Regions Financial (RF) 10-Q 4 Nov 16 2016 Q3 Quarterly report Financial data

Document and Entity Information

Document and Entity Information - shares	9 Months Ended
	Sep. 30, 2016	Nov. 02, 2016
Document Entity Information [Abstract]
Document Type	10-Q
Amendment Flag	false
Document Period End Date	Sep. 30, 2016
Document Fiscal Year Focus	2,016
Document Fiscal Period Focus	Q3
Trading Symbol	RF
Entity Registrant Name	REGIONS FINANCIAL CORP
Entity Central Index Key	1,281,761
Current Fiscal Year End Date	--12-31
Entity Filer Category	Large Accelerated Filer
Entity Common Stock, Shares Outstanding		1,230,974,878

CONSOLIDATED BALANCE SHEETS

CONSOLIDATED BALANCE SHEETS - USD ($) $ in Millions	Sep. 30, 2016	Dec. 31, 2015
Assets
Cash and due from banks	$ 1,928	$ 1,382
Interest-bearing deposits in other banks	2,310	3,932
Trading account securities	120	143
Held-to-maturity Securities	1,431	1,946
Securities available for sale	23,859	22,710
Loans held for sale	571	448
Loans, net of unearned income	80,883	81,162
Allowance for loan losses	(1,126)	(1,106)
Net loans	79,757	80,056
Other earning assets	1,505	1,652
Premises and equipment, net	2,075	2,152
Interest receivable	305	319
Goodwill	4,882	4,878
Residential mortgage servicing rights at fair value	238	252
Other identifiable intangible assets	228	259
Other assets	5,968	5,921
Total assets	125,177	126,050
Deposits:
Non-interest-bearing	36,321	34,862
Interest-bearing	62,968	63,568
Total deposits	99,289	98,430
Borrowed funds:
Other short-term borrowings	0	10
Total short-term borrowings	0	10
Long-term borrowings	6,054	8,349
Total borrowed funds	6,054	8,359
Other liabilities	2,469	2,417
Total liabilities	107,812	109,206
Stockholders’ equity:
Preferred stock	820	820
Common stock	13	13
Additional paid-in capital	17,339	17,883
Retained earnings (deficit)	465	(115)
Treasury stock, at cost	(1,377)	(1,377)
Accumulated other comprehensive income (loss), net	105	(380)
Total stockholders’ equity	17,365	16,844
Total liabilities and stockholders’ equity	$ 125,177	$ 126,050

CONSOLIDATED BALANCE SHEETS (Pa

CONSOLIDATED BALANCE SHEETS (Parenthetical) - USD ($) $ in Millions	Sep. 30, 2016	Dec. 31, 2015
Securities held to maturity, estimated fair value	$ 1,485	$ 1,969
Loans held for sale, at fair value	$ 549	$ 353
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	1,277,600,517	1,338,591,703
Treasury Stock, Shares	41,259,320	41,261,018
Preferred Stock, Shares Authorized	10,000,000	10,000,000
Preferred Stock, Par Value Per Share (in dollars per share)	$ 1	$ 1
Noncumulative Preferred Stock [Member]
Preferred Stock, liquidation preference per share (in dollars per share)	$ 1,000	$ 1,000
Preferred Stock, shares issued	1,000,000	1,000,000

CONSOLIDATED STATEMENTS OF INCO

CONSOLIDATED STATEMENTS OF INCOME - USD ($) shares in Millions, $ in Millions		3 Months Ended		9 Months Ended
		Sep. 30, 2016	Sep. 30, 2015	Sep. 30, 2016	Sep. 30, 2015
Interest income, including other financing income on:
Loans, including fees		$ 763	$ 748	$ 2,293	$ 2,201
Securities - taxable		135	137	427	423
Loans held for sale		4	5	11	12
Trading account securities		0	0	4	4
Other earning assets		9	11	27	30
Operating lease assets		31	0	95	0
Total interest income, including other financing income		942	901	2,857	2,670
Interest expense on:
Deposits		31	27	86	82
Short-term Borrowings		0	0	0	1
Long-term borrowings		51	38	148	116
Total interest expense		82	65	234	199
Depreciation expense on operating lease assets		25	0	78	0
Total interest expense and depreciation expense on operating lease assets		107	65	312	199
Net interest income and other financing income		835	836	2,545	2,471
Provision for loan losses		29	60	214	172
Net interest income and other financing income after provision for loan losses		806	776	2,331	2,299
Non-interest income:
Service charges on deposit accounts		166	167	491	496
Card and ATM fees		105	93	299	268
Mortgage income		46	39	130	125
Securities gains, net		0	7	1	18
Other		282	191	710	650
Total non-interest income		599	497	1,631	1,557
Non-interest expense:
Salaries and employee benefits		486	470	1,441	1,405
Net occupancy expense		87	90	259	270
Furniture and equipment expense		80	77	237	224
Other		281	258	781	835
Total non-interest expense		934	895	2,718	2,734
Income from continuing operations before income taxes		471	378	1,244	1,122
Income tax expense		152	116	380	335
Income from continuing operations		319	262	864	787
Discontinued operations:
Income (loss) from discontinued operations before income taxes		2	(6)	7	(16)
Income tax expense (benefit)		1	(2)	3	(6)
Income (loss) from discontinued operations, net of tax		1	(4)	4	(10)
Net income		320	258	868	777
Net income from continuing operations available to common shareholders		303	246	816	739
Net income available to common shareholders		$ 304	$ 242	$ 820	$ 729
Weighted-average number of shares outstanding:
Basic (in shares)		1,246	1,319	1,266	1,333
Diluted (in shares)		1,252	1,326	1,270	1,343
Earnings per common share from continuing operations:
Basic (in dollars per share)	[1]	$ 0.24	$ 0.19	$ 0.64	$ 0.55
Diluted (in dollars per share)	[1]	0.24	0.19	0.64	0.55
Earnings per common share:
Basic (in dollars per share)	[1]	0.24	0.18	0.65	0.55
Diluted (in dollars per share)	[1]	0.24	0.18	0.65	0.54
Cash dividends declared per common share (in dollars per share)		$ 0.065	$ 0.06	$ 0.19	$ 0.17
[1]	Certain per share amounts may not appear to reconcile due to rounding.

CONSOLIDATED STATEMENTS OF COMP

CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2016	Sep. 30, 2015	Sep. 30, 2016	Sep. 30, 2015
Statement of Comprehensive Income [Abstract]
Net income	$ 320	$ 258	$ 868	$ 777
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	0	0
Less: Reclassification Adjustments for Amortization of Unrealized Losses on Securities Transferred to Held to Maturity, Net of Tax	(5)	(2)	(12)	(6)
Net change in unrealized losses on securities transferred to held to maturity, net of tax	5	2	12	6
Unrealized gains (losses) on securities available for sale:
Unrealized holding gains (losses) arising during the period on securities available for sale (net of tax)	(13)	47	295	(25)
Less: reclassification adjustments for securities gains (losses) realized in net income (net of tax)	0	5	1	12
Net change in unrealized gains (losses) on securities available for sale, net of tax	(13)	42	294	(37)
Unrealized gains (losses) on derivative instruments designated as cash flow hedges:
Unrealized holding gains (losses) on derivatives arising during the period (net of tax)	(18)	121	231	175
Other Comprehensive Income (Loss), Reclassification Adjustment from AOCI on Derivatives, Net of Tax	22	25	68	67
Net change in unrealized gains (losses) on derivative instruments, net of tax	(40)	96	163	108
Defined benefit pension plans and other post employment benefits:
Net actuarial gains (losses) arising during the period (net of tax)	(1)	(1)	(1)	(2)
Less: reclassification adjustments for amortization of actuarial loss and prior service cost realized in net income (net of tax)	(6)	(9)	(17)	(24)
Net change from defined benefit pension plans and other post employment benefits, net of tax	5	8	16	22
Other comprehensive income (loss), net of tax	(43)	148	485	99
Comprehensive income	$ 277	$ 406	$ 1,353	$ 876

CONSOLIDATED STATEMENTS OF COM6

CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (Parenthetical) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2016	Sep. 30, 2015	Sep. 30, 2016	Sep. 30, 2015
Statement of Comprehensive Income [Abstract]
Unrealized losses on securities transferred to held to maturity during the period, tax	$ 0	$ 0	$ 0	$ 0
Amortization of unrealized losses on securities transferred to held to maturity, tax	(4)	(1)	(8)	(4)
Unrealized holding gains (losses) on available for sale securities, tax	(7)	28	180	(17)
Reclassification adjustments for securities gains (losses) realized in net income, tax	0	2	0	6
Unrealized holding gains (losses) on derivatives, tax	(12)	75	141	107
Reclassification adjustments for derivative gains (losses) realized in net income, tax	13	16	41	41
Net actuarial gains and losses arising during the period, tax	0	0	1	0
Reclassification adjustments for amortization of actuarial loss and prior service cost realized in net income, and other, tax	$ (3)	$ (4)	$ (9)	$ (13)

CONSOLIDATED STATEMENTS OF CHAN

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, 2014		1	1,354
Beginning Balance at Dec. 31, 2014	$ 16,873	$ 884	$ 14	$ 18,767	$ (1,177)	$ (1,377)	$ (238)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	777				777
Amortization of unrealized losses on securities transferred to held to maturity, net of tax	6						6
Net change in unrealized gains and losses on securities available for sale, net of tax and reclassification adjustment	(37)						(37)
Net change in unrealized gains and losses on derivative instruments, net of tax and reclassification adjustment	108						108
Net change from employee benefit plans, net of tax	22						22
Cash dividends declared	(226)			(226)
Preferred stock dividends	(48)	$ (48)
Impact of share repurchase, shares			(55)
Impact of share repurchase, value	(545)		$ (1)	(544)
Impact of stock transaction under compensation plans, net, shares			5
Impact of stock transaction under compensation plans, net	22			22
Ending Balance Outstanding (in shares) at Sep. 30, 2015		1	1,304
Ending Balance at Sep. 30, 2015	16,952	$ 836	$ 13	18,019	(400)	(1,377)	(139)
Beginning Balance Outstanding (in shares) at Dec. 31, 2015		1	1,297
Beginning Balance at Dec. 31, 2015	16,844	$ 820	$ 13	17,883	(115)	(1,377)	(380)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	868				868
Amortization of unrealized losses on securities transferred to held to maturity, net of tax	12						12
Net change in unrealized gains and losses on securities available for sale, net of tax and reclassification adjustment	294						294
Net change in unrealized gains and losses on derivative instruments, net of tax and reclassification adjustment	163						163
Net change from employee benefit plans, net of tax	16						16
Cash dividends declared	(240)				(240)
Preferred stock dividends	(48)				(48)
Impact of share repurchase, shares			(65)
Impact of share repurchase, value	(569)			(569)
Impact of stock transaction under compensation plans, net, shares			4
Impact of stock transaction under compensation plans, net	25			25
Ending Balance Outstanding (in shares) at Sep. 30, 2016		1	1,236
Ending Balance at Sep. 30, 2016	$ 17,365	$ 820	$ 13	$ 17,339	$ 465	$ (1,377)	$ 105

CONSOLIDATED STATEMENTS OF CHA8

CONSOLIDATED STATEMENTS OF CHANGES IN STOCKHOLDERS' EQUITY (Parenthetical) - $ / shares	3 Months Ended						9 Months Ended
	Sep. 30, 2016	Jun. 30, 2016	Mar. 31, 2016	Sep. 30, 2015	Jun. 30, 2015	Mar. 31, 2015	Sep. 30, 2016	Sep. 30, 2015
Statement of Stockholders' Equity [Abstract]
Cash dividend declared (in dollars per share)	$ 0.065	$ 0.065	$ 0.06	$ 0.06	$ 0.06	$ 0.05	$ 0.19	$ 0.17

CONSOLIDATED STATEMENTS OF CASH

CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Millions	9 Months Ended
	Sep. 30, 2016	Sep. 30, 2015
Operating activities:
Net income	$ 868	$ 777
Adjustments to reconcile net income to net cash from operating activities:
Provision for loan losses	214	172
Depreciation, amortization and accretion, net	425	384
Securities (gains) losses, net	(1)	(18)
Deferred income tax expense	18	68
Originations and purchases of loans held for sale	(2,767)	(1,931)
Proceeds from sales of loans held for sale	2,711	2,087
(Gain) loss on sale of loans, net	(95)	(70)
(Gain) loss on early extinguishment of debt	14	43
Net change in operating assets and liabilities:
Trading account securities	23	0
Other earning assets	69	(158)
Interest receivable and other assets	28	116
Other liabilities	157	(95)
Other	76	36
Net cash from operating activities	1,740	1,411
Investing activities:
Proceeds from maturities of securities held to maturity	522	174
Proceeds from sales of securities available for sale	1,873	1,142
Proceeds from maturities of securities available for sale	3,325	2,958
Purchases of securities available for sale	(6,108)	(4,169)
Proceeds from sales of loans	86	59
Purchases of loans	(779)	(857)
Purchases of mortgage servicing rights	(35)	(4)
Net change in loans	720	(3,291)
Net purchases of other assets	(107)	(193)
Net cash from investing activities	(503)	(4,181)
Financing activities:
Net change in deposits	859	2,978
Net change in short-term borrowings	(10)	(2,253)
Proceeds from long-term borrowings	1,607	4,997
Payments on long-term borrowings	(3,910)	(1,142)
Cash dividends on common stock	(236)	(226)
Cash dividends on preferred stock	(48)	(48)
Repurchase of common stock	(569)	(544)
Other	(6)	12
Net cash from financing activities	(2,313)	3,774
Net change in cash and cash equivalents	(1,076)	1,004
Cash and cash equivalents at beginning of year	5,314	4,004
Cash and cash equivalents at end of period	$ 4,238	$ 5,008

Basis of Presentation

Basis of Presentation	9 Months Ended
	Sep. 30, 2016
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, 2015 . Regions has evaluated all subsequent events for potential recognition and disclosure through the filing date of this Form 10-Q. On January 11, 2012, Regions entered into an agreement to sell Morgan Keegan and related affiliates. The transaction closed on April 2, 2012. See Note 2 and Note 14 for further details. Results of operations for the 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, 2015 . During the fourth quarter of 2015, Regions reclassified its investments in FRB and FHLB stock from securities available for sale to other earning assets on its consolidated balance sheets. This reclassification has been made for all periods presented. Certain other prior period amounts have also been reclassified to conform to the current period presentation. These reclassifications are immaterial and have no effect on net income, comprehensive income, total assets, or total stockholders’ equity as previously reported.

Discontinued Operations

Discontinued Operations	9 Months Ended
	Sep. 30, 2016
Discontinued Operations and Disposal Groups [Abstract]
Discontinued Operations	DISCONTINUED OPERATIONS 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 14 for related disclosure. The following table represents the condensed results of operations for discontinued operations: Three Months Ended September 30 Nine Months Ended September 30 2016 2015 2016 2015 (In millions, except per share data) Non-interest expense: Professional and legal expenses/(recoveries) $ (2 ) $ 7 $ (8 ) $ 16 Other — (1 ) 1 — Total non-interest expense (2 ) 6 (7 ) 16 Income (loss) from discontinued operations before income taxes 2 (6 ) 7 (16 ) Income tax expense (benefit) 1 (2 ) 3 (6 ) Income (loss) from discontinued operations, net of tax $ 1 $ (4 ) $ 4 $ (10 ) Earnings (loss) per common share from discontinued operations: Basic $ 0.00 $ (0.00 ) $ 0.00 $ (0.01 ) Diluted $ 0.00 $ (0.00 ) $ 0.00 $ (0.01 )

Securities

Securities	9 Months Ended
	Sep. 30, 2016
Investments, Debt and Equity Securities [Abstract]
Securities	SECURITIES The amortized cost, gross unrealized gains and losses, and estimated fair value of securities held to maturity and securities available for sale are as follows: September 30, 2016 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) Securities held to maturity: Mortgage-backed securities: Residential agency $ 1,316 — (52 ) 1,264 53 — $ 1,317 Commercial agency 171 — (4 ) 167 1 — 168 $ 1,487 $ — $ (56 ) $ 1,431 $ 54 $ — $ 1,485 Securities available for sale: U.S. Treasury securities $ 237 $ 5 $ — $ 242 $ 242 Federal agency securities 37 1 — 38 38 Mortgage-backed securities: Residential agency 17,189 328 (11 ) 17,506 17,506 Residential non-agency 4 1 — 5 5 Commercial agency 3,333 81 (1 ) 3,413 3,413 Commercial non-agency 1,125 19 (3 ) 1,141 1,141 Corporate and other debt securities 1,304 47 (17 ) 1,334 1,334 Equity securities 170 10 — 180 180 $ 23,399 $ 492 $ (32 ) $ 23,859 $ 23,859 December 31, 2015 Recognized in OCI (1) Not Recognized in OCI Amortized Gross Unrealized Gains Gross Unrealized Losses Carrying Value Gross Gross Estimated (In millions) Securities held to maturity: U.S. Treasury securities $ 1 $ — $ — $ 1 $ — $ — $ 1 Federal agency securities 350 — (10 ) 340 9 — 349 Mortgage-backed securities: Residential agency 1,490 — (61 ) 1,429 18 (2 ) 1,445 Commercial agency 181 — (5 ) 176 — (2 ) 174 $ 2,022 $ — $ (76 ) $ 1,946 $ 27 $ (4 ) $ 1,969 Securities available for sale: U.S. Treasury securities $ 228 $ 1 $ (1 ) $ 228 $ 228 Federal agency securities 219 — (1 ) 218 218 Obligations of states and political subdivisions 1 — — 1 1 Mortgage-backed securities: Residential agency 16,003 149 (90 ) 16,062 16,062 Residential non-agency 5 — — 5 5 Commercial agency 3,033 10 (25 ) 3,018 3,018 Commercial non-agency 1,245 3 (17 ) 1,231 1,231 Corporate and other debt securities 1,718 12 (63 ) 1,667 1,667 Equity securities 272 10 (2 ) 280 280 $ 22,724 $ 185 $ (199 ) $ 22,710 $ 22,710 _________ (1) The gross unrealized losses recognized in other comprehensive income (OCI) on held to maturity securities resulted from a transfer of available for sale securities to held to maturity in the second quarter of 2013. Securities with carrying values of $10.9 billion and $11.9 billion at September 30, 2016 and December 31, 2015 , respectively, were pledged to secure public funds, trust deposits and certain borrowing arrangements. Included within total pledged securities is approximately $51 million and $50 million of encumbered U.S. Treasury securities at September 30, 2016 and December 31, 2015 , respectively. The amortized cost and estimated fair value of securities available for sale and securities held to maturity at September 30, 2016 , 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) Securities held to maturity: Mortgage-backed securities: Residential agency $ 1,316 $ 1,317 Commercial agency 171 168 $ 1,487 $ 1,485 Securities available for sale: Due in one year or less $ 52 $ 52 Due after one year through five years 463 475 Due after five years through ten years 808 836 Due after ten years 255 251 Mortgage-backed securities: Residential agency 17,189 17,506 Residential non-agency 4 5 Commercial agency 3,333 3,413 Commercial non-agency 1,125 1,141 Equity securities 170 180 $ 23,399 $ 23,859 The following tables present gross unrealized losses and the related estimated fair value of securities available for sale and held to maturity at September 30, 2016 and December 31, 2015 . For 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. September 30, 2016 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) Securities held to maturity: Mortgage-backed securities: Residential agency $ — $ — $ 388 $ (4 ) $ 388 $ (4 ) Commercial agency — — 169 (3 ) 169 (3 ) $ — $ — $ 557 $ (7 ) $ 557 $ (7 ) Securities available for sale: U.S. Treasury securities $ 4 $ — $ 2 $ — $ 6 $ — Federal agency securities — — 2 — 2 — Mortgage-backed securities: Residential agency 1,491 (4 ) 604 (7 ) 2,095 (11 ) Residential non-agency 3 — — — 3 — Commercial agency 282 (1 ) 46 — 328 (1 ) Commercial non-agency 94 (1 ) 245 (2 ) 339 (3 ) All other securities 23 — 253 (17 ) 276 (17 ) $ 1,897 $ (6 ) $ 1,152 $ (26 ) $ 3,049 $ (32 ) December 31, 2015 Less Than Twelve Months Twelve Months or More Total Estimated Gross Estimated Gross Estimated Gross (In millions) Securities held to maturity: Federal agency securities $ 198 $ (1 ) $ — $ — $ 198 $ (1 ) Mortgage-backed securities: Residential agency 322 (7 ) 1,121 (38 ) 1,443 (45 ) Commercial agency — — 174 (7 ) 174 (7 ) $ 520 $ (8 ) $ 1,295 $ (45 ) $ 1,815 $ (53 ) Securities available for sale: U.S. Treasury securities $ 59 $ (1 ) $ 8 $ — $ 67 $ (1 ) Federal agency securities 74 — 7 — 81 — Mortgage-backed securities: Residential agency 8,037 (73 ) 791 (17 ) 8,828 (90 ) Residential non-agency 3 — — — 3 — Commercial agency 1,695 (20 ) 273 (5 ) 1,968 (25 ) Commercial non-agency 684 (12 ) 264 (6 ) 948 (18 ) All other securities 805 (36 ) 307 (29 ) 1,112 (65 ) $ 11,357 $ (142 ) $ 1,650 $ (57 ) $ 13,007 $ (199 ) The number of individual positions in an unrealized loss position in the tables above decrease d from 1,081 at December 31, 2015 to 520 at September 30, 2016 . The decrease in the number of securities and the total amount of unrealized losses from year-end 2015 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 other-than-temporary impairment 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 other-than-temporary impairments, management did identify a limited number of positions where an other-than-temporary impairment was believed to exist as of September 30, 2016 . Such impairments were related to available for sale equity securities with current market values below the highest traded price in the last six months. For the nine months ended September 30, 2016 , such impairments totaled $1 million , and have been reflected as a reduction of net securities gains (losses) on the consolidated statements of income. Gross realized gains and gross realized losses on sales of securities available for sale, as well as other-than-temporary impairment losses, are shown in the table below. The cost of securities sold is based on the specific identification method. Three Months Ended September 30 Nine Months Ended September 30 2016 2015 2016 2015 (In millions) Gross realized gains $ 1 $ 15 $ 30 $ 29 Gross realized losses (1 ) (2 ) (28 ) (5 ) OTTI — (6 ) (1 ) (6 ) Securities gains (losses), net $ — $ 7 $ 1 $ 18

Loans and the Allowance for Cre

Loans and the Allowance for Credit Losses	9 Months Ended
	Sep. 30, 2016
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: September 30, 2016 December 31, 2015 (In millions, net of unearned income) Commercial and industrial $ 35,388 $ 35,821 Commercial real estate mortgage—owner-occupied 7,007 7,538 Commercial real estate construction—owner-occupied 349 423 Total commercial 42,744 43,782 Commercial investor real estate mortgage 4,306 4,255 Commercial investor real estate construction 2,458 2,692 Total investor real estate 6,764 6,947 Residential first mortgage 13,402 12,811 Home equity 10,749 10,978 Indirect—vehicles 4,076 3,984 Indirect—other consumer 838 545 Consumer credit card 1,123 1,075 Other consumer 1,187 1,040 Total consumer 31,375 30,433 $ 80,883 $ 81,162 During the three months ended September 30, 2016 and 2015 , Regions purchased approximately $200 million and $310 million , respectively, in indirect-vehicles and indirect-other consumer loans from third parties. During the nine months ended September 30, 2016 and 2015, the comparable loan purchase amounts were approximately $779 million and $857 million , respectively. At September 30, 2016 , $14.7 billion in securities and net eligible loans held by Regions were pledged to secure current and potential borrowings from the FHLB. At September 30, 2016 , an additional $19.7 billion in net eligible loans held by Regions were pledged to the Federal Reserve Bank for potential borrowings. ALLOWANCE FOR CREDIT LOSSES Regions determines the appropriate level of the allowance on at least 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, 2015 , 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 and nine months ended September 30, 2016 and 2015 . The total allowance for loan losses and the related loan portfolio ending balances as of September 30, 2016 and 2015 , 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 September 30, 2016 Commercial Investor Real Estate Consumer Total (In millions) Allowance for loan losses, July 1, 2016 $ 825 $ 87 $ 239 $ 1,151 Provision (credit) for loan losses (15 ) (7 ) 51 29 Loan losses: Charge-offs (31 ) (1 ) (62 ) (94 ) Recoveries 19 5 16 40 Net loan losses (12 ) 4 (46 ) (54 ) Allowance for loan losses, September 30, 2016 798 84 244 1,126 Reserve for unfunded credit commitments, July 1, 2016 59 5 — 64 Provision (credit) for unfunded credit losses 8 — — 8 Reserve for unfunded credit commitments, September 30, 2016 67 5 — 72 Allowance for credit losses, September 30, 2016 $ 865 $ 89 $ 244 $ 1,198 Three Months Ended September 30, 2015 Commercial Investor Real Estate Consumer Total (In millions) Allowance for loan losses, July 1, 2015 $ 740 $ 123 $ 252 $ 1,115 Provision (credit) for loan losses 32 (16 ) 44 60 Loan losses: Charge-offs (33 ) (3 ) (59 ) (95 ) Recoveries 14 5 16 35 Net loan losses (19 ) 2 (43 ) (60 ) Allowance for loan losses, September 30, 2015 753 109 253 1,115 Reserve for unfunded credit commitments, July 1, 2015 59 5 — 64 Provision (credit) for unfunded credit losses — — — — Reserve for unfunded credit commitments, September 30, 2015 59 5 — 64 Allowance for credit losses, September 30, 2015 $ 812 $ 114 $ 253 $ 1,179 Nine Months Ended September 30, 2016 Commercial Investor Real Estate Consumer Total (In millions) Allowance for loan losses, January 1, 2016 $ 758 $ 97 $ 251 $ 1,106 Provision (credit) for loan losses 108 (21 ) 127 214 Loan losses: Charge-offs (102 ) (2 ) (184 ) (288 ) Recoveries 34 10 50 94 Net loan losses (68 ) 8 (134 ) (194 ) Allowance for loan losses, September 30, 2016 798 84 244 1,126 Reserve for unfunded credit commitments, January 1, 2016 47 5 — 52 Provision (credit) for unfunded credit losses 20 — — 20 Reserve for unfunded credit commitments, September 30, 2016 67 5 — 72 Allowance for credit losses, September 30, 2016 $ 865 $ 89 $ 244 $ 1,198 Portion of ending allowance for loan losses: Individually evaluated for impairment $ 252 $ 19 $ 62 $ 333 Collectively evaluated for impairment 546 65 182 793 Total allowance for loan losses $ 798 $ 84 $ 244 $ 1,126 Portion of loan portfolio ending balance: Individually evaluated for impairment $ 1,119 $ 140 $ 785 $ 2,044 Collectively evaluated for impairment 41,625 6,624 30,590 78,839 Total loans evaluated for impairment $ 42,744 $ 6,764 $ 31,375 $ 80,883 Nine Months Ended September 30, 2015 Commercial Investor Real Estate Consumer Total (In millions) Allowance for loan losses, January 1, 2015 $ 654 $ 150 $ 299 $ 1,103 Provision (credit) for loan losses 142 (44 ) 74 172 Loan losses: Charge-offs (92 ) (15 ) (175 ) (282 ) Recoveries 49 18 55 122 Net loan losses (43 ) 3 (120 ) (160 ) Allowance for loan losses, September 30, 2015 753 109 253 1,115 Reserve for unfunded credit commitments, January 1, 2015 57 8 — 65 Provision (credit) for unfunded credit losses 2 (3 ) — (1 ) Reserve for unfunded credit commitments, September 30, 2015 59 5 — 64 Allowance for credit losses, September 30, 2015 $ 812 $ 114 $ 253 $ 1,179 Portion of ending allowance for loan losses: Individually evaluated for impairment $ 187 $ 27 $ 70 $ 284 Collectively evaluated for impairment 566 82 183 831 Total allowance for loan losses $ 753 $ 109 $ 253 $ 1,115 Portion of loan portfolio ending balance: Individually evaluated for impairment $ 744 $ 192 $ 846 $ 1,782 Collectively evaluated for impairment 43,309 6,719 29,253 79,281 Total loans evaluated for impairment $ 44,053 $ 6,911 $ 30,099 $ 81,063 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 September 30, 2016 , and December 31, 2015 . 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. September 30, 2016 Pass Special Mention Substandard Accrual Non-accrual Total (In millions) Commercial and industrial $ 32,854 $ 744 $ 1,097 $ 693 $ 35,388 Commercial real estate mortgage—owner-occupied 6,288 257 241 221 7,007 Commercial real estate construction—owner-occupied 326 10 10 3 349 Total commercial $ 39,468 $ 1,011 $ 1,348 $ 917 $ 42,744 Commercial investor real estate mortgage $ 4,056 $ 129 $ 103 $ 18 $ 4,306 Commercial investor real estate construction 2,242 189 26 1 2,458 Total investor real estate $ 6,298 $ 318 $ 129 $ 19 $ 6,764 Accrual Non-accrual Total (In millions) Residential first mortgage $ 13,352 $ 50 $ 13,402 Home equity 10,657 92 10,749 Indirect—vehicles 4,076 — 4,076 Indirect—other consumer 838 — 838 Consumer credit card 1,123 — 1,123 Other consumer 1,187 — 1,187 Total consumer $ 31,233 $ 142 $ 31,375 $ 80,883 December 31, 2015 Pass Special Mention Substandard Accrual Non-accrual Total (In millions) Commercial and industrial $ 33,639 $ 963 $ 894 $ 325 $ 35,821 Commercial real estate mortgage—owner-occupied 6,750 306 214 268 7,538 Commercial real estate construction—owner-occupied 385 21 15 2 423 Total commercial $ 40,774 $ 1,290 $ 1,123 $ 595 $ 43,782 Commercial investor real estate mortgage $ 3,926 $ 140 $ 158 $ 31 $ 4,255 Commercial investor real estate construction 2,658 4 30 — 2,692 Total investor real estate $ 6,584 $ 144 $ 188 $ 31 $ 6,947 Accrual Non-accrual Total (In millions) Residential first mortgage $ 12,748 $ 63 $ 12,811 Home equity 10,885 93 10,978 Indirect—vehicles 3,984 — 3,984 Indirect—other consumer 545 — 545 Consumer credit card 1,075 — 1,075 Other consumer 1,040 — 1,040 Total consumer $ 30,277 $ 156 $ 30,433 $ 81,162 AGING ANALYSIS The following tables include an aging analysis of days past due (DPD) for each portfolio segment and class as of September 30, 2016 and December 31, 2015 : September 30, 2016 Accrual Loans 30-59 DPD 60-89 DPD 90+ DPD Total 30+ DPD Total Accrual Non-accrual Total (In millions) Commercial and industrial $ 14 $ 7 $ 5 $ 26 $ 34,695 $ 693 $ 35,388 Commercial real estate mortgage—owner-occupied 50 9 3 62 6,786 221 7,007 Commercial real estate construction—owner-occupied 1 1 — 2 346 3 349 Total commercial 65 17 8 90 41,827 917 42,744 Commercial investor real estate mortgage 5 1 — 6 4,288 18 4,306 Commercial investor real estate construction — — — — 2,457 1 2,458 Total investor real estate 5 1 — 6 6,745 19 6,764 Residential first mortgage 87 58 205 350 13,352 50 13,402 Home equity 54 25 39 118 10,657 92 10,749 Indirect—vehicles 46 11 9 66 4,076 — 4,076 Indirect—other consumer 3 2 — 5 838 — 838 Consumer credit card 8 7 13 28 1,123 — 1,123 Other consumer 14 5 3 22 1,187 — 1,187 Total consumer 212 108 269 589 31,233 142 31,375 $ 282 $ 126 $ 277 $ 685 $ 79,805 $ 1,078 $ 80,883 December 31, 2015 Accrual Loans 30-59 DPD 60-89 DPD 90+ DPD Total 30+ DPD Total Accrual Non-accrual Total (In millions) Commercial and industrial $ 11 $ 6 $ 9 $ 26 $ 35,496 $ 325 $ 35,821 Commercial real estate mortgage—owner-occupied 24 7 3 34 7,270 268 7,538 Commercial real estate construction—owner-occupied — 1 — 1 421 2 423 Total commercial 35 14 12 61 43,187 595 43,782 Commercial investor real estate mortgage 14 13 4 31 4,224 31 4,255 Commercial investor real estate construction 2 — — 2 2,692 — 2,692 Total investor real estate 16 13 4 33 6,916 31 6,947 Residential first mortgage 88 60 220 368 12,748 63 12,811 Home equity 58 26 59 143 10,885 93 10,978 Indirect—vehicles 49 14 9 72 3,984 — 3,984 Indirect—other consumer 2 1 — 3 545 — 545 Consumer credit card 7 5 12 24 1,075 — 1,075 Other consumer 11 4 4 19 1,040 — 1,040 Total consumer 215 110 304 629 30,277 156 30,433 $ 266 $ 137 $ 320 $ 723 $ 80,380 $ 782 $ 81,162 IMPAIRED LOANS The following tables present details related to the Company’s impaired loans as of September 30, 2016 and December 31, 2015 . 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 September 30, 2016 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 $ 733 $ 49 $ 684 $ 81 $ 603 $ 162 28.8 % Commercial real estate mortgage—owner-occupied 239 18 221 38 183 56 31.0 Commercial real estate construction—owner-occupied 4 1 3 — 3 2 75.0 Total commercial 976 68 908 119 789 220 29.5 Commercial investor real estate mortgage 21 3 18 5 13 6 42.9 Commercial investor real estate construction 1 — 1 — 1 — — Total investor real estate 22 3 19 5 14 6 40.9 Residential first mortgage 43 13 30 — 30 4 39.5 Home equity 12 1 11 — 11 — 8.3 Total consumer 55 14 41 — 41 4 32.7 $ 1,053 $ 85 $ 968 $ 124 $ 844 $ 230 29.9 % Accruing Impaired Loans As of September 30, 2016 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 $ 150 $ 2 $ 148 $ 26 18.7 % Commercial real estate mortgage—owner-occupied 68 5 63 6 16.2 Total commercial 218 7 211 32 17.9 Commercial investor real estate mortgage 93 7 86 9 17.2 Commercial investor real estate construction 35 — 35 4 11.4 Total investor real estate 128 7 121 13 15.6 Residential first mortgage 441 12 429 52 14.5 Home equity 302 — 302 6 2.0 Consumer credit card 2 — 2 — — Other consumer 11 — 11 — — Total consumer 756 12 744 58 9.3 $ 1,102 $ 26 $ 1,076 $ 103 11.7 % Total Impaired Loans As of September 30, 2016 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 $ 883 $ 51 $ 832 $ 81 $ 751 $ 188 27.1 % Commercial real estate mortgage—owner-occupied 307 23 284 38 246 62 27.7 Commercial real estate construction—owner-occupied 4 1 3 — 3 2 75.0 Total commercial 1,194 75 1,119 119 1,000 252 27.4 Commercial investor real estate mortgage 114 10 104 5 99 15 21.9 Commercial investor real estate construction 36 — 36 — 36 4 11.1 Total investor real estate 150 10 140 5 135 19 19.3 Residential first mortgage 484 25 459 — 459 56 16.7 Home equity 314 1 313 — 313 6 2.2 Consumer credit card 2 — 2 — 2 — — Other consumer 11 — 11 — 11 — — Total consumer 811 26 785 — 785 62 10.9 $ 2,155 $ 111 $ 2,044 $ 124 $ 1,920 $ 333 20.6 % Non-accrual Impaired Loans As of December 31, 2015 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 $ 363 $ 41 $ 322 $ 26 $ 296 $ 98 38.3 % Commercial real estate mortgage—owner-occupied 286 18 268 36 232 69 30.4 Commercial real estate construction—owner-occupied 2 — 2 — 2 1 50.0 Total commercial 651 59 592 62 530 168 34.9 Commercial investor real estate mortgage 36 5 31 13 18 8 36.1 Total investor real estate 36 5 31 13 18 8 36.1 Residential first mortgage 51 16 35 — 35 4 39.2 Home equity 14 1 13 — 13 — 7.1 Total consumer 65 17 48 — 48 4 32.3 $ 752 $ 81 $ 671 $ 75 $ 596 $ 180 34.7 % Accruing Impaired Loans As of December 31, 2015 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 $ 68 $ 1 $ 67 $ 13 20.6 % Commercial real estate mortgage—owner-occupied 89 6 83 8 15.7 Commercial real estate construction—owner-occupied 1 — 1 — — Total commercial 158 7 151 21 17.7 Commercial investor real estate mortgage 141 8 133 13 14.9 Commercial investor real estate construction 27 — 27 5 18.5 Total investor real estate 168 8 160 18 15.5 Residential first mortgage 457 13 444 57 15.3 Home equity 328 — 328 7 2.1 Indirect—vehicles 1 — 1 — — Consumer credit card 2 — 2 — — Other consumer 12 — 12 — — Total consumer 800 13 787 64 9.6 $ 1,126 $ 28 $ 1,098 $ 103 11.6 % Total Impaired Loans As of December 31, 2015 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 $ 431 $ 42 $ 389 $ 26 $ 363 $ 111 35.5 % Commercial real estate mortgage—owner-occupied 375 24 351 36 315 77 26.9 Commercial real estate construction—owner-occupied 3 — 3 — 3 1 33.3 Total commercial 809 66 743 62 681 189 31.5 Commercial investor real estate mortgage 177 13 164 13 151 21 19.2 Commercial investor real estate construction 27 — 27 — 27 5 18.5 Total investor real estate 204 13 191 13 178 26 19.1 Residential first mortgage 508 29 479 — 479 61 17.7 Home equity 342 1 341 — 341 7 2.3 Indirect—vehicles 1 — 1 — 1 — — Consumer credit card 2 — 2 — 2 — — Other consumer 12 — 12 — 12 — — Total consumer 865 30 835 — 835 68 11.3 $ 1,878 $ 109 $ 1,769 $ 75 $ 1,694 $ 283 20.9 % ________ (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 and nine months ended September 30, 2016 and 2015 . Interest income recognized represents interest on accruing loans modified in a TDR. TDRs are considered impaired loans. Three Months Ended September 30 Nine Months Ended September 30 2016 2015 2016 2015 Average Balance Interest Income Recognized Average Balance Interest Income Recognized Average Balance Interest Income Recognized Average Balance Interest Income Recognized (In millions) Commercial and industrial $ 816 $ 1 $ 379 $ 1 $ 670 $ 4 $ 378 $ 4 Commercial real estate mortgage—owner-occupied 296 1 322 2 313 3 350 7 Commercial real estate construction—owner-occupied 4 — 4 — 3 — 4 — Total commercial 1,116 2 705 3 986 7 732 11 Commercial investor real estate mortgage 117 1 210 2 128 4 266 8 Commercial investor real estate construction 36 1 14 — 31 1 26 1 Total investor real estate 153 2 224 2 159 5 292 9 Residential first mortgage 464 4 477 3 473 12 476 11 Home equity 317 3 352 5 328 12 357 14 Indirect—vehicles — — 1 — — — 1 — Consumer credit card 2 — 2 — 2 — 2 — Other consumer 11 1 13 1 12 1 15 1 Total consumer 794 8 845 9 815 25 851 26 Total impaired loans $ 2,063 $ 12 $ 1,774 $ 14 $ 1,960 $ 37 $ 1,875 $ 46 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 program. Refer to Note 6 "Allowance For Credit Losses" in the 2015 Annual Report on Form 10-K for additional information regarding the Company's TDRs. None of the modified consumer loans listed in the following TDR disclosures were collateral-dependent at the time of modification. At September 30, 2016 , approximately $38 million in residential first mortgage TDRs were in excess of 180 days past due and were considered collateral-dependent. At September 30, 2016 , approximately $5 million in home equity first lien TDRs were in excess of 180 days past due and approximately $4 million in home equity second lien TDRs were in excess of 120 days past due, both of which were considered collateral-dependent. 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 2015 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 nine months ended September 30, 2016 and 2015 totaled approximately $347 million and $217 million , respectively. Three Months Ended September 30, 2016 Financial Impact of Modifications Considered TDRs Number of Obligors Recorded Investment Increase in Allowance at Modification (Dollars in millions) Commercial and industrial 47 $ 117 $ 2 Commercial real estate mortgage—owner-occupied 22 26 1 Total commercial 69 143 3 Commercial investor real estate mortgage 19 27 — Commercial investor real estate construction 3 25 1 Total investor real estate 22 52 1 Residential first mortgage 51 9 1 Home equity 57 2 — Consumer credit card 14 1 — Indirect—vehicles and other consumer 47 1 — Total consumer 169 13 1 260 $ 208 $ 5 Three Months Ended September 30, 2015 Financial Impact of Modifications Considered TDRs Number of Obligors Recorded Investment Increase in Allowance at Modification (Dollars in millions) Commercial and industrial 47 $ 43 $ 1 Commercial real estate mortgage—owner-occupied 44 26 1 Total commercial 91 69 2 Commercial investor real estate mortgage 32 68 2 Commercial investor real estate construction 1 1 — Total investor real estate 33 69 2 Residential first mortgage 92 31 4 Home equity 139 8 — Consumer credit card 30 — — Indirect—vehicles and other consumer 69 1 — Total consumer 330 40 4 454 $ 178 $ 8 Nine Months Ended September 30, 2016 Financial Impact Number of Recorded Increase in (Dollars in millions) Commercial and industrial 142 $ 298 $ 8 Commercial real estate mortgage—owner-occupied 98 60 2 Total commercial 240 358 10 Commercial investor real estate mortgage 68 87 1 Commercial investor real estate construction 8 36 1 Total investor real estate 76 123 2 Residential first mortgage 189 38 5 Home equity 263 13 — Consumer credit card 65 1 — Indirect—vehicles and other consumer 148 2 — Total consumer 665 54 5 981 $ 535 $ 17 Nine Months Ended September 30, 2015 Financial Impact Number of Recorded Increase in (Dollars in millions) Commercial and industrial 150 $ 145 $ 3 Commercial real estate mortgage—owner-occupied 147 88 3 Total commercial 297 233 6 Commercial investor real estate mortgage 92 107 3 Commercial investor real estate construction 14 8 — Total investor real estate 106 115 3 Residential first mortgage 321 83 11 Home equity 451 23 — Consumer credit card 103 1 — Indirect—vehicles and other consumer 265 3 — Total consumer 1,140 110 11 1,543 $ 458 $ 20 Defaulted TDRs The following table presents, by portfolio segment and class, TDRs that defaulted during the three and nine months ended September 30, 2016 and 2015 , and that were modified in the previous twelve months (i.e., the twelve months prior to the default). For purposes of this disclosure, default is defined as 90 days past due and still accruing for the consumer portfolio segment, and placement on non-accrual status for the commercial and investor real estate portfolio segments. Consideration of defaults in the calculation of the allowance for loan losses is described in detail in the consolidated financial statements included in the Annual Report on Form 10-K for the year ended December 31, 2015 . Three Months Ended September 30 Nine Months Ended September 30 2016 2015 2016 2015 (In millions) Defaulted During the Period, Where Modified in a TDR Twelve Months Prior to Default Commercial and industrial $ 16 $ 4 $ 28 $ 8 Commercial real estate mortgage—owner-occupied 1 3 2 6 Total commercial 17 7 30 14 Commercial investor real estate mortgage 1 — 2 1 Commercial investor real estate construction 1 — 1 — Total investor real estate 2 — 3 1 Residential first mortgage 7 7 18 15 Home equity — 1 1 2 Total consumer 7 8 19 17 $ 26 $ 15 $ 52 $ 32 Commercial and investor real estate loans that were on non-accrual status at the time of the latest modification are not included in the default table above, as they are already considered to be in default at the time of the restructuring. At September 30, 2016 , approximately $66 million of commercial and investor real estate loans modified in a TDR during the three months ended September 30, 2016 were on non-accrual status. Approximately 1.2 percent of this amount was 90 days past due. At September 30, 2016 , Regions had restructured binding unfunded commitments totaling $51 million where a concession was granted and the borrower was in financial difficulty.

Servicing of Financial Assets

Servicing of Financial Assets	9 Months Ended
	Sep. 30, 2016
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 September 30 Nine Months Ended September 30 2016 2015 2016 2015 (In millions) Carrying value, beginning of period $ 216 $ 268 $ 252 $ 257 Additions 34 9 73 28 Increase (decrease) in fair value (1) : Due to change in valuation inputs or assumptions (2 ) (25 ) (60 ) (14 ) Economic amortization associated with borrower repayments (10 ) (11 ) (27 ) (30 ) Carrying value, end of period $ 238 $ 241 $ 238 $ 241 ________ (1) "Economic amortization associated with borrower repayments" includes both total loan payoffs as well as partial paydowns. On February 29, 2016, the Company purchased the rights to service approximately $2.6 billion in residential mortgage loans for approximately $24 million . On September 1, 2016, the Company purchased the rights to service approximately $2.8 billion in residential mortgage loans for approximately $22 million . However, the Company paid $11 million as of September 30, 2016 and the balance of $11 million will be paid in the fourth quarter of 2016. 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: September 30 2016 2015 (Dollars in millions) Unpaid principal balance $ 29,657 $ 26,220 Weighted-average prepayment speed (CPR; percentage) 12.3 % 12.0 % Estimated impact on fair value of a 10% increase $ (13 ) $ (13 ) Estimated impact on fair value of a 20% increase $ (24 ) $ (25 ) Option-adjusted spread (basis points) 1,060 999 Estimated impact on fair value of a 10% increase $ (9 ) $ (9 ) Estimated impact on fair value of a 20% increase $ (18 ) $ (18 ) Weighted-average coupon interest rate 4.2 % 4.4 % Weighted-average remaining maturity (months) 280 279 Weighted-average servicing fee (basis points) 27.6 27.9 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 September 30 Nine Months Ended September 30 2016 2015 2016 2015 (In millions) Servicing related fees and other ancillary income $ 21 $ 21 $ 63 $ 62 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 On July 18, 2014, Regions was approved as a Fannie Mae DUS lender and acquired a DUS servicing portfolio totaling approximately $1.0 billion . The Fannie Mae DUS program provides liquidity to the multi-family housing market. As part of the transaction, Regions recorded $12 million in commercial MSRs and $15 million in intangible assets associated with the DUS license purchased. Regions also assumed a loss share guarantee associated with the purchased portfolio and any future originations. Regions estimated the fair value of the loss share guarantee to be approximately $4 million . See Note 1 "Summary of Significant Accounting Policies" in the 2015 Annual Report on Form 10-K for additional information. Also see Note 14 herein for additional information related to the guarantee. As of September 30, 2016 and December 31, 2015 , the DUS servicing portfolio was approximately $1.7 billion and $1.2 billion , respectively. The related commercial MSRs were valued at approximately $28 million and $16 million at September 30, 2016 and December 31, 2015 , respectively. The loss share guarantee was valued at approximately $3 million at both September 30, 2016 and December 31, 2015 .

Goodwill

Goodwill	9 Months Ended
	Sep. 30, 2016
Goodwill and Intangible Assets Disclosure [Abstract]
Goodwill	GOODWILL Goodwill allocated to each reportable segment (each a reporting unit) is presented as follows: September 30, 2016 December 31, 2015 (In millions) Corporate Bank $ 2,452 $ 2,305 Consumer Bank 1,978 2,095 Wealth Management 452 478 $ 4,882 $ 4,878 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, 2015. 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 third quarter of 2016, Regions assessed events and circumstances for all three reporting units as of September 30, 2016, 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. During the first quarter of 2016, Regions reorganized its internal management structure and, accordingly, its segment reporting structure. Due to the organizational realignment, Regions determined that quantitative testing of goodwill was required for all reporting units, and goodwill was reallocated to each reporting unit using a relative fair value approach. Results of the first quarter 2016 goodwill test indicated that the estimated fair value of each reporting unit exceeded its carrying amounts as of the test date. Additionally, 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 September 30, 2016. Therefore, Regions determined that a test of goodwill impairment was not required for each of Regions’ reporting units for the September 30, 2016 interim period.

Stockholders' Equity and Accumu

Stockholders' Equity and Accumulated Other Comprehensive Income (Loss)	9 Months Ended
	Sep. 30, 2016
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: September 30, 2016 December 31, 2015 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 Series A Preferred Stock during each of the first three quarters of 2016 and 2015. Series B Preferred Stock dividends were also $8 million for each of the first three quarters of 2016 and 2015. Prior to the first quarter of 2016, the Company was in a retained deficit position and preferred dividends were recorded as a reduction of preferred stock, including related surplus. During the first quarter of 2016, the Company achieved positive retained earnings and preferred dividends were recorded as a reduction of retained earnings. 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 29, 2016, Regions received no objection from the Federal Reserve to its 2016 capital plan that was submitted as part of the CCAR process. In addition to continuing the $0.065 quarterly common stock dividend, actions that Regions may undertake as outlined in its capital plan include the repurchase of up to $640 million in common shares. The capital plan also provides the potential for a dividend increase beginning in the second quarter of 2017, which is expected to be considered by the Board in early 2017. On July 14, 2016, Regions' Board authorized a new $640 million common stock repurchase plan, permitting repurchases from the beginning of the third quarter of 2016 through the second quarter of 2017. As of September 30, 2016, Regions had repurchased approximately 23.1 million shares of common stock at a total cost of approximately $215 million . On October 12, 2016, Regions' Board authorized an additional $120 million repurchase, which increases the total amount authorized under the plan to $760 million . The Company continued to repurchase shares under this plan in the fourth quarter of 2016, and as of November 3, 2016, Regions had additional repurchases of approximately 10.9 million shares of common stock at a total cost of approximately $116.7 million . All of these shares were immediately retired upon repurchase and therefore will not be included in treasury stock. The Board declared a $0.065 per share cash dividend on common stock for the second and third quarter s of 2016 and $0.06 per common share for the first quarter of 2016, totaling $0.19 per share cash dividend for the first nine months of 2016. The Board declared a $0.06 per share cash dividend on common stock for the second and third quarters of 2015, and a $0.05 per share cash dividend for the first quarter of 2015, totaling $0.17 per share cash dividend for the first nine months of 2015. Prior to the first quarter of 2016, the Company was in a retained deficit position and common stock dividends were recorded as a reduction of additional paid-in capital. During the first quarter of 2016, the Company achieved positive retained earnings and common stock dividends were recorded as a reduction of retained earnings. 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 September 30, 2016 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 $ (40 ) $ 297 $ 278 $ (387 ) $ 148 Net change 5 (13 ) (40 ) 5 (43 ) End of period $ (35 ) $ 284 $ 238 $ (382 ) $ 105 Three Months Ended September 30, 2015 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 $ (51 ) $ 96 $ 45 $ (377 ) $ (287 ) Net change 2 42 96 8 148 End of period $ (49 ) $ 138 $ 141 $ (369 ) $ (139 ) Nine Months Ended September 30, 2016 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 (In millions) Beginning of period $ (47 ) $ (10 ) $ 75 $ (398 ) $ (380 ) Net change 12 294 163 16 485 End of period $ (35 ) $ 284 $ 238 $ (382 ) $ 105 Nine Months Ended September 30, 2015 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 (In millions) Beginning of period $ (55 ) $ 175 $ 33 $ (391 ) $ (238 ) Net change 6 (37 ) 108 22 99 End of period $ (49 ) $ 138 $ 141 $ (369 ) $ (139 ) The following tables present amounts reclassified out of accumulated other comprehensive income (loss) for the three and nine months ended September 30, 2016 and 2015 : Three Months Ended September 30, 2016 Three Months Ended September 30, 2015 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: $ (9 ) $ (3 ) Net interest income and other financing income 4 1 Tax (expense) or benefit $ (5 ) $ (2 ) Net of tax Unrealized gains and (losses) on available for sale securities: $ — $ 7 Securities gains (losses), net — (2 ) Tax (expense) or benefit $ — $ 5 Net of tax Gains and (losses) on cash flow hedges: Interest rate contracts $ 35 $ 41 Net interest income and other financing income (13 ) (16 ) Tax (expense) or benefit $ 22 $ 25 Net of tax Amortization of defined benefit pension plans and other post employment benefits: Prior-service cost $ — $ (1 ) (2) Actuarial gains (losses) (9 ) (12 ) (2) (9 ) (13 ) Total before tax 3 4 Tax (expense) or benefit $ (6 ) $ (9 ) Net of tax Total reclassifications for the period $ 11 $ 19 Net of tax Nine Months Ended September 30, 2016 Nine Months Ended September 30, 2015 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: $ (20 ) $ (10 ) Net interest income and other financing income 8 4 Tax (expense) or benefit $ (12 ) $ (6 ) Net of tax Unrealized gains and (losses) on available for sale securities: $ 1 $ 18 Securities gains (losses), net — (6 ) Tax (expense) or benefit $ 1 $ 12 Net of tax Gains and (losses) on cash flow hedges: Interest rate contracts $ 109 $ 108 Net interest income and other financing income (41 ) (41 ) Tax (expense) or benefit $ 68 $ 67 Net of tax Amortization of defined benefit pension plans and other post employment benefits: Prior-service cost $ — $ (1 ) (2) Actuarial gains (losses) (26 ) (36 ) (2) (26 ) (37 ) Total before tax 9 13 Tax (expense) or benefit $ (17 ) $ (24 ) Net of tax Total reclassifications for the period $ 40 $ 49 Net of tax ________ (1) Amounts in parentheses indicate reductions to net income. (2) These accumulated other comprehensive income (loss) components are included in the computation of net periodic pension cost and are included in salaries and employee benefits on the consolidated statements of income (see Note 10 for additional details).

Earnings (Loss) Per Common Shar

Earnings (Loss) Per Common Share	9 Months Ended
	Sep. 30, 2016
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 September 30 Nine Months Ended September 30 2016 2015 2016 2015 (In millions, except per share amounts) Numerator: Income from continuing operations $ 319 $ 262 $ 864 $ 787 Preferred stock dividends (16 ) (16 ) (48 ) (48 ) Income from continuing operations available to common shareholders 303 246 816 739 Income (loss) from discontinued operations, net of tax 1 (4 ) 4 (10 ) Net income available to common shareholders $ 304 $ 242 $ 820 $ 729 Denominator: Weighted-average common shares outstanding—basic 1,246 1,319 1,266 1,333 Potential common shares 6 7 4 10 Weighted-average common shares outstanding—diluted 1,252 1,326 1,270 1,343 Earnings per common share from continuing operations available to common shareholders (1) : Basic $ 0.24 $ 0.19 $ 0.64 $ 0.55 Diluted 0.24 0.19 0.64 0.55 Earnings (loss) per common share from discontinued operations (1) : Basic 0.00 (0.00 ) 0.00 (0.01 ) Diluted 0.00 (0.00 ) 0.00 (0.01 ) Earnings per common share (1) : Basic 0.24 0.18 0.65 0.55 Diluted 0.24 0.18 0.65 0.54 ________ (1) Certain per share amounts may not appear to reconcile due to rounding. For earnings (loss) per common share from discontinued operations, basic and diluted weighted-average common shares outstanding are the same for the three and nine months ended September 30, 2015 due to a net loss. The effect from the assumed exercise of 27 million and 29 million stock options for the three and nine months ended September 30, 2016 , 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. The effect from the assumed exercise of 29 million stock options for both the three and nine months ended September 30, 2015 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.

Share-Based Payments

Share-Based Payments	9 Months Ended
	Sep. 30, 2016
Disclosure of Compensation Related Costs, Share-based Payments [Abstract]
Share-Based Payments	SHARE-BASED PAYMENTS Regions administers long-term incentive compensation plans that permit the granting of incentive awards in the form of stock options, restricted stock awards, performance awards and stock appreciation rights. While Regions has the ability to issue stock appreciation rights, none have been issued to date. The terms of all awards issued under these plans are determined by the Compensation Committee of the Board; however, no awards may be granted after the tenth anniversary from the date the plans were initially approved by stockholders. Incentive awards usually vest based on employee service, generally within three years from the date of the grant. The contractual lives of options granted under these plans are typically ten years from the date of the grant. On April 23, 2015, the stockholders of the Company approved the Regions Financial Corporation 2015 LTIP , which permits the Company to grant to employees and directors various forms of incentive compensation. These forms of incentive compensation are similar to the types of compensation approved in prior plans. The 2015 LTIP authorizes 60 million common share equivalents available for grant, where grants of options and grants of full value awards (e.g., shares of restricted stock, restricted stock units and performance stock units) count as one share equivalent. Unless otherwise determined by the Compensation Committee of the Board, grants of restricted stock, restricted stock units, and performance stock units accrue dividends, or their notional equivalent, as they are declared by the Board, and are paid upon vesting of the award. Upon adoption of the 2015 LTIP, Regions closed the prior long-term incentive plan to new grants, and, accordingly, prospective grants must be made under the 2015 LTIP or a successor plan. All existing grants under prior long-term incentive plans are unaffected by adoption of the 2015 LTIP. The number of remaining share equivalents available for future issuance under the 2015 LTIP was approximately 48 million at September 30, 2016 . STOCK OPTIONS The following table summarizes the activity related to stock options: Nine Months Ended September 30 2016 2015 Number of Options Weighted-Average Exercise Price Number of Options Weighted-Average Exercise Price Outstanding at beginning of period 19,350,157 $ 21.06 25,316,676 $ 23.07 Exercised (568,882 ) 5.86 (535,107 ) 6.92 Forfeited or expired (3,840,704 ) 34.68 (5,410,769 ) 31.82 Outstanding at end of period 14,940,571 $ 18.14 19,370,800 $ 21.07 Exercisable at end of period 14,940,571 $ 18.14 19,370,800 $ 21.07 RESTRICTED STOCK AWARDS AND PERFORMANCE STOCK AWARDS Regions periodically grants restricted stock awards that vest upon service conditions. Regions also periodically grants restricted stock awards and performance stock awards that vest based upon service conditions and performance conditions. Incremental shares earned above the performance target associated with previous performance stock awards are included when and if performance targets are achieved. Dividend payments during the vesting period are deferred to the end of the vesting term. The fair value of these restricted shares, restricted stock units and performance stock units was estimated based upon the fair value of the underlying shares on the date of the grant. The valuation was not adjusted for the deferral of dividends. The following table summarizes the activity related to restricted stock awards and performance stock awards: Nine Months Ended September 30 2016 2015 Number of Shares Weighted-Average Grant Date Fair Value Number of Shares Weighted-Average Non-vested at beginning of period 16,374,242 $ 9.51 18,427,409 $ 8.07 Granted 6,840,385 7.92 6,622,682 9.90 Vested (5,735,271 ) 8.25 (8,106,010 ) 6.07 Forfeited (686,347 ) 9.18 (506,271 ) 8.54 Non-vested at end of period 16,793,009 $ 9.31 16,437,810 $ 9.51

Pension and Other Postretiremen

Pension and Other Postretirement Benefits	9 Months Ended
	Sep. 30, 2016
Defined Benefit Pension Plans and Defined Benefit Postretirement Plans Disclosure [Abstract]
Pension and Other Postretirement Benefits	PENSION AND OTHER POSTRETIREMENT BENEFITS Regions has a defined benefit pension plan qualified under the Internal Revenue Code covering only certain employees as the pension plan is 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, which is recorded in salaries and employee benefits on the consolidated statements of income, included the following components: Qualified Plan Non-qualified Plans Total Three Months Ended September 30 2016 2015 2016 2015 2016 2015 (In millions) Service cost $ 9 $ 10 $ 1 $ 1 $ 10 $ 11 Interest cost 19 21 1 2 20 23 Expected return on plan assets (36 ) (38 ) — — (36 ) (38 ) Amortization of actuarial loss 8 11 1 1 9 12 Amortization of prior service cost — — — 1 — 1 Net periodic pension cost (credit) $ — $ 4 $ 3 $ 5 $ 3 $ 9 Qualified Plan Non-qualified Plans Total Nine Months Ended September 30 2016 2015 2016 2015 2016 2015 (In millions) Service cost $ 26 $ 30 $ 3 $ 4 $ 29 $ 34 Interest cost 55 63 4 5 59 68 Expected return on plan assets (108 ) (112 ) — — (108 ) (112 ) Amortization of actuarial loss 24 33 2 3 26 36 Amortization of prior service cost — — — 1 — 1 Net periodic pension cost (credit) $ (3 ) $ 14 $ 9 $ 13 $ 6 $ 27 On December 31, 2015, Regions changed the basis for determining the assumption used to estimate the service and interest components of net periodic pension costs for pension and other postretirement benefits. This change provides a more precise measurement of service and interest costs and resulted in an immaterial impact to the pension benefit obligation as of December 31, 2015. Additionally, Regions separated the Regions Financial Corporation Retirement Plan into two plans, effective January 1, 2016, creating a new plan primarily for participants who remained actively employed as of that date. The corresponding assets and liabilities of these participants will be transferred to the new plan in 2016. All other participants will remain in the existing plan. See Note 18 "Employee Benefit Plans" of the Annual Report on Form 10-K for the year ended December 31, 2015 for further discussion. Regions' policy for funding the qualified pension plan is to contribute annually at least the amount required by the IRS minimum funding standards. Regions made no contribution to the plan during the first nine months of 2016. 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 nine months ended September 30, 2016 or 2015 .

Derivative Financial Instrument

Derivative Financial Instruments and Hedging Activities	9 Months Ended
	Sep. 30, 2016
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 September 30, 2016 and December 31, 2015 . September 30, 2016 December 31, 2015 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 $ 2,310 $ 6 $ 45 $ 2,450 $ 5 $ 27 Derivatives in cash flow hedging relationships: Interest rate swaps 9,000 97 2 9,800 109 9 Total derivatives designated as hedging instruments $ 11,310 $ 103 $ 47 $ 12,250 $ 114 $ 36 Derivatives not designated as hedging instruments: Interest rate swaps $ 41,529 $ 641 $ 655 $ 40,612 $ 496 $ 528 Interest rate options 3,723 18 1 3,441 11 1 Interest rate futures and forward commitments 20,693 3 8 17,288 5 6 Other contracts 5,255 90 81 4,367 200 187 Total derivatives not designated as hedging instruments $ 71,200 $ 752 $ 745 $ 65,708 $ 712 $ 722 Total derivatives $ 82,510 $ 855 $ 792 $ 77,958 $ 826 $ 758 _________ (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. 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, 2015 , 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 include 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 issues long-term fixed-rate debt for various funding needs. Regions may enter into receive LIBOR/pay fixed forward starting swaps to hedge risks of changes in the projected quarterly interest payments attributable to changes in the benchmark interest rate (LIBOR) during the time leading up to the probable issuance date of the new long-term fixed-rate debt. Regions recognized an unrealized after-tax gain of $179 million and $24 million in accumulated other comprehensive income (loss) at September 30, 2016 and 2015 , 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 $22 million and $11 million during the three months ended September 30, 2016 and 2015 , respectively, and pre-tax income of $46 million and $33 million during the nine months ended September 30, 2016 and 2015 , respectively, related to the amortization of cash flow hedges of loan instruments. Regions expects to reclassify out of accumulated other comprehensive income (loss) and into earnings approximately $123 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 $76 million in pre-tax net gains 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 nine years as of September 30, 2016 . The following tables present the effect of hedging derivative instruments on the consolidated statements of income: Gain or (Loss) Recognized in Income on Derivatives Location of Amounts Recognized in Income on Derivatives and Related Hedged Item Gain or (Loss) Recognized in Income on Related Hedged Item Three Months Ended September 30 Three Months Ended September 30 2016 2015 2016 2015 (In millions) (In millions) Fair Value Hedges: Interest rate swaps on: Debt/CDs $ 2 $ 5 Interest expense $ — $ (1 ) Debt/CDs (23 ) 10 Other non-interest expense 24 (11 ) Securities available for sale (2 ) (3 ) Interest income — — Securities available for sale 2 (23 ) Other non-interest expense (5 ) 21 Total $ (21 ) $ (11 ) $ 19 $ 9 Effective Portion (3) Gain or (Loss) Recognized in AOCI (1) Location of Amounts Reclassified from AOCI into Income Gain or (Loss) Reclassified from AOCI into Income (2) Three Months Ended September 30 Three Months Ended September 30 2016 2015 2016 2015 (In millions) (In millions) Cash Flow Hedges: Interest rate swaps $ (40 ) $ 96 Interest income on loans $ 35 $ 41 Total $ (40 ) $ 96 $ 35 $ 41 Gain or (Loss) Recognized in Income on Derivatives Location of Amounts Recognized in Income on Derivatives and Related Hedged Item Gain or (Loss) Recognized in Income on Related Hedged Item Nine Months Ended September 30 Nine Months Ended September 30 2016 2015 2016 2015 (In millions) (In millions) Fair Value Hedges: Interest rate swaps on: Debt/CDs $ 10 $ 13 Interest expense $ (2 ) $ 5 Debt/CDs 4 14 Other non-interest expense (3 ) (15 ) Securities available for sale (7 ) (11 ) Interest income — — Securities available for sale (36 ) (18 ) Other non-interest expense 32 15 Total $ (29 ) $ (2 ) $ 27 $ 5 Effective Portion (3) Gain or (Loss) Recognized in AOCI (1) Location of Amounts Reclassified from AOCI into Income Gain or (Loss) Reclassified from AOCI into Income (2) Nine Months Ended September 30 Nine Months Ended September 30 2016 2015 2016 2015 (In millions) (In millions) Cash Flow Hedges: Interest rate swaps $ 163 $ 108 Interest income on loans $ 109 $ 108 Total $ 163 $ 108 $ 109 $ 108 ______ (1) After-tax (2) Pre-tax (3) All cash flow hedges were highly effective for all periods presented, and the change in fair value attributed to hedge ineffectiveness was not material. 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 September 30, 2016 and December 31, 2015 , Regions had $446 million and $322 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 September 30, 2016 and December 31, 2015 , Regions had $802 million and $666 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 on its consolidated statements of income. As of September 30, 2016 and December 31, 2015 , the total notional amount related to these contracts was $5.8 billion and $3.6 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 and nine months ended September 30, 2016 and 2015 : Three Months Ended September 30 Nine Months Ended September 30 Derivatives Not Designated as Hedging Instruments 2016 2015 2016 2015 (In millions) Capital markets fee income and other (1) : Interest rate swaps $ 4 $ 3 $ 7 $ 11 Interest rate options 2 5 16 9 Interest rate futures and forward commitments 1 1 4 — Other contracts (11 ) 8 (9 ) 1 Total capital markets fee income and other (4 ) 17 18 21 Mortgage income: Interest rate swaps (3 ) 22 45 19 Interest rate options (1 ) — 7 4 Interest rate futures and forward commitments 8 (8 ) 9 (1 ) Total mortgage income 4 14 61 22 $ — $ 31 $ 79 $ 43 ______ (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 September 30, 2016 and December 31, 2015 , totaled approximately $463 million and $406 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. Credit derivatives, 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 2016 and 2023. Credit derivatives whereby Regions has sold credit protection have maturities between 2016 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 September 30, 2016 was approximately $90 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 September 30, 2016 and 2015 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 September 30, 2016 and December 31, 2015 , were $193 million and $180 million , respectively, for which Regions had posted collateral of $191 million and $180 million , respectively, in the normal course of business. OFFSETTING Regions engages in derivatives transactions with dealers and customers. These derivatives transactions are subject to enforceable master netting agreements, which include a right of setoff by the non-defaulting or non-affected party upon early termination of the derivatives transaction. The following table presents the Company's gross derivative positions, including collateral posted or received, as of September 30, 2016 and December 31, 2015 . Offsetting Derivative Assets Offsetting Derivative Liabilities September 30, 2016 December 31, 2015 September 30, 2016 December 31, 2015 (In millions) Gross amounts subject to offsetting $ 712 $ 718 $ 616 $ 677 Gross amounts not subject to offsetting 143 108 176 81 Gross amounts recognized 855 826 792 758 Gross amounts offset in the consolidated balance sheets (1) 388 409 571 558 Net amounts presented in the consolidated balance sheets 467 417 221 200 Gross amounts not offset in the consolidated balance sheets: Financial instruments 4 5 51 50 Cash collateral received/posted — 6 129 52 Net amounts $ 463 $ 406 $ 41 $ 98 ________ (1) At September 30, 2016 , gross amounts of derivative assets and liabilities offset in the consolidated balance sheets presented above include cash collateral received of $271 million and cash collateral posted of $88 million . At December 31, 2015 , gross amounts of derivative assets and liabilities offset in the consolidated balance sheets presented above include cash collateral received of $108 million and cash collateral posted of $256 million . Gross amounts of derivatives not subject to offsetting primarily consist of derivatives cleared through a Central Counterparty Clearing House and interest rate lock commitments to originate mortgage loans.

Fair Value Measurements

Fair Value Measurements	9 Months Ended
	Sep. 30, 2016
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, 2015 for a description of valuation methodologies for assets and liabilities measured at fair value on a recurring and non-recurring basis. In the third quarter of 2016, Regions began utilizing OIS curves as fair value measurement inputs for the valuation of interest rate and commodity derivatives. Assets and liabilities measured at fair value rarely transfer between Level 1 and Level 2 measurements. There were no such transfers during the nine month periods ended September 30, 2016 and 2015 . Trading account securities and 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 September 30, 2016 and December 31, 2015 : September 30, 2016 December 31, 2015 Level 1 Level 2 Level 3 Total Estimated Fair Value Level 1 Level 2 Level 3 Total Estimated Fair Value (In millions) Recurring fair value measurements Trading account securities $ 120 $ — $ — $ 120 $ 110 $ — $ 33 $ 143 Securities available for sale: U.S. Treasury securities $ 242 $ — $ — $ 242 $ 228 $ — $ — $ 228 Federal agency securities — 38 — 38 — 218 — 218 Obligations of states and political subdivisions — — — — — 1 — 1 Mortgage-backed securities (MBS): Residential agency — 17,506 — 17,506 — 16,062 — 16,062 Residential non-agency — — 5 5 — — 5 5 Commercial agency — 3,413 — 3,413 — 3,018 — 3,018 Commercial non-agency — 1,141 — 1,141 — 1,231 — 1,231 Corporate and other debt securities — 1,331 3 1,334 — 1,664 3 1,667 Equity securities 180 — — 180 280 — — 280 Total securities available for sale $ 422 $ 23,429 $ 8 $ 23,859 $ 508 $ 22,194 $ 8 $ 22,710 Mortgage loans held for sale $ — $ 459 $ 90 $ 549 $ — $ 353 $ — $ 353 Residential mortgage servicing rights $ — $ — $ 238 $ 238 $ — $ — $ 252 $ 252 Derivative assets: Interest rate swaps $ — $ 744 $ — $ 744 $ — $ 610 $ — $ 610 Interest rate options — 2 16 18 — 1 10 11 Interest rate futures and forward commitments — 3 — 3 — 5 — 5 Other contracts 4 86 — 90 — 200 — 200 Total derivative assets $ 4 $ 835 $ 16 $ 855 $ — $ 816 $ 10 $ 826 Derivative liabilities: Interest rate swaps $ — $ 702 $ — $ 702 $ — $ 564 $ — $ 564 Interest rate options — 1 — 1 — 1 — 1 Interest rate futures and forward commitments — 8 — 8 — 6 — 6 Other contracts — 81 — 81 — 187 — 187 Total derivative liabilities $ — $ 792 $ — $ 792 $ — $ 758 $ — $ 758 Non-recurring fair value measurements Loans held for sale $ — $ — $ 11 $ 11 $ — $ — $ 36 $ 36 Foreclosed property and other real estate — 38 12 50 — 30 8 38 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 the ALCO of the Company in a holistic approach to managing price fluctuation risks. The following tables illustrate rollforwards for all assets and liabilities measured at fair value on a recurring basis using significant unobservable inputs (Level 3) for the three and nine months ended September 30, 2016 and 2015 . The tables do not reflect the change in fair value attributable to any related economic hedges the Company used to mitigate the interest rate risk associated with these assets and liabilities. The net changes in realized gains (losses) included in earnings related to Level 3 assets and liabilities held at September 30, 2016 and 2015 are not material. Three Months Ended September 30, 2016 Opening Total Realized / Unrealized Gains or Losses Purchases Sales Issuances Settlements Transfers Transfers Closing Included in Earnings Included in Other Compre- hensive Income (Loss) (In millions) Level 3 Instruments Only Securities available for sale: Residential non-agency MBS $ 5 — — — — — — — — $ 5 Corporate and other debt securities 3 — — — — — — — — 3 Total securities available for sale $ 8 — — — — — — — — $ 8 Commercial mortgage loans held for sale $ 30 — — — — 60 — — — $ 90 Residential mortgage servicing rights $ 216 (12 ) (1) — 34 — — — — — $ 238 Total derivatives, net $ 17 32 (2) — — — — (33 ) — — $ 16 Three Months Ended September 30, 2015 Opening Total Realized / Purchases Sales Issuances Settlements Transfers Transfers Closing Included Included (In millions) Level 3 Instruments Only Securities available for sale: Residential non-agency MBS $ 6 — — — — — — — — $ 6 Corporate and other debt securities 3 — — — — — — — — 3 Total securities available for sale $ 9 — — — — — — — — $ 9 Residential mortgage servicing rights $ 268 (36 ) (1) — 9 — — — — — $ 241 Total derivatives, net $ 13 32 (3) — — — — (32 ) — — $ 13 Nine Months Ended September 30, 2016 Opening Total Realized / Unrealized Gains or Losses Purchases Sales Issuances Settlements Transfers Transfers Closing Included in Earnings Included in Other Compre- hensive Income (Loss) (In millions) Level 3 Instruments Only Trading account securities $ 33 (2 ) (4) — — (31 ) — — — — $ — Securities available for sale: Residential non-agency MBS $ 5 — — — — — — — — $ 5 Corporate and other debt securities 3 — — — — — — — — 3 Total securities available for sale $ 8 — — — — — — — — $ 8 Commercial mortgage loans held for sale $ — — — — — 90 — — — $ 90 Residential mortgage servicing rights $ 252 (87 ) (1) — 73 — — — — — $ 238 Total derivatives, net $ 10 105 (5) — — — — (99 ) — — $ 16 Nine Months Ended September 30, 2015 Opening Total Realized / Unrealized Gains or Losses Purchases Sales Issuances Settlements Transfers into Level 3 Transfers out of Level 3 Closing Included in Earnings Included in Other Compre- hensive Income (Loss) (In millions) Level 3 Instruments Only Securities available for sale: Residential non-agency MBS $ 8 — — — — — (2 ) — — $ 6 Corporate and other debt securities 3 — — — — — — — — 3 Total securities available for sale $ 11 — — — — — (2 ) — — $ 9 Residential mortgage servicing rights $ 257 (44 ) (1) — 28 — — — — — $ 241 Total derivatives, net $ 8 85 (6) — — — — (80 ) — — $ 13 _________ (1) Included in mortgage income. (2) Approximately $3 million was included in capital markets fee income and other and $29 million was included in mortgage income. (3) Approximately $1 million was included in capital markets fee income and other and $31 million was included in mortgage income. (4) Included in capital markets fee income and other. (5) Approximately $16 million was included in capital markets fee income and other and $89 million was included in mortgage income. (6) Approximately $5 million was included in capital markets fee income and other and $80 million was included in mortgage income. The following table presents the fair value adjustments related to non-recurring fair value measurements: Three Months Ended September 30 Nine Months Ended September 30 2016 2015 2016 2015 (In millions) Loans held for sale $ (3 ) $ (5 ) $ (25 ) $ (16 ) Foreclosed property and other real estate (8 ) (9 ) (35 ) (56 ) The following tables present detailed information regarding assets and liabilities measured at fair value using significant unobservable inputs (Level 3) as of September 30, 2016 , and December 31, 2015 . 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 September 30, 2016 , and December 31, 2015 , are included. Following the tables are descriptions of the valuation techniques and the sensitivity of the techniques to changes in the significant unobservable inputs. September 30, 2016 Level 3 Valuation Technique Unobservable Input(s) Quantitative Range of Unobservable Inputs and (Weighted-Average) (Dollars in millions) Recurring fair value measurements: Securities available for sale: Residential non-agency MBS $5 Discounted cash flow Spread to LIBOR 5.5% - 70.0% (23.0%) Weighted-average prepayment speed (CPR; percentage) 3.8% - 27.2% (11.9%) Probability of default 3.4% Loss severity 55.9% Corporate and other debt securities $3 Market comparable Evaluated quote on same issuer/comparable bond 100.3% Commercial mortgage loans held for sale $90 Market comparable Credit spreads for bonds in the commercial MBS 0.4% - 6.0% (1.4%) Residential mortgage servicing rights (1) $238 Discounted cash flow Weighted-average prepayment speed (CPR; percentage) 10.4% - 28.8% (12.3%) OAS (percentage) 8.2% - 13.5% (10.6%) Derivative assets: Interest rate options $15 Interest rate lock commitments on the residential mortgage loans are valued using discounted cash flows Weighted-average prepayment speed (CPR; percentage) 10.4% - 28.8% (12.3%) OAS (percentage) 8.2% - 13.5% (10.6%) Pull-through 28.5% - 99.4% (77.6%) $1 Interest rate lock commitments on the commercial mortgage loans are valued using discounted cash flows Internal rate of return 7.0% - 17.0% (12.0%) Nonrecurring fair value measurements: Loans held for sale $11 Commercial loans held for sale are valued based on multiple data points, including discount to appraised value of collateral based on recent market activity for sales of similar loans Appraisal comparability adjustment (discount) 4.0% - 96.0% (56.2%) Foreclosed property and other real estate $8 Property in foreclosure is valued by discount to appraised value of property based on recent market activity for sales of similar properties Appraisal comparability adjustment (discount) 25.0% - 80.9% (54.0%) $4 Bank owned property valuations are based on comparable sales and local broker network estimates provided by a third-party real estate services provider Estimated third-party valuations utilizing available sales data for similar transactions (discount) 35.0% _________ (1) See Note 5 for additional disclosures related to assumptions used in the fair value calculation for residential mortgage servicing rights. December 31, 2015 Level 3 Valuation Technique Unobservable Input(s) Quantitative Range of Unobservable Inputs and (Weighted-Average) (Dollars in millions) Recurring fair value measurements: Trading account securities $33 Market comparable Spread from US High Yield B Effective Yield Index 4.7% Securities available for sale: Residential non-agency MBS $5 Discounted cash flow Spread to LIBOR 5.5% - 70.1% (23.0%) Weighted-average prepayment speed (CPR; percentage) 5.6% - 11.9% (9.9%) Probability of default 2.2% Loss severity 74.3% Corporate and other debt securities $3 Market comparable Evaluated quote on same issuer/comparable bond 100.2% Residential mortgage servicing rights (1) $252 Discounted cash flow Weighted-average prepayment speed (CPR; percentage) 10.5% - 11.5% (10.9%) OAS (percentage) 8.7% - 13.3% (10.0%) Derivative assets: Interest rate options $9 Interest rate lock commitments on the residential loans are valued using discounted cash flows Weighted-average prepayment speed (CPR; percentage) 10.5% - 11.5% (10.9%) OAS (percentage) 8.7% - 13.3% (10.0%) Pull-through 18.9% - 99.4% (80.7%) $1 Interest rate lock commitments on the commercial mortgage loans are valued using discounted cash flows Internal rate of return 12.0% Nonrecurring fair value measurements: Loans held for sale $36 Commercial loans held for sale are valued based on multiple data points, including discount to appraised value of collateral based on recent market activity for sales of similar loans Appraisal comparability adjustment (discount) 11.1% - 85.7% (69.0%) Foreclosed property and other real estate $5 Property in foreclosure is valued by discount to appraised value of property based on recent market activity for sales of similar properties Appraisal comparability adjustment (discount) 25.0% - 44.0% (30.3%) $3 Bank owned property valuations are based on comparable sales and local broker network estimates provided by a third-party real estate services provider Estimated third-party valuations utilizing available sales data for similar transactions (discount) 3.0% - 58.8% (39.2%) _________ (1) See Note 7 to the consolidated financial statements of the Annual Report on Form 10-K for the year ended December 31, 2015 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 Trading account securities The fair value in this category relates to high yield corporate securities. Significant unobservable inputs include the spread to High Yield Index. A significant increase in this input would result in a significantly lower fair value measurement. Securities available for sale Mortgage-backed securities: residential non-agency —The fair value reported in this category relates to retained interests in legacy securitizations. Significant unobservable inputs include the spread to LIBOR, CPR, probability of default, and loss severity in the event of default. Significant increases in spread to LIBOR, probability of default and loss given default in isolation would result in significantly lower fair value. A significant increase in CPR in isolation would result in an increase to fair value. Corporate and other debt securities —Significant unobservable inputs include evaluated quotes on comparable bonds for the same issuer and management-determined comparability adjustments. Changes in the evaluated quote on comparable bonds would result in a directionally similar change in the fair value of the corporate and other debt securities. Commercial mortgage loans held for sale Commercial mortgage loans held for sale are based on traded market prices for comparable commercial mortgage-backed securitizations, into which the loans will be placed, adjusted for movements of interest rates and credit spreads. Significant unobservable inputs include credit spreads for bonds in commercial mortgage-backed securitizations. Residential mortgage servicing rights The significant unobservable inputs used in the fair value measurement of residential MSRs are OAS and prepayment speed. 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 such as 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. Derivative assets Residential mortgage interest rate options —These instruments are interest rate lock agreements made in the normal course of originating residential mortgage loans. Significant unobservable inputs in the fair value measurement are OAS, prepayment speeds, and pull-through. The impact of OAS and prepayment speed inputs in the valuation of these derivative instruments are consistent with the MSR discussion above. Pull-through is an estimate of the number of interest rate lock commitments that will ultimately become funded loans. Increases or decreases in the pull-through assumption will have a corresponding impact on the value of these derivative assets. Commercial mortgage interest rate options —These instruments are interest rate lock agreements made in the normal course of originating commercial mortgage loans. The significant unobservable input in the fair value measurement using discounted cash flows is the internal rate of return. The Company's internal rates of return are compared against those of market competitors, and should those rates change the Company's rates would also change in a similar direction. NON-RECURRING FAIR VALUE MEASUREMENTS USING SIGNIFICANT UNOBSERVABLE INPUTS Loans held for sale Commercial loans held for sale are valued based on multiple data points indicating the fair value for each loan. The primary data point for loans held for sale is a discount to the appraised value of the underlying collateral, which considers the return required by potential buyers of the loans. Management establishes this discount or comparability adjustment based on recent sales of loans secured by similar property types. As liquidity in the market increases or decreases, the comparability adjustment and the resulting asset valuation are impacted. These non-recurring fair value measurements are typically recorded on the date an updated appraisal is received. Foreclosed property and other real estate Property in foreclosure is valued based on offered quotes as available. If no sales contract is pending for a specific property, management establishes a comparability adjustment to the appraised value based on historical activity considering proceeds for properties sold versus the corresponding appraised value. Increases or decreases in realization for properties sold impact the comparability adjustment for similar assets remaining on the balance sheet. These non-recurring fair value measurements are typically recorded on the date an updated offered quote or appraisal is received. Bank owned property available for sale is valued based on estimated third-party valuations utilizing recent sales data from similar transactions. A broker's opinion of value is obtained to further support the asset valuations. Updated valuations along with actual sales results of similar properties can further impact these values. These non-recurring fair value measurements are typically recorded on the date an updated third-party valuation is received. 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. Fair values of commercial mortgage loans held for sale are based on traded market prices for comparable commercial mortgage-backed securitizations, into which the loans will be placed, adjusted for movements of interest rates and credit spreads. 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: September 30, 2016 December 31, 2015 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 $ 549 $ 529 $ 20 $ 353 $ 341 $ 12 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 (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 and nine months ended September 30, 2016 and 2015 . 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. Mortgage loans held for sale, at fair value Three Months Ended September 30 Nine Months Ended September 30 2016 2015 2016 2015 (In millions) Net gains (losses) resulting from changes in fair value $ — $ 8 $ 9 $ — 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 September 30, 2016 are as follows: September 30, 2016 Carrying Amount Estimated Fair Value (1) Level 1 Level 2 Level 3 (In millions) Financial assets: Cash and cash equivalents $ 4,238 $ 4,238 $ 4,238 $ — $ — Trading account securities 120 120 120 — — Securities held to maturity 1,431 1,485 — 1,485 — Securities available for sale 23,859 23,859 422 23,429 8 Loans held for sale 571 549 — 459 90 Loans (excluding leases), net of unearned income and allowance for loan losses (2)(3) 78,821 74,713 — — 74,713 Other earning assets (4) 771 771 — 771 — Derivative assets 855 855 4 835 16 Financial liabilities: Derivative liabilities 792 792 — 792 — Deposits 99,289 99,375 — 99,375 — Short-term borrowings — — — — — Long-term borrowings 6,054 6,369 — 4,102 2,267 Loan commitments and letters of credit 105 512 — — 512 Indemnification obligation 32 30 — — 30 _________ (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 makes adjustments for interest rates, market liquidity and credit spreads as appropriate. (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 at September 30, 2016 was $4.1 billion or 5.2 percent. (3) Excluded from this table is the capital lease carrying amount of $936 million at September 30, 2016 . (4) Excluded from this table is the operating lease carrying amount of $ 734 million at September 30, 2016 . 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, 2015 are as follows: December 31, 2015 Carrying Amount Estimated Fair Value (1) Level 1 Level 2 Level 3 (In millions) Financial assets: Cash and cash equivalents $ 5,314 $ 5,314 $ 5,314 $ — $ — Trading account securities 143 143 110 — 33 Securities held to maturity 1,946 1,969 1 1,968 — Securities available for sale 22,710 22,710 508 22,194 8 Loans held for sale 448 448 — 353 95 Loans (excluding leases), net of unearned income and allowance for loan losses (2)(3) 79,140 75,399 — — 75,399 Other earning assets (4) 818 818 — 818 — Derivative assets 826 826 — 816 10 Financial liabilities: Derivative liabilities 758 758 — 758 — Deposits 98,430 98,464 — 98,464 — Short-term borrowings 10 10 — 10 — Long-term borrowings 8,349 8,615 — 5,775 2,840 Loan commitments and letters of credit 85 495 — — 495 Indemnification obligation 77 67 — — 67 _________ (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 makes adjustments for interest rates, market liquidity and credit spreads as appropriate. (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 at December 31, 2015 was $3.7 billion or 4.7 percent. (3) Excluded from this table is the capital lease carrying amount of $916 million at December 31, 2015 . (4) Excluded from this table is the operating lease carrying amount of $834 million at December 31, 2015 .

Business Segment Information

Business Segment Information	9 Months Ended
	Sep. 30, 2016
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. During the first quarter of 2016, Regions reorganized its internal management structure and, accordingly, its segment reporting structure. Under the organizational realignment, Regions will continue to operate with the same three reporting units with the Relationship Management component of Business Banking moving to the Corporate Bank and the Branch Small Business component of Business Banking remaining part of the Consumer Bank. Previously, all of Business Banking was included within the Consumer Bank. The Wealth Management segment remained unchanged during the organizational realignment. Additionally, in prior years the provision for loan losses was allocated to each segment based on actual net charge-offs that had been recognized by the segment. During the first quarter of 2016, Regions began allocating the provision for loan losses to each segment using an estimated loss methodology with the difference between the consolidated provision for loan losses and the segments’ estimated loss reflected in Other. Lastly, allocations of operational and overhead cost pools among the segments were modified during the first quarter of 2016 to better align the total costs to support each segment in accordance with the reorganized management structure. Segment results for all periods presented have been recast to reflect this organizational realignment, as well as the provision for loan losses methodology change and the cost allocation modifications. Additional information about the Company's reportable segments is included in Regions' Annual Report on Form 10-K for the year ended December 31, 2015. 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. The following tables present financial information for each reportable segment for the period indicated. Three Months Ended September 30, 2016 Corporate Bank Consumer Bank Wealth Management Other Continuing Operations Discontinued Operations Consolidated (In millions) Net interest income and other financing income (loss) $ 352 $ 514 $ 43 $ (74 ) $ 835 $ — $ 835 Provision (credit) for loan losses 72 74 5 (122 ) 29 — 29 Non-interest income 130 291 107 71 599 — 599 Non-interest expense 220 532 120 62 934 (2 ) 932 Income (loss) before income taxes 190 199 25 57 471 2 473 Income tax expense (benefit) 72 76 10 (6 ) 152 1 153 Net income (loss) $ 118 $ 123 $ 15 $ 63 $ 319 $ 1 $ 320 Average assets $ 53,798 $ 34,843 $ 3,233 $ 33,955 $ 125,829 $ — $ 125,829 Three Months Ended September 30, 2015 Corporate Bank Consumer Bank Wealth Management Other Continuing Operations Discontinued Operations Consolidated (In millions) Net interest income and other financing income (loss) $ 385 $ 507 $ 41 $ (97 ) $ 836 $ — $ 836 Provision (credit) for loan losses 77 70 6 (93 ) 60 — 60 Non-interest income 112 272 104 9 497 — 497 Non-interest expense 226 522 115 32 895 6 901 Income (loss) before income taxes 194 187 24 (27 ) 378 (6 ) 372 Income tax expense (benefit) 74 71 9 (38 ) 116 (2 ) 114 Net income (loss) $ 120 $ 116 $ 15 $ 11 $ 262 $ (4 ) $ 258 Average assets $ 53,647 $ 33,710 $ 3,161 $ 32,402 $ 122,920 $ — $ 122,920 Nine Months Ended September 30, 2016 Corporate Bank Consumer Bank Wealth Management Other Continuing Operations Discontinued Operations Consolidated (In millions) Net interest income and other financing income (loss) $ 1,087 $ 1,529 $ 131 $ (202 ) $ 2,545 $ — $ 2,545 Provision (credit) for loan losses 216 215 17 (234 ) 214 — 214 Non-interest income 380 831 321 99 1,631 — 1,631 Non-interest expense 645 1,552 350 171 2,718 (7 ) 2,711 Income (loss) before income taxes 606 593 85 (40 ) 1,244 7 1,251 Income tax expense (benefit) 230 225 33 (108 ) 380 3 383 Net income (loss) $ 376 $ 368 $ 52 $ 68 $ 864 $ 4 $ 868 Average assets $ 54,420 $ 34,373 $ 3,235 $ 33,706 $ 125,734 $ — $ 125,734 Nine Months Ended September 30, 2015 Corporate Bank Consumer Bank Wealth Management Other Continuing Operations Discontinued Operations Consolidated (In millions) Net interest income and other financing income (loss) $ 1,141 $ 1,510 $ 125 $ (305 ) $ 2,471 $ — $ 2,471 Provision (credit) for loan losses 225 206 17 (276 ) 172 — 172 Non-interest income 318 806 303 130 1,557 — 1,557 Non-interest expense 662 1,547 335 190 2,734 16 2,750 Income (loss) before income taxes 572 563 76 (89 ) 1,122 (16 ) 1,106 Income tax expense (benefit) 218 214 29 (126 ) 335 (6 ) 329 Net income (loss) $ 354 $ 349 $ 47 $ 37 $ 787 $ (10 ) $ 777 Average assets $ 53,016 $ 33,288 $ 3,150 $ 32,008 $ 121,462 $ — $ 121,462

Commitments, Contingencies and

Commitments, Contingencies and Guarantees	9 Months Ended
	Sep. 30, 2016
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: September 30, 2016 December 31, 2015 (In millions) Unused commitments to extend credit $ 44,330 $ 45,516 Standby letters of credit 1,423 1,477 Commercial letters of credit 88 63 Liabilities associated with standby letters of credit 33 32 Assets associated with standby letters of credit 33 33 Reserve for unfunded credit commitments 72 52 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, as previously discussed, 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. The indemnification obligation had a carrying amount of approximately $32 million and an estimated fair value of approximately $30 million as of September 30, 2016 (see Note 12). 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. Beginning in December 2007, Regions and certain of its affiliates were named in class-action lawsuits filed in federal and state courts on behalf of investors who purchased shares of certain Regions Morgan Keegan Select Funds (the “Funds”) and stockholders of Regions. These class-action lawsuits have all been resolved among the parties. Final court approvals for settlements in the open-end Funds class action and for the investors represented by the Trustee Ad Litem have been granted. Certain of the shareholders in these Funds and other interested parties have entered into arbitration proceedings and individual civil claims, in lieu of participating in the class actions. These lawsuits and proceedings are subject to the indemnification agreement with Raymond James discussed above. 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 have filed an appeal. Oral argument was held on October 17, 2016. This matter is subject to the indemnification agreement with Raymond James. A previously dismissed shareholder derivative action was refiled in June 2015. The original action alleged mismanagement, waste of corporate assets, breach of fiduciary duty and unjust enrichment relating to bonuses and other benefits received by executive management. The named defendants filed an opposition to the action, and on April 5, 2016, the court dismissed the action with prejudice. On May 5, 2016, plaintiffs filed a motion asking the court to reconsider the dismissal, which was denied by the court on June 24, 2016. The plaintiffs filed an appeal with the Alabama Supreme Court, which dismissed the appeal on October 14, 2016. 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 entered into a final Settlement Agreement, dated September 13, 2016, with the Department of Justice on behalf of HUD to settle and fully release previously disclosed potential claims related to Regions Bank’s underwriting and origination of FHA insured mortgage loans endorsed for FHA insurance between January 1, 2006 and December 31, 2011 that resulted in claims submitted through January 7, 2015. Regions had previously disclosed that it had reached an agreement in principle with the Department of Justice relating to this matter. Regions settled this matter for $52.4 million , without admitting liability, in order to avoid the expense and distraction of potential litigation. Regions was fully reserved for the entire settlement amount as of the end of the second quarter of 2016. Further, Regions’ insurers reimbursed Regions approximately $47 million of such amount, which was recognized within non-interest income in the third quarter of 2016. In September 2014, Regions received an investigative request from the Office of Inspector General of the Federal Housing Finance Agency regarding its residential mortgage loan origination, underwriting and quality control practices for loans Regions sold to Fannie Mae and Freddie Mac. Regions has fully cooperated with the inquiry, which is part of an industry-wide investigation. 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. However, Regions expects the majority of ongoing legal matters to be resolved within approximately one to two years. As of the Closing Date, the fair value of the indemnification obligation, which includes defense costs and unasserted claims, was approximately $385 million , of which approximately $256 million was recognized as a reduction to the gain on sale of Morgan Keegan. The fair value was determined through the use of a present value calculation that takes into account the future cash flows that a market participant would expect to receive from holding the indemnification liability as an asset. Regions performed a probability-weighted cash flow analysis and discounted the result at a credit-adjusted risk free rate. The fair value of the indemnification liability includes amounts that Regions had previously determined meet the definition of probable and reasonably estimable. Adjustments to the indemnification obligation are recorded within professional and legal expenses within discontinued operations (see Note 2). As of September 30, 2016 , the carrying value of the indemnification obligation was approximately $32 million . FANNIE MAE DUS LOSS SHARE GUARANTEE Regions is a Fannie Mae DUS lender. The Fannie Mae 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 September 30, 2016 , and December 31, 2015 , the Company's DUS servicing portfolio totaled approximately $1.7 billion and $1.2 billion , respectively. Regions' maximum quantifiable contingent liability related to its loss share guarantee was approximately $516 million and $356 million at September 30, 2016 and December 31, 2015 , 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 $3 million at both September 30, 2016 and December 31, 2015 . 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, 2015, for additional information.

Recent Accounting Pronouncement

Recent Accounting Pronouncements	9 Months Ended
	Sep. 30, 2016
New Accounting Pronouncements and Changes in Accounting Principles [Abstract]
Recent Accounting Pronouncements	RECENT ACCOUNTING PRONOUNCEMENTS In August 2015, the FASB issued a standard that defers the effective date of the new revenue recognition standard, issued in May 2014, by one year. The new revenue recognition standard is discussed in the Annual Report on Form 10-K for the year ended December 31, 2014. The new guidance is effective for annual reporting periods beginning after December 15, 2017, including interim periods within that reporting period. Early adoption is permitted as of the date of the original effective date, for annual reporting periods beginning after December 15, 2016, including interim periods within that reporting period. Regions is in the process of reviewing the potential impact the adoption of this guidance will have to its consolidated financial statements. In January 2016, the FASB issued accounting guidance on the recognition and measurement of financial assets and financial liabilities that supersedes existing guidance. The new guidance: (a) requires equity investments (except for those accounted for under the equity method of accounting or those that result in consolidation of the investee) to be measured at fair value with changes in the fair value recognized through net income; (b) simplifies the impairment assessment of equity securities without readily determinable fair values by requiring a qualitative assessment to identify impairment; (c) eliminates the requirement for public business entities to disclose the method and significant assumptions used to estimate the fair value that is required to be disclosed for financial instruments measured at amortized cost on the balance sheet; (d) requires public business entities to use the exit price notion when measuring the fair value of financial instruments for disclosure purposes; (e) requires an entity to present separately in other comprehensive income, the portion of the total change in the fair value of a liability resulting from a change in the instrument-specific credit risk when the entity has elected to measure the liability at fair value in accordance with the fair value option for financial instruments; (f) requires separate presentation of financial assets and financial liabilities by measurement category and form of financial assets on the balance sheet or the notes to the financial statements; and (g) clarifies that an entity should evaluate the need for a valuation allowance on a deferred tax asset related to available for sale securities in combination with the entity’s other deferred tax assets. This guidance is effective for annual and interim periods beginning after December 15, 2017. Early adoption is not permitted except for the amendment related to separate presentation in other comprehensive income discussed above in (e). Entities should apply the amendments by means of cumulative-effect adjustment to the balance sheet as of the beginning of the fiscal year of adoption. The amendments related to equity securities without readily determinable fair values (including disclosure requirements) should be applied prospectively to equity investments that exist as of the date of adoption. Regions is evaluating the impact to its consolidated financial statements upon adoption. In February 2016, the FASB issued accounting guidance intended to improve the understanding and comparability of financial statements by providing users with more information relating primarily to a lessee’s leasing activities. There are no significant changes expected to the income statement but lessees will be required 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. Management will also be required under the new guidance to make significant judgments regarding the likelihood of exercising lease renewal or extension options in order to determine the appropriate lease term and amount of future minimum lease payments. While the new guidance removes the current bright lines used to classify leases, the criteria are largely similar to current lease accounting. Additionally, the new standard substantially changes sale-leaseback accounting requiring the lessee to record a right-of-use asset and aligning sale criteria with revenue recognition guidance. This guidance expands both quantitative and qualitative required disclosures in order to provide financial statement users information on the timing, amount, and uncertainty of future cash flows from leases. The revised leasing guidance is effective for fiscal years and interim periods beginning after December 15, 2018, with early application permitted. Regions is evaluating the impact to its consolidated financial statements upon adoption. In March 2016, the FASB issued accounting guidance that clarifies and enhances the implementation guidance on principal versus agent considerations within the new revenue recognition standard. The amendments are as follows: (a) clarification regarding how an entity should identify the unit of accounting for the principal versus agent evaluation; (b) clarification regarding how the control principle applies to transactions such as service arrangements; (c) control indicators reframed to focus on evidence of a principal relationship rather than an agency relationship, as well as clarification added regarding the relationship between the control principle and the indicators; and (d) revisions to the examples presented in current guidance as well as the addition of new examples. The guidance is effective for annual and interim periods beginning after December 15, 2017. Regions is evaluating the impact to its consolidated financial statements upon adoption. In March 2016, the FASB issued new accounting guidance that addresses how a change in the counterparty to a derivative contract affects a hedging relationship. This guidance clarifies that a novation (defined as replacing one counterparty to a derivative instrument with a new counterparty) of a derivative contract does not, in and of itself, require dedesignation of a hedging relationship or represent a change in the critical terms of the hedge relationship so long as (a) all other hedge accounting criteria are still met, (b) the hedging relationship is expected to remain highly effective, and (c) there are no concerns about the collectability of the derivative’s cash flows (i.e. the creditworthiness of the new counterparty is similar to the one being replaced). The guidance is effective for annual and interim periods beginning after December 15, 2016. The amendments may be applied prospectively or on a modified retrospective basis to all existing and new hedge accounting relationships in which a novation occurs after the effective date of the new guidance. Regions believes the adoption of this guidance will not have a material impact to its consolidated financial statements. In March 2016, the FASB issued new accounting guidance that clarifies that entities should solely use the four-step decision sequence described in current derivatives accounting guidance. This sequence should be used when assessing whether contingent exercise provisions associated with a put or call option are clearly and closely related to their debt hosts. Based on differences in interpretation, some entities have also included an additional assessment that considers whether the event that triggers the ability to exercise the put or call is indexed only to interest rates or credit risk of the entity. This additional assessment potentially results in bifurcation of more embedded options than would occur when solely applying the decision sequence outlined in the guidance. This guidance should be applied to existing debt instruments on a modified retrospective basis and is effective for annual, and interim periods therein, beginning after December 15, 2016. Regions believes the adoption of this guidance will not have a material impact to its consolidated financial statements. In March 2016, the FASB issued new accounting guidance that eliminates the requirement for an investor to retrospectively apply the equity method to investments when its ownership interest (or degree of influence in an investee) increases to a level that triggers the equity method of accounting. Currently, an entity must retrospectively adjust the investment, results of operations, and retained earnings as if the equity method had been in effect during all previous periods the investment was held. By eliminating this requirement, the FASB expects to reduce the cost and complexity when transitioning to the equity method. The guidance is effective for annual and interim periods beginning after December 15, 2016. Early adoption is permitted. Regions believes the adoption of this guidance will not have a material impact to its consolidated financial statements. In March 2016, the FASB issued new accounting guidance that intends to improve and simplify accounting for employee shared-based payments. The new guidance: (a) eliminates additional paid-in capital pools and designates that all excess tax benefits and deficiencies should be recorded in the income statement as income tax expense or benefit when the awards vest or are settled; entities should account for these income tax effects as discrete items in the reporting period in which they occur and exclude them from the estimated annual effective tax rate; (b) increases the permitted tax withholding limits from the employer’s statutory minimum rate to the employee’s maximum statutory rate before triggering liability classification; (c) changes the classification of excess tax benefits from a financing activity to an operating activity; (d) clarifies that cash paid to a tax authority when shares are withheld to satisfy an employer’s statutory income tax withholding obligation is a financing activity; (e) allows an entity to make an entity-wide accounting policy election to either account for forfeitures based on the number of awards that are expected to vest or account for forfeitures as they occur. The guidance is effective for interim and annual periods beginning after December 31, 2016. The transition method of accounting application (i.e. prospective, retrospective or modified retrospective application) differs by amendment and is defined in the guidance. Early adoption is permitted, but entities must adopt all of the guidance in the same period. Regions is not early adopting and believes the adoption of this guidance will not have a material impact to its consolidated financial statements. In April 2016, the FASB issued new accounting guidance for revenue recognition that is related to contracts with customers. This guidance is expected to clarify how an entity should evaluate revenue in circumstances regarding granting licenses of intellectual property. The guidance also includes information regarding identifying differences when dealing with promised goods and services. The guidance is effective for annual and interim periods beginning after December 15, 2017. Regions is evaluating the impact to its consolidated financial statements upon adoption. In May 2016, the FASB issued additional new accounting guidance for revenue recognition that is also related to contracts with customers. This guidance, as well as the guidance issued in April 2016, is intended to promote more consistent application of the standards as well as reduce the cost and complexity of applying the revenue guidance. The guidance contains amendments related to collectability, noncash consideration, and completed contracts at transition. The guidance is effective for annual and interim periods beginning after December 15, 2017. Regions is evaluating the impact to its consolidated financial statements upon adoption. In June 2016, the FASB issued new accounting guidance regarding the measurement of credit losses on financial instruments. The new guidance will apply to most financial assets measured at amortized cost and certain other instruments including loans, debt securities held to maturity, net investments in leases and off-balance-sheet credit exposures (e.g., loan commitments, standby letters of credit, etc.). The guidance will replace the current incurred loss accounting model with an expected loss approach, whereby entities must consider all available relevant information when estimating those expected credit losses, including details about past events, current conditions and reasonable and supportable forecasts. The guidance eliminates the current accounting model for purchased credit impaired loans and debt securities. Regarding securities available for sale, credit losses are to be recognized as allowances rather than reductions in the amortized cost of the securities, which will require remeasurement of the related allowance at each reporting period. The guidance includes enhanced disclosure requirements intended to help financial statement users better understand estimates and judgments used in estimating credit losses. The guidance is effective for annual and interim periods beginning after December 15, 2019. However, entities can apply these amendments as early as fiscal years beginning after December 15, 2018. Regions is evaluating the impact to its consolidated financial statements upon adoption. In August 2016, the FASB issued new accounting guidance regarding the classification and presentation of certain cash receipts and cash payments. The guidance makes targeted improvements where current guidance is either unclear or silent in order to reduce areas where diversity in practice exists with respect to classification within the statement of cash flows. Specifically, clarification on classification and presentation of the following cash receipts and payments is addressed: (a) cash payments made in connection with settling a debt arrangement before its maturity date and related debt extinguishment costs; (b) cash payments made at maturity of a zero-coupon debt instrument; (c) cash payments made to settle a contingent consideration liability arising from a business combination that are not made within a relatively short time period after the acquisition date; (d) cash proceeds received from the settlement of insurance claims, including lump-sum settlements; (e) cash proceeds received from the settlement of corporate-owned or bank-owned life insurance policies, as well as premiums paid on these policies; (f) distributions received from equity method investees not accounted for under the fair value option and; (g) treatment of a transferor’s beneficial interest obtained in a financial asset securitization. The guidance also clarifies the application of the predominance principle when cash receipts or payments have separately identifiable cash flows. The guidance should be applied on a retrospective basis, unless impracticable, for periods beginning after December 15, 2017. Early adoption is permitted, including in an interim period, given all amendments are adopted in the same period. Regions is evaluating the impact to its consolidated financial statements upon adoption.

Discontinued Operations (Tables

Discontinued Operations (Tables)	9 Months Ended
	Sep. 30, 2016
Discontinued Operations and Disposal Groups [Abstract]
Schedule of Disposal Groups, Including Discontinued Operations, Income Statement, Balance Sheet and Additional Disclosures	The following table represents the condensed results of operations for discontinued operations: Three Months Ended September 30 Nine Months Ended September 30 2016 2015 2016 2015 (In millions, except per share data) Non-interest expense: Professional and legal expenses/(recoveries) $ (2 ) $ 7 $ (8 ) $ 16 Other — (1 ) 1 — Total non-interest expense (2 ) 6 (7 ) 16 Income (loss) from discontinued operations before income taxes 2 (6 ) 7 (16 ) Income tax expense (benefit) 1 (2 ) 3 (6 ) Income (loss) from discontinued operations, net of tax $ 1 $ (4 ) $ 4 $ (10 ) Earnings (loss) per common share from discontinued operations: Basic $ 0.00 $ (0.00 ) $ 0.00 $ (0.01 ) Diluted $ 0.00 $ (0.00 ) $ 0.00 $ (0.01 )

Securities (Tables)

Securities (Tables)	9 Months Ended
	Sep. 30, 2016
Investments, Debt and Equity Securities [Abstract]
Schedule Of Amortized Cost And Estimated Fair Value Of Securities Held To Maturity	The amortized cost, gross unrealized gains and losses, and estimated fair value of securities held to maturity and securities available for sale are as follows: September 30, 2016 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) Securities held to maturity: Mortgage-backed securities: Residential agency $ 1,316 — (52 ) 1,264 53 — $ 1,317 Commercial agency 171 — (4 ) 167 1 — 168 $ 1,487 $ — $ (56 ) $ 1,431 $ 54 $ — $ 1,485 Securities available for sale: U.S. Treasury securities $ 237 $ 5 $ — $ 242 $ 242 Federal agency securities 37 1 — 38 38 Mortgage-backed securities: Residential agency 17,189 328 (11 ) 17,506 17,506 Residential non-agency 4 1 — 5 5 Commercial agency 3,333 81 (1 ) 3,413 3,413 Commercial non-agency 1,125 19 (3 ) 1,141 1,141 Corporate and other debt securities 1,304 47 (17 ) 1,334 1,334 Equity securities 170 10 — 180 180 $ 23,399 $ 492 $ (32 ) $ 23,859 $ 23,859 December 31, 2015 Recognized in OCI (1) Not Recognized in OCI Amortized Gross Unrealized Gains Gross Unrealized Losses Carrying Value Gross Gross Estimated (In millions) Securities held to maturity: U.S. Treasury securities $ 1 $ — $ — $ 1 $ — $ — $ 1 Federal agency securities 350 — (10 ) 340 9 — 349 Mortgage-backed securities: Residential agency 1,490 — (61 ) 1,429 18 (2 ) 1,445 Commercial agency 181 — (5 ) 176 — (2 ) 174 $ 2,022 $ — $ (76 ) $ 1,946 $ 27 $ (4 ) $ 1,969 Securities available for sale: U.S. Treasury securities $ 228 $ 1 $ (1 ) $ 228 $ 228 Federal agency securities 219 — (1 ) 218 218 Obligations of states and political subdivisions 1 — — 1 1 Mortgage-backed securities: Residential agency 16,003 149 (90 ) 16,062 16,062 Residential non-agency 5 — — 5 5 Commercial agency 3,033 10 (25 ) 3,018 3,018 Commercial non-agency 1,245 3 (17 ) 1,231 1,231 Corporate and other debt securities 1,718 12 (63 ) 1,667 1,667 Equity securities 272 10 (2 ) 280 280 $ 22,724 $ 185 $ (199 ) $ 22,710 $ 22,710 _________ (1) The gross unrealized losses recognized in other comprehensive income (OCI) on held to maturity securities resulted from a transfer of available for sale securities to held to maturity in the second quarter of 2013.
Schedule Of Amortized Cost And Estimated Fair Value Of Available For Sale Securities	The amortized cost, gross unrealized gains and losses, and estimated fair value of securities held to maturity and securities available for sale are as follows: September 30, 2016 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) Securities held to maturity: Mortgage-backed securities: Residential agency $ 1,316 — (52 ) 1,264 53 — $ 1,317 Commercial agency 171 — (4 ) 167 1 — 168 $ 1,487 $ — $ (56 ) $ 1,431 $ 54 $ — $ 1,485 Securities available for sale: U.S. Treasury securities $ 237 $ 5 $ — $ 242 $ 242 Federal agency securities 37 1 — 38 38 Mortgage-backed securities: Residential agency 17,189 328 (11 ) 17,506 17,506 Residential non-agency 4 1 — 5 5 Commercial agency 3,333 81 (1 ) 3,413 3,413 Commercial non-agency 1,125 19 (3 ) 1,141 1,141 Corporate and other debt securities 1,304 47 (17 ) 1,334 1,334 Equity securities 170 10 — 180 180 $ 23,399 $ 492 $ (32 ) $ 23,859 $ 23,859 December 31, 2015 Recognized in OCI (1) Not Recognized in OCI Amortized Gross Unrealized Gains Gross Unrealized Losses Carrying Value Gross Gross Estimated (In millions) Securities held to maturity: U.S. Treasury securities $ 1 $ — $ — $ 1 $ — $ — $ 1 Federal agency securities 350 — (10 ) 340 9 — 349 Mortgage-backed securities: Residential agency 1,490 — (61 ) 1,429 18 (2 ) 1,445 Commercial agency 181 — (5 ) 176 — (2 ) 174 $ 2,022 $ — $ (76 ) $ 1,946 $ 27 $ (4 ) $ 1,969 Securities available for sale: U.S. Treasury securities $ 228 $ 1 $ (1 ) $ 228 $ 228 Federal agency securities 219 — (1 ) 218 218 Obligations of states and political subdivisions 1 — — 1 1 Mortgage-backed securities: Residential agency 16,003 149 (90 ) 16,062 16,062 Residential non-agency 5 — — 5 5 Commercial agency 3,033 10 (25 ) 3,018 3,018 Commercial non-agency 1,245 3 (17 ) 1,231 1,231 Corporate and other debt securities 1,718 12 (63 ) 1,667 1,667 Equity securities 272 10 (2 ) 280 280 $ 22,724 $ 185 $ (199 ) $ 22,710 $ 22,710 _________ (1) The gross unrealized losses recognized in other comprehensive income (OCI) on held to maturity securities resulted from a transfer of available for sale securities to held to maturity in the second quarter of 2013.
Schedule Of Cost And Estimated Fair Value Of Securities Available For Sale And Securities Held To Maturity By Contractual Maturity	The amortized cost and estimated fair value of securities available for sale and securities held to maturity at September 30, 2016 , 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) Securities held to maturity: Mortgage-backed securities: Residential agency $ 1,316 $ 1,317 Commercial agency 171 168 $ 1,487 $ 1,485 Securities available for sale: Due in one year or less $ 52 $ 52 Due after one year through five years 463 475 Due after five years through ten years 808 836 Due after ten years 255 251 Mortgage-backed securities: Residential agency 17,189 17,506 Residential non-agency 4 5 Commercial agency 3,333 3,413 Commercial non-agency 1,125 1,141 Equity securities 170 180 $ 23,399 $ 23,859
Schedule Of Gross Unrealized Losses And Estimated Fair Value Of Securities Available For Sale and Held to Maturity	The following tables present gross unrealized losses and the related estimated fair value of securities available for sale and held to maturity at September 30, 2016 and December 31, 2015 . For 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. September 30, 2016 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) Securities held to maturity: Mortgage-backed securities: Residential agency $ — $ — $ 388 $ (4 ) $ 388 $ (4 ) Commercial agency — — 169 (3 ) 169 (3 ) $ — $ — $ 557 $ (7 ) $ 557 $ (7 ) Securities available for sale: U.S. Treasury securities $ 4 $ — $ 2 $ — $ 6 $ — Federal agency securities — — 2 — 2 — Mortgage-backed securities: Residential agency 1,491 (4 ) 604 (7 ) 2,095 (11 ) Residential non-agency 3 — — — 3 — Commercial agency 282 (1 ) 46 — 328 (1 ) Commercial non-agency 94 (1 ) 245 (2 ) 339 (3 ) All other securities 23 — 253 (17 ) 276 (17 ) $ 1,897 $ (6 ) $ 1,152 $ (26 ) $ 3,049 $ (32 ) December 31, 2015 Less Than Twelve Months Twelve Months or More Total Estimated Gross Estimated Gross Estimated Gross (In millions) Securities held to maturity: Federal agency securities $ 198 $ (1 ) $ — $ — $ 198 $ (1 ) Mortgage-backed securities: Residential agency 322 (7 ) 1,121 (38 ) 1,443 (45 ) Commercial agency — — 174 (7 ) 174 (7 ) $ 520 $ (8 ) $ 1,295 $ (45 ) $ 1,815 $ (53 ) Securities available for sale: U.S. Treasury securities $ 59 $ (1 ) $ 8 $ — $ 67 $ (1 ) Federal agency securities 74 — 7 — 81 — Mortgage-backed securities: Residential agency 8,037 (73 ) 791 (17 ) 8,828 (90 ) Residential non-agency 3 — — — 3 — Commercial agency 1,695 (20 ) 273 (5 ) 1,968 (25 ) Commercial non-agency 684 (12 ) 264 (6 ) 948 (18 ) All other securities 805 (36 ) 307 (29 ) 1,112 (65 ) $ 11,357 $ (142 ) $ 1,650 $ (57 ) $ 13,007 $ (199 )
Schedule Of Gross Realized Gains And Gross Realized Losses On Available For Sale Securities	Three Months Ended September 30 Nine Months Ended September 30 2016 2015 2016 2015 (In millions) Gross realized gains $ 1 $ 15 $ 30 $ 29 Gross realized losses (1 ) (2 ) (28 ) (5 ) OTTI — (6 ) (1 ) (6 ) Securities gains (losses), net $ — $ 7 $ 1 $ 18

Loans and the Allowance for C27

Loans and the Allowance for Credit Losses (Tables)	9 Months Ended
	Sep. 30, 2016
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: September 30, 2016 December 31, 2015 (In millions, net of unearned income) Commercial and industrial $ 35,388 $ 35,821 Commercial real estate mortgage—owner-occupied 7,007 7,538 Commercial real estate construction—owner-occupied 349 423 Total commercial 42,744 43,782 Commercial investor real estate mortgage 4,306 4,255 Commercial investor real estate construction 2,458 2,692 Total investor real estate 6,764 6,947 Residential first mortgage 13,402 12,811 Home equity 10,749 10,978 Indirect—vehicles 4,076 3,984 Indirect—other consumer 838 545 Consumer credit card 1,123 1,075 Other consumer 1,187 1,040 Total consumer 31,375 30,433 $ 80,883 $ 81,162
Analysis of the Allowance for Credit Losses by Portfolio Segment	Three Months Ended September 30, 2016 Commercial Investor Real Estate Consumer Total (In millions) Allowance for loan losses, July 1, 2016 $ 825 $ 87 $ 239 $ 1,151 Provision (credit) for loan losses (15 ) (7 ) 51 29 Loan losses: Charge-offs (31 ) (1 ) (62 ) (94 ) Recoveries 19 5 16 40 Net loan losses (12 ) 4 (46 ) (54 ) Allowance for loan losses, September 30, 2016 798 84 244 1,126 Reserve for unfunded credit commitments, July 1, 2016 59 5 — 64 Provision (credit) for unfunded credit losses 8 — — 8 Reserve for unfunded credit commitments, September 30, 2016 67 5 — 72 Allowance for credit losses, September 30, 2016 $ 865 $ 89 $ 244 $ 1,198 Three Months Ended September 30, 2015 Commercial Investor Real Estate Consumer Total (In millions) Allowance for loan losses, July 1, 2015 $ 740 $ 123 $ 252 $ 1,115 Provision (credit) for loan losses 32 (16 ) 44 60 Loan losses: Charge-offs (33 ) (3 ) (59 ) (95 ) Recoveries 14 5 16 35 Net loan losses (19 ) 2 (43 ) (60 ) Allowance for loan losses, September 30, 2015 753 109 253 1,115 Reserve for unfunded credit commitments, July 1, 2015 59 5 — 64 Provision (credit) for unfunded credit losses — — — — Reserve for unfunded credit commitments, September 30, 2015 59 5 — 64 Allowance for credit losses, September 30, 2015 $ 812 $ 114 $ 253 $ 1,179 Nine Months Ended September 30, 2016 Commercial Investor Real Estate Consumer Total (In millions) Allowance for loan losses, January 1, 2016 $ 758 $ 97 $ 251 $ 1,106 Provision (credit) for loan losses 108 (21 ) 127 214 Loan losses: Charge-offs (102 ) (2 ) (184 ) (288 ) Recoveries 34 10 50 94 Net loan losses (68 ) 8 (134 ) (194 ) Allowance for loan losses, September 30, 2016 798 84 244 1,126 Reserve for unfunded credit commitments, January 1, 2016 47 5 — 52 Provision (credit) for unfunded credit losses 20 — — 20 Reserve for unfunded credit commitments, September 30, 2016 67 5 — 72 Allowance for credit losses, September 30, 2016 $ 865 $ 89 $ 244 $ 1,198 Portion of ending allowance for loan losses: Individually evaluated for impairment $ 252 $ 19 $ 62 $ 333 Collectively evaluated for impairment 546 65 182 793 Total allowance for loan losses $ 798 $ 84 $ 244 $ 1,126 Portion of loan portfolio ending balance: Individually evaluated for impairment $ 1,119 $ 140 $ 785 $ 2,044 Collectively evaluated for impairment 41,625 6,624 30,590 78,839 Total loans evaluated for impairment $ 42,744 $ 6,764 $ 31,375 $ 80,883 Nine Months Ended September 30, 2015 Commercial Investor Real Estate Consumer Total (In millions) Allowance for loan losses, January 1, 2015 $ 654 $ 150 $ 299 $ 1,103 Provision (credit) for loan losses 142 (44 ) 74 172 Loan losses: Charge-offs (92 ) (15 ) (175 ) (282 ) Recoveries 49 18 55 122 Net loan losses (43 ) 3 (120 ) (160 ) Allowance for loan losses, September 30, 2015 753 109 253 1,115 Reserve for unfunded credit commitments, January 1, 2015 57 8 — 65 Provision (credit) for unfunded credit losses 2 (3 ) — (1 ) Reserve for unfunded credit commitments, September 30, 2015 59 5 — 64 Allowance for credit losses, September 30, 2015 $ 812 $ 114 $ 253 $ 1,179 Portion of ending allowance for loan losses: Individually evaluated for impairment $ 187 $ 27 $ 70 $ 284 Collectively evaluated for impairment 566 82 183 831 Total allowance for loan losses $ 753 $ 109 $ 253 $ 1,115 Portion of loan portfolio ending balance: Individually evaluated for impairment $ 744 $ 192 $ 846 $ 1,782 Collectively evaluated for impairment 43,309 6,719 29,253 79,281 Total loans evaluated for impairment $ 44,053 $ 6,911 $ 30,099 $ 81,063
Financing Receivable Credit Quality Indicators	September 30, 2016 Pass Special Mention Substandard Accrual Non-accrual Total (In millions) Commercial and industrial $ 32,854 $ 744 $ 1,097 $ 693 $ 35,388 Commercial real estate mortgage—owner-occupied 6,288 257 241 221 7,007 Commercial real estate construction—owner-occupied 326 10 10 3 349 Total commercial $ 39,468 $ 1,011 $ 1,348 $ 917 $ 42,744 Commercial investor real estate mortgage $ 4,056 $ 129 $ 103 $ 18 $ 4,306 Commercial investor real estate construction 2,242 189 26 1 2,458 Total investor real estate $ 6,298 $ 318 $ 129 $ 19 $ 6,764 Accrual Non-accrual Total (In millions) Residential first mortgage $ 13,352 $ 50 $ 13,402 Home equity 10,657 92 10,749 Indirect—vehicles 4,076 — 4,076 Indirect—other consumer 838 — 838 Consumer credit card 1,123 — 1,123 Other consumer 1,187 — 1,187 Total consumer $ 31,233 $ 142 $ 31,375 $ 80,883 December 31, 2015 Pass Special Mention Substandard Accrual Non-accrual Total (In millions) Commercial and industrial $ 33,639 $ 963 $ 894 $ 325 $ 35,821 Commercial real estate mortgage—owner-occupied 6,750 306 214 268 7,538 Commercial real estate construction—owner-occupied 385 21 15 2 423 Total commercial $ 40,774 $ 1,290 $ 1,123 $ 595 $ 43,782 Commercial investor real estate mortgage $ 3,926 $ 140 $ 158 $ 31 $ 4,255 Commercial investor real estate construction 2,658 4 30 — 2,692 Total investor real estate $ 6,584 $ 144 $ 188 $ 31 $ 6,947 Accrual Non-accrual Total (In millions) Residential first mortgage $ 12,748 $ 63 $ 12,811 Home equity 10,885 93 10,978 Indirect—vehicles 3,984 — 3,984 Indirect—other consumer 545 — 545 Consumer credit card 1,075 — 1,075 Other consumer 1,040 — 1,040 Total consumer $ 30,277 $ 156 $ 30,433 $ 81,162
Past Due Financing Receivables	The following tables include an aging analysis of days past due (DPD) for each portfolio segment and class as of September 30, 2016 and December 31, 2015 : September 30, 2016 Accrual Loans 30-59 DPD 60-89 DPD 90+ DPD Total 30+ DPD Total Accrual Non-accrual Total (In millions) Commercial and industrial $ 14 $ 7 $ 5 $ 26 $ 34,695 $ 693 $ 35,388 Commercial real estate mortgage—owner-occupied 50 9 3 62 6,786 221 7,007 Commercial real estate construction—owner-occupied 1 1 — 2 346 3 349 Total commercial 65 17 8 90 41,827 917 42,744 Commercial investor real estate mortgage 5 1 — 6 4,288 18 4,306 Commercial investor real estate construction — — — — 2,457 1 2,458 Total investor real estate 5 1 — 6 6,745 19 6,764 Residential first mortgage 87 58 205 350 13,352 50 13,402 Home equity 54 25 39 118 10,657 92 10,749 Indirect—vehicles 46 11 9 66 4,076 — 4,076 Indirect—other consumer 3 2 — 5 838 — 838 Consumer credit card 8 7 13 28 1,123 — 1,123 Other consumer 14 5 3 22 1,187 — 1,187 Total consumer 212 108 269 589 31,233 142 31,375 $ 282 $ 126 $ 277 $ 685 $ 79,805 $ 1,078 $ 80,883 December 31, 2015 Accrual Loans 30-59 DPD 60-89 DPD 90+ DPD Total 30+ DPD Total Accrual Non-accrual Total (In millions) Commercial and industrial $ 11 $ 6 $ 9 $ 26 $ 35,496 $ 325 $ 35,821 Commercial real estate mortgage—owner-occupied 24 7 3 34 7,270 268 7,538 Commercial real estate construction—owner-occupied — 1 — 1 421 2 423 Total commercial 35 14 12 61 43,187 595 43,782 Commercial investor real estate mortgage 14 13 4 31 4,224 31 4,255 Commercial investor real estate construction 2 — — 2 2,692 — 2,692 Total investor real estate 16 13 4 33 6,916 31 6,947 Residential first mortgage 88 60 220 368 12,748 63 12,811 Home equity 58 26 59 143 10,885 93 10,978 Indirect—vehicles 49 14 9 72 3,984 — 3,984 Indirect—other consumer 2 1 — 3 545 — 545 Consumer credit card 7 5 12 24 1,075 — 1,075 Other consumer 11 4 4 19 1,040 — 1,040 Total consumer 215 110 304 629 30,277 156 30,433 $ 266 $ 137 $ 320 $ 723 $ 80,380 $ 782 $ 81,162
Impaired Financing Receivables	The following tables present details related to the Company’s impaired loans as of September 30, 2016 and December 31, 2015 . 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 September 30, 2016 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 $ 733 $ 49 $ 684 $ 81 $ 603 $ 162 28.8 % Commercial real estate mortgage—owner-occupied 239 18 221 38 183 56 31.0 Commercial real estate construction—owner-occupied 4 1 3 — 3 2 75.0 Total commercial 976 68 908 119 789 220 29.5 Commercial investor real estate mortgage 21 3 18 5 13 6 42.9 Commercial investor real estate construction 1 — 1 — 1 — — Total investor real estate 22 3 19 5 14 6 40.9 Residential first mortgage 43 13 30 — 30 4 39.5 Home equity 12 1 11 — 11 — 8.3 Total consumer 55 14 41 — 41 4 32.7 $ 1,053 $ 85 $ 968 $ 124 $ 844 $ 230 29.9 % Accruing Impaired Loans As of September 30, 2016 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 $ 150 $ 2 $ 148 $ 26 18.7 % Commercial real estate mortgage—owner-occupied 68 5 63 6 16.2 Total commercial 218 7 211 32 17.9 Commercial investor real estate mortgage 93 7 86 9 17.2 Commercial investor real estate construction 35 — 35 4 11.4 Total investor real estate 128 7 121 13 15.6 Residential first mortgage 441 12 429 52 14.5 Home equity 302 — 302 6 2.0 Consumer credit card 2 — 2 — — Other consumer 11 — 11 — — Total consumer 756 12 744 58 9.3 $ 1,102 $ 26 $ 1,076 $ 103 11.7 % Total Impaired Loans As of September 30, 2016 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 $ 883 $ 51 $ 832 $ 81 $ 751 $ 188 27.1 % Commercial real estate mortgage—owner-occupied 307 23 284 38 246 62 27.7 Commercial real estate construction—owner-occupied 4 1 3 — 3 2 75.0 Total commercial 1,194 75 1,119 119 1,000 252 27.4 Commercial investor real estate mortgage 114 10 104 5 99 15 21.9 Commercial investor real estate construction 36 — 36 — 36 4 11.1 Total investor real estate 150 10 140 5 135 19 19.3 Residential first mortgage 484 25 459 — 459 56 16.7 Home equity 314 1 313 — 313 6 2.2 Consumer credit card 2 — 2 — 2 — — Other consumer 11 — 11 — 11 — — Total consumer 811 26 785 — 785 62 10.9 $ 2,155 $ 111 $ 2,044 $ 124 $ 1,920 $ 333 20.6 % Non-accrual Impaired Loans As of December 31, 2015 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 $ 363 $ 41 $ 322 $ 26 $ 296 $ 98 38.3 % Commercial real estate mortgage—owner-occupied 286 18 268 36 232 69 30.4 Commercial real estate construction—owner-occupied 2 — 2 — 2 1 50.0 Total commercial 651 59 592 62 530 168 34.9 Commercial investor real estate mortgage 36 5 31 13 18 8 36.1 Total investor real estate 36 5 31 13 18 8 36.1 Residential first mortgage 51 16 35 — 35 4 39.2 Home equity 14 1 13 — 13 — 7.1 Total consumer 65 17 48 — 48 4 32.3 $ 752 $ 81 $ 671 $ 75 $ 596 $ 180 34.7 % Accruing Impaired Loans As of December 31, 2015 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 $ 68 $ 1 $ 67 $ 13 20.6 % Commercial real estate mortgage—owner-occupied 89 6 83 8 15.7 Commercial real estate construction—owner-occupied 1 — 1 — — Total commercial 158 7 151 21 17.7 Commercial investor real estate mortgage 141 8 133 13 14.9 Commercial investor real estate construction 27 — 27 5 18.5 Total investor real estate 168 8 160 18 15.5 Residential first mortgage 457 13 444 57 15.3 Home equity 328 — 328 7 2.1 Indirect—vehicles 1 — 1 — — Consumer credit card 2 — 2 — — Other consumer 12 — 12 — — Total consumer 800 13 787 64 9.6 $ 1,126 $ 28 $ 1,098 $ 103 11.6 % Total Impaired Loans As of December 31, 2015 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 $ 431 $ 42 $ 389 $ 26 $ 363 $ 111 35.5 % Commercial real estate mortgage—owner-occupied 375 24 351 36 315 77 26.9 Commercial real estate construction—owner-occupied 3 — 3 — 3 1 33.3 Total commercial 809 66 743 62 681 189 31.5 Commercial investor real estate mortgage 177 13 164 13 151 21 19.2 Commercial investor real estate construction 27 — 27 — 27 5 18.5 Total investor real estate 204 13 191 13 178 26 19.1 Residential first mortgage 508 29 479 — 479 61 17.7 Home equity 342 1 341 — 341 7 2.3 Indirect—vehicles 1 — 1 — 1 — — Consumer credit card 2 — 2 — 2 — — Other consumer 12 — 12 — 12 — — Total consumer 865 30 835 — 835 68 11.3 $ 1,878 $ 109 $ 1,769 $ 75 $ 1,694 $ 283 20.9 % ________ (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 and nine months ended September 30, 2016 and 2015 . Interest income recognized represents interest on accruing loans modified in a TDR. TDRs are considered impaired loans. Three Months Ended September 30 Nine Months Ended September 30 2016 2015 2016 2015 Average Balance Interest Income Recognized Average Balance Interest Income Recognized Average Balance Interest Income Recognized Average Balance Interest Income Recognized (In millions) Commercial and industrial $ 816 $ 1 $ 379 $ 1 $ 670 $ 4 $ 378 $ 4 Commercial real estate mortgage—owner-occupied 296 1 322 2 313 3 350 7 Commercial real estate construction—owner-occupied 4 — 4 — 3 — 4 — Total commercial 1,116 2 705 3 986 7 732 11 Commercial investor real estate mortgage 117 1 210 2 128 4 266 8 Commercial investor real estate construction 36 1 14 — 31 1 26 1 Total investor real estate 153 2 224 2 159 5 292 9 Residential first mortgage 464 4 477 3 473 12 476 11 Home equity 317 3 352 5 328 12 357 14 Indirect—vehicles — — 1 — — — 1 — Consumer credit card 2 — 2 — 2 — 2 — Other consumer 11 1 13 1 12 1 15 1 Total consumer 794 8 845 9 815 25 851 26 Total impaired loans $ 2,063 $ 12 $ 1,774 $ 14 $ 1,960 $ 37 $ 1,875 $ 46
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 nine months ended September 30, 2016 and 2015 totaled approximately $347 million and $217 million , respectively. Three Months Ended September 30, 2016 Financial Impact of Modifications Considered TDRs Number of Obligors Recorded Investment Increase in Allowance at Modification (Dollars in millions) Commercial and industrial 47 $ 117 $ 2 Commercial real estate mortgage—owner-occupied 22 26 1 Total commercial 69 143 3 Commercial investor real estate mortgage 19 27 — Commercial investor real estate construction 3 25 1 Total investor real estate 22 52 1 Residential first mortgage 51 9 1 Home equity 57 2 — Consumer credit card 14 1 — Indirect—vehicles and other consumer 47 1 — Total consumer 169 13 1 260 $ 208 $ 5 Three Months Ended September 30, 2015 Financial Impact of Modifications Considered TDRs Number of Obligors Recorded Investment Increase in Allowance at Modification (Dollars in millions) Commercial and industrial 47 $ 43 $ 1 Commercial real estate mortgage—owner-occupied 44 26 1 Total commercial 91 69 2 Commercial investor real estate mortgage 32 68 2 Commercial investor real estate construction 1 1 — Total investor real estate 33 69 2 Residential first mortgage 92 31 4 Home equity 139 8 — Consumer credit card 30 — — Indirect—vehicles and other consumer 69 1 — Total consumer 330 40 4 454 $ 178 $ 8 Nine Months Ended September 30, 2016 Financial Impact Number of Recorded Increase in (Dollars in millions) Commercial and industrial 142 $ 298 $ 8 Commercial real estate mortgage—owner-occupied 98 60 2 Total commercial 240 358 10 Commercial investor real estate mortgage 68 87 1 Commercial investor real estate construction 8 36 1 Total investor real estate 76 123 2 Residential first mortgage 189 38 5 Home equity 263 13 — Consumer credit card 65 1 — Indirect—vehicles and other consumer 148 2 — Total consumer 665 54 5 981 $ 535 $ 17 Nine Months Ended September 30, 2015 Financial Impact Number of Recorded Increase in (Dollars in millions) Commercial and industrial 150 $ 145 $ 3 Commercial real estate mortgage—owner-occupied 147 88 3 Total commercial 297 233 6 Commercial investor real estate mortgage 92 107 3 Commercial investor real estate construction 14 8 — Total investor real estate 106 115 3 Residential first mortgage 321 83 11 Home equity 451 23 — Consumer credit card 103 1 — Indirect—vehicles and other consumer 265 3 — Total consumer 1,140 110 11 1,543 $ 458 $ 20 Defaulted TDRs The following table presents, by portfolio segment and class, TDRs that defaulted during the three and nine months ended September 30, 2016 and 2015 , and that were modified in the previous twelve months (i.e., the twelve months prior to the default). For purposes of this disclosure, default is defined as 90 days past due and still accruing for the consumer portfolio segment, and placement on non-accrual status for the commercial and investor real estate portfolio segments. Consideration of defaults in the calculation of the allowance for loan losses is described in detail in the consolidated financial statements included in the Annual Report on Form 10-K for the year ended December 31, 2015 . Three Months Ended September 30 Nine Months Ended September 30 2016 2015 2016 2015 (In millions) Defaulted During the Period, Where Modified in a TDR Twelve Months Prior to Default Commercial and industrial $ 16 $ 4 $ 28 $ 8 Commercial real estate mortgage—owner-occupied 1 3 2 6 Total commercial 17 7 30 14 Commercial investor real estate mortgage 1 — 2 1 Commercial investor real estate construction 1 — 1 — Total investor real estate 2 — 3 1 Residential first mortgage 7 7 18 15 Home equity — 1 1 2 Total consumer 7 8 19 17 $ 26 $ 15 $ 52 $ 32

Servicing of Financial Assets (

Servicing of Financial Assets (Tables)	9 Months Ended
	Sep. 30, 2016
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 September 30 Nine Months Ended September 30 2016 2015 2016 2015 (In millions) Carrying value, beginning of period $ 216 $ 268 $ 252 $ 257 Additions 34 9 73 28 Increase (decrease) in fair value (1) : Due to change in valuation inputs or assumptions (2 ) (25 ) (60 ) (14 ) Economic amortization associated with borrower repayments (10 ) (11 ) (27 ) (30 ) Carrying value, end of period $ 238 $ 241 $ 238 $ 241 ________ (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: September 30 2016 2015 (Dollars in millions) Unpaid principal balance $ 29,657 $ 26,220 Weighted-average prepayment speed (CPR; percentage) 12.3 % 12.0 % Estimated impact on fair value of a 10% increase $ (13 ) $ (13 ) Estimated impact on fair value of a 20% increase $ (24 ) $ (25 ) Option-adjusted spread (basis points) 1,060 999 Estimated impact on fair value of a 10% increase $ (9 ) $ (9 ) Estimated impact on fair value of a 20% increase $ (18 ) $ (18 ) Weighted-average coupon interest rate 4.2 % 4.4 % Weighted-average remaining maturity (months) 280 279 Weighted-average servicing fee (basis points) 27.6 27.9
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 September 30 Nine Months Ended September 30 2016 2015 2016 2015 (In millions) Servicing related fees and other ancillary income $ 21 $ 21 $ 63 $ 62

Goodwill (Tables)

Goodwill (Tables)	9 Months Ended
	Sep. 30, 2016
Goodwill and Intangible Assets Disclosure [Abstract]
Schedule of Goodwill	Goodwill allocated to each reportable segment (each a reporting unit) is presented as follows: September 30, 2016 December 31, 2015 (In millions) Corporate Bank $ 2,452 $ 2,305 Consumer Bank 1,978 2,095 Wealth Management 452 478 $ 4,882 $ 4,878

Stockholders' Equity and Accu30

Stockholders' Equity and Accumulated Other Comprehensive Income (Loss) (Tables)	9 Months Ended
	Sep. 30, 2016
Equity [Abstract]
Summary of the non-cumulative perpetual preferred stock	The following table presents a summary of the non-cumulative perpetual preferred stock: September 30, 2016 December 31, 2015 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 September 30, 2016 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 $ (40 ) $ 297 $ 278 $ (387 ) $ 148 Net change 5 (13 ) (40 ) 5 (43 ) End of period $ (35 ) $ 284 $ 238 $ (382 ) $ 105 Three Months Ended September 30, 2015 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 $ (51 ) $ 96 $ 45 $ (377 ) $ (287 ) Net change 2 42 96 8 148 End of period $ (49 ) $ 138 $ 141 $ (369 ) $ (139 ) Nine Months Ended September 30, 2016 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 (In millions) Beginning of period $ (47 ) $ (10 ) $ 75 $ (398 ) $ (380 ) Net change 12 294 163 16 485 End of period $ (35 ) $ 284 $ 238 $ (382 ) $ 105 Nine Months Ended September 30, 2015 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 (In millions) Beginning of period $ (55 ) $ 175 $ 33 $ (391 ) $ (238 ) Net change 6 (37 ) 108 22 99 End of period $ (49 ) $ 138 $ 141 $ (369 ) $ (139 )
Reclassification From Accumulated Other Comprehensive Income (Loss)	The following tables present amounts reclassified out of accumulated other comprehensive income (loss) for the three and nine months ended September 30, 2016 and 2015 : Three Months Ended September 30, 2016 Three Months Ended September 30, 2015 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: $ (9 ) $ (3 ) Net interest income and other financing income 4 1 Tax (expense) or benefit $ (5 ) $ (2 ) Net of tax Unrealized gains and (losses) on available for sale securities: $ — $ 7 Securities gains (losses), net — (2 ) Tax (expense) or benefit $ — $ 5 Net of tax Gains and (losses) on cash flow hedges: Interest rate contracts $ 35 $ 41 Net interest income and other financing income (13 ) (16 ) Tax (expense) or benefit $ 22 $ 25 Net of tax Amortization of defined benefit pension plans and other post employment benefits: Prior-service cost $ — $ (1 ) (2) Actuarial gains (losses) (9 ) (12 ) (2) (9 ) (13 ) Total before tax 3 4 Tax (expense) or benefit $ (6 ) $ (9 ) Net of tax Total reclassifications for the period $ 11 $ 19 Net of tax Nine Months Ended September 30, 2016 Nine Months Ended September 30, 2015 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: $ (20 ) $ (10 ) Net interest income and other financing income 8 4 Tax (expense) or benefit $ (12 ) $ (6 ) Net of tax Unrealized gains and (losses) on available for sale securities: $ 1 $ 18 Securities gains (losses), net — (6 ) Tax (expense) or benefit $ 1 $ 12 Net of tax Gains and (losses) on cash flow hedges: Interest rate contracts $ 109 $ 108 Net interest income and other financing income (41 ) (41 ) Tax (expense) or benefit $ 68 $ 67 Net of tax Amortization of defined benefit pension plans and other post employment benefits: Prior-service cost $ — $ (1 ) (2) Actuarial gains (losses) (26 ) (36 ) (2) (26 ) (37 ) Total before tax 9 13 Tax (expense) or benefit $ (17 ) $ (24 ) Net of tax Total reclassifications for the period $ 40 $ 49 Net of tax ________ (1) Amounts in parentheses indicate reductions to net income. (2) These accumulated other comprehensive income (loss) components are included in the computation of net periodic pension cost and are included in salaries and employee benefits on the consolidated statements of income (see Note 10 for additional details).

Earnings (Loss) Per Common Sh31

Earnings (Loss) Per Common Share (Tables)	9 Months Ended
	Sep. 30, 2016
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 September 30 Nine Months Ended September 30 2016 2015 2016 2015 (In millions, except per share amounts) Numerator: Income from continuing operations $ 319 $ 262 $ 864 $ 787 Preferred stock dividends (16 ) (16 ) (48 ) (48 ) Income from continuing operations available to common shareholders 303 246 816 739 Income (loss) from discontinued operations, net of tax 1 (4 ) 4 (10 ) Net income available to common shareholders $ 304 $ 242 $ 820 $ 729 Denominator: Weighted-average common shares outstanding—basic 1,246 1,319 1,266 1,333 Potential common shares 6 7 4 10 Weighted-average common shares outstanding—diluted 1,252 1,326 1,270 1,343 Earnings per common share from continuing operations available to common shareholders (1) : Basic $ 0.24 $ 0.19 $ 0.64 $ 0.55 Diluted 0.24 0.19 0.64 0.55 Earnings (loss) per common share from discontinued operations (1) : Basic 0.00 (0.00 ) 0.00 (0.01 ) Diluted 0.00 (0.00 ) 0.00 (0.01 ) Earnings per common share (1) : Basic 0.24 0.18 0.65 0.55 Diluted 0.24 0.18 0.65 0.54 ________ (1) Certain per share amounts may not appear to reconcile due to rounding.

Share-Based Payments (Tables)

Share-Based Payments (Tables)	9 Months Ended
	Sep. 30, 2016
Disclosure of Compensation Related Costs, Share-based Payments [Abstract]
Schedule of Share-based Compensation, Stock Options, Activity	The following table summarizes the activity related to stock options: Nine Months Ended September 30 2016 2015 Number of Options Weighted-Average Exercise Price Number of Options Weighted-Average Exercise Price Outstanding at beginning of period 19,350,157 $ 21.06 25,316,676 $ 23.07 Exercised (568,882 ) 5.86 (535,107 ) 6.92 Forfeited or expired (3,840,704 ) 34.68 (5,410,769 ) 31.82 Outstanding at end of period 14,940,571 $ 18.14 19,370,800 $ 21.07 Exercisable at end of period 14,940,571 $ 18.14 19,370,800 $ 21.07
Summary Of Activity Related To Restricted Stock Awards And Performance Stock Awards	The following table summarizes the activity related to restricted stock awards and performance stock awards: Nine Months Ended September 30 2016 2015 Number of Shares Weighted-Average Grant Date Fair Value Number of Shares Weighted-Average Non-vested at beginning of period 16,374,242 $ 9.51 18,427,409 $ 8.07 Granted 6,840,385 7.92 6,622,682 9.90 Vested (5,735,271 ) 8.25 (8,106,010 ) 6.07 Forfeited (686,347 ) 9.18 (506,271 ) 8.54 Non-vested at end of period 16,793,009 $ 9.31 16,437,810 $ 9.51

Pension and Other Postretirem33

Pension and Other Postretirement Benefits (Tables)	9 Months Ended
	Sep. 30, 2016
Defined Benefit Pension Plans and Defined Benefit Postretirement Plans Disclosure [Abstract]
Schedule of Net Periodic Pension Cost	Net periodic pension cost, which is recorded in salaries and employee benefits on the consolidated statements of income, included the following components: Qualified Plan Non-qualified Plans Total Three Months Ended September 30 2016 2015 2016 2015 2016 2015 (In millions) Service cost $ 9 $ 10 $ 1 $ 1 $ 10 $ 11 Interest cost 19 21 1 2 20 23 Expected return on plan assets (36 ) (38 ) — — (36 ) (38 ) Amortization of actuarial loss 8 11 1 1 9 12 Amortization of prior service cost — — — 1 — 1 Net periodic pension cost (credit) $ — $ 4 $ 3 $ 5 $ 3 $ 9 Qualified Plan Non-qualified Plans Total Nine Months Ended September 30 2016 2015 2016 2015 2016 2015 (In millions) Service cost $ 26 $ 30 $ 3 $ 4 $ 29 $ 34 Interest cost 55 63 4 5 59 68 Expected return on plan assets (108 ) (112 ) — — (108 ) (112 ) Amortization of actuarial loss 24 33 2 3 26 36 Amortization of prior service cost — — — 1 — 1 Net periodic pension cost (credit) $ (3 ) $ 14 $ 9 $ 13 $ 6 $ 27

Derivative Financial Instrume34

Derivative Financial Instruments and Hedging Activities (Tables)	9 Months Ended
	Sep. 30, 2016
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 September 30, 2016 and December 31, 2015 . September 30, 2016 December 31, 2015 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 $ 2,310 $ 6 $ 45 $ 2,450 $ 5 $ 27 Derivatives in cash flow hedging relationships: Interest rate swaps 9,000 97 2 9,800 109 9 Total derivatives designated as hedging instruments $ 11,310 $ 103 $ 47 $ 12,250 $ 114 $ 36 Derivatives not designated as hedging instruments: Interest rate swaps $ 41,529 $ 641 $ 655 $ 40,612 $ 496 $ 528 Interest rate options 3,723 18 1 3,441 11 1 Interest rate futures and forward commitments 20,693 3 8 17,288 5 6 Other contracts 5,255 90 81 4,367 200 187 Total derivatives not designated as hedging instruments $ 71,200 $ 752 $ 745 $ 65,708 $ 712 $ 722 Total derivatives $ 82,510 $ 855 $ 792 $ 77,958 $ 826 $ 758 _________ (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.
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: Gain or (Loss) Recognized in Income on Derivatives Location of Amounts Recognized in Income on Derivatives and Related Hedged Item Gain or (Loss) Recognized in Income on Related Hedged Item Three Months Ended September 30 Three Months Ended September 30 2016 2015 2016 2015 (In millions) (In millions) Fair Value Hedges: Interest rate swaps on: Debt/CDs $ 2 $ 5 Interest expense $ — $ (1 ) Debt/CDs (23 ) 10 Other non-interest expense 24 (11 ) Securities available for sale (2 ) (3 ) Interest income — — Securities available for sale 2 (23 ) Other non-interest expense (5 ) 21 Total $ (21 ) $ (11 ) $ 19 $ 9 Effective Portion (3) Gain or (Loss) Recognized in AOCI (1) Location of Amounts Reclassified from AOCI into Income Gain or (Loss) Reclassified from AOCI into Income (2) Three Months Ended September 30 Three Months Ended September 30 2016 2015 2016 2015 (In millions) (In millions) Cash Flow Hedges: Interest rate swaps $ (40 ) $ 96 Interest income on loans $ 35 $ 41 Total $ (40 ) $ 96 $ 35 $ 41 Gain or (Loss) Recognized in Income on Derivatives Location of Amounts Recognized in Income on Derivatives and Related Hedged Item Gain or (Loss) Recognized in Income on Related Hedged Item Nine Months Ended September 30 Nine Months Ended September 30 2016 2015 2016 2015 (In millions) (In millions) Fair Value Hedges: Interest rate swaps on: Debt/CDs $ 10 $ 13 Interest expense $ (2 ) $ 5 Debt/CDs 4 14 Other non-interest expense (3 ) (15 ) Securities available for sale (7 ) (11 ) Interest income — — Securities available for sale (36 ) (18 ) Other non-interest expense 32 15 Total $ (29 ) $ (2 ) $ 27 $ 5 Effective Portion (3) Gain or (Loss) Recognized in AOCI (1) Location of Amounts Reclassified from AOCI into Income Gain or (Loss) Reclassified from AOCI into Income (2) Nine Months Ended September 30 Nine Months Ended September 30 2016 2015 2016 2015 (In millions) (In millions) Cash Flow Hedges: Interest rate swaps $ 163 $ 108 Interest income on loans $ 109 $ 108 Total $ 163 $ 108 $ 109 $ 108 ______ (1) After-tax (2) Pre-tax (3) All cash flow hedges were highly effective for all periods presented, and the change in fair value attributed to hedge ineffectiveness was not material.
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 and nine months ended September 30, 2016 and 2015 : Three Months Ended September 30 Nine Months Ended September 30 Derivatives Not Designated as Hedging Instruments 2016 2015 2016 2015 (In millions) Capital markets fee income and other (1) : Interest rate swaps $ 4 $ 3 $ 7 $ 11 Interest rate options 2 5 16 9 Interest rate futures and forward commitments 1 1 4 — Other contracts (11 ) 8 (9 ) 1 Total capital markets fee income and other (4 ) 17 18 21 Mortgage income: Interest rate swaps (3 ) 22 45 19 Interest rate options (1 ) — 7 4 Interest rate futures and forward commitments 8 (8 ) 9 (1 ) Total mortgage income 4 14 61 22 $ — $ 31 $ 79 $ 43 ______ (1) Capital markets fee income and other is included in Other income on the consolidated statements of income.
Schedule Of Gross Derivative Positions, Including Collateral Posted or Received	The following table presents the Company's gross derivative positions, including collateral posted or received, as of September 30, 2016 and December 31, 2015 . Offsetting Derivative Assets Offsetting Derivative Liabilities September 30, 2016 December 31, 2015 September 30, 2016 December 31, 2015 (In millions) Gross amounts subject to offsetting $ 712 $ 718 $ 616 $ 677 Gross amounts not subject to offsetting 143 108 176 81 Gross amounts recognized 855 826 792 758 Gross amounts offset in the consolidated balance sheets (1) 388 409 571 558 Net amounts presented in the consolidated balance sheets 467 417 221 200 Gross amounts not offset in the consolidated balance sheets: Financial instruments 4 5 51 50 Cash collateral received/posted — 6 129 52 Net amounts $ 463 $ 406 $ 41 $ 98 ________ (1) At September 30, 2016 , gross amounts of derivative assets and liabilities offset in the consolidated balance sheets presented above include cash collateral received of $271 million and cash collateral posted of $88 million . At December 31, 2015 , gross amounts of derivative assets and liabilities offset in the consolidated balance sheets presented above include cash collateral received of $108 million and cash collateral posted of $256 million .

Fair Value Measurements (Tables

Fair Value Measurements (Tables)	9 Months Ended
	Sep. 30, 2016
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 September 30, 2016 and December 31, 2015 : September 30, 2016 December 31, 2015 Level 1 Level 2 Level 3 Total Estimated Fair Value Level 1 Level 2 Level 3 Total Estimated Fair Value (In millions) Recurring fair value measurements Trading account securities $ 120 $ — $ — $ 120 $ 110 $ — $ 33 $ 143 Securities available for sale: U.S. Treasury securities $ 242 $ — $ — $ 242 $ 228 $ — $ — $ 228 Federal agency securities — 38 — 38 — 218 — 218 Obligations of states and political subdivisions — — — — — 1 — 1 Mortgage-backed securities (MBS): Residential agency — 17,506 — 17,506 — 16,062 — 16,062 Residential non-agency — — 5 5 — — 5 5 Commercial agency — 3,413 — 3,413 — 3,018 — 3,018 Commercial non-agency — 1,141 — 1,141 — 1,231 — 1,231 Corporate and other debt securities — 1,331 3 1,334 — 1,664 3 1,667 Equity securities 180 — — 180 280 — — 280 Total securities available for sale $ 422 $ 23,429 $ 8 $ 23,859 $ 508 $ 22,194 $ 8 $ 22,710 Mortgage loans held for sale $ — $ 459 $ 90 $ 549 $ — $ 353 $ — $ 353 Residential mortgage servicing rights $ — $ — $ 238 $ 238 $ — $ — $ 252 $ 252 Derivative assets: Interest rate swaps $ — $ 744 $ — $ 744 $ — $ 610 $ — $ 610 Interest rate options — 2 16 18 — 1 10 11 Interest rate futures and forward commitments — 3 — 3 — 5 — 5 Other contracts 4 86 — 90 — 200 — 200 Total derivative assets $ 4 $ 835 $ 16 $ 855 $ — $ 816 $ 10 $ 826 Derivative liabilities: Interest rate swaps $ — $ 702 $ — $ 702 $ — $ 564 $ — $ 564 Interest rate options — 1 — 1 — 1 — 1 Interest rate futures and forward commitments — 8 — 8 — 6 — 6 Other contracts — 81 — 81 — 187 — 187 Total derivative liabilities $ — $ 792 $ — $ 792 $ — $ 758 $ — $ 758 Non-recurring fair value measurements Loans held for sale $ — $ — $ 11 $ 11 $ — $ — $ 36 $ 36 Foreclosed property and other real estate — 38 12 50 — 30 8 38
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 assets and liabilities measured at fair value on a recurring basis using significant unobservable inputs (Level 3) for the three and nine months ended September 30, 2016 and 2015 . The tables do not reflect the change in fair value attributable to any related economic hedges the Company used to mitigate the interest rate risk associated with these assets and liabilities. The net changes in realized gains (losses) included in earnings related to Level 3 assets and liabilities held at September 30, 2016 and 2015 are not material. Three Months Ended September 30, 2016 Opening Total Realized / Unrealized Gains or Losses Purchases Sales Issuances Settlements Transfers Transfers Closing Included in Earnings Included in Other Compre- hensive Income (Loss) (In millions) Level 3 Instruments Only Securities available for sale: Residential non-agency MBS $ 5 — — — — — — — — $ 5 Corporate and other debt securities 3 — — — — — — — — 3 Total securities available for sale $ 8 — — — — — — — — $ 8 Commercial mortgage loans held for sale $ 30 — — — — 60 — — — $ 90 Residential mortgage servicing rights $ 216 (12 ) (1) — 34 — — — — — $ 238 Total derivatives, net $ 17 32 (2) — — — — (33 ) — — $ 16 Three Months Ended September 30, 2015 Opening Total Realized / Purchases Sales Issuances Settlements Transfers Transfers Closing Included Included (In millions) Level 3 Instruments Only Securities available for sale: Residential non-agency MBS $ 6 — — — — — — — — $ 6 Corporate and other debt securities 3 — — — — — — — — 3 Total securities available for sale $ 9 — — — — — — — — $ 9 Residential mortgage servicing rights $ 268 (36 ) (1) — 9 — — — — — $ 241 Total derivatives, net $ 13 32 (3) — — — — (32 ) — — $ 13 Nine Months Ended September 30, 2016 Opening Total Realized / Unrealized Gains or Losses Purchases Sales Issuances Settlements Transfers Transfers Closing Included in Earnings Included in Other Compre- hensive Income (Loss) (In millions) Level 3 Instruments Only Trading account securities $ 33 (2 ) (4) — — (31 ) — — — — $ — Securities available for sale: Residential non-agency MBS $ 5 — — — — — — — — $ 5 Corporate and other debt securities 3 — — — — — — — — 3 Total securities available for sale $ 8 — — — — — — — — $ 8 Commercial mortgage loans held for sale $ — — — — — 90 — — — $ 90 Residential mortgage servicing rights $ 252 (87 ) (1) — 73 — — — — — $ 238 Total derivatives, net $ 10 105 (5) — — — — (99 ) — — $ 16 Nine Months Ended September 30, 2015 Opening Total Realized / Unrealized Gains or Losses Purchases Sales Issuances Settlements Transfers into Level 3 Transfers out of Level 3 Closing Included in Earnings Included in Other Compre- hensive Income (Loss) (In millions) Level 3 Instruments Only Securities available for sale: Residential non-agency MBS $ 8 — — — — — (2 ) — — $ 6 Corporate and other debt securities 3 — — — — — — — — 3 Total securities available for sale $ 11 — — — — — (2 ) — — $ 9 Residential mortgage servicing rights $ 257 (44 ) (1) — 28 — — — — — $ 241 Total derivatives, net $ 8 85 (6) — — — — (80 ) — — $ 13 _________ (1) Included in mortgage income. (2) Approximately $3 million was included in capital markets fee income and other and $29 million was included in mortgage income. (3) Approximately $1 million was included in capital markets fee income and other and $31 million was included in mortgage income. (4) Included in capital markets fee income and other. (5) Approximately $16 million was included in capital markets fee income and other and $89 million was included in mortgage income. (6) Approximately $5 million was included in capital markets fee income and other and $80 million was 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 September 30 Nine Months Ended September 30 2016 2015 2016 2015 (In millions) Loans held for sale $ (3 ) $ (5 ) $ (25 ) $ (16 ) Foreclosed property and other real estate (8 ) (9 ) (35 ) (56 )
Summary Of Quantitative Information About Level 3 Measurements	The following tables present detailed information regarding assets and liabilities measured at fair value using significant unobservable inputs (Level 3) as of September 30, 2016 , and December 31, 2015 . 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 September 30, 2016 , and December 31, 2015 , are included. Following the tables are descriptions of the valuation techniques and the sensitivity of the techniques to changes in the significant unobservable inputs. September 30, 2016 Level 3 Valuation Technique Unobservable Input(s) Quantitative Range of Unobservable Inputs and (Weighted-Average) (Dollars in millions) Recurring fair value measurements: Securities available for sale: Residential non-agency MBS $5 Discounted cash flow Spread to LIBOR 5.5% - 70.0% (23.0%) Weighted-average prepayment speed (CPR; percentage) 3.8% - 27.2% (11.9%) Probability of default 3.4% Loss severity 55.9% Corporate and other debt securities $3 Market comparable Evaluated quote on same issuer/comparable bond 100.3% Commercial mortgage loans held for sale $90 Market comparable Credit spreads for bonds in the commercial MBS 0.4% - 6.0% (1.4%) Residential mortgage servicing rights (1) $238 Discounted cash flow Weighted-average prepayment speed (CPR; percentage) 10.4% - 28.8% (12.3%) OAS (percentage) 8.2% - 13.5% (10.6%) Derivative assets: Interest rate options $15 Interest rate lock commitments on the residential mortgage loans are valued using discounted cash flows Weighted-average prepayment speed (CPR; percentage) 10.4% - 28.8% (12.3%) OAS (percentage) 8.2% - 13.5% (10.6%) Pull-through 28.5% - 99.4% (77.6%) $1 Interest rate lock commitments on the commercial mortgage loans are valued using discounted cash flows Internal rate of return 7.0% - 17.0% (12.0%) Nonrecurring fair value measurements: Loans held for sale $11 Commercial loans held for sale are valued based on multiple data points, including discount to appraised value of collateral based on recent market activity for sales of similar loans Appraisal comparability adjustment (discount) 4.0% - 96.0% (56.2%) Foreclosed property and other real estate $8 Property in foreclosure is valued by discount to appraised value of property based on recent market activity for sales of similar properties Appraisal comparability adjustment (discount) 25.0% - 80.9% (54.0%) $4 Bank owned property valuations are based on comparable sales and local broker network estimates provided by a third-party real estate services provider Estimated third-party valuations utilizing available sales data for similar transactions (discount) 35.0% _________ (1) See Note 5 for additional disclosures related to assumptions used in the fair value calculation for residential mortgage servicing rights. December 31, 2015 Level 3 Valuation Technique Unobservable Input(s) Quantitative Range of Unobservable Inputs and (Weighted-Average) (Dollars in millions) Recurring fair value measurements: Trading account securities $33 Market comparable Spread from US High Yield B Effective Yield Index 4.7% Securities available for sale: Residential non-agency MBS $5 Discounted cash flow Spread to LIBOR 5.5% - 70.1% (23.0%) Weighted-average prepayment speed (CPR; percentage) 5.6% - 11.9% (9.9%) Probability of default 2.2% Loss severity 74.3% Corporate and other debt securities $3 Market comparable Evaluated quote on same issuer/comparable bond 100.2% Residential mortgage servicing rights (1) $252 Discounted cash flow Weighted-average prepayment speed (CPR; percentage) 10.5% - 11.5% (10.9%) OAS (percentage) 8.7% - 13.3% (10.0%) Derivative assets: Interest rate options $9 Interest rate lock commitments on the residential loans are valued using discounted cash flows Weighted-average prepayment speed (CPR; percentage) 10.5% - 11.5% (10.9%) OAS (percentage) 8.7% - 13.3% (10.0%) Pull-through 18.9% - 99.4% (80.7%) $1 Interest rate lock commitments on the commercial mortgage loans are valued using discounted cash flows Internal rate of return 12.0% Nonrecurring fair value measurements: Loans held for sale $36 Commercial loans held for sale are valued based on multiple data points, including discount to appraised value of collateral based on recent market activity for sales of similar loans Appraisal comparability adjustment (discount) 11.1% - 85.7% (69.0%) Foreclosed property and other real estate $5 Property in foreclosure is valued by discount to appraised value of property based on recent market activity for sales of similar properties Appraisal comparability adjustment (discount) 25.0% - 44.0% (30.3%) $3 Bank owned property valuations are based on comparable sales and local broker network estimates provided by a third-party real estate services provider Estimated third-party valuations utilizing available sales data for similar transactions (discount) 3.0% - 58.8% (39.2%) _________ (1) See Note 7 to the consolidated financial statements of the Annual Report on Form 10-K for the year ended December 31, 2015 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: September 30, 2016 December 31, 2015 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 $ 549 $ 529 $ 20 $ 353 $ 341 $ 12 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 (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 and nine months ended September 30, 2016 and 2015 . 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. Mortgage loans held for sale, at fair value Three Months Ended September 30 Nine Months Ended September 30 2016 2015 2016 2015 (In millions) Net gains (losses) resulting from changes in fair value $ — $ 8 $ 9 $ —
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 September 30, 2016 are as follows: September 30, 2016 Carrying Amount Estimated Fair Value (1) Level 1 Level 2 Level 3 (In millions) Financial assets: Cash and cash equivalents $ 4,238 $ 4,238 $ 4,238 $ — $ — Trading account securities 120 120 120 — — Securities held to maturity 1,431 1,485 — 1,485 — Securities available for sale 23,859 23,859 422 23,429 8 Loans held for sale 571 549 — 459 90 Loans (excluding leases), net of unearned income and allowance for loan losses (2)(3) 78,821 74,713 — — 74,713 Other earning assets (4) 771 771 — 771 — Derivative assets 855 855 4 835 16 Financial liabilities: Derivative liabilities 792 792 — 792 — Deposits 99,289 99,375 — 99,375 — Short-term borrowings — — — — — Long-term borrowings 6,054 6,369 — 4,102 2,267 Loan commitments and letters of credit 105 512 — — 512 Indemnification obligation 32 30 — — 30 _________ (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 makes adjustments for interest rates, market liquidity and credit spreads as appropriate. (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 at September 30, 2016 was $4.1 billion or 5.2 percent. (3) Excluded from this table is the capital lease carrying amount of $936 million at September 30, 2016 . (4) Excluded from this table is the operating lease carrying amount of $ 734 million at September 30, 2016 . 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, 2015 are as follows: December 31, 2015 Carrying Amount Estimated Fair Value (1) Level 1 Level 2 Level 3 (In millions) Financial assets: Cash and cash equivalents $ 5,314 $ 5,314 $ 5,314 $ — $ — Trading account securities 143 143 110 — 33 Securities held to maturity 1,946 1,969 1 1,968 — Securities available for sale 22,710 22,710 508 22,194 8 Loans held for sale 448 448 — 353 95 Loans (excluding leases), net of unearned income and allowance for loan losses (2)(3) 79,140 75,399 — — 75,399 Other earning assets (4) 818 818 — 818 — Derivative assets 826 826 — 816 10 Financial liabilities: Derivative liabilities 758 758 — 758 — Deposits 98,430 98,464 — 98,464 — Short-term borrowings 10 10 — 10 — Long-term borrowings 8,349 8,615 — 5,775 2,840 Loan commitments and letters of credit 85 495 — — 495 Indemnification obligation 77 67 — — 67 _________ (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 makes adjustments for interest rates, market liquidity and credit spreads as appropriate. (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 at December 31, 2015 was $3.7 billion or 4.7 percent. (3) Excluded from this table is the capital lease carrying amount of $916 million at December 31, 2015 . (4) Excluded from this table is the operating lease carrying amount of $834 million at December 31, 2015 .

Business Segment Information (T

Business Segment Information (Tables)	9 Months Ended
	Sep. 30, 2016
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 September 30, 2016 Corporate Bank Consumer Bank Wealth Management Other Continuing Operations Discontinued Operations Consolidated (In millions) Net interest income and other financing income (loss) $ 352 $ 514 $ 43 $ (74 ) $ 835 $ — $ 835 Provision (credit) for loan losses 72 74 5 (122 ) 29 — 29 Non-interest income 130 291 107 71 599 — 599 Non-interest expense 220 532 120 62 934 (2 ) 932 Income (loss) before income taxes 190 199 25 57 471 2 473 Income tax expense (benefit) 72 76 10 (6 ) 152 1 153 Net income (loss) $ 118 $ 123 $ 15 $ 63 $ 319 $ 1 $ 320 Average assets $ 53,798 $ 34,843 $ 3,233 $ 33,955 $ 125,829 $ — $ 125,829 Three Months Ended September 30, 2015 Corporate Bank Consumer Bank Wealth Management Other Continuing Operations Discontinued Operations Consolidated (In millions) Net interest income and other financing income (loss) $ 385 $ 507 $ 41 $ (97 ) $ 836 $ — $ 836 Provision (credit) for loan losses 77 70 6 (93 ) 60 — 60 Non-interest income 112 272 104 9 497 — 497 Non-interest expense 226 522 115 32 895 6 901 Income (loss) before income taxes 194 187 24 (27 ) 378 (6 ) 372 Income tax expense (benefit) 74 71 9 (38 ) 116 (2 ) 114 Net income (loss) $ 120 $ 116 $ 15 $ 11 $ 262 $ (4 ) $ 258 Average assets $ 53,647 $ 33,710 $ 3,161 $ 32,402 $ 122,920 $ — $ 122,920 Nine Months Ended September 30, 2016 Corporate Bank Consumer Bank Wealth Management Other Continuing Operations Discontinued Operations Consolidated (In millions) Net interest income and other financing income (loss) $ 1,087 $ 1,529 $ 131 $ (202 ) $ 2,545 $ — $ 2,545 Provision (credit) for loan losses 216 215 17 (234 ) 214 — 214 Non-interest income 380 831 321 99 1,631 — 1,631 Non-interest expense 645 1,552 350 171 2,718 (7 ) 2,711 Income (loss) before income taxes 606 593 85 (40 ) 1,244 7 1,251 Income tax expense (benefit) 230 225 33 (108 ) 380 3 383 Net income (loss) $ 376 $ 368 $ 52 $ 68 $ 864 $ 4 $ 868 Average assets $ 54,420 $ 34,373 $ 3,235 $ 33,706 $ 125,734 $ — $ 125,734 Nine Months Ended September 30, 2015 Corporate Bank Consumer Bank Wealth Management Other Continuing Operations Discontinued Operations Consolidated (In millions) Net interest income and other financing income (loss) $ 1,141 $ 1,510 $ 125 $ (305 ) $ 2,471 $ — $ 2,471 Provision (credit) for loan losses 225 206 17 (276 ) 172 — 172 Non-interest income 318 806 303 130 1,557 — 1,557 Non-interest expense 662 1,547 335 190 2,734 16 2,750 Income (loss) before income taxes 572 563 76 (89 ) 1,122 (16 ) 1,106 Income tax expense (benefit) 218 214 29 (126 ) 335 (6 ) 329 Net income (loss) $ 354 $ 349 $ 47 $ 37 $ 787 $ (10 ) $ 777 Average assets $ 53,016 $ 33,288 $ 3,150 $ 32,008 $ 121,462 $ — $ 121,462

Commitments, Contingencies an37

Commitments, Contingencies and Guarantees (Tables)	9 Months Ended
	Sep. 30, 2016
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: September 30, 2016 December 31, 2015 (In millions) Unused commitments to extend credit $ 44,330 $ 45,516 Standby letters of credit 1,423 1,477 Commercial letters of credit 88 63 Liabilities associated with standby letters of credit 33 32 Assets associated with standby letters of credit 33 33 Reserve for unfunded credit commitments 72 52

Discontinued Operations (Schedu

Discontinued Operations (Schedule of Discontinued Operations Income Statement) (Details) - USD ($) $ / shares in Units, $ in Millions		3 Months Ended		9 Months Ended
		Sep. 30, 2016	Sep. 30, 2015	Sep. 30, 2016	Sep. 30, 2015
Non-interest expense:
Other		$ 281	$ 258	$ 781	$ 835
Total non-interest expense		934	895	2,718	2,734
Income (loss) from discontinued operations before income taxes		2	(6)	7	(16)
Income tax expense (benefit)		1	(2)	3	(6)
Income (loss) from discontinued operations, net of tax		$ 1	$ (4)	$ 4	$ (10)
Earnings (loss) per common share from discontinued operations:
Basic (in dollars per share)	[1]	$ 0	$ 0	$ 0	$ (0.01)
Diluted (in dollars per share)	[1]	$ 0	$ 0	$ 0	$ (0.01)
Discontinued Operations [Member]
Non-interest expense:
Professional and legal expenses		$ (2)	$ 7	$ (8)	$ 16
Other		0	(1)	1	0
Total non-interest expense		(2)	6	(7)	16
Income (loss) from discontinued operations before income taxes		2	(6)	7	(16)
Income tax expense (benefit)		1	(2)	3	(6)
Income (loss) from discontinued operations, net of tax		$ 1	$ (4)	$ 4	$ (10)
Earnings (loss) per common share from discontinued operations:
Basic (in dollars per share)		$ 0	$ 0	$ 0	$ (0.01)
Diluted (in dollars per share)		$ 0	$ 0	$ 0	$ (0.01)
[1]	Certain per share amounts may not appear to reconcile due to rounding.

Securities (Schedule Of Amortiz

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		Sep. 30, 2016	Dec. 31, 2015
Schedule of Held-to-maturity Securities [Line Items]
Securities held to maturity, amortized cost		$ 1,487	$ 2,022
Held To Maturity Securities Gross Unrealized Gains Recognized in OCI	[1]	0	0
Held To Maturity Securities Gross Unrealized Losses Recognized in OCI	[1]	(56)	(76)
Held-to-maturity Securities		1,431	1,946
Held-to-maturity Securities, Accumulated Unrecognized Holding Gain		54	27
Held-to-maturity Securities, Accumulated Unrecognized Holding Loss		0	(4)
Securities held to maturity, estimated fair value		1,485	1,969
Schedule of Available-for-sale Securities [Line Items]
Available-for-sale Securities, Amortized Cost Basis		23,399	22,724
Available For Sale Securities Gross Unrealized Gains Recognized in OCI		492	185
Available For Sale Securities Gross Unrealized Losses Recognized in OCI		(32)	(199)
Available-for-sale securities, net carrying value		23,859	22,710
Securities available for sale		23,859	22,710
US Treasury Securities [Member]
Schedule of Available-for-sale Securities [Line Items]
Available-for-sale Securities, Amortized Cost Basis		237	228
Available For Sale Securities Gross Unrealized Gains Recognized in OCI		5	1
Available For Sale Securities Gross Unrealized Losses Recognized in OCI		0	(1)
Available-for-sale securities, net carrying value		242	228
Securities available for sale		242	228
Federal Agency Securities [Member]
Schedule of Available-for-sale Securities [Line Items]
Available-for-sale Securities, Amortized Cost Basis		37	219
Available For Sale Securities Gross Unrealized Gains Recognized in OCI		1	0
Available For Sale Securities Gross Unrealized Losses Recognized in OCI		0	(1)
Available-for-sale securities, net carrying value		38	218
Securities available for sale		38	218
Obligations of States and Political Subdivisions [Member]
Schedule of Available-for-sale Securities [Line Items]
Available-for-sale Securities, Amortized Cost Basis			1
Available For Sale Securities Gross Unrealized Gains Recognized in OCI			0
Available For Sale Securities Gross Unrealized Losses Recognized in OCI			0
Available-for-sale securities, net carrying value			1
Securities available for sale			1
Residential Agency [Member]
Schedule of Held-to-maturity Securities [Line Items]
Securities held to maturity, amortized cost		1,316
Securities held to maturity, estimated fair value		1,317
Schedule of Available-for-sale Securities [Line Items]
Available-for-sale Securities, Amortized Cost Basis		17,189	16,003
Available For Sale Securities Gross Unrealized Gains Recognized in OCI		328	149
Available For Sale Securities Gross Unrealized Losses Recognized in OCI		(11)	(90)
Available-for-sale securities, net carrying value		17,506	16,062
Securities available for sale		17,506	16,062
Residential Non Agency [Member]
Schedule of Available-for-sale Securities [Line Items]
Available-for-sale Securities, Amortized Cost Basis		4	5
Available For Sale Securities Gross Unrealized Gains Recognized in OCI		1	0
Available For Sale Securities Gross Unrealized Losses Recognized in OCI		0	0
Available-for-sale securities, net carrying value		5	5
Securities available for sale		5	5
Commercial Agency [Member]
Schedule of Held-to-maturity Securities [Line Items]
Securities held to maturity, amortized cost		171
Securities held to maturity, estimated fair value		168
Schedule of Available-for-sale Securities [Line Items]
Available-for-sale Securities, Amortized Cost Basis		3,333	3,033
Available For Sale Securities Gross Unrealized Gains Recognized in OCI		81	10
Available For Sale Securities Gross Unrealized Losses Recognized in OCI		(1)	(25)
Available-for-sale securities, net carrying value		3,413	3,018
Securities available for sale		3,413	3,018
Commercial Non Agency [Member]
Schedule of Available-for-sale Securities [Line Items]
Available-for-sale Securities, Amortized Cost Basis		1,125	1,245
Available For Sale Securities Gross Unrealized Gains Recognized in OCI		19	3
Available For Sale Securities Gross Unrealized Losses Recognized in OCI		(3)	(17)
Available-for-sale securities, net carrying value		1,141	1,231
Securities available for sale		1,141	1,231
Corporate and other debt securities [Member]
Schedule of Available-for-sale Securities [Line Items]
Available-for-sale Securities, Amortized Cost Basis		1,304	1,718
Available For Sale Securities Gross Unrealized Gains Recognized in OCI		47	12
Available For Sale Securities Gross Unrealized Losses Recognized in OCI		(17)	(63)
Available-for-sale securities, net carrying value		1,334	1,667
Securities available for sale		1,334	1,667
Equity Securities [Member]
Schedule of Available-for-sale Securities [Line Items]
Available-for-sale Securities, Amortized Cost Basis		170	272
Available For Sale Securities Gross Unrealized Gains Recognized in OCI		10	10
Available For Sale Securities Gross Unrealized Losses Recognized in OCI		0	(2)
Available-for-sale securities, net carrying value		180	280
Securities available for sale		180	280
US Treasury Securities [Member]
Schedule of Held-to-maturity Securities [Line Items]
Securities held to maturity, amortized cost			1
Held To Maturity Securities Gross Unrealized Gains Recognized in OCI	[1]		0
Held To Maturity Securities Gross Unrealized Losses Recognized in OCI	[1]		0
Held-to-maturity Securities			1
Held-to-maturity Securities, Accumulated Unrecognized Holding Gain			0
Held-to-maturity Securities, Accumulated Unrecognized Holding Loss			0
Securities held to maturity, estimated fair value			1
Federal Agency Securities [Member]
Schedule of Held-to-maturity Securities [Line Items]
Securities held to maturity, amortized cost			350
Held To Maturity Securities Gross Unrealized Gains Recognized in OCI	[1]		0
Held To Maturity Securities Gross Unrealized Losses Recognized in OCI	[1]		(10)
Held-to-maturity Securities			340
Held-to-maturity Securities, Accumulated Unrecognized Holding Gain			9
Held-to-maturity Securities, Accumulated Unrecognized Holding Loss			0
Securities held to maturity, estimated fair value			349
Residential Agency [Member]
Schedule of Held-to-maturity Securities [Line Items]
Securities held to maturity, amortized cost		1,316	1,490
Held To Maturity Securities Gross Unrealized Gains Recognized in OCI	[1]	0	0
Held To Maturity Securities Gross Unrealized Losses Recognized in OCI	[1]	(52)	(61)
Held-to-maturity Securities		1,264	1,429
Held-to-maturity Securities, Accumulated Unrecognized Holding Gain		53	18
Held-to-maturity Securities, Accumulated Unrecognized Holding Loss		0	(2)
Securities held to maturity, estimated fair value		1,317	1,445
Commercial Agency [Member]
Schedule of Held-to-maturity Securities [Line Items]
Securities held to maturity, amortized cost		171	181
Held To Maturity Securities Gross Unrealized Gains Recognized in OCI	[1]	0	0
Held To Maturity Securities Gross Unrealized Losses Recognized in OCI	[1]	(4)	(5)
Held-to-maturity Securities		167	176
Held-to-maturity Securities, Accumulated Unrecognized Holding Gain		1	0
Held-to-maturity Securities, Accumulated Unrecognized Holding Loss		0	(2)
Securities held to maturity, estimated fair value		$ 168	$ 174
[1]	The gross unrealized losses recognized in other comprehensive income (OCI) on held to maturity securities resulted from a transfer of available for sale securities to held to maturity in the second quarter of 2013.

Securities (Schedule Of Cost An

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	Sep. 30, 2016	Dec. 31, 2015
Securities held to maturity, amortized cost	$ 1,487	$ 2,022
Securities held to maturity, estimated fair value	1,485	1,969
Securities available for sale due in one year or less, amortized cost	52
Securities available for sale due in one year or less, estimated fair value	52
Securities available for sale due after one year through five years, amortized cost	463
Securities available for sale due after one year through five years, estimated fair value	475
Securities available for sale due after five years through ten years, amortized cost	808
Securities available for sale due after five years through ten years, estimated fair value	836
Securities available for sale due after ten years, amortized cost	255
Securities available for sale due after ten years, estimated fair value	251
Available-for-sale Securities, Amortized Cost Basis	23,399	22,724
Securities available for sale, estimated fair value	23,859	22,710
Residential Agency [Member]
Securities held to maturity, amortized cost	1,316
Securities held to maturity, estimated fair value	1,317
Available-for-sale Securities, Amortized Cost Basis	17,189	16,003
Securities available for sale, estimated fair value	17,506	16,062
Residential Non Agency [Member]
Available-for-sale Securities, Amortized Cost Basis	4	5
Securities available for sale, estimated fair value	5	5
Commercial Agency [Member]
Securities held to maturity, amortized cost	171
Securities held to maturity, estimated fair value	168
Available-for-sale Securities, Amortized Cost Basis	3,333	3,033
Securities available for sale, estimated fair value	3,413	3,018
Commercial Non Agency [Member]
Available-for-sale Securities, Amortized Cost Basis	1,125	1,245
Securities available for sale, estimated fair value	1,141	1,231
Equity Securities [Member]
Available-for-sale Securities, Amortized Cost Basis	170	272
Securities available for sale, estimated fair value	$ 180	$ 280

Securities (Schedule Of Gross U

Securities (Schedule Of Gross Unrealized Losses And Estimated Fair Value Of Securities Available For Sale and Held to Maturity) (Details) - USD ($) $ in Millions	Sep. 30, 2016	Dec. 31, 2015
Unrealized Loss And Fair Value On Securities [Line Items]
Securities held to maturity, continuous unrealized loss position, less than twelve months, estimated fair value	$ 0	$ 520
Securities held to maturity, continuous unrealized loss position, less than twelve months, gross unrealized losses	0	(8)
Securities held to maturity, continuous unrealized loss position, twelve months or longer, estimated fair value	557	1,295
Securities held to maturity, continuous unrealized loss position, twelve months or longer, gross unrealized losses	(7)	(45)
Securities held to maturity, continuous unrealized loss position, estimated fair value	557	1,815
Securities held to maturity, continuous unrealized loss position, gross unrealized losses	(7)	(53)
Securities available for sale, continuous unrealized loss position, less than twelve months, estimated fair value	1,897	11,357
Securities available for sale, continuous unrealized loss position, less than twelve months, gross unrealized losses	(6)	(142)
Securities available for sale, continuous unrealized loss position, twelve months or longer, estimated fair value	1,152	1,650
Securities available for sale, continuous unrealized loss position, twelve months or longer, gross unrealized losses	(26)	(57)
Securities available for sale, continuous unrealized loss position, estimated fair value	3,049	13,007
Securities available for sale, continuous unrealized loss position, gross unrealized losses	(32)	(199)
US Treasury Securities [Member]
Unrealized Loss And Fair Value On Securities [Line Items]
Securities available for sale, continuous unrealized loss position, less than twelve months, estimated fair value	4	59
Securities available for sale, continuous unrealized loss position, less than twelve months, gross unrealized losses	0	(1)
Securities available for sale, continuous unrealized loss position, twelve months or longer, estimated fair value	2	8
Securities available for sale, continuous unrealized loss position, twelve months or longer, gross unrealized losses	0	0
Securities available for sale, continuous unrealized loss position, estimated fair value	6	67
Securities available for sale, continuous unrealized loss position, gross unrealized losses	0	(1)
Federal Agency Securities [Member]
Unrealized Loss And Fair Value On Securities [Line Items]
Securities held to maturity, continuous unrealized loss position, less than twelve months, estimated fair value		198
Securities held to maturity, continuous unrealized loss position, less than twelve months, gross unrealized losses		(1)
Securities held to maturity, continuous unrealized loss position, twelve months or longer, estimated fair value		0
Securities held to maturity, continuous unrealized loss position, twelve months or longer, gross unrealized losses		0
Securities held to maturity, continuous unrealized loss position, estimated fair value		198
Securities held to maturity, continuous unrealized loss position, gross unrealized losses		(1)
Securities available for sale, continuous unrealized loss position, less than twelve months, estimated fair value	0	74
Securities available for sale, continuous unrealized loss position, less than twelve months, gross unrealized losses	0	0
Securities available for sale, continuous unrealized loss position, twelve months or longer, estimated fair value	2	7
Securities available for sale, continuous unrealized loss position, twelve months or longer, gross unrealized losses	0	0
Securities available for sale, continuous unrealized loss position, estimated fair value	2	81
Securities available for sale, continuous unrealized loss position, gross unrealized losses	0	0
Residential Agency [Member]
Unrealized Loss And Fair Value On Securities [Line Items]
Securities held to maturity, continuous unrealized loss position, less than twelve months, estimated fair value	0	322
Securities held to maturity, continuous unrealized loss position, less than twelve months, gross unrealized losses	0	(7)
Securities held to maturity, continuous unrealized loss position, twelve months or longer, estimated fair value	388	1,121
Securities held to maturity, continuous unrealized loss position, twelve months or longer, gross unrealized losses	(4)	(38)
Securities held to maturity, continuous unrealized loss position, estimated fair value	388	1,443
Securities held to maturity, continuous unrealized loss position, gross unrealized losses	(4)	(45)
Securities available for sale, continuous unrealized loss position, less than twelve months, estimated fair value	1,491	8,037
Securities available for sale, continuous unrealized loss position, less than twelve months, gross unrealized losses	(4)	(73)
Securities available for sale, continuous unrealized loss position, twelve months or longer, estimated fair value	604	791
Securities available for sale, continuous unrealized loss position, twelve months or longer, gross unrealized losses	(7)	(17)
Securities available for sale, continuous unrealized loss position, estimated fair value	2,095	8,828
Securities available for sale, continuous unrealized loss position, gross unrealized losses	(11)	(90)
Residential Non Agency [Member]
Unrealized Loss And Fair Value On Securities [Line Items]
Securities available for sale, continuous unrealized loss position, less than twelve months, estimated fair value	3	3
Securities available for sale, continuous unrealized loss position, less than twelve months, gross unrealized losses	0	0
Securities available for sale, continuous unrealized loss position, twelve months or longer, estimated fair value	0	0
Securities available for sale, continuous unrealized loss position, twelve months or longer, gross unrealized losses	0	0
Securities available for sale, continuous unrealized loss position, estimated fair value	3	3
Securities available for sale, continuous unrealized loss position, gross unrealized losses	0	0
Commercial Agency [Member]
Unrealized Loss And Fair Value On Securities [Line Items]
Securities held to maturity, continuous unrealized loss position, less than twelve months, estimated fair value	0	0
Securities held to maturity, continuous unrealized loss position, less than twelve months, gross unrealized losses	0	0
Securities held to maturity, continuous unrealized loss position, twelve months or longer, estimated fair value	169	174
Securities held to maturity, continuous unrealized loss position, twelve months or longer, gross unrealized losses	(3)	(7)
Securities held to maturity, continuous unrealized loss position, estimated fair value	169	174
Securities held to maturity, continuous unrealized loss position, gross unrealized losses	(3)	(7)
Securities available for sale, continuous unrealized loss position, less than twelve months, estimated fair value	282	1,695
Securities available for sale, continuous unrealized loss position, less than twelve months, gross unrealized losses	(1)	(20)
Securities available for sale, continuous unrealized loss position, twelve months or longer, estimated fair value	46	273
Securities available for sale, continuous unrealized loss position, twelve months or longer, gross unrealized losses	0	(5)
Securities available for sale, continuous unrealized loss position, estimated fair value	328	1,968
Securities available for sale, continuous unrealized loss position, gross unrealized losses	(1)	(25)
Commercial Non Agency [Member]
Unrealized Loss And Fair Value On Securities [Line Items]
Securities available for sale, continuous unrealized loss position, less than twelve months, estimated fair value	94	684
Securities available for sale, continuous unrealized loss position, less than twelve months, gross unrealized losses	(1)	(12)
Securities available for sale, continuous unrealized loss position, twelve months or longer, estimated fair value	245	264
Securities available for sale, continuous unrealized loss position, twelve months or longer, gross unrealized losses	(2)	(6)
Securities available for sale, continuous unrealized loss position, estimated fair value	339	948
Securities available for sale, continuous unrealized loss position, gross unrealized losses	(3)	(18)
All Other Securities [Member]
Unrealized Loss And Fair Value On Securities [Line Items]
Securities available for sale, continuous unrealized loss position, less than twelve months, estimated fair value	23	805
Securities available for sale, continuous unrealized loss position, less than twelve months, gross unrealized losses	0	(36)
Securities available for sale, continuous unrealized loss position, twelve months or longer, estimated fair value	253	307
Securities available for sale, continuous unrealized loss position, twelve months or longer, gross unrealized losses	(17)	(29)
Securities available for sale, continuous unrealized loss position, estimated fair value	276	1,112
Securities available for sale, continuous unrealized loss position, gross unrealized losses	$ (17)	$ (65)

Securities (Schedule Of Gross R

Securities (Schedule Of Gross Realized Gains And Gross Realized Losses On Available For Sale Securities) (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2016	Sep. 30, 2015	Sep. 30, 2016	Sep. 30, 2015
Investments, Debt and Equity Securities [Abstract]
Gross realized gains	$ 1	$ 15	$ 30	$ 29
Gross realized losses	(1)	(2)	(28)	(5)
Other than temporary impairment	0	(6)	(1)	(6)
Securities gains (losses), net	$ 0	$ 7	$ 1	$ 18

Securities (Narrative) (Details

Securities (Narrative) (Details) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2016USD ($)security	Sep. 30, 2015USD ($)	Sep. 30, 2016USD ($)security	Sep. 30, 2015USD ($)	Dec. 31, 2015USD ($)security
Schedule of Available-for-sale Securities [Line Items]
Securities pledged as collateral	$ 10,900		$ 10,900		$ 11,900
Number of individual positions in unrealized loss position | security	520		520		1,081
Other than temporary impairment	$ 0	$ 6	$ 1	$ 6
US Treasury Securities [Member]
Schedule of Available-for-sale Securities [Line Items]
Securities pledged as collateral	$ 51		$ 51		$ 50

Loans and the Allowance for C44

Loans and the Allowance for Credit Losses (Schedule Of Loan Portfolio, Net Of Unearned Income) (Details) - USD ($) $ in Millions	Sep. 30, 2016	Dec. 31, 2015	Sep. 30, 2015
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans, net of unearned income	$ 80,883	$ 81,162	$ 81,063
Commercial And Industrial [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans, net of unearned income	35,388	35,821
Commercial Real Estate Mortgage - Owner-Occupied [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans, net of unearned income	7,007	7,538
Commercial Real Estate Construction - Owner-Occupied [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans, net of unearned income	349	423
Commercial Investor Real Estate Mortgage [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans, net of unearned income	4,306	4,255
Commercial Investor Real Estate Construction [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans, net of unearned income	2,458	2,692
Residential First Mortgage [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans, net of unearned income	13,402	12,811
Home Equity [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans, net of unearned income	10,749	10,978
Indirect-vehicles [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans, net of unearned income	4,076	3,984
Indirect-other consumer [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans, net of unearned income	838	545
Consumer Credit Card Financing Receivable [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans, net of unearned income	1,123	1,075
Other consumer
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans, net of unearned income	1,187	1,040
Commercial Portfolio Segment [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans, net of unearned income	42,744	43,782	44,053
Total Investor Real Estate [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans, net of unearned income	6,764	6,947	6,911
Consumer Portfolio Segment [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans, net of unearned income	$ 31,375	$ 30,433	$ 30,099

Loans and the Allowance for C45

Loans and the Allowance for Credit Losses (Analysis of the Allowance for Credit Losses by Portfolio Segment) (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2016	Sep. 30, 2015	Sep. 30, 2016	Sep. 30, 2015	Dec. 31, 2015
Allowance for Loan and Lease Losses [Roll Forward]
Allowance for loan losses, beginning of period	$ 1,151	$ 1,115	$ 1,106	$ 1,103
Provision (credit) for loan and lease losses	29	60	214	172
Loan losses:
Charge-offs	(94)	(95)	(288)	(282)
Recoveries	40	35	94	122
Net loan losses	(54)	(60)	(194)	(160)
Total allowance for loan losses	1,126	1,115	1,126	1,115
Reserve For Unfunded Credit Commitments [Roll Forward]
Reserve For Unfunded Credit Commitments, beginning of period	64	64	52	65
Provision (credit) for unfunded credit losses	8	0	20	(1)
Reserve For Unfunded Credit Commitments, end of period	72	64	72	64
Allowance for Credit Losses, end of period	1,198	1,179	1,198	1,179
Portion of ending allowance for loan losses:
Allowance Individually Evaluated for Impairment	333	284	333	284
Allowance Collectively Evaluated for Impairment	793	831	793	831
Total allowance for loan losses	1,126	1,115	1,126	1,115
Portion of loan portfolio ending balance:
Loans Individually Evaluated for Impairment	2,044	1,782	2,044	1,782
Loans Collectively Evaluated for Impairment	78,839	79,281	78,839	79,281
Loans, net of unearned income	80,883	81,063	80,883	81,063	$ 81,162
Commercial Portfolio Segment [Member]
Allowance for Loan and Lease Losses [Roll Forward]
Allowance for loan losses, beginning of period	825	740	758	654
Provision (credit) for loan and lease losses	(15)	32	108	142
Loan losses:
Charge-offs	(31)	(33)	(102)	(92)
Recoveries	19	14	34	49
Net loan losses	(12)	(19)	(68)	(43)
Total allowance for loan losses	798	753	798	753
Reserve For Unfunded Credit Commitments [Roll Forward]
Reserve For Unfunded Credit Commitments, beginning of period	59	59	47	57
Provision (credit) for unfunded credit losses	8	0	20	2
Reserve For Unfunded Credit Commitments, end of period	67	59	67	59
Allowance for Credit Losses, end of period	865	812	865	812
Portion of ending allowance for loan losses:
Allowance Individually Evaluated for Impairment	252	187	252	187
Allowance Collectively Evaluated for Impairment	546	566	546	566
Total allowance for loan losses	798	753	798	753
Portion of loan portfolio ending balance:
Loans Individually Evaluated for Impairment	1,119	744	1,119	744
Loans Collectively Evaluated for Impairment	41,625	43,309	41,625	43,309
Loans, net of unearned income	42,744	44,053	42,744	44,053	43,782
Total Investor Real Estate [Member]
Allowance for Loan and Lease Losses [Roll Forward]
Allowance for loan losses, beginning of period	87	123	97	150
Provision (credit) for loan and lease losses	(7)	(16)	(21)	(44)
Loan losses:
Charge-offs	(1)	(3)	(2)	(15)
Recoveries	5	5	10	18
Net loan losses	4	2	8	3
Total allowance for loan losses	84	109	84	109
Reserve For Unfunded Credit Commitments [Roll Forward]
Reserve For Unfunded Credit Commitments, beginning of period	5	5	5	8
Provision (credit) for unfunded credit losses	0	0	0	(3)
Reserve For Unfunded Credit Commitments, end of period	5	5	5	5
Allowance for Credit Losses, end of period	89	114	89	114
Portion of ending allowance for loan losses:
Allowance Individually Evaluated for Impairment	19	27	19	27
Allowance Collectively Evaluated for Impairment	65	82	65	82
Total allowance for loan losses	84	109	84	109
Portion of loan portfolio ending balance:
Loans Individually Evaluated for Impairment	140	192	140	192
Loans Collectively Evaluated for Impairment	6,624	6,719	6,624	6,719
Loans, net of unearned income	6,764	6,911	6,764	6,911	6,947
Consumer Portfolio Segment [Member]
Allowance for Loan and Lease Losses [Roll Forward]
Allowance for loan losses, beginning of period	239	252	251	299
Provision (credit) for loan and lease losses	51	44	127	74
Loan losses:
Charge-offs	(62)	(59)	(184)	(175)
Recoveries	16	16	50	55
Net loan losses	(46)	(43)	(134)	(120)
Total allowance for loan losses	244	253	244	253
Reserve For Unfunded Credit Commitments [Roll Forward]
Reserve For Unfunded Credit Commitments, beginning of period	0	0	0	0
Provision (credit) for unfunded credit losses	0	0	0	0
Reserve For Unfunded Credit Commitments, end of period	0	0	0	0
Allowance for Credit Losses, end of period	244	253	244	253
Portion of ending allowance for loan losses:
Allowance Individually Evaluated for Impairment	62	70	62	70
Allowance Collectively Evaluated for Impairment	182	183	182	183
Total allowance for loan losses	244	253	244	253
Portion of loan portfolio ending balance:
Loans Individually Evaluated for Impairment	785	846	785	846
Loans Collectively Evaluated for Impairment	30,590	29,253	30,590	29,253
Loans, net of unearned income	$ 31,375	$ 30,099	$ 31,375	$ 30,099	$ 30,433

Loans and the Allowance for C46

Loans and the Allowance for Credit Losses (Credit Quality Indicators) (Details) - USD ($) $ in Millions	Sep. 30, 2016	Dec. 31, 2015	Sep. 30, 2015
Financing Receivable, Recorded Investment [Line Items]
Loans, net of unearned income	$ 80,883	$ 81,162	$ 81,063
Commercial And Industrial [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans, net of unearned income	35,388	35,821
Commercial Real Estate Mortgage - Owner-Occupied [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans, net of unearned income	7,007	7,538
Commercial Real Estate Construction - Owner-Occupied [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans, net of unearned income	349	423
Commercial Investor Real Estate Mortgage [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans, net of unearned income	4,306	4,255
Commercial Investor Real Estate Construction [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans, net of unearned income	2,458	2,692
Residential First Mortgage [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans, net of unearned income	13,402	12,811
Home Equity [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans, net of unearned income	10,749	10,978
Indirect-vehicles [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans, net of unearned income	4,076	3,984
Indirect-other consumer [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans, net of unearned income	838	545
Consumer Credit Card Financing Receivable [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans, net of unearned income	1,123	1,075
Other consumer
Financing Receivable, Recorded Investment [Line Items]
Loans, net of unearned income	1,187	1,040
Pass [Member] | Commercial And Industrial [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans, net of unearned income	32,854	33,639
Pass [Member] | Commercial Real Estate Mortgage - Owner-Occupied [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans, net of unearned income	6,288	6,750
Pass [Member] | Commercial Real Estate Construction - Owner-Occupied [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans, net of unearned income	326	385
Pass [Member] | Commercial Investor Real Estate Mortgage [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans, net of unearned income	4,056	3,926
Pass [Member] | Commercial Investor Real Estate Construction [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans, net of unearned income	2,242	2,658
Special Mention [Member] | Commercial And Industrial [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans, net of unearned income	744	963
Special Mention [Member] | Commercial Real Estate Mortgage - Owner-Occupied [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans, net of unearned income	257	306
Special Mention [Member] | Commercial Real Estate Construction - Owner-Occupied [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans, net of unearned income	10	21
Special Mention [Member] | Commercial Investor Real Estate Mortgage [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans, net of unearned income	129	140
Special Mention [Member] | Commercial Investor Real Estate Construction [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans, net of unearned income	189	4
Substandard [Member] | Commercial And Industrial [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans, net of unearned income	1,097	894
Substandard [Member] | Commercial Real Estate Mortgage - Owner-Occupied [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans, net of unearned income	241	214
Substandard [Member] | Commercial Real Estate Construction - Owner-Occupied [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans, net of unearned income	10	15
Substandard [Member] | Commercial Investor Real Estate Mortgage [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans, net of unearned income	103	158
Substandard [Member] | Commercial Investor Real Estate Construction [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans, net of unearned income	26	30
Accrual [Member] | Residential First Mortgage [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans, net of unearned income	13,352	12,748
Accrual [Member] | Home Equity [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans, net of unearned income	10,657	10,885
Accrual [Member] | Indirect-vehicles [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans, net of unearned income	4,076	3,984
Accrual [Member] | Indirect-other consumer [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans, net of unearned income	838	545
Accrual [Member] | Consumer Credit Card Financing Receivable [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans, net of unearned income	1,123	1,075
Accrual [Member] | Other consumer
Financing Receivable, Recorded Investment [Line Items]
Loans, net of unearned income	1,187	1,040
Non Accrual [Member] | Commercial And Industrial [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans, net of unearned income	693	325
Non Accrual [Member] | Commercial Real Estate Mortgage - Owner-Occupied [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans, net of unearned income	221	268
Non Accrual [Member] | Commercial Real Estate Construction - Owner-Occupied [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans, net of unearned income	3	2
Non Accrual [Member] | Commercial Investor Real Estate Mortgage [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans, net of unearned income	18	31
Non Accrual [Member] | Commercial Investor Real Estate Construction [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans, net of unearned income	1	0
Non Accrual [Member] | Residential First Mortgage [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans, net of unearned income	50	63
Non Accrual [Member] | Home Equity [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans, net of unearned income	92	93
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	42,744	43,782	44,053
Commercial Portfolio Segment [Member] | Pass [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans, net of unearned income	39,468	40,774
Commercial Portfolio Segment [Member] | Special Mention [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans, net of unearned income	1,011	1,290
Commercial Portfolio Segment [Member] | Substandard [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans, net of unearned income	1,348	1,123
Commercial Portfolio Segment [Member] | Non Accrual [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans, net of unearned income	917	595
Total Investor Real Estate [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans, net of unearned income	6,764	6,947	6,911
Total Investor Real Estate [Member] | Pass [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans, net of unearned income	6,298	6,584
Total Investor Real Estate [Member] | Special Mention [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans, net of unearned income	318	144
Total Investor Real Estate [Member] | Substandard [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans, net of unearned income	129	188
Total Investor Real Estate [Member] | Non Accrual [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans, net of unearned income	19	31
Consumer Portfolio Segment [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans, net of unearned income	31,375	30,433	$ 30,099
Consumer Portfolio Segment [Member] | Accrual [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans, net of unearned income	31,233	30,277
Consumer Portfolio Segment [Member] | Non Accrual [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans, net of unearned income	$ 142	$ 156

Loans and the Allowance for C47

Loans and the Allowance for Credit Losses (Schedule of Aging Analysis Of Days Past Due (DPD) For Each Portfolio Class) (Details) - USD ($) $ in Millions	Sep. 30, 2016	Dec. 31, 2015	Sep. 30, 2015
Financing Receivable, Recorded Investment, Past Due [Line Items]
90 plus DPD, Accrual Loans	$ 277	$ 320
Total 30 plus DPD, Accrual Loans	685	723
Total Accrual	79,805	80,380
Nonaccrual	1,078	782
Loans, net of unearned income	80,883	81,162	$ 81,063
Commercial And Industrial [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
90 plus DPD, Accrual Loans	5	9
Total 30 plus DPD, Accrual Loans	26	26
Total Accrual	34,695	35,496
Nonaccrual	693	325
Loans, net of unearned income	35,388	35,821
Commercial Real Estate Mortgage - Owner-Occupied [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
90 plus DPD, Accrual Loans	3	3
Total 30 plus DPD, Accrual Loans	62	34
Total Accrual	6,786	7,270
Nonaccrual	221	268
Loans, net of unearned income	7,007	7,538
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	2	1
Total Accrual	346	421
Nonaccrual	3	2
Loans, net of unearned income	349	423
Commercial Portfolio Segment [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
90 plus DPD, Accrual Loans	8	12
Total 30 plus DPD, Accrual Loans	90	61
Total Accrual	41,827	43,187
Nonaccrual	917	595
Loans, net of unearned income	42,744	43,782
Commercial Investor Real Estate Mortgage [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
90 plus DPD, Accrual Loans	0	4
Total 30 plus DPD, Accrual Loans	6	31
Total Accrual	4,288	4,224
Nonaccrual	18	31
Loans, net of unearned income	4,306	4,255
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	0	2
Total Accrual	2,457	2,692
Nonaccrual	1	0
Loans, net of unearned income	2,458	2,692
Total Investor Real Estate [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
90 plus DPD, Accrual Loans	0	4
Total 30 plus DPD, Accrual Loans	6	33
Total Accrual	6,745	6,916
Nonaccrual	19	31
Loans, net of unearned income	6,764	6,947
Residential First Mortgage [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
90 plus DPD, Accrual Loans	205	220
Total 30 plus DPD, Accrual Loans	350	368
Total Accrual	13,352	12,748
Nonaccrual	50	63
Loans, net of unearned income	13,402	12,811
Home Equity [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
90 plus DPD, Accrual Loans	39	59
Total 30 plus DPD, Accrual Loans	118	143
Total Accrual	10,657	10,885
Nonaccrual	92	93
Loans, net of unearned income	10,749	10,978
Indirect-vehicles [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
90 plus DPD, Accrual Loans	9	9
Total 30 plus DPD, Accrual Loans	66	72
Total Accrual	4,076	3,984
Nonaccrual	0	0
Loans, net of unearned income	4,076	3,984
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	5	3
Total Accrual	838	545
Nonaccrual	0	0
Loans, net of unearned income	838	545
Consumer Credit Card Financing Receivable [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
90 plus DPD, Accrual Loans	13	12
Total 30 plus DPD, Accrual Loans	28	24
Total Accrual	1,123	1,075
Nonaccrual	0	0
Loans, net of unearned income	1,123	1,075
Other consumer
Financing Receivable, Recorded Investment, Past Due [Line Items]
90 plus DPD, Accrual Loans	3	4
Total 30 plus DPD, Accrual Loans	22	19
Total Accrual	1,187	1,040
Nonaccrual	0	0
Loans, net of unearned income	1,187	1,040
Consumer Portfolio Segment [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
90 plus DPD, Accrual Loans	269	304
Total 30 plus DPD, Accrual Loans	589	629
Total Accrual	31,233	30,277
Nonaccrual	142	156
Loans, net of unearned income	31,375	30,433
Financing Receivables, 60 to 89 Days Past Due [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total 30 plus DPD, Accrual Loans	126	137
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	7	6
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	9	7
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	1	1
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	17	14
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	1	13
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	0	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	1	13
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	58	60
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	25	26
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	11	14
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	2	1
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	5
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	5	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	108	110
Financing Receivables, 30 to 59 Days Past Due [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total 30 plus DPD, Accrual Loans	282	266
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	14	11
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	50	24
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	1	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	65	35
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	5	14
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	2
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	5	16
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	87	88
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	54	58
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	46	49
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	3	2
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	8	7
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	14	11
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	$ 212	$ 215

Loans and the Allowance for C48

Loans and the Allowance for Credit Losses (Impaired Financing Receivables) (Details) - USD ($) $ in Millions		3 Months Ended		9 Months Ended
		Sep. 30, 2016	Sep. 30, 2015	Sep. 30, 2016	Sep. 30, 2015	Dec. 31, 2015
Financing Receivable, Impaired [Line Items]
Impaired Financing Receivable, Unpaid Principal Balance	[1]	$ 2,155		$ 2,155		$ 1,878
Impaired Financing Receivable Chargeoffs And Payments Applied	[2]	111		111		109
Impaired Financing Receivable, Recorded Investment	[3]	2,044		2,044		1,769
Impaired Financing Receivable, with No Related Allowance, Recorded Investment	[3]	124		124		75
Impaired Financing Receivable, with Related Allowance, Recorded Investment	[3]	1,920		1,920		1,694
Impaired Financing Receivable, Related Allowance		$ 333		$ 333		$ 283
Impaired Financing Receivable, Coverage Percentage	[4]	20.60%		20.60%		20.90%
Impaired Financing Receivable, Average Recorded Investment		$ 2,063	$ 1,774	$ 1,960	$ 1,875
Impaired Financing Receivable, Interest Income Recognized		12	14	37	46
Commercial And Industrial [Member]
Financing Receivable, Impaired [Line Items]
Impaired Financing Receivable, Unpaid Principal Balance	[1]	883		883		$ 431
Impaired Financing Receivable Chargeoffs And Payments Applied	[2]	51		51		42
Impaired Financing Receivable, Recorded Investment	[3]	832		832		389
Impaired Financing Receivable, with No Related Allowance, Recorded Investment	[3]	81		81		26
Impaired Financing Receivable, with Related Allowance, Recorded Investment	[3]	751		751		363
Impaired Financing Receivable, Related Allowance		$ 188		$ 188		$ 111
Impaired Financing Receivable, Coverage Percentage	[4]	27.10%		27.10%		35.50%
Impaired Financing Receivable, Average Recorded Investment		$ 816	379	$ 670	378
Impaired Financing Receivable, Interest Income Recognized		1	1	4	4
Commercial Real Estate Mortgage - Owner-Occupied [Member]
Financing Receivable, Impaired [Line Items]
Impaired Financing Receivable, Unpaid Principal Balance	[1]	307		307		$ 375
Impaired Financing Receivable Chargeoffs And Payments Applied	[2]	23		23		24
Impaired Financing Receivable, Recorded Investment	[3]	284		284		351
Impaired Financing Receivable, with No Related Allowance, Recorded Investment	[3]	38		38		36
Impaired Financing Receivable, with Related Allowance, Recorded Investment	[3]	246		246		315
Impaired Financing Receivable, Related Allowance		$ 62		$ 62		$ 77
Impaired Financing Receivable, Coverage Percentage	[4]	27.70%		27.70%		26.90%
Impaired Financing Receivable, Average Recorded Investment		$ 296	322	$ 313	350
Impaired Financing Receivable, Interest Income Recognized		1	2	3	7
Commercial Real Estate Construction - Owner-Occupied [Member]
Financing Receivable, Impaired [Line Items]
Impaired Financing Receivable, Unpaid Principal Balance	[1]	4		4		$ 3
Impaired Financing Receivable Chargeoffs And Payments Applied	[2]	1		1		0
Impaired Financing Receivable, Recorded Investment	[3]	3		3		3
Impaired Financing Receivable, with No Related Allowance, Recorded Investment	[3]	0		0		0
Impaired Financing Receivable, with Related Allowance, Recorded Investment	[3]	3		3		3
Impaired Financing Receivable, Related Allowance		$ 2		$ 2		$ 1
Impaired Financing Receivable, Coverage Percentage	[4]	75.00%		75.00%		33.30%
Impaired Financing Receivable, Average Recorded Investment		$ 4	4	$ 3	4
Impaired Financing Receivable, Interest Income Recognized		0	0	0	0
Commercial Portfolio Segment [Member]
Financing Receivable, Impaired [Line Items]
Impaired Financing Receivable, Unpaid Principal Balance	[1]	1,194		1,194		$ 809
Impaired Financing Receivable Chargeoffs And Payments Applied	[2]	75		75		66
Impaired Financing Receivable, Recorded Investment	[3]	1,119		1,119		743
Impaired Financing Receivable, with No Related Allowance, Recorded Investment	[3]	119		119		62
Impaired Financing Receivable, with Related Allowance, Recorded Investment	[3]	1,000		1,000		681
Impaired Financing Receivable, Related Allowance		$ 252		$ 252		$ 189
Impaired Financing Receivable, Coverage Percentage	[4]	27.40%		27.40%		31.50%
Impaired Financing Receivable, Average Recorded Investment		$ 1,116	705	$ 986	732
Impaired Financing Receivable, Interest Income Recognized		2	3	7	11
Commercial Investor Real Estate Mortgage [Member]
Financing Receivable, Impaired [Line Items]
Impaired Financing Receivable, Unpaid Principal Balance	[1]	114		114		$ 177
Impaired Financing Receivable Chargeoffs And Payments Applied	[2]	10		10		13
Impaired Financing Receivable, Recorded Investment	[3]	104		104		164
Impaired Financing Receivable, with No Related Allowance, Recorded Investment	[3]	5		5		13
Impaired Financing Receivable, with Related Allowance, Recorded Investment	[3]	99		99		151
Impaired Financing Receivable, Related Allowance		$ 15		$ 15		$ 21
Impaired Financing Receivable, Coverage Percentage	[4]	21.90%		21.90%		19.20%
Impaired Financing Receivable, Average Recorded Investment		$ 117	210	$ 128	266
Impaired Financing Receivable, Interest Income Recognized		1	2	4	8
Commercial Investor Real Estate Construction [Member]
Financing Receivable, Impaired [Line Items]
Impaired Financing Receivable, Unpaid Principal Balance	[1]	36		36		$ 27
Impaired Financing Receivable Chargeoffs And Payments Applied	[2]	0		0		0
Impaired Financing Receivable, Recorded Investment	[3]	36		36		27
Impaired Financing Receivable, with No Related Allowance, Recorded Investment	[3]	0		0		0
Impaired Financing Receivable, with Related Allowance, Recorded Investment	[3]	36		36		27
Impaired Financing Receivable, Related Allowance		$ 4		$ 4		$ 5
Impaired Financing Receivable, Coverage Percentage	[4]	11.10%		11.10%		18.50%
Impaired Financing Receivable, Average Recorded Investment		$ 36	14	$ 31	26
Impaired Financing Receivable, Interest Income Recognized		1	0	1	1
Total Investor Real Estate [Member]
Financing Receivable, Impaired [Line Items]
Impaired Financing Receivable, Unpaid Principal Balance	[1]	150		150		$ 204
Impaired Financing Receivable Chargeoffs And Payments Applied	[2]	10		10		13
Impaired Financing Receivable, Recorded Investment	[3]	140		140		191
Impaired Financing Receivable, with No Related Allowance, Recorded Investment	[3]	5		5		13
Impaired Financing Receivable, with Related Allowance, Recorded Investment	[3]	135		135		178
Impaired Financing Receivable, Related Allowance		$ 19		$ 19		$ 26
Impaired Financing Receivable, Coverage Percentage	[4]	19.30%		19.30%		19.10%
Impaired Financing Receivable, Average Recorded Investment		$ 153	224	$ 159	292
Impaired Financing Receivable, Interest Income Recognized		2	2	5	9
Residential First Mortgage [Member]
Financing Receivable, Impaired [Line Items]
Impaired Financing Receivable, Unpaid Principal Balance	[1]	484		484		$ 508
Impaired Financing Receivable Chargeoffs And Payments Applied	[2]	25		25		29
Impaired Financing Receivable, Recorded Investment	[3]	459		459		479
Impaired Financing Receivable, with No Related Allowance, Recorded Investment	[3]	0		0		0
Impaired Financing Receivable, with Related Allowance, Recorded Investment	[3]	459		459		479
Impaired Financing Receivable, Related Allowance		$ 56		$ 56		$ 61
Impaired Financing Receivable, Coverage Percentage	[4]	16.70%		16.70%		17.70%
Impaired Financing Receivable, Average Recorded Investment		$ 464	477	$ 473	476
Impaired Financing Receivable, Interest Income Recognized		4	3	12	11
Home Equity [Member]
Financing Receivable, Impaired [Line Items]
Impaired Financing Receivable, Unpaid Principal Balance	[1]	314		314		$ 342
Impaired Financing Receivable Chargeoffs And Payments Applied	[2]	1		1		1
Impaired Financing Receivable, Recorded Investment	[3]	313		313		341
Impaired Financing Receivable, with No Related Allowance, Recorded Investment	[3]	0		0		0
Impaired Financing Receivable, with Related Allowance, Recorded Investment	[3]	313		313		341
Impaired Financing Receivable, Related Allowance		$ 6		$ 6		$ 7
Impaired Financing Receivable, Coverage Percentage	[4]	2.20%		2.20%		2.30%
Impaired Financing Receivable, Average Recorded Investment		$ 317	352	$ 328	357
Impaired Financing Receivable, Interest Income Recognized		3	5	12	14
Indirect-vehicles [Member]
Financing Receivable, Impaired [Line Items]
Impaired Financing Receivable, Unpaid Principal Balance	[1]					$ 1
Impaired Financing Receivable Chargeoffs And Payments Applied	[2]					0
Impaired Financing Receivable, Recorded Investment	[3]					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
Impaired Financing Receivable, Coverage Percentage	[4]					0.00%
Impaired Financing Receivable, Average Recorded Investment		0	1	0	1
Impaired Financing Receivable, Interest Income Recognized		0	0	0	0
Consumer Credit Card Financing Receivable [Member]
Financing Receivable, Impaired [Line Items]
Impaired Financing Receivable, Unpaid Principal Balance	[1]	2		2		$ 2
Impaired Financing Receivable Chargeoffs And Payments Applied	[2]	0		0		0
Impaired Financing Receivable, Recorded Investment	[3]	2		2		2
Impaired Financing Receivable, with No Related Allowance, Recorded Investment	[3]	0		0		0
Impaired Financing Receivable, with Related Allowance, Recorded Investment	[3]	2		2		2
Impaired Financing Receivable, Related Allowance		$ 0		$ 0		$ 0
Impaired Financing Receivable, Coverage Percentage	[4]	0.00%		0.00%		0.00%
Impaired Financing Receivable, Average Recorded Investment		$ 2	2	$ 2	2
Impaired Financing Receivable, Interest Income Recognized		0	0	0	0
Other consumer
Financing Receivable, Impaired [Line Items]
Impaired Financing Receivable, Unpaid Principal Balance	[1]	11		11		$ 12
Impaired Financing Receivable Chargeoffs And Payments Applied	[2]	0		0		0
Impaired Financing Receivable, Recorded Investment	[3]	11		11		12
Impaired Financing Receivable, with No Related Allowance, Recorded Investment	[3]	0		0		0
Impaired Financing Receivable, with Related Allowance, Recorded Investment	[3]	11		11		12
Impaired Financing Receivable, Related Allowance		$ 0		$ 0		$ 0
Impaired Financing Receivable, Coverage Percentage	[4]	0.00%		0.00%		0.00%
Impaired Financing Receivable, Average Recorded Investment		$ 11	13	$ 12	15
Impaired Financing Receivable, Interest Income Recognized		1	1	1	1
Consumer Portfolio Segment [Member]
Financing Receivable, Impaired [Line Items]
Impaired Financing Receivable, Unpaid Principal Balance	[1]	811		811		$ 865
Impaired Financing Receivable Chargeoffs And Payments Applied	[2]	26		26		30
Impaired Financing Receivable, Recorded Investment	[3]	785		785		835
Impaired Financing Receivable, with No Related Allowance, Recorded Investment	[3]	0		0		0
Impaired Financing Receivable, with Related Allowance, Recorded Investment	[3]	785		785		835
Impaired Financing Receivable, Related Allowance		$ 62		$ 62		$ 68
Impaired Financing Receivable, Coverage Percentage	[4]	10.90%		10.90%		11.30%
Impaired Financing Receivable, Average Recorded Investment		$ 794	845	$ 815	851
Impaired Financing Receivable, Interest Income Recognized		8	$ 9	25	$ 26
Non Accrual [Member]
Financing Receivable, Impaired [Line Items]
Impaired Financing Receivable, Unpaid Principal Balance	[1]	1,053		1,053		$ 752
Impaired Financing Receivable Chargeoffs And Payments Applied	[2]	85		85		81
Impaired Financing Receivable, Recorded Investment	[3]	968		968		671
Impaired Financing Receivable, with No Related Allowance, Recorded Investment	[3]	124		124		75
Impaired Financing Receivable, with Related Allowance, Recorded Investment	[3]	844		844		596
Impaired Financing Receivable, Related Allowance		$ 230		$ 230		$ 180
Impaired Financing Receivable, Coverage Percentage	[4]	29.90%		29.90%		34.70%
Non Accrual [Member] | Commercial And Industrial [Member]
Financing Receivable, Impaired [Line Items]
Impaired Financing Receivable, Unpaid Principal Balance	[1]	$ 733		$ 733		$ 363
Impaired Financing Receivable Chargeoffs And Payments Applied	[2]	49		49		41
Impaired Financing Receivable, Recorded Investment	[3]	684		684		322
Impaired Financing Receivable, with No Related Allowance, Recorded Investment	[3]	81		81		26
Impaired Financing Receivable, with Related Allowance, Recorded Investment	[3]	603		603		296
Impaired Financing Receivable, Related Allowance		$ 162		$ 162		$ 98
Impaired Financing Receivable, Coverage Percentage	[4]	28.80%		28.80%		38.30%
Non Accrual [Member] | Commercial Real Estate Mortgage - Owner-Occupied [Member]
Financing Receivable, Impaired [Line Items]
Impaired Financing Receivable, Unpaid Principal Balance	[1]	$ 239		$ 239		$ 286
Impaired Financing Receivable Chargeoffs And Payments Applied	[2]	18		18		18
Impaired Financing Receivable, Recorded Investment	[3]	221		221		268
Impaired Financing Receivable, with No Related Allowance, Recorded Investment	[3]	38		38		36
Impaired Financing Receivable, with Related Allowance, Recorded Investment	[3]	183		183		232
Impaired Financing Receivable, Related Allowance		$ 56		$ 56		$ 69
Impaired Financing Receivable, Coverage Percentage	[4]	31.00%		31.00%		30.40%
Non Accrual [Member] | Commercial Real Estate Construction - Owner-Occupied [Member]
Financing Receivable, Impaired [Line Items]
Impaired Financing Receivable, Unpaid Principal Balance	[1]	$ 4		$ 4		$ 2
Impaired Financing Receivable Chargeoffs And Payments Applied	[2]	1		1		0
Impaired Financing Receivable, Recorded Investment	[3]	3		3		2
Impaired Financing Receivable, with No Related Allowance, Recorded Investment	[3]	0		0		0
Impaired Financing Receivable, with Related Allowance, Recorded Investment	[3]	3		3		2
Impaired Financing Receivable, Related Allowance		$ 2		$ 2		$ 1
Impaired Financing Receivable, Coverage Percentage	[4]	75.00%		75.00%		50.00%
Non Accrual [Member] | Commercial Portfolio Segment [Member]
Financing Receivable, Impaired [Line Items]
Impaired Financing Receivable, Unpaid Principal Balance	[1]	$ 976		$ 976		$ 651
Impaired Financing Receivable Chargeoffs And Payments Applied	[2]	68		68		59
Impaired Financing Receivable, Recorded Investment	[3]	908		908		592
Impaired Financing Receivable, with No Related Allowance, Recorded Investment	[3]	119		119		62
Impaired Financing Receivable, with Related Allowance, Recorded Investment	[3]	789		789		530
Impaired Financing Receivable, Related Allowance		$ 220		$ 220		$ 168
Impaired Financing Receivable, Coverage Percentage	[4]	29.50%		29.50%		34.90%
Non Accrual [Member] | Commercial Investor Real Estate Mortgage [Member]
Financing Receivable, Impaired [Line Items]
Impaired Financing Receivable, Unpaid Principal Balance	[1]	$ 21		$ 21		$ 36
Impaired Financing Receivable Chargeoffs And Payments Applied	[2]	3		3		5
Impaired Financing Receivable, Recorded Investment	[3]	18		18		31
Impaired Financing Receivable, with No Related Allowance, Recorded Investment	[3]	5		5		13
Impaired Financing Receivable, with Related Allowance, Recorded Investment	[3]	13		13		18
Impaired Financing Receivable, Related Allowance		$ 6		$ 6		$ 8
Impaired Financing Receivable, Coverage Percentage	[4]	42.90%		42.90%		36.10%
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]	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%
Non Accrual [Member] | Total Investor Real Estate [Member]
Financing Receivable, Impaired [Line Items]
Impaired Financing Receivable, Unpaid Principal Balance	[1]	$ 22		$ 22		$ 36
Impaired Financing Receivable Chargeoffs And Payments Applied	[2]	3		3		5
Impaired Financing Receivable, Recorded Investment	[3]	19		19		31
Impaired Financing Receivable, with No Related Allowance, Recorded Investment	[3]	5		5		13
Impaired Financing Receivable, with Related Allowance, Recorded Investment	[3]	14		14		18
Impaired Financing Receivable, Related Allowance		$ 6		$ 6		$ 8
Impaired Financing Receivable, Coverage Percentage	[4]	40.90%		40.90%		36.10%
Non Accrual [Member] | Residential First Mortgage [Member]
Financing Receivable, Impaired [Line Items]
Impaired Financing Receivable, Unpaid Principal Balance	[1]	$ 43		$ 43		$ 51
Impaired Financing Receivable Chargeoffs And Payments Applied	[2]	13		13		16
Impaired Financing Receivable, Recorded Investment	[3]	30		30		35
Impaired Financing Receivable, with No Related Allowance, Recorded Investment	[3]	0		0		0
Impaired Financing Receivable, with Related Allowance, Recorded Investment	[3]	30		30		35
Impaired Financing Receivable, Related Allowance		$ 4		$ 4		$ 4
Impaired Financing Receivable, Coverage Percentage	[4]	39.50%		39.50%		39.20%
Non Accrual [Member] | Home Equity [Member]
Financing Receivable, Impaired [Line Items]
Impaired Financing Receivable, Unpaid Principal Balance	[1]	$ 12		$ 12		$ 14
Impaired Financing Receivable Chargeoffs And Payments Applied	[2]	1		1		1
Impaired Financing Receivable, Recorded Investment	[3]	11		11		13
Impaired Financing Receivable, with No Related Allowance, Recorded Investment	[3]	0		0		0
Impaired Financing Receivable, with Related Allowance, Recorded Investment	[3]	11		11		13
Impaired Financing Receivable, Related Allowance		$ 0		$ 0		$ 0
Impaired Financing Receivable, Coverage Percentage	[4]	8.30%		8.30%		7.10%
Non Accrual [Member] | Consumer Portfolio Segment [Member]
Financing Receivable, Impaired [Line Items]
Impaired Financing Receivable, Unpaid Principal Balance	[1]	$ 55		$ 55		$ 65
Impaired Financing Receivable Chargeoffs And Payments Applied	[2]	14		14		17
Impaired Financing Receivable, Recorded Investment	[3]	41		41		48
Impaired Financing Receivable, with No Related Allowance, Recorded Investment	[3]	0		0		0
Impaired Financing Receivable, with Related Allowance, Recorded Investment	[3]	41		41		48
Impaired Financing Receivable, Related Allowance		$ 4		$ 4		$ 4
Impaired Financing Receivable, Coverage Percentage	[4]	32.70%		32.70%		32.30%
Accrual [Member]
Financing Receivable, Impaired [Line Items]
Impaired Financing Receivable, Unpaid Principal Balance	[1]	$ 1,102		$ 1,102		$ 1,126
Impaired Financing Receivable Chargeoffs And Payments Applied	[2]	26		26		28
Impaired Financing Receivable, Recorded Investment	[3]	1,076		1,076		1,098
Impaired Financing Receivable, Related Allowance		$ 103		$ 103		$ 103
Impaired Financing Receivable, Coverage Percentage	[4]	11.70%		11.70%		11.60%
Accrual [Member] | Commercial And Industrial [Member]
Financing Receivable, Impaired [Line Items]
Impaired Financing Receivable, Unpaid Principal Balance	[1]	$ 150		$ 150		$ 68
Impaired Financing Receivable Chargeoffs And Payments Applied	[2]	2		2		1
Impaired Financing Receivable, Recorded Investment	[3]	148		148		67
Impaired Financing Receivable, Related Allowance		$ 26		$ 26		$ 13
Impaired Financing Receivable, Coverage Percentage	[4]	18.70%		18.70%		20.60%
Accrual [Member] | Commercial Real Estate Mortgage - Owner-Occupied [Member]
Financing Receivable, Impaired [Line Items]
Impaired Financing Receivable, Unpaid Principal Balance	[1]	$ 68		$ 68		$ 89
Impaired Financing Receivable Chargeoffs And Payments Applied	[2]	5		5		6
Impaired Financing Receivable, Recorded Investment	[3]	63		63		83
Impaired Financing Receivable, Related Allowance		$ 6		$ 6		$ 8
Impaired Financing Receivable, Coverage Percentage	[4]	16.20%		16.20%		15.70%
Accrual [Member] | Commercial Real Estate Construction - Owner-Occupied [Member]
Financing Receivable, Impaired [Line Items]
Impaired Financing Receivable, Unpaid Principal Balance	[1]					$ 1
Impaired Financing Receivable Chargeoffs And Payments Applied						0
Impaired Financing Receivable, Recorded Investment						1
Impaired Financing Receivable, Related Allowance						$ 0
Impaired Financing Receivable, Coverage Percentage	[4]					0.00%
Accrual [Member] | Commercial Portfolio Segment [Member]
Financing Receivable, Impaired [Line Items]
Impaired Financing Receivable, Unpaid Principal Balance	[1]	$ 218		$ 218		$ 158
Impaired Financing Receivable Chargeoffs And Payments Applied	[2]	7		7		7
Impaired Financing Receivable, Recorded Investment	[3]	211		211		151
Impaired Financing Receivable, Related Allowance		$ 32		$ 32		$ 21
Impaired Financing Receivable, Coverage Percentage	[4]	17.90%		17.90%		17.70%
Accrual [Member] | Commercial Investor Real Estate Mortgage [Member]
Financing Receivable, Impaired [Line Items]
Impaired Financing Receivable, Unpaid Principal Balance	[1]	$ 93		$ 93		$ 141
Impaired Financing Receivable Chargeoffs And Payments Applied	[2]	7		7		8
Impaired Financing Receivable, Recorded Investment	[3]	86		86		133
Impaired Financing Receivable, Related Allowance		$ 9		$ 9		$ 13
Impaired Financing Receivable, Coverage Percentage	[4]	17.20%		17.20%		14.90%
Accrual [Member] | Commercial Investor Real Estate Construction [Member]
Financing Receivable, Impaired [Line Items]
Impaired Financing Receivable, Unpaid Principal Balance	[1]	$ 35		$ 35		$ 27
Impaired Financing Receivable Chargeoffs And Payments Applied	[2]	0		0		0
Impaired Financing Receivable, Recorded Investment	[3]	35		35		27
Impaired Financing Receivable, Related Allowance		$ 4		$ 4		$ 5
Impaired Financing Receivable, Coverage Percentage	[4]	11.40%		11.40%		18.50%
Accrual [Member] | Total Investor Real Estate [Member]
Financing Receivable, Impaired [Line Items]
Impaired Financing Receivable, Unpaid Principal Balance	[1]	$ 128		$ 128		$ 168
Impaired Financing Receivable Chargeoffs And Payments Applied	[2]	7		7		8
Impaired Financing Receivable, Recorded Investment	[3]	121		121		160
Impaired Financing Receivable, Related Allowance		$ 13		$ 13		$ 18
Impaired Financing Receivable, Coverage Percentage	[4]	15.60%		15.60%		15.50%
Accrual [Member] | Residential First Mortgage [Member]
Financing Receivable, Impaired [Line Items]
Impaired Financing Receivable, Unpaid Principal Balance	[1]	$ 441		$ 441		$ 457
Impaired Financing Receivable Chargeoffs And Payments Applied	[2]	12		12		13
Impaired Financing Receivable, Recorded Investment	[3]	429		429		444
Impaired Financing Receivable, Related Allowance		$ 52		$ 52		$ 57
Impaired Financing Receivable, Coverage Percentage	[4]	14.50%		14.50%		15.30%
Accrual [Member] | Home Equity [Member]
Financing Receivable, Impaired [Line Items]
Impaired Financing Receivable, Unpaid Principal Balance	[1]	$ 302		$ 302		$ 328
Impaired Financing Receivable Chargeoffs And Payments Applied	[2]	0		0		0
Impaired Financing Receivable, Recorded Investment	[3]	302		302		328
Impaired Financing Receivable, Related Allowance		$ 6		$ 6		$ 7
Impaired Financing Receivable, Coverage Percentage	[4]	2.00%		2.00%		2.10%
Accrual [Member] | Indirect-vehicles [Member]
Financing Receivable, Impaired [Line Items]
Impaired Financing Receivable, Unpaid Principal Balance	[1]					$ 1
Impaired Financing Receivable Chargeoffs And Payments Applied	[2]					0
Impaired Financing Receivable, Recorded Investment	[3]					1
Impaired Financing Receivable, Related Allowance						$ 0
Impaired Financing Receivable, Coverage Percentage	[4]					0.00%
Accrual [Member] | Consumer Credit Card Financing Receivable [Member]
Financing Receivable, Impaired [Line Items]
Impaired Financing Receivable, Unpaid Principal Balance	[1]	$ 2		$ 2		$ 2
Impaired Financing Receivable Chargeoffs And Payments Applied	[2]	0		0		0
Impaired Financing Receivable, Recorded Investment	[3]	2		2		2
Impaired Financing Receivable, Related Allowance		$ 0		$ 0		$ 0
Impaired Financing Receivable, Coverage Percentage	[4]	0.00%		0.00%		0.00%
Accrual [Member] | Other consumer
Financing Receivable, Impaired [Line Items]
Impaired Financing Receivable, Unpaid Principal Balance	[1]	$ 11		$ 11		$ 12
Impaired Financing Receivable Chargeoffs And Payments Applied	[2]	0		0		0
Impaired Financing Receivable, Recorded Investment	[3]	11		11		12
Impaired Financing Receivable, Related Allowance		$ 0		$ 0		$ 0
Impaired Financing Receivable, Coverage Percentage	[4]	0.00%		0.00%		0.00%
Accrual [Member] | Consumer Portfolio Segment [Member]
Financing Receivable, Impaired [Line Items]
Impaired Financing Receivable, Unpaid Principal Balance	[1]	$ 756		$ 756		$ 800
Impaired Financing Receivable Chargeoffs And Payments Applied	[2]	12		12		13
Impaired Financing Receivable, Recorded Investment	[3]	744		744		787
Impaired Financing Receivable, Related Allowance		$ 58		$ 58		$ 64
Impaired Financing Receivable, Coverage Percentage	[4]	9.30%		9.30%		9.60%
[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.

Loans and the Allowance for C49

Loans and the Allowance for Credit Losses (Loans By Class Modified In TDR) (Details) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2016USD ($)obligor	Sep. 30, 2015USD ($)obligor	Sep. 30, 2016USD ($)obligor	Sep. 30, 2015USD ($)obligor
Financing Receivable, Modifications [Line Items]
Number of Obligors | obligor	260	454	981	1,543
Financing Receivable, Modifications, Post-Modification Recorded Investment	$ 208	$ 178	$ 535	$ 458
Increase in Allowance at Modification	$ 5	$ 8	$ 17	$ 20
Commercial And Industrial [Member]
Financing Receivable, Modifications [Line Items]
Number of Obligors | obligor	47	47	142	150
Financing Receivable, Modifications, Post-Modification Recorded Investment	$ 117	$ 43	$ 298	$ 145
Increase in Allowance at Modification	$ 2	$ 1	$ 8	$ 3
Commercial Real Estate Mortgage - Owner-Occupied [Member]
Financing Receivable, Modifications [Line Items]
Number of Obligors | obligor	22	44	98	147
Financing Receivable, Modifications, Post-Modification Recorded Investment	$ 26	$ 26	$ 60	$ 88
Increase in Allowance at Modification	$ 1	$ 1	$ 2	$ 3
Commercial investor real estate mortgage [Member]
Financing Receivable, Modifications [Line Items]
Number of Obligors | obligor	19	32	68	92
Financing Receivable, Modifications, Post-Modification Recorded Investment	$ 27	$ 68	$ 87	$ 107
Increase in Allowance at Modification	$ 0	$ 2	$ 1	$ 3
Commercial Investor Real Estate Construction [Member]
Financing Receivable, Modifications [Line Items]
Number of Obligors | obligor	3	1	8	14
Financing Receivable, Modifications, Post-Modification Recorded Investment	$ 25	$ 1	$ 36	$ 8
Increase in Allowance at Modification	$ 1	$ 0	$ 1	$ 0
Residential First Mortgage [Member]
Financing Receivable, Modifications [Line Items]
Number of Obligors | obligor	51	92	189	321
Financing Receivable, Modifications, Post-Modification Recorded Investment	$ 9	$ 31	$ 38	$ 83
Increase in Allowance at Modification	$ 1	$ 4	$ 5	$ 11
Home Equity [Member]
Financing Receivable, Modifications [Line Items]
Number of Obligors | obligor	57	139	263	451
Financing Receivable, Modifications, Post-Modification Recorded Investment	$ 2	$ 8	$ 13	$ 23
Increase in Allowance at Modification	$ 0	$ 0	$ 0	$ 0
Consumer Credit Card Financing Receivable [Member]
Financing Receivable, Modifications [Line Items]
Number of Obligors | obligor	14	30	65	103
Financing Receivable, Modifications, Post-Modification Recorded Investment	$ 1	$ 0	$ 1	$ 1
Increase in Allowance at Modification	$ 0	$ 0	$ 0	$ 0
Indirect-vehicles and other consumer [Member]
Financing Receivable, Modifications [Line Items]
Number of Obligors | obligor	47	69	148	265
Financing Receivable, Modifications, Post-Modification Recorded Investment	$ 1	$ 1	$ 2	$ 3
Increase in Allowance at Modification	$ 0	$ 0	$ 0	$ 0
Commercial Portfolio Segment [Member]
Financing Receivable, Modifications [Line Items]
Number of Obligors | obligor	69	91	240	297
Financing Receivable, Modifications, Post-Modification Recorded Investment	$ 143	$ 69	$ 358	$ 233
Increase in Allowance at Modification	$ 3	$ 2	$ 10	$ 6
Total Investor Real Estate [Member]
Financing Receivable, Modifications [Line Items]
Number of Obligors | obligor	22	33	76	106
Financing Receivable, Modifications, Post-Modification Recorded Investment	$ 52	$ 69	$ 123	$ 115
Increase in Allowance at Modification	$ 1	$ 2	$ 2	$ 3
Consumer Portfolio Segment [Member]
Financing Receivable, Modifications [Line Items]
Number of Obligors | obligor	169	330	665	1,140
Financing Receivable, Modifications, Post-Modification Recorded Investment	$ 13	$ 40	$ 54	$ 110
Increase in Allowance at Modification	$ 1	$ 4	$ 5	$ 11

Loans and the Allowance for C50

Loans and the Allowance for Credit Losses (Loans Modified In Past Twelve Months Which Subsequently Defaulted) (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2016	Sep. 30, 2015	Sep. 30, 2016	Sep. 30, 2015
Financing Receivable, Modifications [Line Items]
Defaulted during period, where modified in a TDR twelve months prior to default	$ 26	$ 15	$ 52	$ 32
Commercial And Industrial [Member]
Financing Receivable, Modifications [Line Items]
Defaulted during period, where modified in a TDR twelve months prior to default	16	4	28	8
Commercial Real Estate Mortgage - Owner-Occupied [Member]
Financing Receivable, Modifications [Line Items]
Defaulted during period, where modified in a TDR twelve months prior to default	1	3	2	6
Commercial investor real estate mortgage [Member]
Financing Receivable, Modifications [Line Items]
Defaulted during period, where modified in a TDR twelve months prior to default	1	0	2	1
Commercial Investor Real Estate Construction [Member]
Financing Receivable, Modifications [Line Items]
Defaulted during period, where modified in a TDR twelve months prior to default	1	0	1	0
Residential First Mortgage [Member]
Financing Receivable, Modifications [Line Items]
Defaulted during period, where modified in a TDR twelve months prior to default	7	7	18	15
Home Equity [Member]
Financing Receivable, Modifications [Line Items]
Defaulted during period, where modified in a TDR twelve months prior to default	0	1	1	2
Commercial Portfolio Segment [Member]
Financing Receivable, Modifications [Line Items]
Defaulted during period, where modified in a TDR twelve months prior to default	17	7	30	14
Total Investor Real Estate [Member]
Financing Receivable, Modifications [Line Items]
Defaulted during period, where modified in a TDR twelve months prior to default	2	0	3	1
Consumer Portfolio Segment [Member]
Financing Receivable, Modifications [Line Items]
Defaulted during period, where modified in a TDR twelve months prior to default	$ 7	$ 8	$ 19	$ 17

Loans and the Allowance for C51

Loans and the Allowance for Credit Losses (Narrative) (Details) - USD ($)	3 Months Ended		9 Months Ended
	Sep. 30, 2016	Sep. 30, 2015	Sep. 30, 2016	Sep. 30, 2015
Accounts, Notes, Loans and Financing Receivable [Line Items]
Amount of loans first reported as new TDRs			$ 347,000,000	$ 217,000,000
Consumer Loans Default at 90 Days Past Due and Still Accruing	90 days
Re-Defaulted Commercial And Investor Real Estate Loans Modified In Tdr During Period And On Non Accrual Status	$ 66,000,000
Re-Defaulted Commercial And Investor Real Estate Loans Modified In Tdr During Period On Non Accrual Status and 90 days or more past due	0.012
Total Restructured Binding Unfunded Commitment	51,000,000		51,000,000
Federal Home Loan Bank [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Pledged loans	14,700,000,000		14,700,000,000
Federal Reserve Bank [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Pledged loans	19,700,000,000		19,700,000,000
Indirect-vehicles and Indirect-other consumer [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Indirect-vehicles and Indirect-other consumer loans purchased	$ 200,000,000	$ 310,000,000	779,000,000	$ 857,000,000
Residential First Mortgage [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Troubled Debt Restructuring Modification Recorded Investment In Excess Of One Hundred Eighty Days Past Due And Collateral Dependent			$ 38,000,000
Residential Mortgage Period	180 days
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
Home Equity First Lien [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Troubled Debt Restructuring Modification Recorded Investment In Excess Of One Hundred Eighty Days Past Due And Collateral Dependent			$ 5,000,000
Residential Mortgage Period	180 days
Home Equity Second Lien [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Residential Mortgage Period	120 days
TDRs in excess of 120 days past due and collateral dependent			$ 4,000,000

Servicing of Financial Assets52

Servicing of Financial Assets (Analysis Of Residential Mortgage Servicing Rights Under The Fair Value Measurement Method) (Details) - USD ($) $ in Millions		3 Months Ended		9 Months Ended
		Sep. 30, 2016	Sep. 30, 2015	Sep. 30, 2016	Sep. 30, 2015
Servicing Asset at Fair Value, Amount [Roll Forward]
Carrying value, beginning of period		$ 216	$ 268	$ 252	$ 257
Additions		34	9	73	28
Increase (decrease) in fair value, due to change in valuation inputs or assumptions	[1]	(2)	(25)	(60)	(14)
Increase (decrease) in fair value, economic amortization associated with borrower repayments	[1]	(10)	(11)	(27)	(30)
Carrying value, end of period		$ 238	$ 241	$ 238	$ 241
[1]	"Economic amortization associated with borrower repayments" includes both total loan payoffs as well as partial paydowns.

Servicing of Financial Assets53

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	9 Months Ended
	Sep. 30, 2016USD ($)basis_point	Sep. 30, 2015USD ($)basis_point
Servicing Assets at Fair Value [Line Items]
Unpaid principal balance	$ 29,657	$ 26,220
Weighted-average prepayment speed (CPR; percentage)	12.30%	12.00%
Estimated impact on fair value of a 10% increase in prepayment speed	$ (13)	$ (13)
Estimated impact on fair value of a 20% increase in prepayment speed	$ (24)	$ (25)
Option-adjusted spread (basis points) | basis_point	1,060	999
Estimated impact on fair value of a 10% increase in other assumptions	$ (9)	$ (9)
Estimated impact on fair value of a 20% increase in other assumptions	$ (18)	$ (18)
Weighted-average coupon interest rate	4.20%	4.40%
Weighted-average remaining maturity (months)	280 months	279 months
Weighted Average Servicing Fee Basis Points | basis_point	27.6	27.9

Servicing of Financial Assets54

Servicing of Financial Assets (Schedule Of Fees Resulting From The Servicing Of Mortgage Loans) (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2016	Sep. 30, 2015	Sep. 30, 2016	Sep. 30, 2015
Transfers and Servicing of Financial Assets [Abstract]
Servicing related fees and other ancillary income	$ 21	$ 21	$ 63	$ 62

Servicing of Financial Assets55

Servicing of Financial Assets (Narrative) (Details) - USD ($) $ in Millions	Sep. 01, 2016	Feb. 29, 2016	Dec. 31, 2016	Sep. 30, 2016	Sep. 30, 2016	Sep. 30, 2015	Dec. 31, 2015	Jul. 18, 2014
Servicing Assets at Fair Value [Line Items]
Unpaid Principal Balance of Outstanding Underlying MSRs Purchased	$ 2,800	$ 2,600
Payments to Acquire Mortgage Servicing Rights (MSR)	$ 22	$ 24		$ 11	$ 35	$ 4
Unpaid principal balance				29,657	29,657	$ 26,220
Licensing Agreements [Member]
Servicing Assets at Fair Value [Line Items]
Other Intangible Assets, Net								$ 15
DUS Portfolio [Member]
Servicing Assets at Fair Value [Line Items]
Unpaid principal balance				1,700	1,700		$ 1,200	1,000
Commercial Real Estate [Member]
Servicing Assets at Fair Value [Line Items]
Servicing Asset at Amortized Cost				28	28		16	12
Loss Share Guarantee				$ 3	$ 3		$ 3	$ 4
Subsequent Event [Member]
Servicing Assets at Fair Value [Line Items]
Payments to Acquire Mortgage Servicing Rights (MSR)			$ 11

Goodwill (Schedule of Goodwill)

Goodwill (Schedule of Goodwill) (Details) - USD ($) $ in Millions	Sep. 30, 2016	Dec. 31, 2015
Goodwill [Line Items]
Goodwill	$ 4,882	$ 4,878
Corporate Bank [Member]
Goodwill [Line Items]
Goodwill	2,452	2,305
Consumer Bank [Member]
Goodwill [Line Items]
Goodwill	1,978	2,095
Wealth Management [Member]
Goodwill [Line Items]
Goodwill	$ 452	$ 478

Preferred Stock Issuances (Deta

Preferred Stock Issuances (Details) - USD ($) $ in Millions		3 Months Ended	120 Months Ended
		Sep. 30, 2016	Sep. 15, 2024	Dec. 31, 2015
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%.

Schedule of Accumulated Other C

Schedule of Accumulated Other Comprehensive Income (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2016	Sep. 30, 2015	Sep. 30, 2016	Sep. 30, 2015
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Accumulated Other Comprehensive Income (Loss), Net of Tax, Period Start	$ 148	$ (287)	$ (380)	$ (238)
Other comprehensive income (loss), net of tax	(43)	148	485	99
Accumulated Other Comprehensive Income (Loss), Net of Tax, Period End	105	(139)	105	(139)
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	(40)	(51)	(47)	(55)
Other comprehensive income (loss), net of tax	5	2	12	6
Accumulated Other Comprehensive Income (Loss), Net of Tax, Period End	(35)	(49)	(35)	(49)
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	297	96	(10)	175
Other comprehensive income (loss), net of tax	(13)	42	294	(37)
Accumulated Other Comprehensive Income (Loss), Net of Tax, Period End	284	138	284	138
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	278	45	75	33
Other comprehensive income (loss), net of tax	(40)	96	163	108
Accumulated Other Comprehensive Income (Loss), Net of Tax, Period End	238	141	238	141
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	(387)	(377)	(398)	(391)
Other comprehensive income (loss), net of tax	5	8	16	22
Accumulated Other Comprehensive Income (Loss), Net of Tax, Period End	$ (382)	$ (369)	$ (382)	$ (369)

Reclassification from Accumulat

Reclassification from Accumulated Other Comprehensive Income (Details) - USD ($) $ in Millions		3 Months Ended		9 Months Ended
		Sep. 30, 2016	Sep. 30, 2015	Sep. 30, 2016	Sep. 30, 2015
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Interest Income (Expense), Net		$ 835	$ 836	$ 2,545	$ 2,471
Securities gains, net		0	7	1	18
Salaries and employee benefits		(486)	(470)	(1,441)	(1,405)
Income tax (expense) benefit		(152)	(116)	(380)	(335)
Net income		320	258	868	777
Reclassification out of Accumulated Other Comprehensive Income [Member]
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Net income	[1]	11	19	40	49
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]	(9)	(3)	(20)	(10)
Income tax (expense) benefit	[1]	4	1	8	4
Net income	[1]	(5)	(2)	(12)	(6)
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, net	[1]	0	7	1	18
Income tax (expense) benefit	[1]	0	(2)	0	(6)
Net income	[1]	0	5	1	12
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]	35	41	109	108
Income tax (expense) benefit	[1]	(13)	(16)	(41)	(41)
Net income	[1]	22	25	68	67
Accumulated Defined Benefit Plans Adjustment [Member] | Reclassification out of Accumulated Other Comprehensive Income [Member]
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Salaries and employee benefits	[1]	(9)	(13)	(26)	(37)
Income tax (expense) benefit	[1]	3	4	9	13
Net income	[1]	(6)	(9)	(17)	(24)
Accumulated Defined Benefit Plans Adjustment, Net Prior Service Cost (Credit) [Member] | Reclassification out of Accumulated Other Comprehensive Income [Member]
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Salaries and employee benefits	[1],[2]	0	(1)	0	(1)
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]
Salaries and employee benefits	[1],[2]	$ (9)	$ (12)	$ (26)	$ (36)
[1]	(1) Amounts in parentheses indicate reductions to net income.
[2]	(2) These accumulated other comprehensive income (loss) components are included in the computation of net periodic pension cost and are included in salaries and employee benefits on the consolidated statements of income (see Note 10 for additional details).

Stockholders' Equity And Accu60

Stockholders' Equity And Accumulated Other Comprehensive Income (Loss) (Narrative) (Details) - USD ($) $ / shares in Units, shares in Millions		Nov. 03, 2016	Sep. 30, 2016	Jun. 30, 2016	Mar. 31, 2016	Sep. 30, 2015	Jun. 30, 2015	Mar. 31, 2015	Sep. 30, 2016	Sep. 30, 2015	Sep. 15, 2024	Dec. 15, 2017	Oct. 12, 2016	Jul. 14, 2016
Stockholders' Equity And Comprehensive Income (Loss) [Line Items]
Dividends, Preferred Stock									$ 48,000,000	$ 48,000,000
Cash dividend declared (in dollars per share)			$ 0.065	$ 0.065	$ 0.06	$ 0.06	$ 0.06	$ 0.05	$ 0.19	$ 0.17
Stock Repurchase Program, Authorized Amount														$ 640,000,000
Shares repurchased (in shares)			23.1
Payments for Repurchase of Common Stock			$ 215,000,000						$ 569,000,000	$ 544,000,000
Subsequent Event [Member]
Stockholders' Equity And Comprehensive Income (Loss) [Line Items]
Stock Repurchase Program, Authorized Amount													$ 760,000,000
Shares repurchased (in shares)		10.9
Payments for Repurchase of Common Stock		$ 116,700,000
Stock Repurchase Program, Additional Authorized Amount													$ 120,000,000
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	$ 8,000,000	$ 8,000,000	$ 8,000,000	$ 8,000,000
Series A Preferred Stock [Member] | Subsequent Event [Member]
Stockholders' Equity And Comprehensive Income (Loss) [Line Items]
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	$ 8,000,000	$ 8,000,000	$ 8,000,000	$ 8,000,000
Series B Preferred Stock [Member] | Subsequent Event [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						$ 1,000
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						$ 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%.

Earnings (Loss) Per Common Sh61

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		9 Months Ended
		Sep. 30, 2016	Sep. 30, 2015	Sep. 30, 2016	Sep. 30, 2015
Numerator:
Income from continuing operations		$ 319	$ 262	$ 864	$ 787
Preferred stock dividends		(16)	(16)	(48)	(48)
Income from continuing operations available to common shareholders		303	246	816	739
Income (loss) from discontinued operations, net of tax		1	(4)	4	(10)
Net income available to common shareholders		$ 304	$ 242	$ 820	$ 729
Denominator:
Weighted-average common shares outstanding—basic (in shares)		1,246	1,319	1,266	1,333
Potential common shares (in shares)		6	7	4	10
Weighted-average common shares outstanding—diluted (in shares)		1,252	1,326	1,270	1,343
Earnings per common share from continuing operations:
Basic (in dollars per share)	[1]	$ 0.24	$ 0.19	$ 0.64	$ 0.55
Diluted (in dollars per share)	[1]	0.24	0.19	0.64	0.55
Earning (Loss) Per Common Share From Discontinued Operations:
Basic (in dollars per share)	[1]	0	0	0	(0.01)
Diluted (in dollars per share)	[1]	0	0	0	(0.01)
Earnings per common share:
Basic (in dollars per share)	[1]	0.24	0.18	0.65	0.55
Diluted (in dollars per share)	[1]	$ 0.24	$ 0.18	$ 0.65	$ 0.54
Antidilutive Securities Excluded from Computation of Earnings Per Share (in shares)		27	29	29	29
[1]	Certain per share amounts may not appear to reconcile due to rounding.

Share-Based Payments (Summary O

Share-Based Payments (Summary Of Activity Related To Stock Options) (Details) - $ / shares	9 Months Ended
	Sep. 30, 2016	Sep. 30, 2015
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding [Roll Forward]
Number of Options, Outstanding at beginning of period	19,350,157	25,316,676
Number of Options, Exercised	(568,882)	(535,107)
Number of Options, Forfeited or Expired	(3,840,704)	(5,410,769)
Number of Options, Outstanding at end of period	14,940,571	19,370,800
Number of Options, Exercisable at end of period	14,940,571	19,370,800
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Weighted Average Exercise Price [Abstract]
Weighted-Average Exercise Price, Outstanding at beginning of period (in dollars per share)	$ 21.06	$ 23.07
Weighted-Average Exercise Price, Exercised (in dollars per share)	5.86	6.92
Weighted-Average Exercise Price, Forfeited or Expired (in dollars per share)	34.68	31.82
Weighted-Average Exercise Price, Outstanding at end of period (in dollars per share)	18.14	21.07
Weighted-Average Exercise Price, Exercisable at end of period (in dollars per share)	$ 18.14	$ 21.07

Share-Based Payments (Summary63

Share-Based Payments (Summary Of Restricted Stock Award And Unit Activity) (Details) - $ / shares	9 Months Ended
	Sep. 30, 2016	Sep. 30, 2015
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Number of Shares [Roll Forward]
Number of Shares, Non-vested at beginning of period	16,374,242	18,427,409
Number of Shares, Granted	6,840,385	6,622,682
Number of Shares, Vested	(5,735,271)	(8,106,010)
Number of Shares, Forfeited	(686,347)	(506,271)
Number of Shares, Non-vested at end of period	16,793,009	16,437,810
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Weighted Average Grant Date Fair Value [Abstract]
Weighted-Average Grant Date Fair Value, Non-vested at beginning of period (in dollars per share)	$ 9.51	$ 8.07
Weighted-Average Grant Date Fair Value, Granted (in dollars per share)	7.92	9.90
Weighted-Average Grant Date Fair Value, Vested (in dollars per share)	8.25	6.07
Weighted-Average Grant Date Fair Value, Forfeited (in dollars per share)	9.18	8.54
Weighted-Average Grant Date Fair Value, Non-vested at end of period (in dollars per share)	$ 9.31	$ 9.51

Share-Based Payments (Narrative

Share-Based Payments (Narrative) (Details) - shares shares in Millions	9 Months Ended
	Sep. 30, 2016	Apr. 23, 2015
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting period of stock options and restricted stock (in years)	3 years
Contractual lives of options granted under long-term incentive compensation plans	10 years
Number of share equivalents authorized for issuance under the long term compensation plan		60
Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Available for Grant	48

Pension and Other Postretirem65

Pension and Other Postretirement Benefits (Schedule of Net Periodic Pension Cost) (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2016	Sep. 30, 2015	Sep. 30, 2016	Sep. 30, 2015
Defined Benefit Plan Disclosure [Line Items]
Service Cost	$ 10	$ 11	$ 29	$ 34
Interest Cost	20	23	59	68
Expected Return on Plan Assets	(36)	(38)	(108)	(112)
Amortization of Actuarial Loss	9	12	26	36
Amortization of Prior Service Cost	0	1	0	1
Net Periodic Pension Cost (Credit)	3	9	6	27
Qualified [Member]
Defined Benefit Plan Disclosure [Line Items]
Service Cost	9	10	26	30
Interest Cost	19	21	55	63
Expected Return on Plan Assets	(36)	(38)	(108)	(112)
Amortization of Actuarial Loss	8	11	24	33
Amortization of Prior Service Cost	0	0	0	0
Net Periodic Pension Cost (Credit)	0	4	(3)	14
Non-qualified Plans [Member]
Defined Benefit Plan Disclosure [Line Items]
Service Cost	1	1	3	4
Interest Cost	1	2	4	5
Expected Return on Plan Assets	0	0	0	0
Amortization of Actuarial Loss	1	1	2	3
Amortization of Prior Service Cost	0	1	0	1
Net Periodic Pension Cost (Credit)	$ 3	$ 5	$ 9	$ 13

Derivative Financial Instrume66

Derivative Financial Instruments And Hedging Activities (Narrative) (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2016	Sep. 30, 2015	Sep. 30, 2016	Sep. 30, 2015	Dec. 31, 2015
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Terminated Cash Flow Hedge Unrealized Gain (Loss) To Be Reclassified From OCI, After Tax Amount			$ 179	$ 24
Cash Flow Hedge Pre Tax Income (Loss)	$ 22	$ 11	46	$ 33
Cash flow hedge gain expected to be reclassified from other comprehensive income into earnings within the next 12 months			123
Pre-tax net income related to amortization of discontinued cash flow hedges			$ 76
Maximum Length of Time Hedged in Cash Flow Hedge			9 years
Derivative, Notional Amount	82,510		$ 82,510		$ 77,958
Credit risk, defined as all positive exposures not collateralized	463		463		406
Maximum potential future exposure on swap participations	90		90
Aggregate fair value of all derivative instruments with credit risk	193		193		180
Posted collateral related to derivative instruments with credit risk	191		191		180
Not Designated as Hedging Instrument [Member]
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Derivative, Notional Amount	71,200		71,200		65,708
Interest Rate Lock Commitments [Member] | Not Designated as Hedging Instrument [Member]
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Derivative, Notional Amount	446		446		322
Forward Sale Commitments [Member] | Not Designated as Hedging Instrument [Member]
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Derivative, Notional Amount	802		802		666
Forward Rate Commitments and Futures Contracts [Member] | Not Designated as Hedging Instrument [Member]
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Derivative, Notional Amount	$ 5,800		$ 5,800		$ 3,600

Derivative Financial Instrume67

Derivative Financial Instruments and Hedging Activities (Schedule of Derivative Instruments Notional and Fair Value) (Details) - USD ($) $ in Millions		Sep. 30, 2016	Dec. 31, 2015
Derivatives, Fair Value [Line Items]
Notional Amount		$ 82,510	$ 77,958
Estimated Fair Value, Gain	[1]	855	826
Estimated Fair Value, Loss	[1]	792	758
Designated as Hedging Instrument [Member]
Derivatives, Fair Value [Line Items]
Notional Amount		11,310	12,250
Estimated Fair Value, Gain	[1]	103	114
Estimated Fair Value, Loss	[1]	47	36
Not Designated as Hedging Instrument [Member]
Derivatives, Fair Value [Line Items]
Notional Amount		71,200	65,708
Estimated Fair Value, Gain	[1]	752	712
Estimated Fair Value, Loss	[1]	745	722
Interest Rate Swaps [Member] | Not Designated as Hedging Instrument [Member]
Derivatives, Fair Value [Line Items]
Notional Amount		41,529	40,612
Interest Rate Swaps [Member] | Not Designated as Hedging Instrument [Member] | Other Assets [Member]
Derivatives, Fair Value [Line Items]
Estimated Fair Value, Gain	[1]	641	496
Interest Rate Swaps [Member] | Not Designated as Hedging Instrument [Member] | Other Liabilities [Member]
Derivatives, Fair Value [Line Items]
Estimated Fair Value, Loss	[1]	655	528
Interest Rate Options [Member] | Not Designated as Hedging Instrument [Member]
Derivatives, Fair Value [Line Items]
Notional Amount		3,723	3,441
Interest Rate Options [Member] | Not Designated as Hedging Instrument [Member] | Other Assets [Member]
Derivatives, Fair Value [Line Items]
Estimated Fair Value, Gain	[1]	18	11
Interest Rate Options [Member] | Not Designated as Hedging Instrument [Member] | Other Liabilities [Member]
Derivatives, Fair Value [Line Items]
Estimated Fair Value, Loss	[1]	1	1
Interest Rate Futures And Forward Commitments [Member] | Not Designated as Hedging Instrument [Member]
Derivatives, Fair Value [Line Items]
Notional Amount		20,693	17,288
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]	3	5
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]	8	6
Other Contract [Member] | Not Designated as Hedging Instrument [Member]
Derivatives, Fair Value [Line Items]
Notional Amount		5,255	4,367
Other Contract [Member] | Not Designated as Hedging Instrument [Member] | Other Assets [Member]
Derivatives, Fair Value [Line Items]
Estimated Fair Value, Gain	[1]	90	200
Other Contract [Member] | Not Designated as Hedging Instrument [Member] | Other Liabilities [Member]
Derivatives, Fair Value [Line Items]
Estimated Fair Value, Loss	[1]	81	187
Fair Value Hedging [Member] | Interest Rate Swaps [Member] | Designated as Hedging Instrument [Member]
Derivatives, Fair Value [Line Items]
Notional Amount		2,310	2,450
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]	6	5
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]	45	27
Cash Flow Hedging [Member] | Interest Rate Swaps [Member] | Designated as Hedging Instrument [Member]
Derivatives, Fair Value [Line Items]
Notional Amount		9,000	9,800
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]	97	109
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]	$ 2	$ 9
[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.

Derivative Financial Instrume68

Derivative Financial Instruments And Hedging Activities (Schedule Of The Effect Of Derivative Instruments On The Statements Of Operations) (Details) - Designated as Hedging Instrument [Member] - USD ($) $ in Millions		3 Months Ended		9 Months Ended
		Sep. 30, 2016	Sep. 30, 2015	Sep. 30, 2016	Sep. 30, 2015
Fair Value Hedging [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Gain or (Loss) Recognized in Income on Derivatives		$ (21)	$ (11)	$ (29)	$ (2)
Gain or (Loss) Recognized in Income on Related Hedged Item		19	9	27	5
Fair Value Hedging [Member] | Interest Rate Swaps [Member] | Debt/CDs [Member] | Interest Expense [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Gain or (Loss) Recognized in Income on Derivatives		2	5	10	13
Gain or (Loss) Recognized in Income on Related Hedged Item		0	(1)	(2)	5
Fair Value Hedging [Member] | Interest Rate Swaps [Member] | Debt/CDs [Member] | Other Non-Interest Expense [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Gain or (Loss) Recognized in Income on Derivatives		(23)	10	4	14
Gain or (Loss) Recognized in Income on Related Hedged Item		24	(11)	(3)	(15)
Fair Value Hedging [Member] | Interest Rate Swaps [Member] | Available-for-sale Securities [Member] | Other Non-Interest Expense [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Gain or (Loss) Recognized in Income on Derivatives		2	(23)	(36)	(18)
Gain or (Loss) Recognized in Income on Related Hedged Item		(5)	21	32	15
Fair Value Hedging [Member] | Interest Rate Swaps [Member] | Available-for-sale Securities [Member] | Interest Income [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Gain or (Loss) Recognized in Income on Derivatives		(2)	(3)	(7)	(11)
Gain or (Loss) Recognized in Income on Related Hedged Item		0	0	0	0
Cash Flow Hedging [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Gain or (Loss) Recognized in AOCI	[1],[2]	(40)	96	163	108
Gain or (Loss) Reclassified from AOCI into Income	[2],[3]	35	41	109	108
Cash Flow Hedging [Member] | Interest Rate Swaps [Member] | Interest Income On Loans [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Gain or (Loss) Recognized in AOCI	[1],[2]	(40)	96	163	108
Gain or (Loss) Reclassified from AOCI into Income	[2],[3]	$ 35	$ 41	$ 109	$ 108
[1]	After-tax
[2]	All cash flow hedges were highly effective for all periods presented, and the change in fair value attributed to hedge ineffectiveness was not material.
[3]	Pre-tax

Derivative Financial Instrume69

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		9 Months Ended
		Sep. 30, 2016	Sep. 30, 2015	Sep. 30, 2016	Sep. 30, 2015
Derivative [Line Items]
Gain or (Loss) of Derivatives Not Designated as Hedging Instruments		$ 0	$ 31	$ 79	$ 43
Capital Markets Fee Income [Member]
Derivative [Line Items]
Gain or (Loss) of Derivatives Not Designated as Hedging Instruments	[1]	(4)	17	18	21
Capital Markets Fee Income [Member] | Interest Rate Swaps [Member]
Derivative [Line Items]
Gain or (Loss) of Derivatives Not Designated as Hedging Instruments	[1]	4	3	7	11
Capital Markets Fee Income [Member] | Interest Rate Options [Member]
Derivative [Line Items]
Gain or (Loss) of Derivatives Not Designated as Hedging Instruments	[1]	2	5	16	9
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	1	4	0
Capital Markets Fee Income [Member] | Other Contract [Member]
Derivative [Line Items]
Gain or (Loss) of Derivatives Not Designated as Hedging Instruments	[1]	(11)	8	(9)	1
Mortgage Income [Member]
Derivative [Line Items]
Gain or (Loss) of Derivatives Not Designated as Hedging Instruments		4	14	61	22
Mortgage Income [Member] | Interest Rate Swaps [Member]
Derivative [Line Items]
Gain or (Loss) of Derivatives Not Designated as Hedging Instruments		(3)	22	45	19
Mortgage Income [Member] | Interest Rate Options [Member]
Derivative [Line Items]
Gain or (Loss) of Derivatives Not Designated as Hedging Instruments		(1)	0	7	4
Mortgage Income [Member] | Interest Rate Futures And Forward Commitments [Member]
Derivative [Line Items]
Gain or (Loss) of Derivatives Not Designated as Hedging Instruments		$ 8	$ (8)	$ 9	$ (1)
[1]	Capital markets fee income and other is included in Other income on the consolidated statements of income.

Derivative Financial Instrume70

Derivative Financial Instruments and Hedging Activities (Offsetting Derivatives) (Details) - USD ($) $ in Millions		Sep. 30, 2016	Dec. 31, 2015
Offsetting Derivative Assets [Abstract]
Offsetting Derivative Assets, Gross amounts recognized	[1]	$ 855	$ 826
Offsetting Derivative Assets, Gross amounts offset in the consolidated balance sheets	[2]	388	409
Offsetting Derivative Assets, Net amounts presented in the consolidated balance sheets		467	417
Offsetting Derivative Assets, Gross amounts not offset in the consolidated balance sheets
Financial instruments		4	5
Cash collateral received/posted		0	6
Net amounts		463	406
Offsetting Derivative Liabilities [Abstract]
Offsetting Derivative Liabilities, Gross Amount Recognized	[1]	792	758
Offsetting Derivative Liabilities, Gross amounts offset in the consolidated balance sheets	[2]	571	558
Offsetting Derivative Liabilities, Net amounts presented in the consolidated balance sheets		221	200
Offsetting Derivative Liabilities, Gross amounts not offset in the consolidated balance sheets
Financial instruments		51	50
Cash collateral received/posted		129	52
Net amounts		41	98
Cash collateral received, offset		271	108
Cash collateral posted		88	256
Subject to offsetting [Member]
Offsetting Derivative Assets [Abstract]
Offsetting Derivative Assets, Gross amounts recognized		712	718
Offsetting Derivative Liabilities [Abstract]
Offsetting Derivative Liabilities, Gross Amount Recognized		616	677
Not subject to offsetting [Member]
Offsetting Derivative Assets [Abstract]
Offsetting Derivative Assets, Gross amounts recognized		143	108
Offsetting Derivative Liabilities [Abstract]
Offsetting Derivative Liabilities, Gross Amount Recognized		$ 176	$ 81
[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.
[2]	At September 30, 2016, gross amounts of derivative assets and liabilities offset in the consolidated balance sheets presented above include cash collateral received of $271 million and cash collateral posted of $88 million. At December 31, 2015, gross amounts of derivative assets and liabilities offset in the consolidated balance sheets presented above include cash collateral received of $108 million and cash collateral posted of $256 million.

Fair Value Measurements (Schedu

Fair Value Measurements (Schedule Of Assets And Liabilities At Fair Value Measured On A Recurring Basis And Non-Recurring Basis) (Details) - USD ($) $ in Millions	Sep. 30, 2016	Jun. 30, 2016	Dec. 31, 2015	Sep. 30, 2015	Jun. 30, 2015	Dec. 31, 2014
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Trading Securities	$ 120		$ 143
Securities available for sale	23,859		22,710
Servicing Asset at Fair Value, Amount	238	$ 216	252	$ 241	$ 268	$ 257
Derivative Asset	467		417
Derivative Liabilities	221		200
Loans held for sale, at fair value	549		353
Recurring Fair Value Measurements [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Trading Securities	120		143
Securities available for sale	23,859		22,710
Mortgages Held-for-sale, Fair Value Disclosure	549		353
Servicing Asset at Fair Value, Amount	238		252
Derivative Asset	855		826
Derivative Liabilities	792		758
Nonrecurring Fair Value Measurements [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Loans held for sale, at fair value	11		36
Fair Value Foreclosed Property And Other Real Estate And Equipment Nonrecurring Basis	50		38
Level 1 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Trading Securities	120		110
Securities available for sale	422		508
Derivative Asset	4		0
Derivative Liabilities	0		0
Loans held for sale, at fair value	0		0
Level 1 [Member] | Recurring Fair Value Measurements [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Trading Securities	120		110
Securities available for sale	422		508
Mortgages Held-for-sale, Fair Value Disclosure	0		0
Servicing Asset at Fair Value, Amount	0		0
Derivative Asset	4		0
Derivative Liabilities	0		0
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, at fair value	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]
Trading Securities	0		0
Securities available for sale	23,429		22,194
Derivative Asset	835		816
Derivative Liabilities	792		758
Loans held for sale, at fair value	459		353
Level 2 [Member] | Recurring Fair Value Measurements [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Trading Securities	0		0
Securities available for sale	23,429		22,194
Mortgages Held-for-sale, Fair Value Disclosure	459		353
Servicing Asset at Fair Value, Amount	0		0
Derivative Asset	835		816
Derivative Liabilities	792		758
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, at fair value	0		0
Fair Value Foreclosed Property And Other Real Estate And Equipment Nonrecurring Basis	38		30
Level 3 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Trading Securities	0		33
Securities available for sale	8		8
Derivative Asset	16		10
Derivative Liabilities	0		0
Loans held for sale, at fair value	90		95
Level 3 [Member] | Recurring Fair Value Measurements [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Trading Securities	0		33
Securities available for sale	8		8
Mortgages Held-for-sale, Fair Value Disclosure	90		0
Servicing Asset at Fair Value, Amount	238		252
Derivative Asset	16		10
Derivative Liabilities	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, at fair value	11		36
Fair Value Foreclosed Property And Other Real Estate And Equipment Nonrecurring Basis	12		8
Interest Rate Swaps [Member] | Recurring Fair Value Measurements [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative Asset	744		610
Derivative Liabilities	702		564
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	744		610
Derivative Liabilities	702		564
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	0		0
Derivative Liabilities	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	18		11
Derivative Liabilities	1		1
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	2		1
Derivative Liabilities	1		1
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	16		10
Derivative Liabilities	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	3		5
Derivative Liabilities	8		6
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	3		5
Derivative Liabilities	8		6
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	0		0
Derivative Liabilities	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	90		200
Derivative Liabilities	81		187
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	4		0
Derivative Liabilities	0		0
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	86		200
Derivative Liabilities	81		187
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	0		0
Derivative Liabilities	0		0
US Treasury Securities [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Securities available for sale	242		228
US Treasury Securities [Member] | Recurring Fair Value Measurements [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Securities available for sale	242		228
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]
Securities available for sale	242		228
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]
Securities available for sale	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]
Securities available for sale	0		0
Federal Agency Securities [Member] | Recurring Fair Value Measurements [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Securities available for sale	38		218
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]
Securities available for sale	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]
Securities available for sale	38		218
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]
Securities available for sale	0		0
Obligations of States and Political Subdivisions [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Securities available for sale			1
Obligations of States and Political Subdivisions [Member] | Recurring Fair Value Measurements [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Securities available for sale	0		1
Obligations of States and Political Subdivisions [Member] | Level 1 [Member] | Recurring Fair Value Measurements [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Securities available for sale	0		0
Obligations of States and Political Subdivisions [Member] | Level 2 [Member] | Recurring Fair Value Measurements [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Securities available for sale	0		1
Obligations of States and Political Subdivisions [Member] | Level 3 [Member] | Recurring Fair Value Measurements [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Securities available for sale	0		0
Residential Agency [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Securities available for sale	17,506		16,062
Residential Agency [Member] | Recurring Fair Value Measurements [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Securities available for sale	17,506		16,062
Residential Agency [Member] | Level 1 [Member] | Recurring Fair Value Measurements [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Securities available for sale	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]
Securities available for sale	17,506		16,062
Residential Agency [Member] | Level 3 [Member] | Recurring Fair Value Measurements [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Securities available for sale	0		0
Residential Non Agency [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Securities available for sale	5		5
Residential Non Agency [Member] | Recurring Fair Value Measurements [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Securities available for sale	5		5
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]
Securities available for sale	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]
Securities available for sale	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]
Securities available for sale	5		5
Commercial Agency [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Securities available for sale	3,413		3,018
Commercial Agency [Member] | Recurring Fair Value Measurements [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Securities available for sale	3,413		3,018
Commercial Agency [Member] | Level 1 [Member] | Recurring Fair Value Measurements [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Securities available for sale	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]
Securities available for sale	3,413		3,018
Commercial Agency [Member] | Level 3 [Member] | Recurring Fair Value Measurements [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Securities available for sale	0		0
Commercial Non Agency [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Securities available for sale	1,141		1,231
Commercial Non Agency [Member] | Recurring Fair Value Measurements [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Securities available for sale	1,141		1,231
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]
Securities available for sale	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]
Securities available for sale	1,141		1,231
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]
Securities available for sale	0		0
Corporate and other debt securities [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Securities available for sale	1,334		1,667
Corporate and other debt securities [Member] | Recurring Fair Value Measurements [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Securities available for sale	1,334		1,667
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]
Securities available for sale	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]
Securities available for sale	1,331		1,664
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]
Securities available for sale	3		3
Equity Securities [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Securities available for sale	180		280
Equity Securities [Member] | Recurring Fair Value Measurements [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Securities available for sale	180		280
Equity Securities [Member] | Level 1 [Member] | Recurring Fair Value Measurements [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Securities available for sale	180		280
Equity Securities [Member] | Level 2 [Member] | Recurring Fair Value Measurements [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Securities available for sale	0		0
Equity Securities [Member] | Level 3 [Member] | Recurring Fair Value Measurements [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Securities available for sale	$ 0		$ 0

Fair Value Measurements (Rollfo

Fair Value Measurements (Rollforward For Assets And Liabilities Measured At Fair Value On A Recurring Basis With Level 3 Significant Unobservable Inputs) (Details) - USD ($) $ in Millions		3 Months Ended				9 Months Ended
		Sep. 30, 2016		Sep. 30, 2015		Sep. 30, 2016		Sep. 30, 2015
Trading Securities [Member]
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Opening balance						$ 33
Gain (Loss) Included in Earnings	[1]					(2)
Gain (Loss) Included in Other Comprehensive Income (Loss)						0
Purchases						0
Sales						(31)
Issuances						0
Settlements						0
Transfers Into Level 3						0
Transfers Out Of Level 3						0
Closing balance		$ 0				0
Residential Non Agency [Member]
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Opening balance		5		$ 6		5		$ 8
Gain (Loss) Included in Earnings		0		0		0		0
Gain (Loss) Included in Other Comprehensive Income (Loss)		0		0		0		0
Purchases		0		0		0		0
Sales		0		0		0		0
Issuances		0		0		0		0
Settlements		0		0		0		(2)
Transfers Into Level 3		0		0		0		0
Transfers Out Of Level 3		0		0		0		0
Closing balance		5		6		5		6
Corporate and other debt securities [Member]
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Opening balance		3		3		3		3
Gain (Loss) Included in Earnings		0		0		0		0
Gain (Loss) Included in Other Comprehensive Income (Loss)		0		0		0		0
Purchases		0		0		0		0
Sales		0		0		0		0
Issuances		0		0		0		0
Settlements		0		0		0		0
Transfers Into Level 3		0		0		0		0
Transfers Out Of Level 3		0		0		0		0
Closing balance		3		3		3		3
Available-for-sale Securities [Member]
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Opening balance		8		9		8		11
Gain (Loss) Included in Earnings		0		0		0		0
Gain (Loss) Included in Other Comprehensive Income (Loss)		0		0		0		0
Purchases		0		0		0		0
Sales		0		0		0		0
Issuances		0		0		0		0
Settlements		0		0		0		(2)
Transfers Into Level 3		0		0		0		0
Transfers Out Of Level 3		0		0		0		0
Closing balance		8		9		8		9
Commercial mortgage loans held for sale [Member]
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Opening balance		30				0
Gain (Loss) Included in Earnings		0				0
Gain (Loss) Included in Other Comprehensive Income (Loss)		0				0
Purchases		0				0
Sales		0				0
Issuances		60				90
Settlements		0				0
Transfers Into Level 3		0				0
Transfers Out Of Level 3		0				0
Closing balance		90				90
Residential Mortgage Servicing Rights [Member]
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Opening balance		216		268		252		257
Gain (Loss) Included in Earnings	[2]	(12)		(36)		(87)		(44)
Gain (Loss) Included in Other Comprehensive Income (Loss)		0		0		0		0
Purchases		34		9		73		28
Sales		0		0		0		0
Issuances		0		0		0		0
Settlements		0		0		0		0
Transfers Into Level 3		0		0		0		0
Transfers Out Of Level 3		0		0		0		0
Closing balance		238		241		238		241
Derivative [Member]
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Opening balance		17		13		10		8
Gain (Loss) Included in Earnings		32	[3]	32	[4]	105	[5]	85	[6]
Gain (Loss) Included in Other Comprehensive Income (Loss)		0		0		0		0
Purchases		0		0		0		0
Sales		0		0		0		0
Issuances		0		0		0		0
Settlements		(33)		(32)		(99)		(80)
Transfers Into Level 3		0		0		0		0
Transfers Out Of Level 3		0		0		0		0
Closing balance		16		13		16		13
Capital Markets Fee Income [Member] | Derivative [Member]
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Gain (Loss) Included in Earnings		3		1		16		5
Mortgage Income [Member] | Derivative [Member]
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Gain (Loss) Included in Earnings		$ 29		$ 31		$ 89		$ 80
[1]	Included in capital markets fee income and other.
[2]	Included in mortgage income.
[3]	Approximately $3 million was included in capital markets fee income and other and $29 million was included in mortgage income.
[4]	Approximately $1 million was included in capital markets fee income and other and $31 million was included in mortgage income.
[5]	Approximately $5 million was included in capital markets fee income and other and $80 million was included in mortgage income.
[6]	Approximately $16 million was included in capital markets fee income and other and $89 million was included in mortgage income.

Fair Value Measurements (Sche73

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		9 Months Ended
	Sep. 30, 2016	Sep. 30, 2015	Sep. 30, 2016	Sep. 30, 2015
Loans Held For Sale [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets, Fair Value Adjustment	$ (3)	$ (5)	$ (25)	$ (16)
Foreclosed Property And Other Real Estate [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets, Fair Value Adjustment	$ (8)	$ (9)	$ (35)	$ (56)

Fair Value Measurements (Summar

Fair Value Measurements (Summary Of Quantitative Information About Level 3 Fair Value Measurements) (Details) - USD ($) $ in Millions	9 Months Ended		12 Months Ended
	Sep. 30, 2016		Dec. 31, 2015
Trading Securities [Member] | Comparable Evaluated Quote [Member] | Level 3 [Member]
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Assets, Fair Value Disclosure, Recurring			$ 33
Residential Non Agency [Member] | Discounted Cash Flow [Member] | Level 3 [Member]
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Assets, Fair Value Disclosure, Recurring	$ 5		5
Corporate and other debt securities [Member] | Comparable Evaluated Quote [Member] | Level 3 [Member]
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Assets, Fair Value Disclosure, Recurring	3		3
Commercial mortgage loans held for sale [Member] | Comparable Evaluated Quote [Member] | Level 3 [Member]
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Assets, Fair Value Disclosure, Recurring	90
Mortgage Servicing Rights [Member] | Discounted Cash Flow [Member] | Level 3 [Member]
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Assets, Fair Value Disclosure, Recurring	238	[1]	252	[2]
Interest rate options on residential mortgage loans [Member] | Discounted Cash Flow [Member] | Level 3 [Member]
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Assets, Fair Value Disclosure, Recurring	15		9
Interest Rate Options on commercial morgage loans [Member] | Discounted Cash Flow [Member] | Level 3 [Member]
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Assets, Fair Value Disclosure, Recurring	1		1
Foreclosed Property And Other Real Estate [Member] | Property Appraisal [Member] | Level 3 [Member]
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Assets, Fair Value Disclosure, Nonrecurring	8		5
Foreclosed Property And Other Real Estate [Member] | Estimated Third-Party valuations [Member] | Level 3 [Member]
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Assets, Fair Value Disclosure, Nonrecurring	$ 4		$ 3
Recurring Fair Value Measurements [Member] | Trading Securities [Member] | Minimum [Member] | Comparable Evaluated Quote [Member]
Fair Value Inputs [Abstract]
Spread from US High Yield B Effective Yield Index			4.70%
Recurring Fair Value Measurements [Member] | Trading Securities [Member] | Maximum [Member] | Comparable Evaluated Quote [Member]
Fair Value Inputs [Abstract]
Spread from US High Yield B Effective Yield Index			4.70%
Recurring Fair Value Measurements [Member] | Trading Securities [Member] | Weighted Average [Member] | Comparable Evaluated Quote [Member]
Fair Value Inputs [Abstract]
Spread from US High Yield B Effective Yield Index			4.70%
Recurring Fair Value Measurements [Member] | Residential Non Agency [Member] | Minimum [Member] | Discounted Cash Flow [Member]
Fair Value Inputs [Abstract]
Spread to LIBOR	5.50%		5.50%
Fair Value Inputs, Prepayment Rate	3.80%		5.60%
Fair Value Inputs, Probability of Default	3.40%		2.20%
Fair Value Inputs, Loss Severity	55.90%		74.30%
Recurring Fair Value Measurements [Member] | Residential Non Agency [Member] | Maximum [Member] | Discounted Cash Flow [Member]
Fair Value Inputs [Abstract]
Spread to LIBOR	70.00%		70.10%
Fair Value Inputs, Prepayment Rate	27.20%		11.90%
Fair Value Inputs, Probability of Default	3.40%		2.20%
Fair Value Inputs, Loss Severity	55.90%		74.30%
Recurring Fair Value Measurements [Member] | Residential Non Agency [Member] | Weighted Average [Member] | Discounted Cash Flow [Member]
Fair Value Inputs [Abstract]
Spread to LIBOR	23.00%		23.00%
Fair Value Inputs, Prepayment Rate	11.90%		9.90%
Fair Value Inputs, Probability of Default	3.40%		2.20%
Fair Value Inputs, Loss Severity	55.90%		74.30%
Recurring Fair Value Measurements [Member] | Corporate and other debt securities [Member] | Minimum [Member] | Comparable Evaluated Quote [Member]
Fair Value Inputs [Abstract]
Evaluated Quote on Comparable Bonds	100.30%		100.20%
Recurring Fair Value Measurements [Member] | Corporate and other debt securities [Member] | Maximum [Member] | Comparable Evaluated Quote [Member]
Fair Value Inputs [Abstract]
Evaluated Quote on Comparable Bonds	100.30%		100.20%
Recurring Fair Value Measurements [Member] | Corporate and other debt securities [Member] | Weighted Average [Member] | Comparable Evaluated Quote [Member]
Fair Value Inputs [Abstract]
Evaluated Quote on Comparable Bonds	100.30%		100.20%
Recurring Fair Value Measurements [Member] | Commercial mortgage loans held for sale [Member] | Minimum [Member] | Comparable Evaluated Quote [Member]
Fair Value Inputs [Abstract]
Credit spreads for bonds in the commercial MBS	0.40%
Recurring Fair Value Measurements [Member] | Commercial mortgage loans held for sale [Member] | Maximum [Member] | Comparable Evaluated Quote [Member]
Fair Value Inputs [Abstract]
Credit spreads for bonds in the commercial MBS	6.00%
Recurring Fair Value Measurements [Member] | Commercial mortgage loans held for sale [Member] | Weighted Average [Member] | Comparable Evaluated Quote [Member]
Fair Value Inputs [Abstract]
Credit spreads for bonds in the commercial MBS	1.40%
Recurring Fair Value Measurements [Member] | Mortgage Servicing Rights [Member] | Minimum [Member] | Discounted Cash Flow [Member]
Fair Value Inputs [Abstract]
Fair Value Inputs, Prepayment Rate	10.40%	[2]	10.50%	[1]
Option-Adjusted Spread	8.20%	[2]	8.70%	[1]
Recurring Fair Value Measurements [Member] | Mortgage Servicing Rights [Member] | Maximum [Member] | Discounted Cash Flow [Member]
Fair Value Inputs [Abstract]
Fair Value Inputs, Prepayment Rate	28.80%	[2]	11.50%	[1]
Option-Adjusted Spread	13.50%	[2]	13.30%	[1]
Recurring Fair Value Measurements [Member] | Mortgage Servicing Rights [Member] | Weighted Average [Member] | Discounted Cash Flow [Member]
Fair Value Inputs [Abstract]
Fair Value Inputs, Prepayment Rate	12.30%	[2]	10.90%	[1]
Option-Adjusted Spread	10.60%	[2]	10.00%	[1]
Recurring Fair Value Measurements [Member] | Interest rate options on residential mortgage loans [Member] | Minimum [Member] | Discounted Cash Flow [Member]
Fair Value Inputs [Abstract]
Fair Value Inputs, Prepayment Rate	10.40%		10.50%
Option-Adjusted Spread	8.20%		8.70%
Pull-Through	28.50%		18.90%
Recurring Fair Value Measurements [Member] | Interest rate options on residential mortgage loans [Member] | Maximum [Member] | Discounted Cash Flow [Member]
Fair Value Inputs [Abstract]
Fair Value Inputs, Prepayment Rate	28.80%		11.50%
Option-Adjusted Spread	13.50%		13.30%
Pull-Through	99.40%		99.40%
Recurring Fair Value Measurements [Member] | Interest rate options on residential mortgage loans [Member] | Weighted Average [Member] | Discounted Cash Flow [Member]
Fair Value Inputs [Abstract]
Fair Value Inputs, Prepayment Rate	12.30%		10.90%
Option-Adjusted Spread	10.60%		10.00%
Pull-Through	77.60%		80.70%
Recurring Fair Value Measurements [Member] | Interest Rate Options on commercial morgage loans [Member] | Minimum [Member] | Discounted Cash Flow [Member]
Fair Value Inputs [Abstract]
Internal Rate of Return	7.00%		12.00%
Recurring Fair Value Measurements [Member] | Interest Rate Options on commercial morgage loans [Member] | Maximum [Member] | Discounted Cash Flow [Member]
Fair Value Inputs [Abstract]
Internal Rate of Return	17.00%		12.00%
Recurring Fair Value Measurements [Member] | Interest Rate Options on commercial morgage loans [Member] | Weighted Average [Member] | Discounted Cash Flow [Member]
Fair Value Inputs [Abstract]
Internal Rate of Return	12.00%		12.00%
Nonrecurring Fair Value Measurements [Member] | Foreclosed Property And Other Real Estate [Member] | Minimum [Member] | Property Appraisal [Member]
Fair Value Inputs [Abstract]
Fair Value Inputs, Comparability Adjustments	25.00%		25.00%
Nonrecurring Fair Value Measurements [Member] | Foreclosed Property And Other Real Estate [Member] | Minimum [Member] | Estimated Third-Party valuations [Member]
Fair Value Inputs [Abstract]
Fair Value Measurement Range Percentage	35.00%		3.00%
Nonrecurring Fair Value Measurements [Member] | Foreclosed Property And Other Real Estate [Member] | Maximum [Member] | Property Appraisal [Member]
Fair Value Inputs [Abstract]
Fair Value Inputs, Comparability Adjustments	80.90%		44.00%
Nonrecurring Fair Value Measurements [Member] | Foreclosed Property And Other Real Estate [Member] | Maximum [Member] | Estimated Third-Party valuations [Member]
Fair Value Inputs [Abstract]
Fair Value Measurement Range Percentage	35.00%		58.80%
Nonrecurring Fair Value Measurements [Member] | Foreclosed Property And Other Real Estate [Member] | Weighted Average [Member] | Property Appraisal [Member]
Fair Value Inputs [Abstract]
Fair Value Inputs, Comparability Adjustments	54.00%		30.30%
Nonrecurring Fair Value Measurements [Member] | Foreclosed Property And Other Real Estate [Member] | Weighted Average [Member] | Estimated Third-Party valuations [Member]
Fair Value Inputs [Abstract]
Fair Value Measurement Range Percentage	35.00%		39.20%
Commercial Loan [Member] | Loans Held For Sale [Member] | Activity For Sales Of Similar Loans [Member] | Level 3 [Member]
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Assets, Fair Value Disclosure, Nonrecurring	$ 11		$ 36
Commercial Loan [Member] | Nonrecurring Fair Value Measurements [Member] | Loans Held For Sale [Member] | Minimum [Member] | Activity For Sales Of Similar Loans [Member]
Fair Value Inputs [Abstract]
Fair Value Inputs, Comparability Adjustments	4.00%		11.10%
Commercial Loan [Member] | Nonrecurring Fair Value Measurements [Member] | Loans Held For Sale [Member] | Maximum [Member] | Activity For Sales Of Similar Loans [Member]
Fair Value Inputs [Abstract]
Fair Value Inputs, Comparability Adjustments	96.00%		85.70%
Commercial Loan [Member] | Nonrecurring Fair Value Measurements [Member] | Loans Held For Sale [Member] | Weighted Average [Member] | Activity For Sales Of Similar Loans [Member]
Fair Value Inputs [Abstract]
Fair Value Inputs, Comparability Adjustments	56.20%		69.00%
[1]	See Note 7 to the consolidated financial statements of the Annual Report on Form 10-K for the year ended December 31, 2015 for additional disclosures related to assumptions used in the fair value calculation for residential mortgage servicing rights.
[2]	See Note 5 for additional disclosures related to assumptions used in the fair value calculation for residential mortgage servicing rights.

Fair Value Measurements (Fair V

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		9 Months Ended
	Sep. 30, 2016	Sep. 30, 2015	Sep. 30, 2016	Sep. 30, 2015	Dec. 31, 2015
Fair Value, Option, Quantitative Disclosures [Line Items]
Mortgages Held-for-sale, Fair Value Disclosure	$ 549		$ 549		$ 353
Fair Value Option Mortgages Held For Sale Aggregate Unpaid Principal	529		529		341
Aggregate Fair Value Less Aggregate Unpaid Principal	20		20		$ 12
Net gains (losses) resulting from changes in fair value	$ 0	$ 8	$ 9	$ 0

Fair Value Measurements (Sche76

Fair Value Measurements (Schedule Of Carrying Amounts And Estimated Fair Values Of Financial Instruments) (Details) - USD ($) $ in Millions	Sep. 30, 2016		Dec. 31, 2015
Financial Assets [Abstract]
Trading account securities	$ 120		$ 143
Held-to-maturity Securities	1,485		1,969
Securities available for sale	23,859		22,710
Loans held for sale, at fair value	549		353
Other earning assets	1,505		1,652
Derivative Asset	467		417
Financial Liabilities [Abstract]
Derivative Liabilities	221		200
Fair Value Discount On Loan Portfolio Amount	$ 4,100		$ 3,700
Fair value discount on loan portfolio, rate	5.20%		4.70%
Leases, carrying amount excluded	$ 936		$ 916
Property Subject to or Available for Operating Lease, Net	734		834
Carrying Amount [Member]
Financial Assets [Abstract]
Cash and cash equivalents	4,238		5,314
Trading account securities	120		143
Held-to-maturity Securities	1,431		1,946
Securities available for sale	23,859		22,710
Loans held for sale, at fair value	571		448
Net loans (excluding leases)	78,821	[1],[2]	79,140	[3],[4]
Other earning assets	771	[5]	818	[6]
Derivative Asset	855		826
Financial Liabilities [Abstract]
Derivative Liabilities	792		758
Deposits	99,289		98,430
Short-term Borrowings	0		10
Long-term Borrowings	6,054		8,349
Loan commitments and letters of credit	105		85
Indemnification obligation	32		77
Estimate of Fair Value [Member]
Financial Assets [Abstract]
Cash and cash equivalents	4,238	[7]	5,314	[8]
Trading account securities	120	[7]	143	[8]
Held-to-maturity Securities	1,485	[7]	1,969	[8]
Securities available for sale	23,859	[7]	22,710	[8]
Loans held for sale, at fair value	549	[7]	448	[8]
Net loans (excluding leases)	74,713	[1],[2],[7]	75,399	[3],[4],[8]
Other earning assets	771	[5],[7]	818	[6],[8]
Derivative Asset	855	[7]	826	[8]
Financial Liabilities [Abstract]
Derivative Liabilities	792	[7]	758	[8]
Deposits	99,375	[7]	98,464	[8]
Short-term Borrowings	0	[7]	10	[8]
Long-term Borrowings	6,369	[7]	8,615	[8]
Loan commitments and letters of credit	512	[7]	495	[8]
Indemnification obligation	30	[7]	67	[8]
Level 1 [Member]
Financial Assets [Abstract]
Cash and cash equivalents	4,238		5,314
Trading account securities	120		110
Held-to-maturity Securities	0		1
Securities available for sale	422		508
Loans held for sale, at fair value	0		0
Net loans (excluding leases)	0	[1],[2]	0	[3],[4]
Other earning assets	0	[5]	0	[6]
Derivative Asset	4		0
Financial Liabilities [Abstract]
Derivative Liabilities	0		0
Deposits	0		0
Short-term Borrowings	0		0
Long-term Borrowings	0		0
Loan commitments and letters of credit	0		0
Indemnification obligation	0		0
Level 2 [Member]
Financial Assets [Abstract]
Cash and cash equivalents	0		0
Trading account securities	0		0
Held-to-maturity Securities	1,485		1,968
Securities available for sale	23,429		22,194
Loans held for sale, at fair value	459		353
Net loans (excluding leases)	0	[1],[2]	0	[3],[4]
Other earning assets	771	[5]	818	[6]
Derivative Asset	835		816
Financial Liabilities [Abstract]
Derivative Liabilities	792		758
Deposits	99,375		98,464
Short-term Borrowings	0		10
Long-term Borrowings	4,102		5,775
Loan commitments and letters of credit	0		0
Indemnification obligation	0		0
Level 3 [Member]
Financial Assets [Abstract]
Cash and cash equivalents	0		0
Trading account securities	0		33
Held-to-maturity Securities	0		0
Securities available for sale	8		8
Loans held for sale, at fair value	90		95
Net loans (excluding leases)	74,713	[1],[2]	75,399	[3],[4]
Other earning assets	0	[5]	0	[6]
Derivative Asset	16		10
Financial Liabilities [Abstract]
Derivative Liabilities	0		0
Deposits	0		0
Short-term Borrowings	0		0
Long-term Borrowings	2,267		2,840
Loan commitments and letters of credit	512		495
Indemnification obligation	$ 30		$ 67
[1]	Excluded from this table is the capital lease carrying amount of $936 million at September 30, 2016.
[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 at September 30, 2016 was $4.1 billion or 5.2 percent.
[3]	Excluded from this table is the capital lease carrying amount of $916 million at December 31, 2015.
[4]	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 at December 31, 2015 was $3.7 billion or 4.7 percent.
[5]	Excluded from this table is the operating lease carrying amount of $734 million at September 30, 2016.
[6]	Excluded from this table is the operating lease carrying amount of $834 million at December 31, 2015.
[7]	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 makes adjustments for interest rates, market liquidity and credit spreads as appropriate.
[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 makes adjustments for interest rates, market liquidity and credit spreads as appropriate.

Fair Value Measurements (Narrat

Fair Value Measurements (Narrative) (Details) - USD ($)	Sep. 30, 2016	Sep. 30, 2015
Fair Value Disclosures [Abstract]
Fair Value, Assets, Level 1 to Level 2 Transfers, Amount	$ 0	$ 0

Business Segment Information (S

Business Segment Information (Schedule Of Financial Information By Reportable Segment) (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2016	Sep. 30, 2015	Sep. 30, 2016	Sep. 30, 2015
Segment Reporting Information [Line Items]
Non-interest income	$ 599	$ 497	$ 1,631	$ 1,557
Non-interest expense	934	895	2,718	2,734
Income from continuing operations before income taxes	471	378	1,244	1,122
Income tax expense (benefit)	152	116	380	335
Corporate Bank [Member]
Segment Reporting Information [Line Items]
Net interest income and other financing income (loss)	352	385	1,087	1,141
Provision (Credit) for Loan Losses	72	77	216	225
Non-interest income	130	112	380	318
Non-interest expense	220	226	645	662
Income from continuing operations before income taxes	190	194	606	572
Income tax expense (benefit)	72	74	230	218
Net income	118	120	376	354
Average assets	53,798	53,647	54,420	53,016
Consumer Bank [Member]
Segment Reporting Information [Line Items]
Net interest income and other financing income (loss)	514	507	1,529	1,510
Provision (Credit) for Loan Losses	74	70	215	206
Non-interest income	291	272	831	806
Non-interest expense	532	522	1,552	1,547
Income from continuing operations before income taxes	199	187	593	563
Income tax expense (benefit)	76	71	225	214
Net income	123	116	368	349
Average assets	34,843	33,710	34,373	33,288
Wealth Management [Member]
Segment Reporting Information [Line Items]
Net interest income and other financing income (loss)	43	41	131	125
Provision (Credit) for Loan Losses	5	6	17	17
Non-interest income	107	104	321	303
Non-interest expense	120	115	350	335
Income from continuing operations before income taxes	25	24	85	76
Income tax expense (benefit)	10	9	33	29
Net income	15	15	52	47
Average assets	3,233	3,161	3,235	3,150
Other [Member]
Segment Reporting Information [Line Items]
Net interest income and other financing income (loss)	(74)	(97)	(202)	(305)
Provision (Credit) for Loan Losses	(122)	(93)	(234)	(276)
Non-interest income	71	9	99	130
Non-interest expense	62	32	171	190
Income from continuing operations before income taxes	57	(27)	(40)	(89)
Income tax expense (benefit)	(6)	(38)	(108)	(126)
Net income	63	11	68	37
Average assets	33,955	32,402	33,706	32,008
Continuing Operations [Member]
Segment Reporting Information [Line Items]
Net interest income and other financing income (loss)	835	836	2,545	2,471
Provision (Credit) for Loan Losses	29	60	214	172
Non-interest income	599	497	1,631	1,557
Non-interest expense	934	895	2,718	2,734
Income from continuing operations before income taxes	471	378	1,244	1,122
Income tax expense (benefit)	152	116	380	335
Net income	319	262	864	787
Average assets	125,829	122,920	125,734	121,462
Discontinued Operations [Member]
Segment Reporting Information [Line Items]
Net interest income and other financing income (loss)	0	0	0	0
Provision (Credit) for Loan Losses	0	0	0	0
Non-interest income	0	0	0	0
Non-interest expense	(2)	6	(7)	16
Income from continuing operations before income taxes	2	(6)	7	(16)
Income tax expense (benefit)	1	(2)	3	(6)
Net income	1	(4)	4	(10)
Average assets	0	0	0	0
Consolidated [Member]
Segment Reporting Information [Line Items]
Net interest income and other financing income (loss)	835	836	2,545	2,471
Provision (Credit) for Loan Losses	29	60	214	172
Non-interest income	599	497	1,631	1,557
Non-interest expense	932	901	2,711	2,750
Income from continuing operations before income taxes	473	372	1,251	1,106
Income tax expense (benefit)	153	114	383	329
Net income	320	258	868	777
Average assets	$ 125,829	$ 122,920	$ 125,734	$ 121,462

Commitments, Contingencies an79

Commitments, Contingencies and Guarantees (Credit Risk Of Financial Instruments By Contractual Amounts) (Details) - USD ($) $ in Millions	Sep. 30, 2016	Jun. 30, 2016	Dec. 31, 2015	Sep. 30, 2015	Jun. 30, 2015	Dec. 31, 2014
Other Commitments [Line Items]
Unused commitments to extend credit	$ 44,330		$ 45,516
Standby Letters Of Credit Commitment	1,423		1,477
Commercial letters of credit	88		63
Liabilities associated with standby letters of credit	33		32
Assets associated with standby letters of credit	33		33
Reserve for unfunded credit commitments	$ 72	$ 64	$ 52	$ 64	$ 64	$ 65

Commitments, Contingencies an80

Commitments, Contingencies and Guarantees (Narrative) (Details) - USD ($) $ in Millions	Sep. 13, 2016	Sep. 30, 2016		Sep. 30, 2016		Dec. 31, 2015		Apr. 02, 2012
Long-term Purchase Commitment [Line Items]
Litigation Settlement Amount	$ 52.4
Insurance Proceeds		$ 47
Fair value of the indemnification obligation								$ 385
Fair value of the indemnification obligation, incremental increase over FAS 5 reserve								$ 256
Fannie Mae DUS Servicing Portfolio, Amount		1,700		$ 1,700		$ 1,200
Maximum Quantifiable Fannie Mae DUS Loss Share Guarantee		516		516		356
Estimated Fair Value of the Fannie Mae DUS Loss Share Guarantee		3		3		3
Carrying Amount [Member]
Long-term Purchase Commitment [Line Items]
Indemnification obligation		32		32		77
Carrying Amount [Member] | Indemnification Agreement [Member]
Long-term Purchase Commitment [Line Items]
Indemnification obligation		32		32
Estimate of Fair Value [Member]
Long-term Purchase Commitment [Line Items]
Indemnification obligation		30	[1]	30	[1]	$ 67	[2]
Estimate of Fair Value [Member] | Indemnification Agreement [Member]
Long-term Purchase Commitment [Line Items]
Indemnification obligation		$ 30		$ 30
Minimum [Member] | Indemnification Agreement [Member]
Long-term Purchase Commitment [Line Items]
Guarantor Obligations, Term				one
Maximum [Member] | Indemnification Agreement [Member]
Long-term Purchase Commitment [Line Items]
Guarantor Obligations, Term				two
[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 makes adjustments for interest rates, market liquidity and credit spreads as appropriate.
[2]	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 makes adjustments for interest rates, market liquidity and credit spreads as appropriate.