (in shares) at Mar. 31, 2018		1.0	1,122.0
Ending Balance at Mar. 31, 2018	$ 15,866	$ 820	$ 12	$ 15,639	$ 1,923	$ (1,377)	$ (1,151)

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CONSOLIDATED STATEMENTS OF CHANGES IN STOCKHOLDERS' EQUITY (Parenthetical) - $ / shares	3 Months Ended
	Mar. 31, 2018	Mar. 31, 2017
Statement of Stockholders' Equity [Abstract]
Cash dividend declared (in dollars per share)	$ 0.09	$ 0.065

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CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2018	Mar. 31, 2017
Operating activities:
Net income	$ 414	$ 301
Adjustments to reconcile net income to net cash from operating activities:
Provision (credit) for loan losses	(10)	70
Depreciation, amortization and accretion, net	121	140
Deferred income tax expense	103	62
Originations and purchases of loans held for sale	(690)	(650)
Proceeds from sales of loans held for sale	587	876
(Gain) loss on sale of loans, net	(14)	(24)
Net change in operating assets and liabilities:
Other earning assets	235	51
Interest receivable and other assets	(61)	(28)
Other liabilities	(529)	(79)
Other	(2)	13
Net cash from operating activities	154	732
Investing activities:
Proceeds from maturities of debt securities held to maturity	46	49
Proceeds from Sale of Available-for-sale Securities, Debt	7	429
Proceeds from maturities of debt securities available for sale	798	889
Proceeds from bank-owned life insurance	1	(2)
Purchases of debt securities available for sale	(876)	(1,138)
Purchases of debt securities held to maturity	0	(437)
Proceeds from sales of loans	272	7
Purchases of loans	(70)	(4)
Purchases of mortgage servicing rights	(2)	(8)
Net change in loans	(164)	103
Net purchases of other assets	(56)	(13)
Net cash from investing activities	(44)	(125)
Financing activities:
Net change in deposits	101	389
Net change in short-term borrowings	(500)	0
Proceeds from long-term borrowings	4,350	0
Payments on long-term borrowings	(4,500)	(1,750)
Cash dividends on common stock	(102)	(157)
Cash dividends on preferred stock	(16)	(16)
Repurchases of common stock	(235)	(150)
Payments Related to Tax Withholding for Share-based Compensation	(1)	0
Proceeds from (Payments for) Other Financing Activities	(3)	0
Net cash from financing activities	(906)	(1,684)
Net change in cash and cash equivalents	(796)	(1,077)
Cash and cash equivalents at beginning of year	3,981	5,451
Cash and cash equivalents at end of period	$ 3,185	$ 4,374

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Basis of Presentation

3 Months Ended

Mar. 31, 2018

Organization, Consolidation and Presentation of Financial Statements [Abstract]

Basis of Presentation

BASIS OF PRESENTATION

Regions Financial Corporation (“Regions” or the "Company”) provides a full range of banking and bank-related services to individual and corporate customers through its subsidiaries and branch offices located across the South, Midwest and Texas. The Company competes with other financial institutions located in the states in which it operates, as well as other adjoining states. Regions is subject to the regulations of certain government agencies and undergoes periodic examinations by certain regulatory authorities.

The accounting and reporting policies of Regions and the methods of applying those policies that materially affect the consolidated financial statements conform with GAAP and with general financial services industry practices. The accompanying interim financial statements have been prepared in accordance with the instructions for Form 10-Q and, therefore, do not include all information and notes to the consolidated financial statements necessary for a complete presentation of financial position, results of operations, comprehensive income and cash flows in conformity with GAAP. In the opinion of management, all adjustments, consisting of normal and recurring items, necessary for the fair presentation of the consolidated financial statements have been included. These interim financial statements should be read in conjunction with the consolidated financial statements and notes thereto in Regions’ Annual Report on Form 10-K for the year ended December 31, 2017. Regions has evaluated all subsequent events for potential recognition and disclosure through the filing date of this Form 10-Q. See Note 16.

On April 4, 2018, Regions entered into a stock purchase agreement to sell Regions Insurance Group, Inc. and related affiliates to BB&T Holdings, Inc. The transaction is expected to close in the third quarter of 2018, subject to regulatory approvals and customary closing conditions. Regions sold Morgan Keegan and related affiliates in April 2012. See Note 2, Note 13 and Note 16 for related disclosure.

Effective January 1, 2018, the Company adopted new guidance related to several accounting topics.The cumulative effect of the retrospective application was a total reduction to retained earnings of $2 million, of which the individual components were immaterial. All prior period amounts impacted by guidance that required retrospective application have been revised. See Note 15 for related disclosure.

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Discontinued Operations

3 Months Ended

Mar. 31, 2018

Discontinued Operations and Disposal Groups [Abstract]

Discontinued Operations

DISCONTINUED OPERATIONS

On April 4, 2018, Regions entered into a stock purchase agreement to sell Regions Insurance Group, Inc. and related affiliates to BB&T Insurance Holdings, Inc. The transaction is expected to generate an after-tax gain of approximately $200 million and Common Equity Tier 1 capital of approximately $300 million at closing, which is expected in the third quarter, subject to regulatory approvals and customary closing conditions. The transaction purchase price is not subject to any adjustment that would have a material impact to the consolidated financial statements. See Note 16 for related discussion.

In connection with the agreement, the results of the entities being sold are reported in the Company's consolidated statements of income separately as discontinued operations for all periods presented because the pending sale met all of the criteria for reporting as discontinuing operations at March 31, 2018.

On January 11, 2012, Regions entered into a stock purchase agreement to sell Morgan Keegan and related affiliates to Raymond James. The transaction closed on April 2, 2012. Regions Investment Management, Inc. (formerly known as Morgan Asset Management, Inc.) and Regions Trust were not included in the sale. In connection with the closing of the sale, Regions agreed to indemnify Raymond James for all litigation matters related to pre-closing activities. See Note 13 for related disclosure.

Results of operations for the Morgan Keegan entities sold are presented separately as discontinued operations for all periods presented on the consolidated statements of income. This presentation is consistent with the consolidated financial statements included in the Annual Report on Form 10-K for the year ended December 31, 2017.

The condensed balance sheets for the Regions Insurance Group, Inc. entities being sold are immaterial for disclosure as discontinued operations. The following table represents the condensed results of operations for the Regions Insurance Group, Inc. entities being sold as discontinued operations:

	Three Months Ended March 31
	2018		2017
	(In millions)
Non-interest income:
Insurance commissions and fees	$	34	$	36
Total non-interest income	34		36
Non-interest expense:
Salaries and employee benefits	24		24
Net occupancy expense	1		2
Furniture and equipment expense	1		1
Other	7		7
Total non-interest expense	33		34
Income (loss) from discontinued operations before income taxes	1		2
Income tax expense (benefit)	—		1
Income (loss) from discontinued operations, net of tax	$	1	$	1

The following table represents the condensed results of operations for both the Regions Insurance Group, Inc. entities being sold and Morgan Keegan and Company, Inc. and related affiliates as discontinued operations:

	Three Months Ended March 31
	2018		2017
	(In millions, except per share data)
Income (loss) from discontinued operations before income taxes	$	—	$	13
Income tax expense (benefit)	—		5
Income (loss) from discontinued operations, net of tax	$	—	$	8
Earnings (loss) per common share from discontinued operations:
Basic	$	0.00	$	0.01
Diluted	$	0.00	$	0.01

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Securities

3 Months Ended

Mar. 31, 2018

Investments, Debt and Equity Securities [Abstract]

Securities

SECURITIES

DEBT SECURITIES

The amortized cost, gross unrealized gains and losses, and estimated fair value of debt securities held to maturity and debt securities available for sale are as follows:

	March 31, 2018
			Recognized in OCI (1)							Not Recognized in OCI
	Amortized Cost		Gross Unrealized Gains		Gross Unrealized Losses			Carrying Value		Gross Unrealized Gains		Gross Unrealized Losses			Estimated Fair Value
	(In millions)
Debt securities held to maturity:
Mortgage-backed securities:
Residential agency	$	1,010	$	—	$	(38	)	$	972	$	1	$	(13	)	$	960
Commercial agency	642		—		(3		)	639		—		(14		)	625
	$	1,652	$	—	$	(41	)	$	1,611	$	1	$	(27	)	$	1,585
Debt securities available for sale:
U.S. Treasury securities	$	333	$	—	$	(6	)	$	327						$	327
Federal agency securities	42		—		—			42							42
Mortgage-backed securities:
Residential agency	17,663		23		(534		)	17,152							17,152
Residential non-agency	2		—		—			2							2
Commercial agency	3,742		1		(82		)	3,661							3,661
Commercial non-agency	774		3		(11		)	766							766
Corporate and other debt securities	1,145		8		(18		)	1,135							1,135
	$	23,701	$	35	$	(651	)	$	23,085						$	23,085

	December 31, 2017
			Recognized in OCI (1)							Not Recognized in OCI
	Amortized Cost		Gross Unrealized Gains		Gross Unrealized Losses			Carrying Value		Gross Unrealized Gains		Gross Unrealized Losses			Estimated Fair Value
	(In millions)
Debt securities held to maturity:
Mortgage-backed securities:
Residential agency	$	1,051	$	—	$	(40	)	$	1,011	$	12	$	(4	)	$	1,019
Commercial agency	651		—		(4		)	647		5		(4		)	648
	$	1,702	$	—	$	(44	)	$	1,658	$	17	$	(8	)	$	1,667
Debt securities available for sale:
U.S. Treasury securities	$	333	$	—	$	(2	)	$	331						$	331
Federal agency securities	28		—		—			28							28
Mortgage-backed securities:
Residential agency	17,622		53		(244		)	17,431							17,431
Residential non-agency	3		—		—			3							3
Commercial agency	3,739		5		(30		)	3,714							3,714
Commercial non-agency	787		4		(3		)	788							788
Corporate and other debt securities	1,093		20		(5		)	1,108							1,108
	$	23,605	$	82	$	(284	)	$	23,403						$	23,403

_________

(1) The gross unrealized losses recognized in OCI on securities held to maturity resulted from a transfer of securities available for sale to held to maturity in the second quarter of 2013.

Debt securities with carrying values of $8.3 billion and $8.1 billion at March 31, 2018 and December 31, 2017, respectively, were pledged to secure public funds, trust deposits and certain borrowing arrangements. Included within total pledged securities is approximately $49 million and $50 million of encumbered U.S. Treasury securities at March 31, 2018 and December 31, 2017, respectively.

The amortized cost and estimated fair value of debt securities held to maturity and debt securities available for sale at March 31, 2018, by contractual maturity, are shown below. Expected maturities will differ from contractual maturities because borrowers may have the right to call or prepay obligations with or without call or prepayment penalties.

	Amortized Cost		Estimated Fair Value
	(In millions)
Debt securities held to maturity:
Mortgage-backed securities:
Residential agency	$	1,010	$	960
Commercial agency	642		625
	$	1,652	$	1,585
Debt securities available for sale:
Due in one year or less	$	48	$	48
Due after one year through five years	964		952
Due after five years through ten years	418		414
Due after ten years	90		90
Mortgage-backed securities:
Residential agency	17,663		17,152
Residential non-agency	2		2
Commercial agency	3,742		3,661
Commercial non-agency	774		766
	$	23,701	$	23,085

The following tables present gross unrealized losses and the related estimated fair value of debt securities held to maturity and debt securities available for sale at March 31, 2018 and December 31, 2017. For debt securities transferred to held to maturity from available for sale, the analysis in the tables below is comparing the securities' original amortized cost to its current estimated fair value. These securities are segregated between investments that have been in a continuous unrealized loss position for less than twelve months and for twelve months or more.

	March 31, 2018
	Less Than Twelve Months					Twelve Months or More					Total
	Estimated Fair Value		Gross Unrealized Losses			Estimated Fair Value		Gross Unrealized Losses			Estimated Fair Value		Gross Unrealized Losses
	(In millions)
Debt securities held to maturity:
Mortgage-backed securities:
Residential agency	$	—	$	—		$	960	$	(51	)	$	960	$	(51	)
Commercial agency	485		(8		)	140		(9		)	625		(17		)
	$	485	$	(8	)	$	1,100	$	(60	)	$	1,585	$	(68	)
Debt securities available for sale:
U.S. Treasury securities	$	223	$	(3	)	$	87	$	(3	)	$	310	$	(6	)
Mortgage-backed securities:
Residential agency	7,524		(169		)	7,739		(365		)	15,263		(534		)
Commercial agency	2,600		(50		)	856		(32		)	3,456		(82		)
Commercial non-agency	536		(9		)	59		(2		)	595		(11		)
Corporate and other debt securities	643		(14		)	84		(4		)	727		(18		)
	$	11,526	$	(245	)	$	8,825	$	(406	)	$	20,351	$	(651	)

	December 31, 2017
	Less Than Twelve Months					Twelve Months or More					Total
	Estimated Fair Value		Gross Unrealized Losses			Estimated Fair Value		Gross Unrealized Losses			Estimated Fair Value		Gross Unrealized Losses
	(In millions)
Debt securities held to maturity:
Mortgage-backed securities:
Residential agency	$	—	$	—		$	1,019	$	(32	)	$	1,019	$	(32	)
Commercial agency	—		—			150		(7		)	150		(7		)
	$	—	$	—		$	1,169	$	(39	)	$	1,169	$	(39	)
Debt securities available for sale:
U.S. Treasury securities	$	221	$	(1	)	$	84	$	(1	)	$	305	$	(2	)
Mortgage-backed securities:
Residential agency	5,157		(40		)	8,195		(204		)	13,352		(244		)
Commercial agency	1,666		(10		)	904		(20		)	2,570		(30		)
Commercial non-agency	393		(2		)	61		(1		)	454		(3		)
Corporate and other debt securities	306		(2		)	105		(3		)	411		(5		)
	$	7,743	$	(55	)	$	9,349	$	(229	)	$	17,092	$	(284	)

The number of individual debt positions in an unrealized loss position in the tables above increased from 1,059 at December 31, 2017 to 1,364 at March 31, 2018. The increase in the number of securities and the total amount of unrealized losses from year-end 2017 was primarily due to changes in market interest rates. In instances where an unrealized loss existed, there was no indication of an adverse change in credit on the underlying positions in the tables above. As it relates to these positions, management believes no individual unrealized loss, other than those discussed below, represented an OTTI as of those dates. The Company does not intend to sell, and it is not more likely than not that the Company will be required to sell, the positions before the recovery of their amortized cost basis, which may be at maturity.

As part of the Company's normal process for evaluating OTTI, management did identify a limited number of positions where an OTTI was believed to exist as of March 31, 2018. For the three months ended March 31, 2018, such impairments were immaterial.

Gross realized gains and gross realized losses on sales of debt securities available for sale are shown in the table below. The cost of securities sold is based on the specific identification method.

	Three Months Ended March 31
	2018		2017
	(In millions)
Gross realized gains	$	—	$	1
Gross realized losses	—		(1		)
Debt securities available for sale gains (losses), net	$	—	$	—

EQUITY INVESTMENTS

Effective January 1, 2018, Regions adopted new accounting guidance that requires equity investments to be recorded at fair value with changes in fair value reported in net income. Regions elected a measurement alternative to fair value for certain equity investments without a readily determinable fair value. See Note 15 for related disclosure.

Marketable equity securities carried at fair value, which primarily consist of assets held for certain employee benefits and money market funds, are reported in other earning assets in the consolidated balance sheets. Total marketable equity securities were $525 million and $414 million at March 31, 2018 and December 31, 2017, respectively. Unrealized holding gains and losses for equity securities were immaterial at March 31, 2018.

Equity investments without a readily determinable fair value primarily consist of investments in strategic partners and certain CRA projects. The carrying amount of equity investments measured under the measurement alternative, downward and upward adjustments for impairments and price changes from observable transactions are as follows:

	Three Months Ended March 31, 2018
	(In millions)
Carrying value, December 31, 2017	$	31
Net additions	—
Downward adjustments for price changes and impairment	—
Upward adjustments for price changes(1)	7
Carrying value, March 31, 2018	$	38

_________

(1) Upward adjustments for the three months ended March 31, 2018 related to an observable transaction by the same issuer in an arm's length transaction for a similar ownership interest.

Total cumulative downward adjustments for equity investments without a determinable fair value for impairments and observable price changes were $4 million. Total cumulative upward adjustments for price changes from observable transactions were $7 million as of March 31, 2018.

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Loans and the Allowance for Credit Losses

3 Months Ended

Mar. 31, 2018

Receivables [Abstract]

Loans and the Allowance for Credit Losses

LOANS AND THE ALLOWANCE FOR CREDIT LOSSES

LOANS

The following table presents the distribution of Regions' loan portfolio by segment and class, net of unearned income:

	March 31, 2018		December 31, 2017
	(In millions, net of unearned income)
Commercial and industrial	$	36,787	$	36,115
Commercial real estate mortgage—owner-occupied	6,044		6,193
Commercial real estate construction—owner-occupied	306		332
Total commercial	43,137		42,640
Commercial investor real estate mortgage	3,742		4,062
Commercial investor real estate construction	1,845		1,772
Total investor real estate	5,587		5,834
Residential first mortgage	13,892		14,061
Home equity	9,916		10,164
Indirect—vehicles	3,310		3,326
Indirect—other consumer	1,611		1,467
Consumer credit card	1,237		1,290
Other consumer	1,132		1,165
Total consumer	31,098		31,473
	$	79,822	$	79,947

During the three months ended March 31, 2018 and 2017, Regions purchased approximately $70 million and $4 million in indirect-other consumer loans from third parties, respectively.

During the three months ended March 31, 2018, Regions sold $254 million of residential first mortgage loans consisting primarily of performing troubled debt restructured loans as well as certain non-restructured interest-only loans.

At March 31, 2018, $22.1 billion in securities and net eligible loans held by Regions were pledged to secure current and potential borrowings from the FHLB. At March 31, 2018, an additional $22.1 billion in net eligible loans held by Regions were pledged to the FRB for potential borrowings.

ALLOWANCE FOR CREDIT LOSSES

Regions determines the appropriate level of the allowance on a quarterly basis. Refer to Note 1 “Summary of Significant Accounting Policies” to the consolidated financial statements to the Annual Report on Form 10-K for the year ended December 31, 2017, for a description of the methodology.

ROLLFORWARD OF ALLOWANCE FOR CREDIT LOSSES

The following tables present analyses of the allowance for credit losses by portfolio segment for the three months ended March 31, 2018 and 2017. The total allowance for loan losses and the related loan portfolio ending balances are disaggregated to detail the amounts derived through individual evaluation and collective evaluation for impairment. The allowance for loan losses related to individually evaluated loans is attributable to reserves for non-accrual commercial and investor real estate loans and all TDRs. The allowance for loan losses and the loan portfolio ending balances related to collectively evaluated loans is attributable to the remainder of the portfolio.

	Three Months Ended March 31, 2018
	Commercial			Investor Real Estate			Consumer			Total
	(In millions)
Allowance for loan losses, January 1, 2018	$	591		$	64		$	279		$	934
Provision (credit) for loan losses	(24		)	(4		)	18			(10		)
Loan losses:
Charge-offs	(30		)	(8		)	(74		)	(112		)
Recoveries	10			2			16			28
Net loan losses	(20		)	(6		)	(58		)	(84		)
Allowance for loan losses, March 31, 2018	547			54			239			840
Reserve for unfunded credit commitments, January 1, 2018	49			4			—			53
Provision (credit) for unfunded credit losses	(4		)	—			—			(4		)
Reserve for unfunded credit commitments, March 31, 2018	45			4			—			49
Allowance for credit losses, March 31, 2018	$	592		$	58		$	239		$	889
Portion of ending allowance for loan losses:
Individually evaluated for impairment	$	150		$	10		$	29		$	189
Collectively evaluated for impairment	397			44			210			651
Total allowance for loan losses	$	547		$	54		$	239		$	840
Portion of loan portfolio ending balance:
Individually evaluated for impairment	$	700		$	96		$	476		$	1,272
Collectively evaluated for impairment	42,437			5,491			30,622			78,550
Total loans evaluated for impairment	$	43,137		$	5,587		$	31,098		$	79,822

	Three Months Ended March 31, 2017
	Commercial			Investor Real Estate			Consumer			Total
	(In millions)
Allowance for loan losses, January 1, 2017	$	753		$	85		$	253		$	1,091
Provision (credit) for loan losses	26			1			43			70
Loan losses:
Charge-offs	(58		)	(1		)	(65		)	(124		)
Recoveries	6			2			16			24
Net loan losses	(52		)	1			(49		)	(100		)
Allowance for loan losses, March 31, 2017	727			87			247			1,061
Reserve for unfunded credit commitments, January 1, 2017	64			5			—			69
Provision (credit) for unfunded credit losses	2			(1		)	—			1
Reserve for unfunded credit commitments, March 31, 2017	66			4			—			70
Allowance for credit losses, March 31, 2017	$	793		$	91		$	247		$	1,131
Portion of ending allowance for loan losses:
Individually evaluated for impairment	$	228		$	17		$	56		$	301
Collectively evaluated for impairment	499			70			191			760
Total allowance for loan losses	$	727		$	87		$	247		$	1,061
Portion of loan portfolio ending balance:
Individually evaluated for impairment	$	1,103		$	126		$	760		$	1,989
Collectively evaluated for impairment	41,139			6,356			30,385			77,880
Total loans evaluated for impairment	$	42,242		$	6,482		$	31,145		$	79,869

PORTFOLIO SEGMENT RISK FACTORS

The following describe the risk characteristics relevant to each of the portfolio segments.

Commercial—The commercial loan portfolio segment includes commercial and industrial loans to commercial customers for use in normal business operations to finance working capital needs, equipment purchases or other expansion projects. Commercial also includes owner-occupied commercial real estate mortgage loans to operating businesses, which are loans for long-term financing of land and buildings, and are repaid by cash flow generated by business operations. Owner-occupied construction loans are made to commercial businesses for the development of land or construction of a building where the repayment is derived from revenues generated from the business of the borrower. Collection risk in this portfolio is driven by the creditworthiness of underlying borrowers, particularly cash flow from customers’ business operations, and the sensitivity to market fluctuations in commodity prices.

Investor Real Estate—Loans for real estate development are repaid through cash flow related to the operation, sale or refinance of the property. This portfolio segment includes extensions of credit to real estate developers or investors where repayment is dependent on the sale of real estate or income generated from the real estate collateral. A portion of Regions’ investor real estate portfolio segment consists of loans secured by residential product types (land, single-family and condominium loans) within Regions’ markets. Additionally, these loans are made to finance income-producing properties such as apartment buildings, office and industrial buildings, and retail shopping centers. Loans in this portfolio segment are particularly sensitive to the valuation of real estate.

Consumer—The consumer loan portfolio segment includes residential first mortgage, home equity, indirect-vehicles, indirect-other consumer, consumer credit card, and other consumer loans. Residential first mortgage loans represent loans to consumers to finance a residence. These loans are typically financed over a 15 to 30 year term and, in most cases, are extended to borrowers to finance their primary residence. Home equity lending includes both home equity loans and lines of credit. This type of lending, which is secured by a first or second mortgage on the borrower’s residence, allows customers to borrow against the equity in their home. Real estate market values as of the time the loan or line is secured directly affect the amount of credit extended and, in addition, changes in these values impact the depth of potential losses. Indirect-vehicles lending, which is lending initiated through third-party business partners, largely consists of loans made through automotive dealerships. Indirect-other consumer lending represents other point of sale lending through third parties. Consumer credit card includes Regions branded consumer credit card accounts. Other consumer loans include other revolving consumer accounts, direct consumer loans, and overdrafts. Loans in this portfolio segment are sensitive to unemployment and other key consumer economic measures.

CREDIT QUALITY INDICATORS

The following tables present credit quality indicators for the loan portfolio segments and classes, excluding loans held for sale, as of March 31, 2018, and December 31, 2017. Commercial and investor real estate loan portfolio segments are detailed by categories related to underlying credit quality and probability of default. Regions assigns these categories at loan origination and reviews the relationship utilizing a risk-based approach on, at minimum, an annual basis or at any time management becomes aware of information affecting the borrowers' ability to fulfill their obligations. Both quantitative and qualitative factors are considered in this review process. These categories are utilized to develop the associated allowance for credit losses.

• Pass—includes obligations where the probability of default is considered low;

• Special Mention—includes obligations that have potential weakness that may, if not reversed or corrected, weaken the credit or inadequately protect the Company’s position at some future date. Obligations in this category may also be subject to economic or market conditions that may, in the future, have an adverse effect on debt service ability;

• Substandard Accrual—includes obligations that exhibit a well-defined weakness that presently jeopardizes debt repayment, even though they are currently performing. These obligations are characterized by the distinct possibility that the Company may incur a loss in the future if these weaknesses are not corrected;

• Non-accrual—includes obligations where management has determined that full payment of principal and interest is in doubt.

Substandard accrual and non-accrual loans are often collectively referred to as “classified.” Special mention, substandard accrual, and non-accrual loans are often collectively referred to as “criticized and classified.” Classes in the consumer portfolio segment are disaggregated by accrual status.

	March 31, 2018
	Pass		Special  Mention		Substandard Accrual		Non-accrual		Total
	(In millions)
Commercial and industrial	$	35,216	$	609	$	598	$	364	$	36,787
Commercial real estate mortgage—owner-occupied	5,558		250		134		102		6,044
Commercial real estate construction—owner-occupied	288		3		10		5		306
Total commercial	$	41,062	$	862	$	742	$	471	$	43,137
Commercial investor real estate mortgage	$	3,646	$	48	$	34	$	14	$	3,742
Commercial investor real estate construction	1,793		15		37		—		1,845
Total investor real estate	$	5,439	$	63	$	71	$	14	$	5,587
					Accrual		Non-accrual		Total
					(In millions)
Residential first mortgage					$	13,845	$	47	$	13,892
Home equity					9,847		69		9,916
Indirect—vehicles					3,310		—		3,310
Indirect—other consumer					1,611		—		1,611
Consumer credit card					1,237		—		1,237
Other consumer					1,132		—		1,132
Total consumer					$	30,982	$	116	$	31,098
									$	79,822

	December 31, 2017
	Pass		Special Mention		Substandard Accrual		Non-accrual		Total
	(In millions)
Commercial and industrial	$	34,420	$	686	$	605	$	404	$	36,115
Commercial real estate mortgage—owner-occupied	5,674		236		165		118		6,193
Commercial real estate construction—owner-occupied	313		3		10		6		332
Total commercial	$	40,407	$	925	$	780	$	528	$	42,640
Commercial investor real estate mortgage	$	3,905	$	63	$	89	$	5	$	4,062
Commercial investor real estate construction	1,706		19		46		1		1,772
Total investor real estate	$	5,611	$	82	$	135	$	6	$	5,834
					Accrual		Non-accrual		Total
					(In millions)
Residential first mortgage					$	14,014	$	47	$	14,061
Home equity					10,095		69		10,164
Indirect—vehicles					3,326		—		3,326
Indirect—other consumer					1,467		—		1,467
Consumer credit card					1,290		—		1,290
Other consumer					1,165		—		1,165
Total consumer					$	31,357	$	116	$	31,473
									$	79,947

AGING ANALYSIS

The following tables include an aging analysis of DPD for each portfolio segment and class as of March 31, 2018 and December 31, 2017:

	March 31, 2018
	Accrual Loans
	30-59 DPD		60-89 DPD		90+ DPD		Total 30+ DPD		Total Accrual		Non-accrual		Total
	(In millions)
Commercial and industrial	$	42	$	28	$	5	$	75	$	36,423	$	364	$	36,787
Commercial real estate mortgage—owner-occupied	25		3		1		29		5,942		102		6,044
Commercial real estate construction—owner-occupied	—		—		—		—		301		5		306
Total commercial	67		31		6		104		42,666		471		43,137
Commercial investor real estate mortgage	1		—		—		1		3,728		14		3,742
Commercial investor real estate construction	—		29		—		29		1,845		—		1,845
Total investor real estate	1		29		—		30		5,573		14		5,587
Residential first mortgage	78		42		196		316		13,845		47		13,892
Home equity	62		22		33		117		9,847		69		9,916
Indirect—vehicles	39		10		8		57		3,310		—		3,310
Indirect—other consumer	8		5		—		13		1,611		—		1,611
Consumer credit card	10		7		17		34		1,237		—		1,237
Other consumer	11		4		5		20		1,132		—		1,132
Total consumer	208		90		259		557		30,982		116		31,098
	$	276	$	150	$	265	$	691	$	79,221	$	601	$	79,822

	December 31, 2017
	Accrual Loans
	30-59 DPD		60-89 DPD		90+ DPD		Total 30+ DPD		Total Accrual		Non-accrual		Total
	(In millions)
Commercial and industrial	$	28	$	7	$	4	$	39	$	35,711	$	404	$	36,115
Commercial real estate mortgage—owner-occupied	18		8		1		27		6,075		118		6,193
Commercial real estate construction—owner-occupied	—		—		—		—		326		6		332
Total commercial	46		15		5		66		42,112		528		42,640
Commercial investor real estate mortgage	1		1		1		3		4,057		5		4,062
Commercial investor real estate construction	—		—		—		—		1,771		1		1,772
Total investor real estate	1		1		1		3		5,828		6		5,834
Residential first mortgage	95		85		216		396		14,014		47		14,061
Home equity	53		27		37		117		10,095		69		10,164
Indirect—vehicles	48		13		9		70		3,326		—		3,326
Indirect—other consumer	9		5		—		14		1,467		—		1,467
Consumer credit card	11		7		19		37		1,290		—		1,290
Other consumer	13		4		4		21		1,165		—		1,165
Total consumer	229		141		285		655		31,357		116		31,473
	$	276	$	157	$	291	$	724	$	79,297	$	650	$	79,947

IMPAIRED LOANS

The following tables present details related to the Company’s impaired loans as of March 31, 2018 and December 31, 2017. Loans deemed to be impaired include all TDRs and all non-accrual commercial and investor real estate loans, excluding leases. Loans that have been fully charged-off do not appear in the tables below.

	Non-accrual Impaired Loans As of March 31, 3018
					Book Value(3)
	Unpaid Principal Balance(1)		Charge-offs and Payments Applied(2)		Total Impaired Loans on Non-accrual Status		Impaired Loans on Non-accrual Status with No Related Allowance		Impaired Loans on Non-accrual Status with Related Allowance		Related Allowance for Loan Losses		Coverage %(4)
	(Dollars in millions)
Commercial and industrial	$	441	$	81	$	360	$	31	$	329	$	89	38.5	%
Commercial real estate mortgage—owner-occupied	113		11		102		18		84		33		38.9
Commercial real estate construction—owner-occupied	5		—		5		—		5		2		40.0
Total commercial	559		92		467		49		418		124		38.6
Commercial investor real estate mortgage	22		8		14		1		13		5		59.1
Commercial investor real estate construction	1		1		—		—		—		—		100.0
Total investor real estate	23		9		14		1		13		5		60.9
Residential first mortgage	41		10		31		—		31		3		31.7
Home equity	10		1		9		—		9		—		10.0
Total consumer	51		11		40		—		40		3		27.5
	$	633	$	112	$	521	$	50	$	471	$	132	38.5	%

	Accruing Impaired Loans As of March 31, 2018
	Unpaid Principal Balance(1)		Charge-offs and Payments Applied(2)		Book Value(3)		Related Allowance for Loan Losses		Coverage %(4)
	(Dollars in millions)
Commercial and industrial	$	181	$	7	$	174	$	22	16.0	%
Commercial real estate mortgage—owner-occupied	63		5		58		4		14.3
Commercial real estate construction—owner-occupied	1		—		1		—		—
Total commercial	245		12		233		26		15.5
Commercial investor real estate mortgage	55		2		53		2		7.3
Commercial investor real estate construction	29		—		29		3		10.3
Total investor real estate	84		2		82		5		8.3
Residential first mortgage	194		6		188		18		12.4
Home equity	240		1		239		8		3.8
Consumer credit card	1		—		1		—		—
Other consumer	8		—		8		—		—
Total consumer	443		7		436		26		7.4
	$	772	$	21	$	751	$	57	10.1	%

	Total Impaired Loans As of March 31, 2018
					Book Value(3)
	Unpaid Principal Balance(1)		Charge-offs and Payments Applied(2)		Total Impaired Loans		Impaired Loans with No Related Allowance		Impaired Loans with Related Allowance		Related Allowance for Loan Losses		Coverage %(4)
	(Dollars in millions)
Commercial and industrial	$	622	$	88	$	534	$	31	$	503	$	111	32.0	%
Commercial real estate mortgage—owner-occupied	176		16		160		18		142		37		30.1
Commercial real estate construction—owner-occupied	6		—		6		—		6		2		33.3
Total commercial	804		104		700		49		651		150		31.6
Commercial investor real estate mortgage	77		10		67		1		66		7		22.1
Commercial investor real estate construction	30		1		29		—		29		3		13.3
Total investor real estate	107		11		96		1		95		10		19.6
Residential first mortgage	235		16		219		—		219		21		15.7
Home equity	250		2		248		—		248		8		4.0
Consumer credit card	1		—		1		—		1		—		—
Other consumer	8		—		8		—		8		—		—
Total consumer	494		18		476		—		476		29		9.5
	$	1,405	$	133	$	1,272	$	50	$	1,222	$	189	22.9	%

	Non-accrual Impaired Loans As of December 31, 2017
					Book Value(3)
	Unpaid Principal Balance(1)		Charge-offs and Payments Applied(2)		Total Impaired Loans on Non-accrual Status		Impaired Loans on Non-accrual Status with No Related Allowance		Impaired Loans on Non-accrual Status with Related Allowance		Related Allowance for Loan Losses		Coverage %(4)
	(Dollars in millions)
Commercial and industrial	$	480	$	80	$	400	$	29	$	371	$	103	38.1	%
Commercial real estate mortgage—owner-occupied	133		15		118		20		98		38		39.8
Commercial real estate construction—owner-occupied	7		1		6		—		6		3		57.1
Total commercial	620		96		524		49		475		144		38.7
Commercial investor real estate mortgage	6		1		5		—		5		2		50.0
Commercial investor real estate construction	1		—		1		—		1		—		—
Total investor real estate	7		1		6		—		6		2		42.9
Residential first mortgage	42		11		31		—		31		3		33.3
Home equity	10		1		9		—		9		—		10.0
Total consumer	52		12		40		—		40		3		28.8
	$	679	$	109	$	570	$	49	$	521	$	149	38.0	%

	Accruing Impaired Loans As of December 31, 2017
					Book Value(3)
	Unpaid Principal Balance(1)		Charge-offs and Payments Applied(2)		Total Impaired Loans on Accrual Status		Impaired Loans on Accrual Status with No Related Allowance		Impaired Loans on Accrual Status with Related Allowance		Related Allowance for Loan Losses		Coverage %(4)
	(Dollars in millions)
Commercial and industrial	$	154	$	8	$	146	$	1	$	145	$	19	17.5	%
Commercial real estate mortgage—owner-occupied	90		5		85		—		85		8		14.4
Commercial real estate construction—owner-occupied	1		—		1		—		1		—		—
Total commercial	245		13		232		1		231		27		16.3
Commercial investor real estate mortgage	63		2		61		—		61		3		7.9
Commercial investor real estate construction	29		—		29		—		29		3		10.3
Total investor real estate	92		2		90		—		90		6		8.7
Residential first mortgage	419		13		406		—		406		39		12.4
Home equity	251		1		250		—		250		5		2.4
Consumer credit card	1		—		1		—		1		—		—
Other consumer	9		—		9		—		9		—		—
Total consumer	680		14		666		—		666		44		8.5
	$	1,017	$	29	$	988	$	1	$	987	$	77	10.4	%

	Total Impaired Loans As of December 31, 2017
					Book Value(3)
	Unpaid Principal Balance(1)		Charge-offs and Payments Applied(2)		Total Impaired Loans		Impaired Loans with No Related Allowance		Impaired Loans with Related Allowance		Related Allowance for Loan Losses		Coverage %(4)
	(Dollars in millions)
Commercial and industrial	$	634	$	88	$	546	$	30	$	516	$	122	33.1	%
Commercial real estate mortgage—owner-occupied	223		20		203		20		183		46		29.6
Commercial real estate construction—owner-occupied	8		1		7		—		7		3		50.0
Total commercial	865		109		756		50		706		171		32.4
Commercial investor real estate mortgage	69		3		66		—		66		5		11.6
Commercial investor real estate construction	30		—		30		—		30		3		10.0
Total investor real estate	99		3		96		—		96		8		11.1
Residential first mortgage	461		24		437		—		437		42		14.3
Home equity	261		2		259		—		259		5		2.7
Consumer credit card	1		—		1		—		1		—		—
Other consumer	9		—		9		—		9		—		—
Total consumer	732		26		706		—		706		47		10.0
	$	1,696	$	138	$	1,558	$	50	$	1,508	$	226	21.5	%

________

(1) Unpaid principal balance represents the contractual obligation due from the customer and includes the net book value plus charge-offs and payments applied.

(2) Charge-offs and payments applied represents cumulative partial charge-offs taken, as well as interest payments received that have been applied against the outstanding principal balance.

(3) Book value represents the unpaid principal balance less charge-offs and payments applied; it is shown before any allowance for loan losses.

(4) Coverage % represents charge-offs and payments applied plus the related allowance as a percent of the unpaid principal balance.

The following table presents the average balances of total impaired loans and interest income for the three months ended March 31, 2018 and 2017. Interest income recognized represents interest on accruing loans modified in a TDR.

	Three Months Ended March 31
	2018				2017
	Average Balance		Interest Income Recognized		Average Balance		Interest Income Recognized
	(In millions)
Commercial and industrial	$	533	$	3	$	819	$	2
Commercial real estate mortgage—owner-occupied	166		3		264		1
Commercial real estate construction—owner-occupied	6		—		6		—
Total commercial	705		6		1,089		3
Commercial investor real estate mortgage	76		1		91		1
Commercial investor real estate construction	30		—		33		—
Total investor real estate	106		1		124		1
Residential first mortgage	288		2		455		4
Home equity	252		3		295		4
Consumer credit card	1		—		2		—
Other consumer	8		—		10		—
Total consumer	549		5		762		8
Total impaired loans	$	1,360	$	12	$	1,975	$	12

TROUBLED DEBT RESTRUCTURINGS

Regions regularly modifies commercial and investor real estate loans in order to facilitate a workout strategy. Similarly, Regions works to meet the individual needs of consumer borrowers to stem foreclosure through its CAP. Refer to Note 6 "Allowance For Credit Losses" in the 2017 Annual Report on Form 10-K for additional information regarding the Company's TDRs.

Further discussion related to TDRs, including their impact on the allowance for loan losses and designation of TDRs in periods subsequent to the modification is included in Note 1 "Summary of Significant Accounting Policies" in the 2017 Annual Report on Form 10-K.

The following tables present the end of period balance for loans modified in a TDR during the periods presented by portfolio segment and class, and the financial impact of those modifications. The tables include modifications made to new TDRs, as well as renewals of existing TDRs. Loans first reported as TDRs during the three months ended March 31, 2018 and 2017 totaled approximately $171 million and $128 million, respectively.

	Three Months Ended March 31, 2018
				Financial Impact of Modifications Considered TDRs
	Number of Obligors	Recorded Investment		Increase in Allowance at Modification
	(Dollars in millions)
Commercial and industrial	29	$	164	$	2
Commercial real estate mortgage—owner-occupied	18	14		—
Total commercial	47	178		2
Commercial investor real estate mortgage	10	19		1
Total investor real estate	10	19		1
Residential first mortgage	53	8		1
Home equity	17	1		—
Consumer credit card	14	—		—
Indirect—vehicles and other consumer	13	—		—
Total consumer	97	9		1
	154	$	206	$	4

	Three Months Ended March 31, 2017
				Financial Impact of Modifications Considered TDRs
	Number of Obligors	Recorded Investment		Increase in Allowance at Modification
	(Dollars in millions)
Commercial and industrial	31	$	99	$	3
Commercial real estate mortgage—owner-occupied	31	28		1
Commercial real estate construction—owner-occupied	2	1		—
Total commercial	64	128		4
Commercial investor real estate mortgage	12	19		—
Commercial investor real estate construction	3	26		1
Total investor real estate	15	45		1
Residential first mortgage	49	8		1
Home equity	58	5		—
Consumer credit card	19	—		—
Indirect—vehicles and other consumer	47	1		—
Total consumer	173	14		1
	252	$	187	$	6

TDRs that defaulted during the three months ended March 31, 2018 and 2017, and that were modified in the previous twelve months (i.e., the twelve months prior to the default) were immaterial. At March 31, 2018, approximately $118 million of commercial and investor real estate loans modified in a TDR during the three months ended March 31, 2018 were on non-accrual status.

At March 31, 2018, Regions had restructured binding unfunded commitments totaling $21 million where a concession was granted and the borrower was in financial difficulty.

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Servicing of Financial Assets

3 Months Ended

Mar. 31, 2018

Transfers and Servicing of Financial Assets [Abstract]

Servicing of Financial Assets

SERVICING OF FINANCIAL ASSETS

RESIDENTIAL MORTGAGE BANKING ACTIVITIES

The fair value of residential MSRs is calculated using various assumptions including future cash flows, market discount rates, expected prepayment rates, servicing costs and other factors. A significant change in prepayments of mortgages in the servicing portfolio could result in significant changes in the valuation adjustments, thus creating potential volatility in the carrying amount of residential MSRs. The Company compares fair value estimates and assumptions to observable market data where available, and also considers recent market activity and actual portfolio experience.

The table below presents an analysis of residential MSRs under the fair value measurement method:

	Three Months Ended March 31
	2018			2017
	(In millions)
Carrying value, beginning of period	$	336		$	324
Additions	8			8
Increase (decrease) in fair value:
Due to change in valuation inputs or assumptions	22			4
Economic amortization associated with borrower repayments (1)	(10		)	(10		)
Carrying value, end of period	$	356		$	326

________

(1) "Economic amortization associated with borrower repayments" includes both total loan payoffs as well as partial paydowns.

On April 28, 2017, the Company purchased the rights to service approximately $2.7 billion in residential mortgage loans for approximately $30 million.

Data and assumptions used in the fair value calculation, as well as the valuation’s sensitivity to rate fluctuations, related to residential MSRs (excluding related derivative instruments) are as follows:

	March 31
	2018			2017
	(Dollars in millions)
Unpaid principal balance	$	31,641		$	30,960
Weighted-average CPR (%)	9.0		%	7.6		%
Estimated impact on fair value of a 10% increase	$	(24	)	$	(19	)
Estimated impact on fair value of a 20% increase	$	(43	)	$	(34	)
Option-adjusted spread (basis points)	842			1,058
Estimated impact on fair value of a 10% increase	$	(12	)	$	(13	)
Estimated impact on fair value of a 20% increase	$	(24	)	$	(27	)
Weighted-average coupon interest rate	4.1		%	4.2		%
Weighted-average remaining maturity (months)	280			280
Weighted-average servicing fee (basis points)	27.3			27.4

The sensitivity calculations above are hypothetical and should not be considered to be predictive of future performance. Changes in fair value based on adverse changes in assumptions generally cannot be extrapolated because the relationship of the change in assumption to the change in fair value may not be linear. Also, the effect of an adverse variation in a particular assumption on the fair value of residential MSRs is calculated without changing any other assumption, while in reality changes in one factor may result in changes in another, which may either magnify or counteract the effect of the change. The derivative instruments utilized by Regions would serve to reduce the estimated impacts to fair value included in the table above.

The following table presents servicing related fees, which includes contractually specified servicing fees, late fees and other ancillary income resulting from the servicing of residential mortgage loans:

	Three Months Ended March 31
	2018		2017
	(In millions)
Servicing related fees and other ancillary income	$	23	$	23

Residential mortgage loans are sold in the secondary market with standard representations and warranties regarding certain characteristics such as the quality of the loan, the absence of fraud, the eligibility of the loan for sale and the future servicing associated with the loan. Regions may be required to repurchase these loans at par, or make-whole or indemnify the purchasers for losses incurred when representations and warranties are breached.

Regions maintains an immaterial repurchase liability related to residential mortgage loans sold with representations and warranty provisions. This repurchase liability is reported in other liabilities on the consolidated balance sheets and reflects management’s estimate of losses based on historical repurchase and loss trends, as well as other factors that may result in anticipated losses different from historical loss trends. Adjustments to this reserve are recorded in other non-interest expense on the consolidated statements of income.

COMMERCIAL MORTGAGE BANKING ACTIVITIES

Regions is an approved DUS lender. The DUS program provides liquidity to the multi-family housing market. In connection with the DUS program, Regions services commercial loans, retains commercial MSRs and intangible assets associated with the DUS license, and assumes a loss share guarantee associated with the loans. See Note 1 "Summary of Significant Accounting Policies" in the 2017 Annual Report on Form 10-K for additional information. Also see Note 13 herein for additional information related to the guarantee.

As of March 31, 2018 and December 31, 2017, the DUS servicing portfolio was approximately $2.8 billion and $2.9 billion, respectively. The related commercial MSRs were valued at approximately $47 million and $48 million at March 31, 2018 and December 31, 2017, respectively. The estimated fair value of the loss share guarantee was valued at approximately $4 million at both March 31, 2018 and December 31, 2017.

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Goodwill

3 Months Ended

Mar. 31, 2018

Goodwill and Intangible Assets Disclosure [Abstract]

Goodwill

GOODWILL

Goodwill allocated to each reportable segment (each a reporting unit) is presented as follows:

	March 31, 2018		December 31, 2017
	(In millions)
Corporate Bank	$	2,474	$	2,474
Consumer Bank	1,978		1,978
Wealth Management	452		452
	$	4,904	$	4,904

Regions evaluates each reporting unit’s goodwill for impairment on an annual basis in the fourth quarter, or more often if events or circumstances change that would more likely than not reduce the fair value of a reporting unit below its carrying value. A detailed description of the Company’s methodology and valuation approaches used to determine the estimated fair value of each reporting unit is included in the consolidated financial statements of the Annual Report on Form 10-K for the year ended December 31, 2017. Adverse changes in the economic environment, declining operations, or other factors could result in a decline in the implied fair value of goodwill.

During the first quarter of 2018, Regions assessed events and circumstances for all three reporting units as of March 31, 2018, and through the date of the filing of this Quarterly Report on Form 10-Q that could potentially indicate goodwill impairment. The indicators assessed included:

• Recent operating performance,

• Changes in market capitalization,

• Regulatory actions and assessments,

• Changes in the business climate (including legislation, legal factors, and competition),

• Company-specific factors (including changes in key personnel, asset impairments, and business dispositions), and

• Trends in the banking industry.

After assessing the indicators noted above, Regions determined that it was not more likely than not that the fair value of each of its reporting units had declined below their carrying value as of March 31, 2018. Therefore, Regions determined that a test of goodwill impairment was not required for each of Regions’ reporting units for the March 31, 2018 interim period.

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Stockholders' Equity and Accumulated Other Comprehensive Income (Loss)

3 Months Ended

Mar. 31, 2018

Equity [Abstract]

Stockholders' Equity and Accumulated Other Comprehensive Income (Loss)

STOCKHOLDERS’ EQUITY AND ACCUMULATED OTHER COMPREHENSIVE INCOME (LOSS)

PREFERRED STOCK

The following table presents a summary of the non-cumulative perpetual preferred stock:

								March 31, 2018		December 31, 2017
	Issuance Date	Earliest Redemption Date	Dividend Rate			Liquidation Amount		Carrying Amount		Carrying Amount
	(Dollars in millions)
Series A	11/1/2012	12/15/2017	6.375	%		$	500	$	387	$	387
Series B	4/29/2014	9/15/2024	6.375	%	(1)	500		433		433
						$	1,000	$	820	$	820

_________

(1) Dividends, if declared, will be paid quarterly at an annual rate equal to (i) for each period beginning prior to September 15, 2024, 6.375%, and (ii) for each period beginning on or after September 15, 2024, three-month LIBOR plus 3.536%.

For each preferred stock issuance listed above, Regions issued depositary shares, each representing a 1/40th ownership interest in a share of the Company's preferred stock, with a liquidation preference of $1,000.00 per share of preferred stock (equivalent to $25.00 per depositary share). Dividends on the preferred stock, if declared, accrue and are payable quarterly in arrears. The preferred stock has no stated maturity and redemption is solely at Regions' option, subject to regulatory approval, in whole, or in part, after the earliest redemption date or in whole, but not in part, within 90 days following a regulatory capital treatment event for the Series A preferred stock or at any time following a regulatory capital treatment event for the Series B preferred stock.

The Board of Directors declared $8 million in cash dividends on both Series A and Series B Preferred Stock during the first three months of 2018 and 2017.

In the event Series A and Series B preferred shares are redeemed at the liquidation amounts, $113 million and $67 million excess of the redemption amount over the carrying amount will be recognized, respectively. Approximately $100 million of Series A preferred dividends that were recorded as a reduction of preferred stock, including related surplus, will be recorded as a reduction to retained earnings, and approximately $13 million of related issuance costs that were recorded as a reduction of preferred stock, including related surplus, will be recorded as a reduction to net income available to common shareholders. Approximately $52 million of Series B preferred dividends that were recorded as a reduction of preferred stock, including related surplus, will be recorded as a reduction to retained earnings, and approximately $15 million of related issuance costs that were recorded as a reduction of preferred stock, including related surplus, will be recorded as a reduction to net income available to common shareholders.

COMMON STOCK

On June 28, 2017, Regions received no objection from the Federal Reserve to its 2017 capital plan that was submitted as part of the CCAR process, which included the repurchase of common shares and a common stock dividend increase. As part of the Company's capital plan, the Board authorized a new $1.47 billion common stock repurchase plan, permitting repurchases from the beginning of the third quarter of 2017 through the second quarter of 2018. The capital plan also included a proposed increase of the quarterly common stock dividend to $0.09 per common share beginning in the third quarter of 2017, subject to quarterly Board approval.

The Board declared a $0.09 per share cash dividend on common stock for the first quarter of 2018 as compared to $0.065 per common share for the first quarter of 2017.

As of March 31, 2018, Regions had repurchased approximately 78.1 million shares of common stock at a total cost of approximately $1.2 billion under this plan. The Company continued to repurchase shares under this plan in the second quarter of 2018, and as of May 8, 2018, Regions had additional repurchases of approximately 6.9 million shares of common stock at a total cost of approximately $129.1 million. All of these shares were immediately retired upon repurchase and therefore will not be included in treasury stock.

ACCUMULATED OTHER COMPREHENSIVE INCOME (LOSS)

Activity within the balances in accumulated other comprehensive income (loss), net is shown in the following tables:

	Three Months Ended March 31, 2018
	Unrealized losses on securities transferred to held to maturity			Unrealized gains (losses) on securities available for sale			Unrealized gains (losses) on derivative instruments designated as cash flow hedges			Defined benefit pension plans and other post employment benefits			Accumulated other comprehensive income (loss), net of tax
	(In millions)
Beginning of period	$	(33	)	$	(153	)	$	(51	)	$	(512	)	$	(749	)
Net change	2			(310		)	(100		)	6			(402		)
End of period	$	(31	)	$	(463	)	$	(151	)	$	(506	)	$	(1,151	)

	Three Months Ended March 31, 2017
	Unrealized losses on securities transferred to held to maturity			Unrealized gains (losses) on securities available for sale			Unrealized gains (losses) on derivative instruments designated as cash flow hedges			Defined benefit pension plans and other post employment benefits			Accumulated other comprehensive income (loss), net of tax
	(In millions)
Beginning of period	$	(33	)	$	(106	)	$	11		$	(422	)	$	(550	)
Net change	2			1			(23		)	5			(15		)
End of period	$	(31	)	$	(105	)	$	(12	)	$	(417	)	$	(565	)

The following table presents amounts reclassified out of accumulated other comprehensive income (loss) for the three months ended March 31, 2018 and 2017:

	Three Months Ended March 31, 2018			Three Months Ended March 31, 2017
Details about Accumulated Other Comprehensive Income (Loss) Components	Amount Reclassified from Accumulated Other Comprehensive Income (Loss)(1)			Amount Reclassified from Accumulated Other Comprehensive Income (Loss)(1)			Affected Line Item in the Consolidated Statements of Income
	(In millions)
Unrealized losses on securities transferred to held to maturity:
	$	(3	)	$	(3	)	Net interest income and other financing income
	1			1			Tax (expense) or benefit
	$	(2	)	$	(2	)	Net of tax
Unrealized gains and (losses) on available for sale securities:
	$	—		$	—		Securities gains (losses), net
	—			—			Tax (expense) or benefit
	$	—		$	—		Net of tax
Gains and (losses) on cash flow hedges:
Interest rate contracts	$	11		$	31		Net interest income and other financing income
	(3		)	(12		)	Tax (expense) or benefit
	$	8		$	19		Net of tax
Amortization of defined benefit pension plans and other post employment benefits:
Actuarial gains (losses)	$	(9	)	$	(9	)	(2)
	(9		)	(9		)	Total before tax
	2			3			Tax (expense) or benefit
	$	(7	)	$	(6	)	Net of tax
Total reclassifications for the period	$	(1	)	$	11		Net of tax

________

(1) Amounts in parentheses indicate reductions to net income.

(2) This accumulated other comprehensive income (loss) component is included in the computation of net periodic pension cost and is included in other non-interest expense on the consolidated statements of income (see Note 9 for additional details).

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Earnings (Loss) Per Common Share

3 Months Ended

Mar. 31, 2018

Earnings Per Share [Abstract]

Earnings (Loss) Per Common Share

EARNINGS (LOSS) PER COMMON SHARE

The following table sets forth the computation of basic earnings (loss) per common share and diluted earnings (loss) per common share:

	Three Months Ended March 31
	2018			2017
	(In millions, except per share amounts)
Numerator:
Income from continuing operations	$	414		$	293
Preferred stock dividends	(16		)	(16		)
Income from continuing operations available to common shareholders	398			277
Income (loss) from discontinued operations, net of tax	—			8
Net income available to common shareholders	$	398		$	285
Denominator:
Weighted-average common shares outstanding—basic	1,127			1,209
Potential common shares	14			15
Weighted-average common shares outstanding—diluted	1,141			1,224
Earnings per common share from continuing operations available to common shareholders(1):
Basic	$	0.35		$	0.23
Diluted	0.35			0.23
Earnings (loss) per common share from discontinued operations(1):
Basic	$	0.00		$	0.01
Diluted	0.00			0.01
Earnings per common share(1):
Basic	$	0.35		$	0.24
Diluted	0.35			0.23

________

(1)  Certain per share amounts may not appear to reconcile due to rounding.

The effect from the assumed exercise of 6 million and 15 million stock options, restricted stock units and awards and performance stock units for the three months ended March 31, 2018 and 2017, respectively, was not included in the above computations of diluted earnings per common share because such amounts would have had an antidilutive effect on earnings per common share.

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Pension and Other Postretirement Benefits

3 Months Ended

Mar. 31, 2018

Defined Benefit Plan [Abstract]

Pension and Other Postretirement Benefits

PENSION AND OTHER POSTRETIREMENT BENEFITS

Regions' defined benefit pension plans cover only certain employees as the pension plans are closed to new entrants. The Company also sponsors a SERP, which is a non-qualified pension plan that provides certain senior executive officers defined benefits in relation to their compensation.

Net periodic pension cost (credit) includes the following components:

	Qualified Plans						Non-qualified Plans				Total
	Three Months Ended March 31
	2018			2017			2018		2017		2018			2017
	(In millions)
Service cost	$	9		$	8		$	1	$	1	$	10		$	9
Interest cost	18			18			1		1		19			19
Expected return on plan assets	(37		)	(35		)	—		—		(37		)	(35		)
Amortization of actuarial loss	8			8			1		1		9			9
Net periodic pension cost (credit)	$	(2	)	$	(1	)	$	3	$	3	$	1		$	2

The service cost component of net periodic pension cost is recorded in salaries and employee benefits on the consolidated statements of income. Components other than service cost are recorded in other non-interest expense on the consolidated statements of income.

Regions' funding policy for the qualified plans is to contribute annually at least the amount required by IRS minimum funding standards. Regions made a contribution of $100 million for the 2017 plan year during the first quarter of 2018.

Regions also provides other postretirement benefits such as defined benefit health care plans and life insurance plans that cover certain retired employees. There was no material impact from other postretirement benefits on the consolidated financial statements for the three months endedMarch 31, 2018 or 2017.

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Derivative Financial Instruments and Hedging Activities

3 Months Ended

Mar. 31, 2018

Derivative Instruments and Hedging Activities Disclosure [Abstract]

Derivative Financial Instruments and Hedging Activities

DERIVATIVE FINANCIAL INSTRUMENTS AND HEDGING ACTIVITIES

The following tables present the notional amount and estimated fair value of derivative instruments on a gross basis as of March 31, 2018 and December 31, 2017. Beginning in the first quarter of 2018, variation margin payments made for derivatives cleared through LCH Limited are legally characterized as settlements of the derivatives. Exchange traded derivatives cleared through LCH Limited were not offset prior to January 2018.

	March 31, 2018						December 31, 2017
	Notional Amount		Estimated Fair Value				Notional Amount		Estimated Fair Value
			Gain(1)		Loss(1)				Gain(1)		Loss(1)
	(In millions)
Derivatives in fair value hedging relationships:
Interest rate swaps	$	3,597					$	3,060	$	1	$	43
Derivatives in cash flow hedging relationships:
Interest rate swaps	7,825						6,825		5		188
Total derivatives designated as hedging instruments	$	11,422					$	9,885	$	6	$	231
Derivatives not designated as hedging instruments:
Interest rate swaps	$	41,166	$	140	$	307	$	40,841	$	308	$	342
Interest rate options	5,063		39		23		4,598		23		15
Interest rate futures and forward commitments	42,341		10		11		20,404		6		5
Other contracts	6,066		59		55		5,721		51		48
Total derivatives not designated as hedging instruments	$	94,636	$	248	$	396	$	71,564	$	388	$	410
Total derivatives	$	106,058	$	248	$	396	$	81,449	$	394	$	641
Total gross derivative instruments, before netting			$	248	$	396			$	394	$	641
Less: Legally enforceable master netting agreements			112		112				107		107
Less: Cash collateral received/posted			30		113				34		131
Total gross derivative instruments, after netting (2)			$	106	$	171			$	253	$	403

_________

(1) Derivatives in a gain position are recorded as other assets and derivatives in a loss position are recorded as other liabilities on the consolidated balance sheets. There is no fair value presented for contracts that are characterized as settled daily.

(2) As of March 31, 2018, financial instruments posted of $49 million were not offset in the consolidated balance sheets. As of December 31, 2017, cash collateral posted of $257 million and financial instruments posted of $50 million were not offset in the consolidated balance sheets.

HEDGING DERIVATIVES

Derivatives entered into to manage interest rate risk and facilitate asset/liability management strategies are designated as hedging derivatives. Derivative financial instruments that qualify in a hedging relationship are classified, based on the exposure being hedged, as either fair value hedges or cash flow hedges. See Note 1 "Summary of Significant Accounting Policies" of the Annual Report on Form 10-K for the year ended December 31, 2017, for additional information regarding accounting policies for derivatives.

FAIR VALUE HEDGES

Fair value hedge relationships mitigate exposure to the change in fair value of an asset, liability or firm commitment.

Regions enters into interest rate swap agreements to manage interest rate exposure on the Company’s fixed-rate borrowings, which includes long-term debt and certificates of deposit. These agreements involve the receipt of fixed-rate amounts in exchange for floating-rate interest payments over the life of the agreements. Regions enters into interest rate swap agreements to manage interest rate exposure on certain of the Company's fixed-rate available for sale debt securities. These agreements involve the payment of fixed-rate amounts in exchange for floating-rate interest receipts.

CASH FLOW HEDGES

Cash flow hedge relationships mitigate exposure to the variability of future cash flows or other forecasted transactions.

Regions enters into interest rate swap agreements to manage overall cash flow changes related to interest rate risk exposure on LIBOR-based loans. The agreements effectively modify the Company’s exposure to interest rate risk by utilizing receive fixed/pay LIBOR interest rate swaps.

Regions recognized an unrealized after-tax gain of $136 million and $154 million in accumulated other comprehensive income (loss) at March 31, 2018 and 2017, respectively, related to terminated cash flow hedges of loan instruments, which will be amortized into earnings in conjunction with the recognition of interest payments through 2025. Regions recognized pre-tax income of $15 million and $19 million during the three months ended March 31, 2018 and 2017, respectively related to the amortization of discontinued cash flow hedges of loan instruments.

Regions expects to reclassify out of accumulated other comprehensive income (loss) and into earnings approximately $4 million in pre-tax income due to the receipt or payment of interest payments on all cash flow hedges within the next twelve months. Included in this amount is $50 million in pre-tax net income related to the amortization of discontinued cash flow hedges. The maximum length of time over which Regions is hedging its exposure to the variability in future cash flows for forecasted transactions is approximately seven years as of March 31, 2018, and a portion of these hedges are forward starting.

The following tables present the effect of hedging derivative instruments on the consolidated statements of income:

	Three Months Ended March 31, 2018
	Interest Income					Interest Expense					Non-interest expense
	Debt securities-taxable			Loans, including fees		Deposits		Long-term borrowings			Other
Total amounts presented in the consolidated statements of income	$	154		$	851	$	49	$	72		$	225
Gains/(losses) on fair value hedging relationships:
Interest rate contracts:
Amounts related to interest settlements on derivatives	$	—		$	—	$	—	$	(1	)	$	—
Recognized on derivatives	3			—		—		(32		)	—
Recognized on hedged items	(3		)	—		—		32			—
Net income (expense) recognized on fair value hedges	$	—		$	—	$	—	$	(1	)	$	—
Gains/(losses) on cash flow hedging relationships: (1)
Interest rate contracts:
Realized gains (losses) reclassified from AOCI into net income (2)	$	—		$	11	$	—	$	—		$	—
Net income (expense) recognized on cash flow hedges	$	—		$	11	$	—	$	—		$	—

	Three Months Ended March 31, 2017
	Interest Income					Interest Expense				Non-interest expense
	Securities-taxable			Loans, including fees		Deposits		Long-term borrowings		Other
Total amounts presented in the consolidated statements of income	$	147		$	773	$	35	$	50	$	220
Gains/(losses) on fair value hedging relationships:
Interest rate contracts:
Amounts related to interest settlements on derivatives	$	(1	)	$	—	$	—	$	1	$	—
Recognized on derivatives	—			—		—		—		—
Recognized on hedged items	—			—		—		—		—
Net income (expense) recognized on fair value hedges	$	(1	)	$	—	$	—	$	1	$	—
Gains/(losses) on cash flow hedging relationships: (1)
Interest rate contracts:
Realized gains (losses) reclassified from AOCI into net income (2)	$	—		$	31	$	—	$	—	$	—
Net income (expense) recognized on cash flow hedges	$	—		$	31	$	—	$	—	$	—

_____

(1) See Note 7 for gain or (loss) recognized for cash flow hedges in AOCI.

(2) Pre-tax

The following table presents the carrying amount and associated cumulative basis adjustment related to the application of hedge accounting that is included in the carrying amount of hedged assets and liabilities in fair value hedging relationships.

	March 31, 2018
	Hedged Items Currently Designated						Hedged Items No Longer Designated
	Carrying Amount of Assets/(Liabilities)			Hedge Accounting Basis Adjustment Assets/(Liabilities)			Carrying Amount of Assets/(Liabilities)			Hedge Accounting Basis Adjustment Assets/(Liabilities)
	(In millions)
Debt securities available for sale	$	210		$	(3	)	$	577		$	7
Long-term borrowings	(3,321		)	82			(101		)	—

DERIVATIVES NOT DESIGNATED AS HEDGING INSTRUMENTS

The Company holds a portfolio of interest rate swaps, option contracts, and futures and forward commitments that result from transactions with its commercial customers in which they manage their risks by entering into a derivative with Regions. The Company monitors and manages the net risk in this customer portfolio and enters into separate derivative contracts in order to reduce the overall exposure to pre-defined limits. For both derivatives with its end customers and derivatives Regions enters into to mitigate the risk in this portfolio, the Company is subject to market risk and the risk that the counterparty will default. The contracts in this portfolio are not designated as accounting hedges and are marked-to market through earnings (in capital markets fee income and other) and included in other assets and other liabilities, as appropriate.

Regions enters into interest rate lock commitments, which are commitments to originate mortgage loans whereby the interest rate on the loan is determined prior to funding and the customers have locked into that interest rate. At March 31, 2018 and December 31, 2017, Regions had $372 million and $197 million, respectively, in total notional amount of interest rate lock commitments. Regions manages market risk on interest rate lock commitments and mortgage loans held for sale with corresponding forward sale commitments. Residential mortgage loans held for sale are recorded at fair value with changes in fair value recorded in mortgage income. Commercial mortgage loans held for sale are recorded at either the lower of cost or market or at fair value based on management's election. At March 31, 2018 and December 31, 2017, Regions had $737 million and $481 million, respectively, in total notional amounts related to these forward sale commitments. Changes in mark-to-market from both interest rate lock commitments and corresponding forward sale commitments related to residential mortgage loans are included in mortgage income. Changes in mark-to-market from both interest rate lock commitments and corresponding forward sale commitments related to commercial mortgage loans are included in capital markets fee income and other.

Regions has elected to account for residential MSRs at fair value with any changes to fair value being recorded within mortgage income. Concurrent with the election to use the fair value measurement method, Regions began using various derivative instruments, in the form of forward rate commitments, futures contracts, swaps and swaptions to mitigate the effect of changes in the fair value of its residential MSRs in its consolidated statements of income. As of March 31, 2018 and December 31, 2017, the total notional amount related to these contracts was $5.0 billion and $4.8 billion, respectively.

The following table presents the location and amount of gain or (loss) recognized in income on derivatives not designated as hedging instruments in the consolidated statements of income for the three months ended March 31, 2017 and 2017:

	Three Months Ended March 31
Derivatives Not Designated as Hedging Instruments	2018			2017
	(In millions)
Capital markets fee income and other(1):
Interest rate swaps	$	7		$	2
Interest rate options	7			2
Interest rate futures and forward commitments	1			2
Other contracts	2			(8		)
Total capital markets fee income and other	17			(2		)
Mortgage income:
Interest rate swaps	(18		)	(2		)
Interest rate options	3			2
Interest rate futures and forward commitments	(3		)	(8		)
Total mortgage income	(18		)	(8		)
	$	(1	)	$	(10	)

______

(1) Capital markets fee income and other is included in Other income on the consolidated statements of income.

Credit risk, defined as all positive exposures not collateralized with cash or other assets or reserved for, at March 31, 2018 and December 31, 2017, totaled approximately $94 million and $251 million, respectively. These amounts represent the net credit risk on all trading and other derivative positions held by Regions.

CREDIT DERIVATIVES

Regions has both bought and sold credit protection in the form of participations on interest rate swaps (swap participations). These swap participations, which meet the definition of credit derivatives, were entered into in the ordinary course of business to serve the credit needs of customers. Swap participations, whereby Regions has purchased credit protection, entitle Regions to receive a payment from the counterparty if the customer fails to make payment on any amounts due to Regions upon early termination of the swap transaction and have maturities between 2018 and 2024. Swap participations, whereby Regions has sold credit protection have maturities between 2018 and 2025. For contracts where Regions sold credit protection, Regions would be required to make payment to the counterparty if the customer fails to make payment on any amounts due to the counterparty upon early termination of the swap transaction. Regions bases the current status of the prepayment/performance risk on bought and sold credit derivatives on recently issued internal risk ratings consistent with the risk management practices of unfunded commitments.

Regions’ maximum potential amount of future payments under these contracts as of March 31, 2018 was approximately $400 million. This scenario would only occur if variable interest rates were at zero percent and all counterparties defaulted with zero recovery. The fair value of sold protection at March 31, 2018 and 2017 was immaterial. In transactions where Regions has sold credit protection, recourse to collateral associated with the original swap transaction is available to offset some or all of Regions’ obligation.

Regions has bought credit protection in the form of credit default indices. These indices, which meet the definition of credit derivatives, were entered into in the ordinary course of business to economically hedge credit spread risk in commercial mortgage loans held for sale whereby the fair value option has been elected. Credit derivatives, whereby Regions has purchased credit protection, entitle Regions to receive a payment from the counterparty if losses on the underlying index exceed a certain threshold, dependent upon the tranche rating of the capital structure.

CONTINGENT FEATURES

Certain of Regions’ derivative instrument contracts with broker-dealers contain credit-related termination provisions and/or credit-related provisions regarding the posting of collateral, allowing those broker-dealers to terminate the contracts in the event that Regions’ and/or Regions Bank’s credit ratings falls below specified ratings from certain major credit rating agencies. The aggregate fair values of all derivative instruments with any credit-risk-related contingent features that were in a liability position on March 31, 2018 and December 31, 2017, were $71 million and $91 million, respectively, for which Regions had posted collateral of $74 million and $90 million, respectively, in the normal course of business.

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Fair Value Measurements

3 Months Ended

Mar. 31, 2018

Fair Value Disclosures [Abstract]

Fair Value Measurements

FAIR VALUE MEASUREMENTS

See Note 1 “Summary of Significant Accounting Policies” to the consolidated financial statements of the Annual Report on Form 10-K for the year ended December 31, 2017 for a description of valuation methodologies for assets and liabilities measured at fair value on a recurring and non-recurring basis. Assets and liabilities measured at fair value rarely transfer between Level 1 and Level 2 measurements. There were no such transfers during the three month periods ended March 31, 2018 and 2017. Marketable equity securities and debt securities available for sale may be periodically transferred to or from Level 3 valuation based on management’s conclusion regarding the observability of inputs used in valuing the securities. Such transfers are accounted for as if they occur at the beginning of a reporting period.

The following table presents assets and liabilities measured at estimated fair value on a recurring basis and non-recurring basis as of March 31, 2018 and December 31, 2017:

	March 31, 2018								December 31, 2017
	Level 1		Level 2		Level 3(1)		Total Estimated Fair Value		Level 1		Level 2		Level 3(1)		Total Estimated Fair Value
	(In millions)
Recurring fair value measurements
Debt securities available for sale:
U.S. Treasury securities	$	327	$	—	$	—	$	327	$	331	$	—	$	—	$	331
Federal agency securities	—		42		—		42		—		28		—		28
Mortgage-backed securities (MBS):
Residential agency	—		17,152		—		17,152		—		17,431		—		17,431
Residential non-agency	—		—		2		2		—		—		3		3
Commercial agency	—		3,661		—		3,661		—		3,714		—		3,714
Commercial non-agency	—		766		—		766		—		788		—		788
Corporate and other debt securities	—		1,132		3		1,135		—		1,105		3		1,108
Total debt securities available for sale	$	327	$	22,753	$	5	$	23,085	$	331	$	23,066	$	6	$	23,403
Loans held for sale	$	—	$	282	$	—	$	282	$	—	$	325	$	—	$	325
Marketable equity securities(2)	$	525	$	—	$	—	$	525	$	414	$	—	$	—	$	414
Residential mortgage servicing rights	$	—	$	—	$	356	$	356	$	—	$	—	$	336	$	336
Derivative assets:
Interest rate swaps	$	—	$	140	$	—	$	140	$	—	$	314	$	—	$	314
Interest rate options	—		26		13		39		—		18		5		23
Interest rate futures and forward commitments	—		10		—		10		—		6		—		6
Other contracts	2		57		—		59		2		49		—		51
Total derivative assets	$	2	$	233	$	13	$	248	$	2	$	387	$	5	$	394
Derivative liabilities:
Interest rate swaps	$	—	$	307	$	—	$	307	$	—	$	573	$	—	$	573
Interest rate options	—		23		—		23		—		15		—		15
Interest rate futures and forward commitments	—		11		—		11		—		5		—		5
Other contracts	2		53		—		55		2		46		—		48
Total derivative liabilities	$	2	$	394	$	—	$	396	$	2	$	639	$	—	$	641
Non-recurring fair value measurements
Loans held for sale	$	—	$	—	$	7	$	7	$	—	$	—	$	20	$	20
Equity investments without a readily determinable fair value(3)	—		—		13		13		—		—		—		—
Foreclosed property and other real estate	—		18		4		22		—		24		9		33

_________

(1) All following disclosures related to Level 3 recurring and non-recurring assets do not include those deemed to be immaterial.

(2) Marketable equity securities were reclassified from trading account securities and securities available for sale to other earning assets, beginning in the first quarter of 2018, with the adoption of new accounting guidance. Prior periods have been reclassified to conform to current period presentation.

(3) With the adoption of new accounting guidance, effective January 1, 2018, equity investments without a readily determinable fair value are required to be adjusted prospectively to estimated fair value when an observable price transaction for a same or similar investment with the same issuer occurs.

Assets and liabilities in all levels could result in volatile and material price fluctuations. Realized and unrealized gains and losses on Level 3 assets represent only a portion of the risk to market fluctuations in Regions’ consolidated balance sheets. Further, derivatives included in Levels 2 and 3 are used by ALCO in a holistic approach to managing price fluctuation risks.

The following tables illustrate rollforwards for all material assets and liabilities measured at fair value on a recurring basis using significant unobservable inputs (Level 3) for the three months ended March 31, 2018 and 2017, respectively. The net changes in realized gains (losses) included in earnings related to Level 3 assets and liabilities held at March 31, 2018 and 2017 are not material.

	Three Months Ended March 31, 2018
	Opening Balance January 1, 2018		Total Realized / Unrealized Gains or Losses			Purchases	Sales	Issuances	Settlements	Transfers into Level 3	Transfers out of Level 3	Closing Balance March 31, 2018
			Included in Earnings		Included in Other Compre- hensive Income (Loss)
	(In millions)
Level 3 Instruments Only
Residential mortgage servicing rights	$	336	12	(1)	—	8	—	—	—	—	—	$	356

	Three Months Ended March 31, 2017
	Opening Balance January 1, 2017		Total Realized / Unrealized Gains or Losses				Purchases	Sales	Issuances	Settlements	Transfers into Level 3	Transfers out of Level 3	Closing Balance March 31, 2017
			Included in Earnings			Included in Other Compre- hensive Income (Loss)
	(In millions)
Level 3 Instruments Only
Residential mortgage servicing rights	$	324	(6	)	(1)	—	8	—	—	—	—	—	$	326

_________

(1) Included in mortgage income.

The following table presents the fair value adjustments related to non-recurring fair value measurements:

	Three Months Ended March 31
	2018			2017
	(In millions)
Loans held for sale	$	(3	)	$	(4	)
Foreclosed property and other real estate	(5		)	(4		)
Equity investments without a readily determinable fair value	7			—

The following tables present detailed information regarding material assets and liabilities measured at fair value using significant unobservable inputs (Level 3) as of March 31, 2018, and December 31, 2017. The tables include the valuation techniques and the significant unobservable inputs utilized. The range of each significant unobservable input as well as the weighted-average within the range utilized at March 31, 2018, and December 31, 2017, are included. Following the tables are descriptions of the valuation techniques and the sensitivity of the techniques to changes in the significant unobservable inputs.

	March 31, 2018
	Level 3 Estimated Fair Value at March 31, 2018	Valuation Technique	Unobservable Input(s)	Quantitative Range of Unobservable Inputs and (Weighted-Average)
	(Dollars in millions)
Recurring fair value measurements:
Residential mortgage servicing rights(1)	$356	Discounted cash flow	Weighted-average CPR (%)	3.6% - 28.0% (9.0%)
			OAS (%)	7.8% - 15.0% (8.4%)

_________

(1) See Note 5 for additional disclosures related to assumptions used in the fair value calculation for residential mortgage servicing rights.

	December 31, 2017
	Level 3 Estimated Fair Value at December 31, 2017	Valuation Technique	Unobservable Input(s)	Quantitative Range of Unobservable Inputs and (Weighted-Average)
	(Dollars in millions)
Recurring fair value measurements:
Residential mortgage servicing rights(1)	$336	Discounted cash flow	Weighted-average CPR (%)	7.9% - 28.1% (9.9%)
			OAS (%)	8.1% - 15.0% (8.6%)

_________

(1) See Note 7 to the consolidated financial statements of the Annual Report on Form 10-K for the year ended December 31, 2017 for additional disclosures related to assumptions used in the fair value calculation for residential mortgage servicing rights.

RECURRING FAIR VALUE MEASUREMENTS USING SIGNIFICANT UNOBSERVABLE INPUTS

Residential mortgage servicing rights

The significant unobservable inputs used in the fair value measurement of residential MSRs are OAS and CPR. This valuation requires generating cash flow projections over multiple interest rate scenarios and discounting those cash flows at a risk-adjusted rate. Additionally, the impact of prepayments and changes in the OAS are based on a variety of underlying inputs including servicing costs. Increases or decreases to the underlying cash flow inputs will have a corresponding impact on the value of the MSR asset. The net change in unrealized gains (losses) included in earnings related to MSRs held at period end are disclosed as the changes in valuation inputs or assumptions included in the MSR rollforward table in Note 5. See Note 5 for these amounts and additional disclosures related to assumptions used in the fair value calculation for MSRs.

FAIR VALUE OPTION

Regions has elected the fair value option for all FNMA and FHLMC eligible residential mortgage loans and certain commercial mortgage loans originated with the intent to sell. These elections allow for a more effective offset of the changes in fair values of the loans and the derivative instruments used to economically hedge them without the burden of complying with the requirements for hedge accounting. Regions has not elected the fair value option for other loans held for sale primarily because they are not economically hedged using derivative instruments. Fair values of residential mortgage loans held for sale are based on traded market prices of similar assets where available and/or discounted cash flows at market interest rates, adjusted for securitization activities that include servicing values and market conditions, and are recorded in loans held for sale in the consolidated balance sheets.

The following table summarizes the difference between the aggregate fair value and the aggregate unpaid principal balance for mortgage loans held for sale measured at fair value:

	March 31, 2018						December 31, 2017
	Aggregate Fair Value		Aggregate Unpaid Principal		Aggregate Fair Value Less Aggregate Unpaid Principal		Aggregate Fair Value		Aggregate Unpaid Principal		Aggregate Fair Value Less Aggregate Unpaid Principal
	(In millions)
Mortgage loans held for sale, at fair value	$	282	$	273	$	9	$	325	$	314	$	11

Interest income on mortgage loans held for sale is recognized based on contractual rates and is reflected in interest income on loans held for sale in the consolidated statements of income. The following table details net gains and losses resulting from changes in fair value of these loans, which were recorded in mortgage income in the consolidated statements of income during the three months ended March 31, 2018 and 2017. These changes in fair value are mostly offset by economic hedging activities. An immaterial portion of these amounts was attributable to changes in instrument-specific credit risk.

	Net gains (losses) resulting from changes in fair value
	Three Months Ended March 31
	2018			2017
	(In millions)
Mortgage loans held for sale, at fair value	$	(3	)	$	4

The carrying amounts and estimated fair values, as well as the level within the fair value hierarchy, of the Company’s financial instruments as of March 31, 2018 are as follows:

	March 31, 2018
	Carrying Amount		Estimated Fair Value(1)		Level 1		Level 2		Level 3
	(In millions)
Financial assets:
Cash and cash equivalents	$	3,185	$	3,185	$	3,185	$	—	$	—
Debt securities held to maturity	1,611		1,585		—		1,585		—
Debt securities available for sale	23,085		23,085		327		22,753		5
Loans held for sale	452		452		—		439		13
Loans (excluding leases), net of unearned income and allowance for loan losses(2)(3)	77,917		76,683		—		—		76,683
Other earning assets(4)	1,190		1,190		525		665		—
Derivative assets	248		248		2		233		13
Financial liabilities:
Derivative liabilities	396		396		2		394		—
Deposits	96,990		97,015		—		97,015		—
Long-term borrowings	7,949		8,239		—		7,814		425
Loan commitments and letters of credit	77		413		—		—		413

_________

(1) Estimated fair values are consistent with an exit price concept. The assumptions used to estimate the fair values are intended to approximate those that a market participant would use in a hypothetical orderly transaction. In estimating fair value, the Company maintains a corporate governance program to make adjustments for estimated changes in interest rates, market liquidity and credit spreads in the periods they are deemed to have occurred.

(2) The estimated fair value of portfolio loans assumes sale of the loans to a third-party financial investor. Accordingly, the value to the Company if the loans were held to maturity is not reflected in the fair value estimate. In the current whole loan market, financial investors are generally requiring a higher rate of return than the return inherent in loans if held to maturity. The fair value discount on the loan portfolio's net carrying amount at March 31, 2018 was $1.2 billion or 1.6 percent.

(3) Excluded from this table is the capital lease carrying amount of $1.1 billion at March 31, 2018.

(4) Excluded from this table is the operating lease carrying amount of $450 million at March 31, 2018.

The carrying amounts and estimated fair values, as well as the level within the fair value hierarchy, of the Company's financial instruments as of December 31, 2017 are as follows:

	December 31, 2017
	Carrying Amount		Estimated Fair Value(1)		Level 1		Level 2		Level 3
	(In millions)
Financial assets:
Cash and cash equivalents	$	3,981	$	3,981	$	3,981	$	—	$	—
Debt securities held to maturity	1,658		1,667		—		1,667		—
Debt securities available for sale	23,403		23,403		331		23,066		6
Loans held for sale	348		348		—		328		20
Loans (excluding leases), net of unearned income and allowance for loan losses(2)(3)	77,942		76,871		—		—		76,871
Other earning assets(4)	1,402		1,402		414		988		—
Derivative assets	394		394		2		387		5
Financial liabilities:
Derivative liabilities	641		641		2		639		—
Deposits	96,889		96,927		—		96,927		—
Long-term borrowings	8,132		8,517		—		7,757		760
Loan commitments and letters of credit	79		540		—		—		540

_________

(1) Estimated fair values are consistent with an exit price concept. The assumptions used to estimate the fair values are intended to approximate those that a market participant would use in a hypothetical orderly transaction. In estimating fair value, the Company maintains a corporate governance program to make adjustments for estimated changes in interest rates, market liquidity and credit spreads in the periods they are deemed to have occurred.

(2) The estimated fair value of portfolio loans assumes sale of the loans to a third-party financial investor. Accordingly, the value to the Company if the loans were held to maturity is not reflected in the fair value estimate. In the current whole loan market, financial investors are generally requiring a higher rate of return than the return inherent in loans if held to maturity. The fair value discount on the loan portfolio's net carrying amount at December 31, 2017 was $1.1 billion or 1.4 percent.

(3) Excluded from this table is the capital lease carrying amount of $1.1 billion at December 31, 2017.

(4) Excluded from this table is the operating lease carrying amount of $489 million at December 31, 2017.

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Business Segment Information

3 Months Ended

Mar. 31, 2018

Segment Reporting [Abstract]

Business Segment Information

BUSINESS SEGMENT INFORMATION

Each of Regions’ reportable segments is a strategic business unit that serves specific needs of Regions’ customers based on the products and services provided. The segments are based on the manner in which management views the financial performance of the business. The Company has three reportable segments: Corporate Bank, Consumer Bank, and Wealth Management, with the remainder split between Discontinued Operations and Other. Additional information about the Company's reportable segments is included in Regions' Annual Report on Form 10-K for the year ended December 31, 2017.

The application and development of management reporting methodologies is a dynamic process and is subject to periodic enhancements. As these enhancements are made, financial results presented by each reportable segment may be periodically revised.

Discontinued operations includes all brokerage and investment activities associated with the sale of Morgan Keegan which closed on April 2, 2012, as well as the pending sale of Regions Insurance Group, Inc. and related affiliates. See Note 2 for related discussion.

The following tables present financial information for each reportable segment for the period indicated.

	Three Months Ended March 31, 2018
	Corporate Bank		Consumer Bank		Wealth Management		Other			Continuing Operations			Discontinued Operations		Consolidated
	(In millions)
Net interest income and other financing income (loss)	$	340	$	542	$	49	$	(22	)	$	909		$	—	$	909
Provision (credit) for loan losses	55		76		4		(145		)	(10		)	—		(10		)
Non-interest income	144		276		77		10			507			34		541
Non-interest expense	233		523		91		37			884			34		918
Income (loss) before income taxes	196		219		31		96			542			—		542
Income tax expense (benefit)	49		55		8		16			128			—		128
Net income (loss)	$	147	$	164	$	23	$	80		$	414		$	—	$	414
Average assets	$	51,037	$	35,011	$	2,359	$	34,917		$	123,324		$	170	$	123,494

	Three Months Ended March 31, 2017
	Corporate Bank		Consumer Bank		Wealth Management		Other			Continuing Operations		Discontinued Operations		Consolidated
	(In millions)
Net interest income and other financing income (loss)	$	341	$	518	$	46	$	(46	)	$	859	$	—	$	859
Provision (credit) for loan losses	67		74		5		(76		)	70		—		70
Non-interest income	123		275		74		2			474		36		510
Non-interest expense	214		513		84		32			843		23		866
Income (loss) before income taxes	183		206		31		—			420		13		433
Income tax expense (benefit)	69		78		12		(32		)	127		5		132
Net income (loss)	$	114	$	128	$	19	$	32		$	293	$	8	$	301
Average assets	$	52,340	$	35,047	$	2,518	$	34,747		$	124,652	$	158	$	124,810

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Commitments, Contingencies and Guarantees

3 Months Ended

Mar. 31, 2018

Commitments and Contingencies Disclosure [Abstract]

Commitments, Contingencies and Guarantees

COMMITMENTS, CONTINGENCIES AND GUARANTEES

COMMERCIAL COMMITMENTS

Regions issues off-balance sheet financial instruments in connection with lending activities. The credit risk associated with these instruments is essentially the same as that involved in extending loans to customers and is subject to Regions’ normal credit approval policies and procedures. Regions measures inherent risk associated with these instruments by recording a reserve for unfunded commitments based on an assessment of the likelihood that the guarantee will be funded and the creditworthiness of the customer or counterparty. Collateral is obtained based on management’s assessment of the creditworthiness of the customer.

Credit risk associated with these instruments is represented by the contractual amounts indicated in the following table:

	March 31, 2018		December 31, 2017
	(In millions)
Unused commitments to extend credit	$	46,328	$	45,705
Standby letters of credit	1,436		1,348
Commercial letters of credit	76		76
Liabilities associated with standby letters of credit	28		26
Assets associated with standby letters of credit	29		28
Reserve for unfunded credit commitments	49		53

Unused commitments to extend credit—To accommodate the financial needs of its customers, Regions makes commitments under various terms to lend funds to consumers, businesses and other entities. These commitments include (among others) credit card and other revolving credit agreements, term loan commitments and short-term borrowing agreements. Many of these loan commitments have fixed expiration dates or other termination clauses and may require payment of a fee. Since many of these commitments are expected to expire without being funded, the total commitment amounts do not necessarily represent future liquidity requirements.

Standby letters of credit—Standby letters of credit are also issued to customers, which commit Regions to make payments on behalf of customers if certain specified future events occur. Regions has recourse against the customer for any amount required to be paid to a third party under a standby letter of credit. Historically, a large percentage of standby letters of credit expire without being funded. The contractual amount of standby letters of credit represents the maximum potential amount of future payments Regions could be required to make and represents Regions’ maximum credit risk.

Commercial letters of credit—Commercial letters of credit are issued to facilitate foreign or domestic trade transactions for customers. As a general rule, drafts will be drawn when the goods underlying the transaction are in transit.

LEGAL CONTINGENCIES

Regions and its subsidiaries are subject to loss contingencies related to litigation, claims, investigations and legal and administrative cases and proceedings arising in the ordinary course of business. Regions evaluates these contingencies based on information currently available, including advice of counsel. Regions establishes accruals for those matters when a loss contingency is considered probable and the related amount is reasonably estimable. Any accruals are periodically reviewed and may be adjusted as circumstances change. Some of Regions' exposure with respect to loss contingencies may be offset by applicable insurance coverage. In determining the amounts of any accruals or estimates of possible loss contingencies however, Regions does not take into account the availability of insurance coverage. To the extent that Regions has an insurance recovery, the proceeds are recorded in the period the recovery is received.

In addition, Regions has agreed to indemnify Raymond James for all legal matters resulting from pre-closing activities in conjunction with the sale of Morgan Keegan and recorded an indemnification obligation at fair value in the second quarter of 2012.

When it is practicable, Regions estimates possible loss contingencies, whether or not there is an accrued probable loss. When Regions is able to estimate such possible losses, and when it is reasonably possible Regions could incur losses in excess of amounts accrued, Regions discloses the aggregate estimation of such possible losses. Regions currently estimates that any such losses in excess of amounts accrued, including legal contingencies that are subject to the indemnification agreement with Raymond James, would be immaterial to Regions' financial statements as a whole. However, as available information changes, the matters for which Regions is able to estimate, as well as the estimates themselves will be adjusted accordingly.

Assessments of litigation and claims exposure are difficult because they involve inherently unpredictable factors including, but not limited to, the following: whether the proceeding is in the early stages; whether damages are unspecified, unsupported, or uncertain; whether there is a potential for punitive or other pecuniary damages; whether the matter involves legal uncertainties, including novel issues of law; whether the matter involves multiple parties and/or jurisdictions; whether discovery has begun or is not complete; whether meaningful settlement discussions have commenced; and whether the lawsuit involves class allegations. Assessments of class action litigation, which is generally more complex than other types of litigation, are particularly difficult, especially in the early stages of the proceeding when it is not known whether a class will be certified or how a potential class, if certified, will be defined. As a result, Regions may be unable to estimate reasonably possible losses with respect to some of the matters disclosed below, and the aggregated estimated amount discussed above may not include an estimate for every matter disclosed below.

In July 2006, Morgan Keegan and a former Morgan Keegan analyst were named as defendants in a lawsuit filed by a Canadian insurance and financial services company and its American subsidiary in the Circuit Court of Morris County, New Jersey. Plaintiffs alleged civil claims under the RICO Act and claims for commercial disparagement, tortious interference with contractual relationships, tortious interference with prospective economic advantage and common law conspiracy. Plaintiffs allege that defendants engaged in a multi-year conspiracy to publish and disseminate false and defamatory information about plaintiffs to improperly drive down plaintiffs’ stock price, so that others could profit from short positions. Plaintiffs allege that defendants’ actions damaged their reputations and harmed their business relationships. Plaintiffs seek monetary damages for a number of categories of alleged damages, including lost insurance business, lost financings and increased financing costs, increased audit fees and directors and officers insurance premiums and lost acquisitions. In September 2012, the trial court dismissed the case with prejudice. Plaintiffs filed an appeal, and in April 2017, the appellate court affirmed the dismissal of the plaintiffs’ claims under the RICO Act. The appellate court reversed the trial court’s dismissal of the commercial disparagement and tortious interference claims and remanded those claims but limited the plaintiffs’ damages. Plaintiffs filed an appeal with the Supreme Court of New Jersey in May 2017, and in October 2017, that court denied the plaintiffs' petition and remanded the case to the trial court. A trial date has been set for early June 2018. This matter is subject to the indemnification agreement with Raymond James.

Regions is involved in formal and informal information-gathering requests, investigations, reviews, examinations and proceedings by various governmental regulatory agencies, law enforcement authorities and self-regulatory bodies regarding Regions’ business, Regions' business practices and policies, and the conduct of persons with whom Regions does business. Additional inquiries will arise from time to time. In connection with those inquiries, Regions receives document requests, subpoenas and other requests for information. The inquiries, including those described below, could develop into administrative, civil or criminal proceedings or enforcement actions that could result in consequences that have a material effect on Regions' consolidated financial position, results of operations or cash flows as a whole. Such consequences could include adverse judgments, findings, settlements, penalties, fines, orders, injunctions, restitution, or alterations in our business practices, and could result in additional expenses and collateral costs, including reputational damage.    

Regions is cooperating with an investigation by the United States Attorney’s Office for the Eastern District of New York pertaining to Regions' banking relationship with a former customer and accounts maintained by related entities and individuals affiliated with the customer who may be involved in criminal activity, as well as related aspects of Regions' Anti-Money Laundering and Bank Secrecy Act compliance program.

While the final outcome of litigation and claims exposures or of any inquiries is inherently unpredictable, management is currently of the opinion that the outcome of pending and threatened litigation and inquiries will not have a material effect on Regions’ business, consolidated financial position, results of operations or cash flows as a whole. However, in the event of unexpected future developments, it is reasonably possible that an adverse outcome in any of the matters discussed above could be material to Regions’ business, consolidated financial position, results of operations or cash flows for any particular reporting period of occurrence.

GUARANTEES

INDEMNIFICATION OBLIGATION

As discussed in Note 2, on April 2, 2012 (“Closing Date”), Regions closed the sale of Morgan Keegan and related affiliates to Raymond James. In connection with the sale, Regions agreed to indemnify Raymond James for all legal matters related to pre-closing activities, including matters filed subsequent to the Closing Date that relate to actions that occurred prior to closing. Losses under the indemnification include legal and other expenses, such as costs for judgments, settlements and awards associated with the defense and resolution of the indemnified matters. The maximum potential amount of future payments that Regions could be required to make under the indemnification is indeterminable due to the indefinite term of some of the obligations. As of March 31, 2018, the carrying value and fair value of the indemnification obligation were immaterial.

FANNIE MAE DUS LOSS SHARE GUARANTEE

Regions is a DUS lender. The DUS program provides liquidity to the multi-family housing market. Regions services loans sold to Fannie Mae and is required to provide a loss share guarantee equal to one-third of the majority of its DUS servicing portfolio. At March 31, 2018 and December 31, 2017, the Company's DUS servicing portfolio totaled approximately $2.8 billion and $2.9 billion, respectively. Regions' maximum quantifiable contingent liability related to its loss share guarantee was approximately $915 million and $923 million at March 31, 2018 and December 31, 2017, respectively. The Company would be liable for this amount only if all of the loans it services for Fannie Mae, for which the Company retains some risk of loss, were to default and all of the collateral underlying these loans was determined to be without value at the time of settlement. Therefore, the maximum quantifiable contingent liability is not representative of the actual loss the Company would be expected to incur. The estimated fair value of the associated loss share guarantee recorded as a liability on the Company's consolidated balance sheets was approximately $4 million at both March 31, 2018 and December 31, 2017. Refer to Note 1 "Summary of Significant Accounting Policies" to the consolidated financial statements in the Annual Report on Form 10-K for the year ended December 31, 2017, for additional information.

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Revenue Recognition

3 Months Ended

Mar. 31, 2018

Revenue Recognition [Abstract]

Revenue Recognition

REVENUE RECOGNITION

The Company records revenue when control of the promised products or services is transferred to the customer, in an amount that reflects the consideration Regions expects to be entitled to in exchange for those products or services. Refer to Note 1 “Summary of Significant Accounting Policies” to the consolidated financial statements to the Annual Report on Form 10-K for the year ended December 31, 2017, for descriptions of the accounting and reporting policies related to revenue recognition.

The following tables present total non-interest income disaggregated by major product category for each reportable segment for the period indicated.

	Three Months Ended March 31, 2018
	Corporate Bank		Consumer Bank		Wealth Management		Other Segment Revenue		Other(1)			Continuing Operations			Discontinued Operations
	(In millions)
Service charges on deposit accounts	$	37	$	131	$	1	$	1	$	1		$	171		$	—
Card and ATM fees	12		96		—		—		(4		)	104			—
Investment management and trust fee income	—		—		58		—		—			58			—
Capital markets fee income and other	18		—		—		—		32			50			—
Mortgage income	—		—		—		—		38			38			—
Bank-owned life insurance	—		—		—		—		17			17			—
Commercial credit fee income	—		—		—		—		17			17			—
Investment services fee income	—		—		17		—		—			17			—
Market value adjustments on employee benefit assets	—		—		—		—		(1		)	(1		)	—
Insurance commissions and fees	—		—		—		—		—			—			34
Other miscellaneous income	5		9		1		—		21			36			—
	$	72	$	236	$	77	$	1	$	121		$	507		$	34

	Three Months Ended March 31, 2017 (2)
	Corporate Bank		Consumer Bank		Wealth Management		Other Segment Revenue		Other(1)			Continuing Operations		Discontinued Operations
	(In millions)
Service charges on deposit accounts	$	36	$	127	$	1	$	2	$	2		$	168	$	—
Card and ATM fees	12		93		—		—		(1		)	104		—
Investment management and trust fee income	—		—		56		—		—			56		—
Capital markets fee income and other	9		—		—		—		23			32		—
Mortgage income	—		—		—		—		41			41		—
Bank-owned life insurance	—		—		—		—		19			19		—
Commercial credit fee income	—		—		—		—		18			18		—
Investment services fee income	—		—		16		—		—			16		—
Market value adjustments on employee benefit assets	—		—		—		—		5			5		—
Insurance commissions and fees	—		—		—		—		—			—		36
Other miscellaneous income	3		11		1		—		—			15		—
	$	60	$	231	$	74	$	2	$	107		$	474	$	36

________

(1) This revenue is not impacted by the new accounting guidance and continues to be recognized when earned in accordance with the Company's existing revenue recognition policy.

(2) Prior period amounts have not been adjusted under the modified retrospective method.

Regions elected the practical expedient related to contract costs and will continue to expense sales commissions and any related contract costs when incurred because the amortization period would have been one year or less.

Regions also elected the practical expedient related to remaining performance obligations and therefore did not disclose the value of unsatisfied performance obligations for 1) contracts with an original expected length of one year or less and 2) contracts for which revenue is recognized at the amount to which Regions has the right to invoice for services performed.

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Recent Accounting Pronouncements

3 Months Ended

Mar. 31, 2018

New Accounting Pronouncements and Changes in Accounting Principles [Abstract]

Recent Accounting Pronouncements

RECENT ACCOUNTING PRONOUNCEMENTS    

Standard	Description	Required Date of Adoption	Effect on Regions' financial statements or other significant matters
Standards Adopted (or partially adopted) in 2018
ASU 2014-09, Revenue from Contracts with Customers ASU 2015-14, Deferral of the Effective Date ASU 2016-08, Principal versus Agent Considerations ASU 2016-10, Identifying Performance Obligations and Licensing ASU 2016-12, Narrow-Scope Improvements and Practical Expedience ASU 2016-20, Technical Corrections and Improvements to Topic 606, Revenue from Contracts with Customers	This ASU supersedes the revenue recognition requirements in ASC Topic 605, Revenue Recognition, and most industry-specific guidance throughout the Industry topics of the Codification. The core principle of the ASU is that an entity should recognize revenue to depict the transfer of promised goods or services to customers in an amount that reflects the consideration to which the entity expects to be entitled in exchange for those goods or services. The ASU may be adopted either retrospectively or on a modified retrospective basis.	January 1, 2018	Regions adopted the new revenue recognition standard on January 1, 2018 using the modified retrospective method. The adoption of this guidance did not have a material impact to the financial statements. For the three months ended March 31, 2018, approximately $420 million of non-interest income is within the scope of the new revenue recognition standard and includes service charges on deposit accounts, card and ATM fees, investment management and trust fee income, capital markets fee income, investment services fee income and other components within non-interest income. Income streams that are out of scope of the new standard include interest income, mortgage income, securities gains (losses), bank-owned life insurance and certain other components within non-interest income. Regions also developed additional quantitative and qualitative disclosures required by the new revenue recognition standard. See Note 14.
ASU 2016-01, Recognition and Measurement of Financial Assets and Liabilities ASU 2018-03, Technical Corrections and Improvements to Financial Instruments ASU 2018-04, Debt Securities and Regulated Operations	This ASU amends ASC Topic 825, Financial Instruments-Overall, and addresses certain aspects of recognition, measurement, presentation, and disclosure of financial instruments. Among other minor amendments applicable to Regions, the main provisions require investments in equity securities to be measured at fair value with changes in fair value recognized through net income unless they qualify for a practicability exception (excludes investments accounted for under the equity method of accounting or those that result in consolidation of the investee). Except for disclosure requirements that have been adopted prospectively, the ASU must be adopted on a modified retrospective basis.	January 1, 2018	The adoption of this guidance resulted in trading account assets and equity securities available for sale being reclassified to other earning assets. The adoption of this guidance did not have a material impact. See Note 3.
ASU 2016-15, Classification of Certain Cash Receipts and Cash Payments	This ASU amends Topic 230, Statement of Cash Flows, and provides clarification with respect to classification within the statement of cash flows where current guidance is unclear or silent. The ASU must be adopted retrospectively.	January 1, 2018	The adoption of this guidance did not have a material impact.
ASU 2017-01, Clarifying the Definition of a Business	This ASU amends Topic 805, Business Combinations, and provides additional accounting guidance to better determine when a set of assets and activities is a business. The ASU must be adopted prospectively.	January 1, 2018	The adoption of this guidance did not have a material impact.
ASU 2017-05, Other Income- Gains and Losses from the Derecognition of Nonfinancial Assets	This ASU amends Subtopic 610-20, Other Income - Gains and Losses from the Derecognition of Nonfinancial Assets, to clarify the scope and to add guidance for partial sales of nonfinancial assets. The new standard adds a definition for in-substance nonfinancial assets and clarifies that nonfinancial assets within a legal entity are within the scope of ASC 606. This ASU may be adopted either retrospectively or on a modified retrospective basis.	January 1, 2018	Regions adopted the guidance using the modified retrospective method. The adoption of this guidance did not have a material impact.

Standard	Description	Required Date of Adoption	Effect on Regions' financial statements or other significant matters
Standards Adopted (or partially adopted) in 2018 (continued)
ASU 2017-07, Compensation- Retirement Benefits	This ASU amends Topic 715, Retirement Benefits, and provides more prescriptive guidance around the presentation of net periodic pension and postretirement benefit cost in the income statement. The amendment requires that the service cost component be disaggregated from other components of net periodic benefit cost in the income statement. The ASU must be adopted retrospectively.	January 1, 2018	For the first quarter of 2018, Regions recorded the service cost component of net periodic pension and postretirement benefit cost in salaries and employee benefits in the income statement. The other components of net periodic pension and postretirement benefit cost were recorded in other non-interest expense. The first quarter of 2017 has been revised to conform to this presentation. The adoption of this guidance did not have a material impact. See Note 9.
ASU 2017-09, Stock Compensation: Scope of Modification Accounting	This ASU amends Topic 718, Compensation- Stock Compensation, and clarifies when modification accounting should be applied to changes in terms or conditions of share-based payment awards. The amendments narrow the scope of modification accounting by clarifying that modification accounting should be applied to awards if the change affects the fair value, vesting conditions, or classification of the award. The amendments do not impact current disclosure requirements for modifications, regardless of whether modification accounting is required under the new guidance. The ASU must be adopted prospectively to modifications that occur on or after the adoption date.	January 1, 2018	The adoption of this guidance did not have a material impact.
ASU 2017-12, Targeted Improvements to Accounting for Hedging Activities	This ASU amends ASC 815, Derivatives and Hedging to (1) improve the transparency and understandability of information conveyed to financial statement users about an entity’s risk management activities by better aligning the entity’s financial reporting for hedging relationships with those risk management activities and (2) reduce the complexity of and simplify the application of hedge accounting by preparers. Except for disclosure requirements that have been adopted prospectively, the ASU must be adopted on a modified retrospective basis.	January 1, 2019. Early adoption is permitted.	Regions elected to adopt this ASU for financial reporting as of January 1, 2018. The adoption of this guidance did not have a material impact. See Note 10.
ASU 2018-05, Income Taxes	This ASU amends SEC guidance in the Codification related to income taxes to reflect the guidance in SEC Staff Accounting Bulletin 118, which provides guidance for companies that are not able to complete their accounting for the income tax effects of the Tax Cuts and Jobs Act in the period of enactment. The staff believes that to the extent a company can reasonably estimate the impact of the Tax Cuts and Job Act, such items should be reported in the first reporting period in which the Company is able to determine the reasonable estimate.	Adopted upon issuance.	Regions does not expect this guidance to have a material impact.

Standard	Description	Required Date of Adoption	Effect on Regions' financial statements or other significant matters
Standards Not Yet Adopted
ASU 2016-02, Leases ASU 2018-01, Land Easement Practical Expedient for Transition to Topic 842	This ASU creates ASC Topic 842, Leases, and supersedes Topic 840,Leases. The new guidance requires lessees to record a right-of-use asset and a corresponding liability equal to the present value of future rental payments on their balance sheets for all leases with a term greater than one year. There are not significant changes to lessor accounting; however, there were certain improvements made to align lessor accounting with the lessee accounting model and Topic 606, Revenue from Contracts with Customers. This guidance expands both quantitative and qualitative required disclosures. This ASU should be adopted on a modified retrospective basis.	January 1, 2019 Early adoption is permitted.	This ASU supersedes the lease accounting requirements in ASC Topic 840, Leases. Regions has established a leasing standard implementation team comprised of the Corporate Controller’s group, Corporate Real Estate and other business and finance management to plan and execute the adoption of the new leasing standard.  The implementation team has substantially completed the identification of Regions’ leases that will need to be measured and reported as a right-of-use asset and corresponding liability for future rental payments. The implementation team is currently working with a lease administration vendor to set up and test the accounting for the lease contracts on the lease administration system. Based on preliminary estimates that are subject to change, Regions has a range of approximately $400-$600 million of future lease obligations that would be measured and recognized when the new guidance is adopted (refer to Note 24 to consolidated financial statements included in the Annual Report on Form 10-K for the year ended December 31, 2017). While this amount represents a large majority of the leases that are within the scope of the new leasing standard, the implementation team will continue reviewing service contracts up through the effective date and may identify additional leases embedded in those arrangements that will be within the scope of the new standard. Between now and January 1, 2019, Regions will likely have changes to the lease portfolio as the Company continues to evaluate and execute branch and occupancy optimization initiatives. In addition to final determination of the lease portfolio at the effective date, the initial measurement of the right-of-use asset and the corresponding liability will be affected by certain key assumptions such as expectations of renewals or extensions and the interest rate to be used to discount the future lease obligations. Up through the date of adoption, the evaluation of the impact of the standard will be adjusted based on new leases that are executed, leases that are terminated prior to the effective date, and any leases with changes to key assumptions or expectations such as renewals and extensions, and discount rates. While there will be some changes to income statement classification, the implementation team does not expect the adoption of the standard to have a material impact to pre-tax income. Regions does not anticipate early adoption of the new standard.
ASU 2016-13, Measurement of Credit Losses on Financial Instruments	This ASU amends Topic 326, Financial Instruments- Credit Losses to replace the current incurred loss accounting model with a current expected credit loss approach (CECL) for financial instruments measured at amortized cost and other commitments to extend credit. The amendments require entities to consider all available relevant information when estimating current expected credit losses, including details about past events, current conditions, and reasonable and supportable forecasts. The resulting allowance for credit losses is to reflect the portion of the amortized cost basis that the entity does not expect to collect. The amendments also eliminate the current accounting model for purchased credit impaired loans and debt securities. Additional quantitative and qualitative disclosures are required upon adoption. While the CECL model does not apply to available for sale debt securities, the ASU does require entities to record an allowance when recognizing credit losses for available for sale securities, rather than reduce the amortized cost of the securities by direct write-offs. The ASU should be adopted on a modified retrospective basis. Entities that have loans accounted for under ASC 310-30 at the time of adoption should prospectively apply the guidance in this amendment for purchase credit deteriorated assets.	January 1, 2020 Early adoption permitted beginning January 1, 2019.	Regions’ cross-functional implementation team, which is co-led by Finance and Risk Management, has developed a project plan that results in the adoption of the standard in the first quarter of 2020. Key project implementation activities for 2018 will focus on model enhancements, execution and implementation, continued challenge of model outputs, processes and controls, policies, disclosures, and data resolution. Regions expects adoption of the standard will result in an overall increase in the allowance for credit losses given the change from accounting for losses inherent in the loan portfolio to accounting for losses over the remaining contractual life of the portfolio. Based on initial modeling, loan portfolios expected to generate the majority of the increase include longer-dated loans such as residential first mortgages and home equity lending products. Additionally, there could be decreases in the allowance in certain of our loan portfolios at adoption. Regions expects no material allowance on held to maturity securities since the majority of this portfolio consists of agency-backed securities that inherently have an immaterial risk of loss. Additionally, Regions expects no material allowance impact to available for sale securities. The amount of the change in these allowances will be impacted by the portfolios’ composition and quality at the adoption date as well as economic conditions and forecasts at that time. Regions does not anticipate early adoption of the new standard.

Standard	Description	Required Date of Adoption	Effect on Regions' financial statements or other significant matters
Standards Not Yet Adopted
ASU 2017-04, Simplifying the Test for Goodwill Impairment	This ASU amends Topic 350, Intangibles-Goodwill and Other, and eliminates Step 2 from the goodwill impairment test.	January 1, 2020 Early adoption is permitted.	Regions believes the adoption of this guidance will not have a material impact. Regions does not plan to early adopt.
ASU 2017-08, Receivables- Nonrefundable Fees and Other Costs	This ASU amends Subtopic 310-20, Receivables-Nonrefundable Fees and Other Costs, to shorten the amortization period for certain purchased callable debt securities held at a premium to the earliest call date. Current guidance generally requires entities to amortize a premium as a yield adjustment over the contractual life of the instrument. Shortening the amortization period is generally expected to more closely align the recognition of interest income with expectations incorporated into the pricing of the underlying securities. The amendments do not affect the accounting treatment of discounts. This ASU should be adopted on a modified retrospective basis.	January 1, 2019 Early adoption permitted, including in an interim period.	Regions is evaluating the impact upon adoption; however, the impact is not expected to be material.

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Subsequent Event

3 Months Ended

Mar. 31, 2018

Subsequent Event [Line Items]

Subsequent Events [Text Block]

SUBSEQUENT EVENT

On April 4, 2018, Regions entered into a stock purchase agreement to sell Regions Insurance Group, Inc. and related affiliates to BB&T Insurance Holdings, Inc. The transaction is expected to generate an after-tax gain of approximately $200 millionand Common Equity Tier 1 capital of approximately $300 million at closing. The transaction has been authorized by the Board of Directors of the Company and the Board of Directors of BB&T Insurance Holdings, Inc., and is anticipated to close in the third quarter of 2018, subject to regulatory approval and customary closing conditions.

The transaction purchase price is not subject to any adjustment that would have a material impact to the consolidated financial statements.

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Discontinued Operations (Tables)

3 Months Ended

Mar. 31, 2018

Discontinued Operations and Disposal Groups [Abstract]

Schedule of Condensed Results of Operations for Discontinued Operations

The following table represents the condensed results of operations for the Regions Insurance Group, Inc. entities being sold as discontinued operations:

	Three Months Ended March 31
	2018		2017
	(In millions)
Non-interest income:
Insurance commissions and fees	$	34	$	36
Total non-interest income	34		36
Non-interest expense:
Salaries and employee benefits	24		24
Net occupancy expense	1		2
Furniture and equipment expense	1		1
Other	7		7
Total non-interest expense	33		34
Income (loss) from discontinued operations before income taxes	1		2
Income tax expense (benefit)	—		1
Income (loss) from discontinued operations, net of tax	$	1	$	1

The following table represents the condensed results of operations for both the Regions Insurance Group, Inc. entities being sold and Morgan Keegan and Company, Inc. and related affiliates as discontinued operations:

	Three Months Ended March 31
	2018		2017
	(In millions, except per share data)
Income (loss) from discontinued operations before income taxes	$	—	$	13
Income tax expense (benefit)	—		5
Income (loss) from discontinued operations, net of tax	$	—	$	8
Earnings (loss) per common share from discontinued operations:
Basic	$	0.00	$	0.01
Diluted	$	0.00	$	0.01

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Securities (Tables)

3 Months Ended

Mar. 31, 2018

Investments, Debt and Equity Securities [Abstract]

Schedule Of Amortized Cost, Gross Unrealized Gains and Losses, And Estimated Fair Value Of Debt Securities Available For Sale And Debt Securities Held To Maturity [Table Text Block]

The amortized cost, gross unrealized gains and losses, and estimated fair value of debt securities held to maturity and debt securities available for sale are as follows:

	March 31, 2018
			Recognized in OCI (1)							Not Recognized in OCI
	Amortized Cost		Gross Unrealized Gains		Gross Unrealized Losses			Carrying Value		Gross Unrealized Gains		Gross Unrealized Losses			Estimated Fair Value
	(In millions)
Debt securities held to maturity:
Mortgage-backed securities:
Residential agency	$	1,010	$	—	$	(38	)	$	972	$	1	$	(13	)	$	960
Commercial agency	642		—		(3		)	639		—		(14		)	625
	$	1,652	$	—	$	(41	)	$	1,611	$	1	$	(27	)	$	1,585
Debt securities available for sale:
U.S. Treasury securities	$	333	$	—	$	(6	)	$	327						$	327
Federal agency securities	42		—		—			42							42
Mortgage-backed securities:
Residential agency	17,663		23		(534		)	17,152							17,152
Residential non-agency	2		—		—			2							2
Commercial agency	3,742		1		(82		)	3,661							3,661
Commercial non-agency	774		3		(11		)	766							766
Corporate and other debt securities	1,145		8		(18		)	1,135							1,135
	$	23,701	$	35	$	(651	)	$	23,085						$	23,085

	December 31, 2017
			Recognized in OCI (1)							Not Recognized in OCI
	Amortized Cost		Gross Unrealized Gains		Gross Unrealized Losses			Carrying Value		Gross Unrealized Gains		Gross Unrealized Losses			Estimated Fair Value
	(In millions)
Debt securities held to maturity:
Mortgage-backed securities:
Residential agency	$	1,051	$	—	$	(40	)	$	1,011	$	12	$	(4	)	$	1,019
Commercial agency	651		—		(4		)	647		5		(4		)	648
	$	1,702	$	—	$	(44	)	$	1,658	$	17	$	(8	)	$	1,667
Debt securities available for sale:
U.S. Treasury securities	$	333	$	—	$	(2	)	$	331						$	331
Federal agency securities	28		—		—			28							28
Mortgage-backed securities:
Residential agency	17,622		53		(244		)	17,431							17,431
Residential non-agency	3		—		—			3							3
Commercial agency	3,739		5		(30		)	3,714							3,714
Commercial non-agency	787		4		(3		)	788							788
Corporate and other debt securities	1,093		20		(5		)	1,108							1,108
	$	23,605	$	82	$	(284	)	$	23,403						$	23,403

_________

(1) The gross unrealized losses recognized in OCI on securities held to maturity resulted from a transfer of securities available for sale to held to maturity in the second quarter of 2013.

Schedule Of Cost And Estimated Fair Value Of Debt Securities Available For Sale And Debt Securities Held To Maturity By Contractual Maturity

The amortized cost and estimated fair value of debt securities held to maturity and debt securities available for sale at March 31, 2018, by contractual maturity, are shown below. Expected maturities will differ from contractual maturities because borrowers may have the right to call or prepay obligations with or without call or prepayment penalties.

	Amortized Cost		Estimated Fair Value
	(In millions)
Debt securities held to maturity:
Mortgage-backed securities:
Residential agency	$	1,010	$	960
Commercial agency	642		625
	$	1,652	$	1,585
Debt securities available for sale:
Due in one year or less	$	48	$	48
Due after one year through five years	964		952
Due after five years through ten years	418		414
Due after ten years	90		90
Mortgage-backed securities:
Residential agency	17,663		17,152
Residential non-agency	2		2
Commercial agency	3,742		3,661
Commercial non-agency	774		766
	$	23,701	$	23,085

Schedule Of Gross Unrealized Losses And Estimated Fair Value Of Debt Securities Available For Sale and Held to Maturity

The following tables present gross unrealized losses and the related estimated fair value of debt securities held to maturity and debt securities available for sale at March 31, 2018 and December 31, 2017. For debt securities transferred to held to maturity from available for sale, the analysis in the tables below is comparing the securities' original amortized cost to its current estimated fair value. These securities are segregated between investments that have been in a continuous unrealized loss position for less than twelve months and for twelve months or more.

	March 31, 2018
	Less Than Twelve Months					Twelve Months or More					Total
	Estimated Fair Value		Gross Unrealized Losses			Estimated Fair Value		Gross Unrealized Losses			Estimated Fair Value		Gross Unrealized Losses
	(In millions)
Debt securities held to maturity:
Mortgage-backed securities:
Residential agency	$	—	$	—		$	960	$	(51	)	$	960	$	(51	)
Commercial agency	485		(8		)	140		(9		)	625		(17		)
	$	485	$	(8	)	$	1,100	$	(60	)	$	1,585	$	(68	)
Debt securities available for sale:
U.S. Treasury securities	$	223	$	(3	)	$	87	$	(3	)	$	310	$	(6	)
Mortgage-backed securities:
Residential agency	7,524		(169		)	7,739		(365		)	15,263		(534		)
Commercial agency	2,600		(50		)	856		(32		)	3,456		(82		)
Commercial non-agency	536		(9		)	59		(2		)	595		(11		)
Corporate and other debt securities	643		(14		)	84		(4		)	727		(18		)
	$	11,526	$	(245	)	$	8,825	$	(406	)	$	20,351	$	(651	)

	December 31, 2017
	Less Than Twelve Months					Twelve Months or More					Total
	Estimated Fair Value		Gross Unrealized Losses			Estimated Fair Value		Gross Unrealized Losses			Estimated Fair Value		Gross Unrealized Losses
	(In millions)
Debt securities held to maturity:
Mortgage-backed securities:
Residential agency	$	—	$	—		$	1,019	$	(32	)	$	1,019	$	(32	)
Commercial agency	—		—			150		(7		)	150		(7		)
	$	—	$	—		$	1,169	$	(39	)	$	1,169	$	(39	)
Debt securities available for sale:
U.S. Treasury securities	$	221	$	(1	)	$	84	$	(1	)	$	305	$	(2	)
Mortgage-backed securities:
Residential agency	5,157		(40		)	8,195		(204		)	13,352		(244		)
Commercial agency	1,666		(10		)	904		(20		)	2,570		(30		)
Commercial non-agency	393		(2		)	61		(1		)	454		(3		)
Corporate and other debt securities	306		(2		)	105		(3		)	411		(5		)
	$	7,743	$	(55	)	$	9,349	$	(229	)	$	17,092	$	(284	)

Schedule of Gross Realized Gains And Gross Realized Losses On Available For Sale Debt Securities [Table Text Block]

Gross realized gains and gross realized losses on sales of debt securities available for sale are shown in the table below. The cost of securities sold is based on the specific identification method.

	Three Months Ended March 31
	2018		2017
	(In millions)
Gross realized gains	$	—	$	1
Gross realized losses	—		(1		)
Debt securities available for sale gains (losses), net	$	—	$	—

Equity Investments Measured Under Measurement Alternative[Table Text Block]

Equity investments without a readily determinable fair value primarily consist of investments in strategic partners and certain CRA projects. The carrying amount of equity investments measured under the measurement alternative, downward and upward adjustments for impairments and price changes from observable transactions are as follows:

	Three Months Ended March 31, 2018
	(In millions)
Carrying value, December 31, 2017	$	31
Net additions	—
Downward adjustments for price changes and impairment	—
Upward adjustments for price changes(1)	7
Carrying value, March 31, 2018	$	38

_________

(1) Upward adjustments for the three months ended March 31, 2018 related to an observable transaction by the same issuer in an arm's length transaction for a similar ownership interest.

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Loans and the Allowance for Credit Losses (Tables)

3 Months Ended

Mar. 31, 2018

Receivables [Abstract]

Schedule of Accounts, Notes, Loans and Financing Receivable

The following table presents the distribution of Regions' loan portfolio by segment and class, net of unearned income:

	March 31, 2018		December 31, 2017
	(In millions, net of unearned income)
Commercial and industrial	$	36,787	$	36,115
Commercial real estate mortgage—owner-occupied	6,044		6,193
Commercial real estate construction—owner-occupied	306		332
Total commercial	43,137		42,640
Commercial investor real estate mortgage	3,742		4,062
Commercial investor real estate construction	1,845		1,772
Total investor real estate	5,587		5,834
Residential first mortgage	13,892		14,061
Home equity	9,916		10,164
Indirect—vehicles	3,310		3,326
Indirect—other consumer	1,611		1,467
Consumer credit card	1,237		1,290
Other consumer	1,132		1,165
Total consumer	31,098		31,473
	$	79,822	$	79,947

Analysis of the Allowance for Credit Losses by Portfolio Segment

The following tables present analyses of the allowance for credit losses by portfolio segment for the three months ended March 31, 2018 and 2017. The total allowance for loan losses and the related loan portfolio ending balances are disaggregated to detail the amounts derived through individual evaluation and collective evaluation for impairment. The allowance for loan losses related to individually evaluated loans is attributable to reserves for non-accrual commercial and investor real estate loans and all TDRs. The allowance for loan losses and the loan portfolio ending balances related to collectively evaluated loans is attributable to the remainder of the portfolio.

	Three Months Ended March 31, 2018
	Commercial			Investor Real Estate			Consumer			Total
	(In millions)
Allowance for loan losses, January 1, 2018	$	591		$	64		$	279		$	934
Provision (credit) for loan losses	(24		)	(4		)	18			(10		)
Loan losses:
Charge-offs	(30		)	(8		)	(74		)	(112		)
Recoveries	10			2			16			28
Net loan losses	(20		)	(6		)	(58		)	(84		)
Allowance for loan losses, March 31, 2018	547			54			239			840
Reserve for unfunded credit commitments, January 1, 2018	49			4			—			53
Provision (credit) for unfunded credit losses	(4		)	—			—			(4		)
Reserve for unfunded credit commitments, March 31, 2018	45			4			—			49
Allowance for credit losses, March 31, 2018	$	592		$	58		$	239		$	889
Portion of ending allowance for loan losses:
Individually evaluated for impairment	$	150		$	10		$	29		$	189
Collectively evaluated for impairment	397			44			210			651
Total allowance for loan losses	$	547		$	54		$	239		$	840
Portion of loan portfolio ending balance:
Individually evaluated for impairment	$	700		$	96		$	476		$	1,272
Collectively evaluated for impairment	42,437			5,491			30,622			78,550
Total loans evaluated for impairment	$	43,137		$	5,587		$	31,098		$	79,822

	Three Months Ended March 31, 2017
	Commercial			Investor Real Estate			Consumer			Total
	(In millions)
Allowance for loan losses, January 1, 2017	$	753		$	85		$	253		$	1,091
Provision (credit) for loan losses	26			1			43			70
Loan losses:
Charge-offs	(58		)	(1		)	(65		)	(124		)
Recoveries	6			2			16			24
Net loan losses	(52		)	1			(49		)	(100		)
Allowance for loan losses, March 31, 2017	727			87			247			1,061
Reserve for unfunded credit commitments, January 1, 2017	64			5			—			69
Provision (credit) for unfunded credit losses	2			(1		)	—			1
Reserve for unfunded credit commitments, March 31, 2017	66			4			—			70
Allowance for credit losses, March 31, 2017	$	793		$	91		$	247		$	1,131
Portion of ending allowance for loan losses:
Individually evaluated for impairment	$	228		$	17		$	56		$	301
Collectively evaluated for impairment	499			70			191			760
Total allowance for loan losses	$	727		$	87		$	247		$	1,061
Portion of loan portfolio ending balance:
Individually evaluated for impairment	$	1,103		$	126		$	760		$	1,989
Collectively evaluated for impairment	41,139			6,356			30,385			77,880
Total loans evaluated for impairment	$	42,242		$	6,482		$	31,145		$	79,869

Financing Receivable Credit Quality Indicators

	March 31, 2018
	Pass		Special  Mention		Substandard Accrual		Non-accrual		Total
	(In millions)
Commercial and industrial	$	35,216	$	609	$	598	$	364	$	36,787
Commercial real estate mortgage—owner-occupied	5,558		250		134		102		6,044
Commercial real estate construction—owner-occupied	288		3		10		5		306
Total commercial	$	41,062	$	862	$	742	$	471	$	43,137
Commercial investor real estate mortgage	$	3,646	$	48	$	34	$	14	$	3,742
Commercial investor real estate construction	1,793		15		37		—		1,845
Total investor real estate	$	5,439	$	63	$	71	$	14	$	5,587
					Accrual		Non-accrual		Total
					(In millions)
Residential first mortgage					$	13,845	$	47	$	13,892
Home equity					9,847		69		9,916
Indirect—vehicles					3,310		—		3,310
Indirect—other consumer					1,611		—		1,611
Consumer credit card					1,237		—		1,237
Other consumer					1,132		—		1,132
Total consumer					$	30,982	$	116	$	31,098
									$	79,822

	December 31, 2017
	Pass		Special Mention		Substandard Accrual		Non-accrual		Total
	(In millions)
Commercial and industrial	$	34,420	$	686	$	605	$	404	$	36,115
Commercial real estate mortgage—owner-occupied	5,674		236		165		118		6,193
Commercial real estate construction—owner-occupied	313		3		10		6		332
Total commercial	$	40,407	$	925	$	780	$	528	$	42,640
Commercial investor real estate mortgage	$	3,905	$	63	$	89	$	5	$	4,062
Commercial investor real estate construction	1,706		19		46		1		1,772
Total investor real estate	$	5,611	$	82	$	135	$	6	$	5,834
					Accrual		Non-accrual		Total
					(In millions)
Residential first mortgage					$	14,014	$	47	$	14,061
Home equity					10,095		69		10,164
Indirect—vehicles					3,326		—		3,326
Indirect—other consumer					1,467		—		1,467
Consumer credit card					1,290		—		1,290
Other consumer					1,165		—		1,165
Total consumer					$	31,357	$	116	$	31,473
									$	79,947

Past Due Financing Receivables

The following tables include an aging analysis of DPD for each portfolio segment and class as of March 31, 2018 and December 31, 2017:

	March 31, 2018
	Accrual Loans
	30-59 DPD		60-89 DPD		90+ DPD		Total 30+ DPD		Total Accrual		Non-accrual		Total
	(In millions)
Commercial and industrial	$	42	$	28	$	5	$	75	$	36,423	$	364	$	36,787
Commercial real estate mortgage—owner-occupied	25		3		1		29		5,942		102		6,044
Commercial real estate construction—owner-occupied	—		—		—		—		301		5		306
Total commercial	67		31		6		104		42,666		471		43,137
Commercial investor real estate mortgage	1		—		—		1		3,728		14		3,742
Commercial investor real estate construction	—		29		—		29		1,845		—		1,845
Total investor real estate	1		29		—		30		5,573		14		5,587
Residential first mortgage	78		42		196		316		13,845		47		13,892
Home equity	62		22		33		117		9,847		69		9,916
Indirect—vehicles	39		10		8		57		3,310		—		3,310
Indirect—other consumer	8		5		—		13		1,611		—		1,611
Consumer credit card	10		7		17		34		1,237		—		1,237
Other consumer	11		4		5		20		1,132		—		1,132
Total consumer	208		90		259		557		30,982		116		31,098
	$	276	$	150	$	265	$	691	$	79,221	$	601	$	79,822

	December 31, 2017
	Accrual Loans
	30-59 DPD		60-89 DPD		90+ DPD		Total 30+ DPD		Total Accrual		Non-accrual		Total
	(In millions)
Commercial and industrial	$	28	$	7	$	4	$	39	$	35,711	$	404	$	36,115
Commercial real estate mortgage—owner-occupied	18		8		1		27		6,075		118		6,193
Commercial real estate construction—owner-occupied	—		—		—		—		326		6		332
Total commercial	46		15		5		66		42,112		528		42,640
Commercial investor real estate mortgage	1		1		1		3		4,057		5		4,062
Commercial investor real estate construction	—		—		—		—		1,771		1		1,772
Total investor real estate	1		1		1		3		5,828		6		5,834
Residential first mortgage	95		85		216		396		14,014		47		14,061
Home equity	53		27		37		117		10,095		69		10,164
Indirect—vehicles	48		13		9		70		3,326		—		3,326
Indirect—other consumer	9		5		—		14		1,467		—		1,467
Consumer credit card	11		7		19		37		1,290		—		1,290
Other consumer	13		4		4		21		1,165		—		1,165
Total consumer	229		141		285		655		31,357		116		31,473
	$	276	$	157	$	291	$	724	$	79,297	$	650	$	79,947

Impaired Financing Receivables

The following tables present details related to the Company’s impaired loans as of March 31, 2018 and December 31, 2017. Loans deemed to be impaired include all TDRs and all non-accrual commercial and investor real estate loans, excluding leases. Loans that have been fully charged-off do not appear in the tables below.

	Non-accrual Impaired Loans As of March 31, 3018
					Book Value(3)
	Unpaid Principal Balance(1)		Charge-offs and Payments Applied(2)		Total Impaired Loans on Non-accrual Status		Impaired Loans on Non-accrual Status with No Related Allowance		Impaired Loans on Non-accrual Status with Related Allowance		Related Allowance for Loan Losses		Coverage %(4)
	(Dollars in millions)
Commercial and industrial	$	441	$	81	$	360	$	31	$	329	$	89	38.5	%
Commercial real estate mortgage—owner-occupied	113		11		102		18		84		33		38.9
Commercial real estate construction—owner-occupied	5		—		5		—		5		2		40.0
Total commercial	559		92		467		49		418		124		38.6
Commercial investor real estate mortgage	22		8		14		1		13		5		59.1
Commercial investor real estate construction	1		1		—		—		—		—		100.0
Total investor real estate	23		9		14		1		13		5		60.9
Residential first mortgage	41		10		31		—		31		3		31.7
Home equity	10		1		9		—		9		—		10.0
Total consumer	51		11		40		—		40		3		27.5
	$	633	$	112	$	521	$	50	$	471	$	132	38.5	%

	Accruing Impaired Loans As of March 31, 2018
	Unpaid Principal Balance(1)		Charge-offs and Payments Applied(2)		Book Value(3)		Related Allowance for Loan Losses		Coverage %(4)
	(Dollars in millions)
Commercial and industrial	$	181	$	7	$	174	$	22	16.0	%
Commercial real estate mortgage—owner-occupied	63		5		58		4		14.3
Commercial real estate construction—owner-occupied	1		—		1		—		—
Total commercial	245		12		233		26		15.5
Commercial investor real estate mortgage	55		2		53		2		7.3
Commercial investor real estate construction	29		—		29		3		10.3
Total investor real estate	84		2		82		5		8.3
Residential first mortgage	194		6		188		18		12.4
Home equity	240		1		239		8		3.8
Consumer credit card	1		—		1		—		—
Other consumer	8		—		8		—		—
Total consumer	443		7		436		26		7.4
	$	772	$	21	$	751	$	57	10.1	%

	Total Impaired Loans As of March 31, 2018
					Book Value(3)
	Unpaid Principal Balance(1)		Charge-offs and Payments Applied(2)		Total Impaired Loans		Impaired Loans with No Related Allowance		Impaired Loans with Related Allowance		Related Allowance for Loan Losses		Coverage %(4)
	(Dollars in millions)
Commercial and industrial	$	622	$	88	$	534	$	31	$	503	$	111	32.0	%
Commercial real estate mortgage—owner-occupied	176		16		160		18		142		37		30.1
Commercial real estate construction—owner-occupied	6		—		6		—		6		2		33.3
Total commercial	804		104		700		49		651		150		31.6
Commercial investor real estate mortgage	77		10		67		1		66		7		22.1
Commercial investor real estate construction	30		1		29		—		29		3		13.3
Total investor real estate	107		11		96		1		95		10		19.6
Residential first mortgage	235		16		219		—		219		21		15.7
Home equity	250		2		248		—		248		8		4.0
Consumer credit card	1		—		1		—		1		—		—
Other consumer	8		—		8		—		8		—		—
Total consumer	494		18		476		—		476		29		9.5
	$	1,405	$	133	$	1,272	$	50	$	1,222	$	189	22.9	%

	Non-accrual Impaired Loans As of December 31, 2017
					Book Value(3)
	Unpaid Principal Balance(1)		Charge-offs and Payments Applied(2)		Total Impaired Loans on Non-accrual Status		Impaired Loans on Non-accrual Status with No Related Allowance		Impaired Loans on Non-accrual Status with Related Allowance		Related Allowance for Loan Losses		Coverage %(4)
	(Dollars in millions)
Commercial and industrial	$	480	$	80	$	400	$	29	$	371	$	103	38.1	%
Commercial real estate mortgage—owner-occupied	133		15		118		20		98		38		39.8
Commercial real estate construction—owner-occupied	7		1		6		—		6		3		57.1
Total commercial	620		96		524		49		475		144		38.7
Commercial investor real estate mortgage	6		1		5		—		5		2		50.0
Commercial investor real estate construction	1		—		1		—		1		—		—
Total investor real estate	7		1		6		—		6		2		42.9
Residential first mortgage	42		11		31		—		31		3		33.3
Home equity	10		1		9		—		9		—		10.0
Total consumer	52		12		40		—		40		3		28.8
	$	679	$	109	$	570	$	49	$	521	$	149	38.0	%

	Accruing Impaired Loans As of December 31, 2017
					Book Value(3)
	Unpaid Principal Balance(1)		Charge-offs and Payments Applied(2)		Total Impaired Loans on Accrual Status		Impaired Loans on Accrual Status with No Related Allowance		Impaired Loans on Accrual Status with Related Allowance		Related Allowance for Loan Losses		Coverage %(4)
	(Dollars in millions)
Commercial and industrial	$	154	$	8	$	146	$	1	$	145	$	19	17.5	%
Commercial real estate mortgage—owner-occupied	90		5		85		—		85		8		14.4
Commercial real estate construction—owner-occupied	1		—		1		—		1		—		—
Total commercial	245		13		232		1		231		27		16.3
Commercial investor real estate mortgage	63		2		61		—		61		3		7.9
Commercial investor real estate construction	29		—		29		—		29		3		10.3
Total investor real estate	92		2		90		—		90		6		8.7
Residential first mortgage	419		13		406		—		406		39		12.4
Home equity	251		1		250		—		250		5		2.4
Consumer credit card	1		—		1		—		1		—		—
Other consumer	9		—		9		—		9		—		—
Total consumer	680		14		666		—		666		44		8.5
	$	1,017	$	29	$	988	$	1	$	987	$	77	10.4	%

	Total Impaired Loans As of December 31, 2017
					Book Value(3)
	Unpaid Principal Balance(1)		Charge-offs and Payments Applied(2)		Total Impaired Loans		Impaired Loans with No Related Allowance		Impaired Loans with Related Allowance		Related Allowance for Loan Losses		Coverage %(4)
	(Dollars in millions)
Commercial and industrial	$	634	$	88	$	546	$	30	$	516	$	122	33.1	%
Commercial real estate mortgage—owner-occupied	223		20		203		20		183		46		29.6
Commercial real estate construction—owner-occupied	8		1		7		—		7		3		50.0
Total commercial	865		109		756		50		706		171		32.4
Commercial investor real estate mortgage	69		3		66		—		66		5		11.6
Commercial investor real estate construction	30		—		30		—		30		3		10.0
Total investor real estate	99		3		96		—		96		8		11.1
Residential first mortgage	461		24		437		—		437		42		14.3
Home equity	261		2		259		—		259		5		2.7
Consumer credit card	1		—		1		—		1		—		—
Other consumer	9		—		9		—		9		—		—
Total consumer	732		26		706		—		706		47		10.0
	$	1,696	$	138	$	1,558	$	50	$	1,508	$	226	21.5	%

________

(1) Unpaid principal balance represents the contractual obligation due from the customer and includes the net book value plus charge-offs and payments applied.

(2) Charge-offs and payments applied represents cumulative partial charge-offs taken, as well as interest payments received that have been applied against the outstanding principal balance.

(3) Book value represents the unpaid principal balance less charge-offs and payments applied; it is shown before any allowance for loan losses.

(4) Coverage % represents charge-offs and payments applied plus the related allowance as a percent of the unpaid principal balance.

The following table presents the average balances of total impaired loans and interest income for the three months ended March 31, 2018 and 2017. Interest income recognized represents interest on accruing loans modified in a TDR.

	Three Months Ended March 31
	2018				2017
	Average Balance		Interest Income Recognized		Average Balance		Interest Income Recognized
	(In millions)
Commercial and industrial	$	533	$	3	$	819	$	2
Commercial real estate mortgage—owner-occupied	166		3		264		1
Commercial real estate construction—owner-occupied	6		—		6		—
Total commercial	705		6		1,089		3
Commercial investor real estate mortgage	76		1		91		1
Commercial investor real estate construction	30		—		33		—
Total investor real estate	106		1		124		1
Residential first mortgage	288		2		455		4
Home equity	252		3		295		4
Consumer credit card	1		—		2		—
Other consumer	8		—		10		—
Total consumer	549		5		762		8
Total impaired loans	$	1,360	$	12	$	1,975	$	12

Troubled Debt Restructurings on Financing Receivables

The following tables present the end of period balance for loans modified in a TDR during the periods presented by portfolio segment and class, and the financial impact of those modifications. The tables include modifications made to new TDRs, as well as renewals of existing TDRs. Loans first reported as TDRs during the three months ended March 31, 2018 and 2017 totaled approximately $171 million and $128 million, respectively.

	Three Months Ended March 31, 2018
				Financial Impact of Modifications Considered TDRs
	Number of Obligors	Recorded Investment		Increase in Allowance at Modification
	(Dollars in millions)
Commercial and industrial	29	$	164	$	2
Commercial real estate mortgage—owner-occupied	18	14		—
Total commercial	47	178		2
Commercial investor real estate mortgage	10	19		1
Total investor real estate	10	19		1
Residential first mortgage	53	8		1
Home equity	17	1		—
Consumer credit card	14	—		—
Indirect—vehicles and other consumer	13	—		—
Total consumer	97	9		1
	154	$	206	$	4

	Three Months Ended March 31, 2017
				Financial Impact of Modifications Considered TDRs
	Number of Obligors	Recorded Investment		Increase in Allowance at Modification
	(Dollars in millions)
Commercial and industrial	31	$	99	$	3
Commercial real estate mortgage—owner-occupied	31	28		1
Commercial real estate construction—owner-occupied	2	1		—
Total commercial	64	128		4
Commercial investor real estate mortgage	12	19		—
Commercial investor real estate construction	3	26		1
Total investor real estate	15	45		1
Residential first mortgage	49	8		1
Home equity	58	5		—
Consumer credit card	19	—		—
Indirect—vehicles and other consumer	47	1		—
Total consumer	173	14		1
	252	$	187	$	6

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Servicing of Financial Assets (Tables)

3 Months Ended

Mar. 31, 2018

Transfers and Servicing of Financial Assets [Abstract]

Schedule of Residential Mortgage Servicing Rights Under The Fair Value Measurement Method

The table below presents an analysis of residential MSRs under the fair value measurement method:

	Three Months Ended March 31
	2018			2017
	(In millions)
Carrying value, beginning of period	$	336		$	324
Additions	8			8
Increase (decrease) in fair value:
Due to change in valuation inputs or assumptions	22			4
Economic amortization associated with borrower repayments (1)	(10		)	(10		)
Carrying value, end of period	$	356		$	326

________

(1) "Economic amortization associated with borrower repayments" includes both total loan payoffs as well as partial paydowns.

Data And Assumptions Used In The Fair Value Calculation As Well As The Valuation's Sensitivity To Rate Fluctuations Related To Residential Mortgage Servicing Rights

Data and assumptions used in the fair value calculation, as well as the valuation’s sensitivity to rate fluctuations, related to residential MSRs (excluding related derivative instruments) are as follows:

	March 31
	2018			2017
	(Dollars in millions)
Unpaid principal balance	$	31,641		$	30,960
Weighted-average CPR (%)	9.0		%	7.6		%
Estimated impact on fair value of a 10% increase	$	(24	)	$	(19	)
Estimated impact on fair value of a 20% increase	$	(43	)	$	(34	)
Option-adjusted spread (basis points)	842			1,058
Estimated impact on fair value of a 10% increase	$	(12	)	$	(13	)
Estimated impact on fair value of a 20% increase	$	(24	)	$	(27	)
Weighted-average coupon interest rate	4.1		%	4.2		%
Weighted-average remaining maturity (months)	280			280
Weighted-average servicing fee (basis points)	27.3			27.4

Schedule Of Fees Resulting From The Servicing Of Residential Mortgage Loans

The following table presents servicing related fees, which includes contractually specified servicing fees, late fees and other ancillary income resulting from the servicing of residential mortgage loans:

	Three Months Ended March 31
	2018		2017
	(In millions)
Servicing related fees and other ancillary income	$	23	$	23

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Goodwill (Tables)

3 Months Ended

Mar. 31, 2018

Goodwill and Intangible Assets Disclosure [Abstract]

Schedule of Goodwill

Goodwill allocated to each reportable segment (each a reporting unit) is presented as follows:

	March 31, 2018		December 31, 2017
	(In millions)
Corporate Bank	$	2,474	$	2,474
Consumer Bank	1,978		1,978
Wealth Management	452		452
	$	4,904	$	4,904

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Stockholders' Equity and Accumulated Other Comprehensive Income (Loss) (Tables)

3 Months Ended

Mar. 31, 2018

Equity [Abstract]

Summary of the non-cumulative perpetual preferred stock

The following table presents a summary of the non-cumulative perpetual preferred stock:

								March 31, 2018		December 31, 2017
	Issuance Date	Earliest Redemption Date	Dividend Rate			Liquidation Amount		Carrying Amount		Carrying Amount
	(Dollars in millions)
Series A	11/1/2012	12/15/2017	6.375	%		$	500	$	387	$	387
Series B	4/29/2014	9/15/2024	6.375	%	(1)	500		433		433
						$	1,000	$	820	$	820

_________

(1) Dividends, if declared, will be paid quarterly at an annual rate equal to (i) for each period beginning prior to September 15, 2024, 6.375%, and (ii) for each period beginning on or after September 15, 2024, three-month LIBOR plus 3.536%.

Schedule of Accumulated Other Comprehensive Income (Loss)

Activity within the balances in accumulated other comprehensive income (loss), net is shown in the following tables:

	Three Months Ended March 31, 2018
	Unrealized losses on securities transferred to held to maturity			Unrealized gains (losses) on securities available for sale			Unrealized gains (losses) on derivative instruments designated as cash flow hedges			Defined benefit pension plans and other post employment benefits			Accumulated other comprehensive income (loss), net of tax
	(In millions)
Beginning of period	$	(33	)	$	(153	)	$	(51	)	$	(512	)	$	(749	)
Net change	2			(310		)	(100		)	6			(402		)
End of period	$	(31	)	$	(463	)	$	(151	)	$	(506	)	$	(1,151	)

	Three Months Ended March 31, 2017
	Unrealized losses on securities transferred to held to maturity			Unrealized gains (losses) on securities available for sale			Unrealized gains (losses) on derivative instruments designated as cash flow hedges			Defined benefit pension plans and other post employment benefits			Accumulated other comprehensive income (loss), net of tax
	(In millions)
Beginning of period	$	(33	)	$	(106	)	$	11		$	(422	)	$	(550	)
Net change	2			1			(23		)	5			(15		)
End of period	$	(31	)	$	(105	)	$	(12	)	$	(417	)	$	(565	)

Reclassification From Accumulated Other Comprehensive Income (Loss)

The following table presents amounts reclassified out of accumulated other comprehensive income (loss) for the three months ended March 31, 2018 and 2017:

	Three Months Ended March 31, 2018			Three Months Ended March 31, 2017
Details about Accumulated Other Comprehensive Income (Loss) Components	Amount Reclassified from Accumulated Other Comprehensive Income (Loss)(1)			Amount Reclassified from Accumulated Other Comprehensive Income (Loss)(1)			Affected Line Item in the Consolidated Statements of Income
	(In millions)
Unrealized losses on securities transferred to held to maturity:
	$	(3	)	$	(3	)	Net interest income and other financing income
	1			1			Tax (expense) or benefit
	$	(2	)	$	(2	)	Net of tax
Unrealized gains and (losses) on available for sale securities:
	$	—		$	—		Securities gains (losses), net
	—			—			Tax (expense) or benefit
	$	—		$	—		Net of tax
Gains and (losses) on cash flow hedges:
Interest rate contracts	$	11		$	31		Net interest income and other financing income
	(3		)	(12		)	Tax (expense) or benefit
	$	8		$	19		Net of tax
Amortization of defined benefit pension plans and other post employment benefits:
Actuarial gains (losses)	$	(9	)	$	(9	)	(2)
	(9		)	(9		)	Total before tax
	2			3			Tax (expense) or benefit
	$	(7	)	$	(6	)	Net of tax
Total reclassifications for the period	$	(1	)	$	11		Net of tax

________

(1) Amounts in parentheses indicate reductions to net income.

(2) This accumulated other comprehensive income (loss) component is included in the computation of net periodic pension cost and is included in other non-interest expense on the consolidated statements of income (see Note 9 for additional details).

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Earnings (Loss) Per Common Share (Tables)

3 Months Ended

Mar. 31, 2018

Earnings Per Share [Abstract]

Schedule of Earnings Per Share, Basic and Diluted

The following table sets forth the computation of basic earnings (loss) per common share and diluted earnings (loss) per common share:

	Three Months Ended March 31
	2018			2017
	(In millions, except per share amounts)
Numerator:
Income from continuing operations	$	414		$	293
Preferred stock dividends	(16		)	(16		)
Income from continuing operations available to common shareholders	398			277
Income (loss) from discontinued operations, net of tax	—			8
Net income available to common shareholders	$	398		$	285
Denominator:
Weighted-average common shares outstanding—basic	1,127			1,209
Potential common shares	14			15
Weighted-average common shares outstanding—diluted	1,141			1,224
Earnings per common share from continuing operations available to common shareholders(1):
Basic	$	0.35		$	0.23
Diluted	0.35			0.23
Earnings (loss) per common share from discontinued operations(1):
Basic	$	0.00		$	0.01
Diluted	0.00			0.01
Earnings per common share(1):
Basic	$	0.35		$	0.24
Diluted	0.35			0.23

________

(1)  Certain per share amounts may not appear to reconcile due to rounding.

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Pension and Other Postretirement Benefits (Tables)

3 Months Ended

Mar. 31, 2018

Defined Benefit Plan [Abstract]

Schedule of Net Periodic Pension Cost

Net periodic pension cost (credit) includes the following components:

	Qualified Plans						Non-qualified Plans				Total
	Three Months Ended March 31
	2018			2017			2018		2017		2018			2017
	(In millions)
Service cost	$	9		$	8		$	1	$	1	$	10		$	9
Interest cost	18			18			1		1		19			19
Expected return on plan assets	(37		)	(35		)	—		—		(37		)	(35		)
Amortization of actuarial loss	8			8			1		1		9			9
Net periodic pension cost (credit)	$	(2	)	$	(1	)	$	3	$	3	$	1		$	2

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Derivative Financial Instruments and Hedging Activities (Tables)

3 Months Ended

Mar. 31, 2018

Derivative Instruments and Hedging Activities Disclosure [Abstract]

Schedule Of Derivative Instruments Notional And Fair Values

The following tables present the notional amount and estimated fair value of derivative instruments on a gross basis as of March 31, 2018 and December 31, 2017. Beginning in the first quarter of 2018, variation margin payments made for derivatives cleared through LCH Limited are legally characterized as settlements of the derivatives. Exchange traded derivatives cleared through LCH Limited were not offset prior to January 2018.

	March 31, 2018						December 31, 2017
	Notional Amount		Estimated Fair Value				Notional Amount		Estimated Fair Value
			Gain(1)		Loss(1)				Gain(1)		Loss(1)
	(In millions)
Derivatives in fair value hedging relationships:
Interest rate swaps	$	3,597					$	3,060	$	1	$	43
Derivatives in cash flow hedging relationships:
Interest rate swaps	7,825						6,825		5		188
Total derivatives designated as hedging instruments	$	11,422					$	9,885	$	6	$	231
Derivatives not designated as hedging instruments:
Interest rate swaps	$	41,166	$	140	$	307	$	40,841	$	308	$	342
Interest rate options	5,063		39		23		4,598		23		15
Interest rate futures and forward commitments	42,341		10		11		20,404		6		5
Other contracts	6,066		59		55		5,721		51		48
Total derivatives not designated as hedging instruments	$	94,636	$	248	$	396	$	71,564	$	388	$	410
Total derivatives	$	106,058	$	248	$	396	$	81,449	$	394	$	641
Total gross derivative instruments, before netting			$	248	$	396			$	394	$	641
Less: Legally enforceable master netting agreements			112		112				107		107
Less: Cash collateral received/posted			30		113				34		131
Total gross derivative instruments, after netting (2)			$	106	$	171			$	253	$	403

_________

(1) Derivatives in a gain position are recorded as other assets and derivatives in a loss position are recorded as other liabilities on the consolidated balance sheets. There is no fair value presented for contracts that are characterized as settled daily.

(2) As of March 31, 2018, financial instruments posted of $49 million were not offset in the consolidated balance sheets. As of December 31, 2017, cash collateral posted of $257 million and financial instruments posted of $50 million were not offset in the consolidated balance sheets.

Schedule Of Effect Of Hedging Derivative Instruments On Statements Of Operations

The following tables present the effect of hedging derivative instruments on the consolidated statements of income:

	Three Months Ended March 31, 2018
	Interest Income					Interest Expense					Non-interest expense
	Debt securities-taxable			Loans, including fees		Deposits		Long-term borrowings			Other
Total amounts presented in the consolidated statements of income	$	154		$	851	$	49	$	72		$	225
Gains/(losses) on fair value hedging relationships:
Interest rate contracts:
Amounts related to interest settlements on derivatives	$	—		$	—	$	—	$	(1	)	$	—
Recognized on derivatives	3			—		—		(32		)	—
Recognized on hedged items	(3		)	—		—		32			—
Net income (expense) recognized on fair value hedges	$	—		$	—	$	—	$	(1	)	$	—
Gains/(losses) on cash flow hedging relationships: (1)
Interest rate contracts:
Realized gains (losses) reclassified from AOCI into net income (2)	$	—		$	11	$	—	$	—		$	—
Net income (expense) recognized on cash flow hedges	$	—		$	11	$	—	$	—		$	—

	Three Months Ended March 31, 2017
	Interest Income					Interest Expense				Non-interest expense
	Securities-taxable			Loans, including fees		Deposits		Long-term borrowings		Other
Total amounts presented in the consolidated statements of income	$	147		$	773	$	35	$	50	$	220
Gains/(losses) on fair value hedging relationships:
Interest rate contracts:
Amounts related to interest settlements on derivatives	$	(1	)	$	—	$	—	$	1	$	—
Recognized on derivatives	—			—		—		—		—
Recognized on hedged items	—			—		—		—		—
Net income (expense) recognized on fair value hedges	$	(1	)	$	—	$	—	$	1	$	—
Gains/(losses) on cash flow hedging relationships: (1)
Interest rate contracts:
Realized gains (losses) reclassified from AOCI into net income (2)	$	—		$	31	$	—	$	—	$	—
Net income (expense) recognized on cash flow hedges	$	—		$	31	$	—	$	—	$	—

_____

(1) See Note 7 for gain or (loss) recognized for cash flow hedges in AOCI.

(2) Pre-tax

Schedule of Fair Value Hedging Basis Adjustments [Table Text Block]

The following table presents the carrying amount and associated cumulative basis adjustment related to the application of hedge accounting that is included in the carrying amount of hedged assets and liabilities in fair value hedging relationships.

	March 31, 2018
	Hedged Items Currently Designated						Hedged Items No Longer Designated
	Carrying Amount of Assets/(Liabilities)			Hedge Accounting Basis Adjustment Assets/(Liabilities)			Carrying Amount of Assets/(Liabilities)			Hedge Accounting Basis Adjustment Assets/(Liabilities)
	(In millions)
Debt securities available for sale	$	210		$	(3	)	$	577		$	7
Long-term borrowings	(3,321		)	82			(101		)	—

Schedule of Gains (Losses) Recognized Related to Derivatives Not Designated as Hedging Instruments

The following table presents the location and amount of gain or (loss) recognized in income on derivatives not designated as hedging instruments in the consolidated statements of income for the three months ended March 31, 2017 and 2017:

	Three Months Ended March 31
Derivatives Not Designated as Hedging Instruments	2018			2017
	(In millions)
Capital markets fee income and other(1):
Interest rate swaps	$	7		$	2
Interest rate options	7			2
Interest rate futures and forward commitments	1			2
Other contracts	2			(8		)
Total capital markets fee income and other	17			(2		)
Mortgage income:
Interest rate swaps	(18		)	(2		)
Interest rate options	3			2
Interest rate futures and forward commitments	(3		)	(8		)
Total mortgage income	(18		)	(8		)
	$	(1	)	$	(10	)

______

(1) Capital markets fee income and other is included in Other income on the consolidated statements of income.

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Fair Value Measurements (Tables)

3 Months Ended

Mar. 31, 2018

Fair Value Disclosures [Abstract]

Schedule Of Assets And Liabilities At Fair Value Measured On A Recurring Basis And Non-Recurring Basis

The following table presents assets and liabilities measured at estimated fair value on a recurring basis and non-recurring basis as of March 31, 2018 and December 31, 2017:

	March 31, 2018								December 31, 2017
	Level 1		Level 2		Level 3(1)		Total Estimated Fair Value		Level 1		Level 2		Level 3(1)		Total Estimated Fair Value
	(In millions)
Recurring fair value measurements
Debt securities available for sale:
U.S. Treasury securities	$	327	$	—	$	—	$	327	$	331	$	—	$	—	$	331
Federal agency securities	—		42		—		42		—		28		—		28
Mortgage-backed securities (MBS):
Residential agency	—		17,152		—		17,152		—		17,431		—		17,431
Residential non-agency	—		—		2		2		—		—		3		3
Commercial agency	—		3,661		—		3,661		—		3,714		—		3,714
Commercial non-agency	—		766		—		766		—		788		—		788
Corporate and other debt securities	—		1,132		3		1,135		—		1,105		3		1,108
Total debt securities available for sale	$	327	$	22,753	$	5	$	23,085	$	331	$	23,066	$	6	$	23,403
Loans held for sale	$	—	$	282	$	—	$	282	$	—	$	325	$	—	$	325
Marketable equity securities(2)	$	525	$	—	$	—	$	525	$	414	$	—	$	—	$	414
Residential mortgage servicing rights	$	—	$	—	$	356	$	356	$	—	$	—	$	336	$	336
Derivative assets:
Interest rate swaps	$	—	$	140	$	—	$	140	$	—	$	314	$	—	$	314
Interest rate options	—		26		13		39		—		18		5		23
Interest rate futures and forward commitments	—		10		—		10		—		6		—		6
Other contracts	2		57		—		59		2		49		—		51
Total derivative assets	$	2	$	233	$	13	$	248	$	2	$	387	$	5	$	394
Derivative liabilities:
Interest rate swaps	$	—	$	307	$	—	$	307	$	—	$	573	$	—	$	573
Interest rate options	—		23		—		23		—		15		—		15
Interest rate futures and forward commitments	—		11		—		11		—		5		—		5
Other contracts	2		53		—		55		2		46		—		48
Total derivative liabilities	$	2	$	394	$	—	$	396	$	2	$	639	$	—	$	641
Non-recurring fair value measurements
Loans held for sale	$	—	$	—	$	7	$	7	$	—	$	—	$	20	$	20
Equity investments without a readily determinable fair value(3)	—		—		13		13		—		—		—		—
Foreclosed property and other real estate	—		18		4		22		—		24		9		33

_________

(1) All following disclosures related to Level 3 recurring and non-recurring assets do not include those deemed to be immaterial.

(2) Marketable equity securities were reclassified from trading account securities and securities available for sale to other earning assets, beginning in the first quarter of 2018, with the adoption of new accounting guidance. Prior periods have been reclassified to conform to current period presentation.

(3) With the adoption of new accounting guidance, effective January 1, 2018, equity investments without a readily determinable fair value are required to be adjusted prospectively to estimated fair value when an observable price transaction for a same or similar investment with the same issuer occurs.

Rollforward For Assets And Liabilities Measured At Fair Value On A Recurring Basis With Level 3 Significant Unobservable Inputs

The following tables illustrate rollforwards for all material assets and liabilities measured at fair value on a recurring basis using significant unobservable inputs (Level 3) for the three months ended March 31, 2018 and 2017, respectively. The net changes in realized gains (losses) included in earnings related to Level 3 assets and liabilities held at March 31, 2018 and 2017 are not material.

	Three Months Ended March 31, 2018
	Opening Balance January 1, 2018		Total Realized / Unrealized Gains or Losses			Purchases	Sales	Issuances	Settlements	Transfers into Level 3	Transfers out of Level 3	Closing Balance March 31, 2018
			Included in Earnings		Included in Other Compre- hensive Income (Loss)
	(In millions)
Level 3 Instruments Only
Residential mortgage servicing rights	$	336	12	(1)	—	8	—	—	—	—	—	$	356

	Three Months Ended March 31, 2017
	Opening Balance January 1, 2017		Total Realized / Unrealized Gains or Losses				Purchases	Sales	Issuances	Settlements	Transfers into Level 3	Transfers out of Level 3	Closing Balance March 31, 2017
			Included in Earnings			Included in Other Compre- hensive Income (Loss)
	(In millions)
Level 3 Instruments Only
Residential mortgage servicing rights	$	324	(6	)	(1)	—	8	—	—	—	—	—	$	326

_________

(1) Included in mortgage income.

Schedule Of Fair Value Adjustments Related To Non-Recurring Fair Value Measurements

The following table presents the fair value adjustments related to non-recurring fair value measurements:

	Three Months Ended March 31
	2018			2017
	(In millions)
Loans held for sale	$	(3	)	$	(4	)
Foreclosed property and other real estate	(5		)	(4		)
Equity investments without a readily determinable fair value	7			—

Summary Of Quantitative Information About Level 3 Measurements

The following tables present detailed information regarding material assets and liabilities measured at fair value using significant unobservable inputs (Level 3) as of March 31, 2018, and December 31, 2017. The tables include the valuation techniques and the significant unobservable inputs utilized. The range of each significant unobservable input as well as the weighted-average within the range utilized at March 31, 2018, and December 31, 2017, are included. Following the tables are descriptions of the valuation techniques and the sensitivity of the techniques to changes in the significant unobservable inputs.

	March 31, 2018
	Level 3 Estimated Fair Value at March 31, 2018	Valuation Technique	Unobservable Input(s)	Quantitative Range of Unobservable Inputs and (Weighted-Average)
	(Dollars in millions)
Recurring fair value measurements:
Residential mortgage servicing rights(1)	$356	Discounted cash flow	Weighted-average CPR (%)	3.6% - 28.0% (9.0%)
			OAS (%)	7.8% - 15.0% (8.4%)

_________

(1) See Note 5 for additional disclosures related to assumptions used in the fair value calculation for residential mortgage servicing rights.

	December 31, 2017
	Level 3 Estimated Fair Value at December 31, 2017	Valuation Technique	Unobservable Input(s)	Quantitative Range of Unobservable Inputs and (Weighted-Average)
	(Dollars in millions)
Recurring fair value measurements:
Residential mortgage servicing rights(1)	$336	Discounted cash flow	Weighted-average CPR (%)	7.9% - 28.1% (9.9%)
			OAS (%)	8.1% - 15.0% (8.6%)

_________

(1) See Note 7 to the consolidated financial statements of the Annual Report on Form 10-K for the year ended December 31, 2017 for additional disclosures related to assumptions used in the fair value calculation for residential mortgage servicing rights.

Fair Value Option, Fair Value and Unpaid Principal Balance

The following table summarizes the difference between the aggregate fair value and the aggregate unpaid principal balance for mortgage loans held for sale measured at fair value:

	March 31, 2018						December 31, 2017
	Aggregate Fair Value		Aggregate Unpaid Principal		Aggregate Fair Value Less Aggregate Unpaid Principal		Aggregate Fair Value		Aggregate Unpaid Principal		Aggregate Fair Value Less Aggregate Unpaid Principal
	(In millions)
Mortgage loans held for sale, at fair value	$	282	$	273	$	9	$	325	$	314	$	11

Interest income on mortgage loans held for sale is recognized based on contractual rates and is reflected in interest income on loans held for sale in the consolidated statements of income. The following table details net gains and losses resulting from changes in fair value of these loans, which were recorded in mortgage income in the consolidated statements of income during the three months ended March 31, 2018 and 2017. These changes in fair value are mostly offset by economic hedging activities. An immaterial portion of these amounts was attributable to changes in instrument-specific credit risk.

	Net gains (losses) resulting from changes in fair value
	Three Months Ended March 31
	2018			2017
	(In millions)
Mortgage loans held for sale, at fair value	$	(3	)	$	4

Schedule Of Carrying Amounts And Estimated Fair Values Of Financial Instruments

The carrying amounts and estimated fair values, as well as the level within the fair value hierarchy, of the Company’s financial instruments as of March 31, 2018 are as follows:

	March 31, 2018
	Carrying Amount		Estimated Fair Value(1)		Level 1		Level 2		Level 3
	(In millions)
Financial assets:
Cash and cash equivalents	$	3,185	$	3,185	$	3,185	$	—	$	—
Debt securities held to maturity	1,611		1,585		—		1,585		—
Debt securities available for sale	23,085		23,085		327		22,753		5
Loans held for sale	452		452		—		439		13
Loans (excluding leases), net of unearned income and allowance for loan losses(2)(3)	77,917		76,683		—		—		76,683
Other earning assets(4)	1,190		1,190		525		665		—
Derivative assets	248		248		2		233		13
Financial liabilities:
Derivative liabilities	396		396		2		394		—
Deposits	96,990		97,015		—		97,015		—
Long-term borrowings	7,949		8,239		—		7,814		425
Loan commitments and letters of credit	77		413		—		—		413

_________

(1) Estimated fair values are consistent with an exit price concept. The assumptions used to estimate the fair values are intended to approximate those that a market participant would use in a hypothetical orderly transaction. In estimating fair value, the Company maintains a corporate governance program to make adjustments for estimated changes in interest rates, market liquidity and credit spreads in the periods they are deemed to have occurred.

(2) The estimated fair value of portfolio loans assumes sale of the loans to a third-party financial investor. Accordingly, the value to the Company if the loans were held to maturity is not reflected in the fair value estimate. In the current whole loan market, financial investors are generally requiring a higher rate of return than the return inherent in loans if held to maturity. The fair value discount on the loan portfolio's net carrying amount at March 31, 2018 was $1.2 billion or 1.6 percent.

(3) Excluded from this table is the capital lease carrying amount of $1.1 billion at March 31, 2018.

(4) Excluded from this table is the operating lease carrying amount of $450 million at March 31, 2018.

The carrying amounts and estimated fair values, as well as the level within the fair value hierarchy, of the Company's financial instruments as of December 31, 2017 are as follows:

	December 31, 2017
	Carrying Amount		Estimated Fair Value(1)		Level 1		Level 2		Level 3
	(In millions)
Financial assets:
Cash and cash equivalents	$	3,981	$	3,981	$	3,981	$	—	$	—
Debt securities held to maturity	1,658		1,667		—		1,667		—
Debt securities available for sale	23,403		23,403		331		23,066		6
Loans held for sale	348		348		—		328		20
Loans (excluding leases), net of unearned income and allowance for loan losses(2)(3)	77,942		76,871		—		—		76,871
Other earning assets(4)	1,402		1,402		414		988		—
Derivative assets	394		394		2		387		5
Financial liabilities:
Derivative liabilities	641		641		2		639		—
Deposits	96,889		96,927		—		96,927		—
Long-term borrowings	8,132		8,517		—		7,757		760
Loan commitments and letters of credit	79		540		—		—		540

_________

(1) Estimated fair values are consistent with an exit price concept. The assumptions used to estimate the fair values are intended to approximate those that a market participant would use in a hypothetical orderly transaction. In estimating fair value, the Company maintains a corporate governance program to make adjustments for estimated changes in interest rates, market liquidity and credit spreads in the periods they are deemed to have occurred.

(2) The estimated fair value of portfolio loans assumes sale of the loans to a third-party financial investor. Accordingly, the value to the Company if the loans were held to maturity is not reflected in the fair value estimate. In the current whole loan market, financial investors are generally requiring a higher rate of return than the return inherent in loans if held to maturity. The fair value discount on the loan portfolio's net carrying amount at December 31, 2017 was $1.1 billion or 1.4 percent.

(3) Excluded from this table is the capital lease carrying amount of $1.1 billion at December 31, 2017.

(4) Excluded from this table is the operating lease carrying amount of $489 million at December 31, 2017.

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Business Segment Information (Tables)

3 Months Ended

Mar. 31, 2018

Segment Reporting [Abstract]

Schedule Of Financial Information By Reportable Segment

The following tables present financial information for each reportable segment for the period indicated.

	Three Months Ended March 31, 2018
	Corporate Bank		Consumer Bank		Wealth Management		Other			Continuing Operations			Discontinued Operations		Consolidated
	(In millions)
Net interest income and other financing income (loss)	$	340	$	542	$	49	$	(22	)	$	909		$	—	$	909
Provision (credit) for loan losses	55		76		4		(145		)	(10		)	—		(10		)
Non-interest income	144		276		77		10			507			34		541
Non-interest expense	233		523		91		37			884			34		918
Income (loss) before income taxes	196		219		31		96			542			—		542
Income tax expense (benefit)	49		55		8		16			128			—		128
Net income (loss)	$	147	$	164	$	23	$	80		$	414		$	—	$	414
Average assets	$	51,037	$	35,011	$	2,359	$	34,917		$	123,324		$	170	$	123,494

	Three Months Ended March 31, 2017
	Corporate Bank		Consumer Bank		Wealth Management		Other			Continuing Operations		Discontinued Operations		Consolidated
	(In millions)
Net interest income and other financing income (loss)	$	341	$	518	$	46	$	(46	)	$	859	$	—	$	859
Provision (credit) for loan losses	67		74		5		(76		)	70		—		70
Non-interest income	123		275		74		2			474		36		510
Non-interest expense	214		513		84		32			843		23		866
Income (loss) before income taxes	183		206		31		—			420		13		433
Income tax expense (benefit)	69		78		12		(32		)	127		5		132
Net income (loss)	$	114	$	128	$	19	$	32		$	293	$	8	$	301
Average assets	$	52,340	$	35,047	$	2,518	$	34,747		$	124,652	$	158	$	124,810

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Commitments, Contingencies and Guarantees (Tables)

3 Months Ended

Mar. 31, 2018

Commitments and Contingencies Disclosure [Abstract]

Credit Risk Of Financial Instruments By Contractual Amounts

Credit risk associated with these instruments is represented by the contractual amounts indicated in the following table:

	March 31, 2018		December 31, 2017
	(In millions)
Unused commitments to extend credit	$	46,328	$	45,705
Standby letters of credit	1,436		1,348
Commercial letters of credit	76		76
Liabilities associated with standby letters of credit	28		26
Assets associated with standby letters of credit	29		28
Reserve for unfunded credit commitments	49		53

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Revenue Recognition (Tables)

3 Months Ended

Mar. 31, 2018

Revenue Recognition [Abstract]

Disaggregation of Revenue

The following tables present total non-interest income disaggregated by major product category for each reportable segment for the period indicated.

	Three Months Ended March 31, 2018
	Corporate Bank		Consumer Bank		Wealth Management		Other Segment Revenue		Other(1)			Continuing Operations			Discontinued Operations
	(In millions)
Service charges on deposit accounts	$	37	$	131	$	1	$	1	$	1		$	171		$	—
Card and ATM fees	12		96		—		—		(4		)	104			—
Investment management and trust fee income	—		—		58		—		—			58			—
Capital markets fee income and other	18		—		—		—		32			50			—
Mortgage income	—		—		—		—		38			38			—
Bank-owned life insurance	—		—		—		—		17			17			—
Commercial credit fee income	—		—		—		—		17			17			—
Investment services fee income	—		—		17		—		—			17			—
Market value adjustments on employee benefit assets	—		—		—		—		(1		)	(1		)	—
Insurance commissions and fees	—		—		—		—		—			—			34
Other miscellaneous income	5		9		1		—		21			36			—
	$	72	$	236	$	77	$	1	$	121		$	507		$	34

	Three Months Ended March 31, 2017 (2)
	Corporate Bank		Consumer Bank		Wealth Management		Other Segment Revenue		Other(1)			Continuing Operations		Discontinued Operations
	(In millions)
Service charges on deposit accounts	$	36	$	127	$	1	$	2	$	2		$	168	$	—
Card and ATM fees	12		93		—		—		(1		)	104		—
Investment management and trust fee income	—		—		56		—		—			56		—
Capital markets fee income and other	9		—		—		—		23			32		—
Mortgage income	—		—		—		—		41			41		—
Bank-owned life insurance	—		—		—		—		19			19		—
Commercial credit fee income	—		—		—		—		18			18		—
Investment services fee income	—		—		16		—		—			16		—
Market value adjustments on employee benefit assets	—		—		—		—		5			5		—
Insurance commissions and fees	—		—		—		—		—			—		36
Other miscellaneous income	3		11		1		—		—			15		—
	$	60	$	231	$	74	$	2	$	107		$	474	$	36

________

(1) This revenue is not impacted by the new accounting guidance and continues to be recognized when earned in accordance with the Company's existing revenue recognition policy.

(2) Prior period amounts have not been adjusted under the modified retrospective method.

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Basis of Presentation (Narrative) (Details) $ in Millions	3 Months Ended
	Mar. 31, 2018 USD ($)
Basis of Presentation [Abstract]
Cumulative Effect on Retained Earnings, Net of Tax	$ 2

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Discontinued Operations (Schedule of Discontinued Operations Income Statement) (Details) - USD ($) $ / shares in Units, $ in Millions			3 Months Ended
		Apr. 04, 2018	Mar. 31, 2018	Mar. 31, 2017
Non-interest income:
Total non-interest income			$ 507	$ 474
Non-interest expense:
Salaries and employee benefits			495	461
Net occupancy expense			83	83
Furniture and equipment expense			81	79
Other			225	220
Total non-interest expense			884	843
Income (loss) from discontinued operations before income taxes			0	13
Income tax expense (benefit)			0	5
Income (loss) from discontinued operations, net of tax			$ 0	$ 8
Earnings (loss) per common share from discontinued operations:
Basic (in dollars per share)	[1]		$ 0.00	$ 0.01
Diluted (in dollars per share)	[1]		$ 0.00	$ 0.01
Regions Insurance Group, Inc - Discontinued Operations [Member]
Non-interest income:
Insurance Commissions and Fees			$ 34	$ 36
Total non-interest income			34	36
Non-interest expense:
Salaries and employee benefits			24	24
Net occupancy expense			1	2
Furniture and equipment expense			1	1
Other			7	7
Total non-interest expense			33	34
Income (loss) from discontinued operations before income taxes			1	2
Income tax expense (benefit)			0	1
Income (loss) from discontinued operations, net of tax			1	1
Discontinued Operations [Member]
Non-interest expense:
Income (loss) from discontinued operations before income taxes			0	13
Income tax expense (benefit)			0	5
Income (loss) from discontinued operations, net of tax			$ 0	$ 8
Earnings (loss) per common share from discontinued operations:
Basic (in dollars per share)			$ 0.00	$ 0.01
Diluted (in dollars per share)			$ 0.00	$ 0.01
Subsequent Event [Member] | Regions Insurance Group Inc. [Member]
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Discontinued Operation, Gain (Loss) on Disposal of Discontinued Operation, Net of Tax		$ 200
Earnings (loss) per common share from discontinued operations:
Common Equity Tier One Capital		$ 300

[1] Certain per share amounts may not appear to reconcile due to rounding.

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Securities (Schedule Of Amortized Cost, Gross Unrealized Gains And Losses, And Estimated Fair Value Of Securities Available For Sale And Securities Held To Maturity) (Details) - USD ($) $ in Millions		Mar. 31, 2018	Dec. 31, 2017
Schedule of Held-to-maturity Securities [Line Items]
Debt Securities held to maturity, amortized cost		$ 1,652	$ 1,702
Held To Maturity Debt Securities Gross Unrealized Gains	[1]	0	0
Held To Maturity Debt Securities Gross Unrealized Losses	[1]	(41)	(44)
Debt Securities held to maturity		1,611	1,658
Held-to-maturity Debt Securities, Accumulated Unrecognized Holding Gain		1	17
Held-to-maturity Debt Securities, Accumulated Unrecognized Holding Loss		(27)	(8)
Debt Securities held to maturity, estimated fair value		1,585	1,667
Schedule of Available-for-sale Securities [Line Items]
Available-for-sale Debt Securities, Amortized Cost Basis		23,701	23,605
Available-for-sale Debt Securities, Accumulated Gross Unrealized Gain, before Tax		35	82
Available-for-sale Debt Securities, Accumulated Gross Unrealized Loss, before Tax		(651)	(284)
Available-for-sale debt securities, net carrying value		23,085	23,403
Available-for-sale Securities, Debt Securities		23,085	23,403
US Treasury Securities [Member]
Schedule of Available-for-sale Securities [Line Items]
Available-for-sale Debt Securities, Amortized Cost Basis		333	333
Available-for-sale Debt Securities, Accumulated Gross Unrealized Gain, before Tax		0	0
Available-for-sale Debt Securities, Accumulated Gross Unrealized Loss, before Tax		(6)	(2)
Available-for-sale debt securities, net carrying value		327	331
Available-for-sale Securities, Debt Securities		327	331
Federal Agency Securities [Member]
Schedule of Available-for-sale Securities [Line Items]
Available-for-sale Debt Securities, Amortized Cost Basis		42	28
Available-for-sale Debt Securities, Accumulated Gross Unrealized Gain, before Tax		0	0
Available-for-sale Debt Securities, Accumulated Gross Unrealized Loss, before Tax		0	0
Available-for-sale debt securities, net carrying value		42	28
Available-for-sale Securities, Debt Securities		42	28
Residential Agency [Member]
Schedule of Held-to-maturity Securities [Line Items]
Debt Securities held to maturity, amortized cost		1,010
Debt Securities held to maturity, estimated fair value		960
Schedule of Available-for-sale Securities [Line Items]
Available-for-sale Debt Securities, Amortized Cost Basis		17,663	17,622
Available-for-sale Debt Securities, Accumulated Gross Unrealized Gain, before Tax		23	53
Available-for-sale Debt Securities, Accumulated Gross Unrealized Loss, before Tax		(534)	(244)
Available-for-sale debt securities, net carrying value		17,152	17,431
Available-for-sale Securities, Debt Securities		17,152	17,431
Residential Non-Agency [Member]
Schedule of Available-for-sale Securities [Line Items]
Available-for-sale Debt Securities, Amortized Cost Basis		2	3
Available-for-sale Debt Securities, Accumulated Gross Unrealized Gain, before Tax		0	0
Available-for-sale Debt Securities, Accumulated Gross Unrealized Loss, before Tax		0	0
Available-for-sale debt securities, net carrying value		2	3
Available-for-sale Securities, Debt Securities		2	3
Commercial Agency [Member]
Schedule of Held-to-maturity Securities [Line Items]
Debt Securities held to maturity, amortized cost		642
Debt Securities held to maturity, estimated fair value		625
Schedule of Available-for-sale Securities [Line Items]
Available-for-sale Debt Securities, Amortized Cost Basis		3,742	3,739
Available-for-sale Debt Securities, Accumulated Gross Unrealized Gain, before Tax		1	5
Available-for-sale Debt Securities, Accumulated Gross Unrealized Loss, before Tax		(82)	(30)
Available-for-sale debt securities, net carrying value		3,661	3,714
Available-for-sale Securities, Debt Securities		3,661	3,714
Commercial Non-Agency [Member]
Schedule of Available-for-sale Securities [Line Items]
Available-for-sale Debt Securities, Amortized Cost Basis		774	787
Available-for-sale Debt Securities, Accumulated Gross Unrealized Gain, before Tax		3	4
Available-for-sale Debt Securities, Accumulated Gross Unrealized Loss, before Tax		(11)	(3)
Available-for-sale debt securities, net carrying value		766	788
Available-for-sale Securities, Debt Securities		766	788
Corporate and other debt securities [Member]
Schedule of Available-for-sale Securities [Line Items]
Available-for-sale Debt Securities, Amortized Cost Basis		1,145	1,093
Available-for-sale Debt Securities, Accumulated Gross Unrealized Gain, before Tax		8	20
Available-for-sale Debt Securities, Accumulated Gross Unrealized Loss, before Tax		(18)	(5)
Available-for-sale debt securities, net carrying value		1,135	1,108
Available-for-sale Securities, Debt Securities		1,135	1,108
Residential Agency [Member]
Schedule of Held-to-maturity Securities [Line Items]
Debt Securities held to maturity, amortized cost		1,010	1,051
Held To Maturity Debt Securities Gross Unrealized Gains	[1]	0	0
Held To Maturity Debt Securities Gross Unrealized Losses	[1]	(38)	(40)
Debt Securities held to maturity		972	1,011
Held-to-maturity Debt Securities, Accumulated Unrecognized Holding Gain		1	12
Held-to-maturity Debt Securities, Accumulated Unrecognized Holding Loss		(13)	(4)
Debt Securities held to maturity, estimated fair value		960	1,019
Commercial Agency [Member]
Schedule of Held-to-maturity Securities [Line Items]
Debt Securities held to maturity, amortized cost		642	651
Held To Maturity Debt Securities Gross Unrealized Gains	[1]	0	0
Held To Maturity Debt Securities Gross Unrealized Losses	[1]	(3)	(4)
Debt Securities held to maturity		639	647
Held-to-maturity Debt Securities, Accumulated Unrecognized Holding Gain		0	5
Held-to-maturity Debt Securities, Accumulated Unrecognized Holding Loss		(14)	(4)
Debt Securities held to maturity, estimated fair value		$ 625	$ 648

[1] The gross unrealized losses recognized in OCI on securities held to maturity resulted from a transfer of securities available for sale to held to maturity in the second quarter of 2013.

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Securities (Schedule Of Cost And Estimated Fair Value Of Securities Available For Sale And Securities Held To Maturity By Contractual Maturity) (Details) - USD ($) $ in Millions	Mar. 31, 2018	Dec. 31, 2017
Debt Securities held to maturity, amortized cost	$ 1,652	$ 1,702
Debt Securities held to maturity, estimated fair value	1,585	1,667
Available-for-sale Securities, Debt Maturities, Next Twelve Months, Amortized Cost Basis	48
Available-for-sale Securities, Debt Maturities, Next Twelve Months, Fair Value	48
Available-for-sale Securities, Debt Maturities, Year Two Through Five, Amortized Cost Basis	964
Available-for-sale Securities, Debt Maturities, Year Two Through Five, Fair Value	952
Available-for-sale Securities, Debt Maturities, Year Six Through Ten, Amortized Cost Basis	418
Available-for-sale Securities, Debt Maturities, Year Six Through Ten, Fair Value	414
Available-for-sale Securities, Debt Maturities, after Ten Years, Amortized Cost Basis	90
Available-for-sale Securities, Debt Maturities, after Ten Years, Fair Value	90
Available-for-sale Debt Securities, Amortized Cost Basis	23,701	23,605
Available-for-sale Securities, Debt Securities	23,085	23,403
Residential Agency [Member]
Debt Securities held to maturity, amortized cost	1,010
Debt Securities held to maturity, estimated fair value	960
Available-for-sale Debt Securities, Amortized Cost Basis	17,663	17,622
Available-for-sale Securities, Debt Securities	17,152	17,431
Residential Non-Agency [Member]
Available-for-sale Debt Securities, Amortized Cost Basis	2	3
Available-for-sale Securities, Debt Securities	2	3
Commercial Agency [Member]
Debt Securities held to maturity, amortized cost	642
Debt Securities held to maturity, estimated fair value	625
Available-for-sale Debt Securities, Amortized Cost Basis	3,742	3,739
Available-for-sale Securities, Debt Securities	3,661	3,714
Commercial Non-Agency [Member]
Available-for-sale Debt Securities, Amortized Cost Basis	774	787
Available-for-sale Securities, Debt Securities	$ 766	$ 788

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Securities (Schedule Of Gross Unrealized Losses And Estimated Fair Value Of Securities Available For Sale and Held to Maturity) (Details) - USD ($) $ in Millions	Mar. 31, 2018	Dec. 31, 2017
Unrealized Loss And Fair Value On Securities [Line Items]
Held-to-maturity Securities, Continuous Unrealized Loss Position, Less than Twelve Months, Estimated Fair Value	$ 485	$ 0
Held-to-maturity Securities, Continuous Unrealized Loss Position, Less than 12 Months, Accumulated Loss	(8)	0
Held-to-maturity Securities, Continuous Unrealized Loss Position, Twelve Months or Longer, Estimated Fair Value	1,100	1,169
Held-to-maturity Securities, Continuous Unrealized Loss Position, 12 Months or Longer, Accumulated Loss	(60)	(39)
Held-to-maturity Securities, Continuous Unrealized Loss Position, Estimated Fair Value	1,585	1,169
Held-to-maturity Securities, Continuous Unrealized Loss Position, Accumulated Loss	(68)	(39)
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than Twelve Months, Estimated Fair Value	11,526	7,743
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than 12 Months, Accumulated Loss	(245)	(55)
Available-for-sale Securities, Continuous Unrealized Loss Position, Twelve Months or Longer, Estimated Fair Value	8,825	9,349
Available-for-sale Securities, Continuous Unrealized Loss Position, 12 Months or Longer, Accumulated Loss	(406)	(229)
Available-for-sale Securities, Continuous Unrealized Loss Position, Estimated Fair Value	20,351	17,092
Available-for-sale Securities, Continuous Unrealized Loss Position, Accumulated Loss	(651)	(284)
US Treasury Securities [Member]
Unrealized Loss And Fair Value On Securities [Line Items]
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than Twelve Months, Estimated Fair Value	223	221
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than 12 Months, Accumulated Loss	(3)	(1)
Available-for-sale Securities, Continuous Unrealized Loss Position, Twelve Months or Longer, Estimated Fair Value	87	84
Available-for-sale Securities, Continuous Unrealized Loss Position, 12 Months or Longer, Accumulated Loss	(3)	(1)
Available-for-sale Securities, Continuous Unrealized Loss Position, Estimated Fair Value	310	305
Available-for-sale Securities, Continuous Unrealized Loss Position, Accumulated Loss	(6)	(2)
Residential Agency [Member]
Unrealized Loss And Fair Value On Securities [Line Items]
Held-to-maturity Securities, Continuous Unrealized Loss Position, Less than Twelve Months, Estimated Fair Value	0	0
Held-to-maturity Securities, Continuous Unrealized Loss Position, Less than 12 Months, Accumulated Loss	0	0
Held-to-maturity Securities, Continuous Unrealized Loss Position, Twelve Months or Longer, Estimated Fair Value	960	1,019
Held-to-maturity Securities, Continuous Unrealized Loss Position, 12 Months or Longer, Accumulated Loss	(51)	(32)
Held-to-maturity Securities, Continuous Unrealized Loss Position, Estimated Fair Value	960	1,019
Held-to-maturity Securities, Continuous Unrealized Loss Position, Accumulated Loss	(51)	(32)
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than Twelve Months, Estimated Fair Value	7,524	5,157
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than 12 Months, Accumulated Loss	(169)	(40)
Available-for-sale Securities, Continuous Unrealized Loss Position, Twelve Months or Longer, Estimated Fair Value	7,739	8,195
Available-for-sale Securities, Continuous Unrealized Loss Position, 12 Months or Longer, Accumulated Loss	(365)	(204)
Available-for-sale Securities, Continuous Unrealized Loss Position, Estimated Fair Value	15,263	13,352
Available-for-sale Securities, Continuous Unrealized Loss Position, Accumulated Loss	(534)	(244)
Commercial Agency [Member]
Unrealized Loss And Fair Value On Securities [Line Items]
Held-to-maturity Securities, Continuous Unrealized Loss Position, Less than Twelve Months, Estimated Fair Value	485	0
Held-to-maturity Securities, Continuous Unrealized Loss Position, Less than 12 Months, Accumulated Loss	(8)	0
Held-to-maturity Securities, Continuous Unrealized Loss Position, Twelve Months or Longer, Estimated Fair Value	140	150
Held-to-maturity Securities, Continuous Unrealized Loss Position, 12 Months or Longer, Accumulated Loss	(9)	(7)
Held-to-maturity Securities, Continuous Unrealized Loss Position, Estimated Fair Value	625	150
Held-to-maturity Securities, Continuous Unrealized Loss Position, Accumulated Loss	(17)	(7)
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than Twelve Months, Estimated Fair Value	2,600	1,666
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than 12 Months, Accumulated Loss	(50)	(10)
Available-for-sale Securities, Continuous Unrealized Loss Position, Twelve Months or Longer, Estimated Fair Value	856	904
Available-for-sale Securities, Continuous Unrealized Loss Position, 12 Months or Longer, Accumulated Loss	(32)	(20)
Available-for-sale Securities, Continuous Unrealized Loss Position, Estimated Fair Value	3,456	2,570
Available-for-sale Securities, Continuous Unrealized Loss Position, Accumulated Loss	(82)	(30)
Commercial Non-Agency [Member]
Unrealized Loss And Fair Value On Securities [Line Items]
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than Twelve Months, Estimated Fair Value	536	393
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than 12 Months, Accumulated Loss	(9)	(2)
Available-for-sale Securities, Continuous Unrealized Loss Position, Twelve Months or Longer, Estimated Fair Value	59	61
Available-for-sale Securities, Continuous Unrealized Loss Position, 12 Months or Longer, Accumulated Loss	(2)	(1)
Available-for-sale Securities, Continuous Unrealized Loss Position, Estimated Fair Value	595	454
Available-for-sale Securities, Continuous Unrealized Loss Position, Accumulated Loss	(11)	(3)
All Other Securities [Member]
Unrealized Loss And Fair Value On Securities [Line Items]
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than Twelve Months, Estimated Fair Value	643	306
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than 12 Months, Accumulated Loss	(14)	(2)
Available-for-sale Securities, Continuous Unrealized Loss Position, Twelve Months or Longer, Estimated Fair Value	84	105
Available-for-sale Securities, Continuous Unrealized Loss Position, 12 Months or Longer, Accumulated Loss	(4)	(3)
Available-for-sale Securities, Continuous Unrealized Loss Position, Estimated Fair Value	727	411
Available-for-sale Securities, Continuous Unrealized Loss Position, Accumulated Loss	$ (18)	$ (5)

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Securities (Schedule Of Gross Realized Gains And Gross Realized Losses On Available For Sale Securities) (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2018	Mar. 31, 2017
Investments, Debt and Equity Securities [Abstract]
Gross realized gains	$ 0	$ 1
Gross realized losses	0	(1)
Debt Securities available for sale gains (losses), net	$ 0	$ 0

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Securities (Equity Investments) (Details) $ in Millions	3 Months Ended
	Mar. 31, 2018 USD ($)
Equity Investments without a Readily Determinable Fair Value [Roll Forward]
Carrying value, December 31, 2017	$ 31
Net additions	0
Downward adjustments for price changes and impairment	0
Upward adjustments for price changes	7	[1]
Carrying value, March 31, 2018	$ 38

[1] Upward adjustments for the three months ended March 31, 2018 related to an observable transaction by the same issuer in an arm's length transaction for a similar ownership interest.

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Securities (Narrative) (Details) $ in Millions	3 Months Ended
	Mar. 31, 2018 USD ($) security	Dec. 31, 2017 USD ($) security
Schedule of Available-for-sale Securities [Line Items]
Securities pledged as collateral	$ 8,300	$ 8,100
Number of individual positions in unrealized loss position | security	1,364	1,059
Marketable Equity Securities carried at fair value	$ 525	$ 414
Cumulative Downward Adjustments for Equity Investments without a Determinable Fair Value	4
Cumulative Upward Adjustments for Equity Investments without a Determinable Fair Value	7
US Treasury Securities [Member]
Schedule of Available-for-sale Securities [Line Items]
Securities pledged as collateral	$ 49	$ 50

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Loans and the Allowance for Credit Losses (Schedule Of Loan Portfolio, Net Of Unearned Income) (Details) - USD ($) $ in Millions	Mar. 31, 2018	Dec. 31, 2017	Mar. 31, 2017
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans, net of unearned income	$ 79,822	$ 79,947	$ 79,869
Commercial And Industrial [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans, net of unearned income	36,787	36,115
Commercial Real Estate Mortgage - Owner-Occupied [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans, net of unearned income	6,044	6,193
Commercial Real Estate Construction - Owner-Occupied [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans, net of unearned income	306	332
Commercial Investor Real Estate Mortgage [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans, net of unearned income	3,742	4,062
Commercial Investor Real Estate Construction [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans, net of unearned income	1,845	1,772
Residential First Mortgage [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans, net of unearned income	13,892	14,061
Home Equity [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans, net of unearned income	9,916	10,164
Indirect-vehicles [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans, net of unearned income	3,310	3,326
Indirect-other consumer [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans, net of unearned income	1,611	1,467
Consumer Credit Card Financing Receivable [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans, net of unearned income	1,237	1,290
Other consumer
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans, net of unearned income	1,132	1,165
Commercial Portfolio Segment [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans, net of unearned income	43,137	42,640	42,242
Total Investor Real Estate [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans, net of unearned income	5,587	5,834	6,482
Consumer Portfolio Segment [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans, net of unearned income	$ 31,098	$ 31,473	$ 31,145

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Loans and the Allowance for Credit Losses (Analysis of the Allowance for Credit Losses by Portfolio Segment) (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2018	Mar. 31, 2017	Dec. 31, 2017
Allowance for Loan and Lease Losses [Roll Forward]
Allowance for loan losses, beginning of period	$ 934	$ 1,091
Provision (credit) for loan and lease losses	(10)	70
Loan losses:
Charge-offs	(112)	(124)
Recoveries	28	24
Net loan losses	(84)	(100)
Total allowance for loan losses	840	1,061
Reserve For Unfunded Credit Commitments [Roll Forward]
Reserve For Unfunded Credit Commitments, beginning of period	53	69
Provision (credit) for unfunded credit losses	(4)	1
Reserve For Unfunded Credit Commitments, end of period	49	70
Allowance for Credit Losses, end of period	889	1,131
Portion of ending allowance for loan losses:
Allowance Individually Evaluated for Impairment	189	301
Allowance Collectively Evaluated for Impairment	651	760
Total allowance for loan losses	840	1,061
Portion of loan portfolio ending balance:
Loans Individually Evaluated for Impairment	1,272	1,989
Loans Collectively Evaluated for Impairment	78,550	77,880
Loans, net of unearned income	79,822	79,869	$ 79,947
Commercial Portfolio Segment [Member]
Allowance for Loan and Lease Losses [Roll Forward]
Allowance for loan losses, beginning of period	591	753
Provision (credit) for loan and lease losses	(24)	26
Loan losses:
Charge-offs	(30)	(58)
Recoveries	10	6
Net loan losses	(20)	(52)
Total allowance for loan losses	547	727
Reserve For Unfunded Credit Commitments [Roll Forward]
Reserve For Unfunded Credit Commitments, beginning of period	49	64
Provision (credit) for unfunded credit losses	(4)	2
Reserve For Unfunded Credit Commitments, end of period	45	66
Allowance for Credit Losses, end of period	592	793
Portion of ending allowance for loan losses:
Allowance Individually Evaluated for Impairment	150	228
Allowance Collectively Evaluated for Impairment	397	499
Total allowance for loan losses	547	727
Portion of loan portfolio ending balance:
Loans Individually Evaluated for Impairment	700	1,103
Loans Collectively Evaluated for Impairment	42,437	41,139
Loans, net of unearned income	43,137	42,242	42,640
Total Investor Real Estate [Member]
Allowance for Loan and Lease Losses [Roll Forward]
Allowance for loan losses, beginning of period	64	85
Provision (credit) for loan and lease losses	(4)	1
Loan losses:
Charge-offs	(8)	(1)
Recoveries	2	2
Net loan losses	(6)	1
Total allowance for loan losses	54	87
Reserve For Unfunded Credit Commitments [Roll Forward]
Reserve For Unfunded Credit Commitments, beginning of period	4	5
Provision (credit) for unfunded credit losses	0	(1)
Reserve For Unfunded Credit Commitments, end of period	4	4
Allowance for Credit Losses, end of period	58	91
Portion of ending allowance for loan losses:
Allowance Individually Evaluated for Impairment	10	17
Allowance Collectively Evaluated for Impairment	44	70
Total allowance for loan losses	54	87
Portion of loan portfolio ending balance:
Loans Individually Evaluated for Impairment	96	126
Loans Collectively Evaluated for Impairment	5,491	6,356
Loans, net of unearned income	5,587	6,482	5,834
Consumer Portfolio Segment [Member]
Allowance for Loan and Lease Losses [Roll Forward]
Allowance for loan losses, beginning of period	279	253
Provision (credit) for loan and lease losses	18	43
Loan losses:
Charge-offs	(74)	(65)
Recoveries	16	16
Net loan losses	(58)	(49)
Total allowance for loan losses	239	247
Reserve For Unfunded Credit Commitments [Roll Forward]
Reserve For Unfunded Credit Commitments, beginning of period	0	0
Provision (credit) for unfunded credit losses	0	0
Reserve For Unfunded Credit Commitments, end of period	0	0
Allowance for Credit Losses, end of period	239	247
Portion of ending allowance for loan losses:
Allowance Individually Evaluated for Impairment	29	56
Allowance Collectively Evaluated for Impairment	210	191
Total allowance for loan losses	239	247
Portion of loan portfolio ending balance:
Loans Individually Evaluated for Impairment	476	760
Loans Collectively Evaluated for Impairment	30,622	30,385
Loans, net of unearned income	$ 31,098	$ 31,145	$ 31,473

XML

Loans and the Allowance for Credit Losses (Credit Quality Indicators) (Details) - USD ($) $ in Millions	Mar. 31, 2018	Dec. 31, 2017	Mar. 31, 2017
Financing Receivable, Recorded Investment [Line Items]
Loans, net of unearned income	$ 79,822	$ 79,947	$ 79,869
Commercial And Industrial [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans, net of unearned income	36,787	36,115
Commercial Real Estate Mortgage - Owner-Occupied [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans, net of unearned income	6,044	6,193
Commercial Real Estate Construction - Owner-Occupied [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans, net of unearned income	306	332
Commercial Investor Real Estate Mortgage [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans, net of unearned income	3,742	4,062
Commercial Investor Real Estate Construction [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans, net of unearned income	1,845	1,772
Residential First Mortgage [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans, net of unearned income	13,892	14,061
Home Equity [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans, net of unearned income	9,916	10,164
Indirect-vehicles [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans, net of unearned income	3,310	3,326
Indirect-other consumer [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans, net of unearned income	1,611	1,467
Consumer Credit Card Financing Receivable [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans, net of unearned income	1,237	1,290
Other consumer
Financing Receivable, Recorded Investment [Line Items]
Loans, net of unearned income	1,132	1,165
Pass [Member] | Commercial And Industrial [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans, net of unearned income	35,216	34,420
Pass [Member] | Commercial Real Estate Mortgage - Owner-Occupied [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans, net of unearned income	5,558	5,674
Pass [Member] | Commercial Real Estate Construction - Owner-Occupied [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans, net of unearned income	288	313
Pass [Member] | Commercial Investor Real Estate Mortgage [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans, net of unearned income	3,646	3,905
Pass [Member] | Commercial Investor Real Estate Construction [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans, net of unearned income	1,793	1,706
Special Mention [Member] | Commercial And Industrial [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans, net of unearned income	609	686
Special Mention [Member] | Commercial Real Estate Mortgage - Owner-Occupied [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans, net of unearned income	250	236
Special Mention [Member] | Commercial Real Estate Construction - Owner-Occupied [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans, net of unearned income	3	3
Special Mention [Member] | Commercial Investor Real Estate Mortgage [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans, net of unearned income	48	63
Special Mention [Member] | Commercial Investor Real Estate Construction [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans, net of unearned income	15	19
Substandard [Member] | Commercial And Industrial [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans, net of unearned income	598	605
Substandard [Member] | Commercial Real Estate Mortgage - Owner-Occupied [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans, net of unearned income	134	165
Substandard [Member] | Commercial Real Estate Construction - Owner-Occupied [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans, net of unearned income	10	10
Substandard [Member] | Commercial Investor Real Estate Mortgage [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans, net of unearned income	34	89
Substandard [Member] | Commercial Investor Real Estate Construction [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans, net of unearned income	37	46
Accrual [Member] | Residential First Mortgage [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans, net of unearned income	13,845	14,014
Accrual [Member] | Home Equity [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans, net of unearned income	9,847	10,095
Accrual [Member] | Indirect-vehicles [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans, net of unearned income	3,310	3,326
Accrual [Member] | Indirect-other consumer [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans, net of unearned income	1,611	1,467
Accrual [Member] | Consumer Credit Card Financing Receivable [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans, net of unearned income	1,237	1,290
Accrual [Member] | Other consumer
Financing Receivable, Recorded Investment [Line Items]
Loans, net of unearned income	1,132	1,165
Non Accrual [Member] | Commercial And Industrial [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans, net of unearned income	364	404
Non Accrual [Member] | Commercial Real Estate Mortgage - Owner-Occupied [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans, net of unearned income	102	118
Non Accrual [Member] | Commercial Real Estate Construction - Owner-Occupied [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans, net of unearned income	5	6
Non Accrual [Member] | Commercial Investor Real Estate Mortgage [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans, net of unearned income	14	5
Non Accrual [Member] | Commercial Investor Real Estate Construction [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans, net of unearned income	0	1
Non Accrual [Member] | Residential First Mortgage [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans, net of unearned income	47	47
Non Accrual [Member] | Home Equity [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans, net of unearned income	69	69
Non Accrual [Member] | Indirect-vehicles [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans, net of unearned income	0	0
Non Accrual [Member] | Indirect-other consumer [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans, net of unearned income	0	0
Non Accrual [Member] | Consumer Credit Card Financing Receivable [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans, net of unearned income	0	0
Non Accrual [Member] | Other consumer
Financing Receivable, Recorded Investment [Line Items]
Loans, net of unearned income	0	0
Commercial Portfolio Segment [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans, net of unearned income	43,137	42,640	42,242
Commercial Portfolio Segment [Member] | Pass [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans, net of unearned income	41,062	40,407
Commercial Portfolio Segment [Member] | Special Mention [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans, net of unearned income	862	925
Commercial Portfolio Segment [Member] | Substandard [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans, net of unearned income	742	780
Commercial Portfolio Segment [Member] | Non Accrual [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans, net of unearned income	471	528
Total Investor Real Estate [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans, net of unearned income	5,587	5,834	6,482
Total Investor Real Estate [Member] | Pass [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans, net of unearned income	5,439	5,611
Total Investor Real Estate [Member] | Special Mention [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans, net of unearned income	63	82
Total Investor Real Estate [Member] | Substandard [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans, net of unearned income	71	135
Total Investor Real Estate [Member] | Non Accrual [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans, net of unearned income	14	6
Consumer Portfolio Segment [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans, net of unearned income	31,098	31,473	$ 31,145
Consumer Portfolio Segment [Member] | Accrual [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans, net of unearned income	30,982	31,357
Consumer Portfolio Segment [Member] | Non Accrual [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans, net of unearned income	$ 116	$ 116

XML

Loans and the Allowance for Credit Losses (Schedule of Aging Analysis Of Days Past Due (DPD) For Each Portfolio Class) (Details) - USD ($) $ in Millions	Mar. 31, 2018	Dec. 31, 2017	Mar. 31, 2017
Financing Receivable, Recorded Investment, Past Due [Line Items]
90 plus DPD, Accrual Loans	$ 265	$ 291
Total 30 plus DPD, Accrual Loans	691	724
Total Accrual	79,221	79,297
Nonaccrual	601	650
Loans, net of unearned income	79,822	79,947	$ 79,869
Commercial And Industrial [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
90 plus DPD, Accrual Loans	5	4
Total 30 plus DPD, Accrual Loans	75	39
Total Accrual	36,423	35,711
Nonaccrual	364	404
Loans, net of unearned income	36,787	36,115
Commercial Real Estate Mortgage - Owner-Occupied [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
90 plus DPD, Accrual Loans	1	1
Total 30 plus DPD, Accrual Loans	29	27
Total Accrual	5,942	6,075
Nonaccrual	102	118
Loans, net of unearned income	6,044	6,193
Commercial Real Estate Construction - Owner-Occupied [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
90 plus DPD, Accrual Loans	0	0
Total 30 plus DPD, Accrual Loans	0	0
Total Accrual	301	326
Nonaccrual	5	6
Loans, net of unearned income	306	332
Commercial Portfolio Segment [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
90 plus DPD, Accrual Loans	6	5
Total 30 plus DPD, Accrual Loans	104	66
Total Accrual	42,666	42,112
Nonaccrual	471	528
Loans, net of unearned income	43,137	42,640
Commercial Investor Real Estate Mortgage [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
90 plus DPD, Accrual Loans	0	1
Total 30 plus DPD, Accrual Loans	1	3
Total Accrual	3,728	4,057
Nonaccrual	14	5
Loans, net of unearned income	3,742	4,062
Commercial Investor Real Estate Construction [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
90 plus DPD, Accrual Loans	0	0
Total 30 plus DPD, Accrual Loans	29	0
Total Accrual	1,845	1,771
Nonaccrual	0	1
Loans, net of unearned income	1,845	1,772
Total Investor Real Estate [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
90 plus DPD, Accrual Loans	0	1
Total 30 plus DPD, Accrual Loans	30	3
Total Accrual	5,573	5,828
Nonaccrual	14	6
Loans, net of unearned income	5,587	5,834
Residential First Mortgage [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
90 plus DPD, Accrual Loans	196	216
Total 30 plus DPD, Accrual Loans	316	396
Total Accrual	13,845	14,014
Nonaccrual	47	47
Loans, net of unearned income	13,892	14,061
Home Equity [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
90 plus DPD, Accrual Loans	33	37
Total 30 plus DPD, Accrual Loans	117	117
Total Accrual	9,847	10,095
Nonaccrual	69	69
Loans, net of unearned income	9,916	10,164
Indirect-vehicles [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
90 plus DPD, Accrual Loans	8	9
Total 30 plus DPD, Accrual Loans	57	70
Total Accrual	3,310	3,326
Nonaccrual	0	0
Loans, net of unearned income	3,310	3,326
Indirect-other consumer [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
90 plus DPD, Accrual Loans	0	0
Total 30 plus DPD, Accrual Loans	13	14
Total Accrual	1,611	1,467
Nonaccrual	0	0
Loans, net of unearned income	1,611	1,467
Consumer Credit Card Financing Receivable [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
90 plus DPD, Accrual Loans	17	19
Total 30 plus DPD, Accrual Loans	34	37
Total Accrual	1,237	1,290
Nonaccrual	0	0
Loans, net of unearned income	1,237	1,290
Other consumer
Financing Receivable, Recorded Investment, Past Due [Line Items]
90 plus DPD, Accrual Loans	5	4
Total 30 plus DPD, Accrual Loans	20	21
Total Accrual	1,132	1,165
Nonaccrual	0	0
Loans, net of unearned income	1,132	1,165
Consumer Portfolio Segment [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
90 plus DPD, Accrual Loans	259	285
Total 30 plus DPD, Accrual Loans	557	655
Total Accrual	30,982	31,357
Nonaccrual	116	116
Loans, net of unearned income	31,098	31,473
Financing Receivables, 60 to 89 Days Past Due [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total 30 plus DPD, Accrual Loans	150	157
Financing Receivables, 60 to 89 Days Past Due [Member] | Commercial And Industrial [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total 30 plus DPD, Accrual Loans	28	7
Financing Receivables, 60 to 89 Days Past Due [Member] | Commercial Real Estate Mortgage - Owner-Occupied [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total 30 plus DPD, Accrual Loans	3	8
Financing Receivables, 60 to 89 Days Past Due [Member] | Commercial Real Estate Construction - Owner-Occupied [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total 30 plus DPD, Accrual Loans	0	0
Financing Receivables, 60 to 89 Days Past Due [Member] | Commercial Portfolio Segment [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total 30 plus DPD, Accrual Loans	31	15
Financing Receivables, 60 to 89 Days Past Due [Member] | Commercial Investor Real Estate Mortgage [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total 30 plus DPD, Accrual Loans	0	1
Financing Receivables, 60 to 89 Days Past Due [Member] | Commercial Investor Real Estate Construction [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total 30 plus DPD, Accrual Loans	29	0
Financing Receivables, 60 to 89 Days Past Due [Member] | Total Investor Real Estate [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total 30 plus DPD, Accrual Loans	29	1
Financing Receivables, 60 to 89 Days Past Due [Member] | Residential First Mortgage [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total 30 plus DPD, Accrual Loans	42	85
Financing Receivables, 60 to 89 Days Past Due [Member] | Home Equity [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total 30 plus DPD, Accrual Loans	22	27
Financing Receivables, 60 to 89 Days Past Due [Member] | Indirect-vehicles [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total 30 plus DPD, Accrual Loans	10	13
Financing Receivables, 60 to 89 Days Past Due [Member] | Indirect-other consumer [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total 30 plus DPD, Accrual Loans	5	5
Financing Receivables, 60 to 89 Days Past Due [Member] | Consumer Credit Card Financing Receivable [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total 30 plus DPD, Accrual Loans	7	7
Financing Receivables, 60 to 89 Days Past Due [Member] | Other consumer
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total 30 plus DPD, Accrual Loans	4	4
Financing Receivables, 60 to 89 Days Past Due [Member] | Consumer Portfolio Segment [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total 30 plus DPD, Accrual Loans	90	141
Financing Receivables, 30 to 59 Days Past Due [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total 30 plus DPD, Accrual Loans	276	276
Financing Receivables, 30 to 59 Days Past Due [Member] | Commercial And Industrial [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total 30 plus DPD, Accrual Loans	42	28
Financing Receivables, 30 to 59 Days Past Due [Member] | Commercial Real Estate Mortgage - Owner-Occupied [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total 30 plus DPD, Accrual Loans	25	18
Financing Receivables, 30 to 59 Days Past Due [Member] | Commercial Real Estate Construction - Owner-Occupied [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total 30 plus DPD, Accrual Loans	0	0
Financing Receivables, 30 to 59 Days Past Due [Member] | Commercial Portfolio Segment [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total 30 plus DPD, Accrual Loans	67	46
Financing Receivables, 30 to 59 Days Past Due [Member] | Commercial Investor Real Estate Mortgage [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total 30 plus DPD, Accrual Loans	1	1
Financing Receivables, 30 to 59 Days Past Due [Member] | Commercial Investor Real Estate Construction [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total 30 plus DPD, Accrual Loans	0	0
Financing Receivables, 30 to 59 Days Past Due [Member] | Total Investor Real Estate [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total 30 plus DPD, Accrual Loans	1	1
Financing Receivables, 30 to 59 Days Past Due [Member] | Residential First Mortgage [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total 30 plus DPD, Accrual Loans	78	95
Financing Receivables, 30 to 59 Days Past Due [Member] | Home Equity [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total 30 plus DPD, Accrual Loans	62	53
Financing Receivables, 30 to 59 Days Past Due [Member] | Indirect-vehicles [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total 30 plus DPD, Accrual Loans	39	48
Financing Receivables, 30 to 59 Days Past Due [Member] | Indirect-other consumer [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total 30 plus DPD, Accrual Loans	8	9
Financing Receivables, 30 to 59 Days Past Due [Member] | Consumer Credit Card Financing Receivable [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total 30 plus DPD, Accrual Loans	10	11
Financing Receivables, 30 to 59 Days Past Due [Member] | Other consumer
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total 30 plus DPD, Accrual Loans	11	13
Financing Receivables, 30 to 59 Days Past Due [Member] | Consumer Portfolio Segment [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total 30 plus DPD, Accrual Loans	$ 208	$ 229

XML

Loans and the Allowance for Credit Losses (Impaired Financing Receivables) (Details) - USD ($) $ in Millions		3 Months Ended
		Mar. 31, 2018	Mar. 31, 2017	Dec. 31, 2017
Financing Receivable, Impaired [Line Items]
Impaired Financing Receivable, Unpaid Principal Balance	[1]	$ 1,405		$ 1,696
Impaired Financing Receivable Chargeoffs And Payments Applied	[2]	133		138
Impaired Financing Receivable, Recorded Investment	[3]	1,272		1,558
Impaired Financing Receivable, with No Related Allowance, Recorded Investment	[3]	50		50
Impaired Financing Receivable, with Related Allowance, Recorded Investment	[3]	1,222		1,508
Impaired Financing Receivable, Related Allowance		$ 189		$ 226
Impaired Financing Receivable, Coverage Percentage	[4]	22.90%		21.50%
Impaired Financing Receivable, Average Recorded Investment		$ 1,360	$ 1,975
Impaired Financing Receivable, Interest Income Recognized		12	12
Commercial And Industrial [Member]
Financing Receivable, Impaired [Line Items]
Impaired Financing Receivable, Unpaid Principal Balance	[1]	622		$ 634
Impaired Financing Receivable Chargeoffs And Payments Applied	[2]	88		88
Impaired Financing Receivable, Recorded Investment	[3]	534		546
Impaired Financing Receivable, with No Related Allowance, Recorded Investment	[3]	31		30
Impaired Financing Receivable, with Related Allowance, Recorded Investment	[3]	503		516
Impaired Financing Receivable, Related Allowance		$ 111		$ 122
Impaired Financing Receivable, Coverage Percentage	[4]	32.00%		33.10%
Impaired Financing Receivable, Average Recorded Investment		$ 533	819
Impaired Financing Receivable, Interest Income Recognized		3	2
Commercial Real Estate Mortgage - Owner-Occupied [Member]
Financing Receivable, Impaired [Line Items]
Impaired Financing Receivable, Unpaid Principal Balance	[1]	176		$ 223
Impaired Financing Receivable Chargeoffs And Payments Applied	[2]	16		20
Impaired Financing Receivable, Recorded Investment	[3]	160		203
Impaired Financing Receivable, with No Related Allowance, Recorded Investment	[3]	18		20
Impaired Financing Receivable, with Related Allowance, Recorded Investment	[3]	142		183
Impaired Financing Receivable, Related Allowance		$ 37		$ 46
Impaired Financing Receivable, Coverage Percentage	[4]	30.10%		29.60%
Impaired Financing Receivable, Average Recorded Investment		$ 166	264
Impaired Financing Receivable, Interest Income Recognized		3	1
Commercial Real Estate Construction - Owner-Occupied [Member]
Financing Receivable, Impaired [Line Items]
Impaired Financing Receivable, Unpaid Principal Balance	[1]	6		$ 8
Impaired Financing Receivable Chargeoffs And Payments Applied	[2]	0		1
Impaired Financing Receivable, Recorded Investment	[3]	6		7
Impaired Financing Receivable, with No Related Allowance, Recorded Investment	[3]	0		0
Impaired Financing Receivable, with Related Allowance, Recorded Investment	[3]	6		7
Impaired Financing Receivable, Related Allowance		$ 2		$ 3
Impaired Financing Receivable, Coverage Percentage	[4]	33.30%		50.00%
Impaired Financing Receivable, Average Recorded Investment		$ 6	6
Impaired Financing Receivable, Interest Income Recognized		0	0
Commercial Portfolio Segment [Member]
Financing Receivable, Impaired [Line Items]
Impaired Financing Receivable, Unpaid Principal Balance	[1]	804		$ 865
Impaired Financing Receivable Chargeoffs And Payments Applied	[2]	104		109
Impaired Financing Receivable, Recorded Investment	[3]	700		756
Impaired Financing Receivable, with No Related Allowance, Recorded Investment	[3]	49		50
Impaired Financing Receivable, with Related Allowance, Recorded Investment	[3]	651		706
Impaired Financing Receivable, Related Allowance		$ 150		$ 171
Impaired Financing Receivable, Coverage Percentage	[4]	31.60%		32.40%
Impaired Financing Receivable, Average Recorded Investment		$ 705	1,089
Impaired Financing Receivable, Interest Income Recognized		6	3
Commercial Investor Real Estate Mortgage [Member]
Financing Receivable, Impaired [Line Items]
Impaired Financing Receivable, Unpaid Principal Balance	[1]	77		$ 69
Impaired Financing Receivable Chargeoffs And Payments Applied	[2]	10		3
Impaired Financing Receivable, Recorded Investment	[3]	67		66
Impaired Financing Receivable, with No Related Allowance, Recorded Investment	[3]	1		0
Impaired Financing Receivable, with Related Allowance, Recorded Investment	[3]	66		66
Impaired Financing Receivable, Related Allowance		$ 7		$ 5
Impaired Financing Receivable, Coverage Percentage	[4]	22.10%		11.60%
Impaired Financing Receivable, Average Recorded Investment		$ 76	91
Impaired Financing Receivable, Interest Income Recognized		1	1
Commercial Investor Real Estate Construction [Member]
Financing Receivable, Impaired [Line Items]
Impaired Financing Receivable, Unpaid Principal Balance	[1]	30		$ 30
Impaired Financing Receivable Chargeoffs And Payments Applied	[2]	1		0
Impaired Financing Receivable, Recorded Investment	[3]	29		30
Impaired Financing Receivable, with No Related Allowance, Recorded Investment	[3]	0		0
Impaired Financing Receivable, with Related Allowance, Recorded Investment	[3]	29		30
Impaired Financing Receivable, Related Allowance		$ 3		$ 3
Impaired Financing Receivable, Coverage Percentage	[4]	13.30%		10.00%
Impaired Financing Receivable, Average Recorded Investment		$ 30	33
Impaired Financing Receivable, Interest Income Recognized		0	0
Total Investor Real Estate [Member]
Financing Receivable, Impaired [Line Items]
Impaired Financing Receivable, Unpaid Principal Balance	[1]	107		$ 99
Impaired Financing Receivable Chargeoffs And Payments Applied	[2]	11		3
Impaired Financing Receivable, Recorded Investment	[3]	96		96
Impaired Financing Receivable, with No Related Allowance, Recorded Investment	[3]	1		0
Impaired Financing Receivable, with Related Allowance, Recorded Investment	[3]	95		96
Impaired Financing Receivable, Related Allowance		$ 10		$ 8
Impaired Financing Receivable, Coverage Percentage	[4]	19.60%		11.10%
Impaired Financing Receivable, Average Recorded Investment		$ 106	124
Impaired Financing Receivable, Interest Income Recognized		1	1
Residential First Mortgage [Member]
Financing Receivable, Impaired [Line Items]
Impaired Financing Receivable, Unpaid Principal Balance	[1]	235		$ 461
Impaired Financing Receivable Chargeoffs And Payments Applied	[2]	16		24
Impaired Financing Receivable, Recorded Investment	[3]	219		437
Impaired Financing Receivable, with No Related Allowance, Recorded Investment	[3]	0		0
Impaired Financing Receivable, with Related Allowance, Recorded Investment	[3]	219		437
Impaired Financing Receivable, Related Allowance		$ 21		$ 42
Impaired Financing Receivable, Coverage Percentage	[4]	15.70%		14.30%
Impaired Financing Receivable, Average Recorded Investment		$ 288	455
Impaired Financing Receivable, Interest Income Recognized		2	4
Home Equity [Member]
Financing Receivable, Impaired [Line Items]
Impaired Financing Receivable, Unpaid Principal Balance	[1]	250		$ 261
Impaired Financing Receivable Chargeoffs And Payments Applied	[2]	2		2
Impaired Financing Receivable, Recorded Investment	[3]	248		259
Impaired Financing Receivable, with No Related Allowance, Recorded Investment	[3]	0		0
Impaired Financing Receivable, with Related Allowance, Recorded Investment	[3]	248		259
Impaired Financing Receivable, Related Allowance		$ 8		$ 5
Impaired Financing Receivable, Coverage Percentage	[4]	4.00%		2.70%
Impaired Financing Receivable, Average Recorded Investment		$ 252	295
Impaired Financing Receivable, Interest Income Recognized		3	4
Consumer Credit Card Financing Receivable [Member]
Financing Receivable, Impaired [Line Items]
Impaired Financing Receivable, Unpaid Principal Balance	[1]	1		$ 1
Impaired Financing Receivable Chargeoffs And Payments Applied	[2]	0		0
Impaired Financing Receivable, Recorded Investment	[3]	1		1
Impaired Financing Receivable, with No Related Allowance, Recorded Investment	[3]	0		0
Impaired Financing Receivable, with Related Allowance, Recorded Investment	[3]	1		1
Impaired Financing Receivable, Related Allowance		$ 0		$ 0
Impaired Financing Receivable, Coverage Percentage	[4]	0.00%		0.00%
Impaired Financing Receivable, Average Recorded Investment		$ 1	2
Impaired Financing Receivable, Interest Income Recognized		0	0
Other consumer
Financing Receivable, Impaired [Line Items]
Impaired Financing Receivable, Unpaid Principal Balance	[1]	8		$ 9
Impaired Financing Receivable Chargeoffs And Payments Applied	[2]	0		0
Impaired Financing Receivable, Recorded Investment	[3]	8		9
Impaired Financing Receivable, with No Related Allowance, Recorded Investment	[3]	0		0
Impaired Financing Receivable, with Related Allowance, Recorded Investment	[3]	8		9
Impaired Financing Receivable, Related Allowance		$ 0		$ 0
Impaired Financing Receivable, Coverage Percentage	[4]	0.00%		0.00%
Impaired Financing Receivable, Average Recorded Investment		$ 8	10
Impaired Financing Receivable, Interest Income Recognized		0	0
Consumer Portfolio Segment [Member]
Financing Receivable, Impaired [Line Items]
Impaired Financing Receivable, Unpaid Principal Balance	[1]	494		$ 732
Impaired Financing Receivable Chargeoffs And Payments Applied	[2]	18		26
Impaired Financing Receivable, Recorded Investment	[3]	476		706
Impaired Financing Receivable, with No Related Allowance, Recorded Investment	[3]	0		0
Impaired Financing Receivable, with Related Allowance, Recorded Investment	[3]	476		706
Impaired Financing Receivable, Related Allowance		$ 29		$ 47
Impaired Financing Receivable, Coverage Percentage	[4]	9.50%		10.00%
Impaired Financing Receivable, Average Recorded Investment		$ 549	762
Impaired Financing Receivable, Interest Income Recognized		5	$ 8
Non Accrual [Member]
Financing Receivable, Impaired [Line Items]
Impaired Financing Receivable, Unpaid Principal Balance	[1]	633		$ 679
Impaired Financing Receivable Chargeoffs And Payments Applied	[2]	112		109
Impaired Financing Receivable, Recorded Investment	[3]	521		570
Impaired Financing Receivable, with No Related Allowance, Recorded Investment	[3]	50		49
Impaired Financing Receivable, with Related Allowance, Recorded Investment	[3]	471		521
Impaired Financing Receivable, Related Allowance		$ 132		$ 149
Impaired Financing Receivable, Coverage Percentage	[4]	38.50%		38.00%
Non Accrual [Member] | Commercial And Industrial [Member]
Financing Receivable, Impaired [Line Items]
Impaired Financing Receivable, Unpaid Principal Balance	[1]	$ 441		$ 480
Impaired Financing Receivable Chargeoffs And Payments Applied	[2]	81		80
Impaired Financing Receivable, Recorded Investment	[3]	360		400
Impaired Financing Receivable, with No Related Allowance, Recorded Investment	[3]	31		29
Impaired Financing Receivable, with Related Allowance, Recorded Investment	[3]	329		371
Impaired Financing Receivable, Related Allowance		$ 89		$ 103
Impaired Financing Receivable, Coverage Percentage	[4]	38.50%		38.10%
Non Accrual [Member] | Commercial Real Estate Mortgage - Owner-Occupied [Member]
Financing Receivable, Impaired [Line Items]
Impaired Financing Receivable, Unpaid Principal Balance	[1]	$ 113		$ 133
Impaired Financing Receivable Chargeoffs And Payments Applied	[2]	11		15
Impaired Financing Receivable, Recorded Investment	[3]	102		118
Impaired Financing Receivable, with No Related Allowance, Recorded Investment	[3]	18		20
Impaired Financing Receivable, with Related Allowance, Recorded Investment	[3]	84		98
Impaired Financing Receivable, Related Allowance		$ 33		$ 38
Impaired Financing Receivable, Coverage Percentage	[4]	38.90%		39.80%
Non Accrual [Member] | Commercial Real Estate Construction - Owner-Occupied [Member]
Financing Receivable, Impaired [Line Items]
Impaired Financing Receivable, Unpaid Principal Balance	[1]	$ 5		$ 7
Impaired Financing Receivable Chargeoffs And Payments Applied	[2]	0		1
Impaired Financing Receivable, Recorded Investment	[3]	5		6
Impaired Financing Receivable, with No Related Allowance, Recorded Investment	[3]	0		0
Impaired Financing Receivable, with Related Allowance, Recorded Investment	[3]	5		6
Impaired Financing Receivable, Related Allowance		$ 2		$ 3
Impaired Financing Receivable, Coverage Percentage	[4]	40.00%		57.10%
Non Accrual [Member] | Commercial Portfolio Segment [Member]
Financing Receivable, Impaired [Line Items]
Impaired Financing Receivable, Unpaid Principal Balance	[1]	$ 559		$ 620
Impaired Financing Receivable Chargeoffs And Payments Applied	[2]	92		96
Impaired Financing Receivable, Recorded Investment	[3]	467		524
Impaired Financing Receivable, with No Related Allowance, Recorded Investment	[3]	49		49
Impaired Financing Receivable, with Related Allowance, Recorded Investment	[3]	418		475
Impaired Financing Receivable, Related Allowance		$ 124		$ 144
Impaired Financing Receivable, Coverage Percentage	[4]	38.60%		38.70%
Non Accrual [Member] | Commercial Investor Real Estate Mortgage [Member]
Financing Receivable, Impaired [Line Items]
Impaired Financing Receivable, Unpaid Principal Balance	[1]	$ 22		$ 6
Impaired Financing Receivable Chargeoffs And Payments Applied	[2]	8		1
Impaired Financing Receivable, Recorded Investment	[3]	14		5
Impaired Financing Receivable, with No Related Allowance, Recorded Investment	[3]	1		0
Impaired Financing Receivable, with Related Allowance, Recorded Investment	[3]	13		5
Impaired Financing Receivable, Related Allowance		$ 5		$ 2
Impaired Financing Receivable, Coverage Percentage	[4]	59.10%		50.00%
Non Accrual [Member] | Commercial Investor Real Estate Construction [Member]
Financing Receivable, Impaired [Line Items]
Impaired Financing Receivable, Unpaid Principal Balance	[1]	$ 1		$ 1
Impaired Financing Receivable Chargeoffs And Payments Applied	[2]	1		0
Impaired Financing Receivable, Recorded Investment	[3]	0		1
Impaired Financing Receivable, with No Related Allowance, Recorded Investment	[3]	0		0
Impaired Financing Receivable, with Related Allowance, Recorded Investment	[3]	0		1
Impaired Financing Receivable, Related Allowance		$ 0		$ 0
Impaired Financing Receivable, Coverage Percentage	[4]	100.00%		0.00%
Non Accrual [Member] | Total Investor Real Estate [Member]
Financing Receivable, Impaired [Line Items]
Impaired Financing Receivable, Unpaid Principal Balance	[1]	$ 23		$ 7
Impaired Financing Receivable Chargeoffs And Payments Applied	[2]	9		1
Impaired Financing Receivable, Recorded Investment	[3]	14		6
Impaired Financing Receivable, with No Related Allowance, Recorded Investment	[3]	1		0
Impaired Financing Receivable, with Related Allowance, Recorded Investment	[3]	13		6
Impaired Financing Receivable, Related Allowance		$ 5		$ 2
Impaired Financing Receivable, Coverage Percentage	[4]	60.90%		42.90%
Non Accrual [Member] | Residential First Mortgage [Member]
Financing Receivable, Impaired [Line Items]
Impaired Financing Receivable, Unpaid Principal Balance	[1]	$ 41		$ 42
Impaired Financing Receivable Chargeoffs And Payments Applied	[2]	10		11
Impaired Financing Receivable, Recorded Investment	[3]	31		31
Impaired Financing Receivable, with No Related Allowance, Recorded Investment	[3]	0		0
Impaired Financing Receivable, with Related Allowance, Recorded Investment	[3]	31		31
Impaired Financing Receivable, Related Allowance		$ 3		$ 3
Impaired Financing Receivable, Coverage Percentage	[4]	31.70%		33.30%
Non Accrual [Member] | Home Equity [Member]
Financing Receivable, Impaired [Line Items]
Impaired Financing Receivable, Unpaid Principal Balance	[1]	$ 10		$ 10
Impaired Financing Receivable Chargeoffs And Payments Applied	[2]	1		1
Impaired Financing Receivable, Recorded Investment	[3]	9		9
Impaired Financing Receivable, with No Related Allowance, Recorded Investment	[3]	0		0
Impaired Financing Receivable, with Related Allowance, Recorded Investment	[3]	9		9
Impaired Financing Receivable, Related Allowance		$ 0		$ 0
Impaired Financing Receivable, Coverage Percentage	[4]	10.00%		10.00%
Non Accrual [Member] | Consumer Portfolio Segment [Member]
Financing Receivable, Impaired [Line Items]
Impaired Financing Receivable, Unpaid Principal Balance	[1]	$ 51		$ 52
Impaired Financing Receivable Chargeoffs And Payments Applied	[2]	11		12
Impaired Financing Receivable, Recorded Investment	[3]	40		40
Impaired Financing Receivable, with No Related Allowance, Recorded Investment	[3]	0		0
Impaired Financing Receivable, with Related Allowance, Recorded Investment	[3]	40		40
Impaired Financing Receivable, Related Allowance		$ 3		$ 3
Impaired Financing Receivable, Coverage Percentage	[4]	27.50%		28.80%
Accrual [Member]
Financing Receivable, Impaired [Line Items]
Impaired Financing Receivable, Unpaid Principal Balance	[1]	$ 772		$ 1,017
Impaired Financing Receivable Chargeoffs And Payments Applied	[2]	21		29
Impaired Financing Receivable, Recorded Investment	[3]	751		988
Impaired Financing Receivable, with No Related Allowance, Recorded Investment	[3]			1
Impaired Financing Receivable, with Related Allowance, Recorded Investment	[3]			987
Impaired Financing Receivable, Related Allowance		$ 57		$ 77
Impaired Financing Receivable, Coverage Percentage	[4]	10.10%		10.40%
Accrual [Member] | Commercial And Industrial [Member]
Financing Receivable, Impaired [Line Items]
Impaired Financing Receivable, Unpaid Principal Balance	[1]	$ 181		$ 154
Impaired Financing Receivable Chargeoffs And Payments Applied	[2]	7		8
Impaired Financing Receivable, Recorded Investment	[3]	174		146
Impaired Financing Receivable, with No Related Allowance, Recorded Investment	[3]			1
Impaired Financing Receivable, with Related Allowance, Recorded Investment	[3]			145
Impaired Financing Receivable, Related Allowance		$ 22		$ 19
Impaired Financing Receivable, Coverage Percentage	[4]	16.00%		17.50%
Accrual [Member] | Commercial Real Estate Mortgage - Owner-Occupied [Member]
Financing Receivable, Impaired [Line Items]
Impaired Financing Receivable, Unpaid Principal Balance	[1]	$ 63		$ 90
Impaired Financing Receivable Chargeoffs And Payments Applied	[2]	5		5
Impaired Financing Receivable, Recorded Investment	[3]	58		85
Impaired Financing Receivable, with No Related Allowance, Recorded Investment	[3]			0
Impaired Financing Receivable, with Related Allowance, Recorded Investment	[3]			85
Impaired Financing Receivable, Related Allowance		$ 4		$ 8
Impaired Financing Receivable, Coverage Percentage	[4]	14.30%		14.40%
Accrual [Member] | Commercial Real Estate Construction - Owner-Occupied [Member]
Financing Receivable, Impaired [Line Items]
Impaired Financing Receivable, Unpaid Principal Balance	[1]	$ 1		$ 1
Impaired Financing Receivable Chargeoffs And Payments Applied	[2]	0		0
Impaired Financing Receivable, Recorded Investment	[3]	1		1
Impaired Financing Receivable, with No Related Allowance, Recorded Investment	[3]			0
Impaired Financing Receivable, with Related Allowance, Recorded Investment	[3]			1
Impaired Financing Receivable, Related Allowance		$ 0		$ 0
Impaired Financing Receivable, Coverage Percentage	[4]	0.00%		0.00%
Accrual [Member] | Commercial Portfolio Segment [Member]
Financing Receivable, Impaired [Line Items]
Impaired Financing Receivable, Unpaid Principal Balance	[1]	$ 245		$ 245
Impaired Financing Receivable Chargeoffs And Payments Applied	[2]	12		13
Impaired Financing Receivable, Recorded Investment	[3]	233		232
Impaired Financing Receivable, with No Related Allowance, Recorded Investment	[3]			1
Impaired Financing Receivable, with Related Allowance, Recorded Investment	[3]			231
Impaired Financing Receivable, Related Allowance		$ 26		$ 27
Impaired Financing Receivable, Coverage Percentage	[4]	15.50%		16.30%
Accrual [Member] | Commercial Investor Real Estate Mortgage [Member]
Financing Receivable, Impaired [Line Items]
Impaired Financing Receivable, Unpaid Principal Balance	[1]	$ 55		$ 63
Impaired Financing Receivable Chargeoffs And Payments Applied	[2]	2		2
Impaired Financing Receivable, Recorded Investment	[3]	53		61
Impaired Financing Receivable, with No Related Allowance, Recorded Investment	[3]			0
Impaired Financing Receivable, with Related Allowance, Recorded Investment	[3]			61
Impaired Financing Receivable, Related Allowance		$ 2		$ 3
Impaired Financing Receivable, Coverage Percentage	[4]	7.30%		7.90%
Accrual [Member] | Commercial Investor Real Estate Construction [Member]
Financing Receivable, Impaired [Line Items]
Impaired Financing Receivable, Unpaid Principal Balance	[1]	$ 29		$ 29
Impaired Financing Receivable Chargeoffs And Payments Applied	[2]	0		0
Impaired Financing Receivable, Recorded Investment	[3]	29		29
Impaired Financing Receivable, with No Related Allowance, Recorded Investment	[3]			0
Impaired Financing Receivable, with Related Allowance, Recorded Investment	[3]			29
Impaired Financing Receivable, Related Allowance		$ 3		$ 3
Impaired Financing Receivable, Coverage Percentage	[4]	10.30%		10.30%
Accrual [Member] | Total Investor Real Estate [Member]
Financing Receivable, Impaired [Line Items]
Impaired Financing Receivable, Unpaid Principal Balance	[1]	$ 84		$ 92
Impaired Financing Receivable Chargeoffs And Payments Applied	[2]	2		2
Impaired Financing Receivable, Recorded Investment	[3]	82		90
Impaired Financing Receivable, with No Related Allowance, Recorded Investment	[3]			0
Impaired Financing Receivable, with Related Allowance, Recorded Investment	[3]			90
Impaired Financing Receivable, Related Allowance		$ 5		$ 6
Impaired Financing Receivable, Coverage Percentage	[4]	8.30%		8.70%
Accrual [Member] | Residential First Mortgage [Member]
Financing Receivable, Impaired [Line Items]
Impaired Financing Receivable, Unpaid Principal Balance	[1]	$ 194		$ 419
Impaired Financing Receivable Chargeoffs And Payments Applied	[2]	6		13
Impaired Financing Receivable, Recorded Investment	[3]	188		406
Impaired Financing Receivable, with No Related Allowance, Recorded Investment	[3]			0
Impaired Financing Receivable, with Related Allowance, Recorded Investment	[3]			406
Impaired Financing Receivable, Related Allowance		$ 18		$ 39
Impaired Financing Receivable, Coverage Percentage	[4]	12.40%		12.40%
Accrual [Member] | Home Equity [Member]
Financing Receivable, Impaired [Line Items]
Impaired Financing Receivable, Unpaid Principal Balance	[1]	$ 240		$ 251
Impaired Financing Receivable Chargeoffs And Payments Applied	[2]	1		1
Impaired Financing Receivable, Recorded Investment	[3]	239		250
Impaired Financing Receivable, with No Related Allowance, Recorded Investment	[3]			0
Impaired Financing Receivable, with Related Allowance, Recorded Investment	[3]			250
Impaired Financing Receivable, Related Allowance		$ 8		$ 5
Impaired Financing Receivable, Coverage Percentage	[4]	3.80%		2.40%
Accrual [Member] | Consumer Credit Card Financing Receivable [Member]
Financing Receivable, Impaired [Line Items]
Impaired Financing Receivable, Unpaid Principal Balance	[1]	$ 1		$ 1
Impaired Financing Receivable Chargeoffs And Payments Applied	[2]	0		0
Impaired Financing Receivable, Recorded Investment	[3]	1		1
Impaired Financing Receivable, with No Related Allowance, Recorded Investment	[3]			0
Impaired Financing Receivable, with Related Allowance, Recorded Investment	[3]			1
Impaired Financing Receivable, Related Allowance		$ 0		$ 0
Impaired Financing Receivable, Coverage Percentage	[4]	0.00%		0.00%
Accrual [Member] | Other consumer
Financing Receivable, Impaired [Line Items]
Impaired Financing Receivable, Unpaid Principal Balance	[1]	$ 8		$ 9
Impaired Financing Receivable Chargeoffs And Payments Applied	[2]	0		0
Impaired Financing Receivable, Recorded Investment	[3]	8		9
Impaired Financing Receivable, with No Related Allowance, Recorded Investment	[3]			0
Impaired Financing Receivable, with Related Allowance, Recorded Investment	[3]			9
Impaired Financing Receivable, Related Allowance		$ 0		$ 0
Impaired Financing Receivable, Coverage Percentage	[4]	0.00%		0.00%
Accrual [Member] | Consumer Portfolio Segment [Member]
Financing Receivable, Impaired [Line Items]
Impaired Financing Receivable, Unpaid Principal Balance	[1]	$ 443		$ 680
Impaired Financing Receivable Chargeoffs And Payments Applied	[2]	7		14
Impaired Financing Receivable, Recorded Investment	[3]	436		666
Impaired Financing Receivable, with No Related Allowance, Recorded Investment	[3]			0
Impaired Financing Receivable, with Related Allowance, Recorded Investment	[3]			666
Impaired Financing Receivable, Related Allowance		$ 26		$ 44
Impaired Financing Receivable, Coverage Percentage	[4]	7.40%		8.50%

[1] Unpaid principal balance represents the contractual obligation due from the customer and includes the net book value plus charge-offs and payments applied.

[2] Charge-offs and payments applied represents cumulative partial charge-offs taken, as well as interest payments received that have been applied against the outstanding principal balance.

[3] Book value represents the unpaid principal balance less charge-offs and payments applied; it is shown before any allowance for loan losses.

[4] Coverage % represents charge-offs and payments applied plus the related allowance as a percent of the unpaid principal balance.

XML

Loans and the Allowance for Credit Losses (Loans By Class Modified In TDR) (Details) $ in Millions	3 Months Ended
	Mar. 31, 2018 USD ($) obligor	Mar. 31, 2017 USD ($) obligor Obligator
Financing Receivable, Modifications [Line Items]
Number of Obligors | obligor	154	252
Financing Receivable, Modifications, Post-Modification Recorded Investment	$ 206	$ 187
Increase in Allowance at Modification	$ 4	$ 6
Commercial And Industrial [Member]
Financing Receivable, Modifications [Line Items]
Number of Obligors | obligor	29	31
Financing Receivable, Modifications, Post-Modification Recorded Investment	$ 164	$ 99
Increase in Allowance at Modification	$ 2	$ 3
Commercial Real Estate Mortgage - Owner-Occupied [Member]
Financing Receivable, Modifications [Line Items]
Number of Obligors | obligor	18	31
Financing Receivable, Modifications, Post-Modification Recorded Investment	$ 14	$ 28
Increase in Allowance at Modification	$ 0	$ 1
Commercial Real Estate Construction - Owner-Occupied [Member]
Financing Receivable, Modifications [Line Items]
Number of Obligors | Obligator		2
Financing Receivable, Modifications, Post-Modification Recorded Investment		$ 1
Increase in Allowance at Modification		$ 0
Commercial investor real estate mortgage [Member]
Financing Receivable, Modifications [Line Items]
Number of Obligors | obligor	10	12
Financing Receivable, Modifications, Post-Modification Recorded Investment	$ 19	$ 19
Increase in Allowance at Modification	$ 1	$ 0
Commercial Investor Real Estate Construction [Member]
Financing Receivable, Modifications [Line Items]
Number of Obligors | obligor		3
Financing Receivable, Modifications, Post-Modification Recorded Investment		$ 26
Increase in Allowance at Modification		$ 1
Residential First Mortgage [Member]
Financing Receivable, Modifications [Line Items]
Number of Obligors | obligor	53	49
Financing Receivable, Modifications, Post-Modification Recorded Investment	$ 8	$ 8
Increase in Allowance at Modification	$ 1	$ 1
Home Equity [Member]
Financing Receivable, Modifications [Line Items]
Number of Obligors | obligor	17	58
Financing Receivable, Modifications, Post-Modification Recorded Investment	$ 1	$ 5
Increase in Allowance at Modification	$ 0	$ 0
Consumer Credit Card Financing Receivable [Member]
Financing Receivable, Modifications [Line Items]
Number of Obligors | obligor	14	19
Financing Receivable, Modifications, Post-Modification Recorded Investment	$ 0	$ 0
Increase in Allowance at Modification	$ 0	$ 0
Indirect-vehicles and other consumer [Member]
Financing Receivable, Modifications [Line Items]
Number of Obligors | obligor	13	47
Financing Receivable, Modifications, Post-Modification Recorded Investment	$ 0	$ 1
Increase in Allowance at Modification	$ 0	$ 0
Commercial Portfolio Segment [Member]
Financing Receivable, Modifications [Line Items]
Number of Obligors | obligor	47	64
Financing Receivable, Modifications, Post-Modification Recorded Investment	$ 178	$ 128
Increase in Allowance at Modification	$ 2	$ 4
Total Investor Real Estate [Member]
Financing Receivable, Modifications [Line Items]
Number of Obligors | obligor	10	15
Financing Receivable, Modifications, Post-Modification Recorded Investment	$ 19	$ 45
Increase in Allowance at Modification	$ 1	$ 1
Consumer Portfolio Segment [Member]
Financing Receivable, Modifications [Line Items]
Number of Obligors | obligor	97	173
Financing Receivable, Modifications, Post-Modification Recorded Investment	$ 9	$ 14
Increase in Allowance at Modification	$ 1	$ 1

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Loans and the Allowance for Credit Losses (Narrative) (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2018	Mar. 31, 2017
Accounts, Notes, Loans and Financing Receivable [Line Items]
Performing TDR and certain non-restructured interest-only loan sale	$ 254
Amount of loans first reported as new TDRs	171	$ 128
Re-Defaulted Commercial And Investor Real Estate Loans Modified In Tdr During Period And On Non Accrual Status	118
Total Restructured Binding Unfunded Commitment	21
Federal Home Loan Bank [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Pledged loans	22,100
Federal Reserve Bank [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Pledged loans	22,100
Indirect-other consumer [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
loans purchased	$ 70	$ 4
Residential First Mortgage [Member] | Minimum [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing period for consumer loans, in years	15 years
Residential First Mortgage [Member] | Maximum [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing period for consumer loans, in years	30 years

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Servicing of Financial Assets (Analysis Of Residential Mortgage Servicing Rights Under The Fair Value Measurement Method) (Details) - USD ($) $ in Millions		3 Months Ended
		Mar. 31, 2018	Mar. 31, 2017
Servicing Asset at Fair Value, Amount [Roll Forward]
Carrying value, beginning of period		$ 336	$ 324
Additions		8	8
Increase (decrease) in fair value, due to change in valuation inputs or assumptions		22	4
Increase (decrease) in fair value, economic amortization associated with borrower repayments	[1]	(10)	(10)
Carrying value, end of period		$ 356	$ 326

[1] "Economic amortization associated with borrower repayments" includes both total loan payoffs as well as partial paydowns.

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Servicing of Financial Assets (Data And Assumptions Used In The Fair Value Calculation As Well As The Valuation's Sensitivity To Rate Fluctuations Related To Residential Mortgage Servicing Rights) (Details) $ in Millions	3 Months Ended
	Mar. 31, 2018 USD ($) basis_point	Mar. 31, 2017 USD ($) basis_point
Servicing Assets at Fair Value [Line Items]
Unpaid principal balance	$ 31,641	$ 30,960
Weighted-average prepayment speed (CPR; percentage)	9.00%	7.60%
Estimated impact on fair value of a 10% increase in prepayment speed	$ (24)	$ (19)
Estimated impact on fair value of a 20% increase in prepayment speed	$ (43)	$ (34)
Option-adjusted spread (basis points) | basis_point	842	1,058
Estimated impact on fair value of a 10% increase in other assumptions	$ (12)	$ (13)
Estimated impact on fair value of a 20% increase in other assumptions	$ (24)	$ (27)
Weighted-average coupon interest rate	4.10%	4.20%
Assumption for Fair Value of Assets or Liabilities that relate to Transferor's Continuing Involvement, Weighted Average Life	280 months	280 months
Weighted Average Servicing Fee Basis Points | basis_point	27.3	27.4

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Servicing of Financial Assets (Schedule Of Fees Resulting From The Servicing Of Mortgage Loans) (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2018	Mar. 31, 2017
Transfers and Servicing of Financial Assets [Abstract]
Servicing related fees and other ancillary income	$ 23	$ 23

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Servicing of Financial Assets (Narrative) (Details) - USD ($) $ in Millions		3 Months Ended
	Apr. 28, 2017	Mar. 31, 2018	Mar. 31, 2017	Dec. 31, 2017
Servicing Assets at Fair Value [Line Items]
Unpaid Principal Balance of Outstanding Underlying MSRs Purchased	$ 2,700
Payments to Acquire Mortgage Servicing Rights (MSR)	$ 30	$ 2	$ 8
Unpaid principal balance		31,641	$ 30,960
DUS Portfolio [Member]
Servicing Assets at Fair Value [Line Items]
Unpaid principal balance		2,800		$ 2,900
Commercial Real Estate [Member]
Servicing Assets at Fair Value [Line Items]
Servicing Asset at Amortized Cost		47		48
Loss Share Guarantee		$ 4		$ 4

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Goodwill (Schedule of Goodwill) (Details) $ in Millions	3 Months Ended
	Mar. 31, 2018 USD ($) unit	Dec. 31, 2017 USD ($)
Goodwill [Line Items]
Goodwill	$ 4,904	$ 4,904
Number of reporting units | unit	3
Corporate Bank [Member]
Goodwill [Line Items]
Goodwill	$ 2,474	2,474
Consumer Bank [Member]
Goodwill [Line Items]
Goodwill	1,978	1,978
Wealth Management [Member]
Goodwill [Line Items]
Goodwill	$ 452	$ 452

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Preferred Stock Issuances (Details) - USD ($) $ in Millions		3 Months Ended	120 Months Ended
		Mar. 31, 2018	Sep. 15, 2024	Dec. 31, 2017
Class of Stock [Line Items]
Preferred Stock, Liquidation Preference, Value		$ 1,000
Preferred Stock, Carrying Amount		$ 820		$ 820
Series A Preferred Stock [Member]
Class of Stock [Line Items]
Preferred Stock, Dividend Rate, Percentage		6.375%
Preferred Stock, Liquidation Preference, Value		$ 500
Preferred Stock, Carrying Amount		$ 387		387
Series B Preferred Stock [Member]
Class of Stock [Line Items]
Preferred Stock, Dividend Rate, Percentage	[1]	6.375%
Preferred Stock, Liquidation Preference, Value		$ 500
Preferred Stock, Carrying Amount		$ 433		$ 433
Forecast [Member] | Series B Preferred Stock Dividend Scenario 1 [Member]
Class of Stock [Line Items]
Preferred Stock, Dividend Rate, Percentage			6.375%
Plus 3-Month LIBOR [Member] | Forecast [Member] | Series B Preferred Stock Dividend Scenario 2 [Member]
Class of Stock [Line Items]
Preferred Stock, Dividend Rate, Basis Spread on Variable Rate, Percentage			3.536%

[1] Dividends, if declared, will be paid quarterly at an annual rate equal to (i) for each period beginning prior to September 15, 2024, 6.375%, and (ii) for each period beginning on or after September 15, 2024, three-month LIBOR plus 3.536%.

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Schedule of Accumulated Other Comprehensive Income (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2018	Mar. 31, 2017
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Accumulated Other Comprehensive Income (Loss), Net of Tax, Period Start	$ (749)	$ (550)
Other comprehensive income (loss), net of tax	(402)	(15)
Accumulated Other Comprehensive Income (Loss), Net of Tax, Period End	(1,151)	(565)
Accumulated Net Unrealized Loss on Held To Maturity Securities [Member]
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Accumulated Other Comprehensive Income (Loss), Net of Tax, Period Start	(33)	(33)
Other comprehensive income (loss), net of tax	2	2
Accumulated Other Comprehensive Income (Loss), Net of Tax, Period End	(31)	(31)
Accumulated Net Unrealized Securities Available For Sale Gain (Loss) [Member]
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Accumulated Other Comprehensive Income (Loss), Net of Tax, Period Start	(153)	(106)
Other comprehensive income (loss), net of tax	(310)	1
Accumulated Other Comprehensive Income (Loss), Net of Tax, Period End	(463)	(105)
Accumulated Net Gain (Loss) from Derivative Instruments Designated as Cash Flow Hedges [Member]
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Accumulated Other Comprehensive Income (Loss), Net of Tax, Period Start	(51)	11
Other comprehensive income (loss), net of tax	(100)	(23)
Accumulated Other Comprehensive Income (Loss), Net of Tax, Period End	(151)	(12)
Accumulated Defined Benefit Plans Adjustment [Member]
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Accumulated Other Comprehensive Income (Loss), Net of Tax, Period Start	(512)	(422)
Other comprehensive income (loss), net of tax	6	5
Accumulated Other Comprehensive Income (Loss), Net of Tax, Period End	$ (506)	$ (417)

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Reclassification from Accumulated Other Comprehensive Income (Details) - USD ($) $ in Millions		3 Months Ended
		Mar. 31, 2018	Mar. 31, 2017
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Interest Income (Expense), Net		$ 909	$ 859
Other Noninterest Expense		(225)	(220)
Income tax (expense) benefit		(128)	(127)
Net income		414	301
Reclassification out of Accumulated Other Comprehensive Income [Member]
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Net income	[1]	(1)	11
Accumulated Net Unrealized Loss on Held To Maturity Securities [Member] | Reclassification out of Accumulated Other Comprehensive Income [Member]
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Interest Income (Expense), Net	[1]	(3)	(3)
Income tax (expense) benefit	[1]	1	1
Net income	[1]	(2)	(2)
Accumulated Net Unrealized Securities Available For Sale Gain (Loss) [Member] | Reclassification out of Accumulated Other Comprehensive Income [Member]
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Securities gains (losses), net	[1]	0	0
Income tax (expense) benefit	[1]	0	0
Net income	[1]	0	0
Accumulated Net Gain (Loss) from Derivative Instruments Designated as Cash Flow Hedges [Member] | Reclassification out of Accumulated Other Comprehensive Income [Member]
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Interest Income (Expense), Net	[1]	11	31
Income tax (expense) benefit	[1]	(3)	(12)
Net income	[1]	8	19
Accumulated Defined Benefit Plans Adjustment, Net Unamortized Gain (Loss) [Member] | Reclassification out of Accumulated Other Comprehensive Income [Member]
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Other Noninterest Expense	[1],[2]	(9)	(9)
Accumulated Defined Benefit Plans Adjustment [Member] | Reclassification out of Accumulated Other Comprehensive Income [Member]
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Other Noninterest Expense	[1]	(9)	(9)
Income tax (expense) benefit	[1]	2	3
Net income	[1]	$ (7)	$ (6)

[1] (1) Amounts in parentheses indicate reductions to net income.

[2] (2) This accumulated other comprehensive income (loss) component is included in the computation of net periodic pension cost and is included in other non-interest expense on the consolidated statements of income (see Note 9 for additional details).

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Stockholders' Equity And Accumulated Other Comprehensive Income (Loss) (Narrative) (Details) - USD ($) $ / shares in Units, shares in Millions			3 Months Ended		120 Months Ended
		May 08, 2018	Mar. 31, 2018	Mar. 31, 2017	Sep. 15, 2024	Dec. 15, 2017	Jun. 28, 2017
Stockholders' Equity And Comprehensive Income (Loss) [Line Items]
Dividends, Preferred Stock			$ 16,000,000	$ 16,000,000
Cash dividend declared (in dollars per share)			$ 0.09	$ 0.065
Stock repurchase plan (in shares)							$ 1,470,000,000.00
Shares repurchased (in shares)			78.1
ValueofTotalCommonStockRepurchasedUnderCurrentRepurchaseProgram			$ 1,200,000,000
Payments for Repurchase of Common Stock			$ 235,000,000	$ 150,000,000
Subsequent Event [Member]
Stockholders' Equity And Comprehensive Income (Loss) [Line Items]
Shares repurchased (in shares)		6.9
Payments for Repurchase of Common Stock		$ 129,100,000
Series B Preferred Stock Dividend Scenario 1 [Member] | Forecast [Member]
Stockholders' Equity And Comprehensive Income (Loss) [Line Items]
Preferred Stock, Dividend Rate, Percentage					6.375%
Series B Preferred Stock Dividend Scenario 2 [Member] | Forecast [Member] | Plus 3-Month LIBOR [Member]
Stockholders' Equity And Comprehensive Income (Loss) [Line Items]
Preferred Stock, Dividend Rate, Basis Spread on Variable Rate, Percentage					3.536%
Series A Preferred Stock [Member]
Stockholders' Equity And Comprehensive Income (Loss) [Line Items]
Preferred Stock, Dividend Rate, Percentage			6.375%
Dividends, Preferred Stock			$ 8,000,000	8,000,000
ExcessofRedemptionAmountOverCarryingAmount						$ 113,000,000
PreferredDividendsReductiontoRetainedEarningsatRedemption						100,000,000
PreferredStockIssuanceCostsReductiontoNetIncome						$ 13,000,000
Series A Preferred Stock [Member] | Debt Instrument, Redemption, Period One [Member]
Stockholders' Equity And Comprehensive Income (Loss) [Line Items]
Preferred Stock, Redemption Terms			90 days
Series B Preferred Stock [Member]
Stockholders' Equity And Comprehensive Income (Loss) [Line Items]
Preferred Stock, Dividend Rate, Percentage	[1]		6.375%
Dividends, Preferred Stock			$ 8,000,000	$ 8,000,000
Series B Preferred Stock [Member] | Forecast [Member]
Stockholders' Equity And Comprehensive Income (Loss) [Line Items]
ExcessofRedemptionAmountOverCarryingAmount					$ 67,000,000
PreferredDividendsReductiontoRetainedEarningsatRedemption					52,000,000
PreferredStockIssuanceCostsReductiontoNetIncome					$ 15,000,000
Preferred Stock [Member]
Stockholders' Equity And Comprehensive Income (Loss) [Line Items]
Preferred Stock, liquidation preference per share (in dollars per share)			$ 1,000.00
Preferred Stock [Member] | Depositary Shares [Member]
Stockholders' Equity And Comprehensive Income (Loss) [Line Items]
Preferred Stock, liquidation preference per share (in dollars per share)			$ 25

[1] Dividends, if declared, will be paid quarterly at an annual rate equal to (i) for each period beginning prior to September 15, 2024, 6.375%, and (ii) for each period beginning on or after September 15, 2024, three-month LIBOR plus 3.536%.

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Earnings (Loss) Per Common Share (Computation Of Basic And Diluted Earnings (Loss) Per Common Share) (Details) - USD ($) $ / shares in Units, shares in Millions, $ in Millions		3 Months Ended
		Mar. 31, 2018	Mar. 31, 2017
Numerator:
Income from continuing operations		$ 414	$ 293
Preferred stock dividends		(16)	(16)
Net Income Loss From Continuing Operations Available To Common Stockholders Basic		398	277
Income (loss) from discontinued operations, net of tax		0	8
Net income available to common shareholders		$ 398	$ 285
Denominator:
Weighted-average common shares outstanding—basic (in shares)		1,127	1,209
Potential common shares (in shares)		14	15
Weighted-average common shares outstanding—diluted (in shares)		1,141	1,224
Earnings per common share from continuing operations:
Basic (in dollars per share)	[1]	$ 0.35	$ 0.23
Diluted (in dollars per share)	[1]	0.35	0.23
Earning (Loss) Per Common Share From Discontinued Operations:
Basic (in dollars per share)	[1]	0.00	0.01
Diluted (in dollars per share)	[1]	0.00	0.01
Earnings per common share:
Basic (in dollars per share)	[1]	0.35	0.24
Diluted (in dollars per share)	[1]	$ 0.35	$ 0.23
Antidilutive Securities Excluded from Computation of Earnings Per Share (in shares)		6	15

[1] Certain per share amounts may not appear to reconcile due to rounding.

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Pension and Other Postretirement Benefits (Schedule of Net Periodic Pension Cost) (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2018	Mar. 31, 2017
Defined Benefit Plan Disclosure [Line Items]
Service Cost	$ 10	$ 9
Interest Cost	19	19
Expected Return on Plan Assets	(37)	(35)
Amortization of Actuarial Loss	9	9
Net Periodic Pension Cost (Credit)	1	2
Contributions by Employer	100
Qualified Plans [Member]
Defined Benefit Plan Disclosure [Line Items]
Service Cost	9	8
Interest Cost	18	18
Expected Return on Plan Assets	(37)	(35)
Amortization of Actuarial Loss	8	8
Net Periodic Pension Cost (Credit)	(2)	(1)
Nonqualified Plans [Member]
Defined Benefit Plan Disclosure [Line Items]
Service Cost	1	1
Interest Cost	1	1
Expected Return on Plan Assets	0	0
Amortization of Actuarial Loss	1	1
Net Periodic Pension Cost (Credit)	$ 3	$ 3

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Derivative Financial Instruments and Hedging Activities (Schedule of Derivative Instruments Notional and Fair Value) (Details) - USD ($) $ in Millions		Mar. 31, 2018	Dec. 31, 2017
Derivatives, Fair Value [Line Items]
Notional Amount		$ 106,058	$ 81,449
Estimated Fair Value, Gain	[1]	248	394
Estimated Fair Value, Loss	[1]	396	641
Derivative Asset, Fair Value of Derivative Contracts Offset in Accordance with Policy Election that were Offset Under Master Netting Agreements		112	107
Derivative Liability, Fair Value of Derivative Contracts Offset In Accordance with Policy Election that were Offset Under Master Netting Agreements		112	107
Derivative Asset, Collateral, Obligation to Return Cash, Offset		30	34
Derivative Liability, Collateral, Right to Reclaim Cash, Offset		113	131
Derivative Asset	[2]	106	253
Derivative Liabilities	[2]	171	403
Derivative, Collateral, Right to Reclaim Securities		49	50
Derivative, Collateral, Right to Reclaim Cash			257
Designated as Hedging Instrument [Member]
Derivatives, Fair Value [Line Items]
Notional Amount		11,422	9,885
Estimated Fair Value, Gain	[1]		6
Estimated Fair Value, Loss	[1]		231
Not Designated as Hedging Instrument [Member]
Derivatives, Fair Value [Line Items]
Notional Amount		94,636	71,564
Estimated Fair Value, Gain	[1]	248	388
Estimated Fair Value, Loss	[1]	396	410
Interest Rate Swaps [Member] | Not Designated as Hedging Instrument [Member]
Derivatives, Fair Value [Line Items]
Notional Amount		41,166	40,841
Interest Rate Swaps [Member] | Not Designated as Hedging Instrument [Member] | Other Assets [Member]
Derivatives, Fair Value [Line Items]
Estimated Fair Value, Gain	[1]	140	308
Interest Rate Swaps [Member] | Not Designated as Hedging Instrument [Member] | Other Liabilities [Member]
Derivatives, Fair Value [Line Items]
Estimated Fair Value, Loss	[1]	307	342
Interest Rate Options [Member] | Not Designated as Hedging Instrument [Member]
Derivatives, Fair Value [Line Items]
Notional Amount		5,063	4,598
Interest Rate Options [Member] | Not Designated as Hedging Instrument [Member] | Other Assets [Member]
Derivatives, Fair Value [Line Items]
Estimated Fair Value, Gain	[1]	39	23
Interest Rate Options [Member] | Not Designated as Hedging Instrument [Member] | Other Liabilities [Member]
Derivatives, Fair Value [Line Items]
Estimated Fair Value, Loss	[1]	23	15
Interest Rate Futures And Forward Commitments [Member] | Not Designated as Hedging Instrument [Member]
Derivatives, Fair Value [Line Items]
Notional Amount		42,341	20,404
Interest Rate Futures And Forward Commitments [Member] | Not Designated as Hedging Instrument [Member] | Other Assets [Member]
Derivatives, Fair Value [Line Items]
Estimated Fair Value, Gain	[1]	10	6
Interest Rate Futures And Forward Commitments [Member] | Not Designated as Hedging Instrument [Member] | Other Liabilities [Member]
Derivatives, Fair Value [Line Items]
Estimated Fair Value, Loss	[1]	11	5
Other Contract [Member] | Not Designated as Hedging Instrument [Member]
Derivatives, Fair Value [Line Items]
Notional Amount		6,066	5,721
Other Contract [Member] | Not Designated as Hedging Instrument [Member] | Other Assets [Member]
Derivatives, Fair Value [Line Items]
Estimated Fair Value, Gain	[1]	59	51
Other Contract [Member] | Not Designated as Hedging Instrument [Member] | Other Liabilities [Member]
Derivatives, Fair Value [Line Items]
Estimated Fair Value, Loss	[1]	55	48
Fair Value Hedging [Member] | Interest Rate Swaps [Member] | Designated as Hedging Instrument [Member]
Derivatives, Fair Value [Line Items]
Notional Amount		3,597	3,060
Fair Value Hedging [Member] | Interest Rate Swaps [Member] | Designated as Hedging Instrument [Member] | Other Assets [Member]
Derivatives, Fair Value [Line Items]
Estimated Fair Value, Gain	[1]		1
Fair Value Hedging [Member] | Interest Rate Swaps [Member] | Designated as Hedging Instrument [Member] | Other Liabilities [Member]
Derivatives, Fair Value [Line Items]
Estimated Fair Value, Loss	[1]		43
Cash Flow Hedging [Member] | Interest Rate Swaps [Member] | Designated as Hedging Instrument [Member]
Derivatives, Fair Value [Line Items]
Notional Amount		$ 7,825	6,825
Cash Flow Hedging [Member] | Interest Rate Swaps [Member] | Designated as Hedging Instrument [Member] | Other Assets [Member]
Derivatives, Fair Value [Line Items]
Estimated Fair Value, Gain	[1]		5
Cash Flow Hedging [Member] | Interest Rate Swaps [Member] | Designated as Hedging Instrument [Member] | Other Liabilities [Member]
Derivatives, Fair Value [Line Items]
Estimated Fair Value, Loss	[1]		$ 188

[1] Derivatives in a gain position are recorded as other assets and derivatives in a loss position are recorded as other liabilities on the consolidated balance sheets. There is no fair value presented for contracts that are characterized as settled daily.

[2] As of March 31, 2018, financial instruments posted of $49 million were not offset in the consolidated balance sheets. As of December 31, 2017, cash collateral posted of $257 million and financial instruments posted of $50 million were not offset in the consolidated balance sheets.

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Derivative Financial Instruments And Hedging Activities (Schedule Of The Effect Of Derivative Instruments On The Statements Of Operations) (Details) - USD ($) $ in Millions		3 Months Ended
		Mar. 31, 2018	Mar. 31, 2017
Derivative Instruments, Gain (Loss) [Line Items]
Debt securities - taxable		$ 154	$ 147
Loans, including fees		851	773
Deposits		49	35
Long-term borrowings		72	50
Other		225	220
Fair Value Hedging [Member] | Interest Rate Contract [Member] | Taxable Debt Securities in Interest Income [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Amounts Related to Interest Settlements on Derivatives		0	(1)
Gain or (Loss) Recognized in Income on Derivatives		3	0
Gain or (Loss) Recognized in Income on Related Hedged Item		(3)	0
Gain (Loss) on Fair Value Hedges Recognized in Earnings		0	(1)
Fair Value Hedging [Member] | Interest Rate Contract [Member] | Loans Including Fees in Interest Income [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Amounts Related to Interest Settlements on Derivatives		0	0
Gain or (Loss) Recognized in Income on Derivatives		0	0
Gain or (Loss) Recognized in Income on Related Hedged Item		0	0
Gain (Loss) on Fair Value Hedges Recognized in Earnings		0	0
Fair Value Hedging [Member] | Interest Rate Contract [Member] | Deposits in Interest Expense [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Amounts Related to Interest Settlements on Derivatives		0	0
Gain or (Loss) Recognized in Income on Derivatives		0	0
Gain or (Loss) Recognized in Income on Related Hedged Item		0	0
Gain (Loss) on Fair Value Hedges Recognized in Earnings		0	0
Fair Value Hedging [Member] | Interest Rate Contract [Member] | Long-term Borrowings In Interest Expense [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Amounts Related to Interest Settlements on Derivatives		(1)	1
Gain or (Loss) Recognized in Income on Derivatives		(32)	0
Gain or (Loss) Recognized in Income on Related Hedged Item		32	0
Gain (Loss) on Fair Value Hedges Recognized in Earnings		(1)	1
Fair Value Hedging [Member] | Interest Rate Contract [Member] | Other in Non-Interest Expense [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Amounts Related to Interest Settlements on Derivatives		0	0
Gain or (Loss) Recognized in Income on Derivatives		0	0
Gain or (Loss) Recognized in Income on Related Hedged Item		0	0
Gain (Loss) on Fair Value Hedges Recognized in Earnings		0	0
Cash Flow Hedging [Member] | Interest Rate Contract [Member] | Taxable Debt Securities in Interest Income [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Gain or (Loss) Reclassified from AOCI into Income	[1]	0	0
Net Income (Expense) Recognized on Cash Flow Hedges	[2]	0	0
Cash Flow Hedging [Member] | Interest Rate Contract [Member] | Loans Including Fees in Interest Income [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Gain or (Loss) Reclassified from AOCI into Income	[1]	11	31
Net Income (Expense) Recognized on Cash Flow Hedges	[2]	11	31
Cash Flow Hedging [Member] | Interest Rate Contract [Member] | Deposits in Interest Expense [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Gain or (Loss) Reclassified from AOCI into Income	[1]	0	0
Net Income (Expense) Recognized on Cash Flow Hedges	[2]	0	0
Cash Flow Hedging [Member] | Interest Rate Contract [Member] | Long-term Borrowings In Interest Expense [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Gain or (Loss) Reclassified from AOCI into Income	[1]	0	0
Net Income (Expense) Recognized on Cash Flow Hedges	[2]	0	0
Cash Flow Hedging [Member] | Interest Rate Contract [Member] | Other in Non-Interest Expense [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Gain or (Loss) Reclassified from AOCI into Income	[1]	0	0
Net Income (Expense) Recognized on Cash Flow Hedges	[2]	$ 0	$ 0

[1] Pre-tax

[2] See Note 7 for gain or (loss) recognized for cash flow hedges in AOCI.

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Derivative Financial Instruments and Hedging Activities (Schedule of Fair Value Hedging Basis Adjustments) (Details) $ in Millions	Mar. 31, 2018 USD ($)
Designated as Hedging Item [Member] | Debt Available-for-sale Securities [Member]
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Carrying Amount of Assets	$ 210
Hedge Liability, Fair Value Hedge, Cumulative Basis Adjustment	(3)
Designated as Hedging Item [Member] | Long-term Debt [Member]
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Carrying Amount of Liabilities	(3,321)
Hedge Asset, Fair Value Hedge, Cumulative Basis Adjustment	82
Not Designated as Hedging Item [Member] | Debt Available-for-sale Securities [Member]
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Carrying Amount of Assets	577
Hedge Asset, Fair Value Hedge, Cumulative Basis Adjustment	7
Not Designated as Hedging Item [Member] | Long-term Debt [Member]
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Carrying Amount of Liabilities	(101)
Hedge Asset, Fair Value Hedge, Cumulative Basis Adjustment	$ 0

XML

Derivative Financial Instruments and Hedging Activities (Schedule of Gains (Losses) Recognized Related to Derivatives Not Designated as Hedging Instruments) (Details) - USD ($) $ in Millions		3 Months Ended
		Mar. 31, 2018	Mar. 31, 2017
Derivative [Line Items]
Gain or (Loss) of Derivatives Not Designated as Hedging Instruments		$ (1)	$ (10)
Capital Markets Fee Income [Member]
Derivative [Line Items]
Gain or (Loss) of Derivatives Not Designated as Hedging Instruments	[1]	17	(2)
Capital Markets Fee Income [Member] | Interest Rate Swaps [Member]
Derivative [Line Items]
Gain or (Loss) of Derivatives Not Designated as Hedging Instruments	[1]	7	2
Capital Markets Fee Income [Member] | Interest Rate Options [Member]
Derivative [Line Items]
Gain or (Loss) of Derivatives Not Designated as Hedging Instruments	[1]	7	2
Capital Markets Fee Income [Member] | Interest Rate Futures And Forward Commitments [Member]
Derivative [Line Items]
Gain or (Loss) of Derivatives Not Designated as Hedging Instruments	[1]	1	2
Capital Markets Fee Income [Member] | Other Contract [Member]
Derivative [Line Items]
Gain or (Loss) of Derivatives Not Designated as Hedging Instruments	[1]	2	(8)
Mortgage Income [Member]
Derivative [Line Items]
Gain or (Loss) of Derivatives Not Designated as Hedging Instruments		(18)	(8)
Mortgage Income [Member] | Interest Rate Swaps [Member]
Derivative [Line Items]
Gain or (Loss) of Derivatives Not Designated as Hedging Instruments		(18)	(2)
Mortgage Income [Member] | Interest Rate Options [Member]
Derivative [Line Items]
Gain or (Loss) of Derivatives Not Designated as Hedging Instruments		3	2
Mortgage Income [Member] | Interest Rate Futures And Forward Commitments [Member]
Derivative [Line Items]
Gain or (Loss) of Derivatives Not Designated as Hedging Instruments		$ (3)	$ (8)

[1] Capital markets fee income and other is included in Other income on the consolidated statements of income.

XML

Derivative Financial Instruments And Hedging Activities (Narrative) (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2018	Mar. 31, 2017	Dec. 31, 2017
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Terminated Cash Flow Hedge Unrealized Gain (Loss) To Be Reclassified From OCI, After Tax Amount	$ 136	$ 154
Cash Flow Hedge Pre Tax Income (Loss)	15	$ 19
Cash flow hedge gain expected to be reclassified from other comprehensive income into earnings within the next 12 months	4
Pre-tax net income related to amortization of discontinued cash flow hedges	$ 50
Maximum Length of Time Hedged in Cash Flow Hedge	7 years
Derivative, Notional Amount	$ 106,058		$ 81,449
Credit risk, defined as all positive exposures not collateralized	94		251
Maximum potential future exposure on swap participations	400
Aggregate fair value of all derivative instruments with credit risk	71		91
Posted collateral related to derivative instruments with credit risk	74		90
Designated as Hedging Instrument [Member]
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Derivative, Notional Amount	11,422		9,885
Not Designated as Hedging Instrument [Member]
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Derivative, Notional Amount	94,636		71,564
Interest Rate Swaps [Member] | Not Designated as Hedging Instrument [Member]
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Derivative, Notional Amount	41,166		40,841
Interest Rate Lock Commitments [Member] | Not Designated as Hedging Instrument [Member]
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Derivative, Notional Amount	372		197
Forward Sale Commitments [Member] | Not Designated as Hedging Instrument [Member]
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Derivative, Notional Amount	737		481
Forward Rate Commitments and Futures Contracts [Member] | Not Designated as Hedging Instrument [Member]
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Derivative, Notional Amount	5,000		4,800
Cash Flow Hedging [Member] | Interest Rate Swaps [Member] | Designated as Hedging Instrument [Member]
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Derivative, Notional Amount	$ 7,825		$ 6,825

XML

Fair Value Measurements (Schedule Of Assets And Liabilities At Fair Value Measured On A Recurring Basis And Non-Recurring Basis) (Details) - USD ($) $ in Millions		Mar. 31, 2018	Dec. 31, 2017	Mar. 31, 2017	Dec. 31, 2016
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale Securities, Debt Securities		$ 23,085	$ 23,403
Marketable Equity Securities carried at fair value		525	414
Residential mortgage servicing rights at fair value		356	336	$ 326	$ 324
Derivative Asset	[1]	106	253
Derivative Liabilities	[1]	171	403
Loans held for sale		282	325
Recurring Fair Value Measurements [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale Securities, Debt Securities		23,085	23,403
Mortgages Held-for-sale, Fair Value Disclosure		282	325
Marketable Equity Securities carried at fair value	[2]	525	414
Residential mortgage servicing rights at fair value		356	336
Derivative Asset		248	394
Derivative Liabilities		396	641
Nonrecurring Fair Value Measurements [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Loans held for sale		7	20
Equity Investments without a Readily Determinable Fair Value	[3]	13	0
Fair Value Foreclosed Property And Other Real Estate And Equipment Nonrecurring Basis		22	33
Level 1 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale Securities, Debt Securities		327	331
Derivative Asset		2	2
Derivative Liabilities		2	2
Loans held for sale		0	0
Level 1 [Member] | Recurring Fair Value Measurements [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale Securities, Debt Securities		327	331
Mortgages Held-for-sale, Fair Value Disclosure		0	0
Marketable Equity Securities carried at fair value	[2]	525	414
Residential mortgage servicing rights at fair value		0	0
Derivative Asset		2	2
Derivative Liabilities		2	2
Level 1 [Member] | Nonrecurring Fair Value Measurements [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Loans held for sale		0	0
Equity Investments without a Readily Determinable Fair Value	[3]	0	0
Fair Value Foreclosed Property And Other Real Estate And Equipment Nonrecurring Basis		0	0
Level 2 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale Securities, Debt Securities		22,753	23,066
Derivative Asset		233	387
Derivative Liabilities		394	639
Loans held for sale		439	328
Level 2 [Member] | Recurring Fair Value Measurements [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale Securities, Debt Securities		22,753	23,066
Mortgages Held-for-sale, Fair Value Disclosure		282	325
Marketable Equity Securities carried at fair value	[2]	0	0
Residential mortgage servicing rights at fair value		0	0
Derivative Asset		233	387
Derivative Liabilities		394	639
Level 2 [Member] | Nonrecurring Fair Value Measurements [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Loans held for sale		0	0
Equity Investments without a Readily Determinable Fair Value	[3]	0	0
Fair Value Foreclosed Property And Other Real Estate And Equipment Nonrecurring Basis		18	24
Level 3 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale Securities, Debt Securities		5	6
Derivative Asset		13	5
Derivative Liabilities		0	0
Loans held for sale		13	20
Level 3 [Member] | Recurring Fair Value Measurements [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale Securities, Debt Securities	[4]	5	6
Mortgages Held-for-sale, Fair Value Disclosure	[4]	0	0
Marketable Equity Securities carried at fair value	[2],[4]	0	0
Residential mortgage servicing rights at fair value	[4]	356	336
Derivative Asset	[4]	13	5
Derivative Liabilities	[4]	0	0
Level 3 [Member] | Nonrecurring Fair Value Measurements [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Loans held for sale	[4]	7	20
Equity Investments without a Readily Determinable Fair Value	[3],[4]	13	0
Fair Value Foreclosed Property And Other Real Estate And Equipment Nonrecurring Basis	[4]	4	9
Interest Rate Swaps [Member] | Recurring Fair Value Measurements [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative Asset		140	314
Derivative Liabilities		307	573
Interest Rate Swaps [Member] | Level 1 [Member] | Recurring Fair Value Measurements [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative Asset		0	0
Derivative Liabilities		0	0
Interest Rate Swaps [Member] | Level 2 [Member] | Recurring Fair Value Measurements [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative Asset		140	314
Derivative Liabilities		307	573
Interest Rate Swaps [Member] | Level 3 [Member] | Recurring Fair Value Measurements [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative Asset	[4]	0	0
Derivative Liabilities	[4]	0	0
Interest Rate Options [Member] | Recurring Fair Value Measurements [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative Asset		39	23
Derivative Liabilities		23	15
Interest Rate Options [Member] | Level 1 [Member] | Recurring Fair Value Measurements [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative Asset		0	0
Derivative Liabilities		0	0
Interest Rate Options [Member] | Level 2 [Member] | Recurring Fair Value Measurements [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative Asset		26	18
Derivative Liabilities		23	15
Interest Rate Options [Member] | Level 3 [Member] | Recurring Fair Value Measurements [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative Asset	[4]	13	5
Derivative Liabilities	[4]	0	0
Interest Rate Futures And Forward Commitments [Member] | Recurring Fair Value Measurements [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative Asset		10	6
Derivative Liabilities		11	5
Interest Rate Futures And Forward Commitments [Member] | Level 1 [Member] | Recurring Fair Value Measurements [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative Asset		0	0
Derivative Liabilities		0	0
Interest Rate Futures And Forward Commitments [Member] | Level 2 [Member] | Recurring Fair Value Measurements [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative Asset		10	6
Derivative Liabilities		11	5
Interest Rate Futures And Forward Commitments [Member] | Level 3 [Member] | Recurring Fair Value Measurements [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative Asset	[4]	0	0
Derivative Liabilities	[4]	0	0
Other Contract [Member] | Recurring Fair Value Measurements [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative Asset		59	51
Derivative Liabilities		55	48
Other Contract [Member] | Level 1 [Member] | Recurring Fair Value Measurements [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative Asset		2	2
Derivative Liabilities		2	2
Other Contract [Member] | Level 2 [Member] | Recurring Fair Value Measurements [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative Asset		57	49
Derivative Liabilities		53	46
Other Contract [Member] | Level 3 [Member] | Recurring Fair Value Measurements [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative Asset	[4]	0	0
Derivative Liabilities	[4]	0	0
US Treasury Securities [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale Securities, Debt Securities		327	331
US Treasury Securities [Member] | Recurring Fair Value Measurements [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale Securities, Debt Securities		327	331
US Treasury Securities [Member] | Level 1 [Member] | Recurring Fair Value Measurements [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale Securities, Debt Securities		327	331
US Treasury Securities [Member] | Level 2 [Member] | Recurring Fair Value Measurements [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale Securities, Debt Securities		0	0
US Treasury Securities [Member] | Level 3 [Member] | Recurring Fair Value Measurements [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale Securities, Debt Securities	[4]	0	0
Federal Agency Securities [Member] | Recurring Fair Value Measurements [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale Securities, Debt Securities		42	28
Federal Agency Securities [Member] | Level 1 [Member] | Recurring Fair Value Measurements [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale Securities, Debt Securities		0	0
Federal Agency Securities [Member] | Level 2 [Member] | Recurring Fair Value Measurements [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale Securities, Debt Securities		42	28
Federal Agency Securities [Member] | Level 3 [Member] | Recurring Fair Value Measurements [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale Securities, Debt Securities	[4]	0	0
Residential Agency [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale Securities, Debt Securities		17,152	17,431
Residential Agency [Member] | Recurring Fair Value Measurements [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale Securities, Debt Securities		17,152	17,431
Residential Agency [Member] | Level 1 [Member] | Recurring Fair Value Measurements [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale Securities, Debt Securities		0	0
Residential Agency [Member] | Level 2 [Member] | Recurring Fair Value Measurements [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale Securities, Debt Securities		17,152	17,431
Residential Agency [Member] | Level 3 [Member] | Recurring Fair Value Measurements [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale Securities, Debt Securities	[4]	0	0
Residential Non-Agency [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale Securities, Debt Securities		2	3
Residential Non-Agency [Member] | Recurring Fair Value Measurements [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale Securities, Debt Securities		2	3
Residential Non-Agency [Member] | Level 1 [Member] | Recurring Fair Value Measurements [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale Securities, Debt Securities		0	0
Residential Non-Agency [Member] | Level 2 [Member] | Recurring Fair Value Measurements [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale Securities, Debt Securities		0	0
Residential Non-Agency [Member] | Level 3 [Member] | Recurring Fair Value Measurements [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale Securities, Debt Securities	[4]	2	3
Commercial Agency [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale Securities, Debt Securities		3,661	3,714
Commercial Agency [Member] | Recurring Fair Value Measurements [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale Securities, Debt Securities		3,661	3,714
Commercial Agency [Member] | Level 1 [Member] | Recurring Fair Value Measurements [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale Securities, Debt Securities		0	0
Commercial Agency [Member] | Level 2 [Member] | Recurring Fair Value Measurements [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale Securities, Debt Securities		3,661	3,714
Commercial Agency [Member] | Level 3 [Member] | Recurring Fair Value Measurements [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale Securities, Debt Securities	[4]	0	0
Commercial Non-Agency [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale Securities, Debt Securities		766	788
Commercial Non-Agency [Member] | Recurring Fair Value Measurements [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale Securities, Debt Securities		766	788
Commercial Non-Agency [Member] | Level 1 [Member] | Recurring Fair Value Measurements [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale Securities, Debt Securities		0	0
Commercial Non-Agency [Member] | Level 2 [Member] | Recurring Fair Value Measurements [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale Securities, Debt Securities		766	788
Commercial Non-Agency [Member] | Level 3 [Member] | Recurring Fair Value Measurements [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale Securities, Debt Securities	[4]	0	0
Corporate and other debt securities [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale Securities, Debt Securities		1,135	1,108
Corporate and other debt securities [Member] | Recurring Fair Value Measurements [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale Securities, Debt Securities		1,135	1,108
Corporate and other debt securities [Member] | Level 1 [Member] | Recurring Fair Value Measurements [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale Securities, Debt Securities		0	0
Corporate and other debt securities [Member] | Level 2 [Member] | Recurring Fair Value Measurements [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale Securities, Debt Securities		1,132	1,105
Corporate and other debt securities [Member] | Level 3 [Member] | Recurring Fair Value Measurements [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale Securities, Debt Securities	[4]	$ 3	$ 3

[1] As of March 31, 2018, financial instruments posted of $49 million were not offset in the consolidated balance sheets. As of December 31, 2017, cash collateral posted of $257 million and financial instruments posted of $50 million were not offset in the consolidated balance sheets.

[2] Marketable equity securities were reclassified from trading account securities and securities available for sale to other earning assets, beginning in the first quarter of 2018, with the adoption of new accounting guidance. Prior periods have been reclassified to conform to current period presentation.

[3] With the adoption of new accounting guidance, effective January 1, 2018, equity investments without a readily determinable fair value are required to be adjusted prospectively to estimated fair value when an observable price transaction for a same or similar investment with the same issuer occurs.

[4] All following disclosures related to Level 3 recurring and non-recurring assets do not include those deemed to be immaterial.

XML

Fair Value Measurements (Rollforward For Assets And Liabilities Measured At Fair Value On A Recurring Basis With Level 3 Significant Unobservable Inputs) (Details) - Residential Mortgage Servicing Rights [Member] - USD ($) $ in Millions		3 Months Ended
		Mar. 31, 2018	Mar. 31, 2017
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Opening balance		$ 336	$ 324
Gain (Loss) Included in Earnings	[1]	12	(6)
Gain (Loss) Included in Other Comprehensive Income (Loss)		0	0
Purchases		8	8
Sales		0	0
Issuances		0	0
Settlements		0	0
Transfers Into Level 3		0	0
Transfers Out Of Level 3		0	0
Closing balance		$ 356	$ 326

[1] Included in mortgage income.

XML

Fair Value Measurements (Schedule Of Fair Value Adjustments Related To Non-Recurring Fair Value Measurements) (Details) - Nonrecurring Fair Value Measurements [Member] - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2018	Mar. 31, 2017
Loans Held For Sale [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets, Fair Value Adjustment	$ (3)	$ (4)
Foreclosed Property And Other Real Estate [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets, Fair Value Adjustment	(5)	(4)
Equity Investments Without a Readily Determinable Fair Value [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets, Fair Value Adjustment	$ 7	$ 0

XML

Fair Value Measurements (Summary Of Quantitative Information About Level 3 Fair Value Measurements) (Details) - Mortgage Servicing Rights [Member] - Discounted Cash Flow [Member] - USD ($) $ in Millions	3 Months Ended		12 Months Ended
	Mar. 31, 2018	[1]	Dec. 31, 2017	[2]
Level 3 [Member]
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Assets, Fair Value Disclosure, Recurring	$ 356		$ 336
Recurring Fair Value Measurements [Member] | Minimum [Member]
Fair Value Inputs [Abstract]
Fair Value Inputs, Prepayment Rate	3.60%		7.90%
Option-Adjusted Spread	7.80%		8.10%
Recurring Fair Value Measurements [Member] | Maximum [Member]
Fair Value Inputs [Abstract]
Fair Value Inputs, Prepayment Rate	28.00%		28.10%
Option-Adjusted Spread	15.00%		15.00%
Recurring Fair Value Measurements [Member] | Weighted Average [Member]
Fair Value Inputs [Abstract]
Fair Value Inputs, Prepayment Rate	9.00%		9.90%
Option-Adjusted Spread	8.40%		8.60%

[1] See Note 5 for additional disclosures related to assumptions used in the fair value calculation for residential mortgage servicing rights.

[2] See Note 7 to the consolidated financial statements of the Annual Report on Form 10-K for the year ended December 31, 2017 for additional disclosures related to assumptions used in the fair value calculation for residential mortgage servicing rights.

XML

Fair Value Measurements (Fair Value Option, Fair Value and Unpaid Principal Balance) (Details) - Mortgage loans held for sale [Member] - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2018	Mar. 31, 2017	Dec. 31, 2017
Fair Value, Option, Quantitative Disclosures [Line Items]
Mortgages Held-for-sale, Fair Value Disclosure	$ 282		$ 325
Fair Value Option Mortgages Held For Sale Aggregate Unpaid Principal	273		314
Aggregate Fair Value Less Aggregate Unpaid Principal	9		$ 11
Net gains (losses) resulting from changes in fair value	$ (3)	$ 4

XML

Fair Value Measurements (Schedule Of Carrying Amounts And Estimated Fair Values Of Financial Instruments) (Details) - USD ($) $ in Millions		Mar. 31, 2018		Dec. 31, 2017
Financial Assets [Abstract]
Held-to-maturity Debt Securities		$ 1,585		$ 1,667
Available-for-sale Securities, Debt Securities		23,085		23,403
Loans held for sale		282		325
Other earning assets		1,640		1,891
Derivative Asset	[1]	106		253
Financial Liabilities [Abstract]
Derivative Liabilities	[1]	171		403
Fair Value Discount On Loan Portfolio Amount		$ 1,200		$ 1,100
Fair value discount on loan portfolio, rate		1.60%		1.40%
Leases, carrying amount excluded		$ 1,100		$ 1,100
Property Subject to or Available for Operating Lease, Net		450		489
Carrying Amount [Member]
Financial Assets [Abstract]
Cash and cash equivalents		3,185		3,981
Held-to-maturity Debt Securities		1,611		1,658
Available-for-sale Securities, Debt Securities		23,085		23,403
Loans held for sale		452		348
Net loans (excluding leases)		77,917	[2],[3]	77,942	[4],[5]
Other earning assets		1,190	[6]	1,402	[7]
Derivative Asset		248		394
Financial Liabilities [Abstract]
Derivative Liabilities		396		641
Deposits		96,990		96,889
Long-term borrowings		7,949		8,132
Loan commitments and letters of credit		77		79
Estimate of Fair Value [Member]
Financial Assets [Abstract]
Cash and cash equivalents		3,185	[8]	3,981	[9]
Held-to-maturity Debt Securities		1,585	[8]	1,667	[9]
Available-for-sale Securities, Debt Securities		23,085	[8]	23,403	[9]
Loans held for sale		452	[8]	348	[9]
Net loans (excluding leases)		76,683	[2],[3],[8]	76,871	[4],[5],[9]
Other earning assets		1,190	[6],[8]	1,402	[7],[9]
Derivative Asset		248	[8]	394	[9]
Financial Liabilities [Abstract]
Derivative Liabilities		396	[8]	641	[9]
Deposits		97,015	[8]	96,927	[9]
Long-term borrowings		8,239	[8]	8,517	[9]
Loan commitments and letters of credit		413	[8]	540	[9]
Level 1 [Member]
Financial Assets [Abstract]
Cash and cash equivalents		3,185		3,981
Held-to-maturity Debt Securities		0		0
Available-for-sale Securities, Debt Securities		327		331
Loans held for sale		0		0
Net loans (excluding leases)		0	[2],[3]	0	[4],[5]
Other earning assets		525	[6]	414	[7]
Derivative Asset		2		2
Financial Liabilities [Abstract]
Derivative Liabilities		2		2
Deposits		0		0
Long-term borrowings		0		0
Loan commitments and letters of credit		0		0
Level 2 [Member]
Financial Assets [Abstract]
Cash and cash equivalents		0		0
Held-to-maturity Debt Securities		1,585		1,667
Available-for-sale Securities, Debt Securities		22,753		23,066
Loans held for sale		439		328
Net loans (excluding leases)		0	[2],[3]	0	[4],[5]
Other earning assets		665	[6]	988	[7]
Derivative Asset		233		387
Financial Liabilities [Abstract]
Derivative Liabilities		394		639
Deposits		97,015		96,927
Long-term borrowings		7,814		7,757
Loan commitments and letters of credit		0		0
Level 3 [Member]
Financial Assets [Abstract]
Cash and cash equivalents		0		0
Held-to-maturity Debt Securities		0		0
Available-for-sale Securities, Debt Securities		5		6
Loans held for sale		13		20
Net loans (excluding leases)		76,683	[2],[3]	76,871	[4],[5]
Other earning assets		0	[6]	0	[7]
Derivative Asset		13		5
Financial Liabilities [Abstract]
Derivative Liabilities		0		0
Deposits		0		0
Long-term borrowings		425		760
Loan commitments and letters of credit		$ 413		$ 540

[1] As of March 31, 2018, financial instruments posted of $49 million were not offset in the consolidated balance sheets. As of December 31, 2017, cash collateral posted of $257 million and financial instruments posted of $50 million were not offset in the consolidated balance sheets.

[2] Excluded from this table is the capital lease carrying amount of $1.1 billion at March 31, 2018.

[3] The estimated fair value of portfolio loans assumes sale of the loans to a third-party financial investor. Accordingly, the value to the Company if the loans were held to maturity is not reflected in the fair value estimate. In the current whole loan market, financial investors are generally requiring a higher rate of return than the return inherent in loans if held to maturity. The fair value discount on the loan portfolio's net carrying amount at March 31, 2018 was $1.2 billion or 1.6 percent.

[4] Excluded from this table is the capital lease carrying amount of $1.1 billion at December 31, 2017.

[5] The estimated fair value of portfolio loans assumes sale of the loans to a third-party financial investor. Accordingly, the value to the Company if the loans were held to maturity is not reflected in the fair value estimate. In the current whole loan market, financial investors are generally requiring a higher rate of return than the return inherent in loans if held to maturity. The fair value discount on the loan portfolio's net carrying amount at December 31, 2017 was $1.1 billion or 1.4 percent.

[6] Excluded from this table is the operating lease carrying amount of $450 million at March 31, 2018.

[7] Excluded from this table is the operating lease carrying amount of $489 million at December 31, 2017.

[8] Estimated fair values are consistent with an exit price concept. The assumptions used to estimate the fair values are intended to approximate those that a market participant would use in a hypothetical orderly transaction. In estimating fair value, the Company maintains a corporate governance program to make adjustments for estimated changes in interest rates, market liquidity and credit spreads in the periods they are deemed to have occurred.

[9] Estimated fair values are consistent with an exit price concept. The assumptions used to estimate the fair values are intended to approximate those that a market participant would use in a hypothetical orderly transaction. In estimating fair value, the Company maintains a corporate governance program to make adjustments for estimated changes in interest rates, market liquidity and credit spreads in the periods they are deemed to have occurred.

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Fair Value Measurements (Narrative) (Details) - USD ($)	Mar. 31, 2018	Dec. 31, 2017
Fair Value Disclosures [Abstract]
Fair Value, Assets, Level 1 to Level 2 Transfers, Amount	$ 0	$ 0

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Business Segment Information (Schedule Of Financial Information By Reportable Segment) (Details) $ in Millions	3 Months Ended
	Mar. 31, 2018 USD ($) segment	Mar. 31, 2017 USD ($)
Segment Reporting Information [Line Items]
Number of reportable segments | segment	3
Non-interest income	$ 507	$ 474
Non-interest expense	884	843
Income from continuing operations before income taxes	542	420
Income tax expense (benefit)	128	127
Corporate Bank [Member]
Segment Reporting Information [Line Items]
Net interest income and other financing income (loss)	340	341
Provision (Credit) for Loan Losses	55	67
Non-interest income	144	123
Non-interest expense	233	214
Income from continuing operations before income taxes	196	183
Income tax expense (benefit)	49	69
Net income	147	114
Average assets	51,037	52,340
Consumer Bank [Member]
Segment Reporting Information [Line Items]
Net interest income and other financing income (loss)	542	518
Provision (Credit) for Loan Losses	76	74
Non-interest income	276	275
Non-interest expense	523	513
Income from continuing operations before income taxes	219	206
Income tax expense (benefit)	55	78
Net income	164	128
Average assets	35,011	35,047
Wealth Management [Member]
Segment Reporting Information [Line Items]
Net interest income and other financing income (loss)	49	46
Provision (Credit) for Loan Losses	4	5
Non-interest income	77	74
Non-interest expense	91	84
Income from continuing operations before income taxes	31	31
Income tax expense (benefit)	8	12
Net income	23	19
Average assets	2,359	2,518
Other [Member]
Segment Reporting Information [Line Items]
Net interest income and other financing income (loss)	(22)	(46)
Provision (Credit) for Loan Losses	(145)	(76)
Non-interest income	10	2
Non-interest expense	37	32
Income from continuing operations before income taxes	96	0
Income tax expense (benefit)	16	(32)
Net income	80	32
Average assets	34,917	34,747
Continuing Operations [Member]
Segment Reporting Information [Line Items]
Net interest income and other financing income (loss)	909	859
Provision (Credit) for Loan Losses	(10)	70
Non-interest income	507	474
Non-interest expense	884	843
Income from continuing operations before income taxes	542	420
Income tax expense (benefit)	128	127
Net income	414	293
Average assets	123,324	124,652
Discontinued Operations [Member]
Segment Reporting Information [Line Items]
Net interest income and other financing income (loss)	0	0
Provision (Credit) for Loan Losses	0	0
Non-interest income	34	36
Non-interest expense	34	23
Income from continuing operations before income taxes	0	13
Income tax expense (benefit)	0	5
Net income	0	8
Average assets	170	158
Consolidated [Member]
Segment Reporting Information [Line Items]
Net interest income and other financing income (loss)	909	859
Provision (Credit) for Loan Losses	(10)	70
Non-interest income	541	510
Non-interest expense	918	866
Income from continuing operations before income taxes	542	433
Income tax expense (benefit)	128	132
Net income	414	301
Average assets	$ 123,494	$ 124,810

XML

Commitments, Contingencies and Guarantees (Credit Risk Of Financial Instruments By Contractual Amounts) (Details) - USD ($) $ in Millions	Mar. 31, 2018	Dec. 31, 2017	Mar. 31, 2017	Dec. 31, 2016
Other Commitments [Line Items]
Unused commitments to extend credit	$ 46,328	$ 45,705
Standby Letters Of Credit Commitment	1,436	1,348
Commercial letters of credit	76	76
Liabilities associated with standby letters of credit	28	26
Assets associated with standby letters of credit	29	28
Reserve for unfunded credit commitments	$ 49	$ 53	$ 70	$ 69

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Commitments, Contingencies and Guarantees (Narrative) (Details) - USD ($) $ in Millions	Mar. 31, 2018	Dec. 31, 2017
Long-term Purchase Commitment [Line Items]
Fannie Mae DUS Servicing Portfolio, Amount	$ 2,800	$ 2,900
Maximum Quantifiable Fannie Mae DUS Loss Share Guarantee	915	923
Estimated Fair Value of the Fannie Mae DUS Loss Share Guarantee	$ 4	$ 4

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Revenue Recognition (Non-Interest Income Disaggregated by Major Product Category)(Details) - USD ($) $ in Millions		3 Months Ended
		Mar. 31, 2018	Mar. 31, 2017	[1]
Corporate Bank [Member]
Disaggregation of Revenue [Line Items]
Revenue		$ 72	$ 60
Corporate Bank [Member] | Service charges on deposit accounts [Member]
Disaggregation of Revenue [Line Items]
Revenue		37	36
Corporate Bank [Member] | Card and ATM fees [Member]
Disaggregation of Revenue [Line Items]
Revenue		12	12
Corporate Bank [Member] | Investment management and trust fee income [Member]
Disaggregation of Revenue [Line Items]
Revenue		0	0
Corporate Bank [Member] | Capital markets fee income and other [Member]
Disaggregation of Revenue [Line Items]
Revenue		18	9
Corporate Bank [Member] | Mortgage Income [Member]
Disaggregation of Revenue [Line Items]
Revenue		0	0
Corporate Bank [Member] | Bank-owned life insurance [Member]
Disaggregation of Revenue [Line Items]
Revenue		0	0
Corporate Bank [Member] | Commercial credit fee income [Member]
Disaggregation of Revenue [Line Items]
Revenue		0	0
Corporate Bank [Member] | Investment services fee income [Member]
Disaggregation of Revenue [Line Items]
Revenue		0	0
Corporate Bank [Member] | Market value adjustments on employee benefit assets [Member]
Disaggregation of Revenue [Line Items]
Revenue		0	0
Corporate Bank [Member] | Insurance commissions and fees [Member]
Disaggregation of Revenue [Line Items]
Revenue		0	0
Corporate Bank [Member] | Other miscellaneous income [Member]
Disaggregation of Revenue [Line Items]
Revenue		5	3
Consumer Bank [Member]
Disaggregation of Revenue [Line Items]
Revenue		236	231
Consumer Bank [Member] | Service charges on deposit accounts [Member]
Disaggregation of Revenue [Line Items]
Revenue		131	127
Consumer Bank [Member] | Card and ATM fees [Member]
Disaggregation of Revenue [Line Items]
Revenue		96	93
Consumer Bank [Member] | Investment management and trust fee income [Member]
Disaggregation of Revenue [Line Items]
Revenue		0	0
Consumer Bank [Member] | Capital markets fee income and other [Member]
Disaggregation of Revenue [Line Items]
Revenue		0	0
Consumer Bank [Member] | Mortgage Income [Member]
Disaggregation of Revenue [Line Items]
Revenue		0	0
Consumer Bank [Member] | Bank-owned life insurance [Member]
Disaggregation of Revenue [Line Items]
Revenue		0	0
Consumer Bank [Member] | Commercial credit fee income [Member]
Disaggregation of Revenue [Line Items]
Revenue		0	0
Consumer Bank [Member] | Investment services fee income [Member]
Disaggregation of Revenue [Line Items]
Revenue		0	0
Consumer Bank [Member] | Market value adjustments on employee benefit assets [Member]
Disaggregation of Revenue [Line Items]
Revenue		0	0
Consumer Bank [Member] | Insurance commissions and fees [Member]
Disaggregation of Revenue [Line Items]
Revenue		0	0
Consumer Bank [Member] | Other miscellaneous income [Member]
Disaggregation of Revenue [Line Items]
Revenue		9	11
Wealth Management [Member]
Disaggregation of Revenue [Line Items]
Revenue		77	74
Wealth Management [Member] | Service charges on deposit accounts [Member]
Disaggregation of Revenue [Line Items]
Revenue		1	1
Wealth Management [Member] | Card and ATM fees [Member]
Disaggregation of Revenue [Line Items]
Revenue		0	0
Wealth Management [Member] | Investment management and trust fee income [Member]
Disaggregation of Revenue [Line Items]
Revenue		58	56
Wealth Management [Member] | Capital markets fee income and other [Member]
Disaggregation of Revenue [Line Items]
Revenue		0	0
Wealth Management [Member] | Mortgage Income [Member]
Disaggregation of Revenue [Line Items]
Revenue		0	0
Wealth Management [Member] | Bank-owned life insurance [Member]
Disaggregation of Revenue [Line Items]
Revenue		0	0
Wealth Management [Member] | Commercial credit fee income [Member]
Disaggregation of Revenue [Line Items]
Revenue		0	0
Wealth Management [Member] | Investment services fee income [Member]
Disaggregation of Revenue [Line Items]
Revenue		17	16
Wealth Management [Member] | Market value adjustments on employee benefit assets [Member]
Disaggregation of Revenue [Line Items]
Revenue		0	0
Wealth Management [Member] | Insurance commissions and fees [Member]
Disaggregation of Revenue [Line Items]
Revenue		0	0
Wealth Management [Member] | Other miscellaneous income [Member]
Disaggregation of Revenue [Line Items]
Revenue		1	1
Other Segment Revenue [Member]
Disaggregation of Revenue [Line Items]
Revenue		1	2
Other Segment Revenue [Member] | Service charges on deposit accounts [Member]
Disaggregation of Revenue [Line Items]
Revenue		1	2
Other Segment Revenue [Member] | Card and ATM fees [Member]
Disaggregation of Revenue [Line Items]
Revenue		0	0
Other Segment Revenue [Member] | Investment management and trust fee income [Member]
Disaggregation of Revenue [Line Items]
Revenue		0	0
Other Segment Revenue [Member] | Capital markets fee income and other [Member]
Disaggregation of Revenue [Line Items]
Revenue		0	0
Other Segment Revenue [Member] | Mortgage Income [Member]
Disaggregation of Revenue [Line Items]
Revenue		0	0
Other Segment Revenue [Member] | Bank-owned life insurance [Member]
Disaggregation of Revenue [Line Items]
Revenue		0	0
Other Segment Revenue [Member] | Commercial credit fee income [Member]
Disaggregation of Revenue [Line Items]
Revenue		0	0
Other Segment Revenue [Member] | Investment services fee income [Member]
Disaggregation of Revenue [Line Items]
Revenue		0	0
Other Segment Revenue [Member] | Market value adjustments on employee benefit assets [Member]
Disaggregation of Revenue [Line Items]
Revenue		0	0
Other Segment Revenue [Member] | Insurance commissions and fees [Member]
Disaggregation of Revenue [Line Items]
Revenue		0	0
Other Segment Revenue [Member] | Other miscellaneous income [Member]
Disaggregation of Revenue [Line Items]
Revenue		0	0
Other Revenue - Not Impacted [Member]
Disaggregation of Revenue [Line Items]
Revenue	[2]	121	107
Other Revenue - Not Impacted [Member] | Service charges on deposit accounts [Member]
Disaggregation of Revenue [Line Items]
Revenue	[2]	1	2
Other Revenue - Not Impacted [Member] | Card and ATM fees [Member]
Disaggregation of Revenue [Line Items]
Revenue	[2]	(4)	(1)
Other Revenue - Not Impacted [Member] | Investment management and trust fee income [Member]
Disaggregation of Revenue [Line Items]
Revenue	[2]	0	0
Other Revenue - Not Impacted [Member] | Capital markets fee income and other [Member]
Disaggregation of Revenue [Line Items]
Revenue	[2]	32	23
Other Revenue - Not Impacted [Member] | Mortgage Income [Member]
Disaggregation of Revenue [Line Items]
Revenue	[2]	38	41
Other Revenue - Not Impacted [Member] | Bank-owned life insurance [Member]
Disaggregation of Revenue [Line Items]
Revenue	[2]	17	19
Other Revenue - Not Impacted [Member] | Commercial credit fee income [Member]
Disaggregation of Revenue [Line Items]
Revenue	[2]	17	18
Other Revenue - Not Impacted [Member] | Investment services fee income [Member]
Disaggregation of Revenue [Line Items]
Revenue	[2]	0	0
Other Revenue - Not Impacted [Member] | Market value adjustments on employee benefit assets [Member]
Disaggregation of Revenue [Line Items]
Revenue	[2]	(1)	5
Other Revenue - Not Impacted [Member] | Insurance commissions and fees [Member]
Disaggregation of Revenue [Line Items]
Revenue	[2]	0	0
Other Revenue - Not Impacted [Member] | Other miscellaneous income [Member]
Disaggregation of Revenue [Line Items]
Revenue	[2]	21	0
Continuing Operations [Member]
Disaggregation of Revenue [Line Items]
Revenue		507	474
Continuing Operations [Member] | Service charges on deposit accounts [Member]
Disaggregation of Revenue [Line Items]
Revenue		171	168
Continuing Operations [Member] | Card and ATM fees [Member]
Disaggregation of Revenue [Line Items]
Revenue		104	104
Continuing Operations [Member] | Investment management and trust fee income [Member]
Disaggregation of Revenue [Line Items]
Revenue		58	56
Continuing Operations [Member] | Capital markets fee income and other [Member]
Disaggregation of Revenue [Line Items]
Revenue		50	32
Continuing Operations [Member] | Mortgage Income [Member]
Disaggregation of Revenue [Line Items]
Revenue		38	41
Continuing Operations [Member] | Bank-owned life insurance [Member]
Disaggregation of Revenue [Line Items]
Revenue		17	19
Continuing Operations [Member] | Commercial credit fee income [Member]
Disaggregation of Revenue [Line Items]
Revenue		17	18
Continuing Operations [Member] | Investment services fee income [Member]
Disaggregation of Revenue [Line Items]
Revenue		17	16
Continuing Operations [Member] | Market value adjustments on employee benefit assets [Member]
Disaggregation of Revenue [Line Items]
Revenue		(1)	5
Continuing Operations [Member] | Insurance commissions and fees [Member]
Disaggregation of Revenue [Line Items]
Revenue		0	0
Continuing Operations [Member] | Other miscellaneous income [Member]
Disaggregation of Revenue [Line Items]
Revenue		36	15
Discontinued Operations [Member]
Disaggregation of Revenue [Line Items]
Revenue		34	36
Discontinued Operations [Member] | Service charges on deposit accounts [Member]
Disaggregation of Revenue [Line Items]
Revenue		0	0
Discontinued Operations [Member] | Card and ATM fees [Member]
Disaggregation of Revenue [Line Items]
Revenue		0	0
Discontinued Operations [Member] | Investment management and trust fee income [Member]
Disaggregation of Revenue [Line Items]
Revenue		0	0
Discontinued Operations [Member] | Capital markets fee income and other [Member]
Disaggregation of Revenue [Line Items]
Revenue		0	0
Discontinued Operations [Member] | Mortgage Income [Member]
Disaggregation of Revenue [Line Items]
Revenue		0	0
Discontinued Operations [Member] | Bank-owned life insurance [Member]
Disaggregation of Revenue [Line Items]
Revenue		0	0
Discontinued Operations [Member] | Commercial credit fee income [Member]
Disaggregation of Revenue [Line Items]
Revenue		0	0
Discontinued Operations [Member] | Investment services fee income [Member]
Disaggregation of Revenue [Line Items]
Revenue		0	0
Discontinued Operations [Member] | Market value adjustments on employee benefit assets [Member]
Disaggregation of Revenue [Line Items]
Revenue		0	0
Discontinued Operations [Member] | Insurance commissions and fees [Member]
Disaggregation of Revenue [Line Items]
Revenue		34	36
Discontinued Operations [Member] | Other miscellaneous income [Member]
Disaggregation of Revenue [Line Items]
Revenue		$ 0	$ 0

[1] Prior period amounts have not been adjusted under the modified retrospective method.

[2] This revenue is not impacted by the new accounting guidance and continues to be recognized when earned in accordance with the Company's existing revenue recognition policy.

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Recent Accounting Pronouncements (Narrative) (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2018	Dec. 31, 2017
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Non-Interest Income Within Scope of New Standard	$ 420
Maximum [Member]
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Operating Lease, Right-of-Use Asset		$ 600
Minimum [Member]
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Operating Lease, Right-of-Use Asset		$ 400

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Subsequent Event (Narrative) (Details) - Regions Insurance Group Inc. [Member] - Subsequent Event [Member] $ in Millions	Apr. 04, 2018 USD ($)
Subsequent Event [Line Items]
Discontinued Operation, Gain (Loss) on Disposal of Discontinued Operation, Net of Tax	$ 200
Common Equity Tier One Capital	$ 300