Regions Financial (RF) 10-Q 5 Nov 15 2015 Q3 Quarterly report Financial data

Document and Entity Information

Document and Entity Information - shares	9 Months Ended
	Sep. 30, 2015	Nov. 02, 2015
Document Entity Information [Abstract]
Document Type	10-Q
Amendment Flag	false
Document Period End Date	Sep. 30, 2015
Document Fiscal Year Focus	2,015
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		1,305,468,694

CONSOLIDATED BALANCE SHEETS

CONSOLIDATED BALANCE SHEETS - USD ($) $ in Millions	Sep. 30, 2015	Dec. 31, 2014
Assets
Cash and due from banks	$ 1,726	$ 1,601
Interest-bearing deposits in other banks	3,217	2,303
Federal funds sold and securities purchased under agreements to resell	65	100
Trading account securities	106	106
Securities held to maturity (estimated fair value of $2,048 and $2,209, respectively)	2,001	2,175
Securities available for sale	22,714	22,580
Loans held for sale (includes $421 and $440 measured at fair value, respectively)	453	541
Loans, net of unearned income	81,063	77,307
Allowance for loan losses	(1,115)	(1,103)
Net loans	79,948	76,204
Other interest-earning assets	93	89
Premises and equipment, net	2,122	2,193
Interest receivable	316	310
Goodwill	4,831	4,816
Residential mortgage servicing rights at fair value	241	257
Other identifiable intangible assets	263	275
Other assets	6,693	6,013
Total assets	124,789	119,563
Deposits:
Non-interest-bearing	34,117	31,747
Interest-bearing	63,061	62,453
Total deposits	97,178	94,200
Borrowed funds:
Federal funds purchased and securities sold under agreements to repurchase	0	1,753
Other short-term borrowings	0	500
Total short-term borrowings	0	2,253
Long-term borrowings	7,364	3,462
Total borrowed funds	7,364	5,715
Other liabilities	3,295	2,775
Total liabilities	107,837	102,690
Stockholders’ equity:
Preferred stock, authorized 10 million shares, par value $1.00 per share	836	884
Common stock, authorized 3 billion shares, par value $.01 per share:	13	14
Additional paid-in capital	18,019	18,767
Retained earnings (deficit)	(400)	(1,177)
Treasury stock, at cost—41,261,008 and 41,262,645 shares, respectively	(1,377)	(1,377)
Accumulated other comprehensive income (loss), net	(139)	(238)
Total stockholders’ equity	16,952	16,873
Total liabilities and stockholders’ equity	$ 124,789	$ 119,563

CONSOLIDATED BALANCE SHEETS (Pa

CONSOLIDATED BALANCE SHEETS (Parenthetical) - USD ($) $ in Millions	Sep. 30, 2015	Dec. 31, 2014
Securities held to maturity, estimated fair value	$ 2,048	$ 2,209
Loans held for sale, at fair value	$ 421	$ 440
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	1,345,648,066	1,395,204,638
Treasury Stock, Shares	41,261,008	41,262,645
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, 2015	Sep. 30, 2014	Sep. 30, 2015	Sep. 30, 2014
Interest income on:
Loans, including fees		$ 748	$ 736	$ 2,201	$ 2,205
Securities - taxable		146	154	448	464
Loans held for sale		5	5	12	17
Trading account securities		0	0	4	2
Other interest-earning assets		2	2	5	7
Total interest income		901	897	2,670	2,695
Interest expense on:
Deposits		27	26	82	78
Short-term borrowings		0	0	1	1
Long-term borrowings		38	50	116	156
Total interest expense		65	76	199	235
Net interest income		836	821	2,471	2,460
Provision for loan losses		60	24	172	61
Net interest income after provision for loan losses		776	797	2,299	2,399
Non-interest income:
Service charges on deposit accounts		167	181	496	528
Card and ATM fees		93	85	268	248
Mortgage income		39	39	125	122
Securities gains (losses), net		7	7	18	15
Other		191	185	650	516
Total non-interest income		497	497	1,557	1,429
Non-interest expense:
Salaries and employee benefits		470	456	1,405	1,354
Net occupancy expense		90	92	270	275
Furniture and equipment expense		77	73	224	213
Other		258	205	835	621
Total non-interest expense		895	826	2,734	2,463
Income from continuing operations before income taxes		378	468	1,122	1,365
Income tax expense		116	151	335	450
Income from continuing operations		262	317	787	915
Discontinued operations:
Income (loss) from discontinued operations before income taxes		(6)	5	(16)	26
Income tax expense (benefit)		(2)	2	(6)	10
Income (loss) from discontinued operations, net of tax		(4)	3	(10)	16
Net income		258	320	777	931
Net income from continuing operations available to common shareholders		246	297	739	879
Net income available to common shareholders		$ 242	$ 300	$ 729	$ 895
Weighted-average number of shares outstanding:
Basic (in shares)		1,319	1,378	1,333	1,378
Diluted (in shares)		1,326	1,389	1,343	1,390
Earnings per common share from continuing operations:
Basic (in dollars per share)	[1]	$ 0.19	$ 0.22	$ 0.55	$ 0.64
Diluted (in dollars per share)	[1]	0.19	0.21	0.55	0.63
Earnings per common share:
Basic (in dollars per share)	[1]	0.18	0.22	0.55	0.65
Diluted (in dollars per share)	[1]	0.18	0.22	0.54	0.64
Cash dividends declared per common share (in dollars per share)		$ 0.06	$ 0.05	$ 0.17	$ 0.13
[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, 2015	Sep. 30, 2014	Sep. 30, 2015	Sep. 30, 2014
Statement of Comprehensive Income [Abstract]
Net income	$ 258	$ 320	$ 777	$ 931
Unrealized losses on securities transferred to held to maturity:
Unrealized losses on securities transferred to held to maturity during the period (net of zero and zero tax effect, respectively)	0	0	0	0
Less: Reclassification Adjustments for Amortization of Unrealized Losses on Securities Transferred to Held to Maturity, Net of Tax	(2)	(2)	(6)	(6)
Net change in unrealized losses on securities transferred to held to maturity, net of tax	2	2	6	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)	47	(87)	(25)	143
Less: reclassification adjustments for securities gains (losses) realized in net income (net of tax)	5	5	12	10
Net change in unrealized gains (losses) on securities available for sale, net of tax	42	(92)	(37)	133
Unrealized gains (losses) on derivative instruments designated as cash flow hedges:
Unrealized holding gains (losses) on derivatives arising during the period (net of tax)	121	(16)	175	48
Other Comprehensive Income (Loss), Reclassification Adjustment from AOCI on Derivatives, Net of Tax	25	21	67	56
Net change in unrealized gains (losses) on derivative instruments, net of tax	96	(37)	108	(8)
Defined benefit pension plans and other post employment benefits:
Net actuarial gains (losses) arising during the period (net of tax)	(1)	0	(2)	1
Less: reclassification adjustments for amortization of actuarial loss and prior service cost realized in net income (net of tax)	(9)	(5)	(24)	(13)
Net change from defined benefit pension plans and other post employment benefits, net of tax	8	5	22	14
Other comprehensive income (loss), net of tax	148	(122)	99	145
Comprehensive income	$ 406	$ 198	$ 876	$ 1,076

CONSOLIDATED STATEMENTS OF COM6

CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (Parenthetical) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2015	Sep. 30, 2014	Sep. 30, 2015	Sep. 30, 2014
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	(1)	(1)	(4)	(4)
Unrealized holding gains on available for sale securities, tax	28	(53)	(17)	87
Reclassification adjustments for securities gains realized in net income, tax	2	2	6	5
Unrealized holding gains on derivatives, tax	75	(10)	107	30
Reclassification adjustments for derivative gains realized in net income, tax	16	13	41	35
Net actuarial gains and losses arising during the period, tax	0	0	0	2
Amortization of actuarial loss and prior service cost realized in net income, and other, tax	$ (4)	$ (2)	$ (13)	$ (6)

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]	Series B Preferred Stock [Member]
Beginning Balance Outstanding (in shares) at Dec. 31, 2013		1	1,378
Beginning Balance at Dec. 31, 2013	$ 15,660	$ 450	$ 14	$ 19,216	$ (2,324)	$ (1,377)	$ (319)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	931				931
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	133						133
Net change in unrealized gains and losses on derivative instruments, net of tax and reclassification adjustment	(8)						(8)
Net change from employee benefit plans, net of tax	14						14
Cash dividends declared	(180)			(180)
Preferred stock dividends	(36)	$ (36)
Net proceeds from issuance of preferred stock	486							$ 486
Impact of share repurchase, shares			(1)
Impact of share repurchase, value	(8)			(8)
Impact of stock transaction under compensation plans, net, shares			2
Impact of stock transaction under compensation plans, net	41			41
Ending Balance Outstanding (in shares) at Sep. 30, 2014		1	1,379
Ending Balance at Sep. 30, 2014	17,039	$ 900	$ 14	19,069	(1,393)	(1,377)	(174)
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)
Net proceeds from issuance of preferred stock	0
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)

CONSOLIDATED STATEMENTS OF CHA8

CONSOLIDATED STATEMENTS OF CHANGES IN STOCKHOLDERS' EQUITY (Parenthetical) - $ / shares	Apr. 23, 2015	Sep. 30, 2015	Jun. 30, 2015	Mar. 31, 2015	Sep. 30, 2014	Jun. 30, 2014	Mar. 31, 2014	Sep. 30, 2015	Sep. 30, 2014
Statement of Stockholders' Equity [Abstract]
Cash dividend declared (in dollars per share)	$ 0.06	$ 0.06	$ 0.06	$ 0.05	$ 0.05	$ 0.05	$ 0.03	$ 0.17	$ 0.13

CONSOLIDATED STATEMENTS OF CASH

CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Millions	9 Months Ended
	Sep. 30, 2015	Sep. 30, 2014
Operating activities:
Net income	$ 777	$ 931
Adjustments to reconcile net income to net cash from operating activities:
Provision for loan losses	172	61
Depreciation, amortization and accretion, net	384	391
Securities (gains) losses, net	(18)	(15)
Deferred income tax expense	68	176
Originations and purchases of loans held for sale	(1,931)	(1,848)
Proceeds from sales of loans held for sale	2,087	1,948
Gain on TDRs held for sale, net	0	(35)
(Gain) loss on sale of loans, net	(70)	(89)
(Gain) loss on early extinguishment of debt	43	0
Net change in operating assets and liabilities:
Trading account securities	0	8
Other interest-earning assets	(4)	(5)
Interest receivable and other assets	116	(53)
Other liabilities	(95)	64
Other	36	(16)
Net cash from operating activities	1,565	1,518
Investing activities:
Proceeds from maturities of securities held to maturity	174	130
Proceeds from sales of securities available for sale	1,201	1,384
Proceeds from maturities of securities available for sale	2,958	2,350
Purchases of securities available for sale	(4,382)	(4,524)
Proceeds from sales of loans	59	649
Purchases of loans	(857)	(814)
Purchases of mortgage servicing rights	(4)	(12)
Net change in loans	(3,291)	(1,662)
Net purchases of other assets	(193)	(164)
Net cash from investing activities	(4,335)	(2,663)
Financing activities:
Net change in deposits	2,978	1,677
Net change in short-term borrowings	(2,253)	(289)
Proceeds from long-term borrowings	4,997	0
Payments on long-term borrowings	(1,142)	(1,001)
Cash dividends on common stock	(226)	(180)
Cash dividends on preferred stock	(48)	(36)
Repurchase of common stock	(544)	(8)
Net proceeds from issuance of preferred stock	0	486
Other	12	6
Net cash from financing activities	3,774	655
Net change in cash and cash equivalents	1,004	(490)
Cash and cash equivalents at beginning of year	4,004	5,273
Cash and cash equivalents at end of period	$ 5,008	$ 4,783

Basis of Presentation

Basis of Presentation	9 Months Ended
	Sep. 30, 2015
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 primarily in Alabama, Arkansas, Florida, Georgia, Illinois, Indiana, Iowa, Kentucky, Louisiana, Mississippi, Missouri, North Carolina, South Carolina, Tennessee, Texas and Virginia. The Company is subject to competition from other financial institutions, is subject to the regulations of certain government agencies and undergoes periodic examinations by certain of those 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 accounting principles generally accepted in the United States (“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, 2014 . 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 & Company, Inc. (“Morgan Keegan”) and related affiliates. The transaction closed on April 2, 2012. See Note 2 and Note 15 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, 2014 . Effective January 1, 2015, the Company adopted new guidance related to the accounting for investments in qualified affordable housing projects. For investments that met the criteria specified in the guidance, Regions elected to use the proportional amortization method. Under this method, the initial investment is amortized in proportion to the actual tax credits and other tax benefits to be received in the current period as compared to the total tax credits and other tax benefits expected to be received over the life of the investment. The amortization and tax benefits are included as a component of income tax expense. The guidance required retrospective application. All prior period amounts impacted by this guidance have been revised. The cumulative effect of the retrospective application was a $116 million decrease to retained earnings (deficit), a $22 million increase to other interest-earning assets and a $138 million decrease to other assets. The Company's total investments in qualified affordable housing projects were $918 million and $818 million at September 30, 2015 and December 31, 2014 , respectively. These investments are reflected in other assets on Regions' consolidated balance sheets. The Company recognized $77 million and $67 million of amortization expense and $87 million and $78 million of tax credits related to these investments during the nine months ended September 30, 2015 and 2014 , respectively. The Company also recognized $19 million and $17 million of other tax benefits related to these investments for nine months ended September 30, 2015 and 2014 , respectively. Certain other prior period amounts have 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, 2015
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 Financial, Inc. (“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 15 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 2015 2014 2015 2014 (In millions, except per share data) Non-interest income: Insurance proceeds $ — $ 19 $ — $ 19 Total non-interest income — 19 — 19 Non-interest expense: Professional and legal expenses 7 14 16 (8 ) Other (1 ) — — 1 Total non-interest expense 6 14 16 (7 ) Income (loss) from discontinued operations before income taxes (6 ) 5 (16 ) 26 Income tax expense (benefit) (2 ) 2 (6 ) 10 Income (loss) from discontinued operations, net of tax $ (4 ) $ 3 $ (10 ) $ 16 Earnings (loss) per common share from discontinued operations: Basic $ (0.00 ) $ 0.00 $ (0.01 ) $ 0.01 Diluted $ (0.00 ) $ 0.00 $ (0.01 ) $ 0.01

Securities

Securities	9 Months Ended
	Sep. 30, 2015
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, 2015 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: U.S. Treasury securities $ 1 $ — $ — $ 1 $ — $ — $ 1 Federal agency securities 350 — (11 ) 339 11 — 350 Mortgage-backed securities: Residential agency 1,540 — (64 ) 1,476 36 — 1,512 Commercial agency 190 — (5 ) 185 — — 185 $ 2,081 $ — $ (80 ) $ 2,001 $ 47 $ — $ 2,048 Securities available for sale: U.S. Treasury securities $ 180 $ 2 $ — $ 182 $ 182 Federal agency securities 222 4 — 226 226 Obligations of states and political subdivisions 1 — — 1 1 Mortgage-backed securities: Residential agency 15,613 238 (31 ) 15,820 15,820 Residential non-agency 6 — — 6 6 Commercial agency 2,379 36 (1 ) 2,414 2,414 Commercial non-agency 1,404 13 (7 ) 1,410 1,410 Corporate and other debt securities 1,798 17 (53 ) 1,762 1,762 Equity securities 887 8 (2 ) 893 893 $ 22,490 $ 318 $ (94 ) $ 22,714 $ 22,714 December 31, 2014 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 — (12 ) 338 6 — 344 Mortgage-backed securities: Residential agency 1,698 — (71 ) 1,627 35 (1 ) 1,661 Commercial agency 216 — (7 ) 209 — (6 ) 203 $ 2,265 $ — $ (90 ) $ 2,175 $ 41 $ (7 ) $ 2,209 Securities available for sale: U.S. Treasury securities $ 176 $ — $ — $ 176 $ 176 Federal agency securities 233 2 — 235 235 Obligations of states and political subdivisions 2 — — 2 2 Mortgage-backed securities: Residential agency 15,788 283 (33 ) 16,038 16,038 Residential non-agency 7 1 — 8 8 Commercial agency 1,959 14 (9 ) 1,964 1,964 Commercial non-agency 1,489 14 (9 ) 1,494 1,494 Corporate and other debt securities 1,980 36 (26 ) 1,990 1,990 Equity securities 662 12 (1 ) 673 673 $ 22,296 $ 362 $ (78 ) $ 22,580 $ 22,580 _________ (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. Equity securities in the tables above included the following amortized cost related to Federal Reserve Bank stock and Federal Home Loan Bank (“FHLB”) stock. Shares in the Federal Reserve Bank and FHLB are accounted for at amortized cost, which approximates fair value. September 30, 2015 December 31, 2014 (In millions) Federal Reserve Bank $ 484 $ 488 Federal Home Loan Bank 197 39 Securities with carrying values of $13.4 billion and $12.1 billion at September 30, 2015 and December 31, 2014 , respectively, were pledged to secure public funds, trust deposits and certain borrowing arrangements. Included within total pledged securities is approximately $50 million and zero of encumbered U.S. Treasury securities at September 30, 2015 and December 31, 2014 , respectively. The amortized cost and estimated fair value of securities available for sale and securities held to maturity at September 30, 2015 , 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: Due in one year or less $ 1 $ 1 Due after one year through five years 350 350 Mortgage-backed securities: Residential agency 1,540 1,512 Commercial agency 190 185 $ 2,081 $ 2,048 Securities available for sale: Due in one year or less $ 95 $ 95 Due after one year through five years 835 842 Due after five years through ten years 968 952 Due after ten years 303 282 Mortgage-backed securities: Residential agency 15,613 15,820 Residential non-agency 6 6 Commercial agency 2,379 2,414 Commercial non-agency 1,404 1,410 Equity securities 887 893 $ 22,490 $ 22,714 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, 2015 and December 31, 2014 . 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, 2015 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 $ 223 $ (3 ) $ 1,173 $ (25 ) $ 1,396 $ (28 ) Commercial agency — — 185 (5 ) 185 (5 ) $ 223 $ (3 ) $ 1,358 $ (30 ) $ 1,581 $ (33 ) Securities available for sale: U.S. Treasury securities $ 4 $ — $ 9 $ — $ 13 $ — Federal agency securities — — 3 — 3 — Mortgage-backed securities: Residential agency 3,658 (20 ) 816 (11 ) 4,474 (31 ) Commercial agency 348 (1 ) 160 — 508 (1 ) Commercial non-agency 432 (4 ) 248 (3 ) 680 (7 ) All other securities 708 (29 ) 299 (26 ) 1,007 (55 ) $ 5,150 $ (54 ) $ 1,535 $ (40 ) $ 6,685 $ (94 ) December 31, 2014 Less Than Twelve Months Twelve Months or More Total Estimated Gross Estimated Gross Estimated Gross (In millions) Securities held to maturity: Federal agency securities $ — $ — $ 344 $ (6 ) $ 344 $ (6 ) Mortgage-backed securities: Residential agency — — 1,659 (37 ) 1,659 (37 ) Commercial agency — — 203 (13 ) 203 (13 ) $ — $ — $ 2,206 $ (56 ) $ 2,206 $ (56 ) Securities available for sale: U.S. Treasury securities $ 74 $ — $ 3 $ — $ 77 $ — Federal agency securities — — 3 — 3 — Mortgage-backed securities: Residential agency 1,178 (5 ) 2,587 (28 ) 3,765 (33 ) Commercial agency 464 (4 ) 316 (5 ) 780 (9 ) Commercial non-agency 242 (1 ) 500 (8 ) 742 (9 ) All other securities 400 (7 ) 455 (20 ) 855 (27 ) $ 2,358 $ (17 ) $ 3,864 $ (61 ) $ 6,222 $ (78 ) The number of individual positions in an unrealized loss position in the tables above increase d from 827 at December 31, 2014 to 843 at September 30, 2015 . The changes in the number of positions and the total amount of unrealized losses from year-end 2014 were primarily due to changes in interest rates and spreads within various fixed income products. In instances where an unrealized loss existed, there was no indication of a material 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, 2015. Such impairments were the result of the Company either having decided to sell or a belief that, pursuant to certain governance, it is more likely than not that the Company will be required to sell certain positions. For the quarter ending September 30, 2015, such impairments totaled $6 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 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 2015 2014 2015 2014 (In millions) Gross realized gains $ 15 $ 9 $ 29 $ 25 Gross realized losses (2 ) (2 ) (5 ) (8 ) Other-than-temporary-impairment ("OTTI") (6 ) — (6 ) (2 ) Securities gains, net $ 7 $ 7 $ 18 $ 15

Loans and the Allowance for Cre

Loans and the Allowance for Credit Losses	9 Months Ended
	Sep. 30, 2015
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, 2015 December 31, 2014 (In millions, net of unearned income) Commercial and industrial $ 35,906 $ 32,732 Commercial real estate mortgage—owner-occupied 7,741 8,263 Commercial real estate construction—owner-occupied 406 407 Total commercial 44,053 41,402 Commercial investor real estate mortgage 4,386 4,680 Commercial investor real estate construction 2,525 2,133 Total investor real estate 6,911 6,813 Residential first mortgage 12,730 12,315 Home equity 10,947 10,932 Indirect—vehicles 3,895 3,642 Indirect—other consumer 490 206 Consumer credit card 1,016 1,009 Other consumer 1,021 988 Total consumer 30,099 29,092 $ 81,063 $ 77,307 During the three months ended September 30, 2015 and 2014 , Regions purchased approximately $310 million and $296 million , respectively, in indirect-vehicles and indirect-other consumer loans from third parties. During the nine months ended September 30, 2015 and 2014 , the comparable loan purchase amounts were approximately $857 million and $814 million , respectively. At September 30, 2015 , $14.6 billion in net eligible loans held by Regions were pledged to secure borrowings from the FHLB. At September 30, 2015 , an additional $30.9 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, 2014 , 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, 2015 and 2014 . The total allowance for loan losses and the related loan portfolio ending balances as of September 30, 2015 and 2014 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 troubled debt restructurings ("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, 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 Three Months Ended September 30, 2014 Commercial Investor Real Estate Consumer Total (In millions) Allowance for loan losses, July 1, 2014 $ 705 $ 190 $ 334 $ 1,229 Provision (credit) for loan losses 18 (23 ) 29 24 Loan losses: Charge-offs (49 ) (5 ) (66 ) (120 ) Recoveries 21 6 18 45 Net loan losses (28 ) 1 (48 ) (75 ) Allowance for loan losses, September 30, 2014 695 168 315 1,178 Reserve for unfunded credit commitments, July 1, 2014 74 12 3 89 Provision (credit) for unfunded credit losses (21 ) (3 ) — (24 ) Reserve for unfunded credit commitments, September 30, 2014 53 9 3 65 Allowance for credit losses, September 30, 2014 $ 748 $ 177 $ 318 $ 1,243 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 Nine Months Ended September 30, 2014 Commercial Investor Real Estate Consumer Total (In millions) Allowance for loan losses, January 1, 2014 $ 711 $ 236 $ 394 $ 1,341 Provision (credit) for loan losses 62 (68 ) 67 61 Loan losses: Charge-offs (130 ) (21 ) (203 ) (354 ) Recoveries 52 21 57 130 Net loan losses (78 ) — (146 ) (224 ) Allowance for loan losses, September 30, 2014 695 168 315 1,178 Reserve for unfunded credit commitments, January 1, 2014 63 12 3 78 Provision (credit) for unfunded credit losses (10 ) (3 ) — (13 ) Reserve for unfunded credit commitments, September 30, 2014 53 9 3 65 Allowance for credit losses, September 30, 2014 $ 748 $ 177 $ 318 $ 1,243 Portion of ending allowance for loan losses: Individually evaluated for impairment $ 204 $ 80 $ 79 $ 363 Collectively evaluated for impairment 491 88 236 815 Total allowance for loan losses $ 695 $ 168 $ 315 $ 1,178 Portion of loan portfolio ending balance: Individually evaluated for impairment $ 758 $ 466 $ 849 $ 2,073 Collectively evaluated for impairment 40,115 6,352 28,067 74,534 Total loans evaluated for impairment $ 40,873 $ 6,818 $ 28,916 $ 76,607 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. 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, 2015 and December 31, 2014 . 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 which 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 which 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, 2015 Pass Special Mention Substandard Accrual Non-accrual Total (In millions) Commercial and industrial $ 33,972 $ 878 $ 706 $ 350 $ 35,906 Commercial real estate mortgage—owner-occupied 6,872 347 289 233 7,741 Commercial real estate construction—owner-occupied 369 21 13 3 406 Total commercial $ 41,213 $ 1,246 $ 1,008 $ 586 $ 44,053 Commercial investor real estate mortgage $ 4,020 $ 158 $ 169 $ 39 $ 4,386 Commercial investor real estate construction 2,477 12 35 1 2,525 Total investor real estate $ 6,497 $ 170 $ 204 $ 40 $ 6,911 Accrual Non-accrual Total (In millions) Residential first mortgage $ 12,663 $ 67 $ 12,730 Home equity 10,851 96 10,947 Indirect—vehicles 3,895 — 3,895 Indirect—other consumer 490 — 490 Consumer credit card 1,016 — 1,016 Other consumer 1,021 — 1,021 Total consumer $ 29,936 $ 163 $ 30,099 $ 81,063 December 31, 2014 Pass Special Mention Substandard Accrual Non-accrual Total (In millions) Commercial and industrial $ 31,492 $ 626 $ 362 $ 252 $ 32,732 Commercial real estate mortgage—owner-occupied 7,425 315 285 238 8,263 Commercial real estate construction—owner-occupied 387 9 8 3 407 Total commercial $ 39,304 $ 950 $ 655 $ 493 $ 41,402 Commercial investor real estate mortgage $ 4,152 $ 234 $ 171 $ 123 $ 4,680 Commercial investor real estate construction 2,060 22 49 2 2,133 Total investor real estate $ 6,212 $ 256 $ 220 $ 125 $ 6,813 Accrual Non-accrual Total (In millions) Residential first mortgage $ 12,206 $ 109 $ 12,315 Home equity 10,830 102 10,932 Indirect—vehicles 3,642 — 3,642 Indirect—other consumer 206 — 206 Consumer credit card 1,009 — 1,009 Other consumer 988 — 988 Total consumer $ 28,881 $ 211 $ 29,092 $ 77,307 AGING ANALYSIS The following tables include an aging analysis of days past due (DPD) for each portfolio segment and class as of September 30, 2015 and December 31, 2014 : September 30, 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 $ 5 $ 7 $ 23 $ 35,556 $ 350 $ 35,906 Commercial real estate mortgage—owner-occupied 28 13 6 47 7,508 233 7,741 Commercial real estate construction—owner-occupied 1 — — 1 403 3 406 Total commercial 40 18 13 71 43,467 586 44,053 Commercial investor real estate mortgage 18 6 2 26 4,347 39 4,386 Commercial investor real estate construction 1 — — 1 2,524 1 2,525 Total investor real estate 19 6 2 27 6,871 40 6,911 Residential first mortgage 91 48 231 370 12,663 67 12,730 Home equity 67 31 51 149 10,851 96 10,947 Indirect—vehicles 40 12 8 60 3,895 — 3,895 Indirect—other consumer 1 1 — 2 490 — 490 Consumer credit card 6 5 11 22 1,016 — 1,016 Other consumer 12 2 4 18 1,021 — 1,021 Total consumer 217 99 305 621 29,936 163 30,099 $ 276 $ 123 $ 320 $ 719 $ 80,274 $ 789 $ 81,063 December 31, 2014 Accrual Loans 30-59 DPD 60-89 DPD 90+ DPD Total 30+ DPD Total Accrual Non-accrual Total (In millions) Commercial and industrial $ 16 $ 7 $ 7 $ 30 $ 32,480 $ 252 $ 32,732 Commercial real estate mortgage—owner-occupied 21 13 5 39 8,025 238 8,263 Commercial real estate construction—owner-occupied 1 — — 1 404 3 407 Total commercial 38 20 12 70 40,909 493 41,402 Commercial investor real estate mortgage 17 3 3 23 4,557 123 4,680 Commercial investor real estate construction — — — — 2,131 2 2,133 Total investor real estate 17 3 3 23 6,688 125 6,813 Residential first mortgage 99 64 247 410 12,206 109 12,315 Home equity 73 38 63 174 10,830 102 10,932 Indirect—vehicles 43 10 7 60 3,642 — 3,642 Indirect—other consumer — — — — 206 — 206 Consumer credit card 8 5 12 25 1,009 — 1,009 Other consumer 13 4 3 20 988 — 988 Total consumer 236 121 332 689 28,881 211 29,092 $ 291 $ 144 $ 347 $ 782 $ 76,478 $ 829 $ 77,307 IMPAIRED LOANS The following tables present details related to the Company’s impaired loans as of September 30, 2015 and December 31, 2014 . Loans deemed to be impaired include all TDRs and all non-accrual commercial and investor real estate loans, excluding leases. Loans which have been fully charged-off do not appear in the tables below. Non-accrual Impaired Loans As of September 30, 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 $ 380 $ 31 $ 349 $ 42 $ 307 $ 104 35.5 % Commercial real estate mortgage—owner-occupied 252 19 233 38 195 60 31.3 Commercial real estate construction—owner-occupied 3 — 3 — 3 1 33.3 Total commercial 635 50 585 80 505 165 33.9 Commercial investor real estate mortgage 47 8 39 16 23 10 38.3 Commercial investor real estate construction 1 — 1 — 1 — — Total investor real estate 48 8 40 16 24 10 37.5 Residential first mortgage 55 18 37 — 37 5 41.8 Home equity 21 6 15 — 15 — 28.6 Total consumer 76 24 52 — 52 5 38.2 $ 759 $ 82 $ 677 $ 96 $ 581 $ 180 34.5 % Accruing Impaired Loans As of September 30, 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 $ 66 $ 2 $ 64 $ 12 21.2 % Commercial real estate mortgage—owner-occupied 100 6 94 10 16.0 Commercial real estate construction—owner-occupied 1 — 1 — — Total commercial 167 8 159 22 18.0 Commercial investor real estate mortgage 157 8 149 16 15.3 Commercial investor real estate construction 4 1 3 1 50.0 Total investor real estate 161 9 152 17 16.1 Residential first mortgage 456 12 444 57 15.1 Home equity 341 7 334 8 4.4 Indirect—vehicles 1 — 1 — — Consumer credit card 2 — 2 — — Other consumer 13 — 13 — — Total consumer 813 19 794 65 10.3 $ 1,141 $ 36 $ 1,105 $ 104 12.3 % Total Impaired Loans As of September 30, 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 $ 446 $ 33 $ 413 $ 42 $ 371 $ 116 33.4 % Commercial real estate mortgage—owner-occupied 352 25 327 38 289 70 27.0 Commercial real estate construction—owner-occupied 4 — 4 — 4 1 25.0 Total commercial 802 58 744 80 664 187 30.5 Commercial investor real estate mortgage 204 16 188 16 172 26 20.6 Commercial investor real estate construction 5 1 4 — 4 1 40.0 Total investor real estate 209 17 192 16 176 27 21.1 Residential first mortgage 511 30 481 — 481 62 18.0 Home equity 362 13 349 — 349 8 5.8 Indirect—vehicles 1 — 1 — 1 — — Consumer credit card 2 — 2 — 2 — — Other consumer 13 — 13 — 13 — — Total consumer 889 43 846 — 846 70 12.7 $ 1,900 $ 118 $ 1,782 $ 96 $ 1,686 $ 284 21.2 % Non-accrual Impaired Loans As of December 31, 2014 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 $ 286 $ 36 $ 250 $ 11 $ 239 $ 83 41.6 % Commercial real estate mortgage—owner-occupied 267 29 238 43 195 69 36.7 Commercial real estate construction—owner-occupied 3 — 3 — 3 1 33.3 Total commercial 556 65 491 54 437 153 39.2 Commercial investor real estate mortgage 162 39 123 26 97 30 42.6 Commercial investor real estate construction 3 1 2 — 2 1 66.7 Total investor real estate 165 40 125 26 99 31 43.0 Residential first mortgage 79 26 53 — 53 7 41.8 Home equity 22 7 15 — 15 1 36.4 Total consumer 101 33 68 — 68 8 40.6 $ 822 $ 138 $ 684 $ 80 $ 604 $ 192 40.1 % Accruing Impaired Loans As of December 31, 2014 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 $ 102 $ 3 $ 99 $ 17 19.6 % Commercial real estate mortgage—owner-occupied 162 10 152 16 16.0 Total commercial 264 13 251 33 17.4 Commercial investor real estate mortgage 267 8 259 28 13.5 Commercial investor real estate construction 33 — 33 6 18.2 Total investor real estate 300 8 292 34 14.0 Residential first mortgage 426 11 415 57 16.0 Home equity 359 6 353 13 5.3 Indirect—vehicles 1 — 1 — — Consumer credit card 2 — 2 — — Other consumer 17 — 17 — — Total consumer 805 17 788 70 10.8 $ 1,369 $ 38 $ 1,331 $ 137 12.8 % Total Impaired Loans As of December 31, 2014 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 $ 388 $ 39 $ 349 $ 11 $ 338 $ 100 35.8 % Commercial real estate mortgage—owner-occupied 429 39 390 43 347 85 28.9 Commercial real estate construction—owner-occupied 3 — 3 — 3 1 33.3 Total commercial 820 78 742 54 688 186 32.2 Commercial investor real estate mortgage 429 47 382 26 356 58 24.5 Commercial investor real estate construction 36 1 35 — 35 7 22.2 Total investor real estate 465 48 417 26 391 65 24.3 Residential first mortgage 505 37 468 — 468 64 20.0 Home equity 381 13 368 — 368 14 7.1 Indirect—vehicles 1 — 1 — 1 — — Consumer credit card 2 — 2 — 2 — — Other consumer 17 — 17 — 17 — — Total consumer 906 50 856 — 856 78 14.1 $ 2,191 $ 176 $ 2,015 $ 80 $ 1,935 $ 329 23.0 % ________ (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, 2015 and 2014 . 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 2015 2014 2015 2014 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 $ 379 $ 1 $ 296 $ 2 $ 378 $ 4 $ 382 $ 7 Commercial real estate mortgage—owner-occupied 322 2 464 2 350 7 491 9 Commercial real estate construction—owner-occupied 4 — 30 1 4 — 36 1 Total commercial 705 3 790 5 732 11 909 17 Commercial investor real estate mortgage 210 2 446 4 266 8 532 18 Commercial investor real estate construction 14 — 44 — 26 1 68 2 Total investor real estate 224 2 490 4 292 9 600 20 Residential first mortgage 477 3 451 3 476 11 454 10 Home equity 352 5 379 5 357 14 383 15 Indirect—vehicles 1 — 1 — 1 — 1 — Consumer credit card 2 — 2 — 2 — 2 — Other consumer 13 1 19 — 15 1 22 1 Total consumer 845 9 852 8 851 26 862 26 Total impaired loans $ 1,774 $ 14 $ 2,132 $ 17 $ 1,875 $ 46 $ 2,371 $ 63 TROUBLED DEBT RESTRUCTURINGS Regions regularly modifies commercial and investor real estate loans in order to facilitate a workout strategy. Typical modifications include accommodations, such as renewals and forbearances. The majority of Regions’ commercial and investor real estate TDRs are the result of renewals of classified loans at an interest rate that is not considered to be a market interest rate. For smaller dollar commercial loans, Regions may periodically grant interest rate and other term concessions, similar to those under the consumer program described below. Regions works to meet the individual needs of consumer borrowers to stem foreclosure through the Customer Assistance Program ("CAP"). Regions designed the program to allow for customer-tailored modifications with the goal of keeping customers in their homes and avoiding foreclosure where possible. Modification may be offered to any borrower experiencing financial hardship regardless of the borrower’s payment status. Consumer TDRs primarily involve an interest rate concession; however under the CAP, Regions may also offer a short-term deferral, a term extension, a new loan product, or a combination of these options. For loans restructured under the CAP, Regions expects to collect the original contractually due principal. The gross original contractual interest may be collectible, depending on the terms modified. The length of the CAP modifications ranges from temporary payment deferrals of three months to term extensions for the life of the loan. All such modifications are considered TDRs regardless of the term because they are concessionary in nature and because the customer documents a hardship in order to participate. As noted above, the majority of Regions’ TDRs are the result of interest rate concession and not a forgiveness of principal. Accordingly, the financial impact of the modifications is best illustrated by the impact to the allowance calculation at the loan or pool level, as a result of the loans being considered impaired due to their TDR status. Regions most often does not record a charge-off at the modification date. None of the modified consumer loans listed in the following TDR disclosures were collateral-dependent at the time of modification. At September 30, 2015 , approximately $44 million in residential first mortgage TDRs were in excess of 180 days past due and were considered collateral-dependent. At September 30, 2015 , approximately $7 million in home equity first lien TDRs were in excess of 180 days past due and approximately $5 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 in the consolidated financial statements included in the Annual Report on Form 10-K for the year ended December 31, 2014. 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. The end of period balance, for the period in which it was added, of total loans first reported as new TDRs totaled approximately $217 million and $316 million for the nine months ended September 30, 2015 and 2014 , respectively. 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 Three Months Ended September 30, 2014 Financial Impact of Modifications Considered TDRs Number of Obligors Recorded Investment Increase in Allowance at Modification (Dollars in millions) Commercial and industrial 67 $ 72 $ 2 Commercial real estate mortgage—owner-occupied 61 49 1 Total commercial 128 121 3 Commercial investor real estate mortgage 43 66 1 Commercial investor real estate construction 8 24 1 Total investor real estate 51 90 2 Residential first mortgage 144 26 4 Home equity 142 8 — Consumer credit card 40 1 — Indirect—vehicles and other consumer 77 1 — Total consumer 403 36 4 582 $ 247 $ 9 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 Nine Months Ended September 30, 2014 Financial Impact Number of Recorded Increase in (Dollars in millions) Commercial and industrial 216 $ 236 $ 4 Commercial real estate mortgage—owner-occupied 218 196 4 Commercial real estate construction—owner-occupied 3 3 — Total commercial 437 435 8 Commercial investor real estate mortgage 193 274 5 Commercial investor real estate construction 36 39 1 Total investor real estate 229 313 6 Residential first mortgage 408 71 11 Home equity 481 28 — Consumer credit card 104 1 — Indirect—vehicles and other consumer 194 3 — Total consumer 1,187 103 11 1,853 $ 851 $ 25 Defaulted TDRs The following table presents, by portfolio segment and class, TDRs that defaulted during the three and nine months ended September 30, 2015 and 2014 , 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, 2014 . Three Months Ended September 30 Nine Months Ended September 30 2015 2014 2015 2014 (In millions) Defaulted During the Period, Where Modified in a TDR Twelve Months Prior to Default Commercial and industrial $ 4 $ 2 $ 8 $ 48 Commercial real estate mortgage—owner-occupied 3 10 6 17 Total commercial 7 12 14 65 Commercial investor real estate mortgage — 1 1 5 Commercial investor real estate construction — — — 1 Total investor real estate — 1 1 6 Residential first mortgage 7 2 15 14 Home equity 1 — 2 2 Total consumer 8 2 17 16 $ 15 $ 15 $ 32 $ 87 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, 2015 , approximately $30 million of commercial and investor real estate loans modified in a TDR during the three months ended September 30, 2015 were on non-accrual status. Approximately 1.63 percent of this amount was 90 days past due. At September 30, 2015 , Regions had restructured binding unfunded commitments totaling $71 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, 2015
Transfers and Servicing of Financial Assets [Abstract]
Servicing of Financial Assets	SERVICING OF FINANCIAL ASSETS RESIDENTIAL MORTGAGE BANKING ACTIVITIES The fair value of residential mortgage servicing rights 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 mortgage servicing rights. The Company compares fair value estimates and assumptions to observable market data when available, and also considers recent market activity and actual portfolio experience. The table below presents an analysis of residential mortgage servicing rights under the fair value measurement method: Three Months Ended September 30 Nine Months Ended September 30 2015 2014 2015 2014 (In millions) Carrying value, beginning of period $ 268 $ 276 $ 257 $ 297 Additions 9 9 28 24 Increase (decrease) in fair value (1) : Due to change in valuation inputs or assumptions (25 ) — (14 ) (20 ) Economic amortization associated with borrower repayments (11 ) (8 ) (30 ) (24 ) Carrying value, end of period $ 241 $ 277 $ 241 $ 277 ________ (1) "Economic amortization associated with borrower repayments" includes both total loan payoffs as well as partial paydowns. Prior to the fourth quarter of 2014, this line item reflected total loan payoffs only, while partial paydowns were included in the "Due to change in valuation inputs or assumptions" line item. The 2014 three and nine months ended amount disclosed in the table has been reclassified to reflect the revised presentation. 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 (excluding related derivative instruments) are as follows: September 30 2015 2014 (Dollars in millions) Unpaid principal balance $ 26,220 $ 26,943 Weighted-average prepayment speed (CPR; percentage) 12.0 % 10.9 % Estimated impact on fair value of a 10% increase $ (13 ) $ (15 ) Estimated impact on fair value of a 20% increase $ (25 ) $ (28 ) Option-adjusted spread (basis points) 999 789 Estimated impact on fair value of a 10% increase $ (9 ) $ (8 ) Estimated impact on fair value of a 20% increase $ (18 ) $ (17 ) Weighted-average coupon interest rate 4.4 % 4.5 % Weighted-average remaining maturity (months) 279 279 Weighted-average servicing fee (basis points) 27.9 27.8 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 the residential mortgage servicing rights 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 2015 2014 2015 2014 (In millions) Servicing related fees and other ancillary income $ 21 $ 21 $ 62 $ 64 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 a 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. The table below presents an analysis of Regions’ repurchase liability related to residential mortgage loans sold with representations and warranty provisions: Three Months Ended September 30 Nine Months Ended September 30 2015 2014 2015 2014 (In millions) Beginning balance $ 20 $ 34 $ 26 $ 39 Additions (reductions), net (6 ) (5 ) (10 ) (3 ) Losses — (1 ) (2 ) (8 ) Ending balance $ 14 $ 28 $ 14 $ 28 COMMERCIAL MORTGAGE BANKING ACTIVITIES On July 18, 2014, Regions was approved as a Fannie Mae Delegated Underwriting and Servicing ("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 mortgage servicing rights accounted for under the amortization method and $15 million in intangible assets associated with the DUS license purchased. Regions also assumed a one-third 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 2014 Annual Report on Form 10-K for additional information. As of September 30, 2015 , the DUS servicing portfolio remained at approximately $1.0 billion , the related commercial mortgage servicing rights were valued at approximately $13 million due to new loan originations, and the loss share guarantee was valued at approximately $2 million .

Goodwill

Goodwill	9 Months Ended
	Sep. 30, 2015
Goodwill and Intangible Assets Disclosure [Abstract]
Goodwill	GOODWILL Goodwill allocated to each reportable segment (each a reporting unit) is presented as follows: September 30, 2015 December 31, 2014 (In millions) Corporate Bank $ 2,258 $ 2,258 Consumer Bank 2,095 2,095 Wealth Management 478 463 $ 4,831 $ 4,816 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 in the Annual Report on Form 10-K for the year ended December 31, 2014. 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 2015, Regions assessed events and circumstances for all three reporting units as of September 30, 2015 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. Results of the 2014 annual test indicated that the estimated fair value of each reporting unit exceeded its carrying amount 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 values as of September 30, 2015 . Therefore, Regions determined that a test of goodwill impairment was not required for each of Regions’ reporting units for the September 30, 2015 interim period.

Stockholders' Equity and Accumu

Stockholders' Equity and Accumulated Other Comprehensive Income (Loss)	9 Months Ended
	Sep. 30, 2015
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, 2015 December 31, 2014 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 $ 395 $ 419 Series B 4/29/2014 9/15/2024 6.375 % (1) 500 441 465 $ 1,000 $ 836 $ 884 _________ (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 the first, second, and third quarters of 2015 and 2014. Series B Preferred Stock dividends were $8 million for the first, second, and third quarters of 2015 compared to $12 million in the third quarter of 2014. Due to the timing of the second quarter of 2014 Series B preferred issuance, preferred dividends in the third quarter of 2014 reflected a longer coupon period. Because the Company was in a retained deficit position, preferred dividends were recorded as a reduction of preferred stock, including related surplus. COMMON STOCK During the first quarter of 2015, Regions received no objection from the Federal Reserve to its 2015 capital plan that was submitted as part of the Comprehensive Capital Analysis and Review ("CCAR") process. On April 23, 2015, Regions' Board of Directors approved an increase of its quarterly common stock dividend to $0.06 per share effective with the quarterly dividend paid in July 2015, as well as the authorization of a new $875 million common stock repurchase plan, permitting repurchases from the beginning of the second quarter of 2015 through the end of the second quarter of 2016. Through September 30, 2015, Regions repurchased approximately 44 million shares of common stock at a total cost of approximately $442 million under this plan. The Company continued to repurchase shares in the fourth quarter of 2015, and as of November 3, 2015, Regions had additional repurchases of approximately 1.4 million shares of common stock at a total cost of approximately $13.6 million . All common shares repurchased under this plan were immediately retired and therefore are not included in treasury stock. As part of its 2014 CCAR submission, Regions' Board of Directors approved an increase to its quarterly common stock dividend from $0.03 per share to $0.05 per share effective with the quarterly dividend paid in July 2014, as well as a $350 million common stock repurchase plan. The Company closed out this repurchase plan in the first quarter of 2015, repurchasing an additional approximately 11 million shares of common stock at a total cost of approximately $102 million . These shares were immediately retired and therefore are not included in treasury stock. The Board of Directors declared a $0.06 per share cash dividend on common stock for the second and third quarter s 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. The Board of Directors declared a $0.05 per share cash dividend on common stock for the second and third quarter s of 2014, and a $0.03 per share cash dividend for the first quarter of 2014, totaling $0.13 per share cash dividend for the first nine months of 2014. ACCUMULATED OTHER COMPREHENSIVE INCOME (LOSS) Activity within the balances in accumulated other comprehensive income (loss) is shown in the following tables: 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 ) Three Months Ended September 30, 2014 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 $ (60 ) $ 203 $ 44 $ (239 ) $ (52 ) Net change 2 (92 ) (37 ) 5 (122 ) End of period $ (58 ) $ 111 $ 7 $ (234 ) $ (174 ) 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 ) Nine Months Ended September 30, 2014 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 $ (64 ) $ (22 ) $ 15 $ (248 ) $ (319 ) Net change 6 133 (8 ) 14 145 End of period $ (58 ) $ 111 $ 7 $ (234 ) $ (174 ) The following tables present amounts reclassified out of accumulated other comprehensive income (loss) for the three and nine months ended September 30, 2015 and 2014 : Three Months Ended September 30, 2015 Three Months Ended September 30, 2014 Details about Accumulated Other Comprehensive Income (Loss) Components Amount Reclassified from Accumulated Other Comprehensive Income (Loss) (1) Amount Reclassified from Accumulated Other Comprehensive Income (Loss) (1) Affected Line Item in the Consolidated Statements of Income (In millions) Unrealized losses on securities transferred to held to maturity: $ (3 ) $ (3 ) Net interest income 1 1 Tax (expense) or benefit $ (2 ) $ (2 ) Net of tax Unrealized gains and (losses) on available-for-sale securities: $ 7 $ 7 Securities gains, net (2 ) (2 ) Tax (expense) or benefit $ 5 $ 5 Net of tax Gains and (losses) on cash flow hedges: Interest rate contracts $ 41 $ 34 Net interest income (16 ) (13 ) Tax (expense) or benefit $ 25 $ 21 Net of tax Amortization of defined benefit pension plans and other post employment benefits: Prior-service cost $ (1 ) $ — (2) Actuarial gains (losses) (12 ) (7 ) (2) (13 ) (7 ) Total before tax 4 2 Tax (expense) or benefit $ (9 ) $ (5 ) Net of tax Total reclassifications for the period $ 19 $ 19 Net of tax Nine Months Ended September 30, 2015 Nine Months Ended September 30, 2014 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: $ (10 ) $ (10 ) Net interest income 4 4 Tax (expense) or benefit $ (6 ) $ (6 ) Net of tax Unrealized gains and (losses) on available-for-sale securities: $ 18 $ 15 Securities gains, net (6 ) (5 ) Tax (expense) or benefit $ 12 $ 10 Net of tax Gains and (losses) on cash flow hedges: Interest rate contracts $ 108 $ 91 Net interest income (41 ) (35 ) Tax (expense) or benefit $ 67 $ 56 Net of tax Amortization of defined benefit pension plans and other post employment benefits: Prior-service cost $ (1 ) $ (1 ) (2) Actuarial gains (losses) (36 ) (18 ) (2) (37 ) (19 ) Total before tax 13 6 Tax (expense) or benefit $ (24 ) $ (13 ) Net of tax Total reclassifications for the period $ 49 $ 47 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, 2015
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 2015 2014 2015 2014 (In millions, except per share amounts) Numerator: Income from continuing operations $ 262 $ 317 $ 787 $ 915 Preferred stock dividends (16 ) (20 ) (48 ) (36 ) Income from continuing operations available to common shareholders 246 297 739 879 Income (loss) from discontinued operations, net of tax (4 ) 3 (10 ) 16 Net income available to common shareholders $ 242 $ 300 $ 729 $ 895 Denominator: Weighted-average common shares outstanding—basic 1,319 1,378 1,333 1,378 Potential common shares 7 11 10 12 Weighted-average common shares outstanding—diluted 1,326 1,389 1,343 1,390 Earnings per common share from continuing operations available to common shareholders (1) : Basic $ 0.19 $ 0.22 $ 0.55 $ 0.64 Diluted 0.19 0.21 0.55 0.63 Earnings (loss) per common share from discontinued operations (1) : Basic (0.00 ) 0.00 (0.01 ) 0.01 Diluted (0.00 ) 0.00 (0.01 ) 0.01 Earnings per common share (1) : Basic 0.18 0.22 0.55 0.65 Diluted 0.18 0.22 0.54 0.64 ________ (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 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. The effect from the assumed exercise of 23 million and 24 million stock options for the three and nine months ended September 30, 2014 , 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.

Share-Based Payments

Share-Based Payments	9 Months Ended
	Sep. 30, 2015
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 of Directors; 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 Long Term Incentive Plan ("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 of Directors, grants of restricted stock, restricted stock units, and performance stock units accrue dividends, or their notional equivalent, as they are declared by the Board of Directors, 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 54 million at September 30, 2015 . STOCK OPTIONS The following table summarizes the activity related to stock options: Nine Months Ended September 30 2015 2014 Number of Options Weighted-Average Exercise Price Number of Options Weighted-Average Exercise Price Outstanding at beginning of period 25,316,676 $ 23.07 32,127,235 $ 22.81 Exercised (535,107 ) 6.92 (2,166,521 ) 4.52 Canceled/Forfeited (5,410,769 ) 31.82 (4,486,405 ) 30.44 Outstanding at end of period 19,370,800 $ 21.07 25,474,309 $ 23.02 Exercisable at end of period 19,370,800 $ 21.07 25,474,309 $ 23.02 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 2015 2014 Number of Shares Weighted-Average Grant Date Fair Value Number of Shares Weighted-Average Non-vested at beginning of period 18,427,409 $ 8.07 16,212,198 $ 6.83 Granted 6,622,682 9.90 5,368,113 11.22 Vested (8,106,010 ) 6.07 (2,623,699 ) 6.82 Forfeited (506,271 ) 8.54 (459,102 ) 8.06 Non-vested at end of period 16,437,810 $ 9.51 18,497,510 $ 8.07

Pension and Other Postretiremen

Pension and Other Postretirement Benefits	9 Months Ended
	Sep. 30, 2015
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 supplemental executive retirement program (the "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 2015 2014 2015 2014 2015 2014 (In millions) Service cost $ 10 $ 9 $ 1 $ 1 $ 11 $ 10 Interest cost 21 21 2 2 23 23 Expected return on plan assets (38 ) (34 ) — — (38 ) (34 ) Amortization of actuarial loss 11 6 1 1 12 7 Amortization of prior service cost — — 1 — 1 — Settlement charge — — — — — — Net periodic pension cost $ 4 $ 2 $ 5 $ 4 $ 9 $ 6 Qualified Plan Non-qualified Plans Total Nine Months Ended September 30 2015 2014 2015 2014 2015 2014 (In millions) Service cost $ 30 $ 25 $ 4 $ 3 $ 34 $ 28 Interest cost 63 65 5 5 68 70 Expected return on plan assets (112 ) (103 ) — — (112 ) (103 ) Amortization of actuarial loss 33 16 3 2 36 18 Amortization of prior service cost — — 1 1 1 1 Settlement charge — — — 3 — 3 Net periodic pension cost $ 14 $ 3 $ 13 $ 14 $ 27 $ 17 Regions' policy for funding the qualified pension plan is to contribute annually at least the amount required by Internal Revenue Service ("IRS") minimum funding standards. Regions made a contribution of $150 million for the 2014 plan year during the first quarter of 2015. Regions also made a $100 million contribution for the 2015 plan year in the fourth quarter of 2015. 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, 2015 or 2014 .

Income Taxes

Income Taxes	9 Months Ended
	Sep. 30, 2015
Income Tax Disclosure [Abstract]
Income Tax	INCOME TAXES During the second quarter of 2015, the Company reached an agreement with the IRS to settle audits for the tax years 2010, 2011 and 2012. The settlement reduced income tax expense by $4 million , including a reduction in unrecognized tax benefits ("UTBs") of $3 million . The Company has entered the IRS’s Compliance Assurance Process program for 2015. State audit settlements during the nine months ended September 30, 2015 resulted in a reduction in income tax expense of $6 million . With few exceptions, the Company is no longer subject to state and local tax examinations for tax years before 2008. Currently there are disputed tax positions taken in previously filed tax returns with certain states. The Company continues to evaluate these positions and intends to defend proposed adjustments made by these tax authorities. The Company does not anticipate the ultimate resolution of these examinations will result in a material change to its business, financial position, results of operations or cash flows. As of September 30, 2015 and December 31, 2014, the balance in the Company’s UTBs was $37 million and $50 million , respectively. The decrease of $13 million is principally related to state audit settlements and the IRS audit previously discussed. As of September 30, 2015 and December 31, 2014, the balance of UTBs that would reduce the effective tax rate, if recognized, was $24 million and $34 million , respectively.

Derivative Financial Instrument

Derivative Financial Instruments and Hedging Activities	9 Months Ended
	Sep. 30, 2015
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, 2015 and December 31, 2014 . September 30, 2015 December 31, 2014 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 $ 2,650 $ 21 $ 37 $ 2,817 $ 6 $ 30 Derivatives in cash flow hedging relationships: Interest rate swaps 9,800 199 — 8,050 38 31 Total derivatives designated as hedging instruments $ 12,450 $ 220 $ 37 $ 10,867 $ 44 $ 61 Derivatives not designated as hedging instruments: Interest rate swaps $ 39,976 $ 645 $ 668 $ 45,860 $ 941 $ 972 Interest rate options 2,954 15 1 3,016 10 2 Interest rate futures and forward commitments 18,801 10 14 17,978 3 8 Other contracts 4,713 189 183 4,149 217 211 Total derivatives not designated as hedging instruments $ 66,444 $ 859 $ 866 $ 71,003 $ 1,171 $ 1,193 Total derivatives $ 78,894 $ 1,079 $ 903 $ 81,870 $ 1,215 $ 1,254 _________ (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, 2014 for additional information regarding accounting policies for derivatives. FAIR VALUE HEDGES Fair value hedge relationships mitigate exposure to the change in fair value of an asset, liability or firm commitment. Regions enters into interest rate swap agreements to manage interest rate exposure on the Company’s fixed-rate borrowings, which includes long-term debt and certificates of deposit. These agreements involve the receipt of fixed-rate amounts in exchange for floating-rate interest payments over the life of the agreements. Regions enters into interest rate swap agreements to manage interest rate exposure on certain of the Company's fixed-rate available for sale debt securities. These agreements involve the payment of fixed-rate amounts in exchange for floating-rate interest receipts. CASH FLOW HEDGES Cash flow hedge relationships mitigate exposure to the variability of future cash flows or other forecasted transactions. Regions enters into interest rate swap agreements to manage overall cash flow changes related to interest rate risk exposure on LIBOR-based loans. The agreements effectively modify the Company’s exposure to interest rate risk by utilizing receive fixed/pay LIBOR interest rate swaps. Regions 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 $24 million and $40 million in accumulated other comprehensive income (loss) at September 30, 2015 and 2014 , respectively, related to terminated cash flow hedges of loan and debt instruments, which will be amortized into earnings in conjunction with the recognition of interest payments through 2021. Regions recognized pre-tax income of $11 million and $14 million during the three months ended September 30, 2015 and 2014 , respectively, and pre-tax income of $33 million and $37 million during the nine months ended September 30, 2015 and 2014 , respectively, related to the amortization of cash flow hedges of loan and debt instruments. Regions expects to reclassify out of accumulated other comprehensive income (loss) and into earnings approximately $146 million in pre-tax income due to the receipt of interest payments on all cash flow hedges within the next twelve months. Included in this amount is $26 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 ten years as of September 30, 2015 . 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 2015 2014 2015 2014 (In millions) (In millions) Fair Value Hedges: Interest rate swaps on: Debt/CDs $ 5 $ 4 Interest expense $ (1 ) $ 7 Debt/CDs 10 (11 ) Other non-interest expense (11 ) 10 Securities available for sale (3 ) (4 ) Interest income — — Securities available for sale (23 ) — Other non-interest expense 21 (2 ) Total $ (11 ) $ (11 ) $ 9 $ 15 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 2015 2014 2015 2014 (In millions) (In millions) Cash Flow Hedges: Interest rate swaps $ 96 $ (37 ) Interest income on loans $ 41 $ 34 Forward starting swaps — — Interest expense on debt — — Total $ 96 $ (37 ) $ 41 $ 34 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 2015 2014 2015 2014 (In millions) (In millions) Fair Value Hedges: Interest rate swaps on: Debt/CDs $ 13 $ 19 Interest expense $ 5 $ 15 Debt/CDs 14 (25 ) Other non-interest expense (15 ) 27 Securities available for sale (11 ) (12 ) Interest income — — Securities available for sale (18 ) (32 ) Other non-interest expense 15 25 Total $ (2 ) $ (50 ) $ 5 $ 67 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 2015 2014 2015 2014 (In millions) (In millions) Cash Flow Hedges: Interest rate swaps $ 108 $ (11 ) Interest income on loans $ 108 $ 96 Forward starting swaps — 3 Interest expense on debt — (5 ) Total $ 108 $ (8 ) $ 108 $ 91 ______ (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 maintains a derivatives portfolio of interest rate swaps, option contracts, and futures and forward commitments used to meet the needs of its customers. The portfolio is primarily used to help clients manage market risk. The Company is subject to the credit risk that a counterparty will fail to perform. The Company is also subject to market risk, which is evaluated by the Company and monitored by the asset/liability management process. Separate derivative contracts are entered into to reduce overall market exposure to pre-defined limits. The contracts in this portfolio do not qualify for hedge accounting and are marked-to-market through earnings and included in other assets and other liabilities. 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, 2015 and December 31, 2014 , Regions had $353 million and $233 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 the lower of cost or market with changes to the value of the related forward sale commitments recorded in capital markets fee income and other. At September 30, 2015 and December 31, 2014 , Regions had $708 million and $621 million , respectively, in total notional amount related to these forward sale commitments. Regions has elected to account for residential mortgage servicing rights at fair market 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 consolidated statement of income effect of changes in the fair value of its residential mortgage servicing rights. As of September 30, 2015 and December 31, 2014 , the total notional amount related to these contracts was $3.5 billion and $3.7 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, 2015 and 2014 : Three Months Ended September 30 Nine Months Ended September 30 Derivatives Not Designated as Hedging Instruments 2015 2014 2015 2014 (In millions) Capital markets fee income and other (1) : Interest rate swaps $ 3 $ 5 $ 11 $ 10 Interest rate options 5 — 9 — Interest rate futures and forward commitments 1 1 — — Other contracts 8 2 1 8 Total capital markets fee income and other 17 8 21 18 Mortgage income: Interest rate swaps 22 1 19 19 Interest rate options — (3 ) 4 3 Interest rate futures and forward commitments (8 ) 9 (1 ) 1 Total mortgage income 14 7 22 23 $ 31 $ 15 $ 43 $ 41 ______ (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, 2015 and December 31, 2014 , totaled approximately $585 million and $392 million , respectively. This amount represents 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 when 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 2020. 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 when 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, 2015 was approximately $114 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, 2015 and 2014 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. 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 value of all derivative instruments with any credit-risk-related contingent features that were in a liability position on September 30, 2015 and December 31, 2014 , was $221 million and $272 million , respectively, for which Regions had posted collateral of $219 million and $272 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, 2015 and December 31, 2014 . Offsetting Derivative Assets Offsetting Derivative Liabilities September 30, 2015 December 31, 2014 September 30, 2015 December 31, 2014 (In millions) Gross amounts subject to offsetting $ 905 $ 1,157 $ 778 $ 1,195 Gross amounts not subject to offsetting 174 58 125 59 Gross amounts recognized 1,079 1,215 903 1,254 Gross amounts offset in the consolidated balance sheets (1) 489 815 637 1,054 Net amounts presented in the consolidated balance sheets 590 400 266 200 Gross amounts not offset in the consolidated balance sheets: Financial instruments 5 8 50 — Cash collateral received/posted — — 42 29 Net amounts $ 585 $ 392 $ 174 $ 171 ________ (1) At September 30, 2015 , gross amounts of derivative assets and liabilities offset in the consolidated balance sheets presented above include cash collateral received of $127 million and cash collateral posted of $278 million . At December 31, 2014 , gross amounts of derivative assets and liabilities offset in the consolidated balance sheets presented above include cash collateral received of $111 million and cash collateral posted of $354 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, 2015
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, 2014 for a description of valuation methodologies for assets and liabilities measured at fair value on a recurring and non-recurring basis. Assets and liabilities measured at fair value rarely transfer between Level 1 and Level 2 measurements. There were no such transfers during the nine month periods ended September 30, 2015 and 2014 . 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 security. 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, 2015 and December 31, 2014 : September 30, 2015 December 31, 2014 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 $ 106 $ — $ — $ 106 $ 106 $ — $ — $ 106 Securities available for sale: U.S. Treasury securities $ 182 $ — $ — $ 182 $ 176 $ — $ — $ 176 Federal agency securities — 226 — 226 — 235 — 235 Obligations of states and political subdivisions — 1 — 1 — 2 — 2 Mortgage-backed securities (MBS): Residential agency — 15,820 — 15,820 — 16,038 — 16,038 Residential non-agency — — 6 6 — — 8 8 Commercial agency — 2,414 — 2,414 — 1,964 — 1,964 Commercial non-agency — 1,410 — 1,410 — 1,494 — 1,494 Corporate and other debt securities — 1,759 3 1,762 — 1,987 3 1,990 Equity securities (1) 212 — — 212 146 — — 146 Total securities available for sale $ 394 $ 21,630 $ 9 $ 22,033 $ 322 $ 21,720 $ 11 $ 22,053 Mortgage loans held for sale $ — $ 421 $ — $ 421 $ — $ 440 $ — $ 440 Residential mortgage servicing rights $ — $ — $ 241 $ 241 $ — $ — $ 257 $ 257 Derivative assets: Interest rate swaps $ — $ 865 $ — $ 865 $ — $ 985 $ — $ 985 Interest rate options — 2 13 15 — 2 8 10 Interest rate futures and forward commitments — 10 — 10 — 3 — 3 Other contracts — 189 — 189 — 217 — 217 Total derivative assets $ — $ 1,066 $ 13 $ 1,079 $ — $ 1,207 $ 8 $ 1,215 Derivative liabilities: Interest rate swaps $ — $ 705 $ — $ 705 $ — $ 1,033 $ — $ 1,033 Interest rate options — 1 — 1 — 2 — 2 Interest rate futures and forward commitments — 14 — 14 — 8 — 8 Other contracts — 183 — 183 — 211 — 211 Total derivative liabilities $ — $ 903 $ — $ 903 $ — $ 1,254 $ — $ 1,254 Nonrecurring fair value measurements Loans held for sale $ — $ — $ 15 $ 15 $ — $ — $ 33 $ 33 Foreclosed property and other real estate — 36 14 50 — 41 8 49 _______ (1) Excludes Federal Reserve Bank and Federal Home Loan Bank Stock totaling $484 million and $197 million , respectively, at September 30, 2015 and $488 million and $39 million , respectively, at December 31, 2014 . 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 Asset and Liability Management Committee of the Company in a holistic approach to managing price fluctuation risks. The following tables illustrate a rollforward 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, 2015 and 2014 . 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, 2015 and 2014 are not material. Three Months Ended September 30, 2015 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 $ 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 (2) — — — — (32 ) — — $ 13 Three Months Ended September 30, 2014 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 $ 9 — — — — — — — — $ 9 Corporate and other debt securities 2 — — 1 — — — — — 3 Total securities available for sale $ 11 — — 1 — — — — — $ 12 Residential mortgage servicing rights $ 276 (8 ) (1) — 9 — — — — — $ 277 Total derivatives, net $ 12 20 (1) — — — — (23 ) — — $ 9 Nine Months Ended September 30, 2015 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 $ 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 (3) — — — — (80 ) — — $ 13 Nine Months Ended September 30, 2014 Opening Balance January 1, 2014 Total Realized / Unrealized Gains or Losses Purchases Sales Issuances Settlements Transfers into Level 3 Transfers out of Level 3 Closing Balance September 30, 2014 Included in Earnings Included in Other Compre- hensive Income (Loss) (In millions) Level 3 Instruments Only Securities available for sale: Residential non-agency MBS $ 9 — — — — — — — — $ 9 Corporate and other debt securities 2 — — 4 — — (3 ) — — 3 Total securities available for sale $ 11 — — 4 — — (3 ) — — $ 12 Residential mortgage servicing rights $ 297 (44 ) (1) — 24 — — — — — $ 277 Total derivatives, net $ 5 70 (1) — — — — (66 ) — — $ 9 _________ (1) Included in mortgage income. (2) Approximately $1 million was included in capital markets fee income and other and $31 million was included in mortgage income. (3) 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 2015 2014 2015 2014 (In millions) Loans held for sale $ (5 ) $ (11 ) $ (16 ) $ (34 ) Foreclosed property and other real estate (9 ) (4 ) (56 ) (18 ) The following tables present detailed information regarding assets and liabilities measured at fair value using significant unobservable inputs (Level 3) as of September 30, 2015 and December 31, 2014 . 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, 2015 and December 31, 2014 are included. Following the tables are a description of the valuation technique and the sensitivity of the technique to changes in the significant unobservable input. September 30, 2015 Level 3 Estimated Fair Value at September 30, 2015 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 $6 Discounted cash flow Spread to LIBOR 5.5% - 50.0% (14.7%) Weighted-average prepayment speed (CPR; percentage) 6.5% - 34.9% (13.4%) Probability of default 1.5% Loss severity 40.5% Corporate and other debt securities $3 Market comparable Evaluated quote on same issuer/comparable bond 100.0% Residential mortgage servicing rights (1) $241 Discounted cash flow Weighted-average prepayment speed (CPR; percentage) 11.4% - 12.5% (12.0%) Option-adjusted spread (percentage) 8.7% - 17.3% (10.0%) Derivative assets: Interest rate options $12 Interest rate lock commitments on the residential mortgage loans are valued using discounted cash flows Weighted-average prepayment speed (CPR; percentage) 11.4% - 12.5% (12.0%) Option-adjusted spread (percentage) 8.7% - 17.3% (10.0%) Pull-through 3.5% - 99.1% (86.8%) $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 $15 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) 12.8% - 96.2% (52.1%) Foreclosed property and other real estate $11 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% - 65.5% (44.4%) $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) 2.7% - 11.0% (8.7%) _________ (1) See Note 5 for additional disclosures related to assumptions used in the fair value calculation for residential mortgage servicing rights. December 31, 2014 Level 3 Estimated Fair Value at December 31, 2014 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 $8 Discounted cash flow Spread to LIBOR 5.4% - 49.9% (12.3%) Weighted-average prepayment speed (CPR; percentage) 6.3% - 15.0% (9.5%) Probability of default 1.4% Loss severity 37.4% Corporate and other debt securities $3 Market comparable Evaluated quote on same issuer/comparable bond 99.9% Residential mortgage servicing rights (1) $257 Discounted cash flow Weighted-average prepayment speed (CPR; percentage) 9.9% - 22.4% (12.0%) Option-adjusted spread (percentage) 7.7% - 11.3% (9.0%) Derivative assets: Interest rate options $8 Discounted cash flow Weighted-average prepayment speed (CPR; percentage) 9.9% - 22.4% (12.0%) Option-adjusted spread (percentage) 7.7% - 11.3% (9.0%) Pull-through 7.3% - 99.1% (87.8%) Nonrecurring fair value measurements: Loans held for sale $33 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) 8.3% - 90.9% (53.3%) 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) 3.7% - 73.0% (29.6%) _________ (1) See Note 7 to the consolidated financial statements of the Annual Report on Form 10-K for the year ended December 31, 2014 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 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, constant prepayment rate, probability of default, and loss severity in the event of default. Significant increases in any of these inputs in isolation would result in significantly lower fair value measurement. Generally, a change in the assumption used for the probability of default is accompanied by a directionally similar change in the assumption used for loss severity and a directionally opposite change in the assumption used for prepayment rates. 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 other debt securities. Residential mortgage servicing rights The significant unobservable inputs used in the fair value measurement of residential mortgage servicing rights ("MSR") are option-adjusted spreads (“OAS”) and prepayment speed. This method 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 rates 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 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 mortgage loans held for sale are based on traded market prices of similar assets where available and/or discounted cash flows at market interest rates, adjusted for securitization activities that include servicing values and market conditions, and are recorded in loans held for sale in the consolidated balance sheets. The following table summarizes the difference between the aggregate fair value and the aggregate unpaid principal balance for mortgage loans held for sale measured at fair value: September 30, 2015 December 31, 2014 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 $ 421 $ 401 $ 20 $ 440 $ 421 $ 19 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 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, 2015 and 2014 . 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 2015 2014 2015 2014 (In millions) Net gains (losses) resulting from changes in fair value $ 8 $ (6 ) $ — $ 11 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, 2015 are as follows: September 30, 2015 Carrying Amount Estimated Fair Value (1) Level 1 Level 2 Level 3 (In millions) Financial assets: Cash and cash equivalents $ 5,008 $ 5,008 $ 5,008 $ — $ — Trading account securities 106 106 106 — — Securities held to maturity 2,001 2,048 1 2,047 — Securities available for sale 22,714 22,714 394 22,311 9 Loans held for sale 453 453 — 421 32 Loans (excluding leases), net of unearned income and allowance for loan losses (2)(3) 78,111 74,659 — — 74,659 Other interest-earning assets 93 93 — 93 — Derivative assets 1,079 1,079 — 1,066 13 Financial liabilities: Derivative liabilities 903 903 — 903 — Deposits 97,178 97,219 — 97,219 — Long-term borrowings 7,364 7,642 — 4,801 2,841 Loan commitments and letters of credit 103 478 — — 478 Indemnification obligation 201 197 — — 197 _________ (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, 2015 was $3.5 billion or 4.4 percent. (3) Excluded from this table is the lease carrying amount of $1.8 billion at September 30, 2015 . 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, 2014 are as follows: December 31, 2014 Carrying Amount Estimated Fair Value (1) Level 1 Level 2 Level 3 (In millions) Financial assets: Cash and cash equivalents $ 4,004 $ 4,004 $ 4,004 $ — $ — Trading account securities 106 106 106 — — Securities held to maturity 2,175 2,209 1 2,208 — Securities available for sale 22,580 22,580 322 22,247 11 Loans held for sale 541 541 — 440 101 Loans (excluding leases), net of unearned income and allowance for loan losses (2)(3) 74,482 70,114 — — 70,114 Other interest-earning assets 89 89 — 89 — Derivative assets 1,215 1,215 — 1,207 8 Financial liabilities: Derivative liabilities 1,254 1,254 — 1,254 — Deposits 94,200 94,186 — 94,186 — Short-term borrowings 2,253 2,253 — 2,253 — Long-term borrowings 3,462 3,871 — 3,504 367 Loan commitments and letters of credit 106 539 — — 539 Indemnification obligation 206 198 — — 198 _________ (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, 2014 was $4.4 billion or 5.9 percent. (3) Excluded from this table is the lease carrying amount of $1.7 billion at December 31, 2014 .

Business Segment Information

Business Segment Information	9 Months Ended
	Sep. 30, 2015
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 fourth quarter of 2014, Regions reorganized its internal management structure and, accordingly, its segment reporting structure. Previously, Regions’ three operating segments were Business Services, Consumer Services, and Wealth Management. Under the organizational realignment, Regions has created a Consumer Bank, which consists principally of the previous Consumer Services segment with businesses that serve retail and small business banking customers, and a Corporate Bank, which consists principally of the previous Business Services segment with businesses that serve middle-market and large commercial clients. Previously, small business banking was included within Business Services, but is now included in the Consumer Bank as its product set is more consistent with those offered in that segment. The Wealth Management segment remained unchanged during the reorganization. Segment results for all periods presented have been recast to reflect this organizational realignment. Additional information about the Company's reportable segments is included in Regions' Annual Report on Form 10-K for the year ended December 31, 2014. 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, 2015 Corporate Bank Consumer Bank Wealth Management Other Continuing Operations Discontinued Operations Consolidated (In millions) Net interest income (loss) $ 287 $ 613 $ 41 $ (105 ) $ 836 $ — $ 836 Provision (credit) for loan losses 8 50 2 — 60 — 60 Non-interest income 103 279 104 11 497 — 497 Non-interest expense 151 600 108 36 895 6 901 Income (loss) before income taxes 231 242 35 (130 ) 378 (6 ) 372 Income tax expense (benefit) 88 92 13 (77 ) 116 (2 ) 114 Net income (loss) $ 143 $ 150 $ 22 $ (53 ) $ 262 $ (4 ) $ 258 Average assets $ 46,671 $ 38,548 $ 2,917 $ 34,784 $ 122,920 $ — $ 122,920 Three Months Ended September 30, 2014 Corporate Bank Consumer Bank Wealth Management Other Continuing Operations Discontinued Operations Consolidated (In millions) Net interest income (loss) $ 283 $ 615 $ 44 $ (121 ) $ 821 $ — $ 821 Provision (credit) for loan losses 3 72 — (51 ) 24 — 24 Non-interest income 95 287 90 25 497 19 516 Non-interest expense 133 575 100 18 826 14 840 Income (loss) before income taxes 242 255 34 (63 ) 468 5 473 Income tax expense (benefit) 92 97 13 (51 ) 151 2 153 Net income (loss) $ 150 $ 158 $ 21 $ (12 ) $ 317 $ 3 $ 320 Average assets $ 43,573 $ 38,357 $ 2,933 $ 33,806 $ 118,669 $ — $ 118,669 Nine Months Ended September 30, 2015 Corporate Bank Consumer Bank Wealth Management Other Continuing Operations Discontinued Operations Consolidated (In millions) Net interest income (loss) $ 850 $ 1,820 $ 125 $ (324 ) $ 2,471 $ — $ 2,471 Provision (credit) for loan losses 2 151 7 12 172 — 172 Non-interest income 291 830 301 135 1,557 — 1,557 Non-interest expense 458 1,804 318 154 2,734 16 2,750 Income (loss) before income taxes 681 695 101 (355 ) 1,122 (16 ) 1,106 Income tax expense (benefit) 259 264 38 (226 ) 335 (6 ) 329 Net income (loss) $ 422 $ 431 $ 63 $ (129 ) $ 787 $ (10 ) $ 777 Average assets $ 45,908 $ 38,240 $ 2,906 $ 34,408 $ 121,462 $ — $ 121,462 Nine Months Ended September 30, 2014 Corporate Bank Consumer Bank Wealth Management Other Continuing Operations Discontinued Operations Consolidated (In millions) Net interest income (loss) $ 853 $ 1,841 $ 133 $ (367 ) $ 2,460 $ — $ 2,460 Provision (credit) for loan losses 4 219 1 (163 ) 61 — 61 Non-interest income 243 848 273 65 1,429 19 1,448 Non-interest expense 400 1,721 300 42 2,463 (7 ) 2,456 Income (loss) before income taxes 692 749 105 (181 ) 1,365 26 1,391 Income tax expense (benefit) 264 284 40 (138 ) 450 10 460 Net income $ 428 $ 465 $ 65 $ (43 ) $ 915 $ 16 $ 931 Average assets $ 43,282 $ 38,449 $ 2,954 $ 33,407 $ 118,092 $ — $ 118,092

Commitments, Contingencies and

Commitments, Contingencies and Guarantees	9 Months Ended
	Sep. 30, 2015
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, 2015 December 31, 2014 (In millions) Unused commitments to extend credit $ 45,595 $ 43,724 Standby letters of credit 1,467 1,697 Commercial letters of credit 40 71 Liabilities associated with standby letters of credit 38 40 Assets associated with standby letters of credit 39 40 Reserve for unfunded credit commitments 64 65 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, its affiliates and subsidiaries, and current and former officers, directors and employees, are sometimes collectively referred to as Regions and certain Related Persons. 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 $201 million and an estimated fair value of approximately $197 million as of September 30, 2015 (see Note 13). 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 it is reasonably possible that it may experience losses in excess of what Regions has accrued in an aggregate amount up to approximately $ 40 million as of September 30, 2015 , with it also being reasonably possible that Regions could incur no losses in excess of amounts accrued. However, as available information changes, the matters for which Regions is able to estimate, as well as the estimates themselves will be adjusted accordingly. The reasonably possible estimate includes legal contingencies that are subject to the indemnification agreement with Raymond James. 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 if 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 provided 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. Court approvals for settlements in the open-end Funds class action and for the investors represented by the Trustee Ad Litem are being sought. 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 claims under a civil Racketeer Influenced and Corrupt Organizations (“RICO”) statute 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. This matter is subject to the indemnification agreement with Raymond James. The Securities and Exchange Commission ("SEC") and states of Missouri and Texas are investigating alleged securities law violations by Morgan Keegan in the underwriting and sale of $39 million in municipal bonds. An enforcement action brought by the Missouri Secretary of State in April 2013, seeking monetary penalties and other relief, was dismissed and refiled in November 2013. Additionally a class action was brought on behalf of retail purchasers of the bonds in September 2012, seeking unspecified compensatory and punitive damages. The parties agreed to settlement terms in January 2015, and the United States District Court for the Western District of Missouri approved the settlement on October 2, 2015. An agreement in principle has been reached with all remaining investors who opted out of the class action. These matters are all subject to the indemnification agreement with Raymond James. In October 2010, a class-action lawsuit was filed by Regions’ stockholders in the U.S. District Court for the Northern District of Alabama (the “District Court”) against Regions and certain former officers of Regions (the "2010 Claim"). In May 2015, Regions entered into a settlement agreement to settle the 2010 Claim for $90 million , all of which had been previously reserved. Regions was subsequently reimbursed in full by its insurance providers. As a result, a $90 million recovery was recognized during the second quarter of 2015. The District Court granted final approval of the settlement in September 2015. 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 have filed an opposition to the action. 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. In 2013, Regions received investigative requests from the Office of Inspector General of the Department of Housing and Urban Development ("HUD") regarding its residential mortgage loan origination, underwriting and quality control practices for Federal Housing Administration ("FHA") insured loans made by Regions. Regions continues to fully cooperate in this investigation and is in discussions to resolve this inquiry. In September 2014, Regions received an investigative request from the Office of Inspector General of the Federal Housing Finance Agency ("FHFA") regarding its residential mortgage loan origination, underwriting and quality control practices for loans Regions sold to Fannie Mae and Freddie Mac; this matter is still in the early stages of investigation, and Regions is fully cooperating with the inquiry. Both of these inquiries are part of industry-wide investigations. Many institutions have settled these matters on terms that included large monetary penalties, including, in some cases, civil money penalties under applicable banking laws. 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 related to the indemnification 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, 2015 , the carrying value of the indemnification obligation was approximately $201 million . VISA INDEMNIFICATION As a member of the Visa USA network, Regions, along with other members, indemnified Visa USA against litigation. On October 3, 2007, Visa USA was restructured and acquired several Visa affiliates. In conjunction with this restructuring, Regions' indemnification of Visa USA was modified to cover specific litigation (“covered litigation”). A portion of Visa's proceeds from its initial public offering ("IPO") was put into escrow to fund the covered litigation. To the extent that the amount available under the escrow arrangement, or subsequent fundings of the escrow account resulting from reductions in the class B share conversion ratio, is insufficient to fully resolve the covered litigation, Visa will enforce the indemnification obligations of Visa USA's members for any excess amount. At this time, Regions has concluded that it is not probable that covered litigation exposure will exceed the class B share value.

Recent Accounting Pronouncement

Recent Accounting Pronouncements	9 Months Ended
	Sep. 30, 2015
New Accounting Pronouncements and Changes in Accounting Principles [Abstract]
Recent Accounting Pronouncements	RECENT ACCOUNTING PRONOUNCEMENTS In January 2014, the FASB issued new accounting guidance related to the accounting for investments in qualified affordable housing projects. The guidance allows the holder of these investments to apply a proportional amortization method, which recognizes the amortized cost of the investment as a component of income tax expense, provided that the investment meets certain criteria. The guidance is silent regarding balance sheet classification. Regions believes it would not be appropriate to classify the investment as a deferred tax asset. The decision to apply the proportional amortization method is an accounting policy election. Entities may also elect to continue to account for these investments using the equity method. The guidance became effective for fiscal years, and interim periods within those years, beginning after December 15, 2014 and was adopted by Regions for financial reporting beginning with the first quarter of 2015. The adoption is required to be applied retrospectively to all prior periods presented. The cumulative effect to retained earnings (deficit) as of January 1, 2015 of adopting this guidance was reduction of $116 million . Refer to Note 1 for additional information. In January 2014, the FASB issued new accounting guidance regarding the reclassification of residential real estate collateralized consumer mortgage loans upon foreclosures. The guidance requires reclassification of a consumer mortgage loan to other real estate owned upon obtaining legal title to the residential property, which could occur either through foreclosure or through a deed in lieu of foreclosure or similar legal agreement. The existence of a borrower redemption right will not prevent the lender from reclassifying a loan to other real estate once the lender obtains legal title to the property. In addition, entities are required to disclose the amount of foreclosed residential real estate properties and the recorded investment in residential real estate mortgage loans in the process of foreclosure on both an interim and annual basis. This guidance became effective for fiscal years, and interim periods within those fiscal years, beginning after December 15, 2014 and was adopted by Regions on a prospective basis with the first quarter of 2015 reporting. This guidance did not have a material impact upon adoption. In June 2014, the FASB issued new accounting guidance that requires two accounting changes related to the transfer and servicing of repurchase agreements and similar transactions. First, the new guidance changes the accounting for repurchase-to-maturity transactions to secured borrowing accounting. Second, for repurchase financing arrangements, the new guidance requires separate accounting for a transfer of a financial asset executed contemporaneously with a repurchase agreement with the same counterparty, which will result in secured borrowing accounting treatment for the repurchase agreement. The new guidance also requires certain disclosures for transfers of financial assets and repurchase agreements. The disclosure of certain transactions accounted for as a sale is required to be presented for fiscal years and interim periods within those years beginning after December 15, 2014 and the disclosure for repurchase agreements, securities lending transactions, and repurchase-to-maturity transactions accounted for as secured borrowing is required to be presented for fiscal years beginning after December 15, 2014, and for interim periods beginning after March 15, 2015. The accounting changes were effective for fiscal years and interim periods within those years beginning after December 15, 2014 and were adopted by Regions with the first quarter 2015 reporting. This guidance did not have a material impact upon adoption. In August 2014, the FASB issued new accounting guidance regarding the classification and measurement of foreclosed mortgage loans that are guaranteed by the government (including loans guaranteed by the FHA and the VA). The guidance addresses diversity in practice by requiring creditors to derecognize the mortgage loan upon foreclosure and to recognize a separate other receivable if the following conditions are met: (a) the government guarantee of the loan is not separable from the loan before foreclosure; (b) upon foreclosure, the creditor has the intent to convey the real estate to the guarantor and to make a claim on the guarantee, and also has the ability to make a recovery under the claim; and (c) claim amounts based on the fair value of the property are fixed upon foreclosure. Upon foreclosure, the separate other receivable should be measured based on the amount of the loan balance (principal and interest) expected to be recovered from the guarantor. This guidance became effective for fiscal years, and interim periods within those fiscal years, beginning after December 15, 2014 and was adopted by Regions on a prospective basis with the first quarter of 2015 reporting. This guidance did not have a material impact upon adoption. In August 2014, the FASB issued new accounting guidance to offer a measurement alternative for reporting entities that consolidate a collateralized financing entity ("CFE") in which the financial assets and financial liabilities are measured at fair value, with changes in fair values reflected in earnings. Under the measurement alternative, the reporting entity could elect to measure both the CFE’s financial assets and financial liabilities using the fair value of either the CFE’s financial assets or financial liabilities, whichever is more observable. This guidance became effective for the first quarter of 2015 financial reporting period. This guidance did not have a material impact upon adoption. In February 2015, the FASB issued new accounting guidance that eliminates the consolidation model created specifically for limited partnerships and creates a single model for evaluating consolidation of legal entities. The new guidance does the following: (a) modifies the evaluation of whether limited partnerships and similar legal entities are variable interest entities (VIEs) or voting interest entities; (b) eliminates the presumption that a general partner should consolidate a limited partnership; (c) modifies the consolidation analysis for all reporting entities associated with VIEs, particularly those that have fee arrangements and related party relationships; and (d) provides a scope exception from the consolidation guidance for reporting entities with interests in legal entities that are similar to investment companies as defined in the Investment Company Act of 1940. The guidance is effective for annual and interim periods beginning after December 15, 2015. Early adoption is permitted. Regions believes the adoption of this guidance will not have a material impact to its consolidated financial statements. In April 2015, the FASB issued new accounting guidance that requires entities to present debt issuance costs related to a recognized liability as a direct deduction from the carrying amount of the debt liability. The new guidance is similar to existing presentation requirements for debt discounts and does not affect entities’ recognition and measurement of debt issuance costs. Previously, entities were required to present debt issuance costs as deferred charges in the asset section of the statement of financial position. The guidance is effective for annual and interim periods beginning after December 15, 2015. All entities must apply the guidance on a retrospective basis and provide the required disclosures for a change in accounting principle in the period of adoption. Early adoption is permitted. Regions believes the adoption of this guidance will not have a material impact to its consolidated financial statements. In April 2015, the FASB issued new accounting guidance on the accounting for fees paid in a cloud computing arrangement. The standard provides guidance on how customers should evaluate whether such arrangements contain a software license that should be accounted for separately. A customer that determines a cloud computing arrangement contains a software license must account for the license consistently with the acquisition of other software licenses. If an arrangement does not contain a software license, the customer is required to account for it as a service contract. As a result, all software licenses within the scope of this guidance will be accounted for consistently with other licenses of intangible assets. The guidance is effective for annual and interim periods beginning after December 15, 2015. Entities can elect to apply the guidance either retrospectively or prospectively to all cloud computing arrangements entered into or materially modified after the effective date. Early adoption is permitted. Regions believes the adoption of this guidance will not have a material impact to its consolidated financial statements. In May 2015, the FASB issued new accounting guidance that removes the requirement to categorize within the fair value hierarchy all investments for which fair value is measured using the net asset value per share practical expedient pursuant to previous guidance. The guidance is effective for annual and interim periods beginning after December 15, 2015. All entities must apply the guidance on a retrospective basis. Early adoption is permitted. Regions believes the adoption of this guidance will not have a material impact to its consolidated financial statements. In July 2015, the FASB issued new accounting guidance to reduce the complexity in employee benefit plan accounting. The standard provides three parts to simplify the process. Part I notes that fully benefit-responsive investment contracts will be measured, presented and disclosed only at contract value, and plans are no longer required to reconcile contract value to fair value. Part II simplifies the disclosure of plan investments by allowing the following: (a) plan assets will be grouped and disclosed by general type either on the face of the financial statements or in the notes, and will no longer be disaggregated in multiple ways; (b) plans are no longer required to disclose individual plan assets that constitute 5 percent or more of net assets available for benefits; (c) the net appreciation or depreciation in investments for the period will be presented in aggregate and is no longer required to be disaggregated and disclosed by general type; and (d) plans with investment funds measured using the net asset value per share practical expedient will no longer be required to disclose the investment’s strategy. Part III allows a measurement date practical expedient and permits plans to measure investments and investment-related accounts as of a month-end that is closest to the plan’s fiscal year-end when the fiscal year-end does not coincide with a month-end. The guidance is effective for fiscal years beginning after December 15, 2015. Entities should apply the amendments in Parts I and II retrospectively for all financial statements presented and should apply the amendments in Part III prospectively. Early adoption is permitted for any of the three parts individually. Regions believes the adoption of this guidance will not have a material impact to its consolidated financial statements. 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 September 2015, the FASB issued new accounting guidance that eliminates the requirement for an acquirer in a business combination to account for measurement-period adjustments retrospectively. The following key changes were made: (a) acquirers will recognize measurement-period adjustments during the period in which they determine the amounts, including the effect on earnings of any amounts that would have been recorded in previous periods if the accounting had been completed at the acquisition date; (b) acquirers will disclose the amounts and reasons for adjustments to the provisional amounts; and (c) acquirers will disclose, by line item, the amount of the adjustment reflected in the current-period income statement that would have been recognized in previous periods if the adjustment to the provisional amounts had been recognized as of the acquisition date. The guidance is effective for annual and interim periods beginning after December 15, 2015. Early adoption is permitted. Regions believes the adoption of this guidance will not have a material impact to its consolidated financial statements. Further information related to recent accounting pronouncements and accounting changes adopted by Regions prior to the third quarter of 2015 is included in the Annual Report on Form 10-K for the year ended December 31, 2014 .

Discontinued Operations (Tables

Discontinued Operations (Tables)	9 Months Ended
	Sep. 30, 2015
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 2015 2014 2015 2014 (In millions, except per share data) Non-interest income: Insurance proceeds $ — $ 19 $ — $ 19 Total non-interest income — 19 — 19 Non-interest expense: Professional and legal expenses 7 14 16 (8 ) Other (1 ) — — 1 Total non-interest expense 6 14 16 (7 ) Income (loss) from discontinued operations before income taxes (6 ) 5 (16 ) 26 Income tax expense (benefit) (2 ) 2 (6 ) 10 Income (loss) from discontinued operations, net of tax $ (4 ) $ 3 $ (10 ) $ 16 Earnings (loss) per common share from discontinued operations: Basic $ (0.00 ) $ 0.00 $ (0.01 ) $ 0.01 Diluted $ (0.00 ) $ 0.00 $ (0.01 ) $ 0.01

Securities (Tables)

Securities (Tables)	9 Months Ended
	Sep. 30, 2015
Investments, Debt and Equity Securities [Abstract]
Schedule Of Amortized Cost And Estimated Fair Value Of Securities Available For Sale And Securities Held To Maturity Textblock [Table Text Block]	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, 2015 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: U.S. Treasury securities $ 1 $ — $ — $ 1 $ — $ — $ 1 Federal agency securities 350 — (11 ) 339 11 — 350 Mortgage-backed securities: Residential agency 1,540 — (64 ) 1,476 36 — 1,512 Commercial agency 190 — (5 ) 185 — — 185 $ 2,081 $ — $ (80 ) $ 2,001 $ 47 $ — $ 2,048 Securities available for sale: U.S. Treasury securities $ 180 $ 2 $ — $ 182 $ 182 Federal agency securities 222 4 — 226 226 Obligations of states and political subdivisions 1 — — 1 1 Mortgage-backed securities: Residential agency 15,613 238 (31 ) 15,820 15,820 Residential non-agency 6 — — 6 6 Commercial agency 2,379 36 (1 ) 2,414 2,414 Commercial non-agency 1,404 13 (7 ) 1,410 1,410 Corporate and other debt securities 1,798 17 (53 ) 1,762 1,762 Equity securities 887 8 (2 ) 893 893 $ 22,490 $ 318 $ (94 ) $ 22,714 $ 22,714 December 31, 2014 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 — (12 ) 338 6 — 344 Mortgage-backed securities: Residential agency 1,698 — (71 ) 1,627 35 (1 ) 1,661 Commercial agency 216 — (7 ) 209 — (6 ) 203 $ 2,265 $ — $ (90 ) $ 2,175 $ 41 $ (7 ) $ 2,209 Securities available for sale: U.S. Treasury securities $ 176 $ — $ — $ 176 $ 176 Federal agency securities 233 2 — 235 235 Obligations of states and political subdivisions 2 — — 2 2 Mortgage-backed securities: Residential agency 15,788 283 (33 ) 16,038 16,038 Residential non-agency 7 1 — 8 8 Commercial agency 1,959 14 (9 ) 1,964 1,964 Commercial non-agency 1,489 14 (9 ) 1,494 1,494 Corporate and other debt securities 1,980 36 (26 ) 1,990 1,990 Equity securities 662 12 (1 ) 673 673 $ 22,296 $ 362 $ (78 ) $ 22,580 $ 22,580 _________ (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 Of Equity Securities Related To Federal Reserve Bank Stock And Federal Home Loan Bank Stock	Equity securities in the tables above included the following amortized cost related to Federal Reserve Bank stock and Federal Home Loan Bank (“FHLB”) stock. Shares in the Federal Reserve Bank and FHLB are accounted for at amortized cost, which approximates fair value. September 30, 2015 December 31, 2014 (In millions) Federal Reserve Bank $ 484 $ 488 Federal Home Loan Bank 197 39
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, 2015 , 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: Due in one year or less $ 1 $ 1 Due after one year through five years 350 350 Mortgage-backed securities: Residential agency 1,540 1,512 Commercial agency 190 185 $ 2,081 $ 2,048 Securities available for sale: Due in one year or less $ 95 $ 95 Due after one year through five years 835 842 Due after five years through ten years 968 952 Due after ten years 303 282 Mortgage-backed securities: Residential agency 15,613 15,820 Residential non-agency 6 6 Commercial agency 2,379 2,414 Commercial non-agency 1,404 1,410 Equity securities 887 893 $ 22,490 $ 22,714
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, 2015 and December 31, 2014 . 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, 2015 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 $ 223 $ (3 ) $ 1,173 $ (25 ) $ 1,396 $ (28 ) Commercial agency — — 185 (5 ) 185 (5 ) $ 223 $ (3 ) $ 1,358 $ (30 ) $ 1,581 $ (33 ) Securities available for sale: U.S. Treasury securities $ 4 $ — $ 9 $ — $ 13 $ — Federal agency securities — — 3 — 3 — Mortgage-backed securities: Residential agency 3,658 (20 ) 816 (11 ) 4,474 (31 ) Commercial agency 348 (1 ) 160 — 508 (1 ) Commercial non-agency 432 (4 ) 248 (3 ) 680 (7 ) All other securities 708 (29 ) 299 (26 ) 1,007 (55 ) $ 5,150 $ (54 ) $ 1,535 $ (40 ) $ 6,685 $ (94 ) December 31, 2014 Less Than Twelve Months Twelve Months or More Total Estimated Gross Estimated Gross Estimated Gross (In millions) Securities held to maturity: Federal agency securities $ — $ — $ 344 $ (6 ) $ 344 $ (6 ) Mortgage-backed securities: Residential agency — — 1,659 (37 ) 1,659 (37 ) Commercial agency — — 203 (13 ) 203 (13 ) $ — $ — $ 2,206 $ (56 ) $ 2,206 $ (56 ) Securities available for sale: U.S. Treasury securities $ 74 $ — $ 3 $ — $ 77 $ — Federal agency securities — — 3 — 3 — Mortgage-backed securities: Residential agency 1,178 (5 ) 2,587 (28 ) 3,765 (33 ) Commercial agency 464 (4 ) 316 (5 ) 780 (9 ) Commercial non-agency 242 (1 ) 500 (8 ) 742 (9 ) All other securities 400 (7 ) 455 (20 ) 855 (27 ) $ 2,358 $ (17 ) $ 3,864 $ (61 ) $ 6,222 $ (78 )
Schedule Of Gross Realized Gains And Gross Realized Losses On Available For Sale Securities	Gross realized gains and gross realized losses on sales of securities available for sale are shown in the table below. The cost of securities sold is based on the specific identification method. Three Months Ended September 30 Nine Months Ended September 30 2015 2014 2015 2014 (In millions) Gross realized gains $ 15 $ 9 $ 29 $ 25 Gross realized losses (2 ) (2 ) (5 ) (8 ) Other-than-temporary-impairment ("OTTI") (6 ) — (6 ) (2 ) Securities gains, net $ 7 $ 7 $ 18 $ 15

Loans and the Allowance for C28

Loans and the Allowance for Credit Losses (Tables)	9 Months Ended
	Sep. 30, 2015
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, 2015 December 31, 2014 (In millions, net of unearned income) Commercial and industrial $ 35,906 $ 32,732 Commercial real estate mortgage—owner-occupied 7,741 8,263 Commercial real estate construction—owner-occupied 406 407 Total commercial 44,053 41,402 Commercial investor real estate mortgage 4,386 4,680 Commercial investor real estate construction 2,525 2,133 Total investor real estate 6,911 6,813 Residential first mortgage 12,730 12,315 Home equity 10,947 10,932 Indirect—vehicles 3,895 3,642 Indirect—other consumer 490 206 Consumer credit card 1,016 1,009 Other consumer 1,021 988 Total consumer 30,099 29,092 $ 81,063 $ 77,307
Analysis of the Allowance for Credit Losses by Portfolio Segment	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 Three Months Ended September 30, 2014 Commercial Investor Real Estate Consumer Total (In millions) Allowance for loan losses, July 1, 2014 $ 705 $ 190 $ 334 $ 1,229 Provision (credit) for loan losses 18 (23 ) 29 24 Loan losses: Charge-offs (49 ) (5 ) (66 ) (120 ) Recoveries 21 6 18 45 Net loan losses (28 ) 1 (48 ) (75 ) Allowance for loan losses, September 30, 2014 695 168 315 1,178 Reserve for unfunded credit commitments, July 1, 2014 74 12 3 89 Provision (credit) for unfunded credit losses (21 ) (3 ) — (24 ) Reserve for unfunded credit commitments, September 30, 2014 53 9 3 65 Allowance for credit losses, September 30, 2014 $ 748 $ 177 $ 318 $ 1,243 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 Nine Months Ended September 30, 2014 Commercial Investor Real Estate Consumer Total (In millions) Allowance for loan losses, January 1, 2014 $ 711 $ 236 $ 394 $ 1,341 Provision (credit) for loan losses 62 (68 ) 67 61 Loan losses: Charge-offs (130 ) (21 ) (203 ) (354 ) Recoveries 52 21 57 130 Net loan losses (78 ) — (146 ) (224 ) Allowance for loan losses, September 30, 2014 695 168 315 1,178 Reserve for unfunded credit commitments, January 1, 2014 63 12 3 78 Provision (credit) for unfunded credit losses (10 ) (3 ) — (13 ) Reserve for unfunded credit commitments, September 30, 2014 53 9 3 65 Allowance for credit losses, September 30, 2014 $ 748 $ 177 $ 318 $ 1,243 Portion of ending allowance for loan losses: Individually evaluated for impairment $ 204 $ 80 $ 79 $ 363 Collectively evaluated for impairment 491 88 236 815 Total allowance for loan losses $ 695 $ 168 $ 315 $ 1,178 Portion of loan portfolio ending balance: Individually evaluated for impairment $ 758 $ 466 $ 849 $ 2,073 Collectively evaluated for impairment 40,115 6,352 28,067 74,534 Total loans evaluated for impairment $ 40,873 $ 6,818 $ 28,916 $ 76,607
Financing Receivable Credit Quality Indicators	September 30, 2015 Pass Special Mention Substandard Accrual Non-accrual Total (In millions) Commercial and industrial $ 33,972 $ 878 $ 706 $ 350 $ 35,906 Commercial real estate mortgage—owner-occupied 6,872 347 289 233 7,741 Commercial real estate construction—owner-occupied 369 21 13 3 406 Total commercial $ 41,213 $ 1,246 $ 1,008 $ 586 $ 44,053 Commercial investor real estate mortgage $ 4,020 $ 158 $ 169 $ 39 $ 4,386 Commercial investor real estate construction 2,477 12 35 1 2,525 Total investor real estate $ 6,497 $ 170 $ 204 $ 40 $ 6,911 Accrual Non-accrual Total (In millions) Residential first mortgage $ 12,663 $ 67 $ 12,730 Home equity 10,851 96 10,947 Indirect—vehicles 3,895 — 3,895 Indirect—other consumer 490 — 490 Consumer credit card 1,016 — 1,016 Other consumer 1,021 — 1,021 Total consumer $ 29,936 $ 163 $ 30,099 $ 81,063 December 31, 2014 Pass Special Mention Substandard Accrual Non-accrual Total (In millions) Commercial and industrial $ 31,492 $ 626 $ 362 $ 252 $ 32,732 Commercial real estate mortgage—owner-occupied 7,425 315 285 238 8,263 Commercial real estate construction—owner-occupied 387 9 8 3 407 Total commercial $ 39,304 $ 950 $ 655 $ 493 $ 41,402 Commercial investor real estate mortgage $ 4,152 $ 234 $ 171 $ 123 $ 4,680 Commercial investor real estate construction 2,060 22 49 2 2,133 Total investor real estate $ 6,212 $ 256 $ 220 $ 125 $ 6,813 Accrual Non-accrual Total (In millions) Residential first mortgage $ 12,206 $ 109 $ 12,315 Home equity 10,830 102 10,932 Indirect—vehicles 3,642 — 3,642 Indirect—other consumer 206 — 206 Consumer credit card 1,009 — 1,009 Other consumer 988 — 988 Total consumer $ 28,881 $ 211 $ 29,092 $ 77,307
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, 2015 and December 31, 2014 : September 30, 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 $ 5 $ 7 $ 23 $ 35,556 $ 350 $ 35,906 Commercial real estate mortgage—owner-occupied 28 13 6 47 7,508 233 7,741 Commercial real estate construction—owner-occupied 1 — — 1 403 3 406 Total commercial 40 18 13 71 43,467 586 44,053 Commercial investor real estate mortgage 18 6 2 26 4,347 39 4,386 Commercial investor real estate construction 1 — — 1 2,524 1 2,525 Total investor real estate 19 6 2 27 6,871 40 6,911 Residential first mortgage 91 48 231 370 12,663 67 12,730 Home equity 67 31 51 149 10,851 96 10,947 Indirect—vehicles 40 12 8 60 3,895 — 3,895 Indirect—other consumer 1 1 — 2 490 — 490 Consumer credit card 6 5 11 22 1,016 — 1,016 Other consumer 12 2 4 18 1,021 — 1,021 Total consumer 217 99 305 621 29,936 163 30,099 $ 276 $ 123 $ 320 $ 719 $ 80,274 $ 789 $ 81,063 December 31, 2014 Accrual Loans 30-59 DPD 60-89 DPD 90+ DPD Total 30+ DPD Total Accrual Non-accrual Total (In millions) Commercial and industrial $ 16 $ 7 $ 7 $ 30 $ 32,480 $ 252 $ 32,732 Commercial real estate mortgage—owner-occupied 21 13 5 39 8,025 238 8,263 Commercial real estate construction—owner-occupied 1 — — 1 404 3 407 Total commercial 38 20 12 70 40,909 493 41,402 Commercial investor real estate mortgage 17 3 3 23 4,557 123 4,680 Commercial investor real estate construction — — — — 2,131 2 2,133 Total investor real estate 17 3 3 23 6,688 125 6,813 Residential first mortgage 99 64 247 410 12,206 109 12,315 Home equity 73 38 63 174 10,830 102 10,932 Indirect—vehicles 43 10 7 60 3,642 — 3,642 Indirect—other consumer — — — — 206 — 206 Consumer credit card 8 5 12 25 1,009 — 1,009 Other consumer 13 4 3 20 988 — 988 Total consumer 236 121 332 689 28,881 211 29,092 $ 291 $ 144 $ 347 $ 782 $ 76,478 $ 829 $ 77,307
Impaired Financing Receivables	The following tables present details related to the Company’s impaired loans as of September 30, 2015 and December 31, 2014 . Loans deemed to be impaired include all TDRs and all non-accrual commercial and investor real estate loans, excluding leases. Loans which have been fully charged-off do not appear in the tables below. Non-accrual Impaired Loans As of September 30, 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 $ 380 $ 31 $ 349 $ 42 $ 307 $ 104 35.5 % Commercial real estate mortgage—owner-occupied 252 19 233 38 195 60 31.3 Commercial real estate construction—owner-occupied 3 — 3 — 3 1 33.3 Total commercial 635 50 585 80 505 165 33.9 Commercial investor real estate mortgage 47 8 39 16 23 10 38.3 Commercial investor real estate construction 1 — 1 — 1 — — Total investor real estate 48 8 40 16 24 10 37.5 Residential first mortgage 55 18 37 — 37 5 41.8 Home equity 21 6 15 — 15 — 28.6 Total consumer 76 24 52 — 52 5 38.2 $ 759 $ 82 $ 677 $ 96 $ 581 $ 180 34.5 % Accruing Impaired Loans As of September 30, 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 $ 66 $ 2 $ 64 $ 12 21.2 % Commercial real estate mortgage—owner-occupied 100 6 94 10 16.0 Commercial real estate construction—owner-occupied 1 — 1 — — Total commercial 167 8 159 22 18.0 Commercial investor real estate mortgage 157 8 149 16 15.3 Commercial investor real estate construction 4 1 3 1 50.0 Total investor real estate 161 9 152 17 16.1 Residential first mortgage 456 12 444 57 15.1 Home equity 341 7 334 8 4.4 Indirect—vehicles 1 — 1 — — Consumer credit card 2 — 2 — — Other consumer 13 — 13 — — Total consumer 813 19 794 65 10.3 $ 1,141 $ 36 $ 1,105 $ 104 12.3 % Total Impaired Loans As of September 30, 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 $ 446 $ 33 $ 413 $ 42 $ 371 $ 116 33.4 % Commercial real estate mortgage—owner-occupied 352 25 327 38 289 70 27.0 Commercial real estate construction—owner-occupied 4 — 4 — 4 1 25.0 Total commercial 802 58 744 80 664 187 30.5 Commercial investor real estate mortgage 204 16 188 16 172 26 20.6 Commercial investor real estate construction 5 1 4 — 4 1 40.0 Total investor real estate 209 17 192 16 176 27 21.1 Residential first mortgage 511 30 481 — 481 62 18.0 Home equity 362 13 349 — 349 8 5.8 Indirect—vehicles 1 — 1 — 1 — — Consumer credit card 2 — 2 — 2 — — Other consumer 13 — 13 — 13 — — Total consumer 889 43 846 — 846 70 12.7 $ 1,900 $ 118 $ 1,782 $ 96 $ 1,686 $ 284 21.2 % Non-accrual Impaired Loans As of December 31, 2014 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 $ 286 $ 36 $ 250 $ 11 $ 239 $ 83 41.6 % Commercial real estate mortgage—owner-occupied 267 29 238 43 195 69 36.7 Commercial real estate construction—owner-occupied 3 — 3 — 3 1 33.3 Total commercial 556 65 491 54 437 153 39.2 Commercial investor real estate mortgage 162 39 123 26 97 30 42.6 Commercial investor real estate construction 3 1 2 — 2 1 66.7 Total investor real estate 165 40 125 26 99 31 43.0 Residential first mortgage 79 26 53 — 53 7 41.8 Home equity 22 7 15 — 15 1 36.4 Total consumer 101 33 68 — 68 8 40.6 $ 822 $ 138 $ 684 $ 80 $ 604 $ 192 40.1 % Accruing Impaired Loans As of December 31, 2014 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 $ 102 $ 3 $ 99 $ 17 19.6 % Commercial real estate mortgage—owner-occupied 162 10 152 16 16.0 Total commercial 264 13 251 33 17.4 Commercial investor real estate mortgage 267 8 259 28 13.5 Commercial investor real estate construction 33 — 33 6 18.2 Total investor real estate 300 8 292 34 14.0 Residential first mortgage 426 11 415 57 16.0 Home equity 359 6 353 13 5.3 Indirect—vehicles 1 — 1 — — Consumer credit card 2 — 2 — — Other consumer 17 — 17 — — Total consumer 805 17 788 70 10.8 $ 1,369 $ 38 $ 1,331 $ 137 12.8 % Total Impaired Loans As of December 31, 2014 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 $ 388 $ 39 $ 349 $ 11 $ 338 $ 100 35.8 % Commercial real estate mortgage—owner-occupied 429 39 390 43 347 85 28.9 Commercial real estate construction—owner-occupied 3 — 3 — 3 1 33.3 Total commercial 820 78 742 54 688 186 32.2 Commercial investor real estate mortgage 429 47 382 26 356 58 24.5 Commercial investor real estate construction 36 1 35 — 35 7 22.2 Total investor real estate 465 48 417 26 391 65 24.3 Residential first mortgage 505 37 468 — 468 64 20.0 Home equity 381 13 368 — 368 14 7.1 Indirect—vehicles 1 — 1 — 1 — — Consumer credit card 2 — 2 — 2 — — Other consumer 17 — 17 — 17 — — Total consumer 906 50 856 — 856 78 14.1 $ 2,191 $ 176 $ 2,015 $ 80 $ 1,935 $ 329 23.0 % ________ (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, 2015 and 2014 . 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 2015 2014 2015 2014 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 $ 379 $ 1 $ 296 $ 2 $ 378 $ 4 $ 382 $ 7 Commercial real estate mortgage—owner-occupied 322 2 464 2 350 7 491 9 Commercial real estate construction—owner-occupied 4 — 30 1 4 — 36 1 Total commercial 705 3 790 5 732 11 909 17 Commercial investor real estate mortgage 210 2 446 4 266 8 532 18 Commercial investor real estate construction 14 — 44 — 26 1 68 2 Total investor real estate 224 2 490 4 292 9 600 20 Residential first mortgage 477 3 451 3 476 11 454 10 Home equity 352 5 379 5 357 14 383 15 Indirect—vehicles 1 — 1 — 1 — 1 — Consumer credit card 2 — 2 — 2 — 2 — Other consumer 13 1 19 — 15 1 22 1 Total consumer 845 9 852 8 851 26 862 26 Total impaired loans $ 1,774 $ 14 $ 2,132 $ 17 $ 1,875 $ 46 $ 2,371 $ 63
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. The end of period balance, for the period in which it was added, of total loans first reported as new TDRs totaled approximately $217 million and $316 million for the nine months ended September 30, 2015 and 2014 , respectively. 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 Three Months Ended September 30, 2014 Financial Impact of Modifications Considered TDRs Number of Obligors Recorded Investment Increase in Allowance at Modification (Dollars in millions) Commercial and industrial 67 $ 72 $ 2 Commercial real estate mortgage—owner-occupied 61 49 1 Total commercial 128 121 3 Commercial investor real estate mortgage 43 66 1 Commercial investor real estate construction 8 24 1 Total investor real estate 51 90 2 Residential first mortgage 144 26 4 Home equity 142 8 — Consumer credit card 40 1 — Indirect—vehicles and other consumer 77 1 — Total consumer 403 36 4 582 $ 247 $ 9 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 Nine Months Ended September 30, 2014 Financial Impact Number of Recorded Increase in (Dollars in millions) Commercial and industrial 216 $ 236 $ 4 Commercial real estate mortgage—owner-occupied 218 196 4 Commercial real estate construction—owner-occupied 3 3 — Total commercial 437 435 8 Commercial investor real estate mortgage 193 274 5 Commercial investor real estate construction 36 39 1 Total investor real estate 229 313 6 Residential first mortgage 408 71 11 Home equity 481 28 — Consumer credit card 104 1 — Indirect—vehicles and other consumer 194 3 — Total consumer 1,187 103 11 1,853 $ 851 $ 25 Defaulted TDRs The following table presents, by portfolio segment and class, TDRs that defaulted during the three and nine months ended September 30, 2015 and 2014 , 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, 2014 . Three Months Ended September 30 Nine Months Ended September 30 2015 2014 2015 2014 (In millions) Defaulted During the Period, Where Modified in a TDR Twelve Months Prior to Default Commercial and industrial $ 4 $ 2 $ 8 $ 48 Commercial real estate mortgage—owner-occupied 3 10 6 17 Total commercial 7 12 14 65 Commercial investor real estate mortgage — 1 1 5 Commercial investor real estate construction — — — 1 Total investor real estate — 1 1 6 Residential first mortgage 7 2 15 14 Home equity 1 — 2 2 Total consumer 8 2 17 16 $ 15 $ 15 $ 32 $ 87

Servicing of Financial Assets (

Servicing of Financial Assets (Tables)	9 Months Ended
	Sep. 30, 2015
Transfers and Servicing of Financial Assets [Abstract]
Schedule of Servicing Rights Under The Fair Value Measurement Method	The table below presents an analysis of residential mortgage servicing rights under the fair value measurement method: Three Months Ended September 30 Nine Months Ended September 30 2015 2014 2015 2014 (In millions) Carrying value, beginning of period $ 268 $ 276 $ 257 $ 297 Additions 9 9 28 24 Increase (decrease) in fair value (1) : Due to change in valuation inputs or assumptions (25 ) — (14 ) (20 ) Economic amortization associated with borrower repayments (11 ) (8 ) (30 ) (24 ) Carrying value, end of period $ 241 $ 277 $ 241 $ 277 ________ (1) "Economic amortization associated with borrower repayments" includes both total loan payoffs as well as partial paydowns. Prior to the fourth quarter of 2014, this line item reflected total loan payoffs only, while partial paydowns were included in the "Due to change in valuation inputs or assumptions" line item. The 2014 three and nine months ended amount disclosed in the table has been reclassified to reflect the revised presentation.
Data And Assumptions Used In The Fair Value Calculation As Well As The Valuation's Sensitivity To Rate Fluctuations Related To 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 mortgage servicing rights (excluding related derivative instruments) are as follows: September 30 2015 2014 (Dollars in millions) Unpaid principal balance $ 26,220 $ 26,943 Weighted-average prepayment speed (CPR; percentage) 12.0 % 10.9 % Estimated impact on fair value of a 10% increase $ (13 ) $ (15 ) Estimated impact on fair value of a 20% increase $ (25 ) $ (28 ) Option-adjusted spread (basis points) 999 789 Estimated impact on fair value of a 10% increase $ (9 ) $ (8 ) Estimated impact on fair value of a 20% increase $ (18 ) $ (17 ) Weighted-average coupon interest rate 4.4 % 4.5 % Weighted-average remaining maturity (months) 279 279 Weighted-average servicing fee (basis points) 27.9 27.8
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 2015 2014 2015 2014 (In millions) Servicing related fees and other ancillary income $ 21 $ 21 $ 62 $ 64
Analysis Of Repurchase Liability Related To Residential Mortgage Loans Sold With Representations And Warranty Provisions	The table below presents an analysis of Regions’ repurchase liability related to residential mortgage loans sold with representations and warranty provisions: Three Months Ended September 30 Nine Months Ended September 30 2015 2014 2015 2014 (In millions) Beginning balance $ 20 $ 34 $ 26 $ 39 Additions (reductions), net (6 ) (5 ) (10 ) (3 ) Losses — (1 ) (2 ) (8 ) Ending balance $ 14 $ 28 $ 14 $ 28

Goodwill (Tables)

Goodwill (Tables)	9 Months Ended
	Sep. 30, 2015
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, 2015 December 31, 2014 (In millions) Corporate Bank $ 2,258 $ 2,258 Consumer Bank 2,095 2,095 Wealth Management 478 463 $ 4,831 $ 4,816

Stockholders' Equity and Accu31

Stockholders' Equity and Accumulated Other Comprehensive Income (Loss) (Tables)	9 Months Ended
	Sep. 30, 2015
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, 2015 December 31, 2014 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 $ 395 $ 419 Series B 4/29/2014 9/15/2024 6.375 % (1) 500 441 465 $ 1,000 $ 836 $ 884 _________ (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) is shown in the following tables: 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 ) Three Months Ended September 30, 2014 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 $ (60 ) $ 203 $ 44 $ (239 ) $ (52 ) Net change 2 (92 ) (37 ) 5 (122 ) End of period $ (58 ) $ 111 $ 7 $ (234 ) $ (174 ) 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 ) Nine Months Ended September 30, 2014 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 $ (64 ) $ (22 ) $ 15 $ (248 ) $ (319 ) Net change 6 133 (8 ) 14 145 End of period $ (58 ) $ 111 $ 7 $ (234 ) $ (174 )
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, 2015 and 2014 : Three Months Ended September 30, 2015 Three Months Ended September 30, 2014 Details about Accumulated Other Comprehensive Income (Loss) Components Amount Reclassified from Accumulated Other Comprehensive Income (Loss) (1) Amount Reclassified from Accumulated Other Comprehensive Income (Loss) (1) Affected Line Item in the Consolidated Statements of Income (In millions) Unrealized losses on securities transferred to held to maturity: $ (3 ) $ (3 ) Net interest income 1 1 Tax (expense) or benefit $ (2 ) $ (2 ) Net of tax Unrealized gains and (losses) on available-for-sale securities: $ 7 $ 7 Securities gains, net (2 ) (2 ) Tax (expense) or benefit $ 5 $ 5 Net of tax Gains and (losses) on cash flow hedges: Interest rate contracts $ 41 $ 34 Net interest income (16 ) (13 ) Tax (expense) or benefit $ 25 $ 21 Net of tax Amortization of defined benefit pension plans and other post employment benefits: Prior-service cost $ (1 ) $ — (2) Actuarial gains (losses) (12 ) (7 ) (2) (13 ) (7 ) Total before tax 4 2 Tax (expense) or benefit $ (9 ) $ (5 ) Net of tax Total reclassifications for the period $ 19 $ 19 Net of tax Nine Months Ended September 30, 2015 Nine Months Ended September 30, 2014 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: $ (10 ) $ (10 ) Net interest income 4 4 Tax (expense) or benefit $ (6 ) $ (6 ) Net of tax Unrealized gains and (losses) on available-for-sale securities: $ 18 $ 15 Securities gains, net (6 ) (5 ) Tax (expense) or benefit $ 12 $ 10 Net of tax Gains and (losses) on cash flow hedges: Interest rate contracts $ 108 $ 91 Net interest income (41 ) (35 ) Tax (expense) or benefit $ 67 $ 56 Net of tax Amortization of defined benefit pension plans and other post employment benefits: Prior-service cost $ (1 ) $ (1 ) (2) Actuarial gains (losses) (36 ) (18 ) (2) (37 ) (19 ) Total before tax 13 6 Tax (expense) or benefit $ (24 ) $ (13 ) Net of tax Total reclassifications for the period $ 49 $ 47 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 Sh32

Earnings (Loss) Per Common Share (Tables)	9 Months Ended
	Sep. 30, 2015
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 2015 2014 2015 2014 (In millions, except per share amounts) Numerator: Income from continuing operations $ 262 $ 317 $ 787 $ 915 Preferred stock dividends (16 ) (20 ) (48 ) (36 ) Income from continuing operations available to common shareholders 246 297 739 879 Income (loss) from discontinued operations, net of tax (4 ) 3 (10 ) 16 Net income available to common shareholders $ 242 $ 300 $ 729 $ 895 Denominator: Weighted-average common shares outstanding—basic 1,319 1,378 1,333 1,378 Potential common shares 7 11 10 12 Weighted-average common shares outstanding—diluted 1,326 1,389 1,343 1,390 Earnings per common share from continuing operations available to common shareholders (1) : Basic $ 0.19 $ 0.22 $ 0.55 $ 0.64 Diluted 0.19 0.21 0.55 0.63 Earnings (loss) per common share from discontinued operations (1) : Basic (0.00 ) 0.00 (0.01 ) 0.01 Diluted (0.00 ) 0.00 (0.01 ) 0.01 Earnings per common share (1) : Basic 0.18 0.22 0.55 0.65 Diluted 0.18 0.22 0.54 0.64 ________ (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, 2015
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 2015 2014 Number of Options Weighted-Average Exercise Price Number of Options Weighted-Average Exercise Price Outstanding at beginning of period 25,316,676 $ 23.07 32,127,235 $ 22.81 Exercised (535,107 ) 6.92 (2,166,521 ) 4.52 Canceled/Forfeited (5,410,769 ) 31.82 (4,486,405 ) 30.44 Outstanding at end of period 19,370,800 $ 21.07 25,474,309 $ 23.02 Exercisable at end of period 19,370,800 $ 21.07 25,474,309 $ 23.02
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 2015 2014 Number of Shares Weighted-Average Grant Date Fair Value Number of Shares Weighted-Average Non-vested at beginning of period 18,427,409 $ 8.07 16,212,198 $ 6.83 Granted 6,622,682 9.90 5,368,113 11.22 Vested (8,106,010 ) 6.07 (2,623,699 ) 6.82 Forfeited (506,271 ) 8.54 (459,102 ) 8.06 Non-vested at end of period 16,437,810 $ 9.51 18,497,510 $ 8.07

Pension and Other Postretirem34

Pension and Other Postretirement Benefits (Tables)	9 Months Ended
	Sep. 30, 2015
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 2015 2014 2015 2014 2015 2014 (In millions) Service cost $ 10 $ 9 $ 1 $ 1 $ 11 $ 10 Interest cost 21 21 2 2 23 23 Expected return on plan assets (38 ) (34 ) — — (38 ) (34 ) Amortization of actuarial loss 11 6 1 1 12 7 Amortization of prior service cost — — 1 — 1 — Settlement charge — — — — — — Net periodic pension cost $ 4 $ 2 $ 5 $ 4 $ 9 $ 6 Qualified Plan Non-qualified Plans Total Nine Months Ended September 30 2015 2014 2015 2014 2015 2014 (In millions) Service cost $ 30 $ 25 $ 4 $ 3 $ 34 $ 28 Interest cost 63 65 5 5 68 70 Expected return on plan assets (112 ) (103 ) — — (112 ) (103 ) Amortization of actuarial loss 33 16 3 2 36 18 Amortization of prior service cost — — 1 1 1 1 Settlement charge — — — 3 — 3 Net periodic pension cost $ 14 $ 3 $ 13 $ 14 $ 27 $ 17

Derivative Financial Instrume35

Derivative Financial Instruments and Hedging Activities (Tables)	9 Months Ended
	Sep. 30, 2015
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, 2015 and December 31, 2014 . September 30, 2015 December 31, 2014 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 $ 2,650 $ 21 $ 37 $ 2,817 $ 6 $ 30 Derivatives in cash flow hedging relationships: Interest rate swaps 9,800 199 — 8,050 38 31 Total derivatives designated as hedging instruments $ 12,450 $ 220 $ 37 $ 10,867 $ 44 $ 61 Derivatives not designated as hedging instruments: Interest rate swaps $ 39,976 $ 645 $ 668 $ 45,860 $ 941 $ 972 Interest rate options 2,954 15 1 3,016 10 2 Interest rate futures and forward commitments 18,801 10 14 17,978 3 8 Other contracts 4,713 189 183 4,149 217 211 Total derivatives not designated as hedging instruments $ 66,444 $ 859 $ 866 $ 71,003 $ 1,171 $ 1,193 Total derivatives $ 78,894 $ 1,079 $ 903 $ 81,870 $ 1,215 $ 1,254 _________ (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 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 2015 2014 2015 2014 (In millions) (In millions) Fair Value Hedges: Interest rate swaps on: Debt/CDs $ 5 $ 4 Interest expense $ (1 ) $ 7 Debt/CDs 10 (11 ) Other non-interest expense (11 ) 10 Securities available for sale (3 ) (4 ) Interest income — — Securities available for sale (23 ) — Other non-interest expense 21 (2 ) Total $ (11 ) $ (11 ) $ 9 $ 15 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 2015 2014 2015 2014 (In millions) (In millions) Cash Flow Hedges: Interest rate swaps $ 96 $ (37 ) Interest income on loans $ 41 $ 34 Forward starting swaps — — Interest expense on debt — — Total $ 96 $ (37 ) $ 41 $ 34 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 2015 2014 2015 2014 (In millions) (In millions) Fair Value Hedges: Interest rate swaps on: Debt/CDs $ 13 $ 19 Interest expense $ 5 $ 15 Debt/CDs 14 (25 ) Other non-interest expense (15 ) 27 Securities available for sale (11 ) (12 ) Interest income — — Securities available for sale (18 ) (32 ) Other non-interest expense 15 25 Total $ (2 ) $ (50 ) $ 5 $ 67 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 2015 2014 2015 2014 (In millions) (In millions) Cash Flow Hedges: Interest rate swaps $ 108 $ (11 ) Interest income on loans $ 108 $ 96 Forward starting swaps — 3 Interest expense on debt — (5 ) Total $ 108 $ (8 ) $ 108 $ 91 ______ (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, 2015 and 2014 : Three Months Ended September 30 Nine Months Ended September 30 Derivatives Not Designated as Hedging Instruments 2015 2014 2015 2014 (In millions) Capital markets fee income and other (1) : Interest rate swaps $ 3 $ 5 $ 11 $ 10 Interest rate options 5 — 9 — Interest rate futures and forward commitments 1 1 — — Other contracts 8 2 1 8 Total capital markets fee income and other 17 8 21 18 Mortgage income: Interest rate swaps 22 1 19 19 Interest rate options — (3 ) 4 3 Interest rate futures and forward commitments (8 ) 9 (1 ) 1 Total mortgage income 14 7 22 23 $ 31 $ 15 $ 43 $ 41 ______ (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, 2015 and December 31, 2014 . Offsetting Derivative Assets Offsetting Derivative Liabilities September 30, 2015 December 31, 2014 September 30, 2015 December 31, 2014 (In millions) Gross amounts subject to offsetting $ 905 $ 1,157 $ 778 $ 1,195 Gross amounts not subject to offsetting 174 58 125 59 Gross amounts recognized 1,079 1,215 903 1,254 Gross amounts offset in the consolidated balance sheets (1) 489 815 637 1,054 Net amounts presented in the consolidated balance sheets 590 400 266 200 Gross amounts not offset in the consolidated balance sheets: Financial instruments 5 8 50 — Cash collateral received/posted — — 42 29 Net amounts $ 585 $ 392 $ 174 $ 171 ________ (1) At September 30, 2015 , gross amounts of derivative assets and liabilities offset in the consolidated balance sheets presented above include cash collateral received of $127 million and cash collateral posted of $278 million . At December 31, 2014 , gross amounts of derivative assets and liabilities offset in the consolidated balance sheets presented above include cash collateral received of $111 million and cash collateral posted of $354 million .

Fair Value Measurements (Tables

Fair Value Measurements (Tables)	9 Months Ended
	Sep. 30, 2015
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, 2015 and December 31, 2014 : September 30, 2015 December 31, 2014 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 $ 106 $ — $ — $ 106 $ 106 $ — $ — $ 106 Securities available for sale: U.S. Treasury securities $ 182 $ — $ — $ 182 $ 176 $ — $ — $ 176 Federal agency securities — 226 — 226 — 235 — 235 Obligations of states and political subdivisions — 1 — 1 — 2 — 2 Mortgage-backed securities (MBS): Residential agency — 15,820 — 15,820 — 16,038 — 16,038 Residential non-agency — — 6 6 — — 8 8 Commercial agency — 2,414 — 2,414 — 1,964 — 1,964 Commercial non-agency — 1,410 — 1,410 — 1,494 — 1,494 Corporate and other debt securities — 1,759 3 1,762 — 1,987 3 1,990 Equity securities (1) 212 — — 212 146 — — 146 Total securities available for sale $ 394 $ 21,630 $ 9 $ 22,033 $ 322 $ 21,720 $ 11 $ 22,053 Mortgage loans held for sale $ — $ 421 $ — $ 421 $ — $ 440 $ — $ 440 Residential mortgage servicing rights $ — $ — $ 241 $ 241 $ — $ — $ 257 $ 257 Derivative assets: Interest rate swaps $ — $ 865 $ — $ 865 $ — $ 985 $ — $ 985 Interest rate options — 2 13 15 — 2 8 10 Interest rate futures and forward commitments — 10 — 10 — 3 — 3 Other contracts — 189 — 189 — 217 — 217 Total derivative assets $ — $ 1,066 $ 13 $ 1,079 $ — $ 1,207 $ 8 $ 1,215 Derivative liabilities: Interest rate swaps $ — $ 705 $ — $ 705 $ — $ 1,033 $ — $ 1,033 Interest rate options — 1 — 1 — 2 — 2 Interest rate futures and forward commitments — 14 — 14 — 8 — 8 Other contracts — 183 — 183 — 211 — 211 Total derivative liabilities $ — $ 903 $ — $ 903 $ — $ 1,254 $ — $ 1,254 Nonrecurring fair value measurements Loans held for sale $ — $ — $ 15 $ 15 $ — $ — $ 33 $ 33 Foreclosed property and other real estate — 36 14 50 — 41 8 49 _______ (1) Excludes Federal Reserve Bank and Federal Home Loan Bank Stock totaling $484 million and $197 million , respectively, at September 30, 2015 and $488 million and $39 million , respectively, at December 31, 2014 .
Rollforward For Assets And Liabilities Measured At Fair Value On A Recurring Basis With Level 3 Significant Unobservable Inputs	The following tables illustrate a rollforward 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, 2015 and 2014 . 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, 2015 and 2014 are not material. Three Months Ended September 30, 2015 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 $ 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 (2) — — — — (32 ) — — $ 13 Three Months Ended September 30, 2014 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 $ 9 — — — — — — — — $ 9 Corporate and other debt securities 2 — — 1 — — — — — 3 Total securities available for sale $ 11 — — 1 — — — — — $ 12 Residential mortgage servicing rights $ 276 (8 ) (1) — 9 — — — — — $ 277 Total derivatives, net $ 12 20 (1) — — — — (23 ) — — $ 9 Nine Months Ended September 30, 2015 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 $ 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 (3) — — — — (80 ) — — $ 13 Nine Months Ended September 30, 2014 Opening Balance January 1, 2014 Total Realized / Unrealized Gains or Losses Purchases Sales Issuances Settlements Transfers into Level 3 Transfers out of Level 3 Closing Balance September 30, 2014 Included in Earnings Included in Other Compre- hensive Income (Loss) (In millions) Level 3 Instruments Only Securities available for sale: Residential non-agency MBS $ 9 — — — — — — — — $ 9 Corporate and other debt securities 2 — — 4 — — (3 ) — — 3 Total securities available for sale $ 11 — — 4 — — (3 ) — — $ 12 Residential mortgage servicing rights $ 297 (44 ) (1) — 24 — — — — — $ 277 Total derivatives, net $ 5 70 (1) — — — — (66 ) — — $ 9 _________ (1) Included in mortgage income. (2) Approximately $1 million was included in capital markets fee income and other and $31 million was included in mortgage income. (3) 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 2015 2014 2015 2014 (In millions) Loans held for sale $ (5 ) $ (11 ) $ (16 ) $ (34 ) Foreclosed property and other real estate (9 ) (4 ) (56 ) (18 )
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, 2015 and December 31, 2014 . 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, 2015 and December 31, 2014 are included. Following the tables are a description of the valuation technique and the sensitivity of the technique to changes in the significant unobservable input. September 30, 2015 Level 3 Estimated Fair Value at September 30, 2015 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 $6 Discounted cash flow Spread to LIBOR 5.5% - 50.0% (14.7%) Weighted-average prepayment speed (CPR; percentage) 6.5% - 34.9% (13.4%) Probability of default 1.5% Loss severity 40.5% Corporate and other debt securities $3 Market comparable Evaluated quote on same issuer/comparable bond 100.0% Residential mortgage servicing rights (1) $241 Discounted cash flow Weighted-average prepayment speed (CPR; percentage) 11.4% - 12.5% (12.0%) Option-adjusted spread (percentage) 8.7% - 17.3% (10.0%) Derivative assets: Interest rate options $12 Interest rate lock commitments on the residential mortgage loans are valued using discounted cash flows Weighted-average prepayment speed (CPR; percentage) 11.4% - 12.5% (12.0%) Option-adjusted spread (percentage) 8.7% - 17.3% (10.0%) Pull-through 3.5% - 99.1% (86.8%) $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 $15 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) 12.8% - 96.2% (52.1%) Foreclosed property and other real estate $11 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% - 65.5% (44.4%) $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) 2.7% - 11.0% (8.7%) _________ (1) See Note 5 for additional disclosures related to assumptions used in the fair value calculation for residential mortgage servicing rights. December 31, 2014 Level 3 Estimated Fair Value at December 31, 2014 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 $8 Discounted cash flow Spread to LIBOR 5.4% - 49.9% (12.3%) Weighted-average prepayment speed (CPR; percentage) 6.3% - 15.0% (9.5%) Probability of default 1.4% Loss severity 37.4% Corporate and other debt securities $3 Market comparable Evaluated quote on same issuer/comparable bond 99.9% Residential mortgage servicing rights (1) $257 Discounted cash flow Weighted-average prepayment speed (CPR; percentage) 9.9% - 22.4% (12.0%) Option-adjusted spread (percentage) 7.7% - 11.3% (9.0%) Derivative assets: Interest rate options $8 Discounted cash flow Weighted-average prepayment speed (CPR; percentage) 9.9% - 22.4% (12.0%) Option-adjusted spread (percentage) 7.7% - 11.3% (9.0%) Pull-through 7.3% - 99.1% (87.8%) Nonrecurring fair value measurements: Loans held for sale $33 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) 8.3% - 90.9% (53.3%) 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) 3.7% - 73.0% (29.6%) _________ (1) See Note 7 to the consolidated financial statements of the Annual Report on Form 10-K for the year ended December 31, 2014 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, 2015 December 31, 2014 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 $ 421 $ 401 $ 20 $ 440 $ 421 $ 19 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 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, 2015 and 2014 . 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 2015 2014 2015 2014 (In millions) Net gains (losses) resulting from changes in fair value $ 8 $ (6 ) $ — $ 11
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, 2015 are as follows: September 30, 2015 Carrying Amount Estimated Fair Value (1) Level 1 Level 2 Level 3 (In millions) Financial assets: Cash and cash equivalents $ 5,008 $ 5,008 $ 5,008 $ — $ — Trading account securities 106 106 106 — — Securities held to maturity 2,001 2,048 1 2,047 — Securities available for sale 22,714 22,714 394 22,311 9 Loans held for sale 453 453 — 421 32 Loans (excluding leases), net of unearned income and allowance for loan losses (2)(3) 78,111 74,659 — — 74,659 Other interest-earning assets 93 93 — 93 — Derivative assets 1,079 1,079 — 1,066 13 Financial liabilities: Derivative liabilities 903 903 — 903 — Deposits 97,178 97,219 — 97,219 — Long-term borrowings 7,364 7,642 — 4,801 2,841 Loan commitments and letters of credit 103 478 — — 478 Indemnification obligation 201 197 — — 197 _________ (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, 2015 was $3.5 billion or 4.4 percent. (3) Excluded from this table is the lease carrying amount of $1.8 billion at September 30, 2015 . 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, 2014 are as follows: December 31, 2014 Carrying Amount Estimated Fair Value (1) Level 1 Level 2 Level 3 (In millions) Financial assets: Cash and cash equivalents $ 4,004 $ 4,004 $ 4,004 $ — $ — Trading account securities 106 106 106 — — Securities held to maturity 2,175 2,209 1 2,208 — Securities available for sale 22,580 22,580 322 22,247 11 Loans held for sale 541 541 — 440 101 Loans (excluding leases), net of unearned income and allowance for loan losses (2)(3) 74,482 70,114 — — 70,114 Other interest-earning assets 89 89 — 89 — Derivative assets 1,215 1,215 — 1,207 8 Financial liabilities: Derivative liabilities 1,254 1,254 — 1,254 — Deposits 94,200 94,186 — 94,186 — Short-term borrowings 2,253 2,253 — 2,253 — Long-term borrowings 3,462 3,871 — 3,504 367 Loan commitments and letters of credit 106 539 — — 539 Indemnification obligation 206 198 — — 198 _________ (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, 2014 was $4.4 billion or 5.9 percent. (3) Excluded from this table is the lease carrying amount of $1.7 billion at December 31, 2014 .

Business Segment Information (T

Business Segment Information (Tables)	9 Months Ended
	Sep. 30, 2015
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, 2015 Corporate Bank Consumer Bank Wealth Management Other Continuing Operations Discontinued Operations Consolidated (In millions) Net interest income (loss) $ 287 $ 613 $ 41 $ (105 ) $ 836 $ — $ 836 Provision (credit) for loan losses 8 50 2 — 60 — 60 Non-interest income 103 279 104 11 497 — 497 Non-interest expense 151 600 108 36 895 6 901 Income (loss) before income taxes 231 242 35 (130 ) 378 (6 ) 372 Income tax expense (benefit) 88 92 13 (77 ) 116 (2 ) 114 Net income (loss) $ 143 $ 150 $ 22 $ (53 ) $ 262 $ (4 ) $ 258 Average assets $ 46,671 $ 38,548 $ 2,917 $ 34,784 $ 122,920 $ — $ 122,920 Three Months Ended September 30, 2014 Corporate Bank Consumer Bank Wealth Management Other Continuing Operations Discontinued Operations Consolidated (In millions) Net interest income (loss) $ 283 $ 615 $ 44 $ (121 ) $ 821 $ — $ 821 Provision (credit) for loan losses 3 72 — (51 ) 24 — 24 Non-interest income 95 287 90 25 497 19 516 Non-interest expense 133 575 100 18 826 14 840 Income (loss) before income taxes 242 255 34 (63 ) 468 5 473 Income tax expense (benefit) 92 97 13 (51 ) 151 2 153 Net income (loss) $ 150 $ 158 $ 21 $ (12 ) $ 317 $ 3 $ 320 Average assets $ 43,573 $ 38,357 $ 2,933 $ 33,806 $ 118,669 $ — $ 118,669 Nine Months Ended September 30, 2015 Corporate Bank Consumer Bank Wealth Management Other Continuing Operations Discontinued Operations Consolidated (In millions) Net interest income (loss) $ 850 $ 1,820 $ 125 $ (324 ) $ 2,471 $ — $ 2,471 Provision (credit) for loan losses 2 151 7 12 172 — 172 Non-interest income 291 830 301 135 1,557 — 1,557 Non-interest expense 458 1,804 318 154 2,734 16 2,750 Income (loss) before income taxes 681 695 101 (355 ) 1,122 (16 ) 1,106 Income tax expense (benefit) 259 264 38 (226 ) 335 (6 ) 329 Net income (loss) $ 422 $ 431 $ 63 $ (129 ) $ 787 $ (10 ) $ 777 Average assets $ 45,908 $ 38,240 $ 2,906 $ 34,408 $ 121,462 $ — $ 121,462 Nine Months Ended September 30, 2014 Corporate Bank Consumer Bank Wealth Management Other Continuing Operations Discontinued Operations Consolidated (In millions) Net interest income (loss) $ 853 $ 1,841 $ 133 $ (367 ) $ 2,460 $ — $ 2,460 Provision (credit) for loan losses 4 219 1 (163 ) 61 — 61 Non-interest income 243 848 273 65 1,429 19 1,448 Non-interest expense 400 1,721 300 42 2,463 (7 ) 2,456 Income (loss) before income taxes 692 749 105 (181 ) 1,365 26 1,391 Income tax expense (benefit) 264 284 40 (138 ) 450 10 460 Net income $ 428 $ 465 $ 65 $ (43 ) $ 915 $ 16 $ 931 Average assets $ 43,282 $ 38,449 $ 2,954 $ 33,407 $ 118,092 $ — $ 118,092

Commitments, Contingencies an38

Commitments, Contingencies and Guarantees (Tables)	9 Months Ended
	Sep. 30, 2015
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, 2015 December 31, 2014 (In millions) Unused commitments to extend credit $ 45,595 $ 43,724 Standby letters of credit 1,467 1,697 Commercial letters of credit 40 71 Liabilities associated with standby letters of credit 38 40 Assets associated with standby letters of credit 39 40 Reserve for unfunded credit commitments 64 65

Basis of Presentation (Narrativ

Basis of Presentation (Narrative) (Details) - USD ($) $ in Millions	9 Months Ended
	Sep. 30, 2015	Sep. 30, 2014	Dec. 31, 2014
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Cumulative effect adjustment to other interest-earning assets	$ 93		$ 89
Cumulative effect adjustment to other assets	6,693		6,013
Low Income Housing Tax Credit Investments [Member]
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Equity Investments	918		818
Cumulative effect of adopting ASU 2014-01 [Member]
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Cumulative effect adjustment to other interest-earning assets			22
Cumulative effect adjustment to other assets			138
Amortization recognized for low income housing tax credits associated with adoption of ASU 2014-01	77	$ 67
Tax credits recognized for low income housing tax credits associated with adoption of ASU 2014-01	87	78
Other tax benefits recognized for low income housing tax credits associated with adoption of ASU 2014-01	$ 19	$ 17
Equity [Member] | Cumulative effect of adopting ASU 2014-01 [Member]
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Cumulative effect adjustment to retained earnings			$ 116

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, 2015	Sep. 30, 2014	Sep. 30, 2015	Sep. 30, 2014
Non-interest income:
Insurance Proceeds		$ 90
Total non-interest income		497	$ 497	$ 1,557	$ 1,429
Non-interest expense:
Other		258	205	835	621
Total non-interest expense		895	826	2,734	2,463
Income (loss) from discontinued operations before income taxes		(6)	5	(16)	26
Income tax expense (benefit)		(2)	2	(6)	10
Income (loss) from discontinued operations, net of tax		$ (4)	$ 3	$ (10)	$ 16
Earnings (loss) per common share from discontinued operations:
Basic (in dollars per share)	[1]	$ 0	$ 0	$ (0.01)	$ 0.01
Diluted (in dollars per share)	[1]	$ 0	$ 0	$ (0.01)	$ 0.01
Discontinued Operations [Member]
Non-interest income:
Insurance Proceeds		$ 0	$ 19	$ 0	$ 19
Total non-interest income		0	19	0	19
Non-interest expense:
Professional and legal expenses		7	14	16	(8)
Other		(1)	0	0	1
Total non-interest expense		6	14	16	(7)
Income (loss) from discontinued operations before income taxes		(6)	5	(16)	26
Income tax expense (benefit)		(2)	2	(6)	10
Income (loss) from discontinued operations, net of tax		$ (4)	$ 3	$ (10)	$ 16
Earnings (loss) per common share from discontinued operations:
Basic (in dollars per share)		$ 0	$ 0	$ (0.01)	$ 0.01
Diluted (in dollars per share)		$ 0	$ 0	$ (0.01)	$ 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, 2015	Dec. 31, 2014
Summary of Investments, Other than Investments in Related Parties, Reportable Data [Line Items]
Held To Maturity Amortized Cost Basis		$ 2,081	$ 2,265
Held To Maturity Securities Gross Unrealized Gains	[1]	0	0
Held To Maturity Securities Gross Unrealized Losses	[1]	(80)	(90)
Held-to-maturity Securities		2,001	2,175
Held-to-maturity Securities, Accumulated Unrecognized Holding Gain		47	41
Held-to-maturity Securities, Accumulated Unrecognized Holding Loss		0	(7)
Securities held to maturity, estimated fair value		2,048	2,209
Amortized Cost - Securities available for sale		22,490	22,296
Available-for-sale Securities, Accumulated Gross Unrealized Gain, before Tax		318	362
Available-for-sale Securities, Accumulated Gross Unrealized Loss, before Tax		(94)	(78)
Available-for-sale securities, net carrying value		22,714	22,580
Securities available for sale		22,714	22,580
Federal Agency Securities [Member]
Summary of Investments, Other than Investments in Related Parties, Reportable Data [Line Items]
Held To Maturity Amortized Cost Basis		350	350
Held To Maturity Securities Gross Unrealized Gains	[1]	0	0
Held To Maturity Securities Gross Unrealized Losses	[1]	(11)	(12)
Held-to-maturity Securities		339	338
Held-to-maturity Securities, Accumulated Unrecognized Holding Gain		11	6
Held-to-maturity Securities, Accumulated Unrecognized Holding Loss		0	0
Securities held to maturity, estimated fair value		350	344
Amortized Cost - Securities available for sale		222	233
Available-for-sale Securities, Accumulated Gross Unrealized Gain, before Tax		4	2
Available-for-sale Securities, Accumulated Gross Unrealized Loss, before Tax		0	0
Available-for-sale securities, net carrying value		226	235
Securities available for sale		226	235
Residential Agency [Member]
Summary of Investments, Other than Investments in Related Parties, Reportable Data [Line Items]
Held To Maturity Amortized Cost Basis		1,540	1,698
Held To Maturity Securities Gross Unrealized Gains	[1]	0	0
Held To Maturity Securities Gross Unrealized Losses	[1]	(64)	(71)
Held-to-maturity Securities		1,476	1,627
Held-to-maturity Securities, Accumulated Unrecognized Holding Gain		36	35
Held-to-maturity Securities, Accumulated Unrecognized Holding Loss		0	(1)
Securities held to maturity, estimated fair value		1,512	1,661
Amortized Cost - Securities available for sale		15,613	15,788
Available-for-sale Securities, Accumulated Gross Unrealized Gain, before Tax		238	283
Available-for-sale Securities, Accumulated Gross Unrealized Loss, before Tax		(31)	(33)
Available-for-sale securities, net carrying value		15,820	16,038
Securities available for sale		15,820	16,038
Residential Non Agency [Member]
Summary of Investments, Other than Investments in Related Parties, Reportable Data [Line Items]
Amortized Cost - Securities available for sale		6	7
Available-for-sale Securities, Accumulated Gross Unrealized Gain, before Tax		0	1
Available-for-sale Securities, Accumulated Gross Unrealized Loss, before Tax		0	0
Available-for-sale securities, net carrying value		6	8
Securities available for sale		6	8
Commercial Agency [Member]
Summary of Investments, Other than Investments in Related Parties, Reportable Data [Line Items]
Held To Maturity Amortized Cost Basis		190	216
Held To Maturity Securities Gross Unrealized Gains	[1]	0	0
Held To Maturity Securities Gross Unrealized Losses	[1]	(5)	(7)
Held-to-maturity Securities		185	209
Held-to-maturity Securities, Accumulated Unrecognized Holding Gain		0	0
Held-to-maturity Securities, Accumulated Unrecognized Holding Loss		0	(6)
Securities held to maturity, estimated fair value		185	203
Amortized Cost - Securities available for sale		2,379	1,959
Available-for-sale Securities, Accumulated Gross Unrealized Gain, before Tax		36	14
Available-for-sale Securities, Accumulated Gross Unrealized Loss, before Tax		(1)	(9)
Available-for-sale securities, net carrying value		2,414	1,964
Securities available for sale		2,414	1,964
Commercial Non Agency [Member]
Summary of Investments, Other than Investments in Related Parties, Reportable Data [Line Items]
Amortized Cost - Securities available for sale		1,404	1,489
Available-for-sale Securities, Accumulated Gross Unrealized Gain, before Tax		13	14
Available-for-sale Securities, Accumulated Gross Unrealized Loss, before Tax		(7)	(9)
Available-for-sale securities, net carrying value		1,410	1,494
Securities available for sale		1,410	1,494
Corporate and other debt securities [Member]
Summary of Investments, Other than Investments in Related Parties, Reportable Data [Line Items]
Amortized Cost - Securities available for sale		1,798	1,980
Available-for-sale Securities, Accumulated Gross Unrealized Gain, before Tax		17	36
Available-for-sale Securities, Accumulated Gross Unrealized Loss, before Tax		(53)	(26)
Available-for-sale securities, net carrying value		1,762	1,990
Securities available for sale		1,762	1,990
Obligations of States and Political Subdivisions [Member]
Summary of Investments, Other than Investments in Related Parties, Reportable Data [Line Items]
Amortized Cost - Securities available for sale		1	2
Available-for-sale Securities, Accumulated Gross Unrealized Gain, before Tax		0	0
Available-for-sale Securities, Accumulated Gross Unrealized Loss, before Tax		0	0
Available-for-sale securities, net carrying value		1	2
Securities available for sale		1	2
US Treasury Securities [Member]
Summary of Investments, Other than Investments in Related Parties, Reportable Data [Line Items]
Held To Maturity Amortized Cost Basis		1	1
Held To Maturity Securities Gross Unrealized Gains	[1]	0	0
Held To Maturity Securities Gross Unrealized Losses	[1]	0	0
Held-to-maturity Securities		1	1
Held-to-maturity Securities, Accumulated Unrecognized Holding Gain		0	0
Held-to-maturity Securities, Accumulated Unrecognized Holding Loss		0	0
Securities held to maturity, estimated fair value		1	1
Amortized Cost - Securities available for sale		180	176
Available-for-sale Securities, Accumulated Gross Unrealized Gain, before Tax		2	0
Available-for-sale Securities, Accumulated Gross Unrealized Loss, before Tax		0	0
Available-for-sale securities, net carrying value		182	176
Securities available for sale		182	176
Equity Securities [Member]
Summary of Investments, Other than Investments in Related Parties, Reportable Data [Line Items]
Amortized Cost - Securities available for sale		887	662
Available-for-sale Securities, Accumulated Gross Unrealized Gain, before Tax		8	12
Available-for-sale Securities, Accumulated Gross Unrealized Loss, before Tax		(2)	(1)
Available-for-sale securities, net carrying value		893	673
Securities available for sale		$ 893	$ 673
[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 Amort42

Securities (Schedule Of Amortized Cost Of Equity Securities Related To Federal Reserve Bank Stock And Federal Home Loan Bank Stock) (Details) - USD ($) $ in Millions	Sep. 30, 2015	Dec. 31, 2014
Investments, Debt and Equity Securities [Abstract]
Federal Reserve Bank Stock	$ 484	$ 488
Federal Home Loan Bank Stock	$ 197	$ 39

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, 2015	Dec. 31, 2014
Held To Maturity Amortized Cost Basis	$ 2,081	$ 2,265
Securities held to maturity, estimated fair value	2,048	2,209
Amortized Cost - Securities available for sale	22,490	22,296
Fair Value - Securities available for sale	22,714	22,580
Held-to-maturity Securities [Member]
Held-to-maturity, Debt Maturities, within One Year, Net Carrying Amount	1
Held-to-maturity, Debt Maturities, Next Twelve Months, Fair Value	1
Held-to-maturity Securities, Debt Maturities, after One Through Five Years, Net Carrying Amount	350
Held-to-maturity Securities, Debt Maturities, Year Two Through Five, Fair Value	350
Available-for-sale Securities [Member]
Available-for-sale Securities, Debt Maturities, Next Twelve Months, Amortized Cost Basis	95
Available-for-sale Securities, Debt Maturities, Next Twelve Months, Fair Value	95
Available-for-sale Securities, Debt Maturities, Year Two Through Five, Amortized Cost Basis	835
Available-for-sale Securities, Debt Maturities, Year Two Through Five, Fair Value	842
Available-for-sale Securities, Debt Maturities, Year Six Through Ten, Amortized Cost Basis	968
Available-for-sale Securities, Debt Maturities, Year Six Through Ten, Fair Value	952
Available-for-sale Securities, Debt Maturities, after Ten Years, Amortized Cost Basis	303
Available-for-sale Securities, Debt Maturities, after Ten Years, Fair Value	282
Residential Non Agency [Member]
Amortized Cost - Securities available for sale	6	7
Fair Value - Securities available for sale	6	8
Commercial Agency [Member]
Held To Maturity Amortized Cost Basis	190	216
Securities held to maturity, estimated fair value	185	203
Amortized Cost - Securities available for sale	2,379	1,959
Fair Value - Securities available for sale	2,414	1,964
Commercial Non Agency [Member]
Amortized Cost - Securities available for sale	1,404	1,489
Fair Value - Securities available for sale	1,410	1,494
Residential Agency [Member]
Held To Maturity Amortized Cost Basis	1,540	1,698
Securities held to maturity, estimated fair value	1,512	1,661
Amortized Cost - Securities available for sale	15,613	15,788
Fair Value - Securities available for sale	15,820	16,038
Equity Securities [Member]
Amortized Cost - Securities available for sale	887	662
Fair Value - Securities available for sale	$ 893	$ 673

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, 2015	Dec. 31, 2014
Unrealized Loss And Fair Value On Securities [Line Items]
Held-to-maturity Securities, Continuous Unrealized Loss Position, Less than Twelve Months, Estimated Fair Value	$ 223	$ 0
Held-to-maturity Securities, Continuous Unrealized Loss Position, Less than 12 Months, Accumulated Loss	(3)	0
Held-to-maturity Securities, Continuous Unrealized Loss Position, Twelve Months or Longer, Estimated Fair Value	1,358	2,206
Held-to-maturity Securities, Continuous Unrealized Loss Position, 12 Months or Longer, Accumulated Loss	(30)	(56)
Held-to-maturity Securities, Continuous Unrealized Loss Position, Estimated Fair Value	1,581	2,206
Held-to-maturity Securities, Continuous Unrealized Loss Position, Accumulated Loss	(33)	(56)
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than Twelve Months, Fair Value	5,150	2,358
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than 12 Months, Accumulated Loss	(54)	(17)
Available-for-sale Securities, Continuous Unrealized Loss Position, Twelve Months or Longer, Fair Value	1,535	3,864
Available-for-sale Securities, Continuous Unrealized Loss Position, 12 Months or Longer, Accumulated Loss	(40)	(61)
Available-for-sale Securities, Continuous Unrealized Loss Position, Fair Value	6,685	6,222
Available-for-sale Securities, Continuous Unrealized Loss Position, Accumulated Loss	(94)	(78)
US Treasury Securities [Member]
Unrealized Loss And Fair Value On Securities [Line Items]
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than Twelve Months, Fair Value	4	74
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than 12 Months, Accumulated Loss	0	0
Available-for-sale Securities, Continuous Unrealized Loss Position, Twelve Months or Longer, Fair Value	9	3
Available-for-sale Securities, Continuous Unrealized Loss Position, 12 Months or Longer, Accumulated Loss	0	0
Available-for-sale Securities, Continuous Unrealized Loss Position, Fair Value	13	77
Available-for-sale Securities, Continuous Unrealized Loss Position, Accumulated Loss	0	0
Federal Agency Securities [Member]
Unrealized Loss And Fair Value On Securities [Line Items]
Held-to-maturity Securities, Continuous Unrealized Loss Position, Less than Twelve Months, Estimated Fair Value		0
Held-to-maturity Securities, Continuous Unrealized Loss Position, Less than 12 Months, Accumulated Loss		0
Held-to-maturity Securities, Continuous Unrealized Loss Position, Twelve Months or Longer, Estimated Fair Value		344
Held-to-maturity Securities, Continuous Unrealized Loss Position, 12 Months or Longer, Accumulated Loss		(6)
Held-to-maturity Securities, Continuous Unrealized Loss Position, Estimated Fair Value		344
Held-to-maturity Securities, Continuous Unrealized Loss Position, Accumulated Loss		(6)
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than Twelve Months, Fair Value	0	0
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than 12 Months, Accumulated Loss	0	0
Available-for-sale Securities, Continuous Unrealized Loss Position, Twelve Months or Longer, Fair Value	3	3
Available-for-sale Securities, Continuous Unrealized Loss Position, 12 Months or Longer, Accumulated Loss	0	0
Available-for-sale Securities, Continuous Unrealized Loss Position, Fair Value	3	3
Available-for-sale Securities, Continuous Unrealized Loss Position, Accumulated Loss	0	0
Residential Agency [Member]
Unrealized Loss And Fair Value On Securities [Line Items]
Held-to-maturity Securities, Continuous Unrealized Loss Position, Less than Twelve Months, Estimated Fair Value	223	0
Held-to-maturity Securities, Continuous Unrealized Loss Position, Less than 12 Months, Accumulated Loss	(3)	0
Held-to-maturity Securities, Continuous Unrealized Loss Position, Twelve Months or Longer, Estimated Fair Value	1,173	1,659
Held-to-maturity Securities, Continuous Unrealized Loss Position, 12 Months or Longer, Accumulated Loss	(25)	(37)
Held-to-maturity Securities, Continuous Unrealized Loss Position, Estimated Fair Value	1,396	1,659
Held-to-maturity Securities, Continuous Unrealized Loss Position, Accumulated Loss	(28)	(37)
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than Twelve Months, Fair Value	3,658	1,178
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than 12 Months, Accumulated Loss	(20)	(5)
Available-for-sale Securities, Continuous Unrealized Loss Position, Twelve Months or Longer, Fair Value	816	2,587
Available-for-sale Securities, Continuous Unrealized Loss Position, 12 Months or Longer, Accumulated Loss	(11)	(28)
Available-for-sale Securities, Continuous Unrealized Loss Position, Fair Value	4,474	3,765
Available-for-sale Securities, Continuous Unrealized Loss Position, Accumulated Loss	(31)	(33)
Commercial Agency [Member]
Unrealized Loss And Fair Value On Securities [Line Items]
Held-to-maturity Securities, Continuous Unrealized Loss Position, Less than Twelve Months, Estimated Fair Value	0	0
Held-to-maturity Securities, Continuous Unrealized Loss Position, Less than 12 Months, Accumulated Loss	0	0
Held-to-maturity Securities, Continuous Unrealized Loss Position, Twelve Months or Longer, Estimated Fair Value	185	203
Held-to-maturity Securities, Continuous Unrealized Loss Position, 12 Months or Longer, Accumulated Loss	(5)	(13)
Held-to-maturity Securities, Continuous Unrealized Loss Position, Estimated Fair Value	185	203
Held-to-maturity Securities, Continuous Unrealized Loss Position, Accumulated Loss	(5)	(13)
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than Twelve Months, Fair Value	348	464
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than 12 Months, Accumulated Loss	(1)	(4)
Available-for-sale Securities, Continuous Unrealized Loss Position, Twelve Months or Longer, Fair Value	160	316
Available-for-sale Securities, Continuous Unrealized Loss Position, 12 Months or Longer, Accumulated Loss	0	(5)
Available-for-sale Securities, Continuous Unrealized Loss Position, Fair Value	508	780
Available-for-sale Securities, Continuous Unrealized Loss Position, Accumulated Loss	(1)	(9)
Commercial Non Agency [Member]
Unrealized Loss And Fair Value On Securities [Line Items]
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than Twelve Months, Fair Value	432	242
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than 12 Months, Accumulated Loss	(4)	(1)
Available-for-sale Securities, Continuous Unrealized Loss Position, Twelve Months or Longer, Fair Value	248	500
Available-for-sale Securities, Continuous Unrealized Loss Position, 12 Months or Longer, Accumulated Loss	(3)	(8)
Available-for-sale Securities, Continuous Unrealized Loss Position, Fair Value	680	742
Available-for-sale Securities, Continuous Unrealized Loss Position, Accumulated Loss	(7)	(9)
All Other Securities [Member]
Unrealized Loss And Fair Value On Securities [Line Items]
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than Twelve Months, Fair Value	708	400
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than 12 Months, Accumulated Loss	(29)	(7)
Available-for-sale Securities, Continuous Unrealized Loss Position, Twelve Months or Longer, Fair Value	299	455
Available-for-sale Securities, Continuous Unrealized Loss Position, 12 Months or Longer, Accumulated Loss	(26)	(20)
Available-for-sale Securities, Continuous Unrealized Loss Position, Fair Value	1,007	855
Available-for-sale Securities, Continuous Unrealized Loss Position, Accumulated Loss	$ (55)	$ (27)

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, 2015	Sep. 30, 2014	Sep. 30, 2015	Sep. 30, 2014
Investments, Debt and Equity Securities [Abstract]
Gross realized gains	$ 15	$ 9	$ 29	$ 25
Gross realized losses	(2)	(2)	(5)	(8)
Other than Temporary Impairment Losses, Investments, Portion Recognized in Earnings, Net	(6)	0	(6)	(2)
Net securities gains (losses)	$ 7	$ 7	$ 18	$ 15

Securities (Narrative) (Details

Securities (Narrative) (Details) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2015USD ($)security	Sep. 30, 2014USD ($)	Sep. 30, 2015USD ($)security	Sep. 30, 2014USD ($)	Dec. 31, 2014USD ($)security
Schedule of Available-for-sale Securities [Line Items]
Securities pledged to secure public funds, trust deposits and borrowing arrangements	$ 13,400		$ 13,400		$ 12,100
Securities in unrealized loss position number | security	843		843		827
Other than Temporary Impairment Losses, Investments, Portion Recognized in Earnings, Net	$ 6	$ 0	$ 6	$ 2
Securities Pledged as Collateral [Member] | US Treasury Securities [Member]
Schedule of Available-for-sale Securities [Line Items]
Financial Instruments Owned and Pledged as Collateral, Amount Eligible to be Repledged by Counterparty	$ 50		$ 50		$ 0

Loans and the Allowance for C47

Loans and the Allowance for Credit Losses (Schedule Of Loan Portfolio, Net Of Unearned Income) (Details) - USD ($) $ in Millions	Sep. 30, 2015	Dec. 31, 2014	Sep. 30, 2014
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans, net of unearned income	$ 81,063	$ 77,307	$ 76,607
Commercial And Industrial [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans, net of unearned income	35,906	32,732
Commercial Real Estate Mortgage - Owner-Occupied [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans, net of unearned income	7,741	8,263
Commercial Real Estate Construction - Owner-Occupied [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans, net of unearned income	406	407
Commercial Portfolio Segment [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans, net of unearned income	44,053	41,402	40,873
Commercial Investor Real Estate Mortgage [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans, net of unearned income	4,386	4,680
Commercial Investor Real Estate Construction [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans, net of unearned income	2,525	2,133
Total Investor Real Estate [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans, net of unearned income	6,911	6,813	6,818
Residential First Mortgage [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans, net of unearned income	12,730	12,315
Home Equity [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans, net of unearned income	10,947	10,932
Indirect-vehicles [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans, net of unearned income	3,895	3,642
Indirect-other consumer [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans, net of unearned income	490	206
Consumer Credit Card Financing Receivable [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans, net of unearned income	1,016	1,009
Consumer Other Financing Receivable [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans, net of unearned income	1,021	988
Consumer Portfolio Segment [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans, net of unearned income	$ 30,099	$ 29,092	$ 28,916

Loans and the Allowance for C48

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, 2015	Sep. 30, 2014	Sep. 30, 2015	Sep. 30, 2014	Dec. 31, 2014
Allowance for Loan and Lease Losses [Roll Forward]
Allowance for loan losses, beginning of period	$ 1,115	$ 1,229	$ 1,103	$ 1,341
Provision (credit) for loan and lease losses	60	24	172	61
Loan losses:
Charge-offs	(95)	(120)	(282)	(354)
Recoveries	35	45	122	130
Net loan losses	(60)	(75)	(160)	(224)
Total allowance for loan losses	1,115	1,178	1,115	1,178
Reserve For Unfunded Credit Commitments [Roll Forward]
Reserve For Unfunded Credit Commitments, beginning of period	64	89	65	78
Provision (credit) for unfunded credit losses	0	(24)	(1)	(13)
Reserve For Unfunded Credit Commitments, end of period	64	65	64	65
Allowance for Credit Losses, end of period	1,179	1,243	1,179	1,243
Portion of ending allowance for loan losses:
Allowance Individually Evaluated for Impairment	284	363	284	363
Allowance Collectively Evaluated for Impairment	831	815	831	815
Total allowance for loan losses	1,115	1,178	1,115	1,178
Portion of loan portfolio ending balance:
Loans Individually Evaluated for Impairment	1,782	2,073	1,782	2,073
Loans Collectively Evaluated for Impairment	79,281	74,534	79,281	74,534
Loans, net of unearned income	81,063	76,607	81,063	76,607	$ 77,307
Commercial Portfolio Segment [Member]
Allowance for Loan and Lease Losses [Roll Forward]
Allowance for loan losses, beginning of period	740	705	654	711
Provision (credit) for loan and lease losses	32	18	142	62
Loan losses:
Charge-offs	(33)	(49)	(92)	(130)
Recoveries	14	21	49	52
Net loan losses	(19)	(28)	(43)	(78)
Total allowance for loan losses	753	695	753	695
Reserve For Unfunded Credit Commitments [Roll Forward]
Reserve For Unfunded Credit Commitments, beginning of period	59	74	57	63
Provision (credit) for unfunded credit losses	0	(21)	2	(10)
Reserve For Unfunded Credit Commitments, end of period	59	53	59	53
Allowance for Credit Losses, end of period	812	748	812	748
Portion of ending allowance for loan losses:
Allowance Individually Evaluated for Impairment	187	204	187	204
Allowance Collectively Evaluated for Impairment	566	491	566	491
Total allowance for loan losses	753	695	753	695
Portion of loan portfolio ending balance:
Loans Individually Evaluated for Impairment	744	758	744	758
Loans Collectively Evaluated for Impairment	43,309	40,115	43,309	40,115
Loans, net of unearned income	44,053	40,873	44,053	40,873	41,402
Total Investor Real Estate [Member]
Allowance for Loan and Lease Losses [Roll Forward]
Allowance for loan losses, beginning of period	123	190	150	236
Provision (credit) for loan and lease losses	(16)	(23)	(44)	(68)
Loan losses:
Charge-offs	(3)	(5)	(15)	(21)
Recoveries	5	6	18	21
Net loan losses	2	1	3	0
Total allowance for loan losses	109	168	109	168
Reserve For Unfunded Credit Commitments [Roll Forward]
Reserve For Unfunded Credit Commitments, beginning of period	5	12	8	12
Provision (credit) for unfunded credit losses	0	(3)	(3)	(3)
Reserve For Unfunded Credit Commitments, end of period	5	9	5	9
Allowance for Credit Losses, end of period	114	177	114	177
Portion of ending allowance for loan losses:
Allowance Individually Evaluated for Impairment	27	80	27	80
Allowance Collectively Evaluated for Impairment	82	88	82	88
Total allowance for loan losses	109	168	109	168
Portion of loan portfolio ending balance:
Loans Individually Evaluated for Impairment	192	466	192	466
Loans Collectively Evaluated for Impairment	6,719	6,352	6,719	6,352
Loans, net of unearned income	6,911	6,818	6,911	6,818	6,813
Consumer Portfolio Segment [Member]
Allowance for Loan and Lease Losses [Roll Forward]
Allowance for loan losses, beginning of period	252	334	299	394
Provision (credit) for loan and lease losses	44	29	74	67
Loan losses:
Charge-offs	(59)	(66)	(175)	(203)
Recoveries	16	18	55	57
Net loan losses	(43)	(48)	(120)	(146)
Total allowance for loan losses	253	315	253	315
Reserve For Unfunded Credit Commitments [Roll Forward]
Reserve For Unfunded Credit Commitments, beginning of period	0	3	0	3
Provision (credit) for unfunded credit losses	0	0	0	0
Reserve For Unfunded Credit Commitments, end of period	0	3	0	3
Allowance for Credit Losses, end of period	253	318	253	318
Portion of ending allowance for loan losses:
Allowance Individually Evaluated for Impairment	70	79	70	79
Allowance Collectively Evaluated for Impairment	183	236	183	236
Total allowance for loan losses	253	315	253	315
Portion of loan portfolio ending balance:
Loans Individually Evaluated for Impairment	846	849	846	849
Loans Collectively Evaluated for Impairment	29,253	28,067	29,253	28,067
Loans, net of unearned income	$ 30,099	$ 28,916	$ 30,099	$ 28,916	$ 29,092

Loans and the Allowance for C49

Loans and the Allowance for Credit Losses (Credit Quality Indicators) (Details) - USD ($) $ in Millions	Sep. 30, 2015	Dec. 31, 2014	Sep. 30, 2014
Financing Receivable, Recorded Investment [Line Items]
Loans, net of unearned income	$ 81,063	$ 77,307	$ 76,607
Commercial And Industrial [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans, net of unearned income	35,906	32,732
Commercial Real Estate Mortgage - Owner-Occupied [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans, net of unearned income	7,741	8,263
Commercial Real Estate Construction - Owner-Occupied [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans, net of unearned income	406	407
Commercial Portfolio Segment [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans, net of unearned income	44,053	41,402	40,873
Commercial Investor Real Estate Mortgage [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans, net of unearned income	4,386	4,680
Commercial Investor Real Estate Construction [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans, net of unearned income	2,525	2,133
Total Investor Real Estate [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans, net of unearned income	6,911	6,813	6,818
Residential First Mortgage [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans, net of unearned income	12,730	12,315
Home Equity [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans, net of unearned income	10,947	10,932
Indirect-vehicles [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans, net of unearned income	3,895	3,642
Indirect-other consumer [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans, net of unearned income	490	206
Consumer Credit Card Financing Receivable [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans, net of unearned income	1,016	1,009
Consumer Other Financing Receivable [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans, net of unearned income	1,021	988
Consumer Portfolio Segment [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans, net of unearned income	30,099	29,092	$ 28,916
Pass [Member] | Commercial And Industrial [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans, net of unearned income	33,972	31,492
Pass [Member] | Commercial Real Estate Mortgage - Owner-Occupied [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans, net of unearned income	6,872	7,425
Pass [Member] | Commercial Real Estate Construction - Owner-Occupied [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans, net of unearned income	369	387
Pass [Member] | Commercial Portfolio Segment [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans, net of unearned income	41,213	39,304
Pass [Member] | Commercial Investor Real Estate Mortgage [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans, net of unearned income	4,020	4,152
Pass [Member] | Commercial Investor Real Estate Construction [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans, net of unearned income	2,477	2,060
Pass [Member] | Total Investor Real Estate [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans, net of unearned income	6,497	6,212
Special Mention [Member] | Commercial And Industrial [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans, net of unearned income	878	626
Special Mention [Member] | Commercial Real Estate Mortgage - Owner-Occupied [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans, net of unearned income	347	315
Special Mention [Member] | Commercial Real Estate Construction - Owner-Occupied [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans, net of unearned income	21	9
Special Mention [Member] | Commercial Portfolio Segment [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans, net of unearned income	1,246	950
Special Mention [Member] | Commercial Investor Real Estate Mortgage [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans, net of unearned income	158	234
Special Mention [Member] | Commercial Investor Real Estate Construction [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans, net of unearned income	12	22
Special Mention [Member] | Total Investor Real Estate [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans, net of unearned income	170	256
Substandard [Member] | Commercial And Industrial [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans, net of unearned income	706	362
Substandard [Member] | Commercial Real Estate Mortgage - Owner-Occupied [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans, net of unearned income	289	285
Substandard [Member] | Commercial Real Estate Construction - Owner-Occupied [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans, net of unearned income	13	8
Substandard [Member] | Commercial Portfolio Segment [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans, net of unearned income	1,008	655
Substandard [Member] | Commercial Investor Real Estate Mortgage [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans, net of unearned income	169	171
Substandard [Member] | Commercial Investor Real Estate Construction [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans, net of unearned income	35	49
Substandard [Member] | Total Investor Real Estate [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans, net of unearned income	204	220
Accrual [Member] | Residential First Mortgage [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans, net of unearned income	12,663	12,206
Accrual [Member] | Home Equity [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans, net of unearned income	10,851	10,830
Accrual [Member] | Indirect-vehicles [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans, net of unearned income	3,895	3,642
Accrual [Member] | Indirect-other consumer [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans, net of unearned income	490	206
Accrual [Member] | Consumer Credit Card Financing Receivable [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans, net of unearned income	1,016	1,009
Accrual [Member] | Consumer Other Financing Receivable [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans, net of unearned income	1,021	988
Accrual [Member] | Consumer Portfolio Segment [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans, net of unearned income	29,936	28,881
Non Accrual [Member] | Commercial And Industrial [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans, net of unearned income	350	252
Non Accrual [Member] | Commercial Real Estate Mortgage - Owner-Occupied [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans, net of unearned income	233	238
Non Accrual [Member] | Commercial Real Estate Construction - Owner-Occupied [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans, net of unearned income	3	3
Non Accrual [Member] | Commercial Portfolio Segment [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans, net of unearned income	586	493
Non Accrual [Member] | Commercial Investor Real Estate Mortgage [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans, net of unearned income	39	123
Non Accrual [Member] | Commercial Investor Real Estate Construction [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans, net of unearned income	1	2
Non Accrual [Member] | Total Investor Real Estate [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans, net of unearned income	40	125
Non Accrual [Member] | Residential First Mortgage [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans, net of unearned income	67	109
Non Accrual [Member] | Home Equity [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans, net of unearned income	96	102
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] | Consumer Other Financing Receivable [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans, net of unearned income	0	0
Non Accrual [Member] | Consumer Portfolio Segment [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans, net of unearned income	$ 163	$ 211

Loans and the Allowance for C50

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, 2015	Dec. 31, 2014	Sep. 30, 2014
Financing Receivable, Recorded Investment, Past Due [Line Items]
30-59 DPD, Accrual Loans	$ 276	$ 291
60-89 DPD, Accrual Loans	123	144
90 plus DPD, Accrual Loans	320	347
Total 30 plus DPD, Accrual Loans	719	782
Total Accrual	80,274	76,478
Nonaccrual	789	829
Loans, net of unearned income	81,063	77,307	$ 76,607
Commercial And Industrial [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
30-59 DPD, Accrual Loans	11	16
60-89 DPD, Accrual Loans	5	7
90 plus DPD, Accrual Loans	7	7
Total 30 plus DPD, Accrual Loans	23	30
Total Accrual	35,556	32,480
Nonaccrual	350	252
Loans, net of unearned income	35,906	32,732
Commercial Real Estate Mortgage - Owner-Occupied [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
30-59 DPD, Accrual Loans	28	21
60-89 DPD, Accrual Loans	13	13
90 plus DPD, Accrual Loans	6	5
Total 30 plus DPD, Accrual Loans	47	39
Total Accrual	7,508	8,025
Nonaccrual	233	238
Loans, net of unearned income	7,741	8,263
Commercial Real Estate Construction - Owner-Occupied [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
30-59 DPD, Accrual Loans	1	1
60-89 DPD, Accrual Loans	0	0
90 plus DPD, Accrual Loans	0	0
Total 30 plus DPD, Accrual Loans	1	1
Total Accrual	403	404
Nonaccrual	3	3
Loans, net of unearned income	406	407
Commercial Portfolio Segment [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
30-59 DPD, Accrual Loans	40	38
60-89 DPD, Accrual Loans	18	20
90 plus DPD, Accrual Loans	13	12
Total 30 plus DPD, Accrual Loans	71	70
Total Accrual	43,467	40,909
Nonaccrual	586	493
Loans, net of unearned income	44,053	41,402	40,873
Commercial Investor Real Estate Mortgage [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
30-59 DPD, Accrual Loans	18	17
60-89 DPD, Accrual Loans	6	3
90 plus DPD, Accrual Loans	2	3
Total 30 plus DPD, Accrual Loans	26	23
Total Accrual	4,347	4,557
Nonaccrual	39	123
Loans, net of unearned income	4,386	4,680
Commercial Investor Real Estate Construction [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
30-59 DPD, Accrual Loans	1	0
60-89 DPD, Accrual Loans	0	0
90 plus DPD, Accrual Loans	0	0
Total 30 plus DPD, Accrual Loans	1	0
Total Accrual	2,524	2,131
Nonaccrual	1	2
Loans, net of unearned income	2,525	2,133
Total Investor Real Estate [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
30-59 DPD, Accrual Loans	19	17
60-89 DPD, Accrual Loans	6	3
90 plus DPD, Accrual Loans	2	3
Total 30 plus DPD, Accrual Loans	27	23
Total Accrual	6,871	6,688
Nonaccrual	40	125
Loans, net of unearned income	6,911	6,813	6,818
Residential First Mortgage [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
30-59 DPD, Accrual Loans	91	99
60-89 DPD, Accrual Loans	48	64
90 plus DPD, Accrual Loans	231	247
Total 30 plus DPD, Accrual Loans	370	410
Total Accrual	12,663	12,206
Nonaccrual	67	109
Loans, net of unearned income	12,730	12,315
Home Equity [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
30-59 DPD, Accrual Loans	67	73
60-89 DPD, Accrual Loans	31	38
90 plus DPD, Accrual Loans	51	63
Total 30 plus DPD, Accrual Loans	149	174
Total Accrual	10,851	10,830
Nonaccrual	96	102
Loans, net of unearned income	10,947	10,932
Indirect-vehicles [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
30-59 DPD, Accrual Loans	40	43
60-89 DPD, Accrual Loans	12	10
90 plus DPD, Accrual Loans	8	7
Total 30 plus DPD, Accrual Loans	60	60
Total Accrual	3,895	3,642
Nonaccrual	0	0
Loans, net of unearned income	3,895	3,642
Indirect-other consumer [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
30-59 DPD, Accrual Loans	1	0
60-89 DPD, Accrual Loans	1	0
90 plus DPD, Accrual Loans	0	0
Total 30 plus DPD, Accrual Loans	2	0
Total Accrual	490	206
Nonaccrual	0	0
Loans, net of unearned income	490	206
Consumer Credit Card Financing Receivable [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
30-59 DPD, Accrual Loans	6	8
60-89 DPD, Accrual Loans	5	5
90 plus DPD, Accrual Loans	11	12
Total 30 plus DPD, Accrual Loans	22	25
Total Accrual	1,016	1,009
Nonaccrual	0	0
Loans, net of unearned income	1,016	1,009
Consumer Other Financing Receivable [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
30-59 DPD, Accrual Loans	12	13
60-89 DPD, Accrual Loans	2	4
90 plus DPD, Accrual Loans	4	3
Total 30 plus DPD, Accrual Loans	18	20
Total Accrual	1,021	988
Nonaccrual	0	0
Loans, net of unearned income	1,021	988
Consumer Portfolio Segment [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
30-59 DPD, Accrual Loans	217	236
60-89 DPD, Accrual Loans	99	121
90 plus DPD, Accrual Loans	305	332
Total 30 plus DPD, Accrual Loans	621	689
Total Accrual	29,936	28,881
Nonaccrual	163	211
Loans, net of unearned income	$ 30,099	$ 29,092	$ 28,916

Loans and the Allowance for C51

Loans and the Allowance for Credit Losses (Impaired Financing Receivables) (Details) - USD ($) $ in Millions		3 Months Ended		9 Months Ended
		Sep. 30, 2015	Sep. 30, 2014	Sep. 30, 2015	Sep. 30, 2014	Dec. 31, 2014
Financing Receivable, Impaired [Line Items]
Impaired Financing Receivable, Unpaid Principal Balance	[1]	$ 1,900		$ 1,900		$ 2,191
Impaired Financing Receivable Chargeoffs And Payments Applied	[2]	118		118		176
Impaired Financing Receivable, Recorded Investment	[3]	1,782		1,782		2,015
Impaired Financing Receivable, with No Related Allowance, Recorded Investment	[3]	96		96		80
Impaired Financing Receivable, with Related Allowance, Recorded Investment	[3]	1,686		1,686		1,935
Impaired Financing Receivable, Related Allowance		$ 284		$ 284		$ 329
Impaired Financing Receivable, Coverage Percentage	[4]	21.20%		21.20%		23.00%
Impaired Financing Receivable, Average Recorded Investment		$ 1,774	$ 2,132	$ 1,875	$ 2,371
Impaired Financing Receivable, Interest Income Recognized		14	17	46	63
Commercial And Industrial [Member]
Financing Receivable, Impaired [Line Items]
Impaired Financing Receivable, Unpaid Principal Balance	[1]	446		446		$ 388
Impaired Financing Receivable Chargeoffs And Payments Applied	[2]	33		33		39
Impaired Financing Receivable, Recorded Investment	[3]	413		413		349
Impaired Financing Receivable, with No Related Allowance, Recorded Investment	[3]	42		42		11
Impaired Financing Receivable, with Related Allowance, Recorded Investment	[3]	371		371		338
Impaired Financing Receivable, Related Allowance		$ 116		$ 116		$ 100
Impaired Financing Receivable, Coverage Percentage	[4]	33.40%		33.40%		35.80%
Impaired Financing Receivable, Average Recorded Investment		$ 379	296	$ 378	382
Impaired Financing Receivable, Interest Income Recognized		1	2	4	7
Commercial Real Estate Mortgage - Owner-Occupied [Member]
Financing Receivable, Impaired [Line Items]
Impaired Financing Receivable, Unpaid Principal Balance	[1]	352		352		$ 429
Impaired Financing Receivable Chargeoffs And Payments Applied	[2]	25		25		39
Impaired Financing Receivable, Recorded Investment	[3]	327		327		390
Impaired Financing Receivable, with No Related Allowance, Recorded Investment	[3]	38		38		43
Impaired Financing Receivable, with Related Allowance, Recorded Investment	[3]	289		289		347
Impaired Financing Receivable, Related Allowance		$ 70		$ 70		$ 85
Impaired Financing Receivable, Coverage Percentage	[4]	27.00%		27.00%		28.90%
Impaired Financing Receivable, Average Recorded Investment		$ 322	464	$ 350	491
Impaired Financing Receivable, Interest Income Recognized		2	2	7	9
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]	0		0		0
Impaired Financing Receivable, Recorded Investment	[3]	4		4		3
Impaired Financing Receivable, with No Related Allowance, Recorded Investment	[3]	0		0		0
Impaired Financing Receivable, with Related Allowance, Recorded Investment	[3]	4		4		3
Impaired Financing Receivable, Related Allowance		$ 1		$ 1		$ 1
Impaired Financing Receivable, Coverage Percentage	[4]	25.00%		25.00%		33.30%
Impaired Financing Receivable, Average Recorded Investment		$ 4	30	$ 4	36
Impaired Financing Receivable, Interest Income Recognized		0	1	0	1
Commercial Portfolio Segment [Member]
Financing Receivable, Impaired [Line Items]
Impaired Financing Receivable, Unpaid Principal Balance	[1]	802		802		$ 820
Impaired Financing Receivable Chargeoffs And Payments Applied	[2]	58		58		78
Impaired Financing Receivable, Recorded Investment	[3]	744		744		742
Impaired Financing Receivable, with No Related Allowance, Recorded Investment	[3]	80		80		54
Impaired Financing Receivable, with Related Allowance, Recorded Investment	[3]	664		664		688
Impaired Financing Receivable, Related Allowance		$ 187		$ 187		$ 186
Impaired Financing Receivable, Coverage Percentage	[4]	30.50%		30.50%		32.20%
Impaired Financing Receivable, Average Recorded Investment		$ 705	790	$ 732	909
Impaired Financing Receivable, Interest Income Recognized		3	5	11	17
Commercial Investor Real Estate Mortgage [Member]
Financing Receivable, Impaired [Line Items]
Impaired Financing Receivable, Unpaid Principal Balance	[1]	204		204		$ 429
Impaired Financing Receivable Chargeoffs And Payments Applied	[2]	16		16		47
Impaired Financing Receivable, Recorded Investment	[3]	188		188		382
Impaired Financing Receivable, with No Related Allowance, Recorded Investment	[3]	16		16		26
Impaired Financing Receivable, with Related Allowance, Recorded Investment	[3]	172		172		356
Impaired Financing Receivable, Related Allowance		$ 26		$ 26		$ 58
Impaired Financing Receivable, Coverage Percentage	[4]	20.60%		20.60%		24.50%
Impaired Financing Receivable, Average Recorded Investment		$ 210	446	$ 266	532
Impaired Financing Receivable, Interest Income Recognized		2	4	8	18
Commercial Investor Real Estate Construction [Member]
Financing Receivable, Impaired [Line Items]
Impaired Financing Receivable, Unpaid Principal Balance	[1]	5		5		$ 36
Impaired Financing Receivable Chargeoffs And Payments Applied	[2]	1		1		1
Impaired Financing Receivable, Recorded Investment	[3]	4		4		35
Impaired Financing Receivable, with No Related Allowance, Recorded Investment	[3]	0		0		0
Impaired Financing Receivable, with Related Allowance, Recorded Investment	[3]	4		4		35
Impaired Financing Receivable, Related Allowance		$ 1		$ 1		$ 7
Impaired Financing Receivable, Coverage Percentage	[4]	40.00%		40.00%		22.20%
Impaired Financing Receivable, Average Recorded Investment		$ 14	44	$ 26	68
Impaired Financing Receivable, Interest Income Recognized		0	0	1	2
Total Investor Real Estate [Member]
Financing Receivable, Impaired [Line Items]
Impaired Financing Receivable, Unpaid Principal Balance	[1]	209		209		$ 465
Impaired Financing Receivable Chargeoffs And Payments Applied	[2]	17		17		48
Impaired Financing Receivable, Recorded Investment	[3]	192		192		417
Impaired Financing Receivable, with No Related Allowance, Recorded Investment	[3]	16		16		26
Impaired Financing Receivable, with Related Allowance, Recorded Investment	[3]	176		176		391
Impaired Financing Receivable, Related Allowance		$ 27		$ 27		$ 65
Impaired Financing Receivable, Coverage Percentage	[4]	21.10%		21.10%		24.30%
Impaired Financing Receivable, Average Recorded Investment		$ 224	490	$ 292	600
Impaired Financing Receivable, Interest Income Recognized		2	4	9	20
Residential First Mortgage [Member]
Financing Receivable, Impaired [Line Items]
Impaired Financing Receivable, Unpaid Principal Balance	[1]	511		511		$ 505
Impaired Financing Receivable Chargeoffs And Payments Applied	[2]	30		30		37
Impaired Financing Receivable, Recorded Investment	[3]	481		481		468
Impaired Financing Receivable, with No Related Allowance, Recorded Investment	[3]	0		0		0
Impaired Financing Receivable, with Related Allowance, Recorded Investment	[3]	481		481		468
Impaired Financing Receivable, Related Allowance		$ 62		$ 62		$ 64
Impaired Financing Receivable, Coverage Percentage	[4]	18.00%		18.00%		20.00%
Impaired Financing Receivable, Average Recorded Investment		$ 477	451	$ 476	454
Impaired Financing Receivable, Interest Income Recognized		3	3	11	10
Home Equity [Member]
Financing Receivable, Impaired [Line Items]
Impaired Financing Receivable, Unpaid Principal Balance	[1]	362		362		$ 381
Impaired Financing Receivable Chargeoffs And Payments Applied	[2]	13		13		13
Impaired Financing Receivable, Recorded Investment	[3]	349		349		368
Impaired Financing Receivable, with No Related Allowance, Recorded Investment	[3]	0		0		0
Impaired Financing Receivable, with Related Allowance, Recorded Investment	[3]	349		349		368
Impaired Financing Receivable, Related Allowance		$ 8		$ 8		$ 14
Impaired Financing Receivable, Coverage Percentage	[4]	5.80%		5.80%		7.10%
Impaired Financing Receivable, Average Recorded Investment		$ 352	379	$ 357	383
Impaired Financing Receivable, Interest Income Recognized		5	5	14	15
Indirect-vehicles [Member]
Financing Receivable, Impaired [Line Items]
Impaired Financing Receivable, Unpaid Principal Balance	[1]	1		1		$ 1
Impaired Financing Receivable Chargeoffs And Payments Applied	[2]	0		0		0
Impaired Financing Receivable, Recorded Investment	[3]	1		1		1
Impaired Financing Receivable, with No Related Allowance, Recorded Investment	[3]	0		0		0
Impaired Financing Receivable, with Related Allowance, Recorded Investment	[3]	1		1		1
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		$ 1	1	$ 1	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
Consumer Other Financing Receivable [Member]
Financing Receivable, Impaired [Line Items]
Impaired Financing Receivable, Unpaid Principal Balance	[1]	13		13		$ 17
Impaired Financing Receivable Chargeoffs And Payments Applied	[2]	0		0		0
Impaired Financing Receivable, Recorded Investment	[3]	13		13		17
Impaired Financing Receivable, with No Related Allowance, Recorded Investment	[3]	0		0		0
Impaired Financing Receivable, with Related Allowance, Recorded Investment	[3]	13		13		17
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		$ 13	19	$ 15	22
Impaired Financing Receivable, Interest Income Recognized		1	0	1	1
Consumer Portfolio Segment [Member]
Financing Receivable, Impaired [Line Items]
Impaired Financing Receivable, Unpaid Principal Balance	[1]	889		889		$ 906
Impaired Financing Receivable Chargeoffs And Payments Applied	[2]	43		43		50
Impaired Financing Receivable, Recorded Investment	[3]	846		846		856
Impaired Financing Receivable, with No Related Allowance, Recorded Investment	[3]	0		0		0
Impaired Financing Receivable, with Related Allowance, Recorded Investment	[3]	846		846		856
Impaired Financing Receivable, Related Allowance		$ 70		$ 70		$ 78
Impaired Financing Receivable, Coverage Percentage	[4]	12.70%		12.70%		14.10%
Impaired Financing Receivable, Average Recorded Investment		$ 845	852	$ 851	862
Impaired Financing Receivable, Interest Income Recognized		9	$ 8	26	$ 26
Non Accrual [Member]
Financing Receivable, Impaired [Line Items]
Impaired Financing Receivable, Unpaid Principal Balance	[1]	759		759		$ 822
Impaired Financing Receivable Chargeoffs And Payments Applied	[2]	82		82		138
Impaired Financing Receivable, Recorded Investment	[3]	677		677		684
Impaired Financing Receivable, with No Related Allowance, Recorded Investment	[3]	96		96		80
Impaired Financing Receivable, with Related Allowance, Recorded Investment	[3]	581		581		604
Impaired Financing Receivable, Related Allowance		$ 180		$ 180		$ 192
Impaired Financing Receivable, Coverage Percentage	[4]	34.50%		34.50%		40.10%
Non Accrual [Member] | Commercial And Industrial [Member]
Financing Receivable, Impaired [Line Items]
Impaired Financing Receivable, Unpaid Principal Balance	[1]	$ 380		$ 380		$ 286
Impaired Financing Receivable Chargeoffs And Payments Applied	[2]	31		31		36
Impaired Financing Receivable, Recorded Investment	[3]	349		349		250
Impaired Financing Receivable, with No Related Allowance, Recorded Investment	[3]	42		42		11
Impaired Financing Receivable, with Related Allowance, Recorded Investment	[3]	307		307		239
Impaired Financing Receivable, Related Allowance		$ 104		$ 104		$ 83
Impaired Financing Receivable, Coverage Percentage	[4]	35.50%		35.50%		41.60%
Non Accrual [Member] | Commercial Real Estate Mortgage - Owner-Occupied [Member]
Financing Receivable, Impaired [Line Items]
Impaired Financing Receivable, Unpaid Principal Balance	[1]	$ 252		$ 252		$ 267
Impaired Financing Receivable Chargeoffs And Payments Applied	[2]	19		19		29
Impaired Financing Receivable, Recorded Investment	[3]	233		233		238
Impaired Financing Receivable, with No Related Allowance, Recorded Investment	[3]	38		38		43
Impaired Financing Receivable, with Related Allowance, Recorded Investment	[3]	195		195		195
Impaired Financing Receivable, Related Allowance		$ 60		$ 60		$ 69
Impaired Financing Receivable, Coverage Percentage	[4]	31.30%		31.30%		36.70%
Non Accrual [Member] | Commercial Real Estate Construction - Owner-Occupied [Member]
Financing Receivable, Impaired [Line Items]
Impaired Financing Receivable, Unpaid Principal Balance	[1]	$ 3		$ 3		$ 3
Impaired Financing Receivable Chargeoffs And Payments Applied	[2]	0		0		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		$ 1		$ 1		$ 1
Impaired Financing Receivable, Coverage Percentage	[4]	33.30%		33.30%		33.30%
Non Accrual [Member] | Commercial Portfolio Segment [Member]
Financing Receivable, Impaired [Line Items]
Impaired Financing Receivable, Unpaid Principal Balance	[1]	$ 635		$ 635		$ 556
Impaired Financing Receivable Chargeoffs And Payments Applied	[2]	50		50		65
Impaired Financing Receivable, Recorded Investment	[3]	585		585		491
Impaired Financing Receivable, with No Related Allowance, Recorded Investment	[3]	80		80		54
Impaired Financing Receivable, with Related Allowance, Recorded Investment	[3]	505		505		437
Impaired Financing Receivable, Related Allowance		$ 165		$ 165		$ 153
Impaired Financing Receivable, Coverage Percentage	[4]	33.90%		33.90%		39.20%
Non Accrual [Member] | Commercial Investor Real Estate Mortgage [Member]
Financing Receivable, Impaired [Line Items]
Impaired Financing Receivable, Unpaid Principal Balance	[1]	$ 47		$ 47		$ 162
Impaired Financing Receivable Chargeoffs And Payments Applied	[2]	8		8		39
Impaired Financing Receivable, Recorded Investment	[3]	39		39		123
Impaired Financing Receivable, with No Related Allowance, Recorded Investment	[3]	16		16		26
Impaired Financing Receivable, with Related Allowance, Recorded Investment	[3]	23		23		97
Impaired Financing Receivable, Related Allowance		$ 10		$ 10		$ 30
Impaired Financing Receivable, Coverage Percentage	[4]	38.30%		38.30%		42.60%
Non Accrual [Member] | Commercial Investor Real Estate Construction [Member]
Financing Receivable, Impaired [Line Items]
Impaired Financing Receivable, Unpaid Principal Balance	[1]	$ 1		$ 1		$ 3
Impaired Financing Receivable Chargeoffs And Payments Applied	[2]	0		0		1
Impaired Financing Receivable, Recorded Investment	[3]	1		1		2
Impaired Financing Receivable, with No Related Allowance, Recorded Investment	[3]	0		0		0
Impaired Financing Receivable, with Related Allowance, Recorded Investment	[3]	1		1		2
Impaired Financing Receivable, Related Allowance		$ 0		$ 0		$ 1
Impaired Financing Receivable, Coverage Percentage	[4]	0.00%		0.00%		66.70%
Non Accrual [Member] | Total Investor Real Estate [Member]
Financing Receivable, Impaired [Line Items]
Impaired Financing Receivable, Unpaid Principal Balance	[1]	$ 48		$ 48		$ 165
Impaired Financing Receivable Chargeoffs And Payments Applied	[2]	8		8		40
Impaired Financing Receivable, Recorded Investment	[3]	40		40		125
Impaired Financing Receivable, with No Related Allowance, Recorded Investment	[3]	16		16		26
Impaired Financing Receivable, with Related Allowance, Recorded Investment	[3]	24		24		99
Impaired Financing Receivable, Related Allowance		$ 10		$ 10		$ 31
Impaired Financing Receivable, Coverage Percentage	[4]	37.50%		37.50%		43.00%
Non Accrual [Member] | Residential First Mortgage [Member]
Financing Receivable, Impaired [Line Items]
Impaired Financing Receivable, Unpaid Principal Balance	[1]	$ 55		$ 55		$ 79
Impaired Financing Receivable Chargeoffs And Payments Applied	[2]	18		18		26
Impaired Financing Receivable, Recorded Investment	[3]	37		37		53
Impaired Financing Receivable, with No Related Allowance, Recorded Investment	[3]	0		0		0
Impaired Financing Receivable, with Related Allowance, Recorded Investment	[3]	37		37		53
Impaired Financing Receivable, Related Allowance		$ 5		$ 5		$ 7
Impaired Financing Receivable, Coverage Percentage	[4]	41.80%		41.80%		41.80%
Non Accrual [Member] | Home Equity [Member]
Financing Receivable, Impaired [Line Items]
Impaired Financing Receivable, Unpaid Principal Balance	[1]	$ 21		$ 21		$ 22
Impaired Financing Receivable Chargeoffs And Payments Applied	[2]	6		6		7
Impaired Financing Receivable, Recorded Investment	[3]	15		15		15
Impaired Financing Receivable, with No Related Allowance, Recorded Investment	[3]	0		0		0
Impaired Financing Receivable, with Related Allowance, Recorded Investment	[3]	15		15		15
Impaired Financing Receivable, Related Allowance		$ 0		$ 0		$ 1
Impaired Financing Receivable, Coverage Percentage	[4]	28.60%		28.60%		36.40%
Non Accrual [Member] | Consumer Portfolio Segment [Member]
Financing Receivable, Impaired [Line Items]
Impaired Financing Receivable, Unpaid Principal Balance	[1]	$ 76		$ 76		$ 101
Impaired Financing Receivable Chargeoffs And Payments Applied	[2]	24		24		33
Impaired Financing Receivable, Recorded Investment	[3]	52		52		68
Impaired Financing Receivable, with No Related Allowance, Recorded Investment	[3]	0		0		0
Impaired Financing Receivable, with Related Allowance, Recorded Investment	[3]	52		52		68
Impaired Financing Receivable, Related Allowance		$ 5		$ 5		$ 8
Impaired Financing Receivable, Coverage Percentage	[4]	38.20%		38.20%		40.60%
Accrual [Member]
Financing Receivable, Impaired [Line Items]
Impaired Financing Receivable, Unpaid Principal Balance	[1]	$ 1,141		$ 1,141		$ 1,369
Impaired Financing Receivable Chargeoffs And Payments Applied	[2]	36		36		38
Impaired Financing Receivable, Recorded Investment	[3]	1,105		1,105		1,331
Impaired Financing Receivable, Related Allowance		$ 104		$ 104		$ 137
Impaired Financing Receivable, Coverage Percentage	[4]	12.30%		12.30%		12.80%
Accrual [Member] | Commercial And Industrial [Member]
Financing Receivable, Impaired [Line Items]
Impaired Financing Receivable, Unpaid Principal Balance	[1]	$ 66		$ 66		$ 102
Impaired Financing Receivable Chargeoffs And Payments Applied	[2]	2		2		3
Impaired Financing Receivable, Recorded Investment	[3]	64		64		99
Impaired Financing Receivable, Related Allowance		$ 12		$ 12		$ 17
Impaired Financing Receivable, Coverage Percentage	[4]	21.20%		21.20%		19.60%
Accrual [Member] | Commercial Real Estate Mortgage - Owner-Occupied [Member]
Financing Receivable, Impaired [Line Items]
Impaired Financing Receivable, Unpaid Principal Balance	[1]	$ 100		$ 100		$ 162
Impaired Financing Receivable Chargeoffs And Payments Applied	[2]	6		6		10
Impaired Financing Receivable, Recorded Investment	[3]	94		94		152
Impaired Financing Receivable, Related Allowance		$ 10		$ 10		$ 16
Impaired Financing Receivable, Coverage Percentage	[4]	16.00%		16.00%		16.00%
Accrual [Member] | Commercial Real Estate Construction - Owner-Occupied [Member]
Financing Receivable, Impaired [Line Items]
Impaired Financing Receivable, Unpaid Principal Balance	[1]	$ 1		$ 1
Impaired Financing Receivable Chargeoffs And Payments Applied	[2]	0		0
Impaired Financing Receivable, Recorded Investment	[3]	1		1
Impaired Financing Receivable, Related Allowance		$ 0		$ 0
Impaired Financing Receivable, Coverage Percentage	[4]	0.00%		0.00%
Accrual [Member] | Commercial Portfolio Segment [Member]
Financing Receivable, Impaired [Line Items]
Impaired Financing Receivable, Unpaid Principal Balance	[1]	$ 167		$ 167		$ 264
Impaired Financing Receivable Chargeoffs And Payments Applied	[2]	8		8		13
Impaired Financing Receivable, Recorded Investment	[3]	159		159		251
Impaired Financing Receivable, Related Allowance		$ 22		$ 22		$ 33
Impaired Financing Receivable, Coverage Percentage	[4]	18.00%		18.00%		17.40%
Accrual [Member] | Commercial Investor Real Estate Mortgage [Member]
Financing Receivable, Impaired [Line Items]
Impaired Financing Receivable, Unpaid Principal Balance	[1]	$ 157		$ 157		$ 267
Impaired Financing Receivable Chargeoffs And Payments Applied	[2]	8		8		8
Impaired Financing Receivable, Recorded Investment	[3]	149		149		259
Impaired Financing Receivable, Related Allowance		$ 16		$ 16		$ 28
Impaired Financing Receivable, Coverage Percentage	[4]	15.30%		15.30%		13.50%
Accrual [Member] | Commercial Investor Real Estate Construction [Member]
Financing Receivable, Impaired [Line Items]
Impaired Financing Receivable, Unpaid Principal Balance	[1]	$ 4		$ 4		$ 33
Impaired Financing Receivable Chargeoffs And Payments Applied	[2]	1		1		0
Impaired Financing Receivable, Recorded Investment	[3]	3		3		33
Impaired Financing Receivable, Related Allowance		$ 1		$ 1		$ 6
Impaired Financing Receivable, Coverage Percentage	[4]	50.00%		50.00%		18.20%
Accrual [Member] | Total Investor Real Estate [Member]
Financing Receivable, Impaired [Line Items]
Impaired Financing Receivable, Unpaid Principal Balance	[1]	$ 161		$ 161		$ 300
Impaired Financing Receivable Chargeoffs And Payments Applied	[2]	9		9		8
Impaired Financing Receivable, Recorded Investment	[3]	152		152		292
Impaired Financing Receivable, Related Allowance		$ 17		$ 17		$ 34
Impaired Financing Receivable, Coverage Percentage	[4]	16.10%		16.10%		14.00%
Accrual [Member] | Residential First Mortgage [Member]
Financing Receivable, Impaired [Line Items]
Impaired Financing Receivable, Unpaid Principal Balance	[1]	$ 456		$ 456		$ 426
Impaired Financing Receivable Chargeoffs And Payments Applied	[2]	12		12		11
Impaired Financing Receivable, Recorded Investment	[3]	444		444		415
Impaired Financing Receivable, Related Allowance		$ 57		$ 57		$ 57
Impaired Financing Receivable, Coverage Percentage	[4]	15.10%		15.10%		16.00%
Accrual [Member] | Home Equity [Member]
Financing Receivable, Impaired [Line Items]
Impaired Financing Receivable, Unpaid Principal Balance	[1]	$ 341		$ 341		$ 359
Impaired Financing Receivable Chargeoffs And Payments Applied	[2]	7		7		6
Impaired Financing Receivable, Recorded Investment	[3]	334		334		353
Impaired Financing Receivable, Related Allowance		$ 8		$ 8		$ 13
Impaired Financing Receivable, Coverage Percentage	[4]	4.40%		4.40%		5.30%
Accrual [Member] | Indirect-vehicles [Member]
Financing Receivable, Impaired [Line Items]
Impaired Financing Receivable, Unpaid Principal Balance	[1]	$ 1		$ 1		$ 1
Impaired Financing Receivable Chargeoffs And Payments Applied	[2]	0		0		0
Impaired Financing Receivable, Recorded Investment	[3]	1		1		1
Impaired Financing Receivable, Related Allowance		$ 0		$ 0		$ 0
Impaired Financing Receivable, Coverage Percentage	[4]	0.00%		0.00%		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] | Consumer Other Financing Receivable [Member]
Financing Receivable, Impaired [Line Items]
Impaired Financing Receivable, Unpaid Principal Balance	[1]	$ 13		$ 13		$ 17
Impaired Financing Receivable Chargeoffs And Payments Applied	[2]	0		0		0
Impaired Financing Receivable, Recorded Investment	[3]	13		13		17
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]	$ 813		$ 813		$ 805
Impaired Financing Receivable Chargeoffs And Payments Applied	[2]	19		19		17
Impaired Financing Receivable, Recorded Investment	[3]	794		794		788
Impaired Financing Receivable, Related Allowance		$ 65		$ 65		$ 70
Impaired Financing Receivable, Coverage Percentage	[4]	10.30%		10.30%		10.80%
[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 C52

Loans and the Allowance for Credit Losses (Loans By Class Modified In TDR) (Details) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2015USD ($)obligor	Sep. 30, 2014USD ($)obligor	Sep. 30, 2015USD ($)obligor	Sep. 30, 2014USD ($)obligor
Financing Receivable, Modifications [Line Items]
Number of Obligors | obligor	454	582	1,543	1,853
Recorded Investment	$ 178	$ 247	$ 458	$ 851
Increase in Allowance at Modification	$ 8	$ 9	$ 20	$ 25
Commercial And Industrial [Member]
Financing Receivable, Modifications [Line Items]
Number of Obligors | obligor	47	67	150	216
Recorded Investment	$ 43	$ 72	$ 145	$ 236
Increase in Allowance at Modification	$ 1	$ 2	$ 3	$ 4
Commercial Real Estate Mortgage - Owner-Occupied [Member]
Financing Receivable, Modifications [Line Items]
Number of Obligors | obligor	44	61	147	218
Recorded Investment	$ 26	$ 49	$ 88	$ 196
Increase in Allowance at Modification	$ 1	$ 1	$ 3	$ 4
Commercial Real Estate Construction - Owner-Occupied [Member]
Financing Receivable, Modifications [Line Items]
Number of Obligors | obligor				3
Recorded Investment				$ 3
Increase in Allowance at Modification				$ 0
Commercial Portfolio Segment [Member]
Financing Receivable, Modifications [Line Items]
Number of Obligors | obligor	91	128	297	437
Recorded Investment	$ 69	$ 121	$ 233	$ 435
Increase in Allowance at Modification	$ 2	$ 3	$ 6	$ 8
Commercial investor real estate mortgage [Member]
Financing Receivable, Modifications [Line Items]
Number of Obligors | obligor	32	43	92	193
Recorded Investment	$ 68	$ 66	$ 107	$ 274
Increase in Allowance at Modification	$ 2	$ 1	$ 3	$ 5
Commercial Investor Real Estate Construction [Member]
Financing Receivable, Modifications [Line Items]
Number of Obligors | obligor	1	8	14	36
Recorded Investment	$ 1	$ 24	$ 8	$ 39
Increase in Allowance at Modification	$ 0	$ 1	$ 0	$ 1
Total Investor Real Estate [Member]
Financing Receivable, Modifications [Line Items]
Number of Obligors | obligor	33	51	106	229
Recorded Investment	$ 69	$ 90	$ 115	$ 313
Increase in Allowance at Modification	$ 2	$ 2	$ 3	$ 6
Residential First Mortgage [Member]
Financing Receivable, Modifications [Line Items]
Number of Obligors | obligor	92	144	321	408
Recorded Investment	$ 31	$ 26	$ 83	$ 71
Increase in Allowance at Modification	$ 4	$ 4	$ 11	$ 11
Home Equity [Member]
Financing Receivable, Modifications [Line Items]
Number of Obligors | obligor	139	142	451	481
Recorded Investment	$ 8	$ 8	$ 23	$ 28
Increase in Allowance at Modification	$ 0	$ 0	$ 0	$ 0
Consumer Credit Card Financing Receivable [Member]
Financing Receivable, Modifications [Line Items]
Number of Obligors | obligor	30	40	103	104
Recorded Investment	$ 0	$ 1	$ 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	69	77	265	194
Recorded Investment	$ 1	$ 1	$ 3	$ 3
Increase in Allowance at Modification	$ 0	$ 0	$ 0	$ 0
Consumer Portfolio Segment [Member]
Financing Receivable, Modifications [Line Items]
Number of Obligors | obligor	330	403	1,140	1,187
Recorded Investment	$ 40	$ 36	$ 110	$ 103
Increase in Allowance at Modification	$ 4	$ 4	$ 11	$ 11

Loans and the Allowance for C53

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, 2015	Sep. 30, 2014	Sep. 30, 2015	Sep. 30, 2014
Financing Receivable, Modifications [Line Items]
Defaulted during period, where modified in a TDR twelve months prior to default	$ 15	$ 15	$ 32	$ 87
Commercial And Industrial [Member]
Financing Receivable, Modifications [Line Items]
Defaulted during period, where modified in a TDR twelve months prior to default	4	2	8	48
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	3	10	6	17
Commercial Portfolio Segment [Member]
Financing Receivable, Modifications [Line Items]
Defaulted during period, where modified in a TDR twelve months prior to default	7	12	14	65
Commercial investor real estate mortgage [Member]
Financing Receivable, Modifications [Line Items]
Defaulted during period, where modified in a TDR twelve months prior to default	0	1	1	5
Commercial Investor Real Estate Construction [Member]
Financing Receivable, Modifications [Line Items]
Defaulted during period, where modified in a TDR twelve months prior to default	0	0	0	1
Total Investor Real Estate [Member]
Financing Receivable, Modifications [Line Items]
Defaulted during period, where modified in a TDR twelve months prior to default	0	1	1	6
Residential First Mortgage [Member]
Financing Receivable, Modifications [Line Items]
Defaulted during period, where modified in a TDR twelve months prior to default	7	2	15	14
Home Equity [Member]
Financing Receivable, Modifications [Line Items]
Defaulted during period, where modified in a TDR twelve months prior to default	1	0	2	2
Consumer Portfolio Segment [Member]
Financing Receivable, Modifications [Line Items]
Defaulted during period, where modified in a TDR twelve months prior to default	$ 8	$ 2	$ 17	$ 16

Loans and the Allowance for C54

Loans and the Allowance for Credit Losses (Narrative) (Details) - USD ($)	3 Months Ended		9 Months Ended
	Sep. 30, 2015	Sep. 30, 2014	Sep. 30, 2015	Sep. 30, 2014
Accounts, Notes, Loans and Financing Receivable [Line Items]
Amount of loans first reported as new TDRs			$ 217,000,000	$ 316,000,000
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	$ 30,000,000
Re-Defaulted Commercial And Investor Real Estate Loans Modified In Tdr During Period On Non Accrual Status and 90 days or more past due	0.0163
Total Restructured Binding Unfunded Commitment	71,000,000		71,000,000
Federal Home Loan Bank [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Pledged loans	14,600,000,000		14,600,000,000
Federal Reserve Bank [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Pledged loans	30,900,000,000		30,900,000,000
Indirect-vehicles and Indirect-other consumer [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Indirect-vehicles and Indirect-other consumer loans purchased	$ 310,000,000	$ 296,000,000	857,000,000	$ 814,000,000
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			$ 44,000,000
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			$ 7,000,000
Home Equity Second Lien [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
TDRs in excess of 120 days past due and collateral dependent			$ 5,000,000

Servicing of Financial Assets55

Servicing of Financial Assets (Analysis Of Mortgage Servicing Rights Under The Fair Value Measurement Method) (Details) - USD ($) $ in Millions		3 Months Ended		9 Months Ended
		Sep. 30, 2015	Sep. 30, 2014	Sep. 30, 2015	Sep. 30, 2014
Servicing Asset at Fair Value, Amount [Roll Forward]
Carrying value, beginning of period		$ 268	$ 276	$ 257	$ 297
Additions		9	9	28	24
Increase (decrease) in fair value, due to change in valuation inputs or assumptions	[1]	(25)	0	(14)	(20)
Increase (decrease) in fair value, economic amortization associated with borrower repayments	[1]	(11)	(8)	(30)	(24)
Carrying value, end of period		$ 241	$ 277	$ 241	$ 277
[1]	"Economic amortization associated with borrower repayments" includes both total loan payoffs as well as partial paydowns. Prior to the fourth quarter of 2014, this line item reflected total loan payoffs only, while partial paydowns were included in the "Due to change in valuation inputs or assumptions" line item. The 2014 three and nine months ended amount disclosed in the table has been reclassified to reflect the revised presentation.

Servicing of Financial Assets56

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 Mortgage Servicing Rights) (Details) $ in Millions	9 Months Ended
	Sep. 30, 2015USD ($)basis_point	Sep. 30, 2014USD ($)basis_point
Servicing Assets at Fair Value [Line Items]
Unpaid principal balance	$ 26,220	$ 26,943
Weighted-average prepayment speed (CPR; percentage)	12.00%	10.90%
Estimated impact on fair value of a 10% increase in prepayment speed	$ (13)	$ (15)
Estimated impact on fair value of a 20% increase in prepayment speed	$ (25)	$ (28)
Option-adjusted spread (basis points) | basis_point	999	789
Estimated impact on fair value of a 10% increase in other assumptions	$ (9)	$ (8)
Estimated impact on fair value of a 20% increase in other assumptions	$ (18)	$ (17)
Residential Mortgage Servicing Rights Weighted Average Coupon Interest Rate	4.40%	4.50%
Assumption for Fair Value of Assets or Liabilities that relate to Transferor's Continuing Involvement, Weighted Average Life	279 months	279 months
Weighted Average Servicing Fee Basis Points | basis_point	27.9	27.8

Servicing of Financial Assets57

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, 2015	Sep. 30, 2014	Sep. 30, 2015	Sep. 30, 2014
Transfers and Servicing of Financial Assets [Abstract]
Servicing related fees and other ancillary income	$ 21	$ 21	$ 62	$ 64

Servicing of Financial Assets58

Servicing of Financial Assets (Analysis Of Repurchase Liability Related To Mortgage Loans Sold With Representations And Warranty Provisions) (Details) - Obligation to Repurchase Receivables Sold [Member] - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2015	Sep. 30, 2014	Sep. 30, 2015	Sep. 30, 2014
Movement in Valuation Allowances and Reserves [Roll Forward]
Valuation Allowances and Reserves, Beginning Balance	$ 20	$ 34	$ 26	$ 39
Additions	(6)	(5)	(10)	(3)
Losses	0	(1)	(2)	(8)
Valuation Allowances and Reserves, Ending Balance	$ 14	$ 28	$ 14	$ 28

Servicing of Financial Assets59

Servicing of Financial Assets (Narrative) (Details) - USD ($) $ in Millions	Sep. 30, 2015	Sep. 30, 2014	Jul. 18, 2014
Servicing Assets at Fair Value [Line Items]
Unpaid principal balance	$ 26,220	$ 26,943
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	1,000		1,000
Commercial Real Estate [Member]
Servicing Assets at Fair Value [Line Items]
Servicing Asset at Amortized Cost	13		12
Loss Share Guarantee	$ 2		$ 4

Goodwill (Schedule of Goodwill)

Goodwill (Schedule of Goodwill) (Details) - USD ($) $ in Millions	Sep. 30, 2015	Dec. 31, 2014
Goodwill [Line Items]
Goodwill	$ 4,831	$ 4,816
Corporate Bank [Member]
Goodwill [Line Items]
Goodwill	2,258	2,258
Consumer Bank [Member]
Goodwill [Line Items]
Goodwill	2,095	2,095
Wealth Management [Member]
Goodwill [Line Items]
Goodwill	$ 478	$ 463

Preferred Stock Issuances (Deta

Preferred Stock Issuances (Details) - USD ($) $ in Millions		3 Months Ended
		Sep. 30, 2015	Dec. 31, 2014
Class of Stock [Line Items]
Preferred Stock, Liquidation Preference, Value		$ 1,000
Preferred Stock, Carrying Amount		$ 836	$ 884
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		$ 395	419
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		$ 441	$ 465
[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, 2015	Sep. 30, 2014	Sep. 30, 2015	Sep. 30, 2014
Accumulated Other Comprehensive Income (Loss), Net of Tax [Roll Forward]
Accumulated Other Comprehensive Income (Loss), Net of Tax, Period Start	$ (287)	$ (52)	$ (238)	$ (319)
Other comprehensive income (loss), net of tax	148	(122)	99	145
Accumulated Other Comprehensive Income (Loss), Net of Tax, Period End	(139)	(174)	(139)	(174)
Accumulated Net Unrealized Loss on Held To Maturity Securities [Member]
Accumulated Other Comprehensive Income (Loss), Net of Tax [Roll Forward]
Accumulated Other Comprehensive Income (Loss), Net of Tax, Period Start	(51)	(60)	(55)	(64)
Other comprehensive income (loss), net of tax	2	2	6	6
Accumulated Other Comprehensive Income (Loss), Net of Tax, Period End	(49)	(58)	(49)	(58)
Accumulated Net Unrealized Securities Available For Sale Gain (Loss) [Member]
Accumulated Other Comprehensive Income (Loss), Net of Tax [Roll Forward]
Accumulated Other Comprehensive Income (Loss), Net of Tax, Period Start	96	203	175	(22)
Other comprehensive income (loss), net of tax	42	(92)	(37)	133
Accumulated Other Comprehensive Income (Loss), Net of Tax, Period End	138	111	138	111
Accumulated Net Gain (Loss) from Derivative Instruments Designated as Cash Flow Hedges [Member]
Accumulated Other Comprehensive Income (Loss), Net of Tax [Roll Forward]
Accumulated Other Comprehensive Income (Loss), Net of Tax, Period Start	45	44	33	15
Other comprehensive income (loss), net of tax	96	(37)	108	(8)
Accumulated Other Comprehensive Income (Loss), Net of Tax, Period End	141	7	141	7
Accumulated Defined Benefit Plans Adjustment [Member]
Accumulated Other Comprehensive Income (Loss), Net of Tax [Roll Forward]
Accumulated Other Comprehensive Income (Loss), Net of Tax, Period Start	(377)	(239)	(391)	(248)
Other comprehensive income (loss), net of tax	8	5	22	14
Accumulated Other Comprehensive Income (Loss), Net of Tax, Period End	$ (369)	$ (234)	$ (369)	$ (234)

Reclassification from Accumulat

Reclassification from Accumulated Other Comprehensive Income (Details) - USD ($) $ in Millions		3 Months Ended		9 Months Ended
		Sep. 30, 2015	Sep. 30, 2014	Sep. 30, 2015	Sep. 30, 2014
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Interest Income (Expense), Net		$ 836	$ 821	$ 2,471	$ 2,460
Securities gains (losses), net		7	7	18	15
Salaries and employee benefits		(470)	(456)	(1,405)	(1,354)
Income tax (expense) benefit		(116)	(151)	(335)	(450)
Net income		258	320	777	931
Reclassification out of Accumulated Other Comprehensive Income [Member]
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Net income	[1]	19	19	49	47
Accumulated Net Unrealized Loss on Held To Maturity Securities [Member] | Reclassification out of Accumulated Other Comprehensive Income [Member]
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Interest Income (Expense), Net	[1]	(3)	(3)	(10)	(10)
Income tax (expense) benefit	[1]	1	1	4	4
Net income	[1]	(2)	(2)	(6)	(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 (losses), net	[1]	7	7	18	15
Income tax (expense) benefit	[1]	(2)	(2)	(6)	(5)
Net income	[1]	5	5	12	10
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]	41	34	108	91
Income tax (expense) benefit	[1]	(16)	(13)	(41)	(35)
Net income	[1]	25	21	67	56
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]	(13)	(7)	(37)	(19)
Income tax (expense) benefit	[1]	4	2	13	6
Net income	[1]	(9)	(5)	(24)	(13)
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]	(1)	0	(1)	(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]	$ (12)	$ (7)	$ (36)	$ (18)
[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).

Stockholders' Equity And Accu64

Stockholders' Equity And Accumulated Other Comprehensive Income (Loss) (Narrative) (Details) - USD ($) $ / shares in Units, shares in Millions, $ in Millions		Apr. 23, 2015	Nov. 03, 2015	Sep. 30, 2015	Jun. 30, 2015	Mar. 31, 2015	Sep. 30, 2014	Jun. 30, 2014	Mar. 31, 2014	Sep. 30, 2015	Sep. 30, 2015	Sep. 30, 2014	Sep. 15, 2024	Apr. 24, 2014
Stockholders' Equity And Comprehensive Income (Loss) [Line Items]
Dividends, Preferred Stock											$ 48	$ 36
Cash dividend declared (in dollars per share)		$ 0.06		$ 0.06	$ 0.06	$ 0.05	$ 0.05	$ 0.05	$ 0.03		$ 0.17	$ 0.13
Stock Repurchase Program, Authorized Amount		$ 875												$ 350
Shares repurchased						11				44
Payments for Repurchase of Common Stock						$ 102				$ 442	$ 544	$ 8
Subsequent Event [Member]
Stockholders' Equity And Comprehensive Income (Loss) [Line Items]
Shares repurchased			1.4
Payments for Repurchase of Common Stock			$ 13.6
Series A Preferred Stock [Member]
Stockholders' Equity And Comprehensive Income (Loss) [Line Items]
Preferred Stock, Dividend Rate, Percentage				6.375%
Dividends, Preferred Stock				$ 8	$ 8	8	$ 8	$ 8	$ 8
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	$ 8	$ 8	$ 12
Series B Preferred Stock [Member] | Series B Preferred Stock Dividend Scenario 1 [Member]
Stockholders' Equity And Comprehensive Income (Loss) [Line Items]
Preferred Stock, Dividend Rate, Percentage													6.375%
Series B Preferred Stock [Member] | Series B Preferred Stock Dividend Scenario 2 [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%
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	$ 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	$ 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 Sh65

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, 2015	Sep. 30, 2014	Sep. 30, 2015	Sep. 30, 2014
Numerator:
Income from continuing operations		$ 262	$ 317	$ 787	$ 915
Preferred stock dividends		(16)	(20)	(48)	(36)
Income from continuing operations available to common shareholders		246	297	739	879
Income (loss) from discontinued operations, net of tax		(4)	3	(10)	16
Net income available to common shareholders		$ 242	$ 300	$ 729	$ 895
Denominator:
Weighted-average common shares outstanding—basic		1,319	1,378	1,333	1,378
Potential common shares		7	11	10	12
Weighted-average common shares outstanding—diluted		1,326	1,389	1,343	1,390
Earnings per common share from continuing operations:
Basic (in dollars per share)	[1]	$ 0.19	$ 0.22	$ 0.55	$ 0.64
Diluted (in dollars per share)	[1]	0.19	0.21	0.55	0.63
Earning (Loss) Per Common Share From Discontinued Operations [Abstract]
Basic (in dollars per share)	[1]	0	0	(0.01)	0.01
Diluted (in dollars per share)	[1]	0	0	(0.01)	0.01
Earnings per common share
Basic (in dollars per share)	[1]	0.18	0.22	0.55	0.65
Diluted (in dollars per share)	[1]	$ 0.18	$ 0.22	$ 0.54	$ 0.64
Antidilutive Securities Excluded from Computation of Earnings Per Share (in shares)		29	23	29	24
[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, 2015	Sep. 30, 2014
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding [Roll Forward]
Number of Options, Outstanding at beginning of period	25,316,676	32,127,235
Number of Options, Exercised	(535,107)	(2,166,521)
Number of Options, Canceled/Forfeited	(5,410,769)	(4,486,405)
Number of Options, Outstanding at end of period	19,370,800	25,474,309
Number of Options, Exercisable at end of period	19,370,800	25,474,309
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)	$ 23.07	$ 22.81
Weighted-Average Exercise Price, Exercised (in dollars per share)	6.92	4.52
Weighted-Average Exercise Price, Canceled/Forfeited (in dollars per share)	31.82	30.44
Weighted-Average Exercise Price, Outstanding at end of period (in dollars per share)	21.07	23.02
Weighted-Average Exercise Price, Exercisable at end of period (in dollars per share)	$ 21.07	$ 23.02

Share-Based Payments (Summary67

Share-Based Payments (Summary Of Restricted Stock Award And Unit Activity) (Details) - $ / shares	9 Months Ended
	Sep. 30, 2015	Sep. 30, 2014
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	18,427,409	16,212,198
Number of Shares, Granted	6,622,682	5,368,113
Number of Shares, Vested	(8,106,010)	(2,623,699)
Number of Shares, Forfeited	(506,271)	(459,102)
Number of Shares, Non-vested at end of period	16,437,810	18,497,510
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)	$ 8.07	$ 6.83
Weighted-Average Grant Date Fair Value, Granted (in dollars per share)	9.90	11.22
Weighted-Average Grant Date Fair Value, Vested (in dollars per share)	6.07	6.82
Weighted-Average Grant Date Fair Value, Forfeited (in dollars per share)	8.54	8.06
Weighted-Average Grant Date Fair Value, Non-vested at end of period (in dollars per share)	$ 9.51	$ 8.07

Share-Based Payments (Narrative

Share-Based Payments (Narrative) (Details) - shares shares in Millions	9 Months Ended
	Sep. 30, 2015	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 remaining share equivalents authorized for issuance under the long term compensation plan		60
Number of remaining share equivalents authorized for issuance under the long term compensation plan	54

Pension and Other Postretirem69

Pension and Other Postretirement Benefits (Schedule of Net Periodic Pension Cost) (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2015	Sep. 30, 2014	Sep. 30, 2015	Sep. 30, 2014
Defined Benefit Plan Disclosure [Line Items]
Service Cost	$ 11	$ 10	$ 34	$ 28
Interest Cost	23	23	68	70
Expected Return on Plan Assets	(38)	(34)	(112)	(103)
Amortization of Actuarial Loss	12	7	36	18
Amortization of Prior Service Cost	1	0	1	1
Settlement Charge	0	0	0	3
Net Periodic Pension Cost	9	6	27	17
Qualified [Member]
Defined Benefit Plan Disclosure [Line Items]
Service Cost	10	9	30	25
Interest Cost	21	21	63	65
Expected Return on Plan Assets	(38)	(34)	(112)	(103)
Amortization of Actuarial Loss	11	6	33	16
Amortization of Prior Service Cost	0	0	0	0
Settlement Charge	0	0	0	0
Net Periodic Pension Cost	4	2	14	3
Non-qualified Plans [Member]
Defined Benefit Plan Disclosure [Line Items]
Service Cost	1	1	4	3
Interest Cost	2	2	5	5
Expected Return on Plan Assets	0	0	0	0
Amortization of Actuarial Loss	1	1	3	2
Amortization of Prior Service Cost	1	0	1	1
Settlement Charge	0	0	0	3
Net Periodic Pension Cost	$ 5	$ 4	$ 13	$ 14

Pension and Other Postretirem70

Pension and Other Postretirement Benefits Narrative (Details) - USD ($) $ in Millions	3 Months Ended
	Dec. 31, 2015	Mar. 31, 2015
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Contributions by Employer		$ 150
Subsequent Event [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Contributions by Employer	$ 100

Income Taxes Income Taxes Narra

Income Taxes Income Taxes Narrative (Details) - USD ($) $ in Millions	9 Months Ended
	Sep. 30, 2015	Dec. 31, 2014
Income Tax Examination [Line Items]
Unrecognized Tax Benefits, Decrease Resulting from Settlements with Taxing Authorities	$ 13
Unrecognized Tax Benefits	37	$ 50
Unrecognized Tax Benefits that Would Impact Effective Tax Rate	24	$ 34
Internal Revenue Service (IRS) [Member]
Income Tax Examination [Line Items]
Tax Adjustments, Settlements, and Unusual Provisions	4
Unrecognized Tax Benefits, Decrease Resulting from Settlements with Taxing Authorities	3
State and Local Jurisdiction [Member]
Income Tax Examination [Line Items]
Tax Adjustments, Settlements, and Unusual Provisions	$ 6

Derivative Financial Instrume72

Derivative Financial Instruments And Hedging Activities (Narrative) (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2015	Sep. 30, 2014	Sep. 30, 2015	Sep. 30, 2014	Dec. 31, 2014
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Terminated Cash Flow Hedge Unrealized Gain (Loss) To Be Reclassified From OCI, After Tax Amount			$ 24	$ 40
Cash Flow Hedge Pre Tax Income (Loss)	$ 11	$ 14	33	$ 37
Cash flow hedge gain expected to be reclassified from other comprehensive income into earnings within the next 12 months			146
Pre-tax net income related to amortization of discontinued cash flow hedges			$ 26
Maximum Length of Time Hedged in Cash Flow Hedge			10 years
Derivative, Notional Amount	78,894		$ 78,894		$ 81,870
Credit risk, defined as all positive exposures not collateralized	585		585		392
Maximum potential future exposure on swap participations	114		114
Aggregate fair value of all derivative instruments with credit risk	221		221		272
Posted collateral related to derivative instruments with credit risk	219		219		272
Not Designated as Hedging Instrument [Member]
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Derivative, Notional Amount	66,444		66,444		71,003
Interest Rate Lock Commitments [Member] | Not Designated as Hedging Instrument [Member]
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Derivative, Notional Amount	353		353		233
Forward Sale Commitments [Member] | Not Designated as Hedging Instrument [Member]
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Derivative, Notional Amount	708		708		621
Forward Rate Commitments and Futures Contracts [Member] | Not Designated as Hedging Instrument [Member]
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Derivative, Notional Amount	$ 3,500		$ 3,500		$ 3,700

Derivative Financial Instrume73

Derivative Financial Instruments and Hedging Activities (Schedule of Derivative Instruments Notional and Fair Value) (Details) - USD ($) $ in Millions		Sep. 30, 2015	Dec. 31, 2014
Derivatives, Fair Value [Line Items]
Notional Amount		$ 78,894	$ 81,870
Estimated Fair Value, Gain	[1]	1,079	1,215
Estimated Fair Value, Loss	[1]	903	1,254
Designated as Hedging Instrument [Member]
Derivatives, Fair Value [Line Items]
Notional Amount		12,450	10,867
Estimated Fair Value, Gain	[1]	220	44
Estimated Fair Value, Loss	[1]	37	61
Not Designated as Hedging Instrument [Member]
Derivatives, Fair Value [Line Items]
Notional Amount		66,444	71,003
Estimated Fair Value, Gain	[1]	859	1,171
Estimated Fair Value, Loss	[1]	866	1,193
Interest Rate Swaps [Member] | Not Designated as Hedging Instrument [Member]
Derivatives, Fair Value [Line Items]
Notional Amount		39,976	45,860
Interest Rate Swaps [Member] | Not Designated as Hedging Instrument [Member] | Other Assets [Member]
Derivatives, Fair Value [Line Items]
Estimated Fair Value, Gain	[1]	645	941
Interest Rate Swaps [Member] | Not Designated as Hedging Instrument [Member] | Other Liabilities [Member]
Derivatives, Fair Value [Line Items]
Estimated Fair Value, Loss	[1]	668	972
Interest Rate Options [Member] | Not Designated as Hedging Instrument [Member]
Derivatives, Fair Value [Line Items]
Notional Amount		2,954	3,016
Interest Rate Options [Member] | Not Designated as Hedging Instrument [Member] | Other Assets [Member]
Derivatives, Fair Value [Line Items]
Estimated Fair Value, Gain	[1]	15	10
Interest Rate Options [Member] | Not Designated as Hedging Instrument [Member] | Other Liabilities [Member]
Derivatives, Fair Value [Line Items]
Estimated Fair Value, Loss	[1]	1	2
Interest Rate Futures And Forward Commitments [Member] | Not Designated as Hedging Instrument [Member]
Derivatives, Fair Value [Line Items]
Notional Amount		18,801	17,978
Interest Rate Futures And Forward Commitments [Member] | Not Designated as Hedging Instrument [Member] | Other Assets [Member]
Derivatives, Fair Value [Line Items]
Estimated Fair Value, Gain	[1]	10	3
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]	14	8
Other Contract [Member] | Not Designated as Hedging Instrument [Member]
Derivatives, Fair Value [Line Items]
Notional Amount		4,713	4,149
Other Contract [Member] | Not Designated as Hedging Instrument [Member] | Other Assets [Member]
Derivatives, Fair Value [Line Items]
Estimated Fair Value, Gain	[1]	189	217
Other Contract [Member] | Not Designated as Hedging Instrument [Member] | Other Liabilities [Member]
Derivatives, Fair Value [Line Items]
Estimated Fair Value, Loss	[1]	183	211
Fair Value Hedging [Member] | Interest Rate Swaps [Member] | Designated as Hedging Instrument [Member]
Derivatives, Fair Value [Line Items]
Notional Amount		2,650	2,817
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]	21	6
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]	37	30
Cash Flow Hedging [Member] | Interest Rate Swaps [Member] | Designated as Hedging Instrument [Member]
Derivatives, Fair Value [Line Items]
Notional Amount		9,800	8,050
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]	199	38
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]	$ 0	$ 31
[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 Instrume74

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, 2015	Sep. 30, 2014	Sep. 30, 2015	Sep. 30, 2014
Fair Value Hedging [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Gain or (Loss) Recognized in Income on Derivatives		$ (11)	$ (11)	$ (2)	$ (50)
Gain or (Loss) Recognized in Income on Related Hedged Item		9	15	5	67
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		5	4	13	19
Gain or (Loss) Recognized in Income on Related Hedged Item		(1)	7	5	15
Fair Value Hedging [Member] | Interest Rate Swaps [Member] | Debt/CDs [Member] | Other Non-Interest Expense [Member] [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Gain or (Loss) Recognized in Income on Derivatives		10	(11)	14	(25)
Gain or (Loss) Recognized in Income on Related Hedged Item		(11)	10	(15)	27
Fair Value Hedging [Member] | Interest Rate Swaps [Member] | Available-for-sale Securities [Member] | Other Non-Interest Expense [Member] [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Gain or (Loss) Recognized in Income on Derivatives		(23)	0	(18)	(32)
Gain or (Loss) Recognized in Income on Related Hedged Item		21	(2)	15	25
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		(3)	(4)	(11)	(12)
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]	96	(37)	108	(8)
Gain or (Loss) Reclassified from AOCI into Income	[2],[3]	41	34	108	91
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]	96	(37)	108	(11)
Gain or (Loss) Reclassified from AOCI into Income	[2],[3]	41	34	108	96
Cash Flow Hedging [Member] | Forward Starting Swap [Member] | Interest Expense [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Gain or (Loss) Recognized in AOCI	[1],[2]	0	0	0	3
Gain or (Loss) Reclassified from AOCI into Income	[2],[3]	$ 0	$ 0	$ 0	$ (5)
[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 Instrume75

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, 2015	Sep. 30, 2014	Sep. 30, 2015	Sep. 30, 2014
Derivative [Line Items]
Gain or (Loss) of Derivatives Not Designated as Hedging Instruments		$ 31	$ 15	$ 43	$ 41
Capital Markets Fee Income [Member]
Derivative [Line Items]
Gain or (Loss) of Derivatives Not Designated as Hedging Instruments	[1]	17	8	21	18
Capital Markets Fee Income [Member] | Interest Rate Swaps [Member]
Derivative [Line Items]
Gain or (Loss) of Derivatives Not Designated as Hedging Instruments	[1]	3	5	11	10
Capital Markets Fee Income [Member] | Interest Rate Options [Member]
Derivative [Line Items]
Gain or (Loss) of Derivatives Not Designated as Hedging Instruments	[1]	5	0	9	0
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	0	0
Capital Markets Fee Income [Member] | Other Contract [Member]
Derivative [Line Items]
Gain or (Loss) of Derivatives Not Designated as Hedging Instruments	[1]	8	2	1	8
Mortgage Income [Member]
Derivative [Line Items]
Gain or (Loss) of Derivatives Not Designated as Hedging Instruments		14	7	22	23
Mortgage Income [Member] | Interest Rate Swaps [Member]
Derivative [Line Items]
Gain or (Loss) of Derivatives Not Designated as Hedging Instruments		22	1	19	19
Mortgage Income [Member] | Interest Rate Options [Member]
Derivative [Line Items]
Gain or (Loss) of Derivatives Not Designated as Hedging Instruments		0	(3)	4	3
Mortgage Income [Member] | Interest Rate Futures And Forward Commitments [Member]
Derivative [Line Items]
Gain or (Loss) of Derivatives Not Designated as Hedging Instruments		$ (8)	$ 9	$ (1)	$ 1
[1]	Capital markets fee income and other is included in Other income on the consolidated statements of income.

Derivative Financial Instrume76

Derivative Financial Instruments and Hedging Activities (Offsetting Derivatives) (Details) - USD ($) $ in Millions		Sep. 30, 2015	Dec. 31, 2014
Offsetting Derivative Asset Securities Purchased Under Agreements to Resell Securities Borrowed [Abstract]
Offsetting Derivative Assets, Gross amounts recognized	[1]	$ 1,079	$ 1,215
Offsetting Derivative Assets, Gross amounts offset in the consolidated balance sheets	[2]	489	815
Offsetting Derivative Assets, Net amounts presented in the consolidated balance sheets		590	400
Offsetting Derivative Assets, Gross amounts not offset in the consolidated balance sheets
Financial instruments		5	8
Cash collateral received/posted		0	0
Net amounts		585	392
Offsetting Derivative Liability Securities Sold Under Agreements to Resell Securities Loaned [Abstract]
Offsetting Derivative Liabilities, Gross Amount Recognized	[1]	903	1,254
Offsetting Derivative Liabilities, Gross amounts offset in the consolidated balance sheets	[2]	637	1,054
Offsetting Derivative Liabilities, Net amounts presented in the consolidated balance sheets		266	200
Offsetting Derivative Liabilities, Gross amounts not offset in the consolidated balance sheets
Financial instruments		50	0
Cash collateral received/posted		42	29
Net amounts		174	171
Cash collateral received, offset		127	111
Cash collateral posted		278	354
Subject to offsetting [Member]
Offsetting Derivative Asset Securities Purchased Under Agreements to Resell Securities Borrowed [Abstract]
Offsetting Derivative Assets, Gross amounts recognized		905	1,157
Offsetting Derivative Liability Securities Sold Under Agreements to Resell Securities Loaned [Abstract]
Offsetting Derivative Liabilities, Gross Amount Recognized		778	1,195
Not subject to offsetting [Member]
Offsetting Derivative Asset Securities Purchased Under Agreements to Resell Securities Borrowed [Abstract]
Offsetting Derivative Assets, Gross amounts recognized		174	58
Offsetting Derivative Liability Securities Sold Under Agreements to Resell Securities Loaned [Abstract]
Offsetting Derivative Liabilities, Gross Amount Recognized		$ 125	$ 59
[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, 2015, gross amounts of derivative assets and liabilities offset in the consolidated balance sheets presented above include cash collateral received of $127 million and cash collateral posted of $278 million. At December 31, 2014, gross amounts of derivative assets and liabilities offset in the consolidated balance sheets presented above include cash collateral received of $111 million and cash collateral posted of $354 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, 2015	Jun. 30, 2015	Dec. 31, 2014	Sep. 30, 2014	Jun. 30, 2014	Dec. 31, 2013
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Trading Securities		$ 106		$ 106
Securities available for sale		22,714		22,580
Servicing Asset at Fair Value, Amount		241	$ 268	257	$ 277	$ 276	$ 297
Derivative Asset		590		400
Derivative Liabilities		266		200
Loans held for sale, at fair value		421		440
Federal Reserve Bank Stock		484		488
Federal Home Loan Bank Stock		197		39
Recurring Fair Value Measurements [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Trading Securities		106		106
Securities available for sale		22,033		22,053
Mortgages Held-for-sale, Fair Value Disclosure		421		440
Servicing Asset at Fair Value, Amount		241		257
Derivative Asset		1,079		1,215
Derivative Liabilities		903		1,254
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		15		33
Fair Value Foreclosed Property And Other Real Estate And Equipment Nonrecurring Basis		50		49
Level 1 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Trading Securities		106		106
Securities available for sale		394		322
Derivative Asset		0		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		106		106
Securities available for sale		394		322
Mortgages Held-for-sale, Fair Value Disclosure		0		0
Servicing Asset at Fair Value, Amount		0		0
Derivative Asset		0		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		22,311		22,247
Derivative Asset		1,066		1,207
Derivative Liabilities		903		1,254
Loans held for sale, at fair value		421		440
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		21,630		21,720
Mortgages Held-for-sale, Fair Value Disclosure		421		440
Servicing Asset at Fair Value, Amount		0		0
Derivative Asset		1,066		1,207
Derivative Liabilities		903		1,254
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		36		41
Level 3 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Trading Securities		0		0
Securities available for sale		9		11
Derivative Asset		13		8
Derivative Liabilities		0		0
Loans held for sale, at fair value		32		101
Level 3 [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		9		11
Mortgages Held-for-sale, Fair Value Disclosure		0		0
Servicing Asset at Fair Value, Amount		241		257
Derivative Asset		13		8
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		15		33
Fair Value Foreclosed Property And Other Real Estate And Equipment Nonrecurring Basis		14		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		865		985
Derivative Liabilities		705		1,033
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		865		985
Derivative Liabilities		705		1,033
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		15		10
Derivative Liabilities		1		2
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		2
Derivative Liabilities		1		2
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		13		8
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		10		3
Derivative Liabilities		14		8
Interest Rate Futures And Forward Commitments [Member] | Level 1 [Member] | Recurring Fair Value Measurements [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative Asset		0		0
Derivative Liabilities		0		0
Interest Rate Futures And Forward Commitments [Member] | Level 2 [Member] | Recurring Fair Value Measurements [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative Asset		10		3
Derivative Liabilities		14		8
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		189		217
Derivative Liabilities		183		211
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		0		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		189		217
Derivative Liabilities		183		211
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		182		176
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		182		176
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		182		176
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		226		235
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		226		235
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		2
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		1		2
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		1		2
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		15,820		16,038
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		15,820		16,038
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		15,820		16,038
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		6		8
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		6		8
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		6		8
Commercial Agency [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Securities available for sale		2,414		1,964
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		2,414		1,964
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		2,414		1,964
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		1,410		1,494
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		1,410		1,494
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		1,410		1,494
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		1,762		1,990
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		1,762		1,990
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		1,759		1,987
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		893		673
Federal Reserve Bank Stock		484		488
Federal Home Loan Bank Stock		197		39
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	[1]	212		146
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	[1]	212		146
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	[1]	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	[1]	$ 0		$ 0
[1]	Excludes Federal Reserve Bank and Federal Home Loan Bank Stock totaling $484 million and $197 million, respectively, at September 30, 2015 and $488 million and $39 million, respectively, at December 31, 2014.

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, 2015		Sep. 30, 2014		Sep. 30, 2015		Sep. 30, 2014
Residential Non Agency [Member]
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Opening balance		$ 6		$ 9		$ 8		$ 9
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		(2)		0
Transfers Into Level 3		0		0		0		0
Transfers Out Of Level 3		0		0		0		0
Closing balance		6		9		6		9
Corporate and other debt securities [Member]
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Opening balance		3		2		3		2
Gain (Loss) Included in Earnings		0		0		0		0
Gain (Loss) Included in Other Comprehensive Income (Loss)		0		0		0		0
Purchases		0		1		0		4
Sales		0		0		0		0
Issuances		0		0		0		0
Settlements		0		0		0		(3)
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		9		11		11		11
Gain (Loss) Included in Earnings		0		0		0		0
Gain (Loss) Included in Other Comprehensive Income (Loss)		0		0		0		0
Purchases		0		1		0		4
Sales		0		0		0		0
Issuances		0		0		0		0
Settlements		0		0		(2)		(3)
Transfers Into Level 3		0		0		0		0
Transfers Out Of Level 3		0		0		0		0
Closing balance		9		12		9		12
Residential Mortgage Servicing Rights [Member]
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Opening balance		268		276		257		297
Gain (Loss) Included in Earnings	[1]	(36)		(8)		(44)		(44)
Gain (Loss) Included in Other Comprehensive Income (Loss)		0		0		0		0
Purchases		9		9		28		24
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		241		277		241		277
Derivative [Member]
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Opening balance		13		12		8		5
Gain (Loss) Included in Earnings		32	[2]	20	[1]	85	[3]	70	[1]
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		(32)		(23)		(80)		(66)
Transfers Into Level 3		0		0		0		0
Transfers Out Of Level 3		0		0		0		0
Closing balance		13		$ 9		13		$ 9
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		1				5
Mortgage Income [Member] | Derivative [Member]
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Gain (Loss) Included in Earnings		$ 31				$ 80
[1]	Included in mortgage income.
[2]	Approximately $1 million was included in capital markets fee income and other and $31 million was included in mortgage income.
[3]	Approximately $5 million was included in capital markets fee income and other and $80 million was included in mortgage income.

Fair Value Measurements (Sche79

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, 2015	Sep. 30, 2014	Sep. 30, 2015	Sep. 30, 2014
Loans Held For Sale [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets, Fair Value Adjustment	$ (5)	$ (11)	$ (16)	$ (34)
Foreclosed Property And Other Real Estate [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets, Fair Value Adjustment	$ (9)	$ (4)	$ (56)	$ (18)

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, 2015		Dec. 31, 2014
Residential Non Agency [Member] | Discounted Cash Flow [Member] | Level 3 [Member]
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Assets, Fair Value Disclosure, Recurring	$ 6		$ 8
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
Mortgage Servicing Rights [Member] | Discounted Cash Flow [Member] | Level 3 [Member]
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Assets, Fair Value Disclosure, Recurring	241	[1]	257	[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	12		8
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
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	11		$ 8
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	$ 3
Recurring Fair Value Measurements [Member] | Residential Non Agency [Member] | Minimum [Member] | Discounted Cash Flow [Member]
Fair Value Inputs [Abstract]
Spread to LIBOR	5.50%		5.40%
Fair Value Inputs, Prepayment Rate	6.50%		6.30%
Fair Value Inputs, Probability of Default	1.50%		1.40%
Fair Value Inputs, Loss Severity	40.50%		37.40%
Recurring Fair Value Measurements [Member] | Residential Non Agency [Member] | Maximum [Member] | Discounted Cash Flow [Member]
Fair Value Inputs [Abstract]
Spread to LIBOR	50.00%		49.90%
Fair Value Inputs, Prepayment Rate	34.90%		15.00%
Fair Value Inputs, Probability of Default	1.50%		1.40%
Fair Value Inputs, Loss Severity	40.50%		37.40%
Recurring Fair Value Measurements [Member] | Residential Non Agency [Member] | Weighted Average [Member] | Discounted Cash Flow [Member]
Fair Value Inputs [Abstract]
Spread to LIBOR	14.70%		12.30%
Fair Value Inputs, Prepayment Rate	13.40%		9.50%
Fair Value Inputs, Probability of Default	1.50%		1.40%
Fair Value Inputs, Loss Severity	40.50%		37.40%
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	100.00%		99.90%
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	100.00%		99.90%
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	100.00%		99.90%
Recurring Fair Value Measurements [Member] | Mortgage Servicing Rights [Member] | Minimum [Member] | Discounted Cash Flow [Member]
Fair Value Inputs [Abstract]
Fair Value Inputs, Prepayment Rate	11.40%	[1]	9.90%	[2]
Option-Adjusted Spread	8.70%	[1]	7.70%	[2]
Recurring Fair Value Measurements [Member] | Mortgage Servicing Rights [Member] | Maximum [Member] | Discounted Cash Flow [Member]
Fair Value Inputs [Abstract]
Fair Value Inputs, Prepayment Rate	12.50%	[1]	22.40%	[2]
Option-Adjusted Spread	17.30%	[1]	11.30%	[2]
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	12.00%	[1]	12.00%	[2]
Option-Adjusted Spread	10.00%	[1]	9.00%	[2]
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	11.40%		9.90%
Option-Adjusted Spread	8.70%		7.70%
Pull-Through	3.50%		7.30%
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	12.50%		22.40%
Option-Adjusted Spread	17.30%		11.30%
Pull-Through	99.10%		99.10%
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	12.00%		12.00%
Option-Adjusted Spread	10.00%		9.00%
Pull-Through	86.80%		87.80%
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	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	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%
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%		3.70%
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	2.70%
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	65.50%		73.00%
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	11.00%
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	44.40%		29.60%
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	8.70%
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	$ 15		$ 33
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	12.80%		8.30%
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	96.20%		90.90%
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	52.10%		53.30%
[1]	See Note 5 for additional disclosures related to assumptions used in the fair value calculation for residential mortgage servicing rights.
[2]	See Note 7 to the consolidated financial statements of the Annual Report on Form 10-K for the year ended December 31, 2014 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, 2015	Sep. 30, 2014	Sep. 30, 2015	Sep. 30, 2014	Dec. 31, 2014
Fair Value, Option, Quantitative Disclosures [Line Items]
Mortgages Held-for-sale, Fair Value Disclosure	$ 421		$ 421		$ 440
Fair Value Option Mortgages Held For Sale Aggregate Unpaid Principal	401		401		421
Aggregate Fair Value Less Aggregate Unpaid Principal	20		20		$ 19
Net gains (losses) resulting from changes in fair value	$ 8	$ (6)	$ 0	$ 11

Fair Value Measurements (Sche82

Fair Value Measurements (Schedule Of Carrying Amounts And Estimated Fair Values Of Financial Instruments) (Details) - USD ($) $ in Millions		Sep. 30, 2015		Dec. 31, 2014
Financial Assets [Abstract]
Trading account securities		$ 106		$ 106
Held-to-maturity Securities		2,048		2,209
Securities available for sale		22,714		22,580
Loans held for sale, at fair value		421		440
Other interest-earning assets		93		89
Derivative Asset		590		400
Financial Liabilities [Abstract]
Derivative Liabilities		266		200
Fair Value Discount On Loan Portfolio Amount		$ 3,500		$ 4,400
Fair value discount on loan portfolio, rate		4.40%		5.90%
Leases, carrying amount excluded		$ 1,800		$ 1,700
Carrying Amount [Member]
Financial Assets [Abstract]
Cash and cash equivalents		5,008		4,004
Trading account securities		106		106
Held-to-maturity Securities		2,001		2,175
Securities available for sale		22,714		22,580
Loans held for sale, at fair value		453		541
Net loans (excluding leases)		78,111	[1],[2]	74,482	[3],[4]
Other interest-earning assets		93		89
Derivative Asset		1,079		1,215
Financial Liabilities [Abstract]
Derivative Liabilities		903		1,254
Deposits		97,178		94,200
Short-term Borrowings				2,253
Long-term Borrowings		7,364		3,462
Loan commitments and letters of credit		103		106
Indemnification obligation		201		206
Estimate of Fair Value [Member]
Financial Assets [Abstract]
Cash and cash equivalents		5,008	[5]	4,004	[6]
Trading account securities		106	[5]	106	[6]
Held-to-maturity Securities		2,048	[5]	2,209	[6]
Securities available for sale		22,714	[5]	22,580	[6]
Loans held for sale, at fair value		453	[5]	541	[6]
Net loans (excluding leases)		74,659	[1],[2],[5]	70,114	[3],[4],[6]
Other interest-earning assets		93	[5]	89	[6]
Derivative Asset		1,079	[5]	1,215	[6]
Financial Liabilities [Abstract]
Derivative Liabilities		903	[5]	1,254	[6]
Deposits		97,219	[5]	94,186	[6]
Short-term Borrowings	[6]			2,253
Long-term Borrowings		7,642	[5]	3,871	[6]
Loan commitments and letters of credit		478	[5]	539	[6]
Indemnification obligation		197	[5]	198	[6]
Level 1 [Member]
Financial Assets [Abstract]
Cash and cash equivalents		5,008		4,004
Trading account securities		106		106
Held-to-maturity Securities		1		1
Securities available for sale		394		322
Loans held for sale, at fair value		0		0
Net loans (excluding leases)		0	[1],[2]	0	[3],[4]
Other interest-earning assets		0		0
Derivative Asset		0		0
Financial Liabilities [Abstract]
Derivative Liabilities		0		0
Deposits		0		0
Short-term Borrowings				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		2,047		2,208
Securities available for sale		22,311		22,247
Loans held for sale, at fair value		421		440
Net loans (excluding leases)		0	[1],[2]	0	[3],[4]
Other interest-earning assets		93		89
Derivative Asset		1,066		1,207
Financial Liabilities [Abstract]
Derivative Liabilities		903		1,254
Deposits		97,219		94,186
Short-term Borrowings				2,253
Long-term Borrowings		4,801		3,504
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		0
Held-to-maturity Securities		0		0
Securities available for sale		9		11
Loans held for sale, at fair value		32		101
Net loans (excluding leases)		74,659	[1],[2]	70,114	[3],[4]
Other interest-earning assets		0		0
Derivative Asset		13		8
Financial Liabilities [Abstract]
Derivative Liabilities		0		0
Deposits		0		0
Short-term Borrowings				0
Long-term Borrowings		2,841		367
Loan commitments and letters of credit		478		539
Indemnification obligation		$ 197		$ 198
[1]	Excluded from this table is the lease carrying amount of $1.8 billion at September 30, 2015.
[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, 2015 was $3.5 billion or 4.4 percent.
[3]	Excluded from this table is the lease carrying amount of $1.7 billion at December 31, 2014.
[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, 2014 was $4.4 billion or 5.9 percent.
[5]	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.
[6]	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, 2015	Sep. 30, 2014
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, 2015	Sep. 30, 2014	Sep. 30, 2015	Sep. 30, 2014
Segment Reporting Information [Line Items]
Non-interest income	$ 497	$ 497	$ 1,557	$ 1,429
Non-interest expense	895	826	2,734	2,463
Income from continuing operations before income taxes	378	468	1,122	1,365
Income tax expense (benefit)	116	151	335	450
Corporate Bank [Member]
Segment Reporting Information [Line Items]
Net interest income (loss)	287	283	850	853
Provision (Credit) for Loan Losses	8	3	2	4
Non-interest income	103	95	291	243
Non-interest expense	151	133	458	400
Income from continuing operations before income taxes	231	242	681	692
Income tax expense (benefit)	88	92	259	264
Net income	143	150	422	428
Average assets	46,671	43,573	45,908	43,282
Consumer Bank [Member]
Segment Reporting Information [Line Items]
Net interest income (loss)	613	615	1,820	1,841
Provision (Credit) for Loan Losses	50	72	151	219
Non-interest income	279	287	830	848
Non-interest expense	600	575	1,804	1,721
Income from continuing operations before income taxes	242	255	695	749
Income tax expense (benefit)	92	97	264	284
Net income	150	158	431	465
Average assets	38,548	38,357	38,240	38,449
Wealth Management [Member]
Segment Reporting Information [Line Items]
Net interest income (loss)	41	44	125	133
Provision (Credit) for Loan Losses	2	0	7	1
Non-interest income	104	90	301	273
Non-interest expense	108	100	318	300
Income from continuing operations before income taxes	35	34	101	105
Income tax expense (benefit)	13	13	38	40
Net income	22	21	63	65
Average assets	2,917	2,933	2,906	2,954
Other [Member]
Segment Reporting Information [Line Items]
Net interest income (loss)	(105)	(121)	(324)	(367)
Provision (Credit) for Loan Losses	0	(51)	12	(163)
Non-interest income	11	25	135	65
Non-interest expense	36	18	154	42
Income from continuing operations before income taxes	(130)	(63)	(355)	(181)
Income tax expense (benefit)	(77)	(51)	(226)	(138)
Net income	(53)	(12)	(129)	(43)
Average assets	34,784	33,806	34,408	33,407
Continuing Operations [Member]
Segment Reporting Information [Line Items]
Net interest income (loss)	836	821	2,471	2,460
Provision (Credit) for Loan Losses	60	24	172	61
Non-interest income	497	497	1,557	1,429
Non-interest expense	895	826	2,734	2,463
Income from continuing operations before income taxes	378	468	1,122	1,365
Income tax expense (benefit)	116	151	335	450
Net income	262	317	787	915
Average assets	122,920	118,669	121,462	118,092
Discontinued Operations [Member]
Segment Reporting Information [Line Items]
Net interest income (loss)	0	0	0	0
Provision (Credit) for Loan Losses	0	0	0	0
Non-interest income	0	19	0	19
Non-interest expense	6	14	16	(7)
Income from continuing operations before income taxes	(6)	5	(16)	26
Income tax expense (benefit)	(2)	2	(6)	10
Net income	(4)	3	(10)	16
Average assets	0	0	0	0
Consolidated [Member]
Segment Reporting Information [Line Items]
Net interest income (loss)	836	821	2,471	2,460
Provision (Credit) for Loan Losses	60	24	172	61
Non-interest income	497	516	1,557	1,448
Non-interest expense	901	840	2,750	2,456
Income from continuing operations before income taxes	372	473	1,106	1,391
Income tax expense (benefit)	114	153	329	460
Net income	258	320	777	931
Average assets	$ 122,920	$ 118,669	$ 121,462	$ 118,092

Business Segment Information Na

Business Segment Information Narrative (Details)	9 Months Ended
	Sep. 30, 2015segment
Segment Reporting [Abstract]
Number of Reportable Segments	3

Commitments, Contingencies an86

Commitments, Contingencies and Guarantees (Credit Risk Of Financial Instruments By Contractual Amounts) (Details) - USD ($) $ in Millions	Sep. 30, 2015	Jun. 30, 2015	Dec. 31, 2014	Sep. 30, 2014	Jun. 30, 2014	Dec. 31, 2013
Other Commitments [Line Items]
Unused commitments to extend credit	$ 45,595		$ 43,724
Standby Letters Of Credit Commitment	1,467		1,697
Commercial letters of credit	40		71
Liabilities associated with standby letters of credit	38		40
Assets associated with standby letters of credit	39		40
Reserve for unfunded credit commitments	$ 64	$ 64	$ 65	$ 65	$ 89	$ 78

Commitments, Contingencies an87

Commitments, Contingencies and Guarantees (Narrative) (Details) - USD ($) $ in Millions	3 Months Ended
	Sep. 30, 2015		Dec. 31, 2014		Apr. 02, 2012
Long-term Purchase Commitment [Line Items]
Estimated aggregate amount of losses reasonably possible to be incurred in excess of amounts accrued	$ 40
Alleged securities law violations by Morgan Keegan	39
Litigation Settlement, Amount	90
Insurance Proceeds	90
Fair value of the indemnification obligation					$ 385
Fair value of the indemnification obligation, incremental increase over FAS 5 reserve					$ 256
Carrying Amount [Member]
Long-term Purchase Commitment [Line Items]
Indemnification obligation	201		$ 206
Carrying Amount [Member] | Indemnification Agreement [Member]
Long-term Purchase Commitment [Line Items]
Indemnification obligation	201
Estimate of Fair Value [Member]
Long-term Purchase Commitment [Line Items]
Indemnification obligation	197	[1]	$ 198	[2]
Estimate of Fair Value [Member] | Indemnification Agreement [Member]
Long-term Purchase Commitment [Line Items]
Indemnification obligation	$ 197
[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.

Recent Accounting Pronounceme88

Recent Accounting Pronouncements (Narrative) (Details) $ in Millions	Dec. 31, 2014USD ($)
Retained Earnings [Member] | Cumulative effect of adopting ASU 2014-01 [Member]
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Cumulative effect adjustment to retained earnings	$ 116