First Niagara Financial (FNFG) 10-Q 10 Nov 14 2014 Q3 Quarterly report Financial data

Document_and_Entity_Informatio

Document and Entity Information	9 Months Ended
	Sep. 30, 2014	Nov. 07, 2014
Entity Information [Line Items]	'	'
Entity Registrant Name	'FIRST NIAGARA FINANCIAL GROUP INC	'
Entity Central Index Key	'0001051741	'
Current Fiscal Year End Date	'--12-31	'
Entity Filer Category	'Large Accelerated Filer	'
Document Type	'10-Q	'
Document Period End Date	30-Sep-14	'
Document Fiscal Year Focus	'2014	'
Document Fiscal Period Focus	'Q3	'
Amendment Flag	'false	'
Entity Common Stock, Shares Outstanding	'	355,335,491

Consolidated_Statements_of_Con

Consolidated Statements of Condition (USD $)	Sep. 30, 2014	Dec. 31, 2013
In Millions, unless otherwise specified
ASSETS	'	'
Cash and cash equivalents	$451	$463
Investment securities:	'	'
Available for sale, at fair value (amortized cost of $6,109 and $7,319 in 2014 and 2013; includes pledged securities that can be sold or repledged of $60 and $303 in 2014 and 2013)	6,198	7,423
Held to maturity, at amortized cost (fair value of $5,323 and $3,988 in 2014 and 2013; includes pledged securities that can be sold or repledged of $254 and $388 in 2014 and 2013)	5,352	4,042
Federal Home Loan Bank and Federal Reserve Bank common stock, at amortized cost	390	469
Loans held for sale	31	50
Loans and leases (net of allowance for loan losses of $231 and $209 in 2014 and 2013)	22,538	21,230
Bank owned life insurance	423	415
Premises and equipment, net	399	418
Goodwill	1,350	2,449
Core deposit and other intangibles, net	74	94
Other assets	759	574
Total assets	37,966	37,628
Liabilities:	'	'
Deposits	27,670	26,665
Short-term borrowings	4,929	4,822
Long-term borrowings	734	734
Other	544	414
Total liabilities	33,876	32,635
Stockholders’ equity:	'	'
Preferred stock, $0.01 par value, 50,000,000 shares authorized; Series B, noncumulative perpetual preferred stock, $25 liquidation preference; 14,000,000 shares issued in 2014 and 2013	338	338
Common stock, $0.01 par value, 500,000,000 shares authorized; 366,002,045 shares issued in 2014 and 2013	4	4
Additional paid-in capital	4,229	4,235
(Accumulated deficit) retained earnings	-369	536
Accumulated other comprehensive income	48	62
Common stock held by employee stock ownership plan, 1,867,918 and 2,001,373 shares in 2014 and 2013	-16	-17
Treasury stock, at cost, 10,579,100 and 12,060,739 shares in 2014 and 2013	-144	-165
Total stockholders’ equity	4,090	4,993
Total liabilities and stockholders’ equity	$37,966	$37,628

Consolidated_Statements_of_Con1

Consolidated Statements of Condition (Parenthetical) (USD $)	Sep. 30, 2014	Dec. 31, 2013
In Millions, except Share data, unless otherwise specified
Statement of Financial Position [Abstract]	'	'
Amortized cost for securities available for sale	$6,109	$7,319
Fair value of pledged securities that can be sold or repledged	60	303
Fair value for securities held-to-maturity	5,323	3,988
Amortized cost of pledged securities that can be sold or repledged	254	388
Allowance for credit losses on loans and leases	$231	$209
Preferred stock, par value (dollars per share)	$0.01	$0.01
Preferred stock, shares authorized	50,000,000	50,000,000
Liquidation preference (dollars per share)	$25	$25
Preferred stock, shares issued	14,000,000	14,000,000
Common stock, par value (dollars per share)	$0.01	$0.01
Common stock, shares authorized	500,000,000	500,000,000
Common stock, shares issued	366,002,045	366,002,045
Common stock held by employee stock ownership plan, shares	1,867,918	2,001,373
Treasury stock, shares	10,579,100	12,060,739

Consolidated_Statements_of_Ope

Consolidated Statements of Operations (Unaudited) (USD $)	3 Months Ended		9 Months Ended
In Millions, except Per Share data, unless otherwise specified	Sep. 30, 2014	Sep. 30, 2013	Sep. 30, 2014	Sep. 30, 2013
Interest income:	'	'	'	'
Loans and leases	$212	$215	$632	$631
Investment securities and other	92	92	274	269
Total interest income	304	307	906	900
Interest expense:	'	'	'	'
Deposits	14	13	39	40
Borrowings	17	16	51	47
Total interest expense	31	29	90	87
Net interest income	273	278	816	813
Provision for credit losses	21	28	69	73
Net interest income after provision for credit losses	252	250	747	740
Noninterest income:	'	'	'	'
Deposit service charges	20	27	67	78
Insurance commissions	18	18	51	52
Merchant and card fees	13	12	37	36
Wealth management services	15	15	47	43
Mortgage banking	4	2	13	16
Capital markets income	4	5	10	16
Lending and leasing	4	5	13	13
Bank owned life insurance	3	4	12	11
Other income	-7	3	-18	11
Total noninterest income	75	91	233	276
Noninterest expense:	'	'	'	'
Salaries and employee benefits	116	115	352	347
Occupancy and equipment	27	27	84	83
Technology and communications	31	29	93	86
Marketing and advertising	8	6	24	16
Professional services	14	10	39	29
Amortization of intangibles	7	8	21	33
Federal deposit insurance premiums	10	9	28	28
Restructuring charges	2	0	13	0
Goodwill impairment	1,100	0	1,100	0
Deposit account remediation	45	0	45	0
Other expense	36	28	92	83
Total noninterest expense	1,397	231	1,890	704
Income before income taxes and undisbursed income of subsidiary	-1,069	110	-910	312
Income tax (benefit)	-146	31	-120	95
Net (loss) income	-923	79	-790	218
Preferred stock dividend	8	8	23	23
Net (loss) income available to common stockholders	($931)	$72	($813)	$195
(Loss) earnings per share:	'	'	'	'
Basic	($2.66)	$0.20	($2.32)	$0.55
Diluted	($2.66)	$0.20	($2.32)	$0.55
Weighted average common shares outstanding:	'	'	'	'
Basic	350	350	350	349
Diluted	350	351	350	350
Dividends per common share	$0.08	$0.08	$0.24	$0.24

Consolidated_Statements_of_Com

Consolidated Statements of Comprehensive Income (Unaudited) (USD $)	3 Months Ended		9 Months Ended
In Millions, unless otherwise specified	Sep. 30, 2014	Sep. 30, 2013	Sep. 30, 2014	Sep. 30, 2013
Statement of Comprehensive Income [Abstract]	'	'	'	'
Net (loss) income	($923)	$79	($790)	$218
Securities available for sale:	'	'	'	'
Net unrealized losses arising during the year	-31	-7	-9	-96
Reclassification adjustment for net unrealized holding gains on securities transferred between available for sale and held to maturity during the year	0	0	0	-34
Net unrealized losses on securities available for sale, net of tax	-31	-7	-9	-130
Net unrealized holding gains on securities transferred between available for sale and held to maturity:	'	'	'	'
Net unrealized holding gains on securities transferred during the year	0	0	0	34
Less: amortization of net unrealized holding gains to income during the year	-2	-4	-6	-10
Net unrealized holding (losses) gains on securities transferred during the period	-2	-4	-6	24
Net unrealized gains on interest rate swaps designated as cash flow hedges arising during the year	0	0	0	1
Amortization of net loss related to pension and post-retirement plans	0	0	1	0
Total other comprehensive loss	-33	-11	-14	-105
Total comprehensive (loss) income	($956)	$68	($804)	$112

Consolidated_Statements_of_Cha

Consolidated Statements of Changes in Stockholders' Equity (Unaudited) (USD $)	Total	Preferred stock	Common stock	Additional paid-in capital	Retained earnings (accumulated deficit)	Accumulated other comprehensive income	Common stock held by ESOP	Treasury stock
In Millions
Beginning balance at Dec. 31, 2012	$4,927	$338	$4	$4,231	$399	$157	($18)	($184)
Net (loss) income	218	'	'	'	218	'	'	'
Other comprehensive loss(1)	-105	'	'	'	'	-105	'	'
ESOP shares committed to be released (133,455 shares in 2014 and 2013)	1	'	'	0	'	'	1	'
Stock-based compensation activity (1,481,369 shares and 1,352,295 shares in 2014 and 2013, respectively)	5	'	'	1	-15	'	'	19
Preferred stock dividends	-23	'	'	'	-23	'	'	'
Common stock dividends of $0.24 per share	-84	'	'	'	-84	'	'	'
Ending balance at Sep. 30, 2013	4,938	338	4	4,232	494	52	-17	-165
Beginning balance at Dec. 31, 2013	4,993	338	4	4,235	536	62	-17	-165
Net (loss) income	-790	'	'	'	-790	'	'	'
Other comprehensive loss(1)	-14	'	'	'	'	-14	'	'
ESOP shares committed to be released (133,455 shares in 2014 and 2013)	1	'	'	'	0	'	1	'
Stock-based compensation activity (1,481,369 shares and 1,352,295 shares in 2014 and 2013, respectively)	7	'	'	-6	-8	'	'	21
Preferred stock dividends	-23	'	'	'	-23	'	'	'
Common stock dividends of $0.24 per share	-85	'	'	'	-85	'	'	'
Ending balance at Sep. 30, 2014	$4,090	$338	$4	$4,229	($369)	$48	($16)	($144)

Consolidated_Statements_of_Cha1

Consolidated Statements of Changes in Stockholders' Equity (Unaudited) (Parenthetical) (USD $)	9 Months Ended
	Sep. 30, 2014	Sep. 30, 2013
Statement of Stockholders' Equity [Abstract]	'	'
ESOP shares committed to be released	133,455	133,455
Stock-based compensation activity, shares	1,481,639	1,352,295
Common stock, dividend per share	$0.24	$0.24

Consolidated_Statements_of_Cas

Consolidated Statements of Cash Flows (Unaudited) (USD $)	9 Months Ended
In Millions, unless otherwise specified	Sep. 30, 2014	Sep. 30, 2013
Cash flows from operating activities:	'	'
Net (loss) income	($790)	$218
Adjustments to reconcile net (loss) income to net cash provided by operating activities:	'	'
Goodwill impairment loss	1,100	0
Amortization of fees and discounts, net	34	41
Provision for credit losses	69	73
Depreciation of premises and equipment	43	40
Amortization of intangibles	21	33
Origination of loans held for sale	-468	-1,113
Proceeds from sales of loans held for sale	493	1,200
ESOP and stock based-compensation expense	10	8
Deferred income tax benefit	-156	-3
Other, net	103	104
Net cash provided by operating activities	458	600
Cash flows from investing activities:	'	'
Proceeds from sales of securities available for sale	165	478
Proceeds from maturities of securities available for sale	326	147
Principal payments received on securities available for sale	789	1,006
Purchases of securities available for sale	-77	-1,461
Principal payments received on securities held to maturity	552	697
Purchases of securities held to maturity	-1,878	-225
Proceeds from maturities of securities held to maturity	5	0
Proceeds from sales of (payments for purchases of) Federal Home Loan Bank and Federal Reserve Bank common stock	79	-17
Net increase in loans and leases	-1,344	-1,403
Purchases of premises and equipment	-32	-51
Other, net	-59	-19
Net cash used in investing activities	-1,474	-849
Cash flows from financing activities:	'	'
Net increase (decrease) in deposits	1,007	-701
Proceeds from short-term borrowings, net	107	1,186
Repayments of long-term borrowings	-1	-1
Dividends paid on noncumulative preferred stock	-23	-23
Dividends paid on common stock	-85	-84
Other, net	0	-1
Net cash provided by financing activities	1,005	376
Net (decrease) increase in cash and cash equivalents	-12	127
Cash and cash equivalents at beginning of period	463	431
Cash and cash equivalents at end of period	451	558
Cash paid during the period for:	'	'
Income taxes	36	25
Interest expense	90	92
Other noncash activity:	'	'
Securities available for sale purchased not settled	9	35
Securities held to maturity purchased not settled	1	16
Securities transferred from available for sale to held to maturity (at fair value)	$0	$3,001

Investment_Securities

Investment Securities	9 Months Ended
	Sep. 30, 2014
Investments, Debt and Equity Securities [Abstract]	'
Investment Securities	'
	Investment Securities
	The amortized cost, gross unrealized gains and losses, and fair value of our investment securities at the dates indicated are summarized as follows:
		Amortized		Unrealized			Unrealized			Fair
	30-Sep-14	cost		gains			losses			value
	Investment securities available for sale:
	Debt securities:
	States and political subdivisions	$	478	$	11		$	—		$	489
	U.S. Treasury	20		—			—			20
	U.S. government sponsored enterprises	151		5			—			155
	Corporate	824		15			(10		)	829
	Total debt securities	1,473		31			(10		)	1,493
	Mortgage-backed securities:
	Residential mortgage-backed securities:
	Government National Mortgage Association	36		1			(1		)	36
	Federal National Mortgage Association	107		5			—			112
	Federal Home Loan Mortgage Corporation	123		5			—			128
	Collateralized mortgage obligations:
	Federal National Mortgage Association	729		1			(23		)	707
	Federal Home Loan Mortgage Corporation	367		—			(11		)	356
	Total collateralized mortgage obligations	1,096		1			(34		)	1,062
	Total residential mortgage-backed securities	1,362		12			(35		)	1,338
	Commercial mortgage-backed securities, non-agency issued	1,550		58			—			1,608
	Total mortgage-backed securities	2,912		70			(36		)	2,946
	Collateralized loan obligations, non-agency issued	1,026		25			(1		)	1,050
	Asset-backed securities collateralized by:
	Student loans	258		8			—			265
	Credit cards	62		—			—			62
	Auto loans	229		2			—			231
	Other	128		1			(1		)	128
	Total asset-backed securities	677		11			(1		)	687
	Other	22		—			—			22
	Total securities available for sale	$	6,109	$	138		$	(48	)	$	6,198
	Investment securities held to maturity:
	Debt securities, U.S. government agencies	$	67	$	—		$	—		$	67
	Residential mortgage-backed securities:
	Government National Mortgage Association	12		—			—			13
	Federal National Mortgage Association	125		1			(1		)	124
	Federal Home Loan Mortgage Corporation	68		—			—			68
	Collateralized mortgage obligations:
	Government National Mortgage Association	1,875		23			(9		)	1,888
	Federal National Mortgage Association	1,586		2			(33		)	1,555
	Federal Home Loan Mortgage Corporation	1,618		18			(27		)	1,608
	Total collateralized mortgage obligations	5,079		42			(70		)	5,051
	Total residential mortgage-backed securities	5,285		43			(72		)	5,256
	Total securities held to maturity	$	5,352	$	43		$	(72	)	$	5,323
		Amortized		Unrealized			Unrealized			Fair
	31-Dec-13	cost		gains			losses			value
	Investment securities available for sale:
	Debt securities:
	States and political subdivisions	$	516	$	14		$	—		$	529
	U.S. Treasury	20		—			—			20
	U.S. government sponsored enterprises	306		7			(1		)	312
	Corporate	863		19			(11		)	872
	Total debt securities	1,705		40			(12		)	1,734
	Mortgage-backed securities:
	Residential mortgage-backed securities:
	Government National Mortgage Association	41		1			(2		)	40
	Federal National Mortgage Association	134		5			—			139
	Federal Home Loan Mortgage Corporation	154		5			—			159
	Collateralized mortgage obligations:
	Federal National Mortgage Association	797		—			(36		)	761
	Federal Home Loan Mortgage Corporation	396		—			(17		)	379
	Non-agency issued	12		1			—			13
Total collateralized mortgage obligations	1,205		1			(54		)	1,152
Total residential mortgage-backed securities	1,534		12			(56		)	1,490
Commercial mortgage-backed securities, non-agency issued	1,759		74			(2		)	1,831
Total mortgage-backed securities	3,294		85			(58		)	3,321
Collateralized loan obligations, non-agency issued	1,392		40			(2		)	1,431
Asset-backed securities collateralized by:
Student loans	306		6			—			312
Credit cards	73		—			(1		)	73
Auto loans	331		4			—			335
Other	186		1			(1		)	186
Total asset-backed securities	896		11			(2		)	905
Other	33		1			—			33
Total securities available for sale	$	7,319	$	178		$	(74	)	$	7,423
Investment securities held to maturity:
Debt securities, U.S. government agencies	$	5	$	—		$	—		$	5
Residential mortgage-backed securities:
Government National Mortgage Association	17		—			—			17
Federal National Mortgage Association	146		—			(3		)	143
Federal Home Loan Mortgage Corporation	81		—			(1		)	81
Collateralized mortgage obligations:
Government National Mortgage Association	1,713		26			(12		)	1,727
Federal National Mortgage Association	1,074		—			(47		)	1,027
Federal Home Loan Mortgage Corporation	1,007		12			(30		)	989
Total collateralized mortgage obligations	3,793		39			(90		)	3,742
Total residential mortgage-backed securities	4,037		40			(94		)	3,983
Total securities held to maturity	$	4,042	$	40		$	(94	)	$	3,988
The table below details certain information regarding our investment securities that were in an unrealized loss position at the dates indicated by the length of time those securities were in a continuous loss position:
	Less than 12 months								12 months or longer						Total
	Fair		Unrealized						Fair		Unrealized				Fair		Unrealized
30-Sep-14	value		losses			Count			value		losses			Count	value		losses			Count
Investment securities available for sale:
Debt securities:
States and political subdivisions	$	14	$	—		19			$	1	$	—		6	$	16	$	—		25
U.S. government sponsored enterprises	1		—			4			42		—			4	43		—			8
Corporate	206		(4		)	133			108		(6		)	69	313		(10		)	202
Total debt securities	221		(4		)	156			150		(6		)	79	371		(10		)	235
Mortgage-backed securities:
Residential mortgage-backed securities:
Government National Mortgage Association	—		—			—			19		(1		)	5	19		(1		)	5
Collateralized mortgage obligations:
Federal National Mortgage Association	113		(1		)	8			527		(22		)	31	640		(23		)	39
Federal Home Loan Mortgage Corporation	117		(3		)	6			223		(8		)	12	340		(11		)	18
Total collateralized mortgage obligations	231		(4		)	14			750		(30		)	43	981		(34		)	57
Total residential mortgage-backed securities	231		(4		)	14			769		(31		)	48	999		(35		)	62
Commercial mortgage-backed securities, non-agency issued	21		—			5			24		—			3	45		—			8
Total mortgage-backed securities	252		(4		)	19			793		(32		)	51	1,044		(36		)	70
Collateralized loan obligations, non-agency issued	71		—			12			128		(1		)	12	199		(1		)	24
Asset-backed securities collateralized by:
Student loans	20		—			3			3		—			2	23		—			5
Credit card	—		—			—			8		—			1	8		—			1
Auto loans	3		—			2			—		—			—	3		—			2
Other	—		—			—			53		(1		)	5	53		(1		)	5
Total asset-backed securities	23		—			5			64		(1		)	8	87		(1		)	13
Other	12		—			1			9		—			3	21		—			4
Total securities available for sale in an unrealized loss position	$	579	$	(9	)	193			$	1,144	$	(39	)	153	$	1,722	$	(48	)	346
	Less than 12 months								12 months or longer						Total
	Fair		Unrealized						Fair		Unrealized				Fair		Unrealized
30-Sep-14	value		losses			Count			value		losses			Count	value		losses			Count
Investment securities held to maturity:
Debt securities, U.S. government agencies	$	52	$	—		7			$	—	$	—		—	$	52	$	—		7
Residential mortgage-backed securities:
Government National Mortgage Association	5		—			1			3		—			2	7		—			3
Federal National Mortgage Association	11		—			2			67		(1		)	16	79		(1		)	18
Federal Home Loan Mortgage Corporation	26		—			7			21		—			6	47		—			13
Collateralized mortgage obligations:
Government National Mortgage Association	801		(8		)	78			51		(1		)	12	852		(9		)	90
Federal National Mortgage Association	529		(4		)	36			654		(29		)	34	1,182		(33		)	70
Federal Home Loan Mortgage Corporation	621		(8		)	43			431		(19		)	24	1,052		(27		)	67
Total collateralized mortgage obligations	1,950		(20		)	157			1,136		(50		)	70	3,086		(70		)	227
Total residential mortgage-backed securities	1,992		(20		)	167			1,227		(52		)	94	3,219		(72		)	261
Total securities held to maturity in an unrealized loss position	$	2,044	$	(20	)	174			$	1,227	$	(52	)	94	$	3,271	$	(72	)	268
	Less than 12 months								12 months or longer						Total
	Fair		Unrealized						Fair		Unrealized				Fair		Unrealized
31-Dec-13	value		losses			Count			value		losses			Count	value		losses			Count
Investment securities available for sale:
Debt securities:
States and political subdivisions	$	13	$	—		25			$	3	$	—		7	$	16	$	—		32
U.S. government sponsored enterprises	71		(1		)	11			2		—			2	73		(1		)	13
Corporate	232		(8		)	165			74		(2		)	23	306		(11		)	188
Total debt securities	315		(9		)	201			79		(2		)	32	394		(12		)	233
Mortgage-backed securities:
Residential mortgage-backed securities:
Government National Mortgage Association	—		—			—			19		(2		)	6	19		(2		)	6
Federal National Mortgage Association	—		—			3			—		—			3	1		—			6
Collateralized mortgage obligations:
Federal National Mortgage Association	744		(36		)	41			—		—			—	744		(36		)	41
Federal Home Loan Mortgage Corporation	361		(17		)	19			—		—			—	361		(17		)	19
Non-agency issued	1		—			3			—		—			—	1		—			3
Total collateralized mortgage obligations	1,106		(54		)	63			—		—			—	1,106		(54		)	63
Total residential mortgage-backed securities	1,106		(54		)	66			19		(2		)	9	1,125		(56		)	75
Commercial mortgage-backed securities, non-agency issued	158		(2		)	15			12		—			3	170		(2		)	18
Total mortgage-backed securities	1,264		(56		)	81			32		(2		)	12	1,296		(58		)	93
Collateralized loan obligations, non-agency issued	261		(2		)	28			3		—			1	264		(2		)	29
Asset-backed securities collateralized by:
Student loans	67		—			8			—		—			—	67		—			8
Credit card	36		(1		)	4			—		—			—	36		(1		)	4
Auto loans	25		—			5			—		—			—	25		—			5
Other	72		(1		)	11			—		—			—	72		(1		)	11
Total asset-backed securities	200		(2		)	28			—		—			—	200		(2		)	28
Other	14		—			3			8		—			2	22		—			5
Total securities available for sale in an unrealized loss position	$	2,054	$	(69	)	341			$	122	$	(5	)	47	$	2,176	$	(74	)	388
	Less than 12 months								12 months or longer						Total
	Fair		Unrealized						Fair		Unrealized				Fair		Unrealized
31-Dec-13	value		losses			Count			value		losses			Count	value		losses			Count
Investment securities held to maturity:
Debt securities, U.S. government agencies	$	5	$	—		1			$	—	$	—		—	$	5	$	—		1
Residential mortgage-backed securities:
Government National Mortgage Association	11		—			4			—		—			—	11		—			4
Federal National Mortgage Association	119		(3		)	30			—		—			—	119		(3		)	30
Federal Home Loan Mortgage Corporation	59		(1		)	15			—		—			—	59		(1		)	15
Collateralized mortgage obligations:
Government National Mortgage Association	520		(12		)	58			—		—			—	520		(12		)	58
Federal National Mortgage Association	1,011		(47		)	59			—		—			—	1,011		(47		)	59
Federal Home Loan Mortgage Corporation	629		(30		)	35			22		(1		)	1	652		(30		)	36
Total collateralized mortgage obligations	2,160		(89		)	152			22		(1		)	1	2,182		(90		)	153
Total residential mortgage-backed securities	2,348		(94		)	201			22		(1		)	1	2,371		(94		)	202
Total securities held to maturity in an unrealized loss position	$	2,353	$	(94	)	202			$	22	$	(1	)	1	$	2,376	$	(94	)	203
We have assessed the securities in an unrealized loss position at September 30, 2014 and at December 31, 2013 and determined that the declines in fair value below amortized cost were temporary.
The Volcker Rule provisions of the Dodd-Frank Act restrict our ability to hold debt securities issued by Collateralized Loan Obligations ("CLOs") where our investment in these debt securities is deemed to be an ownership interest in a CLO and the CLO itself does not qualify for an exclusion in the final rule for loan securitizations. On April 7, 2014, the Federal Reserve announced that it intends to grant banking entities two additional one year extensions, which together would extend until July 21, 2017, the time period for institutions to conform their ownership interests in and sponsorship of CLOs to the final Volcker Rule.
For our CLOs subject to the Volcker Rule in an unrealized loss position, we believe it is more likely than not that we will be able to hold these securities to recovery, which could be maturity as the Federal Reserve announcement extends the conformance period to July 2017 and we believe that other structural remedies are available to us to allow us to continue holding the bonds after the conformance period.
In making the determination that the declines in fair value below amortized cost for the remainder of the portfolio were temporary, we considered some or all of the following factors: the period of time the securities were in an unrealized loss position, the percentage decline in comparison to the securities’ amortized cost, credit rating, the financial condition of the issuer and guarantor, where applicable, the delinquency or default rates of underlying collateral, projected collateral losses, projected cash flows and credit enhancement. If the level of credit enhancement is sufficient based on our expectations of future collateral losses, we conclude that we will receive all of the originally scheduled cash flows. If the present value of the cash flows indicates that we should not expect to recover the amortized cost basis of the security, we would consider the security to be other than temporarily impaired and write down the credit component of the unrealized loss through a charge to current period earnings. We do not intend to sell these securities in an unrealized loss position and it is not more likely than not that we will be required to sell these securities before the recovery of their amortized cost bases, which may be at maturity.
Scheduled contractual maturities of our investment securities at September 30, 2014 were as follows:
	Amortized cost		Fair value
Debt securities:
Within one year	$	102	$	103
After one year through five years	817		839
After five years through ten years	601		600
After ten years	20		19
Total debt securities	1,540		1,561
Mortgage-backed securities	8,196		8,202
Collateralized loan obligations	1,026		1,050
Asset-backed securities	677		687
Other	22		22
	$	11,461	$	11,521
While the contractual maturities of our mortgage-backed securities, collateralized loan obligations, asset-backed securities, and other securities generally exceed ten years, we expect the effective lives to be significantly shorter due to prepayments of the underlying loans and the nature of these securities. The duration of our investment securities portfolio increased to 3.7 years at September 30, 2014 from 3.5 years at December 31, 2013.

Loans_and_Leases

Loans and Leases	9 Months Ended
	Sep. 30, 2014
Receivables [Abstract]	'
Loans and Leases	'
	Loans and Leases
	Overall Portfolio
	Our loan portfolio is made up of two segments, commercial loans and consumer loans. Those segments are further segregated between our loans initially accounted for under the amortized cost method (referred to as “originated” loans) and loans acquired (referred to as “acquired” loans). Our commercial loan portfolio segment includes both business and commercial real estate loans. Our consumer portfolio segment includes residential real estate, home equity, indirect auto, credit cards, and other consumer loans.
	Our loans and leases receivable consisted of the following at the dates indicated:
		30-Sep-14										31-Dec-13
		Originated			Acquired			Total				Originated			Acquired			Total
	Commercial:
	Real estate	$	5,742		$	1,122		$	6,864			$	5,527		$	1,387		$	6,914
	Construction	1,148			2			1,150				828			36			864
	Business	5,468			368			5,836				4,876			414			5,290
	Total commercial	12,358			1,492			13,850				11,231			1,838			13,068
	Consumer:
	Residential real estate	2,030			1,330			3,361				1,902			1,546			3,448
	Home equity	1,781			1,105			2,887				1,618			1,134			2,752
	Indirect auto	2,074			—			2,074				1,544			—			1,544
	Credit cards	313			—			313				325			—			325
	Other consumer	286			—			286				302			—			302
	Total consumer	6,484			2,436			8,920				5,691			2,680			8,371
	Total loans and leases	18,842			3,928			22,770				16,922			4,517			21,440
	Allowance for loan losses	(227		)	(5		)	(231		)		(205		)	(4		)	(209		)
	Total loans and leases, net	$	18,615		$	3,923		$	22,538			$	16,717		$	4,514		$	21,230
	As of September 30, 2014 and December 31, 2013, we had a liability for unfunded loan commitments of $15 million and $13 million, respectively. For the nine months ended September 30, 2014 and 2013, we recognized provision for credit losses related to our unfunded loan commitments of $1 million.
	Of the $2.9 billion and $2.8 billion home equity portfolio at September 30, 2014 and December 31, 2013, respectively, $1.1 billion and $1.0 billion were in a first lien position at September 30, 2014 and December 31, 2013, respectively. We hold or service the first lien loan for approximately 10% of the remainder of the home equity portfolio that was in a second lien position as of September 30, 2014 and December 31, 2013.
	Acquired loan portfolios
	We have acquired loans in four acquisitions since January 1, 2009. All acquired loans were initially measured at fair value and subsequently accounted for under either Accounting Standards Codification Topic (“ASC”) 310-30 (Loans and Debt Securities Acquired with Deteriorated Credit Quality) or ASC 310-20 (Nonrefundable Fees and Other Costs.)
	The outstanding principal balance and the related carrying amount of our acquired loans included in our Consolidated Statements of Condition were as follows at the dates indicated:
		September 30,			December 31,
		2014			2013
	Credit impaired acquired loans evaluated individually for future credit losses
	Outstanding principal balance	$	13		$	18
	Carrying amount	8			12
	Acquired loans evaluated collectively for future credit losses
	Outstanding principal balance	2,718			3,301
	Carrying amount	2,661			3,233
	Other acquired loans
	Outstanding principal balance	1,296			1,321
	Carrying amount	1,260			1,273
	Total acquired loans
	Outstanding principal balance	4,028			4,640
	Carrying amount	3,928			4,517
	The following table presents changes in the accretable yield, which includes income recognized from contractual interest cash flows, for the dates indicated. Acquired lines of credit accounted for under ASC 310-20 are not included in this table.
	Balance at January 1, 2013	$	(1,057	)
	Net reclassifications from nonaccretable yield	(15		)
	Accretion	199
	Other (1)	22
	Balance at December 31, 2013	(851		)
	Reclassifications from nonaccretable yield	(5		)
	Accretion	108
	Other (1)	55
	Balance at September 30, 2014	$	(693	)
	(1)	Includes changes in expected cash flows from changes in interest rate and prepayment assumptions.
	During the nine months ended September 30, 2014 and 2013, we reduced our estimate of future cash flows on acquired loans to reflect our current outlook for prepayment speeds on these balances.  The increase in prepayment speed assumptions reduced our accretable discount by $55 million and $22 million, respectively.  These changes did not materially impact our interest income or net interest margin.
	Allowance for loan losses
	We establish our allowance for loan losses through a provision for credit losses based on our evaluation of the credit quality of our loan portfolio. We determined our allowance for loan losses by portfolio segment as defined above. For our originated loans, our allowance for loan losses consists of the following elements: (i) specific valuation allowances based on probable losses on specifically identified impaired loans; and (ii) valuation allowances based on net historical loan loss experience for similar loans with similar inherent risk characteristics and performance trends, adjusted, as appropriate for qualitative risk factors specific to respective loan types.
	We also maintain an allowance for loan losses on acquired loans when: (i) for loans accounted for under ASC 310-30, there is deterioration in credit quality subsequent to acquisition, and (ii) for loans accounted for under ASC 310-20, the inherent losses in the loans exceed the remaining credit discount recorded at the time of acquisition.
	Beginning in the second quarter of 2014, we raised our threshold for evaluating commercial loans individually for impairment from $200 thousand to $1 million. Impaired loans to commercial borrowers with outstandings less than $1 million are pooled and measured for impairment collectively. Additionally, all loans modified in a troubled debt restructuring ("TDR"), regardless of dollar size, are considered impaired. The impact of this change to our allowance for loan losses was not significant. This change is being implemented on a prospective basis, accordingly, prior period financial disclosures have not been revised.
	The following table presents the activity in our allowance for loan losses on originated loans and related recorded investment of the associated loans in our originated loan portfolio segment for the periods indicated:
		Commercial							Consumer
	Originated loans	Real estate			Business				Residential			Home equity			Indirect auto			Credit cards			Other			Total
																					consumer
	Nine months ended September 30, 2014
	Allowance for loan losses:
	Balance at beginning of period	$	47		$	120			$	2		$	7		$	10		$	13		$	6		$	205
Provision for loan losses	13			23				1			4			9			9			5			63
Charge-offs	(8		)	(16		)		(1		)	(3		)	(6		)	(10		)	(6		)	(51		)
Recoveries	3			2				—			1			1			1			1			10
Balance at end of period	$	54		$	129			$	2		$	9		$	13		$	13		$	6		$	227
Allowance for loan losses:
Individually evaluated for impairment	$	2		$	2			$	1		$	1		$	—		$	—		$	—		$	6
Collectively evaluated for impairment	53			127				1			7			13			13			5			221
Total	$	54		$	129			$	2		$	9		$	13		$	13		$	6		$	227
Loans receivable:
Balance at end of period
Individually evaluated for impairment	$	66		$	59			$	21		$	7		$	3		$	—		$	2		$	158
Collectively evaluated for impairment	6,824			5,409				2,009			1,775			2,071			313			284			18,684
Total	$	6,890		$	5,468			$	2,030		$	1,781		$	2,074		$	313		$	286		$	18,842
Nine months ended September 30, 2013
Allowance for loan losses:
Balance at beginning of period	$	38		$	99			$	5		$	5		$	3		$	7		$	5		$	161
Provision for loan losses	6			42				(2		)	3			6			8			6			68
Charge-offs	(6		)	(23		)		(1		)	(2		)	(2		)	(2		)	(6		)	(43		)
Recoveries	4			2				—			—			—			1			1			9
Balance at end of period	$	41		$	119			$	2		$	6		$	8		$	13		$	6		$	195
Allowance for loan losses:
Individually evaluated for impairment	$	2		$	5			$	1		$	2		$	—		$	—		$	—		$	10
Collectively evaluated for impairment	39			115				1			3			8			13			6			185
Total	$	41		$	119			$	2		$	6		$	8		$	13		$	6		$	195
Loans receivable:
Balance at end of period
Individually evaluated for impairment	$	82		$	58			$	20		$	6		$	1		$	—		$	2		$	170
Collectively evaluated for impairment	6,012			4,683				1,862			1,531			1,338			312			304			16,042
Total	$	6,094		$	4,741			$	1,883		$	1,537		$	1,339		$	312		$	306		$	16,212
	Commercial							Consumer
Originated loans	Real estate			Business				Residential			Home equity			Indirect auto			Credit cards			Other			Total
																				consumer
Three months ended September 30, 2014
Allowance for loan losses:
Balance at beginning of period	$	54		$	124			$	2		$	9		$	12		$	13		$	5		$	220
Provision for loan losses	3			9				—			—			3			3			2			20
Charge-offs	(2		)	(4		)		—			(1		)	(2		)	(3		)	(2		)	(15		)
Recoveries	—			1				—			—			—			—			—			2
Balance at end of period	$	54		$	129			$	2		$	9		$	13		$	13		$	6		$	227
Three months ended September 30, 2013
Allowance for loan losses:
Balance at beginning of period	$	43		$	107			$	3		$	6		$	6		$	13		$	6		$	182
Provision for loan losses	(3		)	22				—			1			3			2			2			25
Charge-offs	(2		)	(10		)		—			—			(1		)	(2		)	(2		)	(18		)
Recoveries	3			—				—			—			—			—			1			5
Balance at end of period	$	41		$	119			$	2		$	6		$	8		$	13		$	6		$	195
The following table presents the activity in our allowance for loan losses and related recorded investment of the associated loans in our acquired loan portfolio for the periods indicated:
	Commercial							Consumer
Acquired loans	Real estate			Business				Residential			Home equity			Credit cards			Other			Total
																	consumer
Nine months ended September 30, 2014
Allowance for loan losses:
Balance at beginning of period	$	—		$	—			$	1		$	3		$	—		$	—		$	4
Provision for loan losses	1			—				1			3			—			—			5
Charge-offs	(1		)	—				—			(3		)	—			—			(4		)
Recoveries	—			—				—			—			—			—			—
Balance at end of period	$	—		$	—			$	1		$	3		$	—		$	—		$	5
Allowance for loan losses:
Individually evaluated for impairment	$	—		$	—			$	—		$	—		$	—		$	—		$	—
Collectively evaluated for impairment	—			—				1			3			—			—			5
Total	$	—		$	—			$	1		$	3		$	—		$	—		$	5
Loans receivable:
Balance at end of period
Individually evaluated for impairment	$	—		$	2			$	—		$	4		$	—		$	—		$	6
Collectively evaluated for impairment	—			285				—			968			—			—			1,253
Loans acquired with deteriorated credit quality	1,124			81				1,330			133			—			—			2,668
Total	$	1,124		$	368			$	1,330		$	1,105		$	—		$	—		$	3,928
Nine months ended September 30, 2013
Allowance for loan losses:
Balance at beginning of period	$	—		$	—			$	—		$	—		$	—		$	1		$	2
Provision for loan losses	2			—				1			2			—			(1		)	4
Charge-offs	(2		)	—				—			—			—			(1		)	(2		)
Recoveries	—			—				—			—			—			—			—
Balance at end of period	$	—		$	—			$	1		$	2		$	—		$	—		$	3
Allowance for loan losses:
Individually evaluated for impairment	$	—		$	—			$	—		$	—		$	—		$	—		$	—
Collectively evaluated for impairment	—			—				1			2			—			—			3
Total	$	—		$	—			$	1		$	2		$	—		$	—		$	3
Loans receivable:
Balance at end of period
Individually evaluated for impairment	$	1		$	9			$	—		$	3		$	—		$	—		$	14
Collectively evaluated for impairment	—			339				—			975			—			4			1,318
Loans acquired with deteriorated credit quality	1,603			115				1,637			191			—			—			3,546
Total	$	1,604		$	464			$	1,637		$	1,170		$	—		$	4		$	4,878
	Commercial							Consumer
Acquired loans	Real estate			Business				Residential			Home equity			Credit cards			Other			Total
																	consumer
Three months ended September 30, 2014
Allowance for loan losses:
Balance at beginning of period	$	—		$	—			$	1		$	3		$	—		$	—		$	4
Provision for loan losses	—			—				1			—			—			—			1
Charge-offs	—			—				—			—			—			—			—
Recoveries	—			—				—			—			—			—			—
Balance at end of period	$	—		$	—			$	1		$	3		$	—		$	—		$	5
Three months ended September 30, 2013
Allowance for loan losses:
Balance at beginning of period	$	—		$	—			$	—		$	—		$	—		$	1		$	1
Provision for loan losses	—			—				1			2			—			(1		)	2
Charge-offs	—			—				—			—			—			—			—
Recoveries	—			—				—			—			—			—			—
Balance at end of period	$	—		$	—			$	1		$	2		$	—		$	—		$	3
Credit Quality
We monitor credit quality as indicated by various factors and utilize such information in our evaluation of the adequacy of the allowance for loan losses. The following sections discuss the various credit quality indicators that we consider.
Nonperforming loans
Our nonperforming loans consisted of the following at the dates indicated:
	September 30, 2014										December 31, 2013
	Originated			Acquired			Total				Originated			Acquired			Total
Commercial:
Real estate	$	57		$	—		$	57			$	53		$	1		$	54
Business	37			7			43				42			9			51
Total commercial	94			7			101				95			10			105
Consumer:
Residential real estate	36			—			36				31			—			31
Home equity	23			22			45				18			20			39
Indirect auto	12			—			12				6			—			6
Other consumer	5			—			5				6			—			6
Total consumer	77			22			99				62			20			82
Total	$	171		$	29		$	199			$	157		$	30		$	188
The table below provides information about the interest income that would have been recognized if our nonperforming loans had performed in accordance with terms for the periods indicated:
	Three months ended							Nine months ended
	September 30,							September 30,
	2014			2013				2014			2013
Additional interest income that would have been recorded if nonperforming loans had performed in accordance with original terms	$	2		$	2			$	6		$	5
Impaired loans
The following table provides information about our impaired originated loans including ending recorded investment, principal balance, and related allowance amount at the dates indicated. Loans with no related allowance for loan losses have adequate collateral securing their carrying value and in some circumstances have been charged down to their current carrying value based on the fair value of the collateral. The carrying value of our impaired loans, less any related allowance for loan losses, was 75% and 69% of the loans’ contractual principal balance at September 30, 2014 and December 31, 2013, respectively.
	30-Sep-14										31-Dec-13
Originated loans	Recorded			Unpaid			Related				Recorded			Unpaid			Related
	investment			principal			allowance				investment			principal			allowance
				balance										balance
With no related allowance recorded:
Commercial:
Real estate	$	21		$	40		$	—			$	48		$	63		$	—
Business	32			52			—				55			84			—
Total commercial	52			92			—				103			146			—
Consumer:
Residential real estate	14			15			—				12			12			—
Home equity	3			4			—				4			5			—
Indirect auto	1			1			—				1			1			—
Other consumer	1			1			—				1			1			—
Total consumer	19			22			—				18			20			—
Total	$	72		$	114		$	—			$	121		$	166		$	—
With a related allowance recorded:
Commercial:
Real estate	$	45		$	45		$	2			$	24		$	35		$	4
Business	28			29			2				4			6			2
Total commercial	72			74			4				28			41			5
Consumer:
Residential real estate	7			8			1				8			9			1
Home equity	3			4			1				4			5			3
Indirect auto	2			2			—				1			1			—
Other consumer	1			1			—				1			1			—
Total consumer	14			15			2				14			16			4
Total	$	86		$	89		$	6			$	42		$	57		$	9
Total
Commercial:
Real estate	$	66		$	85		$	2			$	72		$	97		$	4
Business	59			80			2				59			90			2
Total commercial	125			166			4				131			187			5
Consumer:
Residential real estate	21			23			1				20			21			1
Home equity	7			8			1				8			10			3
Indirect auto	3			4			—				1			2			—
Other consumer	2			3			—				3			3			—
Total consumer	33			37			2				32			36			4
Total	$	158		$	203		$	6			$	163		$	222		$	9
The following table provides information about our impaired acquired loans with no related allowance at the dates indicated. The remaining credit mark is considered adequate to cover any loss on these balances.
	30-Sep-14										31-Dec-13
Acquired loans	Recorded			Unpaid			Related				Recorded			Unpaid principal balance			Related
	investment			principal			allowance				investment						allowance
				balance
Commercial:
Real estate	$	—		$	—		$	—			$	1		$	4		$	—
Business	2			3			—				7			8			—
Total commercial	2			3			—				8			12			—
Consumer:
Residential real estate	—			—			—				—			—			—
Home equity	4			6			—				1			2			—
Other consumer	—			—			—				—			—			—
Total consumer	4			6			—				1			2			—
Total(1)	$	6		$	8		$	—			$	10		$	14		$	—
-1	Includes nonaccrual purchased credit impaired loans.
The following table provides information about our impaired originated loans including the average recorded investment and interest income recognized on impaired loans for the periods indicated:
	2014							2013
Originated loans	Average			Interest				Average			Interest
	recorded			income				recorded			income
	investment			recognized				investment			recognized
Nine months ended September 30,
Commercial:
Real estate	$	68		$	1			$	88		$	1
Business	56			1				59			1
Total commercial	124			2				147			2
Consumer:
Residential real estate	21			—				23			—
Home equity	7			—				6			—
Indirect auto	3			—				1			—
Other consumer	3			—				3			—
Total consumer	34			—				33			—
Total	$	157		$	2			$	181		$	2
Three months ended September 30,
Commercial:
Real estate	$	64		$	—			$	88		$	—
Business	59			—				60			—
Total commercial	124			1				148			1
Consumer:
Residential real estate	21			—				21			—
Home equity	7			—				6			—
Indirect auto	2			—				1			—
Other consumer	2			—				2			—
Total consumer	33			—				30			—
Total	$	156		$	1			$	178		$	1
The following table provides information about our impaired acquired loans including the average recorded investment and interest income recognized on impaired loans for the periods indicated:
	2014							2013
Acquired loans	Average			Interest				Average			Interest
	recorded			income				recorded			income
	investment			recognized				investment			recognized
Nine months ended September 30,
Commercial:
Real estate	$	—		$	—			$	1		$	—
Business	2			—				10			—
Total commercial	2			—				11			—
Consumer:
Residential real estate	—			—				—			—
Home equity	4			—				3			—
Other consumer	—			—				—			—
Total consumer	4			—				3			—
Total(1)	$	6		$	—			$	14		$	—
Three months ended September 30,
Commercial:
Real estate	$	—		$	—			$	1		$	—
Business	4			—				8			—
Total commercial	4			—				9			—
Consumer:
Residential real estate	—			—				—			—
Home equity	4			—				3			—
Other consumer	—			—				—			—
Total consumer	4			—				3			—
Total(1)	$	8		$	—			$	12		$	—
-1	Includes nonaccrual purchased credit impaired loans.
Period end nonaccrual loans differed from the amount of total impaired loans as certain TDRs, which are considered impaired loans, were accruing interest because the borrower demonstrated its ability to satisfy the terms of the restructured loan for at least six consecutive payments. Also contributing to the difference are nonaccrual commercial loans less than $1 million and nonaccrual consumer loans, which are not considered impaired unless they have been modified in a TDR as they are evaluated collectively when determining the allowance for loan losses.
The following table is a reconciliation between nonaccrual loans and impaired loans at the dates indicated:
	Commercial			Consumer			Total
30-Sep-14
Nonaccrual loans	$	101		$	99		$	199
Plus: Accruing TDRs	62			7			69
Less: Smaller balance nonaccrual loans evaluated collectively when determining the allowance for loan losses	(36		)	(69		)	(105		)
Total impaired loans(1)	$	127		$	37		$	164
December 31, 2013:
Nonaccrual loans	$	105		$	82		$	188
Plus: Accruing TDRs	45			8			52
Less: Smaller balance nonaccrual loans evaluated collectively when determining the allowance for loan losses	(11		)	(57		)	(67		)
Total impaired loans(1)	$	139		$	33		$	172
(1)	Includes nonaccrual purchased credit impaired loans.
Credit Quality Indicators
The primary indicators of credit quality are delinquency status and our internal loan gradings for our commercial loan portfolio segment and delinquency status and current FICO scores for our consumer loan portfolio segment.
The following tables contain an aging analysis of our loans by class at the dates indicated:
	30-59 days			60-89 days			Greater			Total			Current			Total loans			Greater than
	past due			past due			than			past due						receivable			90 days
							90 days												and accruing (1)
							past due
30-Sep-14
Originated loans
Commercial:
Real estate	$	8		$	5		$	39		$	51		$	6,838		$	6,890		$	—
Business	5			1			13			18			5,450			5,468			—
Total commercial	12			5			51			69			12,288			12,358			—
Consumer:
Residential real estate	4			1			22			27			2,003			2,030			—
Home equity	3			1			15			18			1,763			1,781			—
Indirect auto	17			3			5			25			2,049			2,074			—
Credit cards	2			1			2			5			307			313			2
Other consumer	3			1			3			7			279			286			—
Total consumer	28			8			47			82			6,402			6,484			2
Total	$	41		$	13		$	98		$	152		$	18,690		$	18,842		$	2
Acquired loans
Commercial:
Real estate	$	4		$	1		$	33		$	38		$	1,086		$	1,124		$	33
Business	1			—			8			9			359			368			5
Total commercial	6			1			41			47			1,445			1,492			37
	30-59 days			60-89 days			Greater			Total			Current			Total loans			Greater than
	past due			past due			than			past due						receivable			90 days
							90 days												and accruing (1)
							past due
Consumer:
Residential real estate	14			6			63			83			1,247			1,330			63
Home equity	5			3			20			29			1,076			1,105			6
Total consumer	19			10			83			112			2,323			2,436			69
Total	$	25		$	11		$	124		$	160		$	3,768		$	3,928		$	106
31-Dec-13
Originated loans
Commercial:
Real estate	$	5		$	2		$	27		$	34		$	6,321		$	6,354		$	—
Business	4			3			20			28			4,849			4,876			—
Total commercial	9			5			47			61			11,169			11,231			—
Consumer:
Residential real estate	6			2			21			30			1,872			1,902			—
Home equity	3			2			12			17			1,601			1,618			—
Indirect auto	12			2			3			18			1,526			1,544			—
Credit cards	2			1			3			6			319			325			3
Other consumer	3			1			3			7			295			302			—
Total consumer	27			9			43			79			5,613			5,691			3
Total	$	36		$	15		$	90		$	140		$	16,782		$	16,922		$	3
Acquired loans
Commercial:
Real estate	$	8		$	8		$	37		$	52		$	1,371		$	1,423		$	36
Business	2			1			8			11			403			414			5
Total commercial	10			8			45			63			1,774			1,838			41
Consumer:
Residential real estate	19			11			64			94			1,452			1,546			64
Home equity	7			4			20			31			1,103			1,134			5
Total consumer	26			15			84			125			2,555			2,680			70
Total	$	35		$	23		$	130		$	188		$	4,330		$	4,517		$	110
(1)	Includes credit card loans, loans that have matured and are in the process of collection, and acquired loans that were originally recorded at fair value upon acquisition. Acquired loans are considered to be accruing as we can reasonably estimate future cash flows on these acquired loans and we expect to fully collect the carrying value of these loans net of the allowance for acquired loan losses. Therefore, we are accreting the difference between the carrying value of these loans and their expected cash flows into interest income.
Our internal loan risk assessment provides information about the financial health of our commercial borrowers and our risk of potential loss. The following tables present information about the credit quality of our commercial loan portfolio at the dates indicated:
	Real estate			Business			Total			Percent of total
30-Sep-14
Originated loans:
Pass	$	6,507		$	5,108		$	11,614		93.9	%
Criticized:(1)
Accrual	326			323			649			5.3
Nonaccrual	57			37			94			0.8
Total criticized	383			360			743			6.1
Total	$	6,890		$	5,468		$	12,358		100	%
Acquired loans:
Pass	$	1,009		$	306		$	1,315		88.2	%
Criticized:(1)
Accrual	115			56			170			11.4
Nonaccrual	—			7			7			0.4
Total criticized	115			62			177			11.8
Total	$	1,124		$	368		$	1,492		100	%
31-Dec-13
Originated loans:
Pass	$	6,028		$	4,590		$	10,618		94.6	%
Criticized:(1)
Accrual	273			244			517			4.6
Nonaccrual	53			42			95			0.8
Total criticized	327			286			612			5.4
Total	$	6,354		$	4,876		$	11,231		100	%
Acquired loans:
Pass	$	1,260		$	359		$	1,619		88.2	%
Criticized:(1)
Accrual	162			46			208			11.3
Nonaccrual	1			9			10			0.5
Total criticized	163			55			218			11.8
Total	$	1,423		$	414		$	1,838		100	%
(1)	Includes special mention, substandard, doubtful, and loss, which are consistent with regulatory definitions, and as described in Item 1, “Business,” under “Asset Quality Review” in our Annual Report on 10-K for the year ended December 31, 2013.
Borrower FICO scores provide information about the credit quality of our consumer loan portfolio as they provide an indication as to the likelihood that a debtor will repay their debts. The scores are obtained from a nationally recognized consumer rating agency and are presented in the table below at the dates indicated:
	Residential			Home equity			Indirect auto			Credit cards			Other			Total			Percent of
	real estate												consumer						total
30-Sep-14
Originated loans by refreshed FICO score:
Over 700	$	1,781		$	1,473		$	1,454		$	216		$	171		$	5,096		78.6	%
660-700	120			171			338			52			47			729			11.2
620-660	57			72			161			23			24			337			5.2
580-620	33			31			60			11			14			149			2.3
Less than 580	32			31			61			7			12			143			2.2
No score(1)	8			2			—			3			18			32			0.5
Total	$	2,030		$	1,781		$	2,074		$	313		$	286		$	6,484		100	%
Acquired loans by refreshed FICO score:
Over 700	$	920		$	861		$	—		$	—		$	—		$	1,782		73.1	%
660-700	96			91			—			—			—			187			7.7
620-660	62			59			—			—			—			121			5
580-620	51			40			—			—			—			91			3.7
Less than 580	66			36			—			—			—			102			4.2
No score(1)	135			19			—			—			—			154			6.3
Total	$	1,330		$	1,105		$	—		$	—		$	—		$	2,436		100	%
31-Dec-13
Originated loans by refreshed FICO score:
Over 700	$	1,609		$	1,327		$	993		$	223		$	173		$	4,324		76	%
660-700	128			158			304			53			53			696			12.2
620-660	56			69			149			25			28			328			5.8
580-620	32			30			55			12			14			142			2.5
Less than 580	38			30			43			8			15			135			2.4
No score(1)	39			3			—			4			20			66			1.1
Total	$	1,902		$	1,618		$	1,544		$	325		$	302		$	5,691		100	%
Acquired loans by refreshed FICO score:
Over 700	$	1,074		$	874		$	—		$	—		$	—		$	1,948		72.7	%
660-700	115			103			—			—			—			218			8.1
620-660	61			57			—			—			—			119			4.4
580-620	57			39			—			—			—			95			3.6
Less than 580	75			40			—			—			—			114			4.3
No score(1)	164			21			—			—			—			185			6.9
Total	$	1,546		$	1,134		$	—		$	—		$	—		$	2,680		100	%
(1)	Primarily includes loans that are serviced by others for which refreshed FICO scores were not available as of the date indicated.
Troubled Debt Restructures
The following table details additional information about our TDRs at the dates indicated:
	September 30,			December 31,
	2014			2013
Aggregate recorded investment of impaired loans with terms modified through a troubled debt restructuring:
Accruing interest	$	69		$	52
Nonaccrual	55			56
Total troubled debt restructurings (1)	$	124		$	108
(1)	Includes 87 and 40 acquired loans that were restructured with a recorded investment of $4 million and $1 million at September 30, 2014 and December 31, 2013, respectively.
The modifications made to loans classified as TDRs typically consist of an extension of the payment terms, providing for a period with interest-only payments with deferred principal payments, rate reduction, or loans restructured in a Chapter 7 bankruptcy. We generally do not forgive principal when restructuring loans.
The financial effects of our modifications are as follows for the periods indicated:
Type of Concession	Count		Postmodification			Premodification			Postmodification
			recorded			allowance for			allowance for
			investment(1)			loan losses			loan losses
Nine months ended September 30, 2014
Commercial:
Commercial real estate
Extension of term	5		$	14		$	1		$	—
Extension of term and rate reduction	3		1			—			—
Commercial business
Extension of term	13		28			6			1
Extension of term and rate reduction	2		—			—			—
Total commercial	23		43			7			2
Consumer:
Residential real estate
Extension of term	4		—			—			—
Rate reduction	2		—			—			—
Deferral of principal and extension of term	7		1			—			—
Extension of term and rate reduction	7		—			—			—
Chapter 7 bankruptcy	14		1			—			—
Home equity
Extension of term	3		—			—			—
Deferral of principal and extension of term	2		—			—			—
Extension of term and rate reduction	7		—			—			—
Chapter 7 Bankruptcy	79		3			—			—
Indirect auto
Chapter 7 Bankruptcy	192		3			—			—
Other consumer
Chapter 7 Bankruptcy	33		—			—			—
Total consumer	350		10			—			—
Total	373		$	53		$	7		$	2
Type of Concession	Count		Postmodification			Premodification			Postmodification
			recorded			allowance for			allowance for
			investment(1)			loan losses			loan losses
Nine months ended September 30, 2013
Commercial:
Commercial real estate
Extension of term	5		$	9		$	1		$	1
Deferral of principal	1		8			—			—
Extension of term and rate reduction	6		16			1			—
Commercial business
Extension of term	9		10			2			—
Extension of term and rate reduction	7		1			—			—
Total commercial	28		44			4			1
Consumer:
Residential real estate
Extension of term	2		—			—			—
Rate reduction	3		—			—			—
Deferral of principal and extension of term	4		—			—			—
Extension of term and rate reduction	10		2			—			—
Chapter 7 Bankruptcy	12		1			—			—
Home equity
Deferral of principal and extension of term	1		—			—			—
Rate reduction	2		—			—			—
Extension of term and rate reduction	2		—			—			—
Chapter 7 Bankruptcy	50		2			—			—
Indirect auto
Chapter 7 Bankruptcy	73		2			—			—
Other consumer
Rate reduction	1		—			—			—
Extension of term and rate reduction	1		—			—			—
Chapter 7 Bankruptcy	39		—			—			—
Total consumer	200		7			—			—
Total	228		$	52		$	4		$	2
(1)	Postmodification balances approximate premodification balances. The aggregate amount of charge-offs as a result of the restructurings was not significant.
Type of Concession	Count		Postmodification			Premodification			Postmodification
			recorded			allowance for			allowance for
			investment(1)			loan losses			loan losses
Three months ended September 30, 2014
Commercial:
Commercial business
Extension of term	7		$	1		—			—
Total commercial	7		1			—			—
Consumer:
Residential real estate
Extension of term	1		—			—			—
Extension of term and rate reduction	3		—			—			—
Chapter 7 Bankruptcy	2		—			—			—
Home equity
Extension of term	2		—			—			—
Extension of term and rate reduction	2		—			—			—
Chapter 7 Bankruptcy	20		1			—			—
Indirect Auto
Chapter 7 Bankruptcy	35		1			—			—
Other consumer
Chapter 7 Bankruptcy	7		—			—			—
Total consumer	72		2			—			—
Total	79		$	4		$	—		$	—
Three months ended September 30, 2013
Commercial:
Commercial real estate
Extension of term	1		$	3		$	—		$	—
Commercial business
Extension of term	5		3			—			—
Extension of term and rate reduction	6		1			—			—
Total commercial	12		7			1			—
Consumer:
Residential real estate
Extension of term	1		$	—		$	—		$	—
Deferral of principal and extension of term	2		—			—			—
Extension of term and rate reduction	4		—			—			—
Chapter 7 Bankruptcy	4		—			—			—
Home equity
Rate reduction	1		—			—			—
Deferral of principal and extension of term	1		—			—			—
Extension of term and rate reduction	1		—			—			—
Chapter 7 Bankruptcy	17		1			—			—
Indirect auto
Chapter 7 Bankruptcy	27		1			—			—
Other consumer
Rate reduction	1		—			—			—
Extension of term and rate reduction	1		—			—			—
Chapter 7 Bankruptcy	13		—			—			—
Total consumer	73		2			—			—
Total	85		$	9		$	1		$	—
(1)	Postmodification balances approximate premodification balances. The aggregate amount of charge-offs as a result of the restructurings was not significant.
The recorded investment in loans modified as TDRs within 12 months of the balance sheet date and for which there was a payment default was $2 million and $0.1 million for the nine months ended September 30, 2014 and 2013, respectively.
Residential Mortgage Banking
The following table provides information about our residential mortgage banking activities at the dates indicated:
	September 30,
	2014			2013
Mortgages serviced for others	$	3,796		$	3,574
Mortgage servicing asset recorded for loans serviced for others, net	36			34

Goodwill_Goodwill

Goodwill Goodwill	9 Months Ended
	Sep. 30, 2014
Goodwill and Intangible Assets Disclosure [Abstract]	'
Goodwill Disclosure [Text Block]	'
	Goodwill
	The following table shows information regarding our goodwill for the periods indicated:
		Banking			Financial		Consolidated
					services		total
	Balances at January 1, 2013	$	2,416		$	68	$	2,484
	Purchase accounting adjustments(1)	(35		)	—		(35		)
	Balances at December 31, 2013	2,381			68		2,449
	Acquisitions	—			1		1
	Impairment	(1,100		)	—		(1,100		)
	Balances at September 30, 2014	$	1,281		$	69	$	1,350
	(1) Establishment of deferred tax assets in connection with the HSBC Branch Acquisition and our National City Bank branch acquisition.
	We perform our annual impairment test of goodwill on November 1st of each year or more often if events or circumstances have changed significantly from the annual test date.
	For the period ending September 30, 2014, we concluded it was more likely than not that the fair value of our Banking reporting unit was less than its carrying value including goodwill, given our current expectations regarding the macroeconomic and industry environment, including our view of future interest rates and our current stock price range. Accordingly, we performed a Step 1 review for possible goodwill impairment in advance of our annual impairment testing date.
	Under Step 1 of the goodwill impairment review, we calculated the fair value of the Banking reporting unit using a market approach, and compared the fair value to carrying value to identify potential impairment. Under Step 1, we determined that the carrying value of our Banking reporting unit exceeded its fair value. For Step 2, we compared the implied fair value of the Banking reporting unit's goodwill with the carrying amount of the goodwill for the Banking reporting unit.
	Based on our assessments under both Steps 1 and 2, we have recorded an impairment of our Banking reporting unit goodwill of $1.1 billion during the quarter ended September 30, 2014.

Derivative_Financial_Instrumen

Derivative Financial Instruments	9 Months Ended
	Sep. 30, 2014
Derivative Instruments and Hedging Activities Disclosure [Abstract]	'
Derivative Financial Instruments	'
	Derivative Financial Instruments
	We are a party to derivative financial instruments in the normal course of business to manage our own exposure to fluctuations in interest rates and to meet the needs of our customers. These financial instruments have been limited to interest rate swap agreements, which are entered into with counterparties that meet established credit standards and, where appropriate, contain master netting and collateral provisions protecting the party at risk. We believe that the credit risk inherent in all of our derivative contracts is minimal based on our credit standards and the netting and collateral provisions of the interest rate swap agreements.
	Our derivative positions include both instruments that are designated as hedging instruments and instruments that are customer related and not designated in hedging relationships. The following table presents information regarding our derivative financial instruments at the dates indicated:
		Asset derivatives					Liability derivatives
		Notional		Fair value  (1)			Notional			Fair value  (2)
		amount					amount
	30-Sep-14
	Derivatives designated as hedging instruments:
	Interest rate swap agreements	$	7	$	—		$	28		$	1
	Derivatives not designated as hedging instruments:
	Interest rate swap agreements	3,336		68			3,357			69
	Total derivatives	$	3,342	$	68		$	3,385		$	70
	31-Dec-13
	Derivatives designated as hedging instruments:
	Interest rate swap agreements	$	22	$	—		$	13		$	1
	Derivatives not designated as hedging instruments:
	Interest rate swap agreements	3,092		76			3,094			76
	Total derivatives	$	3,114	$	76		$	3,107		$	77
	(1)	Represents gross amounts, included in Other Assets in our Consolidated Statements of Condition.
	(2)	Represents gross amounts, included in Other Liabilities in our Consolidated Statements of Condition.
	Some of our interest rate swaps for which we had master netting arrangements with the counterparty were in a net liability position of $55 million and $49 million at September 30, 2014 and December 31, 2013, respectively. We offset $69 million and $76 million of liabilities with $14 million and $27 million of assets in our Consolidated Statement of Financial Condition at September 30, 2014 and December 31, 2013, respectively, related to these interest rate swaps and we did not include any cash collateral in the netting. We posted collateral for liability positions with a fair value of $80 million and $43 million at September 30, 2014 and December 31, 2013, respectively.
	Derivatives designated in hedging relationships
	We designate interest rate swap agreements used to manage changes in the fair value of loans due to interest rate changes as fair value hedges. We have designated the risk of changes in the fair value of loans attributable to changes in the benchmark rate as the hedged risk. Accordingly, changes to the fair value of the hedged items or derivatives attributable to a change in credit risk are excluded from our assessment of hedge effectiveness. The change in fair value of the derivatives, including both the effective and ineffective portions, is recognized in earnings and, so long as our fair value hedging relationships remain highly effective, such change is offset by the gain or loss due to the change in fair value of the loans. The net impact of the fair value hedging relationships on net income was not significant for the nine months ended September 30, 2014 and 2013.
	Historically, we have also entered into interest rate swaps to offset the variability in the interest cash outflows of LIBOR based borrowings. These derivative instruments have been designated as cash flow hedges. At September 30, 2014, we did not have any derivatives classified as cash flow hedges. At September 30, 2014, there was a $5 million loss recognized in accumulated other comprehensive income related to borrowings that were previously hedged using interest rate swaps that were classified as cash flow hedges. This amount will be reclassified out of accumulated other comprehensive income and into earnings over the remaining life of the hedged borrowings as an adjustment of yield.
	The following table presents certain information about amounts recognized for our derivative financial instruments designated in cash flow hedging relationships for the periods indicated.
		Three months ended September 30,						Nine months ended September 30,
	Cash Flow Hedges	2014			2013			2014				2013
	Interest rate swap agreements:
	Amount of gain on derivatives recognized in other comprehensive income, net of tax	$	—		$	—		$	—			$	1
	Amount of (loss) on derivatives reclassified from other comprehensive income to income	—		(1)	—		(1)	(1		)	(1)	(1		)	(1)
	(1)	Recognized in interest expense on borrowings in our Consolidated Statements of Operations.
	Derivatives not designated in hedging relationships
	In addition to our derivatives designated in hedge relationships, we act as an interest rate swap counterparty for certain commercial borrowers in the normal course of servicing our customers, which are accounted for at fair value. We manage our exposure to such interest rate swaps by entering into corresponding and offsetting interest rate swaps with third parties that mirror the terms of the interest rate swaps we have with the commercial borrowers. These positions (referred to as “customer swaps”) directly offset each other and our exposure is the positive fair value of the derivatives due to changes in credit risk of our commercial borrowers and third parties. We recognized revenue for this service that we provide our customers of $7 million and $14 million for the nine months ended September 30, 2014 and 2013, respectively, included in Capital Markets income in our Consolidated Statements of Operations.

Earnings_Per_Share

Earnings Per Share	9 Months Ended
	Sep. 30, 2014
Earnings Per Share [Abstract]	'
Earnings Per Share	'
	Earnings Per Share
	The following table is a computation of our basic and diluted earnings per share using the two-class method for the periods indicated:
		Three months ended September 30,						Nine months ended September 30,
		2014			2013			2014			2013
	Net (loss) income available to common stockholders	$	(931	)	$	72		$	(813	)	$	195
	Less income allocable to unvested restricted stock awards	—			—			1			1
	Net (loss) income allocable to common stockholders	$	(931	)	$	71		$	(813	)	$	194
	Weighted average common shares outstanding:
	Total shares issued	366			366			366			366
	Unallocated employee stock ownership plan shares	(2		)	(2		)	(2		)	(2		)
	Unvested restricted stock awards	(3		)	(2		)	(3		)	(2		)
	Treasury shares	(11		)	(12		)	(11		)	(13		)
	Total basic weighted average common shares outstanding	350			350			350			349
	Effect of dilutive stock-based awards	—			1			—			1
	Total diluted weighted average common shares outstanding	350			351			350			350
	Basic (loss) earnings per common share	$	(2.66	)	$	0.2		$	(2.32	)	$	0.55
	Diluted (loss) earnings per common share	$	(2.66	)	$	0.2		$	(2.32	)	$	0.55
	Anti-dilutive stock-based awards excluded from the diluted weighted average common share calculations	11			11			11			11

Other_Comprehensive_Income

Other Comprehensive Income	9 Months Ended
	Sep. 30, 2014
Equity [Abstract]	'
Other Comprehensive Income	'
	Other Comprehensive Loss
	The following table presents the activity in our Other Comprehensive Loss for the periods indicated:
		Three months ended September 30,										Nine months ended September 30,
		Pretax			Income			Net				Pretax			Income			Net
					taxes										taxes
	2014
	Securities available for sale:
	Net unrealized holding losses arising during the period	$	(51	)	$	(19	)	$	(31	)		$	(14	)	$	(5	)	$	(9	)
	Net unrealized holding gains on securities transferred between available for sale and held to maturity:
	Amortization of net unrealized holding gains to income during the period	(3		)	(1		)	(2		)	(1)	(10		)	(4		)	(6		)	(1)
	Interest rate swaps designated as cash flow hedges:
	Reclassification adjustment for realized losses included in net income	—			—			—			(2)	1			—			—			(2)
	Amortization of net loss related to pension and post-retirement plans	—			—			—				1			—			1
	Total other comprehensive loss	$	(54	)	$	(20	)	$	(33	)		$	(23	)	$	(9	)	$	(14	)
	2013
	Securities available for sale:
	Net unrealized holding losses arising during the period	$	(12	)	$	(4	)	$	(7	)		$	(156	)	$	(60	)	$	(96	)
	Reclassification adjustment for net unrealized holding gains on securities transferred between available for sale and held to maturity	—			—			—				(55		)	(21		)	(34		)
	Net unrealized losses on securities available for sale	(12		)	(4		)	(7		)		(211		)	(81		)	(130		)
	Net unrealized holding gains on securities transferred between available for sale and held to maturity:
	Net unrealized holding gains transferred during the period	—			—			—				55			21			34
	Amortization of net unrealized holding gains to income during the period	(6		)	(2		)	(4		)	(1)	(16		)	(6		)	(10		)	(1)
	Net unrealized holding (losses) gains on securities transferred during the period	(6		)	(2		)	(4		)		39			15			24
	Interest rate swaps designated as cash flow hedges:
	Reclassification adjustment for realized losses included in net income	—			—			—				1			—			1			(2)
	Total other comprehensive loss	$	(18	)	$	(7	)	$	(11	)		$	(171	)	$	(65	)	$	(105	)
	(1)	Included in Interest income on investment securities and other in our Consolidated Statement of Operations.
	(2)	Included in Interest expense on borrowings in our Consolidated Statement of Operations.
	The following table presents the activity in our accumulated other comprehensive income for the periods indicated:
		Net unrealized gains on securities available for sale			Net unrealized gains (losses) on			Unrealized loss on			Pension and postretirement plans			Total
					securities transferred from			interest rate
					available for sale to			swaps designated as
					held to maturity			cash flow hedges
	Balance, January 1, 2014	$	64		$	20		$	(6	)	$	(16	)	$	62
	Period change, net of tax	(9		)	(6		)	—			1			(14		)
	Balance, September 30, 2014	$	55		$	14		$	(5	)	$	(16	)	$	48
	Balance, January 1, 2013	$	207		$	(2	)	$	(6	)	$	(41	)	$	157
	Period change, net of tax	(130		)	24			1			—			(105		)
	Balance, September 30, 2013	$	77		$	22		$	(6	)	$	(41	)	$	52
	During the next twelve months, we expect to reclassify $1 million of pre-tax net loss on previous cash flow hedges from accumulated other comprehensive income to earnings.

Fair_Value_Measurements

Fair Value Measurements	9 Months Ended
	Sep. 30, 2014
Fair Value Disclosures [Abstract]	'
Fair Value Measurements	'
	Fair Value Measurements
	Fair value is defined as the price that would be received to sell an asset or paid to transfer a liability in an orderly transaction between market participants at the measurement date. Current accounting guidance establishes a fair value hierarchy based on the transparency of inputs participants use to price an asset or liability. The fair value hierarchy prioritizes these inputs into the following three levels:
	Level 1 Inputs—Unadjusted quoted prices in active markets for identical assets or liabilities that are available at the measurement date.
	Level 2 Inputs—Inputs, other than quoted prices included within Level 1, that are observable for the asset or liability, either directly or indirectly. These might include quoted prices for similar assets or liabilities in active markets, quoted prices for identical or similar assets or liabilities in markets that are not active, inputs other than quoted prices that are observable for the asset or liability (such as interest rates, volatilities, prepayment speeds, credit risks, etc.), or inputs that are derived principally from or corroborated by market data through correlation or other means.
	Level 3 Inputs—Unobservable inputs for determining the fair value of the asset or liability and are based on the entity’s own estimates about the assumptions that market participants would use to price the asset or liability.
	A financial instrument’s categorization within the valuation hierarchy is based on the lowest level of input that is significant to the fair value measurement. A description of the valuation methodologies used for instruments measured at fair value, as well as the general classification of such instruments pursuant to the valuation hierarchy, is set forth below.
	Our valuation methodologies may produce a fair value calculation that may not be indicative of net realizable value or reflective of future fair values. While we believe our valuation methodologies are appropriate and consistent with other market participants, the use of different methodologies or assumptions to determine the fair value of certain financial instruments could result in a different estimate of fair value.
	Assets and Liabilities Measured at Fair Value on a Recurring Basis
	Securities Available for Sale
	The fair value estimates of available for sale securities are based on quoted market prices of identical securities, where available (Level 1). However, as quoted prices of identical securities are not often available, the fair value estimate for almost our entire investment portfolio is based on quoted market prices of similar securities, adjusted for differences between the securities (Level 2). Adjustments may include amounts to reflect differences in underlying collateral, interest rates, estimated prepayment speeds, and counterparty credit quality. Where sufficient information is not available from the pricing services to produce a reliable valuation, we estimate fair value based on either broker quotes or internally developed models. We determine the fair value using third party pricing services, including brokers. As of September 30, 2014, none of our investment securities were priced utilizing broker quotes. For details regarding our pricing process and sources, refer to Item 2, “Management’s Discussion and Analysis of Financial Condition and Results of Income-Critical Accounting Policies and Estimates.”
	Loans held for sale
	We have elected the fair value option for certain residential real estate loans held for sale as we believe the fair value measurement of such loans reduces certain timing differences in our Statement of Operations and better aligns with our management of the portfolio from a business perspective. This election is made at the time of origination, on a loan by loan basis, and is irrevocable. The secondary market for securities backed by similar loan types is actively traded, which provides readily observable market pricing to be used as input for the estimate for the fair value of our loans. Accordingly, we have classified this fair value measurement as Level 2. Interest income on these loans is recognized in Interest Income—Loans and Leases in our Consolidated Statements of Operations.
	There were no loans held for sale for which we elected the fair value option that were nonaccrual or 90 or more days past due as of September 30, 2014 or December 31, 2013. The table below presents information about our loans held for sale for which we elected the fair value option at the dates indicated:
		September 30,		December 31,
		2014		2013
	Fair value carrying amount	$	30	$	50
	Aggregate unpaid principal balance	29		49
	Fair value carrying amount less aggregate unpaid principal balance	$	1	$	1
	Derivatives
	We obtain fair value measurements of our interest rate swaps from a third party. The fair value measurements are determined using a market standard methodology of netting discounted future fixed cash receipts (or payments) and the discounted expected variable cash payments (or receipts). Variable cash payments (or receipts) are based on an expectation of future interest rates derived from observable market interest rate curves. Credit valuation adjustments are incorporated to appropriately reflect our nonperformance risk as well as the counterparty’s nonperformance risk. The impact of netting and any applicable credit enhancements, such as bilateral collateral postings, thresholds, mutual puts, and guarantees are also considered in the fair value measurement.
	The fair value of our interest rate swaps was estimated using primarily Level 2 inputs. However, Level 3 inputs were used to determine credit valuation adjustments, such as estimates of current credit spreads to evaluate the likelihood of default. We have determined that the impact of these credit valuation adjustments was not significant to the overall valuation of our interest rate swaps. Therefore, we have classified the entire fair value of our interest rate swaps in Level 2 of the fair value hierarchy.
	Assets and Liabilities Measured at Fair Value on a Recurring Basis
	The following tables summarize our assets and liabilities measured at fair value on a recurring basis at the dates indicated:
		Fair Value Measurements
		Total		Level 1			Level 2			Level 3
	30-Sep-14
	Assets:
	Investment securities available for sale:
	Debt securities:
	States and political subdivisions	$	489	$	—		$	489		$	—
	U.S. Treasury	20		20			—			—
	U.S. government sponsored enterprises	155		—			155			—
	Corporate	829		—			824			4
	Total debt securities	1,493		20			1,469			4
	Mortgage-backed securities:
	Residential mortgage-backed securities:
	Government National Mortgage Association	36		—			36			—
	Federal National Mortgage Association	112		—			112			—
	Federal Home Loan Mortgage Corporation	128		—			128			—
	Collateralized mortgage obligations:
	Federal National Mortgage Association	707		—			707			—
	Federal Home Loan Mortgage Corporation	356		—			356			—
	Total collateralized mortgage obligations	1,062		—			1,062			—
	Total residential mortgage-backed securities	1,338		—			1,338			—
	Commercial mortgage-backed securities, non-agency issued	1,608		—			1,608			—
	Total mortgage-backed securities	2,946		—			2,946			—
	Collateralized loan obligations, non-agency issued	1,050		—			1,050			—
	Asset-backed securities collateralized by:
	Student loans	265		—			265			—
	Credit cards	62		—			62			—
	Auto loans	231		—			231			—
	Other	128		—			128			—
	Total asset-backed securities	687		—			687			—
	Other	22		21			1			—
	Total securities available for sale	6,198		42			6,152			4
	Loans held for sale (1)	30		—			30			—
	Derivatives	54		—			54			—
	Total assets	$	6,282	$	42		$	6,236		$	4
	Liabilities:
	Derivatives	$	56	$	—		$	56		$	—
	(1)	Represents loans for which we have elected the fair value option.
		Fair Value Measurements
		Total		Level 1			Level 2			Level 3
31-Dec-13
Assets:
Investment securities available for sale:
Debt securities:
States and political subdivisions	$	529	$	—		$	529		$	—
U.S. Treasury	20		20			—			—
U.S. government sponsored enterprises	312		—			312			—
Corporate	872		—			868			4
Total debt securities	1,734		20			1,709			4
Mortgage-backed securities:
Residential mortgage-backed securities:
Government National Mortgage Association	40		—			40			—
Federal National Mortgage Association	139		—			139			—
Federal Home Loan Mortgage Corporation	159		—			159			—
Collateralized mortgage obligations:
Federal National Mortgage Association	761		—			761			—
Federal Home Loan Mortgage Corporation	379		—			379			—
Non-agency issued	13		—			13			—
Total collateralized mortgage obligations	1,152		—			1,152			—
Total residential mortgage-backed securities	1,490		—			1,490			—
Commercial mortgage-backed securities, non-agency issued	1,831		—			1,831			—
Total mortgage-backed securities	3,321		—			3,321			—
Collateralized loan obligations, non-agency issued	1,431		—			1,431			—
Asset-backed securities collateralized by:
Student loans	312		—			312			—
Credit cards	73		—			73			—
Auto loans	335		—			335			—
Other	186		—			186			—
Total asset-backed securities	905		—			905			—
Other	33		22			10			—
Total securities available for sale	7,423		43			7,376			4
Loans held for sale (1)	50		—			50			—
Derivatives	49		—			49			—
Total assets	$	7,522	$	43		$	7,476		$	4
Liabilities:
Derivatives	$	50	$	—		$	50		$	—
(1)	Represents loans for which we have elected the fair value option.
Assets and Liabilities Measured at Fair Value on a Nonrecurring Basis
The following table summarizes our assets and liabilities measured at fair value on a nonrecurring basis for the periods indicated:
	Fair Value Measurements											Total gains
	Total		Level 1			Level 2			Level 3			(losses)
Nine months ended September 30, 2014
Collateral dependent impaired loans	$	11	$	—		$	10		$	1		$	—
Nine months ended September 30, 2013
Collateral dependent impaired loans	$	24	$	—		$	14		$	10		$	—
Collateral Dependent Impaired Loans
We record nonrecurring fair value adjustments to the carrying value of collateral dependent impaired loans when establishing the allowance for loan losses. Such amounts are generally based on the fair value of the underlying collateral supporting the loan less estimated costs to sell the collateral. When the fair value of such collateral, less costs to sell, is less than the carrying value of the loan, a specific allowance or charge off is recorded through a provision for credit losses. Real estate collateral is typically valued using independent appraisals that we review for acceptability, or other indications of value based on recent comparable sales of similar properties or assumptions generally observable in the marketplace and the related nonrecurring fair value measurements have been classified as Level 2. Under certain circumstances significant adjustments may be made to the appraised value due to the lack of direct marketplace information. Such adjustments are made as determined necessary in the judgment of our experienced senior credit officers to reflect current market conditions and current operating results for the specific collateral. When the fair value of collateral dependent impaired loans is based on appraisals containing significant adjustments, such collateral dependent impaired loans are classified as Level 3. We obtain new appraisals from an approved appraiser, in accordance with Interagency Appraisal and Evaluation Guidelines and internal policy. Appraisals or evaluations for assets securing substandard rated loans are usually completed within 90 days of the downgrade. An appraisal may be obtained more frequently when volatile or unusual market conditions exist that could affect the ultimate realization of the value of the real estate collateral.
During the nine months ended September 30, 2014, we recorded an increase of $0.3 million to our specific allowance as a result of adjusting the fair value of the collateral for certain collateral dependent impaired loans to $11 million at September 30, 2014, which is included in our provision for credit losses. During the nine months ended September 30, 2013 we recorded an increase of $0.4 million to our specific allowance as a result of adjusting the fair value of the collateral for certain collateral dependent impaired loans to $24 million at September 30, 2013, which is included in our provision for credit losses.
Level 3 Assets
The changes in Level 3 assets and liabilities measured at estimated fair value on a recurring basis were as follows for the periods indicated:
	Nine months ended September 30,
	2014			2013
	Trust			Trust			Collateralized			Total
	preferred			preferred			loan obligations
	securities			securities
Balance at beginning of period	$	4		$	14		$	1,545		$	1,559
Purchases	—			—			73			73
Settlements	—			(9		)	(159		)	(168		)
Gains included in other comprehensive income	—			1			7			8
Losses included in earnings	—			(1		)	—			(1		)
Balance at end of period	$	4		$	5		$	1,466		$	1,471
Due to the lack of observable market data, we have classified our trust preferred securities, which are included in corporate debt securities, in Level 3 of the fair value hierarchy.
Our collateralized loan obligations ("CLOs") are securitized products where payments from multiple middle sized and large business loans are pooled together and passed on to different classes of owners in various tranches. In 2013, the markets for such securities were generally characterized by low trading volumes and wide bid-ask spreads, all driven by more limited market participants. Although estimated prices were generally obtained for such securities, the level of market observable assumptions used was limited in the valuation. Specifically, market assumptions regarding credit adjusted cash flows and liquidity influences on discount rates were difficult to observe at the individual bond level. At September 30, 2013, our CLOs were classified in level 3 of the fair value hierarchy as fair values utilized significant unobservable inputs because observable market data was not available to incorporate into the pricing. The securities were valued either by a third party specialist using a discounted cash flow approach and proprietary pricing model or internally using similarly developed models. The models considered estimated prepayment speeds, losses, recoveries, default rates that are implied by the underlying performance of collateral in the structure or similar structures, and discount rates that are implied by market prices for similar securities and collateral structure types. During the fourth quarter of 2013, we transferred our CLOs from level 3 to level 2 of the fair value hierarchy based on increased trading activity and price transparency.
As of September 30, 2014 and December 31, 2013, the fair values of our trust preferred securities are based upon third party pricing without adjustment.
Fair Value of Financial Instruments
The carrying value and estimated fair value of our financial instruments, including those that are not measured and reported at fair value on a recurring basis or nonrecurring basis, at the dates indicated are as follows:
	30-Sep-14									31-Dec-13
	Carrying value		Estimated fair			Fair value				Carrying value			Estimated fair		Fair value
			value			level							value		level
Financial assets:
Cash and cash equivalents	$	451	$	451		1				$	463		$	463	1
Investment securities available for sale	6,198		6,198			1,2,3		(1)		7,423			7,423		1,2,3	(1)
Investment securities held to maturity	5,352		5,323			2				4,042			3,988		2
Federal Home Loan Bank and Federal Reserve Bank common stock	390		390			2				469			469		2
Loans held for sale	31		31			2				50			50		2
Loans and leases, net	22,538		22,807			2,3		(2)		21,230			21,774		2,3	(2)
Derivatives	54		54			2				49			49		2
Accrued interest receivable	106		106			2				103			103		2
Financial liabilities:
Deposits	$	27,670	$	27,683		2				$	26,665		$	26,695	2
Borrowings	5,662		5,710			2				5,556			5,599		2
Derivatives	56		56			2				50			50		2
Accrued interest payable	12		12			2				10			10		2
(1)	For a detailed breakout of our investment securities available for sale, refer to our table of recurring fair value measurements.
(2)	Loans and leases classified as level 2 are made up of $10 million and $20 million of collateral dependent impaired loans without significant adjustments made to appraised values at September 30, 2014 and December 31, 2013, respectively. All other loans and leases are classified as level 3.
Our fair value estimates are based on our existing on and off balance sheet financial instruments without attempting to estimate the value of any anticipated future business and the value of assets and liabilities that are not considered financial instruments. In addition, the tax ramifications related to the realization of the unrealized gains and losses can have a significant effect on our fair value estimates and have not been considered in these estimates.
Our fair value estimates are made as of the dates indicated, based on relevant market information and information about the financial instruments, including our judgments regarding future expected loss experience, current economic conditions, risk characteristics of various financial instruments, and other factors. These estimates are subjective in nature and involve uncertainties and matters of significant judgment and therefore cannot be determined with precision. Changes in our assumptions could significantly affect the estimates. Our fair value estimates, methods, and assumptions are set forth below for each type of financial instrument. The method of estimating the fair value of the financial instruments disclosed in the table above does not necessarily incorporate the exit price concept used to record financial instruments at fair value in our Consolidated Statements of Condition or when measuring goodwill for impairment.
Cash and Cash Equivalents
The carrying value of our cash and cash equivalents approximates fair value because these instruments have original maturities of three months or less.
Investment Securities
The fair value estimates of securities are based on quoted market prices of identical securities, where available. However, as quoted prices of identical securities are not often available, the fair value estimate for almost our entire investment portfolio is based on quoted market prices of similar securities, adjusted for differences between the securities. Adjustments may include amounts to reflect differences in underlying collateral, interest rates, estimated prepayment speeds, and counterparty credit quality.
Federal Home Loan Bank and Federal Reserve Bank Common Stock
The carrying value of our Federal Home Loan Bank and Federal Reserve Bank common stock, which are non-marketable equity investments, approximates fair value.
Loans and Leases
Our variable rate loans reprice as the associated rate index changes. The calculation of fair value for our variable rate loans is driven by the comparison between the loan’s margin and the prevailing margin observed in the market at the time of the valuation. Any caps and floors embedded in the loan’s pricing structure are also incorporated into the fair value. We calculated the fair value of our fixed-rate loans and leases by discounting scheduled cash flows through the estimated maturity using credit adjusted period end origination rates. Our estimate of maturity is based on the contractual cash flows adjusted for prepayment estimates based on current economic and lending conditions.
Accrued Interest Receivable and Accrued Interest Payable
The carrying value of accrued interest receivable and accrued interest payable approximates fair value.
Deposits
The fair value of our deposits with no stated maturity, such as savings and checking, as well as mortgagors’ payments held in escrow, is equal to the amount payable on demand. The fair value of our certificates of deposit is based on the discounted value of contractual cash flows, using the period end rates offered for deposits of similar remaining maturities.
Borrowings
The fair value of our borrowings is calculated by discounting scheduled cash flows through the estimated maturity using period end market rates for borrowings of similar remaining maturities.
Commitments
The fair value of our commitments to extend credit, standby letters of credit, and financial guarantees are not included in the above table as the carrying value generally approximates fair value. These instruments generate fees that approximate those currently charged to originate similar commitments.

Segment_Information

Segment Information	9 Months Ended
	Sep. 30, 2014
Segment Reporting [Abstract]	'
Segment Information	'
	Segment Information
	We have two business segments: banking and financial services. The banking segment includes all of our retail and commercial banking operations. The financial services segment includes our insurance operations. Substantially all of our assets relate to the banking segment. Transactions between our banking and financial services segments are eliminated in consolidation. Selected financial information for our segments follows for the periods indicated:
		Banking			Financial		Consolidated
					services		total
	Three months ended September 30, 2014
	Net interest income	$	273		$	—	$	273
	Provision for credit losses	21			—		21
	Net interest income after provision for credit losses	252			—		252
	Noninterest income	57			18		75
	Amortization of intangibles	6			1		7
	Goodwill impairment	1,100			—		1,100
	Other noninterest expense	276			14		290
	(Loss) income before income taxes	(1,073		)	3		(1,069		)
	Income tax (benefit) expense	(147		)	1		(146		)
	Net (loss) income	$	(925	)	$	2	$	(923	)
	Three months ended September 30, 2013
	Net interest income	$	278		$	—	$	278
	Provision for credit losses	28			—		28
	Net interest income after provision for credit losses	250			—		250
	Noninterest income	74			18		91
	Amortization of intangibles	7			1		8
	Other noninterest expense	210			13		223
	Income before income taxes	106			4		110
	Income tax expense	30			1		31
	Net income	$	77		$	2	$	79
	Nine months ended September 30, 2014
	Net interest income	$	816		$	—	$	816
	Provision for credit losses	69			—		69
	Net interest income after provision for credit losses	747			—		747
	Noninterest income	182			51		233
	Amortization of intangibles	19			2		21
	Goodwill impairment	1,100			—		1,100
	Other noninterest expense	726			43		769
	(Loss) income before income taxes	(916		)	6		(910		)
	Income tax (benefit) expense	(122		)	2		(120		)
	Net (loss) income	$	(794	)	$	4	$	(790	)
	Nine months ended September 30, 2013
	Net interest income	$	813		$	—	$	813
	Provision for credit losses	73			—		73
	Net interest income after provision for credit losses	740			—		740
	Noninterest income	224			52		276
	Amortization of intangibles	30			3		33
	Other noninterest expense	632			39		671
	Income before income taxes	302			10		312
	Income tax expense	91			4		95
	Net income	$	211		$	6	$	218

Condensed_Parent_Company_Only_

Condensed Parent Company Only Financial Statements Condensed Parent Company Only Financial Statements	9 Months Ended
	Sep. 30, 2014
Condensed Financial Information of Parent Company Only Disclosure [Abstract]	'
Condensed Financial Information of Parent Company Only Disclosure [Text Block]	'
	Condensed Parent Company Only Financial Statements
	The following condensed statements of condition, the related condensed statements of income, and cash flows should be read in conjunction with our Consolidated Financial Statements and related notes:
	Condensed Statements of Condition	September 30,			December 31,
		2014			2013
	Assets:
	Cash and cash equivalents	$	382		$	390
	Investment securities available for sale	1			3
	Loan receivable from ESOP	21			21
	Investment in subsidiary	4,361			5,255
	Deferred taxes	31			34
	Other assets	16			13
	Total assets	$	4,812		$	5,715
	Liabilities and Stockholders’ Equity:
	Accounts payable and other liabilities	$	12		$	13
	Borrowings	710			709
	Stockholders’ equity	4,090			4,993
	Total liabilities and stockholders’ equity	$	4,812		$	5,715
		Three months ended September 30,						Nine months ended September 30,
	Condensed Statements of Operations	2014			2013			2014			2013
	Interest income	$	—		$	—		$	1		$	1
	Dividends received from subsidiary	—			50			80			125
	Total interest and dividend income	—			50			81			126
	Interest expense	12			12			36			36
	Net interest income	(12		)	38			45			90
	Noninterest income	—			—			3			1
	Noninterest expense	7			6			22			23
	Income before income taxes and undisbursed income of subsidiary	(19		)	32			25			68
	Income tax benefit	(8		)	(6		)	(21		)	(22		)
	Income before undisbursed income of subsidiary	(10		)	39			47			91
	Undisbursed (loss) income of subsidiary	(913		)	41			(836		)	127
	Net (loss) income	(923		)	79			(790		)	218
	Preferred stock dividend	8			8			23			23
	Net (loss) income available to common stockholders	$	(931	)	$	72		$	(813	)	$	195
	Net (loss) income	$	(923	)	$	79		$	(790	)	$	218
	Other comprehensive loss(1)	(33		)	(11		)	(14		)	(105		)
	Total comprehensive (loss) income	$	(956	)	$	68		$	(804	)	$	112
	(1)	See Consolidated Statements of Comprehensive (Loss) Income for other comprehensive loss detail.
		Nine months ended September 30,
	Condensed Statements of Cash Flows	2014			2013
	Cash flows from operating activities:
	Net (loss) income	$	(790	)	$	218
	Adjustments to reconcile net (loss) income to net cash provided by operating activities:
	Undisbursed loss (income) of subsidiaries	836			(127		)
	Stock-based compensation expense	9			7
	Deferred income tax expense (benefit)	2			(17		)
	Decrease in other assets	(5		)	3
	Decrease in other liabilities	(1		)	(9		)
	Net cash provided by operating activities	51			75
	Cash flows from investing activities:
	Principal payments received on securities available for sale	—			1
	Purchases of securities available for sale	—			(2		)
	Proceeds from sales of securities available for sale	2			—
	Other, net	1			—
	Net cash provided by (used in) investing activities	3			(1		)
	Cash flows from financing activities:
	Return of capital from subsidiary	45			—
	Dividends paid on preferred stock	(23		)	(23		)
	Dividends paid on common stock	(85		)	(84		)
	Net cash used in financing activities	(62		)	(107		)
	Net decrease in cash and cash equivalents	(8		)	(34		)
	Cash and cash equivalents at beginning of period	390			415
	Cash and cash equivalents at end of period	$	382		$	381

Loans_and_Leases_Policies

Loans and Leases (Policies)	9 Months Ended
	Sep. 30, 2014
Receivables [Abstract]	'
Acquired Loans	'
	We have acquired loans in four acquisitions since January 1, 2009. All acquired loans were initially measured at fair value and subsequently accounted for under either Accounting Standards Codification Topic (“ASC”) 310-30 (Loans and Debt Securities Acquired with Deteriorated Credit Quality) or ASC 310-20 (Nonrefundable Fees and Other Costs.

Investment_Securities_Tables

Investment Securities (Tables)	9 Months Ended
	Sep. 30, 2014
Investments, Debt and Equity Securities [Abstract]	'
The amortized cost, gross unrealized gains and losses, and approximate fair value of investment securities	'
	The amortized cost, gross unrealized gains and losses, and fair value of our investment securities at the dates indicated are summarized as follows:
		Amortized		Unrealized			Unrealized			Fair
	30-Sep-14	cost		gains			losses			value
	Investment securities available for sale:
	Debt securities:
	States and political subdivisions	$	478	$	11		$	—		$	489
	U.S. Treasury	20		—			—			20
	U.S. government sponsored enterprises	151		5			—			155
	Corporate	824		15			(10		)	829
	Total debt securities	1,473		31			(10		)	1,493
	Mortgage-backed securities:
	Residential mortgage-backed securities:
	Government National Mortgage Association	36		1			(1		)	36
	Federal National Mortgage Association	107		5			—			112
	Federal Home Loan Mortgage Corporation	123		5			—			128
	Collateralized mortgage obligations:
	Federal National Mortgage Association	729		1			(23		)	707
	Federal Home Loan Mortgage Corporation	367		—			(11		)	356
	Total collateralized mortgage obligations	1,096		1			(34		)	1,062
	Total residential mortgage-backed securities	1,362		12			(35		)	1,338
	Commercial mortgage-backed securities, non-agency issued	1,550		58			—			1,608
	Total mortgage-backed securities	2,912		70			(36		)	2,946
	Collateralized loan obligations, non-agency issued	1,026		25			(1		)	1,050
	Asset-backed securities collateralized by:
	Student loans	258		8			—			265
	Credit cards	62		—			—			62
	Auto loans	229		2			—			231
	Other	128		1			(1		)	128
	Total asset-backed securities	677		11			(1		)	687
	Other	22		—			—			22
	Total securities available for sale	$	6,109	$	138		$	(48	)	$	6,198
	Investment securities held to maturity:
	Debt securities, U.S. government agencies	$	67	$	—		$	—		$	67
	Residential mortgage-backed securities:
	Government National Mortgage Association	12		—			—			13
	Federal National Mortgage Association	125		1			(1		)	124
	Federal Home Loan Mortgage Corporation	68		—			—			68
	Collateralized mortgage obligations:
	Government National Mortgage Association	1,875		23			(9		)	1,888
	Federal National Mortgage Association	1,586		2			(33		)	1,555
	Federal Home Loan Mortgage Corporation	1,618		18			(27		)	1,608
	Total collateralized mortgage obligations	5,079		42			(70		)	5,051
	Total residential mortgage-backed securities	5,285		43			(72		)	5,256
	Total securities held to maturity	$	5,352	$	43		$	(72	)	$	5,323
		Amortized		Unrealized			Unrealized			Fair
	31-Dec-13	cost		gains			losses			value
	Investment securities available for sale:
	Debt securities:
	States and political subdivisions	$	516	$	14		$	—		$	529
	U.S. Treasury	20		—			—			20
	U.S. government sponsored enterprises	306		7			(1		)	312
	Corporate	863		19			(11		)	872
	Total debt securities	1,705		40			(12		)	1,734
	Mortgage-backed securities:
	Residential mortgage-backed securities:
	Government National Mortgage Association	41		1			(2		)	40
	Federal National Mortgage Association	134		5			—			139
	Federal Home Loan Mortgage Corporation	154		5			—			159
	Collateralized mortgage obligations:
	Federal National Mortgage Association	797		—			(36		)	761
	Federal Home Loan Mortgage Corporation	396		—			(17		)	379
	Non-agency issued	12		1			—			13
	Total collateralized mortgage obligations	1,205		1			(54		)	1,152
Total residential mortgage-backed securities	1,534		12			(56		)	1,490
Commercial mortgage-backed securities, non-agency issued	1,759		74			(2		)	1,831
Total mortgage-backed securities	3,294		85			(58		)	3,321
Collateralized loan obligations, non-agency issued	1,392		40			(2		)	1,431
Asset-backed securities collateralized by:
Student loans	306		6			—			312
Credit cards	73		—			(1		)	73
Auto loans	331		4			—			335
Other	186		1			(1		)	186
Total asset-backed securities	896		11			(2		)	905
Other	33		1			—			33
Total securities available for sale	$	7,319	$	178		$	(74	)	$	7,423
Investment securities held to maturity:
Debt securities, U.S. government agencies	$	5	$	—		$	—		$	5
Residential mortgage-backed securities:
Government National Mortgage Association	17		—			—			17
Federal National Mortgage Association	146		—			(3		)	143
Federal Home Loan Mortgage Corporation	81		—			(1		)	81
Collateralized mortgage obligations:
Government National Mortgage Association	1,713		26			(12		)	1,727
Federal National Mortgage Association	1,074		—			(47		)	1,027
Federal Home Loan Mortgage Corporation	1,007		12			(30		)	989
Total collateralized mortgage obligations	3,793		39			(90		)	3,742
Total residential mortgage-backed securities	4,037		40			(94		)	3,983
Total securities held to maturity	$	4,042	$	40		$	(94	)	$	3,988
Investment securities in an unrealized loss position	'
	The table below details certain information regarding our investment securities that were in an unrealized loss position at the dates indicated by the length of time those securities were in a continuous loss position:
		Less than 12 months								12 months or longer						Total
		Fair		Unrealized						Fair		Unrealized				Fair		Unrealized
	30-Sep-14	value		losses			Count			value		losses			Count	value		losses			Count
	Investment securities available for sale:
	Debt securities:
	States and political subdivisions	$	14	$	—		19			$	1	$	—		6	$	16	$	—		25
	U.S. government sponsored enterprises	1		—			4			42		—			4	43		—			8
	Corporate	206		(4		)	133			108		(6		)	69	313		(10		)	202
	Total debt securities	221		(4		)	156			150		(6		)	79	371		(10		)	235
	Mortgage-backed securities:
	Residential mortgage-backed securities:
	Government National Mortgage Association	—		—			—			19		(1		)	5	19		(1		)	5
	Collateralized mortgage obligations:
	Federal National Mortgage Association	113		(1		)	8			527		(22		)	31	640		(23		)	39
	Federal Home Loan Mortgage Corporation	117		(3		)	6			223		(8		)	12	340		(11		)	18
	Total collateralized mortgage obligations	231		(4		)	14			750		(30		)	43	981		(34		)	57
	Total residential mortgage-backed securities	231		(4		)	14			769		(31		)	48	999		(35		)	62
	Commercial mortgage-backed securities, non-agency issued	21		—			5			24		—			3	45		—			8
	Total mortgage-backed securities	252		(4		)	19			793		(32		)	51	1,044		(36		)	70
	Collateralized loan obligations, non-agency issued	71		—			12			128		(1		)	12	199		(1		)	24
	Asset-backed securities collateralized by:
	Student loans	20		—			3			3		—			2	23		—			5
	Credit card	—		—			—			8		—			1	8		—			1
	Auto loans	3		—			2			—		—			—	3		—			2
	Other	—		—			—			53		(1		)	5	53		(1		)	5
	Total asset-backed securities	23		—			5			64		(1		)	8	87		(1		)	13
	Other	12		—			1			9		—			3	21		—			4
	Total securities available for sale in an unrealized loss position	$	579	$	(9	)	193			$	1,144	$	(39	)	153	$	1,722	$	(48	)	346
		Less than 12 months								12 months or longer						Total
		Fair		Unrealized						Fair		Unrealized				Fair		Unrealized
	30-Sep-14	value		losses			Count			value		losses			Count	value		losses			Count
	Investment securities held to maturity:
	Debt securities, U.S. government agencies	$	52	$	—		7			$	—	$	—		—	$	52	$	—		7
	Residential mortgage-backed securities:
	Government National Mortgage Association	5		—			1			3		—			2	7		—			3
	Federal National Mortgage Association	11		—			2			67		(1		)	16	79		(1		)	18
	Federal Home Loan Mortgage Corporation	26		—			7			21		—			6	47		—			13
	Collateralized mortgage obligations:
	Government National Mortgage Association	801		(8		)	78			51		(1		)	12	852		(9		)	90
	Federal National Mortgage Association	529		(4		)	36			654		(29		)	34	1,182		(33		)	70
	Federal Home Loan Mortgage Corporation	621		(8		)	43			431		(19		)	24	1,052		(27		)	67
	Total collateralized mortgage obligations	1,950		(20		)	157			1,136		(50		)	70	3,086		(70		)	227
	Total residential mortgage-backed securities	1,992		(20		)	167			1,227		(52		)	94	3,219		(72		)	261
	Total securities held to maturity in an unrealized loss position	$	2,044	$	(20	)	174			$	1,227	$	(52	)	94	$	3,271	$	(72	)	268
		Less than 12 months								12 months or longer						Total
		Fair		Unrealized						Fair		Unrealized				Fair		Unrealized
	31-Dec-13	value		losses			Count			value		losses			Count	value		losses			Count
	Investment securities available for sale:
	Debt securities:
	States and political subdivisions	$	13	$	—		25			$	3	$	—		7	$	16	$	—		32
	U.S. government sponsored enterprises	71		(1		)	11			2		—			2	73		(1		)	13
	Corporate	232		(8		)	165			74		(2		)	23	306		(11		)	188
	Total debt securities	315		(9		)	201			79		(2		)	32	394		(12		)	233
	Mortgage-backed securities:
	Residential mortgage-backed securities:
	Government National Mortgage Association	—		—			—			19		(2		)	6	19		(2		)	6
	Federal National Mortgage Association	—		—			3			—		—			3	1		—			6
	Collateralized mortgage obligations:
	Federal National Mortgage Association	744		(36		)	41			—		—			—	744		(36		)	41
	Federal Home Loan Mortgage Corporation	361		(17		)	19			—		—			—	361		(17		)	19
	Non-agency issued	1		—			3			—		—			—	1		—			3
	Total collateralized mortgage obligations	1,106		(54		)	63			—		—			—	1,106		(54		)	63
Total residential mortgage-backed securities	1,106		(54		)	66			19		(2		)	9	1,125		(56		)	75
Commercial mortgage-backed securities, non-agency issued	158		(2		)	15			12		—			3	170		(2		)	18
Total mortgage-backed securities	1,264		(56		)	81			32		(2		)	12	1,296		(58		)	93
Collateralized loan obligations, non-agency issued	261		(2		)	28			3		—			1	264		(2		)	29
Asset-backed securities collateralized by:
Student loans	67		—			8			—		—			—	67		—			8
Credit card	36		(1		)	4			—		—			—	36		(1		)	4
Auto loans	25		—			5			—		—			—	25		—			5
Other	72		(1		)	11			—		—			—	72		(1		)	11
Total asset-backed securities	200		(2		)	28			—		—			—	200		(2		)	28
Other	14		—			3			8		—			2	22		—			5
Total securities available for sale in an unrealized loss position	$	2,054	$	(69	)	341			$	122	$	(5	)	47	$	2,176	$	(74	)	388
	Less than 12 months								12 months or longer						Total
	Fair		Unrealized						Fair		Unrealized				Fair		Unrealized
31-Dec-13	value		losses			Count			value		losses			Count	value		losses			Count
Investment securities held to maturity:
Debt securities, U.S. government agencies	$	5	$	—		1			$	—	$	—		—	$	5	$	—		1
Residential mortgage-backed securities:
Government National Mortgage Association	11		—			4			—		—			—	11		—			4
Federal National Mortgage Association	119		(3		)	30			—		—			—	119		(3		)	30
Federal Home Loan Mortgage Corporation	59		(1		)	15			—		—			—	59		(1		)	15
Collateralized mortgage obligations:
Government National Mortgage Association	520		(12		)	58			—		—			—	520		(12		)	58
Federal National Mortgage Association	1,011		(47		)	59			—		—			—	1,011		(47		)	59
Federal Home Loan Mortgage Corporation	629		(30		)	35			22		(1		)	1	652		(30		)	36
Total collateralized mortgage obligations	2,160		(89		)	152			22		(1		)	1	2,182		(90		)	153
Total residential mortgage-backed securities	2,348		(94		)	201			22		(1		)	1	2,371		(94		)	202
Total securities held to maturity in an unrealized loss position	$	2,353	$	(94	)	202			$	22	$	(1	)	1	$	2,376	$	(94	)	203
Scheduled contractual maturities of investment securities	'
	Scheduled contractual maturities of our investment securities at September 30, 2014 were as follows:
		Amortized cost		Fair value
	Debt securities:
	Within one year	$	102	$	103
	After one year through five years	817		839
	After five years through ten years	601		600
	After ten years	20		19
	Total debt securities	1,540		1,561
	Mortgage-backed securities	8,196		8,202
	Collateralized loan obligations	1,026		1,050
	Asset-backed securities	677		687
	Other	22		22
		$	11,461	$	11,521

Loans_and_Leases_Tables

Loans and Leases (Tables)	9 Months Ended
	Sep. 30, 2014
Receivables [Abstract]	'
Summary of loans and leases	'
	Our loans and leases receivable consisted of the following at the dates indicated:
		30-Sep-14										31-Dec-13
		Originated			Acquired			Total				Originated			Acquired			Total
	Commercial:
	Real estate	$	5,742		$	1,122		$	6,864			$	5,527		$	1,387		$	6,914
	Construction	1,148			2			1,150				828			36			864
	Business	5,468			368			5,836				4,876			414			5,290
	Total commercial	12,358			1,492			13,850				11,231			1,838			13,068
	Consumer:
	Residential real estate	2,030			1,330			3,361				1,902			1,546			3,448
	Home equity	1,781			1,105			2,887				1,618			1,134			2,752
	Indirect auto	2,074			—			2,074				1,544			—			1,544
	Credit cards	313			—			313				325			—			325
	Other consumer	286			—			286				302			—			302
	Total consumer	6,484			2,436			8,920				5,691			2,680			8,371
	Total loans and leases	18,842			3,928			22,770				16,922			4,517			21,440
	Allowance for loan losses	(227		)	(5		)	(231		)		(205		)	(4		)	(209		)
	Total loans and leases, net	$	18,615		$	3,923		$	22,538			$	16,717		$	4,514		$	21,230
The outstanding principal balance and the related carrying amount of acquired loans	'
		September 30,			December 31,
		2014			2013
	Credit impaired acquired loans evaluated individually for future credit losses
	Outstanding principal balance	$	13		$	18
	Carrying amount	8			12
	Acquired loans evaluated collectively for future credit losses
	Outstanding principal balance	2,718			3,301
	Carrying amount	2,661			3,233
	Other acquired loans
	Outstanding principal balance	1,296			1,321
	Carrying amount	1,260			1,273
	Total acquired loans
	Outstanding principal balance	4,028			4,640
	Carrying amount	3,928			4,517
Changes in the accretable discount on loans acquired	'
	The following table presents changes in the accretable yield, which includes income recognized from contractual interest cash flows, for the dates indicated. Acquired lines of credit accounted for under ASC 310-20 are not included in this table.
	Balance at January 1, 2013	$	(1,057	)
	Net reclassifications from nonaccretable yield	(15		)
	Accretion	199
	Other (1)	22
	Balance at December 31, 2013	(851		)
	Reclassifications from nonaccretable yield	(5		)
	Accretion	108
	Other (1)	55
	Balance at September 30, 2014	$	(693	)
	(1)	Includes changes in expected cash flows from changes in interest rate and prepayment assumptions.
Activity in the allowance for credit losses	'
	The following table presents the activity in our allowance for loan losses on originated loans and related recorded investment of the associated loans in our originated loan portfolio segment for the periods indicated:
		Commercial							Consumer
	Originated loans	Real estate			Business				Residential			Home equity			Indirect auto			Credit cards			Other			Total
																					consumer
	Nine months ended September 30, 2014
	Allowance for loan losses:
	Balance at beginning of period	$	47		$	120			$	2		$	7		$	10		$	13		$	6		$	205
	Provision for loan losses	13			23				1			4			9			9			5			63
	Charge-offs	(8		)	(16		)		(1		)	(3		)	(6		)	(10		)	(6		)	(51		)
	Recoveries	3			2				—			1			1			1			1			10
	Balance at end of period	$	54		$	129			$	2		$	9		$	13		$	13		$	6		$	227
	Allowance for loan losses:
	Individually evaluated for impairment	$	2		$	2			$	1		$	1		$	—		$	—		$	—		$	6
	Collectively evaluated for impairment	53			127				1			7			13			13			5			221
	Total	$	54		$	129			$	2		$	9		$	13		$	13		$	6		$	227
	Loans receivable:
	Balance at end of period
	Individually evaluated for impairment	$	66		$	59			$	21		$	7		$	3		$	—		$	2		$	158
	Collectively evaluated for impairment	6,824			5,409				2,009			1,775			2,071			313			284			18,684
	Total	$	6,890		$	5,468			$	2,030		$	1,781		$	2,074		$	313		$	286		$	18,842
	Nine months ended September 30, 2013
	Allowance for loan losses:
	Balance at beginning of period	$	38		$	99			$	5		$	5		$	3		$	7		$	5		$	161
	Provision for loan losses	6			42				(2		)	3			6			8			6			68
	Charge-offs	(6		)	(23		)		(1		)	(2		)	(2		)	(2		)	(6		)	(43		)
	Recoveries	4			2				—			—			—			1			1			9
	Balance at end of period	$	41		$	119			$	2		$	6		$	8		$	13		$	6		$	195
	Allowance for loan losses:
	Individually evaluated for impairment	$	2		$	5			$	1		$	2		$	—		$	—		$	—		$	10
	Collectively evaluated for impairment	39			115				1			3			8			13			6			185
	Total	$	41		$	119			$	2		$	6		$	8		$	13		$	6		$	195
	Loans receivable:
	Balance at end of period
	Individually evaluated for impairment	$	82		$	58			$	20		$	6		$	1		$	—		$	2		$	170
	Collectively evaluated for impairment	6,012			4,683				1,862			1,531			1,338			312			304			16,042
	Total	$	6,094		$	4,741			$	1,883		$	1,537		$	1,339		$	312		$	306		$	16,212
		Commercial							Consumer
	Originated loans	Real estate			Business				Residential			Home equity			Indirect auto			Credit cards			Other			Total
																					consumer
	Three months ended September 30, 2014
	Allowance for loan losses:
	Balance at beginning of period	$	54		$	124			$	2		$	9		$	12		$	13		$	5		$	220
	Provision for loan losses	3			9				—			—			3			3			2			20
	Charge-offs	(2		)	(4		)		—			(1		)	(2		)	(3		)	(2		)	(15		)
	Recoveries	—			1				—			—			—			—			—			2
	Balance at end of period	$	54		$	129			$	2		$	9		$	13		$	13		$	6		$	227
	Three months ended September 30, 2013
	Allowance for loan losses:
	Balance at beginning of period	$	43		$	107			$	3		$	6		$	6		$	13		$	6		$	182
	Provision for loan losses	(3		)	22				—			1			3			2			2			25
	Charge-offs	(2		)	(10		)		—			—			(1		)	(2		)	(2		)	(18		)
	Recoveries	3			—				—			—			—			—			1			5
	Balance at end of period	$	41		$	119			$	2		$	6		$	8		$	13		$	6		$	195
	The following table presents the activity in our allowance for loan losses and related recorded investment of the associated loans in our acquired loan portfolio for the periods indicated:
		Commercial							Consumer
	Acquired loans	Real estate			Business				Residential			Home equity			Credit cards			Other			Total
																		consumer
	Nine months ended September 30, 2014
	Allowance for loan losses:
	Balance at beginning of period	$	—		$	—			$	1		$	3		$	—		$	—		$	4
	Provision for loan losses	1			—				1			3			—			—			5
	Charge-offs	(1		)	—				—			(3		)	—			—			(4		)
	Recoveries	—			—				—			—			—			—			—
Balance at end of period	$	—		$	—			$	1		$	3		$	—		$	—		$	5
Allowance for loan losses:
Individually evaluated for impairment	$	—		$	—			$	—		$	—		$	—		$	—		$	—
Collectively evaluated for impairment	—			—				1			3			—			—			5
Total	$	—		$	—			$	1		$	3		$	—		$	—		$	5
Loans receivable:
Balance at end of period
Individually evaluated for impairment	$	—		$	2			$	—		$	4		$	—		$	—		$	6
Collectively evaluated for impairment	—			285				—			968			—			—			1,253
Loans acquired with deteriorated credit quality	1,124			81				1,330			133			—			—			2,668
Total	$	1,124		$	368			$	1,330		$	1,105		$	—		$	—		$	3,928
Nine months ended September 30, 2013
Allowance for loan losses:
Balance at beginning of period	$	—		$	—			$	—		$	—		$	—		$	1		$	2
Provision for loan losses	2			—				1			2			—			(1		)	4
Charge-offs	(2		)	—				—			—			—			(1		)	(2		)
Recoveries	—			—				—			—			—			—			—
Balance at end of period	$	—		$	—			$	1		$	2		$	—		$	—		$	3
Allowance for loan losses:
Individually evaluated for impairment	$	—		$	—			$	—		$	—		$	—		$	—		$	—
Collectively evaluated for impairment	—			—				1			2			—			—			3
Total	$	—		$	—			$	1		$	2		$	—		$	—		$	3
Loans receivable:
Balance at end of period
Individually evaluated for impairment	$	1		$	9			$	—		$	3		$	—		$	—		$	14
Collectively evaluated for impairment	—			339				—			975			—			4			1,318
Loans acquired with deteriorated credit quality	1,603			115				1,637			191			—			—			3,546
Total	$	1,604		$	464			$	1,637		$	1,170		$	—		$	4		$	4,878
	Commercial							Consumer
Acquired loans	Real estate			Business				Residential			Home equity			Credit cards			Other			Total
																	consumer
Three months ended September 30, 2014
Allowance for loan losses:
Balance at beginning of period	$	—		$	—			$	1		$	3		$	—		$	—		$	4
Provision for loan losses	—			—				1			—			—			—			1
Charge-offs	—			—				—			—			—			—			—
Recoveries	—			—				—			—			—			—			—
Balance at end of period	$	—		$	—			$	1		$	3		$	—		$	—		$	5
Three months ended September 30, 2013
Allowance for loan losses:
Balance at beginning of period	$	—		$	—			$	—		$	—		$	—		$	1		$	1
Provision for loan losses	—			—				1			2			—			(1		)	2
Charge-offs	—			—				—			—			—			—			—
Recoveries	—			—				—			—			—			—			—
Balance at end of period	$	—		$	—			$	1		$	2		$	—		$	—		$	3
Summary of nonperforming loans	'
	Our nonperforming loans consisted of the following at the dates indicated:
		September 30, 2014										December 31, 2013
		Originated			Acquired			Total				Originated			Acquired			Total
	Commercial:
	Real estate	$	57		$	—		$	57			$	53		$	1		$	54
	Business	37			7			43				42			9			51
	Total commercial	94			7			101				95			10			105
	Consumer:
	Residential real estate	36			—			36				31			—			31
	Home equity	23			22			45				18			20			39
	Indirect auto	12			—			12				6			—			6
	Other consumer	5			—			5				6			—			6
	Total consumer	77			22			99				62			20			82
	Total	$	171		$	29		$	199			$	157		$	30		$	188
Additional interest income if loans were performing	'
	The table below provides information about the interest income that would have been recognized if our nonperforming loans had performed in accordance with terms for the periods indicated:
		Three months ended							Nine months ended
		September 30,							September 30,
		2014			2013				2014			2013
	Additional interest income that would have been recorded if nonperforming loans had performed in accordance with original terms	$	2		$	2			$	6		$	5
Summary of impaired loans	'
	The following table provides information about our impaired originated loans including ending recorded investment, principal balance, and related allowance amount at the dates indicated. Loans with no related allowance for loan losses have adequate collateral securing their carrying value and in some circumstances have been charged down to their current carrying value based on the fair value of the collateral. The carrying value of our impaired loans, less any related allowance for loan losses, was 75% and 69% of the loans’ contractual principal balance at September 30, 2014 and December 31, 2013, respectively.
		30-Sep-14										31-Dec-13
	Originated loans	Recorded			Unpaid			Related				Recorded			Unpaid			Related
		investment			principal			allowance				investment			principal			allowance
					balance										balance
	With no related allowance recorded:
	Commercial:
	Real estate	$	21		$	40		$	—			$	48		$	63		$	—
	Business	32			52			—				55			84			—
	Total commercial	52			92			—				103			146			—
	Consumer:
	Residential real estate	14			15			—				12			12			—
	Home equity	3			4			—				4			5			—
	Indirect auto	1			1			—				1			1			—
	Other consumer	1			1			—				1			1			—
	Total consumer	19			22			—				18			20			—
	Total	$	72		$	114		$	—			$	121		$	166		$	—
	With a related allowance recorded:
	Commercial:
	Real estate	$	45		$	45		$	2			$	24		$	35		$	4
	Business	28			29			2				4			6			2
	Total commercial	72			74			4				28			41			5
	Consumer:
	Residential real estate	7			8			1				8			9			1
	Home equity	3			4			1				4			5			3
	Indirect auto	2			2			—				1			1			—
	Other consumer	1			1			—				1			1			—
	Total consumer	14			15			2				14			16			4
	Total	$	86		$	89		$	6			$	42		$	57		$	9
	Total
	Commercial:
	Real estate	$	66		$	85		$	2			$	72		$	97		$	4
	Business	59			80			2				59			90			2
	Total commercial	125			166			4				131			187			5
	Consumer:
	Residential real estate	21			23			1				20			21			1
	Home equity	7			8			1				8			10			3
	Indirect auto	3			4			—				1			2			—
	Other consumer	2			3			—				3			3			—
	Total consumer	33			37			2				32			36			4
	Total	$	158		$	203		$	6			$	163		$	222		$	9
	The following table provides information about our impaired acquired loans with no related allowance at the dates indicated. The remaining credit mark is considered adequate to cover any loss on these balances.
		30-Sep-14										31-Dec-13
	Acquired loans	Recorded			Unpaid			Related				Recorded			Unpaid principal balance			Related
		investment			principal			allowance				investment						allowance
					balance
	Commercial:
	Real estate	$	—		$	—		$	—			$	1		$	4		$	—
	Business	2			3			—				7			8			—
	Total commercial	2			3			—				8			12			—
	Consumer:
	Residential real estate	—			—			—				—			—			—
	Home equity	4			6			—				1			2			—
	Other consumer	—			—			—				—			—			—
	Total consumer	4			6			—				1			2			—
	Total(1)	$	6		$	8		$	—			$	10		$	14		$	—
	-1	Includes nonaccrual purchased credit impaired loans.
	The following table provides information about our impaired originated loans including the average recorded investment and interest income recognized on impaired loans for the periods indicated:
		2014							2013
	Originated loans	Average			Interest				Average			Interest
		recorded			income				recorded			income
		investment			recognized				investment			recognized
	Nine months ended September 30,
Commercial:
Real estate	$	68		$	1			$	88		$	1
Business	56			1				59			1
Total commercial	124			2				147			2
Consumer:
Residential real estate	21			—				23			—
Home equity	7			—				6			—
Indirect auto	3			—				1			—
Other consumer	3			—				3			—
Total consumer	34			—				33			—
Total	$	157		$	2			$	181		$	2
Three months ended September 30,
Commercial:
Real estate	$	64		$	—			$	88		$	—
Business	59			—				60			—
Total commercial	124			1				148			1
Consumer:
Residential real estate	21			—				21			—
Home equity	7			—				6			—
Indirect auto	2			—				1			—
Other consumer	2			—				2			—
Total consumer	33			—				30			—
Total	$	156		$	1			$	178		$	1
The following table provides information about our impaired acquired loans including the average recorded investment and interest income recognized on impaired loans for the periods indicated:
	2014							2013
Acquired loans	Average			Interest				Average			Interest
	recorded			income				recorded			income
	investment			recognized				investment			recognized
Nine months ended September 30,
Commercial:
Real estate	$	—		$	—			$	1		$	—
Business	2			—				10			—
Total commercial	2			—				11			—
Consumer:
Residential real estate	—			—				—			—
Home equity	4			—				3			—
Other consumer	—			—				—			—
Total consumer	4			—				3			—
Total(1)	$	6		$	—			$	14		$	—
Three months ended September 30,
Commercial:
Real estate	$	—		$	—			$	1		$	—
Business	4			—				8			—
Total commercial	4			—				9			—
Consumer:
Residential real estate	—			—				—			—
Home equity	4			—				3			—
Other consumer	—			—				—			—
Total consumer	4			—				3			—
Total(1)	$	8		$	—			$	12		$	—
-1	Includes nonaccrual purchased credit impaired loans.
Reconciliation between nonaccrual loans and impaired loans	'
	The following table is a reconciliation between nonaccrual loans and impaired loans at the dates indicated:
		Commercial			Consumer			Total
	30-Sep-14
	Nonaccrual loans	$	101		$	99		$	199
	Plus: Accruing TDRs	62			7			69
	Less: Smaller balance nonaccrual loans evaluated collectively when determining the allowance for loan losses	(36		)	(69		)	(105		)
	Total impaired loans(1)	$	127		$	37		$	164
	December 31, 2013:
	Nonaccrual loans	$	105		$	82		$	188
	Plus: Accruing TDRs	45			8			52
	Less: Smaller balance nonaccrual loans evaluated collectively when determining the allowance for loan losses	(11		)	(57		)	(67		)
	Total impaired loans(1)	$	139		$	33		$	172
	(1)	Includes nonaccrual purchased credit impaired loans.
Aging analysis of loans	'
	The following tables contain an aging analysis of our loans by class at the dates indicated:
		30-59 days			60-89 days			Greater			Total			Current			Total loans			Greater than
		past due			past due			than			past due						receivable			90 days
								90 days												and accruing (1)
								past due
	30-Sep-14
	Originated loans
	Commercial:
	Real estate	$	8		$	5		$	39		$	51		$	6,838		$	6,890		$	—
	Business	5			1			13			18			5,450			5,468			—
	Total commercial	12			5			51			69			12,288			12,358			—
	Consumer:
	Residential real estate	4			1			22			27			2,003			2,030			—
	Home equity	3			1			15			18			1,763			1,781			—
	Indirect auto	17			3			5			25			2,049			2,074			—
	Credit cards	2			1			2			5			307			313			2
	Other consumer	3			1			3			7			279			286			—
	Total consumer	28			8			47			82			6,402			6,484			2
	Total	$	41		$	13		$	98		$	152		$	18,690		$	18,842		$	2
	Acquired loans
	Commercial:
	Real estate	$	4		$	1		$	33		$	38		$	1,086		$	1,124		$	33
	Business	1			—			8			9			359			368			5
	Total commercial	6			1			41			47			1,445			1,492			37
		30-59 days			60-89 days			Greater			Total			Current			Total loans			Greater than
		past due			past due			than			past due						receivable			90 days
								90 days												and accruing (1)
								past due
	Consumer:
	Residential real estate	14			6			63			83			1,247			1,330			63
	Home equity	5			3			20			29			1,076			1,105			6
	Total consumer	19			10			83			112			2,323			2,436			69
	Total	$	25		$	11		$	124		$	160		$	3,768		$	3,928		$	106
	31-Dec-13
	Originated loans
	Commercial:
	Real estate	$	5		$	2		$	27		$	34		$	6,321		$	6,354		$	—
	Business	4			3			20			28			4,849			4,876			—
	Total commercial	9			5			47			61			11,169			11,231			—
	Consumer:
	Residential real estate	6			2			21			30			1,872			1,902			—
	Home equity	3			2			12			17			1,601			1,618			—
	Indirect auto	12			2			3			18			1,526			1,544			—
	Credit cards	2			1			3			6			319			325			3
	Other consumer	3			1			3			7			295			302			—
	Total consumer	27			9			43			79			5,613			5,691			3
	Total	$	36		$	15		$	90		$	140		$	16,782		$	16,922		$	3
	Acquired loans
	Commercial:
	Real estate	$	8		$	8		$	37		$	52		$	1,371		$	1,423		$	36
	Business	2			1			8			11			403			414			5
	Total commercial	10			8			45			63			1,774			1,838			41
	Consumer:
	Residential real estate	19			11			64			94			1,452			1,546			64
	Home equity	7			4			20			31			1,103			1,134			5
	Total consumer	26			15			84			125			2,555			2,680			70
	Total	$	35		$	23		$	130		$	188		$	4,330		$	4,517		$	110
	(1)	Includes credit card loans, loans that have matured and are in the process of collection, and acquired loans that were originally recorded at fair value upon acquisition. Acquired loans are considered to be accruing as we can reasonably estimate future cash flows on these acquired loans and we expect to fully collect the carrying value of these loans net of the allowance for acquired loan losses. Therefore, we are accreting the difference between the carrying value of these loans and their expected cash flows into interest income.
Information about the credit quality of our commercial loan portfolio	'
	Our internal loan risk assessment provides information about the financial health of our commercial borrowers and our risk of potential loss. The following tables present information about the credit quality of our commercial loan portfolio at the dates indicated:
		Real estate			Business			Total			Percent of total
	30-Sep-14
	Originated loans:
	Pass	$	6,507		$	5,108		$	11,614		93.9	%
	Criticized:(1)
	Accrual	326			323			649			5.3
	Nonaccrual	57			37			94			0.8
	Total criticized	383			360			743			6.1
	Total	$	6,890		$	5,468		$	12,358		100	%
	Acquired loans:
	Pass	$	1,009		$	306		$	1,315		88.2	%
	Criticized:(1)
	Accrual	115			56			170			11.4
	Nonaccrual	—			7			7			0.4
	Total criticized	115			62			177			11.8
	Total	$	1,124		$	368		$	1,492		100	%
	31-Dec-13
	Originated loans:
	Pass	$	6,028		$	4,590		$	10,618		94.6	%
	Criticized:(1)
	Accrual	273			244			517			4.6
	Nonaccrual	53			42			95			0.8
	Total criticized	327			286			612			5.4
	Total	$	6,354		$	4,876		$	11,231		100	%
	Acquired loans:
	Pass	$	1,260		$	359		$	1,619		88.2	%
	Criticized:(1)
	Accrual	162			46			208			11.3
	Nonaccrual	1			9			10			0.5
	Total criticized	163			55			218			11.8
	Total	$	1,423		$	414		$	1,838		100	%
	(1)	Includes special mention, substandard, doubtful, and loss, which are consistent with regulatory definitions, and as described in Item 1, “Business,” under “Asset Quality Review” in our Annual Report on 10-K for the year ended December 31, 2013.
Information about the credit quality of our consumer loan portfolio	'
	Borrower FICO scores provide information about the credit quality of our consumer loan portfolio as they provide an indication as to the likelihood that a debtor will repay their debts. The scores are obtained from a nationally recognized consumer rating agency and are presented in the table below at the dates indicated:
		Residential			Home equity			Indirect auto			Credit cards			Other			Total			Percent of
		real estate												consumer						total
	30-Sep-14
	Originated loans by refreshed FICO score:
	Over 700	$	1,781		$	1,473		$	1,454		$	216		$	171		$	5,096		78.6	%
	660-700	120			171			338			52			47			729			11.2
	620-660	57			72			161			23			24			337			5.2
	580-620	33			31			60			11			14			149			2.3
	Less than 580	32			31			61			7			12			143			2.2
	No score(1)	8			2			—			3			18			32			0.5
	Total	$	2,030		$	1,781		$	2,074		$	313		$	286		$	6,484		100	%
	Acquired loans by refreshed FICO score:
	Over 700	$	920		$	861		$	—		$	—		$	—		$	1,782		73.1	%
	660-700	96			91			—			—			—			187			7.7
	620-660	62			59			—			—			—			121			5
	580-620	51			40			—			—			—			91			3.7
	Less than 580	66			36			—			—			—			102			4.2
	No score(1)	135			19			—			—			—			154			6.3
	Total	$	1,330		$	1,105		$	—		$	—		$	—		$	2,436		100	%
	31-Dec-13
	Originated loans by refreshed FICO score:
	Over 700	$	1,609		$	1,327		$	993		$	223		$	173		$	4,324		76	%
	660-700	128			158			304			53			53			696			12.2
	620-660	56			69			149			25			28			328			5.8
	580-620	32			30			55			12			14			142			2.5
	Less than 580	38			30			43			8			15			135			2.4
	No score(1)	39			3			—			4			20			66			1.1
	Total	$	1,902		$	1,618		$	1,544		$	325		$	302		$	5,691		100	%
	Acquired loans by refreshed FICO score:
	Over 700	$	1,074		$	874		$	—		$	—		$	—		$	1,948		72.7	%
	660-700	115			103			—			—			—			218			8.1
	620-660	61			57			—			—			—			119			4.4
	580-620	57			39			—			—			—			95			3.6
	Less than 580	75			40			—			—			—			114			4.3
	No score(1)	164			21			—			—			—			185			6.9
	Total	$	1,546		$	1,134		$	—		$	—		$	—		$	2,680		100	%
	(1)	Primarily includes loans that are serviced by others for which refreshed FICO scores were not available as of the date indicated.
Aggregate recorded investment of impaired loans with terms through troubled debt restructuring	'
	The following table details additional information about our TDRs at the dates indicated:
		September 30,			December 31,
		2014			2013
	Aggregate recorded investment of impaired loans with terms modified through a troubled debt restructuring:
	Accruing interest	$	69		$	52
	Nonaccrual	55			56
	Total troubled debt restructurings (1)	$	124		$	108
	(1)	Includes 87 and 40 acquired loans that were restructured with a recorded investment of $4 million and $1 million at September 30, 2014 and December 31, 2013, respectively.
Financial effects of our modifications	'
	The financial effects of our modifications are as follows for the periods indicated:
	Type of Concession	Count		Postmodification			Premodification			Postmodification
				recorded			allowance for			allowance for
				investment(1)			loan losses			loan losses
	Nine months ended September 30, 2014
	Commercial:
	Commercial real estate
	Extension of term	5		$	14		$	1		$	—
	Extension of term and rate reduction	3		1			—			—
	Commercial business
	Extension of term	13		28			6			1
	Extension of term and rate reduction	2		—			—			—
	Total commercial	23		43			7			2
	Consumer:
	Residential real estate
	Extension of term	4		—			—			—
	Rate reduction	2		—			—			—
	Deferral of principal and extension of term	7		1			—			—
	Extension of term and rate reduction	7		—			—			—
	Chapter 7 bankruptcy	14		1			—			—
	Home equity
	Extension of term	3		—			—			—
	Deferral of principal and extension of term	2		—			—			—
	Extension of term and rate reduction	7		—			—			—
	Chapter 7 Bankruptcy	79		3			—			—
	Indirect auto
	Chapter 7 Bankruptcy	192		3			—			—
	Other consumer
	Chapter 7 Bankruptcy	33		—			—			—
	Total consumer	350		10			—			—
	Total	373		$	53		$	7		$	2
	Type of Concession	Count		Postmodification			Premodification			Postmodification
				recorded			allowance for			allowance for
				investment(1)			loan losses			loan losses
	Nine months ended September 30, 2013
	Commercial:
	Commercial real estate
	Extension of term	5		$	9		$	1		$	1
	Deferral of principal	1		8			—			—
	Extension of term and rate reduction	6		16			1			—
	Commercial business
	Extension of term	9		10			2			—
	Extension of term and rate reduction	7		1			—			—
	Total commercial	28		44			4			1
	Consumer:
	Residential real estate
	Extension of term	2		—			—			—
	Rate reduction	3		—			—			—
	Deferral of principal and extension of term	4		—			—			—
	Extension of term and rate reduction	10		2			—			—
	Chapter 7 Bankruptcy	12		1			—			—
	Home equity
	Deferral of principal and extension of term	1		—			—			—
	Rate reduction	2		—			—			—
	Extension of term and rate reduction	2		—			—			—
	Chapter 7 Bankruptcy	50		2			—			—
	Indirect auto
	Chapter 7 Bankruptcy	73		2			—			—
	Other consumer
	Rate reduction	1		—			—			—
	Extension of term and rate reduction	1		—			—			—
	Chapter 7 Bankruptcy	39		—			—			—
	Total consumer	200		7			—			—
Total	228		$	52		$	4		$	2
(1)	Postmodification balances approximate premodification balances. The aggregate amount of charge-offs as a result of the restructurings was not significant.
Type of Concession	Count		Postmodification			Premodification			Postmodification
			recorded			allowance for			allowance for
			investment(1)			loan losses			loan losses
Three months ended September 30, 2014
Commercial:
Commercial business
Extension of term	7		$	1		—			—
Total commercial	7		1			—			—
Consumer:
Residential real estate
Extension of term	1		—			—			—
Extension of term and rate reduction	3		—			—			—
Chapter 7 Bankruptcy	2		—			—			—
Home equity
Extension of term	2		—			—			—
Extension of term and rate reduction	2		—			—			—
Chapter 7 Bankruptcy	20		1			—			—
Indirect Auto
Chapter 7 Bankruptcy	35		1			—			—
Other consumer
Chapter 7 Bankruptcy	7		—			—			—
Total consumer	72		2			—			—
Total	79		$	4		$	—		$	—
Three months ended September 30, 2013
Commercial:
Commercial real estate
Extension of term	1		$	3		$	—		$	—
Commercial business
Extension of term	5		3			—			—
Extension of term and rate reduction	6		1			—			—
Total commercial	12		7			1			—
Consumer:
Residential real estate
Extension of term	1		$	—		$	—		$	—
Deferral of principal and extension of term	2		—			—			—
Extension of term and rate reduction	4		—			—			—
Chapter 7 Bankruptcy	4		—			—			—
Home equity
Rate reduction	1		—			—			—
Deferral of principal and extension of term	1		—			—			—
Extension of term and rate reduction	1		—			—			—
Chapter 7 Bankruptcy	17		1			—			—
Indirect auto
Chapter 7 Bankruptcy	27		1			—			—
Other consumer
Rate reduction	1		—			—			—
Extension of term and rate reduction	1		—			—			—
Chapter 7 Bankruptcy	13		—			—			—
Total consumer	73		2			—			—
Total	85		$	9		$	1		$	—
(1)	Postmodification balances approximate premodification balances. The aggregate amount of charge-offs as a result of the restructurings was not significant.
Information about residential mortgage banking activities	'
	The following table provides information about our residential mortgage banking activities at the dates indicated:
		September 30,
		2014			2013
	Mortgages serviced for others	$	3,796		$	3,574
	Mortgage servicing asset recorded for loans serviced for others, net	36			34

Goodwill_Goodwill_Tables

Goodwill Goodwill (Tables)	9 Months Ended
	Sep. 30, 2014
Goodwill and Intangible Assets Disclosure [Abstract]	'
Information regarding our goodwill [Table Text Block]	'
		Banking			Financial		Consolidated
					services		total
	Balances at January 1, 2013	$	2,416		$	68	$	2,484
	Purchase accounting adjustments(1)	(35		)	—		(35		)
	Balances at December 31, 2013	2,381			68		2,449
	Acquisitions	—			1		1
	Impairment	(1,100		)	—		(1,100		)
	Balances at September 30, 2014	$	1,281		$	69	$	1,350
	(1) Establishment of deferred tax assets in connection with the HSBC Branch Acquisition and our National City Bank branch acquisition.

Derivative_Financial_Instrumen1

Derivative Financial Instruments (Tables)	9 Months Ended
	Sep. 30, 2014
Derivative Instruments and Hedging Activities Disclosure [Abstract]	'
Derivative financial instruments	'
	The following table presents information regarding our derivative financial instruments at the dates indicated:
		Asset derivatives					Liability derivatives
		Notional		Fair value  (1)			Notional			Fair value  (2)
		amount					amount
	30-Sep-14
	Derivatives designated as hedging instruments:
	Interest rate swap agreements	$	7	$	—		$	28		$	1
	Derivatives not designated as hedging instruments:
	Interest rate swap agreements	3,336		68			3,357			69
	Total derivatives	$	3,342	$	68		$	3,385		$	70
	31-Dec-13
	Derivatives designated as hedging instruments:
	Interest rate swap agreements	$	22	$	—		$	13		$	1
	Derivatives not designated as hedging instruments:
	Interest rate swap agreements	3,092		76			3,094			76
	Total derivatives	$	3,114	$	76		$	3,107		$	77
	(1)	Represents gross amounts, included in Other Assets in our Consolidated Statements of Condition.
	(2)	Represents gross amounts, included in Other Liabilities in our Consolidated Statements of Condition.
Amounts recognized for derivative financial instruments [Table Text Block]	'
	The following table presents certain information about amounts recognized for our derivative financial instruments designated in cash flow hedging relationships for the periods indicated.
		Three months ended September 30,						Nine months ended September 30,
	Cash Flow Hedges	2014			2013			2014				2013
	Interest rate swap agreements:
	Amount of gain on derivatives recognized in other comprehensive income, net of tax	$	—		$	—		$	—			$	1
	Amount of (loss) on derivatives reclassified from other comprehensive income to income	—		(1)	—		(1)	(1		)	(1)	(1		)	(1)
	(1)	Recognized in interest expense on borrowings in our Consolidated Statements of Operations.

Earnings_Per_Share_Tables

Earnings Per Share (Tables)	9 Months Ended
	Sep. 30, 2014
Earnings Per Share [Abstract]	'
Computation of basic and diluted earnings per share using two-class method	'
	The following table is a computation of our basic and diluted earnings per share using the two-class method for the periods indicated:
		Three months ended September 30,						Nine months ended September 30,
		2014			2013			2014			2013
	Net (loss) income available to common stockholders	$	(931	)	$	72		$	(813	)	$	195
	Less income allocable to unvested restricted stock awards	—			—			1			1
	Net (loss) income allocable to common stockholders	$	(931	)	$	71		$	(813	)	$	194
	Weighted average common shares outstanding:
	Total shares issued	366			366			366			366
	Unallocated employee stock ownership plan shares	(2		)	(2		)	(2		)	(2		)
	Unvested restricted stock awards	(3		)	(2		)	(3		)	(2		)
	Treasury shares	(11		)	(12		)	(11		)	(13		)
	Total basic weighted average common shares outstanding	350			350			350			349
	Effect of dilutive stock-based awards	—			1			—			1
	Total diluted weighted average common shares outstanding	350			351			350			350
	Basic (loss) earnings per common share	$	(2.66	)	$	0.2		$	(2.32	)	$	0.55
	Diluted (loss) earnings per common share	$	(2.66	)	$	0.2		$	(2.32	)	$	0.55
	Anti-dilutive stock-based awards excluded from the diluted weighted average common share calculations	11			11			11			11

Other_Comprehensive_Income_Tab

Other Comprehensive Income (Tables)	9 Months Ended
	Sep. 30, 2014
Equity [Abstract]	'
Schedule of Comprehensive Income (Loss)	'
	The following table presents the activity in our Other Comprehensive Loss for the periods indicated:
		Three months ended September 30,										Nine months ended September 30,
		Pretax			Income			Net				Pretax			Income			Net
					taxes										taxes
	2014
	Securities available for sale:
	Net unrealized holding losses arising during the period	$	(51	)	$	(19	)	$	(31	)		$	(14	)	$	(5	)	$	(9	)
	Net unrealized holding gains on securities transferred between available for sale and held to maturity:
	Amortization of net unrealized holding gains to income during the period	(3		)	(1		)	(2		)	(1)	(10		)	(4		)	(6		)	(1)
	Interest rate swaps designated as cash flow hedges:
	Reclassification adjustment for realized losses included in net income	—			—			—			(2)	1			—			—			(2)
	Amortization of net loss related to pension and post-retirement plans	—			—			—				1			—			1
	Total other comprehensive loss	$	(54	)	$	(20	)	$	(33	)		$	(23	)	$	(9	)	$	(14	)
	2013
	Securities available for sale:
	Net unrealized holding losses arising during the period	$	(12	)	$	(4	)	$	(7	)		$	(156	)	$	(60	)	$	(96	)
	Reclassification adjustment for net unrealized holding gains on securities transferred between available for sale and held to maturity	—			—			—				(55		)	(21		)	(34		)
	Net unrealized losses on securities available for sale	(12		)	(4		)	(7		)		(211		)	(81		)	(130		)
	Net unrealized holding gains on securities transferred between available for sale and held to maturity:
	Net unrealized holding gains transferred during the period	—			—			—				55			21			34
	Amortization of net unrealized holding gains to income during the period	(6		)	(2		)	(4		)	(1)	(16		)	(6		)	(10		)	(1)
	Net unrealized holding (losses) gains on securities transferred during the period	(6		)	(2		)	(4		)		39			15			24
	Interest rate swaps designated as cash flow hedges:
	Reclassification adjustment for realized losses included in net income	—			—			—				1			—			1			(2)
	Total other comprehensive loss	$	(18	)	$	(7	)	$	(11	)		$	(171	)	$	(65	)	$	(105	)
	(1)	Included in Interest income on investment securities and other in our Consolidated Statement of Operations.
	(2)	Included in Interest expense on borrowings in our Consolidated Statement of Operations.
Schedule of Accumulated Other Comprehensive Income (Loss)	'
	The following table presents the activity in our accumulated other comprehensive income for the periods indicated:
		Net unrealized gains on securities available for sale			Net unrealized gains (losses) on			Unrealized loss on			Pension and postretirement plans			Total
					securities transferred from			interest rate
					available for sale to			swaps designated as
					held to maturity			cash flow hedges
	Balance, January 1, 2014	$	64		$	20		$	(6	)	$	(16	)	$	62
	Period change, net of tax	(9		)	(6		)	—			1			(14		)
	Balance, September 30, 2014	$	55		$	14		$	(5	)	$	(16	)	$	48
	Balance, January 1, 2013	$	207		$	(2	)	$	(6	)	$	(41	)	$	157
	Period change, net of tax	(130		)	24			1			—			(105		)
	Balance, September 30, 2013	$	77		$	22		$	(6	)	$	(41	)	$	52

Fair_Value_Measurements_Tables

Fair Value Measurements (Tables)	9 Months Ended
	Sep. 30, 2014
Fair Value Disclosures [Abstract]	'
Fair value option quantitative disclosures	'
		September 30,		December 31,
		2014		2013
	Fair value carrying amount	$	30	$	50
	Aggregate unpaid principal balance	29		49
	Fair value carrying amount less aggregate unpaid principal balance	$	1	$	1
Summary of assets and liabilities measured at fair value on a recurring basis	'
		Fair Value Measurements
		Total		Level 1			Level 2			Level 3
	31-Dec-13
	Assets:
	Investment securities available for sale:
	Debt securities:
	States and political subdivisions	$	529	$	—		$	529		$	—
	U.S. Treasury	20		20			—			—
	U.S. government sponsored enterprises	312		—			312			—
	Corporate	872		—			868			4
	Total debt securities	1,734		20			1,709			4
	Mortgage-backed securities:
	Residential mortgage-backed securities:
	Government National Mortgage Association	40		—			40			—
	Federal National Mortgage Association	139		—			139			—
	Federal Home Loan Mortgage Corporation	159		—			159			—
	Collateralized mortgage obligations:
	Federal National Mortgage Association	761		—			761			—
	Federal Home Loan Mortgage Corporation	379		—			379			—
	Non-agency issued	13		—			13			—
	Total collateralized mortgage obligations	1,152		—			1,152			—
	Total residential mortgage-backed securities	1,490		—			1,490			—
	Commercial mortgage-backed securities, non-agency issued	1,831		—			1,831			—
	Total mortgage-backed securities	3,321		—			3,321			—
	Collateralized loan obligations, non-agency issued	1,431		—			1,431			—
	Asset-backed securities collateralized by:
	Student loans	312		—			312			—
	Credit cards	73		—			73			—
	Auto loans	335		—			335			—
	Other	186		—			186			—
	Total asset-backed securities	905		—			905			—
	Other	33		22			10			—
	Total securities available for sale	7,423		43			7,376			4
	Loans held for sale (1)	50		—			50			—
	Derivatives	49		—			49			—
	Total assets	$	7,522	$	43		$	7,476		$	4
	Liabilities:
	Derivatives	$	50	$	—		$	50		$	—
	(1)	Represents loans for which we have elected the fair value option
	The following tables summarize our assets and liabilities measured at fair value on a recurring basis at the dates indicated:
		Fair Value Measurements
		Total		Level 1			Level 2			Level 3
	30-Sep-14
	Assets:
	Investment securities available for sale:
	Debt securities:
	States and political subdivisions	$	489	$	—		$	489		$	—
	U.S. Treasury	20		20			—			—
	U.S. government sponsored enterprises	155		—			155			—
	Corporate	829		—			824			4
	Total debt securities	1,493		20			1,469			4
	Mortgage-backed securities:
	Residential mortgage-backed securities:
	Government National Mortgage Association	36		—			36			—
	Federal National Mortgage Association	112		—			112			—
	Federal Home Loan Mortgage Corporation	128		—			128			—
	Collateralized mortgage obligations:
	Federal National Mortgage Association	707		—			707			—
	Federal Home Loan Mortgage Corporation	356		—			356			—
	Total collateralized mortgage obligations	1,062		—			1,062			—
	Total residential mortgage-backed securities	1,338		—			1,338			—
	Commercial mortgage-backed securities, non-agency issued	1,608		—			1,608			—
	Total mortgage-backed securities	2,946		—			2,946			—
Collateralized loan obligations, non-agency issued	1,050		—			1,050			—
Asset-backed securities collateralized by:
Student loans	265		—			265			—
Credit cards	62		—			62			—
Auto loans	231		—			231			—
Other	128		—			128			—
Total asset-backed securities	687		—			687			—
Other	22		21			1			—
Total securities available for sale	6,198		42			6,152			4
Loans held for sale (1)	30		—			30			—
Derivatives	54		—			54			—
Total assets	$	6,282	$	42		$	6,236		$	4
Liabilities:
Derivatives	$	56	$	—		$	56		$	—
(1)	Represents loans for which we have elected the fair value option
Summary of assets and liabilities measured at fair value on a nonrecurring basis	'
	The following table summarizes our assets and liabilities measured at fair value on a nonrecurring basis for the periods indicated:
		Fair Value Measurements											Total gains
		Total		Level 1			Level 2			Level 3			(losses)
	Nine months ended September 30, 2014
	Collateral dependent impaired loans	$	11	$	—		$	10		$	1		$	—
	Nine months ended September 30, 2013
	Collateral dependent impaired loans	$	24	$	—		$	14		$	10		$	—
Changes in Level 3 assets and liabilities measured at estimated fair value on a recurring basis	'
	The changes in Level 3 assets and liabilities measured at estimated fair value on a recurring basis were as follows for the periods indicated:
		Nine months ended September 30,
		2014			2013
		Trust			Trust			Collateralized			Total
		preferred			preferred			loan obligations
		securities			securities
	Balance at beginning of period	$	4		$	14		$	1,545		$	1,559
	Purchases	—			—			73			73
	Settlements	—			(9		)	(159		)	(168		)
	Gains included in other comprehensive income	—			1			7			8
	Losses included in earnings	—			(1		)	—			(1		)
	Balance at end of period	$	4		$	5		$	1,466		$	1,471
Carrying value and estimated fair value of financial instruments	'
	The carrying value and estimated fair value of our financial instruments, including those that are not measured and reported at fair value on a recurring basis or nonrecurring basis, at the dates indicated are as follows:
		30-Sep-14									31-Dec-13
		Carrying value		Estimated fair			Fair value				Carrying value			Estimated fair		Fair value
				value			level							value		level
	Financial assets:
	Cash and cash equivalents	$	451	$	451		1				$	463		$	463	1
	Investment securities available for sale	6,198		6,198			1,2,3		(1)		7,423			7,423		1,2,3	(1)
	Investment securities held to maturity	5,352		5,323			2				4,042			3,988		2
	Federal Home Loan Bank and Federal Reserve Bank common stock	390		390			2				469			469		2
	Loans held for sale	31		31			2				50			50		2
	Loans and leases, net	22,538		22,807			2,3		(2)		21,230			21,774		2,3	(2)
	Derivatives	54		54			2				49			49		2
	Accrued interest receivable	106		106			2				103			103		2
	Financial liabilities:
	Deposits	$	27,670	$	27,683		2				$	26,665		$	26,695	2
	Borrowings	5,662		5,710			2				5,556			5,599		2
	Derivatives	56		56			2				50			50		2
	Accrued interest payable	12		12			2				10			10		2
	(1)	For a detailed breakout of our investment securities available for sale, refer to our table of recurring fair value measurements.
	(2)	Loans and leases classified as level 2 are made up of $10 million and $20 million of collateral dependent impaired loans without significant adjustments made to appraised values at September 30, 2014 and December 31, 2013, respectively. All other loans and leases are classified as level 3.

Segment_Information_Tables

Segment Information (Tables)	9 Months Ended
	Sep. 30, 2014
Segment Reporting [Abstract]	'
Financial information of business segments	'
	Selected financial information for our segments follows for the periods indicated:
		Banking			Financial		Consolidated
					services		total
	Three months ended September 30, 2014
	Net interest income	$	273		$	—	$	273
	Provision for credit losses	21			—		21
	Net interest income after provision for credit losses	252			—		252
	Noninterest income	57			18		75
	Amortization of intangibles	6			1		7
	Goodwill impairment	1,100			—		1,100
	Other noninterest expense	276			14		290
	(Loss) income before income taxes	(1,073		)	3		(1,069		)
	Income tax (benefit) expense	(147		)	1		(146		)
	Net (loss) income	$	(925	)	$	2	$	(923	)
	Three months ended September 30, 2013
	Net interest income	$	278		$	—	$	278
	Provision for credit losses	28			—		28
	Net interest income after provision for credit losses	250			—		250
	Noninterest income	74			18		91
	Amortization of intangibles	7			1		8
	Other noninterest expense	210			13		223
	Income before income taxes	106			4		110
	Income tax expense	30			1		31
	Net income	$	77		$	2	$	79
	Nine months ended September 30, 2014
	Net interest income	$	816		$	—	$	816
	Provision for credit losses	69			—		69
	Net interest income after provision for credit losses	747			—		747
	Noninterest income	182			51		233
	Amortization of intangibles	19			2		21
	Goodwill impairment	1,100			—		1,100
	Other noninterest expense	726			43		769
	(Loss) income before income taxes	(916		)	6		(910		)
	Income tax (benefit) expense	(122		)	2		(120		)
	Net (loss) income	$	(794	)	$	4	$	(790	)
	Nine months ended September 30, 2013
	Net interest income	$	813		$	—	$	813
	Provision for credit losses	73			—		73
	Net interest income after provision for credit losses	740			—		740
	Noninterest income	224			52		276
	Amortization of intangibles	30			3		33
	Other noninterest expense	632			39		671
	Income before income taxes	302			10		312
	Income tax expense	91			4		95
	Net income	$	211		$	6	$	218

Condensed_Parent_Company_Only_1

Condensed Parent Company Only Financial Statements Condensed Parent Company Only Financial Statements (Tables)	9 Months Ended
	Sep. 30, 2014
Condensed Financial Information of Parent Company Only Disclosure [Abstract]	'
Condensed Balance Sheet [Table Text Block]	'
	Condensed Statements of Condition	September 30,			December 31,
		2014			2013
	Assets:
	Cash and cash equivalents	$	382		$	390
	Investment securities available for sale	1			3
	Loan receivable from ESOP	21			21
	Investment in subsidiary	4,361			5,255
	Deferred taxes	31			34
	Other assets	16			13
	Total assets	$	4,812		$	5,715
	Liabilities and Stockholders’ Equity:
	Accounts payable and other liabilities	$	12		$	13
	Borrowings	710			709
	Stockholders’ equity	4,090			4,993
	Total liabilities and stockholders’ equity	$	4,812		$	5,715
Condensed Income Statement [Table Text Block]	'
		Three months ended September 30,						Nine months ended September 30,
	Condensed Statements of Operations	2014			2013			2014			2013
	Interest income	$	—		$	—		$	1		$	1
	Dividends received from subsidiary	—			50			80			125
	Total interest and dividend income	—			50			81			126
	Interest expense	12			12			36			36
	Net interest income	(12		)	38			45			90
	Noninterest income	—			—			3			1
	Noninterest expense	7			6			22			23
	Income before income taxes and undisbursed income of subsidiary	(19		)	32			25			68
	Income tax benefit	(8		)	(6		)	(21		)	(22		)
	Income before undisbursed income of subsidiary	(10		)	39			47			91
	Undisbursed (loss) income of subsidiary	(913		)	41			(836		)	127
	Net (loss) income	(923		)	79			(790		)	218
	Preferred stock dividend	8			8			23			23
	Net (loss) income available to common stockholders	$	(931	)	$	72		$	(813	)	$	195
	Net (loss) income	$	(923	)	$	79		$	(790	)	$	218
	Other comprehensive loss(1)	(33		)	(11		)	(14		)	(105		)
	Total comprehensive (loss) income	$	(956	)	$	68		$	(804	)	$	112
Condensed Cash Flow Statement [Table Text Block]	'
		Nine months ended September 30,
	Condensed Statements of Cash Flows	2014			2013
	Cash flows from operating activities:
	Net (loss) income	$	(790	)	$	218
	Adjustments to reconcile net (loss) income to net cash provided by operating activities:
	Undisbursed loss (income) of subsidiaries	836			(127		)
	Stock-based compensation expense	9			7
	Deferred income tax expense (benefit)	2			(17		)
	Decrease in other assets	(5		)	3
	Decrease in other liabilities	(1		)	(9		)
	Net cash provided by operating activities	51			75
	Cash flows from investing activities:
	Principal payments received on securities available for sale	—			1
	Purchases of securities available for sale	—			(2		)
	Proceeds from sales of securities available for sale	2			—
	Other, net	1			—
	Net cash provided by (used in) investing activities	3			(1		)
	Cash flows from financing activities:
	Return of capital from subsidiary	45			—
	Dividends paid on preferred stock	(23		)	(23		)
	Dividends paid on common stock	(85		)	(84		)
	Net cash used in financing activities	(62		)	(107		)
	Net decrease in cash and cash equivalents	(8		)	(34		)
	Cash and cash equivalents at beginning of period	390			415
	Cash and cash equivalents at end of period	$	382		$	381

Investment_Securities_Availabl

Investment Securities - Available for Sale and Held to Maturity Securities (Details) (USD $)	Sep. 30, 2014	Dec. 31, 2013
In Millions, unless otherwise specified
Schedule of available for sale securities [Line Items]	'	'
Amortized cost for securities available for sale	$6,109	$7,319
Securities available for sale, unrealized gains	138	178
Securities available for sale, unrealized losses	-48	-74
Investment securities available for sale	6,198	7,423
Investment securities held to maturity	5,352	4,042
Securities held to maturity, unrealized gains	43	40
Held to maturity securities, unrealized losses	-72	-94
Investment securities held to maturity	5,323	3,988
Residential mortgage-backed securities [Member]	'	'
Schedule of available for sale securities [Line Items]	'	'
Investment securities held to maturity	5,285	4,037
Securities held to maturity, unrealized gains	43	40
Held to maturity securities, unrealized losses	-72	-94
Investment securities held to maturity	5,256	3,983
Collateralized mortgage obligations [Member]	'	'
Schedule of available for sale securities [Line Items]	'	'
Investment securities held to maturity	5,079	3,793
Securities held to maturity, unrealized gains	42	39
Held to maturity securities, unrealized losses	-70	-90
Investment securities held to maturity	5,051	3,742
Government National Mortgage Association [Member] | Residential mortgage-backed securities [Member]	'	'
Schedule of available for sale securities [Line Items]	'	'
Investment securities held to maturity	12	17
Securities held to maturity, unrealized gains	0	0
Held to maturity securities, unrealized losses	0	0
Investment securities held to maturity	13	17
Government National Mortgage Association [Member] | Collateralized mortgage obligations [Member]	'	'
Schedule of available for sale securities [Line Items]	'	'
Investment securities held to maturity	1,875	1,713
Securities held to maturity, unrealized gains	23	26
Held to maturity securities, unrealized losses	-9	-12
Investment securities held to maturity	1,888	1,727
Federal National Mortgage Association [Member] | Residential mortgage-backed securities [Member]	'	'
Schedule of available for sale securities [Line Items]	'	'
Investment securities held to maturity	125	146
Securities held to maturity, unrealized gains	1	0
Held to maturity securities, unrealized losses	-1	-3
Investment securities held to maturity	124	143
Federal National Mortgage Association [Member] | Collateralized mortgage obligations [Member]	'	'
Schedule of available for sale securities [Line Items]	'	'
Investment securities held to maturity	1,586	1,074
Securities held to maturity, unrealized gains	2	0
Held to maturity securities, unrealized losses	-33	-47
Investment securities held to maturity	1,555	1,027
Federal Home Loan Mortgage Corporation [Member] | Residential mortgage-backed securities [Member]	'	'
Schedule of available for sale securities [Line Items]	'	'
Investment securities held to maturity	68	81
Securities held to maturity, unrealized gains	0	0
Held to maturity securities, unrealized losses	0	-1
Investment securities held to maturity	68	81
Federal Home Loan Mortgage Corporation [Member] | Collateralized mortgage obligations [Member]	'	'
Schedule of available for sale securities [Line Items]	'	'
Investment securities held to maturity	1,618	1,007
Securities held to maturity, unrealized gains	18	12
Held to maturity securities, unrealized losses	-27	-30
Investment securities held to maturity	1,608	989
U.S. government agencies debt securities [Member] | Debt Securities [Member]	'	'
Schedule of available for sale securities [Line Items]	'	'
Investment securities held to maturity	67	5
Securities held to maturity, unrealized gains	0	0
Held to maturity securities, unrealized losses	0	0
Investment securities held to maturity	67	5
Debt securities [Member]	'	'
Schedule of available for sale securities [Line Items]	'	'
Amortized cost for securities available for sale	1,473	1,705
Securities available for sale, unrealized gains	31	40
Securities available for sale, unrealized losses	-10	-12
Investment securities available for sale	1,493	1,734
Debt securities [Member] | States and political subdivisions [Member]	'	'
Schedule of available for sale securities [Line Items]	'	'
Amortized cost for securities available for sale	478	516
Securities available for sale, unrealized gains	11	14
Securities available for sale, unrealized losses	0	0
Investment securities available for sale	489	529
Debt securities [Member] | U.S. Treasury [Member]	'	'
Schedule of available for sale securities [Line Items]	'	'
Amortized cost for securities available for sale	20	20
Securities available for sale, unrealized gains	0	0
Securities available for sale, unrealized losses	0	0
Investment securities available for sale	20	20
Debt securities [Member] | U.S. government sponsored enterprises [Member]	'	'
Schedule of available for sale securities [Line Items]	'	'
Amortized cost for securities available for sale	151	306
Securities available for sale, unrealized gains	5	7
Securities available for sale, unrealized losses	0	-1
Investment securities available for sale	155	312
Debt securities [Member] | Corporate [Member]	'	'
Schedule of available for sale securities [Line Items]	'	'
Amortized cost for securities available for sale	824	863
Securities available for sale, unrealized gains	15	19
Securities available for sale, unrealized losses	-10	-11
Investment securities available for sale	829	872
Mortgage-backed securities [Member]	'	'
Schedule of available for sale securities [Line Items]	'	'
Amortized cost for securities available for sale	2,912	3,294
Securities available for sale, unrealized gains	70	85
Securities available for sale, unrealized losses	-36	-58
Investment securities available for sale	2,946	3,321
Residential mortgage-backed securities [Member]	'	'
Schedule of available for sale securities [Line Items]	'	'
Amortized cost for securities available for sale	1,362	1,534
Securities available for sale, unrealized gains	12	12
Securities available for sale, unrealized losses	-35	-56
Investment securities available for sale	1,338	1,490
Residential mortgage-backed securities [Member] | Government National Mortgage Association [Member]	'	'
Schedule of available for sale securities [Line Items]	'	'
Amortized cost for securities available for sale	36	41
Securities available for sale, unrealized gains	1	1
Securities available for sale, unrealized losses	-1	-2
Investment securities available for sale	36	40
Residential mortgage-backed securities [Member] | Federal National Mortgage Association [Member]	'	'
Schedule of available for sale securities [Line Items]	'	'
Amortized cost for securities available for sale	107	134
Securities available for sale, unrealized gains	5	5
Securities available for sale, unrealized losses	0	0
Investment securities available for sale	112	139
Residential mortgage-backed securities [Member] | Federal Home Loan Mortgage Corporation [Member]	'	'
Schedule of available for sale securities [Line Items]	'	'
Amortized cost for securities available for sale	123	154
Securities available for sale, unrealized gains	5	5
Securities available for sale, unrealized losses	0	0
Investment securities available for sale	128	159
Collateralized mortgage obligations [Member]	'	'
Schedule of available for sale securities [Line Items]	'	'
Amortized cost for securities available for sale	1,096	1,205
Securities available for sale, unrealized gains	1	1
Securities available for sale, unrealized losses	-34	-54
Investment securities available for sale	1,062	1,152
Collateralized mortgage obligations [Member] | Federal National Mortgage Association [Member]	'	'
Schedule of available for sale securities [Line Items]	'	'
Amortized cost for securities available for sale	729	797
Securities available for sale, unrealized gains	1	0
Securities available for sale, unrealized losses	-23	-36
Investment securities available for sale	707	761
Collateralized mortgage obligations [Member] | Federal Home Loan Mortgage Corporation [Member]	'	'
Schedule of available for sale securities [Line Items]	'	'
Amortized cost for securities available for sale	367	396
Securities available for sale, unrealized gains	0	0
Securities available for sale, unrealized losses	-11	-17
Investment securities available for sale	356	379
Collateralized mortgage obligations [Member] | Non-agency issued [Member]	'	'
Schedule of available for sale securities [Line Items]	'	'
Amortized cost for securities available for sale	'	12
Securities available for sale, unrealized gains	'	1
Securities available for sale, unrealized losses	'	0
Investment securities available for sale	'	13
Commercial mortgage-backed securities, non-agency issued [Member]	'	'
Schedule of available for sale securities [Line Items]	'	'
Amortized cost for securities available for sale	1,550	1,759
Securities available for sale, unrealized gains	58	74
Securities available for sale, unrealized losses	0	-2
Investment securities available for sale	1,608	1,831
Collateralized loan obligations, non-agency issued [Member]	'	'
Schedule of available for sale securities [Line Items]	'	'
Amortized cost for securities available for sale	1,026	1,392
Securities available for sale, unrealized gains	25	40
Securities available for sale, unrealized losses	-1	-2
Investment securities available for sale	1,050	1,431
Asset-backed securities [Member]	'	'
Schedule of available for sale securities [Line Items]	'	'
Amortized cost for securities available for sale	677	896
Securities available for sale, unrealized gains	11	11
Securities available for sale, unrealized losses	-1	-2
Investment securities available for sale	687	905
Asset-backed securities [Member] | Student Loans [Member]	'	'
Schedule of available for sale securities [Line Items]	'	'
Amortized cost for securities available for sale	258	306
Securities available for sale, unrealized gains	8	6
Securities available for sale, unrealized losses	0	0
Investment securities available for sale	265	312
Asset-backed securities [Member] | Credit cards [Member]	'	'
Schedule of available for sale securities [Line Items]	'	'
Amortized cost for securities available for sale	62	73
Securities available for sale, unrealized gains	0	0
Securities available for sale, unrealized losses	0	-1
Investment securities available for sale	62	73
Asset-backed securities [Member] | Auto Loans [Member]	'	'
Schedule of available for sale securities [Line Items]	'	'
Amortized cost for securities available for sale	229	331
Securities available for sale, unrealized gains	2	4
Securities available for sale, unrealized losses	0	0
Investment securities available for sale	231	335
Asset-backed securities [Member] | Other [Member]	'	'
Schedule of available for sale securities [Line Items]	'	'
Amortized cost for securities available for sale	128	186
Securities available for sale, unrealized gains	1	1
Securities available for sale, unrealized losses	-1	-1
Investment securities available for sale	128	186
Other securities [Member]	'	'
Schedule of available for sale securities [Line Items]	'	'
Amortized cost for securities available for sale	22	33
Securities available for sale, unrealized gains	0	1
Securities available for sale, unrealized losses	0	0
Investment securities available for sale	$22	$33

Investment_Securities_Availabl1

Investment Securities - Available for Sale and Held to Maturity Securities Continuous Unrealized Loss Position (Details) (USD $)	Sep. 30, 2014	Dec. 31, 2013
In Millions, unless otherwise specified	Security	Security
Schedule of available for sale securities [Line Items]	'	'
Fair value of available for sale securities in unrealized loss position less than 12 months	$579	$2,054
Available for sale securities in unrealized loss position less than 12 months, unrealized losses	-9	-69
Available for sale securities in unrealized loss position less than 12 months, count	193	341
Fair value of available for sale securities in unrealized loss position 12 months or longer	1,144	122
Available for sale securities in unrealized loss position 12 months or longer, unrealized losses	-39	-5
Available for sale securities in unrealized loss positions 12 months or longer, count	153	47
Total fair value available for sale securities	1,722	2,176
Available for sale securities in unrealized loss position, unrealized losses	-48	-74
Available for sale securities in unrealized loss positions, count	346	388
Fair value of held to maturity securities in unrealized loss position less than 12 months	2,044	2,353
Unrealized losses of held to maturity securities in unrealized loss position less than 12 months	-20	-94
Held to maturity securities in unrealized loss position less than 12 months, count	174	202
Fair value of held to maturity securities in unrealized loss position 12 months or longer	1,227	22
Unrealized losses of held to maturity securities in unrealized loss position 12 months or longer	-52	-1
Held to maturity securities in unrealized loss positions longer than 12 months, count	94	1
Total fair value of held to maturity securities	3,271	2,376
Total unrealized losses of held to maturity securities	-72	-94
Held to maturity securities in unrealized loss positions, count	268	203
Residential mortgage-backed securities [Member]	'	'
Schedule of available for sale securities [Line Items]	'	'
Fair value of held to maturity securities in unrealized loss position less than 12 months	1,992	2,348
Unrealized losses of held to maturity securities in unrealized loss position less than 12 months	-20	-94
Held to maturity securities in unrealized loss position less than 12 months, count	167	201
Fair value of held to maturity securities in unrealized loss position 12 months or longer	1,227	22
Unrealized losses of held to maturity securities in unrealized loss position 12 months or longer	-52	-1
Held to maturity securities in unrealized loss positions longer than 12 months, count	94	1
Total fair value of held to maturity securities	3,219	2,371
Total unrealized losses of held to maturity securities	-72	-94
Held to maturity securities in unrealized loss positions, count	261	202
Collateralized mortgage obligations [Member]	'	'
Schedule of available for sale securities [Line Items]	'	'
Fair value of held to maturity securities in unrealized loss position less than 12 months	1,950	2,160
Unrealized losses of held to maturity securities in unrealized loss position less than 12 months	-20	-89
Held to maturity securities in unrealized loss position less than 12 months, count	157	152
Fair value of held to maturity securities in unrealized loss position 12 months or longer	1,136	22
Unrealized losses of held to maturity securities in unrealized loss position 12 months or longer	-50	-1
Held to maturity securities in unrealized loss positions longer than 12 months, count	70	1
Total fair value of held to maturity securities	3,086	2,182
Total unrealized losses of held to maturity securities	-70	-90
Held to maturity securities in unrealized loss positions, count	227	153
Government National Mortgage Association [Member] | Residential mortgage-backed securities [Member]	'	'
Schedule of available for sale securities [Line Items]	'	'
Fair value of held to maturity securities in unrealized loss position less than 12 months	5	11
Unrealized losses of held to maturity securities in unrealized loss position less than 12 months	0	0
Held to maturity securities in unrealized loss position less than 12 months, count	1	4
Fair value of held to maturity securities in unrealized loss position 12 months or longer	3	0
Unrealized losses of held to maturity securities in unrealized loss position 12 months or longer	0	0
Held to maturity securities in unrealized loss positions longer than 12 months, count	2	0
Total fair value of held to maturity securities	7	11
Total unrealized losses of held to maturity securities	0	0
Held to maturity securities in unrealized loss positions, count	3	4
Government National Mortgage Association [Member] | Collateralized mortgage obligations [Member]	'	'
Schedule of available for sale securities [Line Items]	'	'
Fair value of held to maturity securities in unrealized loss position less than 12 months	801	520
Unrealized losses of held to maturity securities in unrealized loss position less than 12 months	-8	-12
Held to maturity securities in unrealized loss position less than 12 months, count	78	58
Fair value of held to maturity securities in unrealized loss position 12 months or longer	51	0
Unrealized losses of held to maturity securities in unrealized loss position 12 months or longer	-1	0
Held to maturity securities in unrealized loss positions longer than 12 months, count	12	0
Total fair value of held to maturity securities	852	520
Total unrealized losses of held to maturity securities	-9	-12
Held to maturity securities in unrealized loss positions, count	90	58
Federal National Mortgage Association Certificates and Obligations (FNMA) [Member] | Residential mortgage-backed securities [Member]	'	'
Schedule of available for sale securities [Line Items]	'	'
Fair value of held to maturity securities in unrealized loss position less than 12 months	11	119
Unrealized losses of held to maturity securities in unrealized loss position less than 12 months	0	-3
Held to maturity securities in unrealized loss position less than 12 months, count	2	30
Fair value of held to maturity securities in unrealized loss position 12 months or longer	67	0
Unrealized losses of held to maturity securities in unrealized loss position 12 months or longer	-1	0
Held to maturity securities in unrealized loss positions longer than 12 months, count	16	0
Total fair value of held to maturity securities	79	119
Total unrealized losses of held to maturity securities	-1	-3
Held to maturity securities in unrealized loss positions, count	18	30
Federal National Mortgage Association Certificates and Obligations (FNMA) [Member] | Collateralized mortgage obligations [Member]	'	'
Schedule of available for sale securities [Line Items]	'	'
Fair value of held to maturity securities in unrealized loss position less than 12 months	529	1,011
Unrealized losses of held to maturity securities in unrealized loss position less than 12 months	-4	-47
Held to maturity securities in unrealized loss position less than 12 months, count	36	59
Fair value of held to maturity securities in unrealized loss position 12 months or longer	654	0
Unrealized losses of held to maturity securities in unrealized loss position 12 months or longer	-29	0
Held to maturity securities in unrealized loss positions longer than 12 months, count	34	0
Total fair value of held to maturity securities	1,182	1,011
Total unrealized losses of held to maturity securities	-33	-47
Held to maturity securities in unrealized loss positions, count	70	59
Federal Home Loan Mortgage Corporation Certificates and Obligations (FHLMC) [Member] | Residential mortgage-backed securities [Member]	'	'
Schedule of available for sale securities [Line Items]	'	'
Fair value of held to maturity securities in unrealized loss position less than 12 months	26	59
Unrealized losses of held to maturity securities in unrealized loss position less than 12 months	0	-1
Held to maturity securities in unrealized loss position less than 12 months, count	7	15
Fair value of held to maturity securities in unrealized loss position 12 months or longer	21	0
Unrealized losses of held to maturity securities in unrealized loss position 12 months or longer	0	0
Held to maturity securities in unrealized loss positions longer than 12 months, count	6	0
Total fair value of held to maturity securities	47	59
Total unrealized losses of held to maturity securities	0	-1
Held to maturity securities in unrealized loss positions, count	13	15
Federal Home Loan Mortgage Corporation Certificates and Obligations (FHLMC) [Member] | Collateralized mortgage obligations [Member]	'	'
Schedule of available for sale securities [Line Items]	'	'
Fair value of held to maturity securities in unrealized loss position less than 12 months	621	629
Unrealized losses of held to maturity securities in unrealized loss position less than 12 months	-8	-30
Held to maturity securities in unrealized loss position less than 12 months, count	43	35
Fair value of held to maturity securities in unrealized loss position 12 months or longer	431	22
Unrealized losses of held to maturity securities in unrealized loss position 12 months or longer	-19	-1
Held to maturity securities in unrealized loss positions longer than 12 months, count	24	1
Total fair value of held to maturity securities	1,052	652
Total unrealized losses of held to maturity securities	-27	-30
Held to maturity securities in unrealized loss positions, count	67	36
Debt securities [Member]	'	'
Schedule of available for sale securities [Line Items]	'	'
Fair value of available for sale securities in unrealized loss position less than 12 months	221	315
Available for sale securities in unrealized loss position less than 12 months, unrealized losses	-4	-9
Available for sale securities in unrealized loss position less than 12 months, count	156	201
Fair value of available for sale securities in unrealized loss position 12 months or longer	150	79
Available for sale securities in unrealized loss position 12 months or longer, unrealized losses	-6	-2
Available for sale securities in unrealized loss positions 12 months or longer, count	79	32
Total fair value available for sale securities	371	394
Available for sale securities in unrealized loss position, unrealized losses	-10	-12
Available for sale securities in unrealized loss positions, count	235	233
Collateralized mortgage obligations [Member]	'	'
Schedule of available for sale securities [Line Items]	'	'
Fair value of available for sale securities in unrealized loss position less than 12 months	231	1,106
Available for sale securities in unrealized loss position less than 12 months, unrealized losses	-4	-54
Available for sale securities in unrealized loss position less than 12 months, count	14	63
Fair value of available for sale securities in unrealized loss position 12 months or longer	750	0
Available for sale securities in unrealized loss position 12 months or longer, unrealized losses	-30	0
Available for sale securities in unrealized loss positions 12 months or longer, count	43	0
Total fair value available for sale securities	981	1,106
Available for sale securities in unrealized loss position, unrealized losses	-34	-54
Available for sale securities in unrealized loss positions, count	57	63
Residential mortgage-backed securities [Member]	'	'
Schedule of available for sale securities [Line Items]	'	'
Fair value of available for sale securities in unrealized loss position less than 12 months	231	1,106
Available for sale securities in unrealized loss position less than 12 months, unrealized losses	-4	-54
Available for sale securities in unrealized loss position less than 12 months, count	14	66
Fair value of available for sale securities in unrealized loss position 12 months or longer	769	19
Available for sale securities in unrealized loss position 12 months or longer, unrealized losses	-31	-2
Available for sale securities in unrealized loss positions 12 months or longer, count	48	9
Total fair value available for sale securities	999	1,125
Available for sale securities in unrealized loss position, unrealized losses	-35	-56
Available for sale securities in unrealized loss positions, count	62	75
Commercial mortgage-backed securities, non-agency issued [Member]	'	'
Schedule of available for sale securities [Line Items]	'	'
Fair value of available for sale securities in unrealized loss position less than 12 months	21	158
Available for sale securities in unrealized loss position less than 12 months, unrealized losses	0	-2
Available for sale securities in unrealized loss position less than 12 months, count	5	15
Fair value of available for sale securities in unrealized loss position 12 months or longer	24	12
Available for sale securities in unrealized loss position 12 months or longer, unrealized losses	0	0
Available for sale securities in unrealized loss positions 12 months or longer, count	3	3
Total fair value available for sale securities	45	170
Available for sale securities in unrealized loss position, unrealized losses	0	-2
Available for sale securities in unrealized loss positions, count	8	18
Mortgage-backed securities [Member]	'	'
Schedule of available for sale securities [Line Items]	'	'
Fair value of available for sale securities in unrealized loss position less than 12 months	252	1,264
Available for sale securities in unrealized loss position less than 12 months, unrealized losses	-4	-56
Available for sale securities in unrealized loss position less than 12 months, count	19	81
Fair value of available for sale securities in unrealized loss position 12 months or longer	793	32
Available for sale securities in unrealized loss position 12 months or longer, unrealized losses	-32	-2
Available for sale securities in unrealized loss positions 12 months or longer, count	51	12
Total fair value available for sale securities	1,044	1,296
Available for sale securities in unrealized loss position, unrealized losses	-36	-58
Available for sale securities in unrealized loss positions, count	70	93
Collateralized loan obligations, non-agency issued [Member]	'	'
Schedule of available for sale securities [Line Items]	'	'
Fair value of available for sale securities in unrealized loss position less than 12 months	71	261
Available for sale securities in unrealized loss position less than 12 months, unrealized losses	0	-2
Available for sale securities in unrealized loss position less than 12 months, count	12	28
Fair value of available for sale securities in unrealized loss position 12 months or longer	128	3
Available for sale securities in unrealized loss position 12 months or longer, unrealized losses	-1	0
Available for sale securities in unrealized loss positions 12 months or longer, count	12	1
Total fair value available for sale securities	199	264
Available for sale securities in unrealized loss position, unrealized losses	-1	-2
Available for sale securities in unrealized loss positions, count	24	29
Asset-backed securities [Member]	'	'
Schedule of available for sale securities [Line Items]	'	'
Fair value of available for sale securities in unrealized loss position less than 12 months	23	200
Available for sale securities in unrealized loss position less than 12 months, unrealized losses	0	-2
Available for sale securities in unrealized loss position less than 12 months, count	5	28
Fair value of available for sale securities in unrealized loss position 12 months or longer	64	0
Available for sale securities in unrealized loss position 12 months or longer, unrealized losses	-1	0
Available for sale securities in unrealized loss positions 12 months or longer, count	8	0
Total fair value available for sale securities	87	200
Available for sale securities in unrealized loss position, unrealized losses	-1	-2
Available for sale securities in unrealized loss positions, count	13	28
Other securities [Member]	'	'
Schedule of available for sale securities [Line Items]	'	'
Fair value of available for sale securities in unrealized loss position less than 12 months	12	14
Available for sale securities in unrealized loss position less than 12 months, unrealized losses	0	0
Available for sale securities in unrealized loss position less than 12 months, count	1	3
Fair value of available for sale securities in unrealized loss position 12 months or longer	9	8
Available for sale securities in unrealized loss position 12 months or longer, unrealized losses	0	0
Available for sale securities in unrealized loss positions 12 months or longer, count	3	2
Total fair value available for sale securities	21	22
Available for sale securities in unrealized loss position, unrealized losses	0	0
Available for sale securities in unrealized loss positions, count	4	5
Student Loans [Member] | Asset-backed securities [Member]	'	'
Schedule of available for sale securities [Line Items]	'	'
Fair value of available for sale securities in unrealized loss position less than 12 months	20	67
Available for sale securities in unrealized loss position less than 12 months, unrealized losses	0	0
Available for sale securities in unrealized loss position less than 12 months, count	3	8
Fair value of available for sale securities in unrealized loss position 12 months or longer	3	0
Available for sale securities in unrealized loss position 12 months or longer, unrealized losses	0	0
Available for sale securities in unrealized loss positions 12 months or longer, count	2	0
Total fair value available for sale securities	23	67
Available for sale securities in unrealized loss position, unrealized losses	0	0
Available for sale securities in unrealized loss positions, count	5	8
Credit cards [Member] | Asset-backed securities [Member]	'	'
Schedule of available for sale securities [Line Items]	'	'
Fair value of available for sale securities in unrealized loss position less than 12 months	0	36
Available for sale securities in unrealized loss position less than 12 months, unrealized losses	0	-1
Available for sale securities in unrealized loss position less than 12 months, count	0	4
Fair value of available for sale securities in unrealized loss position 12 months or longer	8	0
Available for sale securities in unrealized loss position 12 months or longer, unrealized losses	0	0
Available for sale securities in unrealized loss positions 12 months or longer, count	1	0
Total fair value available for sale securities	8	36
Available for sale securities in unrealized loss position, unrealized losses	0	-1
Available for sale securities in unrealized loss positions, count	1	4
Auto Loans [Member] | Asset-backed securities [Member]	'	'
Schedule of available for sale securities [Line Items]	'	'
Fair value of available for sale securities in unrealized loss position less than 12 months	3	25
Available for sale securities in unrealized loss position less than 12 months, unrealized losses	0	0
Available for sale securities in unrealized loss position less than 12 months, count	2	5
Fair value of available for sale securities in unrealized loss position 12 months or longer	0	0
Available for sale securities in unrealized loss position 12 months or longer, unrealized losses	0	0
Available for sale securities in unrealized loss positions 12 months or longer, count	0	0
Total fair value available for sale securities	3	25
Available for sale securities in unrealized loss position, unrealized losses	0	0
Available for sale securities in unrealized loss positions, count	2	5
Other [Member] | Asset-backed securities [Member]	'	'
Schedule of available for sale securities [Line Items]	'	'
Fair value of available for sale securities in unrealized loss position less than 12 months	0	72
Available for sale securities in unrealized loss position less than 12 months, unrealized losses	0	-1
Available for sale securities in unrealized loss position less than 12 months, count	0	11
Fair value of available for sale securities in unrealized loss position 12 months or longer	53	0
Available for sale securities in unrealized loss position 12 months or longer, unrealized losses	-1	0
Available for sale securities in unrealized loss positions 12 months or longer, count	5	0
Total fair value available for sale securities	53	72
Available for sale securities in unrealized loss position, unrealized losses	-1	-1
Available for sale securities in unrealized loss positions, count	5	11
States and political subdivisions [Member] | Debt securities [Member]	'	'
Schedule of available for sale securities [Line Items]	'	'
Fair value of available for sale securities in unrealized loss position less than 12 months	14	13
Available for sale securities in unrealized loss position less than 12 months, unrealized losses	0	0
Available for sale securities in unrealized loss position less than 12 months, count	19	25
Fair value of available for sale securities in unrealized loss position 12 months or longer	1	3
Available for sale securities in unrealized loss position 12 months or longer, unrealized losses	0	0
Available for sale securities in unrealized loss positions 12 months or longer, count	6	7
Total fair value available for sale securities	16	16
Available for sale securities in unrealized loss position, unrealized losses	0	0
Available for sale securities in unrealized loss positions, count	25	32
US government agencies debt securities [Member] | Debt Securities [Member]	'	'
Schedule of available for sale securities [Line Items]	'	'
Fair value of held to maturity securities in unrealized loss position less than 12 months	52	5
Unrealized losses of held to maturity securities in unrealized loss position less than 12 months	0	0
Held to maturity securities in unrealized loss position less than 12 months, count	7	1
Fair value of held to maturity securities in unrealized loss position 12 months or longer	0	0
Unrealized losses of held to maturity securities in unrealized loss position 12 months or longer	0	0
Held to maturity securities in unrealized loss positions longer than 12 months, count	0	0
Total fair value of held to maturity securities	52	5
Total unrealized losses of held to maturity securities	0	0
Held to maturity securities in unrealized loss positions, count	7	1
U.S. government sponsored enterprises [Member] | Debt securities [Member]	'	'
Schedule of available for sale securities [Line Items]	'	'
Fair value of available for sale securities in unrealized loss position less than 12 months	1	71
Available for sale securities in unrealized loss position less than 12 months, unrealized losses	0	-1
Available for sale securities in unrealized loss position less than 12 months, count	4	11
Fair value of available for sale securities in unrealized loss position 12 months or longer	42	2
Available for sale securities in unrealized loss position 12 months or longer, unrealized losses	0	0
Available for sale securities in unrealized loss positions 12 months or longer, count	4	2
Total fair value available for sale securities	43	73
Available for sale securities in unrealized loss position, unrealized losses	0	-1
Available for sale securities in unrealized loss positions, count	8	13
Corporate [Member] | Debt securities [Member]	'	'
Schedule of available for sale securities [Line Items]	'	'
Fair value of available for sale securities in unrealized loss position less than 12 months	206	232
Available for sale securities in unrealized loss position less than 12 months, unrealized losses	-4	-8
Available for sale securities in unrealized loss position less than 12 months, count	133	165
Fair value of available for sale securities in unrealized loss position 12 months or longer	108	74
Available for sale securities in unrealized loss position 12 months or longer, unrealized losses	-6	-2
Available for sale securities in unrealized loss positions 12 months or longer, count	69	23
Total fair value available for sale securities	313	306
Available for sale securities in unrealized loss position, unrealized losses	-10	-11
Available for sale securities in unrealized loss positions, count	202	188
Government National Mortgage Association [Member] | Residential mortgage-backed securities [Member]	'	'
Schedule of available for sale securities [Line Items]	'	'
Fair value of available for sale securities in unrealized loss position less than 12 months	0	0
Available for sale securities in unrealized loss position less than 12 months, unrealized losses	0	0
Available for sale securities in unrealized loss position less than 12 months, count	0	0
Fair value of available for sale securities in unrealized loss position 12 months or longer	19	19
Available for sale securities in unrealized loss position 12 months or longer, unrealized losses	-1	-2
Available for sale securities in unrealized loss positions 12 months or longer, count	5	6
Total fair value available for sale securities	19	19
Available for sale securities in unrealized loss position, unrealized losses	-1	-2
Available for sale securities in unrealized loss positions, count	5	6
Federal National Mortgage Association [Member] | Collateralized mortgage obligations [Member]	'	'
Schedule of available for sale securities [Line Items]	'	'
Fair value of available for sale securities in unrealized loss position less than 12 months	113	744
Available for sale securities in unrealized loss position less than 12 months, unrealized losses	-1	-36
Available for sale securities in unrealized loss position less than 12 months, count	8	41
Fair value of available for sale securities in unrealized loss position 12 months or longer	527	0
Available for sale securities in unrealized loss position 12 months or longer, unrealized losses	-22	0
Available for sale securities in unrealized loss positions 12 months or longer, count	31	0
Total fair value available for sale securities	640	744
Available for sale securities in unrealized loss position, unrealized losses	-23	-36
Available for sale securities in unrealized loss positions, count	39	41
Federal National Mortgage Association [Member] | Residential mortgage-backed securities [Member]	'	'
Schedule of available for sale securities [Line Items]	'	'
Fair value of available for sale securities in unrealized loss position less than 12 months	'	0
Available for sale securities in unrealized loss position less than 12 months, unrealized losses	'	0
Available for sale securities in unrealized loss position less than 12 months, count	'	3
Fair value of available for sale securities in unrealized loss position 12 months or longer	'	0
Available for sale securities in unrealized loss position 12 months or longer, unrealized losses	'	0
Available for sale securities in unrealized loss positions 12 months or longer, count	'	3
Total fair value available for sale securities	'	1
Available for sale securities in unrealized loss position, unrealized losses	'	0
Available for sale securities in unrealized loss positions, count	'	6
Federal Home Loan Mortgage Corporation [Member] | Collateralized mortgage obligations [Member]	'	'
Schedule of available for sale securities [Line Items]	'	'
Fair value of available for sale securities in unrealized loss position less than 12 months	117	361
Available for sale securities in unrealized loss position less than 12 months, unrealized losses	-3	-17
Available for sale securities in unrealized loss position less than 12 months, count	6	19
Fair value of available for sale securities in unrealized loss position 12 months or longer	223	0
Available for sale securities in unrealized loss position 12 months or longer, unrealized losses	-8	0
Available for sale securities in unrealized loss positions 12 months or longer, count	12	0
Total fair value available for sale securities	340	361
Available for sale securities in unrealized loss position, unrealized losses	-11	-17
Available for sale securities in unrealized loss positions, count	18	19
Non-agency issued [Member] | Collateralized mortgage obligations [Member]	'	'
Schedule of available for sale securities [Line Items]	'	'
Fair value of available for sale securities in unrealized loss position less than 12 months	'	1
Available for sale securities in unrealized loss position less than 12 months, unrealized losses	'	0
Available for sale securities in unrealized loss position less than 12 months, count	'	3
Fair value of available for sale securities in unrealized loss position 12 months or longer	'	0
Available for sale securities in unrealized loss position 12 months or longer, unrealized losses	'	0
Available for sale securities in unrealized loss positions 12 months or longer, count	'	0
Total fair value available for sale securities	'	1
Available for sale securities in unrealized loss position, unrealized losses	'	$0
Available for sale securities in unrealized loss positions, count	'	3

Investment_Securities_Maturiti

Investment Securities - Maturities of Available for Sale and Held to Maturity Debt Securities (Details) (USD $)	Sep. 30, 2014	Dec. 31, 2013
In Millions, unless otherwise specified
Scheduled contractual maturities of investment securities [Line Items]	'	'
Debt securities, amortized cost within one year	$102	'
Debt securities, fair value within one year	103	'
Debt securities, amortized cost after one year through five years	817	'
Debt securities, fair value after one year through five years	839	'
Debt securities, amortized cost after five years through ten years	601	'
Debt securities, fair value after five years through ten years	600	'
Debt securities, amortized cost after ten years	20	'
Debt securities, fair value after ten years	19	'
Debt securities, amortized cost	1,540	'
Debt securities, fair value	1,561	'
Mortgage-backed securities, amortized cost	8,196	'
Mortgage-backed securities, fair value	8,202	'
Available for sale securities, amortized cost	6,109	7,319
Investment securities available for sale	6,198	7,423
Total available for sale and held to maturity securities, amortized cost	11,461	'
Total available for sale and held to maturity securities, fair value	11,521	'
Collateralized loan obligations, non-agency issued [Member]	'	'
Scheduled contractual maturities of investment securities [Line Items]	'	'
Available for sale securities, amortized cost	1,026	1,392
Investment securities available for sale	1,050	1,431
Asset-backed securities [Member]	'	'
Scheduled contractual maturities of investment securities [Line Items]	'	'
Available for sale securities, amortized cost	677	896
Investment securities available for sale	687	905
Other securities [Member]	'	'
Scheduled contractual maturities of investment securities [Line Items]	'	'
Available for sale securities, amortized cost	22	33
Investment securities available for sale	$22	$33

Investment_Securities_Details_

Investment Securities (Details Textual)	9 Months Ended	12 Months Ended
	Sep. 30, 2014	Dec. 31, 2013
Investment Securities (Additional Textual) [Abstract]	'	'
Contractual maturity period of securities (in years)	'10 years	'
Weighted average duration investment securities portfolio (in years)	'3 years 8 months	'3 years 6 months

Loans_and_Leases_Composition_D

Loans and Leases - Composition (Details) (USD $)	Sep. 30, 2014	Dec. 31, 2013	Sep. 30, 2013
In Millions, unless otherwise specified
Summary of loans and leases	'	'	'
Loans receivable	$22,770	$21,440	'
Allowance for loan losses	-231	-209	'
Total loans and leases, net	22,538	21,230	'
Total commercial [Member]	'	'	'
Summary of loans and leases	'	'	'
Loans receivable	13,850	13,068	'
Total commercial [Member] | Commercial real estate [Member]	'	'	'
Summary of loans and leases	'	'	'
Loans receivable	6,864	6,914	'
Total commercial [Member] | Construction [Member]	'	'	'
Summary of loans and leases	'	'	'
Loans receivable	1,150	864	'
Total commercial [Member] | Business [Member]	'	'	'
Summary of loans and leases	'	'	'
Loans receivable	5,836	5,290	'
Total consumer [Member]	'	'	'
Summary of loans and leases	'	'	'
Loans receivable	8,920	8,371	'
Total consumer [Member] | Residential real estate [Member]	'	'	'
Summary of loans and leases	'	'	'
Loans receivable	3,361	3,448	'
Total consumer [Member] | Home equity [Member]	'	'	'
Summary of loans and leases	'	'	'
Loans receivable	2,887	2,752	'
Total consumer [Member] | Indirect auto [Member]	'	'	'
Summary of loans and leases	'	'	'
Loans receivable	2,074	1,544	'
Total consumer [Member] | Credit cards [Member]	'	'	'
Summary of loans and leases	'	'	'
Loans receivable	313	325	'
Total consumer [Member] | Other consumer [Member]	'	'	'
Summary of loans and leases	'	'	'
Loans receivable	286	302	'
Originated loans [Member]	'	'	'
Summary of loans and leases	'	'	'
Loans receivable	18,842	16,922	16,212
Allowance for loan losses	-227	-205	'
Total loans and leases, net	18,615	16,717	'
Originated loans [Member] | Total commercial [Member]	'	'	'
Summary of loans and leases	'	'	'
Loans receivable	12,358	11,231	'
Originated loans [Member] | Total commercial [Member] | Commercial real estate [Member]	'	'	'
Summary of loans and leases	'	'	'
Loans receivable	5,742	5,527	'
Originated loans [Member] | Total commercial [Member] | Construction [Member]	'	'	'
Summary of loans and leases	'	'	'
Loans receivable	1,148	828	'
Originated loans [Member] | Total commercial [Member] | Business [Member]	'	'	'
Summary of loans and leases	'	'	'
Loans receivable	5,468	4,876	4,741
Originated loans [Member] | Total consumer [Member]	'	'	'
Summary of loans and leases	'	'	'
Loans receivable	6,484	5,691	'
Originated loans [Member] | Total consumer [Member] | Residential real estate [Member]	'	'	'
Summary of loans and leases	'	'	'
Loans receivable	2,030	1,902	1,883
Originated loans [Member] | Total consumer [Member] | Home equity [Member]	'	'	'
Summary of loans and leases	'	'	'
Loans receivable	1,781	1,618	1,537
Originated loans [Member] | Total consumer [Member] | Indirect auto [Member]	'	'	'
Summary of loans and leases	'	'	'
Loans receivable	2,074	1,544	1,339
Originated loans [Member] | Total consumer [Member] | Credit cards [Member]	'	'	'
Summary of loans and leases	'	'	'
Loans receivable	313	325	'
Originated loans [Member] | Total consumer [Member] | Other consumer [Member]	'	'	'
Summary of loans and leases	'	'	'
Loans receivable	286	302	'
Acquired loans [Member]	'	'	'
Summary of loans and leases	'	'	'
Loans receivable	3,928	4,517	4,878
Allowance for loan losses	-5	-4	'
Total loans and leases, net	3,923	4,514	'
Acquired loans [Member] | Total commercial [Member]	'	'	'
Summary of loans and leases	'	'	'
Loans receivable	1,492	1,838	'
Acquired loans [Member] | Total commercial [Member] | Commercial real estate [Member]	'	'	'
Summary of loans and leases	'	'	'
Loans receivable	1,122	1,387	'
Acquired loans [Member] | Total commercial [Member] | Construction [Member]	'	'	'
Summary of loans and leases	'	'	'
Loans receivable	2	36	'
Acquired loans [Member] | Total commercial [Member] | Business [Member]	'	'	'
Summary of loans and leases	'	'	'
Loans receivable	368	414	464
Acquired loans [Member] | Total consumer [Member]	'	'	'
Summary of loans and leases	'	'	'
Loans receivable	2,436	2,680	'
Acquired loans [Member] | Total consumer [Member] | Residential real estate [Member]	'	'	'
Summary of loans and leases	'	'	'
Loans receivable	1,330	1,546	1,637
Acquired loans [Member] | Total consumer [Member] | Home equity [Member]	'	'	'
Summary of loans and leases	'	'	'
Loans receivable	1,105	1,134	1,170
Acquired loans [Member] | Total consumer [Member] | Indirect auto [Member]	'	'	'
Summary of loans and leases	'	'	'
Loans receivable	0	0	'
Acquired loans [Member] | Total consumer [Member] | Credit cards [Member]	'	'	'
Summary of loans and leases	'	'	'
Loans receivable	0	0	'
Acquired loans [Member] | Total consumer [Member] | Other consumer [Member]	'	'	'
Summary of loans and leases	'	'	'
Loans receivable	$0	$0	'

Loans_and_Leases_Acquired_Loan

Loans and Leases - Acquired Loans (Details) (USD $)	Sep. 30, 2014	Dec. 31, 2013
In Millions, unless otherwise specified
The outstanding principal balance and the related carrying amount of the acquired loans	'	'
Outstanding principal balance	$4,028	$4,640
Carrying amount	3,928	4,517
Credit impaired acquired loans evaluated individually for future credit losses [Member]	'	'
The outstanding principal balance and the related carrying amount of the acquired loans	'	'
Outstanding principal balance	13	18
Carrying amount	8	12
Acquired loans evaluated collectively for future credit losses [Member]	'	'
The outstanding principal balance and the related carrying amount of the acquired loans	'	'
Outstanding principal balance	2,718	3,301
Carrying amount	2,661	3,233
Other acquired loans [Member]	'	'
The outstanding principal balance and the related carrying amount of the acquired loans	'	'
Outstanding principal balance	1,296	1,321
Carrying amount	$1,260	$1,273

Loans_and_Leases_Accretable_Yi

Loans and Leases - Accretable Yield Rollforward(Details) (USD $)	9 Months Ended				12 Months Ended
In Millions, unless otherwise specified	Sep. 30, 2014		Sep. 30, 2013		Dec. 31, 2013
Changes in the accretable discount on loans acquired	'		'		'
Beginning balance	($851)		($1,057)		($1,057)
Net reclassifications from nonaccretable yield	-5		'		-15
Accretion	108		'		199
Other changes in nonaccretable yield	55	[1]	22	[1]	'
Ending balance	($693)		'		($851)
[1]	Includes changes in expected cash flows from changes in interest rate and prepayment assumptions.

Loans_and_Leases_Allowance_for

Loans and Leases - Allowance for Loan Loss Rollforward (Details) (USD $)	3 Months Ended		9 Months Ended
In Millions, unless otherwise specified	Sep. 30, 2014	Sep. 30, 2013	Sep. 30, 2014	Sep. 30, 2013	Dec. 31, 2013
Activity in the allowance for credit losses for the periods indicated	'	'	'	'	'
Total	$22,770	'	$22,770	'	$21,440
Originated loans [Member]	'	'	'	'	'
Activity in the allowance for credit losses for the periods indicated	'	'	'	'	'
Balance at beginning of period	220	182	205	161	'
Provision for loan losses	20	25	63	68	'
Charge-offs	-15	-18	-51	-43	'
Recoveries	2	5	10	9	'
Balance at end of period	227	195	227	195	'
Individually evaluated for impairment	6	10	6	10	'
Collectively evaluated for impairment	221	185	221	185	'
Total	227	195	227	195	'
Loans receivables, individually evaluated for impairment	158	170	158	170	'
Loans receivables, collectively evaluated for impairment	18,684	16,042	18,684	16,042	'
Total	18,842	16,212	18,842	16,212	16,922
Acquired loans [Member]	'	'	'	'	'
Activity in the allowance for credit losses for the periods indicated	'	'	'	'	'
Balance at beginning of period	4	1	4	2	'
Provision for loan losses	1	2	5	4	'
Charge-offs	0	0	-4	-2	'
Recoveries	0	0	0	0	'
Balance at end of period	5	3	5	3	'
Individually evaluated for impairment	0	0	0	0	'
Collectively evaluated for impairment	5	3	5	3	'
Total	5	3	5	3	'
Loans receivables, individually evaluated for impairment	6	14	6	14	'
Loans receivables, collectively evaluated for impairment	1,253	1,318	1,253	1,318	'
Loans acquired with deteriorated credit quality	2,668	3,546	2,668	3,546	'
Total	3,928	4,878	3,928	4,878	4,517
Total commercial [Member]	'	'	'	'	'
Activity in the allowance for credit losses for the periods indicated	'	'	'	'	'
Total	13,850	'	13,850	'	13,068
Total commercial [Member] | Business [Member]	'	'	'	'	'
Activity in the allowance for credit losses for the periods indicated	'	'	'	'	'
Total	5,836	'	5,836	'	5,290
Total commercial [Member] | Originated loans [Member]	'	'	'	'	'
Activity in the allowance for credit losses for the periods indicated	'	'	'	'	'
Total	12,358	'	12,358	'	11,231
Total commercial [Member] | Originated loans [Member] | Commercial real estate [Member]	'	'	'	'	'
Activity in the allowance for credit losses for the periods indicated	'	'	'	'	'
Balance at beginning of period	54	43	47	38	'
Provision for loan losses	3	-3	13	6	'
Charge-offs	-2	-2	-8	-6	'
Recoveries	0	3	3	4	'
Balance at end of period	54	41	54	41	'
Individually evaluated for impairment	2	2	2	2	'
Collectively evaluated for impairment	53	39	53	39	'
Total	54	41	54	41	'
Loans receivables, individually evaluated for impairment	66	82	66	82	'
Loans receivables, collectively evaluated for impairment	6,824	6,012	6,824	6,012	'
Total	6,890	6,094	6,890	6,094	6,354
Total commercial [Member] | Originated loans [Member] | Business [Member]	'	'	'	'	'
Activity in the allowance for credit losses for the periods indicated	'	'	'	'	'
Balance at beginning of period	124	107	120	99	'
Provision for loan losses	9	22	23	42	'
Charge-offs	-4	-10	-16	-23	'
Recoveries	1	0	2	2	'
Balance at end of period	129	119	129	119	'
Individually evaluated for impairment	2	5	2	5	'
Collectively evaluated for impairment	127	115	127	115	'
Total	129	119	129	119	'
Loans receivables, individually evaluated for impairment	59	58	59	58	'
Loans receivables, collectively evaluated for impairment	5,409	4,683	5,409	4,683	'
Total	5,468	4,741	5,468	4,741	4,876
Total commercial [Member] | Acquired loans [Member]	'	'	'	'	'
Activity in the allowance for credit losses for the periods indicated	'	'	'	'	'
Total	1,492	'	1,492	'	1,838
Total commercial [Member] | Acquired loans [Member] | Commercial real estate [Member]	'	'	'	'	'
Activity in the allowance for credit losses for the periods indicated	'	'	'	'	'
Balance at beginning of period	0	0	0	0	'
Provision for loan losses	0	0	1	2	'
Charge-offs	0	0	-1	-2	'
Recoveries	0	0	0	0	'
Balance at end of period	0	0	0	0	'
Individually evaluated for impairment	0	0	0	0	'
Collectively evaluated for impairment	0	0	0	0	'
Total	0	0	0	0	'
Loans receivables, individually evaluated for impairment	0	1	0	1	'
Loans receivables, collectively evaluated for impairment	0	0	0	0	'
Loans acquired with deteriorated credit quality	1,124	1,603	1,124	1,603	'
Total	1,124	1,604	1,124	1,604	1,423
Total commercial [Member] | Acquired loans [Member] | Business [Member]	'	'	'	'	'
Activity in the allowance for credit losses for the periods indicated	'	'	'	'	'
Balance at beginning of period	0	0	0	0	'
Provision for loan losses	0	0	0	0	'
Charge-offs	0	0	0	0	'
Recoveries	0	0	0	0	'
Balance at end of period	0	0	0	0	'
Individually evaluated for impairment	0	0	0	0	'
Collectively evaluated for impairment	0	0	0	0	'
Total	0	0	0	0	'
Loans receivables, individually evaluated for impairment	2	9	2	9	'
Loans receivables, collectively evaluated for impairment	285	339	285	339	'
Loans acquired with deteriorated credit quality	81	115	81	115	'
Total	368	464	368	464	414
Total consumer [Member]	'	'	'	'	'
Activity in the allowance for credit losses for the periods indicated	'	'	'	'	'
Total	8,920	'	8,920	'	8,371
Total consumer [Member] | Residential real estate [Member]	'	'	'	'	'
Activity in the allowance for credit losses for the periods indicated	'	'	'	'	'
Total	3,361	'	3,361	'	3,448
Total consumer [Member] | Home equity [Member]	'	'	'	'	'
Activity in the allowance for credit losses for the periods indicated	'	'	'	'	'
Total	2,887	'	2,887	'	2,752
Total consumer [Member] | Indirect auto [Member]	'	'	'	'	'
Activity in the allowance for credit losses for the periods indicated	'	'	'	'	'
Total	2,074	'	2,074	'	1,544
Total consumer [Member] | Originated loans [Member]	'	'	'	'	'
Activity in the allowance for credit losses for the periods indicated	'	'	'	'	'
Total	6,484	'	6,484	'	5,691
Total consumer [Member] | Originated loans [Member] | Residential real estate [Member]	'	'	'	'	'
Activity in the allowance for credit losses for the periods indicated	'	'	'	'	'
Balance at beginning of period	2	3	2	5	'
Provision for loan losses	0	0	1	-2	'
Charge-offs	0	0	-1	-1	'
Recoveries	0	0	0	0	'
Balance at end of period	2	2	2	2	'
Individually evaluated for impairment	1	1	1	1	'
Collectively evaluated for impairment	1	1	1	1	'
Total	2	2	2	2	'
Loans receivables, individually evaluated for impairment	21	20	21	20	'
Loans receivables, collectively evaluated for impairment	2,009	1,862	2,009	1,862	'
Total	2,030	1,883	2,030	1,883	1,902
Total consumer [Member] | Originated loans [Member] | Home equity [Member]	'	'	'	'	'
Activity in the allowance for credit losses for the periods indicated	'	'	'	'	'
Balance at beginning of period	9	6	7	5	'
Provision for loan losses	0	1	4	3	'
Charge-offs	-1	0	-3	-2	'
Recoveries	0	0	1	0	'
Balance at end of period	9	6	9	6	'
Individually evaluated for impairment	1	2	1	2	'
Collectively evaluated for impairment	7	3	7	3	'
Total	9	6	9	6	'
Loans receivables, individually evaluated for impairment	7	6	7	6	'
Loans receivables, collectively evaluated for impairment	1,775	1,531	1,775	1,531	'
Total	1,781	1,537	1,781	1,537	1,618
Total consumer [Member] | Originated loans [Member] | Indirect auto [Member]	'	'	'	'	'
Activity in the allowance for credit losses for the periods indicated	'	'	'	'	'
Balance at beginning of period	12	6	10	3	'
Provision for loan losses	3	3	9	6	'
Charge-offs	-2	-1	-6	-2	'
Recoveries	0	0	1	0	'
Balance at end of period	13	8	13	8	'
Individually evaluated for impairment	0	0	0	0	'
Collectively evaluated for impairment	13	8	13	8	'
Total	13	8	13	8	'
Loans receivables, individually evaluated for impairment	3	1	3	1	'
Loans receivables, collectively evaluated for impairment	2,071	1,338	2,071	1,338	'
Total	2,074	1,339	2,074	1,339	1,544
Total consumer [Member] | Originated loans [Member] | Credit cards [Member]	'	'	'	'	'
Activity in the allowance for credit losses for the periods indicated	'	'	'	'	'
Balance at beginning of period	13	13	13	7	'
Provision for loan losses	3	2	9	8	'
Charge-offs	-3	-2	-10	-2	'
Recoveries	0	0	1	1	'
Balance at end of period	13	13	13	13	'
Individually evaluated for impairment	0	0	0	0	'
Collectively evaluated for impairment	13	13	13	13	'
Total	13	13	13	13	'
Loans receivables, individually evaluated for impairment	0	0	0	0	'
Loans receivables, collectively evaluated for impairment	313	312	313	312	'
Total	313	312	313	312	325
Total consumer [Member] | Originated loans [Member] | Other consumer [Member]	'	'	'	'	'
Activity in the allowance for credit losses for the periods indicated	'	'	'	'	'
Balance at beginning of period	5	6	6	5	'
Provision for loan losses	2	2	5	6	'
Charge-offs	-2	-2	-6	-6	'
Recoveries	0	1	1	1	'
Balance at end of period	6	6	6	6	'
Individually evaluated for impairment	0	0	0	0	'
Collectively evaluated for impairment	5	6	5	6	'
Total	6	6	6	6	'
Loans receivables, individually evaluated for impairment	2	2	2	2	'
Loans receivables, collectively evaluated for impairment	284	304	284	304	'
Total	286	306	286	306	302
Total consumer [Member] | Acquired loans [Member]	'	'	'	'	'
Activity in the allowance for credit losses for the periods indicated	'	'	'	'	'
Total	2,436	'	2,436	'	2,680
Total consumer [Member] | Acquired loans [Member] | Residential real estate [Member]	'	'	'	'	'
Activity in the allowance for credit losses for the periods indicated	'	'	'	'	'
Balance at beginning of period	1	0	1	0	'
Provision for loan losses	1	1	1	1	'
Charge-offs	0	0	0	0	'
Recoveries	0	0	0	0	'
Balance at end of period	1	1	1	1	'
Individually evaluated for impairment	0	0	0	0	'
Collectively evaluated for impairment	1	1	1	1	'
Total	1	1	1	1	'
Loans receivables, individually evaluated for impairment	0	0	0	0	'
Loans receivables, collectively evaluated for impairment	0	0	0	0	'
Loans acquired with deteriorated credit quality	1,330	1,637	1,330	1,637	'
Total	1,330	1,637	1,330	1,637	1,546
Total consumer [Member] | Acquired loans [Member] | Home equity [Member]	'	'	'	'	'
Activity in the allowance for credit losses for the periods indicated	'	'	'	'	'
Balance at beginning of period	3	0	3	0	'
Provision for loan losses	0	2	3	2	'
Charge-offs	0	0	-3	0	'
Recoveries	0	0	0	0	'
Balance at end of period	3	2	3	2	'
Individually evaluated for impairment	0	0	0	0	'
Collectively evaluated for impairment	3	2	3	2	'
Total	3	2	3	2	'
Loans receivables, individually evaluated for impairment	4	3	4	3	'
Loans receivables, collectively evaluated for impairment	968	975	968	975	'
Loans acquired with deteriorated credit quality	133	191	133	191	'
Total	1,105	1,170	1,105	1,170	1,134
Total consumer [Member] | Acquired loans [Member] | Indirect auto [Member]	'	'	'	'	'
Activity in the allowance for credit losses for the periods indicated	'	'	'	'	'
Total	0	'	0	'	0
Total consumer [Member] | Acquired loans [Member] | Credit cards [Member]	'	'	'	'	'
Activity in the allowance for credit losses for the periods indicated	'	'	'	'	'
Balance at beginning of period	0	0	0	0	'
Provision for loan losses	0	0	0	0	'
Charge-offs	0	0	0	0	'
Recoveries	0	0	0	0	'
Balance at end of period	0	0	0	0	'
Individually evaluated for impairment	0	0	0	0	'
Collectively evaluated for impairment	0	0	0	0	'
Total	0	0	0	0	'
Loans receivables, individually evaluated for impairment	0	0	0	0	'
Loans receivables, collectively evaluated for impairment	0	0	0	0	'
Loans acquired with deteriorated credit quality	0	0	0	0	'
Total	0	0	0	0	0
Total consumer [Member] | Acquired loans [Member] | Other consumer [Member]	'	'	'	'	'
Activity in the allowance for credit losses for the periods indicated	'	'	'	'	'
Balance at beginning of period	0	1	0	1	'
Provision for loan losses	0	-1	0	-1	'
Charge-offs	0	0	0	-1	'
Recoveries	0	0	0	0	'
Balance at end of period	0	0	0	0	'
Individually evaluated for impairment	0	0	0	0	'
Collectively evaluated for impairment	0	0	0	0	'
Total	0	0	0	0	'
Loans receivables, individually evaluated for impairment	0	0	0	0	'
Loans receivables, collectively evaluated for impairment	0	4	0	4	'
Loans acquired with deteriorated credit quality	0	0	0	0	'
Total	$0	$4	$0	$4	$0

Loans_and_Leases_Nonperforming

Loans and Leases - Nonperforming Loans (Details) (USD $)	Sep. 30, 2014	Dec. 31, 2013
In Millions, unless otherwise specified
Summary of nonaccruing loans	'	'
Nonaccruing loans	$199	$188
Total commercial [Member]	'	'
Summary of nonaccruing loans	'	'
Nonaccruing loans	101	105
Total commercial [Member] | Commercial real estate [Member]	'	'
Summary of nonaccruing loans	'	'
Nonaccruing loans	57	54
Total commercial [Member] | Business [Member]	'	'
Summary of nonaccruing loans	'	'
Nonaccruing loans	43	51
Total consumer [Member]	'	'
Summary of nonaccruing loans	'	'
Nonaccruing loans	99	82
Total consumer [Member] | Residential real estate [Member]	'	'
Summary of nonaccruing loans	'	'
Nonaccruing loans	36	31
Total consumer [Member] | Home equity [Member]	'	'
Summary of nonaccruing loans	'	'
Nonaccruing loans	45	39
Total consumer [Member] | Indirect auto [Member]	'	'
Summary of nonaccruing loans	'	'
Nonaccruing loans	12	6
Total consumer [Member] | Other consumer [Member]	'	'
Summary of nonaccruing loans	'	'
Nonaccruing loans	5	6
Originated loans [Member]	'	'
Summary of nonaccruing loans	'	'
Nonaccruing loans	171	157
Originated loans [Member] | Total commercial [Member]	'	'
Summary of nonaccruing loans	'	'
Nonaccruing loans	94	95
Originated loans [Member] | Total commercial [Member] | Commercial real estate [Member]	'	'
Summary of nonaccruing loans	'	'
Nonaccruing loans	57	53
Originated loans [Member] | Total commercial [Member] | Business [Member]	'	'
Summary of nonaccruing loans	'	'
Nonaccruing loans	37	42
Originated loans [Member] | Total consumer [Member]	'	'
Summary of nonaccruing loans	'	'
Nonaccruing loans	77	62
Originated loans [Member] | Total consumer [Member] | Residential real estate [Member]	'	'
Summary of nonaccruing loans	'	'
Nonaccruing loans	36	31
Originated loans [Member] | Total consumer [Member] | Home equity [Member]	'	'
Summary of nonaccruing loans	'	'
Nonaccruing loans	23	18
Originated loans [Member] | Total consumer [Member] | Indirect auto [Member]	'	'
Summary of nonaccruing loans	'	'
Nonaccruing loans	12	6
Originated loans [Member] | Total consumer [Member] | Other consumer [Member]	'	'
Summary of nonaccruing loans	'	'
Nonaccruing loans	5	6
Acquired loans [Member]	'	'
Summary of nonaccruing loans	'	'
Nonaccruing loans	29	30
Acquired loans [Member] | Total commercial [Member]	'	'
Summary of nonaccruing loans	'	'
Nonaccruing loans	7	10
Acquired loans [Member] | Total commercial [Member] | Commercial real estate [Member]	'	'
Summary of nonaccruing loans	'	'
Nonaccruing loans	0	1
Acquired loans [Member] | Total commercial [Member] | Business [Member]	'	'
Summary of nonaccruing loans	'	'
Nonaccruing loans	7	9
Acquired loans [Member] | Total consumer [Member]	'	'
Summary of nonaccruing loans	'	'
Nonaccruing loans	22	20
Acquired loans [Member] | Total consumer [Member] | Residential real estate [Member]	'	'
Summary of nonaccruing loans	'	'
Nonaccruing loans	0	0
Acquired loans [Member] | Total consumer [Member] | Home equity [Member]	'	'
Summary of nonaccruing loans	'	'
Nonaccruing loans	22	20
Acquired loans [Member] | Total consumer [Member] | Indirect auto [Member]	'	'
Summary of nonaccruing loans	'	'
Nonaccruing loans	0	0
Acquired loans [Member] | Total consumer [Member] | Other consumer [Member]	'	'
Summary of nonaccruing loans	'	'
Nonaccruing loans	$0	$0

Loans_and_Leases_Interest_Inco

Loans and Leases - Interest Income Foregone (Details) (USD $)	3 Months Ended		9 Months Ended
In Millions, unless otherwise specified	Sep. 30, 2014	Sep. 30, 2013	Sep. 30, 2014	Sep. 30, 2013
Details of additional information on loans	'	'	'	'
Additional interest income that would have been recorded if nonperforming loans were performing in accordance with original terms	$2	$2	$6	$5

Loans_and_Leases_Impaired_Loan

Loans and Leases - Impaired Loans (Details) (USD $)	3 Months Ended		9 Months Ended
In Millions, unless otherwise specified	Sep. 30, 2014	Sep. 30, 2013	Sep. 30, 2014	Sep. 30, 2013	Dec. 31, 2013
Summary of impaired loans	'	'	'	'	'
Recorded investment	$164	'	$164	'	$172
Total commercial [Member]	'	'	'	'	'
Summary of impaired loans	'	'	'	'	'
Recorded investment	127	'	127	'	139
Total commercial [Member] | With no related allowance recorded [Member]	'	'	'	'	'
Summary of impaired loans	'	'	'	'	'
Recorded investment	52	'	52	'	103
Unpaid principal balance	92	'	92	'	146
Related allowance	0	'	0	'	0
Total commercial [Member] | With a related allowance recorded [Member]	'	'	'	'	'
Summary of impaired loans	'	'	'	'	'
Recorded investment	72	'	72	'	28
Unpaid principal balance	74	'	74	'	41
Related allowance	4	'	4	'	5
Total consumer [Member]	'	'	'	'	'
Summary of impaired loans	'	'	'	'	'
Recorded investment	37	'	37	'	33
Total consumer [Member] | With no related allowance recorded [Member]	'	'	'	'	'
Summary of impaired loans	'	'	'	'	'
Recorded investment	19	'	19	'	18
Unpaid principal balance	22	'	22	'	20
Related allowance	0	'	0	'	0
Total consumer [Member] | With a related allowance recorded [Member]	'	'	'	'	'
Summary of impaired loans	'	'	'	'	'
Recorded investment	14	'	14	'	14
Unpaid principal balance	15	'	15	'	16
Related allowance	2	'	2	'	4
Originated loans [Member]	'	'	'	'	'
Summary of impaired loans	'	'	'	'	'
Recorded investment	158	'	158	'	163
Unpaid principal balance	203	'	203	'	222
Related allowance	6	'	6	'	9
Average recorded investment	156	178	157	181	'
Interest income recognized	1	1	2	2	'
Originated loans [Member] | With no related allowance recorded [Member]	'	'	'	'	'
Summary of impaired loans	'	'	'	'	'
Recorded investment	72	'	72	'	121
Unpaid principal balance	114	'	114	'	166
Related allowance	0	'	0	'	0
Originated loans [Member] | With a related allowance recorded [Member]	'	'	'	'	'
Summary of impaired loans	'	'	'	'	'
Recorded investment	86	'	86	'	42
Unpaid principal balance	89	'	89	'	57
Related allowance	6	'	6	'	9
Originated loans [Member] | Total commercial [Member]	'	'	'	'	'
Summary of impaired loans	'	'	'	'	'
Recorded investment	125	'	125	'	131
Unpaid principal balance	166	'	166	'	187
Related allowance	4	'	4	'	5
Average recorded investment	124	148	124	147	'
Interest income recognized	1	1	2	2	'
Originated loans [Member] | Total commercial [Member] | Commercial real estate [Member]	'	'	'	'	'
Summary of impaired loans	'	'	'	'	'
Recorded investment	66	'	66	'	72
Unpaid principal balance	85	'	85	'	97
Related allowance	2	'	2	'	4
Average recorded investment	64	88	68	88	'
Interest income recognized	0	0	1	1	'
Originated loans [Member] | Total commercial [Member] | Commercial real estate [Member] | With no related allowance recorded [Member]	'	'	'	'	'
Summary of impaired loans	'	'	'	'	'
Recorded investment	21	'	21	'	48
Unpaid principal balance	40	'	40	'	63
Related allowance	0	'	0	'	0
Originated loans [Member] | Total commercial [Member] | Commercial real estate [Member] | With a related allowance recorded [Member]	'	'	'	'	'
Summary of impaired loans	'	'	'	'	'
Recorded investment	45	'	45	'	24
Unpaid principal balance	45	'	45	'	35
Related allowance	2	'	2	'	4
Originated loans [Member] | Total commercial [Member] | Business [Member]	'	'	'	'	'
Summary of impaired loans	'	'	'	'	'
Recorded investment	59	'	59	'	59
Unpaid principal balance	80	'	80	'	90
Related allowance	2	'	2	'	2
Average recorded investment	59	60	56	59	'
Interest income recognized	0	0	1	1	'
Originated loans [Member] | Total commercial [Member] | Business [Member] | With no related allowance recorded [Member]	'	'	'	'	'
Summary of impaired loans	'	'	'	'	'
Recorded investment	32	'	32	'	55
Unpaid principal balance	52	'	52	'	84
Related allowance	0	'	0	'	0
Originated loans [Member] | Total commercial [Member] | Business [Member] | With a related allowance recorded [Member]	'	'	'	'	'
Summary of impaired loans	'	'	'	'	'
Recorded investment	28	'	28	'	4
Unpaid principal balance	29	'	29	'	6
Related allowance	2	'	2	'	2
Originated loans [Member] | Total consumer [Member]	'	'	'	'	'
Summary of impaired loans	'	'	'	'	'
Recorded investment	33	'	33	'	32
Unpaid principal balance	37	'	37	'	36
Related allowance	2	'	2	'	4
Average recorded investment	33	30	34	33	'
Interest income recognized	0	0	0	0	'
Originated loans [Member] | Total consumer [Member] | Residential real estate [Member]	'	'	'	'	'
Summary of impaired loans	'	'	'	'	'
Recorded investment	21	'	21	'	20
Unpaid principal balance	23	'	23	'	21
Related allowance	1	'	1	'	1
Average recorded investment	21	21	21	23	'
Interest income recognized	0	0	0	0	'
Originated loans [Member] | Total consumer [Member] | Residential real estate [Member] | With no related allowance recorded [Member]	'	'	'	'	'
Summary of impaired loans	'	'	'	'	'
Recorded investment	14	'	14	'	12
Unpaid principal balance	15	'	15	'	12
Related allowance	0	'	0	'	0
Originated loans [Member] | Total consumer [Member] | Residential real estate [Member] | With a related allowance recorded [Member]	'	'	'	'	'
Summary of impaired loans	'	'	'	'	'
Recorded investment	7	'	7	'	8
Unpaid principal balance	8	'	8	'	9
Related allowance	1	'	1	'	1
Originated loans [Member] | Total consumer [Member] | Home equity [Member]	'	'	'	'	'
Summary of impaired loans	'	'	'	'	'
Recorded investment	7	'	7	'	8
Unpaid principal balance	8	'	8	'	10
Related allowance	1	'	1	'	3
Average recorded investment	7	6	7	6	'
Interest income recognized	0	0	0	0	'
Originated loans [Member] | Total consumer [Member] | Home equity [Member] | With no related allowance recorded [Member]	'	'	'	'	'
Summary of impaired loans	'	'	'	'	'
Recorded investment	3	'	3	'	4
Unpaid principal balance	4	'	4	'	5
Related allowance	0	'	0	'	0
Originated loans [Member] | Total consumer [Member] | Home equity [Member] | With a related allowance recorded [Member]	'	'	'	'	'
Summary of impaired loans	'	'	'	'	'
Recorded investment	3	'	3	'	4
Unpaid principal balance	4	'	4	'	5
Related allowance	1	'	1	'	3
Originated loans [Member] | Total consumer [Member] | Indirect auto [Member]	'	'	'	'	'
Summary of impaired loans	'	'	'	'	'
Recorded investment	3	'	3	'	1
Unpaid principal balance	4	'	4	'	2
Related allowance	0	'	0	'	0
Average recorded investment	2	1	3	1	'
Interest income recognized	0	0	0	0	'
Originated loans [Member] | Total consumer [Member] | Indirect auto [Member] | With no related allowance recorded [Member]	'	'	'	'	'
Summary of impaired loans	'	'	'	'	'
Recorded investment	1	'	1	'	1
Unpaid principal balance	1	'	1	'	1
Related allowance	0	'	0	'	0
Originated loans [Member] | Total consumer [Member] | Indirect auto [Member] | With a related allowance recorded [Member]	'	'	'	'	'
Summary of impaired loans	'	'	'	'	'
Recorded investment	2	'	2	'	1
Unpaid principal balance	2	'	2	'	1
Related allowance	0	'	0	'	0
Originated loans [Member] | Total consumer [Member] | Other consumer [Member]	'	'	'	'	'
Summary of impaired loans	'	'	'	'	'
Recorded investment	2	'	2	'	3
Unpaid principal balance	3	'	3	'	3
Related allowance	0	'	0	'	0
Average recorded investment	2	2	3	3	'
Interest income recognized	0	0	0	0	'
Originated loans [Member] | Total consumer [Member] | Other consumer [Member] | With no related allowance recorded [Member]	'	'	'	'	'
Summary of impaired loans	'	'	'	'	'
Recorded investment	1	'	1	'	1
Unpaid principal balance	1	'	1	'	1
Related allowance	0	'	0	'	0
Originated loans [Member] | Total consumer [Member] | Other consumer [Member] | With a related allowance recorded [Member]	'	'	'	'	'
Summary of impaired loans	'	'	'	'	'
Recorded investment	1	'	1	'	1
Unpaid principal balance	1	'	1	'	1
Related allowance	0	'	0	'	0
Acquired loans [Member]	'	'	'	'	'
Summary of impaired loans	'	'	'	'	'
Average recorded investment	8	12	6	14	'
Interest income recognized	0	0	0	0	'
Acquired loans [Member] | With no related allowance recorded [Member]	'	'	'	'	'
Summary of impaired loans	'	'	'	'	'
Recorded investment	6	'	6	'	10
Unpaid principal balance	8	'	8	'	14
Related allowance	0	'	0	'	0
Acquired loans [Member] | Total commercial [Member]	'	'	'	'	'
Summary of impaired loans	'	'	'	'	'
Average recorded investment	4	9	2	11	'
Interest income recognized	0	0	0	0	'
Acquired loans [Member] | Total commercial [Member] | With no related allowance recorded [Member]	'	'	'	'	'
Summary of impaired loans	'	'	'	'	'
Recorded investment	2	'	2	'	8
Unpaid principal balance	3	'	3	'	12
Related allowance	0	'	0	'	0
Acquired loans [Member] | Total commercial [Member] | Commercial real estate [Member]	'	'	'	'	'
Summary of impaired loans	'	'	'	'	'
Average recorded investment	0	1	0	1	'
Interest income recognized	0	0	0	0	'
Acquired loans [Member] | Total commercial [Member] | Commercial real estate [Member] | With no related allowance recorded [Member]	'	'	'	'	'
Summary of impaired loans	'	'	'	'	'
Recorded investment	0	'	0	'	1
Unpaid principal balance	0	'	0	'	4
Related allowance	0	'	0	'	0
Acquired loans [Member] | Total commercial [Member] | Business [Member]	'	'	'	'	'
Summary of impaired loans	'	'	'	'	'
Average recorded investment	4	8	2	10	'
Interest income recognized	0	0	0	0	'
Acquired loans [Member] | Total commercial [Member] | Business [Member] | With no related allowance recorded [Member]	'	'	'	'	'
Summary of impaired loans	'	'	'	'	'
Recorded investment	2	'	2	'	7
Unpaid principal balance	3	'	3	'	8
Related allowance	0	'	0	'	0
Acquired loans [Member] | Total consumer [Member]	'	'	'	'	'
Summary of impaired loans	'	'	'	'	'
Average recorded investment	4	3	4	3	'
Interest income recognized	0	0	0	0	'
Acquired loans [Member] | Total consumer [Member] | With no related allowance recorded [Member]	'	'	'	'	'
Summary of impaired loans	'	'	'	'	'
Recorded investment	4	'	4	'	1
Unpaid principal balance	6	'	6	'	2
Related allowance	0	'	0	'	0
Acquired loans [Member] | Total consumer [Member] | Residential real estate [Member]	'	'	'	'	'
Summary of impaired loans	'	'	'	'	'
Average recorded investment	0	0	0	0	'
Interest income recognized	0	0	0	0	'
Acquired loans [Member] | Total consumer [Member] | Residential real estate [Member] | With no related allowance recorded [Member]	'	'	'	'	'
Summary of impaired loans	'	'	'	'	'
Recorded investment	0	'	0	'	0
Unpaid principal balance	0	'	0	'	0
Related allowance	0	'	0	'	0
Acquired loans [Member] | Total consumer [Member] | Home equity [Member]	'	'	'	'	'
Summary of impaired loans	'	'	'	'	'
Average recorded investment	4	3	4	3	'
Interest income recognized	0	0	0	0	'
Acquired loans [Member] | Total consumer [Member] | Home equity [Member] | With no related allowance recorded [Member]	'	'	'	'	'
Summary of impaired loans	'	'	'	'	'
Recorded investment	4	'	4	'	1
Unpaid principal balance	6	'	6	'	2
Related allowance	0	'	0	'	0
Acquired loans [Member] | Total consumer [Member] | Other consumer [Member]	'	'	'	'	'
Summary of impaired loans	'	'	'	'	'
Average recorded investment	0	0	0	0	'
Interest income recognized	0	0	0	0	'
Acquired loans [Member] | Total consumer [Member] | Other consumer [Member] | With no related allowance recorded [Member]	'	'	'	'	'
Summary of impaired loans	'	'	'	'	'
Recorded investment	0	'	0	'	0
Unpaid principal balance	0	'	0	'	0
Related allowance	$0	'	$0	'	$0

Loans_and_Leases_Reconciliatio

Loans and Leases - Reconciliation of Nonperforming Loans to Impaired Loans (Details) (USD $)	Sep. 30, 2014	Dec. 31, 2013
In Millions, unless otherwise specified
Reconciliation between nonaccrual loans and impaired loans [Line Items]	'	'
Nonaccrual loans	$199	$188
Plus: Accruing TDRs	69	52
Less : Smaller balance nonaccrual loans evaluated collectively when determining the allowance for loan losses	-105	-67
Total impaired loans	164	172
Total commercial [Member]	'	'
Reconciliation between nonaccrual loans and impaired loans [Line Items]	'	'
Nonaccrual loans	101	105
Plus: Accruing TDRs	62	45
Less : Smaller balance nonaccrual loans evaluated collectively when determining the allowance for loan losses	-36	-11
Total impaired loans	127	139
Total consumer [Member]	'	'
Reconciliation between nonaccrual loans and impaired loans [Line Items]	'	'
Nonaccrual loans	99	82
Plus: Accruing TDRs	7	8
Less : Smaller balance nonaccrual loans evaluated collectively when determining the allowance for loan losses	-69	-57
Total impaired loans	$37	$33

Loans_and_Leases_Past_Due_Agin

Loans and Leases - Past Due Aging Analysis (Details) (USD $)	Sep. 30, 2014		Dec. 31, 2013	Sep. 30, 2013
Aging analysis of loans	'		'	'
Total	$22,770,000,000		$21,440,000,000	'
Greater than 90 days and accruing	0		'	'
Total commercial [Member]	'		'	'
Aging analysis of loans	'		'	'
Total	13,850,000,000		13,068,000,000	'
Total commercial [Member] | Business [Member]	'		'	'
Aging analysis of loans	'		'	'
Total	5,836,000,000		5,290,000,000	'
Total consumer [Member]	'		'	'
Aging analysis of loans	'		'	'
Total	8,920,000,000		8,371,000,000	'
Total consumer [Member] | Residential real estate [Member]	'		'	'
Aging analysis of loans	'		'	'
Total	3,361,000,000		3,448,000,000	'
Total consumer [Member] | Home equity [Member]	'		'	'
Aging analysis of loans	'		'	'
Total	2,887,000,000		2,752,000,000	'
Total consumer [Member] | Indirect auto [Member]	'		'	'
Aging analysis of loans	'		'	'
Total	2,074,000,000		1,544,000,000	'
Originated loans [Member]	'		'	'
Aging analysis of loans	'		'	'
30-59 days past due	41,000,000		36,000,000	'
60-89 days past due	13,000,000		15,000,000	'
Greater than 90 days past due	98,000,000		90,000,000	'
Total past due	152,000,000		140,000,000	'
Current	18,690,000,000		16,782,000,000	'
Total	18,842,000,000		16,922,000,000	16,212,000,000
Greater than 90 days and accruing	2,000,000	[1]	3,000,000	'
Originated loans [Member] | Total commercial [Member]	'		'	'
Aging analysis of loans	'		'	'
30-59 days past due	12,000,000		9,000,000	'
60-89 days past due	5,000,000		5,000,000	'
Greater than 90 days past due	51,000,000		47,000,000	'
Total past due	69,000,000		61,000,000	'
Current	12,288,000,000		11,169,000,000	'
Total	12,358,000,000		11,231,000,000	'
Greater than 90 days and accruing	0		0	'
Originated loans [Member] | Total commercial [Member] | Commercial real estate [Member]	'		'	'
Aging analysis of loans	'		'	'
30-59 days past due	8,000,000		5,000,000	'
60-89 days past due	5,000,000		2,000,000	'
Greater than 90 days past due	39,000,000		27,000,000	'
Total past due	51,000,000		34,000,000	'
Current	6,838,000,000		6,321,000,000	'
Total	6,890,000,000		6,354,000,000	6,094,000,000
Greater than 90 days and accruing	0		0	'
Originated loans [Member] | Total commercial [Member] | Business [Member]	'		'	'
Aging analysis of loans	'		'	'
30-59 days past due	5,000,000		4,000,000	'
60-89 days past due	1,000,000		3,000,000	'
Greater than 90 days past due	13,000,000		20,000,000	'
Total past due	18,000,000		28,000,000	'
Current	5,450,000,000		4,849,000,000	'
Total	5,468,000,000		4,876,000,000	4,741,000,000
Greater than 90 days and accruing	0		0	'
Originated loans [Member] | Total consumer [Member]	'		'	'
Aging analysis of loans	'		'	'
30-59 days past due	28,000,000		27,000,000	'
60-89 days past due	8,000,000		9,000,000	'
Greater than 90 days past due	47,000,000		43,000,000	'
Total past due	82,000,000		79,000,000	'
Current	6,402,000,000		5,613,000,000	'
Total	6,484,000,000		5,691,000,000	'
Greater than 90 days and accruing	2,000,000		3,000,000	'
Originated loans [Member] | Total consumer [Member] | Residential real estate [Member]	'		'	'
Aging analysis of loans	'		'	'
30-59 days past due	4,000,000		6,000,000	'
60-89 days past due	1,000,000		2,000,000	'
Greater than 90 days past due	22,000,000		21,000,000	'
Total past due	27,000,000		30,000,000	'
Current	2,003,000,000		1,872,000,000	'
Total	2,030,000,000		1,902,000,000	1,883,000,000
Greater than 90 days and accruing	0		0	'
Originated loans [Member] | Total consumer [Member] | Home equity [Member]	'		'	'
Aging analysis of loans	'		'	'
30-59 days past due	3,000,000		3,000,000	'
60-89 days past due	1,000,000		2,000,000	'
Greater than 90 days past due	15,000,000		12,000,000	'
Total past due	18,000,000		17,000,000	'
Current	1,763,000,000		1,601,000,000	'
Total	1,781,000,000		1,618,000,000	1,537,000,000
Greater than 90 days and accruing	0		0	'
Originated loans [Member] | Total consumer [Member] | Indirect auto [Member]	'		'	'
Aging analysis of loans	'		'	'
30-59 days past due	17,000,000		12,000,000	'
60-89 days past due	3,000,000		2,000,000	'
Greater than 90 days past due	5,000,000		3,000,000	'
Total past due	25,000,000		18,000,000	'
Current	2,049,000,000		1,526,000,000	'
Total	2,074,000,000		1,544,000,000	1,339,000,000
Greater than 90 days and accruing	0		0	'
Originated loans [Member] | Total consumer [Member] | Credit cards [Member]	'		'	'
Aging analysis of loans	'		'	'
30-59 days past due	2,000,000		2,000,000	'
60-89 days past due	1,000,000		1,000,000	'
Greater than 90 days past due	2,000,000		3,000,000	'
Total past due	5,000,000		6,000,000	'
Current	307,000,000		319,000,000	'
Total	313,000,000		325,000,000	312,000,000
Greater than 90 days and accruing	2,000,000		3,000,000	'
Originated loans [Member] | Total consumer [Member] | Other consumer [Member]	'		'	'
Aging analysis of loans	'		'	'
30-59 days past due	3,000,000		3,000,000	'
60-89 days past due	1,000,000		1,000,000	'
Greater than 90 days past due	3,000,000		3,000,000	'
Total past due	7,000,000		7,000,000	'
Current	279,000,000		295,000,000	'
Total	286,000,000		302,000,000	306,000,000
Greater than 90 days and accruing	0		0	'
Acquired loans [Member]	'		'	'
Aging analysis of loans	'		'	'
30-59 days past due	25,000,000		35,000,000	'
60-89 days past due	11,000,000		23,000,000	'
Greater than 90 days past due	124,000,000		130,000,000	'
Total past due	160,000,000		188,000,000	'
Current	3,768,000,000		4,330,000,000	'
Total	3,928,000,000		4,517,000,000	4,878,000,000
Greater than 90 days and accruing	106,000,000		110,000,000	'
Acquired loans [Member] | Total commercial [Member]	'		'	'
Aging analysis of loans	'		'	'
30-59 days past due	6,000,000		10,000,000	'
60-89 days past due	1,000,000		8,000,000	'
Greater than 90 days past due	41,000,000		45,000,000	'
Total past due	47,000,000		63,000,000	'
Current	1,445,000,000		1,774,000,000	'
Total	1,492,000,000		1,838,000,000	'
Greater than 90 days and accruing	37,000,000		41,000,000	'
Acquired loans [Member] | Total commercial [Member] | Commercial real estate [Member]	'		'	'
Aging analysis of loans	'		'	'
30-59 days past due	4,000,000		8,000,000	'
60-89 days past due	1,000,000		8,000,000	'
Greater than 90 days past due	33,000,000		37,000,000	'
Total past due	38,000,000		52,000,000	'
Current	1,086,000,000		1,371,000,000	'
Total	1,124,000,000		1,423,000,000	1,604,000,000
Greater than 90 days and accruing	33,000,000		36,000,000	'
Acquired loans [Member] | Total commercial [Member] | Business [Member]	'		'	'
Aging analysis of loans	'		'	'
30-59 days past due	1,000,000		2,000,000	'
60-89 days past due	0		1,000,000	'
Greater than 90 days past due	8,000,000		8,000,000	'
Total past due	9,000,000		11,000,000	'
Current	359,000,000		403,000,000	'
Total	368,000,000		414,000,000	464,000,000
Greater than 90 days and accruing	5,000,000		5,000,000	'
Acquired loans [Member] | Total consumer [Member]	'		'	'
Aging analysis of loans	'		'	'
30-59 days past due	19,000,000		26,000,000	'
60-89 days past due	10,000,000		15,000,000	'
Greater than 90 days past due	83,000,000		84,000,000	'
Total past due	112,000,000		125,000,000	'
Current	2,323,000,000		2,555,000,000	'
Total	2,436,000,000		2,680,000,000	'
Greater than 90 days and accruing	69,000,000		70,000,000	'
Acquired loans [Member] | Total consumer [Member] | Residential real estate [Member]	'		'	'
Aging analysis of loans	'		'	'
30-59 days past due	14,000,000		19,000,000	'
60-89 days past due	6,000,000		11,000,000	'
Greater than 90 days past due	63,000,000		64,000,000	'
Total past due	83,000,000		94,000,000	'
Current	1,247,000,000		1,452,000,000	'
Total	1,330,000,000		1,546,000,000	1,637,000,000
Greater than 90 days and accruing	63,000,000		64,000,000	'
Acquired loans [Member] | Total consumer [Member] | Home equity [Member]	'		'	'
Aging analysis of loans	'		'	'
30-59 days past due	5,000,000		7,000,000	'
60-89 days past due	3,000,000		4,000,000	'
Greater than 90 days past due	20,000,000		20,000,000	'
Total past due	29,000,000		31,000,000	'
Current	1,076,000,000		1,103,000,000	'
Total	1,105,000,000		1,134,000,000	1,170,000,000
Greater than 90 days and accruing	6,000,000		5,000,000	'
Acquired loans [Member] | Total consumer [Member] | Indirect auto [Member]	'		'	'
Aging analysis of loans	'		'	'
Total	0		0	'
Acquired loans [Member] | Total consumer [Member] | Credit cards [Member]	'		'	'
Aging analysis of loans	'		'	'
Total	0		0	0
Acquired loans [Member] | Total consumer [Member] | Other consumer [Member]	'		'	'
Aging analysis of loans	'		'	'
Total	$0		$0	$4,000,000
[1]	Includes credit card loans, loans that have matured and are in the process of collection, and acquired loans that were originally recorded at fair value upon acquisition. Acquired loans are considered to be accruing as we can reasonably estimate future cash flows on these acquired loans and we expect to fully collect the carrying value of these loans net of the allowance for acquired loan losses. Therefore, we are accreting the difference between the carrying value of these loans and their expected cash flows into interest income.

Loans_and_Leases_Commercial_Cr

Loans and Leases - Commercial Credit Quality Indicators (Details) (USD $)	Sep. 30, 2014	Dec. 31, 2013	Sep. 30, 2013
In Millions, unless otherwise specified
Information about the credit quality of our commercial loan portfolio	'	'	'
Loans receivable	$22,770	$21,440	'
Total commercial [Member]	'	'	'
Information about the credit quality of our commercial loan portfolio	'	'	'
Loans receivable	13,850	13,068	'
Total commercial [Member] | Business [Member]	'	'	'
Information about the credit quality of our commercial loan portfolio	'	'	'
Loans receivable	5,836	5,290	'
Originated loans [Member]	'	'	'
Information about the credit quality of our commercial loan portfolio	'	'	'
Loans receivable	18,842	16,922	16,212
Originated loans [Member] | Total commercial [Member]	'	'	'
Information about the credit quality of our commercial loan portfolio	'	'	'
Loans receivable	12,358	11,231	'
Percent of total	100.00%	100.00%	'
Originated loans [Member] | Total commercial [Member] | Pass [Member]	'	'	'
Information about the credit quality of our commercial loan portfolio	'	'	'
Loans receivable	11,614	10,618	'
Percent of total	93.90%	94.60%	'
Originated loans [Member] | Total commercial [Member] | Criticized [Member]	'	'	'
Information about the credit quality of our commercial loan portfolio	'	'	'
Loans receivable	743	612	'
Percent of total	6.10%	5.40%	'
Originated loans [Member] | Total commercial [Member] | Criticized [Member] | Accrual [Member]	'	'	'
Information about the credit quality of our commercial loan portfolio	'	'	'
Loans receivable	649	517	'
Percent of total	5.30%	4.60%	'
Originated loans [Member] | Total commercial [Member] | Criticized [Member] | Nonaccrual [Member]	'	'	'
Information about the credit quality of our commercial loan portfolio	'	'	'
Loans receivable	94	95	'
Percent of total	0.80%	0.80%	'
Originated loans [Member] | Total commercial [Member] | Business [Member]	'	'	'
Information about the credit quality of our commercial loan portfolio	'	'	'
Loans receivable	5,468	4,876	4,741
Originated loans [Member] | Total commercial [Member] | Business [Member] | Pass [Member]	'	'	'
Information about the credit quality of our commercial loan portfolio	'	'	'
Loans receivable	5,108	4,590	'
Originated loans [Member] | Total commercial [Member] | Business [Member] | Criticized [Member]	'	'	'
Information about the credit quality of our commercial loan portfolio	'	'	'
Loans receivable	360	286	'
Originated loans [Member] | Total commercial [Member] | Business [Member] | Criticized [Member] | Accrual [Member]	'	'	'
Information about the credit quality of our commercial loan portfolio	'	'	'
Loans receivable	323	244	'
Originated loans [Member] | Total commercial [Member] | Business [Member] | Criticized [Member] | Nonaccrual [Member]	'	'	'
Information about the credit quality of our commercial loan portfolio	'	'	'
Loans receivable	37	42	'
Originated loans [Member] | Total commercial [Member] | Commercial real estate [Member]	'	'	'
Information about the credit quality of our commercial loan portfolio	'	'	'
Loans receivable	6,890	6,354	6,094
Originated loans [Member] | Total commercial [Member] | Commercial real estate [Member] | Pass [Member]	'	'	'
Information about the credit quality of our commercial loan portfolio	'	'	'
Loans receivable	6,507	6,028	'
Originated loans [Member] | Total commercial [Member] | Commercial real estate [Member] | Criticized [Member]	'	'	'
Information about the credit quality of our commercial loan portfolio	'	'	'
Loans receivable	383	327	'
Originated loans [Member] | Total commercial [Member] | Commercial real estate [Member] | Criticized [Member] | Accrual [Member]	'	'	'
Information about the credit quality of our commercial loan portfolio	'	'	'
Loans receivable	326	273	'
Originated loans [Member] | Total commercial [Member] | Commercial real estate [Member] | Criticized [Member] | Nonaccrual [Member]	'	'	'
Information about the credit quality of our commercial loan portfolio	'	'	'
Loans receivable	57	53	'
Acquired loans [Member]	'	'	'
Information about the credit quality of our commercial loan portfolio	'	'	'
Loans receivable	3,928	4,517	4,878
Acquired loans [Member] | Total commercial [Member]	'	'	'
Information about the credit quality of our commercial loan portfolio	'	'	'
Loans receivable	1,492	1,838	'
Percent of total	100.00%	100.00%	'
Acquired loans [Member] | Total commercial [Member] | Pass [Member]	'	'	'
Information about the credit quality of our commercial loan portfolio	'	'	'
Loans receivable	1,315	1,619	'
Percent of total	88.20%	88.20%	'
Acquired loans [Member] | Total commercial [Member] | Criticized [Member]	'	'	'
Information about the credit quality of our commercial loan portfolio	'	'	'
Loans receivable	177	218	'
Percent of total	11.80%	11.80%	'
Acquired loans [Member] | Total commercial [Member] | Criticized [Member] | Accrual [Member]	'	'	'
Information about the credit quality of our commercial loan portfolio	'	'	'
Loans receivable	170	208	'
Percent of total	11.40%	11.30%	'
Acquired loans [Member] | Total commercial [Member] | Criticized [Member] | Nonaccrual [Member]	'	'	'
Information about the credit quality of our commercial loan portfolio	'	'	'
Loans receivable	7	10	'
Percent of total	0.40%	0.50%	'
Acquired loans [Member] | Total commercial [Member] | Business [Member]	'	'	'
Information about the credit quality of our commercial loan portfolio	'	'	'
Loans receivable	368	414	464
Acquired loans [Member] | Total commercial [Member] | Business [Member] | Pass [Member]	'	'	'
Information about the credit quality of our commercial loan portfolio	'	'	'
Loans receivable	306	359	'
Acquired loans [Member] | Total commercial [Member] | Business [Member] | Criticized [Member]	'	'	'
Information about the credit quality of our commercial loan portfolio	'	'	'
Loans receivable	62	55	'
Acquired loans [Member] | Total commercial [Member] | Business [Member] | Criticized [Member] | Accrual [Member]	'	'	'
Information about the credit quality of our commercial loan portfolio	'	'	'
Loans receivable	56	46	'
Acquired loans [Member] | Total commercial [Member] | Business [Member] | Criticized [Member] | Nonaccrual [Member]	'	'	'
Information about the credit quality of our commercial loan portfolio	'	'	'
Loans receivable	7	9	'
Acquired loans [Member] | Total commercial [Member] | Commercial real estate [Member]	'	'	'
Information about the credit quality of our commercial loan portfolio	'	'	'
Loans receivable	1,124	1,423	1,604
Acquired loans [Member] | Total commercial [Member] | Commercial real estate [Member] | Pass [Member]	'	'	'
Information about the credit quality of our commercial loan portfolio	'	'	'
Loans receivable	1,009	1,260	'
Acquired loans [Member] | Total commercial [Member] | Commercial real estate [Member] | Criticized [Member]	'	'	'
Information about the credit quality of our commercial loan portfolio	'	'	'
Loans receivable	115	163	'
Acquired loans [Member] | Total commercial [Member] | Commercial real estate [Member] | Criticized [Member] | Accrual [Member]	'	'	'
Information about the credit quality of our commercial loan portfolio	'	'	'
Loans receivable	115	162	'
Acquired loans [Member] | Total commercial [Member] | Commercial real estate [Member] | Criticized [Member] | Nonaccrual [Member]	'	'	'
Information about the credit quality of our commercial loan portfolio	'	'	'
Loans receivable	$0	$1	'

Loans_and_Leases_Consumer_Cred

Loans and Leases - Consumer Credit Quality Indicators - FICO Score(Details) (USD $)	Sep. 30, 2014	Dec. 31, 2013	Sep. 30, 2013
In Millions, unless otherwise specified
Information about the credit quality of our consumer loan portfolio	'	'	'
Loans receivable	$22,770	$21,440	'
Originated loans [Member]	'	'	'
Information about the credit quality of our consumer loan portfolio	'	'	'
Loans receivable	18,842	16,922	16,212
Acquired loans [Member]	'	'	'
Information about the credit quality of our consumer loan portfolio	'	'	'
Loans receivable	3,928	4,517	4,878
Total consumer [Member]	'	'	'
Information about the credit quality of our consumer loan portfolio	'	'	'
Loans receivable	8,920	8,371	'
Total consumer [Member] | Residential real estate [Member]	'	'	'
Information about the credit quality of our consumer loan portfolio	'	'	'
Loans receivable	3,361	3,448	'
Total consumer [Member] | Home equity [Member]	'	'	'
Information about the credit quality of our consumer loan portfolio	'	'	'
Loans receivable	2,887	2,752	'
Total consumer [Member] | Indirect auto [Member]	'	'	'
Information about the credit quality of our consumer loan portfolio	'	'	'
Loans receivable	2,074	1,544	'
Total consumer [Member] | Originated loans [Member]	'	'	'
Information about the credit quality of our consumer loan portfolio	'	'	'
Loans receivable	6,484	5,691	'
Percent of total	100.00%	100.00%	'
Total consumer [Member] | Originated loans [Member] | Over 700 [Member]	'	'	'
Information about the credit quality of our consumer loan portfolio	'	'	'
Loans receivable	5,096	4,324	'
Percent of total	78.60%	76.00%	'
Total consumer [Member] | Originated loans [Member] | 660 - 700 [Member]	'	'	'
Information about the credit quality of our consumer loan portfolio	'	'	'
Loans receivable	729	696	'
Percent of total	11.20%	12.20%	'
Total consumer [Member] | Originated loans [Member] | 620 - 660 [Member]	'	'	'
Information about the credit quality of our consumer loan portfolio	'	'	'
Loans receivable	337	328	'
Percent of total	5.20%	5.80%	'
Total consumer [Member] | Originated loans [Member] | 580 - 620 [Member]	'	'	'
Information about the credit quality of our consumer loan portfolio	'	'	'
Loans receivable	149	142	'
Percent of total	2.30%	2.50%	'
Total consumer [Member] | Originated loans [Member] | Less Than 580 [Member]	'	'	'
Information about the credit quality of our consumer loan portfolio	'	'	'
Loans receivable	143	135	'
Percent of total	2.20%	2.40%	'
Total consumer [Member] | Originated loans [Member] | No Score [Member]	'	'	'
Information about the credit quality of our consumer loan portfolio	'	'	'
Loans receivable	32	66	'
Percent of total	0.50%	1.10%	'
Total consumer [Member] | Originated loans [Member] | Residential real estate [Member]	'	'	'
Information about the credit quality of our consumer loan portfolio	'	'	'
Loans receivable	2,030	1,902	1,883
Total consumer [Member] | Originated loans [Member] | Residential real estate [Member] | Over 700 [Member]	'	'	'
Information about the credit quality of our consumer loan portfolio	'	'	'
Loans receivable	1,781	1,609	'
Total consumer [Member] | Originated loans [Member] | Residential real estate [Member] | 660 - 700 [Member]	'	'	'
Information about the credit quality of our consumer loan portfolio	'	'	'
Loans receivable	120	128	'
Total consumer [Member] | Originated loans [Member] | Residential real estate [Member] | 620 - 660 [Member]	'	'	'
Information about the credit quality of our consumer loan portfolio	'	'	'
Loans receivable	57	56	'
Total consumer [Member] | Originated loans [Member] | Residential real estate [Member] | 580 - 620 [Member]	'	'	'
Information about the credit quality of our consumer loan portfolio	'	'	'
Loans receivable	33	32	'
Total consumer [Member] | Originated loans [Member] | Residential real estate [Member] | Less Than 580 [Member]	'	'	'
Information about the credit quality of our consumer loan portfolio	'	'	'
Loans receivable	32	38	'
Total consumer [Member] | Originated loans [Member] | Residential real estate [Member] | No Score [Member]	'	'	'
Information about the credit quality of our consumer loan portfolio	'	'	'
Loans receivable	8	39	'
Total consumer [Member] | Originated loans [Member] | Home equity [Member]	'	'	'
Information about the credit quality of our consumer loan portfolio	'	'	'
Loans receivable	1,781	1,618	1,537
Total consumer [Member] | Originated loans [Member] | Home equity [Member] | Over 700 [Member]	'	'	'
Information about the credit quality of our consumer loan portfolio	'	'	'
Loans receivable	1,473	1,327	'
Total consumer [Member] | Originated loans [Member] | Home equity [Member] | 660 - 700 [Member]	'	'	'
Information about the credit quality of our consumer loan portfolio	'	'	'
Loans receivable	171	158	'
Total consumer [Member] | Originated loans [Member] | Home equity [Member] | 620 - 660 [Member]	'	'	'
Information about the credit quality of our consumer loan portfolio	'	'	'
Loans receivable	72	69	'
Total consumer [Member] | Originated loans [Member] | Home equity [Member] | 580 - 620 [Member]	'	'	'
Information about the credit quality of our consumer loan portfolio	'	'	'
Loans receivable	31	30	'
Total consumer [Member] | Originated loans [Member] | Home equity [Member] | Less Than 580 [Member]	'	'	'
Information about the credit quality of our consumer loan portfolio	'	'	'
Loans receivable	31	30	'
Total consumer [Member] | Originated loans [Member] | Home equity [Member] | No Score [Member]	'	'	'
Information about the credit quality of our consumer loan portfolio	'	'	'
Loans receivable	2	3	'
Total consumer [Member] | Originated loans [Member] | Indirect auto [Member]	'	'	'
Information about the credit quality of our consumer loan portfolio	'	'	'
Loans receivable	2,074	1,544	1,339
Total consumer [Member] | Originated loans [Member] | Indirect auto [Member] | Over 700 [Member]	'	'	'
Information about the credit quality of our consumer loan portfolio	'	'	'
Loans receivable	1,454	993	'
Total consumer [Member] | Originated loans [Member] | Indirect auto [Member] | 660 - 700 [Member]	'	'	'
Information about the credit quality of our consumer loan portfolio	'	'	'
Loans receivable	338	304	'
Total consumer [Member] | Originated loans [Member] | Indirect auto [Member] | 620 - 660 [Member]	'	'	'
Information about the credit quality of our consumer loan portfolio	'	'	'
Loans receivable	161	149	'
Total consumer [Member] | Originated loans [Member] | Indirect auto [Member] | 580 - 620 [Member]	'	'	'
Information about the credit quality of our consumer loan portfolio	'	'	'
Loans receivable	60	55	'
Total consumer [Member] | Originated loans [Member] | Indirect auto [Member] | Less Than 580 [Member]	'	'	'
Information about the credit quality of our consumer loan portfolio	'	'	'
Loans receivable	61	43	'
Total consumer [Member] | Originated loans [Member] | Indirect auto [Member] | No Score [Member]	'	'	'
Information about the credit quality of our consumer loan portfolio	'	'	'
Loans receivable	0	0	'
Total consumer [Member] | Originated loans [Member] | Credit cards [Member]	'	'	'
Information about the credit quality of our consumer loan portfolio	'	'	'
Loans receivable	313	325	312
Total consumer [Member] | Originated loans [Member] | Credit cards [Member] | Over 700 [Member]	'	'	'
Information about the credit quality of our consumer loan portfolio	'	'	'
Loans receivable	216	223	'
Total consumer [Member] | Originated loans [Member] | Credit cards [Member] | 660 - 700 [Member]	'	'	'
Information about the credit quality of our consumer loan portfolio	'	'	'
Loans receivable	52	53	'
Total consumer [Member] | Originated loans [Member] | Credit cards [Member] | 620 - 660 [Member]	'	'	'
Information about the credit quality of our consumer loan portfolio	'	'	'
Loans receivable	23	25	'
Total consumer [Member] | Originated loans [Member] | Credit cards [Member] | 580 - 620 [Member]	'	'	'
Information about the credit quality of our consumer loan portfolio	'	'	'
Loans receivable	11	12	'
Total consumer [Member] | Originated loans [Member] | Credit cards [Member] | Less Than 580 [Member]	'	'	'
Information about the credit quality of our consumer loan portfolio	'	'	'
Loans receivable	7	8	'
Total consumer [Member] | Originated loans [Member] | Credit cards [Member] | No Score [Member]	'	'	'
Information about the credit quality of our consumer loan portfolio	'	'	'
Loans receivable	3	4	'
Total consumer [Member] | Originated loans [Member] | Other consumer [Member]	'	'	'
Information about the credit quality of our consumer loan portfolio	'	'	'
Loans receivable	286	302	306
Total consumer [Member] | Originated loans [Member] | Other consumer [Member] | Over 700 [Member]	'	'	'
Information about the credit quality of our consumer loan portfolio	'	'	'
Loans receivable	171	173	'
Total consumer [Member] | Originated loans [Member] | Other consumer [Member] | 660 - 700 [Member]	'	'	'
Information about the credit quality of our consumer loan portfolio	'	'	'
Loans receivable	47	53	'
Total consumer [Member] | Originated loans [Member] | Other consumer [Member] | 620 - 660 [Member]	'	'	'
Information about the credit quality of our consumer loan portfolio	'	'	'
Loans receivable	24	28	'
Total consumer [Member] | Originated loans [Member] | Other consumer [Member] | 580 - 620 [Member]	'	'	'
Information about the credit quality of our consumer loan portfolio	'	'	'
Loans receivable	14	14	'
Total consumer [Member] | Originated loans [Member] | Other consumer [Member] | Less Than 580 [Member]	'	'	'
Information about the credit quality of our consumer loan portfolio	'	'	'
Loans receivable	12	15	'
Total consumer [Member] | Originated loans [Member] | Other consumer [Member] | No Score [Member]	'	'	'
Information about the credit quality of our consumer loan portfolio	'	'	'
Loans receivable	18	20	'
Total consumer [Member] | Acquired loans [Member]	'	'	'
Information about the credit quality of our consumer loan portfolio	'	'	'
Loans receivable	2,436	2,680	'
Percent of total	100.00%	100.00%	'
Total consumer [Member] | Acquired loans [Member] | Over 700 [Member]	'	'	'
Information about the credit quality of our consumer loan portfolio	'	'	'
Loans receivable	1,782	1,948	'
Percent of total	73.10%	72.70%	'
Total consumer [Member] | Acquired loans [Member] | 660 - 700 [Member]	'	'	'
Information about the credit quality of our consumer loan portfolio	'	'	'
Loans receivable	187	218	'
Percent of total	7.70%	8.10%	'
Total consumer [Member] | Acquired loans [Member] | 620 - 660 [Member]	'	'	'
Information about the credit quality of our consumer loan portfolio	'	'	'
Loans receivable	121	119	'
Percent of total	5.00%	4.40%	'
Total consumer [Member] | Acquired loans [Member] | 580 - 620 [Member]	'	'	'
Information about the credit quality of our consumer loan portfolio	'	'	'
Loans receivable	91	95	'
Percent of total	3.70%	3.60%	'
Total consumer [Member] | Acquired loans [Member] | Less Than 580 [Member]	'	'	'
Information about the credit quality of our consumer loan portfolio	'	'	'
Loans receivable	102	114	'
Percent of total	4.20%	4.30%	'
Total consumer [Member] | Acquired loans [Member] | No Score [Member]	'	'	'
Information about the credit quality of our consumer loan portfolio	'	'	'
Loans receivable	154	185	'
Percent of total	6.30%	6.90%	'
Total consumer [Member] | Acquired loans [Member] | Residential real estate [Member]	'	'	'
Information about the credit quality of our consumer loan portfolio	'	'	'
Loans receivable	1,330	1,546	1,637
Total consumer [Member] | Acquired loans [Member] | Residential real estate [Member] | Over 700 [Member]	'	'	'
Information about the credit quality of our consumer loan portfolio	'	'	'
Loans receivable	920	1,074	'
Total consumer [Member] | Acquired loans [Member] | Residential real estate [Member] | 660 - 700 [Member]	'	'	'
Information about the credit quality of our consumer loan portfolio	'	'	'
Loans receivable	96	115	'
Total consumer [Member] | Acquired loans [Member] | Residential real estate [Member] | 620 - 660 [Member]	'	'	'
Information about the credit quality of our consumer loan portfolio	'	'	'
Loans receivable	62	61	'
Total consumer [Member] | Acquired loans [Member] | Residential real estate [Member] | 580 - 620 [Member]	'	'	'
Information about the credit quality of our consumer loan portfolio	'	'	'
Loans receivable	51	57	'
Total consumer [Member] | Acquired loans [Member] | Residential real estate [Member] | Less Than 580 [Member]	'	'	'
Information about the credit quality of our consumer loan portfolio	'	'	'
Loans receivable	66	75	'
Total consumer [Member] | Acquired loans [Member] | Residential real estate [Member] | No Score [Member]	'	'	'
Information about the credit quality of our consumer loan portfolio	'	'	'
Loans receivable	135	164	'
Total consumer [Member] | Acquired loans [Member] | Home equity [Member]	'	'	'
Information about the credit quality of our consumer loan portfolio	'	'	'
Loans receivable	1,105	1,134	1,170
Total consumer [Member] | Acquired loans [Member] | Home equity [Member] | Over 700 [Member]	'	'	'
Information about the credit quality of our consumer loan portfolio	'	'	'
Loans receivable	861	874	'
Total consumer [Member] | Acquired loans [Member] | Home equity [Member] | 660 - 700 [Member]	'	'	'
Information about the credit quality of our consumer loan portfolio	'	'	'
Loans receivable	91	103	'
Total consumer [Member] | Acquired loans [Member] | Home equity [Member] | 620 - 660 [Member]	'	'	'
Information about the credit quality of our consumer loan portfolio	'	'	'
Loans receivable	59	57	'
Total consumer [Member] | Acquired loans [Member] | Home equity [Member] | 580 - 620 [Member]	'	'	'
Information about the credit quality of our consumer loan portfolio	'	'	'
Loans receivable	40	39	'
Total consumer [Member] | Acquired loans [Member] | Home equity [Member] | Less Than 580 [Member]	'	'	'
Information about the credit quality of our consumer loan portfolio	'	'	'
Loans receivable	36	40	'
Total consumer [Member] | Acquired loans [Member] | Home equity [Member] | No Score [Member]	'	'	'
Information about the credit quality of our consumer loan portfolio	'	'	'
Loans receivable	19	21	'
Total consumer [Member] | Acquired loans [Member] | Indirect auto [Member]	'	'	'
Information about the credit quality of our consumer loan portfolio	'	'	'
Loans receivable	0	0	'
Total consumer [Member] | Acquired loans [Member] | Indirect auto [Member] | Over 700 [Member]	'	'	'
Information about the credit quality of our consumer loan portfolio	'	'	'
Loans receivable	0	0	'
Total consumer [Member] | Acquired loans [Member] | Indirect auto [Member] | 660 - 700 [Member]	'	'	'
Information about the credit quality of our consumer loan portfolio	'	'	'
Loans receivable	0	0	'
Total consumer [Member] | Acquired loans [Member] | Indirect auto [Member] | 620 - 660 [Member]	'	'	'
Information about the credit quality of our consumer loan portfolio	'	'	'
Loans receivable	0	0	'
Total consumer [Member] | Acquired loans [Member] | Indirect auto [Member] | 580 - 620 [Member]	'	'	'
Information about the credit quality of our consumer loan portfolio	'	'	'
Loans receivable	0	0	'
Total consumer [Member] | Acquired loans [Member] | Indirect auto [Member] | Less Than 580 [Member]	'	'	'
Information about the credit quality of our consumer loan portfolio	'	'	'
Loans receivable	0	0	'
Total consumer [Member] | Acquired loans [Member] | Indirect auto [Member] | No Score [Member]	'	'	'
Information about the credit quality of our consumer loan portfolio	'	'	'
Loans receivable	0	0	'
Total consumer [Member] | Acquired loans [Member] | Credit cards [Member]	'	'	'
Information about the credit quality of our consumer loan portfolio	'	'	'
Loans receivable	0	0	0
Total consumer [Member] | Acquired loans [Member] | Credit cards [Member] | Over 700 [Member]	'	'	'
Information about the credit quality of our consumer loan portfolio	'	'	'
Loans receivable	0	0	'
Total consumer [Member] | Acquired loans [Member] | Credit cards [Member] | 660 - 700 [Member]	'	'	'
Information about the credit quality of our consumer loan portfolio	'	'	'
Loans receivable	0	0	'
Total consumer [Member] | Acquired loans [Member] | Credit cards [Member] | 620 - 660 [Member]	'	'	'
Information about the credit quality of our consumer loan portfolio	'	'	'
Loans receivable	0	0	'
Total consumer [Member] | Acquired loans [Member] | Credit cards [Member] | 580 - 620 [Member]	'	'	'
Information about the credit quality of our consumer loan portfolio	'	'	'
Loans receivable	0	0	'
Total consumer [Member] | Acquired loans [Member] | Credit cards [Member] | Less Than 580 [Member]	'	'	'
Information about the credit quality of our consumer loan portfolio	'	'	'
Loans receivable	0	0	'
Total consumer [Member] | Acquired loans [Member] | Credit cards [Member] | No Score [Member]	'	'	'
Information about the credit quality of our consumer loan portfolio	'	'	'
Loans receivable	0	0	'
Total consumer [Member] | Acquired loans [Member] | Other consumer [Member]	'	'	'
Information about the credit quality of our consumer loan portfolio	'	'	'
Loans receivable	0	0	4
Total consumer [Member] | Acquired loans [Member] | Other consumer [Member] | Over 700 [Member]	'	'	'
Information about the credit quality of our consumer loan portfolio	'	'	'
Loans receivable	0	0	'
Total consumer [Member] | Acquired loans [Member] | Other consumer [Member] | 660 - 700 [Member]	'	'	'
Information about the credit quality of our consumer loan portfolio	'	'	'
Loans receivable	0	0	'
Total consumer [Member] | Acquired loans [Member] | Other consumer [Member] | 620 - 660 [Member]	'	'	'
Information about the credit quality of our consumer loan portfolio	'	'	'
Loans receivable	0	0	'
Total consumer [Member] | Acquired loans [Member] | Other consumer [Member] | 580 - 620 [Member]	'	'	'
Information about the credit quality of our consumer loan portfolio	'	'	'
Loans receivable	0	0	'
Total consumer [Member] | Acquired loans [Member] | Other consumer [Member] | Less Than 580 [Member]	'	'	'
Information about the credit quality of our consumer loan portfolio	'	'	'
Loans receivable	0	0	'
Total consumer [Member] | Acquired loans [Member] | Other consumer [Member] | No Score [Member]	'	'	'
Information about the credit quality of our consumer loan portfolio	'	'	'
Loans receivable	$0	$0	'

Loans_and_Leases_Summary_of_Tr

Loans and Leases - Summary of Troubled Debt Restructurings (Details) (USD $)	Sep. 30, 2014		Dec. 31, 2013
In Millions, unless otherwise specified
Aggregate recorded investment of impaired loans with terms through troubled debt restructuring	'		'
Accruing interest	$69		$52
Nonaccrual	55		56
Total troubled debt restructurings	$124	[1]	$108	[1]
[1]	Includes 87 and 40 acquired loans that were restructured with a recorded investment of $4 million and $1 million at September 30, 2014 and December 31, 2013

Loans_and_Leases_Troubled_Debt

Loans and Leases - Troubled Debt Restructuring by Concession Type (Details) (USD $)	3 Months Ended				9 Months Ended
In Millions, unless otherwise specified	Sep. 30, 2014		Sep. 30, 2013		Sep. 30, 2014		Sep. 30, 2013
	Contract		Contract		Contract		Contract
Financing effects of our modifications	'		'		'		'
Count	79		85		373		228
Postmodification recorded investment	$4	[1]	$9	[1]	$53	[1]	$52	[1]
Premodification allowance for loan losses	0		1		7		4
Postmodification allowance for loan losses	0		0		2		2
Total commercial [Member]	'		'		'		'
Financing effects of our modifications	'		'		'		'
Count	7		12		23		28
Postmodification recorded investment	1	[1]	7	[1]	43	[1]	44	[1]
Premodification allowance for loan losses	0		1		7		4
Postmodification allowance for loan losses	0		0		2		1
Total commercial [Member] | Commercial real estate [Member] | Extension of term and rate reduction [Member]	'		'		'		'
Financing effects of our modifications	'		'		'		'
Count	'		'		3		6
Postmodification recorded investment	'		'		1	[1]	16	[1]
Premodification allowance for loan losses	'		'		0		1
Postmodification allowance for loan losses	'		'		0		0
Total commercial [Member] | Commercial real estate [Member] | Extension of term [Member]	'		'		'		'
Financing effects of our modifications	'		'		'		'
Count	'		1		5		5
Postmodification recorded investment	'		3	[1]	14	[1]	9	[1]
Premodification allowance for loan losses	'		0		1		1
Postmodification allowance for loan losses	'		0		0		1
Total commercial [Member] | Commercial real estate [Member] | Deferral of Principal [Member]	'		'		'		'
Financing effects of our modifications	'		'		'		'
Count	'		'		'		1
Postmodification recorded investment	'		'		'		8	[1]
Premodification allowance for loan losses	'		'		'		0
Postmodification allowance for loan losses	'		'		'		0
Total commercial [Member] | Commercial Business [Member] | Extension of term and rate reduction [Member]	'		'		'		'
Financing effects of our modifications	'		'		'		'
Count	'		6		2		7
Postmodification recorded investment	'		1	[1]	0	[1]	1	[1]
Premodification allowance for loan losses	'		0		0		0
Postmodification allowance for loan losses	'		0		0		0
Total commercial [Member] | Commercial Business [Member] | Extension of term [Member]	'		'		'		'
Financing effects of our modifications	'		'		'		'
Count	7		5		13		9
Postmodification recorded investment	1	[1]	3	[1]	28	[1]	10	[1]
Premodification allowance for loan losses	0		0		6		2
Postmodification allowance for loan losses	0		0		1		0
Total consumer [Member]	'		'		'		'
Financing effects of our modifications	'		'		'		'
Count	72		73		350		200
Postmodification recorded investment	2	[1]	2	[1]	10	[1]	7	[1]
Premodification allowance for loan losses	0		0		0		0
Postmodification allowance for loan losses	0		0		0		0
Total consumer [Member] | Residential real estate [Member] | Extension of term and rate reduction [Member]	'		'		'		'
Financing effects of our modifications	'		'		'		'
Count	3		4		7		10
Postmodification recorded investment	0	[1]	0	[1]	0	[1]	2	[1]
Premodification allowance for loan losses	0		0		0		0
Postmodification allowance for loan losses	0		0		0		0
Total consumer [Member] | Residential real estate [Member] | Extension of term [Member]	'		'		'		'
Financing effects of our modifications	'		'		'		'
Count	1		1		4		2
Postmodification recorded investment	0	[1]	0	[1]	0	[1]	0	[1]
Premodification allowance for loan losses	0		0		0		0
Postmodification allowance for loan losses	0		0		0		0
Total consumer [Member] | Residential real estate [Member] | Deferral of principal and extension of term [Member]	'		'		'		'
Financing effects of our modifications	'		'		'		'
Count	'		2		7		4
Postmodification recorded investment	'		0	[1]	1	[1]	0	[1]
Premodification allowance for loan losses	'		0		0		0
Postmodification allowance for loan losses	'		0		0		0
Total consumer [Member] | Residential real estate [Member] | Chapter 7 bankruptcy [Member]	'		'		'		'
Financing effects of our modifications	'		'		'		'
Count	2		4		14		12
Postmodification recorded investment	0	[1]	0	[1]	1	[1]	1	[1]
Premodification allowance for loan losses	0		0		0		0
Postmodification allowance for loan losses	0		0		0		0
Total consumer [Member] | Residential real estate [Member] | Rate reduction [Member]	'		'		'		'
Financing effects of our modifications	'		'		'		'
Count	'		'		2		3
Postmodification recorded investment	'		'		0	[1]	0	[1]
Premodification allowance for loan losses	'		'		0		0
Postmodification allowance for loan losses	'		'		0		0
Total consumer [Member] | Home equity [Member] | Extension of term and rate reduction [Member]	'		'		'		'
Financing effects of our modifications	'		'		'		'
Count	2		1		7		2
Postmodification recorded investment	0	[1]	0	[1]	0	[1]	0	[1]
Premodification allowance for loan losses	0		0		0		0
Postmodification allowance for loan losses	0		0		0		0
Total consumer [Member] | Home equity [Member] | Extension of term [Member]	'		'		'		'
Financing effects of our modifications	'		'		'		'
Count	2		'		3		'
Postmodification recorded investment	0	[1]	'		0	[1]	'
Premodification allowance for loan losses	0		'		0		'
Postmodification allowance for loan losses	0		'		0		'
Total consumer [Member] | Home equity [Member] | Deferral of principal and extension of term [Member]	'		'		'		'
Financing effects of our modifications	'		'		'		'
Count	'		1		2		1
Postmodification recorded investment	'		0	[1]	0	[1]	0	[1]
Premodification allowance for loan losses	'		0		0		0
Postmodification allowance for loan losses	'		0		0		0
Total consumer [Member] | Home equity [Member] | Chapter 7 bankruptcy [Member]	'		'		'		'
Financing effects of our modifications	'		'		'		'
Count	20		17		79		50
Postmodification recorded investment	1	[1]	1	[1]	3	[1]	2	[1]
Premodification allowance for loan losses	0		0		0		0
Postmodification allowance for loan losses	0		0		0		0
Total consumer [Member] | Home equity [Member] | Rate reduction [Member]	'		'		'		'
Financing effects of our modifications	'		'		'		'
Count	'		1		'		2
Postmodification recorded investment	'		0	[1]	'		0	[1]
Premodification allowance for loan losses	'		0		'		0
Postmodification allowance for loan losses	'		0		'		0
Total consumer [Member] | Indirect auto [Member] | Chapter 7 bankruptcy [Member]	'		'		'		'
Financing effects of our modifications	'		'		'		'
Count	35		27		192		73
Postmodification recorded investment	1	[1]	1	[1]	3	[1]	2	[1]
Premodification allowance for loan losses	0		0		0		0
Postmodification allowance for loan losses	0		0		0		0
Total consumer [Member] | Other consumer [Member] | Extension of term and rate reduction [Member]	'		'		'		'
Financing effects of our modifications	'		'		'		'
Count	'		1		'		1
Postmodification recorded investment	'		0	[1]	'		0	[1]
Premodification allowance for loan losses	'		0		'		0
Postmodification allowance for loan losses	'		0		'		0
Total consumer [Member] | Other consumer [Member] | Chapter 7 bankruptcy [Member]	'		'		'		'
Financing effects of our modifications	'		'		'		'
Count	7		13		33		39
Postmodification recorded investment	0	[1]	0	[1]	0	[1]	0	[1]
Premodification allowance for loan losses	0		0		0		0
Postmodification allowance for loan losses	0		0		0		0
Total consumer [Member] | Other consumer [Member] | Rate reduction [Member]	'		'		'		'
Financing effects of our modifications	'		'		'		'
Count	'		1		'		1
Postmodification recorded investment	'		0	[1]	'		0	[1]
Premodification allowance for loan losses	'		0		'		0
Postmodification allowance for loan losses	'		$0		'		$0
[1]	(1) Postmodification balances approximate premodification balances. The aggregate amount of charge-offs as a result of the restructurings was not significant.

Loans_and_Leases_Information_a

Loans and Leases - Information about Residential Mortgage Banking (Details) (USD $)	Sep. 30, 2014	Sep. 30, 2013
In Millions, unless otherwise specified
Information about residential mortgage loans	'	'
Mortgages serviced for others	$3,796	$3,574
Mortgage servicing asset recorded for loans serviced for others, net	$36	$34

Loans_and_Leases_Details_Textu

Loans and Leases (Details Textual) (USD $)	3 Months Ended			9 Months Ended
	Sep. 30, 2014	Jun. 30, 2014	Mar. 31, 2014	Sep. 30, 2014		Sep. 30, 2013		Dec. 31, 2013
	Contract			acquisition				Contract
	payment			Segment
				Contract
				payment
Accounts, Notes, Loans and Financing Receivable [Line Items]	'	'	'	'		'		'
Number of segments in portfolio	'	'	'	2		'		'
Liability for Unfunded Commitments	$15,000,000	'	'	$15,000,000		'		$13,000,000
Provision for Credit Losses for Unfunded Commitments	'	'	'	1,000,000		1,000,000		'
Home equity portfolio	2,900,000,000	'	'	2,900,000,000		'		2,800,000,000
Portion of Home Equity Portfolio in First Lien Position	1,100,000,000	'	'	1,100,000,000		'		1,000,000,000
Percentage of second lien home equity where first lien held and serviced	10.00%	'	'	10.00%		'		10.00%
Number of acquisitions since January 1, 2009	'	'	'	4		'		'
Other changes in nonaccretable yield	'	'	'	55,000,000	[1]	22,000,000	[1]	'
Carrying value of impaired loans, less related allowance, as percent of principal	75.00%	'	'	75.00%		'		69.00%
Minimum number of payments of restructured loan	6	'	'	6		'		'
Nonaccrual loans not modified in TDR minimum	1,000,000	1,000,000	200,000	'		'		'
Troubled debt restructures acquired loan portfolio count	87	'	'	87		'		40
Troubled debt restructures acquired loan portfolio	4,000,000	'	'	4,000,000		'		1,000,000
Financing Receivable, Modifications, Subsequent Default, Recorded Investment	'	'	'	$2,000,000		$100,000		'
[1]	Includes changes in expected cash flows from changes in interest rate and prepayment assumptions.

Goodwill_Goodwill_Details

Goodwill Goodwill (Details) (USD $)	3 Months Ended		9 Months Ended		12 Months Ended
In Millions, unless otherwise specified	Sep. 30, 2014	Sep. 30, 2013	Sep. 30, 2014	Sep. 30, 2013	Dec. 31, 2013
Goodwill [Roll Forward]	'	'	'	'	'
Goodwill, beginning	'	'	$2,449	$2,484	$2,484
Purchase accounting adjustments	'	'	'	'	-35	[1]
Acquisitions	'	'	1	'	'
Goodwill impairment loss	-1,100	0	-1,100	0	'
Goodwill, ending	1,350	'	1,350	'	2,449
Banking [Member]	'	'	'	'	'
Goodwill [Roll Forward]	'	'	'	'	'
Goodwill, beginning	'	'	2,381	2,416	2,416
Purchase accounting adjustments	'	'	'	'	-35	[1]
Acquisitions	'	'	0	'	'
Goodwill impairment loss	-1,100	'	-1,100	'	'
Goodwill, ending	1,281	'	1,281	'	2,381
Financial Services [Member]	'	'	'	'	'
Goodwill [Roll Forward]	'	'	'	'	'
Goodwill, beginning	'	'	68	68	68
Purchase accounting adjustments	'	'	'	'	0
Acquisitions	'	'	1	'	'
Goodwill impairment loss	0	'	0	'	'
Goodwill, ending	$69	'	$69	'	$68
[1]	Establishment of deferred tax assets in connection with the HSBC Branch Acquisition and our National City Bank branch acquisition.

Derivative_Financial_Instrumen2

Derivative Financial Instruments - Notional Amount and Fair Value of Derivative Instruments (Details) (USD $)	Sep. 30, 2014		Dec. 31, 2013
In Millions, unless otherwise specified
Derivative financial instruments	'		'
Asset Derivatives, Notional Amount	$3,342		$3,114
Asset Derivatives, Fair Value	68	[1]	76	[1]
Liability Derivatives, Notional Amount	3,385		3,107
Liability Derivatives, Fair Value	70	[2]	77	[2]
Interest rate swap [Member] | Designated as Hedging Instrument [Member]	'		'
Derivative financial instruments	'		'
Asset Derivatives, Notional Amount	7		22
Asset Derivatives, Fair Value	0	[1]	0	[1]
Liability Derivatives, Notional Amount	28		13
Liability Derivatives, Fair Value	1	[2]	1	[2]
Interest rate swap [Member] | Not Designated as Hedging Instrument [Member]	'		'
Derivative financial instruments	'		'
Asset Derivatives, Notional Amount	3,336		3,092
Asset Derivatives, Fair Value	68	[1]	76	[1]
Liability Derivatives, Notional Amount	3,357		3,094
Liability Derivatives, Fair Value	$69	[2]	$76	[2]
[1]	Represents gross amounts, included in Other Assets in our Consolidated Statements of Condition.
[2]	Represents gross amounts, included in Other Liabilities in our Consolidated Statements of Condition.

Derivative_Financial_Instrumen3

Derivative Financial Instruments Derivative Financial Instruments - Amount of Gain/Loss Recognized for FInancial Instruments (Details) (Interest rate swap [Member], Cash flow hedging [Member], USD $)	3 Months Ended				9 Months Ended
In Millions, unless otherwise specified	Sep. 30, 2014		Sep. 30, 2013		Sep. 30, 2014		Sep. 30, 2013
Derivative Instruments, Gain (Loss) [Line Items]	'		'		'		'
Amount of gain on derivatives recognized in other comprehensive income, net of tax	$0		$0		$0		$1
Interest expense [Member]	'		'		'		'
Derivative Instruments, Gain (Loss) [Line Items]	'		'		'		'
Amount of (loss) on derivatives reclassified from other comprehensive income to income	$0	[1]	$0	[1]	($1)	[1]	($1)	[1]
[1]	Recognized in interest expense on borrowings in our Consolidated Statements of Operations.

Derivative_Financial_Instrumen4

Derivative Financial Instruments (Details Textual) (USD $)	Sep. 30, 2014	Dec. 31, 2013	Sep. 30, 2013	Dec. 31, 2012	Sep. 30, 2014	Sep. 30, 2013
In Millions, unless otherwise specified					Customer swap [Member]	Customer swap [Member]
Derivative Instruments, Gain (Loss) [Line Items]	'	'	'	'	'	'
Net liability positions with counterparties	$55	$49	'	'	'	'
Gross amounts of recognized liabilities to be offset with asset	69	76	'	'	'	'
Gross amounts of assets offsetting liabilities in the Statement of Condition	14	27	'	'	'	'
Collateral posted for net liability positions	80	43	'	'	'	'
Loss in accumulated other comprehensive income borrowings previously hedged	5	6	6	6	'	'
Derivative revenue	'	'	'	'	$7	$14

Earnings_Per_Share_Details

Earnings Per Share (Details) (USD $)	3 Months Ended		9 Months Ended
In Millions, except Per Share data, unless otherwise specified	Sep. 30, 2014	Sep. 30, 2013	Sep. 30, 2014	Sep. 30, 2013
Computation of basic and diluted earnings per share using two-class method	'	'	'	'
Net (loss) income available to common stockholders	($931)	$72	($813)	$195
Less income allocable to unvested restricted stock awards	0	0	1	1
Net (loss) income allocable to common stockholders	($931)	$71	($813)	$194
Weighted average common shares outstanding:	'	'	'	'
Total shares issued	366	366	366	366
Unallocated employee stock ownership plan shares	-2	-2	-2	-2
Unvested restricted stock awards	-3	-2	-3	-2
Treasury shares	-11	-12	-11	-13
Total basic weighted average common shares outstanding	350	350	350	349
Effect of dilutive stock-based awards	0	1	0	1
Total diluted weighted average common shares outstanding	350	351	350	350
Basic (loss) earnings per common share	($2.66)	$0.20	($2.32)	$0.55
Diluted (loss) earnings per common share	($2.66)	$0.20	($2.32)	$0.55
Anti-dilutive stock-based awards excluded from the diluted weighted average common share calculations	11	11	11	11

Other_Comprehensive_Income_Com

Other Comprehensive Income - Comprehensive Income (Loss) (Details) (USD $)	3 Months Ended				9 Months Ended
In Millions, unless otherwise specified	Sep. 30, 2014		Sep. 30, 2013		Sep. 30, 2014		Sep. 30, 2013
Securities available for sale:	'		'		'		'
Net unrealized holding losses arising during the period, pretax	($51)		($12)		($14)		($156)
Reclassification adjustment for net unrealized holding gains on securities transferred between available for sale and held to maturity, pretax	'		0		'		-55
Net unrealized losses on securities available for sale, pretax	'		-12		'		-211
Net unrealized holding losses arising during the period, tax	-19		-4		-5		-60
Reclassification adjustment for net unrealized holding gains on securities transferred between available for sale and held to maturity, tax	'		0		'		-21
Net unrealized losses on securities available for sale, tax	'		-4		'		-81
Net unrealized holding losses arising during the period, net of tax	-31		-7		-9		-96
Reclassification adjustment for net unrealized holding gains on securities transferred between available for sale and held to maturity, net of tax	0		0		0		-34
Net unrealized losses on securities available for sale, net of tax	-31		-7		-9		-130
Net unrealized holding gains on securities transferred between available for sale and held to maturity:	'		'		'		'
Net unrealized holding gains transferred during the period, pretax	'		0		'		55
Amortization of net unrealized holding gains to income during the period, pre-tax	-3		-6		-10		-16
Net unrealized holding (losses) gains on securities transferred during the period, pre-tax	'		-6		'		39
Net unrealized holding gains transferred during the period, tax	'		0		'		21
Amortization of net unrealized holding gains to income during the period, tax	-1		-2		-4		-6
Net unrealized holding (losses) gains on securities transferred during the period, tax	'		-2		'		15
Net unrealized holding gains transferred during the period, net of tax	0		0		0		34
Amortization of net unrealized holding gains to income during the period, net of tax	-2	[1]	-4	[1]	-6	[1]	-10	[1]
Net unrealized holding (losses) gains on securities transferred during the period	-2		-4		-6		24
Reclassification adjustment for realized losses on interest rate swaps designated as cash flow hedges included in net income, before tax	0	[2]	0	[2]	1	[2]	1	[2]
Reclassification adjustment for realized losses on interest rate swaps designated as cash flow hedges included in net income, tax	0	[2]	0	[2]	0	[2]	0	[2]
Reclassification adjustment for realized losses on interest rate swaps designated as cash flow hedges included in net income, net of tax	0	[2]	0	[2]	0	[2]	1	[2]
Amortization of net loss related to pension and post-retirement plans, before tax	0		'		1		'
Amortization of net loss related to pension and post-retirement plans, tax	0		'		0		'
Amortization of net loss related to pension and post-retirement plans, net of tax	0		0		1		0
Total other comprehensive loss, pretax	-54		-18		-23		-171
Total other comprehensive loss, tax	-20		-7		-9		-65
Total other comprehensive loss	($33)		($11)		($14)		($105)
[1]	Included in Interest income on investment securities and other in our Consolidated Statement of Operations.
[2]	Included in Interest expense on borrowings in our Consolidated Statement of Operations.

Other_Comprehensive_Income_Cha

Other Comprehensive Income - Change in Accumulated Other Comprehensive Income (Loss) (Details) (USD $)	3 Months Ended		9 Months Ended
In Millions, unless otherwise specified	Sep. 30, 2014	Sep. 30, 2013	Sep. 30, 2014	Sep. 30, 2013
Accumulated other comprehensive income	'	'	'	'
Net unrealized gains on securities available for sale, beginning balance	'	'	$64	$207
Net unrealized gains (losses) on securities transferred from available for sale and held to maturity, beginning balance	'	'	20	-2
Unrealized loss on interest rate swaps designated as cash flow hedges, beginning balance	'	'	-6	-6
Pension and postretirement plans, beginning balance	'	'	-16	-41
Accumulated other comprehensive income (loss), net	'	'	62	157
Net unrealized gains on securities available for sale, period change, net of tax	-31	-7	-9	-130
Net unrealized (losses) gains on securities transferred from available for sale and held to maturity, period change, net of tax	-2	-4	-6	24
Net unrealized gains on interest rate swaps designated as cash flow hedges, net of tax	0	0	0	1
Pension and post-retirement plans, period change, net of tax	'	'	1	0
Accumulated other comprehensive (loss) income, period change, net of tax	-33	-11	-14	-105
Net unrealized gains on securities available for sale, ending balance	55	77	55	77
Net unrealized gains (losses) on securities transferred from available for sale and held to maturity, ending balance	14	22	14	22
Unrealized loss on interest rate swaps designated as cash flow hedges, ending balance	-5	-6	-5	-6
Pension and postretirement plans, ending balance	-16	-41	-16	-41
Accumulated other comprehensive income, total, ending balance	48	52	48	52
Pre-tax net loss on cash flow hedges from accumulated other comprehensive income to earnings	'	'	$1	'

Fair_Value_Measurements_Fair_V

Fair Value Measurements - Fair Value, Option, Loans Held for Sale (Details) (USD $)	Sep. 30, 2014	Dec. 31, 2013
In Millions, unless otherwise specified
Loans held for sale	'	'
Fair value carrying amount	$30	$50
Aggregate unpaid principal balance	29	49
Fair value carrying amount less aggregate unpaid principal balance	$1	$1

Fair_Value_Measurements_Fair_V1

Fair Value Measurements - Fair Value, Assets and Liabilities Measured on Recurring Basis (Details) (USD $)	Sep. 30, 2014		Dec. 31, 2013
In Millions, unless otherwise specified
Assets:	'		'
Investment securities available for sale	$6,198		$7,423
Loans held for sale	30		50
Debt securities [Member]	'		'
Assets:	'		'
Investment securities available for sale	1,493		1,734
Residential mortgage-backed securities [Member]	'		'
Assets:	'		'
Investment securities available for sale	1,338		1,490
Collateralized mortgage obligations [Member]	'		'
Assets:	'		'
Investment securities available for sale	1,062		1,152
Commercial mortgage-backed securities, non-agency issued [Member]	'		'
Assets:	'		'
Investment securities available for sale	1,608		1,831
Mortgage Backed Securities [Member]	'		'
Assets:	'		'
Investment securities available for sale	2,946		3,321
Collateralized loan obligations, non-agency issued [Member]	'		'
Assets:	'		'
Investment securities available for sale	1,050		1,431
States and political subdivisions [Member] | Debt securities [Member]	'		'
Assets:	'		'
Investment securities available for sale	489		529
U.S. Treasury [Member] | Debt securities [Member]	'		'
Assets:	'		'
Investment securities available for sale	20		20
U.S. government sponsored enterprises [Member] | Debt securities [Member]	'		'
Assets:	'		'
Investment securities available for sale	155		312
Corporate [Member] | Debt securities [Member]	'		'
Assets:	'		'
Investment securities available for sale	829		872
Government National Mortgage Association [Member] | Residential mortgage-backed securities [Member]	'		'
Assets:	'		'
Investment securities available for sale	36		40
Federal National Mortgage Association [Member] | Residential mortgage-backed securities [Member]	'		'
Assets:	'		'
Investment securities available for sale	112		139
Federal National Mortgage Association [Member] | Collateralized mortgage obligations [Member]	'		'
Assets:	'		'
Investment securities available for sale	707		761
Federal Home Loan Mortgage Corporation [Member] | Residential mortgage-backed securities [Member]	'		'
Assets:	'		'
Investment securities available for sale	128		159
Federal Home Loan Mortgage Corporation [Member] | Collateralized mortgage obligations [Member]	'		'
Assets:	'		'
Investment securities available for sale	356		379
Non-agency issued [Member] | Collateralized mortgage obligations [Member]	'		'
Assets:	'		'
Investment securities available for sale	'		13
Fair Value, Measurements, Recurring [Member]	'		'
Assets:	'		'
Investment securities available for sale	6,198		7,423
Loans held for sale	30	[1]	50	[1]
Derivatives	54		49
Total assets	6,282		7,522
Liabilities:	'		'
Derivatives	56		50
Fair Value, Measurements, Recurring [Member] | Debt securities [Member]	'		'
Assets:	'		'
Investment securities available for sale	1,493		1,734
Fair Value, Measurements, Recurring [Member] | Residential mortgage-backed securities [Member]	'		'
Assets:	'		'
Investment securities available for sale	1,338		1,490
Fair Value, Measurements, Recurring [Member] | Collateralized mortgage obligations [Member]	'		'
Assets:	'		'
Investment securities available for sale	1,062		1,152
Fair Value, Measurements, Recurring [Member] | Mortgage Backed Securities [Member]	'		'
Assets:	'		'
Investment securities available for sale	2,946		3,321
Fair Value, Measurements, Recurring [Member] | Collateralized loan obligations, non-agency issued [Member]	'		'
Assets:	'		'
Investment securities available for sale	1,050		1,431
Fair Value, Measurements, Recurring [Member] | States and political subdivisions [Member] | Debt securities [Member]	'		'
Assets:	'		'
Investment securities available for sale	489		529
Fair Value, Measurements, Recurring [Member] | U.S. Treasury [Member] | Debt securities [Member]	'		'
Assets:	'		'
Investment securities available for sale	20		20
Fair Value, Measurements, Recurring [Member] | U.S. government sponsored enterprises [Member] | Debt securities [Member]	'		'
Assets:	'		'
Investment securities available for sale	155		312
Fair Value, Measurements, Recurring [Member] | Corporate [Member] | Debt securities [Member]	'		'
Assets:	'		'
Investment securities available for sale	829		872
Fair Value, Measurements, Recurring [Member] | Government National Mortgage Association [Member] | Residential mortgage-backed securities [Member]	'		'
Assets:	'		'
Investment securities available for sale	36		40
Fair Value, Measurements, Recurring [Member] | Federal National Mortgage Association [Member] | Residential mortgage-backed securities [Member]	'		'
Assets:	'		'
Investment securities available for sale	112		139
Fair Value, Measurements, Recurring [Member] | Federal National Mortgage Association [Member] | Collateralized mortgage obligations [Member]	'		'
Assets:	'		'
Investment securities available for sale	707		761
Fair Value, Measurements, Recurring [Member] | Federal Home Loan Mortgage Corporation [Member] | Residential mortgage-backed securities [Member]	'		'
Assets:	'		'
Investment securities available for sale	128		159
Fair Value, Measurements, Recurring [Member] | Federal Home Loan Mortgage Corporation [Member] | Collateralized mortgage obligations [Member]	'		'
Assets:	'		'
Investment securities available for sale	356		379
Fair Value, Measurements, Recurring [Member] | Collateralized mortgage obliations, non-agency issued [Member] | Collateralized mortgage obligations [Member]	'		'
Assets:	'		'
Investment securities available for sale	'		13
Fair Value, Measurements, Recurring [Member] | Non-agency issued [Member] | Commercial mortgage-backed securities, non-agency issued [Member]	'		'
Assets:	'		'
Investment securities available for sale	1,608		1,831
Fair Value, Measurements, Recurring [Member] | Asset-backed securities [Member]	'		'
Assets:	'		'
Investment securities available for sale	687		905
Fair Value, Measurements, Recurring [Member] | Asset-backed securities [Member] | Student Loans [Member]	'		'
Assets:	'		'
Investment securities available for sale	265		312
Fair Value, Measurements, Recurring [Member] | Asset-backed securities [Member] | Credit cards [Member]	'		'
Assets:	'		'
Investment securities available for sale	62		73
Fair Value, Measurements, Recurring [Member] | Asset-backed securities [Member] | Auto Loans [Member]	'		'
Assets:	'		'
Investment securities available for sale	231		335
Fair Value, Measurements, Recurring [Member] | Asset-backed securities [Member] | Other Loans [Member]	'		'
Assets:	'		'
Investment securities available for sale	128		186
Fair Value, Measurements, Recurring [Member] | Other securities [Member]	'		'
Assets:	'		'
Investment securities available for sale	22		33
Fair Value, Measurements, Recurring [Member] | Level 1 [Member]	'		'
Assets:	'		'
Investment securities available for sale	42		43
Total assets	42		43
Fair Value, Measurements, Recurring [Member] | Level 1 [Member] | Debt securities [Member]	'		'
Assets:	'		'
Investment securities available for sale	20		20
Fair Value, Measurements, Recurring [Member] | Level 1 [Member] | U.S. Treasury [Member] | Debt securities [Member]	'		'
Assets:	'		'
Investment securities available for sale	20		20
Fair Value, Measurements, Recurring [Member] | Level 1 [Member] | Other securities [Member]	'		'
Assets:	'		'
Investment securities available for sale	21		22
Fair Value, Measurements, Recurring [Member] | Level 2 [Member]	'		'
Assets:	'		'
Investment securities available for sale	6,152		7,376
Loans held for sale	30	[1]	50	[1]
Derivatives	54		49
Total assets	6,236		7,476
Liabilities:	'		'
Derivatives	56		50
Fair Value, Measurements, Recurring [Member] | Level 2 [Member] | Debt securities [Member]	'		'
Assets:	'		'
Investment securities available for sale	1,469		1,709
Fair Value, Measurements, Recurring [Member] | Level 2 [Member] | Residential mortgage-backed securities [Member]	'		'
Assets:	'		'
Investment securities available for sale	1,338		1,490
Fair Value, Measurements, Recurring [Member] | Level 2 [Member] | Collateralized mortgage obligations [Member]	'		'
Assets:	'		'
Investment securities available for sale	1,062		1,152
Fair Value, Measurements, Recurring [Member] | Level 2 [Member] | Mortgage Backed Securities [Member]	'		'
Assets:	'		'
Investment securities available for sale	2,946		3,321
Fair Value, Measurements, Recurring [Member] | Level 2 [Member] | Collateralized loan obligations, non-agency issued [Member]	'		'
Assets:	'		'
Investment securities available for sale	1,050		1,431
Fair Value, Measurements, Recurring [Member] | Level 2 [Member] | States and political subdivisions [Member] | Debt securities [Member]	'		'
Assets:	'		'
Investment securities available for sale	489		529
Fair Value, Measurements, Recurring [Member] | Level 2 [Member] | U.S. government sponsored enterprises [Member] | Debt securities [Member]	'		'
Assets:	'		'
Investment securities available for sale	155		312
Fair Value, Measurements, Recurring [Member] | Level 2 [Member] | Corporate [Member] | Debt securities [Member]	'		'
Assets:	'		'
Investment securities available for sale	824		868
Fair Value, Measurements, Recurring [Member] | Level 2 [Member] | Government National Mortgage Association [Member] | Residential mortgage-backed securities [Member]	'		'
Assets:	'		'
Investment securities available for sale	36		40
Fair Value, Measurements, Recurring [Member] | Level 2 [Member] | Federal National Mortgage Association [Member] | Residential mortgage-backed securities [Member]	'		'
Assets:	'		'
Investment securities available for sale	112		139
Fair Value, Measurements, Recurring [Member] | Level 2 [Member] | Federal National Mortgage Association [Member] | Collateralized mortgage obligations [Member]	'		'
Assets:	'		'
Investment securities available for sale	707		761
Fair Value, Measurements, Recurring [Member] | Level 2 [Member] | Federal Home Loan Mortgage Corporation [Member] | Residential mortgage-backed securities [Member]	'		'
Assets:	'		'
Investment securities available for sale	128		159
Fair Value, Measurements, Recurring [Member] | Level 2 [Member] | Federal Home Loan Mortgage Corporation [Member] | Collateralized mortgage obligations [Member]	'		'
Assets:	'		'
Investment securities available for sale	356		379
Fair Value, Measurements, Recurring [Member] | Level 2 [Member] | Collateralized mortgage obliations, non-agency issued [Member] | Collateralized mortgage obligations [Member]	'		'
Assets:	'		'
Investment securities available for sale	'		13
Fair Value, Measurements, Recurring [Member] | Level 2 [Member] | Non-agency issued [Member] | Commercial mortgage-backed securities, non-agency issued [Member]	'		'
Assets:	'		'
Investment securities available for sale	1,608		1,831
Fair Value, Measurements, Recurring [Member] | Level 2 [Member] | Asset-backed securities [Member]	'		'
Assets:	'		'
Investment securities available for sale	687		905
Fair Value, Measurements, Recurring [Member] | Level 2 [Member] | Asset-backed securities [Member] | Student Loans [Member]	'		'
Assets:	'		'
Investment securities available for sale	265		312
Fair Value, Measurements, Recurring [Member] | Level 2 [Member] | Asset-backed securities [Member] | Credit cards [Member]	'		'
Assets:	'		'
Investment securities available for sale	62		73
Fair Value, Measurements, Recurring [Member] | Level 2 [Member] | Asset-backed securities [Member] | Auto Loans [Member]	'		'
Assets:	'		'
Investment securities available for sale	231		335
Fair Value, Measurements, Recurring [Member] | Level 2 [Member] | Asset-backed securities [Member] | Other Loans [Member]	'		'
Assets:	'		'
Investment securities available for sale	128		186
Fair Value, Measurements, Recurring [Member] | Level 2 [Member] | Other securities [Member]	'		'
Assets:	'		'
Investment securities available for sale	1		10
Fair Value, Measurements, Recurring [Member] | Level 3 [Member]	'		'
Assets:	'		'
Investment securities available for sale	4		4
Total assets	4		4
Fair Value, Measurements, Recurring [Member] | Level 3 [Member] | Debt securities [Member]	'		'
Assets:	'		'
Investment securities available for sale	4		4
Fair Value, Measurements, Recurring [Member] | Level 3 [Member] | Collateralized loan obligations, non-agency issued [Member]	'		'
Assets:	'		'
Investment securities available for sale	'		0
Fair Value, Measurements, Recurring [Member] | Level 3 [Member] | Corporate [Member] | Debt securities [Member]	'		'
Assets:	'		'
Investment securities available for sale	$4		$4
[1]	Represents loans for which we have elected the fair value option.

Fair_Value_Measurements_Fair_V2

Fair Value Measurements - Fair Value, Assets and Liabilities Measured on Nonrecurring Basis (Details) (Fair Value, Measurements, Nonrecurring [Member], USD $)	Sep. 30, 2014	Sep. 30, 2013	Sep. 30, 2014	Sep. 30, 2013	Sep. 30, 2014	Dec. 31, 2013	Sep. 30, 2013	Sep. 30, 2014	Sep. 30, 2013	Sep. 30, 2014	Sep. 30, 2013
In Millions, unless otherwise specified			Level 1 [Member]	Level 1 [Member]	Level 2 [Member]	Level 2 [Member]	Level 2 [Member]	Level 3 [Member]	Level 3 [Member]	Collateral Dependent Impaired Loans [Member]	Collateral Dependent Impaired Loans [Member]
Summary of assets and liabilities measured at fair value on a nonrecurring basis	'	'	'	'	'	'	'	'	'	'	'
Collateral dependent impaired loans	$11	$24	$0	$0	$10	$20	$14	$1	$10	'	'
Total gains (losses)	'	'	'	'	'	'	'	'	'	$0	$0

Fair_Value_Measurements_Change

Fair Value Measurements - Change in Level 3 Assets Measured on Recurring Basis (Details) (USD $)	9 Months Ended
In Millions, unless otherwise specified	Sep. 30, 2014	Sep. 30, 2013
Changes in Level 3 assets and liabilities measurerd at estimated fair value on a recurring basis [Roll Forward]	'	'
Balance at beginning of period	'	$1,559
Purchases	'	73
Settlements	'	-168
Gains included in other comprehensive income	'	8
Losses included in earnings	'	-1
Balance at end of period	'	1,471
Trust preferred securities [Member]	'	'
Changes in Level 3 assets and liabilities measurerd at estimated fair value on a recurring basis [Roll Forward]	'	'
Balance at beginning of period	4	14
Purchases	0	0
Settlements	0	-9
Gains included in other comprehensive income	0	1
Losses included in earnings	0	-1
Balance at end of period	4	5
Collateralized loan obligations [Member]	'	'
Changes in Level 3 assets and liabilities measurerd at estimated fair value on a recurring basis [Roll Forward]	'	'
Balance at beginning of period	'	1,545
Purchases	'	73
Settlements	'	-159
Gains included in other comprehensive income	'	7
Losses included in earnings	'	0
Balance at end of period	'	$1,466

Fair_Value_Measurements_Fair_V3

Fair Value Measurements - Fair Value of Financial Instruments by Balance Sheet Grouping (Details) (USD $)	Sep. 30, 2014		Dec. 31, 2013		Sep. 30, 2013	Dec. 31, 2012
In Millions, unless otherwise specified
Financial assets:	'		'		'	'
Cash and cash equivalents	$451		$463		$558	$431
Investment securities available for sale	6,198		7,423		'	'
Investment securities held to maturity	5,352		4,042		'	'
Investment securities held to maturity	5,323		3,988		'	'
Federal Home Loan Bank and Federal Reserve Bank common stock	390		469		'	'
Loans held for sale	31		50		'	'
Asset Derivatives, Fair Value	68	[1]	76	[1]	'	'
Financial liabilities:	'		'		'	'
Deposits	27,670		26,665		'	'
Liability Derivatives, Fair Value	70	[2]	77	[2]	'	'
Carrying (Reported) Amount, Fair Value Disclosure [Member] | Level 1 [Member]	'		'		'	'
Financial assets:	'		'		'	'
Cash and cash equivalents	451		463		'	'
Carrying (Reported) Amount, Fair Value Disclosure [Member] | Fair value inputs level 1, 2, 3 [Member]	'		'		'	'
Financial assets:	'		'		'	'
Investment securities available for sale	6,198	[3]	7,423	[3]	'	'
Carrying (Reported) Amount, Fair Value Disclosure [Member] | Level 2 [Member]	'		'		'	'
Financial assets:	'		'		'	'
Investment securities held to maturity	5,352		4,042		'	'
Federal Home Loan Bank and Federal Reserve Bank common stock	390		469		'	'
Loans held for sale	31		50		'	'
Derivatives	54		49		'	'
Accrued interest receivable	106		103		'	'
Financial liabilities:	'		'		'	'
Deposits	27,670		26,665		'	'
Borrowings	5,662		5,556		'	'
Derivatives	56		50		'	'
Accrued interest payable	12		10		'	'
Carrying (Reported) Amount, Fair Value Disclosure [Member] | Fair value inputs level 2, 3 [Member]	'		'		'	'
Financial assets:	'		'		'	'
Loans and leases, net	22,538	[4]	21,230	[4]	'	'
Estimate of Fair Value, Fair Value Disclosure [Member] | Level 1 [Member]	'		'		'	'
Financial assets:	'		'		'	'
Cash and cash equivalents, fair value	451		463		'	'
Estimate of Fair Value, Fair Value Disclosure [Member] | Fair value inputs level 1, 2, 3 [Member]	'		'		'	'
Financial assets:	'		'		'	'
Investment securities available for sale	6,198	[3]	7,423	[3]	'	'
Estimate of Fair Value, Fair Value Disclosure [Member] | Level 2 [Member]	'		'		'	'
Financial assets:	'		'		'	'
Investment securities held to maturity	5,323		3,988		'	'
Federal Home Loan Bank and Federal Reserve Bank common stock	390		469		'	'
Loans held for sale	31		50		'	'
Asset Derivatives, Fair Value	54		49		'	'
Accrued interest receivable	106		103		'	'
Financial liabilities:	'		'		'	'
Deposits	27,683		26,695		'	'
Borrowings	5,710		5,599		'	'
Liability Derivatives, Fair Value	56		50		'	'
Accrued interest payable	12		10		'	'
Estimate of Fair Value, Fair Value Disclosure [Member] | Fair value inputs level 2, 3 [Member]	'		'		'	'
Financial assets:	'		'		'	'
Loans and leases, net	$22,807	[4]	$21,774	[4]	'	'
[1]	Represents gross amounts, included in Other Assets in our Consolidated Statements of Condition.
[2]	Represents gross amounts, included in Other Liabilities in our Consolidated Statements of Condition.
[3]	For a detailed breakout of our investment securities available for sale, refer to our table of recurring fair value measurements.
[4]	Loans and leases classified as level 2 are made up of $10 million and $20 million of collateral dependent impaired loans without significant adjustments made to appraised values at September 30, 2014 and December 31, 2013, respectively. All other loans and leases are classified as level 3.

Fair_Value_Measurements_Detail

Fair Value Measurements (Details Textual) (USD $)	9 Months Ended			9 Months Ended
	Sep. 30, 2014	Sep. 30, 2014	Sep. 30, 2013	Sep. 30, 2014	Sep. 30, 2013	Sep. 30, 2014	Dec. 31, 2013	Sep. 30, 2013
		Fair Value, Measurements, Nonrecurring [Member]	Fair Value, Measurements, Nonrecurring [Member]	Fair Value, Measurements, Nonrecurring [Member]	Fair Value, Measurements, Nonrecurring [Member]	Fair Value, Inputs, Level 2 [Member]	Fair Value, Inputs, Level 2 [Member]	Fair Value, Inputs, Level 2 [Member]
				Collateral Dependent Impaired Loans [Member]	Collateral Dependent Impaired Loans [Member]	Fair Value, Measurements, Nonrecurring [Member]	Fair Value, Measurements, Nonrecurring [Member]	Fair Value, Measurements, Nonrecurring [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'	'	'	'	'	'	'
Investment securities price at broker quotes	$0	'	'	'	'	'	'	'
Loans held for sale, nonaccrual or 90 or more days past due	0	'	'	'	'	'	'	'
Maximum days for completion of appraisals or evaluations for assets	'90 days	'	'	'	'	'	'	'
Net increase in allowance for credit losses	'	'	'	300,000	400,000	'	'	'
Collateral dependent impaired loans fair value disclosure	'	$11,000,000	$24,000,000	'	'	$10,000,000	$20,000,000	$14,000,000
Original maturity period for cash and cash equivalents (3 months or less)	'3 months	'	'	'	'	'	'	'

Segment_Information_Details

Segment Information (Details) (USD $)	3 Months Ended		9 Months Ended
In Millions, unless otherwise specified	Sep. 30, 2014	Sep. 30, 2013	Sep. 30, 2014	Sep. 30, 2013
			Segment
Segment Reporting Information [Line Items]	'	'	'	'
Number of Reportable Segments	'	'	2	'
Financial information of business segments	'	'	'	'
Net interest income	$273	$278	$816	$813
Provision for credit losses	21	28	69	73
Net interest income after provision for credit losses	252	250	747	740
Noninterest income	75	91	233	276
Amortization of intangibles	7	8	21	33
Goodwill impairment	1,100	0	1,100	0
Other noninterest expense	290	223	769	671
Income before income taxes and undisbursed income of subsidiary	-1,069	110	-910	312
Income tax benefit	-146	31	-120	95
Net (loss) income	-923	79	-790	218
Banking [Member]	'	'	'	'
Financial information of business segments	'	'	'	'
Net interest income	273	278	816	813
Provision for credit losses	21	28	69	73
Net interest income after provision for credit losses	252	250	747	740
Noninterest income	57	74	182	224
Amortization of intangibles	6	7	19	30
Goodwill impairment	1,100	'	1,100	'
Other noninterest expense	276	210	726	632
Income before income taxes and undisbursed income of subsidiary	-1,073	106	-916	302
Income tax benefit	-147	30	-122	91
Net (loss) income	-925	77	-794	211
Financial services [Member]	'	'	'	'
Financial information of business segments	'	'	'	'
Net interest income	0	0	0	0
Provision for credit losses	0	0	0	0
Net interest income after provision for credit losses	0	0	0	0
Noninterest income	18	18	51	52
Amortization of intangibles	1	1	2	3
Goodwill impairment	0	'	0	'
Other noninterest expense	14	13	43	39
Income before income taxes and undisbursed income of subsidiary	3	4	6	10
Income tax benefit	1	1	2	4
Net (loss) income	$2	$2	$4	$6

Condensed_Parent_Company_Only_2

Condensed Parent Company Only Financial Statements Condensed Parent Company Only Balance Sheet (Details) (USD $)	Sep. 30, 2014	Dec. 31, 2013	Sep. 30, 2013	Dec. 31, 2012
In Millions, unless otherwise specified
ASSETS	'	'	'	'
Cash and cash equivalents	$451	$463	$558	$431
Investment securities available for sale	6,198	7,423	'	'
Other assets	759	574	'	'
Total assets	37,966	37,628	'	'
LIABILITIES AND STOCKHOLDERS’ EQUITY	'	'	'	'
Stockholders' equity	4,090	4,993	4,938	4,927
Total liabilities and stockholders’ equity	37,966	37,628	'	'
Parent Company [Member]	'	'	'	'
ASSETS	'	'	'	'
Cash and cash equivalents	382	390	381	415
Investment securities available for sale	1	3	'	'
Loan receivable from ESOP	21	21	'	'
Investment in subsidiary	4,361	5,255	'	'
Deferred taxes	31	34	'	'
Other assets	16	13	'	'
Total assets	4,812	5,715	'	'
LIABILITIES AND STOCKHOLDERS’ EQUITY	'	'	'	'
Accounts payable and other liabilities	12	13	'	'
Borrowings	710	709	'	'
Stockholders' equity	4,090	4,993	'	'
Total liabilities and stockholders’ equity	$4,812	$5,715	'	'

Condensed_Parent_Company_Only_3

Condensed Parent Company Only Financial Statements Condensed Parent Company Only Income Statement (Details) (USD $)	3 Months Ended				9 Months Ended
In Millions, unless otherwise specified	Sep. 30, 2014		Sep. 30, 2013		Sep. 30, 2014		Sep. 30, 2013
Condensed Statements of Operations	'		'		'		'
Total interest and dividend income	$304		$307		$906		$900
Interest expense	31		29		90		87
Net interest income	273		278		816		813
Noninterest income	75		91		233		276
Noninterest expense	1,397		231		1,890		704
Income before income taxes and undisbursed income of subsidiary	-1,069		110		-910		312
Income tax benefit	-146		31		-120		95
Net (loss) income	-923		79		-790		218
Preferred stock dividend	8		8		23		23
Net (loss) income available to common stockholders	-931		72		-813		195
Other comprehensive loss(1)	-33		-11		-14		-105
Total comprehensive (loss) income	-956		68		-804		112
Parent Company [Member]	'		'		'		'
Condensed Statements of Operations	'		'		'		'
Interest income	0		0		1		1
Dividends received from subsidiary	0		50		80		125
Total interest and dividend income	0		50		81		126
Interest expense	12		12		36		36
Net interest income	-12		38		45		90
Noninterest income	0		0		3		1
Noninterest expense	7		6		22		23
Income before income taxes and undisbursed income of subsidiary	-19		32		25		68
Income tax benefit	-8		-6		-21		-22
Income before undisbursed income of subsidiary	-10		39		47		91
Undisbursed (loss) income of subsidiary	-913		41		-836		127
Net (loss) income	-923		79		-790		218
Preferred stock dividend	8		8		23		23
Net (loss) income available to common stockholders	-931		72		-813		195
Other comprehensive loss(1)	-33	[1]	-11	[1]	-14	[1]	-105	[1]
Total comprehensive (loss) income	($956)		$68		($804)		$112
[1]	See Consolidated Statements of Comprehensive (Loss) Income for other comprehensive loss detail.

Condensed_Parent_Company_Only_4

Condensed Parent Company Only Financial Statements Condensed Parent Company Only Statement of Cash Flows (Details) (USD $)	9 Months Ended
In Millions, unless otherwise specified	Sep. 30, 2014	Sep. 30, 2013
Cash flows from operating activities:	'	'
Net (loss) income	($790)	$218
Adjustments to reconcile net (loss) income to net cash provided by operating activities:	'	'
Deferred income tax expense (benefit)	-156	-3
Net cash provided by operating activities	458	600
Cash flows from investing activities:	'	'
Principal payments received on securities available for sale	789	1,006
Purchases of securities available for sale	-77	-1,461
Proceeds from sales of securities available for sale	165	478
Other, net	59	19
Net cash used in investing activities	-1,474	-849
Cash flows from financing activities:	'	'
Dividends paid on preferred stock	-23	-23
Dividends paid on common stock	-85	-84
Net cash provided by financing activities	1,005	376
Net (decrease) increase in cash and cash equivalents	-12	127
Cash and cash equivalents at beginning of period	463	431
Cash and cash equivalents at end of period	451	558
Parent Company [Member]	'	'
Cash flows from operating activities:	'	'
Net (loss) income	-790	218
Adjustments to reconcile net (loss) income to net cash provided by operating activities:	'	'
Undisbursed loss (income) of subsidiaries	836	-127
Stock-based compensation expense	9	7
Deferred income tax expense (benefit)	2	-17
Decrease in other assets	-5	3
Decrease in other liabilities	-1	-9
Net cash provided by operating activities	51	75
Cash flows from investing activities:	'	'
Principal payments received on securities available for sale	0	1
Purchases of securities available for sale	0	-2
Proceeds from sales of securities available for sale	2	0
Other, net	1	0
Net cash used in investing activities	3	-1
Cash flows from financing activities:	'	'
Return of capital from subsidiary	45	0
Dividends paid on preferred stock	-23	-23
Dividends paid on common stock	-85	-84
Net cash provided by financing activities	-62	-107
Net (decrease) increase in cash and cash equivalents	-8	-34
Cash and cash equivalents at beginning of period	390	415
Cash and cash equivalents at end of period	$382	$381