Flagstar Bancorp (FBC) 10-Q 8 May 15 2015 Q1 Quarterly report Financial data

Document_and_Entity_Informatio

Document and Entity Information	3 Months Ended
	Mar. 31, 2015	6-May-15
Document and Entity Information [Abstract]
Entity Registrant Name	FLAGSTAR BANCORP INC
Entity Central Index Key	1033012
Document Type	10-Q
Document Period End Date	31-Mar-15
Amendment Flag	FALSE
Document Fiscal Year Focus	2015
Document Fiscal Period Focus	Q1
Current Fiscal Year End Date	-19
Entity Filer Category	Accelerated Filer
Entity Common Stock, Shares Outstanding		56,436,026

Consolidated_Statements_of_Fin

Consolidated Statements of Financial Condition (Unaudited) (USD $)	Mar. 31, 2015	Dec. 31, 2014
In Millions, unless otherwise specified
Cash and cash equivalents
Cash	$43	$47
Interest-earning deposits	198	89
Total cash and cash equivalents	241.4	136
Investment securities	2,295	1,672
Loans held-for-sale ($2,044 and $1,196 measured at fair value, respectively)	2,097	1,244
Loans with government guarantees	704	1,128
Loans held-for-investment, net
Loans held-for-investment ($189 and $211 measured at fair value, respectively)	4,631	4,448
Less: allowance for loan losses	-253	-297
Total loans held-for-investment, net	4,378	4,151
Mortgage servicing rights	279	258
Federal Home Loan Bank stock	155	155
Premises and equipment, net	241	238
Net deferred tax asset	416	442
Other assets	765	416
Total assets	11,571	9,840
Deposits
Noninterest bearing	1,468	1,209
Interest bearing	6,081	5,860
Total deposits	7,549	7,069
Federal Home Loan Bank advances (includes both short-term and long-term)	1,625	514
Long-term debt ($70 and $84 measured at fair value, respectively)	317	331
Representation and warranty reserve	53	53
Other liabilities ($82 and $82 measured at fair value, respectively)	607	500
Total liabilities	10,151	8,467
Stockholders’ Equity
Preferred stock $0.01 par value, liquidation value $1,000 per share, 25,000,000 shares authorized; 266,657 issued and outstanding, respectively	267	267
Common stock $0.01 par value, 70,000,000 shares authorized; 56,436,026 and 56,332,307 shares issued and outstanding, respectively	1	1
Additional paid in capital	1,483	1,482
Accumulated other comprehensive income	23	8
Accumulated deficit	-354	-385
Total stockholders’ equity	1,420	1,373
Total liabilities and stockholders’ equity	$11,571	$9,840

Consolidated_Statements_of_Fin1

Consolidated Statements of Financial Condition (Parenthetical) (Unaudited) (USD $)	Mar. 31, 2015	Dec. 31, 2014
In Millions, except Share data, unless otherwise specified
Assets
Loans held-for-sale, fair value	$2,044	$1,196
Loans held-for-investment, fair value	189	211
Liabilities and Stockholders’ Equity
Long-term debt, fair value	70	84
Other liabilities, fair value	$82	$82
Stockholders' Equity
Preferred stock, par value (in usd per share)	$0.01	$0.01
Preferred stock, liquidation value per share (in usd per share)	$1,000	$1,000
Preferred stock, shares authorized	25,000,000	25,000,000
Preferred stock, shares issued	266,657	266,657
Preferred stock, shares outstanding	266,657	266,657
Common stock, par value (in usd per share)	$0.01	$0.01
Common stock, shares authorized	70,000,000	70,000,000
Common stock, shares issued	56,436,026	56,332,307
Common stock, shares outstanding	56,436,026	56,332,307

Consolidated_Statements_of_Ope

Consolidated Statements of Operations (Unaudited) (USD $)	3 Months Ended
In Millions, except Share data, unless otherwise specified	Mar. 31, 2015	Mar. 31, 2014
Interest Income
Loans	$65.50	$58.70
Investment securities available-for-sale	13.6	7.5
Interest-earning deposits and other	0.2	0.2
Total interest income	79.3	66.4
Interest Expense
Deposits	9.3	6
Federal Home Loan Bank advances	3.1	0.5
Other	2	1.7
Total interest expense	14.4	8.2
Net interest income	64.9	58.2
(Benefit) provision for loan losses	-3.5	112.3
Net interest income (loss) after provision for loan losses	68.4	-54.1
Noninterest Income
Net gain on loan sales	91.3	45.3
Loan fees and charges	17	12.3
Deposit fees and charges	6.1	4.8
Loan administration income	4.3	7
Net (loss) return on mortgage servicing asset	-2.4	16.1
Net (loss) gain on sale of assets	-0.4	2.2
Representation and warranty benefit	-1.5	-1.7
Other noninterest income (loss)	0.9	-14.4
Total noninterest income	118.3	75
Noninterest Expense
Compensation and benefits	60.8	65.6
Commissions	10.4	7.2
Occupancy and equipment	19.9	20.4
Asset resolution	7.8	11.5
Federal insurance premiums	5.5	5
Loan processing expense	11.7	7.7
Legal and professional expense	9	11.3
Other noninterest expense	11.9	10.6
Total noninterest expense	137	139.3
Income (loss) before federal income taxes	49.7	-118.4
Provision (benefit) for income taxes	18.2	-40
Net income (loss)	31.5	-78.4
Preferred stock accretion	0	-0.5
Net income (loss) applicable to common stock	$31.50	($78.90)
Income (loss) per share
Basic (in dollars per share)	$0.43	($1.51)
Diluted (in dollars per share)	$0.43	($1.51)
Weighted average shares outstanding
Basic (in shares)	56,385,454	56,194,184
Diluted (in shares)	56,775,039	56,194,184

Consolidated_Statements_of_Com

Consolidated Statements of Comprehensive Income (Loss) (Unaudited) (USD $)	3 Months Ended
In Millions, unless otherwise specified	Mar. 31, 2015	Mar. 31, 2014
Comprehensive Income (Loss)
Net income (loss)	$31.50	($78.40)
Investment securities available-for-sale
Unrealized gains	23.7	5.9
Reclassification of net loss on the sale	0	-0.2
Total investment securities available-for-sale, before tax	23.7	5.7
Other comprehensive income, deferred tax expense
Provision for income taxes	8.8	2
Other comprehensive income, net of tax	14.9	3.7
Comprehensive income (loss)	$46.40	($74.70)

Consolidated_Statements_of_Sto

Consolidated Statements of Stockholders' Equity (Unaudited) (USD $)	Total	Preferred Stock	Common Stock	Additional Paid in Capital	Accumulated Other Comprehensive Income (Loss)	Retained Earnings (Accumulated Deficit)
In Millions, unless otherwise specified
Beginning balance at Dec. 31, 2013	$1,426	$266.20	$0.60	$1,479.20	($4.80)	($315.20)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net loss	-78.4					-78.4
Other Comprehensive Income (Loss), Unrealized Holding Gain (Loss) on Securities Arising During Period, Net of Tax					3.9
Total other comprehensive income	3.7				3.7
Accretion of preferred stock	0	0.5				-0.5
Stock-based compensation	0.2			0.2
Ending balance at Mar. 31, 2014	1,351.50	266.7	0.6	1,479.40	-1.1	-394.1
Beginning balance at Dec. 31, 2014	1,373	266.7	0.6	1,482.30	8.4	-385.2
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net loss	31.5					31.5
Other Comprehensive Income (Loss), Unrealized Holding Gain (Loss) on Securities Arising During Period, Net of Tax					14.9
Total other comprehensive income	14.9
Stock-based compensation	0.3			0.3
Ending balance at Mar. 31, 2015	$1,420	$266.70	$0.60	$1,482.60	$23.30	($353.70)

Consolidated_Statements_of_Cas

Consolidated Statements of Cash Flows (Unaudited) (USD $)	3 Months Ended
	Mar. 31, 2015	Mar. 31, 2014
Operating Activities
Net income (loss)	$31,500,000	($78,400,000)
Adjustments to reconcile net income (loss) to net cash used in operating activities:
Provision for loan losses	-3,500,000
Representation and warranty benefit	-1,500,000	-1,700,000
Depreciation and amortization	5,700,000
Deferred income taxes	18,000,000
Changes in fair value of MSRs, DOJ litigation settlement liability and long-term debt	28,800,000
Premium, change in fair value, and other non-cash changes	-263,300,000
Net gain on loan and asset sales	-90,700,000
Proceeds from sales of loans held-for-sale (HFS)	3,790,400,000
Origination and repurchase of loans, net of principal repayments	-6,927,900,000
Decrease in accrued interest receivable	-2,500,000
Decrease in other assets, excludes purchase of other investments	17,400,000
Net charge-offs in representation and warranty reserve	-500,000
Decrease in other liabilities	-12,700,000
Net cash used in operating activities	-3,410,800,000
Investing Activities
Proceeds from sale of available for sale securities including loans that have been securitized	2,706,200,000
Collection of principal on investment securities available-for-sale	53,400,000
Purchase of investment securities available-for-sale and other	-652,000,000
Proceeds received from the sale of held-for-investment loans (HFI)	277,000,000
Origination and purchase of loans HFI, net of principal repayments	-589,400,000
Proceeds from the disposition of repossessed assets	5,400,000
Acquisitions of premises and equipment, net of proceeds	-8,500,000
Proceeds from the sale of mortgage servicing rights	31,700,000
Net cash provided by investing activities	1,823,800,000
Financing Activities
Net increase in deposit accounts	480,800,000
Proceeds from increases in Federal Home Loan Bank Advances	5,255,000,000
Repayment of Federal Home Loan Bank advances	-4,144,000,000
Repayment of trust preferred securities and long-term debt	-15,500,000
Net receipt of payments of loans serviced for others	113,700,000
Net receipt of escrow payments	2,400,000
Net cash provided by financing activities	1,692,400,000
Net increase (decrease) in cash and cash equivalents	105,400,000
Beginning cash and cash equivalents	136,000,000
Ending cash and cash equivalents	241,400,000
Supplemental disclosure of cash flow information
Interest paid on deposits and other borrowings	11,800,000
Income tax payments	3,000,000
Non-cash reclassification of loans originated HFI to loans HFS	277,000,000
Non-cash reclassification of loans originated HFS to HFI	5,000,000
Non-cash reclassification of loans HFS to AFS securities	2,709,300,000
Mortgage servicing rights resulting from sale or securitization of loans	67,900,000
Non-cash reclassification of loans with government guarantee to other assets	372,800,000
As Restated
Operating Activities
Net income (loss)		-78,400,000
Adjustments to reconcile net income (loss) to net cash used in operating activities:
Provision for loan losses		112,300,000
Representation and warranty benefit		-1,700,000
Depreciation and amortization		5,600,000
Deferred income taxes		-36,700,000
Changes in fair value of MSRs, DOJ litigation settlement liability and long-term debt		11,900,000
Premium, change in fair value, and other non-cash changes		-136,200,000
Net gain on loan and asset sales		-48,400,000
Proceeds from sales of loans held-for-sale (HFS)		3,032,800,000
Origination and repurchase of loans, net of principal repayments		-4,686,400,000
Decrease in accrued interest receivable		-3,200,000
Decrease in other assets, excludes purchase of other investments		14,400,000
Net charge-offs in representation and warranty reserve		-5,600,000
Decrease in other liabilities		-41,900,000
Net cash used in operating activities		-1,861,500,000
Investing Activities
Proceeds from sale of available for sale securities including loans that have been securitized		1,909,000,000
Collection of principal on investment securities available-for-sale		30,900,000
Purchase of investment securities available-for-sale and other		-205,600,000
Proceeds received from the sale of held-for-investment loans (HFI)		35,100,000
Origination and purchase of loans HFI, net of principal repayments		-312,600,000
Proceeds from the disposition of repossessed assets		10,000,000
Acquisitions of premises and equipment, net of proceeds		-7,800,000
Proceeds from the sale of mortgage servicing rights		11,700,000
Net cash provided by investing activities		1,470,700,000
Financing Activities
Net increase in deposit accounts		170,000,000
Proceeds from increases in Federal Home Loan Bank Advances		4,332,000,000
Repayment of Federal Home Loan Bank advances		-4,195,000,000
Repayment of trust preferred securities and long-term debt		-5,400,000
Net receipt of payments of loans serviced for others		24,900,000
Net receipt of escrow payments		3,000,000
Net cash provided by financing activities		329,500,000
Net increase (decrease) in cash and cash equivalents		-61,300,000
Beginning cash and cash equivalents		280,500,000
Ending cash and cash equivalents		219,200,000
Supplemental disclosure of cash flow information
Interest paid on deposits and other borrowings		6,400,000
Income tax payments		0
Non-cash reclassification of loans originated HFI to loans HFS		308,300,000
Non-cash reclassification of loans originated HFS to HFI		4,600,000
Non-cash reclassification of loans HFS to AFS securities		1,889,100,000
Mortgage servicing rights resulting from sale or securitization of loans		51,000,000
Non-cash reclassification of loans with government guarantee to other assets		$0

Basis_of_Presentation_and_Acco

Basis of Presentation and Accounting Standards	3 Months Ended
	Mar. 31, 2015
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Basis of Presentation and Accounting Standards	Basis of Presentation and Accounting Standards
	The accompanying financial statements of Flagstar Bancorp, Inc. ("Flagstar" or the "Company"), including its wholly owned principal subsidiary, Flagstar Bank, FSB (the "Bank"), have been prepared using U.S. generally accepted accounting principles ("GAAP") for interim financial statements.
	These consolidated financial statements do not include all of the information and footnotes required by GAAP for a full year presentation and certain disclosures have been condensed or omitted in accordance with rules and regulations of the Securities and Exchange Commission. These interim financial statements are unaudited and include, in the opinion of the Company, all adjustments necessary for a fair presentation of the results for the periods indicated, which, however, are not necessarily indicative of results which may be expected for the full year. These consolidated financial statements and notes should be read in conjunction with the consolidated financial statements and footnotes thereto included in the Company's Annual Report on Form 10-K for the year ended December 31, 2014, which are available on the Company’s website, at flagstar.com, and on the SEC website, at sec.gov. We reviewed subsequent events and determined that no further disclosures or adjustments were required. Certain prior period amounts have been reclassified to conform to the current period presentation.
	Recently Adopted Accounting Pronouncements
	On January 1, 2015, the Company adopted to FASB Accounting Standards Update ("ASU") Update No. 2014-14, Receivables - Troubled Debt Restructuring by Creditors (Subtopic 310-40). The amendments in this update requires that a mortgage loan be derecognized and that a separate other receivable be recognized upon foreclosure if the following conditions are met: (1) the loan has a government guarantee that is not separable from the loan before foreclosure, (2) at the time of foreclosure, the creditor has the intent to convey the real estate property to the guarantor and make a claim on the guarantee, and the creditor has the ability to recover under that claim, and (3) at the time of foreclosure, any amount of the claim that is determined on the basis of the fair value of the real estate is fixed. Upon foreclosure, the separate other receivable should be measured based on the amount of the loan balance (principal and interest) expected to be recovered from the guarantor. The Company reclassified $329 million of repossessed assets and associated claims from loans with government guarantees to other assets on the Consolidated Statements of Financial Condition at March 31, 2015.
	Recently Issued Accounting Pronouncements
	In January 2015, the FASB issued ASU No. 2015-01, Income Statement - Extraordinary and Unusual items (Subtopic 22-20). The adoption of this guidance is not expected to have a material effect on the Company’s Consolidated Financial Statements or the Notes thereto.
	In February 2015, the FASB issued ASU No. 2015-02, Consolidation (Topic 810) - Amendments to the Consolidation Analysis. Under the amended guidance all reporting entities are within the scope of Subtopic 810-10, Consolidation - Overall, including limited partnerships and similar legal entities, unless a scope exception applies. The presumption that a general partner controls a limited partnership has been eliminated. The ASU is effective for the annual period ending after December 15, 2015, and all reporting periods thereafter. The adoption of this guidance is not expected to have a material effect on the Company’s Consolidated Financial Statements or the Notes thereto.
	In April 2015, the FASB issued ASU No. 2015-03, Interest-Imputation of Interest (Subtopic 835-30). The amendments will require that debt issuance costs related to a recognized debt liability be presented in the balance sheet as a direct deduction from the carrying amount of that debt liability, consistent with debt discounts. The ASU is effective prospectively or retrospectively for annual and interim periods beginning after December 15, 2015. The adoption of this guidance is not expected to have a material effect on the Company’s Consolidated Financial Statements or the Notes thereto.
	In April 2015, the FASB issued ASU No. 2015-05, Intangibles - Goodwill and Other Internal-Use Software. The amendments in this update provide guidance to customers about whether a cloud computing arrangement includes a software license. If a cloud computing arrangement includes a software license, then the customer should account for the software license element of the arrangement consistent with the acquisition of other licenses. If it does not include a software license, the customer should account for the arrangement as a service contract. The ASU is effective for the annual period ending after December 15, 2015, and all reporting periods thereafter. The adoption of this guidance is not expected to have a material effect on the Company’s Consolidated Financial Statements or the Notes thereto.

Investment_Securities

Investment Securities	3 Months Ended
	Mar. 31, 2015
Investments, Debt and Equity Securities [Abstract]
Investment Securities	Investment Securities
	As of March 31, 2015 and December 31, 2014, investment securities were comprised of the following.
			Amortized			Gross			Gross				Fair Value
			Cost			Unrealized			Unrealized
						Gains			Losses
			(Dollars in millions)
	March 31, 2015
	Available-for-sale securities
	Agency		$	398		$	8		$	—			$	406
	Agency-collateralized mortgage obligations		1,863			28			(2		)		1,889
	Total available-for-sale securities		$	2,261		$	36		$	(2	)		$	2,295
	December 31, 2014
	Available-for-sale securities
	Agency		$	925		$	6		$	(2	)		$	929
	Agency-collateralized mortgage obligations		734			8			(1		)		741
	Municipal obligations		2			—			—				2
	Total available-for-sale securities		$	1,661		$	14		$	(3	)		$	1,672
	Available-for-sale securities
	Securities available-for-sale are carried at fair value, with unrealized gains and losses reported as a component of other comprehensive losses to the extent they are temporary in nature. Credit related declines in the securities are classified as other-than-temporary impairments ("OTTI") and are reported as a separate component of noninterest income within the Consolidated Statement of Operations. OTTI are considered to have occurred if (1) the Company intends to sell the security; (2) it is more likely than not the Company will be required to sell the security before recovery of its amortized cost basis; or (3) the present value of expected cash flows is not sufficient to recover all contractually required principal and interest payments.
	The Company purchased $652.0 million of investment securities, which included agency securities, comprised of mortgage-backed securities and collateralized mortgage obligations during the three months ended March 31, 2015. The Company purchased $206.9 million of mortgage-backed agency securities during the three months ended March 31, 2014.
	The following table summarizes by duration the unrealized loss positions on investment securities available-for-sale.
		Unrealized Loss Position with										Unrealized Loss Position with
		Duration 12 Months and Over										Duration Under 12 Months
		Fair Value			Number of			Unrealized				Fair			Number of		Unrealized
					Securities			Loss				Value			Securities		Loss
	Type of Security	(Dollars in millions)
	March 31, 2015
	Agency	$	—		$	—		$	—			$	10		$	1	$	—
	Agency-collateralized mortgage obligations	37			6			(1		)		254			14		(1		)
	December 31, 2014
	Agency	$	53		6			$	—			$	305		21		$	(2	)
	Agency-collateralized mortgage obligations	98			10			(1		)		38			4		—
	Gains (losses) on sales of available-for-sale securities are reported in net gain on securities available-for-sale in the Consolidated Statements of Operations. During the three months ended March 31, 2015, there were no sales of investment securities except for those related to loans that had been securitized for sale in the normal course of business, compared to $18.7 million sales of U.S. government sponsored agencies, resulting in a gain of $0.2 million during the three months ended March 31, 2014. During the three months ended March 31, 2015, $2.0 million of municipal obligations matured.

Loans_HeldforSale

Loans Held-for-Sale	3 Months Ended
	Mar. 31, 2015
Receivables Held-for-sale [Abstract]
Loans Held-for-Sale	Loans Held-for-Sale
	At March 31, 2015 and December 31, 2014, loans held-for-sale totaled $2.1 billion and $1.2 billion, respectively. For the period ended March 31, 2015 and 2014, the Company reported net gain on loan sales of $91.3 million and $45.3 million, respectively. The increase in loans held-for-sale and net gain on loan sales was the result of an increase in mortgage loan originations and an improvement in the gain on sale margin during the three months ended March 31, 2015.
	At March 31, 2015 and December 31, 2014, $53 million and $48 million, respectively, of loans held-for-sale were recorded at lower of cost or fair value. The remainder of the loans in the portfolio is recorded at fair value as the Company elected the fair value option.

Loans_with_Government_Guarante

Loans with Government Guarantees	3 Months Ended
	Mar. 31, 2015
Loans and Leases Receivable Disclosure [Abstract]
Loans with Government Guarantees	Loans with Government Guarantees
	Substantially all of loans with government guarantees continue to be insured or guaranteed by the FHA. These repurchased loans earn interest at a rate based upon the 10-year U.S. Treasury note rate at the time the underlying loan becomes delinquent.
	At March 31, 2015, loans with government guarantees actually repurchased totaled $704 million and were classified as loans with government guarantees. At December 31, 2014, loans with government guarantees actually repurchased totaled $1.1 billion and were classified as loans repurchased with government guarantees.
	As a result of the Company's adoption of ASU Update No. 2014-14, Receivables - Troubled Debt Restructuring by Creditors (Subtopic 310-40), the Company reclassified $329 million of repossessed assets and associated claims from loans with government guarantees to other assets at March 31, 2015. At December 31, 2014, $373 million of repossessed assets and associated claims would have been reclassified had the ASU been effective.

Loans_HeldforInvestment

Loans Held-for-Investment	3 Months Ended
	Mar. 31, 2015
Receivables [Abstract]
Loans Held-for-Investment	Loans Held-for-Investment
	Loans held-for-investment are summarized as follows.
		March 31,				December 31,
		2015				2014
		(Dollars in millions)
	Consumer loans
	Residential first mortgage	$	2,013			$	2,194
	Second mortgage	146				149
	HELOC	316				256
	Other	30				31
	Total consumer loans	2,505				2,630
	Commercial loans
	Commercial real estate	635				620
	Commercial and industrial	408				429
	Warehouse lending	1,083				769
	Total commercial loans	2,126				1,818
	Total loans held-for-investment	4,631				4,448
	Less allowance for loan losses	(253		)		(297		)
	Loans held-for-investment, net	$	4,378			$	4,151
	At December 31, 2014, the Company had $350 million of troubled debt restructured residential first mortgage loans with a specifically identified reserve of $76 million. During the three months ended March 31, 2015, the Company remeasured this specifically identified reserve relating to the troubled debt restructured loans, resulting in a $36.0 million reduction in reserve based on a change in expected future cash flows. During the first quarter 2015, the Company changed its intent to hold these loans for investment and instead decided to hold these loans for sale. The loans for which the intent changed had an approximate unpaid principal balance of $331 million, including approximately $291 million of troubled debt restructured residential first mortgage loans, and $30 million in specifically identified reserves at the time this intent was changed. These loans were transferred to loans held-for-sale and subsequently sold, resulting in a loss on sale of $0.4 million.
	During the three months ended March 31, 2014, the Company sold nonperforming, troubled debt restructured residential first mortgage and residential first mortgage jumbo loans with unpaid principal balances totaling $313 million. A portion of the allowance for loan losses associated with these loans was reduced, resulting in a $2.3 million reduction in reserve. The loans were transferred to held-for-sale, resulting in a gain on sale of $1.4 million.
	The Company has pledged certain loans held-for-investment, loans held-for-sale and loans with government guarantees to collateralize lines of credit and/or borrowings with the Federal Reserve Bank of Chicago and the Federal Home Loan Bank of Indianapolis. At March 31, 2015 and December 31, 2014, the Company pledged $4.6 billion and $4.1 billion, respectively.
	The allowance for loan losses by class of loan is summarized in the following table.
		Residential				Second				HELOC				Other			Commercial			Commercial		Warehouse		Total
		First				Mortgage								Consumer			Real Estate			and Industrial		Lending
		Mortgage
		(Dollars in millions)
	Three Months Ended March 31, 2015
	Beginning balance allowance for loan losses	$	234.3			$	12.4			$	18.7			$	0.8		$	17.4		$	10.7	$	2.7	$	297
	Charge-offs	(40.8		)		(0.8		)		(0.9		)		(0.7		)	—			—		—		(43.2		)
	Recoveries	0.3				0.1				0.1				0.5			1.7			—		—		2.7
	Provision (benefit)	(6.4		)		0.3				3.3				(0.2		)	(2.9		)	1.3		1.1		(3.5		)
	Ending balance allowance for loan losses	$	187.4			$	12			$	21.2			$	0.4		$	16.2		$	12	$	3.8	$	253
	Three Months Ended March 31, 2014
	Beginning balance allowance for loan losses	$	161.2			$	12.1			$	7.9			$	2.4		$	18.5		$	3.5	$	1.4	$	207
	Charge-offs	(10.8		)		(1.1		)		(2.7		)		(0.5		)	—			—		—		(15.1		)
	Recoveries	1.2				0.1				—				0.3			1.1			0.1		—		2.8
	Provision (benefit)	104.8				2.3				6.3				(0.8		)	(1.5		)	1.1		0.1		112.3
	Ending balance allowance for loan losses	$	256.4			$	13.4			$	11.5			$	1.4		$	18.1		$	4.7	$	1.5	$	307
	For the three months ended March 31, 2015, the Company sold nonperforming residential first mortgage loans as discussed above. The $36.0 million reduction in the reserve associated with these sales was partially offset by an increase in volume and reserve rates in the portfolio.
	The loans held-for-investment and allowance for loan losses by class of loan is summarized in the following table.
		Residential				Second				HELOC				Other			Commercial			Commercial		Warehouse		Total
		First				Mortgage								Consumer			Real Estate			and  Industrial		Lending
		Mortgage
		(Dollars in millions)
	March 31, 2015
	Loans held-for-investment
	Individually evaluated	$	116			$	31			$	1			$	—		$	—		$	—	$	—	$	148
	Collectively evaluated (1)	1,871				65				202				30			635			408		1,083		4,294
	Total loans	$	1,987			$	96			$	203			$	30		$	635		$	408	$	1,083	$	4,442
	Allowance for loan losses
	Individually evaluated	$	15.9			$	5.5			$	0.9			$	0.1		$	—		$	—	$	—	$	22.4
	Collectively evaluated (1)	171.5				6.5				20.3				0.3			16.2			12		3.8		230.6
	Total allowance for loan losses	$	187.4			$	12			$	21.2			$	0.4		$	16.2		$	12	$	3.8	$	253
	December 31, 2014
	Loans held-for-investment
	Individually evaluated	$	385			$	31			$	1			$	—		$	—		$	—	$	—	$	417
	Collectively evaluated (1)	1,782				65				124				31			620			429		769		3,820
	Total loans	$	2,167			$	96			$	125			$	31		$	620		$	429	$	769	$	4,237
	Allowance for loan losses
	Individually evaluated	$	81.8			$	5.6			$	1			$	0.1		$	—		$	—	$	—	$	88.5
	Collectively evaluated (1)	152.5				6.8				17.7				0.7			17.4			10.7		2.7		208.5
	Total allowance for loan losses	$	234.3			$	12.4			$	18.7			$	0.8		$	17.4		$	10.7	$	2.7	$	297
	-1	Excludes loans carried under the fair value option.
The allowance for loan losses, other than those that have been identified for individual evaluation for impairment, is determined on a loan pool basis by grouping loan types with similar risk characteristics to determine the Company's best estimate of incurred losses. Management evaluates the results of the allowance for loan losses model and makes qualitative adjustments to the results of the model when it is determined that model results do not reflect all losses inherent in the loan portfolios due to changes in recent economic trends and conditions, or other relevant factors.
For those loans not individually evaluated for impairment, management has sub-divided the commercial and consumer loans into portfolios with common risk characteristics.
The following table sets forth the loans held-for-investment aging analysis as of March 31, 2015 and December 31, 2014, of past due and current loans.
	30-59 Days				60-89 Days				90 Days or				Total			Current			Total
	Past Due				Past Due				Greater Past				Past Due						Investment
									Due										Loans
	(Dollars in millions)
March 31, 2015
Consumer loans
Residential first mortgage	$	17			$	6			$	78			$	101		$	1,912		$	2,013
Second mortgage	1				—				2				3			143			146
HELOC	4				2				4				10			306			316
Other	—				—				—				—			30			30
Total consumer loans	22				8				84				114			2,391			2,505
Commercial loans
Commercial real estate	—				—				—				—			635			635
Commercial and industrial	—				—				—				—			408			408
Warehouse lending	—				—				—				—			1,083			1,083
Total commercial loans	—				—				—				—			2,126			2,126
Total loans (1)	$	22			$	8			$	84			$	114		$	4,517		$	4,631
December 31, 2014
Consumer loans
Residential first mortgage	$	29			$	9			$	115			$	153		$	2,041		$	2,194
Second mortgage	1				—				2				3			146			149
HELOC	4				1				3				8			248			256
Other	—				—				—				—			31			31
Total consumer loans	34				10				120				164			2,466			2,630
Commercial loans
Commercial real estate	—				—				—				—			620			620
Commercial and industrial	—				—				—				—			429			429
Warehouse lending	—				—				—				—			769			769
Total commercial loans	—				—				—				—			1,818			1,818
Total loans (1)	$	34			$	10			$	120			$	164		$	4,284		$	4,448
-1	Includes $5 million of loans 90 days or greater past due accounted for under the fair value option at both March 31, 2015 and December 31, 2014, respectively.
Loans held-for-investment and loans held-for-sale on which interest accruals have been discontinued totaled approximately $103 million and $135 million at March 31, 2015 and December 31, 2014, respectively, and $118 million at March 31, 2014. Interest income is recognized on impaired loans using a cost recovery method unless amounts contractually due are not in doubt. Interest that would have been accrued on impaired loans totaled approximately $1.4 million and $1.8 million during the three months ended March 31, 2015 and 2014, respectively. At March 31, 2015 and December 31, 2014, the Company had no loans 90 days past due and still accruing.
Troubled Debt Restructuring
The Company may modify certain loans in both consumer and commercial loan portfolios to retain customers or to maximize collection of the outstanding loan balance. The Company has programs designed to assist borrowers by extending payment dates or reducing the borrower's contractual payments. All loan modifications are made on a case-by-case basis. The Company's standards relating to loan modifications consider, among other factors, minimum verified income requirements, cash flow analysis, and collateral valuations. TDRs result in those instances in which a borrower demonstrates financial difficulty and for which a concession has been granted, which includes reductions of interest rate, extensions of amortization period, principal and/or interest forgiveness and other actions intended to minimize the economic loss and to avoid foreclosure or repossession of collateral. These loans are classified as TDRs and are included in nonaccrual loans if the loan was nonperforming prior to the restructuring. These loans will continue on nonaccrual status until the borrower has established a willingness and ability to make the restructured payments for at least six months, after which they will begin to accrue interest.
The following table provides a summary of TDRs outstanding by type and performing status.
	TDRs
	Performing				Nonperforming				Total
31-Mar-15	(Dollars in millions)
Consumer loans (1)
Residential first mortgage	$	57			$	25			$	82
Second mortgage	35				1				36
HELOC	19				2				21
Total TDRs (2)	$	111			$	28			$	139
31-Dec-14
Consumer loans (1)
Residential first mortgage	$	307			$	43			$	350
Second mortgage	35				2				37
HELOC	20				1				21
Total TDRs (2)	$	362			$	46			$	408
-1	The allowance for loan losses on consumer TDR loans totaled $23 million and $81 million at March 31, 2015 and December 31, 2014, respectively.
-2	Includes $30 million of TDR loans accounted for under the fair value option at both March 31, 2015 and December 31, 2014.
Some loan modifications classified as TDRs may not ultimately result in the full collection of principal and interest, as modified, but may give rise to potential incremental losses. Such losses are factored into the Company's allowance for loan losses estimate. Management evaluates loans for impairment both collectively and individually depending on the risk characteristics underlying the loan and the availability of data. The Company measures impairment using the discounted cash flow method for performing TDRs and measures impairment based on collateral values for re-defaulted TDRs.
The following table provides a summary of newly modified TDRs and TDR loans in the past 12 months that have subsequently defaulted during the three months ended March 31, 2015 and 2014. All TDR classes within consumer and commercial loan portfolios are considered subsequently defaulted when greater than 90 days past due.
	Number of Accounts			Pre-Modification Unpaid Principal Balance				Post-Modification Unpaid Principal Balance (1)				Increase (Decrease) in Allowance at Modification
Three Months Ended March 31, 2015				(Dollars in millions)
Residential first mortgages	114			$	30.5			$	28.7			$	0.6
Second mortgages	33			1.3				1.2				(0.1		)
HELOC (2)	36			0.2				0.7				—
Total TDR loans	183			$	32			$	30.6			$	0.5
	Number of Accounts			Pre-Modification Unpaid Principal Balance				Post-Modification Unpaid Principal Balance (1)				Increase in Allowance at Modification
Three Months Ended March 31, 2014				(Dollars in millions)
Residential first mortgages	25			$	7			$	6.7			$	0.6
Second mortgages	94			3				2.9				—
HELOC (2)	9			0.4				0.3				—
Total TDR loans	128			$	10.4			$	9.9			$	0.6
-1	Post-modification balances include past due amounts that are capitalized at modification date.
-2	HELOC post-modification unpaid principal balance reflects write downs.
The following table presents impaired loans and the associated allowance:
	March 31, 2015												December 31, 2014
	Recorded				Unpaid				Related				Recorded			Unpaid			Related
	Investment				Principal				Allowance				Investment			Principal			Allowance
					Balance											Balance
	(Dollars in millions)
With no related allowance recorded
Consumer loans
Residential first mortgage loans	$	40			$	46			$	—			$	63		$	78		$	—
Second mortgage	1				6				—				1			6			—
HELOC	—				1				—				—			1			—
	$	41			$	53			$	—			$	64		$	85		$	—
With an allowance recorded
Consumer loans
Residential first mortgage	$	75			$	81			$	16			$	321		$	325		$	82
Second mortgage	29				29				6				29			29			6
HELOC	1				1				1				1			1			1
	$	105			$	111			$	23			$	351		$	355		$	89
Total
Consumer loans
Residential first mortgage	$	115			$	127			$	16			$	384		$	403		$	82
Second mortgage	30				35				6				30			35			6
HELOC	1				2				1				1			2			1
Total impaired loans	$	146			$	164			$	23			$	415		$	440		$	89
The following table presents average impaired loans and the interest income recognized:
	Three Months Ended March 31,
	2015								2014
	Average Recorded Investment				Interest Income Recognized				Average Recorded Investment				Interest Income Recognized
	(Dollars in millions)
Consumer loans
Residential first mortgage	$	306.7			$	2.1			$	413.2			$	2.6
Second mortgage	30.8				0.4				25.2				0.2
HELOC	0.8				—				0.2				—
Commercial loans
Commercial real estate	0.4				—				2				—
Total impaired loans	$	338.7			$	2.5			$	440.6			$	2.8
The Company follows the guidance provided in the FFIEC’s "Uniform Retail Credit Classification and Account Management Policy" issued June 20, 2000 for Retail Credits. This policy focuses on the delinquency status, loan type, collateral protection, and other events influencing repayment, such as bankruptcy, death, and fraud, in determining the appropriate risk classification for a retail credit. The Company considers performing retail loans that are 60 days delinquent as well as all performing retail TDRs as Watch. All nonaccrual retail loans as well as retail loans 90 days or more delinquent are classified as Substandard. In cases of bankruptcy, death, or fraud, the Company will follow the FFIEC policy and classify the loans as appropriate.
Credit Quality
The Company utilizes an internal risk rating system which is applied to all consumer and commercial loans. Management conducts periodic examinations which serve as an independent verification of the accuracy of the ratings assigned. Loan grades are based on different factors within the borrowing relationship: entity sales, debt service coverage, debt/total net worth, liquidity, balance sheet and income statement trends, management experience, business stability, financing structure of the deal, and financial reporting requirements. The underlying collateral is also rated based on the specific type of collateral and corresponding LTV. The combination of the borrower and collateral risk ratings result in the final rating for the borrowing relationship. Descriptions of the Company's internal risk ratings as they relate to credit quality follow the ratings used by the U.S. bank regulatory agencies as listed below.
Pass. Pass assets are not impaired nor do they have any known deficiencies that could impact the quality of the asset.
Watch. Watch assets are defined as pass rated assets that exhibit elevated risk characteristics or other factors that deserve management’s close attention and increased monitoring. However, the asset does not exhibit a potential or well-defined weakness that would warrant a downgrade to criticized or adverse classification.
Special mention. Assets identified as special mention possess credit deficiencies or potential weaknesses deserving management's close attention. Special mention assets have a potential weakness or pose an unwarranted financial risk that, if not corrected, could weaken the assets and increase risk in the future. Special mention assets are criticized, but do not expose an institution to sufficient risk to warrant adverse classification.
Substandard. Assets identified as substandard are inadequately protected by the current net worth and paying capacity of the obligor or of the collateral pledged, if any. Assets so classified must have a well-defined weakness or weaknesses. They are characterized by the distinct possibility that the Company will sustain some loss if the deficiencies are not corrected. For HELOC loans and other consumer loans, the Company evaluates credit quality based on the aging and status of payment activity and includes all nonperforming loans.
Doubtful. Assets identified as doubtful have all the weaknesses inherent in those classified as substandard, with the added characteristic that the weaknesses make collection or liquidation in full, on the basis of current existing facts, conditions and values, highly questionable and improbable. The possibility of a loss on a doubtful asset is high. However, due to important and reasonably specific pending factors, which may work to strengthen (or weaken) the asset, its classification as an estimated loss is deferred until its more exact status can be determined.
Loss. An asset classified loss is considered uncollectible and of such little value that the continuance as bankable asset is not warranted. This classification does not mean that an asset has absolutely no recovery or salvage value, but, rather that it is not practical or desirable to defer writing off this basically worthless asset even though partial recovery may occur in the future.
Commercial Credit Loans	31-Mar-15
	Commercial  Real				Commercial and				Warehouse				Total
	Estate				Industrial								Commercial
	(Dollars in millions)
Grade
Pass	$	596			$	350			$	937			$	1,883
Watch	29				19				117				165
Special mention	7				14				29				50
Substandard	3				25				—				28
Total loans	$	635			$	408			$	1,083			$	2,126
Consumer Credit Loans	31-Mar-15
	Residential First				Second				HELOC				Other  Consumer			Total
	Mortgage				Mortgage
	(Dollars in millions)
Grade
Pass	$	1,874			$	108			$	292			$	30		$	2,304
Watch	61				36				20				—			117
Substandard	78				2				4				—			84
Total loans	$	2,013			$	146			$	316			$	30		$	2,505
Commercial Credit Loans	31-Dec-14
	Commercial  Real				Commercial and				Warehouse				Total
	Estate				Industrial								Commercial
	(Dollars in millions)
Grade
Pass	$	578			$	399			$	650			$	1,627
Watch	29				10				119				158
Special mention	2				—				—				2
Substandard	11				20				—				31
Total loans	$	620			$	429			$	769			$	1,818
Consumer Credit Loans	31-Dec-14
	Residential First				Second				HELOC				Other  Consumer			Total
	Mortgage				Mortgage											Consumer
	(Dollars in millions)
Grade
Pass	$	1,765			$	111			$	232			$	31		$	2,139
Watch	314				36				21				—			371
Substandard	115				2				3				—			120
Total loans	$	2,194			$	149			$	256			$	31		$	2,630

Variable_Interest_Entities_VIE

Variable Interest Entities (VIEs)	3 Months Ended
	Mar. 31, 2015
Disclosure of Transfer of Securitizations or Asset-backed Financing Financial Assets Accounted for as Sale [Abstract]
Variable Interest Entities (VIEs)	Variable Interest Entities ("VIEs")
	Due to the Assured Settlement Agreement in 2013, the Company became the primary beneficiary and reconsolidated the FSTAR 2005-1 and the FSTAR 2006-2 HELOC securitization trust's assets and liabilities. The Company had elected the fair value option for these assets and liabilities. At March 31, 2015, the Company has a total fair value of HELOC loans of $112 million and long-term debt of $70 million related to these variable interest entities. At December 31, 2014, the fair value of HELOC loans totaled $132 million and long-term debt totaled $84 million related to these variable interest entities. The decrease during the three months ended March 31, 2015 on the HELOC securitization trust's loans, was primarily due to a $5.5 million reduction in the fair value resulting from loans reaching the maturity dates.
	The following table provides a summary of the classifications of consolidated VIE assets and liabilities included in the Consolidated Financial Statements.
		2005-1		2006-2		Total
	March 31, 2015	(Dollars in millions)
	HELOC Securitizations
	Assets
	Loans held-for-investment	$	47	$	65	$	112
	Liabilities
	Long-term debt	$	31	$	39	$	70
		2005-1		2006-2		Total
	December 31, 2014	(Dollars in millions)
	HELOC Securitizations
	Assets
	Loans held-for-investment	$	63	$	69	$	132
	Liabilities
	Long-term debt	$	42	$	42	$	84
	The economic performance of the VIEs is most significantly impacted by the performance of the underlying loans. The principal risks to which the entities were exposed include credit risk and interest-rate risk.
	The Company has an unconsolidated VIE with which the Company has a continuing involvement, but is not the primary beneficiary. The financial assets were de-recognized by the Company upon transfer to the FSTAR 2007-1 mortgage securitization trust, which then issued and sold mortgage-backed securities to third-party investors. The Company relinquished control over the loans at the time the financial assets were transferred to the FSTAR 2007-1 mortgage securitization trust and the Company recognized a gain on the sale of the transferred assets. In accordance with the MBIA Settlement Agreement, MBIA will be required to satisfy all of its obligation under the FSTAR 2007-1 insurance policy and related FSTAR 2007-1 obligations without further recourse to the Company. At March 31, 2015, the FSTAR 2007-1 mortgage securitization trust included 3,470 loans, with an aggregate principal balance of $135 million.

Mortgage_Servicing_Rights

Mortgage Servicing Rights	3 Months Ended
	Mar. 31, 2015
Transfers and Servicing [Abstract]
Mortgage Servicing Rights	Mortgage Servicing Rights
	The Company has investments in mortgage servicing rights ("MSRs") to support mortgage strategies and to deploy capital at acceptable returns. The Company also deploys derivatives and other fair value assets as economic hedges to offset changes in the fair value of the MSRs resulting from the actual or anticipated changes in prepayments stemming from changing interest rate environments. The Company's portfolio of MSRs is highly sensitive to movements in interest rates. The primary risk associated with MSRs is the potential value as a result of higher than anticipated prepayments due to loan refinancing prompted, in part, by declining interest rates. Conversely, these assets generally increase in value in a rising interest rate environment to the extent that prepayments are slower than anticipated. There is also a risk of valuation decline due to higher than expected increases in default rates, which the Company does not believe can be effectively hedged. See Note 8 of the Notes to the Consolidated Financial Statements, herein, for additional information regarding the instruments utilized to hedge the risks of MSRs.
	Changes in the carrying value of residential first mortgage MSRs, accounted for at fair value, were as follows.
		Three Months Ended March 31,
		2015				2014
		(Dollars in millions)
	Balance at beginning of period	$	257.8			$	284.7
	Additions from loans sold with servicing retained	67.9				51
	Reductions from sales	(21.6		)		(5.9		)
	Changes in fair value due to (1)
	Decrease in MSR due to pay-offs, pay-downs and run-off	(14.6		)		(4.9		)
	Changes in valuation inputs or assumptions (2)	(10.9		)		(4.7		)
	Fair value of MSRs at end of period	$	278.6			$	320.2
	-1	Changes in fair value are included within net return on mortgage servicing asset on the Consolidated Statements of Operations.
	-2	Represents estimated MSR value change resulting primarily from market-driven changes in interest rates.
	The fair value of residential MSRs is estimated using a valuation model that calculates the present value of estimated future net servicing cash flows, taking into consideration expected mortgage loan prepayment rates, discount rates, servicing costs, and other economic factors, which are determined based on current market conditions. The Company obtains independent third-party valuations of its residential MSRs on a quarterly basis to assess the reasonableness of the fair value calculated by the valuation model. In certain circumstances, based on the probability of the completion of a sale of MSRs pursuant to a bona-fide purchase offer, the Company considers the bid price of that offer and identifiable transaction costs in comparison to the calculated fair value and may adjust the estimate of fair value to reflect the terms of the pending transaction.
	The following table summarizes income and fees associated with the mortgage servicing asset.
		Three Months Ended March 31,
		2015				2014
		(Dollars in millions)
	Income on mortgage servicing asset
	Servicing fees, ancillary income and late fees	$	16.6			$	17.2
	Fair value adjustments	(25.5		)		(9.6		)
	Gain on hedging activity (1)	8.3				4.9
	Net transaction costs	(1.8		)		3.6
	Total (loss) income on mortgage servicing asset, included in net return on mortgage servicing asset	$	(2.4	)		$	16.1
	-1	Changes in the derivatives utilized as economic hedges to offset changes in fair value of the MSRs.
	Contractual servicing and subservicing fees. Contractual servicing and subservicing fees, including late fees and other ancillary income, for each type of loan serviced are presented below. Contractual servicing fees are included within net return on mortgage servicing asset on the Consolidated Statements of Operations. Contractual subservicing fees including late fees and other ancillary income are included within loan administration income on the Consolidated Statements of Operations. Subservicing fee income is recorded for fees earned, net of third-party subservicing costs, for loans subserviced.
	The following table summarizes income and fees associated with the mortgage loans subserviced.
		Three Months Ended March 31,
		2015				2014
		(Dollars in millions)
	Income on mortgage loans subserviced
	Servicing fees, ancillary income and late fees (1)	$	7.6			$	7.4
	Other servicing charges (1)	(3.3		)		(0.4		)
	Total income on mortgage loans subserviced, included in loan administration	$	4.3			$	7
	-1	Includes the servicing fees, ancillary income and late fees on mortgage loans subserviced, which is included in loan administration income on the Consolidated Statements of Operations.
	The following table presents the unpaid principal balance of residential loans serviced for others and the number of accounts associated with those loans.
		March 31, 2015							December 31, 2014
		Amount				Number of accounts			Amount		Number of accounts
		(Dollars in millions)
	Residential mortgage servicing
	Serviced for others	$	27,046			126,393			$	25,427	117,881
	Subserviced for others (1)	44,708				231,223			46,724		238,498
	Total residential loans serviced for others (1)	$	71,754			357,616			$	72,151	356,379
	-1	Does not include temporary short-term subservicing performed as a result of some sales of servicing.
	The following table summarizes the hypothetical effect on the fair value of servicing rights carried at fair value using adverse changes of 10 percent and 20 percent to the weighted-average of certain significant assumptions used in valuing these assets.
		March 31, 2015									December 31, 2014
					Decline in fair value due to								Decline in fair value due to
		Actual			10% adverse change				20% adverse change		Actual		10% adverse change		20% adverse change
					(Dollars in millions)
	Option adjusted spread	8.76	%		$	272			$	266	8.88	%	$	250	$	243
	Constant prepayment rate	14.86	%		269				262		14.98	%	253		245
	Weighted average cost to service per loan	74.55	%		275				272		74.49	%	258		255
	The sensitivity calculations above are hypothetical and should not be considered to be predictive of future performance. Changes in fair value based on adverse changes in assumptions generally cannot be extrapolated because the relationship of the change in assumption to the change in fair value may not be linear. To isolate the effect of the specified change, the fair value shock analysis is consistent with the identified adverse change, while holding all other assumptions impacting the fair value constant on the fair value of the servicing rights. In practice, changes in one assumption generally impact other assumptions, which may either magnify or counteract the effect of the change.

Derivative_Financial_Instrumen

Derivative Financial Instruments	3 Months Ended
	Mar. 31, 2015
Derivative Instruments and Hedging Activities Disclosure [Abstract]
Derivative Financial Instruments	Derivative Financial Instruments
	Derivative assets and liabilities are recorded at fair value on the Consolidated Statements of Financial Condition, after taking into account the effects of legally enforceable bilateral collateral and master netting agreements. For market traded instruments, gross positive fair values are netted with gross negative fair values by counterparty pursuant to a valid master netting agreement. In addition, collateral received from or paid to a given counterparty are considered in this netting. These agreements allow the Company to settle all derivative contracts held with a single counterparty on a net basis in a single currency, and to offset net derivative positions with related collateral, where applicable.
	Counterparty credit risk. The Bank is exposed to credit loss in the event of nonperformance by the counterparties to its various derivative financial instruments. Should a counterparty fail to perform under the terms of a derivative contract, the Company’s counterparty credit risk is equal to the amount reported as a derivative asset in the Consolidated Statements of Condition. The Company manages this risk by selecting only well-established, financially strong counterparties, spreading the credit risk among such counterparties, and by placing contractual limits on the amount of unsecured credit risk from any single counterparty. Counterparties to the Company's derivatives include major financial institutions with investment grade credit ratings from the major rating agencies.
	Collateral agreements require the counterparty to post, on a daily basis, collateral (typically cash or investment securities) equal to the Company’s net derivative receivable. For highly-rated counterparties, the agreements may include minimum dollar posting thresholds, but allow for the Company to call for immediate, full collateral coverage under circumstances which constitute default under the agreements, which may include the triggering of credit-rating thresholds by counterparties. The Company’s collateral agreements contain provisions that require collateralization of the Company’s net liability derivative positions. Required collateral coverage is based on certain net liability thresholds. Under circumstances which constitute default under the agreements, the counterparties to the derivatives could request immediate full collateral coverage for derivatives in net liability positions. The Company's collateral agreements in which the collateral is restricted include provisions requiring unilateral funding of coverage for derivatives in net liability positions, as well as minimum collateral positions.
	The Company originates loans and extends credit, both of which expose the Company to interest rate risk. The Company actively manages the overall loan portfolio and the associated interest rate risk in a manner consistent with asset quality objectives. This objective is accomplished primarily through the use of an investment-grade diversified dealer-traded basket of swaps. These transactions may generate fee income, and diversify and reduce overall portfolio interest rate risk volatility. Although the Company utilizes swaps for risk management purposes, they are not treated as or do not qualify as hedging instruments.
	The Company hedges the risk of overall changes in fair value of loans held-for-sale and rate lock commitments generally by selling forward contracts on securities of the agencies. The forward contracts used to economically hedge the loan commitments are accounted for as non-designated hedges and naturally offset rate lock commitment mark-to-market gains and losses recognized as a component of gain on loan sale. Additionally, the Company hedges the risk of overall changes in fair value of MSRs through the use of various derivatives including purchases of forward contracts on securities of Fannie Mae and Freddie Mac, the purchase/sale of U.S. Treasury futures contracts and the purchase/sale of euro dollar future contracts. These derivatives are accounted for as non-designated hedges against changes in the fair value of MSRs and recognized as a component of net return on mortgage servicing asset.
	The Company uses a combination of derivatives (U.S. Treasury futures, euro dollar futures, swap futures, and "to be announced" forwards with settlement dates beyond the next regular settlement date for such securities), and certain trading securities to hedge the MSRs. For accounting purposes, these hedges represent economic hedges of the MSR asset with both the hedges and the MSR asset carried at fair value on the balance sheet. Certain derivative strategies that the Company uses to manage its investment in MSRs may not fully offset changes in the fair value of such asset due to changes in interest rates and market liquidity.
	The Company writes and purchases interest rate swaps to accommodate the needs of customers requesting such services. Customer-initiated trading derivatives are used primarily to provide derivative products to customers enabling them to manage interest rate risk exposure. The Company mitigates most of the inherent market risk of customer-initiated interest rate swap contracts by entering into offsetting derivative contracts with other counterparties. The offsetting derivative contracts have nearly identical notional values, terms and indices. The difference in the asset and liability is an adjustment for non-performance risk in the measurement of fair value of derivative instruments, which is insignificant. The Company's interest rate swap agreements are structured such that variable payments are primarily based on LIBOR (one-month, three-month or six-month). Fee income on customer-initiated trading derivatives is earned from entering into various transactions at the request of the customer, primarily interest rate swap contracts. Changes in fair value are recognized in "other noninterest income" on the Consolidated Statements of Operations.
	Fair values of derivative instruments represent the net unrealized gains or losses on such contracts and are recorded in the consolidated balance sheets. Changes in fair value are recognized in the consolidated statements of income. The net gains recognized in income on derivative instruments, net of the impact of offsetting positions, were as follows.
			Three Months Ended March 31,
		Location of Gain/(Loss)	2015				2014
			(Dollars in millions)
	U.S. Treasury and euro dollars futures	Net return on mortgage servicing asset	$	5.9			$	3.1
	Swap futures	Net return on mortgage servicing asset	(0.1		)		—
	Mortgage backed securities forwards	Net return on mortgage servicing asset	2.5				1.8
	Rate lock commitments and forward agency and loan sales	Net gain on loan sales	10.5				(5.6		)
	Interest rate swaps	Other noninterest income	0.1				0.7
	Total derivative gain (loss)		$	18.9			$	—
	The Company had the following derivative financial instruments.
		Notional Amount				Fair Value				Expiration Dates
		(Dollars in millions)
	March 31, 2015
	Assets (1)
	U.S. Treasury and euro dollar futures	$	2,028			$	5			2016-2020
	Mortgage backed securities forwards	150				1				2016
	Rate lock commitments	3,722				55				2016
	Forward agency and loan sales	276				—				2016
	Interest rate swaps	356				7				2016-2021
	Total derivative assets	$	6,532			$	68
	Liabilities (2)
	U.S. Treasury and euro dollar futures	$	468			$	2			2016-2020
	Mortgage backed securities forwards	15				—				2016
	Swap futures	77				1				2030-2035
	Rate lock commitments	80				—				2016
	Forward agency and loan sales	4,050				26				2016
	Interest rate swaps	356				8				2016-2021
	Total derivative liabilities	$	5,046			$	37
	December 31, 2014
	Assets (1)
	U.S. Treasury and euro dollar futures	$	2,530			$	7			2015-2020
	Mortgage backed securities forwards	161				2				2015
	Rate lock commitments	2,604				31				2015
	Forward agency and loan sales	194				—				2015
	Interest rate swaps	355				6				2015-2021
	Total derivative assets	$	5,844			$	46
	Liabilities (2)
	Mortgage servicing rights
	U.S. Treasury and euro dollar futures	$	688			$	1			2015-2020
	Rate lock commitments	22				—				2015
	Forward agency and loan sales	2,789				13				2015
	Interest rate swaps	367				6				2015-2021
	Total derivative liabilities	$	3,866			$	20
	-1	Asset derivatives are included in "other assets" on the Consolidated Statements of Financial Condition.
	-2	Liability derivatives are included in "other liabilities" on the Consolidated Statements of Financial Condition.
	The following tables present the derivatives subject to a master netting arrangement, including the cash pledged as collateral.
		March 31, 2015
												Gross Amounts Not Offset in the Statement of Financial Position
	Economic Undesignated Hedges	Gross Amount				Gross Amounts Offset in the Statement of Financial Position				Net Amount Presented in the Statement of Financial Position		Financial Instruments		Cash Collateral		Net Amount
		(Dollars in millions)
	Assets
	U.S. Treasury swap and euro dollar futures	$	12			$	2			$	10	$	—	$	7	$	3
	Mortgage backed securities forwards	28				—				28		—		27		1
	Interest rate swaps	8				—				8		—		1		7
	Total derivative assets	$	48			$	2			$	46	$	—	$	35	$	11
Liabilities
Interest rate swaps	$	8			$	—			$	8	$	—	$	—	$	8
	December 31, 2014
											Gross Amounts Not Offset in the Statement of Financial Position
Economic Undesignated Hedges	Gross Amount				Gross Amounts Offset in the Statement of Financial Position				Net Amount Presented in the Statement of Financial Position		Financial Instruments		Cash Collateral		Net Amount
	(Dollars in millions)
Assets
U.S. Treasury swap and euro dollar futures	$	17			$	1			$	16	$	—	$	10	$	6
Mortgage backed securities forwards	26				—				26		—		24		2
Interest rate swaps	8				—				8		—		2		6
Total derivative assets	$	51			$	1			$	50	$	—	$	36	$	14
Liabilities
Interest rate swaps	$	6			$	—			$	6	$	—	$	—	$	6
The Company pledged a total of $35 million and $36 million of investment securities and cash collateral to counterparties at March 31, 2015 and December 31, 2014, respectively, for derivative activities. The cash pledged was restricted and is included in other assets on the Consolidated Statements of Financial Condition.

Federal_Home_Loan_Bank_Advance

Federal Home Loan Bank Advances	3 Months Ended
	Mar. 31, 2015
Advances from Federal Home Loan Banks [Abstract]
Federal Home Loan Bank Advances	Federal Home Loan Bank Advances
	The portfolio of Federal Home Loan Bank advances includes floating rate short-term daily adjustable advances and long-term fixed rate advances. The following is a breakdown of the advances outstanding.
		March 31, 2015						December 31, 2014
		Amount			Rate			Amount		Rate
		(Dollars in millions)
	Short-term fixed rate term advances	$	700		0.17	%		$	214	0.26	%
	Long-term fixed rate term advances	925			1.58	%		300		1.36	%
	Total	$	1,625		0.97	%		$	514	0.9	%
	During the three months ended March 31, 2015, the Company entered into longer-term fixed rate advances to provide more stable funding for planned loan growth. At March 31, 2015, the Company had the authority and approval from the Federal Home Loan Bank to utilize a line of credit of up to $7.0 billion and the Company may access that line to the extent that collateral is provided. At March 31, 2015, the Company had $1.6 billion of advances outstanding and an additional $1.5 billion of collateralized borrowing capacity available at the Federal Home Loan Bank. The advances are collateralized by non-delinquent single-family residential first mortgage loans, loans with government guarantees, certain other loans and investment securities.
		Three Months Ended March 31,
		2015			2014
		(Dollars in millions)
	Maximum outstanding at any month end	$	1,625		$	1,125
	Average outstanding balance	1,161			886
	Average remaining borrowing capacity	1,894			1,802
	Weighted-average interest rate	1.08		%	0.24		%
	The following outlines the Company’s Federal Home Loan Bank advance final maturity dates as of March 31, 2015.
		31-Mar-15
		(Dollars in millions)
	2015	$	700
	2016	175
	2017	—
	2018	125
	Thereafter	625
	Total	$	1,625

LongTerm_Debt

Long-Term Debt	3 Months Ended
	Mar. 31, 2015
Debt Disclosure [Abstract]
Long-Term Debt	Long-Term Debt
	The Company sponsored nine trust subsidiaries, including the consolidated VIEs, which issued trust preferred securities to third-party investors and loaned the proceeds to the Company in the form of junior subordinated notes included in long-term debt. Each of the trusts has issued trust preferred securities to third-party investors and loaned the proceeds to the Company in the form of junior subordinated notes, which are included in long-term debt in the Statements of Financial Condition. The notes held by each trust are the sole assets of that trust. Distributions on the trust preferred securities of each trust are payable quarterly at a rate equal to the interest being earned by the trust on the notes held by these trusts.
	The following table presents the carrying value on each junior subordinated note and related interest rates of the long-term debt as of the dates indicated.
		March 31, 2015				December 31, 2014
		(Dollars in millions)
	Trust Preferred Securities
	Floating Three Month LIBOR
	Plus 3.25%, matures 2032	$	26	3.52	%	$	26	3.5	%
	Plus 3.25%, matures 2033	26		3.5	%	26		3.48	%
	Plus 3.25%, matures 2033	26		3.52	%	26		3.51	%
	Plus 2.00%, matures 2035	26		2.25	%	26		2.23	%
	Plus 2.00%, matures 2035	26		2.25	%	26		2.23	%
	Plus 1.75%, matures 2035	50		2.02	%	50		1.99	%
	Plus 1.50%, matures 2035	26		1.75	%	26		1.73	%
	Plus 1.45%, matures 2037	26		1.72	%	26		1.69	%
	Plus 2.50%, matures 2037	15		2.77	%	15		2.74	%
	Subtotal	$	247			$	247
	Notes associated with consolidated VIEs
	Floating One Month LIBOR
	Plus 0.46% (1), matures 2018 (3)	31				42
	Plus 0.16% (2), matures 2019 (4)	39				42
	Total long-term debt	$	317			$	331
	-1	The Notes will accrue interest at a rate equal to the least of (i) one-month LIBOR plus 0.46 percent (ii) the net weighted average coupon, and (iii) 16.00 percent.
	-2	The interest rate for the notes may adjust monthly and will be subject to (i) a cap based on the weighted average of the loan rates on the mortgage loans, minus the rates at which certain fees and expenses of the issuing entity are calculated and minus any required spread and adjusted for actual days and (ii) a fixed cap of 16.00 percent.
	-3	The par value for the debt was $31 million and $43 million, respectively, at March 31, 2015 and December 31, 2014.
	-4	The par value for the debt was $41 million and $45 million, respectively, at March 31, 2015 and December 31, 2014.
	At March 31, 2015 and December 31, 2014 the three-month LIBOR interest rate was 0.27 percent and 0.26 percent, respectively. At March 31, 2015 the one-month LIBOR interest rate was 0.18 percent, compared to 0.17 percent at December 31, 2014.
	Trust Preferred Securities
	The trust preferred securities outstanding are callable by the Company and are junior subordinated notes. Under the terms of the related indentures interest is payable quarterly; however, the Company may defer interest payments for up to 20 quarters without default or penalty. In January 2012, the Company exercised its contractual rights to defer its interest payments with respect to trust preferred securities. The payments are periodically evaluated and will be reinstated when appropriate, subject to the provisions of the Company's Supervisory Agreement and Consent Order. At March 31, 2015, the Company has deferred for 13 quarters and has $22 million accrued for these deferred interest payments.
	Notes Associated with Consolidated VIEs
	As previously discussed in Note 6 of the Notes to the Consolidated Financial Statements, herein, the Company determined it was the primary beneficiary of VIEs associated with HELOC securitizations and such VIEs are therefore consolidated in the Consolidated Financial Statements. As of June 30, 2013, the Company reconsolidated the assets and liabilities associated with the HELOC securitization trusts, the proceeds of which are used by the trust to repay outstanding debt.
	The Company has elected the fair value option for these liabilities and changes in fair value are recorded to "other noninterest income" on the Consolidated Statements of Operations. Fair value is estimated using quantitative models which incorporate observable and, in some instances, unobservable inputs including security prices, interest rate yield curves, option volatility, currency, commodity or equity rates, and correlations between these inputs. The Company also considers the impact of its own observable credit spreads in the secondary bond markets in determining the discount rate used to value these liabilities. See Note 17 of the Notes to the Consolidated Financial Statements, herein, for additional recurring fair value disclosures.
	The final legal maturities of the long-term debt associated with the VIEs are June 2018 and June 2019, respectively; however these debt agreements have contractual provisions that allow for a clean-up call of the debt when less than 10 percent of the balance remains outstanding. As of March 31, 2015, FSTAR 2005-1 (LIBOR plus 0.46 percent) is currently below the 10 percent threshold and FSTAR 2006-2 (LIBOR plus 0.16 percent) is expected to be below the threshold near the end of 2015. The debt pays interest based on a spread over the 30-day LIBOR interest rate.

Representation_and_Warranty_Re

Representation and Warranty Reserve	3 Months Ended
	Mar. 31, 2015
Representation and Warranty Reserve Disclosures [Abstract]
Representation and Warranty Reserve	Representation and Warranty Reserve
	The following table shows the activity in the representation and warranty reserve.
			Three Months Ended March 31,
			2015			2014
			(Dollars in millions)
	Balance, beginning of period		$	53		$	54
	Provision
		Charged to gain on sale for current loan sales	1.9			1.2
		Charged to representation and warranty reserve - change in estimate	(1.5		)	(1.7		)
		Total	0.4			(0.5		)
	Charge-offs, net		(0.4		)	(5.5		)
	Balance, end of period		$	53		$	48
	At the time a loan is sold, an estimate of the fair value of such loss associated with the mortgage loans is recorded in the representation and warranty reserve in the Consolidated Statements of Financial Condition and charged against the net gain on loan sales in the Consolidated Statements of Operations. Subsequent to the sale, the liability is re-measured on an ongoing basis based on an estimate of probable future losses. Changes in the estimate are recorded in the representation and warranty provision on the Consolidated Statements of Operations. Charge-offs are recorded in representation and warranty reserve on the Consolidated Statements of Financial Condition.

Stockholders_Equity

Stockholders' Equity	3 Months Ended
	Mar. 31, 2015
Stockholders' Equity Note [Abstract]
Stockholders' Equity	Stockholders’ Equity
	Preferred Stock and Other Warrants
	On January 30, 2009, the Company sold to the U.S. Treasury 266,657 shares of Series C fixed rate cumulative non-convertible perpetual preferred stock ("Series C Preferred Stock") and a warrant to purchase up to approximately 0.7 million shares of Common Stock at an exercise price of $62.00 per share (the "Warrant") for $266.7 million. The issuance and the sale of the Series C Preferred Stock and Warrant were exempt from the registration requirements of the Securities Act of 1933, as amended. The Series C Preferred Stock qualifies as Tier 1 capital and currently pays cumulative dividends quarterly at a rate of 9 percent per annum. The Warrant is exercisable through 2019.
	In 2013 the U.S. Treasury sold the Series C Preferred Stock and Warrants which are now held by unrelated third-party investors and are no longer held by the U.S. government under the TARP Capital Purchase Program. The warrants are valued utilizing the equity method. At March 31, 2015 and December 31, 2014, the Company’s warrant value was $5 million and $6 million, respectively.
	Preferred stock with a par value of $0.01 and a liquidation value of $1,000 and additional paid in capital attributable to preferred stock at March 31, 2015 is summarized as follows.
		Rate			Earliest	Shares	Preferred		Additional
					Redemption Date	Outstanding	Shares		Paid in
									Capital
		(Dollars in millions)
	Series C Preferred Stock	9	%		January 31, 2012	266,657	$	3	$	266.7
	At March 31, 2015, the Company has deferred $63.5 million of dividend payments on the Series C Preferred Stock.
	Accumulated Other Comprehensive Income (Loss)
	The following table sets forth the components in accumulated other comprehensive income (loss) for available-for-sale securities.
		Available-for-Sale Securities
		(Dollars in millions)
	Accumulated other comprehensive income (loss)
	Balance at December 31, 2014, net of tax	$	8.4
	Net unrealized gain (loss), net of tax	14.9
	Balance at March 31, 2015, net of tax (1)	$	23.3
	Balance at December 31, 2013, net of tax	$	(4.8	)
	Net unrealized gain (loss), net of tax	3.9
	Net realized (loss) gains reclassified into earnings, net of tax	(0.2		)
	Balance at March 31, 2014, net of tax	$	(1.1	)
	-1	For the period ended March 31, 2015, there were no reclassifications out of accumulated other comprehensive income (loss) into earnings.

Earnings_Loss_Per_Share

Earnings (Loss) Per Share	3 Months Ended
	Mar. 31, 2015
Earnings Per Share [Abstract]
Earnings (Loss) Per Share	Earnings (Loss) Per Share
	Basic earnings (loss) per share, excluding dilution, are computed by dividing (loss) earnings available to common stockholders by the weighted average number of shares of common stock outstanding during the period. Diluted (loss) earnings per share reflect the potential dilution that could occur if securities or other contracts to issue common stock were exercised and converted into common stock or resulted in the issuance of common stock that could then share in the earnings of the Company.
	The following table sets forth the computation of basic and diluted (loss) earnings per share of common stock.
		Three Months Ended March 31,
		2015			2014
		(Dollars in millions, except share data)
	Net income (loss)	$	31.5		$	(78.4	)
	Less: preferred stock dividend/accretion	—			(0.5		)
	Net income (loss) from continuing operations	31.5			(78.9		)
	Deferred cumulative preferred stock dividends	(7.3		)	(5.7		)
	Net income (loss) applicable to common stock	$	24.2		$	(84.6	)
	Weighted average shares
	Weighted average common shares outstanding	56,385,454			56,194,184
	Effect of dilutive securities
	Warrants	232,474			—
	Stock-based awards	157,111			—
	Weighted average diluted common shares	56,775,039			56,194,184
	Earnings (loss) per common share
	Net income (loss) applicable to common stock	$	0.43		$	(1.51	)
	Effect of dilutive securities
	Warrants	—			—
	Stock-based awards	—			—
	Diluted earnings (loss) per share	$	0.43		$	(1.51	)
	The March 31, 2014 diluted loss per share calculation excludes all common stock equivalents, including 1,334,045 shares pertaining to warrants and 295,179 shares pertaining to stock based awards. The inclusion of these securities would be anti-dilutive.
	Under the terms of the Series C Preferred Stock the Company may defer dividend payments. The Company elected to defer dividend payments beginning with the February 2012 dividend. Although not included in quarterly net income, the deferral impacts net income (loss) applicable to common stock for the purpose of calculating earnings per share, as shown above. The cumulative amount in arrears as of March 31, 2015 is $63.5 million.

Income_Taxes

Income Taxes	3 Months Ended
	Mar. 31, 2015
Income Tax Disclosure [Abstract]
Income Taxes	Income Taxes
	The provision for income taxes in interim periods requires the Company to make a best estimate of the effective tax rate expected to be applicable for the full year. This estimated effective tax rate is then applied to interim consolidated pre-tax operating income to determine the interim provision for income taxes.
	During the three months ended March 31, 2015, the provision for income taxes was $18.2 million, or an effective tax provision rate of 36.6 percent, compared to a benefit for income taxes of $40.0 million, or an effective tax benefit rate of 33.8 percent for the three months ended March 31, 2014. The effective rate for the three months ended March 31, 2015 and March 31, 2014 differs from the combined federal and state statutory tax rate due to non-taxable income and expense items, primarily the non-taxable impact of changes related to our warrants.
	As of each reporting date, the Company considers both positive and negative evidence that could impact the view with regard to realization of deferred tax assets. The Company continues to believe it is more likely than not that the benefit for federal deferred tax assets will be realized. The Company continues to believe it is more likely than not that the benefit for certain state deferred tax assets will not be realized. In recognition of this risk, the Company continues to provide a partial valuation allowance on the deferred tax assets relating to state deferred tax assets.
	The Company believes that it is unlikely that the unrecognized tax benefits will change by a material amount during the next 12 months. As permitted under applicable accounting guidance for income taxes, the Company recognizes interest and penalties related to unrecognized tax benefits in income tax expense.

Regulatory_Matters

Regulatory Matters	3 Months Ended
	Mar. 31, 2015
Regulatory Capital Requirements [Abstract]
Regulatory Matters	Regulatory Matters
	Regulatory Capital
	Under capital adequacy guidelines and the regulatory framework for prompt corrective action, the Company and the Bank must meet specific capital guidelines that involve quantitative measures of the Bank’s assets, liabilities, and certain off-balance sheet items as calculated under regulatory accounting practices. The Bank’s capital amounts and classifications are also subject to qualitative judgments by regulators about components, risk weightings, and other factors. Failure to meet minimum capital requirements can initiate certain mandatory, and possibly additional discretionary actions by regulators that could have a material effect on the Consolidated Financial Statements. On January 1, 2015, the Basel III rules became effective and include transition provisions through 2018. Under Basel III, Total capital consists of two tiers of capital, Tier 1 and Tier 2. Tier 1 Capital is further composed of Common Equity Tier 1 Capital and additional Tier 1 Capital.
	To be categorized as "well capitalized," the Company and the Bank must maintain minimum Tangible capital, Tier 1 capital, Common Equity Tier 1, and Total capital ratios as set forth in the table below. The Company and the Bank are considered "well capitalized" at both March 31, 2015 and December 31, 2014. There have been no conditions or events that management believes have changed the Company's or the Bank’s category.
	The following table shows the regulatory capital ratios as of the dates indicated.
	Bancorp	Actual				For Capital Adequacy Purposes				Well Capitalized Under Prompt Corrective Action Provisions
		Amount		Ratio		Amount		Ratio		Amount		Ratio
		(Dollars in millions)
	31-Mar-15
	Tangible capital (to tangible assets)	$	1,257	12.02	%	N/A		N/A		N/A		N/A
	Tier 1 capital (to adjusted tangible assets)	1,257		12.02	%	$	418	4	%	$	523	5	%
	Common equity Tier 1 capital (to RWA)	909		15.38	%	266		4.5	%	384		6.5	%
	Tier 1 capital (to risk weighted assets)	1,257		21.26	%	355		6	%	473		8	%
	Total capital (to risk weighted assets)	1,336		22.61	%	473		8	%	591		10	%
	31-Dec-14
	Tangible capital (to tangible assets)	$	1,184	12.59	%	N/A		N/A		N/A		N/A
	Tier 1 capital (to adjusted tangible assets)	1,184		12.59	%	$	376	4	%	$	470	5	%
	Tier 1 capital (to risk weighted assets)	1,184		22.81	%	208		4	%	311		6	%
	Total capital (to risk weighted assets)	1,252		24.12	%	415		8	%	519		10	%
	N/A - Not applicable.
	-1	On January 1, 2015, the Basel III rules became effective, subject to transition provisions primarily related to regulatory deductions and adjustments impacting common equity Tier 1 capital and Tier 1 capital. The Company and the Bank reported under Basel I (which included the Market Risk Final Rules) at December 31, 2014.
	Bank	Actual				For Capital Adequacy Purposes				Well Capitalized Under Prompt Corrective Action Provisions
		Amount		Ratio		Amount		Ratio		Amount		Ratio
		(Dollars in millions)
	31-Mar-15
	Tangible capital (to tangible assets)	$	1,278	12.21	%	N/A		N/A		N/A		N/A
	Tier 1 capital (to adjusted tangible assets)	1,278		12.21	%	$	419	4	%	$	524	5	%
	Common equity tier 1 capital (to RWA)	1,278		21.58	%	267		4.5	%	385		6.5	%
	Tier 1 capital (to risk weighted assets)	1,278		21.58	%	356		6	%	474		8	%
	Total capital (to risk weighted assets)	1,357		22.91	%	474		8	%	593		10	%
	31-Dec-14
	Tangible capital (to tangible assets)	$	1,167	12.43	%	N/A		N/A		N/A		N/A
	Tier 1 capital (to adjusted tangible assets)	1,167		12.43	%	$	376	4	%	$	470	5	%
	Tier 1 capital (to risk weighted assets)	1,167		22.54	%	207		4	%	311		6	%
	Total capital (to risk weighted assets)	1,235		23.85	%	414		8	%	518		10	%
	-1	On January 1, 2015, the Basel III rules became effective, subject to transition provisions primarily related to regulatory deductions and adjustments impacting common equity Tier 1 capital and Tier 1 capital. The Company and the Bank reported under Basel I (which included the Market Risk Final Rules) at December 31, 2014.

Legal_Proceedings_Contingencie

Legal Proceedings, Contingencies and Commitments	3 Months Ended
	Mar. 31, 2015
Commitments and Contingencies Disclosure [Abstract]
Legal Proceedings, Contingencies and Commitments	Legal Proceedings, Contingencies and Commitments
	On at least a quarterly basis, the Company assesses the liabilities and loss contingencies in connection with pending or threatened legal and regulatory proceedings utilizing the latest information available. The Company establishes accruals for legal claims and regulatory matters when the Company believes it is probable that a loss may be incurred and that the amount of such loss can be reasonably estimated. Once established, litigation accruals are adjusted from time to time, as appropriate, in light of additional information. Management does not believe that the amount of any reasonably possible losses in excess of any amounts accrued with respect to ongoing proceedings or any other known claims, including the matters described below will be material to the Company’s financial statements. Management does not believe that the ultimate disposition of the proceedings will have a material adverse effect on the Company’s operations or financial condition taken as a whole.
	Legal Proceedings
	The Company and certain subsidiaries are subject to various pending or threatened legal proceedings arising out of the normal course of business or operations. On the basis of information currently available, advice of counsel, available insurance coverage, and established reserves, it is the opinion of management that the eventual outcome of the current actions against us will not have a material adverse effect on our consolidated financial condition, results of operations, or cash flows. However, it is possible that the ultimate resolution of legal matters, if unfavorable, may be material to our consolidated financial condition, results of operations, or cash flows in a particular period.
	From time to time, governmental agencies conduct investigations or examinations of various mortgage related practices of the Bank. In the course of such investigations or examinations, the Bank cooperates with such agencies and provides information as requested. In addition, the Bank is routinely named in civil actions throughout the country by borrowers and former borrowers relating to the origination, purchase, sale, and servicing of mortgage loans. The Bank does not believe that the ultimate outcome of these actions will have a material adverse effect on its financial condition, results of operations or cash flows.
	The Company is currently a defendant in a shareholder derivative lawsuit filed in 2013 which focuses on the events leading up to the Company's 2012 DOJ litigation settlement as well as the settlement itself. The lawsuit alleges breaches of fiduciary duties and unjust enrichment by several current and former members of the Company's board of directors and executive officers and requests unspecified monetary damages.
	DOJ litigation settlement
	Per the February 2012 DOJ litigation settlement, the Company is required to make future additional payments of approximately $118 million contingent upon the occurrence of certain future events. The Company elected the fair value option to account for this liability and uses a weighted discounted cash flow model to measure fair value. The fair value of the DOJ litigation settlement liability was $82 million at both March 31, 2015 and December 31, 2014, using a discount rate of 7.9 percent and 8.7 percent at March 31, 2015 and December 31, 2014, respectively. The undiscounted amount of the DOJ litigation settlement liability remains at $118 million at March 31, 2015.
	The DOJ litigation settlement does not have any effect on FHA insured loans in the Company's portfolio, including loans classified as loans with government guarantees as discussed in Note 4 to the Consolidated Financial Statements, herein.
	Litigation Accruals
	As of March 31, 2015 and December 31, 2014, the Company's total accrual for contingent liabilities was $85 million and $86 million, respectively, including the legal proceedings and fair value liability relating to the DOJ litigation settlement.
	Commitments
	A summary of the contractual amount of significant commitments is as follows.
		March 31, 2015		December 31, 2014
		(Dollars in millions)
	Commitments to extend credit
	Mortgage loans (interest-rate lock commitments)	$	3,953	$	2,172
	HELOC trust commitments	101		88
	Other consumer commitments	9		7
	Warehouse loan commitments	663		827
	Standby and commercial letters of credit	10		10
	Other commercial commitments	491		445
	Commitments to extend credit are agreements to lend. Since many of these commitments expire without being drawn upon, the total commitment amounts do not necessarily represent future cash flow requirements.
	The Company enters into mortgage interest-rate lock commitments with its customers. These commitments are considered to be derivative instruments and changes in the fair value of these commitments are recorded in the Consolidated Statements of Financial Condition as an other asset. Further discussion on derivative instruments is included in Note 8 - Derivative Financial Instruments.
	The Company has unfunded commitments under its contractual arrangement with the HELOC securitization trusts to fund future advances on the underlying HELOC. Refer to further discussion of this issue as presented in Note 6 of the Notes to the Consolidated Financial Statements, herein.
	Standby and commercial letters of credit are conditional commitments issued to guarantee the performance of a customer to a third party. Standby letters of credit generally are contingent upon the failure of the customer to perform according to the terms of the underlying contract with the third party, while commercial letters of credit are issued specifically to facilitate commerce and typically result in the commitment being drawn on when the underlying transaction is consummated between the customer and the third party.
	These instruments involve, to varying degrees, elements of credit and interest rate risk beyond the amount recognized on the Consolidated Statements of Financial Condition. The contractual amounts of those instruments reflect the extent of involvement the Company has in particular classes of financial instruments. The Company's exposure to credit losses in the event of nonperformance by the other party to the financial instrument for commitments to extend credit and standby letters of credit is represented by the contractual amount of those instruments. The Company utilizes the same credit policies in making commitments and conditional obligations as it does for balance sheet instruments. Commitments to extend credit are agreements to lend to a customer as long as there is not a violation of any condition established in the contract.
	Commitments generally have fixed expiration dates or other termination clauses and may require payment of a fee. The Company evaluates each customer's credit worthiness on a case-by-case basis. The amount of collateral obtained, if deemed necessary by the Company, upon extension of credit is based on management's credit evaluation of the counterparties.
	The Company maintains a reserve for letters of credit which is included in other liabilities, which represents the estimate for probable credit losses inherent in unfunded commitments to extend credit. Unfunded commitments to extend credit include unfunded loans with available balances, new commitments to lend that are not yet funded, and standby and commercial letters of credit. The balance of $1 million for both March 31, 2015 and December 31, 2014, is reflected in other liabilities on the Consolidated Statements of Financial Condition.

Fair_Value_Measurements

Fair Value Measurements	3 Months Ended
	Mar. 31, 2015
Fair Value Disclosures [Abstract]
Fair Value Measurements	Fair Value Measurements
	The Company utilizes fair value measurements to record certain assets and liabilities at fair value.
	Valuation Hierarchy
	U.S. GAAP establishes a three-level valuation hierarchy for disclosure of fair value measurements. The hierarchy is based on the transparency of the inputs used in the valuation process with the highest priority given to quoted prices available in active markets and the lowest priority to unobservable inputs where no active market exists, as discussed below.
	Level 1 - Quoted prices (unadjusted) for identical assets or liabilities in active markets in which the Company can participate as of the measurement date;
	Level 2 - Quoted prices for similar instruments in active markets, and other inputs that are observable for the asset or liability, either directly or indirectly, for substantially the full term of the financial instrument; and
	Level 3 - Unobservable inputs that reflect the Company's own assumptions about the assumptions that market participants would use in pricing an asset or liability.
	A financial instrument's categorization within the valuation hierarchy is based upon the lowest level of input within the valuation hierarchy that is significant to the overall fair value measurement. Transfers between levels of the fair value hierarchy are recognized at the end of the reporting period.
	The following is 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.
	Assets
	Investment securities available-for-sale. These securities are comprised of U.S. government sponsored agencies and municipal obligations. The Company measures fair value using prices obtained from pricing services. A review is performed on the security prices received from the pricing services, which includes discussion and analysis of the inputs used by the pricing services to value our securities. Where possible, fair values are generated using market inputs including quoted prices (the closing price in an exchange market), bid prices (the price at which a buyer stands ready to purchase) and other market information. For fixed income securities that are not actively traded, the pricing services use alternative methods to determine fair value for the securities, including; quotes for similar fixed-income securities, matrix pricing, discounted cash flow using benchmark curves or other factors to determine fair value. U.S. government sponsored agency mortgage backed securities are classified within level 2 of the valuation hierarchy, U.S. government sponsored collateralized mortgage obligation securities are classified within level 2 of the valuation hierarchy and all other debt securities are classified within level 3 of the valuation hierarchy.
	Loans held-for-sale. The Company generally estimates the fair value of loans held-for-sale based on quoted market prices for securities backed by similar types of loans. Where quoted market prices were available, such market prices were utilized as estimates for fair values. Otherwise, the fair value of loans was computed by discounting cash flows using observable inputs inclusive of interest rates, prepayment speeds and loss assumptions for similar collateral. These loans are classified as level 2.
	Loans held-for-investment. Loans held-for-investment are generally recorded at amortized cost. The Company does not record these loans at fair value on a recurring basis. However, from time to time, a loan becomes impaired when it is probable that payment of interest and principal will not be made in accordance with the contractual terms of the loan agreement. Once a loan is identified as impaired, the fair value of the impaired loan is estimated using one of several methods, including collateral value, market value of similar debt, or discounted cash flows. The fair value of the underlying collateral is determined, where possible, using market prices derived from appraisals or broker price opinions which are considered to be level 3. Fair value may also be measured using the present value of expected cash flows discounted at the loan's effective interest rate. The Company records the impaired loans as a non-recurring level 3 valuation.
	Loans held-for-investment that are recorded at fair value on a recurring basis are loans that were previously recorded as loans held-for-sale but subsequently transferred to the held-for-investment category. As the Company selected the fair value option for the held-for-sale loans, they continue to be reported at fair value and measured consistent with the level 2 methodology for loans held-for-sale.
	The HELOC loans associated with the FSTAR 2005-1 and FSTAR 2006-2 securitization trusts have been recorded in the Consolidated Financial Statement as loans held-for-investment at fair value. The Company records these loans as a recurring level 3 valuation.
	Also included in loans held-for-investment are the second mortgage loans associated with the previous FSTAR 2006-1 mortgage securitization trust. The loans are carried at fair value and valued using a discounted estimated net future cash flow model and therefore classified within the level 3 valuation hierarchy as the model utilizes significant inputs which are unobservable. See Note 6 - Variable Interest Entities ("VIEs") for additional information.
	Repossessed assets. Repossessed assets are measured and reported at fair value through a charge-off to the allowance for loan losses based upon the fair value of the repossessed asset. The fair value of repossessed assets, upon initial recognition, are estimated using level 3 inputs based on customized discounting criteria. The significant unobservable inputs used in the level 3 fair value measurements of the Company's impaired loans and repossessed assets primarily relate to internal valuations or analysis.
	Mortgage Servicing Rights ("MSRs"). The current market for MSRs is not sufficiently liquid to provide participants with quoted market prices. Therefore, the Company uses an option-adjusted spread valuation approach to determine the fair value of MSRs. This approach consists of projecting servicing cash flows under multiple interest rate scenarios and discounting these cash flows using risk-adjusted discount rates. The key assumptions used in the valuation of MSRs include mortgage prepayment speeds and discount rates. Management obtains third-party valuations of the MSR portfolio on a quarterly basis from independent valuation experts to assess the reasonableness of the fair value calculated by its internal valuation model. In certain circumstances, based on the probability of the completion of a sale of MSRs pursuant to a bona-fide purchase offer, the Company considers the bid price of that offer and identifiable transaction costs in comparison to the calculated fair value and may adjust the estimate of fair value to reflect the terms of the pending transaction. Due to the nature of the valuation inputs, MSRs are classified within level 3 of the valuation hierarchy.
	Other investments. The fair value of the reverse repurchase agreement is determined by cost, which approximates the fair value. The reverse repurchase agreement is guaranteed by a third party and secured by government and agency securities, which are held by a third party. In case of default, the Company would receive the collateral from the third party. The reverse repurchase agreement is included in other assets on the Consolidated Statements of Financial Condition.
	Derivative financial instruments. Certain classes of derivative contracts are listed on an exchange and are actively traded, and they are therefore classified within level 1 of the valuation hierarchy. These include U.S. Treasury futures and U.S. Treasury options. The Company's forward loan sale commitments and interest rate swaps are valued based on quoted prices for similar assets in an active market with inputs that are observable and are classified within level 2 of the valuation hierarchy. Rate lock commitments are valued using internal models with significant unobservable market parameters and therefore are classified within level 3 of the valuation hierarchy. The Company assessed the significance of the impact of the credit valuation adjustments on the overall valuation of its derivative positions and determined that the credit valuation adjustments were not significant to the overall valuation of its derivatives. The derivatives are reported in either other assets or other liabilities on the Consolidated Statements of Financial Condition.
	Liabilities
	Warrants. Warrant liabilities are valued using a binomial lattice model and are classified within level 2 of the valuation hierarchy. Significant observable inputs include expected volatility, a risk free rate and an expected life. Warrant liabilities are reported in "other liabilities" on the Consolidated Statements of Financial Condition.
	Long-term debt. The Company records the long-term debt associated with the FSTAR 2005-1 and FSTAR 2006-2 HELOC securitization trusts at fair value. The fair value of the debt is estimated using quantitative models which incorporate observable and, in some instances, unobservable inputs including security prices, interest rate yield curves, option volatility, currency, commodity or equity rates and correlations between these inputs. The Company also considers the impact of its own credit spreads in determining the discount rate used to value these liabilities. The credit spread is determined by reference to observable spreads in the secondary bond markets, which are considered to be level 3. The Company records this debt as a recurring level 3 valuation.
	Litigation settlement. Upon settlement of the DOJ litigation settlement, we elected the fair value option to account for the liability representing the remaining future payments. As of March 31, 2015 the remaining future payments totaled $118 million for which we use a discounted cash flow model to determine the current fair value. The model utilizes our forecast and considers multiple scenarios and possible outcomes that impact the timing of the additional payments which are discounted using a risk free rate adjusted for nonperformance risk that represents our credit risk. These scenarios are probability weighted and consider the view of an independent market participant to estimate the most likely fair value of the liability.
	The liability is classified within level 3 of the valuation hierarchy as the projections of earnings and growth rate assumptions are unobservable inputs which affect the estimated timing of the cash flow payments. The Company considers factors which could affect those projections from the perspective of a market participant, which is incorporated into the assessment of fair value. The litigation settlement is included in other liabilities on the Consolidated Financial Statements and changes in the fair value of the litigation settlement will be recorded each quarter in other noninterest expense on the Consolidated Statements of Operations.
	Assets and liabilities measured at fair value on a recurring basis
	The following tables present the financial instruments carried at fair value as of March 31, 2015 and December 31, 2014, by caption on the Consolidated Statement of Financial Condition and by level in the valuation hierarchy (as described above).
		Level 1				Level 2				Level 3				Total  Fair
														Value
	March 31, 2015	(Dollars in millions)
	Investment securities available-for-sale
	Agency	$	—			$	1,280			$	—			$	1,280
	Agency-collateralized mortgage obligations	—				1,015				—				1,015
	Loans held-for-sale
	Residential first mortgage loans	—				2,044				—				2,044
	Loans held-for-investment
	Residential first mortgage loans	—				26				—				26
	Second mortgage loans	—				—				50				50
	HELOC loans	—				—				113				113
	Mortgage servicing rights	—				—				279				279
	Derivative assets
	Rate lock commitments	—				—				55				55
	U.S. Treasury and euro dollar futures	3				—				—				3
	Mortgage backed securities forwards	1				—				—				1
	Interest rate swaps	—				7				—				7
	Total derivative assets	4				7				55				66
	Other investments	—				—				100				100
	Total assets at fair value	$	4			$	4,372			$	597			$	4,973
	Derivative liabilities
	Forward agency and loans sales	$	—			$	(26	)		$	—			$	(26	)
	Swap futures	(1		)		—				—				(1		)
	Interest rate swaps	—				(8		)		—				(8		)
	Total derivative liabilities	(1		)		(34		)		—				(35		)
	Warrant liabilities	—				(5		)		—				(5		)
	Long-term debt	—				—				(70		)		(70		)
	DOJ litigation settlement	—				—				(82		)		(82		)
	Total liabilities at fair value	$	(1	)		$	(39	)		$	(152	)		$	(192	)
		Level 1				Level 2				Level 3				Total  Fair
														Value
	December 31, 2014	(Dollars in millions)
	Investment securities available-for-sale
	Agency	$	—			$	389			$	—			$	389
	Agency-collateralized mortgage obligations	—				1,281				—				1,281
	Municipal obligations	—				—				2				2
Loans held-for-sale
Residential first mortgage loans	—				1,196				—				1,196
Loans held-for-investment
Residential first mortgage loans	—				26				—				26
Second mortgage loans	—				—				53				53
HELOC loans	—				—				132				132
Mortgage servicing rights	—				—				258				258
Derivative assets
U.S. Treasury and euro dollar futures	7				—				—				7
Rate lock commitments	—				—				31				31
Mortgage backed securities forwards	2				—				—				2
Interest rate swaps	—				6				—				6
Total derivative assets	9				6				31				46
Other investments	—				—				100				100
Total assets at fair value	$	9			$	2,898			$	576			$	3,483
Derivative liabilities
Forward agency and loan sales	$	—			$	(13	)		$	—			(13		)
U.S. Treasury and euro dollar futures	(1		)		—				—				(1		)
Interest rate swaps	—				(6		)		—				(6		)
Total derivative liabilities	(1		)		(19		)		—				(20		)
Warrant liabilities	—				(6		)		—				(6		)
Long-term debt	—				—				(84		)		(84		)
DOJ litigation settlement	—				—				(82		)		(82		)
Total liabilities at fair value	$	(1	)		$	(25	)		$	(166	)		$	(192	)
The Company had no transfers of assets or liabilities recorded at fair value between fair value levels during the three months ended March 31, 2015 and 2014.
A determination to classify a financial instrument within level 3 of the valuation hierarchy is based upon the significance of the unobservable inputs to the overall fair value measurement. The Company manages the risk associated with the observable components of level 3 financial instruments using securities and derivative positions that are classified within level 1 or level 2 of the valuation hierarchy. If the market for an instrument becomes more liquid or active and pricing models become available which allow for readily observable inputs, the Company will transfer the instruments from level 3 to level 2 valuation hierarchy. The assets and/or liabilities transferred are valued at the end of the period. Gains and losses in the tables do not reflect the effect of the Company's risk management activities related to such level 3 instruments.
Fair value measurements using significant unobservable inputs
The tables below include a roll forward of the Consolidated Statement of Financial Condition amounts for the three months ended March 31, 2015 and 2014 (including the change in fair value) for financial instruments classified by the Company within level 3 of the valuation hierarchy.
				Recorded in Earnings						Recorded in OCI
Three Months Ended March 31, 2015	Balance at			Total Unrealized Gains / (Losses)			Total Realized Gains / (Losses)			Total Unrealized Gains / (Losses)			Purchases			Sales			Settlements			Balance at			Changes in Unrealized Gains / (Losses) Held at End of Period (3)
	Beginning of																					End of
	Period																					Period
Assets	(Dollars in millions)
Other investments	$	100		$	—		$	—		$	—		$	—		$	—		$	—		$	100		$	—
Investment securities available-for-sale (1)(2)
Municipal obligation	2			—			—			—			—			—			(2.0		)	—			—
Loans held-for-investment
Second mortgage loans	53.1			—			0.4			—			—			—			(3.1		)	50.4			(0.1		)
HELOC loans	131.6			(4.1		)	(0.3		)	—			—			—			(14.7		)	112.5			(1.6		)
Mortgage servicing rights	257.8			(25.5		)	—			—			67.9			(21.6		)	—			278.6			(7.7		)
Totals	$	544.5		$	(29.6	)	$	0.1		$	—		$	67.9		$	(21.6	)	$	(19.8	)	$	541.5		$	(9.4	)
Liabilities
Long-term debt	$	(83.8	)	$	—		$	(1.5	)	$	—		$	—		$	—		$	15.5		$	(69.8	)	$	—
DOJ litigation settlement	(81.6		)	0.1			—			—			—			—			—			(81.5		)	—
Totals	$	(165.4	)	$	0.1		$	(1.5	)	$	—		$	—		$	—		$	15.5		$	(151.3	)	$	—
Derivative financial instruments (net)
Rate lock commitments	$	30.7		$	37.3		$	—		$	—		$	97.9		$	(97.0	)	$	(14.4	)	$	54.5		$	17.2
Totals	$	30.7		$	37.3		$	—		$	—		$	97.9		$	(97.0	)	$	(14.4	)	$	54.5		$	17.2
Three Months Ended March 31, 2014
Loans held-for-investment
Second mortgage loans	$	64.7		$	(0.4	)	$	0.4		$	—		$	—		$	—		$	(3.2	)	$	61.5		$	—
HELOC loans	155			(1.9		)	1.5			—			0.1			—			(4.0		)	150.7			7.3
Mortgage servicing rights	284.7			(9.6		)	—			—			51			(5.9		)	—			320.2			(4.1		)
Derivative financial instruments
Rate lock commitments	10.3			33			—			—			59.1			(64.9		)	(16.2		)	21.3			(0.6		)
Totals	$	514.7		$	21.1		$	1.9		$	—		$	110.2		$	(70.8	)	$	(23.4	)	$	553.7		$	2.6
Liabilities
Long-term debt	$	(105.8	)	$	—		$	(1.3	)	$	—		$	—		$	—		$	5.4		$	(101.7	)	$	1.3
DOJ litigation settlement	(93.0		)	—			(1.0		)	—			—			—			—			(94.0		)	—
Totals	$	(198.8	)	$	—		$	(2.3	)	$	—		$	—		$	—		$	5.4		$	(195.7	)	$	1.3
-1	Realized gains (losses), including unrealized losses deemed other-than-temporary and related to credit issues, are reported in noninterest income.
-2	U.S. government agency investment securities available-for-sale are valued predominantly using quoted broker/dealer prices with adjustments to reflect for any assumptions a willing market participant would include in its valuation. Non-agency CMOs classified as available-for-sale are valued using internal valuation models and pricing information from third parties.
-3	Reflects the changes in the unrealized gains (losses) related to financial instruments held at the end of the period.
The following tables present the quantitative information about recurring level 3 fair value financial instruments and the fair value measurements as of March 31, 2015 and December 31, 2014.
	Fair Value			Valuation Technique	Unobservable Input	Range (Weighted Average)
March 31, 2015	(Dollars in millions)
Assets
Second mortgage loans	$	50		Discounted cash flows	Discount rate	7.2% - 10.8% (9.0%)
					Prepay rate - 12 month historical average	9.3% - 13.9% (11.6%)
					CDR rate - 12 month historical average	2.4% - 3.6% (3.0%)
HELOC loans	$	112		Discounted cash flows	Yield	8.2% - 12.3% (10.2%)
					Weighted average life (CPR)	13.1% - 19.7% (16.4%)
					Weighted average life (CDR)	16.7% - 25.0% (20.8%)
					Discount loss severity	32.1% - 48.2% (40.2%)
Mortgage servicing rights	$	279		Discounted cash flows	Option adjusted spread	7.0% - 10.5% (8.8%)
					Constant prepayment rate	12.2% - 17.4% (14.9%)
					Weighted average cost to service per loan	$67 - $88 ($78)
Derivative financial instruments
Rate lock commitments	$	55		Consensus pricing	Origination pull-through rate	65.3% - 98.0% (81.7%)
Liabilities
Long-term debt	$	(70	)	Discounted cash flows	Discount rate	6.5% - 9.7% (8.1%)
					Prepay rate - 3 month historical average	26.2% - 39.3% (32.8%)
					Weighted average life	0.3 - 0.5 (0.4)
DOJ litigation settlement	$	(82	)	Discounted cash flows	Asset growth rate	4.4% - 6.6% (5.5%)
					MSR growth rate	0.9% - 1.4% (1.2%)
					Return on assets (ROA) improvement	0.02% - 0.04% (0.03%)
					Peer group ROA	0.5% - 0.8% (0.7%)
	Fair Value			Valuation Technique	Unobservable Input	Range (Weighted Average)
December 31, 2014	(Dollars in millions)
Assets
Second mortgage loans	$	53		Discounted cash flows	Discount rate	7.2% - 10.8% (9.0%)
					Prepay rate - 12 month historical average	11.3% - 17.0% (14.2%)
					CDR rate - 12 month historical average	2.4% - 3.6% (3.0%)
HELOC loans	$	132		Discounted cash flows	Yield	8.0% - 12.0% (10.0%)
					Weighted average life (CPR)	7.2% - 10.8% (9.0%)
					Weighted average life (CDR)	6.6% - 9.9% (8.3%)
					Discount loss severity	60.2% - 90.2% (75.2%)
Mortgage servicing rights	$	258		Discounted cash flows	Option adjusted spread	7.1% - 10.7% (8.9%)
					Constant prepayment rate	12.2% - 17.1% (15.0%)
					Weighted average cost to service per loan	$67 - $88 ($78)
Derivative financial instruments
Rate lock commitments	$	31		Consensus pricing	Origination pull-through rate	66.2% - 99.3% (82.7%)
Liabilities
Long-term debt	$	(84	)	Discounted cash flows	Discount rate	6.4% - 9.6% (8.0%)
					Prepay rate - 3 month historical average	16.0% - 24.0% (20.0%)
					Weighted average life	0.5 - 0.7 (0.6)
DOJ litigation settlement	$	(82	)	Discounted cash flows	Asset growth rate	4.4% - 6.6% (5.5%)
					MSR growth rate	0.9% - 1.4% (1.2%)
					Return on assets (ROA) improvement	0.02% - 0.04% (0.03%)
					Peer group ROA	0.5% - 0.8% (0.7%)
Recurring Significant Unobservable Inputs
The significant unobservable inputs used in the fair value measurement of the second mortgage loans associated with the FSTAR 2006-1 mortgage securitization trust are discount rates, prepayment rates, and default rates. Significant increases (decreases) in the discount rate in isolation would result in a significantly lower (higher) fair value measurement. Increases in prepay rates in isolation result in a higher fair value and increases in default rates in isolation result in a lower fair value.
The significant unobservable inputs used in the fair value measurement of the HELOC securitization trusts are the yields, discount rates, prepayment rates, loss rates, and loss severity. For the assets, increases (decreases) in the yields in isolation would result in a lower (higher) fair value measurement; increases (decreases) in prepay rates in isolation would result in a higher (lower) fair value measurement; while increases (decreases) in defaults and loss severities in isolation would result in a lower (higher) fair value. For the liabilities, increases (decreases) in the discount rate in isolation would result in a lower (higher) fair value measurement; increases (decreases) in prepayment rates in isolation would result in a shorter (longer) weighted average life and ultimately a higher (lower) fair value measurement.
The significant unobservable inputs used in the fair value measurement of the MSRs are option adjusted spreads, prepayment rates, and cost to service. Significant increases (decreases) in all the assumptions in isolation would result in a significantly lower (higher) fair value measurement. The fair value of MSRs is estimated using a valuation model that calculates the present value of estimated future net servicing cash flows, taking into consideration expected mortgage loan prepayment rates, discount rates, servicing costs, and other economic factors, which are determined based on current market conditions. The Company obtains third-party valuations of its MSRs on a quarterly basis to assess the reasonableness of the fair value calculated by the valuation model. In certain circumstances, based on the probability of the completion of a sale of MSRs pursuant to a bona-fide purchase offer, the Company considers the bid price of that offer and identifiable transaction costs in comparison to the calculated fair value and may adjust the estimate of fair value to reflect the terms of the pending transaction.
The key economic assumptions used in determining the fair value of those MSRs capitalized during the three months ended March 31, 2015 and 2014 periods were as follows.
	Three Months Ended March 31,
	2015			2014
Weighted-average life (in years)	7.3			7.8
Weighted-average constant prepayment rate	13.6	%		12.2	%
Weighted-average discount rate	10.8	%		11.8	%
The key economic assumptions reflected in the overall fair value of the entire portfolio of MSRs were as follows.
	March 31,			December 31,
	2015			2014
Weighted-average life (in years)	6.7			6.6
Weighted-average constant prepayment rate	14.9	%		15	%
Weighted-average discount rate	10.5	%		10.9	%
The significant unobservable input used in the fair value measurement of the rate lock commitments is the pull through rate. The pull through rate is a statistical analysis of the Company's actual rate lock fallout history to determine the sensitivity of the residential mortgage loan pipeline compared to interest rate changes and other deterministic values. New market prices are applied based on updated loan characteristics and new fall-out ratios (i.e., the inverse of the pull through rate) are applied accordingly. Significant increases (decreases) in the pull through rate in isolation would result in a significantly higher (lower) fair value measurement.
The significant unobservable inputs used in the fair value measurement of the DOJ litigation settlement are future balance sheet and growth rate projections for overall asset growth, MSR growth, peer group return on assets and return on assets improvement. The current assumptions are based on management's approved, strategic performance targets beyond the current strategic modeling horizon (2015). The Bank's target asset growth rate post-2015 is based on growth in the balance sheet. Significant increases (decreases) in the Bank's growth rate in isolation could result in a significantly lower (higher) fair value measurement. Significant increases (decreases) in the Bank's MSR growth rate in isolation could result in a marginally lower (higher) fair value measurement. Significant increases (decreases) in the peer group's return on assets improvement in isolation could result in a marginally higher (lower) fair value measurement. Significant increases (decreases) in the Bank's return on assets improvement in isolation could result in a marginally higher (lower) fair value measurement.
Assets and Liabilities Measured at Fair Value on a Nonrecurring Basis
The Company also has assets that under certain conditions are subject to measurement at fair value on a non-recurring basis. These assets are measured at the lower of cost or fair value and had a fair value below cost at the end of the period as summarized below.
		Level 3
		(Dollars in millions)
March 31, 2015
Impaired loans held-for-investment (1)
Residential first mortgage loans		$	51
Repossessed assets (2)		16
Totals		$	67
December 31, 2014
Impaired loans held-for-investment (1)
Residential first mortgage loans		$	74
Repossessed assets (2)		19
Totals		$	93
-1	The Company recorded $3.5 million and $9.9 million in fair value losses on impaired loans (included in provision for loan losses on Consolidated Statements of Operations) during the three months ended March 31, 2015 and 2014, respectively.
-2	The Company recorded $0.5 million in losses related to write downs of repossessed assets based on the estimated fair value of the specific assets during both the three months ended March 31, 2015 and 2014, and recognized a net loss of $0.2 million and a net gain of $0.8 million on sales of repossessed assets (both write downs and net gains/losses are included in assets resolution expense on the Consolidated Statements of Operations) during the three months ended March 31, 2015 and 2014, respectively.
The following tables present the quantitative information about non-recurring level 3 fair value financial instruments and the fair value measurements as of March 31, 2015 and December 31, 2014.
	Fair Value			Valuation Technique	Unobservable Input	Range (Weighted Average)
March 31, 2015	(Dollars in millions)
Impaired loans held-for-investment
Residential first mortgage loans	$	51		Fair value of collateral	Loss severity discount	35.0% - 45.0% (38.2%)
Repossessed assets	$	16		Fair value of collateral	Loss severity discount	2.6% - 69.2% (45.8%)
	Fair Value			Valuation Technique	Unobservable Input	Range (Weighted Average)
December 31, 2014	(Dollars in millions)
Impaired loans held-for-investment
Residential first mortgage loans	$	74		Fair value of collateral	Loss severity discount	35% - 47% (36.9%)
Repossessed assets	$	19		Fair value of collateral	Loss severity discount	7% - 100% (45.4%)
Non-Recurring Significant Unobservable Inputs
The significant unobservable inputs used in the fair value measurement of the impaired loans and repossessed assets are appraisals or other third party price opinions which incorporate measures such as recent sales prices for comparable properties.
Fair Value of Financial Instruments
The following tables present the carrying amount and estimated fair value of financial instruments that are carried either at fair value or cost.
	March 31, 2015
					Estimated Fair Value
	Carrying				Total				Level 1				Level 2				Level 3
	Value
	(Dollars in millions)
Financial Instruments
Assets
Cash and cash equivalents	$	241			$	241			$	241			$	—			$	—
Other investments	100				100				—				—				100
Investment securities available-for-sale	2,295				2,295				—				2,295				—
Loans held-for-sale	2,097				2,137				—				2,137				—
Loans with government guarantees	704				683				—				683				—
Loans held-for-investment, net	4,378				4,259				—				26				4,233
Repossessed assets	17				17				—				—				17
Federal Home Loan Bank stock	155				155				155				—				—
Mortgage servicing rights	279				279				—				—				279
Derivative Financial Instruments
U.S. Treasury and euro dollar futures	3				3				3				—				—
Rate lock commitments	55				55				—				—				55
Mortgage back securities forwards	1				1				1				—				—
Interest rate swaps	7				7				—				7				—
Liabilities
Retail deposits
Demand deposits and savings accounts	(4,819		)		(4,614		)		—				(4,614		)		—
Certificates of deposit	(775		)		(778		)		—				(778		)		—
Government deposits	(943		)		(913		)		—				(913		)		—
Company controlled deposits	(1,012		)		(1,008		)		—				(1,008		)		—
Federal Home Loan Bank advances	(1,625		)		(1,625		)		(1,625		)		—				—
Long-term debt	(317		)		(154		)		—				(84		)		(70		)
Warrant liabilities	(5		)		(5		)		—				(5		)		—
Litigation settlement	(82		)		(82		)		—				—				(82		)
Derivative Financial Instruments
Forward agency and loan sales	(26		)		(26		)		—				(26		)		—
Customer initiated derivative interest rate swaps	(8		)		(8		)		—				(8		)		—
Swap futures	(1		)		(1		)		(1		)		—				—
	31-Dec-14
					Estimated Fair Value
	Carrying				Total				Level 1				Level 2				Level 3
	Value
	(Dollars in millions)
Financial Instruments
Assets
Cash and cash equivalents	$	136			$	136			$	136			$	—			$	—
Other investments	100				100				—				—				100
Investment securities available-for-sale	1,672				1,672				—				1,670				2
Loans held-for-sale	1,244				1,196				—				1,196				—
Loans repurchased with government guarantees	1,128				1,094				—				1,094				—
Loans held-for-investment, net	4,151				3,998				—				26				3,972
Repossessed assets	19				19				—				—				19
Federal Home Loan Bank stock	155				155				155				—				—
Mortgage servicing rights	258				258				—				—				258
Derivative Financial Instruments
Customer initiated derivative interest rate swaps	6				6				—				6				—
U.S. Treasury futures	7				7				7				—				—
Forward agency and loan sales	—				—				—				—				—
Rate lock commitments	31				31				—				—				31
Agency forwards	2				2				2				—				—
Liabilities
Retail deposits
Demand deposits and savings accounts	(4,565		)		(4,291		)		—				(4,291		)		—
Certificates of deposit	(813		)		(816		)		—				(816		)		—
Government accounts	(918		)		(884		)		—				(884		)		—
Company controlled deposits	(773		)		(770		)		—				(770		)		—
Federal Home Loan Bank advances	(514		)		(514		)		(514		)		—				—
Long-term debt	(331		)		(172		)		—				(88		)		(84		)
Warrant liabilities	(6		)		(6		)		—				(6		)		—
Litigation settlement	(82		)		(82		)		—				—				(82		)
Derivative Financial Instruments
Customer initiated derivative interest rate swaps	(6		)		(6		)		—				(6		)		—
U.S. Treasury futures	(1		)		(1		)		(1		)		—				—
Forward agency and loan sales	(13		)		(13		)		—				(13		)		—
The methods and assumptions used by the Company in estimating fair value of financial instruments which are required for disclosure only, are as follows:
Cash and cash equivalents. Due to their short-term nature, the carrying amount of cash and cash equivalents approximates fair value.
Loans with government guarantees. The fair value is estimated by using internally developed discounted cash flow models using market interest rate inputs as well as management’s best estimate of spreads for similar collateral.
Loans held-for-investment. The fair value is estimated using internally developed discounted cash flow models using market interest rate inputs as well as management’s best estimate of spreads for similar collateral.
Federal Home Loan Bank stock. No secondary market exists for Federal Home Loan Bank stock. The stock is bought and sold at par by the Federal Home Loan Bank. Management believes that the recorded value equals the fair value.
Deposit accounts. The fair value of demand deposits and savings accounts approximates the carrying amount. The fair value of fixed-maturity certificates of deposit is estimated using the rates currently offered for certificates of deposit with similar remaining maturities.
Federal Home Loan Bank advances. Rates currently available for debt with similar terms and remaining maturities are used to estimate the fair value of the existing debt.
Long-term debt. The fair value of the long-term debt is estimated based on a discounted cash flow model that incorporates current borrowing rates for similar types of borrowing arrangements.
Fair Value Option
The Company elected the fair value option for certain items as discussed throughout the Notes above of the Notes to the Consolidated Financial Statements, herein, to mitigate a divergence between accounting losses and economic exposure.
The following table reflects the change in fair value included in earnings (and the account recorded in) for the assets and liabilities for which the fair value option has been elected.
		Three Months Ended March 31,
		2015				2014
Assets		(Dollars in millions)
Loans held-for-sale
	Net gain on loan sales	$	105.2			$	63
Loans held-for-investment
	Interest income on loans	$	3.3			$	—
	Other noninterest income	(20.3		)		(4.3		)
Liabilities
Long-term debt
	Other noninterest income	$	14.7			$	4.1
Litigation settlement
	Other noninterest expense	$	(0.1	)		$	(1.0	)
The following table reflects the difference between the aggregate fair value and aggregate remaining contractual principal balance outstanding as of March 31, 2015 and December 31, 2014 for assets and liabilities for which the fair value option has been elected.
		March 31, 2015										December 31, 2014
		(Dollars in millions)
		Unpaid Principal Balance			Fair Value			Fair Value Over / (Under) Unpaid Principal Balance			Unpaid Principal Balance				Fair Value			Fair Value Over / (Under) Unpaid Principal Balance
Assets
	Nonaccrual loans
	Loans held-for-sale	$	—		$	—		$	—			$	—		$	—		$	—
Loans held-for-investment		12			5			(7		)		11			5			(6		)
Total nonaccrual loans		$	12		$	5		(7		)		$	11		$	5		$	(6	)
Other performing loans
Loans held-for-sale		$	1,957		$	2,044		$	87			$	1,144		$	1,196		$	52
Loans held-for-investment		204			184			(20		)		225			206			(19		)
Total other performing loans		$	2,161		$	2,228		$	67			$	1,369		$	1,402		$	33
Total loans
Loans held-for-sale		$	1,957		$	2,044		$	87			$	1,144		$	1,196		$	52
Loans held-for-investment		216			189			(27		)		236			211			(25		)
Total loans		$	2,173		$	2,233		$	60			$	1,380		$	1,407		$	27
Liabilities
Long-term debt		$	(72	)	$	(70	)	$	2			$	(88	)	$	(84	)	$	4
Litigation settlement		N/A (1)			(82		)	N/A (1)				N/A (1)			(82		)	N/A (1)
-1	Remaining principal outstanding is not applicable to the litigation settlement because it does not obligate the Company to return a stated amount of principal at maturity, but instead return $118 million based upon performance on the underlying terms in the Agreement.

Segment_Information

Segment Information	3 Months Ended
	Mar. 31, 2015
Segment Reporting [Abstract]
Segment Information	Segment Information
	The Company's operations are conducted through four operating segments: Mortgage Originations, Mortgage Servicing, Community Banking and Other, which includes the remaining reported activities. Operating segments are defined as components of an enterprise that engage in business activity from which revenues are earned and expenses incurred for which discrete financial information is available that is evaluated regularly by executive management in deciding how to allocate resources and in assessing performance. The operating segments have been determined based on the products and services offered and reflect the manner in which financial information is currently evaluated by management. Each segment operates under the same banking charter, but is reported on a segmented basis for this report. Each of the operating segments is complementary to each other and because of the interrelationships of the segments, the information presented is not indicative of how the segments would perform if they operated as independent entities.
	The Mortgage Originations segment originates, acquires and sells one-to-four family residential mortgage loans. The origination and acquisition of mortgage loans comprises the majority of the lending activity. Mortgage loans are originated through home loan centers, national call centers, the Internet and unaffiliated banks and mortgage banking and brokerage companies, where the net interest income and the gains from sales associated with these loans are recognized in the Mortgage Originations segment.
	The Mortgage Servicing segment services and subservices mortgage loans, on a fee basis, for others. Also, the Mortgage Servicing segment services, on a fee basis, residential mortgages held-for-investment by the Community Banking segment and mortgage servicing rights held by the Other segment. The Mortgage Servicing segment may also collect ancillary fees, such as late fees, and earns income through the use of noninterest-bearing escrows.
	The Community Banking segment originates loans, provides deposits and fee based services to consumer, business, and mortgage lending customers through its Branch Banking, Business, and Commercial Banking, Government Banking, Warehouse Lending and Held-for-Investment Portfolio groups. Products offered through these teams include checking accounts, savings accounts, money market accounts, certificates of deposit, other services, consumer loans, commercial loans, and warehouse lines of credit. Other financial services available to consumer and commercial customers include lines of credit, revolving credit, customized treasury management solutions, equipment leasing, inventory, and accounts receivable lending and capital markets services such as interest rate risk protection products.
	The Other segment includes the treasury functions, funding revenue associated with stockholders' equity, the impact of interest rate risk management, the impact of balance sheet funding activities, charges or credits of an unusual or infrequent nature that are not reflective of the normal operations of the operating segments, and miscellaneous other expenses of a corporate nature. Treasury functions include administering the investment securities portfolios, balance sheet funding, interest rate risk management and MSR asset valuation, hedging and sales into the secondary market. In addition, the Other segment includes revenue and expenses related to treasury and corporate assets and liabilities and equity not directly assigned or allocated to the Mortgage Originations, Mortgage Servicing or Community Banking operating segments.
	Revenues are comprised of net interest income (before the provision for loan losses) and noninterest income. Noninterest expenses are fully allocated to each operating segment. Allocation methodologies may be subject to periodic adjustment as the internal management accounting system is revised and the business or product lines within the segments change. Also, because the development and application of these methodologies is a dynamic process, the financial results presented may be periodically revised.
	The following tables present financial information by business segment for the periods indicated.
		Three Months Ended March 31, 2015
		Mortgage Origination			Mortgage Servicing			Community Banking			Other			Total
	Summary of Operations	(Dollars in millions)
	Net interest income	$	16.2		$	3.5		$	38.4		$	6.8		$	64.9
	Net gain on loan sales	96.1			—			(4.8		)	—			91.3
	Representation and warranty reserve - change in estimate	—			1.5			—			—			1.5
	Other noninterest income	16.6			13.4			6.7			(11.2		)	25.5
	Total net interest income and noninterest income	128.9			18.4			40.3			(4.4		)	183.2
	Provision for loan losses	—			—			3.5			—			3.5
	Asset resolution	—			(7.0		)	(0.8		)	—			(7.8		)
	Depreciation and amortization expense	(0.5		)	(0.8		)	(1.3		)	(2.9		)	(5.5		)
	Other noninterest expense	(55.3		)	(27.2		)	(38.8		)	(2.4		)	(123.7		)
	Total noninterest expense	(55.8		)	(35.0		)	(40.9		)	(5.3		)	(137.0		)
	Income (loss) before federal income taxes	73.1			(16.6		)	2.9			(9.7		)	49.7
	Provision for federal income taxes	—			—			—			18.2			18.2
	Net income (loss)	$	73.1		$	(16.6	)	$	2.9		$	(27.9	)	$	31.5
	Intersegment revenue	$	7.7		$	2.5		$	(4.9	)	$	(5.3	)	$	—
	Average balances
	Loans held-for-sale	$	1,801		$	—		$	41		$	—		$	1,842
	Loans with government guarantees	—			865			—			—			865
	Loans held-for-investment	—			—			4,167			126			4,293
	Total assets	1,974			1,170			4,106			3,606			10,856
	Interest-bearing deposits	—			—			5,985			—			5,985
		Three Months Ended March 31, 2014
		Mortgage Origination			Mortgage Servicing			Community Banking			Other			Total
	Summary of Operations	(Dollars in millions)
	Net interest income (loss)	$	12.2		$	5.4		$	34.7		$	5.9		$	58.2
	Net gain on loan sales	47.4			—			(2.1		)	—			45.3
	Representation and warranty reserve - change in estimate	—			1.7			—			—			1.7
	Other noninterest income	12			13.1			(13.5		)	16.4			28
	Total net interest income and noninterest income	71.6			20.2			19.1			22.3			133.2
	Provision for loan losses	—			—			(112.3		)	—			(112.3		)
	Asset resolution	—			(10.8		)	(0.7		)	—			(11.5		)
	Depreciation and amortization expense	(0.2		)	(1.6		)	(1.1		)	(2.9		)	(5.8		)
	Other noninterest expense	(53.5		)	(22.9		)	(42.1		)	(3.5		)	(122.0		)
	Total noninterest expense	(53.7		)	(35.3		)	(43.9		)	(6.4		)	(139.3		)
	Income (loss) before federal income taxes	17.9			(15.1		)	(137.1		)	15.9			(118.4		)
	Benefit for federal income taxes	—			—			—			(40.0		)	(40.0		)
	Net income (loss)	$	17.9		$	(15.1	)	$	(137.1	)	$	55.9		$	(78.4	)
	Intersegment revenue	$	3.8		$	5		$	(2.1	)	$	(6.7	)	$	—
	Average balances
	Loans held-for-sale	$	1,219		$	—		$	78		$	—		$	1,297
	Loans with government guarantees	—			1,270			—			—			1,270
	Loans held-for-investment	—			—			3,864			—			3,864
	Total assets	1,363			1,415			3,928			2,602			9,308
	Interest-bearing deposits	—			—			5,230			—			5,230

Restatement_of_Consolidated_St

Restatement of Consolidated Statements of Cash Flows	3 Months Ended
	Mar. 31, 2015
Accounting Changes and Error Corrections [Abstract]
Restatement of Consolidated Statements of Cash Flows	Restatement of Consolidated Statements of Cash Flows
	The Company reclassified the reporting of certain cash flows as coming from operating, financing, and investing activities in the Consolidated Statements of Cash Flows for each of the quarterly periods in the year ended 2014. The primary cause of the reclassifications related to cash flows associated with our nonperforming loan sales that occurred throughout 2014, which were presented as cash flows provided by operating activities but should have been included in cash flows provided by investing activities consistent with the original balance sheet classification rather than their classification at the time of sale per ASC 230-45-12. These reclassifications have no impact on the total cash flows for the periods impacted or on the beginning or ending cash balances for any of these periods. We will continue to revise future quarters to restate the 2014 Consolidated Statements of Cash Flows as those quarters are presented. For a comparison of the as stated and restated amounts for the period ended March 31, 2014, see below.
		Three Months Ended March 31,
		2014
		(Unaudited)			(Unaudited)
		As Restated			As Reported
	Operating Activities
	Net loss	$	(78.4	)	$	(78.4	)
	Adjustments to reconcile net loss to net cash used in operating activities:
	Provision for loan losses	112.3			112.3
	Representation and warranty provision	(1.7		)	(1.7		)
	Depreciation and amortization	5.6			5.8
	Loss on fair value of mortgage servicing rights	*			9.6
	Loss on fair value of long term debt	*			1.3
	Deferred income taxes	(36.7		)	*
	Changes in fair value of MSRs, DOJ litigation settlement liability and long-term debt	11.9			*
	Premium, change in fair value, and other non-cash changes	(136.2		)	*
	Net transaction costs on sales of mortgage servicing rights	*			(3.6		)
	Net gain on investment securities	*			(0.2		)
	Net gain on loan and asset sales	(48.4		)	(48.3		)
	Net change in:
	Proceeds from sales of loans held-for-sale ("HFS")	3,032.80			3,555.70
	Origination and repurchase of loans, net of principal repayments	(4,686.4		)	(5,296.0		)
	Decrease in repurchase loans with government guarantees, net of claims received	*			7
	Decrease in accrued interest receivable	(3.2		)	(3.2		)
	Decrease in other assets, excludes purchase of other investments	14.4			(16.1		)
	Increase in payable for mortgage repurchase option	*			(5.0		)
	Net charge-offs in representation and warranty reserve	(5.6		)	(5.6		)
	Decrease in other liabilities	(41.9		)	(41.2		)
	Net cash used in operating activities	(1,861.5		)	(1,807.6		)
	Investing Activities
	Proceeds from sale of available for sale securities including loans that have been securitized	1,909.00			*
	Proceeds received from sale of investment securities available-for-sale	*			1,846.30
	Collection of principal on investment securities available-for-sale	30.9			*
	Repayment of investment securities available-for-sale	*			30.7
	Purchase of investment securities available-for-sale and other	(205.6		)	(205.5		)
	Proceeds received from the sale of held-for-investment loans ("HFI")	35.1			*
	Origination and purchase of loans HFI, net of principal repayments	(312.6		)	*
	Net change from sales of loans held-for-investment	*			(276.4		)
	Principal repayments net of origination of loans held-for-investment	*			13.8
	Proceeds from the disposition of repossessed assets	10			10
	Acquisitions of premises and equipment, net of proceeds	(7.8		)	(7.8		)
	Proceeds from the sale of mortgage servicing rights	11.7			5.7
	Net cash provided by investing activities	1,470.70			1,416.80
	Financing Activities
	Net increase in deposit accounts	170			170
	Net increase in Federal Home Loan Bank Advances	*			137
	Proceeds from increases in Federal Home Loan Bank Advances	4,332.00			*
	Repayment of Federal Home Loan Bank advances	(4,195.0		)	*
	Repayment of trust preferred securities and long-term debt	(5.4		)	(5.4		)
	Net receipt of payments of loans serviced for others	24.9			24.9
	Net receipt of escrow payments	3			3
	Net cash provided by financing activities	329.5			329.5
	Net decrease in cash and cash equivalents	(61.3		)	(61.3		)
	Beginning cash and cash equivalents	280.5			280.5
	Ending cash and cash equivalents	$	219.2		$	219.2
	Supplemental disclosure of cash flow information
	Interest paid on deposits and other borrowings	$	6.4		$	6.2
	Income tax payments	$	—		$	0.3
	Non-cash reclassification of loans originated HFI to loans HFS	$	308.3		$	281
	Non-cash reclassification of mortgage loans originated HFS to HFI	$	4.6		$	4.6
	Non-cash reclassification of mortgage loans HFS to AFS securities	$	1,889.10		*
	Mortgage servicing rights resulting from sale or securitization of loans	$	51		$	51
	Loans held-for-investment transferred to repossessed assets	*			$	16
* Line item caption changes. Activity has been reported under a new caption.

Basis_of_Presentation_and_Acco1

Basis of Presentation and Accounting Standards (Policies)	3 Months Ended
	Mar. 31, 2015
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Recently Issued Accounting Pronouncements	Recently Issued Accounting Pronouncements
	In January 2015, the FASB issued ASU No. 2015-01, Income Statement - Extraordinary and Unusual items (Subtopic 22-20). The adoption of this guidance is not expected to have a material effect on the Company’s Consolidated Financial Statements or the Notes thereto.
	In February 2015, the FASB issued ASU No. 2015-02, Consolidation (Topic 810) - Amendments to the Consolidation Analysis. Under the amended guidance all reporting entities are within the scope of Subtopic 810-10, Consolidation - Overall, including limited partnerships and similar legal entities, unless a scope exception applies. The presumption that a general partner controls a limited partnership has been eliminated. The ASU is effective for the annual period ending after December 15, 2015, and all reporting periods thereafter. The adoption of this guidance is not expected to have a material effect on the Company’s Consolidated Financial Statements or the Notes thereto.
	In April 2015, the FASB issued ASU No. 2015-03, Interest-Imputation of Interest (Subtopic 835-30). The amendments will require that debt issuance costs related to a recognized debt liability be presented in the balance sheet as a direct deduction from the carrying amount of that debt liability, consistent with debt discounts. The ASU is effective prospectively or retrospectively for annual and interim periods beginning after December 15, 2015. The adoption of this guidance is not expected to have a material effect on the Company’s Consolidated Financial Statements or the Notes thereto.
	In April 2015, the FASB issued ASU No. 2015-05, Intangibles - Goodwill and Other Internal-Use Software. The amendments in this update provide guidance to customers about whether a cloud computing arrangement includes a software license. If a cloud computing arrangement includes a software license, then the customer should account for the software license element of the arrangement consistent with the acquisition of other licenses. If it does not include a software license, the customer should account for the arrangement as a service contract. The ASU is effective for the annual period ending after December 15, 2015, and all reporting periods thereafter. The adoption of this guidance is not expected to have a material effect on the Company’s Consolidated Financial Statements or the Notes thereto.

Investment_Securities_Tables

Investment Securities (Tables)	3 Months Ended
	Mar. 31, 2015
Investments, Debt and Equity Securities [Abstract]
Schedule of Trading and Available-for-sale Securities	As of March 31, 2015 and December 31, 2014, investment securities were comprised of the following.
			Amortized			Gross			Gross				Fair Value
			Cost			Unrealized			Unrealized
						Gains			Losses
			(Dollars in millions)
	March 31, 2015
	Available-for-sale securities
	Agency		$	398		$	8		$	—			$	406
	Agency-collateralized mortgage obligations		1,863			28			(2		)		1,889
	Total available-for-sale securities		$	2,261		$	36		$	(2	)		$	2,295
	December 31, 2014
	Available-for-sale securities
	Agency		$	925		$	6		$	(2	)		$	929
	Agency-collateralized mortgage obligations		734			8			(1		)		741
	Municipal obligations		2			—			—				2
	Total available-for-sale securities		$	1,661		$	14		$	(3	)		$	1,672
Available-for-sale Securities, Continuous Unrealized Loss Position, Fair Value	The following table summarizes by duration the unrealized loss positions on investment securities available-for-sale.
		Unrealized Loss Position with										Unrealized Loss Position with
		Duration 12 Months and Over										Duration Under 12 Months
		Fair Value			Number of			Unrealized				Fair			Number of		Unrealized
					Securities			Loss				Value			Securities		Loss
	Type of Security	(Dollars in millions)
	March 31, 2015
	Agency	$	—		$	—		$	—			$	10		$	1	$	—
	Agency-collateralized mortgage obligations	37			6			(1		)		254			14		(1		)
	December 31, 2014
	Agency	$	53		6			$	—			$	305		21		$	(2	)
	Agency-collateralized mortgage obligations	98			10			(1		)		38			4		—

Loans_HeldforInvestment_Tables

Loans Held-for-Investment (Tables)	3 Months Ended
	Mar. 31, 2015
Receivables [Abstract]
Schedule of Loans Held-for-investment	Loans held-for-investment are summarized as follows.
		March 31,				December 31,
		2015				2014
		(Dollars in millions)
	Consumer loans
	Residential first mortgage	$	2,013			$	2,194
	Second mortgage	146				149
	HELOC	316				256
	Other	30				31
	Total consumer loans	2,505				2,630
	Commercial loans
	Commercial real estate	635				620
	Commercial and industrial	408				429
	Warehouse lending	1,083				769
	Total commercial loans	2,126				1,818
	Total loans held-for-investment	4,631				4,448
	Less allowance for loan losses	(253		)		(297		)
	Loans held-for-investment, net	$	4,378			$	4,151
Allowance for Loan Losses	The allowance for loan losses by class of loan is summarized in the following table.
		Residential				Second				HELOC				Other			Commercial			Commercial		Warehouse		Total
		First				Mortgage								Consumer			Real Estate			and Industrial		Lending
		Mortgage
		(Dollars in millions)
	Three Months Ended March 31, 2015
	Beginning balance allowance for loan losses	$	234.3			$	12.4			$	18.7			$	0.8		$	17.4		$	10.7	$	2.7	$	297
	Charge-offs	(40.8		)		(0.8		)		(0.9		)		(0.7		)	—			—		—		(43.2		)
	Recoveries	0.3				0.1				0.1				0.5			1.7			—		—		2.7
	Provision (benefit)	(6.4		)		0.3				3.3				(0.2		)	(2.9		)	1.3		1.1		(3.5		)
	Ending balance allowance for loan losses	$	187.4			$	12			$	21.2			$	0.4		$	16.2		$	12	$	3.8	$	253
	Three Months Ended March 31, 2014
	Beginning balance allowance for loan losses	$	161.2			$	12.1			$	7.9			$	2.4		$	18.5		$	3.5	$	1.4	$	207
	Charge-offs	(10.8		)		(1.1		)		(2.7		)		(0.5		)	—			—		—		(15.1		)
	Recoveries	1.2				0.1				—				0.3			1.1			0.1		—		2.8
	Provision (benefit)	104.8				2.3				6.3				(0.8		)	(1.5		)	1.1		0.1		112.3
	Ending balance allowance for loan losses	$	256.4			$	13.4			$	11.5			$	1.4		$	18.1		$	4.7	$	1.5	$	307
	For the three months ended March 31, 2015, the Company sold nonperforming residential first mortgage loans as discussed above. The $36.0 million reduction in the reserve associated with these sales was partially offset by an increase in volume and reserve rates in the portfolio.
	The loans held-for-investment and allowance for loan losses by class of loan is summarized in the following table.
		Residential				Second				HELOC				Other			Commercial			Commercial		Warehouse		Total
		First				Mortgage								Consumer			Real Estate			and  Industrial		Lending
		Mortgage
		(Dollars in millions)
	March 31, 2015
	Loans held-for-investment
	Individually evaluated	$	116			$	31			$	1			$	—		$	—		$	—	$	—	$	148
	Collectively evaluated (1)	1,871				65				202				30			635			408		1,083		4,294
	Total loans	$	1,987			$	96			$	203			$	30		$	635		$	408	$	1,083	$	4,442
	Allowance for loan losses
	Individually evaluated	$	15.9			$	5.5			$	0.9			$	0.1		$	—		$	—	$	—	$	22.4
	Collectively evaluated (1)	171.5				6.5				20.3				0.3			16.2			12		3.8		230.6
	Total allowance for loan losses	$	187.4			$	12			$	21.2			$	0.4		$	16.2		$	12	$	3.8	$	253
	December 31, 2014
	Loans held-for-investment
	Individually evaluated	$	385			$	31			$	1			$	—		$	—		$	—	$	—	$	417
	Collectively evaluated (1)	1,782				65				124				31			620			429		769		3,820
	Total loans	$	2,167			$	96			$	125			$	31		$	620		$	429	$	769	$	4,237
	Allowance for loan losses
	Individually evaluated	$	81.8			$	5.6			$	1			$	0.1		$	—		$	—	$	—	$	88.5
	Collectively evaluated (1)	152.5				6.8				17.7				0.7			17.4			10.7		2.7		208.5
	Total allowance for loan losses	$	234.3			$	12.4			$	18.7			$	0.8		$	17.4		$	10.7	$	2.7	$	297
	-1	Excludes loans carried under the fair value option.
Past Due Loans	The following table sets forth the loans held-for-investment aging analysis as of March 31, 2015 and December 31, 2014, of past due and current loans.
		30-59 Days				60-89 Days				90 Days or				Total			Current			Total
		Past Due				Past Due				Greater Past				Past Due						Investment
										Due										Loans
		(Dollars in millions)
	March 31, 2015
	Consumer loans
	Residential first mortgage	$	17			$	6			$	78			$	101		$	1,912		$	2,013
	Second mortgage	1				—				2				3			143			146
	HELOC	4				2				4				10			306			316
	Other	—				—				—				—			30			30
	Total consumer loans	22				8				84				114			2,391			2,505
	Commercial loans
	Commercial real estate	—				—				—				—			635			635
	Commercial and industrial	—				—				—				—			408			408
	Warehouse lending	—				—				—				—			1,083			1,083
	Total commercial loans	—				—				—				—			2,126			2,126
	Total loans (1)	$	22			$	8			$	84			$	114		$	4,517		$	4,631
	December 31, 2014
	Consumer loans
	Residential first mortgage	$	29			$	9			$	115			$	153		$	2,041		$	2,194
	Second mortgage	1				—				2				3			146			149
	HELOC	4				1				3				8			248			256
	Other	—				—				—				—			31			31
	Total consumer loans	34				10				120				164			2,466			2,630
	Commercial loans
	Commercial real estate	—				—				—				—			620			620
	Commercial and industrial	—				—				—				—			429			429
	Warehouse lending	—				—				—				—			769			769
	Total commercial loans	—				—				—				—			1,818			1,818
	Total loans (1)	$	34			$	10			$	120			$	164		$	4,284		$	4,448
	-1	Includes $5 million of loans 90 days or greater past due accounted for under the fair value option at both March 31, 2015 and December 31, 2014, respectively.
Troubled Debt Restructurings	The following table provides a summary of newly modified TDRs and TDR loans in the past 12 months that have subsequently defaulted during the three months ended March 31, 2015 and 2014. All TDR classes within consumer and commercial loan portfolios are considered subsequently defaulted when greater than 90 days past due.
		Number of Accounts			Pre-Modification Unpaid Principal Balance				Post-Modification Unpaid Principal Balance (1)				Increase (Decrease) in Allowance at Modification
	Three Months Ended March 31, 2015				(Dollars in millions)
	Residential first mortgages	114			$	30.5			$	28.7			$	0.6
	Second mortgages	33			1.3				1.2				(0.1		)
	HELOC (2)	36			0.2				0.7				—
	Total TDR loans	183			$	32			$	30.6			$	0.5
		Number of Accounts			Pre-Modification Unpaid Principal Balance				Post-Modification Unpaid Principal Balance (1)				Increase in Allowance at Modification
	Three Months Ended March 31, 2014				(Dollars in millions)
	Residential first mortgages	25			$	7			$	6.7			$	0.6
	Second mortgages	94			3				2.9				—
	HELOC (2)	9			0.4				0.3				—
	Total TDR loans	128			$	10.4			$	9.9			$	0.6
	-1	Post-modification balances include past due amounts that are capitalized at modification date.
	-2	HELOC post-modification unpaid principal balance reflects write downs.
	The following table provides a summary of TDRs outstanding by type and performing status.
		TDRs
		Performing				Nonperforming				Total
	31-Mar-15	(Dollars in millions)
	Consumer loans (1)
	Residential first mortgage	$	57			$	25			$	82
	Second mortgage	35				1				36
	HELOC	19				2				21
	Total TDRs (2)	$	111			$	28			$	139
	31-Dec-14
	Consumer loans (1)
	Residential first mortgage	$	307			$	43			$	350
	Second mortgage	35				2				37
	HELOC	20				1				21
	Total TDRs (2)	$	362			$	46			$	408
	-1	The allowance for loan losses on consumer TDR loans totaled $23 million and $81 million at March 31, 2015 and December 31, 2014, respectively.
	-2	Includes $30 million of TDR loans accounted for under the fair value option at both March 31, 2015 and December 31, 2014.
Impaired Loans	The following table presents impaired loans and the associated allowance:
		March 31, 2015												December 31, 2014
		Recorded				Unpaid				Related				Recorded			Unpaid			Related
		Investment				Principal				Allowance				Investment			Principal			Allowance
						Balance											Balance
		(Dollars in millions)
	With no related allowance recorded
	Consumer loans
	Residential first mortgage loans	$	40			$	46			$	—			$	63		$	78		$	—
	Second mortgage	1				6				—				1			6			—
	HELOC	—				1				—				—			1			—
		$	41			$	53			$	—			$	64		$	85		$	—
	With an allowance recorded
	Consumer loans
	Residential first mortgage	$	75			$	81			$	16			$	321		$	325		$	82
	Second mortgage	29				29				6				29			29			6
	HELOC	1				1				1				1			1			1
		$	105			$	111			$	23			$	351		$	355		$	89
	Total
	Consumer loans
	Residential first mortgage	$	115			$	127			$	16			$	384		$	403		$	82
	Second mortgage	30				35				6				30			35			6
	HELOC	1				2				1				1			2			1
	Total impaired loans	$	146			$	164			$	23			$	415		$	440		$	89
	The following table presents average impaired loans and the interest income recognized:
		Three Months Ended March 31,
		2015								2014
		Average Recorded Investment				Interest Income Recognized				Average Recorded Investment				Interest Income Recognized
		(Dollars in millions)
	Consumer loans
	Residential first mortgage	$	306.7			$	2.1			$	413.2			$	2.6
	Second mortgage	30.8				0.4				25.2				0.2
	HELOC	0.8				—				0.2				—
	Commercial loans
	Commercial real estate	0.4				—				2				—
	Total impaired loans	$	338.7			$	2.5			$	440.6			$	2.8
Loan Credit Quality Indicators
	Commercial Credit Loans	31-Mar-15
		Commercial  Real				Commercial and				Warehouse				Total
		Estate				Industrial								Commercial
		(Dollars in millions)
	Grade
	Pass	$	596			$	350			$	937			$	1,883
	Watch	29				19				117				165
	Special mention	7				14				29				50
	Substandard	3				25				—				28
	Total loans	$	635			$	408			$	1,083			$	2,126
	Consumer Credit Loans	31-Mar-15
		Residential First				Second				HELOC				Other  Consumer			Total
		Mortgage				Mortgage
		(Dollars in millions)
	Grade
	Pass	$	1,874			$	108			$	292			$	30		$	2,304
	Watch	61				36				20				—			117
	Substandard	78				2				4				—			84
	Total loans	$	2,013			$	146			$	316			$	30		$	2,505
	Commercial Credit Loans	31-Dec-14
		Commercial  Real				Commercial and				Warehouse				Total
		Estate				Industrial								Commercial
		(Dollars in millions)
	Grade
	Pass	$	578			$	399			$	650			$	1,627
	Watch	29				10				119				158
	Special mention	2				—				—				2
	Substandard	11				20				—				31
	Total loans	$	620			$	429			$	769			$	1,818
	Consumer Credit Loans	31-Dec-14
		Residential First				Second				HELOC				Other  Consumer			Total
		Mortgage				Mortgage											Consumer
		(Dollars in millions)
	Grade
	Pass	$	1,765			$	111			$	232			$	31		$	2,139
	Watch	314				36				21				—			371
	Substandard	115				2				3				—			120
	Total loans	$	2,194			$	149			$	256			$	31		$	2,630

Variable_Interest_Entities_VIE1

Variable Interest Entities (VIEs) (Tables) (Variable Interest Entity, Primary Beneficiary)	3 Months Ended
	Mar. 31, 2015
Variable Interest Entity, Primary Beneficiary
Variable Interest Entity [Line Items]
Summary of Classifications of Consolidated VIEs	The following table provides a summary of the classifications of consolidated VIE assets and liabilities included in the Consolidated Financial Statements.
		2005-1		2006-2		Total
	March 31, 2015	(Dollars in millions)
	HELOC Securitizations
	Assets
	Loans held-for-investment	$	47	$	65	$	112
	Liabilities
	Long-term debt	$	31	$	39	$	70
		2005-1		2006-2		Total
	December 31, 2014	(Dollars in millions)
	HELOC Securitizations
	Assets
	Loans held-for-investment	$	63	$	69	$	132
	Liabilities
	Long-term debt	$	42	$	42	$	84

Mortgage_Servicing_Rights_Tabl

Mortgage Servicing Rights (Tables)	3 Months Ended
	Mar. 31, 2015
Transfers and Servicing [Abstract]
Schedule of Servicing Assets at Fair Value	Changes in the carrying value of residential first mortgage MSRs, accounted for at fair value, were as follows.
		Three Months Ended March 31,
		2015				2014
		(Dollars in millions)
	Balance at beginning of period	$	257.8			$	284.7
	Additions from loans sold with servicing retained	67.9				51
	Reductions from sales	(21.6		)		(5.9		)
	Changes in fair value due to (1)
	Decrease in MSR due to pay-offs, pay-downs and run-off	(14.6		)		(4.9		)
	Changes in valuation inputs or assumptions (2)	(10.9		)		(4.7		)
	Fair value of MSRs at end of period	$	278.6			$	320.2
	-1	Changes in fair value are included within net return on mortgage servicing asset on the Consolidated Statements of Operations.
	-2	Represents estimated MSR value change resulting primarily from market-driven changes in interest rates
Schedule of Servicing Assets at Fair Value, Servicing Fees	The following table summarizes income and fees associated with the mortgage servicing asset.
		Three Months Ended March 31,
		2015				2014
		(Dollars in millions)
	Income on mortgage servicing asset
	Servicing fees, ancillary income and late fees	$	16.6			$	17.2
	Fair value adjustments	(25.5		)		(9.6		)
	Gain on hedging activity (1)	8.3				4.9
	Net transaction costs	(1.8		)		3.6
	Total (loss) income on mortgage servicing asset, included in net return on mortgage servicing asset	$	(2.4	)		$	16.1
	-1	Changes in the derivatives utilized as economic hedges to offset changes in fair value of the MSRs.
	Contractual servicing and subservicing fees. Contractual servicing and subservicing fees, including late fees and other ancillary income, for each type of loan serviced are presented below. Contractual servicing fees are included within net return on mortgage servicing asset on the Consolidated Statements of Operations. Contractual subservicing fees including late fees and other ancillary income are included within loan administration income on the Consolidated Statements of Operations. Subservicing fee income is recorded for fees earned, net of third-party subservicing costs, for loans subserviced.
	The following table summarizes income and fees associated with the mortgage loans subserviced.
		Three Months Ended March 31,
		2015				2014
		(Dollars in millions)
	Income on mortgage loans subserviced
	Servicing fees, ancillary income and late fees (1)	$	7.6			$	7.4
	Other servicing charges (1)	(3.3		)		(0.4		)
	Total income on mortgage loans subserviced, included in loan administration	$	4.3			$	7
	-1	Includes the servicing fees, ancillary income and late fees on mortgage loans subserviced, which is included in loan administration income on the Consolidated Statements of Operations.
Schedule of Unpaid Principal Balance and Number of Residential Loans Serviced for Others	The following table presents the unpaid principal balance of residential loans serviced for others and the number of accounts associated with those loans.
		March 31, 2015							December 31, 2014
		Amount				Number of accounts			Amount		Number of accounts
		(Dollars in millions)
	Residential mortgage servicing
	Serviced for others	$	27,046			126,393			$	25,427	117,881
	Subserviced for others (1)	44,708				231,223			46,724		238,498
	Total residential loans serviced for others (1)	$	71,754			357,616			$	72,151	356,379
	-1	Does not include temporary short-term subservicing performed as a result of some sales of servicing.
Schedule of Sensitivity Analysis of Fair Value	The following table summarizes the hypothetical effect on the fair value of servicing rights carried at fair value using adverse changes of 10 percent and 20 percent to the weighted-average of certain significant assumptions used in valuing these assets.
		March 31, 2015									December 31, 2014
					Decline in fair value due to								Decline in fair value due to
		Actual			10% adverse change				20% adverse change		Actual		10% adverse change		20% adverse change
					(Dollars in millions)
	Option adjusted spread	8.76	%		$	272			$	266	8.88	%	$	250	$	243
	Constant prepayment rate	14.86	%		269				262		14.98	%	253		245
	Weighted average cost to service per loan	74.55	%		275				272		74.49	%	258		255

Derivative_Financial_Instrumen1

Derivative Financial Instruments (Tables)	3 Months Ended
	Mar. 31, 2015
Derivative Instruments and Hedging Activities Disclosure [Abstract]
Schedule of Changes in Fair Value of Derivative Instruments	The net gains recognized in income on derivative instruments, net of the impact of offsetting positions, were as follows.
			Three Months Ended March 31,
		Location of Gain/(Loss)	2015				2014
			(Dollars in millions)
	U.S. Treasury and euro dollars futures	Net return on mortgage servicing asset	$	5.9			$	3.1
	Swap futures	Net return on mortgage servicing asset	(0.1		)		—
	Mortgage backed securities forwards	Net return on mortgage servicing asset	2.5				1.8
	Rate lock commitments and forward agency and loan sales	Net gain on loan sales	10.5				(5.6		)
	Interest rate swaps	Other noninterest income	0.1				0.7
	Total derivative gain (loss)		$	18.9			$	—
Schedule of Derivative Financial Instruments	The Company had the following derivative financial instruments.
		Notional Amount				Fair Value				Expiration Dates
		(Dollars in millions)
	March 31, 2015
	Assets (1)
	U.S. Treasury and euro dollar futures	$	2,028			$	5			2016-2020
	Mortgage backed securities forwards	150				1				2016
	Rate lock commitments	3,722				55				2016
	Forward agency and loan sales	276				—				2016
	Interest rate swaps	356				7				2016-2021
	Total derivative assets	$	6,532			$	68
	Liabilities (2)
	U.S. Treasury and euro dollar futures	$	468			$	2			2016-2020
	Mortgage backed securities forwards	15				—				2016
	Swap futures	77				1				2030-2035
	Rate lock commitments	80				—				2016
	Forward agency and loan sales	4,050				26				2016
	Interest rate swaps	356				8				2016-2021
	Total derivative liabilities	$	5,046			$	37
	December 31, 2014
	Assets (1)
	U.S. Treasury and euro dollar futures	$	2,530			$	7			2015-2020
	Mortgage backed securities forwards	161				2				2015
	Rate lock commitments	2,604				31				2015
	Forward agency and loan sales	194				—				2015
	Interest rate swaps	355				6				2015-2021
	Total derivative assets	$	5,844			$	46
	Liabilities (2)
	Mortgage servicing rights
	U.S. Treasury and euro dollar futures	$	688			$	1			2015-2020
	Rate lock commitments	22				—				2015
	Forward agency and loan sales	2,789				13				2015
	Interest rate swaps	367				6				2015-2021
	Total derivative liabilities	$	3,866			$	20
	-1	Asset derivatives are included in "other assets" on the Consolidated Statements of Financial Condition.
	-2	Liability derivatives are included in "other liabilities" on the Consolidated Statements of Financial Condition.
Offsetting of Derivatives	The following tables present the derivatives subject to a master netting arrangement, including the cash pledged as collateral.
		March 31, 2015
												Gross Amounts Not Offset in the Statement of Financial Position
	Economic Undesignated Hedges	Gross Amount				Gross Amounts Offset in the Statement of Financial Position				Net Amount Presented in the Statement of Financial Position		Financial Instruments		Cash Collateral		Net Amount
		(Dollars in millions)
	Assets
	U.S. Treasury swap and euro dollar futures	$	12			$	2			$	10	$	—	$	7	$	3
	Mortgage backed securities forwards	28				—				28		—		27		1
	Interest rate swaps	8				—				8		—		1		7
	Total derivative assets	$	48			$	2			$	46	$	—	$	35	$	11
	Liabilities
	Interest rate swaps	$	8			$	—			$	8	$	—	$	—	$	8
		December 31, 2014
												Gross Amounts Not Offset in the Statement of Financial Position
	Economic Undesignated Hedges	Gross Amount				Gross Amounts Offset in the Statement of Financial Position				Net Amount Presented in the Statement of Financial Position		Financial Instruments		Cash Collateral		Net Amount
		(Dollars in millions)
	Assets
	U.S. Treasury swap and euro dollar futures	$	17			$	1			$	16	$	—	$	10	$	6
	Mortgage backed securities forwards	26				—				26		—		24		2
	Interest rate swaps	8				—				8		—		2		6
	Total derivative assets	$	51			$	1			$	50	$	—	$	36	$	14
	Liabilities
	Interest rate swaps	$	6			$	—			$	6	$	—	$	—	$	6

Federal_Home_Loan_Bank_Advance1

Federal Home Loan Bank Advances (Tables)	3 Months Ended
	Mar. 31, 2015
Advances from Federal Home Loan Banks [Abstract]
Schedule of FHLB Advances, by Interest Rate Type	The following is a breakdown of the advances outstanding.
		March 31, 2015						December 31, 2014
		Amount			Rate			Amount		Rate
		(Dollars in millions)
	Short-term fixed rate term advances	$	700		0.17	%		$	214	0.26	%
	Long-term fixed rate term advances	925			1.58	%		300		1.36	%
	Total	$	1,625		0.97	%		$	514	0.9	%
Schedule of FHLB Advances, Disclosures
		Three Months Ended March 31,
		2015			2014
		(Dollars in millions)
	Maximum outstanding at any month end	$	1,625		$	1,125
	Average outstanding balance	1,161			886
	Average remaining borrowing capacity	1,894			1,802
	Weighted-average interest rate	1.08		%	0.24		%
Schedule of FHLB, Advances, Maturity Summary	The following outlines the Company’s Federal Home Loan Bank advance final maturity dates as of March 31, 2015.
		31-Mar-15
		(Dollars in millions)
	2015	$	700
	2016	175
	2017	—
	2018	125
	Thereafter	625
	Total	$	1,625

LongTerm_Debt_Tables

Long-Term Debt (Tables)	3 Months Ended
	Mar. 31, 2015
Debt Disclosure [Abstract]
Schedule of Long-Term Debt Instruments	The following table presents the carrying value on each junior subordinated note and related interest rates of the long-term debt as of the dates indicated.
		March 31, 2015				December 31, 2014
		(Dollars in millions)
	Trust Preferred Securities
	Floating Three Month LIBOR
	Plus 3.25%, matures 2032	$	26	3.52	%	$	26	3.5	%
	Plus 3.25%, matures 2033	26		3.5	%	26		3.48	%
	Plus 3.25%, matures 2033	26		3.52	%	26		3.51	%
	Plus 2.00%, matures 2035	26		2.25	%	26		2.23	%
	Plus 2.00%, matures 2035	26		2.25	%	26		2.23	%
	Plus 1.75%, matures 2035	50		2.02	%	50		1.99	%
	Plus 1.50%, matures 2035	26		1.75	%	26		1.73	%
	Plus 1.45%, matures 2037	26		1.72	%	26		1.69	%
	Plus 2.50%, matures 2037	15		2.77	%	15		2.74	%
	Subtotal	$	247			$	247
	Notes associated with consolidated VIEs
	Floating One Month LIBOR
	Plus 0.46% (1), matures 2018 (3)	31				42
	Plus 0.16% (2), matures 2019 (4)	39				42
	Total long-term debt	$	317			$	331
	-1	The Notes will accrue interest at a rate equal to the least of (i) one-month LIBOR plus 0.46 percent (ii) the net weighted average coupon, and (iii) 16.00 percent.
	-2	The interest rate for the notes may adjust monthly and will be subject to (i) a cap based on the weighted average of the loan rates on the mortgage loans, minus the rates at which certain fees and expenses of the issuing entity are calculated and minus any required spread and adjusted for actual days and (ii) a fixed cap of 16.00 percent.
	-3	The par value for the debt was $31 million and $43 million, respectively, at March 31, 2015 and December 31, 2014.
	-4	The par value for the debt was $41 million and $45 million, respectively, at March 31, 2015 and December 31, 2014.

Representation_and_Warranty_Re1

Representation and Warranty Reserve (Tables)	3 Months Ended
	Mar. 31, 2015
Representation and Warranty Reserve Disclosures [Abstract]
Schedule of Representation and Warranty Reserve Activity	The following table shows the activity in the representation and warranty reserve.
			Three Months Ended March 31,
			2015			2014
			(Dollars in millions)
	Balance, beginning of period		$	53		$	54
	Provision
		Charged to gain on sale for current loan sales	1.9			1.2
		Charged to representation and warranty reserve - change in estimate	(1.5		)	(1.7		)
		Total	0.4			(0.5		)
	Charge-offs, net		(0.4		)	(5.5		)
	Balance, end of period		$	53		$	48

Stockholders_Equity_Tables

Stockholders' Equity (Tables)	3 Months Ended
	Mar. 31, 2015
Stockholders' Equity Note [Abstract]
Schedule of Stock by Class	Preferred stock with a par value of $0.01 and a liquidation value of $1,000 and additional paid in capital attributable to preferred stock at March 31, 2015 is summarized as follows.
		Rate			Earliest	Shares	Preferred		Additional
					Redemption Date	Outstanding	Shares		Paid in
									Capital
		(Dollars in millions)
	Series C Preferred Stock	9	%		January 31, 2012	266,657	$	3	$	266.7
Schedule of Accumulated Other Comprehensive Income (Loss)	The following table sets forth the components in accumulated other comprehensive income (loss) for available-for-sale securities.
		Available-for-Sale Securities
		(Dollars in millions)
	Accumulated other comprehensive income (loss)
	Balance at December 31, 2014, net of tax	$	8.4
	Net unrealized gain (loss), net of tax	14.9
	Balance at March 31, 2015, net of tax (1)	$	23.3
	Balance at December 31, 2013, net of tax	$	(4.8	)
	Net unrealized gain (loss), net of tax	3.9
	Net realized (loss) gains reclassified into earnings, net of tax	(0.2		)
	Balance at March 31, 2014, net of tax	$	(1.1	)
	-1	For the period ended March 31, 2015, there were no reclassifications out of accumulated other comprehensive income (loss) into earnings.

Earnings_Loss_Per_Share_Tables

Earnings (Loss) Per Share (Tables)	3 Months Ended
	Mar. 31, 2015
Earnings Per Share [Abstract]
Schedule of Earnings (Loss) Per Share, Basic and Diluted	The following table sets forth the computation of basic and diluted (loss) earnings per share of common stock.
		Three Months Ended March 31,
		2015			2014
		(Dollars in millions, except share data)
	Net income (loss)	$	31.5		$	(78.4	)
	Less: preferred stock dividend/accretion	—			(0.5		)
	Net income (loss) from continuing operations	31.5			(78.9		)
	Deferred cumulative preferred stock dividends	(7.3		)	(5.7		)
	Net income (loss) applicable to common stock	$	24.2		$	(84.6	)
	Weighted average shares
	Weighted average common shares outstanding	56,385,454			56,194,184
	Effect of dilutive securities
	Warrants	232,474			—
	Stock-based awards	157,111			—
	Weighted average diluted common shares	56,775,039			56,194,184
	Earnings (loss) per common share
	Net income (loss) applicable to common stock	$	0.43		$	(1.51	)
	Effect of dilutive securities
	Warrants	—			—
	Stock-based awards	—			—
	Diluted earnings (loss) per share	$	0.43		$	(1.51	)

Regulatory_Matters_Tables

Regulatory Matters (Tables)	3 Months Ended
	Mar. 31, 2015
Regulatory Capital Requirements [Abstract]
Schedule of Regulatory Capital Ratios	The following table shows the regulatory capital ratios as of the dates indicated.
	Bancorp	Actual				For Capital Adequacy Purposes				Well Capitalized Under Prompt Corrective Action Provisions
		Amount		Ratio		Amount		Ratio		Amount		Ratio
		(Dollars in millions)
	31-Mar-15
	Tangible capital (to tangible assets)	$	1,257	12.02	%	N/A		N/A		N/A		N/A
	Tier 1 capital (to adjusted tangible assets)	1,257		12.02	%	$	418	4	%	$	523	5	%
	Common equity Tier 1 capital (to RWA)	909		15.38	%	266		4.5	%	384		6.5	%
	Tier 1 capital (to risk weighted assets)	1,257		21.26	%	355		6	%	473		8	%
	Total capital (to risk weighted assets)	1,336		22.61	%	473		8	%	591		10	%
	31-Dec-14
	Tangible capital (to tangible assets)	$	1,184	12.59	%	N/A		N/A		N/A		N/A
	Tier 1 capital (to adjusted tangible assets)	1,184		12.59	%	$	376	4	%	$	470	5	%
	Tier 1 capital (to risk weighted assets)	1,184		22.81	%	208		4	%	311		6	%
	Total capital (to risk weighted assets)	1,252		24.12	%	415		8	%	519		10	%
	N/A - Not applicable.
	-1	On January 1, 2015, the Basel III rules became effective, subject to transition provisions primarily related to regulatory deductions and adjustments impacting common equity Tier 1 capital and Tier 1 capital. The Company and the Bank reported under Basel I (which included the Market Risk Final Rules) at December 31, 2014.
	Bank	Actual				For Capital Adequacy Purposes				Well Capitalized Under Prompt Corrective Action Provisions
		Amount		Ratio		Amount		Ratio		Amount		Ratio
		(Dollars in millions)
	31-Mar-15
	Tangible capital (to tangible assets)	$	1,278	12.21	%	N/A		N/A		N/A		N/A
	Tier 1 capital (to adjusted tangible assets)	1,278		12.21	%	$	419	4	%	$	524	5	%
	Common equity tier 1 capital (to RWA)	1,278		21.58	%	267		4.5	%	385		6.5	%
	Tier 1 capital (to risk weighted assets)	1,278		21.58	%	356		6	%	474		8	%
	Total capital (to risk weighted assets)	1,357		22.91	%	474		8	%	593		10	%
	31-Dec-14
	Tangible capital (to tangible assets)	$	1,167	12.43	%	N/A		N/A		N/A		N/A
	Tier 1 capital (to adjusted tangible assets)	1,167		12.43	%	$	376	4	%	$	470	5	%
	Tier 1 capital (to risk weighted assets)	1,167		22.54	%	207		4	%	311		6	%
	Total capital (to risk weighted assets)	1,235		23.85	%	414		8	%	518		10	%
	-1	On January 1, 2015, the Basel III rules became effective, subject to transition provisions primarily related to regulatory deductions and adjustments impacting common equity Tier 1 capital and Tier 1 capital. The Company and the Bank reported under Basel I (which included the Market Risk Final Rules) at December 31, 2014.

Legal_Proceedings_Contingencie1

Legal Proceedings, Contingencies and Commitments (Tables)	3 Months Ended
	Mar. 31, 2015
Commitments and Contingencies Disclosure [Abstract]
Summary of Contractual Amount of Significant Commitments	A summary of the contractual amount of significant commitments is as follows.
		March 31, 2015		December 31, 2014
		(Dollars in millions)
	Commitments to extend credit
	Mortgage loans (interest-rate lock commitments)	$	3,953	$	2,172
	HELOC trust commitments	101		88
	Other consumer commitments	9		7
	Warehouse loan commitments	663		827
	Standby and commercial letters of credit	10		10
	Other commercial commitments	491		445

Fair_Value_Measurements_Tables

Fair Value Measurements (Tables)	3 Months Ended
	Mar. 31, 2015
Fair Value Disclosures [Abstract]
Schedule of Fair Value, Assets and Liabilities Measured on Recurring Basis	The following tables present the financial instruments carried at fair value as of March 31, 2015 and December 31, 2014, by caption on the Consolidated Statement of Financial Condition and by level in the valuation hierarchy (as described above).
		Level 1				Level 2				Level 3				Total  Fair
														Value
	March 31, 2015	(Dollars in millions)
	Investment securities available-for-sale
	Agency	$	—			$	1,280			$	—			$	1,280
	Agency-collateralized mortgage obligations	—				1,015				—				1,015
	Loans held-for-sale
	Residential first mortgage loans	—				2,044				—				2,044
	Loans held-for-investment
	Residential first mortgage loans	—				26				—				26
	Second mortgage loans	—				—				50				50
	HELOC loans	—				—				113				113
	Mortgage servicing rights	—				—				279				279
	Derivative assets
	Rate lock commitments	—				—				55				55
	U.S. Treasury and euro dollar futures	3				—				—				3
	Mortgage backed securities forwards	1				—				—				1
	Interest rate swaps	—				7				—				7
	Total derivative assets	4				7				55				66
	Other investments	—				—				100				100
	Total assets at fair value	$	4			$	4,372			$	597			$	4,973
	Derivative liabilities
	Forward agency and loans sales	$	—			$	(26	)		$	—			$	(26	)
	Swap futures	(1		)		—				—				(1		)
	Interest rate swaps	—				(8		)		—				(8		)
	Total derivative liabilities	(1		)		(34		)		—				(35		)
	Warrant liabilities	—				(5		)		—				(5		)
	Long-term debt	—				—				(70		)		(70		)
	DOJ litigation settlement	—				—				(82		)		(82		)
	Total liabilities at fair value	$	(1	)		$	(39	)		$	(152	)		$	(192	)
		Level 1				Level 2				Level 3				Total  Fair
														Value
	December 31, 2014	(Dollars in millions)
	Investment securities available-for-sale
	Agency	$	—			$	389			$	—			$	389
	Agency-collateralized mortgage obligations	—				1,281				—				1,281
	Municipal obligations	—				—				2				2
	Loans held-for-sale
	Residential first mortgage loans	—				1,196				—				1,196
	Loans held-for-investment
	Residential first mortgage loans	—				26				—				26
	Second mortgage loans	—				—				53				53
	HELOC loans	—				—				132				132
	Mortgage servicing rights	—				—				258				258
	Derivative assets
	U.S. Treasury and euro dollar futures	7				—				—				7
	Rate lock commitments	—				—				31				31
	Mortgage backed securities forwards	2				—				—				2
	Interest rate swaps	—				6				—				6
	Total derivative assets	9				6				31				46
	Other investments	—				—				100				100
	Total assets at fair value	$	9			$	2,898			$	576			$	3,483
	Derivative liabilities
	Forward agency and loan sales	$	—			$	(13	)		$	—			(13		)
	U.S. Treasury and euro dollar futures	(1		)		—				—				(1		)
	Interest rate swaps	—				(6		)		—				(6		)
	Total derivative liabilities	(1		)		(19		)		—				(20		)
	Warrant liabilities	—				(6		)		—				(6		)
	Long-term debt	—				—				(84		)		(84		)
	DOJ litigation settlement	—				—				(82		)		(82		)
	Total liabilities at fair value	$	(1	)		$	(25	)		$	(166	)		$	(192	)
Fair Value, Assets and Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation	The tables below include a roll forward of the Consolidated Statement of Financial Condition amounts for the three months ended March 31, 2015 and 2014 (including the change in fair value) for financial instruments classified by the Company within level 3 of the valuation hierarchy.
					Recorded in Earnings						Recorded in OCI
	Three Months Ended March 31, 2015	Balance at			Total Unrealized Gains / (Losses)			Total Realized Gains / (Losses)			Total Unrealized Gains / (Losses)			Purchases			Sales			Settlements			Balance at			Changes in Unrealized Gains / (Losses) Held at End of Period (3)
		Beginning of																					End of
		Period																					Period
	Assets	(Dollars in millions)
	Other investments	$	100		$	—		$	—		$	—		$	—		$	—		$	—		$	100		$	—
	Investment securities available-for-sale (1)(2)
	Municipal obligation	2			—			—			—			—			—			(2.0		)	—			—
	Loans held-for-investment
	Second mortgage loans	53.1			—			0.4			—			—			—			(3.1		)	50.4			(0.1		)
	HELOC loans	131.6			(4.1		)	(0.3		)	—			—			—			(14.7		)	112.5			(1.6		)
	Mortgage servicing rights	257.8			(25.5		)	—			—			67.9			(21.6		)	—			278.6			(7.7		)
	Totals	$	544.5		$	(29.6	)	$	0.1		$	—		$	67.9		$	(21.6	)	$	(19.8	)	$	541.5		$	(9.4	)
	Liabilities
	Long-term debt	$	(83.8	)	$	—		$	(1.5	)	$	—		$	—		$	—		$	15.5		$	(69.8	)	$	—
	DOJ litigation settlement	(81.6		)	0.1			—			—			—			—			—			(81.5		)	—
	Totals	$	(165.4	)	$	0.1		$	(1.5	)	$	—		$	—		$	—		$	15.5		$	(151.3	)	$	—
	Derivative financial instruments (net)
	Rate lock commitments	$	30.7		$	37.3		$	—		$	—		$	97.9		$	(97.0	)	$	(14.4	)	$	54.5		$	17.2
	Totals	$	30.7		$	37.3		$	—		$	—		$	97.9		$	(97.0	)	$	(14.4	)	$	54.5		$	17.2
	Three Months Ended March 31, 2014
	Loans held-for-investment
	Second mortgage loans	$	64.7		$	(0.4	)	$	0.4		$	—		$	—		$	—		$	(3.2	)	$	61.5		$	—
	HELOC loans	155			(1.9		)	1.5			—			0.1			—			(4.0		)	150.7			7.3
	Mortgage servicing rights	284.7			(9.6		)	—			—			51			(5.9		)	—			320.2			(4.1		)
	Derivative financial instruments
	Rate lock commitments	10.3			33			—			—			59.1			(64.9		)	(16.2		)	21.3			(0.6		)
	Totals	$	514.7		$	21.1		$	1.9		$	—		$	110.2		$	(70.8	)	$	(23.4	)	$	553.7		$	2.6
	Liabilities
	Long-term debt	$	(105.8	)	$	—		$	(1.3	)	$	—		$	—		$	—		$	5.4		$	(101.7	)	$	1.3
	DOJ litigation settlement	(93.0		)	—			(1.0		)	—			—			—			—			(94.0		)	—
	Totals	$	(198.8	)	$	—		$	(2.3	)	$	—		$	—		$	—		$	5.4		$	(195.7	)	$	1.3
	-1	Realized gains (losses), including unrealized losses deemed other-than-temporary and related to credit issues, are reported in noninterest income.
	-2	U.S. government agency investment securities available-for-sale are valued predominantly using quoted broker/dealer prices with adjustments to reflect for any assumptions a willing market participant would include in its valuation. Non-agency CMOs classified as available-for-sale are valued using internal valuation models and pricing information from third parties.
	-3	Reflects the changes in the unrealized gains (losses) related to financial instruments held at the end of the period.
Fair Value Inputs, Assets and Liabilities Measured on Recurring Basis, Quantitative Information	The following tables present the quantitative information about recurring level 3 fair value financial instruments and the fair value measurements as of March 31, 2015 and December 31, 2014.
		Fair Value			Valuation Technique	Unobservable Input	Range (Weighted Average)
	March 31, 2015	(Dollars in millions)
	Assets
	Second mortgage loans	$	50		Discounted cash flows	Discount rate	7.2% - 10.8% (9.0%)
						Prepay rate - 12 month historical average	9.3% - 13.9% (11.6%)
						CDR rate - 12 month historical average	2.4% - 3.6% (3.0%)
	HELOC loans	$	112		Discounted cash flows	Yield	8.2% - 12.3% (10.2%)
						Weighted average life (CPR)	13.1% - 19.7% (16.4%)
						Weighted average life (CDR)	16.7% - 25.0% (20.8%)
						Discount loss severity	32.1% - 48.2% (40.2%)
	Mortgage servicing rights	$	279		Discounted cash flows	Option adjusted spread	7.0% - 10.5% (8.8%)
						Constant prepayment rate	12.2% - 17.4% (14.9%)
						Weighted average cost to service per loan	$67 - $88 ($78)
	Derivative financial instruments
	Rate lock commitments	$	55		Consensus pricing	Origination pull-through rate	65.3% - 98.0% (81.7%)
	Liabilities
	Long-term debt	$	(70	)	Discounted cash flows	Discount rate	6.5% - 9.7% (8.1%)
						Prepay rate - 3 month historical average	26.2% - 39.3% (32.8%)
						Weighted average life	0.3 - 0.5 (0.4)
	DOJ litigation settlement	$	(82	)	Discounted cash flows	Asset growth rate	4.4% - 6.6% (5.5%)
						MSR growth rate	0.9% - 1.4% (1.2%)
						Return on assets (ROA) improvement	0.02% - 0.04% (0.03%)
						Peer group ROA	0.5% - 0.8% (0.7%)
		Fair Value			Valuation Technique	Unobservable Input	Range (Weighted Average)
	December 31, 2014	(Dollars in millions)
	Assets
	Second mortgage loans	$	53		Discounted cash flows	Discount rate	7.2% - 10.8% (9.0%)
						Prepay rate - 12 month historical average	11.3% - 17.0% (14.2%)
						CDR rate - 12 month historical average	2.4% - 3.6% (3.0%)
	HELOC loans	$	132		Discounted cash flows	Yield	8.0% - 12.0% (10.0%)
						Weighted average life (CPR)	7.2% - 10.8% (9.0%)
						Weighted average life (CDR)	6.6% - 9.9% (8.3%)
						Discount loss severity	60.2% - 90.2% (75.2%)
	Mortgage servicing rights	$	258		Discounted cash flows	Option adjusted spread	7.1% - 10.7% (8.9%)
						Constant prepayment rate	12.2% - 17.1% (15.0%)
						Weighted average cost to service per loan	$67 - $88 ($78)
	Derivative financial instruments
	Rate lock commitments	$	31		Consensus pricing	Origination pull-through rate	66.2% - 99.3% (82.7%)
	Liabilities
	Long-term debt	$	(84	)	Discounted cash flows	Discount rate	6.4% - 9.6% (8.0%)
						Prepay rate - 3 month historical average	16.0% - 24.0% (20.0%)
						Weighted average life	0.5 - 0.7 (0.6)
	DOJ litigation settlement	$	(82	)	Discounted cash flows	Asset growth rate	4.4% - 6.6% (5.5%)
						MSR growth rate	0.9% - 1.4% (1.2%)
						Return on assets (ROA) improvement	0.02% - 0.04% (0.03%)
						Peer group ROA	0.5% - 0.8% (0.7%)
Fair Value Inputs, Assets, Quantitative Information	The key economic assumptions used in determining the fair value of those MSRs capitalized during the three months ended March 31, 2015 and 2014 periods were as follows.
		Three Months Ended March 31,
		2015			2014
	Weighted-average life (in years)	7.3			7.8
	Weighted-average constant prepayment rate	13.6	%		12.2	%
	Weighted-average discount rate	10.8	%		11.8	%
	The key economic assumptions reflected in the overall fair value of the entire portfolio of MSRs were as follows.
		March 31,			December 31,
		2015			2014
	Weighted-average life (in years)	6.7			6.6
	Weighted-average constant prepayment rate	14.9	%		15	%
	Weighted-average discount rate	10.5	%		10.9	%
Fair Value Measurements, Nonrecurring	The Company also has assets that under certain conditions are subject to measurement at fair value on a non-recurring basis. These assets are measured at the lower of cost or fair value and had a fair value below cost at the end of the period as summarized below.
			Level 3
			(Dollars in millions)
	March 31, 2015
	Impaired loans held-for-investment (1)
	Residential first mortgage loans		$	51
	Repossessed assets (2)		16
	Totals		$	67
	December 31, 2014
	Impaired loans held-for-investment (1)
	Residential first mortgage loans		$	74
	Repossessed assets (2)		19
	Totals		$	93
	-1	The Company recorded $3.5 million and $9.9 million in fair value losses on impaired loans (included in provision for loan losses on Consolidated Statements of Operations) during the three months ended March 31, 2015 and 2014, respectively.
	-2	The Company recorded $0.5 million in losses related to write downs of repossessed assets based on the estimated fair value of the specific assets during both the three months ended March 31, 2015 and 2014, and recognized a net loss of $0.2 million and a net gain of $0.8 million on sales of repossessed assets (both write downs and net gains/losses are included in assets resolution expense on the Consolidated Statements of Operations) during the three months ended March 31, 2015 and 2014, respectively
Fair Value, Assets and Liabilities Measured on Nonrecurring Basis, Valuation Techniques	The following tables present the quantitative information about non-recurring level 3 fair value financial instruments and the fair value measurements as of March 31, 2015 and December 31, 2014.
		Fair Value			Valuation Technique	Unobservable Input	Range (Weighted Average)
	March 31, 2015	(Dollars in millions)
	Impaired loans held-for-investment
	Residential first mortgage loans	$	51		Fair value of collateral	Loss severity discount	35.0% - 45.0% (38.2%)
	Repossessed assets	$	16		Fair value of collateral	Loss severity discount	2.6% - 69.2% (45.8%)
		Fair Value			Valuation Technique	Unobservable Input	Range (Weighted Average)
	December 31, 2014	(Dollars in millions)
	Impaired loans held-for-investment
	Residential first mortgage loans	$	74		Fair value of collateral	Loss severity discount	35% - 47% (36.9%)
	Repossessed assets	$	19		Fair value of collateral	Loss severity discount	7% - 100% (45.4%)
Fair Value, by Balance Sheet Grouping	The following tables present the carrying amount and estimated fair value of financial instruments that are carried either at fair value or cost.
		March 31, 2015
						Estimated Fair Value
		Carrying				Total				Level 1				Level 2				Level 3
		Value
		(Dollars in millions)
	Financial Instruments
	Assets
	Cash and cash equivalents	$	241			$	241			$	241			$	—			$	—
	Other investments	100				100				—				—				100
	Investment securities available-for-sale	2,295				2,295				—				2,295				—
	Loans held-for-sale	2,097				2,137				—				2,137				—
	Loans with government guarantees	704				683				—				683				—
	Loans held-for-investment, net	4,378				4,259				—				26				4,233
	Repossessed assets	17				17				—				—				17
	Federal Home Loan Bank stock	155				155				155				—				—
	Mortgage servicing rights	279				279				—				—				279
	Derivative Financial Instruments
	U.S. Treasury and euro dollar futures	3				3				3				—				—
	Rate lock commitments	55				55				—				—				55
	Mortgage back securities forwards	1				1				1				—				—
	Interest rate swaps	7				7				—				7				—
	Liabilities
	Retail deposits
	Demand deposits and savings accounts	(4,819		)		(4,614		)		—				(4,614		)		—
	Certificates of deposit	(775		)		(778		)		—				(778		)		—
	Government deposits	(943		)		(913		)		—				(913		)		—
	Company controlled deposits	(1,012		)		(1,008		)		—				(1,008		)		—
	Federal Home Loan Bank advances	(1,625		)		(1,625		)		(1,625		)		—				—
	Long-term debt	(317		)		(154		)		—				(84		)		(70		)
	Warrant liabilities	(5		)		(5		)		—				(5		)		—
	Litigation settlement	(82		)		(82		)		—				—				(82		)
	Derivative Financial Instruments
	Forward agency and loan sales	(26		)		(26		)		—				(26		)		—
	Customer initiated derivative interest rate swaps	(8		)		(8		)		—				(8		)		—
	Swap futures	(1		)		(1		)		(1		)		—				—
		31-Dec-14
						Estimated Fair Value
		Carrying				Total				Level 1				Level 2				Level 3
		Value
		(Dollars in millions)
	Financial Instruments
	Assets
	Cash and cash equivalents	$	136			$	136			$	136			$	—			$	—
	Other investments	100				100				—				—				100
	Investment securities available-for-sale	1,672				1,672				—				1,670				2
	Loans held-for-sale	1,244				1,196				—				1,196				—
	Loans repurchased with government guarantees	1,128				1,094				—				1,094				—
	Loans held-for-investment, net	4,151				3,998				—				26				3,972
	Repossessed assets	19				19				—				—				19
	Federal Home Loan Bank stock	155				155				155				—				—
	Mortgage servicing rights	258				258				—				—				258
	Derivative Financial Instruments
	Customer initiated derivative interest rate swaps	6				6				—				6				—
	U.S. Treasury futures	7				7				7				—				—
	Forward agency and loan sales	—				—				—				—				—
	Rate lock commitments	31				31				—				—				31
	Agency forwards	2				2				2				—				—
	Liabilities
	Retail deposits
	Demand deposits and savings accounts	(4,565		)		(4,291		)		—				(4,291		)		—
	Certificates of deposit	(813		)		(816		)		—				(816		)		—
	Government accounts	(918		)		(884		)		—				(884		)		—
	Company controlled deposits	(773		)		(770		)		—				(770		)		—
Federal Home Loan Bank advances	(514		)		(514		)		(514		)		—				—
Long-term debt	(331		)		(172		)		—				(88		)		(84		)
Warrant liabilities	(6		)		(6		)		—				(6		)		—
Litigation settlement	(82		)		(82		)		—				—				(82		)
Derivative Financial Instruments
Customer initiated derivative interest rate swaps	(6		)		(6		)		—				(6		)		—
U.S. Treasury futures	(1		)		(1		)		(1		)		—				—
Forward agency and loan sales	(13		)		(13		)		—				(13		)		—
Schedule of Changes in Fair Value Included in Earnings	The following table reflects the change in fair value included in earnings (and the account recorded in) for the assets and liabilities for which the fair value option has been elected.
			Three Months Ended March 31,
			2015				2014
	Assets		(Dollars in millions)
	Loans held-for-sale
		Net gain on loan sales	$	105.2			$	63
	Loans held-for-investment
		Interest income on loans	$	3.3			$	—
		Other noninterest income	(20.3		)		(4.3		)
	Liabilities
	Long-term debt
		Other noninterest income	$	14.7			$	4.1
	Litigation settlement
		Other noninterest expense	$	(0.1	)		$	(1.0	)
Fair Value, Option, Quantitative Disclosures	The following table reflects the difference between the aggregate fair value and aggregate remaining contractual principal balance outstanding as of March 31, 2015 and December 31, 2014 for assets and liabilities for which the fair value option has been elected.
			March 31, 2015										December 31, 2014
			(Dollars in millions)
			Unpaid Principal Balance			Fair Value			Fair Value Over / (Under) Unpaid Principal Balance			Unpaid Principal Balance				Fair Value			Fair Value Over / (Under) Unpaid Principal Balance
	Assets
		Nonaccrual loans
		Loans held-for-sale	$	—		$	—		$	—			$	—		$	—		$	—
	Loans held-for-investment		12			5			(7		)		11			5			(6		)
	Total nonaccrual loans		$	12		$	5		(7		)		$	11		$	5		$	(6	)
	Other performing loans
	Loans held-for-sale		$	1,957		$	2,044		$	87			$	1,144		$	1,196		$	52
	Loans held-for-investment		204			184			(20		)		225			206			(19		)
	Total other performing loans		$	2,161		$	2,228		$	67			$	1,369		$	1,402		$	33
	Total loans
	Loans held-for-sale		$	1,957		$	2,044		$	87			$	1,144		$	1,196		$	52
	Loans held-for-investment		216			189			(27		)		236			211			(25		)
	Total loans		$	2,173		$	2,233		$	60			$	1,380		$	1,407		$	27
	Liabilities
	Long-term debt		$	(72	)	$	(70	)	$	2			$	(88	)	$	(84	)	$	4
	Litigation settlement		N/A (1)			(82		)	N/A (1)				N/A (1)			(82		)	N/A (1)
	-1	Remaining principal outstanding is not applicable to the litigation settlement because it does not obligate the Company to return a stated amount of principal at maturity, but instead return $118 million based upon performance on the underlying terms in the Agreement.

Segment_Information_Tables

Segment Information (Tables)	3 Months Ended
	Mar. 31, 2015
Segment Reporting [Abstract]
Schedule of Segment Reporting Information, by Segment	The following tables present financial information by business segment for the periods indicated.
		Three Months Ended March 31, 2015
		Mortgage Origination			Mortgage Servicing			Community Banking			Other			Total
	Summary of Operations	(Dollars in millions)
	Net interest income	$	16.2		$	3.5		$	38.4		$	6.8		$	64.9
	Net gain on loan sales	96.1			—			(4.8		)	—			91.3
	Representation and warranty reserve - change in estimate	—			1.5			—			—			1.5
	Other noninterest income	16.6			13.4			6.7			(11.2		)	25.5
	Total net interest income and noninterest income	128.9			18.4			40.3			(4.4		)	183.2
	Provision for loan losses	—			—			3.5			—			3.5
	Asset resolution	—			(7.0		)	(0.8		)	—			(7.8		)
	Depreciation and amortization expense	(0.5		)	(0.8		)	(1.3		)	(2.9		)	(5.5		)
	Other noninterest expense	(55.3		)	(27.2		)	(38.8		)	(2.4		)	(123.7		)
	Total noninterest expense	(55.8		)	(35.0		)	(40.9		)	(5.3		)	(137.0		)
	Income (loss) before federal income taxes	73.1			(16.6		)	2.9			(9.7		)	49.7
	Provision for federal income taxes	—			—			—			18.2			18.2
	Net income (loss)	$	73.1		$	(16.6	)	$	2.9		$	(27.9	)	$	31.5
	Intersegment revenue	$	7.7		$	2.5		$	(4.9	)	$	(5.3	)	$	—
	Average balances
	Loans held-for-sale	$	1,801		$	—		$	41		$	—		$	1,842
	Loans with government guarantees	—			865			—			—			865
	Loans held-for-investment	—			—			4,167			126			4,293
	Total assets	1,974			1,170			4,106			3,606			10,856
	Interest-bearing deposits	—			—			5,985			—			5,985
		Three Months Ended March 31, 2014
		Mortgage Origination			Mortgage Servicing			Community Banking			Other			Total
	Summary of Operations	(Dollars in millions)
	Net interest income (loss)	$	12.2		$	5.4		$	34.7		$	5.9		$	58.2
	Net gain on loan sales	47.4			—			(2.1		)	—			45.3
	Representation and warranty reserve - change in estimate	—			1.7			—			—			1.7
	Other noninterest income	12			13.1			(13.5		)	16.4			28
	Total net interest income and noninterest income	71.6			20.2			19.1			22.3			133.2
	Provision for loan losses	—			—			(112.3		)	—			(112.3		)
	Asset resolution	—			(10.8		)	(0.7		)	—			(11.5		)
	Depreciation and amortization expense	(0.2		)	(1.6		)	(1.1		)	(2.9		)	(5.8		)
	Other noninterest expense	(53.5		)	(22.9		)	(42.1		)	(3.5		)	(122.0		)
	Total noninterest expense	(53.7		)	(35.3		)	(43.9		)	(6.4		)	(139.3		)
	Income (loss) before federal income taxes	17.9			(15.1		)	(137.1		)	15.9			(118.4		)
	Benefit for federal income taxes	—			—			—			(40.0		)	(40.0		)
	Net income (loss)	$	17.9		$	(15.1	)	$	(137.1	)	$	55.9		$	(78.4	)
	Intersegment revenue	$	3.8		$	5		$	(2.1	)	$	(6.7	)	$	—
	Average balances
	Loans held-for-sale	$	1,219		$	—		$	78		$	—		$	1,297
	Loans with government guarantees	—			1,270			—			—			1,270
	Loans held-for-investment	—			—			3,864			—			3,864
	Total assets	1,363			1,415			3,928			2,602			9,308
	Interest-bearing deposits	—			—			5,230			—			5,230

Restatement_of_Consolidated_St1

Restatement of Consolidated Statements of Cash Flows (Tables)	3 Months Ended
	Mar. 31, 2015
Accounting Changes and Error Corrections [Abstract]
Schedule of Restatement of Consolidated Statements of Cash Flows	For a comparison of the as stated and restated amounts for the period ended March 31, 2014, see below.
		Three Months Ended March 31,
		2014
		(Unaudited)			(Unaudited)
		As Restated			As Reported
	Operating Activities
	Net loss	$	(78.4	)	$	(78.4	)
	Adjustments to reconcile net loss to net cash used in operating activities:
	Provision for loan losses	112.3			112.3
	Representation and warranty provision	(1.7		)	(1.7		)
	Depreciation and amortization	5.6			5.8
	Loss on fair value of mortgage servicing rights	*			9.6
	Loss on fair value of long term debt	*			1.3
	Deferred income taxes	(36.7		)	*
	Changes in fair value of MSRs, DOJ litigation settlement liability and long-term debt	11.9			*
	Premium, change in fair value, and other non-cash changes	(136.2		)	*
	Net transaction costs on sales of mortgage servicing rights	*			(3.6		)
	Net gain on investment securities	*			(0.2		)
	Net gain on loan and asset sales	(48.4		)	(48.3		)
	Net change in:
	Proceeds from sales of loans held-for-sale ("HFS")	3,032.80			3,555.70
	Origination and repurchase of loans, net of principal repayments	(4,686.4		)	(5,296.0		)
	Decrease in repurchase loans with government guarantees, net of claims received	*			7
	Decrease in accrued interest receivable	(3.2		)	(3.2		)
	Decrease in other assets, excludes purchase of other investments	14.4			(16.1		)
	Increase in payable for mortgage repurchase option	*			(5.0		)
	Net charge-offs in representation and warranty reserve	(5.6		)	(5.6		)
	Decrease in other liabilities	(41.9		)	(41.2		)
	Net cash used in operating activities	(1,861.5		)	(1,807.6		)
	Investing Activities
	Proceeds from sale of available for sale securities including loans that have been securitized	1,909.00			*
	Proceeds received from sale of investment securities available-for-sale	*			1,846.30
	Collection of principal on investment securities available-for-sale	30.9			*
	Repayment of investment securities available-for-sale	*			30.7
	Purchase of investment securities available-for-sale and other	(205.6		)	(205.5		)
	Proceeds received from the sale of held-for-investment loans ("HFI")	35.1			*
	Origination and purchase of loans HFI, net of principal repayments	(312.6		)	*
	Net change from sales of loans held-for-investment	*			(276.4		)
	Principal repayments net of origination of loans held-for-investment	*			13.8
	Proceeds from the disposition of repossessed assets	10			10
	Acquisitions of premises and equipment, net of proceeds	(7.8		)	(7.8		)
	Proceeds from the sale of mortgage servicing rights	11.7			5.7
	Net cash provided by investing activities	1,470.70			1,416.80
	Financing Activities
	Net increase in deposit accounts	170			170
	Net increase in Federal Home Loan Bank Advances	*			137
	Proceeds from increases in Federal Home Loan Bank Advances	4,332.00			*
	Repayment of Federal Home Loan Bank advances	(4,195.0		)	*
	Repayment of trust preferred securities and long-term debt	(5.4		)	(5.4		)
	Net receipt of payments of loans serviced for others	24.9			24.9
	Net receipt of escrow payments	3			3
	Net cash provided by financing activities	329.5			329.5
	Net decrease in cash and cash equivalents	(61.3		)	(61.3		)
	Beginning cash and cash equivalents	280.5			280.5
	Ending cash and cash equivalents	$	219.2		$	219.2
	Supplemental disclosure of cash flow information
	Interest paid on deposits and other borrowings	$	6.4		$	6.2
	Income tax payments	$	—		$	0.3
	Non-cash reclassification of loans originated HFI to loans HFS	$	308.3		$	281
	Non-cash reclassification of mortgage loans originated HFS to HFI	$	4.6		$	4.6
	Non-cash reclassification of mortgage loans HFS to AFS securities	$	1,889.10		*
	Mortgage servicing rights resulting from sale or securitization of loans	$	51		$	51
	Loans held-for-investment transferred to repossessed assets	*			$	16
	* Line item caption changes. Activity has been reported under a new caption.

Basis_of_Presentation_and_Acco2

Basis of Presentation and Accounting Standards - Narrative (Details) (Accounting Standards Update 2014-14, USD $)	Mar. 31, 2015	Dec. 31, 2014
In Millions, unless otherwise specified
Accounting Standards Update 2014-14
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Non-cash reclassification of loans with government guarantee to other assets	$329	$373

Investment_Securities_Details

Investment Securities (Details) (USD $)	Mar. 31, 2015	Dec. 31, 2014
In Millions, unless otherwise specified
Schedule of Trading and Available-for-sale Securities [Line Items]
Amortized Cost	$2,261	$1,661
Gross Unrealized Gains	36	14
Gross Unrealized Losses	-2	-3
Fair Value	2,295	1,672
Agency
Schedule of Trading and Available-for-sale Securities [Line Items]
Amortized Cost	398	925
Gross Unrealized Gains	8	6
Gross Unrealized Losses	0	-2
Fair Value	406	929
Agency-collateralized mortgage obligations
Schedule of Trading and Available-for-sale Securities [Line Items]
Amortized Cost	1,863	734
Gross Unrealized Gains	28	8
Gross Unrealized Losses	-2	-1
Fair Value	1,889	741
Municipal obligations
Schedule of Trading and Available-for-sale Securities [Line Items]
Amortized Cost		2
Gross Unrealized Gains		0
Gross Unrealized Losses		0
Fair Value		$2

Investment_Securities_Availabl

Investment Securities (Available-for-sale Securities, Unrealized Losses) (Details) (USD $)	3 Months Ended
	Mar. 31, 2015	Mar. 31, 2014	Dec. 31, 2014
			security
Schedule of Available-for-sale Securities [Line Items]
Purchase of investment securities available-for-sale	$652,000,000
Sales of available-for-sale securities	2,706,200,000
Gain on available-for-sale securities		200,000
US Government-sponsored Enterprises Debt Securities
Schedule of Available-for-sale Securities [Line Items]
Purchase of investment securities available-for-sale	652,000,000	206,900,000
Agency
Schedule of Available-for-sale Securities [Line Items]
Available-for-sale Securities, Unrealized Loss Position with Duration 12 Months and Over, Fair Value	0		53,000,000
Available-for-sale Securities, Unrealized Loss Position with Duration 12 Months and Over, Number of Securities	0		6
Available-for-sale Securities, Unrealized Loss Position with Duration 12 Months and Over, Unrealized Loss	0		0
Available-for-Sale Securities, Unrealized Loss Position with Duration Under 12 Months, Fair Value	10,000,000		305,000,000
Available-for-Sale Securities, Unrealized Loss Position with Duration Under 12 Months, Number of Securities	1		21
Available-for-Sale Securities, Unrealized Loss Position with Duration Under 12 Months, Unrealized Loss	0		-2,000,000
Agency-collateralized mortgage obligations
Schedule of Available-for-sale Securities [Line Items]
Available-for-sale Securities, Unrealized Loss Position with Duration 12 Months and Over, Fair Value	37,000,000		98,000,000
Available-for-sale Securities, Unrealized Loss Position with Duration 12 Months and Over, Number of Securities	6		10
Available-for-sale Securities, Unrealized Loss Position with Duration 12 Months and Over, Unrealized Loss	-1,000,000		-1,000,000
Available-for-Sale Securities, Unrealized Loss Position with Duration Under 12 Months, Fair Value	254,000,000		38,000,000
Available-for-Sale Securities, Unrealized Loss Position with Duration Under 12 Months, Number of Securities	14		4
Available-for-Sale Securities, Unrealized Loss Position with Duration Under 12 Months, Unrealized Loss	-1,000,000		0
U.S. government sponsored agencies
Schedule of Available-for-sale Securities [Line Items]
Sales of available-for-sale securities	0	18,700,000
Municipal obligations
Schedule of Available-for-sale Securities [Line Items]
Available-for-sale Securities, Maturities in Period	$2,000,000

Loans_HeldforSale_Details

Loans Held-for-Sale (Details) (USD $)	3 Months Ended
In Millions, unless otherwise specified	Mar. 31, 2015	Mar. 31, 2014	Dec. 31, 2014
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans held-for-sale	$2,097		$1,244
Gain on sale of mortgage loans	91.3	45.3
Loans held-for-sale, other	53		48
Consumer loans | Residential first mortgage
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans held-for-sale	$2,100		$1,200

Loans_with_Government_Guarante1

Loans with Government Guarantees (Details) (USD $)	3 Months Ended
In Millions, unless otherwise specified	Mar. 31, 2015	Dec. 31, 2014
Accounts, Notes, Loans and Financing Receivable [Line Items]
Debt instrument, term (in years)	10 years
Loans with government guarantees	$704	$1,128
Accounting Standards Update 2014-14
Accounts, Notes, Loans and Financing Receivable [Line Items]
Non-cash reclassification of loans with government guarantee to other assets	$329	$373

Loans_HeldforInvestment_Detail

Loans Held-for-Investment (Details) (USD $)	3 Months Ended
	Mar. 31, 2015	Mar. 31, 2014	Dec. 31, 2014
Loans and Leases Receivable, Net Amount [Abstract]
Total Investment Loans	$4,631,000,000		$4,448,000,000
Less allowance for loan losses	-253,000,000		-297,000,000
Total loans held-for-investment, net	4,378,000,000		4,151,000,000
Financing Receivable, Modifications, Recorded Investment	139,000,000		408,000,000
Increase (Decrease) in Allowance at Modification	500,000	600,000
Residential first mortgage
Loans and Leases Receivable, Net Amount [Abstract]
Total Investment Loans	2,013,000,000		2,194,000,000
Second mortgage
Loans and Leases Receivable, Net Amount [Abstract]
Total Investment Loans	146,000,000		149,000,000
HELOC trust commitments
Loans and Leases Receivable, Net Amount [Abstract]
Total Investment Loans	316,000,000		256,000,000
Other
Loans and Leases Receivable, Net Amount [Abstract]
Total Investment Loans	30,000,000		31,000,000
Consumer loans
Loans and Leases Receivable, Net Amount [Abstract]
Total Investment Loans	2,505,000,000		2,630,000,000
Allowance for Credit Losses, Change in Method of Calculating Impairment	23,000,000		81,000,000
Commercial real estate
Loans and Leases Receivable, Net Amount [Abstract]
Total Investment Loans	635,000,000		620,000,000
Commercial and industrial
Loans and Leases Receivable, Net Amount [Abstract]
Total Investment Loans	408,000,000		429,000,000
Warehouse lending
Loans and Leases Receivable, Net Amount [Abstract]
Total Investment Loans	1,083,000,000		769,000,000
Commercial loans
Loans and Leases Receivable, Net Amount [Abstract]
Total Investment Loans	2,126,000,000		1,818,000,000
Residential first mortgage
Loans and Leases Receivable, Net Amount [Abstract]
Increase (Decrease) in Allowance at Modification		-2,300,000
Receivables Held-for-sale, Amount	331,000,000
Unpaid principal balance		313,000,000
Reserve Amount	30,000,000
Gain (loss) on sale from transfer of loans to held-for-sale	-400,000	1,400,000
Loans held-for-investment
Loans and Leases Receivable, Net Amount [Abstract]
Loans pledged as collateral	4,600,000,000		4,100,000,000
Residential first mortgage
Loans and Leases Receivable, Net Amount [Abstract]
Increase (Decrease) in Allowance at Modification	600,000	600,000
Unpaid principal balance	291,000,000
Residential first mortgage | Consumer loans
Loans and Leases Receivable, Net Amount [Abstract]
Financing Receivable, Modifications, Recorded Investment	82,000,000		350,000,000
Allowance for Credit Losses, Change in Method of Calculating Impairment			76,000,000
Increase (Decrease) in Allowance at Modification	($36,000,000)

Loans_HeldforInvestment_Allowa

Loans Held-for-Investment (Allowance for Loan Losses Rollforward) (Details) (USD $)	3 Months Ended
In Millions, unless otherwise specified	Mar. 31, 2015	Mar. 31, 2014
Allowance for Loan Losses [Roll Forward]
Beginning balance allowance for loan losses	$297	$207
Charge-offs	-43.2	-15.1
Recoveries	2.7	2.8
Provision (benefit)	-3.5	112.3
Ending balance allowance for loan losses	253	307
Residential first mortgage
Allowance for Loan Losses [Roll Forward]
Beginning balance allowance for loan losses	234.3	161.2
Charge-offs	-40.8	-10.8
Recoveries	0.3	1.2
Provision (benefit)	-6.4	104.8
Ending balance allowance for loan losses	187.4	256.4
Second mortgage
Allowance for Loan Losses [Roll Forward]
Beginning balance allowance for loan losses	12.4	12.1
Charge-offs	-0.8	-1.1
Recoveries	0.1	0.1
Provision (benefit)	0.3	2.3
Ending balance allowance for loan losses	12	13.4
HELOC trust commitments
Allowance for Loan Losses [Roll Forward]
Beginning balance allowance for loan losses	18.7	7.9
Charge-offs	-0.9	-2.7
Recoveries	0.1	0
Provision (benefit)	3.3	6.3
Ending balance allowance for loan losses	21.2	11.5
Other
Allowance for Loan Losses [Roll Forward]
Beginning balance allowance for loan losses	0.8	2.4
Charge-offs	-0.7	-0.5
Recoveries	0.5	0.3
Provision (benefit)	-0.2	-0.8
Ending balance allowance for loan losses	0.4	1.4
Commercial real estate
Allowance for Loan Losses [Roll Forward]
Beginning balance allowance for loan losses	17.4	18.5
Charge-offs	0	0
Recoveries	1.7	1.1
Provision (benefit)	-2.9	-1.5
Ending balance allowance for loan losses	16.2	18.1
Commercial and industrial
Allowance for Loan Losses [Roll Forward]
Beginning balance allowance for loan losses	10.7	3.5
Charge-offs	0	0
Recoveries	0	0.1
Provision (benefit)	1.3	1.1
Ending balance allowance for loan losses	12	4.7
Warehouse lending
Allowance for Loan Losses [Roll Forward]
Beginning balance allowance for loan losses	2.7	1.4
Charge-offs	0	0
Recoveries	0	0
Provision (benefit)	1.1	0.1
Ending balance allowance for loan losses	$3.80	$1.50

Loans_HeldforInvestment_Allowa1

Loans Held-for-Investment (Allowance Additional Disclosure) (Details) (USD $)	3 Months Ended
In Millions, unless otherwise specified	Mar. 31, 2015	Mar. 31, 2014	Dec. 31, 2014	Dec. 31, 2013
Allowance for Loan Losses [Line Items]
Increase (Decrease) in Allowance at Modification	$0.50	$0.60
Individually evaluated	148		417
Collectively evaluated	4,294		3,820
Total loans	4,442		4,237
Individually evaluated	22.4		88.5
Collectively evaluated	230.6		208.5
Total allowance for loan losses	253	307	297	207
Residential first mortgage
Allowance for Loan Losses [Line Items]
Individually evaluated	116		385
Collectively evaluated	1,871		1,782
Total loans	1,987		2,167
Individually evaluated	15.9		81.8
Collectively evaluated	171.5		152.5
Total allowance for loan losses	187.4	256.4	234.3	161.2
Second mortgage
Allowance for Loan Losses [Line Items]
Individually evaluated	31		31
Collectively evaluated	65		65
Total loans	96		96
Individually evaluated	5.5		5.6
Collectively evaluated	6.5		6.8
Total allowance for loan losses	12	13.4	12.4	12.1
HELOC trust commitments
Allowance for Loan Losses [Line Items]
Individually evaluated	1		1
Collectively evaluated	202		124
Total loans	203		125
Individually evaluated	0.9		1
Collectively evaluated	20.3		17.7
Total allowance for loan losses	21.2	11.5	18.7	7.9
Other
Allowance for Loan Losses [Line Items]
Individually evaluated	0		0
Collectively evaluated	30		31
Total loans	30		31
Individually evaluated	0.1		0.1
Collectively evaluated	0.3		0.7
Total allowance for loan losses	0.4	1.4	0.8	2.4
Commercial real estate
Allowance for Loan Losses [Line Items]
Individually evaluated	0		0
Collectively evaluated	635		620
Total loans	635		620
Individually evaluated	0		0
Collectively evaluated	16.2		17.4
Total allowance for loan losses	16.2	18.1	17.4	18.5
Commercial and industrial
Allowance for Loan Losses [Line Items]
Individually evaluated	0		0
Collectively evaluated	408		429
Total loans	408		429
Individually evaluated	0		0
Collectively evaluated	12		10.7
Total allowance for loan losses	12	4.7	10.7	3.5
Warehouse lending
Allowance for Loan Losses [Line Items]
Individually evaluated	0		0
Collectively evaluated	1,083		769
Total loans	1,083		769
Individually evaluated	0		0
Collectively evaluated	3.8		2.7
Total allowance for loan losses	3.8	1.5	2.7	1.4
Residential first mortgage
Allowance for Loan Losses [Line Items]
Increase (Decrease) in Allowance at Modification	0.6	0.6
Residential first mortgage | Consumer loans
Allowance for Loan Losses [Line Items]
Increase (Decrease) in Allowance at Modification	($36)

Loans_HeldforInvestment_Past_D

Loans Held-for-Investment (Past Due Loans) (Details) (USD $)	3 Months Ended
	Mar. 31, 2015	Mar. 31, 2014	Dec. 31, 2014
Loans, Aging [Abstract]
30-59 Days Past Due	$22,000,000		$34,000,000
60-89 Days Past Due	8,000,000		10,000,000
90 Days or Greater Past Due	84,000,000		120,000,000
Total Past Due	114,000,000		164,000,000
Current	4,517,000,000		4,284,000,000
Total Investment Loans	4,631,000,000		4,448,000,000
Loans greater than 90 days past due accounted for under the fair value option	5,000,000		5,000,000
Nonaccrual status	103,000,000	118,000,000	135,000,000
Accrued interest on nonaccrual loans	1,400,000	1,800,000
90 Days and Still Accruing	0		0
Residential first mortgage
Loans, Aging [Abstract]
30-59 Days Past Due	17,000,000		29,000,000
60-89 Days Past Due	6,000,000		9,000,000
90 Days or Greater Past Due	78,000,000		115,000,000
Total Past Due	101,000,000		153,000,000
Current	1,912,000,000		2,041,000,000
Total Investment Loans	2,013,000,000		2,194,000,000
Second mortgage
Loans, Aging [Abstract]
30-59 Days Past Due	1,000,000		1,000,000
60-89 Days Past Due	0		0
90 Days or Greater Past Due	2,000,000		2,000,000
Total Past Due	3,000,000		3,000,000
Current	143,000,000		146,000,000
Total Investment Loans	146,000,000		149,000,000
HELOC trust commitments
Loans, Aging [Abstract]
30-59 Days Past Due	4,000,000		4,000,000
60-89 Days Past Due	2,000,000		1,000,000
90 Days or Greater Past Due	4,000,000		3,000,000
Total Past Due	10,000,000		8,000,000
Current	306,000,000		248,000,000
Total Investment Loans	316,000,000		256,000,000
Other
Loans, Aging [Abstract]
30-59 Days Past Due	0		0
60-89 Days Past Due	0		0
90 Days or Greater Past Due	0		0
Total Past Due	0		0
Current	30,000,000		31,000,000
Total Investment Loans	30,000,000		31,000,000
Warehouse lending
Loans, Aging [Abstract]
30-59 Days Past Due	0		0
60-89 Days Past Due	0		0
90 Days or Greater Past Due	0		0
Total Past Due	0		0
Current	1,083,000,000		769,000,000
Total Investment Loans	1,083,000,000		769,000,000
Consumer loans
Loans, Aging [Abstract]
30-59 Days Past Due	22,000,000		34,000,000
60-89 Days Past Due	8,000,000		10,000,000
90 Days or Greater Past Due	84,000,000		120,000,000
Total Past Due	114,000,000		164,000,000
Current	2,391,000,000		2,466,000,000
Total Investment Loans	2,505,000,000		2,630,000,000
Commercial real estate
Loans, Aging [Abstract]
30-59 Days Past Due	0		0
60-89 Days Past Due	0		0
90 Days or Greater Past Due	0		0
Total Past Due	0		0
Current	635,000,000		620,000,000
Total Investment Loans	635,000,000		620,000,000
Commercial and industrial
Loans, Aging [Abstract]
30-59 Days Past Due	0		0
60-89 Days Past Due	0		0
90 Days or Greater Past Due	0		0
Total Past Due	0		0
Current	408,000,000		429,000,000
Total Investment Loans	408,000,000		429,000,000
Commercial loans
Loans, Aging [Abstract]
30-59 Days Past Due	0		0
60-89 Days Past Due	0		0
90 Days or Greater Past Due	0		0
Total Past Due	0		0
Current	2,126,000,000		1,818,000,000
Total Investment Loans	$2,126,000,000		$1,818,000,000

Loans_HeldforInvestment_Troubl

Loans Held-for-Investment (Troubled Debt Restructurings) (Details) (USD $)	Mar. 31, 2015	Dec. 31, 2014
In Millions, unless otherwise specified
Troubled Debt Restructurings [Line Items]
TDR Balance	$139	$408
TDR loans under fair value option	30	30
Performing
Troubled Debt Restructurings [Line Items]
TDR Balance	111	362
Nonperforming
Troubled Debt Restructurings [Line Items]
TDR Balance	28	46
Consumer loans
Troubled Debt Restructurings [Line Items]
Allowance for loan losses on TDR loans	23	81
Consumer loans | Residential first mortgage
Troubled Debt Restructurings [Line Items]
TDR Balance	82	350
Allowance for loan losses on TDR loans		76
Consumer loans | Residential first mortgage | Performing
Troubled Debt Restructurings [Line Items]
TDR Balance	57	307
Consumer loans | Residential first mortgage | Nonperforming
Troubled Debt Restructurings [Line Items]
TDR Balance	25	43
Consumer loans | Second mortgage
Troubled Debt Restructurings [Line Items]
TDR Balance	36	37
Consumer loans | Second mortgage | Performing
Troubled Debt Restructurings [Line Items]
TDR Balance	35	35
Consumer loans | Second mortgage | Nonperforming
Troubled Debt Restructurings [Line Items]
TDR Balance	1	2
Consumer loans | HELOC trust commitments
Troubled Debt Restructurings [Line Items]
TDR Balance	21	21
Consumer loans | HELOC trust commitments | Performing
Troubled Debt Restructurings [Line Items]
TDR Balance	19	20
Consumer loans | HELOC trust commitments | Nonperforming
Troubled Debt Restructurings [Line Items]
TDR Balance	$2	$1

Loans_HeldforInvestment_Troubl1

Loans Held-for-Investment (Troubled Debt Restructuring Detail) (Details) (USD $)	3 Months Ended
In Millions, unless otherwise specified	Mar. 31, 2015	Mar. 31, 2014
	loan	loan
Troubled Debt Restructurings [Line Items]
Number of Accounts	183	128
Pre-Modification Unpaid Principal Balance	$32	$10.40
Post-Modification Unpaid Principal Balance	30.6	9.9
Increase (Decrease) in Allowance at Modification	0.5	0.6
Residential first mortgage
Troubled Debt Restructurings [Line Items]
Number of Accounts	114	25
Pre-Modification Unpaid Principal Balance	30.5	7
Post-Modification Unpaid Principal Balance	28.7	6.7
Increase (Decrease) in Allowance at Modification	0.6	0.6
Second mortgage
Troubled Debt Restructurings [Line Items]
Number of Accounts	33	94
Pre-Modification Unpaid Principal Balance	1.3	3
Post-Modification Unpaid Principal Balance	1.2	2.9
Increase (Decrease) in Allowance at Modification	-0.1	0
HELOC trust commitments
Troubled Debt Restructurings [Line Items]
Number of Accounts	36	9
Pre-Modification Unpaid Principal Balance	0.2	0.4
Post-Modification Unpaid Principal Balance	0.7	0.3
Increase (Decrease) in Allowance at Modification	$0	$0

Loans_HeldforInvestment_Impair

Loans Held-for-Investment (Impaired Loans) (Details) (USD $)	3 Months Ended
In Millions, unless otherwise specified	Mar. 31, 2015	Mar. 31, 2014	Dec. 31, 2014
Impaired Loans [Line Items]
With no related allowance recorded, Recorded Investment	$41		$64
With no related allowance recorded, unpaid principal balance	53		85
With an allowance recorded, recorded investment	105		351
With an allowance recorded, unpaid principal balance	111		355
With an allowance recorded, related allowance	23		89
Total recorded investment	146		415
Total unpaid principal balance	164		440
Total related allowance	23		89
Average Recorded Investment	338.7	440.6
Interest Income Recognized	2.5	2.8
Commercial real estate
Impaired Loans [Line Items]
Average Recorded Investment	0.4	2
Interest Income Recognized	0	0
Residential first mortgage
Impaired Loans [Line Items]
With no related allowance recorded, Recorded Investment	40		63
With no related allowance recorded, unpaid principal balance	46		78
With an allowance recorded, recorded investment	75		321
With an allowance recorded, unpaid principal balance	81		325
With an allowance recorded, related allowance	16		82
Total recorded investment	115		384
Total unpaid principal balance	127		403
Total related allowance	16		82
Average Recorded Investment	306.7	413.2
Interest Income Recognized	2.1	2.6
Second mortgage
Impaired Loans [Line Items]
With no related allowance recorded, Recorded Investment	1		1
With no related allowance recorded, unpaid principal balance	6		6
With an allowance recorded, recorded investment	29		29
With an allowance recorded, unpaid principal balance	29		29
With an allowance recorded, related allowance	6		6
Total recorded investment	30		30
Total unpaid principal balance	35		35
Total related allowance	6		6
Average Recorded Investment	30.8	25.2
Interest Income Recognized	0.4	0.2
HELOC trust commitments
Impaired Loans [Line Items]
With no related allowance recorded, Recorded Investment	0		0
With no related allowance recorded, unpaid principal balance	1		1
With an allowance recorded, recorded investment	1		1
With an allowance recorded, unpaid principal balance	1		1
With an allowance recorded, related allowance	1		1
Total recorded investment	1		1
Total unpaid principal balance	2		2
Total related allowance	1		1
Average Recorded Investment	0.8	0.2
Interest Income Recognized	$0	$0

Loans_HeldforInvestment_Credit

Loans Held-for-Investment (Credit Quality Indicators) (Details) (USD $)	Mar. 31, 2015	Dec. 31, 2014
In Millions, unless otherwise specified
Loans held-for-investment [Line Items]
Loans held-for-investment	$4,442	$4,237
Loans and Leases Receivable, Net of Deferred Income	4,631	4,448
Commercial real estate
Loans held-for-investment [Line Items]
Loans held-for-investment	635	620
Loans and Leases Receivable, Net of Deferred Income	635	620
Commercial real estate | Pass
Loans held-for-investment [Line Items]
Loans held-for-investment	596	578
Commercial real estate | Watch
Loans held-for-investment [Line Items]
Loans held-for-investment	29	29
Commercial real estate | Special mention
Loans held-for-investment [Line Items]
Loans held-for-investment	7	2
Commercial real estate | Substandard
Loans held-for-investment [Line Items]
Loans held-for-investment	3	11
Commercial and industrial
Loans held-for-investment [Line Items]
Loans held-for-investment	408	429
Loans and Leases Receivable, Net of Deferred Income	408	429
Commercial and industrial | Pass
Loans held-for-investment [Line Items]
Loans held-for-investment	350	399
Commercial and industrial | Watch
Loans held-for-investment [Line Items]
Loans held-for-investment	19	10
Commercial and industrial | Special mention
Loans held-for-investment [Line Items]
Loans held-for-investment	14	0
Commercial and industrial | Substandard
Loans held-for-investment [Line Items]
Loans held-for-investment	25	20
Warehouse lending
Loans held-for-investment [Line Items]
Loans held-for-investment	1,083	769
Loans and Leases Receivable, Net of Deferred Income	1,083	769
Warehouse lending | Pass
Loans held-for-investment [Line Items]
Loans held-for-investment	937	650
Warehouse lending | Watch
Loans held-for-investment [Line Items]
Loans held-for-investment	117	119
Warehouse lending | Special mention
Loans held-for-investment [Line Items]
Loans held-for-investment	29	0
Warehouse lending | Substandard
Loans held-for-investment [Line Items]
Loans held-for-investment	0	0
Commercial loans
Loans held-for-investment [Line Items]
Loans held-for-investment	2,126	1,818
Loans and Leases Receivable, Net of Deferred Income	2,126	1,818
Commercial loans | Pass
Loans held-for-investment [Line Items]
Loans held-for-investment	1,883	1,627
Commercial loans | Watch
Loans held-for-investment [Line Items]
Loans held-for-investment	165	158
Commercial loans | Special mention
Loans held-for-investment [Line Items]
Loans held-for-investment	50	2
Commercial loans | Substandard
Loans held-for-investment [Line Items]
Loans held-for-investment	28	31
Residential first mortgage
Loans held-for-investment [Line Items]
Loans held-for-investment	1,987	2,167
Loans and Leases Receivable, Net of Deferred Income	2,013	2,194
Residential first mortgage | Pass
Loans held-for-investment [Line Items]
Loans held-for-investment	1,874	1,765
Residential first mortgage | Watch
Loans held-for-investment [Line Items]
Loans held-for-investment	61	314
Residential first mortgage | Substandard
Loans held-for-investment [Line Items]
Loans held-for-investment	78	115
Second mortgage
Loans held-for-investment [Line Items]
Loans held-for-investment	96	96
Loans and Leases Receivable, Net of Deferred Income	146	149
Second mortgage | Pass
Loans held-for-investment [Line Items]
Loans held-for-investment	108	111
Second mortgage | Watch
Loans held-for-investment [Line Items]
Loans held-for-investment	36	36
Second mortgage | Substandard
Loans held-for-investment [Line Items]
Loans held-for-investment	2	2
HELOC trust commitments
Loans held-for-investment [Line Items]
Loans held-for-investment	203	125
Loans and Leases Receivable, Net of Deferred Income	316	256
HELOC trust commitments | Pass
Loans held-for-investment [Line Items]
Loans held-for-investment	292	232
HELOC trust commitments | Watch
Loans held-for-investment [Line Items]
Loans held-for-investment	20	21
HELOC trust commitments | Substandard
Loans held-for-investment [Line Items]
Loans held-for-investment	4	3
Other
Loans held-for-investment [Line Items]
Loans held-for-investment	30	31
Loans and Leases Receivable, Net of Deferred Income	30	31
Other | Pass
Loans held-for-investment [Line Items]
Loans held-for-investment	30	31
Other | Watch
Loans held-for-investment [Line Items]
Loans held-for-investment	0	0
Other | Substandard
Loans held-for-investment [Line Items]
Loans held-for-investment	0	0
Consumer loans
Loans held-for-investment [Line Items]
Loans and Leases Receivable, Net of Deferred Income	2,505	2,630
Consumer loans | Pass
Loans held-for-investment [Line Items]
Loans held-for-investment	2,304	2,139
Consumer loans | Watch
Loans held-for-investment [Line Items]
Loans held-for-investment	117	371
Consumer loans | Substandard
Loans held-for-investment [Line Items]
Loans held-for-investment	$84	$120

Variable_Interest_Entities_VIE2

Variable Interest Entities (VIEs) (Details) (USD $)	3 Months Ended
In Millions, unless otherwise specified	Mar. 31, 2015	Dec. 31, 2014
	loan
HELOC loans
Private-label Securitizations [Line Items]
Fair value of HELOC loans	$112	$132
Fair value of long-term debt	70	84
Decrease in fair value of HELOC loans	5.5
FSTAR 2007-1 Mortgage Securitization
Private-label Securitizations [Line Items]
Number of mortgage securitization trust loans	3,470
Aggregate principal balance	$135

Variable_Interest_Entities_VIE3

Variable Interest Entities (VIEs) (Variable Interest Entities) (Details) (USD $)	Mar. 31, 2015	Dec. 31, 2014
In Millions, unless otherwise specified
Assets
Loans held-for-investment	$4,378	$4,151
Liabilities
Long-term debt	317	331
HELOC Securitizations | Variable Interest Entity, Primary Beneficiary
Assets
Loans held-for-investment	112	132
Liabilities
Long-term debt	70	84
HELOC Securitizations | FSTAR 2005-1 HELOC Securitization | Variable Interest Entity, Primary Beneficiary
Assets
Loans held-for-investment	47	63
Liabilities
Long-term debt	31	42
HELOC Securitizations | FSTAR 2006-2 HELOC Securitization | Variable Interest Entity, Primary Beneficiary
Assets
Loans held-for-investment	65	69
Liabilities
Long-term debt	$39	$42

Mortgage_Servicing_Rights_Deta

Mortgage Servicing Rights (Details) (USD $)	3 Months Ended
In Millions, unless otherwise specified	Mar. 31, 2015	Mar. 31, 2014	Dec. 31, 2014
Servicing Asset at Fair Value [Roll Forward]
Balance at beginning of period			$258
Changes in Fair Value Due to Changes in Valuation Inputs or Assumptions [Abstract]
Fair value of MSRs at end of period	279		258
Residential first mortgage loans
Servicing Asset at Fair Value [Roll Forward]
Balance at beginning of period	257.8	284.7
Additions from loans sold with servicing retained	67.9	51
Reductions from sales	-21.6	-5.9
Changes in Fair Value Due to Changes in Valuation Inputs or Assumptions [Abstract]
Decrease in MSR due to pay-offs, pay-downs and run-off	-14.6	-4.9
Changes in valuation inputs or assumptions	-10.9	-4.7
Fair value of MSRs at end of period	$278.60	$320.20

Mortgage_Servicing_Rights_Inco

Mortgage Servicing Rights (Income and Fees from Associated with Mortgage Servicing Asset and Mortgage Loan Subserviced) (Details) (Residential first mortgage, USD $)	3 Months Ended
In Millions, unless otherwise specified	Mar. 31, 2015	Mar. 31, 2014
Servicing Assets at Fair Value [Line Items]
Total (loss) income on mortgage servicing asset, included in net return on mortgage servicing asset	($2.40)	$16.10
Net return on mortgage servicing asset
Servicing Assets at Fair Value [Line Items]
Servicing fees, ancillary income and late fees	16.6	17.2
Fair value adjustments	-25.5	-9.6
Gain on hedging activity	8.3	4.9
Net transaction costs	-1.8	3.6
Net Loan Administration Income
Servicing Assets at Fair Value [Line Items]
Servicing fees, ancillary income and late fees	7.6	7.4
Other servicing charges	-3.3	-0.4
Total income on mortgage loans subserviced, included in loan administration	$4.30	$7

Mortgage_Servicing_Rights_Resi

Mortgage Servicing Rights (Residential Mortgage Servicing) (Details) (USD $)	Mar. 31, 2015	Dec. 31, 2014
In Millions, unless otherwise specified	account	account
Transfers and Servicing [Abstract]
Serviced for others, amount	$27,046	$25,427
Subserviced for others, amount	44,708	46,724
Total residential loans serviced for others, amount	$71,754	$72,151
Serviced for others, number of accounts	126,393	117,881
Subserviced for others, number of accounts	231,223	238,498
Total residential loans serviced for others, number of accounts	357,616	356,379

Mortgage_Servicing_Rights_Sche

Mortgage Servicing Rights (Schedule of Sensitivity Analysis of Fair Value) (Details) (USD $)	3 Months Ended	12 Months Ended
In Millions, unless otherwise specified	Mar. 31, 2015	Dec. 31, 2014
Transfers and Servicing [Abstract]
Option adjusted spread, Actual (as a percent)	8.76%	8.88%
Option adjusted spread, Decline in fair value due to 10% adverse change	$272	$250
Option adjusted spread, Decline in fair value due to 20% adverse change	266	243
Constant prepayment rate, Actual (as a percent)	14.86%	14.98%
Constant prepayment rate, Decline in fair value due to 10% adverse change	269	253
Constant prepayment rate, Decline in fair value due to 20% adverse change	262	245
Weighted average cost to service per loan, Actual (as a percent)	74.55%	74.49%
Weighted average cost to service per loan, Decline in fair value due to 10% adverse change	275	258
Weighted average cost to service per loan, Decline in fair value due to 20% adverse change	$272	$255

Derivative_Financial_Instrumen2

Derivative Financial Instruments (Schedule of Unrealized Gains or Losses) (Details) (USD $)	3 Months Ended
In Millions, unless otherwise specified	Mar. 31, 2015	Mar. 31, 2014
Derivative [Line Items]
Net gain (loss) recognized in income on derivative instruments	$18.90	$0
U.S. Treasury and euro dollar futures | Net return on mortgage servicing asset
Derivative [Line Items]
Net gain (loss) recognized in income on derivative instruments	5.9	3.1
Swap futures | Net return on mortgage servicing asset
Derivative [Line Items]
Net gain (loss) recognized in income on derivative instruments	-0.1	0
Mortgage backed securities forwards | Net return on mortgage servicing asset
Derivative [Line Items]
Net gain (loss) recognized in income on derivative instruments	2.5	1.8
Rate lock commitments and forward agency and loan sales | Net gain on loan sales
Derivative [Line Items]
Net gain (loss) recognized in income on derivative instruments	10.5	-5.6
Interest rate swaps | Other noninterest income
Derivative [Line Items]
Net gain (loss) recognized in income on derivative instruments	$0.10	$0.70

Derivative_Financial_Instrumen3

Derivative Financial Instruments (Details) (USD $)	Mar. 31, 2015	Dec. 31, 2014
In Millions, unless otherwise specified
Derivative [Line Items]
Derivative asset, Fair Value	$11	$14
U.S. Treasury and euro dollar futures
Derivative [Line Items]
Derivative asset, Fair Value	3	6
Mortgage backed securities forwards
Derivative [Line Items]
Derivative asset, Fair Value	1	2
Rate lock commitments
Derivative [Line Items]
Derivative asset, Fair Value		31
Interest rate swaps
Derivative [Line Items]
Derivative asset, Fair Value	7	6
Derivative liability, Fair Value	8	6
Other assets
Derivative [Line Items]
Derivative asset, Notional Amount	6,532	5,844
Derivative asset, Fair Value	68	46
Other assets | U.S. Treasury and euro dollar futures
Derivative [Line Items]
Derivative asset, Notional Amount	2,028	2,530
Derivative asset, Fair Value	5	7
Other assets | Mortgage backed securities forwards
Derivative [Line Items]
Derivative asset, Notional Amount	150	161
Derivative asset, Fair Value	1	2
Other assets | Rate lock commitments
Derivative [Line Items]
Derivative asset, Notional Amount	3,722	2,604
Derivative asset, Fair Value	55
Other assets | Forward agency and loan sales
Derivative [Line Items]
Derivative asset, Notional Amount	276	194
Derivative asset, Fair Value	0	0
Other assets | Interest rate swaps
Derivative [Line Items]
Derivative asset, Notional Amount	356	355
Derivative asset, Fair Value	7	6
Other liabilities
Derivative [Line Items]
Derivative liability, Notional Amount	5,046	3,866
Derivative liability, Fair Value	37	20
Other liabilities | U.S. Treasury and euro dollar futures
Derivative [Line Items]
Derivative liability, Notional Amount	468	688
Derivative liability, Fair Value	2	1
Other liabilities | Mortgage backed securities forwards
Derivative [Line Items]
Derivative liability, Notional Amount	15
Derivative liability, Fair Value	0
Other liabilities | Swap futures
Derivative [Line Items]
Derivative liability, Notional Amount	77
Derivative liability, Fair Value	1
Other liabilities | Rate lock commitments
Derivative [Line Items]
Derivative liability, Notional Amount	80	22
Derivative liability, Fair Value	0	0
Other liabilities | Forward agency and loan sales
Derivative [Line Items]
Derivative liability, Notional Amount	4,050	2,789
Derivative liability, Fair Value	26	13
Other liabilities | Interest rate swaps
Derivative [Line Items]
Derivative liability, Notional Amount	356	367
Derivative liability, Fair Value	$8	$6

Derivative_Financial_Instrumen4

Derivative Financial Instruments (Master Netting Schedule) (Details) (USD $)	Mar. 31, 2015	Dec. 31, 2014
In Millions, unless otherwise specified
Derivative [Line Items]
Gross Amount, Assets	$48	$51
Gross Amounts Offset in the Statement of Financial Position, Assets	2	1
Financial Instruments, Assets	0	0
Cash Collateral, Assets	35	36
Net Amount, Assets	11	14
Other assets
Derivative [Line Items]
Net Amount Presented in the Statement of Financial Position	46	50
Net Amount, Assets	68	46
Other liabilities
Derivative [Line Items]
Net Amount, Liabilities	37	20
U.S. Treasury and euro dollar futures
Derivative [Line Items]
Gross Amount, Assets	12	17
Gross Amounts Offset in the Statement of Financial Position, Assets	2	1
Financial Instruments, Assets	0	0
Cash Collateral, Assets	7	10
Net Amount, Assets	3	6
U.S. Treasury and euro dollar futures | Other assets
Derivative [Line Items]
Net Amount Presented in the Statement of Financial Position	10	16
Net Amount, Assets	5	7
U.S. Treasury and euro dollar futures | Other liabilities
Derivative [Line Items]
Net Amount, Liabilities	2	1
Mortgage backed securities forwards
Derivative [Line Items]
Gross Amount, Assets	28	26
Gross Amounts Offset in the Statement of Financial Position, Assets	0	0
Financial Instruments, Assets	0	0
Cash Collateral, Assets	27	24
Net Amount, Assets	1	2
Mortgage backed securities forwards | Other assets
Derivative [Line Items]
Net Amount Presented in the Statement of Financial Position	28	26
Net Amount, Assets	1	2
Mortgage backed securities forwards | Other liabilities
Derivative [Line Items]
Net Amount, Liabilities	0
Interest rate swaps
Derivative [Line Items]
Gross Amount, Assets	8	8
Gross Amount, Liabilities	8	6
Gross Amounts Offset in the Statement of Financial Position, Assets	0	0
Gross Amounts Offset in the Statement of Financial Position, Liabilities	0	0
Financial Instruments, Assets	0	0
Financial Instruments, Liabilities	0	0
Cash Collateral, Assets	1	2
Cash Collateral, Liabilities	0	0
Net Amount, Assets	7	6
Net Amount, Liabilities	8	6
Interest rate swaps | Other assets
Derivative [Line Items]
Net Amount Presented in the Statement of Financial Position	8	8
Net Amount, Assets	7	6
Interest rate swaps | Other liabilities
Derivative [Line Items]
Net Amount Presented in the Statement of Financial Position	8	6
Net Amount, Liabilities	$8	$6

Derivative_Financial_Instrumen5

Derivative Financial Instruments (Counterparty Credit Risk) (Details) (USD $)	Mar. 31, 2015	Dec. 31, 2014
In Millions, unless otherwise specified
Derivative Instruments and Hedging Activities Disclosure [Abstract]
Investment securities and cash collateral posted with counterparties	$35	$36

Federal_Home_Loan_Bank_Advance2

Federal Home Loan Bank Advances (Details) (USD $)	Mar. 31, 2015	Dec. 31, 2014
In Millions, unless otherwise specified
Federal Home Loan Bank, Advances [Line Items]
Federal Home Loan Bank advances (includes both short-term and long-term)	$1,625	$514
Weighted average interest rate (as a percent)	0.97%	0.90%
Short-term fixed rate term advances
Federal Home Loan Bank, Advances [Line Items]
Federal Home Loan Bank advances (includes both short-term and long-term)	700	214
Weighted average interest rate (as a percent)	0.17%	0.26%
Long-term fixed rate term advances
Federal Home Loan Bank, Advances [Line Items]
Federal Home Loan Bank advances (includes both short-term and long-term)	$925	$300
Weighted average interest rate (as a percent)	1.58%	1.36%

Federal_Home_Loan_Bank_Advance3

Federal Home Loan Bank Advances (Disclosures) (Details) (USD $)	3 Months Ended
	Mar. 31, 2015	Mar. 31, 2014
Advances from Federal Home Loan Banks [Abstract]
FHLB line of credit, maximum amount available	$7,000,000,000
FHLB advances, line of credit	1,600,000,000
FHLB line of credit, available collateral amount	1,500,000,000
Maximum outstanding at any month end	1,625,000,000	1,125,000,000
Average outstanding balance	1,161,000,000	886,000,000
Average remaining borrowing capacity	$1,894,000,000	$1,802,000,000
Weighted-average interest rate	1.08%	0.24%

Federal_Home_Loan_Bank_Advance4

Federal Home Loan Bank Advances (Schedule of FHLB, Advances, Maturity Summary) (Details) (USD $)	Mar. 31, 2015	Dec. 31, 2014
In Millions, unless otherwise specified
Advances from Federal Home Loan Banks [Abstract]
2015	$700
2016	175
2017	0
2018	125
Thereafter	625
Total	$1,625	$514

Long_Term_Debt_Details

Long Term Debt (Details) (USD $)	3 Months Ended	12 Months Ended
In Millions, unless otherwise specified	Mar. 31, 2015	Dec. 31, 2014
Debt Instrument [Line Items]
Number of trust subsidiaries	9
Junior subordinated notes	247	247
Long-term debt	317	331
Trust Preferred Securities [Abstract]
Trust Preferred Securities, Accrued Interest	22
One Month LIBOR
Debt Instrument [Line Items]
Debt instrument, variable interest rate, term	30 days
Three Month LIBOR
Debt Instrument [Line Items]
Interest rate	0.27%	0.26%
Debt instrument, variable interest rate, term	3 months	3 months
One Month LIBOR
Debt Instrument [Line Items]
Interest rate	0.18%	0.17%
Debt instrument, variable interest rate, term	1 month	1 month
3ML plus 3.25% maturing 2032
Debt Instrument [Line Items]
Basis spread on variable rate debt	3.25%
Junior subordinated notes	26	26
Interest rate	3.52%	3.50%
3ML plus 3.25% maturing 2033 A
Debt Instrument [Line Items]
Basis spread on variable rate debt	3.25%
Junior subordinated notes	26	26
Interest rate	3.50%	3.48%
3ML plus 3.25% maturing 2033 B
Debt Instrument [Line Items]
Basis spread on variable rate debt	3.25%
Junior subordinated notes	26	26
Interest rate	3.52%	3.51%
3ML plus 2.00% maturing 2035 A
Debt Instrument [Line Items]
Basis spread on variable rate debt	2.00%
Junior subordinated notes	26	26
Interest rate	2.25%	2.23%
3ML plus 2.00% maturing 2035 B
Debt Instrument [Line Items]
Basis spread on variable rate debt	2.00%
Junior subordinated notes	26	26
Interest rate	2.25%	2.23%
3ML plus 1.75% maturing 2035
Debt Instrument [Line Items]
Basis spread on variable rate debt	1.75%
Junior subordinated notes	50	50
Interest rate	2.02%	1.99%
3ML plus 1.50% maturing 2035
Debt Instrument [Line Items]
Basis spread on variable rate debt	1.50%
Junior subordinated notes	26	26
Interest rate	1.75%	1.73%
3ML plus 1.45% maturing 2037
Debt Instrument [Line Items]
Basis spread on variable rate debt	1.45%
Junior subordinated notes	26	26
Interest rate	1.72%	1.69%
3ML plus 2.50% maturing 2037
Debt Instrument [Line Items]
Basis spread on variable rate debt	2.50%
Junior subordinated notes	15	15
Interest rate	2.77%	2.74%
3ML plus 0.46% maturing 2018
Debt Instrument [Line Items]
Basis spread on variable rate debt	0.46%
Interest rate	16.00%
Trust Preferred Securities [Abstract]
Maximum Percentage Before Allowance of Call Feature (less than)	10.00%
3ML plus 0.46% maturing 2018 | One Month LIBOR
Debt Instrument [Line Items]
Basis spread on variable rate debt	0.46%
Interest rate	16.00%
Debt instrument, variable interest rate, term	1 month
3ML plus 0.46% maturing 2018 | HELOC Securitizations
Debt Instrument [Line Items]
Long-term debt	31	42
Long-term debt, par value	31	43
3ML plus 0.16% maturing 2019
Debt Instrument [Line Items]
Basis spread on variable rate debt	0.16%
Trust Preferred Securities [Abstract]
Maximum Percentage Before Allowance of Call Feature (less than)	10.00%
3ML plus 0.16% maturing 2019 | HELOC Securitizations
Debt Instrument [Line Items]
Long-term debt	39	42
Long-term debt, par value	41	45
Junior Subordinated Debt
Trust Preferred Securities [Abstract]
Maximum period for interest payment deferment (in quarters)	20
Current Period for Interest Payment Deferment (in Quarters)	13

Representation_and_Warranty_Re2

Representation and Warranty Reserve (Details) (USD $)	3 Months Ended
In Millions, unless otherwise specified	Mar. 31, 2015	Mar. 31, 2014
Representation and Warranty Reserve [Roll Forward]
Balance, beginning of period	$53	$54
Charged to gain on sale for current loan sales	1.9	1.2
Charged to representation and warranty reserve - change in estimate	-1.5	-1.7
Total	0.4	-0.5
Charge-offs, net	-0.4	-5.5
Balance, end of period	$53	$48

Stockholders_Equity_Details

Stockholders' Equity (Details) (USD $)	3 Months Ended	0 Months Ended
In Millions, except Share data, unless otherwise specified	Mar. 31, 2015	Jan. 30, 2014	Dec. 31, 2014	Jan. 30, 2009
Class of Stock [Line Items]
Preferred Stock, Shares Sold	266,657		266,657
Warrant value	$5		$6
Series C Preferred Stock
Class of Stock [Line Items]
Preferred Stock, Shares Sold	266,657
Preferred stock, total exercise price of warrant	266.7
Preferred stock, dividend rate per annum (as a percent)	9.00%
U.S. Treasury | Common Stock
Class of Stock [Line Items]
Preferred Stock, Shares Sold				266,657
Number of shares auctioned by warrants				700,000
Exercise price of warrants (in usd per share)				$62
Preferred stock, total exercise price of warrant				$266.70
U.S. Treasury | Series C Preferred Stock
Class of Stock [Line Items]
Preferred stock, dividend rate per annum (as a percent)		9.00%

Stockholders_Equity_Preferred_

Stockholders' Equity (Preferred Stock) (Details) (USD $)	3 Months Ended
In Millions, except Share data, unless otherwise specified	Mar. 31, 2015	Dec. 31, 2014
Class of Stock [Line Items]
Preferred stock, par value (in usd per share)	$0.01	$0.01
Preferred stock, liquidation value per share (in usd per share)	$1,000	$1,000
Preferred stock, shares outstanding	266,657	266,657
Series C Preferred Stock
Class of Stock [Line Items]
Preferred stock, dividend rate per annum (as a percent)	9.00%
Preferred stock, shares outstanding	266,657
Preferred stock, value	$0
Preferred stock, additional paid in capital	266.7
Preferred stock, dividends payable	$63.50

Stockholders_Equity_Accumulate

Stockholders' Equity (Accumulated Other Comprehensive Income) (Details) (USD $)	3 Months Ended
	Mar. 31, 2015	Mar. 31, 2014	Dec. 31, 2014	Dec. 31, 2013
Accumulated other comprehensive income (loss)
Beginning balance			$1,373,000,000	$1,426,000,000
Ending balance	1,420,000,000	1,351,500,000	1,373,000,000	1,426,000,000
Accumulated other comprehensive income (loss)
Schedule of Accumulated Other Comprehensive Income (Loss) [Line Items]
Other Comprehensive Income (Loss), Unrealized Holding Gain (Loss) on Securities Arising During Period, Net of Tax	14,900,000	3,900,000
Accumulated other comprehensive income (loss)
Beginning balance	8,400,000	-4,800,000
Net realized (loss) gains reclassified into earnings, net of tax	0	-200,000
Ending balance	$23,300,000	($1,100,000)

Earnings_Loss_Per_Share_Detail

Earnings (Loss) Per Share (Details) (USD $)	3 Months Ended
In Millions, except Share data, unless otherwise specified	Mar. 31, 2015	Mar. 31, 2014
Earnings Per Share [Abstract]
Net income (loss)	$31.50	($78.40)
Less: preferred stock dividend/accretion	0	-0.5
Net income (loss) from continuing operations	31.5	-78.9
Deferred cumulative preferred stock dividends	-7.3	-5.7
Net income (loss) applicable to common stock	$24.20	($84.60)
Weighted average shares
Weighted average common shares outstanding	56,385,454	56,194,184
Effect of dilutive securities
Warrants (in shares)	232,474	0
Stock-based awards (in shares)	157,111	0
Weighted average diluted common shares	56,775,039	56,194,184
Earnings (loss) per common share
Net income (loss) applicable to common stock (in usd per share)	$0.43	($1.51)
Effect of dilutive securities
Warrants (in usd per share)	$0	$0
Stock-based awards (in usd per share)	$0	$0
Diluted (loss) earnings per share (in usd per share)	$0.43	($1.51)

Earnings_Loss_Per_Share_Antidi

Earnings (Loss) Per Share (Anti-dilutive) (Details) (USD $)	3 Months Ended
In Millions, except Share data, unless otherwise specified	Mar. 31, 2014	Mar. 31, 2015
Warrants
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Antidilutive securities excluded from computation of earnings (loss) per share (in shares)	1,334,045
Share-based awards
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Antidilutive securities excluded from computation of earnings (loss) per share (in shares)	295,179
Series C Preferred Stock
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Arrearage on dividend payments		$63.50

Income_Taxes_Details

Income Taxes (Details) (USD $)	3 Months Ended
In Millions, unless otherwise specified	Mar. 31, 2015	Mar. 31, 2014
Income Tax Disclosure [Abstract]
Income tax expense (benefit)	$18.20	($40)
Net tax provision (benefit) as a percentage of pretax income	36.60%	33.80%
Unrecognized tax benefits, recognition period (in months)	12 months

Regulatory_Matters_Details

Regulatory Matters (Details) (USD $)	Mar. 31, 2015	Dec. 31, 2014
In Millions, unless otherwise specified
Compliance with Regulatory Capital Requirements under Banking Regulations [Line Items]
Tangible capital, Actual, Amount	$1,257	$1,184
Tangible capital, Actual, Ratio	12.02%	12.59%
Tier 1 capital (to adjusted tangible assets), Actual, Amount	1,257	1,184
Tier 1 capital (to adjusted tangible assets), Actual, Ratio (as a percent)	12.02%	12.59%
Tier 1 capital (to adjusted tangible assets), For Capital Adequacy Purposes, Amount	418	376
Tier 1 capital (to adjusted tangible assets), For Required Adequacy Purposes, Ratio (as a percent)	4.00%	4.00%
Tier 1 capital (to adjusted tangible assets), Well Capitalized Under Prompt Corrective Action Provisions, Amount	523	470
Tier 1 capital (to adjusted tangible assets), Well Capitalized Under Prompt Corrective Action Provisions, Ratio (as a percent)	5.00%	5.00%
Common equity Tier 1 capital (to RWA), Actual, Amount	909
Common equity Tier 1 capital (to RWA), Actual, Ratio (as a percent)	15.38%
Common equity Tier 1 capital (to RWA), Required for Capital Adequacy, Amount	266
Common equity Tier 1 capital (to RWA), Required for Capital Adequacy, Ratio (as a percent)	4.50%
Common equity Tier 1 capital (to RWA), Required to Be Well Capitalized, Amount	384
Common equity Tier 1 capital (to RWA), Required to Be Well Capitalized, Ratio (as a percent)	6.50%
Tier 1 capital (to risk weighted assets), Actual, Amount	1,257	1,184
Tier 1 capital (to risk weighted assets), Actual, Ratio (as a percent)	21.26%	22.81%
Tier 1 capital (to risk weighted assets), For Capital Adequacy Purposes, Amount	355	208
Tier 1 capital (to risk weighted assets), For Capital Adequacy Purposes, Ratio (as a percent)	6.00%	4.00%
Tier 1 capital (to risk weighted assets), Well Capitalized Under Prompt Corrective Action Provisions, Amount	473	311
Tier 1 capital (to risk weighted assets), Well Capitalized Under Prompt Corrective Action Provisions, Ratio (as a percent)	8.00%	6.00%
Total capital (to risk weighted assets), Actual, Amount	1,336	1,252
Total capital (to risk weighted assets), Actual, Ratio (as a percent)	22.61%	24.12%
Total capital (to risk weighted assets), For Capital Adequacy Purposes, Amount	473	415
Total capital (to risk weighted assets), For Capital Adequacy Purposes, Ratio (as a percent)	8.00%	8.00%
Total capital (to risk weighted assets), Well Capitalized Under Prompt Corrective Action Provisions, Amount	591	519
Total capital (to risk weighted assets), Well Capitalized Under Prompt Corrective Action Provisions, Ratio (as a percent)	10.00%	10.00%
Bank
Compliance with Regulatory Capital Requirements under Banking Regulations [Line Items]
Tangible capital, Actual, Amount	1,278	1,167
Tangible capital, Actual, Ratio	12.21%	12.43%
Tier 1 capital (to adjusted tangible assets), Actual, Amount	1,278	1,167
Tier 1 capital (to adjusted tangible assets), Actual, Ratio (as a percent)	12.21%	12.43%
Tier 1 capital (to adjusted tangible assets), For Capital Adequacy Purposes, Amount	419	376
Tier 1 capital (to adjusted tangible assets), For Required Adequacy Purposes, Ratio (as a percent)	4.00%	4.00%
Tier 1 capital (to adjusted tangible assets), Well Capitalized Under Prompt Corrective Action Provisions, Amount	524	470
Tier 1 capital (to adjusted tangible assets), Well Capitalized Under Prompt Corrective Action Provisions, Ratio (as a percent)	5.00%	5.00%
Common equity Tier 1 capital (to RWA), Actual, Amount	1,278
Common equity Tier 1 capital (to RWA), Actual, Ratio (as a percent)	21.58%
Common equity Tier 1 capital (to RWA), Required for Capital Adequacy, Amount	267
Common equity Tier 1 capital (to RWA), Required for Capital Adequacy, Ratio (as a percent)	4.50%
Common equity Tier 1 capital (to RWA), Required to Be Well Capitalized, Amount	385
Common equity Tier 1 capital (to RWA), Required to Be Well Capitalized, Ratio (as a percent)	6.50%
Tier 1 capital (to risk weighted assets), Actual, Amount	1,278	1,167
Tier 1 capital (to risk weighted assets), Actual, Ratio (as a percent)	21.58%	22.54%
Tier 1 capital (to risk weighted assets), For Capital Adequacy Purposes, Amount	356	207
Tier 1 capital (to risk weighted assets), For Capital Adequacy Purposes, Ratio (as a percent)	6.00%	4.00%
Tier 1 capital (to risk weighted assets), Well Capitalized Under Prompt Corrective Action Provisions, Amount	474	311
Tier 1 capital (to risk weighted assets), Well Capitalized Under Prompt Corrective Action Provisions, Ratio (as a percent)	8.00%	6.00%
Total capital (to risk weighted assets), Actual, Amount	1,357	1,235
Total capital (to risk weighted assets), Actual, Ratio (as a percent)	22.91%	23.85%
Total capital (to risk weighted assets), For Capital Adequacy Purposes, Amount	474	414
Total capital (to risk weighted assets), For Capital Adequacy Purposes, Ratio (as a percent)	8.00%	8.00%
Total capital (to risk weighted assets), Well Capitalized Under Prompt Corrective Action Provisions, Amount	$593	$518
Total capital (to risk weighted assets), Well Capitalized Under Prompt Corrective Action Provisions, Ratio (as a percent)	10.00%	10.00%

Legal_Proceedings_Contingencie2

Legal Proceedings, Contingencies and Commitments (Details) (USD $)	1 Months Ended	3 Months Ended	12 Months Ended
In Millions, unless otherwise specified	Feb. 29, 2012	Mar. 31, 2015	Dec. 31, 2014
Loss Contingencies [Line Items]
Litigation settlement payment amount	$118	$118
Accrued reserve for contingent liabilities		85	86
Letter of Credit, reserve amount		1	1
Mortgage loans (interest-rate lock commitments)
Loss Contingencies [Line Items]
Commitments to extend credit		3,953	2,172
HELOC trust commitments
Loss Contingencies [Line Items]
Commitments to extend credit		101	88
Other consumer commitments
Loss Contingencies [Line Items]
Commitments to extend credit		9	7
Warehouse loan commitments
Loss Contingencies [Line Items]
Commitments to extend credit		663	827
Standby and commercial letters of credit
Loss Contingencies [Line Items]
Commitments to extend credit		10	10
Other commercial commitments
Loss Contingencies [Line Items]
Commitments to extend credit		491	445
DOJ Agreement
Loss Contingencies [Line Items]
Litigation Settlement Liability		$82	$82
Discount rate (as a percent)		7.90%	8.70%

Fair_Value_Measurements_Litiga

Fair Value Measurements (Litigation Settlement) (Details) (USD $)	1 Months Ended	3 Months Ended	12 Months Ended
In Millions, unless otherwise specified	Feb. 29, 2012	Mar. 31, 2015	Dec. 31, 2014
Loss Contingency, Settlement [Abstract]
Litigation settlement payment amount	$118	$118
Additional payments | DOJ Agreement
Loss Contingency, Settlement [Abstract]
Litigation settlement payment amount		$118	$118

Fair_Value_Measurements_Assets

Fair Value Measurements (Assets and Liabilities Measured at Fair Value on a Recurring Basis) (Details) (USD $)	3 Months Ended
	Mar. 31, 2015	Mar. 31, 2014	Dec. 31, 2014
Assets, Fair Value Disclosure [Abstract]
Investment securities	$2,295,000,000		$1,672,000,000
Loans held-for-sale	2,044,000,000		1,196,000,000
Loans held-for-investment	189,000,000		211,000,000
Mortgage servicing rights	279,000,000		258,000,000
Total assets at fair value	2,233,000,000		1,407,000,000
Liabilities, Fair Value Disclosure [Abstract]
Long-term debt	-70,000,000		-84,000,000
Agency
Assets, Fair Value Disclosure [Abstract]
Investment securities	406,000,000		929,000,000
Agency-collateralized mortgage obligations
Assets, Fair Value Disclosure [Abstract]
Investment securities	1,889,000,000		741,000,000
Municipal obligations
Assets, Fair Value Disclosure [Abstract]
Investment securities			2,000,000
Total Fair Value
Assets, Fair Value Disclosure [Abstract]
Investment securities	2,295,000,000		1,672,000,000
Loans held-for-sale	2,137,000,000		1,196,000,000
Loans held-for-investment	4,259,000,000		3,998,000,000
Mortgage servicing rights	279,000,000		258,000,000
Other investments	100,000,000		100,000,000
Liabilities, Fair Value Disclosure [Abstract]
Warrant liabilities	-5,000,000		-6,000,000
Long-term debt	-154,000,000		-172,000,000
Level 1 | Total Fair Value
Assets, Fair Value Disclosure [Abstract]
Investment securities	0		0
Loans held-for-sale	0		0
Loans held-for-investment	0		0
Mortgage servicing rights	0		0
Other investments			0
Liabilities, Fair Value Disclosure [Abstract]
Warrant liabilities	0		0
Long-term debt	0		0
Level 2 | Total Fair Value
Assets, Fair Value Disclosure [Abstract]
Investment securities	2,295,000,000		1,670,000,000
Loans held-for-sale	2,137,000,000		1,196,000,000
Loans held-for-investment	26,000,000		26,000,000
Mortgage servicing rights	0		0
Other investments	0		0
Liabilities, Fair Value Disclosure [Abstract]
Warrant liabilities	-5,000,000		-6,000,000
Long-term debt	-84,000,000		-88,000,000
Level 3 | Total Fair Value
Assets, Fair Value Disclosure [Abstract]
Investment securities	0		2,000,000
Loans held-for-sale	0		0
Loans held-for-investment	4,233,000,000		3,972,000,000
Mortgage servicing rights	279,000,000		258,000,000
Other investments	100,000,000		100,000,000
Liabilities, Fair Value Disclosure [Abstract]
Warrant liabilities	0		0
Long-term debt	-70,000,000		-84,000,000
Recurring
Liabilities, Fair Value Disclosure [Abstract]
Fair Value, Assets and Liabilities, Transfers Between Fair Value Levels	0	0
Recurring | Total Fair Value
Assets, Fair Value Disclosure [Abstract]
Mortgage servicing rights	279,000,000		258,000,000
Derivative assets	66,000,000		46,000,000
Other investments	100,000,000		100,000,000
Total assets at fair value	4,973,000,000		3,483,000,000
Liabilities, Fair Value Disclosure [Abstract]
Derivative liabilities	-35,000,000		-20,000,000
Warrant liabilities	-5,000,000		-6,000,000
Long-term debt	-70,000,000		-84,000,000
DOJ litigation settlement	-82,000,000		-82,000,000
Total liabilities at fair value	-192,000,000		-192,000,000
Recurring | Total Fair Value | Rate lock commitments
Assets, Fair Value Disclosure [Abstract]
Derivative assets	55,000,000		31,000,000
Recurring | Total Fair Value | U.S. Treasury and euro dollar futures
Assets, Fair Value Disclosure [Abstract]
Derivative assets	3,000,000		7,000,000
Liabilities, Fair Value Disclosure [Abstract]
Derivative liabilities			-1,000,000
Recurring | Total Fair Value | Mortgage backed securities forwards
Assets, Fair Value Disclosure [Abstract]
Derivative assets	1,000,000		2,000,000
Recurring | Total Fair Value | Interest rate swaps
Assets, Fair Value Disclosure [Abstract]
Derivative assets	7,000,000		6,000,000
Liabilities, Fair Value Disclosure [Abstract]
Derivative liabilities	-8,000,000		-6,000,000
Recurring | Total Fair Value | Forward agency and loan sales
Liabilities, Fair Value Disclosure [Abstract]
Derivative liabilities	-26,000,000		-13,000,000
Recurring | Total Fair Value | Swap futures
Liabilities, Fair Value Disclosure [Abstract]
Derivative liabilities	-1,000,000
Recurring | Total Fair Value | Residential first mortgage loans
Assets, Fair Value Disclosure [Abstract]
Loans held-for-sale	2,044,000,000		1,196,000,000
Loans held-for-investment	26,000,000		26,000,000
Recurring | Total Fair Value | Second mortgage
Assets, Fair Value Disclosure [Abstract]
Loans held-for-investment	50,000,000		53,000,000
Recurring | Total Fair Value | Agency
Assets, Fair Value Disclosure [Abstract]
Investment securities	1,280,000,000		389,000,000
Recurring | Total Fair Value | Agency-collateralized mortgage obligations
Assets, Fair Value Disclosure [Abstract]
Investment securities	1,015,000,000		1,281,000,000
Recurring | Total Fair Value | Municipal obligations
Assets, Fair Value Disclosure [Abstract]
Investment securities			2,000,000
Recurring | Total Fair Value | HELOC loans
Assets, Fair Value Disclosure [Abstract]
Loans held-for-investment	113,000,000		132,000,000
Recurring | Level 1
Assets, Fair Value Disclosure [Abstract]
Mortgage servicing rights	0		0
Derivative assets	4,000,000		9,000,000
Other investments	0		0
Total assets at fair value	4,000,000		9,000,000
Liabilities, Fair Value Disclosure [Abstract]
Derivative liabilities	-1,000,000		-1,000,000
Warrant liabilities	0		0
Long-term debt	0		0
DOJ litigation settlement	0		0
Total liabilities at fair value	-1,000,000		-1,000,000
Recurring | Level 1 | Rate lock commitments
Assets, Fair Value Disclosure [Abstract]
Derivative assets	0		0
Recurring | Level 1 | U.S. Treasury and euro dollar futures
Assets, Fair Value Disclosure [Abstract]
Derivative assets	3,000,000		7,000,000
Liabilities, Fair Value Disclosure [Abstract]
Derivative liabilities			-1,000,000
Recurring | Level 1 | Mortgage backed securities forwards
Assets, Fair Value Disclosure [Abstract]
Derivative assets	1,000,000		2,000,000
Recurring | Level 1 | Interest rate swaps
Assets, Fair Value Disclosure [Abstract]
Derivative assets	0		0
Liabilities, Fair Value Disclosure [Abstract]
Derivative liabilities	0		0
Recurring | Level 1 | Forward agency and loan sales
Liabilities, Fair Value Disclosure [Abstract]
Derivative liabilities	0		0
Recurring | Level 1 | Swap futures
Liabilities, Fair Value Disclosure [Abstract]
Derivative liabilities	-1,000,000
Recurring | Level 1 | Residential first mortgage loans
Assets, Fair Value Disclosure [Abstract]
Loans held-for-sale	0		0
Loans held-for-investment	0		0
Recurring | Level 1 | Second mortgage
Assets, Fair Value Disclosure [Abstract]
Loans held-for-investment	0		0
Recurring | Level 1 | Agency
Assets, Fair Value Disclosure [Abstract]
Investment securities	0		0
Recurring | Level 1 | Agency-collateralized mortgage obligations
Assets, Fair Value Disclosure [Abstract]
Investment securities	0		0
Recurring | Level 1 | Municipal obligations
Assets, Fair Value Disclosure [Abstract]
Investment securities			0
Recurring | Level 1 | HELOC loans
Assets, Fair Value Disclosure [Abstract]
Loans held-for-investment	0		0
Recurring | Level 2
Assets, Fair Value Disclosure [Abstract]
Mortgage servicing rights	0		0
Derivative assets	7,000,000		6,000,000
Other investments	0		0
Total assets at fair value	4,372,000,000		2,898,000,000
Liabilities, Fair Value Disclosure [Abstract]
Derivative liabilities	-34,000,000		-19,000,000
Warrant liabilities	-5,000,000		-6,000,000
Long-term debt	0		0
DOJ litigation settlement	0		0
Total liabilities at fair value	-39,000,000		-25,000,000
Recurring | Level 2 | Rate lock commitments
Assets, Fair Value Disclosure [Abstract]
Derivative assets	0		0
Recurring | Level 2 | U.S. Treasury and euro dollar futures
Assets, Fair Value Disclosure [Abstract]
Derivative assets	0		0
Liabilities, Fair Value Disclosure [Abstract]
Derivative liabilities			0
Recurring | Level 2 | Mortgage backed securities forwards
Assets, Fair Value Disclosure [Abstract]
Derivative assets	0		0
Recurring | Level 2 | Interest rate swaps
Assets, Fair Value Disclosure [Abstract]
Derivative assets	7,000,000		6,000,000
Liabilities, Fair Value Disclosure [Abstract]
Derivative liabilities	-8,000,000		-6,000,000
Recurring | Level 2 | Forward agency and loan sales
Liabilities, Fair Value Disclosure [Abstract]
Derivative liabilities	-26,000,000		-13,000,000
Recurring | Level 2 | Swap futures
Liabilities, Fair Value Disclosure [Abstract]
Derivative liabilities	0
Recurring | Level 2 | Residential first mortgage loans
Assets, Fair Value Disclosure [Abstract]
Loans held-for-sale	2,044,000,000		1,196,000,000
Loans held-for-investment	26,000,000		26,000,000
Recurring | Level 2 | Second mortgage
Assets, Fair Value Disclosure [Abstract]
Loans held-for-investment	0		0
Recurring | Level 2 | Agency
Assets, Fair Value Disclosure [Abstract]
Investment securities	1,280,000,000		389,000,000
Recurring | Level 2 | Agency-collateralized mortgage obligations
Assets, Fair Value Disclosure [Abstract]
Investment securities	1,015,000,000		1,281,000,000
Recurring | Level 2 | Municipal obligations
Assets, Fair Value Disclosure [Abstract]
Investment securities			0
Recurring | Level 2 | HELOC loans
Assets, Fair Value Disclosure [Abstract]
Loans held-for-investment	0		0
Recurring | Level 3
Assets, Fair Value Disclosure [Abstract]
Mortgage servicing rights	279,000,000		258,000,000
Derivative assets	55,000,000		31,000,000
Other investments	100,000,000		100,000,000
Total assets at fair value	597,000,000		576,000,000
Liabilities, Fair Value Disclosure [Abstract]
Derivative liabilities	0		0
Warrant liabilities	0		0
Long-term debt	-70,000,000		-84,000,000
DOJ litigation settlement	-82,000,000		-82,000,000
Total liabilities at fair value	-152,000,000		-166,000,000
Recurring | Level 3 | Rate lock commitments
Assets, Fair Value Disclosure [Abstract]
Derivative assets	55,000,000		31,000,000
Recurring | Level 3 | U.S. Treasury and euro dollar futures
Assets, Fair Value Disclosure [Abstract]
Derivative assets	0		0
Liabilities, Fair Value Disclosure [Abstract]
Derivative liabilities			0
Recurring | Level 3 | Mortgage backed securities forwards
Assets, Fair Value Disclosure [Abstract]
Derivative assets	0		0
Recurring | Level 3 | Interest rate swaps
Assets, Fair Value Disclosure [Abstract]
Derivative assets	0		0
Liabilities, Fair Value Disclosure [Abstract]
Derivative liabilities	0		0
Recurring | Level 3 | Forward agency and loan sales
Liabilities, Fair Value Disclosure [Abstract]
Derivative liabilities	0		0
Recurring | Level 3 | Swap futures
Liabilities, Fair Value Disclosure [Abstract]
Derivative liabilities	0
Recurring | Level 3 | Residential first mortgage loans
Assets, Fair Value Disclosure [Abstract]
Loans held-for-sale	0		0
Loans held-for-investment	0		0
Recurring | Level 3 | Second mortgage
Assets, Fair Value Disclosure [Abstract]
Loans held-for-investment	50,000,000		53,000,000
Recurring | Level 3 | Agency
Assets, Fair Value Disclosure [Abstract]
Investment securities	0		0
Recurring | Level 3 | Agency-collateralized mortgage obligations
Assets, Fair Value Disclosure [Abstract]
Investment securities	0		0
Recurring | Level 3 | Municipal obligations
Assets, Fair Value Disclosure [Abstract]
Investment securities			2,000,000
Recurring | Level 3 | HELOC loans
Assets, Fair Value Disclosure [Abstract]
Loans held-for-investment	$113,000,000		$132,000,000

Fair_Value_Measurements_Fair_V

Fair Value Measurements (Fair Value Measurements Using Significant Unobservable Inputs) (Details) (Level 3, Recurring, USD $)	3 Months Ended
In Millions, unless otherwise specified	Mar. 31, 2015	Mar. 31, 2014
Assets, Unobservable Input Reconciliation [Roll Forward]
Balance at Beginning of Period	$544.50	$514.70
Total unrealized gains / (losses) recorded in earnings	-29.6	21.1
Total realized gains/(losses) recorded in earnings	0.1	1.9
Total unrealized gains/(losses) recorded in OCI	0	0
Purchases	67.9	110.2
Sales	-21.6	-70.8
Settlements	-19.8	-23.4
Balance at End of Period	541.5	553.7
Changes in Unrealized Gains / (Losses) Held at End of Period	-9.4	2.6
Liabilities, Unobservable Input Reconciliation [Roll Forward]
Balance at Beginning of Period	-165.4	-198.8
Total unrealized gains/(losses) recorded in earnings	0.1	0
Total realized gains/(losses) recorded in earnings	-1.5	-2.3
Total unrealized gains/(losses) recorded in OCI	0	0
Purchases	0	0
Sales	0	0
Settlements	15.5	5.4
Balance at End of Period	-151.3	-195.7
Changes In Unrealized Gains / (Losses) Held at End of Period	0	1.3
Long-term debt
Liabilities, Unobservable Input Reconciliation [Roll Forward]
Balance at Beginning of Period	-83.8	-105.8
Total unrealized gains/(losses) recorded in earnings	0	0
Total realized gains/(losses) recorded in earnings	-1.5	-1.3
Total unrealized gains/(losses) recorded in OCI	0	0
Purchases	0	0
Sales	0	0
Settlements	15.5	5.4
Balance at End of Period	-69.8	-101.7
Changes In Unrealized Gains / (Losses) Held at End of Period	0	1.3
DOJ litigation settlement
Liabilities, Unobservable Input Reconciliation [Roll Forward]
Balance at Beginning of Period	-81.6	-93
Total unrealized gains/(losses) recorded in earnings	0.1	0
Total realized gains/(losses) recorded in earnings	0	-1
Total unrealized gains/(losses) recorded in OCI	0	0
Purchases	0	0
Sales	0	0
Settlements	0	0
Balance at End of Period	-81.5	-94
Changes In Unrealized Gains / (Losses) Held at End of Period	0	0
Rate lock commitments
Liabilities, Unobservable Input Reconciliation [Roll Forward]
Balance at Beginning of Period	30.7
Total unrealized gains/(losses) recorded in earnings	37.3
Total realized gains/(losses) recorded in earnings	0
Total unrealized gains/(losses) recorded in OCI	0
Purchases	97.9
Sales	-97
Settlements	-14.4
Balance at End of Period	54.5
Changes In Unrealized Gains / (Losses) Held at End of Period	17.2
Derivative Financial Instruments, Liabilities
Liabilities, Unobservable Input Reconciliation [Roll Forward]
Balance at Beginning of Period	30.7
Total unrealized gains/(losses) recorded in earnings	37.3
Total realized gains/(losses) recorded in earnings	0
Total unrealized gains/(losses) recorded in OCI	0
Purchases	97.9
Sales	-97
Settlements	-14.4
Balance at End of Period	54.5
Changes In Unrealized Gains / (Losses) Held at End of Period	17.2
Other investments
Assets, Unobservable Input Reconciliation [Roll Forward]
Balance at Beginning of Period	100
Total unrealized gains / (losses) recorded in earnings	0
Total realized gains/(losses) recorded in earnings	0
Total unrealized gains/(losses) recorded in OCI	0
Purchases	0
Sales	0
Settlements	0
Balance at End of Period	100
Changes in Unrealized Gains / (Losses) Held at End of Period	0
Municipal obligation
Assets, Unobservable Input Reconciliation [Roll Forward]
Balance at Beginning of Period	2
Total unrealized gains / (losses) recorded in earnings	0
Total realized gains/(losses) recorded in earnings	0
Total unrealized gains/(losses) recorded in OCI	0
Purchases	0
Sales	0
Settlements	-2
Balance at End of Period	0
Changes in Unrealized Gains / (Losses) Held at End of Period	0
Second mortgage loans
Assets, Unobservable Input Reconciliation [Roll Forward]
Balance at Beginning of Period	53.1	64.7
Total unrealized gains / (losses) recorded in earnings	0	-0.4
Total realized gains/(losses) recorded in earnings	0.4	0.4
Total unrealized gains/(losses) recorded in OCI	0	0
Purchases	0	0
Sales	0	0
Settlements	-3.1	-3.2
Balance at End of Period	50.4	61.5
Changes in Unrealized Gains / (Losses) Held at End of Period	-0.1	0
HELOC trust commitments
Assets, Unobservable Input Reconciliation [Roll Forward]
Balance at Beginning of Period	131.6	155
Total unrealized gains / (losses) recorded in earnings	-4.1	-1.9
Total realized gains/(losses) recorded in earnings	-0.3	1.5
Total unrealized gains/(losses) recorded in OCI	0	0
Purchases	0	0.1
Sales	0	0
Settlements	-14.7	-4
Balance at End of Period	112.5	150.7
Changes in Unrealized Gains / (Losses) Held at End of Period	-1.6	7.3
Mortgage servicing rights
Assets, Unobservable Input Reconciliation [Roll Forward]
Balance at Beginning of Period	257.8	284.7
Total unrealized gains / (losses) recorded in earnings	-25.5	-9.6
Total realized gains/(losses) recorded in earnings	0	0
Total unrealized gains/(losses) recorded in OCI	0	0
Purchases	67.9	51
Sales	-21.6	-5.9
Settlements	0	0
Balance at End of Period	278.6	320.2
Changes in Unrealized Gains / (Losses) Held at End of Period	-7.7	-4.1
Rate lock commitments
Assets, Unobservable Input Reconciliation [Roll Forward]
Balance at Beginning of Period		10.3
Total unrealized gains / (losses) recorded in earnings		33
Total realized gains/(losses) recorded in earnings		0
Total unrealized gains/(losses) recorded in OCI		0
Purchases		59.1
Sales		-64.9
Settlements		-16.2
Balance at End of Period		21.3
Changes in Unrealized Gains / (Losses) Held at End of Period		($0.60)

Fair_Value_Measurements_Level_

Fair Value Measurements (Level 3 Quantitative Information) (Details) (Level 3, USD $)	3 Months Ended	12 Months Ended
In Millions, unless otherwise specified	Mar. 31, 2015	Dec. 31, 2014	Mar. 31, 2014	Dec. 31, 2013
Mortgage servicing rights | Weighted Average
Fair Value Inputs [Abstract]
Discount rate (as a percent)	10.50%	10.90%
Prepay rate (as a percent)	14.90%	15.00%
Recurring
Fair Value Inputs, Assets and Liabilities, Quantitative Information [Line Items]
Fair value, Assets	541.5	544.5	$553.70	$514.70
Fair value, Liabilities	-151.3	-165.4	-195.7	-198.8
Recurring | DOJ litigation settlement
Fair Value Inputs, Assets and Liabilities, Quantitative Information [Line Items]
Fair value, Liabilities	-81.5	-81.6	-94	-93
Recurring | Second mortgage
Fair Value Inputs, Assets and Liabilities, Quantitative Information [Line Items]
Fair value, Assets	50.4	53.1	61.5	64.7
Recurring | Mortgage servicing rights
Fair Value Inputs, Assets and Liabilities, Quantitative Information [Line Items]
Fair value, Assets	278.6	257.8	320.2	284.7
Recurring | Rate lock commitments
Fair Value Inputs, Assets and Liabilities, Quantitative Information [Line Items]
Fair value, Assets			21.3	10.3
Discounted Cash Flow Method | Recurring | Long-term debt
Fair Value Inputs, Assets and Liabilities, Quantitative Information [Line Items]
Fair value, Liabilities	-70	-84
Discounted Cash Flow Method | Recurring | Long-term debt | Lower range
Fair Value Inputs [Abstract]
Discount rate (as a percent)	6.50%	6.40%
Prepay rate (as a percent)	26.20%	16.00%
Weighted average life (in years)	3 months 18 days	6 months
Discounted Cash Flow Method | Recurring | Long-term debt | Upper range
Fair Value Inputs [Abstract]
Discount rate (as a percent)	9.70%	9.60%
Prepay rate (as a percent)	39.30%	24.00%
Weighted average life (in years)	6 months	8 months 12 days
Discounted Cash Flow Method | Recurring | Long-term debt | Weighted Average
Fair Value Inputs [Abstract]
Discount rate (as a percent)	8.10%	8.00%
Prepay rate (as a percent)	32.80%	20.00%
Weighted average life (in years)	4 months 24 days	7 months 12 days
Discounted Cash Flow Method | Recurring | DOJ litigation settlement
Fair Value Inputs, Assets and Liabilities, Quantitative Information [Line Items]
Fair value, Liabilities	-82	-82
Discounted Cash Flow Method | Recurring | DOJ litigation settlement | Lower range
Fair Value Inputs [Abstract]
Asset growth rate (as a percent)	4.40%	4.40%
MSR growth rate (as a percent)	0.90%	0.90%
Return on assets (ROA) improvement rate (as a percent)	0.02%	0.02%
Peer group return on assets (as a percent)	0.50%	0.50%
Discounted Cash Flow Method | Recurring | DOJ litigation settlement | Upper range
Fair Value Inputs [Abstract]
Asset growth rate (as a percent)	6.60%	6.60%
MSR growth rate (as a percent)	1.40%	1.40%
Return on assets (ROA) improvement rate (as a percent)	0.04%	0.04%
Peer group return on assets (as a percent)	0.80%	0.80%
Discounted Cash Flow Method | Recurring | DOJ litigation settlement | Weighted Average
Fair Value Inputs [Abstract]
Asset growth rate (as a percent)	5.50%	5.50%
MSR growth rate (as a percent)	1.20%	1.20%
Return on assets (ROA) improvement rate (as a percent)	0.03%	0.03%
Peer group return on assets (as a percent)	0.70%	0.70%
Discounted Cash Flow Method | Recurring | Second mortgage
Fair Value Inputs, Assets and Liabilities, Quantitative Information [Line Items]
Fair value, Assets	50	53
Discounted Cash Flow Method | Recurring | Second mortgage | Lower range
Fair Value Inputs [Abstract]
Discount rate (as a percent)	7.20%	7.20%
Prepay rate (as a percent)	9.30%	11.30%
CDR rate (as a percent)	2.40%	2.40%
Discounted Cash Flow Method | Recurring | Second mortgage | Upper range
Fair Value Inputs [Abstract]
Discount rate (as a percent)	10.80%	10.80%
Prepay rate (as a percent)	13.90%	17.00%
CDR rate (as a percent)	3.60%	3.60%
Discounted Cash Flow Method | Recurring | Second mortgage | Weighted Average
Fair Value Inputs [Abstract]
Discount rate (as a percent)	9.00%	9.00%
Prepay rate (as a percent)	11.60%	14.20%
CDR rate (as a percent)	3.00%	3.00%
Discounted Cash Flow Method | Recurring | HELOC loans
Fair Value Inputs, Assets and Liabilities, Quantitative Information [Line Items]
Fair value, Assets	112	132
Discounted Cash Flow Method | Recurring | HELOC loans | Lower range
Fair Value Inputs [Abstract]
Discount rate (as a percent)	8.20%	8.00%
Prepay rate (as a percent)	13.10%	7.20%
CDR rate (as a percent)	16.70%	6.60%
Loss severity (as a percent)	32.10%	60.20%
Discounted Cash Flow Method | Recurring | HELOC loans | Upper range
Fair Value Inputs [Abstract]
Discount rate (as a percent)	12.30%	12.00%
Prepay rate (as a percent)	19.70%	10.80%
CDR rate (as a percent)	25.00%	9.90%
Loss severity (as a percent)	48.20%	90.20%
Discounted Cash Flow Method | Recurring | HELOC loans | Weighted Average
Fair Value Inputs [Abstract]
Discount rate (as a percent)	10.20%	10.00%
Prepay rate (as a percent)	16.40%	9.00%
CDR rate (as a percent)	20.80%	8.30%
Loss severity (as a percent)	40.20%	75.20%
Discounted Cash Flow Method | Recurring | Mortgage servicing rights
Fair Value Inputs, Assets and Liabilities, Quantitative Information [Line Items]
Fair value, Assets	279	258
Discounted Cash Flow Method | Recurring | Mortgage servicing rights | Lower range
Fair Value Inputs [Abstract]
Discount rate (as a percent)	7.00%	7.10%
Prepay rate (as a percent)	12.20%	12.20%
Weighted average cost to service per loan	67	67
Discounted Cash Flow Method | Recurring | Mortgage servicing rights | Upper range
Fair Value Inputs [Abstract]
Discount rate (as a percent)	10.50%	10.70%
Prepay rate (as a percent)	17.40%	17.10%
Weighted average cost to service per loan	88	88
Discounted Cash Flow Method | Recurring | Mortgage servicing rights | Weighted Average
Fair Value Inputs [Abstract]
Discount rate (as a percent)	8.80%	8.90%
Prepay rate (as a percent)	14.90%	15.00%
Weighted average cost to service per loan	78	78
Mark-to-market | Recurring | Rate lock commitments
Fair Value Inputs, Assets and Liabilities, Quantitative Information [Line Items]
Fair value, Assets	55	31
Mark-to-market | Recurring | Rate lock commitments | Lower range
Fair Value Inputs [Abstract]
Origination pull-through rate (as a percent)	65.30%	66.20%
Mark-to-market | Recurring | Rate lock commitments | Upper range
Fair Value Inputs [Abstract]
Origination pull-through rate (as a percent)	98.00%	99.30%
Mark-to-market | Recurring | Rate lock commitments | Weighted Average
Fair Value Inputs [Abstract]
Origination pull-through rate (as a percent)	81.70%	82.70%

Fair_Value_Measurements_Fair_V1

Fair Value Measurements (Fair Value Inputs, Assets, Quantitative Disclosures) (Details) (Weighted Average, Level 3)	3 Months Ended		12 Months Ended
	Mar. 31, 2015	Mar. 31, 2014	Dec. 31, 2014
Residential Mortgage Servicing Rights Capitalized
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Weighted-average life (in years)	7 years 3 months 12 days	7 years 9 months 12 days
Weighted-average constant prepayment rate (as a percent)	13.60%	12.20%
Weighted-average discount rate (as a percent)	10.80%	11.80%
Mortgage servicing rights
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Weighted-average life (in years)	6 years 8 months 18 days		6 years 7 months 18 days
Weighted-average constant prepayment rate (as a percent)	14.90%		15.00%
Weighted-average discount rate (as a percent)	10.50%		10.90%

Fair_Value_Measurements_Assets1

Fair Value Measurements (Assets Measured at Fair Value on a Non-recurring Basis) (Details) (USD $)	3 Months Ended
In Millions, unless otherwise specified	Mar. 31, 2015	Mar. 31, 2014	Dec. 31, 2014
Assets and Liabilities Measured at Fair Value on Non-recurring Basis [Line Items]
Total assets at fair value	$2,233		$1,407
Net gain (loss) on loan sales	91.3	45.3
Nonrecurring
Assets and Liabilities Measured at Fair Value on Non-recurring Basis [Line Items]
Fair value losses on repossessed assets	0.5	0.5
Net gain (loss) on loan sales	-0.2	0.8
Nonrecurring | Provision for loan losses
Assets and Liabilities Measured at Fair Value on Non-recurring Basis [Line Items]
Fair value losses on loans	3.5	9.9
Nonrecurring | Level 3
Assets and Liabilities Measured at Fair Value on Non-recurring Basis [Line Items]
Repossessed assets	16		19
Total assets at fair value	67		93
Residential first mortgage loans | Nonrecurring | Level 3
Assets and Liabilities Measured at Fair Value on Non-recurring Basis [Line Items]
Impaired loans held-for-investment	$51		$74

Fair_Value_Measurements_Assets2

Fair Value Measurements (Assets Measured on a Nonrecurring Basis, Level 3 Quantitative Information) (Details) (Nonrecurring, Level 3, USD $)	3 Months Ended	12 Months Ended
In Millions, unless otherwise specified	Mar. 31, 2015	Dec. 31, 2014
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Repossessed assets	16	19
Residential first mortgage loans
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Impaired loans held-for-investment	51	74
Fair value of underlying collateral | Residential first mortgage loans | Lower range
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Loss severity (as a percent)	35.00%	35.00%
Fair value of underlying collateral | Residential first mortgage loans | Upper range
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Loss severity (as a percent)	45.00%	47.00%
Fair value of underlying collateral | Residential first mortgage loans | Weighted Average
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Loss severity (as a percent)	38.20%	36.90%
Fair value of underlying collateral | Repossessed assets | Lower range
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Loss severity (as a percent)	2.60%	7.00%
Fair value of underlying collateral | Repossessed assets | Upper range
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Loss severity (as a percent)	69.20%	100.00%
Fair value of underlying collateral | Repossessed assets | Weighted Average
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Loss severity (as a percent)	45.80%	45.40%

Fair_Value_Measurements_Fair_V2

Fair Value Measurements (Fair Value of Financial Instruments) (Details) (USD $)	Mar. 31, 2015	Dec. 31, 2014
In Millions, unless otherwise specified
Carrying and Fair Values of Financial Instruments [Abstract]
Investment securities available-for-sale	$2,295	$1,672
Loans held-for-sale	2,044	1,196
Loans held-for-investment	189	211
Mortgage servicing rights	279	258
Long-term debt	-70	-84
Carrying Value
Carrying and Fair Values of Financial Instruments [Abstract]
Cash and cash equivalents	241	136
Other investments	100	100
Investment securities available-for-sale	2,295	1,672
Loans held-for-sale	2,097	1,244
Loans with government guarantees	704	1,128
Loans held-for-investment	4,378	4,151
Repossessed assets	17	19
Federal Home Loan Bank stock	155	155
Mortgage servicing rights	279	258
Federal Home Loan Bank advances	-1,625	-514
Long-term debt	-317	-331
Warrant liabilities	-5	-6
Litigation settlement	-82	-82
Carrying Value | Demand deposits and savings accounts
Carrying and Fair Values of Financial Instruments [Abstract]
Deposits	-4,819	-4,565
Carrying Value | Certificates of deposit
Carrying and Fair Values of Financial Instruments [Abstract]
Deposits	-775	-813
Carrying Value | Government deposits
Carrying and Fair Values of Financial Instruments [Abstract]
Deposits	-943	-918
Carrying Value | Company controlled deposits
Carrying and Fair Values of Financial Instruments [Abstract]
Deposits	-1,012	-773
Carrying Value | U.S. Treasury and euro dollar futures
Carrying and Fair Values of Financial Instruments [Abstract]
Derivative assets	3	7
Carrying Value | Forward agency and loan sales
Carrying and Fair Values of Financial Instruments [Abstract]
Derivative assets		0
Derivative liabilities	-26	-13
Carrying Value | Rate lock commitments
Carrying and Fair Values of Financial Instruments [Abstract]
Derivative assets	55	31
Carrying Value | Mortgage backed securities forwards
Carrying and Fair Values of Financial Instruments [Abstract]
Derivative assets	1
Carrying Value | Interest rate swaps
Carrying and Fair Values of Financial Instruments [Abstract]
Derivative assets	7	6
Derivative liabilities	-8	-6
Carrying Value | Agency forwards
Carrying and Fair Values of Financial Instruments [Abstract]
Derivative assets		2
Carrying Value | U.S. Treasury and euro dollar futures
Carrying and Fair Values of Financial Instruments [Abstract]
Derivative liabilities		-1
Carrying Value | Swap futures
Carrying and Fair Values of Financial Instruments [Abstract]
Derivative liabilities	-1
Estimated Fair Value
Carrying and Fair Values of Financial Instruments [Abstract]
Cash and cash equivalents	241	136
Other investments	100	100
Investment securities available-for-sale	2,295	1,672
Loans held-for-sale	2,137	1,196
Loans with government guarantees	683	1,094
Loans held-for-investment	4,259	3,998
Repossessed assets	17	19
Federal Home Loan Bank stock	155	155
Mortgage servicing rights	279	258
Federal Home Loan Bank advances	-1,625	-514
Long-term debt	-154	-172
Warrant liabilities	-5	-6
Litigation settlement	-82	-82
Estimated Fair Value | Demand deposits and savings accounts
Carrying and Fair Values of Financial Instruments [Abstract]
Deposits	-4,614	-4,291
Estimated Fair Value | Certificates of deposit
Carrying and Fair Values of Financial Instruments [Abstract]
Deposits	-778	-816
Estimated Fair Value | Government deposits
Carrying and Fair Values of Financial Instruments [Abstract]
Deposits	-913	-884
Estimated Fair Value | Company controlled deposits
Carrying and Fair Values of Financial Instruments [Abstract]
Deposits	-1,008	-770
Estimated Fair Value | U.S. Treasury and euro dollar futures
Carrying and Fair Values of Financial Instruments [Abstract]
Derivative assets	3	7
Estimated Fair Value | Forward agency and loan sales
Carrying and Fair Values of Financial Instruments [Abstract]
Derivative assets		0
Derivative liabilities	-26	-13
Estimated Fair Value | Rate lock commitments
Carrying and Fair Values of Financial Instruments [Abstract]
Derivative assets	55	31
Estimated Fair Value | Mortgage backed securities forwards
Carrying and Fair Values of Financial Instruments [Abstract]
Derivative assets	1
Estimated Fair Value | Interest rate swaps
Carrying and Fair Values of Financial Instruments [Abstract]
Derivative assets	7	6
Derivative liabilities	-8	-6
Estimated Fair Value | Agency forwards
Carrying and Fair Values of Financial Instruments [Abstract]
Derivative assets		2
Estimated Fair Value | U.S. Treasury and euro dollar futures
Carrying and Fair Values of Financial Instruments [Abstract]
Derivative liabilities		-1
Estimated Fair Value | Swap futures
Carrying and Fair Values of Financial Instruments [Abstract]
Derivative liabilities	-1
Estimated Fair Value | Level 1
Carrying and Fair Values of Financial Instruments [Abstract]
Cash and cash equivalents	241	136
Other investments		0
Investment securities available-for-sale	0	0
Loans held-for-sale	0	0
Loans with government guarantees	0	0
Loans held-for-investment	0	0
Repossessed assets	0	0
Federal Home Loan Bank stock	155	155
Mortgage servicing rights	0	0
Federal Home Loan Bank advances	-1,625	-514
Long-term debt	0	0
Warrant liabilities	0	0
Litigation settlement	0	0
Estimated Fair Value | Level 1 | Demand deposits and savings accounts
Carrying and Fair Values of Financial Instruments [Abstract]
Deposits	0	0
Estimated Fair Value | Level 1 | Certificates of deposit
Carrying and Fair Values of Financial Instruments [Abstract]
Deposits	0	0
Estimated Fair Value | Level 1 | Government deposits
Carrying and Fair Values of Financial Instruments [Abstract]
Deposits	0	0
Estimated Fair Value | Level 1 | Company controlled deposits
Carrying and Fair Values of Financial Instruments [Abstract]
Deposits	0	0
Estimated Fair Value | Level 1 | U.S. Treasury and euro dollar futures
Carrying and Fair Values of Financial Instruments [Abstract]
Derivative assets	3	7
Estimated Fair Value | Level 1 | Forward agency and loan sales
Carrying and Fair Values of Financial Instruments [Abstract]
Derivative assets		0
Derivative liabilities	0	0
Estimated Fair Value | Level 1 | Rate lock commitments
Carrying and Fair Values of Financial Instruments [Abstract]
Derivative assets	0	0
Estimated Fair Value | Level 1 | Mortgage backed securities forwards
Carrying and Fair Values of Financial Instruments [Abstract]
Derivative assets	1
Estimated Fair Value | Level 1 | Interest rate swaps
Carrying and Fair Values of Financial Instruments [Abstract]
Derivative assets	0	0
Derivative liabilities	0	0
Estimated Fair Value | Level 1 | Agency forwards
Carrying and Fair Values of Financial Instruments [Abstract]
Derivative assets		2
Estimated Fair Value | Level 1 | U.S. Treasury and euro dollar futures
Carrying and Fair Values of Financial Instruments [Abstract]
Derivative liabilities		-1
Estimated Fair Value | Level 1 | Swap futures
Carrying and Fair Values of Financial Instruments [Abstract]
Derivative liabilities	-1
Estimated Fair Value | Level 2
Carrying and Fair Values of Financial Instruments [Abstract]
Cash and cash equivalents	0	0
Other investments	0	0
Investment securities available-for-sale	2,295	1,670
Loans held-for-sale	2,137	1,196
Loans with government guarantees	683	1,094
Loans held-for-investment	26	26
Repossessed assets	0	0
Federal Home Loan Bank stock	0	0
Mortgage servicing rights	0	0
Federal Home Loan Bank advances	0	0
Long-term debt	-84	-88
Warrant liabilities	-5	-6
Litigation settlement	0	0
Estimated Fair Value | Level 2 | Demand deposits and savings accounts
Carrying and Fair Values of Financial Instruments [Abstract]
Deposits	-4,614	-4,291
Estimated Fair Value | Level 2 | Certificates of deposit
Carrying and Fair Values of Financial Instruments [Abstract]
Deposits	-778	-816
Estimated Fair Value | Level 2 | Government deposits
Carrying and Fair Values of Financial Instruments [Abstract]
Deposits	-913	-884
Estimated Fair Value | Level 2 | Company controlled deposits
Carrying and Fair Values of Financial Instruments [Abstract]
Deposits	-1,008	-770
Estimated Fair Value | Level 2 | U.S. Treasury and euro dollar futures
Carrying and Fair Values of Financial Instruments [Abstract]
Derivative assets	0	0
Estimated Fair Value | Level 2 | Forward agency and loan sales
Carrying and Fair Values of Financial Instruments [Abstract]
Derivative assets		0
Derivative liabilities	-26	-13
Estimated Fair Value | Level 2 | Rate lock commitments
Carrying and Fair Values of Financial Instruments [Abstract]
Derivative assets	0	0
Estimated Fair Value | Level 2 | Mortgage backed securities forwards
Carrying and Fair Values of Financial Instruments [Abstract]
Derivative assets	0
Estimated Fair Value | Level 2 | Interest rate swaps
Carrying and Fair Values of Financial Instruments [Abstract]
Derivative assets	7	6
Derivative liabilities	-8	-6
Estimated Fair Value | Level 2 | Agency forwards
Carrying and Fair Values of Financial Instruments [Abstract]
Derivative assets		0
Estimated Fair Value | Level 2 | U.S. Treasury and euro dollar futures
Carrying and Fair Values of Financial Instruments [Abstract]
Derivative liabilities		0
Estimated Fair Value | Level 2 | Swap futures
Carrying and Fair Values of Financial Instruments [Abstract]
Derivative liabilities	0
Estimated Fair Value | Level 3
Carrying and Fair Values of Financial Instruments [Abstract]
Cash and cash equivalents	0	0
Other investments	100	100
Investment securities available-for-sale	0	2
Loans held-for-sale	0	0
Loans with government guarantees	0	0
Loans held-for-investment	4,233	3,972
Repossessed assets	17	19
Federal Home Loan Bank stock	0	0
Mortgage servicing rights	279	258
Federal Home Loan Bank advances	0	0
Long-term debt	-70	-84
Warrant liabilities	0	0
Litigation settlement	-82	-82
Estimated Fair Value | Level 3 | Demand deposits and savings accounts
Carrying and Fair Values of Financial Instruments [Abstract]
Deposits	0	0
Estimated Fair Value | Level 3 | Certificates of deposit
Carrying and Fair Values of Financial Instruments [Abstract]
Deposits	0	0
Estimated Fair Value | Level 3 | Government deposits
Carrying and Fair Values of Financial Instruments [Abstract]
Deposits	0	0
Estimated Fair Value | Level 3 | Company controlled deposits
Carrying and Fair Values of Financial Instruments [Abstract]
Deposits	0	0
Estimated Fair Value | Level 3 | U.S. Treasury and euro dollar futures
Carrying and Fair Values of Financial Instruments [Abstract]
Derivative assets	0	0
Estimated Fair Value | Level 3 | Forward agency and loan sales
Carrying and Fair Values of Financial Instruments [Abstract]
Derivative assets		0
Derivative liabilities	0	0
Estimated Fair Value | Level 3 | Rate lock commitments
Carrying and Fair Values of Financial Instruments [Abstract]
Derivative assets	55	31
Estimated Fair Value | Level 3 | Mortgage backed securities forwards
Carrying and Fair Values of Financial Instruments [Abstract]
Derivative assets	0
Estimated Fair Value | Level 3 | Interest rate swaps
Carrying and Fair Values of Financial Instruments [Abstract]
Derivative assets	0	0
Derivative liabilities	0	0
Estimated Fair Value | Level 3 | Agency forwards
Carrying and Fair Values of Financial Instruments [Abstract]
Derivative assets		0
Estimated Fair Value | Level 3 | U.S. Treasury and euro dollar futures
Carrying and Fair Values of Financial Instruments [Abstract]
Derivative liabilities		0
Estimated Fair Value | Level 3 | Swap futures
Carrying and Fair Values of Financial Instruments [Abstract]
Derivative liabilities	$0

Fair_Value_Measurements_Fair_V3

Fair Value Measurements (Fair Value Option Disclosures) (Details) (USD $)	1 Months Ended	3 Months Ended		12 Months Ended
In Millions, unless otherwise specified	Feb. 29, 2012	Mar. 31, 2015	Mar. 31, 2014	Dec. 31, 2014
Fair Value, Option, Quantitative Disclosures [Line Items]
Assets, unpaid principal balance (UPB)		$2,173		$1,380
Total assets at fair value		2,233		1,407
Assets, fair value over/(under) UPB		60		27
Long-term debt, fair value		-70		-84
Litigation settlement payment amount	118	118
Loans held-for-sale
Fair Value, Option, Quantitative Disclosures [Line Items]
Assets, unpaid principal balance (UPB)		1,957		1,144
Total assets at fair value		2,044		1,196
Assets, fair value over/(under) UPB		87		52
Loans held-for-sale | Net gain on loan sales
Fair Value, Option, Quantitative Disclosures [Line Items]
Changes in fair value, gain (loss)		105.2	63
Loans held-for-investment
Fair Value, Option, Quantitative Disclosures [Line Items]
Assets, unpaid principal balance (UPB)		216		236
Total assets at fair value		189		211
Assets, fair value over/(under) UPB		-27		-25
Loans held-for-investment | Interest income on loans
Fair Value, Option, Quantitative Disclosures [Line Items]
Changes in fair value, gain (loss)		3.3	0
Loans held-for-investment | Other noninterest income
Fair Value, Option, Quantitative Disclosures [Line Items]
Changes in fair value, gain (loss)		-20.3	-4.3
Long-term debt
Fair Value, Option, Quantitative Disclosures [Line Items]
Liabilities, unpaid principal balance		-72		-88
Long-term debt, fair value		-70		-84
Liabilities, fair value over/(under) UPB		2		4
Long-term debt | Other noninterest income
Fair Value, Option, Quantitative Disclosures [Line Items]
Changes in fair value, gain (loss)		14.7	4.1
DOJ litigation settlement
Fair Value, Option, Quantitative Disclosures [Line Items]
Changes in fair value, gain (loss)		-0.1	-1
Fair value, Liabilities		-82		-82
Nonperforming
Fair Value, Option, Quantitative Disclosures [Line Items]
Assets, unpaid principal balance (UPB)		12		11
Total assets at fair value		5		5
Assets, fair value over/(under) UPB		-7		-6
Nonperforming | Loans held-for-sale
Fair Value, Option, Quantitative Disclosures [Line Items]
Assets, unpaid principal balance (UPB)		0		0
Total assets at fair value		0		0
Assets, fair value over/(under) UPB		0		0
Nonperforming | Loans held-for-investment
Fair Value, Option, Quantitative Disclosures [Line Items]
Assets, unpaid principal balance (UPB)		12		11
Total assets at fair value		5		5
Assets, fair value over/(under) UPB		-7		-6
Performing
Fair Value, Option, Quantitative Disclosures [Line Items]
Assets, unpaid principal balance (UPB)		2,161		1,369
Total assets at fair value		2,228		1,402
Assets, fair value over/(under) UPB		67		33
Performing | Loans held-for-sale
Fair Value, Option, Quantitative Disclosures [Line Items]
Assets, unpaid principal balance (UPB)		1,957		1,144
Total assets at fair value		2,044		1,196
Assets, fair value over/(under) UPB		87		52
Performing | Loans held-for-investment
Fair Value, Option, Quantitative Disclosures [Line Items]
Assets, unpaid principal balance (UPB)		204		225
Total assets at fair value		184		206
Assets, fair value over/(under) UPB		-20		-19
DOJ Agreement | Additional payments
Fair Value, Option, Quantitative Disclosures [Line Items]
Litigation settlement payment amount		$118		$118

Segment_Information_Details

Segment Information (Details) (USD $)	3 Months Ended
In Millions, unless otherwise specified	Mar. 31, 2015	Mar. 31, 2014	Dec. 31, 2014
	segment
Segment Reporting Information [Line Items]
Number of operating segments	4
Summary of Operations
Net interest income	$64.90	$58.20
Net gain on loan sales	91.3	45.3
Representation and warranty reserve - change in estimate	1.5	1.7
Other noninterest income	25.5	28
Total net interest income and noninterest income	183.2	133.2
Provision for loan losses	3.5	-112.3
Asset resolution	-7.8	-11.5
Depreciation and amortization expense	-5.5	-5.8
Other noninterest expense	-123.7	-122
Total noninterest expense	-137	-139.3
Income (loss) before federal income taxes	49.7	-118.4
Provision (benefit) for federal income taxes	18.2	-40
Net income (loss)	31.5	-78.4
Intersegment revenue	0	0
Average balances
Loans held-for-sale	1,842	1,297
Loans with government guarantees	865	1,270
Loans held-for-investment	4,293	3,864
Total assets	11,571		9,840
Interest-bearing deposits	5,985	5,230
QTD
Average balances
Total assets	10,856	9,308
Mortgage Origination
Summary of Operations
Net interest income	16.2	12.2
Net gain on loan sales	96.1	47.4
Representation and warranty reserve - change in estimate	0	0
Other noninterest income	16.6	12
Total net interest income and noninterest income	128.9	71.6
Provision for loan losses	0	0
Asset resolution	0	0
Depreciation and amortization expense	-0.5	-0.2
Other noninterest expense	-55.3	-53.5
Total noninterest expense	-55.8	-53.7
Income (loss) before federal income taxes	73.1	17.9
Provision (benefit) for federal income taxes	0	0
Net income (loss)	73.1	17.9
Intersegment revenue	7.7	3.8
Average balances
Loans held-for-sale	1,801	1,219
Loans with government guarantees	0	0
Loans held-for-investment	0	0
Interest-bearing deposits	0	0
Mortgage Origination | QTD
Average balances
Total assets	1,974	1,363
Mortgage Servicing
Summary of Operations
Net interest income	3.5	5.4
Net gain on loan sales	0	0
Representation and warranty reserve - change in estimate	1.5	1.7
Other noninterest income	13.4	13.1
Total net interest income and noninterest income	18.4	20.2
Provision for loan losses	0	0
Asset resolution	-7	-10.8
Depreciation and amortization expense	-0.8	-1.6
Other noninterest expense	-27.2	-22.9
Total noninterest expense	-35	-35.3
Income (loss) before federal income taxes	-16.6	-15.1
Provision (benefit) for federal income taxes	0	0
Net income (loss)	-16.6	-15.1
Intersegment revenue	2.5	5
Average balances
Loans held-for-sale	0	0
Loans with government guarantees	865	1,270
Loans held-for-investment	0	0
Interest-bearing deposits	0	0
Mortgage Servicing | QTD
Average balances
Total assets	1,170	1,415
Community Banking
Summary of Operations
Net interest income	38.4	34.7
Net gain on loan sales	-4.8	-2.1
Representation and warranty reserve - change in estimate	0	0
Other noninterest income	6.7	-13.5
Total net interest income and noninterest income	40.3	19.1
Provision for loan losses	3.5	-112.3
Asset resolution	-0.8	-0.7
Depreciation and amortization expense	-1.3	-1.1
Other noninterest expense	-38.8	-42.1
Total noninterest expense	-40.9	-43.9
Income (loss) before federal income taxes	2.9	-137.1
Provision (benefit) for federal income taxes	0	0
Net income (loss)	2.9	-137.1
Intersegment revenue	-4.9	-2.1
Average balances
Loans held-for-sale	41	78
Loans with government guarantees	0	0
Loans held-for-investment	4,167	3,864
Interest-bearing deposits	5,985	5,230
Community Banking | QTD
Average balances
Total assets	4,106	3,928
Other
Summary of Operations
Net interest income	6.8	5.9
Net gain on loan sales	0	0
Representation and warranty reserve - change in estimate	0	0
Other noninterest income	-11.2	16.4
Total net interest income and noninterest income	-4.4	22.3
Provision for loan losses	0	0
Asset resolution	0	0
Depreciation and amortization expense	-2.9	-2.9
Other noninterest expense	-2.4	-3.5
Total noninterest expense	-5.3	-6.4
Income (loss) before federal income taxes	-9.7	15.9
Provision (benefit) for federal income taxes	18.2	-40
Net income (loss)	-27.9	55.9
Intersegment revenue	-5.3	-6.7
Average balances
Loans held-for-sale	0	0
Loans with government guarantees	0	0
Loans held-for-investment	126	0
Interest-bearing deposits	0	0
Other | QTD
Average balances
Total assets	$3,606	$2,602

Restatement_of_Consolidated_St2

Restatement of Consolidated Statements of Cash Flows (Details) (USD $)	3 Months Ended
	Mar. 31, 2015	Mar. 31, 2014
Operating Activities
Net income (loss)	$31,500,000	($78,400,000)
Adjustments to reconcile net income (loss) to net cash used in operating activities:
Provision for loan losses	-3,500,000
Representation and warranty benefit	-1,500,000	-1,700,000
Depreciation and amortization	5,700,000
Deferred income taxes	18,000,000
Changes in fair value of MSRs, DOJ litigation settlement liability and long-term debt	28,800,000
Premium, change in fair value, and other non-cash changes	-263,300,000
Net gain on loan and asset sales	-90,700,000
Proceeds from sales of loans held-for-sale (HFS)	3,790,400,000
Origination and repurchase of loans, net of principal repayments	-6,927,900,000
Decrease in accrued interest receivable	-2,500,000
Decrease in other assets, excludes purchase of other investments	17,400,000
Net charge-offs in representation and warranty reserve	-500,000
Decrease in other liabilities	-12,700,000
Net cash used in operating activities	-3,410,800,000
Investing Activities
Proceeds from sale of available for sale securities including loans that have been securitized/Proceeds received from sale of investment securities available-for-sale	2,706,200,000
Collection of principal on investment securities available-for-sale/Repayment of investment securities available-for-sale	53,400,000
Purchase of investment securities available-for-sale and other	-652,000,000
Proceeds received from the sale of held-for-investment loans (HFI)/Net change from sales of loans held-for-investment	277,000,000
Origination and purchase of loans HFI, net of principal repayments	-589,400,000
Proceeds from the disposition of repossessed assets	5,400,000
Acquisitions of premises and equipment, net of proceeds	-8,500,000
Proceeds from the sale of mortgage servicing rights	31,700,000
Net cash provided by investing activities	1,823,800,000
Financing Activities
Net increase in deposit accounts	480,800,000
Repayment of Federal Home Loan Bank advances/Net increase in Federal Home Loan Bank Advances	-4,144,000,000
Proceeds from increases in Federal Home Loan Bank Advances	5,255,000,000
Repayment of trust preferred securities and long-term debt	-15,500,000
Net receipt of payments of loans serviced for others	113,700,000
Net receipt of escrow payments	2,400,000
Net cash provided by financing activities	1,692,400,000
Net increase (decrease) in cash and cash equivalents	105,400,000
Beginning cash and cash equivalents	136,000,000
Ending cash and cash equivalents	241,400,000
Supplemental disclosure of cash flow information
Interest paid on deposits and other borrowings	11,800,000
Income tax payments	3,000,000
Non-cash reclassification of loans originated HFI to loans HFS	277,000,000
Non-cash reclassification of loans originated HFS to HFI	5,000,000
Non-cash reclassification of loans HFS to AFS securities	2,709,300,000
Mortgage servicing rights resulting from sale or securitization of loans	67,900,000
As Restated
Operating Activities
Net income (loss)		-78,400,000
Adjustments to reconcile net income (loss) to net cash used in operating activities:
Provision for loan losses		112,300,000
Representation and warranty benefit		-1,700,000
Depreciation and amortization		5,600,000
Deferred income taxes		-36,700,000
Changes in fair value of MSRs, DOJ litigation settlement liability and long-term debt		11,900,000
Premium, change in fair value, and other non-cash changes		-136,200,000
Net gain on loan and asset sales		-48,400,000
Proceeds from sales of loans held-for-sale (HFS)		3,032,800,000
Origination and repurchase of loans, net of principal repayments		-4,686,400,000
Decrease in accrued interest receivable		-3,200,000
Decrease in other assets, excludes purchase of other investments		14,400,000
Net charge-offs in representation and warranty reserve		-5,600,000
Decrease in other liabilities		-41,900,000
Net cash used in operating activities		-1,861,500,000
Investing Activities
Proceeds from sale of available for sale securities including loans that have been securitized/Proceeds received from sale of investment securities available-for-sale		1,909,000,000
Collection of principal on investment securities available-for-sale/Repayment of investment securities available-for-sale		30,900,000
Purchase of investment securities available-for-sale and other		-205,600,000
Proceeds received from the sale of held-for-investment loans (HFI)/Net change from sales of loans held-for-investment		35,100,000
Origination and purchase of loans HFI, net of principal repayments		-312,600,000
Proceeds from the disposition of repossessed assets		10,000,000
Acquisitions of premises and equipment, net of proceeds		-7,800,000
Proceeds from the sale of mortgage servicing rights		11,700,000
Net cash provided by investing activities		1,470,700,000
Financing Activities
Net increase in deposit accounts		170,000,000
Repayment of Federal Home Loan Bank advances/Net increase in Federal Home Loan Bank Advances		-4,195,000,000
Proceeds from increases in Federal Home Loan Bank Advances		4,332,000,000
Repayment of trust preferred securities and long-term debt		-5,400,000
Net receipt of payments of loans serviced for others		24,900,000
Net receipt of escrow payments		3,000,000
Net cash provided by financing activities		329,500,000
Net increase (decrease) in cash and cash equivalents		-61,300,000
Beginning cash and cash equivalents		280,500,000
Ending cash and cash equivalents		219,200,000
Supplemental disclosure of cash flow information
Interest paid on deposits and other borrowings		6,400,000
Income tax payments		0
Non-cash reclassification of loans originated HFI to loans HFS		308,300,000
Non-cash reclassification of loans originated HFS to HFI		4,600,000
Non-cash reclassification of loans HFS to AFS securities		1,889,100,000
Mortgage servicing rights resulting from sale or securitization of loans		51,000,000
As Reported
Operating Activities
Net income (loss)		-78,400,000
Adjustments to reconcile net income (loss) to net cash used in operating activities:
Provision for loan losses		112,300,000
Representation and warranty benefit		-1,700,000
Depreciation and amortization		5,800,000
Loss on fair value of mortgage servicing rights		9,600,000
Loss on fair value of long term debt		1,300,000
Net transaction costs on sales of mortgage servicing rights		-3,600,000
Net gain on investment securities		-200,000
Net gain on loan and asset sales		-48,300,000
Proceeds from sales of loans held-for-sale (HFS)		3,555,700,000
Origination and repurchase of loans, net of principal repayments		-5,296,000,000
Decrease in repurchase loans with government guarantees, net of claims received		7,000,000
Decrease in accrued interest receivable		-3,200,000
Decrease in other assets, excludes purchase of other investments		-16,100,000
Increase in payable for mortgage repurchase option		-5,000,000
Net charge-offs in representation and warranty reserve		-5,600,000
Decrease in other liabilities		-41,200,000
Net cash used in operating activities		-1,807,600,000
Investing Activities
Proceeds from sale of available for sale securities including loans that have been securitized/Proceeds received from sale of investment securities available-for-sale		1,846,300,000
Collection of principal on investment securities available-for-sale/Repayment of investment securities available-for-sale		30,700,000
Purchase of investment securities available-for-sale and other		-205,500,000
Proceeds received from the sale of held-for-investment loans (HFI)/Net change from sales of loans held-for-investment		-276,400,000
Principal repayments net of origination of loans held-for-investment		13,800,000
Proceeds from the disposition of repossessed assets		10,000,000
Acquisitions of premises and equipment, net of proceeds		-7,800,000
Proceeds from the sale of mortgage servicing rights		5,700,000
Net cash provided by investing activities		1,416,800,000
Financing Activities
Net increase in deposit accounts		170,000,000
Repayment of Federal Home Loan Bank advances/Net increase in Federal Home Loan Bank Advances		137,000,000
Repayment of trust preferred securities and long-term debt		-5,400,000
Net receipt of payments of loans serviced for others		24,900,000
Net receipt of escrow payments		3,000,000
Net cash provided by financing activities		329,500,000
Net increase (decrease) in cash and cash equivalents		-61,300,000
Beginning cash and cash equivalents		280,500,000
Ending cash and cash equivalents		219,200,000
Supplemental disclosure of cash flow information
Interest paid on deposits and other borrowings		6,200,000
Income tax payments		300,000
Non-cash reclassification of loans originated HFI to loans HFS		281,000,000
Non-cash reclassification of loans originated HFS to HFI		4,600,000
Mortgage servicing rights resulting from sale or securitization of loans		51,000,000
Loans held-for-investment transferred to repossessed assets		$16,000,000