Flagstar Bancorp (FBC) 10-K 12 Mar 18 2017 FY Annual report Financial data

Document and Entity Information

Document and Entity Information - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2017	Mar. 08, 2018	Jun. 30, 2017
Document and Entity Information [Abstract]
Entity Registrant Name	FLAGSTAR BANCORP INC
Entity Central Index Key	1,033,012
Document Type	10-K
Document Period End Date	Dec. 31, 2017
Amendment Flag	false
Document Fiscal Year Focus	2,017
Document Fiscal Period Focus	FY
Current Fiscal Year End Date	--12-31
Entity Well-known Seasoned Issuer	No
Entity Voluntary Filers	No
Entity Current Reporting Status	Yes
Entity Filer Category	Accelerated Filer
Entity Public Float			$ 665
Entity Common Stock, Shares Outstanding		57,363,798

Consolidated Statements of Fina

Consolidated Statements of Financial Condition - USD ($) $ in Millions	Dec. 31, 2017	Dec. 31, 2016
Assets
Cash	$ 122	$ 84
Interest-earning deposits	82	74
Total cash and cash equivalents	204	158
Investment securities available-for-sale	1,853	1,480
Investment securities held-to-maturity	939	1,093
Loans held-for-sale ($4,300 and $3,145 measured at fair value, respectively)	4,321	3,177
Loans held-for-investment ($12 and $72 measured at fair value, respectively)	7,713	6,065
Loans with government guarantees	271	365
Less: allowance for loan losses	(140)	(142)
Total loans held-for-investment and loans with government guarantees, net	7,844	6,288
Mortgage servicing rights	291	335
Net deferred tax asset	136	286
Federal Home Loan Bank stock	303	180
Premises and equipment, net	330	275
Other assets	691	781
Total assets	16,912	14,053
Liabilities and Stockholders’ Equity
Noninterest bearing deposits	2,049	2,077
Interest bearing deposits	6,885	6,723
Total deposits	8,934	8,800
Short-term Federal Home Loan Bank advances	4,260	1,780
Long-term Federal Home Loan Bank advances	1,405	1,200
Other long-term debt	494	493
Representation and warranty reserve	15	27
Other liabilities ($60 and $60 measured at fair value, respectively)	405	417
Total liabilities	15,513	12,717
Stockholders’ Equity
Common stock $0.01 par value, 80,000,000 and 70,000,000 shares authorized; 57,321,228 and 56,824,802 shares issued and outstanding, respectively	1	1
Additional paid in capital	1,512	1,503
Accumulated other comprehensive (loss) income	(16)	(7)
Accumulated deficit	(98)	(161)
Total stockholders’ equity	1,399	1,336
Total liabilities and stockholders’ equity	$ 16,912	$ 14,053

Consolidated Statements of Fin3

Consolidated Statements of Financial Condition (Parenthetical) - USD ($) $ in Millions	Dec. 31, 2017	Dec. 31, 2016
Assets
Loans held-for-sale, fair value	$ 4,300	$ 3,145
Loans held-for-investment, fair value	12	72
Liabilities and Stockholders' Equity
Other liabilities, fair value	$ 60	$ 60
Stockholders' Equity
Common stock, par value (in usd per share)	$ 0.01	$ 0.01
Common stock, shares authorized (in shares)	80,000,000	70,000,000
Common stock, shares issued (in shares)	57,321,228	56,824,802
Common stock, shares outstanding (in shares)	57,321,228	56,824,802

Consolidated Statements of Oper

Consolidated Statements of Operations - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Interest Income
Loans	$ 446	$ 348	$ 295
Investment securities	80	68	59
Interest-earning deposits and other	1	1	1
Total interest income	527	417	355
Interest Expense
Deposits	52	46	42
Short-term Federal Home Loan Bank advances and other	36	5	1
Long-term Federal Home Loan Bank advances	24	27	18
Other long-term debt	25	16	7
Total interest expense	137	94	68
Net interest income	390	323	287
Provision (benefit) for loan losses	6	(8)	(19)
Net interest income after provision (benefit) for loan losses	384	331	306
Noninterest Income
Net gain on loan sales	268	316	288
Loan fees and charges	82	76	67
Deposit fees and charges	18	22	25
Loan administration income	21	18	26
Net return (loss) on mortgage servicing rights	22	(26)	28
Representation and warranty benefit	13	19	19
Other noninterest income	46	62	17
Total noninterest income	470	487	470
Noninterest Expense
Compensation and benefits	299	269	237
Commissions	72	55	39
Occupancy and equipment	103	85	81
Loan processing expense	57	55	52
Legal and professional expense	30	29	36
Other noninterest expense	82	67	91
Total noninterest expense	643	560	536
Income (loss) before income taxes	211	258	240
Provision for income taxes	148	87	82
Net income	$ 63	$ 171	$ 158
Net income per share
Basic (in usd per share)	$ 1.11	$ 2.71	$ 2.27
Diluted (in usd per share)	$ 1.09	$ 2.66	$ 2.24
Weighted average shares outstanding
Basic (in shares)	57,093,868	56,569,307	56,426,977
Diluted (in shares)	58,178,343	57,597,667	57,164,523

Consolidated Statements of Comp

Consolidated Statements of Comprehensive Income (Loss) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Statement of Comprehensive Income [Abstract]
Net income	$ 63	$ 171	$ 158
Other comprehensive income (loss), net of tax
Investment securities	(10)	(13)	(3)
Derivatives and hedging activities	1	4	(3)
Other comprehensive income (loss), net of tax	(9)	(9)	(6)
Comprehensive income	$ 54	$ 162	$ 152

Consolidated Statements of Stoc

Consolidated Statements of Stockholders' Equity - USD ($) $ in Millions	Total	Preferred Stock	Common Stock	Additional Paid in Capital	Accumulated Other Comprehensive Income (Loss)	Retained Earnings (Accumulated Deficit)
Beginning Balance (in shares) at Dec. 31, 2014		266,657	56,332,307
Beginning Balance at Dec. 31, 2014	$ 1,373	$ 267	$ 1	$ 1,482	$ 8	$ (385)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	158					158
Total other comprehensive income (loss)	(6)				(6)
Accretion of preferred stock (in shares)			150,951
Accretion of preferred stock	(3)	$ 0		3		0
Stock-based compensation (in shares)			0
Stock-based compensation	1			1
Ending Balance (in shares) at Dec. 31, 2015		266,657	56,483,258
Ending balance at Dec. 31, 2015	1,529	$ 267	$ 1	1,486	2	(227)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	171					171
Total other comprehensive income (loss)	(9)				(9)
Preferred stock redemption (in shares)		(266,657)
Preferred stock redemption	(267)	$ (267)
Dividends on preferred stock	(105)					(105)
Warrant exercise (in shares)			0
Warrant exercise	6			6
Stock-based compensation (in shares)			341,544
Stock-based compensation	11			11
Ending Balance (in shares) at Dec. 31, 2016		0	56,824,802
Ending balance at Dec. 31, 2016	1,336	$ 0	$ 1	1,503	(7)	(161)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	63					63
Total other comprehensive income (loss)	(9)				(9)
Warrant exercise (in shares)			154,313
Warrant exercise	4			4		0
Shares issued from Employee Stock Purchase Plan			48,032
Stock-based compensation (in shares)			294,081
Stock-based compensation	5			5
Ending Balance (in shares) at Dec. 31, 2017		0	57,321,228
Ending balance at Dec. 31, 2017	$ 1,399	$ 0	$ 1	$ 1,512	$ (16)	$ (98)

Consolidated Statements of Cash

Consolidated Statements of Cash Flows - USD ($)	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Operating Activities
Net income	$ 63,000,000	$ 171,000,000	$ 158,000,000
Adjustments to reconcile net income to net cash used in operating activities:
Depreciation and amortization	40,000,000	32,000,000	24,000,000
Representation and warranty (benefit)	(13,000,000)	(19,000,000)	(19,000,000)
Provision (benefit) for loan losses	6,000,000	(8,000,000)	(19,000,000)
Changes in valuation allowance on DTAs	0	2,000,000	11,000,000
Net gain on loan and asset sales	(268,000,000)	(314,000,000)	(288,000,000)
Proceeds from sales of HFS	9,245,000,000	16,168,000,000	18,467,000,000
Origination, premium paid and purchase of loans, net of principal repayments	(34,235,000,000)	(32,295,000,000)	(28,008,000,000)
Change in fair value and other non-cash changes	(280,000,000)	(168,000,000)	(132,000,000)
Net change in:
Accrued interest receivable	(11,000,000)	(1,000,000)	(8,000,000)
Deferred income taxes	150,000,000	76,000,000	67,000,000
Other assets, excludes purchase of other investments	54,000,000	(59,000,000)	211,000,000
Other liabilities	(42,000,000)	55,000,000	(11,000,000)
Net cash (used in) operating activities	(25,291,000,000)	(16,360,000,000)	(9,547,000,000)
Investing Activities
Proceeds from sale of AFS securities including loans that have been securitized	24,646,000,000	17,422,000,000	9,098,000,000
Collection of principal on investment securities AFS	218,000,000	187,000,000	218,000,000
Purchase of investment securities AFS and other	(904,000,000)	(680,000,000)	(1,148,000,000)
Collection of principal on investment securities HTM	154,000,000	190,000,000	85,000,000
Purchase of investment securities HTM and other	0	(15,000,000)	(217,000,000)
Proceeds received from the sale of LHFI	104,000,000	229,000,000	946,000,000
Net origination, purchase, and principal repayments of LHFI	(1,760,000,000)	(1,054,000,000)	(3,106,000,000)
Purchase of bank owned life insurance	(50,000,000)	(85,000,000)	(175,000,000)
Net purchase of FHLB stock	(123,000,000)	(10,000,000)	(15,000,000)
Acquisition of premises and equipment, net of proceeds	(97,000,000)	(52,000,000)	(46,000,000)
Proceeds from the sale of MSRs	309,000,000	69,000,000	245,000,000
Other, net	(3,000,000)	0	0
Net cash provided by investing activities	22,494,000,000	16,201,000,000	5,885,000,000
Financing Activities
Net change in deposit accounts	134,000,000	866,000,000	866,000,000
Net change in short term FHLB borrowings and other short-term debt	2,480,000,000	(336,000,000)	1,902,000,000
Proceeds from increases in FHLB long-term advances and other debt	255,000,000	445,000,000	1,500,000,000
Repayment of long-term FHLB advances	(50,000,000)	(425,000,000)	(375,000,000)
Repayment of trust preferred securities and long-term debt	0	0	(88,000,000)
Net receipt of payments of loans serviced for others	22,000,000	(64,000,000)	(76,000,000)
Preferred stock dividends	0	(105,000,000)	0
Redemption of preferred stock	0	(267,000,000)	0
Net receipt (disbursement) of escrow payments	3,000,000	(5,000,000)	5,000,000
Other	(1,000,000)	0	0
Net cash provided by financing activities	2,843,000,000	109,000,000	3,734,000,000
Net increase (decrease) in cash and cash equivalents	46,000,000	(50,000,000)	72,000,000
Beginning cash and cash equivalents	158,000,000	208,000,000	136,000,000
Ending cash and cash equivalents	204,000,000	158,000,000	208,000,000
Supplemental disclosure of cash flow information
Interest paid on deposits and other borrowings	136,000,000	112,000,000	58,000,000
Income tax payments	5,000,000	7,000,000	6,000,000
Non-cash reclassification of investment securities AFS to HTM	0	0	1,112,000,000
Non-cash reclassification of LHFI to LHFS	131,000,000	1,331,000,000	1,140,000,000
Non-cash reclassification of mortgage loans HFS to HFI	1,000,000	2,000,000	30,000,000
Non-cash reclassification of mortgage LHFS to AFS securities	24,345,000,000	17,130,000,000	8,853,000,000
Non-cash reclassification of loans with government guarantees to other assets	0	0	373,000,000
MSRs resulting from sale or securitization of loans	$ 288,000,000	$ 228,000,000	$ 260,000,000

Description of Business, Basis

Description of Business, Basis of Presentation, and Summary of Significant Accounting Policies	12 Months Ended
	Dec. 31, 2017
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Description of Business, Basis of Presentation, and Summary of Significant Accounting Policies	Description of Business, Basis of Presentation, and Summary of Significant Accounting Policies Description of Business Flagstar Bancorp, Inc., is a savings and loan holding company founded in 1993. The Company's business is primarily conducted through its principal subsidiary, Flagstar Bank, FSB (the "Bank"), a federally chartered stock savings bank founded in 1987. We are one of the largest banks headquartered in Michigan. When we refer to "Flagstar", "the Company", "we", "our", or "us," we mean Flagstar Bancorp, Inc. and our consolidated subsidiaries. The Company is subject to regulation, examination and supervision by the Board of Governors of the Federal Reserve ("Federal Reserve"). The Bank is subject to regulation, examination and supervision by the OCC of the U.S. Department of the Treasury, the CFPB and the FDIC. The Bank is a member of the FHLB of Indianapolis and its deposits are insured by the FDIC through the Deposit Insurance Fund. Consolidation and Basis of Presentation The accounting and financial reporting policies of us and our subsidiaries conform to accounting principles generally accepted in the United States. Additionally, where applicable the policies conform to the accounting and reporting guidelines prescribed by regulatory authorities. Certain prior period amounts have been reclassified to conform to the current period presentation. The preparation of the Consolidated Financial Statements, requires management to make estimates and assumptions that affect reported amounts of assets and liabilities, revenues and expenses and disclosures of contingent assets and liabilities. Actual results could be materially different from these estimates. Subsequent Events We have evaluated all subsequent events for potential recognition and disclosure through the filing date of this Form 10-K. Cash and Cash Equivalents Cash and cash equivalents include cash on hand, amounts due from correspondent banks and the FRB, and short-term investments that have a maturity at the date of acquisition of three months or less and are readily convertible to cash. Investment Securities We measure securities classified as AFS at fair value, with unrealized gains and losses, net of tax, included in other comprehensive income (loss) in stockholders’ equity. We recognize realized gains and losses on AFS securities when securities are sold. The cost of securities sold is based on the specific identification method. Any gains or losses realized upon the sale of a security are reported in other noninterest income in the Consolidated Statements of Operations. The fair value of investment securities is based on observable market prices, when available. If observable market prices are not available, our valuations are based on alternative methods, including: quotes for similar fixed-income securities, matrix pricing, or discounted cash flow methods. The fair values, obtained through an independent third party utilizing a pricing service, are compared to independent pricing sources on a quarterly basis. For further information, see Note 2 - Investment Securities and Note 22 - Fair Value Measurements. Investment securities HTM are carried at amortized cost and adjusted for amortization of premiums and accretion of discounts using the interest method. Transfers of investment securities into the HTM category from the AFS category are accounted for at fair value at the date of transfer. Any related unrealized holding gain (loss), net of tax, that was included in the transfer is retained in other comprehensive income (loss) and is amortized as an adjustment to interest income over the remaining life of the securities. We evaluate AFS and HTM investment securities for OTTI on a quarterly basis. An OTTI is considered to have occurred when the fair value of a debt security is below its amortized costs and we (1) have the intent to sell the security, (2) will more likely than not be required to sell the security before recovery of its amortized cost, or (3) does not expect to recover the entire amortized cost basis of the security. Investments that have an OTTI are written down through a charge to earnings for the amount representing the credit loss on the security. Gains and losses related to all other factors are recognized in other comprehensive income (loss). For the years ended December 31, 2015 through December 31, 2017, we did not recognize any OTTI losses. Investment securities transactions are recorded on the trade date for purchases and sales. Interest earned on investment securities, including the amortization of premiums and the accretion of discounts are determined using the effective interest method over the period of maturity, recorded in interest income in the Consolidated Statements of Operations. For further information, see Note 2 - Investment Securities. Loans Held-for-Sale We classify loans as LHFS when we originate or purchase loans that we intend to sell. We have elected the fair value option for the majority of our LHFS. We estimate the fair value of mortgage loans based on quoted market prices for securities backed by similar types of loans, where available, or by discounting estimated cash flows using observable inputs inclusive of interest rates, prepayment speeds and loss assumptions for similar collateral. LHFS that are recorded at lower of cost or fair value may be carried at fair value on a nonrecurring basis when the fair value is less than cost. For further information, see Note 22 - Fair Value Measurements. Loans that are transferred into the LHFS portfolio from the LHFI portfolio, due to a change in intent, are recorded at the lower of cost or fair value. Gains or losses recognized upon the sale of loans are determined using the specific identification method. Loans Held-for-Investment We classify loans that we have the intent and ability to hold for the foreseeable future or until maturity as LHFI. Loans held-for-investment are reported at their amortized cost, which includes the outstanding principal balance adjusted for any unamortized premiums, discounts, deferred fees and costs. Premiums and discounts on purchased loans and non-refundable loan origination and commitment fees, net of direct costs of originating or acquiring loans, are deferred and recognized over the estimated lives of the related loans as an adjustment to the loans’ effective yield, which is included in interest income on loans in the Consolidated Statements of Operations. Loans originally classified as LHFS, for which we have elected the fair value option, and subsequently transferred to LHFI continue to be measured and reported at fair value on a recurring basis. Changes in fair value are recorded to other noninterest income on the Consolidated Statements of Operations. The fair value of these loans is determined using the same methods described above for LHFS. For further information, see Note 22 - Fair Value Measurements. When loans originally classified as LHFS or as LHFI are reclassified due to a change in intent or ability to hold, cash flows associated with the loans are classified in the Consolidated Statements of Cash Flows as operating or investing, as appropriate, in accordance with the initial classification of the loans. Past Due and Impaired Loans Loans are considered to be past due when any payment of principal or interest is 30 days past the scheduled payment date. While it is the goal of management to collect on loans, we attempt to work out a satisfactory repayment schedule or modification with past due borrowers and will undertake foreclosure proceedings if the delinquency is not satisfactorily resolved. Our practices regarding past due loans are designed to both assist borrowers in meeting their contractual obligations and minimize losses incurred by the bank. We cease the accrual of interest on all classes of consumer and commercial loans upon the earlier of, becoming 90 days past due, or when doubt exists as to the ultimate collection of principal or interest (classified as nonaccrual or nonperforming loans). When a loan is placed on nonaccrual status, the accrued interest income is reversed and the loan may only return to accrual status when principal and interest become current and are anticipated to be fully collectible. Loans are considered impaired if it is probable that payment of interest and principal will not be made in accordance with the original contractual terms of the loan agreement or when any portion of principal or interest is 90 days past due. This classification includes both performing and nonperforming modified loans. For further information, see Note 4 - Loans Held-for-Investment. When a loan is considered impaired, the accrual of interest income is discontinued until the receipt of principal and interest is no longer in doubt. Interest income is recognized on impaired loans using a cost recovery method unless amounts contractually due are not in doubt. Cash received on impaired loans are applied entirely against principal until the loan has been collected in full, after which time any additional cash receipts are recognized as interest income. Loan Modifications (Troubled Debt Restructurings) We may modify certain loans in both our consumer and commercial loan portfolios to retain customers or to maximize collection of the outstanding loan balance. We have 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. Our 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 nonperforming TDRs if the loan was nonperforming prior to the restructuring, or based upon the results of a contemporaneous credit evaluation. Such 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 be classified as performing TDRs and begin to accrue interest. Performing and nonperforming TDRs remain impaired as interest and principal will not be received in accordance with the original contractual terms of the loan agreement. 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. We measure impairments using a discounted cash flow method for performing TDRs and measure impairment based on collateral values for nonperforming TDRs. Allowance for Loan Losses The allowance for loan losses represents management's estimate of probable losses in our LHFI portfolio, excluding loans carried under the fair value option. We establish an allowance when (a) available information indicates that it is probable that a loss has occurred and (b) the amount of the loss can be reasonably estimated. The allowance provides for probable losses that have been identified with specific customer relationships (individually evaluated) and for probable losses believed to be inherent in the loan portfolio but that have not been specifically identified (collectively evaluated). Management assigns qualitative factors to each loan portfolio segment based on consideration of the following factors: changes in lending policies and procedures, changes in economic and business conditions, changes in the nature and volume of the portfolio, changes in lending management, changes in credit quality statistics, changes in the quality of the loan review system, changes in the value of underlying collateral for collateral-dependent loans, changes in concentrations of credit, and other internal or external factor changes. A specific allowance is established on impaired loans when it is probable all amounts due will not be collected pursuant to the original contractual terms of the loan and the recorded investment in the loan exceeds its fair value. The required allowance is measured using either the present value of the expected future cash flows discounted at the loan's effective interest rate or the fair value of the collateral less estimated disposal costs if the loan is collateral dependent. A general allowance is established for losses inherent on non-impaired loans by segmenting the portfolio based upon common risk characteristics. The general loss is then determined by using a historical loss model which utilizes our loss history by specific product, or if the product is not sufficiently seasoned, per readily available industry peer loss data. The loss model utilizes a loss emergence period that represents the average amount of time between when the loss event first occurs and when the specific loan is charged-off. In addition to the loss history or peer data, we also include a qualitative adjustment that considers economic risks, industry and geographic concentrations and other factors not adequately captured in our methodology. Consumer loans secured by real estate are charged-off to the estimated fair value of the collateral when a loss is confirmed or at 180 days past due, whichever is sooner. Loss confirming events include, but are not limited to, bankruptcy (unsecured), continued delinquency, foreclosure or receipt of an asset valuation indicating a collateral deficiency and the asset is the sole source of repayment. For consumer loans not secured by real estate, the charge-off is taken upon the earlier of the confirmation of a loss or 120 days past due. Commercial loans are evaluated on a loan level basis and either charged-off or written down to net realizable value if a loss confirming event has occurred. Loss confirming events include, but are not limited to, bankruptcy (unsecured), continued delinquency, foreclosure, or receipt of an asset valuation indicating a collateral deficiency and that asset is the sole source of repayment. Transfers of Financial Assets Our recognition of gain or loss on the sale of loans for which we surrender control is accounted for as a sale to the extent that 1) the transferred assets are legally isolated from us or our consolidated affiliates, even in bankruptcy or other receivership, 2) the transferee has the right to pledge or exchange the assets with no conditions that constrain the transferee and provide more than a trivial benefit to the Company, and 3) we do not maintain the obligation or unilateral ability to reclaim or repurchase the assets. If the sale criteria are met, the transferred financial assets are removed from the Consolidated Statements of Financial Condition and a gain or loss on sale is recognized. Variable Interest Entities An entity that has a controlling financial interest in a variable interest entity ("VIE") is referred to as the primary beneficiary and consolidates the VIE. An entity is deemed to have a controlling financial interest and is the primary beneficiary of a VIE if it has both the power to direct the activities of the VIE that most significantly impact the VIE’s economic performance and an obligation to absorb losses or the right to receive benefits that could potentially be significant to the VIE. For further information, see Note 7 - Variable Interest Entities. Repossessed Assets Repossessed assets include one-to-four family residential property, commercial property and one-to-four family homes under construction that were acquired through foreclosure or acceptance of a deed-in-lieu of foreclosure. Repossessed assets are initially recorded in other assets at the estimated fair value of the collateral less estimated costs to sell. Losses arising from the initial acquisition of such properties are charged against the ALLL at the time of transfer. Subsequent valuation adjustments to reflect fair value, as well as gains and losses on disposal of these properties, are charged to other noninterest expense within noninterest expense in the Consolidated Statements of Operations as incurred. For further information, see Note 6 - Repossessed Assets and Note 22 - Fair Value Measurements. Loans with Government Guarantees We originate government guaranteed loans which are pooled and sold as Ginnie Mae MBS. Pursuant to Ginnie Mae servicing guidelines, we have the unilateral right to repurchase loans 90 days or more past due securitized in Ginnie Mae pools. As a result, once the delinquency criteria have been met, and regardless of whether the repurchase option has been exercised, we account for the loans as if they had been repurchased. We recognize the loans and corresponding liability as loans with government guarantees and other liabilities, respectively, in the Consolidated Statements of Financial Condition. If the loan is repurchased, the liability is cash settled and the loan with government guarantee remains. Once repurchased, we may collect losses through a claims process with the government agency, as an approved lender. Federal Home Loan Bank Stock We own stock in the FHLB of Indianapolis as required to permit us to obtain membership in and to borrow from the FHLB. No market quotes exist for the stock. The stock is redeemable at par and is carried at cost. Premises and Equipment Premises and equipment are carried at cost less accumulated depreciation. Land is carried at historical cost. Depreciation is calculated on a straight-line basis over the estimated useful lives of the assets which generally ranges from three to thirty years. Capitalized software is amortized on a straight-line basis over its useful life, which generally ranges from three to seven years. Software expenditures, repair and maintenance costs that are considered general, administrative, or of a maintenance nature are expensed as incurred. Mortgage Servicing Rights We purchase and originate mortgage loans for sale to the secondary market and sell the loans on either a servicing-retained or servicing-released basis. If we retain the right to service the loan, an MSR is created at the time of sale which is recorded at fair value. We use an internal valuation model that utilizes an option-adjusted spread and other assumptions to determine the fair value of MSRs which include anticipated prepayment speeds (also known as the constant prepayment rate), product type (i.e., conventional, government, balloon), fixed or adjustable rate of interest, interest rate, term (i.e., 15 or 30 years), servicing costs per loan, discount rate and estimate of ancillary income such as late fees and prepayment fees. Management obtains third-party valuations of the MSR portfolio on a quarterly basis from independent valuation services to assess the reasonableness of the fair value calculated by our internal valuation model. Changes in the fair value of our mortgage servicing rights are reported on the Consolidated Statements of Operations in net return on mortgage servicing. For further information, see Note 10 - Mortgage Servicing Rights and Note 22 - Fair Value Measurements. We periodically enter into agreements to sell certain of our MSRs, which qualify as sales transactions. A transfer of servicing rights related to loans previously sold qualifies as a sale at the date on which title passes, if substantially all risks and rewards of ownership have irrevocably passed to the transferee and any protection provisions retained by the transferor are minor and can be reasonably estimated. In addition, if a sale is recognized and only minor protection provisions exist, a liability is accrued for the estimated obligation associated with those provisions. Servicing Fee Income Servicing fee income, late fees and ancillary fees received on loans for which we own the MSR, are included in the net return on mortgage servicing asset line of the Consolidated Statements of Operations. The fees are based on a contractual percentage of the outstanding principal and are recorded as income when earned. Subservicing fees, which are included in loan administration income on the Consolidated Statements of Operations are based on a contractual monthly amount per loan including late fees and other ancillary income. Derivatives We utilize derivative instruments to manage the fair value changes in our MSRs, interest rate lock commitments and LHFS portfolio which are exposed to price and interest rate risk, facilitate asset/liability management, minimize the variability of future cash flows on long-term debt, and to meet the needs of our customers. All derivatives are recognized on the Consolidated Statements of Financial Condition as other assets and liabilities, as applicable, at their estimated fair value. For those derivatives designated as qualified cash flow hedges, changes in the fair value of the derivatives, to the extent effective as a hedge, are recorded in accumulated other comprehensive income, net of income taxes, and reclassified into earnings concurrently with the earnings of the hedged item. For derivative instruments designated as qualified fair value hedges, which are used to hedge the exposure of fair value changes of an asset or liability attributable to a particular risk, the gain or loss on the derivative instrument, as well as the offsetting loss or gain on the hedged item attributable to the hedged risk, are recognized in current earnings during the period of the change in fair values. For all other derivatives, changes in the fair value of the derivative are recognized immediately in earnings. A majority of these derivatives are subject to master netting agreements and cleared through a Central Counterparty Clearing House, which mitigates non-performance risk with counterparties and enables us to settle activity on a net basis. We use interest rate swaps, swaptions, futures, and forward loan sale commitments to mitigate the impact of fluctuations in interest rates and interest rate volatility on the fair value of the MSRs. These derivatives are not designated as qualifying hedges. Accordingly, changes in their fair value are reflected in current period earnings under the net return on mortgage servicing asset. These derivatives are valued based on quoted prices for similar assets in an active market with inputs that are observable. We also enter into various derivative agreements with customers and correspondents in the form of interest-rate lock commitments and forward purchase contracts which are commitments to originate or purchase mortgage loans whereby the interest rate on the loan is determined prior to funding and the customers have locked into that interest rate. The derivatives are valued using internal models that utilize market interest rates and other unobservable inputs. Changes in the fair value of these commitments due to fluctuations in interest rates that are to be originated to our LHFS portfolio are economically hedged through the use of forward loan sale commitments of MBS. The gains and losses arising from this derivative activity are reflected in current period earnings under the net gain on loan sales. Interest rate lock commitments are valued using internal models with significant unobservable market parameters. Forward loan sale commitments are valued based on quoted prices for similar assets in an active market with inputs that are observable. At certain times we may also enter into various derivative agreements with correspondents in the form of forward purchase contracts at the time the correspondent customer enters into an interest-rate lock commitment. The derivatives are valued using internal models that utilize market interest rates and other unobservable inputs. We utilize interest rate swaps to hedge the forecasted cash flows from our underlying variable-rate FHLB advances and forecasted FHLB advances in qualifying cash flow hedge accounting relationships. Changes in the fair value of derivatives designated as cash flow hedges are recorded in other comprehensive income on the Consolidated Statement of Financial Condition and reclassified into interest expense concurrently with the interest expense on the debt. Interest rate swaps are valued based on quoted prices for similar assets in an active market with inputs that are observable. These hedges are evaluated for effectiveness using regression analysis at the time they are designated and throughout the hedge period. For forecasted FHLB advances being hedged, we evaluate the likelihood of the transaction occurring based on the current facts and circumstances each reporting period to ensure the hedge relationship still qualifies for hedge accounting. If we de-designate a hedge relationship or determine that an interest rate swap no longer qualifies for hedge accounting changes in fair value are no longer recorded in other comprehensive income. If the hedged item remains probable to occur, the effective amounts previously recorded in other comprehensive income are recognized in earnings over the remaining life of the hedged item as an adjustment to yield. We also utilize interest rate swaps to manage fair value changes of our fixed-rate FHLB advances in a qualifying fair value hedge accounting relationship. Changes in the fair value of derivatives designated as fair value hedges, as well as the change in fair value of the hedged item, are recognized in current period earnings. The corresponding adjustment is recorded as a basis adjustment to the hedged item and hedging instrument. Interest rate swaps are valued based on quoted prices for similar assets in an active market with inputs that are observable. These hedges are evaluated for effectiveness using regression analysis at the time they are designated and throughout the hedge period. If the Company determines an interest rate swap no longer qualifies for fair value hedge accounting or is de-designated, the hedged item will no longer be adjusted for changes in fair value and the amounts previously recorded as a basis adjustment are recognized in earnings over the remaining life of the hedged item as an adjustment to yield. If a previously hedged item is extinguished or sold, the remaining unamortized balance in other comprehensive income balance for prior cash flow hedges and the remaining basis adjustment of the hedged item for prior fair value hedges will be reclassified to current period earnings. To assist our customers in meeting their needs to manage interest rate risk, we enter into interest rate swap derivative contracts. To economically hedge this risk, we enter into offsetting derivative contracts to effectively eliminate the interest rate risk associated with these contracts. For additional information regarding the accounting for derivatives, see Note 11 - Derivative Financial Instruments and for additional information on recurring fair value disclosures, see Note 22 - Fair Value Measurements. Income Taxes We evaluate two components of income tax expense: current and deferred. Current income tax expense represents our estimated taxes to be paid or refunded for the current period. Deferred taxes are recognized for the future tax consequences attributable to differences between the financial statement carrying amounts of existing assets and liabilities and their respective tax bases. DTAs and liabilities are measured using enacted tax rates that will apply to taxable income in the years in which those temporary differences are expected to be recovered or settled. The effect on DTAs and liabilities of a change in tax rates is recognized as income or expense in the period that includes the enactment date. We evaluate our DTAs to determine if, based on all available evidence, it is more likely than not that they will be realized. If it is determined that it is more likely than not that the deferred taxes will not be realized, we establish a valuation allowance. For further information, see Note 19 - Income Taxes. Representation and Warranty Reserve When we sell mortgage loans into the secondary mortgage market, we make customary representations and warranties to the purchasers about various characteristics of each loan, such as the manner of origination, the nature and extent of underwriting standards applied and the types of documentation being provided. For eligible loans sold to the Agencies after December 31, 2014, these representations and warranties generally expire after 36 months. Typically, all other representations and warranties are in place for the life of the loan. If a defect in the origination process is identified, we may be required to either repurchase the loan, pay a fee or indemnify the purchaser for losses it sustains on the loan. If there are no such defects, the Company has no liability to the purchaser for losses it may incur on such loan. Upon the sale of a loan, the Company recognizes a liability for that guarantee at its fair value as a reduction of our net gain on loan sales. Subsequent to the sale, the liability is re-measured on an ongoing basis based upon an estimate of probable future losses. In each case, these estimates are based on our most recent data including loss severity on repurchased and indemnified loans, repurchase requests and other factors. Changes to our previous estimates are recorded in the representation and warranty (provision) benefit in the Consolidated Statements of Operations. Advertising Costs Advertising costs are expensed in the period they are incurred and are included as part of other noninterest expense in the Consolidated Statements of Operations. Advertising expenses totaled $16 million , $11 million , and $9 million for the years ended December 31, 2017 , 2016 and 2015 , respectively. Stock-Based Compensation All share-based payments to employees, including grants of employee stock options and restricted stock units, are classified as equity with expenses being recognized in compensation and benefits in the Consolidated Statements of Operations based on their fair values. The amount of compensation is measured at the grant date and is expensed over the requisite service period, which is normally the vesting period, and for the year ended December 31, 2017 , any forfeitures were recognized as they occurred. In addition to share-based payments to employees, the discount provided to employees through the Employee Stock Purchase Plan is also recognized as stock-based compensation. For further information, see Note 18 - Stock-Based Compensation. Department of Justice Litigation Settlement The executed settlement agreement with the DOJ representing the obligation to make future additional payments establishes a legally enforceable contract with a stipulated payment plan that meets the definition of a financial liability. We have elected the fair value option to account for this financial liability included in other liabilities on the Consolidated Financial Statements. For additional information on the valuation of the DOJ litigation settlement, see Note 22 - Fair Value Measurements. Recently Issued Accounting Pronouncements Adoption of New Accounting Standards We adopted the following accounting standard updates (ASU) during 2017 , none of which had a material impact to our financial statements: Standard Description Effective Date ASU 2016-17 Consolidation (Topic 810): Interests Held Through Related Parties That are Under Common Control January 1, 2017 ASU 2016-09 Compensation - Stock Compensation (Topic 718): Improvements to Employee Share-Based Payment Accounting January 1, 2017 ASU 2016-07 Investments - Equity Method and Joint Ventures (Topic 323): Simplifying the Transition to the Equity Method of Accounting January 1, 2017 ASU 2016-06 Derivatives and Hedging (Topic 815): Contingent Put and Call Options in Debt Instruments January 1, 2017 ASU 2016-05 Derivatives and Hedging (Topic 815): Effect of Derivative Contract Novations on Existing Hedge Relationships January 1, 2017 Accounting Standards Issued But Not Yet Adopted The following ASUs have been issued and are expected to result in a significant change to our significant accounting policies and/or have a significant financial impact: Derivatives and Hedging - In August 2017, the FASB issued ASU 2017-12, Derivatives and Hedging (Topic 815): Targeted Improvements to Accounting for Hedging Activities. The amendments were designed to more closely align hedge accounting requirements with users’ risk management strategies. ASU 2017-12 is effective for fiscal y

Investment Securities

Investment Securities	12 Months Ended
	Dec. 31, 2017
Investments, Debt and Equity Securities [Abstract]
Investment Securities	Investment Securities The following table presents our investment securities: Amortized Cost Gross Unrealized Gross Unrealized Fair Value (Dollars in millions) December 31, 2017 Available-for-sale securities Agency - Commercial $ 1,004 $ — $ (17 ) $ 987 Agency - Residential 811 — (17 ) 794 Municipal obligations 35 — (1 ) 34 Corporate debt obligations 37 1 — 38 Total available-for-sale securities (1) $ 1,887 $ 1 $ (35 ) $ 1,853 Held-to-maturity securities Agency - Commercial $ 526 $ — $ (9 ) $ 517 Agency - Residential 413 — (6 ) 407 Total held-to-maturity securities (1) $ 939 $ — $ (15 ) $ 924 December 31, 2016 Available-for-sale securities Agency - Commercial $ 551 $ 2 $ (5 ) $ 548 Agency - Residential 913 1 (16 ) 898 Municipal obligations 34 — — 34 Total available-for-sale securities (1) $ 1,498 $ 3 $ (21 ) $ 1,480 Held-to-maturity securities Agency - Commercial $ 595 $ — $ (6 ) $ 589 Agency - Residential 498 1 (4 ) 495 Total held-to-maturity securities (1) $ 1,093 $ 1 $ (10 ) $ 1,084 (1) There were no securities of a single issuer, which are not governmental or government-sponsored, that exceeded 10 percent of stockholders’ equity at December 31, 2017 or December 31, 2016 . Management evaluates our securities portfolio each quarter to determine if any security is considered to be other than temporarily impaired. In making this evaluation, management considers our ability and intent to hold securities to recover current market losses. During the years ended December 31, 2017 , 2016 and 2015 , we had no OTTI. Available-for-sale securities We purchased $904 million of AFS securities, which included U.S. government sponsored agency MBS, corporate debt obligations, and municipal obligations, during the year ended December 31, 2017 . We purchased $680 million of AFS securities, which included U.S. government sponsored agency MBS and municipal obligations during the year ended December 31, 2016 . During the year ended December 31, 2017 , we sold $289 million of U.S. government sponsored agency securities, which resulted in a gain of $3 million . During the year ended December 31, 2016 , we sold $291 million of U.S. government sponsored agency securities, which resulted in a gain of $4 million , compared to $170 million of U.S. government sponsored agencies, which resulted in a gain of $3 million during the year ended December 31, 2015 . Held-to-maturity securities There were no purchases of HTM securities during the year ended December 31, 2017 . We purchased $15 million of HTM securities, which included U.S. government sponsored agency MBS during the year ended December 31, 2016 . We purchased $217 million of HTM securities, which included agency-collateralized mortgage obligations during the year ended December 31, 2015 . We had no sales of HTM securities during the years ending December 31, 2017 , 2016 and 2015 , respectively. The following table summarizes, by duration, the unrealized loss positions on investment securities: Unrealized Loss Position with Duration 12 Months and Over Unrealized Loss Position with Duration Under 12 Months Fair Value Number of Securities Unrealized Loss Fair Value Number of Securities Unrealized Loss (Dollars in millions) December 31, 2017 Available-for-sale securities Agency - Commercial $ 218 20 $ (7 ) $ 744 41 $ (11 ) Agency - Residential 452 36 (14 ) 263 33 (3 ) Municipal obligations 6 3 — 22 9 — Corporate debt obligations — — — 3 1 — Held-to-maturity securities Agency - Commercial $ 348 25 $ (8 ) $ 99 8 $ (1 ) Agency - Residential 111 16 (3 ) 293 43 (3 ) December 31, 2016 Available-for-sale securities Agency - Commercial $ 6 1 $ — $ 345 29 $ (5 ) Agency - Residential — — — 748 55 (16 ) Municipal obligations — — — 17 8 — Held-to-maturity securities Agency - Commercial $ — — $ — $ 528 34 $ (6 ) Agency - Residential — — — 385 43 (4 ) The following shows the amortized cost and estimated fair value of securities by contractual maturity: Investment Securities Available-for-Sale Investment Securities Held-to-Maturity Amortized Cost Fair Value Weighted-Average Yield Amortized Cost Fair Value Weighted-Average Yield (Dollars in millions) December 31, 2017 Due after one year through five years 10 10 2.58 % 35 35 2.48 % Due after five years through 10 years 45 46 4.85 % 26 26 2.52 % Due after 10 years 1,832 1,797 2.40 % 878 863 2.44 % Total $ 1,887 $ 1,853 $ 939 $ 924 We pledge investment securities, primarily municipal taxable and agency collateralized mortgage obligations, to collateralize lines of credit and/or borrowings. We had pledged investment securities of $2.0 billion , $879 million , and $14 million at December 31, 2017 , 2016 and 2015 , respectively.

Loans Held-for-Sale

Loans Held-for-Sale	12 Months Ended
	Dec. 31, 2017
Receivables [Abstract]
Loans Held-for-Sale	Loans Held-for-Sale The majority of our mortgage loans originated as LHFS are sold into the secondary market on a whole loan basis or by securitizing the loans into agency, government, or private label mortgage-backed securities. At December 31, 2017 and 2016 , LHFS totaled $4.3 billion and $3.2 billion , respectively. For the years ended December 31, 2017 , 2016 and 2015 , we had net gains on loan sales associated with LHFS of $267 million , $301 million , and $288 million , respectively. At December 31, 2017 and 2016 , $21 million and $32 million , respectively, of LHFS were recorded at lower of cost or fair value. The remainder of the loans in the portfolio are recorded at fair value as we have elected the fair value option.

Loans Held-for-Investment

Loans Held-for-Investment	12 Months Ended
	Dec. 31, 2017
Receivables [Abstract]
Loans Held-for-Investment	Loans Held-for-Investment The following table presents our Loans-held-for-investment: December 31, 2017 December 31, 2016 (Dollars in millions) Consumer loans Residential first mortgage $ 2,754 $ 2,327 Home Equity 664 443 Other 25 28 Total consumer loans 3,443 2,798 Commercial loans Commercial real estate (1) 1,932 1,261 Commercial and industrial 1,196 769 Warehouse lending 1,142 1,237 Total commercial loans 4,270 3,267 Total loans held-for-investment $ 7,713 $ 6,065 (1) Includes NBV of $307 million and $244 million of owner occupied commercial real estate loans at December 31, 2017 and December 31, 2016 , respectively. During the year ended December 31, 2017 , we sold performing and nonperforming consumer loans, with UPB of $127 million , of which $25 million were nonperforming. Upon a change in our intent, the loans were transferred to LHFS and subsequently sold resulting in a gain on sale of $2 million which is recorded in net gain on loan sales on the Consolidated Statements of Operations. During the year ended December 31, 2016 , we sold performing residential first mortgage loans with UPB of $1.2 billion . Upon a change of our intent, the loans were transferred to LHFS and subsequently sold resulting in a net gain of $14 million which is recorded in net gain on loan sales on the Consolidated Statements of Operations. In addition, during the year ended December 31, 2016 , we sold nonperforming, TDR and non-agency loans with a UPB of $110 million . Upon a change of our intent, the loans were transferred to LHFS and subsequently sold resulting in a loss of $2 million which is recorded in net gain on sale of assets on the Consolidated Statements of Operations. During the year ended December 31, 2015 , we sold performing and nonperforming residential first mortgage loans with UPB totaling $1.0 billion , of which $436 million were nonperforming. Upon a change in our intent, the loans were transferred to LHFS and subsequently sold resulting in a gain on sale of $1 million , which is recorded in net gain on sale of assets on the Consolidated Statements of Operations. During the year ended December 31, 2017 , we purchased residential first mortgage loans with UPB of $8 million and HELOC loans with a UPB of $250 million . A premium of $9 million was associated with these loan purchases. During the year ended December 31, 2016 , we purchased jumbo residential first mortgage loans with a UPB of $175 million and a premium of $1 million . During the year ended December 31, 2015 , we purchased $197 million of HELOC loans with a premium of $7 million . None of the loans were impaired. We have pledged certain LHFI, LHFS, and loans with government guarantees to collateralize lines of credit and/or borrowings with the FRB of Chicago and the FHLB of Indianapolis. At December 31, 2017 and 2016 , we pledged $7.1 billion and $5.3 billion , respectively. The following table presents changes in ALLL, by class of loan: Residential First Mortgage (1) Home Equity Other Consumer Commercial Real Estate Commercial and Industrial Warehouse Lending Total (Dollars in millions) Year Ended December 31, 2017 Beginning balance ALLL $ 65 $ 24 $ 1 $ 28 $ 17 $ 7 $ 142 Charge-offs (2) (8 ) (3 ) (2 ) (1 ) — — (14 ) Recoveries 1 2 1 1 1 — 6 Provision (benefit) (11 ) (1 ) 1 17 1 (1 ) 6 Ending balance ALLL $ 47 $ 22 $ 1 $ 45 $ 19 $ 6 $ 140 Year Ended December 31, 2016 Beginning balance ALLL $ 116 $ 32 $ 2 $ 18 $ 13 $ 6 $ 187 Charge-offs (2) (29 ) (4 ) (3 ) — — — (36 ) Recoveries 2 — 3 1 — — 6 Provision (benefit) (3) (24 ) (4 ) (1 ) 9 4 1 (15 ) Ending balance ALLL $ 65 $ 24 $ 1 $ 28 $ 17 $ 7 $ 142 Year Ended December 31, 2015 Beginning balance ALLL $ 234 $ 31 $ 1 $ 17 $ 11 $ 3 $ 297 Charge-offs (87 ) (7 ) (4 ) — (3 ) — (101 ) Recoveries 3 2 3 2 — — 10 Provision (benefit) (34 ) 6 2 (1 ) 5 3 (19 ) Ending balance ALLL $ 116 $ 32 $ 2 $ 18 $ 13 $ 6 $ 187 (1) Includes allowance and charge-offs related to loans with government guarantees. (2) Includes charge-offs of $1 million , $8 million and $69 million related to the transfer and subsequent sale of loans during the years ended December 31, 2017 , December 31, 2016 and December 31, 2015 , respectively. Also includes charge-offs related to loans with government guarantees of $4 million , $14 million , and $3 million during the years ended December 31, 2017 , December 31, 2016 and December 31, 2015 , respectively. (3) Does not include $7 million for provision expense for loan losses recorded in the Consolidated Statements of Operations to reserve for repossessed loans with government guarantees at December 31, 2016 . The following table sets forth the method of evaluation, by class of loan: Residential First Mortgage (1) Home Equity Other Consumer Commercial Real Estate Commercial and Industrial Warehouse Lending Total (Dollars in millions) December 31, 2017 Loans held-for-investment (2) Individually evaluated $ 34 $ 27 $ — $ — $ — $ — $ 61 Collectively evaluated 2,712 633 25 1,932 1,196 1,142 $ 7,640 Total loans $ 2,746 $ 660 $ 25 $ 1,932 $ 1,196 $ 1,142 $ 7,701 Allowance for loan losses (2) Individually evaluated $ 6 $ 10 $ — $ — $ — $ — $ 16 Collectively evaluated 41 12 1 45 19 6 124 Total allowance for loan losses $ 47 $ 22 $ 1 $ 45 $ 19 $ 6 $ 140 December 31, 2016 Loans held-for-investment (2) Individually evaluated $ 46 $ 29 $ — $ — $ — $ — $ 75 Collectively evaluated 2,274 349 28 1,261 769 1,237 $ 5,918 Total loans $ 2,320 $ 378 $ 28 $ 1,261 $ 769 $ 1,237 $ 5,993 Allowance for loan losses (2) Individually evaluated $ 5 $ 8 $ — $ — $ — $ — $ 13 Collectively evaluated 60 16 1 28 17 7 $ 129 Total allowance for loan losses $ 65 $ 24 $ 1 $ 28 $ 17 $ 7 $ 142 (1) Includes allowance related to loans with government guarantees. (2) Excludes loans carried under the fair value option. The following table sets forth the LHFI aging analysis of past due and current loans (for further information on our policy past due and impaired loans, see Note 1 - Description of Business, Basis of Presentation, and Summary of Significant Accounting Policies): 30-59 Days Past Due 60-89 Days Past Due 90 Days or Greater Past Due (1) Total Past Due Current Total LHFI (Dollars in millions) December 31, 2017 Consumer loans Residential first mortgage $ 2 $ 2 $ 23 $ 27 $ 2,727 $ 2,754 Home equity 1 — 6 7 657 664 Other — — — — 25 25 Total consumer loans 3 2 29 34 3,409 3,443 Commercial loans Commercial real estate — — — — 1,932 1,932 Commercial and industrial — — — — 1,196 1,196 Warehouse lending — — — — 1,142 1,142 Total commercial loans — — — — 4,270 4,270 Total loans (2) $ 3 $ 2 $ 29 $ 34 $ 7,679 $ 7,713 December 31, 2016 Consumer loans Residential first mortgage $ 6 $ — $ 29 $ 35 $ 2,292 $ 2,327 Home equity 1 2 11 14 429 443 Other 1 — — 1 27 28 Total consumer loans 8 2 40 50 2,748 2,798 Commercial loans Commercial real estate — — — — 1,261 1,261 Commercial and industrial — — — — 769 769 Warehouse lending — — — — 1,237 1,237 Total commercial loans — — — — 3,267 3,267 Total loans (2) $ 8 $ 2 $ 40 $ 50 $ 6,015 $ 6,065 (1) Includes less than 90 days past due performing loans which are deemed nonaccrual. Interest is not being accrued on these loans. (2) Includes $4 million and $13 million of loans 90 days or greater past due accounted for under the fair value option at December 31, 2017 and 2016 , respectively. Interest that would have been accrued on impaired loans totaled approximately $1 million , $2 million and $6 million during the years ended December 31, 2017 , 2016 and 2015 , respectively. At December 31, 2017 and 2016 , we had no loans 90 days or greater past due and still accruing interest. Troubled Debt Restructurings The following table provides a summary of TDRs by type and performing status: TDRs Performing Nonperforming Total (Dollars in millions) December 31, 2017 Consumer loans (1) Residential first mortgage $ 19 $ 12 $ 31 Home equity 24 4 28 Total TDRs (2) $ 43 $ 16 $ 59 December 31, 2016 Consumer loans (1) Residential first mortgage $ 22 $ 11 $ 33 Home equity 45 7 52 Total TDRs (2) $ 67 $ 18 $ 85 (1) The ALLL on consumer TDR loans totaled $13 million and $9 million at December 31, 2017 and 2016 , respectively. (2) Includes $3 million and $25 million of TDR loans accounted for under the fair value option at December 31, 2017 and 2016 , respectively. The following table provides a summary of newly modified TDRs: New TDRs Number of Accounts Pre-Modification Unpaid Principal Balance Post-Modification Unpaid Principal Balance (1) Increase (Decrease) in Allowance at Modification (Dollars in millions) Year Ended December 31, 2017 Residential first mortgages 16 $ 4 $ 4 $ — Home equity (2)(3) 82 6 5 (1 ) Total TDR loans 98 $ 10 $ 9 $ (1 ) Year Ended December 31, 2016 Residential first mortgages 23 $ 4 $ 5 $ — Home equity (2)(3) 143 9 8 — Commercial & Industrial 1 2 1 — Total TDR loans 167 $ 15 $ 14 $ — Year Ended December 31, 2015 Residential first mortgages 325 $ 81 $ 80 $ (2 ) Home equity (2)(3) 370 21 18 — Other consumer 3 — — — Total TDR loans 698 $ 102 $ 98 $ (2 ) (1) Post-modification balances include past due amounts that are capitalized at modification date. (2) Home equity post-modification UPB reflects write downs. (3) Includes loans carried at fair value option. The following table provides a summary of newly modified TDRs in the past 12 months that have been subsequently defaulted during the years ended December 31, 2017 , 2016 and 2015 . The UPB associated with the TDRs in each portfolio and in the aggregate was less than $1 million for all years presented. There was no increase or decrease in the allowance associated with these TDRs at subsequent default. All TDRs within consumer and commercial loan portfolios are considered subsequently defaulted when greater than 90 days past due. Subsequent default is defined as a payment re-defaulted within 12 months of the restructuring date: Years Ended December 31, 2017 2016 2015 Number of Accounts Residential first mortgages 1 1 3 Home equity (1) 0 7 5 Total TDR loans 1 8 8 (1) HELOC post-modification UPB reflects write downs. Impaired Loans The following table presents individually evaluated impaired loans and the associated allowance: December 31, 2017 December 31, 2016 Recorded Investment Net Unpaid Principal Balance Related Allowance Recorded Investment Net Unpaid Principal Balance Related Allowance (Dollars in millions) With no related allowance recorded Consumer loans Residential first mortgage $ 11 $ 12 $ — $ 6 $ 6 $ — Total loans with no related allowance recorded $ 11 $ 12 $ — $ 6 $ 6 $ — With an allowance recorded Consumer loans Residential first mortgage $ 22 $ 22 $ 6 $ 40 $ 40 $ 5 Home equity 24 27 10 29 29 8 Total loans with an allowance recorded $ 46 $ 49 $ 16 $ 69 $ 69 $ 13 Total impaired loans Consumer loans Residential first mortgage $ 33 $ 34 $ 6 $ 46 $ 46 $ 5 Home equity 24 27 10 29 29 8 Total impaired loans $ 57 $ 61 $ 16 $ 75 $ 75 $ 13 The following table presents average impaired loans and the interest income recognized: For the Years Ended December 31, 2017 2016 2015 Average Recorded Investment Interest Income Recognized Average Recorded Investment Interest Income Recognized Average Recorded Investment Interest Income Recognized (Dollars in millions) Consumer loans Residential first mortgage $ 38 $ 1 $ 52 $ 1 $ 150 $ 5 Home equity 28 1 30 2 39 — Commercial loans Commercial and industrial — — 2 — 2 — Total impaired loans $ 66 $ 2 $ 84 $ 3 $ 191 $ 5 Credit Quality We utilize an internal risk rating system which is applied to all consumer and commercial loans. Descriptions of our 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 that jeopardize the full collection or liquidation of the debt. They are characterized by the distinct possibility that we will sustain some loss if the deficiencies are not corrected. For home equity loans and other consumer loans, we evaluate credit quality based on the aging and status of payment activity and any other known credit characteristics that call into question full repayment of the asset. Nonperforming loans are classified as either substandard, doubtful or loss. Doubtful . An asset classified as doubtful has all the weaknesses inherent in one classified substandard, with the added characteristic that the weaknesses make collection or liquidation in full, on the basis of currently existing facts, conditions and values, highly questionable and improbable. A doubtful asset has a high probability of total or substantial loss, but because of specific pending events that may strengthen the asset, its classification as loss is deferred. Doubtful borrowers are usually in default, lack adequate liquidity or capital, and lack the resources necessary to remain an operating entity. Pending events can include mergers, acquisitions, liquidations, capital injections, the perfection of liens on additional collateral, the valuation of collateral, and refinancing. Generally, pending events should be resolved within a relatively short period and the ratings will be adjusted based on the new information. Due to the high probability of loss, doubtful assets are placed on non-accrual. Loss. An asset classified as loss is considered uncollectible and of such little value that the continuance as a 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 be affected in the future. Consumer Loans Consumer loans consist of open and closed end loans extended to individuals for household, family, and other personal expenditures, and includes consumer loans, and loans to individuals secured by their personal residence, including first mortgage, home equity, and home improvement loans. Because consumer loans are usually relatively small-balance, homogeneous exposures, consumer loans are rated primarily on payment performance. Payment performance is a proxy for the strength of repayment capacity and loans are generally classified based on their payment status rather than by an individual review of each loan. In accordance with regulatory guidance, we assign risk ratings to consumer loans in the following manner: • Consumer loans are classified as Watch once the loan becomes 60 days past due. • Open and closed-end consumer loans 90 days or more past due are classified Substandard. 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, 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 results in the final rating for the borrowing relationship. December 31, 2017 Pass Watch Special Mention Substandard Total Loans (Dollars in millions) Consumer Loans Residential First Mortgage $ 2,706 $ 23 $ — $ 25 $ 2,754 Home equity 633 25 — 6 664 Other Consumer 25 — — — 25 Total Consumer Loans $ 3,364 $ 48 $ — $ 31 $ 3,443 Commercial Loans Commercial Real Estate $ 1,902 $ 23 $ 7 $ — $ 1,932 Commercial and Industrial 1,135 32 24 5 1,196 Warehouse 1,014 128 — — 1,142 Total Commercial Loans $ 4,051 $ 183 $ 31 $ 5 $ 4,270 December 31, 2016 Pass Watch Special Mention Substandard Total Loans (Dollars in millions) Consumer Loans Residential First Mortgage $ 2,273 $ 23 $ — $ 31 $ 2,327 Home equity 386 46 — 11 443 Other Consumer 28 — — — 28 Total Consumer Loans $ 2,687 $ 69 $ — $ 42 $ 2,798 Commercial Loans Commercial Real Estate $ 1,225 $ 27 $ 3 $ 6 $ 1,261 Commercial and Industrial 678 59 21 11 769 Warehouse 1,168 16 53 — 1,237 Total Commercial Loans $ 3,071 $ 102 $ 77 $ 17 $ 3,267

Loans with Government Guarantee

Loans with Government Guarantees	12 Months Ended
	Dec. 31, 2017
Loans and Leases Receivable Disclosure [Abstract]
Loans with Government Guarantees	Loans with Government Guarantees Substantially all loans with government guarantees are insured or guaranteed by the FHA or U.S. Department of Veterans Affairs. FHA loans earn interest at a rate based upon the 10 -year U.S. Treasury note rate at the time the underlying loan becomes delinquent, which is not paid by the FHA or the U.S. Department of Veterans Affairs until claimed. Certain loans within our portfolio may be subject to indemnifications and insurance limits which exposes us to limited credit risk. We have reserved for these risks within other assets and as a component of our ALLL on residential first mortgages. At December 31, 2017 and December 31, 2016 , respectively, loans with government guarantees totaled $271 million and $365 million . At December 31, 2017 , repossessed assets and the associated claims recorded in other assets totaled $84 million and at December 31, 2016 repossessed assets and the associated claims were $135 million .

Repossessed Assets

Repossessed Assets	12 Months Ended
	Dec. 31, 2017
Repossessed Assets [Abstract]
Repossessed Assets	Repossessed Assets Repossessed assets include the following: December 31, 2017 2016 (Dollars in millions) One-to-four family properties $ 5 $ 11 Commercial properties 3 3 Total repossessed assets $ 8 $ 14 The following schedule provides the activity for repossessed assets: For the Years Ended December 31, 2017 2016 2015 (Dollars in millions) Beginning balance $ 14 $ 17 $ 19 Additions, net 18 19 29 Disposals (14 ) (19 ) (24 ) Net (write down) gain on disposal (9 ) (2 ) — Transfers out (1 ) (1 ) (7 ) Ending balance $ 8 $ 14 $ 17

Variable Interest Entities

Variable Interest Entities	12 Months Ended
	Dec. 31, 2017
Disclosure of Transfer of Securitizations or Asset-backed Financing Financial Assets Accounted for as Sale [Abstract]
Variable Interest Entities	Variable Interest Entities We have no consolidated VIEs as of December 31, 2017 and December 31, 2016 . We have a continuing involvement, but are not the primary beneficiary for one unconsolidated VIE related to the FSTAR 2007-1 mortgage securitization trust. In accordance with the settlement agreement with MBIA, there is no further recourse to us related to FSTAR 2007-1, unless MBIA fails to meet their obligations. At December 31, 2017 and 2016 , the FSTAR 2007-1 mortgage securitization trust included 1,911 loans and 2,453 loans, respectively, with an aggregate principal balance of $65 million and $89 million , respectively. We have no other significant VIE involvement.

Federal Home Loan Bank Stock

Federal Home Loan Bank Stock	12 Months Ended
	Dec. 31, 2017
Federal Home Loan Bank Stock [Abstract]
Federal Home Loan Bank Stock	Federal Home Loan Bank Stock Our investment in FHLB stock was $303 million at December 31, 2017 compared to $180 million at December 31, 2016 . As a member of the FHLB, we are required to hold shares of FHLB stock in an amount equal to at least one percent of the aggregate UPB of our mortgage loans, home purchase contracts and similar obligations at the beginning of each year or 4.5 percent of our total FHLB advances, whichever is greater. Once purchased, FHLB shares must be held for five years before they can be redeemed. We had $123 million , $10 million and $57 million in required stock purchases during the year ending December 31, 2017 , 2016 and 2015 , respectively. We had no redemptions of FHLB stock during the years ended December 31, 2017 , and 2016 and $42 million during the year ended December 31, 2015 . Dividends received on the stock equaled $9 million , $7 million and $6 million for the years ended December 31, 2017 , 2016 and 2015 , respectively. These dividends were recorded in the Consolidated Statements of Operations as other noninterest income.

Premises and Equipment

Premises and Equipment	12 Months Ended
	Dec. 31, 2017
Property, Plant and Equipment [Abstract]
Premises and Equipment	Premises and Equipment The following presents our premises and equipment balances and estimated useful lives: Estimated December 31, 2017 2016 (Dollars in millions) Land — $ 61 $ 59 Office buildings and improvements 15 — 31.5 years 159 153 Computer hardware and software 3 — 7 years 300 256 Furniture, fixtures and equipment 5 — 7 years 63 61 Leased equipment 3 — 10 years 40 4 Total 623 533 Less accumulated depreciation (293 ) (258 ) Premises and equipment, net $ 330 $ 275 Depreciation expense amounted to approximately $39 million , $31 million and $26 million , for the years ended December 31, 2017 , 2016 and 2015 , respectively. Operating Leases We conduct a portion of our business from leased facilities. Such leases are considered to be operating leases based on their terms. Lease rental expense totaled approximately $9 million , $5 million and $7 million for the years ended December 31, 2017 , 2016 and 2015 , respectively. The following outlines our minimum contractual lease obligations: December 31, 2017 (Dollars in millions) 2018 $ 8 2019 7 2020 5 2021 3 2022 1 Thereafter 2 Total $ 26

Mortgage Servicing Rights

Mortgage Servicing Rights	12 Months Ended
	Dec. 31, 2017
Transfers and Servicing [Abstract]
Mortgage Servicing Rights	Mortgage Servicing Rights We have investments in MSRs that result from the sale of loans to the secondary market for which we retain the servicing. We account for MSRs at their fair value. A primary risk associated with MSRs is the potential reduction in fair value as a result of higher than anticipated prepayments due to loan refinancing prompted, in part, by declining interest rates or government intervention. Conversely, these assets generally increase in value in a rising interest rate environment to the extent that prepayments are slower than anticipated. We utilize derivatives 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. There is also a risk of valuation decline due to higher than expected increases in default rates, which we do not believe can be effectively managed using derivatives. For further information regarding the derivative instruments utilized to manage our MSR risks, see Note 11 - Derivative Financial Instruments. Changes in the fair value of residential first mortgage MSRs were as follows: For the Years Ended December 31, 2017 2016 2015 (Dollars in millions) Balance at beginning of period $ 335 $ 296 $ 258 Additions from loans sold with servicing retained 288 228 260 Reductions from sales (310 ) (84 ) (176 ) Changes in fair value due to (1) : Decrease in MSR value due to pay-offs, pay-downs, and run-off (22 ) (62 ) (43 ) Changes in estimates of fair value (2) — (43 ) (3 ) Fair value of MSRs at end of period $ 291 $ 335 $ 296 (1) Changes in fair value are included within net (loss) return on mortgage servicing rights on the Consolidated Statements of Operations. (2) Represents estimated MSR value change resulting primarily from market-driven changes. The following table summarizes the hypothetical effect on the fair value of servicing rights using adverse changes of 10 percent and 20 percent to the weighted-average of certain significant assumptions used in valuing these assets: December 31, 2017 December 31, 2016 Fair value impact due to Fair value impact due to Actual 10% adverse change 20% adverse change Actual 10% adverse change 20% adverse change (Dollars in millions) Option adjusted spread 6.29 % $ 286 $ 282 7.78 % $ 326 $ 318 Constant prepayment rate 9.93 % 283 277 16.68 % 322 311 Weighted average cost to service per loan $ 73.00 288 286 $ 68.18 330 326 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 constant. In practice, a change in one assumption generally impacts other assumptions, which may either magnify or counteract the effect of the change. For further information, see Note 1 - Description of Business, Basis of Presentation, and Summary of Significant Accounting Standards and Note 22 - Fair Value Measurements. Contractual servicing and subservicing fees . Contractual servicing and subservicing fees, including late fees and other ancillary income are presented below. Contractual servicing fees are included within net (loss) return on mortgage servicing rights 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 contractual servicing rights: For the Years Ended December 31, 2017 2016 2015 (Dollars in millions) Net return (loss) on mortgage servicing rights Servicing fees, ancillary income and late fees (1) $ 60 $ 81 $ 69 Changes in fair value (2) (22 ) (109 ) (44 ) Gain (loss) on MSR derivatives (3) (8 ) — 5 Net transaction costs (8 ) 2 (2 ) Total (loss) return included in net return on mortgage servicing rights $ 22 $ (26 ) $ 28 (1) Servicing fees are recorded on the accrual basis. Ancillary income and late fees are recorded on a cash basis. (2) Includes a $4 million loss recorded to a payoff reserve during the year ended December 31, 2016 and $2 million gain related to the sale of MSRs during the year ended December 31, 2015 . (3) Changes in the derivatives utilized as economic hedges to offset changes in fair value of the MSRs. The following table summarizes income and fees associated with our mortgage loans subserviced: For the Year Ended December 31, 2017 2016 2015 (Dollars in millions) Loan administration income on mortgage loans subserviced Servicing fees, ancillary income and late fees (1) $ 35 $ 29 $ 33 Other servicing charges (14 ) (11 ) (7 ) Total income on mortgage loans subserviced, included in loan administration $ 21 $ 18 $ 26 (1) Servicing fees are recorded on the accrual basis. Ancillary income and late fees are recorded on cash basis.

Derivative Financial Instrument

Derivative Financial Instruments	12 Months Ended
	Dec. 31, 2017
Derivative Instruments and Hedging Activities Disclosure [Abstract]
Derivative Financial Instruments	Derivative Financial Instruments Derivative financial instruments are recorded at fair value in other assets and other liabilities on the Consolidated Statements of Financial Condition. The Company's policy is to present its derivative assets and derivative liabilities on the Consolidated Statement of Financial Condition on a gross basis, even when provisions allowing for set-off are in place. However, for derivative contracts cleared through certain central clearing parties, variation margin payments are recognized as settlements. We are exposed to non-performance risk by the counterparties to our various derivative financial instruments. A majority of our derivatives are centrally cleared through a Central Counterparty Clearing House or consist of residential mortgage interest rate lock commitments further limiting our exposure to non-performance risk. We believe that the non-performance risk inherent in our remaining derivative contracts is minimal based on credit standards and the collateral provisions of the derivative agreements. Derivatives not designated as hedging instruments: We maintain a derivative portfolio of interest rate swaps, futures and forward commitments used to manage exposure to changes in interest rates, MSR asset values and to meet the needs of customers. We also enter into interest rate lock commitments, which are commitments to originate mortgage loans whereby the interest rate on the loan is determined prior to funding and the customers have locked into that interest rate. Market risk on interest rate lock commitments and mortgage LHFS is managed using corresponding forward sale commitments. Changes in fair value of derivatives not designated as hedging instruments are recognized in the Consolidated Statements of Income. Derivatives designated as hedging instruments: We have designated certain interest rate swaps as cash flow hedges of certain interest rate payments of our variable-rate FHLB advances. Changes in the fair value of derivatives designated as cash flow hedges are recorded in other comprehensive income (loss) on the Consolidated Statement of Financial Condition and reclassified into interest expense in the same period in which the hedge transaction is recognized in earnings. At December 31, 2017 , we had $2 million (net-of-tax) of unrealized gains on derivatives classified as cash flow hedges recorded in accumulated other comprehensive income (loss), compared to $1 million of unrealized gains at December 31, 2016 . The estimated amount to be reclassified from other comprehensive income into earnings during the next 12 months represents $2 million of losses (net-of-tax). Derivatives that are designated in hedging relationships are assessed for effectiveness using regression analysis at inception and throughout the hedge period. All hedge relationships were and are expected to be highly effective as of December 31, 2017 . Cash flows and the profit impact associated with designated hedges are reported in the same category as the underlying hedged item. The following table presents the notional amount, estimated fair value and maturity of our derivative financial instruments: December 31, 2017 (1) Notional Amount Fair Value (2) Expiration Dates (Dollars in millions) Derivatives designated as hedging instruments: Liabilities Interest rate swaps on FHLB advances $ 830 $ 1 2023-2026 Derivatives not designated as hedging instruments: Assets Futures $ 1,597 $ — 2018-2022 Mortgage-backed securities forwards 2,646 4 2018 Rate lock commitments 3,629 24 2018 Interest rate swaps and swaptions 1,441 11 2018-2048 Total derivative assets $ 9,313 $ 39 Liabilities Futures $ 209 $ — 2018-2021 Mortgage-backed securities forwards 3,197 6 2018 Rate lock commitments 214 — 2018 Interest rate swaps 617 4 2018-2027 Total derivative liabilities $ 4,237 $ 10 December 31, 2016 Notional Amount Fair Value (2) Expiration Dates (Dollars in millions) Derivatives designated as hedging instruments: Assets Interest rate swaps on FHLB advances $ 600 $ 20 2023-2026 Liabilities Interest rate swaps on FHLB advances $ 230 $ 1 2025-2026 Derivatives not designated as hedging instruments: Assets Futures $ 4,621 $ 2 2017-2020 Mortgage-backed securities forwards 3,776 43 2017 Rate lock commitments 3,517 24 2017 Interest rate swaps and swaptions 2,231 35 2017-2033 Total derivative assets $ 14,145 $ 104 Liabilities Futures $ 134 $ — 2017 Mortgage-backed securities forwards 1,893 11 2017 Rate lock commitments 598 6 2017 Interest rate swaps 1,129 37 2017-2047 Total derivative liabilities $ 3,754 $ 54 (1) At December 31, 2017 , variation margin pledged to or received from a Central Counterparty Clearing House to cover the prior day’s fair value of open positions is considered settlement of the derivative position for accounting purposes. At December 31, 2016 , variation margin was not recognized as settlement. (2) Derivative assets and liabilities are included in other assets and other liabilities on the Consolidated Statements of Financial Condition, respectively. The following tables present the derivatives subject to a master netting arrangement, including the cash pledged as collateral: Gross Amounts Netted in the Statement of Financial Position Net Amount Presented in the Statement of Financial Position Gross Amounts Not Offset in the Statement of Financial Position Gross Amount Financial Instruments Cash Collateral (Dollars in millions) December 31, 2017 Derivatives designated as hedging instruments: Liabilities Interest rate swaps on FHLB advances (1) $ 1 $ — $ 1 $ — $ 17 Derivatives not designated as hedging instruments: Assets Mortgage-backed securities forwards $ 4 $ — $ 4 $ — $ 8 Interest rate swaps and swaptions (1) 11 — 11 — 10 Total derivative assets $ 15 $ — $ 15 $ — $ 18 Liabilities Futures $ — $ — $ — $ — $ 2 Mortgage-backed securities forwards 6 — 6 — 2 Interest rate swaps (1) 4 — 4 — 5 Total derivative liabilities $ 10 $ — $ 10 $ — $ 9 December 31, 2016 Derivatives designated as hedging instruments: Assets Interest rate swaps on FHLB advances (1) $ 20 $ 1 $ 19 $ — $ — Liabilities Interest rate swaps on FHLB advances (1) $ 1 $ 1 $ — $ — $ 33 Derivatives not designated as hedging instruments: Assets Futures $ 2 $ — $ 2 $ — $ — Mortgage-backed securities forwards 43 — 43 — 44 Interest rate swaps and swaptions (1) 35 — 35 — 30 Total derivative assets $ 80 $ — $ 80 $ — $ 74 Liabilities Futures $ — $ — $ — $ — $ 1 Mortgage-backed securities forwards 11 — 11 — — Interest rate swaps (1) 37 — 37 — 20 Total derivative liabilities $ 48 $ — $ 48 $ — $ 21 (1) At December 31, 2017 , variation margin pledged to or received from a Central Counterparty Clearing House to cover the prior day’s fair value of open positions is considered settlement of the derivative position for accounting purposes. At December 31, 2016 , variation margin was not recognized as settlement and we had an additional $15 million in variation margin in excess of the amounts disclosed above. At December 31, 2017 , we pledged a total of $26 million related to derivative financial instruments, consisting of $7 million of cash collateral on derivative liabilities and $19 million of maintenance margin on centrally clear derivatives and had an obligation to return cash of $18 million on derivative assets. We pledged a total of $54 million of cash collateral to counterparties and had an obligation to return cash of $74 million at December 31, 2016 for derivative activities. The net cash pledged is restricted and is included in other assets on the Consolidated Statements of Financial Condition. The following table presents the net gain (loss) recognized in income on derivative instruments, net of the impact of offsetting positions: For the Years Ended December 31, 2017 2016 2015 (Dollars in millions) Derivatives not designated as hedging instruments: Location of Gain/(Loss) Futures Net return (loss) on mortgage servicing rights $ (1 ) $ — $ 6 Interest rate swaps and swaptions Net return (loss) on mortgage servicing rights (11 ) (5 ) (2 ) Mortgage-backed securities forwards Net return (loss) on mortgage servicing rights 4 5 1 Rate lock commitments and forward agency and loan sales Net gain (loss) on loan sales (34 ) 26 9 Forward commitments Other noninterest income — (2 ) (2 ) Interest rate swaps (1) Other noninterest income 2 4 2 Total derivative (loss) gain $ (40 ) $ 28 $ 14 (1) Includes customer-initiated commercial interest rate swaps.

Deposit Accounts

Deposit Accounts	12 Months Ended
	Dec. 31, 2017
Deposits [Abstract]
Deposit Accounts	Deposit Accounts The deposit accounts are as follows: December 31, 2017 2016 (Dollars in millions) Retail deposits Branch retail deposits Demand deposit accounts $ 931 $ 852 Savings accounts 3,482 3,824 Money market demand accounts 124 138 Certificates of deposit/CDARS 1,491 1,055 Total branch retail deposits 6,028 5,869 Commercial deposits Demand deposit account 288 282 Savings account 71 63 Money market demand accounts 69 109 Certificates of deposit/CDARS 2 1 Total commercial deposits 430 455 Total retail deposits subtotal 6,458 6,324 Government deposits Demand deposit accounts 251 250 Savings accounts 446 451 Certificates of deposit/CDARS 376 329 Total government deposits 1,073 1,030 Wholesale deposits 45 — Company controlled deposits 1,358 1,446 Total deposits $ 8,934 $ 8,800 The following indicates the scheduled maturities for certificates of deposit with a minimum denomination of $250,000 : December 31, 2017 2016 (Dollars in millions) Three months or less $ 159 $ 126 Over three months to six months 128 116 Over six months to twelve months 173 146 One to two years 167 34 Thereafter 31 27 Total $ 658 $ 449

Borrowings

Borrowings	12 Months Ended
	Dec. 31, 2017
Debt Disclosure [Abstract]
Borrowings	Borrowings Federal Home Loan Bank Advances The following is a breakdown of our FHLB advances outstanding: December 31, 2017 December 31, 2016 Amount Rate Amount Rate (Dollars in millions) Short-term fixed rate term advances $ 4,260 1.40 % $ 1,780 0.62 % Total Short-term Federal Home Loan Bank advances 4,260 1,780 Long-term LIBOR adjustable advances 1,130 1.76 % 1,025 1.12 % Long-term fixed rate advances (1) 275 1.41 % 175 1.12 % Total Long-term Federal Home Loan Bank advances 1,405 1,200 Total Federal Home Loan Bank advances $ 5,665 $ 2,980 (1) Includes the current portion of fixed rate advances of $125 million and $50 million at December 31, 2017 and December 31, 2016 , respectively. We settled $250 million in long-term fixed rate FHLB advances during the fourth quarter of 2016 . We are required to maintain a minimum amount of qualifying collateral. In the event of default, the FHLB advance is similar to a secured borrowing, whereby the FHLB has the right to sell the pledged collateral to settle the fair value of the outstanding advances. At December 31, 2017 , we had the authority and approval from the FHLB to utilize a line of credit of up to $7.0 billion and we may access that line to the extent that collateral is provided. At December 31, 2017 , we had $5.7 billion of advances outstanding and an additional $763 million of collateralized borrowing capacity available at FHLB. The advances can be collateralized by non-delinquent single-family residential first mortgage loans, loans with government guarantees, certain other loans and investment securities. At December 31, 2017 , $1.1 billion of the outstanding advances had an adjustable rate based on the three month LIBOR index. Interest rates on these advances reset every three months and the advances may be prepaid without penalty, with notification at scheduled three month intervals after an initial 12 month lockout period. The outstanding advances included $830 million in a cash flow hedge relationship as discussed in Note 11 - Derivative Financial Instruments. The following table contains detailed information on our FHLB advances and other borrowings: For the Years Ended December 31, 2017 2016 2015 (Dollars in millions) Maximum outstanding at any month end $ 5,665 $ 3,557 $ 3,541 Average outstanding balance 4,590 2,833 1,811 Average remaining borrowing capacity 1,195 1,137 1,611 Weighted average interest rate 1.30 % 1.16 % 1.00 % The following table outlines the maturity dates of our FHLB advances and other borrowings: December 31, 2017 (Dollars in millions) 2018 $ 4,385 2019 50 2020 — 2021 — Thereafter 1,230 Total $ 5,665 Parent Company Senior Notes and Trust Preferred Securities The following table presents long-term debt, net of debt issuance costs: December 31, 2017 December 31, 2016 Amount Interest Rate Amount Interest Rate (Dollars in millions) Senior Notes Senior notes, matures 2021 $ 247 6.125 % $ 246 6.125 % Trust Preferred Securities Floating Three Month LIBOR Plus 3.25%, matures 2032 $ 26 4.92 % $ 26 4.25 % Plus 3.25%, matures 2033 26 4.61 % 26 4.13 % Plus 3.25%, matures 2033 26 4.94 % 26 4.25 % Plus 2.00%, matures 2035 26 3.36 % 26 2.88 % Plus 2.00%, matures 2035 26 3.36 % 26 2.88 % Plus 1.75%, matures 2035 51 3.34 % 51 2.71 % Plus 1.50%, matures 2035 25 2.86 % 25 2.38 % Plus 1.45%, matures 2037 25 3.04 % 25 2.41 % Plus 2.50%, matures 2037 16 4.09 % 16 3.46 % Total Trust Preferred Securities 247 247 Total long-term debt $ 494 $ 493 Senior Notes On July 11, 2016, we issued $250 million of senior notes ("Senior Notes") which mature on July 15, 2021. The notes are unsecured and rank equally and ratably with the unsecured senior indebtedness of Flagstar Bancorp, Inc. Prior to June 15, 2021, we may redeem some or all of the Senior Notes at a redemption price equal to the greater of 100 percent of the aggregate principal amount of the notes to be redeemed or the sum of the present values of the remaining scheduled payments discounted to the redemption date on a semi-annual basis using a discount rate equal to the Treasury Rate plus 0.50 percent , plus, in each case accrued and unpaid interest. Trust Preferred Securities We sponsor nine trust subsidiaries, which issued preferred stock to third party investors. We issued trust preferred securities to those trusts, which we have included in long-term debt. The trust preferred securities are the sole assets of those trusts. The trust preferred securities are callable by us at any time. Interest is payable quarterly; however, we may defer interest payments for up to 20 quarters without default or penalty. As of December 31, 2017 , we had no deferred interest.

Representation and Warranty Res

Representation and Warranty Reserve	12 Months Ended
	Dec. 31, 2017
Representation and Warranty Reserve Disclosures [Abstract]
Representation and Warranty Reserve	Representation and Warranty Reserve At the time a loan is sold, an estimate of the fair value of the guarantee associated with the mortgage loans is recorded in the representation and warranty reserve in the Consolidated Statements of Financial Condition. This reduces the net gain on loan sales in the Consolidated Statements of Operations. The following table shows the activity impacting the representation and warranty reserve: For the Years Ended December 31, 2017 2016 2015 (Dollars in millions) Balance, beginning of period $ 27 $ 40 $ 53 Provision (benefit) Gain on sale reduction for representation and warranty liability 4 5 7 Representation and warranty provision (benefit) (13 ) (19 ) (19 ) Total (9 ) (14 ) (12 ) (Charge-offs) recoveries, net (3 ) 1 (1 ) Balance, end of period $ 15 $ 27 $ 40

Warrants

Warrants	12 Months Ended
	Dec. 31, 2017
Warrants and Rights Note Disclosure [Abstract]
Warrants	Warrants May Investor Warrant We granted warrants (the "May Investor Warrants") on January 30, 2009 under anti-dilution provisions applicable to certain investors (the "May Investors") in our May 2008 private placement capital raise. During the year ended December 31, 2017 , a total of 237,627 May Investor Warrants were exercised, resulting in the net issuance of 154,313 shares of Common Stock. As of December 31, 2017 , there are no remaining May Investor Warrants outstanding and the related liability is reduced to zero . At December 31, 2016 , the liability was $4 million . For further information, see Note 22 - Fair Value Measurements. TARP Warrant On January 30, 2009, in conjunction with the sale of 266,657 shares of TARP Preferred, we issued a warrant to purchase up to approximately 645,138 shares of Common Stock at an exercise price of $62.00 per share (the "Warrant"). The Warrant is exercisable through January 30, 2019 and remains outstanding. Stock-Based Compensation Our board of directors participates in various stock option plans and incentive compensation plans. Certain key employees, officers, directors and others are eligible to receive stock awards. Awards that may be granted under the plan include stock options, incentive stock options, cash-settled stock appreciation rights, restricted stock units, performance shares and performance units and other awards. Under the current plan, the exercise price of any award granted must be at least equal to the fair market value of common stock on the date of grant. Non-qualified stock options granted to directors expire 5 years from the date of grant. Grants other than non-qualified stock options have term limits set by the board of directors in the applicable agreement. Stock appreciation rights generally expire 7 years from the date of grant. Awards still outstanding under any of the prior plans will continue to be governed by their respective terms. During the years ended December 31, 2017 , 2016 and 2015 , compensation expense recognized related to stock-based compensation totaled $11 million , $11 million and $3 million , respectively. Stock Options The following tables summarize the activity that occurred in the years ended December 31: Number of Shares 2017 (1) 2016 2015 Options outstanding, beginning of year 45,791 53,284 63,598 Options canceled, forfeited and expired (5,073 ) (7,493 ) (10,314 ) Options outstanding, end of year 40,718 45,791 53,284 Options vested or expected to vest, end of year 40,718 45,791 53,284 Options exercisable, end of year 20,286 23,576 27,197 Weighted Average Exercise Price 2017 (1) 2016 2015 Options outstanding, beginning of year $ 80.00 $ 80.00 $ 94.33 Options canceled, forfeited and expired 80.00 80.00 168.34 Options outstanding, end of year $ 80.00 $ 80.00 $ 80.00 Options vested or expected to vest, end of year $ 80.00 $ 80.00 $ 80.00 Options exercisable, end of year $ 80.00 $ 80.00 $ 80.00 (1) All outstanding options at December 31, 2017 are vested or expected to vest and have a weighted average remaining contractual life of 2.1 years. The total intrinsic value of options exercised during the years ended December 31, 2017 , 2016 and 2015 , was zero . Additionally, there was no aggregate intrinsic value of options outstanding and exercised at December 31, 2017 , 2016 and 2015 . Restricted Stock and Restricted Stock Units We have issued restricted stock units to officers, directors and certain employees. Restricted stock units generally will vest in 3 increments on each annual anniversary of the date of grant beginning with the first anniversary subject to service and performance conditions. On October 20, 2015, our Board approved and adopted the Flagstar Bancorp, Inc. Executive Long-Term Incentive Program ("ExLTIP"). The ExLTIP provides for payouts to certain executives only if our stock achieves and sustains a specified market performance within ten years of the grant date. The ExLTIP awards were made in the form of restricted stock units under and subject to the terms of the 2016 Flagstar Bancorp, Inc. Stock and Incentive Plan, which was approved at the May 24, 2016 annual shareholder meeting. If vested, the restricted stock units would pay out in five installments, subject to a quality review. At December 31, 2017 , the maximum number of shares of common stock that may be issued were 2,132,452 shares. The total fair value of awards vested during the years ended December 31, 2017 , 2016 , 2015 was $7 million , $3 million , and $2 million , respectively. As of December 31, 2017 , the total unrecognized compensation cost related to non-vested awards was $12 million with a weighted average expense recognition period of 2.5 years . The following table summarizes restricted stock activity: For the Years Ended December 31, 2017 2016 2015 Shares Weighted — Average Grant-Date Fair Value per Share Shares Weighted — Average Grant-Date Fair Value per Share Shares Weighted — Average Grant-Date Fair Value per Share Restricted Stock and Restricted Stock Units Non-vested balance at beginning of period 1,461,910 $ 17.68 1,299,985 $ 16.36 233,691 $ 17.21 Granted 357,058 28.06 310,209 22.97 1,325,134 16.11 Vested (385,454 ) 17.36 (134,767 ) 15.78 (152,220 ) 15.25 Canceled and forfeited (143,064 ) 18.89 (13,517 ) 17.24 (106,620 ) 18.46 Non-vested balance at end of period 1,290,450 $ 20.52 1,461,910 $ 17.68 1,299,985 $ 16.36 2017 Employee Stock Purchase Plan The Employee Stock Purchase Plan ("2017 ESPP") was approved on March 20, 2017 by our Board of Directors ("the Board") and on May 23, 2017 by our shareholders. The 2017 ESPP became effective July 1, 2017 and will remain effective until terminated by the Board. A total of 800,000 shares of the Company’s common stock are reserved and authorized for issuance for purchase under the 2017 ESPP. During the year ended December 31, 2017 , 48,032 shares were issued under the 2017 ESPP and our associated compensation expense was de minimis. Incentive Compensation Plans We had an expense of $33 million , $33 million and $30 million for the years ended December 31, 2017 , 2016 and 2015 , respectively, for annual employee incentive payments and commission based payments.

Accumulated Other Comprehensive

Accumulated Other Comprehensive Income (Loss)	12 Months Ended
	Dec. 31, 2017
Equity [Abstract]
Accumulated Other Comprehensive Income (Loss)	Accumulated Other Comprehensive Income (Loss) The following table sets forth the components in accumulated other comprehensive income (loss): For the Years Ended December 31, 2017 2016 2015 (Dollars in millions) Investment Securities Beginning balance $ (8 ) $ 5 $ 8 Unrealized gain (loss) (19 ) (10 ) (7 ) Less: Tax (benefit) provision (7 ) (3 ) (2 ) Net unrealized gain (loss) (12 ) (7 ) (5 ) Reclassifications out of AOCI (1) 3 (9 ) 3 Less: Tax (benefit) provision 1 (3 ) 1 Net unrealized gain (loss) reclassified out of AOCI 2 (6 ) 2 Other comprehensive income/(loss), net of tax (10 ) (13 ) (3 ) Ending balance $ (18 ) $ (8 ) $ 5 Cash Flow Hedges Beginning balance $ 1 $ (3 ) $ — Unrealized gain (loss) 5 (13 ) (6 ) Less: Tax (benefit) provision 1 (5 ) (1 ) Net unrealized gain (loss) 4 (8 ) (5 ) Reclassifications out of AOCI (1) (5 ) 19 2 Less: Tax (benefit) provision (2 ) 7 — Net unrealized gain (loss) reclassified out of AOCI (3 ) 12 2 Other comprehensive income/(loss), net of tax 1 4 (3 ) Ending balance $ 2 $ 1 $ (3 ) (1) Reclassifications are reported in other noninterest income on the Consolidated Statement of Operations.

Earnings Per Share

Earnings Per Share	12 Months Ended
	Dec. 31, 2017
Earnings Per Share [Abstract]
Earnings Per Share	Earnings Per Share Basic earnings per share, excluding dilution, is computed by dividing earnings available to common stockholders by the weighted average number of shares of common stock outstanding during the period. Diluted earnings per share reflects 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 our earnings. The following table sets forth the computation of basic and diluted earnings per share of common stock: For the Years Ended December 31, 2017 2016 2015 (In millions, except share data) Net income $ 63 $ 171 $ 158 Deferred cumulative preferred stock dividends — (18 ) (30 ) Net income applicable to common stockholders $ 63 $ 153 $ 128 Weighted Average Shares Weighted average common shares outstanding 57,093,868 56,569,307 56,426,977 Effect of dilutive securities May Investor Warrants 12,287 138,314 305,484 Stock-based awards 1,072,188 890,046 432,062 Weighted average diluted common shares 58,178,343 57,597,667 57,164,523 Earnings per common share Basic earnings per common share $ 1.11 $ 2.71 $ 2.27 Effect of dilutive securities May Investor Warrants — (0.01 ) (0.01 ) Stock-based awards (0.02 ) (0.04 ) (0.02 ) Diluted earnings per common share $ 1.09 $ 2.66 $ 2.24 Under the terms of the TARP Preferred, the Company elected to defer payments of preferred stock dividends beginning with the February 2012 dividend. Although, while being deferred, the impact was not included in quarterly net income from continuing operations, the deferral did impact net income applicable to common stock for the purpose of calculating earnings per share, as shown above. On July 29, 2016, we completed the $267 million redemption of TARP Preferred.

Stock-Based Compensation

Stock-Based Compensation	12 Months Ended
	Dec. 31, 2017
Disclosure of Compensation Related Costs, Share-based Payments [Abstract]
Stock-Based Compensation	Warrants May Investor Warrant We granted warrants (the "May Investor Warrants") on January 30, 2009 under anti-dilution provisions applicable to certain investors (the "May Investors") in our May 2008 private placement capital raise. During the year ended December 31, 2017 , a total of 237,627 May Investor Warrants were exercised, resulting in the net issuance of 154,313 shares of Common Stock. As of December 31, 2017 , there are no remaining May Investor Warrants outstanding and the related liability is reduced to zero . At December 31, 2016 , the liability was $4 million . For further information, see Note 22 - Fair Value Measurements. TARP Warrant On January 30, 2009, in conjunction with the sale of 266,657 shares of TARP Preferred, we issued a warrant to purchase up to approximately 645,138 shares of Common Stock at an exercise price of $62.00 per share (the "Warrant"). The Warrant is exercisable through January 30, 2019 and remains outstanding. Stock-Based Compensation Our board of directors participates in various stock option plans and incentive compensation plans. Certain key employees, officers, directors and others are eligible to receive stock awards. Awards that may be granted under the plan include stock options, incentive stock options, cash-settled stock appreciation rights, restricted stock units, performance shares and performance units and other awards. Under the current plan, the exercise price of any award granted must be at least equal to the fair market value of common stock on the date of grant. Non-qualified stock options granted to directors expire 5 years from the date of grant. Grants other than non-qualified stock options have term limits set by the board of directors in the applicable agreement. Stock appreciation rights generally expire 7 years from the date of grant. Awards still outstanding under any of the prior plans will continue to be governed by their respective terms. During the years ended December 31, 2017 , 2016 and 2015 , compensation expense recognized related to stock-based compensation totaled $11 million , $11 million and $3 million , respectively. Stock Options The following tables summarize the activity that occurred in the years ended December 31: Number of Shares 2017 (1) 2016 2015 Options outstanding, beginning of year 45,791 53,284 63,598 Options canceled, forfeited and expired (5,073 ) (7,493 ) (10,314 ) Options outstanding, end of year 40,718 45,791 53,284 Options vested or expected to vest, end of year 40,718 45,791 53,284 Options exercisable, end of year 20,286 23,576 27,197 Weighted Average Exercise Price 2017 (1) 2016 2015 Options outstanding, beginning of year $ 80.00 $ 80.00 $ 94.33 Options canceled, forfeited and expired 80.00 80.00 168.34 Options outstanding, end of year $ 80.00 $ 80.00 $ 80.00 Options vested or expected to vest, end of year $ 80.00 $ 80.00 $ 80.00 Options exercisable, end of year $ 80.00 $ 80.00 $ 80.00 (1) All outstanding options at December 31, 2017 are vested or expected to vest and have a weighted average remaining contractual life of 2.1 years. The total intrinsic value of options exercised during the years ended December 31, 2017 , 2016 and 2015 , was zero . Additionally, there was no aggregate intrinsic value of options outstanding and exercised at December 31, 2017 , 2016 and 2015 . Restricted Stock and Restricted Stock Units We have issued restricted stock units to officers, directors and certain employees. Restricted stock units generally will vest in 3 increments on each annual anniversary of the date of grant beginning with the first anniversary subject to service and performance conditions. On October 20, 2015, our Board approved and adopted the Flagstar Bancorp, Inc. Executive Long-Term Incentive Program ("ExLTIP"). The ExLTIP provides for payouts to certain executives only if our stock achieves and sustains a specified market performance within ten years of the grant date. The ExLTIP awards were made in the form of restricted stock units under and subject to the terms of the 2016 Flagstar Bancorp, Inc. Stock and Incentive Plan, which was approved at the May 24, 2016 annual shareholder meeting. If vested, the restricted stock units would pay out in five installments, subject to a quality review. At December 31, 2017 , the maximum number of shares of common stock that may be issued were 2,132,452 shares. The total fair value of awards vested during the years ended December 31, 2017 , 2016 , 2015 was $7 million , $3 million , and $2 million , respectively. As of December 31, 2017 , the total unrecognized compensation cost related to non-vested awards was $12 million with a weighted average expense recognition period of 2.5 years . The following table summarizes restricted stock activity: For the Years Ended December 31, 2017 2016 2015 Shares Weighted — Average Grant-Date Fair Value per Share Shares Weighted — Average Grant-Date Fair Value per Share Shares Weighted — Average Grant-Date Fair Value per Share Restricted Stock and Restricted Stock Units Non-vested balance at beginning of period 1,461,910 $ 17.68 1,299,985 $ 16.36 233,691 $ 17.21 Granted 357,058 28.06 310,209 22.97 1,325,134 16.11 Vested (385,454 ) 17.36 (134,767 ) 15.78 (152,220 ) 15.25 Canceled and forfeited (143,064 ) 18.89 (13,517 ) 17.24 (106,620 ) 18.46 Non-vested balance at end of period 1,290,450 $ 20.52 1,461,910 $ 17.68 1,299,985 $ 16.36 2017 Employee Stock Purchase Plan The Employee Stock Purchase Plan ("2017 ESPP") was approved on March 20, 2017 by our Board of Directors ("the Board") and on May 23, 2017 by our shareholders. The 2017 ESPP became effective July 1, 2017 and will remain effective until terminated by the Board. A total of 800,000 shares of the Company’s common stock are reserved and authorized for issuance for purchase under the 2017 ESPP. During the year ended December 31, 2017 , 48,032 shares were issued under the 2017 ESPP and our associated compensation expense was de minimis. Incentive Compensation Plans We had an expense of $33 million , $33 million and $30 million for the years ended December 31, 2017 , 2016 and 2015 , respectively, for annual employee incentive payments and commission based payments.

Income Taxes

Income Taxes	12 Months Ended
	Dec. 31, 2017
Income Tax Disclosure [Abstract]
Income Taxes	Income Taxes Components of the provision (benefit) for income taxes consist of the following: For the Years Ended December 31, 2017 2016 2015 (Dollars in millions) Current Federal $ 2 $ 4 $ 2 Total current income tax expense 2 4 2 Deferred Federal 66 84 82 Federal impact of tax reform 80 — — State — (1 ) (2 ) Total deferred income tax expense 146 83 80 Total income tax expense $ 148 $ 87 $ 82 Our effective tax rate differs from the statutory federal tax rate. The following is a summary of such differences: For the Years Ended December 31, 2017 2016 2015 (Dollars in millions) Provision at statutory federal income tax rate (35%) $ 74 $ 90 $ 84 Increases (decreases) resulting from: Tax Reform 80 — — Bank Owned Life Insurance (3 ) (3 ) (1 ) Restricted stock compensation (2 ) — — State income tax (benefit), net of federal income tax effect (includes valuation allowance) — (1 ) (2 ) Warrant expense (income) — 1 1 Non-deductible compensation — — 1 Other (1 ) — (1 ) Provision for income taxes $ 148 $ 87 $ 82 Effective tax provision rate 70.1 % 33.7 % 34.2 % The increase in our income tax provision and effective tax provision rate during the year ended December 31, 2017 as compared to the year ended December 31, 2016 , was primarily due to the new tax legislation which resulted in a charge to the provision for income taxes of approximately $80 million due to the revaluation of our DTAs at a lower corporate statutory rate. Temporary differences and carry forwards that give rise to DTAs and liabilities are comprised of the following: December 31, 2017 2016 (Dollars in millions) Deferred tax assets Net operating loss carryforwards (Federal and State) $ 110 $ 195 Allowance for loan losses 43 74 Litigation settlement 14 22 Alternative Minimum Tax credit carry forwards — 18 Representation and warranty reserves 3 10 Accrued compensation 10 15 Contingent Consideration 6 — Loan deferred fees and costs 2 3 Non-accrual interest revenue 1 2 Deferred interest 1 2 General business credits 3 1 Other 2 5 Total 195 347 Valuation allowance (20 ) (20 ) Total (net) 175 327 Deferred tax liabilities Premises and equipment (14 ) (12 ) Mortgage loan servicing rights (3 ) (11 ) Mark-to-market adjustments (10 ) (9 ) Commercial lease financing (9 ) (5 ) State and local taxes (3 ) (4 ) Total (39 ) (41 ) Net deferred tax asset $ 136 $ 286 At December 31, 2017, we reclassified $20 million of AMT credits from deferred taxes to other assets as a result of tax reform. We have not provided deferred income taxes for the Bank’s pre-1988 tax bad debt reserve at December 31, 2017 of approximately $4 million because it is not anticipated that this temporary difference will reverse in the foreseeable future. Such reserves would only be taken into taxable income if the Bank, or a successor institution, liquidates, redeems shares, pays dividends in excess of earnings, or ceases to qualify as a bank for tax purposes. During the years ended December 31, 2017 and 2016 , we had federal net operating loss carry forwards of $381 million and $480 million , respectively. These carry forwards, if unused, expire in calendar years 2028 through 2037 . As a result of a change in control occurring on January 30, 2009, Section 382 of the Internal Revenue Code places an annual limitation on the use of our new operating loss carry forwards that existed at that time. At December 31, 2017 we had $120 million of net operating loss carry forwards subject to certain annual use limitations which expire in calendar years 2028 through 2029 . We regularly evaluate the need for DTA valuation allowances based on a more likely than not standard as defined by generally accepted accounting principles. The ability to realize DTAs depends on the ability to generate sufficient taxable income within the carryback or carryforward periods provided for in the tax law for each applicable tax jurisdiction. We had a total state DTA before valuation allowance of $33 million which includes total state net operating loss carryforwards of $579 million at December 31, 2017 . In connection with our ongoing assessment of deferred taxes, we analyzed each state net operating loss separately and determined the amount of such net operating loss, which is expected to expire unused, and recorded a valuation allowance to reduce the DTA for state net operating losses to the amount which is more likely than not to be realized. At December 31, 2017 , the net state DTAs which will more likely than not be realized, was $14 million and we have maintained a valuation allowance of $20 million due to state loss carryover limitations. We will continue to regularly assess the realizability of our DTAs. Changes in earnings performance and future earnings projections, among other factors, may cause us to adjust our valuation allowance. Our income tax returns are subject to review and examination by federal, state and local government authorities. On an ongoing basis, numerous federal, state and local examinations are in progress and cover multiple tax years. At December 31, 2017 , the Internal Revenue Service had completed an examination of us through the taxable year ended December 31, 2013 . The years open to examination by state and local government authorities vary by jurisdiction. We recognize interest and penalties related to uncertain tax positions in income tax expense. For the years ended December 31, 2017 , 2016 and 2015 , we did not recognize any interest income, interest expense, or increase or decreases to uncertain income tax positions of greater than $1 million , individually or in aggregate.

Regulatory Capital

Regulatory Capital	12 Months Ended
	Dec. 31, 2017
Banking and Thrift [Abstract]
Regulatory Capital	Regulatory Capital We, along with 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. 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. At the end of 2017 a final rule was issued that will maintain the transition provisions for certain items deducted from regulatory capital. For additional information, see Item 1. Business and Item 1A. Risk Factors. 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. We, along with the Bank, are considered "well-capitalized" at both December 31, 2017 and December 31, 2016 . The following tables present the regulatory capital ratios as of the dates indicated: Flagstar Bancorp Actual For Capital Adequacy Purposes Well Capitalized Under Prompt Corrective Action Provisions Amount Ratio Amount Ratio Amount Ratio (Dollars in millions) December 31, 2017 Tangible capital (to adjusted avg. total assets) $ 1,442 8.51 % N/A N/A N/A N/A Tier 1 capital (to adjusted avg. total assets) 1,442 8.51 % $ 678 4.0 % $ 848 5.0 % Common equity Tier 1 capital (to RWA) 1,216 11.50 % 476 4.5 % 688 6.5 % Tier 1 capital (to RWA) 1,442 13.63 % 635 6.0 % 846 8.0 % Total capital (to RWA) 1,576 14.90 % 846 8.0 % 1,058 10.0 % December 31, 2016 Tangible capital (to adjusted avg. total assets) $ 1,256 8.88 % N/A N/A N/A N/A Tier 1 capital (to adjusted avg. total assets) 1,256 8.88 % $ 566 4.0 % $ 707 5.0 % Common equity Tier 1 capital (to RWA) 1,084 13.06 % 374 4.5 % 540 6.5 % Tier 1 capital (to RWA) 1,256 15.12 % 498 6.0 % 664 8.0 % Total capital (to RWA) 1,363 16.41 % 664 8.0 % 830 10.0 % N/A - Not applicable. Flagstar Bank Actual For Capital Adequacy Purposes Well Capitalized Under Prompt Corrective Action Provisions Amount Ratio Amount Ratio Amount Ratio (Dollars in millions) December 31, 2017 Tangible capital (to adjusted avg. total assets) $ 1,531 9.04 % N/A N/A N/A N/A Tier 1 capital (to adjusted avg. total assets) 1,531 9.04 % $ 677 4.0 % $ 847 5.0 % Common equity Tier 1 capital (to RWA) 1,531 14.46 % 476 4.5 % 688 6.5 % Tier 1 capital (to RWA) 1,531 14.46 % 635 6.0 % 847 8.0 % Total capital (to RWA) 1,664 15.72 % 847 8.0 % 1,059 10.0 % December 31, 2016 Tangible capital (to adjusted avg. total assets) $ 1,491 10.52 % N/A N/A N/A N/A Tier 1 capital (to adjusted avg. total assets) 1,491 10.52 % $ 567 4.0 % $ 709 5.0 % Common equity Tier 1 capital (to RWA) 1,491 17.90 % 375 4.5 % 542 6.5 % Tier 1 capital (to RWA) 1,491 17.90 % 500 6.0 % 667 8.0 % Total capital (to RWA) 1,598 19.18 % 667 8.0 % 833 10.0 % N/A - Not applicable.

Legal Proceedings, Contingencie

Legal Proceedings, Contingencies and Commitments	12 Months Ended
	Dec. 31, 2017
Commitments and Contingencies Disclosure [Abstract]
Legal Proceedings, Contingencies and Commitments	Legal Proceedings, Contingencies and Commitments Legal Proceedings We and our subsidiaries are subject to various pending or threatened legal proceedings arising out of the normal course of business operations. 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. From time to time, governmental agencies also conduct investigations or examinations of various practices of the Bank. In the course of such investigations or examinations, the Bank cooperates with such agencies and provides information as requested. We assess the liabilities and loss contingencies in connection with pending or threatened legal and regulatory proceedings on at least a quarterly basis and establish accruals when we believe 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, as appropriate, in light of additional information. At December 31, 2017, we do 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 will be material to our financial statements, or that the ultimate outcome of these actions will have a material adverse effect on our financial condition, results of operations or cash flows. DOJ litigation settlement In 2012, the Bank entered into a Settlement Agreement with the DOJ which meets the definition of a financial liability (the "DOJ Liability"). In accordance with the Settlement Agreement, we made an initial payment of $15 million and agreed to make future annual payments totaling $118 million in annual increments of up to $25 million upon meeting all conditions, which are evaluated quarterly and include: (a) the reversal of the DTA valuation allowance, which occurred at the end of 2013; (b) the repayment of the Fixed Rate Cumulative Perpetual Preferred Stock, Series C (the "TARP Preferred"), which occurred in the third quarter of 2016; and (c) the Bank’s Tier 1 Leverage Capital Ratio equals 11 percent or greater as filed in the Call Report with the OCC. No payment would be required until six months after the Bank files its Call Report with the OCC first reporting that its Tier 1 Leverage Capital Ratio was 11 percent or greater. If all other conditions were then satisfied, an initial annual payment would be due at that time. The next annual payment is then only made if such other conditions continue to be satisfied, otherwise payments are delayed until all such conditions are met. Further, making such a payment must not violate any material banking regulatory requirement, and the OCC must not object in writing. Consistent with our business and regulatory requirements, Flagstar shall seek in good faith to fulfill the conditions, and will not undertake any conduct or fail to take any action the purpose of which is to frustrate or delay our ability to fulfill any of the above conditions. Additionally, if the Bank and Bancorp become party to a business combination in which the Bank or Bancorp represent less than 33.3 percent of the resulting company’s assets. Annual payments must commence twelve months after the date of that business combination. We elected to account for the DOJ Liability under the fair value option. To determine the fair value, we utilize a discounted cash flow model. Key assumptions for the discounted cash flow model include using a discount rate as of December 31, 2017 of 9.7 percent ; probability weightings of multiple cash flow scenarios and possible outcomes which contemplate the above conditions and estimates of forecasted net income, size of the balance sheet, capital levels, dividends and their impact on the timing of cash payments and the assumptions we believe a market participant would make to transfer the liability. The fair value of the DOJ Liability was $60 million at both December 31, 2017 and December 31, 2016 , respectively. Other litigation accruals At December 31, 2017 and December 31, 2016 , excluding the fair value liability relating to the DOJ litigation settlement, our total accrual for contingent liabilities and settled litigation was $1 million and $3 million , respectively. Commitments The following table is a summary of the contractual amount of significant commitments: December 31, 2017 2016 (Dollars in millions) Commitments to extend credit Mortgage loan interest-rate lock commitments $ 3,667 $ 4,115 Warehouse loan commitments 1,618 1,670 Commercial and industrial commitments 695 424 Other commercial commitments 1,021 651 HELOC commitments 283 179 Other consumer commitments 15 57 Standby and commercial letters of credit 50 30 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. Since many of these commitments expire without being drawn upon, the total commitment amounts do not necessarily represent future cash flow requirements. Commitments generally have fixed expiration dates or other termination clauses. We evaluate each customer's credit worthiness on a case-by-case basis. The amount of collateral obtained, if deemed necessary by us, upon extension of credit is based on management's credit evaluation of the counterparties. These instruments involve, to varying degrees, elements of credit and interest rate risk beyond the amount recognized on the Consolidated Statements of Financial Condition. Our 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. We utilize the same credit policies in making commitments and conditional obligations as we do for balance sheet instruments. The types of credit we extend are as follows: Mortgage loan interest-rate lock commitments. We enter into mortgage interest-rate lock commitments with our customers. These commitments are considered to be derivative instruments and the fair value of these commitments is recorded in the Consolidated Statements of Financial Condition in other assets. For further information, see Note 11 - Derivative Financial Instruments. Warehouse loan commitments. Lines of credit provided to mortgage originators to fund loans they originate and then sell. The proceeds of the sale of the loans are used to repay the draw on the line used to fund the loans. Commercial and industrial and other commercial commitments. Conditional commitments issued under various terms to lend funds to business and other entities. These commitments include revolving credit agreements, term loan commitments and short-term borrowing agreements. Many of these loan commitments have fixed expiration dates or other termination clauses and may require payment of a fee. Since many of these commitments are expected to expire without being funded, the total commitment amounts do not necessarily represent future liquidity requirements. HELOC commitments. Commitments to extend, originate or purchase credit are primarily lines of credit to consumers and have specified rates and maturity dates. Many of these commitments also have adverse change clauses, which allow us to cancel the commitment due to deterioration in the borrowers’ creditworthiness or a decline in the collateral value. Other consumer commitments. C onditional commitments issued to accommodate the financial needs of customers. The commitments are made under various terms to lend funds to consumers, which include revolving credit agreements, term loan commitments and short-term borrowing agreements. Standby and commercial letters of credit. 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 financial standby letters of credit irrevocably obligate the bank to pay a third party beneficiary when a customer fails to repay an outstanding loan or debt instrument. We maintain a reserve for the estimate of 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. A reserve balance of $3 million at both December 31, 2017 and 2016 , is reflected in other liabilities on the Consolidated Statements of Financial Condition.

Fair Value Measurements

Fair Value Measurements	12 Months Ended
	Dec. 31, 2017
Fair Value Disclosures [Abstract]
Fair Value Measurements	Fair Value Measurements We utilize fair value measurements to record or disclose the fair value on certain assets and liabilities. Fair value is defined as the price that would be received to sell an asset or paid to transfer a liability through an orderly transaction between market participants at the measurement date. The determination of fair values of financial instruments often requires the use of estimates. In cases where quoted market values in an active market are not available, we use present value techniques and other valuation methods to estimate the fair values of our financial instruments. These valuation models rely on market-based parameters when available, such as interest rate yield curves or credit spreads. Unobservable inputs may be based on management's judgment, assumptions and estimates related to credit quality, our future earnings, interest rates and other relevant inputs. These valuation methods require considerable judgment and the resulting estimates of fair value can be significantly affected by the assumptions made and methods used. 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 we 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 our 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. Assets and Liabilities Measured at Fair Value on a Recurring Basis The following tables present the financial instruments carried at fair value by caption on the Consolidated Statements of Financial Condition and by level in the valuation hierarchy: December 31, 2017 Level 1 Level 2 Level 3 Total Fair Value (Dollars in millions) Investment securities available-for-sale Agency - Commercial $ — $ 987 $ — $ 987 Agency - Residential — 794 — 794 Municipal obligations — 34 — 34 Corporate debt obligations — 38 — 38 Loans held-for-sale Residential first mortgage loans — 4,300 — 4,300 Loans held-for-investment Residential first mortgage loans — 8 — 8 Home equity — — 4 4 Mortgage servicing rights — — 291 291 Derivative assets Rate lock commitments (fallout-adjusted) — — 24 24 Mortgage-backed securities forwards — 4 — 4 Interest rate swaps and swaptions — 11 — 11 Total assets at fair value $ — $ 6,176 $ 319 $ 6,495 Derivative liabilities Interest rate swap on FHLB advances — (1 ) — (1 ) Mortgage-backed securities forwards — (6 ) — (6 ) Interest rate swaps — (4 ) — (4 ) DOJ litigation settlement — — (60 ) (60 ) Contingent consideration — — (25 ) (25 ) Total liabilities at fair value $ — $ (11 ) $ (85 ) $ (96 ) On May 15, 2017, the Company closed on the acquisition of certain assets of Opes Advisors (“Opes”), a California based retail mortgage originator and wealth management service provider. Although the acquired assets of Opes were not significant, the addition of Opes positions us to increase our distributed retail lending channel. Consideration in the acquisition of Opes consisted of upfront cash and contingent cash in the form of an earn-out. The earn-out is based on future target production volumes and profitability of the division which were significant inputs to the preliminary fair value. December 31, 2016 Level 1 Level 2 Level 3 Total Fair Value (Dollars in millions) Investment securities available-for-sale Agency - Commercial $ — $ 548 $ — $ 548 Agency - Residential — 898 — 898 Municipal obligations — 34 — 34 Loans held-for-sale Residential first mortgage loans — 3,145 — 3,145 Loans held-for-investment Residential first mortgage loans — 7 — 7 Home equity — — 65 65 Mortgage servicing rights — — 335 335 Derivative assets Rate lock commitments (fallout-adjusted) — — 24 24 Futures 2 — — 2 Mortgage-backed securities forwards — 43 — 43 Interest rate swaps and swaptions — 35 — 35 Interest rate swaps on FHLB advances (net) — 19 — 19 Total assets at fair value $ 2 $ 4,729 $ 424 $ 5,155 Derivative liabilities Rate lock commitments (fallout-adjusted) $ — $ — $ (6 ) $ (6 ) Mortgage-backed securities forwards — (11 ) — (11 ) Interest rate swaps — (37 ) — (37 ) Warrant liabilities — (4 ) — (4 ) DOJ litigation settlement — — (60 ) (60 ) Total liabilities at fair value $ — $ (52 ) $ (66 ) $ (118 ) There were no transfers between Level 1 and Level 2 during the years ended December 31, 2017 and 2016 , and 2015 . Fair Value Measurements Using Significant Unobservable Inputs The following tables include a roll forward of the Consolidated Statements of Financial Condition amounts (including the change in fair value) for financial instruments classified by us within Level 3 of the valuation hierarchy: Balance at Recorded Recorded Purchases / Originations Sales Settlement Transfers In (Out) Balance at End of Year Total Total Total (Dollars in millions) For the Years Ended December 31, 2017 Assets Loans held-for-sale Home equity $ — $ 1 $ — $ — $ — $ (52 ) $ (1 ) $ 52 $ — Loans held-for-investment Home equity 65 2 — — — — (8 ) (55 ) 4 Mortgage servicing rights 335 (22 ) — — 288 (310 ) — — 291 Rate lock commitments (net) (1) 18 54 — — 267 — — (315 ) 24 Totals $ 418 $ 35 $ — $ — $ 555 $ (362 ) $ (9 ) $ (318 ) $ 319 Liabilities DOJ litigation settlement $ (60 ) $ — $ — $ — $ — $ — $ — $ — $ (60 ) Contingent consideration — (1 ) — — (25 ) — 1 — (25 ) Totals $ (60 ) $ (1 ) $ — $ — $ (25 ) $ — $ 1 $ — $ (85 ) For the Years Ended December 31, 2016 Assets Loans held-for-investment Home equity $ 106 $ 5 $ — $ — $ — $ — $ (46 ) $ — $ 65 Mortgage servicing rights 296 (105 ) — — 228 (84 ) — — 335 Rate lock commitments (net) (1) 26 25 — — 325 — — (358 ) 18 Totals $ 428 $ (75 ) $ — $ — $ 553 $ (84 ) $ (46 ) $ (358 ) $ 418 Liabilities DOJ litigation settlement $ (84 ) $ 24 $ — $ — $ — $ — $ — $ — $ (60 ) Year Ended December 31, 2015 Assets Investment securities available-for-sale Municipal obligation $ 2 $ — $ — $ — $ — $ — $ (2 ) $ — $ — Loans held-for-investment Home equity $ 185 $ (2 ) $ — $ — $ — $ — $ (77 ) $ — $ 106 Mortgage servicing rights 258 (46 ) — — 260 (176 ) — — 296 Other investments 100 (100 ) — Rate lock commitments (net) (1) 31 60 — — 277 — — (342 ) 26 Totals $ 576 $ 12 $ — $ — $ 537 $ (176 ) $ (179 ) $ (342 ) $ 428 Liabilities Long-term debt $ (84 ) $ — $ (3 ) $ — $ — $ 52 $ 35 $ — $ — DOJ litigation settlement (82 ) (2 ) — — — — — — (84 ) Totals $ (166 ) $ (2 ) $ (3 ) $ — $ — $ 52 $ 35 $ — $ (84 ) (1) Rate lock commitments are reported on a fallout adjusted basis. Transfers out of Level 3 represent the settlement value of the commitments that are transferred to LHFS, which are classified as Level 2 assets. We utilized swaptions futures, forward agency and loan sales and interest rate swaps to manage the risk associated with mortgage servicing rights and rate lock commitments. Gains and losses for individual lines in the tables do not reflect the effect of our risk management activities related to such Level 3 instruments. The following tables present the quantitative information about recurring Level 3 fair value financial instruments and the fair value measurements as of: Fair Value Valuation Technique Unobservable Input Range (Weighted Average) (Dollars in millions) December 31, 2017 Assets Loans held-for-investment Home equity $ 4 Discounted cash flows Discount rate 7.2% - 10.8% (9.0%) Mortgage servicing rights $ 291 Discounted cash flows Option adjusted spread 5.0% - 7.5% (6.3%) Rate lock commitments (net) $ 24 Consensus pricing Origination pull-through rate 64.7% - 97.1% (82.0%) Liabilities DOJ litigation settlement $ (60 ) Discounted cash flows Discount rate 7.8% - 11.7% (9.7%) Contingent consideration $ (25 ) Discounted cash flows Beta 0.6 - 1.6 (1.1) Fair Value Valuation Technique Unobservable Input Range (Weighted Average) (Dollars in millions) December 31, 2016 Assets Loans held-for-investment Home equity $ 65 Discounted cash flows Discount rate 6.0% - 12.2% (9.3%) Mortgage servicing rights $ 335 Discounted cash flows Option adjusted spread 6.2% - 9.3% (7.8%) Rate lock commitments (net) $ 18 Consensus pricing Origination pull-through rate 66.9% - 100.0% (83.6%) Liabilities DOJ litigation settlement $ (60 ) Discounted cash flows Discount rate 6.6% - 9.8% (8.2%) Recurring Significant Unobservable Inputs Home equity. The most significant unobservable inputs used in the fair value measurement of the home equity loans are discount rates, constant prepayment rates, and default rates. The constant prepayment and default rates are based on a 12 month historical average. Significant increases (decreases) in the discount rate in isolation would result in a significantly lower (higher) fair value measurement. Increases (decreases) in prepay rates in isolation result in a higher (lower) fair value and increases (decreases) in default rates in isolation result in a lower (higher) fair value. HELOC loans formerly included in the FSTAR 2005-1 and FSTAR 2006-1 securitization trusts, also classified as home equity loans, were valued utilizing a loan-level discounted cash flow model which projects expected cash flows given three potential outcomes: (1) paid-in-full at scheduled maturity, (2) default at scheduled maturity (foreclosure), and (3) modification at scheduled maturity into an amortizing HELOC. Loans are placed into the potential outcome buckets based on their underlying current delinquency, FICO scores and property CLTV all of which are unobservable inputs. These loans were sold in the second quarter of 2017. MSRs. 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 three assumptions in isolation would result in a significantly lower (higher) fair value measurement. Weighted average life (in years) is used to determine the change in fair value of MSRs. For December 31, 2017 and December 31, 2016 the weighted average life (in years) for the entire MSRs portfolio was 6.0 and 6.6 , respectively. DOJ litigation settlement. The significant unobservable inputs used in the fair value measurement of the DOJ litigation settlement are the discount rate and asset growth rate, in addition to those discussed in Note 21 - Legal Proceedings, Contingencies and Commitments. Significant increases (decreases) in the discount rate or asset growth rate in isolation would result in a marginally lower (higher) fair value measurement. For further information on the fair value inputs related to the DOJ litigation settlement, see Note 21 - Legal Proceedings, Contingencies and Commitments. Rate lock commitments. 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 our 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 fallout 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. Contingent consideration. The significant unobservable input used in the fair value of the contingent consideration is future forecasted target production volumes and profitability of the division. An increase or decrease to these inputs results in an increase or decrease of the liability. Other unobservable inputs include Beta and volatility which drive the risk adjusted discount rate utilized in a Monte Carlo simulation. An increase or decrease in these inputs results in a decrease or increase to the liability. Assets and Liabilities Measured at Fair Value on a Nonrecurring Basis We also have assets that under certain conditions are subject to measurement at fair value on a nonrecurring basis. The following table presents assets measured at fair value on a nonrecurring basis: Total (1) Level 2 Level 3 Gains/(Losses) (Dollars in millions) December 31, 2017 Loans held-for-sale (2) $ 6 $ 6 $ — $ (1 ) Impaired loans held-for-investment (2) Residential first mortgage loans 21 — 21 (10 ) Repossessed assets (3) 8 — 8 — Totals $ 35 $ 6 $ 29 $ (11 ) December 31, 2016 Loans held-for-sale (2) $ 9 $ 9 $ — $ (2 ) Impaired loans held-for-investment (2) Residential first mortgage loans 25 — 25 (28 ) Repossessed assets (3) 14 — 14 (2 ) Totals $ 48 $ 9 $ 39 $ (32 ) (1) The fair values are determined at various dates during the years ended December 31, 2017 and 2016 , respectively. (2) Gains/(losses) reflect fair value adjustments on assets for which we did not elect the fair value option. (3) Gains/(losses) reflect write downs of repossessed assets based on the estimated fair value of the specific assets. The following tables present the quantitative information about nonrecurring Level 3 fair value financial instruments and the fair value measurements: Fair Value Valuation Technique Unobservable Input Range (Weighted Average) (Dollars in millions) December 31, 2017 Impaired loans held-for-investment Loans held-for-investment $ 21 Fair value of collateral Loss severity discount 25% - 30% (27.9%) Repossessed assets $ 8 Fair value of collateral Loss severity discount 0% - 100% (70.9%) December 31, 2016 Impaired loans held-for-investment Residential first mortgage loans $ 25 Fair value of collateral Loss severity discount 22% - 40% (29.5%) Repossessed assets $ 14 Fair value of collateral Loss severity discount 22% - 100% (69.5%) Nonrecurring 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 evaluations which incorporate measures such as recent sales prices for comparable properties. Fair Value of Financial Instruments The following table presents the carrying amount and estimated fair value of financial instruments that are carried either at fair value, cost, or amortized cost: December 31, 2017 Estimated Fair Value Carrying Value Total Level 1 Level 2 Level 3 (Dollars in millions) Assets Cash and cash equivalents $ 204 $ 204 $ 204 $ — $ — Investment securities available-for-sale 1,853 1,853 — 1,853 — Investment securities held-to-maturity 939 924 — 924 — Loans held-for-sale 4,321 4,322 — 4,322 — Loans held-for-investment 7,713 7,667 — 8 7,659 Loans with government guarantees 271 261 — 261 — Mortgage servicing rights 291 291 — — 291 Federal Home Loan Bank stock 303 303 — 303 — Bank owned life insurance 330 330 — 330 — Repossessed assets 8 8 — — 8 Other assets, foreclosure claims 84 84 — 84 — Derivative financial instruments, assets 39 39 — 15 24 Liabilities Retail deposits Demand deposits and savings accounts $ (4,965 ) $ (4,557 ) $ — $ (4,557 ) $ — Certificates of deposit (1,493 ) (1,498 ) — (1,498 ) — Wholesale deposits (45 ) (43 ) — (43 ) — Government deposits (1,073 ) (1,048 ) — (1,048 ) — Company controlled deposits (1,358 ) (1,311 ) — (1,311 ) — Federal Home Loan Bank advances (5,665 ) (5,662 ) — (5,662 ) — Long-term debt (494 ) (417 ) — (417 ) — DOJ litigation settlement (60 ) (60 ) — — (60 ) Contingent consideration (25 ) (25 ) — — (25 ) Derivative financial instruments, liabilities (11 ) (11 ) — (11 ) — December 31, 2016 Estimated Fair Value Carrying Value Total Level 1 Level 2 Level 3 (Dollars in millions) Assets Cash and cash equivalents $ 158 $ 158 $ 158 $ — $ — Investment securities available-for-sale 1,480 1,480 — 1,480 — Investment securities held-to-maturity 1,093 1,084 — 1,084 — Loans held-for-sale 3,177 3,178 — 3,178 — Loans held-for-investment 6,065 5,998 — 7 5,991 Loans with government guarantees 365 354 — 354 — Mortgage servicing rights 335 335 — — 335 Federal Home Loan Bank stock 180 180 — 180 — Bank owned life insurance 271 271 — 271 — Repossessed assets 14 14 — — 14 Other assets, foreclosure claims 135 135 — 135 — Derivative financial instruments, assets 123 123 45 54 24 Liabilities Retail deposits Demand deposits and savings accounts $ (5,268 ) $ (4,956 ) $ — $ (4,956 ) $ — Certificates of deposit (1,056 ) (1,062 ) — (1,062 ) — Government deposits (1,030 ) (1,011 ) — (1,011 ) — Company controlled deposits (1,446 ) (1,371 ) — (1,371 ) — Federal Home Loan Bank advances (2,980 ) (2,964 ) — (2,964 ) — Long-term debt (493 ) (277 ) — (277 ) — Warrant liabilities (4 ) (4 ) — (4 ) — DOJ litigation settlement (60 ) (60 ) — — (60 ) Derivative financial instruments, liabilities (54 ) (54 ) (11 ) (37 ) (6 ) The methods and assumptions used by us 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. Investment securities held-to-maturity. Fair values are generated using market inputs, where possible, 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. 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. 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. Federal Home Loan Bank stock. No secondary market exists for FHLB stock. The stock is bought and sold at par by the FHLB. Management believes that the recorded value equals the fair value. Bank owned life insurance. The fair value of bank owned life insurance policies is based on the cash surrender values of the policies as reported by the insurance companies. Other assets, foreclosure claims. The fair value of foreclosure claims with government guarantees approximates the carrying amount. Deposit accounts. The fair value of deposits with no defined maturity is estimated based on a discounted cash flow model that incorporates current market rates for similar products and expected attrition. 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 We elected the fair value option for certain items as discussed throughout the Notes to the Consolidated Financial Statements to mitigate a divergence between accounting losses and economic exposure. Interest income on LHFS is accrued on the principal outstanding primarily using the "simple-interest" method. The following table reflects the change in fair value included in earnings of financial instruments for which the fair value option has been elected: For the Years Ended December 31, 2017 2016 2015 (Dollars in millions) Assets Loans held-for-sale Net gain on loan sales $ 283 $ 269 $ 321 Loans held-for-investment Other noninterest income 1 1 40 Liabilities Long-term debt Other noninterest income $ — $ — $ 29 Litigation settlement Other noninterest income — 24 — Other noninterest (expense) — — (2 ) The following table reflects the difference between the aggregate fair value and aggregate remaining contractual principal balance outstanding for assets and liabilities for which the fair value option has been elected: December 31, 2017 December 31, 2016 Unpaid Principal Balance Fair Value Fair Value Over / (Under) Unpaid Principal Balance Unpaid Principal Balance Fair Value Fair Value Over / (Under) Unpaid Principal Balance (Dollars in millions) Assets Nonaccrual loans Loans held-for-sale $ 6 $ 5 $ (1 ) $ 2 $ 2 $ — Loans held-for-investment 5 4 (1 ) 19 13 (6 ) Total nonaccrual loans $ 11 $ 9 $ (2 ) $ 21 $ 15 $ (6 ) Other performing loans Loans held-for-sale $ 4,167 $ 4,295 $ 128 $ 3,103 $ 3,143 $ 40 Loans held-for-investment 10 8 (2 ) 72 59 (13 ) Total other performing loans $ 4,177 $ 4,303 $ 126 $ 3,175 $ 3,202 $ 27 Total loans Loans held-for-sale $ 4,173 $ 4,300 $ 127 $ 3,105 $ 3,145 $ 40 Loans held-for-investment 15 12 (3 ) 91 72 (19 ) Total loans $ 4,188 $ 4,312 $ 124 $ 3,196 $ 3,217 $ 21 Liabilities Litigation settlement (1) $ (118 ) $ (60 ) $ 58 $ (118 ) $ (60 ) $ 58 (1) We are obligated to pay $118 million in installment payments upon meeting certain performance conditions, as described in Note 21 - Legal Proceedings, Contingencies and Commitments.

Segment Information

Segment Information	12 Months Ended
	Dec. 31, 2017
Segment Reporting [Abstract]
Segment Information	Segment Information Our operations are conducted through three operating segments: Community Banking, Mortgage Originations, and Mortgage Servicing. The Other segment 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. Effective January 1, 2017, activity related to Loans with Government Guarantees, was moved from the Mortgage Servicing segment to the Mortgage Originations segment. In addition, we began to allocate the tax provision at a segment level whereas previously, the tax provision was reflected in the Other segment. To allocate the tax provision, the statutory federal tax rate is used for Community Banking, Mortgage Originations, and Mortgage Servicing segments with the difference between the statutory rate and the effective tax rate held in the Other segment. Prior period segment financial information, related to both changes, has been recast to conform to the current presentation. The Community Banking segment originates loans, provides deposits and fee based services to consumer, business, and mortgage lending customers through its Branch Banking, Business Banking and Commercial Banking, Government Banking, Warehouse Lending and LHFI Portfolio groups. Products offered through these groups include checking accounts, savings accounts, money market accounts, certificates of deposit, consumer loans, commercial loans, commercial real estate loans, equipment finance and leasing, home builder finance loans and warehouse lines of credit. Other financial services available include consumer and corporate card services, customized treasury management solutions, merchant services and capital markets services such as loan syndications. In addition, wealth management products and services are provided through Opes as of the acquisition date of May 15, 2017. 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 for others on a fee for service basis and may also collect ancillary fees and earn income through the use of noninterest-bearing escrows. Revenue for those serviced and subserviced loans is earned on a contractual fee basis, with the fees varying based on our responsibilities and the status of the underlying loans. The Mortgage Servicing segment provides servicing of residential mortgages for our own LHFI portfolio in the Community Banking segment for which it earns revenue via an intersegment service fee allocation. 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, and miscellaneous other expenses of a corporate nature. Treasury functions include administering the investment securities portfolios, balance sheet funding, and interest rate risk management. 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 Community Banking, Mortgage Originations or Mortgage Servicing segments. Revenues are comprised of net interest income (before the provision (benefit) for loan losses) and noninterest income. Noninterest expenses and provision (benefit) for income taxes, 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. The following tables present financial information by business segment for the periods indicated: Year Ended December 31, 2017 Community Banking Mortgage Originations Mortgage Servicing Other Total (Dollars in millions) Summary of Operations Net interest income $ 238 $ 129 $ 22 $ 1 $ 390 Net gain (loss) on loan sales (10 ) 278 — — 268 Representation and warranty benefit — 13 — — 13 Other noninterest income 33 79 55 22 189 Total net interest income and noninterest income 261 499 77 23 860 Benefit (provision) for loan losses (4 ) (4 ) — 2 (6 ) Depreciation and amortization expense (9 ) (8 ) (4 ) (19 ) (40 ) Other noninterest expense (188 ) (318 ) (96 ) (1 ) (603 ) Total noninterest expense (197 ) (326 ) (100 ) (20 ) (643 ) Income (loss) before income taxes 60 169 (23 ) 5 211 Provision (benefit) for income taxes 21 59 (8 ) 76 148 Net income (loss) $ 39 $ 110 $ (15 ) $ (71 ) $ 63 Intersegment revenue $ (6 ) $ 4 $ 19 $ (17 ) $ — Average balances Loans held-for-sale $ 16 $ 4,130 $ — $ — $ 4,146 Loans with government guarantees — 290 — — 290 Loans held-for-investment 6,460 7 — 29 6,496 Total assets 6,544 5,414 36 3,852 15,846 Deposits 7,454 — 1,453 — 8,907 Year Ended December 31, 2016 Community Banking Mortgage Originations Mortgage Servicing Other Total (Dollars in millions) Summary of Operations Net interest income $ 206 $ 90 $ 25 $ 2 $ 323 Net gain (loss) on loan sales 6 310 — — 316 Representation and warranty benefit — 19 — — 19 Other noninterest income 28 24 56 44 152 Total net interest income and noninterest income 240 443 81 46 810 Benefit (provision) for loan losses 10 (2 ) — — 8 Depreciation and amortization expense (7 ) (5 ) (4 ) (16 ) (32 ) Other noninterest expense (173 ) (253 ) (97 ) (5 ) (528 ) Total noninterest expense (180 ) (258 ) (101 ) (21 ) (560 ) Income (loss) before income taxes 70 183 (20 ) 25 258 Provision (benefit) for income taxes 24 64 (7 ) 6 87 Net income (loss) $ 46 $ 119 $ (13 ) $ 19 $ 171 Intersegment revenue $ (3 ) $ (1 ) $ 23 $ (19 ) $ — Average balances Loans held-for-sale $ 66 $ 3,068 $ — $ — $ 3,134 Loans with government guarantees — 435 — — 435 Loans held-for-investment 5,807 6 — — 5,813 Total assets 5,906 4,435 28 3,538 13,907 Deposits 7,151 — 1,611 — 8,762 Year Ended December 31, 2015 Community Banking Mortgage Originations Mortgage Servicing Other Total (Dollars in millions) Summary of Operations Net interest income $ 171 $ 80 $ 5 $ 31 $ 287 Net gain (loss) on loan sales (15 ) 303 — — 288 Representation and warranty benefit — 19 — — 19 Other noninterest income 25 74 60 4 163 Total net interest income and noninterest income 181 476 65 35 757 Benefit for loan losses 19 — — — 19 Depreciation and amortization expense (6 ) (3 ) (3 ) (12 ) (24 ) Other noninterest expense (154 ) (244 ) (105 ) (9 ) (512 ) Total noninterest expense (160 ) (247 ) (108 ) (21 ) (536 ) Income (loss) before income taxes 40 229 (43 ) 14 240 Provision (benefit) for income taxes 14 80 (15 ) 3 82 Net income (loss) $ 26 $ 149 $ (28 ) $ 11 $ 158 Intersegment revenue $ (15 ) $ 7 $ 20 $ (12 ) $ — Average balances Loans held-for-sale $ 40 $ 2,148 $ — $ — $ 2,188 Loans with government guarantees — 633 — — 633 Loans held-for-investment 4,986 4 — 86 5,076 Total assets 4,972 3,553 52 3,379 11,956 Deposits 6,674 — 1,203 — 7,877

Holding Company Only Financial

Holding Company Only Financial Statements	12 Months Ended
	Dec. 31, 2017
Condensed Financial Information of Parent Company Only Disclosure [Abstract]
Holding Company Only Financial Statements	Holding Company Only Financial Statements The following are the unconsolidated financial statements for the Holding Company on a stand-alone basis. These condensed financial statements should be read in conjunction with the Consolidated Financial Statements and Notes thereto. The Holding Company's principal sources of funds are cash dividends paid by the Bank to the Holding Company. Federal laws and regulations limit the amount of dividends or other capital distributions the Bank may pay the Holding Company. Flagstar Bancorp, Inc. Condensed Unconsolidated Statements of Financial Condition (Dollars in millions) December 31, 2017 2016 (Dollars in millions) Assets Cash and cash equivalents $ 196 $ 70 Investment in subsidiaries (1) 1,676 1,728 Other assets 44 57 Total assets $ 1,916 $ 1,855 Liabilities and Stockholders’ Equity Liabilities Long term debt $ 494 $ 493 Other liabilities 23 26 Total liabilities 517 519 Stockholders’ Equity Common stock 1 1 Additional paid in capital 1,512 1,503 Accumulated other comprehensive income (17 ) (7 ) Accumulated deficit (97 ) (161 ) Total stockholders’ equity 1,399 1,336 Total liabilities and stockholders’ equity $ 1,916 $ 1,855 (1) Includes unconsolidated trusts of $7 million for December 31, 2017 and 2016 . Flagstar Bancorp, Inc. Condensed Unconsolidated Statements of Operations (Dollars in millions) For the Years Ended December 31, 2017 2016 2015 (Dollars in millions) Expenses Interest $ 25 $ 16 $ 7 General and administrative 9 9 13 Total 34 25 20 Loss before undistributed income of subsidiaries (34 ) (25 ) (20 ) Equity in undistributed income of subsidiaries 110 188 172 Income before income taxes 76 163 152 Provision (benefit) for income taxes 13 (8 ) (6 ) Net income 63 171 158 Other comprehensive income (1) (9 ) (9 ) (6 ) Comprehensive income $ 54 $ 162 $ 152 (1) See Consolidated Statements of Comprehensive Income for other comprehensive income (loss) detail. Flagstar Bancorp, Inc. Condensed Unconsolidated Statements of Cash Flows (Dollars in millions) For the Years Ended December 31, 2017 2016 2015 (Dollars in millions) Net income (loss) $ 63 $ 171 $ 158 Adjustments to reconcile net loss to net cash provided by operating activities Equity in (income) loss of subsidiaries 47 12 (172 ) Stock-based compensation 5 10 3 Change in other assets 18 (8 ) (6 ) Provision for deferred tax benefit — — 1 Change in other liabilities (2 ) (22 ) 9 Change in fair value and other non-cash changes (5 ) (4 ) — Net cash used in operating activities 126 159 (7 ) Investing Activities Net change in investment in subsidiaries — — (2 ) Net cash provided by (used in) investment activities — — (2 ) Financing Activities Proceeds from the issuance of junior subordinated debentures — 245 — Redemption of preferred stock — (267 ) — Dividends paid on preferred stock — (104 ) — Net cash used in financing activities — (126 ) — Net increase (decrease) in cash and cash equivalents 126 33 (9 ) Cash and cash equivalents, beginning of year 70 37 46 Cash and cash equivalents, end of year $ 196 $ 70 $ 37

Quarterly Financial Data (Unaud

Quarterly Financial Data (Unaudited)	12 Months Ended
	Dec. 31, 2017
Quarterly Financial Information Disclosure [Abstract]
Quarterly Financial Data (Unaudited)	Quarterly Financial Data (Unaudited) The following table represents summarized data for each of the quarters in 2017 , 2016 and 2015 : 2017 First Second Third Fourth (Dollars in millions, except per share data) Interest income $ 110 $ 129 $ 140 $ 148 Interest expense 27 32 37 41 Net interest income 83 97 103 107 Provision (benefit) for loan losses 3 (1 ) 2 2 Net interest income after provision for loan losses 80 98 101 105 Net gain on loan sales 48 66 75 79 Loan fees and charges 15 20 23 24 Deposit fees and charges 4 5 5 4 Loan administration income 5 6 5 5 Net return (loss) on the mortgage servicing rights 14 6 6 (4 ) Representation and warranty benefit 4 3 4 2 Other noninterest income 10 10 12 14 Noninterest expense 140 154 171 178 Income before income tax 40 60 60 51 Provision for income taxes 13 19 20 96 Net income (loss) from continuing operations $ 27 $ 41 $ 40 $ (45 ) Basic income (loss) per share $ 0.47 $ 0.72 $ 0.71 $ (0.79 ) Diluted income (loss) per share $ 0.46 $ 0.71 $ 0.70 $ (0.79 ) 2016 First Second Third Fourth (Dollars in millions, except per share data) Interest income $ 101 $ 99 $ 106 $ 111 Interest expense 22 22 26 24 Net interest income 79 77 80 87 (Benefit) provision for loan losses (13 ) (3 ) 7 1 Net interest income after provision for loan losses 92 80 73 86 Net gain on loan sales 75 90 94 57 Loan fees and charges 15 19 22 20 Loan administration income 6 4 4 4 Net (loss) on the mortgage servicing rights (6 ) (4 ) (11 ) (5 ) Representation and warranty benefit 2 4 6 7 Other noninterest income 13 15 41 15 Noninterest expense 137 139 142 142 Income before income tax 60 69 87 42 Provision for income taxes 21 22 30 14 Net income from continuing operations $ 39 $ 47 $ 57 $ 28 Basic income per share $ 0.56 $ 0.67 $ 0.98 $ 0.50 Diluted income per share $ 0.54 $ 0.66 $ 0.96 $ 0.49 2015 First Second Third Fourth (Dollars in millions, except per share data) Interest income $ 79 $ 90 $ 91 $ 95 Interest expense 14 17 18 19 Net interest income 65 73 73 76 (Benefit) for loan losses (4 ) (13 ) (1 ) (1 ) Net interest income after provision for loan losses 69 86 74 77 Net gain on loan sales 91 83 68 46 Loan fees and charges 17 19 17 14 Loan administration income 4 7 8 7 Net (loss) return on mortgage servicing rights (2 ) 9 12 9 Representation and warranty benefit 2 5 6 6 Other noninterest income 7 3 17 15 Noninterest expense 138 138 131 129 Income before income tax 50 74 71 45 Provision for income taxes 18 28 24 12 Net income from continuing operations $ 32 $ 46 $ 47 $ 33 Basis income per share $ 0.43 $ 0.69 $ 0.70 $ 0.45 Diluted income per share $ 0.43 $ 0.68 $ 0.69 $ 0.44

Description of Business, Basi33

Description of Business, Basis of Presentation, and Summary of Significant Accounting Policies (Policies)	12 Months Ended
	Dec. 31, 2017
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Consolidation and Basis of Presentation	Consolidation and Basis of Presentation The accounting and financial reporting policies of us and our subsidiaries conform to accounting principles generally accepted in the United States. Additionally, where applicable the policies conform to the accounting and reporting guidelines prescribed by regulatory authorities. Certain prior period amounts have been reclassified to conform to the current period presentation. The preparation of the Consolidated Financial Statements, requires management to make estimates and assumptions that affect reported amounts of assets and liabilities, revenues and expenses and disclosures of contingent assets and liabilities. Actual results could be materially different from these estimates.
Cash and Cash Equivalents	Cash and Cash Equivalents Cash and cash equivalents include cash on hand, amounts due from correspondent banks and the FRB, and short-term investments that have a maturity at the date of acquisition of three months or less and are readily convertible to cash.
Investment Securities	Investment Securities We measure securities classified as AFS at fair value, with unrealized gains and losses, net of tax, included in other comprehensive income (loss) in stockholders’ equity. We recognize realized gains and losses on AFS securities when securities are sold. The cost of securities sold is based on the specific identification method. Any gains or losses realized upon the sale of a security are reported in other noninterest income in the Consolidated Statements of Operations. The fair value of investment securities is based on observable market prices, when available. If observable market prices are not available, our valuations are based on alternative methods, including: quotes for similar fixed-income securities, matrix pricing, or discounted cash flow methods. The fair values, obtained through an independent third party utilizing a pricing service, are compared to independent pricing sources on a quarterly basis. For further information, see Note 2 - Investment Securities and Note 22 - Fair Value Measurements. Investment securities HTM are carried at amortized cost and adjusted for amortization of premiums and accretion of discounts using the interest method. Transfers of investment securities into the HTM category from the AFS category are accounted for at fair value at the date of transfer. Any related unrealized holding gain (loss), net of tax, that was included in the transfer is retained in other comprehensive income (loss) and is amortized as an adjustment to interest income over the remaining life of the securities. We evaluate AFS and HTM investment securities for OTTI on a quarterly basis. An OTTI is considered to have occurred when the fair value of a debt security is below its amortized costs and we (1) have the intent to sell the security, (2) will more likely than not be required to sell the security before recovery of its amortized cost, or (3) does not expect to recover the entire amortized cost basis of the security. Investments that have an OTTI are written down through a charge to earnings for the amount representing the credit loss on the security. Gains and losses related to all other factors are recognized in other comprehensive income (loss). For the years ended December 31, 2015 through December 31, 2017, we did not recognize any OTTI losses. Investment securities transactions are recorded on the trade date for purchases and sales. Interest earned on investment securities, including the amortization of premiums and the accretion of discounts are determined using the effective interest method over the period of maturity, recorded in interest income in the Consolidated Statements of Operations. For further information, see Note 2 - Investment Securities.
Loans Held-for-Sale	Loans Held-for-Sale We classify loans as LHFS when we originate or purchase loans that we intend to sell. We have elected the fair value option for the majority of our LHFS. We estimate the fair value of mortgage loans based on quoted market prices for securities backed by similar types of loans, where available, or by discounting estimated cash flows using observable inputs inclusive of interest rates, prepayment speeds and loss assumptions for similar collateral. LHFS that are recorded at lower of cost or fair value may be carried at fair value on a nonrecurring basis when the fair value is less than cost. For further information, see Note 22 - Fair Value Measurements. Loans that are transferred into the LHFS portfolio from the LHFI portfolio, due to a change in intent, are recorded at the lower of cost or fair value. Gains or losses recognized upon the sale of loans are determined using the specific identification method.
Loans Held-for-Investment	Loans Held-for-Investment We classify loans that we have the intent and ability to hold for the foreseeable future or until maturity as LHFI. Loans held-for-investment are reported at their amortized cost, which includes the outstanding principal balance adjusted for any unamortized premiums, discounts, deferred fees and costs. Premiums and discounts on purchased loans and non-refundable loan origination and commitment fees, net of direct costs of originating or acquiring loans, are deferred and recognized over the estimated lives of the related loans as an adjustment to the loans’ effective yield, which is included in interest income on loans in the Consolidated Statements of Operations. Loans originally classified as LHFS, for which we have elected the fair value option, and subsequently transferred to LHFI continue to be measured and reported at fair value on a recurring basis. Changes in fair value are recorded to other noninterest income on the Consolidated Statements of Operations. The fair value of these loans is determined using the same methods described above for LHFS. For further information, see Note 22 - Fair Value Measurements. When loans originally classified as LHFS or as LHFI are reclassified due to a change in intent or ability to hold, cash flows associated with the loans are classified in the Consolidated Statements of Cash Flows as operating or investing, as appropriate, in accordance with the initial classification of the loans.
Past Due and Impaired Loans	Past Due and Impaired Loans Loans are considered to be past due when any payment of principal or interest is 30 days past the scheduled payment date. While it is the goal of management to collect on loans, we attempt to work out a satisfactory repayment schedule or modification with past due borrowers and will undertake foreclosure proceedings if the delinquency is not satisfactorily resolved. Our practices regarding past due loans are designed to both assist borrowers in meeting their contractual obligations and minimize losses incurred by the bank. We cease the accrual of interest on all classes of consumer and commercial loans upon the earlier of, becoming 90 days past due, or when doubt exists as to the ultimate collection of principal or interest (classified as nonaccrual or nonperforming loans). When a loan is placed on nonaccrual status, the accrued interest income is reversed and the loan may only return to accrual status when principal and interest become current and are anticipated to be fully collectible. Loans are considered impaired if it is probable that payment of interest and principal will not be made in accordance with the original contractual terms of the loan agreement or when any portion of principal or interest is 90 days past due. This classification includes both performing and nonperforming modified loans. For further information, see Note 4 - Loans Held-for-Investment. When a loan is considered impaired, the accrual of interest income is discontinued until the receipt of principal and interest is no longer in doubt. Interest income is recognized on impaired loans using a cost recovery method unless amounts contractually due are not in doubt. Cash received on impaired loans are applied entirely against principal until the loan has been collected in full, after which time any additional cash receipts are recognized as interest income.
Loan Modifications (Troubled Debt Restructurings)	Loan Modifications (Troubled Debt Restructurings) We may modify certain loans in both our consumer and commercial loan portfolios to retain customers or to maximize collection of the outstanding loan balance. We have 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. Our 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 nonperforming TDRs if the loan was nonperforming prior to the restructuring, or based upon the results of a contemporaneous credit evaluation. Such 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 be classified as performing TDRs and begin to accrue interest. Performing and nonperforming TDRs remain impaired as interest and principal will not be received in accordance with the original contractual terms of the loan agreement. 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. We measure impairments using a discounted cash flow method for performing TDRs and measure impairment based on collateral values for nonperforming TDRs.
Allowance for Loan Losses	Allowance for Loan Losses The allowance for loan losses represents management's estimate of probable losses in our LHFI portfolio, excluding loans carried under the fair value option. We establish an allowance when (a) available information indicates that it is probable that a loss has occurred and (b) the amount of the loss can be reasonably estimated. The allowance provides for probable losses that have been identified with specific customer relationships (individually evaluated) and for probable losses believed to be inherent in the loan portfolio but that have not been specifically identified (collectively evaluated). Management assigns qualitative factors to each loan portfolio segment based on consideration of the following factors: changes in lending policies and procedures, changes in economic and business conditions, changes in the nature and volume of the portfolio, changes in lending management, changes in credit quality statistics, changes in the quality of the loan review system, changes in the value of underlying collateral for collateral-dependent loans, changes in concentrations of credit, and other internal or external factor changes. A specific allowance is established on impaired loans when it is probable all amounts due will not be collected pursuant to the original contractual terms of the loan and the recorded investment in the loan exceeds its fair value. The required allowance is measured using either the present value of the expected future cash flows discounted at the loan's effective interest rate or the fair value of the collateral less estimated disposal costs if the loan is collateral dependent. A general allowance is established for losses inherent on non-impaired loans by segmenting the portfolio based upon common risk characteristics. The general loss is then determined by using a historical loss model which utilizes our loss history by specific product, or if the product is not sufficiently seasoned, per readily available industry peer loss data. The loss model utilizes a loss emergence period that represents the average amount of time between when the loss event first occurs and when the specific loan is charged-off. In addition to the loss history or peer data, we also include a qualitative adjustment that considers economic risks, industry and geographic concentrations and other factors not adequately captured in our methodology. Consumer loans secured by real estate are charged-off to the estimated fair value of the collateral when a loss is confirmed or at 180 days past due, whichever is sooner. Loss confirming events include, but are not limited to, bankruptcy (unsecured), continued delinquency, foreclosure or receipt of an asset valuation indicating a collateral deficiency and the asset is the sole source of repayment. For consumer loans not secured by real estate, the charge-off is taken upon the earlier of the confirmation of a loss or 120 days past due. Commercial loans are evaluated on a loan level basis and either charged-off or written down to net realizable value if a loss confirming event has occurred. Loss confirming events include, but are not limited to, bankruptcy (unsecured), continued delinquency, foreclosure, or receipt of an asset valuation indicating a collateral deficiency and that asset is the sole source of repayment.
Transfers of Financial Assets	Transfers of Financial Assets Our recognition of gain or loss on the sale of loans for which we surrender control is accounted for as a sale to the extent that 1) the transferred assets are legally isolated from us or our consolidated affiliates, even in bankruptcy or other receivership, 2) the transferee has the right to pledge or exchange the assets with no conditions that constrain the transferee and provide more than a trivial benefit to the Company, and 3) we do not maintain the obligation or unilateral ability to reclaim or repurchase the assets. If the sale criteria are met, the transferred financial assets are removed from the Consolidated Statements of Financial Condition and a gain or loss on sale is recognized.
Variable Interest Entities	Variable Interest Entities An entity that has a controlling financial interest in a variable interest entity ("VIE") is referred to as the primary beneficiary and consolidates the VIE. An entity is deemed to have a controlling financial interest and is the primary beneficiary of a VIE if it has both the power to direct the activities of the VIE that most significantly impact the VIE’s economic performance and an obligation to absorb losses or the right to receive benefits that could potentially be significant to the VIE.
Repossessed Assets	Repossessed Assets Repossessed assets include one-to-four family residential property, commercial property and one-to-four family homes under construction that were acquired through foreclosure or acceptance of a deed-in-lieu of foreclosure. Repossessed assets are initially recorded in other assets at the estimated fair value of the collateral less estimated costs to sell. Losses arising from the initial acquisition of such properties are charged against the ALLL at the time of transfer. Subsequent valuation adjustments to reflect fair value, as well as gains and losses on disposal of these properties, are charged to other noninterest expense within noninterest expense in the Consolidated Statements of Operations as incurred.
Loans with Government Guarantees	Loans with Government Guarantees We originate government guaranteed loans which are pooled and sold as Ginnie Mae MBS. Pursuant to Ginnie Mae servicing guidelines, we have the unilateral right to repurchase loans 90 days or more past due securitized in Ginnie Mae pools. As a result, once the delinquency criteria have been met, and regardless of whether the repurchase option has been exercised, we account for the loans as if they had been repurchased. We recognize the loans and corresponding liability as loans with government guarantees and other liabilities, respectively, in the Consolidated Statements of Financial Condition. If the loan is repurchased, the liability is cash settled and the loan with government guarantee remains. Once repurchased, we may collect losses through a claims process with the government agency, as an approved lender.
Federal Home Loan Bank Stock	Federal Home Loan Bank Stock We own stock in the FHLB of Indianapolis as required to permit us to obtain membership in and to borrow from the FHLB. No market quotes exist for the stock. The stock is redeemable at par and is carried at cost.
Premises and Equipment	Premises and Equipment Premises and equipment are carried at cost less accumulated depreciation. Land is carried at historical cost. Depreciation is calculated on a straight-line basis over the estimated useful lives of the assets which generally ranges from three to thirty years. Capitalized software is amortized on a straight-line basis over its useful life, which generally ranges from three to seven years. Software expenditures, repair and maintenance costs that are considered general, administrative, or of a maintenance nature are expensed as incurred.
Mortgage Servicing Rights	Mortgage Servicing Rights We purchase and originate mortgage loans for sale to the secondary market and sell the loans on either a servicing-retained or servicing-released basis. If we retain the right to service the loan, an MSR is created at the time of sale which is recorded at fair value. We use an internal valuation model that utilizes an option-adjusted spread and other assumptions to determine the fair value of MSRs which include anticipated prepayment speeds (also known as the constant prepayment rate), product type (i.e., conventional, government, balloon), fixed or adjustable rate of interest, interest rate, term (i.e., 15 or 30 years), servicing costs per loan, discount rate and estimate of ancillary income such as late fees and prepayment fees. Management obtains third-party valuations of the MSR portfolio on a quarterly basis from independent valuation services to assess the reasonableness of the fair value calculated by our internal valuation model. Changes in the fair value of our mortgage servicing rights are reported on the Consolidated Statements of Operations in net return on mortgage servicing. For further information, see Note 10 - Mortgage Servicing Rights and Note 22 - Fair Value Measurements. We periodically enter into agreements to sell certain of our MSRs, which qualify as sales transactions. A transfer of servicing rights related to loans previously sold qualifies as a sale at the date on which title passes, if substantially all risks and rewards of ownership have irrevocably passed to the transferee and any protection provisions retained by the transferor are minor and can be reasonably estimated. In addition, if a sale is recognized and only minor protection provisions exist, a liability is accrued for the estimated obligation associated with those provisions.
Servicing Fee Income	Servicing Fee Income Servicing fee income, late fees and ancillary fees received on loans for which we own the MSR, are included in the net return on mortgage servicing asset line of the Consolidated Statements of Operations. The fees are based on a contractual percentage of the outstanding principal and are recorded as income when earned. Subservicing fees, which are included in loan administration income on the Consolidated Statements of Operations are based on a contractual monthly amount per loan including late fees and other ancillary income.
Derivatives	Derivatives We utilize derivative instruments to manage the fair value changes in our MSRs, interest rate lock commitments and LHFS portfolio which are exposed to price and interest rate risk, facilitate asset/liability management, minimize the variability of future cash flows on long-term debt, and to meet the needs of our customers. All derivatives are recognized on the Consolidated Statements of Financial Condition as other assets and liabilities, as applicable, at their estimated fair value. For those derivatives designated as qualified cash flow hedges, changes in the fair value of the derivatives, to the extent effective as a hedge, are recorded in accumulated other comprehensive income, net of income taxes, and reclassified into earnings concurrently with the earnings of the hedged item. For derivative instruments designated as qualified fair value hedges, which are used to hedge the exposure of fair value changes of an asset or liability attributable to a particular risk, the gain or loss on the derivative instrument, as well as the offsetting loss or gain on the hedged item attributable to the hedged risk, are recognized in current earnings during the period of the change in fair values. For all other derivatives, changes in the fair value of the derivative are recognized immediately in earnings. A majority of these derivatives are subject to master netting agreements and cleared through a Central Counterparty Clearing House, which mitigates non-performance risk with counterparties and enables us to settle activity on a net basis. We use interest rate swaps, swaptions, futures, and forward loan sale commitments to mitigate the impact of fluctuations in interest rates and interest rate volatility on the fair value of the MSRs. These derivatives are not designated as qualifying hedges. Accordingly, changes in their fair value are reflected in current period earnings under the net return on mortgage servicing asset. These derivatives are valued based on quoted prices for similar assets in an active market with inputs that are observable. We also enter into various derivative agreements with customers and correspondents in the form of interest-rate lock commitments and forward purchase contracts which are commitments to originate or purchase mortgage loans whereby the interest rate on the loan is determined prior to funding and the customers have locked into that interest rate. The derivatives are valued using internal models that utilize market interest rates and other unobservable inputs. Changes in the fair value of these commitments due to fluctuations in interest rates that are to be originated to our LHFS portfolio are economically hedged through the use of forward loan sale commitments of MBS. The gains and losses arising from this derivative activity are reflected in current period earnings under the net gain on loan sales. Interest rate lock commitments are valued using internal models with significant unobservable market parameters. Forward loan sale commitments are valued based on quoted prices for similar assets in an active market with inputs that are observable. At certain times we may also enter into various derivative agreements with correspondents in the form of forward purchase contracts at the time the correspondent customer enters into an interest-rate lock commitment. The derivatives are valued using internal models that utilize market interest rates and other unobservable inputs. We utilize interest rate swaps to hedge the forecasted cash flows from our underlying variable-rate FHLB advances and forecasted FHLB advances in qualifying cash flow hedge accounting relationships. Changes in the fair value of derivatives designated as cash flow hedges are recorded in other comprehensive income on the Consolidated Statement of Financial Condition and reclassified into interest expense concurrently with the interest expense on the debt. Interest rate swaps are valued based on quoted prices for similar assets in an active market with inputs that are observable. These hedges are evaluated for effectiveness using regression analysis at the time they are designated and throughout the hedge period. For forecasted FHLB advances being hedged, we evaluate the likelihood of the transaction occurring based on the current facts and circumstances each reporting period to ensure the hedge relationship still qualifies for hedge accounting. If we de-designate a hedge relationship or determine that an interest rate swap no longer qualifies for hedge accounting changes in fair value are no longer recorded in other comprehensive income. If the hedged item remains probable to occur, the effective amounts previously recorded in other comprehensive income are recognized in earnings over the remaining life of the hedged item as an adjustment to yield. We also utilize interest rate swaps to manage fair value changes of our fixed-rate FHLB advances in a qualifying fair value hedge accounting relationship. Changes in the fair value of derivatives designated as fair value hedges, as well as the change in fair value of the hedged item, are recognized in current period earnings. The corresponding adjustment is recorded as a basis adjustment to the hedged item and hedging instrument. Interest rate swaps are valued based on quoted prices for similar assets in an active market with inputs that are observable. These hedges are evaluated for effectiveness using regression analysis at the time they are designated and throughout the hedge period. If the Company determines an interest rate swap no longer qualifies for fair value hedge accounting or is de-designated, the hedged item will no longer be adjusted for changes in fair value and the amounts previously recorded as a basis adjustment are recognized in earnings over the remaining life of the hedged item as an adjustment to yield. If a previously hedged item is extinguished or sold, the remaining unamortized balance in other comprehensive income balance for prior cash flow hedges and the remaining basis adjustment of the hedged item for prior fair value hedges will be reclassified to current period earnings. To assist our customers in meeting their needs to manage interest rate risk, we enter into interest rate swap derivative contracts. To economically hedge this risk, we enter into offsetting derivative contracts to effectively eliminate the interest rate risk associated with these contracts.
Income Taxes	Income Taxes We evaluate two components of income tax expense: current and deferred. Current income tax expense represents our estimated taxes to be paid or refunded for the current period. Deferred taxes are recognized for the future tax consequences attributable to differences between the financial statement carrying amounts of existing assets and liabilities and their respective tax bases. DTAs and liabilities are measured using enacted tax rates that will apply to taxable income in the years in which those temporary differences are expected to be recovered or settled. The effect on DTAs and liabilities of a change in tax rates is recognized as income or expense in the period that includes the enactment date. We evaluate our DTAs to determine if, based on all available evidence, it is more likely than not that they will be realized. If it is determined that it is more likely than not that the deferred taxes will not be realized, we establish a valuation allowance. For further information, see Note 19 - Income Taxes.
Representation and Warranty Reserve	Representation and Warranty Reserve When we sell mortgage loans into the secondary mortgage market, we make customary representations and warranties to the purchasers about various characteristics of each loan, such as the manner of origination, the nature and extent of underwriting standards applied and the types of documentation being provided. For eligible loans sold to the Agencies after December 31, 2014, these representations and warranties generally expire after 36 months. Typically, all other representations and warranties are in place for the life of the loan. If a defect in the origination process is identified, we may be required to either repurchase the loan, pay a fee or indemnify the purchaser for losses it sustains on the loan. If there are no such defects, the Company has no liability to the purchaser for losses it may incur on such loan. Upon the sale of a loan, the Company recognizes a liability for that guarantee at its fair value as a reduction of our net gain on loan sales. Subsequent to the sale, the liability is re-measured on an ongoing basis based upon an estimate of probable future losses. In each case, these estimates are based on our most recent data including loss severity on repurchased and indemnified loans, repurchase requests and other factors. Changes to our previous estimates are recorded in the representation and warranty (provision) benefit in the Consolidated Statements of Operations.
Advertising Costs	Advertising Costs Advertising costs are expensed in the period they are incurred and are included as part of other noninterest expense in the Consolidated Statements of Operations.
Stock-based Compensation	Stock-Based Compensation All share-based payments to employees, including grants of employee stock options and restricted stock units, are classified as equity with expenses being recognized in compensation and benefits in the Consolidated Statements of Operations based on their fair values. The amount of compensation is measured at the grant date and is expensed over the requisite service period, which is normally the vesting period, and for the year ended December 31, 2017 , any forfeitures were recognized as they occurred. In addition to share-based payments to employees, the discount provided to employees through the Employee Stock Purchase Plan is also recognized as stock-based compensation.
Department of Justice (DOJ) Litigation Settlement	Department of Justice Litigation Settlement The executed settlement agreement with the DOJ representing the obligation to make future additional payments establishes a legally enforceable contract with a stipulated payment plan that meets the definition of a financial liability. We have elected the fair value option to account for this financial liability included in other liabilities on the Consolidated Financial Statements. For additional information on the valuation of the DOJ litigation settlement, see Note 22 - Fair Value Measurements.
Recently Issued Accounting Pronouncements	Recently Issued Accounting Pronouncements Adoption of New Accounting Standards We adopted the following accounting standard updates (ASU) during 2017 , none of which had a material impact to our financial statements: Standard Description Effective Date ASU 2016-17 Consolidation (Topic 810): Interests Held Through Related Parties That are Under Common Control January 1, 2017 ASU 2016-09 Compensation - Stock Compensation (Topic 718): Improvements to Employee Share-Based Payment Accounting January 1, 2017 ASU 2016-07 Investments - Equity Method and Joint Ventures (Topic 323): Simplifying the Transition to the Equity Method of Accounting January 1, 2017 ASU 2016-06 Derivatives and Hedging (Topic 815): Contingent Put and Call Options in Debt Instruments January 1, 2017 ASU 2016-05 Derivatives and Hedging (Topic 815): Effect of Derivative Contract Novations on Existing Hedge Relationships January 1, 2017 Accounting Standards Issued But Not Yet Adopted The following ASUs have been issued and are expected to result in a significant change to our significant accounting policies and/or have a significant financial impact: Derivatives and Hedging - In August 2017, the FASB issued ASU 2017-12, Derivatives and Hedging (Topic 815): Targeted Improvements to Accounting for Hedging Activities. The amendments were designed to more closely align hedge accounting requirements with users’ risk management strategies. ASU 2017-12 is effective for fiscal years beginning after December 15, 2018 and early adoption is permitted. The Company has early adopted this ASU during the first quarter of 2018. The guidance provides a broader range of hedge accounting opportunities and simplifies documentation requirements for our existing cash flow hedge relationships. In conjunction with adoption of this ASU, the Company elected to transfer $ 144 million of investment securities from HTM to AFS during the first quarter of 2018, as permitted by the standard. Credit Losses - In June 2016, the FASB issued ASU 2016-13, Financial Instruments - Credit Losses (Topic 326). The ASU alters the current method for recognizing credit losses. Currently, an institution uses the incurred loss method, whereas the new guidance requires financial assets to be presented at the net amount expected to be collected (i.e., net of expected credit losses). The measurement of expected credit losses should be based on relevant information about past events, including historical experience, current conditions, and reasonable and supportable forecasts that affect the collectability of the reported amount. ASU 2016-13 is effective for fiscal years beginning after December 15, 2019. We have established an internal steering committee to lead the implementation efforts. The steering committee is in the process of evaluating control and process framework, data, model, and resource requirements and areas where modifications will be required. We are currently evaluating the impact adoption of the guidance will have on our Consolidated Financial Statements, and highlight that any impact will be contingent upon the underlying characteristics of the affected portfolio and macroeconomic and internal forecasts at adoption date. Leases - In February 2016, the FASB issued ASU 2016-02, Leases (Topic 842): Section A - Leases: Amendments to the FASB Accounting Standards Codification, Section B - Conforming Amendments Related to Leases: Amendment to the FASB Accounting Standards Codification, Section C - Background Information and Basis For Conclusions. Lessees will need to recognize substantially all leases on their balance sheet as a right-of-use asset and a lease liability. For income statement purposes, the FASB retained a dual model, requiring leases to be classified as either operating or finance. Classification will be based on criteria that are largely similar to those applied in current lease accounting. ASU 2016-02 is effective retrospectively for fiscal years beginning after December 15, 2018 and early adoption is permitted. The guidance in ASU 2016-02 supersedes Topic 840, Leases. Upon adoption and implementation, we expect to gross up assets and liabilities due to the recognition of lease liabilities and right-of-use assets associated with the underlying lease contracts. While we do not expect the adoption of the guidance to have a material impact on our Consolidated Statements of Operations given our current inventory of leases, review is ongoing and we will continue to evaluate the impact to the Consolidated Statements of Financial Condition and to capital. Revenue from Contracts with Customers - In May 2014, FASB issued ASU No. 2014-09, "Revenue from Contracts with Customers (Topic 606)." Under the amended guidance, an entity should recognize revenue to depict the transfer of promised goods or services to customers in an amount that reflects the consideration in exchange for those goods or services. The FASB continued to release new accounting guidance related to the adoption of this standard which was also evaluated during the implementation process. We will implement the revenue recognition guidance in the first quarter of 2018 utilizing the cumulative-effect approach at the date of adoption with no restatement of comparative periods presented. Lease contracts and financial instruments, which include loans and securities, are excluded from the scope of this standard. We have determined the amount of in scope revenue, which primarily relates to deposit account fees, asset management fees and certain commissions, to be less than 3 percent of total revenue. The recognition of revenue for in scope items is not anticipated to have a material impact on the financial statements or the associated disclosures. The following ASUs have been issued and are not expected to have a material impact on our Consolidated Financial Statements and/or significant accounting policies: Standard Description Effective Date ASU 2018-02 Income Statement-Reporting Comprehensive Income (Topic 220); Reclassification of Certain Tax Effects from Accumulated Other Comprehensive Income January 1, 2019 ASU 2017-11 Earnings Per Share (Topic 260); Distinguishing Liabilities from Equity (Topic 480); Derivatives and Hedging (Topic 815): (Part I) Accounting for Certain Financial Instruments with Down Round Features, (Part II) Replacement of the Indefinite Deferral for Mandatorily Redeemable Financial Instruments of Certain Nonpublic Entities and Certain Mandatorily Redeemable Non-controlling Interests with a Scope. January 1, 2019 ASU 2017-10 Service Concession Arrangements (Topic 853): Determining the Customer of the Operation Services (a consensus of the FASB Emerging Issues Task Force) January 1, 2018 ASU 2017-09 Update 2017-09—Compensation—Stock Compensation (Topic 718): Scope of Modification Accounting January 1, 2018 ASU 2017-08 Receivables - Nonrefundable Fees and Other Costs (Subtopic 310-20): Premium Amortization on Purchased Callable Debt Securities January 1, 2019 ASU 2017-07 Compensation - Retirement Benefits (Topic 715): Improving the Presentation of Net Periodic Pension Cost and Net Periodic Postretirement Benefit Cost January 1, 2018 ASU 2017-06 Plan Accounting - Defined Benefit Pension Plans (Topic 960), Defined Contribution Pension Plans (Topic 962), Health and Welfare Benefit Plans (Topic 965): Employee Benefit Plan Master Trust Reporting January 1, 2019 ASU 2017-05 Other Income - Gains and Losses from the De-recognition of Non-financial Assets (Subtopic 610-20): Clarifying the Scope of Asset De-recognition Guidance and Accounting for Partial Sales of Non-financial Assets January 1, 2018 ASU 2017-04 Intangibles - Goodwill and Other (Topic 350): Simplifying the Test for Goodwill Impairment January 1, 2020 ASU 2017-01 Business Combinations (Topic 805): Clarifying the Definition of a Business January 1, 2018 ASU 2016-18 Statement of Cash Flows (Topic 230): Restricted Cash January 1, 2018 ASU 2016-16 Income Taxes (Topic 740): Intra-Entity Transfers of Assets Other Than Inventory January 1, 2018 ASU 2016-15 Statement of Cash Flows (Topic 230): Classification of Certain Cash Receipts and Cash Payments January 1, 2018 ASU 2016-04 Liabilities - Extinguishment of Liabilities (Subtopic 504-20): Recognition of Breakage for Certain Prepaid Stored-Value Products January 1, 2018 ASU 2016-01 Financial Instruments - Overall (Subtopic 825-10): Recognition and Measurement of Financial Assets and Financial Liabilities January 1, 2018
Fair Value Measurements	Fair Value Measurements We utilize fair value measurements to record or disclose the fair value on certain assets and liabilities. Fair value is defined as the price that would be received to sell an asset or paid to transfer a liability through an orderly transaction between market participants at the measurement date. The determination of fair values of financial instruments often requires the use of estimates. In cases where quoted market values in an active market are not available, we use present value techniques and other valuation methods to estimate the fair values of our financial instruments. These valuation models rely on market-based parameters when available, such as interest rate yield curves or credit spreads. Unobservable inputs may be based on management's judgment, assumptions and estimates related to credit quality, our future earnings, interest rates and other relevant inputs. These valuation methods require considerable judgment and the resulting estimates of fair value can be significantly affected by the assumptions made and methods used. 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 we 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 our 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.

Description of Business, Basi34

Description of Business, Basis of Presentation, and Summary of Significant Accounting Policies (Tables)	12 Months Ended
	Dec. 31, 2017
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Schedule of New Accounting Pronouncements and Changes in Accounting Principles	We adopted the following accounting standard updates (ASU) during 2017 , none of which had a material impact to our financial statements: Standard Description Effective Date ASU 2016-17 Consolidation (Topic 810): Interests Held Through Related Parties That are Under Common Control January 1, 2017 ASU 2016-09 Compensation - Stock Compensation (Topic 718): Improvements to Employee Share-Based Payment Accounting January 1, 2017 ASU 2016-07 Investments - Equity Method and Joint Ventures (Topic 323): Simplifying the Transition to the Equity Method of Accounting January 1, 2017 ASU 2016-06 Derivatives and Hedging (Topic 815): Contingent Put and Call Options in Debt Instruments January 1, 2017 ASU 2016-05 Derivatives and Hedging (Topic 815): Effect of Derivative Contract Novations on Existing Hedge Relationships January 1, 2017 The following ASUs have been issued and are not expected to have a material impact on our Consolidated Financial Statements and/or significant accounting policies: Standard Description Effective Date ASU 2018-02 Income Statement-Reporting Comprehensive Income (Topic 220); Reclassification of Certain Tax Effects from Accumulated Other Comprehensive Income January 1, 2019 ASU 2017-11 Earnings Per Share (Topic 260); Distinguishing Liabilities from Equity (Topic 480); Derivatives and Hedging (Topic 815): (Part I) Accounting for Certain Financial Instruments with Down Round Features, (Part II) Replacement of the Indefinite Deferral for Mandatorily Redeemable Financial Instruments of Certain Nonpublic Entities and Certain Mandatorily Redeemable Non-controlling Interests with a Scope. January 1, 2019 ASU 2017-10 Service Concession Arrangements (Topic 853): Determining the Customer of the Operation Services (a consensus of the FASB Emerging Issues Task Force) January 1, 2018 ASU 2017-09 Update 2017-09—Compensation—Stock Compensation (Topic 718): Scope of Modification Accounting January 1, 2018 ASU 2017-08 Receivables - Nonrefundable Fees and Other Costs (Subtopic 310-20): Premium Amortization on Purchased Callable Debt Securities January 1, 2019 ASU 2017-07 Compensation - Retirement Benefits (Topic 715): Improving the Presentation of Net Periodic Pension Cost and Net Periodic Postretirement Benefit Cost January 1, 2018 ASU 2017-06 Plan Accounting - Defined Benefit Pension Plans (Topic 960), Defined Contribution Pension Plans (Topic 962), Health and Welfare Benefit Plans (Topic 965): Employee Benefit Plan Master Trust Reporting January 1, 2019 ASU 2017-05 Other Income - Gains and Losses from the De-recognition of Non-financial Assets (Subtopic 610-20): Clarifying the Scope of Asset De-recognition Guidance and Accounting for Partial Sales of Non-financial Assets January 1, 2018 ASU 2017-04 Intangibles - Goodwill and Other (Topic 350): Simplifying the Test for Goodwill Impairment January 1, 2020 ASU 2017-01 Business Combinations (Topic 805): Clarifying the Definition of a Business January 1, 2018 ASU 2016-18 Statement of Cash Flows (Topic 230): Restricted Cash January 1, 2018 ASU 2016-16 Income Taxes (Topic 740): Intra-Entity Transfers of Assets Other Than Inventory January 1, 2018 ASU 2016-15 Statement of Cash Flows (Topic 230): Classification of Certain Cash Receipts and Cash Payments January 1, 2018 ASU 2016-04 Liabilities - Extinguishment of Liabilities (Subtopic 504-20): Recognition of Breakage for Certain Prepaid Stored-Value Products January 1, 2018 ASU 2016-01 Financial Instruments - Overall (Subtopic 825-10): Recognition and Measurement of Financial Assets and Financial Liabilities January 1, 2018

Investment Securities (Tables)

Investment Securities (Tables)	12 Months Ended
	Dec. 31, 2017
Investments, Debt and Equity Securities [Abstract]
Schedule of Held-to-maturity and Available-for-sale Securities	Amortized Cost Gross Unrealized Gross Unrealized Fair Value (Dollars in millions) December 31, 2017 Available-for-sale securities Agency - Commercial $ 1,004 $ — $ (17 ) $ 987 Agency - Residential 811 — (17 ) 794 Municipal obligations 35 — (1 ) 34 Corporate debt obligations 37 1 — 38 Total available-for-sale securities (1) $ 1,887 $ 1 $ (35 ) $ 1,853 Held-to-maturity securities Agency - Commercial $ 526 $ — $ (9 ) $ 517 Agency - Residential 413 — (6 ) 407 Total held-to-maturity securities (1) $ 939 $ — $ (15 ) $ 924 December 31, 2016 Available-for-sale securities Agency - Commercial $ 551 $ 2 $ (5 ) $ 548 Agency - Residential 913 1 (16 ) 898 Municipal obligations 34 — — 34 Total available-for-sale securities (1) $ 1,498 $ 3 $ (21 ) $ 1,480 Held-to-maturity securities Agency - Commercial $ 595 $ — $ (6 ) $ 589 Agency - Residential 498 1 (4 ) 495 Total held-to-maturity securities (1) $ 1,093 $ 1 $ (10 ) $ 1,084 (1) There were no securities of a single issuer, which are not governmental or government-sponsored, that exceeded 10 percent of stockholders’ equity at December 31, 2017 or December 31, 2016 .
Available-for-sale Securities, Continuous Unrealized Loss Position, Fair Value	The following table summarizes, by duration, the unrealized loss positions on investment securities: Unrealized Loss Position with Duration 12 Months and Over Unrealized Loss Position with Duration Under 12 Months Fair Value Number of Securities Unrealized Loss Fair Value Number of Securities Unrealized Loss (Dollars in millions) December 31, 2017 Available-for-sale securities Agency - Commercial $ 218 20 $ (7 ) $ 744 41 $ (11 ) Agency - Residential 452 36 (14 ) 263 33 (3 ) Municipal obligations 6 3 — 22 9 — Corporate debt obligations — — — 3 1 — Held-to-maturity securities Agency - Commercial $ 348 25 $ (8 ) $ 99 8 $ (1 ) Agency - Residential 111 16 (3 ) 293 43 (3 ) December 31, 2016 Available-for-sale securities Agency - Commercial $ 6 1 $ — $ 345 29 $ (5 ) Agency - Residential — — — 748 55 (16 ) Municipal obligations — — — 17 8 — Held-to-maturity securities Agency - Commercial $ — — $ — $ 528 34 $ (6 ) Agency - Residential — — — 385 43 (4 )
Schedule of Available-for-sale Securities, by Contractual Maturity Date	The following shows the amortized cost and estimated fair value of securities by contractual maturity: Investment Securities Available-for-Sale Investment Securities Held-to-Maturity Amortized Cost Fair Value Weighted-Average Yield Amortized Cost Fair Value Weighted-Average Yield (Dollars in millions) December 31, 2017 Due after one year through five years 10 10 2.58 % 35 35 2.48 % Due after five years through 10 years 45 46 4.85 % 26 26 2.52 % Due after 10 years 1,832 1,797 2.40 % 878 863 2.44 % Total $ 1,887 $ 1,853 $ 939 $ 924

Loans Held-for-Investment (Tabl

Loans Held-for-Investment (Tables)	12 Months Ended
	Dec. 31, 2017
Receivables [Abstract]
Schedule of Loans Held-for-investment	The following table presents our Loans-held-for-investment: December 31, 2017 December 31, 2016 (Dollars in millions) Consumer loans Residential first mortgage $ 2,754 $ 2,327 Home Equity 664 443 Other 25 28 Total consumer loans 3,443 2,798 Commercial loans Commercial real estate (1) 1,932 1,261 Commercial and industrial 1,196 769 Warehouse lending 1,142 1,237 Total commercial loans 4,270 3,267 Total loans held-for-investment $ 7,713 $ 6,065 (1) Includes NBV of $307 million and $244 million of owner occupied commercial real estate loans at December 31, 2017 and December 31, 2016 , respectively.
Allowance for Loan Losses	The following table presents changes in ALLL, by class of loan: Residential First Mortgage (1) Home Equity Other Consumer Commercial Real Estate Commercial and Industrial Warehouse Lending Total (Dollars in millions) Year Ended December 31, 2017 Beginning balance ALLL $ 65 $ 24 $ 1 $ 28 $ 17 $ 7 $ 142 Charge-offs (2) (8 ) (3 ) (2 ) (1 ) — — (14 ) Recoveries 1 2 1 1 1 — 6 Provision (benefit) (11 ) (1 ) 1 17 1 (1 ) 6 Ending balance ALLL $ 47 $ 22 $ 1 $ 45 $ 19 $ 6 $ 140 Year Ended December 31, 2016 Beginning balance ALLL $ 116 $ 32 $ 2 $ 18 $ 13 $ 6 $ 187 Charge-offs (2) (29 ) (4 ) (3 ) — — — (36 ) Recoveries 2 — 3 1 — — 6 Provision (benefit) (3) (24 ) (4 ) (1 ) 9 4 1 (15 ) Ending balance ALLL $ 65 $ 24 $ 1 $ 28 $ 17 $ 7 $ 142 Year Ended December 31, 2015 Beginning balance ALLL $ 234 $ 31 $ 1 $ 17 $ 11 $ 3 $ 297 Charge-offs (87 ) (7 ) (4 ) — (3 ) — (101 ) Recoveries 3 2 3 2 — — 10 Provision (benefit) (34 ) 6 2 (1 ) 5 3 (19 ) Ending balance ALLL $ 116 $ 32 $ 2 $ 18 $ 13 $ 6 $ 187 (1) Includes allowance and charge-offs related to loans with government guarantees. (2) Includes charge-offs of $1 million , $8 million and $69 million related to the transfer and subsequent sale of loans during the years ended December 31, 2017 , December 31, 2016 and December 31, 2015 , respectively. Also includes charge-offs related to loans with government guarantees of $4 million , $14 million , and $3 million during the years ended December 31, 2017 , December 31, 2016 and December 31, 2015 , respectively. (3) Does not include $7 million for provision expense for loan losses recorded in the Consolidated Statements of Operations to reserve for repossessed loans with government guarantees at December 31, 2016 . The following table sets forth the method of evaluation, by class of loan: Residential First Mortgage (1) Home Equity Other Consumer Commercial Real Estate Commercial and Industrial Warehouse Lending Total (Dollars in millions) December 31, 2017 Loans held-for-investment (2) Individually evaluated $ 34 $ 27 $ — $ — $ — $ — $ 61 Collectively evaluated 2,712 633 25 1,932 1,196 1,142 $ 7,640 Total loans $ 2,746 $ 660 $ 25 $ 1,932 $ 1,196 $ 1,142 $ 7,701 Allowance for loan losses (2) Individually evaluated $ 6 $ 10 $ — $ — $ — $ — $ 16 Collectively evaluated 41 12 1 45 19 6 124 Total allowance for loan losses $ 47 $ 22 $ 1 $ 45 $ 19 $ 6 $ 140 December 31, 2016 Loans held-for-investment (2) Individually evaluated $ 46 $ 29 $ — $ — $ — $ — $ 75 Collectively evaluated 2,274 349 28 1,261 769 1,237 $ 5,918 Total loans $ 2,320 $ 378 $ 28 $ 1,261 $ 769 $ 1,237 $ 5,993 Allowance for loan losses (2) Individually evaluated $ 5 $ 8 $ — $ — $ — $ — $ 13 Collectively evaluated 60 16 1 28 17 7 $ 129 Total allowance for loan losses $ 65 $ 24 $ 1 $ 28 $ 17 $ 7 $ 142 (1) Includes allowance related to loans with government guarantees. (2) Excludes loans carried under the fair value option.
Past Due Loans	The following table sets forth the LHFI aging analysis of past due and current loans (for further information on our policy past due and impaired loans, see Note 1 - Description of Business, Basis of Presentation, and Summary of Significant Accounting Policies): 30-59 Days Past Due 60-89 Days Past Due 90 Days or Greater Past Due (1) Total Past Due Current Total LHFI (Dollars in millions) December 31, 2017 Consumer loans Residential first mortgage $ 2 $ 2 $ 23 $ 27 $ 2,727 $ 2,754 Home equity 1 — 6 7 657 664 Other — — — — 25 25 Total consumer loans 3 2 29 34 3,409 3,443 Commercial loans Commercial real estate — — — — 1,932 1,932 Commercial and industrial — — — — 1,196 1,196 Warehouse lending — — — — 1,142 1,142 Total commercial loans — — — — 4,270 4,270 Total loans (2) $ 3 $ 2 $ 29 $ 34 $ 7,679 $ 7,713 December 31, 2016 Consumer loans Residential first mortgage $ 6 $ — $ 29 $ 35 $ 2,292 $ 2,327 Home equity 1 2 11 14 429 443 Other 1 — — 1 27 28 Total consumer loans 8 2 40 50 2,748 2,798 Commercial loans Commercial real estate — — — — 1,261 1,261 Commercial and industrial — — — — 769 769 Warehouse lending — — — — 1,237 1,237 Total commercial loans — — — — 3,267 3,267 Total loans (2) $ 8 $ 2 $ 40 $ 50 $ 6,015 $ 6,065 (1) Includes less than 90 days past due performing loans which are deemed nonaccrual. Interest is not being accrued on these loans. (2) Includes $4 million and $13 million of loans 90 days or greater past due accounted for under the fair value option at December 31, 2017 and 2016 , respectively.
Troubled Debt Restructurings	The following table provides a summary of newly modified TDRs: New TDRs Number of Accounts Pre-Modification Unpaid Principal Balance Post-Modification Unpaid Principal Balance (1) Increase (Decrease) in Allowance at Modification (Dollars in millions) Year Ended December 31, 2017 Residential first mortgages 16 $ 4 $ 4 $ — Home equity (2)(3) 82 6 5 (1 ) Total TDR loans 98 $ 10 $ 9 $ (1 ) Year Ended December 31, 2016 Residential first mortgages 23 $ 4 $ 5 $ — Home equity (2)(3) 143 9 8 — Commercial & Industrial 1 2 1 — Total TDR loans 167 $ 15 $ 14 $ — Year Ended December 31, 2015 Residential first mortgages 325 $ 81 $ 80 $ (2 ) Home equity (2)(3) 370 21 18 — Other consumer 3 — — — Total TDR loans 698 $ 102 $ 98 $ (2 ) (1) Post-modification balances include past due amounts that are capitalized at modification date. (2) Home equity post-modification UPB reflects write downs. (3) Includes loans carried at fair value option. The following table provides a summary of newly modified TDRs in the past 12 months that have been subsequently defaulted during the years ended December 31, 2017 , 2016 and 2015 . The UPB associated with the TDRs in each portfolio and in the aggregate was less than $1 million for all years presented. There was no increase or decrease in the allowance associated with these TDRs at subsequent default. All TDRs within consumer and commercial loan portfolios are considered subsequently defaulted when greater than 90 days past due. Subsequent default is defined as a payment re-defaulted within 12 months of the restructuring date: Years Ended December 31, 2017 2016 2015 Number of Accounts Residential first mortgages 1 1 3 Home equity (1) 0 7 5 Total TDR loans 1 8 8 (1) HELOC post-modification UPB reflects write downs. The following table provides a summary of TDRs by type and performing status: TDRs Performing Nonperforming Total (Dollars in millions) December 31, 2017 Consumer loans (1) Residential first mortgage $ 19 $ 12 $ 31 Home equity 24 4 28 Total TDRs (2) $ 43 $ 16 $ 59 December 31, 2016 Consumer loans (1) Residential first mortgage $ 22 $ 11 $ 33 Home equity 45 7 52 Total TDRs (2) $ 67 $ 18 $ 85 (1) The ALLL on consumer TDR loans totaled $13 million and $9 million at December 31, 2017 and 2016 , respectively. (2) Includes $3 million and $25 million of TDR loans accounted for under the fair value option at December 31, 2017 and 2016 , respectively.
Impaired Loans	The following table presents individually evaluated impaired loans and the associated allowance: December 31, 2017 December 31, 2016 Recorded Investment Net Unpaid Principal Balance Related Allowance Recorded Investment Net Unpaid Principal Balance Related Allowance (Dollars in millions) With no related allowance recorded Consumer loans Residential first mortgage $ 11 $ 12 $ — $ 6 $ 6 $ — Total loans with no related allowance recorded $ 11 $ 12 $ — $ 6 $ 6 $ — With an allowance recorded Consumer loans Residential first mortgage $ 22 $ 22 $ 6 $ 40 $ 40 $ 5 Home equity 24 27 10 29 29 8 Total loans with an allowance recorded $ 46 $ 49 $ 16 $ 69 $ 69 $ 13 Total impaired loans Consumer loans Residential first mortgage $ 33 $ 34 $ 6 $ 46 $ 46 $ 5 Home equity 24 27 10 29 29 8 Total impaired loans $ 57 $ 61 $ 16 $ 75 $ 75 $ 13 The following table presents average impaired loans and the interest income recognized: For the Years Ended December 31, 2017 2016 2015 Average Recorded Investment Interest Income Recognized Average Recorded Investment Interest Income Recognized Average Recorded Investment Interest Income Recognized (Dollars in millions) Consumer loans Residential first mortgage $ 38 $ 1 $ 52 $ 1 $ 150 $ 5 Home equity 28 1 30 2 39 — Commercial loans Commercial and industrial — — 2 — 2 — Total impaired loans $ 66 $ 2 $ 84 $ 3 $ 191 $ 5
Loan Credit Quality Indicators	December 31, 2017 Pass Watch Special Mention Substandard Total Loans (Dollars in millions) Consumer Loans Residential First Mortgage $ 2,706 $ 23 $ — $ 25 $ 2,754 Home equity 633 25 — 6 664 Other Consumer 25 — — — 25 Total Consumer Loans $ 3,364 $ 48 $ — $ 31 $ 3,443 Commercial Loans Commercial Real Estate $ 1,902 $ 23 $ 7 $ — $ 1,932 Commercial and Industrial 1,135 32 24 5 1,196 Warehouse 1,014 128 — — 1,142 Total Commercial Loans $ 4,051 $ 183 $ 31 $ 5 $ 4,270 December 31, 2016 Pass Watch Special Mention Substandard Total Loans (Dollars in millions) Consumer Loans Residential First Mortgage $ 2,273 $ 23 $ — $ 31 $ 2,327 Home equity 386 46 — 11 443 Other Consumer 28 — — — 28 Total Consumer Loans $ 2,687 $ 69 $ — $ 42 $ 2,798 Commercial Loans Commercial Real Estate $ 1,225 $ 27 $ 3 $ 6 $ 1,261 Commercial and Industrial 678 59 21 11 769 Warehouse 1,168 16 53 — 1,237 Total Commercial Loans $ 3,071 $ 102 $ 77 $ 17 $ 3,267

Repossessed Assets (Tables)

Repossessed Assets (Tables)	12 Months Ended
	Dec. 31, 2017
Repossessed Assets [Abstract]
Schedule of Repossessed Assets	Repossessed assets include the following: December 31, 2017 2016 (Dollars in millions) One-to-four family properties $ 5 $ 11 Commercial properties 3 3 Total repossessed assets $ 8 $ 14
Schedule of Activity in Repossessed Assets	The following schedule provides the activity for repossessed assets: For the Years Ended December 31, 2017 2016 2015 (Dollars in millions) Beginning balance $ 14 $ 17 $ 19 Additions, net 18 19 29 Disposals (14 ) (19 ) (24 ) Net (write down) gain on disposal (9 ) (2 ) — Transfers out (1 ) (1 ) (7 ) Ending balance $ 8 $ 14 $ 17

Premises and Equipment (Tables)

Premises and Equipment (Tables)	12 Months Ended
	Dec. 31, 2017
Property, Plant and Equipment [Abstract]
Premises and Equipment	The following presents our premises and equipment balances and estimated useful lives: Estimated December 31, 2017 2016 (Dollars in millions) Land — $ 61 $ 59 Office buildings and improvements 15 — 31.5 years 159 153 Computer hardware and software 3 — 7 years 300 256 Furniture, fixtures and equipment 5 — 7 years 63 61 Leased equipment 3 — 10 years 40 4 Total 623 533 Less accumulated depreciation (293 ) (258 ) Premises and equipment, net $ 330 $ 275
Schedule of Future Minimum Lease Payments for Operating Leases	The following outlines our minimum contractual lease obligations: December 31, 2017 (Dollars in millions) 2018 $ 8 2019 7 2020 5 2021 3 2022 1 Thereafter 2 Total $ 26

Mortgage Servicing Rights (Tabl

Mortgage Servicing Rights (Tables)	12 Months Ended
	Dec. 31, 2017
Transfers and Servicing [Abstract]
Schedule of Servicing Assets at Fair Value	Changes in the fair value of residential first mortgage MSRs were as follows: For the Years Ended December 31, 2017 2016 2015 (Dollars in millions) Balance at beginning of period $ 335 $ 296 $ 258 Additions from loans sold with servicing retained 288 228 260 Reductions from sales (310 ) (84 ) (176 ) Changes in fair value due to (1) : Decrease in MSR value due to pay-offs, pay-downs, and run-off (22 ) (62 ) (43 ) Changes in estimates of fair value (2) — (43 ) (3 ) Fair value of MSRs at end of period $ 291 $ 335 $ 296 (1) Changes in fair value are included within net (loss) return on mortgage servicing rights on the Consolidated Statements of Operations. (2) Represents estimated MSR value change resulting primarily from market-driven changes.
Schedule of Sensitivity Analysis of Fair Value	The following table summarizes the hypothetical effect on the fair value of servicing rights using adverse changes of 10 percent and 20 percent to the weighted-average of certain significant assumptions used in valuing these assets: December 31, 2017 December 31, 2016 Fair value impact due to Fair value impact due to Actual 10% adverse change 20% adverse change Actual 10% adverse change 20% adverse change (Dollars in millions) Option adjusted spread 6.29 % $ 286 $ 282 7.78 % $ 326 $ 318 Constant prepayment rate 9.93 % 283 277 16.68 % 322 311 Weighted average cost to service per loan $ 73.00 288 286 $ 68.18 330 326
Schedule of Servicing Assets at Fair Value, Servicing Fees	The following table summarizes income and fees associated with contractual servicing rights: For the Years Ended December 31, 2017 2016 2015 (Dollars in millions) Net return (loss) on mortgage servicing rights Servicing fees, ancillary income and late fees (1) $ 60 $ 81 $ 69 Changes in fair value (2) (22 ) (109 ) (44 ) Gain (loss) on MSR derivatives (3) (8 ) — 5 Net transaction costs (8 ) 2 (2 ) Total (loss) return included in net return on mortgage servicing rights $ 22 $ (26 ) $ 28 (1) Servicing fees are recorded on the accrual basis. Ancillary income and late fees are recorded on a cash basis. (2) Includes a $4 million loss recorded to a payoff reserve during the year ended December 31, 2016 and $2 million gain related to the sale of MSRs during the year ended December 31, 2015 . (3) Changes in the derivatives utilized as economic hedges to offset changes in fair value of the MSRs. The following table summarizes income and fees associated with our mortgage loans subserviced: For the Year Ended December 31, 2017 2016 2015 (Dollars in millions) Loan administration income on mortgage loans subserviced Servicing fees, ancillary income and late fees (1) $ 35 $ 29 $ 33 Other servicing charges (14 ) (11 ) (7 ) Total income on mortgage loans subserviced, included in loan administration $ 21 $ 18 $ 26 (1) Servicing fees are recorded on the accrual basis. Ancillary income and late fees are recorded on cash basis.

Derivative Financial Instrume40

Derivative Financial Instruments (Tables)	12 Months Ended
	Dec. 31, 2017
Derivative Instruments and Hedging Activities Disclosure [Abstract]
Schedule of Derivative Instruments	The following table presents the notional amount, estimated fair value and maturity of our derivative financial instruments: December 31, 2017 (1) Notional Amount Fair Value (2) Expiration Dates (Dollars in millions) Derivatives designated as hedging instruments: Liabilities Interest rate swaps on FHLB advances $ 830 $ 1 2023-2026 Derivatives not designated as hedging instruments: Assets Futures $ 1,597 $ — 2018-2022 Mortgage-backed securities forwards 2,646 4 2018 Rate lock commitments 3,629 24 2018 Interest rate swaps and swaptions 1,441 11 2018-2048 Total derivative assets $ 9,313 $ 39 Liabilities Futures $ 209 $ — 2018-2021 Mortgage-backed securities forwards 3,197 6 2018 Rate lock commitments 214 — 2018 Interest rate swaps 617 4 2018-2027 Total derivative liabilities $ 4,237 $ 10 December 31, 2016 Notional Amount Fair Value (2) Expiration Dates (Dollars in millions) Derivatives designated as hedging instruments: Assets Interest rate swaps on FHLB advances $ 600 $ 20 2023-2026 Liabilities Interest rate swaps on FHLB advances $ 230 $ 1 2025-2026 Derivatives not designated as hedging instruments: Assets Futures $ 4,621 $ 2 2017-2020 Mortgage-backed securities forwards 3,776 43 2017 Rate lock commitments 3,517 24 2017 Interest rate swaps and swaptions 2,231 35 2017-2033 Total derivative assets $ 14,145 $ 104 Liabilities Futures $ 134 $ — 2017 Mortgage-backed securities forwards 1,893 11 2017 Rate lock commitments 598 6 2017 Interest rate swaps 1,129 37 2017-2047 Total derivative liabilities $ 3,754 $ 54 (1) At December 31, 2017 , variation margin pledged to or received from a Central Counterparty Clearing House to cover the prior day’s fair value of open positions is considered settlement of the derivative position for accounting purposes. At December 31, 2016 , variation margin was not recognized as settlement. (2) Derivative assets and liabilities are included in other assets and other liabilities on the Consolidated Statements of Financial Condition, respectively.
Schedule of Derivative Instruments Subject to Master Netting Arrangement	The following tables present the derivatives subject to a master netting arrangement, including the cash pledged as collateral: Gross Amounts Netted in the Statement of Financial Position Net Amount Presented in the Statement of Financial Position Gross Amounts Not Offset in the Statement of Financial Position Gross Amount Financial Instruments Cash Collateral (Dollars in millions) December 31, 2017 Derivatives designated as hedging instruments: Liabilities Interest rate swaps on FHLB advances (1) $ 1 $ — $ 1 $ — $ 17 Derivatives not designated as hedging instruments: Assets Mortgage-backed securities forwards $ 4 $ — $ 4 $ — $ 8 Interest rate swaps and swaptions (1) 11 — 11 — 10 Total derivative assets $ 15 $ — $ 15 $ — $ 18 Liabilities Futures $ — $ — $ — $ — $ 2 Mortgage-backed securities forwards 6 — 6 — 2 Interest rate swaps (1) 4 — 4 — 5 Total derivative liabilities $ 10 $ — $ 10 $ — $ 9 December 31, 2016 Derivatives designated as hedging instruments: Assets Interest rate swaps on FHLB advances (1) $ 20 $ 1 $ 19 $ — $ — Liabilities Interest rate swaps on FHLB advances (1) $ 1 $ 1 $ — $ — $ 33 Derivatives not designated as hedging instruments: Assets Futures $ 2 $ — $ 2 $ — $ — Mortgage-backed securities forwards 43 — 43 — 44 Interest rate swaps and swaptions (1) 35 — 35 — 30 Total derivative assets $ 80 $ — $ 80 $ — $ 74 Liabilities Futures $ — $ — $ — $ — $ 1 Mortgage-backed securities forwards 11 — 11 — — Interest rate swaps (1) 37 — 37 — 20 Total derivative liabilities $ 48 $ — $ 48 $ — $ 21 (1) At December 31, 2017 , variation margin pledged to or received from a Central Counterparty Clearing House to cover the prior day’s fair value of open positions is considered settlement of the derivative position for accounting purposes. At December 31, 2016 , variation margin was not recognized as settlement and we had an additional $15 million in variation margin in excess of the amounts disclosed above.
Schedule of Changes in Fair Value of Derivative Instruments	The following table presents the net gain (loss) recognized in income on derivative instruments, net of the impact of offsetting positions: For the Years Ended December 31, 2017 2016 2015 (Dollars in millions) Derivatives not designated as hedging instruments: Location of Gain/(Loss) Futures Net return (loss) on mortgage servicing rights $ (1 ) $ — $ 6 Interest rate swaps and swaptions Net return (loss) on mortgage servicing rights (11 ) (5 ) (2 ) Mortgage-backed securities forwards Net return (loss) on mortgage servicing rights 4 5 1 Rate lock commitments and forward agency and loan sales Net gain (loss) on loan sales (34 ) 26 9 Forward commitments Other noninterest income — (2 ) (2 ) Interest rate swaps (1) Other noninterest income 2 4 2 Total derivative (loss) gain $ (40 ) $ 28 $ 14 (1) Includes customer-initiated commercial interest rate swaps.

Deposit Accounts (Tables)

Deposit Accounts (Tables)	12 Months Ended
	Dec. 31, 2017
Deposits [Abstract]
Schedule of Deposits	The deposit accounts are as follows: December 31, 2017 2016 (Dollars in millions) Retail deposits Branch retail deposits Demand deposit accounts $ 931 $ 852 Savings accounts 3,482 3,824 Money market demand accounts 124 138 Certificates of deposit/CDARS 1,491 1,055 Total branch retail deposits 6,028 5,869 Commercial deposits Demand deposit account 288 282 Savings account 71 63 Money market demand accounts 69 109 Certificates of deposit/CDARS 2 1 Total commercial deposits 430 455 Total retail deposits subtotal 6,458 6,324 Government deposits Demand deposit accounts 251 250 Savings accounts 446 451 Certificates of deposit/CDARS 376 329 Total government deposits 1,073 1,030 Wholesale deposits 45 — Company controlled deposits 1,358 1,446 Total deposits $ 8,934 $ 8,800
Schedule of Contractual Maturities, Certificates of Deposit, $100,000 or More	The following indicates the scheduled maturities for certificates of deposit with a minimum denomination of $250,000 : December 31, 2017 2016 (Dollars in millions) Three months or less $ 159 $ 126 Over three months to six months 128 116 Over six months to twelve months 173 146 One to two years 167 34 Thereafter 31 27 Total $ 658 $ 449

Borrowings (Tables)

Borrowings (Tables)	12 Months Ended
	Dec. 31, 2017
Debt Disclosure [Abstract]
Schedule of Federal Home Loan Bank, Advances, by Interest Rate Type	The following is a breakdown of our FHLB advances outstanding: December 31, 2017 December 31, 2016 Amount Rate Amount Rate (Dollars in millions) Short-term fixed rate term advances $ 4,260 1.40 % $ 1,780 0.62 % Total Short-term Federal Home Loan Bank advances 4,260 1,780 Long-term LIBOR adjustable advances 1,130 1.76 % 1,025 1.12 % Long-term fixed rate advances (1) 275 1.41 % 175 1.12 % Total Long-term Federal Home Loan Bank advances 1,405 1,200 Total Federal Home Loan Bank advances $ 5,665 $ 2,980 (1) Includes the current portion of fixed rate advances of $125 million and $50 million at December 31, 2017 and December 31, 2016 , respectively. We settled $250 million in long-term fixed rate FHLB advances during the fourth quarter of 2016 .
Schedule of Federal Home Loan Bank, Advances, Disclosures	The following table contains detailed information on our FHLB advances and other borrowings: For the Years Ended December 31, 2017 2016 2015 (Dollars in millions) Maximum outstanding at any month end $ 5,665 $ 3,557 $ 3,541 Average outstanding balance 4,590 2,833 1,811 Average remaining borrowing capacity 1,195 1,137 1,611 Weighted average interest rate 1.30 % 1.16 % 1.00 %
Schedule of Federal Home Loan Bank, Advances, Maturity Summary	The following table outlines the maturity dates of our FHLB advances and other borrowings: December 31, 2017 (Dollars in millions) 2018 $ 4,385 2019 50 2020 — 2021 — Thereafter 1,230 Total $ 5,665
Schedule of Long-term Debt Instruments	The following table presents long-term debt, net of debt issuance costs: December 31, 2017 December 31, 2016 Amount Interest Rate Amount Interest Rate (Dollars in millions) Senior Notes Senior notes, matures 2021 $ 247 6.125 % $ 246 6.125 % Trust Preferred Securities Floating Three Month LIBOR Plus 3.25%, matures 2032 $ 26 4.92 % $ 26 4.25 % Plus 3.25%, matures 2033 26 4.61 % 26 4.13 % Plus 3.25%, matures 2033 26 4.94 % 26 4.25 % Plus 2.00%, matures 2035 26 3.36 % 26 2.88 % Plus 2.00%, matures 2035 26 3.36 % 26 2.88 % Plus 1.75%, matures 2035 51 3.34 % 51 2.71 % Plus 1.50%, matures 2035 25 2.86 % 25 2.38 % Plus 1.45%, matures 2037 25 3.04 % 25 2.41 % Plus 2.50%, matures 2037 16 4.09 % 16 3.46 % Total Trust Preferred Securities 247 247 Total long-term debt $ 494 $ 493

Representation and Warranty R43

Representation and Warranty Reserve (Tables)	12 Months Ended
	Dec. 31, 2017
Representation and Warranty Reserve Disclosures [Abstract]
Schedule of Representation and Warranty Reserve Activity	The following table shows the activity impacting the representation and warranty reserve: For the Years Ended December 31, 2017 2016 2015 (Dollars in millions) Balance, beginning of period $ 27 $ 40 $ 53 Provision (benefit) Gain on sale reduction for representation and warranty liability 4 5 7 Representation and warranty provision (benefit) (13 ) (19 ) (19 ) Total (9 ) (14 ) (12 ) (Charge-offs) recoveries, net (3 ) 1 (1 ) Balance, end of period $ 15 $ 27 $ 40

Accumulated Other Comprehensi44

Accumulated Other Comprehensive Income (Loss) (Tables)	12 Months Ended
	Dec. 31, 2017
Equity [Abstract]
Schedule of Accumulated Other Comprehensive Income (Loss)	The following table sets forth the components in accumulated other comprehensive income (loss): For the Years Ended December 31, 2017 2016 2015 (Dollars in millions) Investment Securities Beginning balance $ (8 ) $ 5 $ 8 Unrealized gain (loss) (19 ) (10 ) (7 ) Less: Tax (benefit) provision (7 ) (3 ) (2 ) Net unrealized gain (loss) (12 ) (7 ) (5 ) Reclassifications out of AOCI (1) 3 (9 ) 3 Less: Tax (benefit) provision 1 (3 ) 1 Net unrealized gain (loss) reclassified out of AOCI 2 (6 ) 2 Other comprehensive income/(loss), net of tax (10 ) (13 ) (3 ) Ending balance $ (18 ) $ (8 ) $ 5 Cash Flow Hedges Beginning balance $ 1 $ (3 ) $ — Unrealized gain (loss) 5 (13 ) (6 ) Less: Tax (benefit) provision 1 (5 ) (1 ) Net unrealized gain (loss) 4 (8 ) (5 ) Reclassifications out of AOCI (1) (5 ) 19 2 Less: Tax (benefit) provision (2 ) 7 — Net unrealized gain (loss) reclassified out of AOCI (3 ) 12 2 Other comprehensive income/(loss), net of tax 1 4 (3 ) Ending balance $ 2 $ 1 $ (3 ) (1) Reclassifications are reported in other noninterest income on the Consolidated Statement of Operations.

Earnings Per Share (Tables)

Earnings Per Share (Tables)	12 Months Ended
	Dec. 31, 2017
Earnings Per Share [Abstract]
Schedule of Earnings Per Share, Basic and Diluted	The following table sets forth the computation of basic and diluted earnings per share of common stock: For the Years Ended December 31, 2017 2016 2015 (In millions, except share data) Net income $ 63 $ 171 $ 158 Deferred cumulative preferred stock dividends — (18 ) (30 ) Net income applicable to common stockholders $ 63 $ 153 $ 128 Weighted Average Shares Weighted average common shares outstanding 57,093,868 56,569,307 56,426,977 Effect of dilutive securities May Investor Warrants 12,287 138,314 305,484 Stock-based awards 1,072,188 890,046 432,062 Weighted average diluted common shares 58,178,343 57,597,667 57,164,523 Earnings per common share Basic earnings per common share $ 1.11 $ 2.71 $ 2.27 Effect of dilutive securities May Investor Warrants — (0.01 ) (0.01 ) Stock-based awards (0.02 ) (0.04 ) (0.02 ) Diluted earnings per common share $ 1.09 $ 2.66 $ 2.24

Stock-Based Compensation (Table

Stock-Based Compensation (Tables)	12 Months Ended
	Dec. 31, 2017
Disclosure of Compensation Related Costs, Share-based Payments [Abstract]
Schedule of Stock Option Activity, Shares	The following tables summarize the activity that occurred in the years ended December 31: Number of Shares 2017 (1) 2016 2015 Options outstanding, beginning of year 45,791 53,284 63,598 Options canceled, forfeited and expired (5,073 ) (7,493 ) (10,314 ) Options outstanding, end of year 40,718 45,791 53,284 Options vested or expected to vest, end of year 40,718 45,791 53,284 Options exercisable, end of year 20,286 23,576 27,197 Weighted Average Exercise Price 2017 (1) 2016 2015 Options outstanding, beginning of year $ 80.00 $ 80.00 $ 94.33 Options canceled, forfeited and expired 80.00 80.00 168.34 Options outstanding, end of year $ 80.00 $ 80.00 $ 80.00 Options vested or expected to vest, end of year $ 80.00 $ 80.00 $ 80.00 Options exercisable, end of year $ 80.00 $ 80.00 $ 80.00 (1) All outstanding options at December 31, 2017 are vested or expected to vest and have a weighted average remaining contractual life of 2.1 years.
Schedule of Restricted Stock Units Award Activity	The following table summarizes restricted stock activity: For the Years Ended December 31, 2017 2016 2015 Shares Weighted — Average Grant-Date Fair Value per Share Shares Weighted — Average Grant-Date Fair Value per Share Shares Weighted — Average Grant-Date Fair Value per Share Restricted Stock and Restricted Stock Units Non-vested balance at beginning of period 1,461,910 $ 17.68 1,299,985 $ 16.36 233,691 $ 17.21 Granted 357,058 28.06 310,209 22.97 1,325,134 16.11 Vested (385,454 ) 17.36 (134,767 ) 15.78 (152,220 ) 15.25 Canceled and forfeited (143,064 ) 18.89 (13,517 ) 17.24 (106,620 ) 18.46 Non-vested balance at end of period 1,290,450 $ 20.52 1,461,910 $ 17.68 1,299,985 $ 16.36

Income Taxes (Tables)

Income Taxes (Tables) - Federal	12 Months Ended
	Dec. 31, 2017
Schedule of Income Tax Disclosure
Schedule of Components of Income Tax Expense (Benefit)	Components of the provision (benefit) for income taxes consist of the following: For the Years Ended December 31, 2017 2016 2015 (Dollars in millions) Current Federal $ 2 $ 4 $ 2 Total current income tax expense 2 4 2 Deferred Federal 66 84 82 Federal impact of tax reform 80 — — State — (1 ) (2 ) Total deferred income tax expense 146 83 80 Total income tax expense $ 148 $ 87 $ 82
Schedule of Effective Income Tax Rate Reconciliation	Our effective tax rate differs from the statutory federal tax rate. The following is a summary of such differences: For the Years Ended December 31, 2017 2016 2015 (Dollars in millions) Provision at statutory federal income tax rate (35%) $ 74 $ 90 $ 84 Increases (decreases) resulting from: Tax Reform 80 — — Bank Owned Life Insurance (3 ) (3 ) (1 ) Restricted stock compensation (2 ) — — State income tax (benefit), net of federal income tax effect (includes valuation allowance) — (1 ) (2 ) Warrant expense (income) — 1 1 Non-deductible compensation — — 1 Other (1 ) — (1 ) Provision for income taxes $ 148 $ 87 $ 82 Effective tax provision rate 70.1 % 33.7 % 34.2 %
Schedule of Net Deferred Tax Assets	Temporary differences and carry forwards that give rise to DTAs and liabilities are comprised of the following: December 31, 2017 2016 (Dollars in millions) Deferred tax assets Net operating loss carryforwards (Federal and State) $ 110 $ 195 Allowance for loan losses 43 74 Litigation settlement 14 22 Alternative Minimum Tax credit carry forwards — 18 Representation and warranty reserves 3 10 Accrued compensation 10 15 Contingent Consideration 6 — Loan deferred fees and costs 2 3 Non-accrual interest revenue 1 2 Deferred interest 1 2 General business credits 3 1 Other 2 5 Total 195 347 Valuation allowance (20 ) (20 ) Total (net) 175 327 Deferred tax liabilities Premises and equipment (14 ) (12 ) Mortgage loan servicing rights (3 ) (11 ) Mark-to-market adjustments (10 ) (9 ) Commercial lease financing (9 ) (5 ) State and local taxes (3 ) (4 ) Total (39 ) (41 ) Net deferred tax asset $ 136 $ 286

Regulatory Capital (Tables)

Regulatory Capital (Tables)	12 Months Ended
	Dec. 31, 2017
Banking and Thrift [Abstract]
Schedule of Compliance with Regulatory Capital Requirements under Banking Regulations	The following tables present the regulatory capital ratios as of the dates indicated: Flagstar Bancorp Actual For Capital Adequacy Purposes Well Capitalized Under Prompt Corrective Action Provisions Amount Ratio Amount Ratio Amount Ratio (Dollars in millions) December 31, 2017 Tangible capital (to adjusted avg. total assets) $ 1,442 8.51 % N/A N/A N/A N/A Tier 1 capital (to adjusted avg. total assets) 1,442 8.51 % $ 678 4.0 % $ 848 5.0 % Common equity Tier 1 capital (to RWA) 1,216 11.50 % 476 4.5 % 688 6.5 % Tier 1 capital (to RWA) 1,442 13.63 % 635 6.0 % 846 8.0 % Total capital (to RWA) 1,576 14.90 % 846 8.0 % 1,058 10.0 % December 31, 2016 Tangible capital (to adjusted avg. total assets) $ 1,256 8.88 % N/A N/A N/A N/A Tier 1 capital (to adjusted avg. total assets) 1,256 8.88 % $ 566 4.0 % $ 707 5.0 % Common equity Tier 1 capital (to RWA) 1,084 13.06 % 374 4.5 % 540 6.5 % Tier 1 capital (to RWA) 1,256 15.12 % 498 6.0 % 664 8.0 % Total capital (to RWA) 1,363 16.41 % 664 8.0 % 830 10.0 % N/A - Not applicable. Flagstar Bank Actual For Capital Adequacy Purposes Well Capitalized Under Prompt Corrective Action Provisions Amount Ratio Amount Ratio Amount Ratio (Dollars in millions) December 31, 2017 Tangible capital (to adjusted avg. total assets) $ 1,531 9.04 % N/A N/A N/A N/A Tier 1 capital (to adjusted avg. total assets) 1,531 9.04 % $ 677 4.0 % $ 847 5.0 % Common equity Tier 1 capital (to RWA) 1,531 14.46 % 476 4.5 % 688 6.5 % Tier 1 capital (to RWA) 1,531 14.46 % 635 6.0 % 847 8.0 % Total capital (to RWA) 1,664 15.72 % 847 8.0 % 1,059 10.0 % December 31, 2016 Tangible capital (to adjusted avg. total assets) $ 1,491 10.52 % N/A N/A N/A N/A Tier 1 capital (to adjusted avg. total assets) 1,491 10.52 % $ 567 4.0 % $ 709 5.0 % Common equity Tier 1 capital (to RWA) 1,491 17.90 % 375 4.5 % 542 6.5 % Tier 1 capital (to RWA) 1,491 17.90 % 500 6.0 % 667 8.0 % Total capital (to RWA) 1,598 19.18 % 667 8.0 % 833 10.0 % N/A - Not applicable.

Legal Proceedings, Contingenc49

Legal Proceedings, Contingencies and Commitments (Tables)	12 Months Ended
	Dec. 31, 2017
Commitments and Contingencies Disclosure [Abstract]
Schedule of Significant Commitments	The following table is a summary of the contractual amount of significant commitments: December 31, 2017 2016 (Dollars in millions) Commitments to extend credit Mortgage loan interest-rate lock commitments $ 3,667 $ 4,115 Warehouse loan commitments 1,618 1,670 Commercial and industrial commitments 695 424 Other commercial commitments 1,021 651 HELOC commitments 283 179 Other consumer commitments 15 57 Standby and commercial letters of credit 50 30

Fair Value Measurements (Tables

Fair Value Measurements (Tables)	12 Months Ended
	Dec. 31, 2017
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 by caption on the Consolidated Statements of Financial Condition and by level in the valuation hierarchy: December 31, 2017 Level 1 Level 2 Level 3 Total Fair Value (Dollars in millions) Investment securities available-for-sale Agency - Commercial $ — $ 987 $ — $ 987 Agency - Residential — 794 — 794 Municipal obligations — 34 — 34 Corporate debt obligations — 38 — 38 Loans held-for-sale Residential first mortgage loans — 4,300 — 4,300 Loans held-for-investment Residential first mortgage loans — 8 — 8 Home equity — — 4 4 Mortgage servicing rights — — 291 291 Derivative assets Rate lock commitments (fallout-adjusted) — — 24 24 Mortgage-backed securities forwards — 4 — 4 Interest rate swaps and swaptions — 11 — 11 Total assets at fair value $ — $ 6,176 $ 319 $ 6,495 Derivative liabilities Interest rate swap on FHLB advances — (1 ) — (1 ) Mortgage-backed securities forwards — (6 ) — (6 ) Interest rate swaps — (4 ) — (4 ) DOJ litigation settlement — — (60 ) (60 ) Contingent consideration — — (25 ) (25 ) Total liabilities at fair value $ — $ (11 ) $ (85 ) $ (96 ) On May 15, 2017, the Company closed on the acquisition of certain assets of Opes Advisors (“Opes”), a California based retail mortgage originator and wealth management service provider. Although the acquired assets of Opes were not significant, the addition of Opes positions us to increase our distributed retail lending channel. Consideration in the acquisition of Opes consisted of upfront cash and contingent cash in the form of an earn-out. The earn-out is based on future target production volumes and profitability of the division which were significant inputs to the preliminary fair value. December 31, 2016 Level 1 Level 2 Level 3 Total Fair Value (Dollars in millions) Investment securities available-for-sale Agency - Commercial $ — $ 548 $ — $ 548 Agency - Residential — 898 — 898 Municipal obligations — 34 — 34 Loans held-for-sale Residential first mortgage loans — 3,145 — 3,145 Loans held-for-investment Residential first mortgage loans — 7 — 7 Home equity — — 65 65 Mortgage servicing rights — — 335 335 Derivative assets Rate lock commitments (fallout-adjusted) — — 24 24 Futures 2 — — 2 Mortgage-backed securities forwards — 43 — 43 Interest rate swaps and swaptions — 35 — 35 Interest rate swaps on FHLB advances (net) — 19 — 19 Total assets at fair value $ 2 $ 4,729 $ 424 $ 5,155 Derivative liabilities Rate lock commitments (fallout-adjusted) $ — $ — $ (6 ) $ (6 ) Mortgage-backed securities forwards — (11 ) — (11 ) Interest rate swaps — (37 ) — (37 ) Warrant liabilities — (4 ) — (4 ) DOJ litigation settlement — — (60 ) (60 ) Total liabilities at fair value $ — $ (52 ) $ (66 ) $ (118 )
Fair Value, Assets and Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation	The following tables include a roll forward of the Consolidated Statements of Financial Condition amounts (including the change in fair value) for financial instruments classified by us within Level 3 of the valuation hierarchy: Balance at Recorded Recorded Purchases / Originations Sales Settlement Transfers In (Out) Balance at End of Year Total Total Total (Dollars in millions) For the Years Ended December 31, 2017 Assets Loans held-for-sale Home equity $ — $ 1 $ — $ — $ — $ (52 ) $ (1 ) $ 52 $ — Loans held-for-investment Home equity 65 2 — — — — (8 ) (55 ) 4 Mortgage servicing rights 335 (22 ) — — 288 (310 ) — — 291 Rate lock commitments (net) (1) 18 54 — — 267 — — (315 ) 24 Totals $ 418 $ 35 $ — $ — $ 555 $ (362 ) $ (9 ) $ (318 ) $ 319 Liabilities DOJ litigation settlement $ (60 ) $ — $ — $ — $ — $ — $ — $ — $ (60 ) Contingent consideration — (1 ) — — (25 ) — 1 — (25 ) Totals $ (60 ) $ (1 ) $ — $ — $ (25 ) $ — $ 1 $ — $ (85 ) For the Years Ended December 31, 2016 Assets Loans held-for-investment Home equity $ 106 $ 5 $ — $ — $ — $ — $ (46 ) $ — $ 65 Mortgage servicing rights 296 (105 ) — — 228 (84 ) — — 335 Rate lock commitments (net) (1) 26 25 — — 325 — — (358 ) 18 Totals $ 428 $ (75 ) $ — $ — $ 553 $ (84 ) $ (46 ) $ (358 ) $ 418 Liabilities DOJ litigation settlement $ (84 ) $ 24 $ — $ — $ — $ — $ — $ — $ (60 ) Year Ended December 31, 2015 Assets Investment securities available-for-sale Municipal obligation $ 2 $ — $ — $ — $ — $ — $ (2 ) $ — $ — Loans held-for-investment Home equity $ 185 $ (2 ) $ — $ — $ — $ — $ (77 ) $ — $ 106 Mortgage servicing rights 258 (46 ) — — 260 (176 ) — — 296 Other investments 100 (100 ) — Rate lock commitments (net) (1) 31 60 — — 277 — — (342 ) 26 Totals $ 576 $ 12 $ — $ — $ 537 $ (176 ) $ (179 ) $ (342 ) $ 428 Liabilities Long-term debt $ (84 ) $ — $ (3 ) $ — $ — $ 52 $ 35 $ — $ — DOJ litigation settlement (82 ) (2 ) — — — — — — (84 ) Totals $ (166 ) $ (2 ) $ (3 ) $ — $ — $ 52 $ 35 $ — $ (84 ) (1) Rate lock commitments are reported on a fallout adjusted basis. Transfers out of Level 3 represent the settlement value of the commitments that are transferred to LHFS, which are classified as Level 2 assets.
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: Fair Value Valuation Technique Unobservable Input Range (Weighted Average) (Dollars in millions) December 31, 2017 Assets Loans held-for-investment Home equity $ 4 Discounted cash flows Discount rate 7.2% - 10.8% (9.0%) Mortgage servicing rights $ 291 Discounted cash flows Option adjusted spread 5.0% - 7.5% (6.3%) Rate lock commitments (net) $ 24 Consensus pricing Origination pull-through rate 64.7% - 97.1% (82.0%) Liabilities DOJ litigation settlement $ (60 ) Discounted cash flows Discount rate 7.8% - 11.7% (9.7%) Contingent consideration $ (25 ) Discounted cash flows Beta 0.6 - 1.6 (1.1) Fair Value Valuation Technique Unobservable Input Range (Weighted Average) (Dollars in millions) December 31, 2016 Assets Loans held-for-investment Home equity $ 65 Discounted cash flows Discount rate 6.0% - 12.2% (9.3%) Mortgage servicing rights $ 335 Discounted cash flows Option adjusted spread 6.2% - 9.3% (7.8%) Rate lock commitments (net) $ 18 Consensus pricing Origination pull-through rate 66.9% - 100.0% (83.6%) Liabilities DOJ litigation settlement $ (60 ) Discounted cash flows Discount rate 6.6% - 9.8% (8.2%)
Fair Value Measurements, Nonrecurring	We also have assets that under certain conditions are subject to measurement at fair value on a nonrecurring basis. The following table presents assets measured at fair value on a nonrecurring basis: Total (1) Level 2 Level 3 Gains/(Losses) (Dollars in millions) December 31, 2017 Loans held-for-sale (2) $ 6 $ 6 $ — $ (1 ) Impaired loans held-for-investment (2) Residential first mortgage loans 21 — 21 (10 ) Repossessed assets (3) 8 — 8 — Totals $ 35 $ 6 $ 29 $ (11 ) December 31, 2016 Loans held-for-sale (2) $ 9 $ 9 $ — $ (2 ) Impaired loans held-for-investment (2) Residential first mortgage loans 25 — 25 (28 ) Repossessed assets (3) 14 — 14 (2 ) Totals $ 48 $ 9 $ 39 $ (32 ) (1) The fair values are determined at various dates during the years ended December 31, 2017 and 2016 , respectively. (2) Gains/(losses) reflect fair value adjustments on assets for which we did not elect the fair value option. (3) Gains/(losses) reflect write downs of repossessed assets based on the estimated fair value of the specific assets
Fair Value, Assets and Liabilities Measured on Nonrecurring Basis, Valuation Techniques	The following tables present the quantitative information about nonrecurring Level 3 fair value financial instruments and the fair value measurements: Fair Value Valuation Technique Unobservable Input Range (Weighted Average) (Dollars in millions) December 31, 2017 Impaired loans held-for-investment Loans held-for-investment $ 21 Fair value of collateral Loss severity discount 25% - 30% (27.9%) Repossessed assets $ 8 Fair value of collateral Loss severity discount 0% - 100% (70.9%) December 31, 2016 Impaired loans held-for-investment Residential first mortgage loans $ 25 Fair value of collateral Loss severity discount 22% - 40% (29.5%) Repossessed assets $ 14 Fair value of collateral Loss severity discount 22% - 100% (69.5%)
Fair Value, by Balance Sheet Grouping	The following table presents the carrying amount and estimated fair value of financial instruments that are carried either at fair value, cost, or amortized cost: December 31, 2017 Estimated Fair Value Carrying Value Total Level 1 Level 2 Level 3 (Dollars in millions) Assets Cash and cash equivalents $ 204 $ 204 $ 204 $ — $ — Investment securities available-for-sale 1,853 1,853 — 1,853 — Investment securities held-to-maturity 939 924 — 924 — Loans held-for-sale 4,321 4,322 — 4,322 — Loans held-for-investment 7,713 7,667 — 8 7,659 Loans with government guarantees 271 261 — 261 — Mortgage servicing rights 291 291 — — 291 Federal Home Loan Bank stock 303 303 — 303 — Bank owned life insurance 330 330 — 330 — Repossessed assets 8 8 — — 8 Other assets, foreclosure claims 84 84 — 84 — Derivative financial instruments, assets 39 39 — 15 24 Liabilities Retail deposits Demand deposits and savings accounts $ (4,965 ) $ (4,557 ) $ — $ (4,557 ) $ — Certificates of deposit (1,493 ) (1,498 ) — (1,498 ) — Wholesale deposits (45 ) (43 ) — (43 ) — Government deposits (1,073 ) (1,048 ) — (1,048 ) — Company controlled deposits (1,358 ) (1,311 ) — (1,311 ) — Federal Home Loan Bank advances (5,665 ) (5,662 ) — (5,662 ) — Long-term debt (494 ) (417 ) — (417 ) — DOJ litigation settlement (60 ) (60 ) — — (60 ) Contingent consideration (25 ) (25 ) — — (25 ) Derivative financial instruments, liabilities (11 ) (11 ) — (11 ) — December 31, 2016 Estimated Fair Value Carrying Value Total Level 1 Level 2 Level 3 (Dollars in millions) Assets Cash and cash equivalents $ 158 $ 158 $ 158 $ — $ — Investment securities available-for-sale 1,480 1,480 — 1,480 — Investment securities held-to-maturity 1,093 1,084 — 1,084 — Loans held-for-sale 3,177 3,178 — 3,178 — Loans held-for-investment 6,065 5,998 — 7 5,991 Loans with government guarantees 365 354 — 354 — Mortgage servicing rights 335 335 — — 335 Federal Home Loan Bank stock 180 180 — 180 — Bank owned life insurance 271 271 — 271 — Repossessed assets 14 14 — — 14 Other assets, foreclosure claims 135 135 — 135 — Derivative financial instruments, assets 123 123 45 54 24 Liabilities Retail deposits Demand deposits and savings accounts $ (5,268 ) $ (4,956 ) $ — $ (4,956 ) $ — Certificates of deposit (1,056 ) (1,062 ) — (1,062 ) — Government deposits (1,030 ) (1,011 ) — (1,011 ) — Company controlled deposits (1,446 ) (1,371 ) — (1,371 ) — Federal Home Loan Bank advances (2,980 ) (2,964 ) — (2,964 ) — Long-term debt (493 ) (277 ) — (277 ) — Warrant liabilities (4 ) (4 ) — (4 ) — DOJ litigation settlement (60 ) (60 ) — — (60 ) Derivative financial instruments, liabilities (54 ) (54 ) (11 ) (37 ) (6 )
Schedule of Changes in Fair Value Included in Earnings	The following table reflects the change in fair value included in earnings of financial instruments for which the fair value option has been elected: For the Years Ended December 31, 2017 2016 2015 (Dollars in millions) Assets Loans held-for-sale Net gain on loan sales $ 283 $ 269 $ 321 Loans held-for-investment Other noninterest income 1 1 40 Liabilities Long-term debt Other noninterest income $ — $ — $ 29 Litigation settlement Other noninterest income — 24 — Other noninterest (expense) — — (2 )
Fair Value, Option, Quantitative Disclosures	The following table reflects the difference between the aggregate fair value and aggregate remaining contractual principal balance outstanding for assets and liabilities for which the fair value option has been elected: December 31, 2017 December 31, 2016 Unpaid Principal Balance Fair Value Fair Value Over / (Under) Unpaid Principal Balance Unpaid Principal Balance Fair Value Fair Value Over / (Under) Unpaid Principal Balance (Dollars in millions) Assets Nonaccrual loans Loans held-for-sale $ 6 $ 5 $ (1 ) $ 2 $ 2 $ — Loans held-for-investment 5 4 (1 ) 19 13 (6 ) Total nonaccrual loans $ 11 $ 9 $ (2 ) $ 21 $ 15 $ (6 ) Other performing loans Loans held-for-sale $ 4,167 $ 4,295 $ 128 $ 3,103 $ 3,143 $ 40 Loans held-for-investment 10 8 (2 ) 72 59 (13 ) Total other performing loans $ 4,177 $ 4,303 $ 126 $ 3,175 $ 3,202 $ 27 Total loans Loans held-for-sale $ 4,173 $ 4,300 $ 127 $ 3,105 $ 3,145 $ 40 Loans held-for-investment 15 12 (3 ) 91 72 (19 ) Total loans $ 4,188 $ 4,312 $ 124 $ 3,196 $ 3,217 $ 21 Liabilities Litigation settlement (1) $ (118 ) $ (60 ) $ 58 $ (118 ) $ (60 ) $ 58 (1) We are obligated to pay $118 million in installment payments upon meeting certain performance conditions, as described in Note 21 - Legal Proceedings, Contingencies and Commitments.

Segment Information (Tables)

Segment Information (Tables)	12 Months Ended
	Dec. 31, 2017
Segment Reporting [Abstract]
Schedule of Segment Reporting Information, by Segment	The following tables present financial information by business segment for the periods indicated: Year Ended December 31, 2017 Community Banking Mortgage Originations Mortgage Servicing Other Total (Dollars in millions) Summary of Operations Net interest income $ 238 $ 129 $ 22 $ 1 $ 390 Net gain (loss) on loan sales (10 ) 278 — — 268 Representation and warranty benefit — 13 — — 13 Other noninterest income 33 79 55 22 189 Total net interest income and noninterest income 261 499 77 23 860 Benefit (provision) for loan losses (4 ) (4 ) — 2 (6 ) Depreciation and amortization expense (9 ) (8 ) (4 ) (19 ) (40 ) Other noninterest expense (188 ) (318 ) (96 ) (1 ) (603 ) Total noninterest expense (197 ) (326 ) (100 ) (20 ) (643 ) Income (loss) before income taxes 60 169 (23 ) 5 211 Provision (benefit) for income taxes 21 59 (8 ) 76 148 Net income (loss) $ 39 $ 110 $ (15 ) $ (71 ) $ 63 Intersegment revenue $ (6 ) $ 4 $ 19 $ (17 ) $ — Average balances Loans held-for-sale $ 16 $ 4,130 $ — $ — $ 4,146 Loans with government guarantees — 290 — — 290 Loans held-for-investment 6,460 7 — 29 6,496 Total assets 6,544 5,414 36 3,852 15,846 Deposits 7,454 — 1,453 — 8,907 Year Ended December 31, 2016 Community Banking Mortgage Originations Mortgage Servicing Other Total (Dollars in millions) Summary of Operations Net interest income $ 206 $ 90 $ 25 $ 2 $ 323 Net gain (loss) on loan sales 6 310 — — 316 Representation and warranty benefit — 19 — — 19 Other noninterest income 28 24 56 44 152 Total net interest income and noninterest income 240 443 81 46 810 Benefit (provision) for loan losses 10 (2 ) — — 8 Depreciation and amortization expense (7 ) (5 ) (4 ) (16 ) (32 ) Other noninterest expense (173 ) (253 ) (97 ) (5 ) (528 ) Total noninterest expense (180 ) (258 ) (101 ) (21 ) (560 ) Income (loss) before income taxes 70 183 (20 ) 25 258 Provision (benefit) for income taxes 24 64 (7 ) 6 87 Net income (loss) $ 46 $ 119 $ (13 ) $ 19 $ 171 Intersegment revenue $ (3 ) $ (1 ) $ 23 $ (19 ) $ — Average balances Loans held-for-sale $ 66 $ 3,068 $ — $ — $ 3,134 Loans with government guarantees — 435 — — 435 Loans held-for-investment 5,807 6 — — 5,813 Total assets 5,906 4,435 28 3,538 13,907 Deposits 7,151 — 1,611 — 8,762 Year Ended December 31, 2015 Community Banking Mortgage Originations Mortgage Servicing Other Total (Dollars in millions) Summary of Operations Net interest income $ 171 $ 80 $ 5 $ 31 $ 287 Net gain (loss) on loan sales (15 ) 303 — — 288 Representation and warranty benefit — 19 — — 19 Other noninterest income 25 74 60 4 163 Total net interest income and noninterest income 181 476 65 35 757 Benefit for loan losses 19 — — — 19 Depreciation and amortization expense (6 ) (3 ) (3 ) (12 ) (24 ) Other noninterest expense (154 ) (244 ) (105 ) (9 ) (512 ) Total noninterest expense (160 ) (247 ) (108 ) (21 ) (536 ) Income (loss) before income taxes 40 229 (43 ) 14 240 Provision (benefit) for income taxes 14 80 (15 ) 3 82 Net income (loss) $ 26 $ 149 $ (28 ) $ 11 $ 158 Intersegment revenue $ (15 ) $ 7 $ 20 $ (12 ) $ — Average balances Loans held-for-sale $ 40 $ 2,148 $ — $ — $ 2,188 Loans with government guarantees — 633 — — 633 Loans held-for-investment 4,986 4 — 86 5,076 Total assets 4,972 3,553 52 3,379 11,956 Deposits 6,674 — 1,203 — 7,877

Holding Company Only Financia52

Holding Company Only Financial Statements (Tables) - Parent Company	12 Months Ended
	Dec. 31, 2017
Condensed Financial Statements, Captions
Schedule of Condensed Unconsolidated Statements of Financial Condition	Flagstar Bancorp, Inc. Condensed Unconsolidated Statements of Financial Condition (Dollars in millions) December 31, 2017 2016 (Dollars in millions) Assets Cash and cash equivalents $ 196 $ 70 Investment in subsidiaries (1) 1,676 1,728 Other assets 44 57 Total assets $ 1,916 $ 1,855 Liabilities and Stockholders’ Equity Liabilities Long term debt $ 494 $ 493 Other liabilities 23 26 Total liabilities 517 519 Stockholders’ Equity Common stock 1 1 Additional paid in capital 1,512 1,503 Accumulated other comprehensive income (17 ) (7 ) Accumulated deficit (97 ) (161 ) Total stockholders’ equity 1,399 1,336 Total liabilities and stockholders’ equity $ 1,916 $ 1,855 (1) Includes unconsolidated trusts of $7 million for December 31, 2017 and 2016 .
Schedule of Condensed Unconsolidated Statements of Operations	Flagstar Bancorp, Inc. Condensed Unconsolidated Statements of Operations (Dollars in millions) For the Years Ended December 31, 2017 2016 2015 (Dollars in millions) Expenses Interest $ 25 $ 16 $ 7 General and administrative 9 9 13 Total 34 25 20 Loss before undistributed income of subsidiaries (34 ) (25 ) (20 ) Equity in undistributed income of subsidiaries 110 188 172 Income before income taxes 76 163 152 Provision (benefit) for income taxes 13 (8 ) (6 ) Net income 63 171 158 Other comprehensive income (1) (9 ) (9 ) (6 ) Comprehensive income $ 54 $ 162 $ 152 (1) See Consolidated Statements of Comprehensive Income for other comprehensive income (loss) detail.
Schedule of Condensed Unconsolidated Statements of Cash Flows	Flagstar Bancorp, Inc. Condensed Unconsolidated Statements of Cash Flows (Dollars in millions) For the Years Ended December 31, 2017 2016 2015 (Dollars in millions) Net income (loss) $ 63 $ 171 $ 158 Adjustments to reconcile net loss to net cash provided by operating activities Equity in (income) loss of subsidiaries 47 12 (172 ) Stock-based compensation 5 10 3 Change in other assets 18 (8 ) (6 ) Provision for deferred tax benefit — — 1 Change in other liabilities (2 ) (22 ) 9 Change in fair value and other non-cash changes (5 ) (4 ) — Net cash used in operating activities 126 159 (7 ) Investing Activities Net change in investment in subsidiaries — — (2 ) Net cash provided by (used in) investment activities — — (2 ) Financing Activities Proceeds from the issuance of junior subordinated debentures — 245 — Redemption of preferred stock — (267 ) — Dividends paid on preferred stock — (104 ) — Net cash used in financing activities — (126 ) — Net increase (decrease) in cash and cash equivalents 126 33 (9 ) Cash and cash equivalents, beginning of year 70 37 46 Cash and cash equivalents, end of year $ 196 $ 70 $ 37

Quarterly Financial Data (Una53

Quarterly Financial Data (Unaudited) (Tables)	12 Months Ended
	Dec. 31, 2017
Quarterly Financial Information Disclosure [Abstract]
Schedule of Quarterly Financial Information	The following table represents summarized data for each of the quarters in 2017 , 2016 and 2015 : 2017 First Second Third Fourth (Dollars in millions, except per share data) Interest income $ 110 $ 129 $ 140 $ 148 Interest expense 27 32 37 41 Net interest income 83 97 103 107 Provision (benefit) for loan losses 3 (1 ) 2 2 Net interest income after provision for loan losses 80 98 101 105 Net gain on loan sales 48 66 75 79 Loan fees and charges 15 20 23 24 Deposit fees and charges 4 5 5 4 Loan administration income 5 6 5 5 Net return (loss) on the mortgage servicing rights 14 6 6 (4 ) Representation and warranty benefit 4 3 4 2 Other noninterest income 10 10 12 14 Noninterest expense 140 154 171 178 Income before income tax 40 60 60 51 Provision for income taxes 13 19 20 96 Net income (loss) from continuing operations $ 27 $ 41 $ 40 $ (45 ) Basic income (loss) per share $ 0.47 $ 0.72 $ 0.71 $ (0.79 ) Diluted income (loss) per share $ 0.46 $ 0.71 $ 0.70 $ (0.79 ) 2016 First Second Third Fourth (Dollars in millions, except per share data) Interest income $ 101 $ 99 $ 106 $ 111 Interest expense 22 22 26 24 Net interest income 79 77 80 87 (Benefit) provision for loan losses (13 ) (3 ) 7 1 Net interest income after provision for loan losses 92 80 73 86 Net gain on loan sales 75 90 94 57 Loan fees and charges 15 19 22 20 Loan administration income 6 4 4 4 Net (loss) on the mortgage servicing rights (6 ) (4 ) (11 ) (5 ) Representation and warranty benefit 2 4 6 7 Other noninterest income 13 15 41 15 Noninterest expense 137 139 142 142 Income before income tax 60 69 87 42 Provision for income taxes 21 22 30 14 Net income from continuing operations $ 39 $ 47 $ 57 $ 28 Basic income per share $ 0.56 $ 0.67 $ 0.98 $ 0.50 Diluted income per share $ 0.54 $ 0.66 $ 0.96 $ 0.49 2015 First Second Third Fourth (Dollars in millions, except per share data) Interest income $ 79 $ 90 $ 91 $ 95 Interest expense 14 17 18 19 Net interest income 65 73 73 76 (Benefit) for loan losses (4 ) (13 ) (1 ) (1 ) Net interest income after provision for loan losses 69 86 74 77 Net gain on loan sales 91 83 68 46 Loan fees and charges 17 19 17 14 Loan administration income 4 7 8 7 Net (loss) return on mortgage servicing rights (2 ) 9 12 9 Representation and warranty benefit 2 5 6 6 Other noninterest income 7 3 17 15 Noninterest expense 138 138 131 129 Income before income tax 50 74 71 45 Provision for income taxes 18 28 24 12 Net income from continuing operations $ 32 $ 46 $ 47 $ 33 Basis income per share $ 0.43 $ 0.69 $ 0.70 $ 0.45 Diluted income per share $ 0.43 $ 0.68 $ 0.69 $ 0.44

Description of Business, Basi54

Description of Business, Basis of Presentation, and Summary of Significant Accounting Policies (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Schedule of Trading and Available-for-sale Securities [Line Items]
Loans receivable, minimum number of days past due to be placed on non-accrual status	90 days
Advertising expense	$ 16	$ 11	$ 9
Investment securities held-to-maturity	939	1,093
Investment securities available-for-sale	1,853	$ 1,480
Adjustment
Schedule of Trading and Available-for-sale Securities [Line Items]
Investment securities held-to-maturity	(144)
Investment securities available-for-sale	$ 144
Minimum
Schedule of Trading and Available-for-sale Securities [Line Items]
Estimated useful lives	3 years
Minimum | Computer hardware and software
Schedule of Trading and Available-for-sale Securities [Line Items]
Estimated useful lives	3 years
Maximum
Schedule of Trading and Available-for-sale Securities [Line Items]
Estimated useful lives	30 years
Maximum | Computer hardware and software
Schedule of Trading and Available-for-sale Securities [Line Items]
Estimated useful lives	7 years
Consumer Loan Secured by Real Estate
Schedule of Trading and Available-for-sale Securities [Line Items]
Loans receivable, excluding real estate loans, minimum number of days past due for charge-off	180 days
Consumer Loan Not Secured by Real Estate
Schedule of Trading and Available-for-sale Securities [Line Items]
Loans receivable, excluding real estate loans, minimum number of days past due for charge-off	120 days

Investment Securities (Details)

Investment Securities (Details) - USD ($)	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Available-for-sale securities
Amortized Cost	$ 1,887,000,000	$ 1,498,000,000
Gross Unrealized Gains	1,000,000	3,000,000
Gross Unrealized Losses	(35,000,000)	(21,000,000)
Fair Value	1,853,000,000	1,480,000,000
Held-to-maturity securities
Amortized Cost	939,000,000	1,093,000,000
Gross Unrealized Gains	0	1,000,000
Gross Unrealized Losses	(15,000,000)	(10,000,000)
Fair Value	924,000,000	1,084,000,000
Other than temporary impairment	0	0	$ 0
Agency - Commercial
Held-to-maturity securities
Amortized Cost	526,000,000	595,000,000
Gross Unrealized Gains	0	0
Gross Unrealized Losses	(9,000,000)	(6,000,000)
Fair Value	517,000,000	589,000,000
Agency - Residential
Held-to-maturity securities
Amortized Cost	413,000,000	498,000,000
Gross Unrealized Gains	0	1,000,000
Gross Unrealized Losses	(6,000,000)	(4,000,000)
Fair Value	407,000,000	495,000,000
Agency - Commercial
Available-for-sale securities
Amortized Cost	1,004,000,000	551,000,000
Gross Unrealized Gains	0	2,000,000
Gross Unrealized Losses	(17,000,000)	(5,000,000)
Fair Value	987,000,000	548,000,000
Agency - Residential
Available-for-sale securities
Amortized Cost	811,000,000	913,000,000
Gross Unrealized Gains	0	1,000,000
Gross Unrealized Losses	(17,000,000)	(16,000,000)
Fair Value	794,000,000	898,000,000
Municipal obligations
Available-for-sale securities
Amortized Cost	35,000,000	34,000,000
Gross Unrealized Gains	0	0
Gross Unrealized Losses	(1,000,000)	0
Fair Value	34,000,000	$ 34,000,000
Corporate debt obligations
Available-for-sale securities
Amortized Cost	37,000,000
Gross Unrealized Gains	1,000,000
Gross Unrealized Losses	0
Fair Value	$ 38,000,000

Investment Securities (Availabl

Investment Securities (Available-for-sale and Held-to-maturity Securities, Unrealized Losses) (Details)	12 Months Ended
	Dec. 31, 2017USD ($)security	Dec. 31, 2016USD ($)security	Dec. 31, 2015USD ($)
Schedule of Available-for-sale Securities
Purchase of available-for-sale securities	$ 904,000,000	$ 680,000,000	$ 1,148,000,000
Purchase of investment securities held-to-maturity	0	15,000,000	217,000,000
Proceeds from the sale of HTM securities	0	0	0
Investment securities pledged as collateral	2,000,000,000	879,000,000	14,000,000
Agency - Commercial
Schedule of Available-for-sale Securities
Held-to-maturity Securities, Unrealized Loss Position with Duration 12 Months and Over, Fair Value	$ 348,000,000	$ 0
Held-to-maturity Securities, Unrealized Loss Position with Duration 12 Months and Over, Number of Securities | security	25	0
Held-to-maturity Securities, Unrealized Loss Position with Duration 12 Months and Over, Unrealized Loss	$ (8,000,000)	$ 0
Held-to-maturity Securities, Unrealized Loss Position with Duration Under 12 Months, Fair Value	$ 99,000,000	$ 528,000,000
Held-to-maturity Securities, Unrealized Loss Position with Duration Under 12 Months, Number of Securities | security	8	34
Held-to-maturity Securities, Unrealized Loss Position with Duration Under 12 Months, Unrealized Loss	$ (1,000,000)	$ (6,000,000)
Agency - Residential
Schedule of Available-for-sale Securities
Held-to-maturity Securities, Unrealized Loss Position with Duration 12 Months and Over, Fair Value	$ 111,000,000	$ 0
Held-to-maturity Securities, Unrealized Loss Position with Duration 12 Months and Over, Number of Securities | security	16	0
Held-to-maturity Securities, Unrealized Loss Position with Duration 12 Months and Over, Unrealized Loss	$ (3,000,000)	$ 0
Held-to-maturity Securities, Unrealized Loss Position with Duration Under 12 Months, Fair Value	$ 293,000,000	$ 385,000,000
Held-to-maturity Securities, Unrealized Loss Position with Duration Under 12 Months, Number of Securities | security	43	43
Held-to-maturity Securities, Unrealized Loss Position with Duration Under 12 Months, Unrealized Loss	$ (3,000,000)	$ (4,000,000)
US Government-sponsored Enterprises Debt Securities
Schedule of Available-for-sale Securities
Purchase of available-for-sale securities	904,000,000	680,000,000
AFS securities sold	289,000,000	291,000,000	170,000,000
Gain on sale of AFS securities	3,000,000	4,000,000	$ 3,000,000
Agency - Commercial
Schedule of Available-for-sale Securities
Available-for-sale Securities, Unrealized Loss Position with Duration 12 Months and Over, Fair Value	$ 218,000,000	$ 6,000,000
Available-for-sale Securities, Unrealized Loss Position with Duration 12 Months and Over, Number of Securities | security	20	1
Available-for-sale Securities, Unrealized Loss Position with Duration 12 Months and Over, Unrealized Loss	$ (7,000,000)	$ 0
Available-for-sale Securities, Unrealized Loss Position with Duration Under 12 Months, Fair Value	$ 744,000,000	$ 345,000,000
Available-for-sale Securities, Unrealized Loss Position with Duration Under 12 Months, Number of Securities | security	41	29
Available-for-sale Securities, Unrealized Loss Position with Duration Under 12 Months, Unrealized Loss	$ (11,000,000)	$ (5,000,000)
Agency - Residential
Schedule of Available-for-sale Securities
Available-for-sale Securities, Unrealized Loss Position with Duration 12 Months and Over, Fair Value	$ 452,000,000	$ 0
Available-for-sale Securities, Unrealized Loss Position with Duration 12 Months and Over, Number of Securities | security	36	0
Available-for-sale Securities, Unrealized Loss Position with Duration 12 Months and Over, Unrealized Loss	$ (14,000,000)	$ 0
Available-for-sale Securities, Unrealized Loss Position with Duration Under 12 Months, Fair Value	$ 263,000,000	$ 748,000,000
Available-for-sale Securities, Unrealized Loss Position with Duration Under 12 Months, Number of Securities | security	33	55
Available-for-sale Securities, Unrealized Loss Position with Duration Under 12 Months, Unrealized Loss	$ (3,000,000)	$ (16,000,000)
Municipal obligations
Schedule of Available-for-sale Securities
Available-for-sale Securities, Unrealized Loss Position with Duration 12 Months and Over, Fair Value	$ 6,000,000	$ 0
Available-for-sale Securities, Unrealized Loss Position with Duration 12 Months and Over, Number of Securities | security	3	0
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	$ 22,000,000	$ 17,000,000
Available-for-sale Securities, Unrealized Loss Position with Duration Under 12 Months, Number of Securities | security	9	8
Available-for-sale Securities, Unrealized Loss Position with Duration Under 12 Months, Unrealized Loss	$ 0	$ 0
Corporate debt obligations
Schedule of Available-for-sale Securities
Available-for-sale Securities, Unrealized Loss Position with Duration 12 Months and Over, Fair Value	$ 0
Available-for-sale Securities, Unrealized Loss Position with Duration 12 Months and Over, Number of Securities | security	0
Available-for-sale Securities, Unrealized Loss Position with Duration 12 Months and Over, Unrealized Loss	$ 0
Available-for-sale Securities, Unrealized Loss Position with Duration Under 12 Months, Fair Value	$ 3,000,000
Available-for-sale Securities, Unrealized Loss Position with Duration Under 12 Months, Number of Securities | security	1
Available-for-sale Securities, Unrealized Loss Position with Duration Under 12 Months, Unrealized Loss	$ 0

Investment Securities (Contract

Investment Securities (Contractual Maturity) (Details) - USD ($) $ in Millions	Dec. 31, 2017	Dec. 31, 2016
Available-for-sale Securities, Maturities, Amortized Cost
Due after one year through five years	$ 10
Due after five years through 10 years	45
Due after 10 years	1,832
Total, amortized cost	1,887
Available-for-sale Securities, Maturities, Fair Value
Due after one year through five years	10
Due after five years through 10 years	46
Due after 10 years	1,797
Fair Value	$ 1,853	$ 1,480
Available-for-sale Securities, Maturities, Weighted Average Yield
Due after one year through five years, weighted average yield (as a percent)	2.58%
Due after five years through ten years, weighted average yield (as a percent)	4.85%
Due after ten years, weighted average yield (as a percent)	2.40%
Held-to-maturity Securities, Maturities, Amortized Cost
Due after one year through five years	$ 35
Due after five years through 10 years	26
Due after 10 years	878
Amortized Cost	939	1,093
Held-to-Maturity Securities, Maturities, Fair Value
Due after one year through five years	35
Due after five years through 10 years	26
Due after 10 years	863
Fair Value	$ 924	$ 1,084
Held-to-maturity Securities, Maturities, Weighted Average Yield
Due after one year through five years, weighted-average yield (percent)	2.48%
Due after five years through 10 years, weighted-average yield (percent)	2.52%
Due after 10 years, weighted-average yield (percent)	2.44%

Loans Held-for-Sale (Details)

Loans Held-for-Sale (Details) - USD ($) $ in Millions	3 Months Ended												12 Months Ended
	Dec. 31, 2017	Sep. 30, 2017	Jun. 30, 2017	Mar. 31, 2017	Dec. 31, 2016	Sep. 30, 2016	Jun. 30, 2016	Mar. 31, 2016	Dec. 31, 2015	Sep. 30, 2015	Jun. 30, 2015	Mar. 31, 2015	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Accounts, Notes, Loans and Financing Receivable
Loans held-for-sale	$ 4,321				$ 3,177								$ 4,321	$ 3,177
Net gain on loan sales	79	$ 75	$ 66	$ 48	57	$ 94	$ 90	$ 75	$ 46	$ 68	$ 83	$ 91	268	316	$ 288
Loans held-for-sale recorded at lower of cost or fair value	$ 21				$ 32								21	32
Loans held-for-sale
Accounts, Notes, Loans and Financing Receivable
Net gain on loan sales													$ 267	$ 301	$ 288

Loans Held-for-Investment (Deta

Loans Held-for-Investment (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016
Loans and Leases Receivable, Net Amount [Abstract]
Loans held-for-investment, net	$ 7,713	$ 6,065
Current Fiscal Year End Date	--12-31
Total consumer loans
Loans and Leases Receivable, Net Amount [Abstract]
Loans held-for-investment, net	$ 3,443	2,798
Residential first mortgage
Loans and Leases Receivable, Net Amount [Abstract]
Loans held-for-investment, net	2,754	2,327
Home Equity
Loans and Leases Receivable, Net Amount [Abstract]
Loans held-for-investment, net	664	443
Other
Loans and Leases Receivable, Net Amount [Abstract]
Loans held-for-investment, net	25	28
Total commercial loans
Loans and Leases Receivable, Net Amount [Abstract]
Loans held-for-investment, net	4,270	3,267
Commercial real estate
Loans and Leases Receivable, Net Amount [Abstract]
Loans held-for-investment, net	1,932	1,261
Commercial real estate | Commercial Borrower
Loans and Leases Receivable, Net Amount [Abstract]
Loans held-for-investment, net	307	244
Commercial and industrial
Loans and Leases Receivable, Net Amount [Abstract]
Loans held-for-investment, net	1,196	769
Warehouse lending
Loans and Leases Receivable, Net Amount [Abstract]
Loans held-for-investment, net	$ 1,142	$ 1,237

Loans Held-for-Investment (Loan

Loans Held-for-Investment (Loans Held-for-sale Narrative) (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Loans held-for-investment
Accounts, Notes, Loans and Financing Receivable
Loans pledged as collateral	$ 7,100	$ 5,300
Residential first mortgage
Accounts, Notes, Loans and Financing Receivable
Unpaid principal balance	127	1,200	$ 1,000
Net (loss) gain on sale of assets		14	1
Purchases of receivables	8	175
Premium paid on significant purchases		1
HELOC
Accounts, Notes, Loans and Financing Receivable
Purchases of receivables	250		197
Premium paid on significant purchases	9		7
Nonperforming
Accounts, Notes, Loans and Financing Receivable
Unpaid principal balance		110
Net (loss) gain on sale of assets		$ (2)
Nonperforming | Residential first mortgage
Accounts, Notes, Loans and Financing Receivable
Unpaid principal balance	25		$ 436
Net (loss) gain on sale of assets	$ 2

Loans Held-for-Investment (Allo

Loans Held-for-Investment (Allowance for Loan Losses Rollforward) (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Allowance for Loan Losses
Beginning balance ALLL	$ 142	$ 187	$ 297
Charge-offs	(14)	(36)	(101)
Recoveries	6	6	10
Provision (benefit)	6	(15)	(19)
Ending balance ALLL	140	142	187
Residential first mortgage
Allowance for Loan Losses
Charge-offs	(1)	(8)	(69)
LGG
Allowance for Loan Losses
Charge-offs	(4)	(14)	(3)
Residential first mortgage
Allowance for Loan Losses
Beginning balance ALLL	65	116	234
Charge-offs	(8)	(29)	(87)
Recoveries	1	2	3
Provision (benefit)	(11)	(24)	(34)
Ending balance ALLL	47	65	116
Home Equity
Allowance for Loan Losses
Beginning balance ALLL	24	32	31
Charge-offs	(3)	(4)	(7)
Recoveries	2	0	2
Provision (benefit)	(1)	(4)	6
Ending balance ALLL	22	24	32
Other
Allowance for Loan Losses
Beginning balance ALLL	1	2	1
Charge-offs	(2)	(3)	(4)
Recoveries	1	3	3
Provision (benefit)	1	(1)	2
Ending balance ALLL	1	1	2
Commercial real estate
Allowance for Loan Losses
Beginning balance ALLL	28	18	17
Charge-offs	(1)	0	0
Recoveries	1	1	2
Provision (benefit)	17	9	(1)
Ending balance ALLL	45	28	18
Commercial and industrial
Allowance for Loan Losses
Beginning balance ALLL	17	13	11
Charge-offs	0	0	(3)
Recoveries	1	0	0
Provision (benefit)	1	4	5
Ending balance ALLL	19	17	13
Warehouse lending
Allowance for Loan Losses
Beginning balance ALLL	7	6	3
Charge-offs	0	0	0
Recoveries	0	0	0
Provision (benefit)	(1)	1	3
Ending balance ALLL	$ 6	7	$ 6
Government guarantees
Allowance for Loan Losses
Provision (benefit)		$ 7

Loans Held-for-Investment (Al62

Loans Held-for-Investment (Allowance for Loan Losses Additional Disclosures) (Details) - USD ($) $ in Millions	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Allowance for Loan Losses, Additional Disclosure
Loans held-for-investment, individually evaluated	$ 61	$ 75
Loans held-for-investment, collectively evaluated	7,640	5,918
Total loans	7,701	5,993
Allowance for loan losses, individually evaluated	16	13
Allowance for loan losses, collectively evaluated	124	129
Total allowance for loan losses	140	142	$ 187	$ 297
Residential first mortgage
Allowance for Loan Losses, Additional Disclosure
Loans held-for-investment, individually evaluated	34	46
Loans held-for-investment, collectively evaluated	2,712	2,274
Total loans	2,746	2,320
Allowance for loan losses, individually evaluated	6	5
Allowance for loan losses, collectively evaluated	41	60
Total allowance for loan losses	47	65	116	234
Home Equity
Allowance for Loan Losses, Additional Disclosure
Loans held-for-investment, individually evaluated	27	29
Loans held-for-investment, collectively evaluated	633	349
Total loans	660	378
Allowance for loan losses, individually evaluated	10	8
Allowance for loan losses, collectively evaluated	12	16
Total allowance for loan losses	22	24	32	31
Other
Allowance for Loan Losses, Additional Disclosure
Loans held-for-investment, individually evaluated	0	0
Loans held-for-investment, collectively evaluated	25	28
Total loans	25	28
Allowance for loan losses, individually evaluated	0	0
Allowance for loan losses, collectively evaluated	1	1
Total allowance for loan losses	1	1	2	1
Commercial real estate
Allowance for Loan Losses, Additional Disclosure
Loans held-for-investment, individually evaluated	0	0
Loans held-for-investment, collectively evaluated	1,932	1,261
Total loans	1,932	1,261
Allowance for loan losses, individually evaluated	0	0
Allowance for loan losses, collectively evaluated	45	28
Total allowance for loan losses	45	28	18	17
Commercial and industrial
Allowance for Loan Losses, Additional Disclosure
Loans held-for-investment, individually evaluated	0	0
Loans held-for-investment, collectively evaluated	1,196	769
Total loans	1,196	769
Allowance for loan losses, individually evaluated	0	0
Allowance for loan losses, collectively evaluated	19	17
Total allowance for loan losses	19	17	13	11
Warehouse lending
Allowance for Loan Losses, Additional Disclosure
Loans held-for-investment, individually evaluated	0	0
Loans held-for-investment, collectively evaluated	1,142	1,237
Total loans	1,142	1,237
Allowance for loan losses, individually evaluated	0	0
Allowance for loan losses, collectively evaluated	6	7
Total allowance for loan losses	$ 6	$ 7	$ 6	$ 3

Loans Held-for-Investment (Past

Loans Held-for-Investment (Past Due Loans) (Details) - USD ($)	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Loans Held-for-Investment, Aging
Total Past Due	$ 34,000,000	$ 50,000,000
Current	7,679,000,000	6,015,000,000
Net investment in commercial financing leases	7,713,000,000	6,065,000,000
90 days or greater past due, fair value option	4,000,000	13,000,000
Interest lost on nonaccrual loans	1,000,000	2,000,000	$ 6,000,000
90 days and still accruing	0	0
Consumer loans
Loans Held-for-Investment, Aging
Total Past Due	34,000,000	50,000,000
Current	3,409,000,000	2,748,000,000
Net investment in commercial financing leases	3,443,000,000	2,798,000,000
Residential first mortgage
Loans Held-for-Investment, Aging
Total Past Due	27,000,000	35,000,000
Current	2,727,000,000	2,292,000,000
Net investment in commercial financing leases	2,754,000,000	2,327,000,000
Home Equity
Loans Held-for-Investment, Aging
Total Past Due	7,000,000	14,000,000
Current	657,000,000	429,000,000
Net investment in commercial financing leases	664,000,000	443,000,000
Other
Loans Held-for-Investment, Aging
Total Past Due	0	1,000,000
Current	25,000,000	27,000,000
Net investment in commercial financing leases	25,000,000	28,000,000
Total commercial loans
Loans Held-for-Investment, Aging
Total Past Due	0	0
Current	4,270,000,000	3,267,000,000
Net investment in commercial financing leases	4,270,000,000	3,267,000,000
Commercial real estate
Loans Held-for-Investment, Aging
Total Past Due	0	0
Current	1,932,000,000	1,261,000,000
Net investment in commercial financing leases	1,932,000,000	1,261,000,000
Commercial and industrial
Loans Held-for-Investment, Aging
Total Past Due	0	0
Current	1,196,000,000	769,000,000
Net investment in commercial financing leases	1,196,000,000	769,000,000
Warehouse lending
Loans Held-for-Investment, Aging
Total Past Due	0	0
Current	1,142,000,000	1,237,000,000
Net investment in commercial financing leases	1,142,000,000	1,237,000,000
30-59 Days Past Due
Loans Held-for-Investment, Aging
Total Past Due	3,000,000	8,000,000
30-59 Days Past Due | Consumer loans
Loans Held-for-Investment, Aging
Total Past Due	3,000,000	8,000,000
30-59 Days Past Due | Residential first mortgage
Loans Held-for-Investment, Aging
Total Past Due	2,000,000	6,000,000
30-59 Days Past Due | Home Equity
Loans Held-for-Investment, Aging
Total Past Due	1,000,000	1,000,000
30-59 Days Past Due | Other
Loans Held-for-Investment, Aging
Total Past Due	0	1,000,000
30-59 Days Past Due | Total commercial loans
Loans Held-for-Investment, Aging
Total Past Due	0	0
30-59 Days Past Due | Commercial real estate
Loans Held-for-Investment, Aging
Total Past Due	0	0
30-59 Days Past Due | Commercial and industrial
Loans Held-for-Investment, Aging
Total Past Due	0	0
30-59 Days Past Due | Warehouse lending
Loans Held-for-Investment, Aging
Total Past Due	0	0
60-89 Days Past Due
Loans Held-for-Investment, Aging
Total Past Due	2,000,000	2,000,000
60-89 Days Past Due | Consumer loans
Loans Held-for-Investment, Aging
Total Past Due	2,000,000	2,000,000
60-89 Days Past Due | Residential first mortgage
Loans Held-for-Investment, Aging
Total Past Due	2,000,000	0
60-89 Days Past Due | Home Equity
Loans Held-for-Investment, Aging
Total Past Due	0	2,000,000
60-89 Days Past Due | Other
Loans Held-for-Investment, Aging
Total Past Due	0	0
60-89 Days Past Due | Total commercial loans
Loans Held-for-Investment, Aging
Total Past Due	0	0
60-89 Days Past Due | Commercial real estate
Loans Held-for-Investment, Aging
Total Past Due	0	0
60-89 Days Past Due | Commercial and industrial
Loans Held-for-Investment, Aging
Total Past Due	0	0
60-89 Days Past Due | Warehouse lending
Loans Held-for-Investment, Aging
Total Past Due	0	0
90 Days or Greater Past Due
Loans Held-for-Investment, Aging
Total Past Due	29,000,000	40,000,000
90 Days or Greater Past Due | Consumer loans
Loans Held-for-Investment, Aging
Total Past Due	29,000,000	40,000,000
90 Days or Greater Past Due | Residential first mortgage
Loans Held-for-Investment, Aging
Total Past Due	23,000,000	29,000,000
90 Days or Greater Past Due | Home Equity
Loans Held-for-Investment, Aging
Total Past Due	6,000,000	11,000,000
90 Days or Greater Past Due | Other
Loans Held-for-Investment, Aging
Total Past Due	0	0
90 Days or Greater Past Due | Total commercial loans
Loans Held-for-Investment, Aging
Total Past Due	0	0
90 Days or Greater Past Due | Commercial real estate
Loans Held-for-Investment, Aging
Total Past Due	0	0
90 Days or Greater Past Due | Commercial and industrial
Loans Held-for-Investment, Aging
Total Past Due	0	0
90 Days or Greater Past Due | Warehouse lending
Loans Held-for-Investment, Aging
Total Past Due	$ 0	$ 0

Loans Held-for-Investment (Trou

Loans Held-for-Investment (Troubled Debt Restructurings) (Details) - USD ($) $ in Millions	Dec. 31, 2017	Dec. 31, 2016
Troubled Debt Restructurings
TDR balance	$ 59	$ 85
Allowance for loan losses on TDR loans	13	9
TDR loans under fair value option	3	25
Consumer loans | Residential first mortgage
Troubled Debt Restructurings
TDR balance	31	33
Consumer loans | Home Equity
Troubled Debt Restructurings
TDR balance	28	52
Performing
Troubled Debt Restructurings
TDR balance	43	67
Performing | Consumer loans | Residential first mortgage
Troubled Debt Restructurings
TDR balance	19	22
Performing | Consumer loans | Home Equity
Troubled Debt Restructurings
TDR balance	24	45
Nonperforming
Troubled Debt Restructurings
TDR balance	16	18
Nonperforming | Consumer loans | Residential first mortgage
Troubled Debt Restructurings
TDR balance	12	11
Nonperforming | Consumer loans | Home Equity
Troubled Debt Restructurings
TDR balance	$ 4	$ 7

Loans Held-for-Investment (Tr65

Loans Held-for-Investment (Troubled Debt Restructuring Detail) (Details) $ in Millions	12 Months Ended
	Dec. 31, 2017USD ($)loansloan	Dec. 31, 2016USD ($)loansloan	Dec. 31, 2015USD ($)loansloan
Troubled Debt Restructurings
Number of Accounts | loan	98	167	698
Pre-Modification Unpaid Principal Balance	$ 10	$ 15	$ 102
Post-Modification Unpaid Principal Balance	9	14	98
Increase (Decrease) in Allowance at Modification	(1)	0	(2)
Modifications subsequent to default (less than)	$ 1	$ 1	$ 1
Number of Accounts | loans	1	8	8
Residential first mortgage
Troubled Debt Restructurings
Number of Accounts | loan	16	23	325
Pre-Modification Unpaid Principal Balance	$ 4	$ 4	$ 81
Post-Modification Unpaid Principal Balance	4	5	80
Increase (Decrease) in Allowance at Modification	$ 0	$ 0	$ (2)
Number of Accounts | loans	1	1	3
Home Equity
Troubled Debt Restructurings
Number of Accounts | loan	82	143	370
Pre-Modification Unpaid Principal Balance	$ 6	$ 9	$ 21
Post-Modification Unpaid Principal Balance	5	8	18
Increase (Decrease) in Allowance at Modification	$ (1)	$ 0	$ 0
Number of Accounts | loans	0	7	5
Commercial and industrial
Troubled Debt Restructurings
Number of Accounts | loan		1
Pre-Modification Unpaid Principal Balance		$ 2
Post-Modification Unpaid Principal Balance		1
Increase (Decrease) in Allowance at Modification		$ 0
Other consumer
Troubled Debt Restructurings
Number of Accounts | loan			3
Pre-Modification Unpaid Principal Balance			$ 0
Post-Modification Unpaid Principal Balance			0
Increase (Decrease) in Allowance at Modification			$ 0

Loans Held-for-Investment (Impa

Loans Held-for-Investment (Impaired Loans) (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Financing Receivable, Impaired
With no related allowance recorded, recorded investment	$ 11	$ 6
With no related allowance recorded, unpaid principal balance	12	6
With an allowance recorded, recorded investment	46	69
With an allowance recorded, unpaid principal balance	49	69
With an allowance recorded, related allowance	16	13
Total recorded investment	57	75
Total unpaid principal balance	61	75
Average Recorded Investment	66	84	$ 191
Interest Income Recognized	2	3	5
Residential first mortgage
Financing Receivable, Impaired
With no related allowance recorded, recorded investment	11	6
With no related allowance recorded, unpaid principal balance	12	6
With an allowance recorded, recorded investment	22	40
With an allowance recorded, unpaid principal balance	22	40
With an allowance recorded, related allowance	6	5
Total recorded investment	33	46
Total unpaid principal balance	34	46
Average Recorded Investment	38	52	150
Interest Income Recognized	1	1	5
Home Equity
Financing Receivable, Impaired
With an allowance recorded, recorded investment	24	29
With an allowance recorded, unpaid principal balance	27	29
With an allowance recorded, related allowance	10	8
Total recorded investment	24	29
Total unpaid principal balance	27	29
Average Recorded Investment	28	30	39
Interest Income Recognized	1	2	0
Commercial and industrial
Financing Receivable, Impaired
Average Recorded Investment	0	2	2
Interest Income Recognized	$ 0	$ 0	$ 0

Loans Held-for-Investment (Cred

Loans Held-for-Investment (Credit Quality Indicators) (Details) - USD ($) $ in Millions	Dec. 31, 2017	Dec. 31, 2016
Financing Receivable, Recorded Investment
Loans held-for-investment	$ 7,701	$ 5,993
Loans held-for-investment, net	7,713	6,065
Total consumer loans
Financing Receivable, Recorded Investment
Loans held-for-investment, net	3,443	2,798
Total consumer loans | Pass
Financing Receivable, Recorded Investment
Loans held-for-investment	3,364	2,687
Total consumer loans | Watch
Financing Receivable, Recorded Investment
Loans held-for-investment	48	69
Total consumer loans | Special Mention
Financing Receivable, Recorded Investment
Loans held-for-investment	0	0
Total consumer loans | Substandard
Financing Receivable, Recorded Investment
Loans held-for-investment	31	42
Residential first mortgage
Financing Receivable, Recorded Investment
Loans held-for-investment	2,746	2,320
Loans held-for-investment, net	2,754	2,327
Residential first mortgage | Pass
Financing Receivable, Recorded Investment
Loans held-for-investment	2,706	2,273
Residential first mortgage | Watch
Financing Receivable, Recorded Investment
Loans held-for-investment	23	23
Residential first mortgage | Special Mention
Financing Receivable, Recorded Investment
Loans held-for-investment	0	0
Residential first mortgage | Substandard
Financing Receivable, Recorded Investment
Loans held-for-investment	25	31
Home Equity
Financing Receivable, Recorded Investment
Loans held-for-investment	660	378
Loans held-for-investment, net	664	443
Home Equity | Pass
Financing Receivable, Recorded Investment
Loans held-for-investment	633	386
Home Equity | Watch
Financing Receivable, Recorded Investment
Loans held-for-investment	25	46
Home Equity | Special Mention
Financing Receivable, Recorded Investment
Loans held-for-investment	0	0
Home Equity | Substandard
Financing Receivable, Recorded Investment
Loans held-for-investment	6	11
Other
Financing Receivable, Recorded Investment
Loans held-for-investment	25	28
Loans held-for-investment, net	25	28
Other | Pass
Financing Receivable, Recorded Investment
Loans held-for-investment	25	28
Other | Watch
Financing Receivable, Recorded Investment
Loans held-for-investment	0	0
Other | Special Mention
Financing Receivable, Recorded Investment
Loans held-for-investment	0	0
Other | Substandard
Financing Receivable, Recorded Investment
Loans held-for-investment	0	0
Total commercial loans
Financing Receivable, Recorded Investment
Loans held-for-investment, net	4,270	3,267
Total commercial loans | Pass
Financing Receivable, Recorded Investment
Loans held-for-investment	4,051	3,071
Total commercial loans | Watch
Financing Receivable, Recorded Investment
Loans held-for-investment	183	102
Total commercial loans | Special Mention
Financing Receivable, Recorded Investment
Loans held-for-investment	31	77
Total commercial loans | Substandard
Financing Receivable, Recorded Investment
Loans held-for-investment	5	17
Commercial real estate
Financing Receivable, Recorded Investment
Loans held-for-investment	1,932	1,261
Loans held-for-investment, net	1,932	1,261
Commercial real estate | Pass
Financing Receivable, Recorded Investment
Loans held-for-investment	1,902	1,225
Commercial real estate | Watch
Financing Receivable, Recorded Investment
Loans held-for-investment	23	27
Commercial real estate | Special Mention
Financing Receivable, Recorded Investment
Loans held-for-investment	7	3
Commercial real estate | Substandard
Financing Receivable, Recorded Investment
Loans held-for-investment	0	6
Commercial and industrial
Financing Receivable, Recorded Investment
Loans held-for-investment	1,196	769
Loans held-for-investment, net	1,196	769
Commercial and industrial | Pass
Financing Receivable, Recorded Investment
Loans held-for-investment	1,135	678
Commercial and industrial | Watch
Financing Receivable, Recorded Investment
Loans held-for-investment	32	59
Commercial and industrial | Special Mention
Financing Receivable, Recorded Investment
Loans held-for-investment	24	21
Commercial and industrial | Substandard
Financing Receivable, Recorded Investment
Loans held-for-investment	5	11
Warehouse lending
Financing Receivable, Recorded Investment
Loans held-for-investment	1,142	1,237
Loans held-for-investment, net	1,142	1,237
Warehouse lending | Pass
Financing Receivable, Recorded Investment
Loans held-for-investment	1,014	1,168
Warehouse lending | Watch
Financing Receivable, Recorded Investment
Loans held-for-investment	128	16
Warehouse lending | Special Mention
Financing Receivable, Recorded Investment
Loans held-for-investment	0	53
Warehouse lending | Substandard
Financing Receivable, Recorded Investment
Loans held-for-investment	$ 0	$ 0

Loans with Government Guarant68

Loans with Government Guarantees (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016
Loans and Leases Receivable Disclosure [Abstract]
Debt instrument, term	10 years
Loans with government guarantees	$ 271	$ 365
Repossessed assets and associated claims	$ 84	$ 135

Repossessed Assets (Details)

Repossessed Assets (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Repossessed Assets
Repossessed assets	$ 14	$ 17	$ 19
Repossessed Assets
Beginning balance	14	17	19
Additions, net	18	19	29
Disposals	(14)	(19)	(24)
Net (write down) gain on disposal	(9)	(2)	0
Transfers out	(1)	(1)	(7)
Ending balance	8	14	$ 17
One-to-four family properties
Repossessed Assets
Repossessed assets	11	11
Repossessed Assets
Beginning balance	11
Ending balance	5	11
Commercial properties
Repossessed Assets
Repossessed assets	3	3
Repossessed Assets
Beginning balance	3
Ending balance	$ 3	$ 3

Variable Interest Entities (Det

Variable Interest Entities (Details) $ in Millions	12 Months Ended
	Dec. 31, 2017USD ($)entityloan	Dec. 31, 2016USD ($)entityloan
Securitized Loans [Abstract]
Number of variable interest entities	0	0
FSTAR 2007-1 Mortgage Securitization
Securitized Loans [Abstract]
Number of variable interest entities	1
Number of loans | loan	1,911	2,453
Aggregate principal balance | $	$ 65	$ 89

Federal Home Loan Bank Stock (D

Federal Home Loan Bank Stock (Details) - USD ($)	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Federal Home Loan Bank Stock [Abstract]
Federal home loan bank stock	$ 303,000,000	$ 180,000,000
Federal Home Loan Bank stock, minimum investment requirement, percentage of unpaid principal of mortgage loans, home purchase contracts and similar obligations	1.00%
Federal Home Loan Bank minimum percentage of advances required held	4.50%
Payments to acquire FHLB stock	$ 123,000,000	10,000,000	$ 57,000,000
Proceeds from redemption of FHLB stock	0	0	42,000,000
Dividend income	$ 9,000,000	$ 7,000,000	$ 6,000,000

Premises and Equipment (Details

Premises and Equipment (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016
Premises and Equipment, Net, by Type
Premises and equipment, gross	$ 623	$ 533
Less accumulated depreciation	(293)	(258)
Premises and equipment, net	$ 330	275
Minimum
Premises and Equipment, Net, by Type
Estimated useful lives	3 years
Maximum
Premises and Equipment, Net, by Type
Estimated useful lives	30 years
Land
Premises and Equipment, Net, by Type
Premises and equipment, gross	$ 61	59
Office buildings and improvements
Premises and Equipment, Net, by Type
Premises and equipment, gross	$ 159	153
Office buildings and improvements | Minimum
Premises and Equipment, Net, by Type
Estimated useful lives	15 years
Office buildings and improvements | Maximum
Premises and Equipment, Net, by Type
Estimated useful lives	31 years 6 months
Computer hardware and software
Premises and Equipment, Net, by Type
Premises and equipment, gross	$ 300	256
Computer hardware and software | Minimum
Premises and Equipment, Net, by Type
Estimated useful lives	3 years
Computer hardware and software | Maximum
Premises and Equipment, Net, by Type
Estimated useful lives	7 years
Furniture, fixtures and equipment
Premises and Equipment, Net, by Type
Premises and equipment, gross	$ 63	61
Furniture, fixtures and equipment | Minimum
Premises and Equipment, Net, by Type
Estimated useful lives	5 years
Furniture, fixtures and equipment | Maximum
Premises and Equipment, Net, by Type
Estimated useful lives	7 years
Leased equipment
Premises and Equipment, Net, by Type
Premises and equipment, gross	$ 40	$ 4
Leased equipment | Minimum
Premises and Equipment, Net, by Type
Estimated useful lives	3 years
Leased equipment | Maximum
Premises and Equipment, Net, by Type
Estimated useful lives	10 years

Premises and Equipment - Narrat

Premises and Equipment - Narratives (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Property, Plant and Equipment [Abstract]
Depreciation	$ 39	$ 31	$ 26
Lease rental expense	$ 9	$ 5	$ 7

Premises and Equipment (Operati

Premises and Equipment (Operating Leases) (Details) $ in Millions	Dec. 31, 2017USD ($)
Operating Leases, Future Minimum Payments
2,018	$ 8
2,019	7
2,020	5
2,021	3
2,022	1
Thereafter	2
Total	$ 26

Mortgage Servicing Rights (Resi

Mortgage Servicing Rights (Residential MSRs, Fair value) (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Servicing Asset at Fair Value
Balance at beginning of period	$ 335
Changes in fair value due to:
Fair value of MSRs at end of period	291	$ 335
Residential first mortgage
Servicing Asset at Fair Value
Balance at beginning of period	335	296	$ 258
Additions from loans sold with servicing retained	288	228	260
Reductions from sales	(310)	(84)	(176)
Changes in fair value due to:
Decrease in MSR value due to pay-offs, pay-downs, and run-off	(22)	(62)	(43)
Changes in estimates of fair value	0	(43)	(3)
Fair value of MSRs at end of period	$ 291	$ 335	$ 296

Mortgage Servicing Rights (Sche

Mortgage Servicing Rights (Schedule of Sensitivity Analysis of Fair Value) (Details) - Mortgage servicing rights $ in Millions	12 Months Ended
	Dec. 31, 2017USD ($)$ / loan	Dec. 31, 2016USD ($)$ / loan
Servicing Assets at Fair Value
Option adjusted spread, Actual (percent)	6.29%	7.78%
Option adjusted spread, Fair value due to 10% adverse change	$ 286	$ 326
Option adjusted spread, Fair value due to 20% adverse change	$ 282	$ 318
Constant prepayment rate, Actual (percent)	9.93%	16.68%
Constant prepayment rate, Fair value due to 10% adverse change	$ 283	$ 322
Constant prepayment rate, Fair value due to 20% adverse change	$ 277	$ 311
Weighted average cost to service per loan, Actual (in usd per loan) | $ / loan	73	68.18
Weighted average cost to service per loan, Fair value due to 10% adverse change	$ 288	$ 330
Weighted average cost to service per loan, Fair value due to 20% adverse change	$ 286	$ 326

Mortgage Servicing Rights (Inco

Mortgage Servicing Rights (Income and Fees from Associated with Mortgage Servicing Asset and Mortgage Loan Subserviced) (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Servicing Assets at Fair Value
Gain related to the sale of MSRs		$ 4	$ 2
Residential first mortgage loans subserviced for others
Servicing Assets at Fair Value
Total (loss) return included in net return on mortgage servicing rights	$ 22	(26)	28
Residential first mortgage loans subserviced for others | Net (loss) return on mortgage servicing rights
Servicing Assets at Fair Value
Servicing fees, ancillary income and late fees	60	81	69
Fair value adjustments	(22)	(109)	(44)
Gain (loss) on MSR derivatives	(8)	0	5
Net transaction costs	(8)	2	(2)
Residential first mortgage loans subserviced for others | Loan Administration Income
Servicing Assets at Fair Value
Servicing fees, ancillary income and late fees	35	29	33
Other servicing charges	(14)	(11)	(7)
Total income on mortgage loans subserviced, included in loan administration	$ 21	$ 18	$ 26

Derivative Financial Instrume78

Derivative Financial Instruments (Narrative) (Details) - USD ($) $ in Millions	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Derivative Instruments, Gain (Loss)
Stockholders' equity	$ 1,399	$ 1,336	$ 1,529	$ 1,373
Interest rate cash flow hedge gain (loss) to be reclassified during next 12 months	2
Right to claim cash	26	54
Obligation to return cash	18	74
Not Designated as Hedging Instrument
Derivative Instruments, Gain (Loss)
Right to claim cash	9	21
Obligation to receive cash irrespective of position	7
Obligation to return cash	18	74
Designated as Hedging Instrument
Derivative Instruments, Gain (Loss)
Right to claim cash	19
Cash Flow Hedges
Derivative Instruments, Gain (Loss)
Stockholders' equity	$ 2	$ 1	$ (3)	$ 0

Derivative Financial Instrume79

Derivative Financial Instruments (Schedule of Changes in Fair Value) (Details) - USD ($) $ in Millions	Dec. 31, 2017	Dec. 31, 2016
Other liabilities
Liabilities
Notional Amount	$ 4,237	$ 3,754
Fair Value	10	54
Designated as Hedging Instrument | Interest rate swaps on FHLB advances
Assets
Fair Value	1	20
Liabilities
Fair Value		1
Designated as Hedging Instrument | Interest rate swaps on FHLB advances | Other assets
Assets
Notional Amount		600
Fair Value		20
Designated as Hedging Instrument | Interest rate swaps on FHLB advances | Other liabilities
Assets
Notional Amount	830
Fair Value	1
Liabilities
Notional Amount		230
Fair Value		1
Not Designated as Hedging Instrument
Assets
Fair Value	15	80
Liabilities
Fair Value	10	48
Not Designated as Hedging Instrument | Other assets
Assets
Notional Amount	9,313	14,145
Fair Value	39	104
Not Designated as Hedging Instrument | Futures
Assets
Fair Value		2
Liabilities
Fair Value	0	0
Not Designated as Hedging Instrument | Futures | Other assets
Assets
Notional Amount	1,597	4,621
Fair Value	0	2
Not Designated as Hedging Instrument | Futures | Other liabilities
Liabilities
Notional Amount	209	134
Fair Value	0	0
Not Designated as Hedging Instrument | Mortgage-backed securities forwards
Assets
Fair Value	4	43
Liabilities
Fair Value	6	11
Not Designated as Hedging Instrument | Mortgage-backed securities forwards | Other assets
Assets
Notional Amount	2,646	3,776
Fair Value	4	43
Not Designated as Hedging Instrument | Mortgage-backed securities forwards | Other liabilities
Liabilities
Notional Amount	3,197	1,893
Fair Value	6	11
Not Designated as Hedging Instrument | Rate lock commitments | Other assets
Assets
Notional Amount	3,629	3,517
Fair Value	24	24
Not Designated as Hedging Instrument | Rate lock commitments | Other liabilities
Liabilities
Notional Amount	214	598
Fair Value	0	6
Not Designated as Hedging Instrument | Interest rate swaps and swaptions
Assets
Fair Value	11	35
Not Designated as Hedging Instrument | Interest rate swaps and swaptions | Other assets
Assets
Notional Amount	1,441	2,231
Fair Value	11	35
Not Designated as Hedging Instrument | Interest rate swaps
Liabilities
Fair Value	4	37
Not Designated as Hedging Instrument | Interest rate swaps | Other liabilities
Liabilities
Notional Amount	617	1,129
Fair Value	$ 4	$ 37

Derivative Financial Instrume80

Derivative Financial Instruments (Master Netting Schedule) (Details) - USD ($) $ in Millions	Dec. 31, 2017	Dec. 31, 2016
Assets
Derivative, Collateral, Obligation to Return Cash	$ 18	$ 74
Liabilities
Gross Amounts Not Offset in the Statement of Financial Position, Cash Collateral	26	54
Central Counterparty Clearing House
Liabilities
Collateral Already Posted, Aggregate Fair Value		15
Designated as Hedging Instrument
Liabilities
Gross Amounts Not Offset in the Statement of Financial Position, Cash Collateral	19
Designated as Hedging Instrument | Interest rate swaps on FHLB advances
Assets
Gross Amount	1	20
Gross Amounts Offset in the Statement of Financial Position	0	1
Net Amount Presented in the Statement of Financial Position	1	19
Gross Amounts Not Offset in the Statement of Financial Position, Financial Instruments	0	0
Derivative, Collateral, Obligation to Return Cash		0
Liabilities
Gross Amount		1
Gross Amounts Offset in the Statement of Financial Position		1
Net Amount Presented in the Statement of Financial Position		0
Gross Amounts Not Offset in the Statement of Financial Position, Financial Instruments		0
Gross Amounts Not Offset in the Statement of Financial Position, Cash Collateral	17	33
Not Designated as Hedging Instrument
Assets
Gross Amount	15	80
Gross Amounts Offset in the Statement of Financial Position	0	0
Net Amount Presented in the Statement of Financial Position	15	80
Gross Amounts Not Offset in the Statement of Financial Position, Financial Instruments	0	0
Derivative, Collateral, Obligation to Return Cash	18	74
Liabilities
Gross Amount	10	48
Gross Amounts Offset in the Statement of Financial Position	0	0
Net Amount Presented in the Statement of Financial Position	10	48
Gross Amounts Not Offset in the Statement of Financial Position, Financial Instruments	0	0
Gross Amounts Not Offset in the Statement of Financial Position, Cash Collateral	9	21
Not Designated as Hedging Instrument | Futures
Assets
Gross Amount		2
Gross Amounts Offset in the Statement of Financial Position		0
Net Amount Presented in the Statement of Financial Position		2
Gross Amounts Not Offset in the Statement of Financial Position, Financial Instruments		0
Derivative, Collateral, Obligation to Return Cash		0
Liabilities
Gross Amount	0	0
Gross Amounts Offset in the Statement of Financial Position	0	0
Net Amount Presented in the Statement of Financial Position	0	0
Gross Amounts Not Offset in the Statement of Financial Position, Financial Instruments	0	0
Gross Amounts Not Offset in the Statement of Financial Position, Cash Collateral	2	1
Not Designated as Hedging Instrument | Mortgage-backed securities forwards
Assets
Gross Amount	4	43
Gross Amounts Offset in the Statement of Financial Position	0	0
Net Amount Presented in the Statement of Financial Position	4	43
Gross Amounts Not Offset in the Statement of Financial Position, Financial Instruments	0	0
Derivative, Collateral, Obligation to Return Cash	8	44
Liabilities
Gross Amount	6	11
Gross Amounts Offset in the Statement of Financial Position	0	0
Net Amount Presented in the Statement of Financial Position	6	11
Gross Amounts Not Offset in the Statement of Financial Position, Financial Instruments	0	0
Gross Amounts Not Offset in the Statement of Financial Position, Cash Collateral	2	0
Not Designated as Hedging Instrument | Interest rate swaps
Liabilities
Gross Amount	4	37
Gross Amounts Offset in the Statement of Financial Position	0	0
Net Amount Presented in the Statement of Financial Position	4	37
Gross Amounts Not Offset in the Statement of Financial Position, Financial Instruments	0	0
Gross Amounts Not Offset in the Statement of Financial Position, Cash Collateral	5	20
Not Designated as Hedging Instrument | Interest rate swaps and swaptions
Assets
Gross Amount	11	35
Gross Amounts Offset in the Statement of Financial Position	0	0
Net Amount Presented in the Statement of Financial Position	11	35
Gross Amounts Not Offset in the Statement of Financial Position, Financial Instruments	0	0
Derivative, Collateral, Obligation to Return Cash	$ 10	$ 30

Derivative Financial Instrume81

Derivative Financial Instruments (Schedule of Unrealized Gains or Losses) (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Derivative Instruments, Gain (Loss)
Net gain (loss) recognized in income on derivative instruments	$ (40)	$ 28	$ 14
Futures | Net (loss) return on mortgage servicing rights
Derivative Instruments, Gain (Loss)
Net gain (loss) recognized in income on derivative instruments	(1)	0	6
Interest rate swaps | Net (loss) return on mortgage servicing rights
Derivative Instruments, Gain (Loss)
Net gain (loss) recognized in income on derivative instruments	(11)	(5)	(2)
Interest rate swaps | Other noninterest income
Derivative Instruments, Gain (Loss)
Net gain (loss) recognized in income on derivative instruments	2	4	2
Mortgage-backed securities forwards | Net (loss) return on mortgage servicing rights
Derivative Instruments, Gain (Loss)
Net gain (loss) recognized in income on derivative instruments	4	5	1
Rate lock commitments and forward agency and loan sales | Net gain on loan sales
Derivative Instruments, Gain (Loss)
Net gain (loss) recognized in income on derivative instruments	(34)	26	9
Forward commitments | Other noninterest income
Derivative Instruments, Gain (Loss)
Net gain (loss) recognized in income on derivative instruments	$ 0	$ (2)	$ (2)

Deposit Accounts (Details)

Deposit Accounts (Details) - USD ($) $ in Millions	Dec. 31, 2017	Dec. 31, 2016
Deposits
Total deposits	$ 8,934	$ 8,800
Branch retail deposits
Deposits
Demand deposit accounts	931	852
Savings accounts	3,482	3,824
Money market demand accounts	124	138
Certificates of deposit/CDARS	1,491	1,055
Total deposits	6,028	5,869
Commercial deposits
Deposits
Demand deposit accounts	288	282
Savings accounts	71	63
Money market demand accounts	69	109
Certificates of deposit/CDARS	2	1
Total deposits	430	455
Retail deposits
Deposits
Total deposits	6,458	6,324
Government deposits
Deposits
Demand deposit accounts	251	250
Savings accounts	446	451
Certificates of deposit/CDARS	376	329
Total deposits	1,073	1,030
Wholesale deposits
Deposits
Total deposits	45	0
Company controlled deposits
Deposits
Total deposits	$ 1,358	$ 1,446

Deposit Accounts (Contractual M

Deposit Accounts (Contractual Maturities of Time Deposits over $250,000) (Details) - USD ($) $ in Millions	Dec. 31, 2017	Dec. 31, 2016
Contractual Maturities, Certificates of Deposit, $100,000 or More
Three months or less	$ 159	$ 126
Over three months to six months	128	116
Over six months to twelve months	173	146
One to two years	167	34
Thereafter	31	27
Total	$ 658	$ 449

Borrowings (Details)

Borrowings (Details) - USD ($) $ in Millions	3 Months Ended
	Dec. 31, 2016	Dec. 31, 2017
Federal Home Loan Bank, Advances, Branch of FHLB Bank
FHLB, current	$ 1,780	$ 4,260
FHLB, non-current	1,200	1,405
Total	2,980	5,665
Federal Home Loan Bank Advances
Federal Home Loan Bank, Advances, Branch of FHLB Bank
Payment for FHLB advances	250
Long-term fixed rate advances
Federal Home Loan Bank, Advances, Branch of FHLB Bank
FHLB, non-current	50	125
Short-term fixed rate term advances
Federal Home Loan Bank, Advances, Branch of FHLB Bank
FHLB, current	$ 1,780	$ 4,260
FHLB (interest rate)	0.62%	1.40%
Long-term fixed rate advances
Federal Home Loan Bank, Advances, Branch of FHLB Bank
FHLB (interest rate)	1.12%	1.76%
FHLB, non-current	$ 1,025	$ 1,130
Long-term fixed rate advances
Federal Home Loan Bank, Advances, Branch of FHLB Bank
FHLB (interest rate)	1.12%	1.41%
FHLB, non-current	$ 175	$ 275

Borrowings (Other Disclosures)

Borrowings (Other Disclosures) (Details) - USD ($)	Jul. 11, 2016	Dec. 31, 2017	Dec. 31, 2016
Federal Home Loan Bank, Advances
FHLB advances, maximum amount available		$ 7,000,000,000
FHLB advances, available collateral amount		5,700,000,000
FHLB advances, line of credit		763,000,000
FHLB, non-current		1,405,000,000	$ 1,200,000,000
Derivative cash received		830,000,000
Payment of interest on trust preferred securities		0
Senior Notes | Senior notes, matures 2021
Federal Home Loan Bank, Advances
Debt instrument face amount	$ 250,000,000
Redemption price percentage	100.00%
Long-term fixed rate advances
Federal Home Loan Bank, Advances
FHLB, non-current		$ 1,130,000,000	$ 1,025,000,000
Three Month LIBOR
Federal Home Loan Bank, Advances
Debt instrument, variable interest rate term (in months)		3 months
FHLB Advances, Interest Rate Reset Period (in months)		3 months
FHLB Advances, Prepayment Notification Period (in months)		3 months
FHLB Advances, Initial Lockout Period (in months)		12 months
Treasury rate | Senior Notes | Senior notes, matures 2021
Federal Home Loan Bank, Advances
Variable rate on spread	0.50%

Borrowings (Schedule of FHLB Ad

Borrowings (Schedule of FHLB Advances, Disclosures) (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Federal Home Loan Bank, Advances, Activity for Year
Maximum outstanding at any month end	$ 5,665	$ 3,557	$ 3,541
Average outstanding balance	4,590	2,833	1,811
Average remaining borrowing capacity	$ 1,195	$ 1,137	$ 1,611
Weighted average interest rate (percent)	1.30%	1.16%	1.00%

Borrowings (Schedule of FHLB, A

Borrowings (Schedule of FHLB, Advances, Maturity Summary) (Details) - USD ($) $ in Millions	Dec. 31, 2017	Dec. 31, 2016
Federal Home Loan Bank, Advances by Interest Rate Type, by Maturity
2,018	$ 4,385
2,019	50
2,020	0
2,021	0
Thereafter	1,230
Total	$ 5,665	$ 2,980

Borrowings (Senior Notes and Tr

Borrowings (Senior Notes and Trust Preferred Securities) (Details) - USD ($) $ in Millions	6 Months Ended
	Jun. 30, 2017	Dec. 31, 2017	Dec. 31, 2016
Debt Instrument
Junior Subordinated Notes		$ 247	$ 247
Long-term Debt		494	493
Senior notes, matures 2021
Debt Instrument
Senior Notes		$ 247	$ 246
Interest Rate (percent)		6.125%	6.125%
Plus 3.25%, matures 2032
Debt Instrument
Junior Subordinated Notes		$ 26	$ 26
Interest Rate (percent)		4.92%	4.25%
Plus 3.25%, matures 2033
Debt Instrument
Junior Subordinated Notes		$ 26	$ 26
Interest Rate (percent)		4.61%	4.13%
Plus 3.25%, matures 2033
Debt Instrument
Junior Subordinated Notes		$ 26	$ 26
Interest Rate (percent)		4.94%	4.25%
Plus 2.00%, matures 2035
Debt Instrument
Junior Subordinated Notes		$ 26	$ 26
Interest Rate (percent)		3.36%	2.88%
Plus 2.00%, matures 2035
Debt Instrument
Junior Subordinated Notes		$ 26	$ 26
Interest Rate (percent)		3.36%	2.88%
Plus 1.75%, matures 2035
Debt Instrument
Junior Subordinated Notes		$ 51	$ 51
Interest Rate (percent)		3.34%	2.71%
Plus 1.50%, matures 2035
Debt Instrument
Junior Subordinated Notes		$ 25	$ 25
Interest Rate (percent)		2.86%	2.38%
Plus 1.45%, matures 2037
Debt Instrument
Junior Subordinated Notes		$ 25	$ 25
Interest Rate (percent)		3.04%	2.41%
Plus 2.50%, matures 2037
Debt Instrument
Junior Subordinated Notes		$ 16	$ 16
Interest Rate (percent)		4.09%	3.46%
LIBOR | Plus 3.25%, matures 2032
Debt Instrument
Basis spread on variable rate	3.25%
LIBOR | Plus 3.25%, matures 2033
Debt Instrument
Basis spread on variable rate	3.25%
LIBOR | Plus 3.25%, matures 2033
Debt Instrument
Basis spread on variable rate	3.25%
LIBOR | Plus 2.00%, matures 2035
Debt Instrument
Basis spread on variable rate	2.00%
LIBOR | Plus 2.00%, matures 2035
Debt Instrument
Basis spread on variable rate	2.00%
LIBOR | Plus 1.75%, matures 2035
Debt Instrument
Basis spread on variable rate	1.75%
LIBOR | Plus 1.50%, matures 2035
Debt Instrument
Basis spread on variable rate	1.50%
LIBOR | Plus 1.45%, matures 2037
Debt Instrument
Basis spread on variable rate	1.45%
LIBOR | Plus 2.50%, matures 2037
Debt Instrument
Basis spread on variable rate	2.50%

Representation and Warranty R89

Representation and Warranty Reserve (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Representation and Warranty Reserve
Balance, beginning of period	$ 27	$ 40	$ 53
Gain on sale reduction for representation and warranty liability	4	5	7
Provision, charged to representation and warranty (benefit) provision	(13)	(19)	(19)
Total	(9)	(14)	(12)
(Charge-offs) recoveries, net	(3)	1	(1)
Balance, end of period	$ 15	$ 27	$ 40

Warrants (May Investors) (Detai

Warrants (May Investors) (Details) - USD ($)	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016	Jan. 30, 2009
Preferred Stock
Class of Warrant or Right [Line Items]
Preferred stock, shares outstanding (in shares)			266,657
May Investors
Class of Warrant or Right [Line Items]
Warrants exercised to purchase Common Stock (shares)	237,627
Warrants outstanding (shares)	0
Warrant liabilities	$ 0	$ 4,000,000
May Investors | Common Stock
Class of Warrant or Right [Line Items]
Common Stock issued (shares)	154,313
TARP
Class of Warrant or Right [Line Items]
Warrants to purchase Common Stock issued (shares)			645,138
Exercise price of warrants (in usd per share)			$ 62

Accumulated Other Comprehensi91

Accumulated Other Comprehensive Income (Loss) (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Accumulated Other Comprehensive Income (Loss) [Line Items]
Beginning Balance	$ 1,336	$ 1,529	$ 1,373
Other comprehensive income/(loss), net of tax	(9)	(9)	(6)
Ending balance	1,399	1,336	1,529
Investment Securities
Accumulated Other Comprehensive Income (Loss) [Line Items]
Beginning Balance	(8)	5	8
Unrealized gain (loss)	(19)	(10)	(7)
Less: Tax (benefit) provision	(7)	(3)	(2)
Net unrealized gain (loss)	(12)	(7)	(5)
Reclassifications out of AOCI	3	(9)	3
Less: Tax (benefit) provision	1	(3)	1
Net unrealized gain (loss) reclassified out of AOCI	2	(6)	2
Other comprehensive income/(loss), net of tax	(10)	(13)	(3)
Ending balance	(18)	(8)	5
Cash Flow Hedges
Accumulated Other Comprehensive Income (Loss) [Line Items]
Beginning Balance	1	(3)	0
Unrealized gain (loss)	5	(13)	(6)
Less: Tax (benefit) provision	1	(5)	(1)
Net unrealized gain (loss)	4	(8)	(5)
Reclassifications out of AOCI	(5)	19	2
Less: Tax (benefit) provision	(2)	7	0
Net unrealized gain (loss) reclassified out of AOCI	(3)	12	2
Other comprehensive income/(loss), net of tax	1	4	(3)
Ending balance	$ 2	$ 1	$ (3)

Earnings Per Share (Details)

Earnings Per Share (Details) - USD ($) $ / shares in Units, $ in Millions	3 Months Ended												12 Months Ended
	Dec. 31, 2017	Sep. 30, 2017	Jun. 30, 2017	Mar. 31, 2017	Dec. 31, 2016	Sep. 30, 2016	Jun. 30, 2016	Mar. 31, 2016	Dec. 31, 2015	Sep. 30, 2015	Jun. 30, 2015	Mar. 31, 2015	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Earnings Per Share [Abstract]
Net income	$ (45)	$ 40	$ 41	$ 27	$ 28	$ 57	$ 47	$ 39	$ 33	$ 47	$ 46	$ 32	$ 63	$ 171	$ 158
Deferred cumulative preferred stock dividends													0	(18)	(30)
Net income applicable to common stockholders													$ 63	$ 153	$ 128
Weighted Average Shares
Weighted average common shares outstanding (in shares)													57,093,868	56,569,307	56,426,977
Effect of dilutive securities
May Investor Warrants (in shares)													12,287	138,314	305,484
Stock-based Awards (in shares)													1,072,188	890,046	432,062
Weighted average diluted common shares (in shares)													58,178,343	57,597,667	57,164,523
Earnings per common share
Basic income (loss) per share (in usd per share)	$ (0.79)	$ 0.71	$ 0.72	$ 0.47	$ 0.50	$ 0.98	$ 0.67	$ 0.56	$ 0.45	$ 0.70	$ 0.69	$ 0.43	$ 1.11	$ 2.71	$ 2.27
Effect of dilutive securities
Effect of dilutive securities - May Investor Warrants (in usd per share)													0	(0.01)	(0.01)
Effect of dilutive securities - Stock-based awards (in usd per share)													(0.02)	(0.04)	(0.02)
Diluted earnings per common share (in usd per share)	$ (0.79)	$ 0.70	$ 0.71	$ 0.46	$ 0.49	$ 0.96	$ 0.66	$ 0.54	$ 0.44	$ 0.69	$ 0.68	$ 0.43	$ 1.09	$ 2.66	$ 2.24

Earnings Per Share (Narratives)

Earnings Per Share (Narratives) (Details) $ in Millions	Jul. 29, 2016USD ($)
Preferred Stock
Antidilutive Securities Excluded from Computation of Earnings Per Share
Preferred stock, redemption amount	$ 267

Stock-Based Compensation (Narra

Stock-Based Compensation (Narratives) (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015	Jul. 01, 2017
Restricted stock units
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based compensation expense	$ 7	$ 3	$ 2
Unrecognized stock based compensation expense	$ 12
Period to be recognized	2 years 5 months 30 days
2006 Plan
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based compensation expense	$ 11	11	3
2006 Plan | Non-qualified stock options
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Contractual term (years)	5 years
2006 Plan | Stock appreciation rights (SAR)
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Contractual term (years)	7 years
2006 Plan | Restricted stock units
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Options available for future grants (shares)	2,132,452
2017 ESPP | Employee stock
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of shares authorized				800,000
Number of shares issued	48,032
Other incentive plans
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based compensation expense	$ 33	$ 33	$ 30

Stock-Based Compensation (Stock

Stock-Based Compensation (Stock Options, Activity) (Details) - USD ($)	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Stock Options, Outstanding
Options outstanding, beginning of year (shares)	45,791	53,284	63,598
Options canceled, forfeited and expired (shares)	(5,073)	(7,493)	(10,314)
Options outstanding, end of year (shares)	40,718	45,791	53,284
Options vested and expected to vest, end of year (shares)	40,718	45,791	53,284
Options exercisable, end of year (shares)	20,286	23,576	27,197
Stock Options, Outstanding, Weighted Average Exercise Price
Options outstanding, beginning of year (in usd per share)	$ 80	$ 80	$ 94.33
Options canceled, forfeited and expired (in usd per share)	80	80	168.34
Options outstanding, end of year (in usd per share)	80	80	80
Options vested and expected to vest, end of year (in usd per share)	80	80	80
Options exercisable, end of year (in usd per share)	$ 80	$ 80	$ 80
Stock Options, Additional Disclosures
Weighted average contractual term	2 years 1 month 6 days
Total intrinsic value of options exercised	$ 0	$ 0	$ 0
Intrinsic value of options outstanding	$ 0	$ 0	$ 0

Stock-Based Compensation (Restr

Stock-Based Compensation (Restricted Stock Units) (Details) - Restricted stock units - $ / shares	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Shares
Non-vested balance at beginning of period (shares)	1,461,910	1,299,985	233,691
Granted (shares)	357,058	310,209	1,325,134
Vested (shares)	(385,454)	(134,767)	(152,220)
Canceled and forfeited (shares)	(143,064)	(13,517)	(106,620)
Non-vested balance at end of period (shares)	1,290,450	1,461,910	1,299,985
Weighted — Average Grant-Date Fair Value per Share
Non-vested balance at beginning of period (in usd per share)	$ 17.68	$ 16.36	$ 17.21
Granted (in usd per share)	28.06	22.97	16.11
Vested (in usd per share)	17.36	15.78	15.25
Canceled and forfeited (in usd per share)	18.89	17.24	18.46
Non-vested balance at end of period (in usd per share)	$ 20.52	$ 17.68	$ 16.36

Income Taxes (Components of Inc

Income Taxes (Components of Income Tax Provision) (Details) - USD ($) $ in Millions	3 Months Ended												12 Months Ended
	Dec. 31, 2017	Sep. 30, 2017	Jun. 30, 2017	Mar. 31, 2017	Dec. 31, 2016	Sep. 30, 2016	Jun. 30, 2016	Mar. 31, 2016	Dec. 31, 2015	Sep. 30, 2015	Jun. 30, 2015	Mar. 31, 2015	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Current
Federal													$ 2	$ 4	$ 2
Total current income tax expense													2	4	2
Deferred
Federal													66	84	82
Federal impact of tax reform													80	0	0
State													0	(1)	(2)
Total deferred income tax expense (benefit)													146	83	80
Total income tax expense/provision (benefit)	$ 96	$ 20	$ 19	$ 13	$ 14	$ 30	$ 22	$ 21	$ 12	$ 24	$ 28	$ 18	148	87	82
Federal
Deferred
Total income tax expense/provision (benefit)													$ 148	$ 87	$ 82

Income Taxes (Reconciliation to

Income Taxes (Reconciliation to Effective Income Tax) (Details) - USD ($) $ in Millions	3 Months Ended												12 Months Ended
	Dec. 31, 2017	Sep. 30, 2017	Jun. 30, 2017	Mar. 31, 2017	Dec. 31, 2016	Sep. 30, 2016	Jun. 30, 2016	Mar. 31, 2016	Dec. 31, 2015	Sep. 30, 2015	Jun. 30, 2015	Mar. 31, 2015	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Effective Income Tax Rate Reconciliation, Amount
Statutory federal income tax rate													35.00%	35.00%	35.00%
Total income tax expense/provision (benefit)	$ 96	$ 20	$ 19	$ 13	$ 14	$ 30	$ 22	$ 21	$ 12	$ 24	$ 28	$ 18	$ 148	$ 87	$ 82
Effective income tax rate (percent)													70.10%	33.70%	34.20%
Federal
Effective Income Tax Rate Reconciliation, Amount
Provision at statutory federal income tax rate (35%)													$ 74	$ 90	$ 84
Tax Reform													80	0	0
Bank Owned Life Insurance													(3)	(3)	(1)
Restricted stock compensation													(2)	0	0
State income tax (benefit), net of federal income tax effect (includes valuation allowance)													0	(1)	(2)
Warrant expense (income)													0	1	1
Non-deductible compensation													0	0	1
Other													(1)	0	(1)
Total income tax expense/provision (benefit)													$ 148	$ 87	$ 82

Income Taxes (Net Deferred Asse

Income Taxes (Net Deferred Assets) (Details) - USD ($) $ in Millions	Dec. 31, 2017	Dec. 31, 2016
Deferred tax liabilities
Net deferred tax asset	$ 136	$ 286
Federal
Deferred tax assets
Net operating loss carryforwards (Federal and State)	110	195
Allowance for loan losses	43	74
Litigation settlement	14	22
Alternative Minimum Tax credit carry forwards	0	18
Representation and warranty reserves	3	10
Accrued compensation	10	15
Contingent Consideration	6	0
Loan deferred fees and costs	2	3
Non-accrual interest revenue	1	2
Deferred interest	1	2
General business credits	3	1
Other	2	5
Total	195	347
Valuation allowance	(20)	(20)
Total (net)	175	327
Deferred tax liabilities
Premises and equipment	(14)	(12)
Mortgage loan servicing rights	(3)	(11)
Mark-to-market adjustments	(10)	(9)
Commercial lease financing	(9)	(5)
State and local taxes	(3)	(4)
Total	(39)	(41)
Net deferred tax asset	$ 136	$ 286

Income Taxes (Narratives) (Deta

Income Taxes (Narratives) (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Operating Loss Carryforwards
Federal impact of tax reform	$ 80	$ 0	$ 0
Temporary differences related to provision for loan losses not expected to reverse therefore not included in deferred tax assets	4
Operating loss carryforwards, amount subject to annual use limitation	120
Total state net operating loss carryforwards	579
Income tax penalties and interest expense (less than)	1	1	$ 1
Federal
Operating Loss Carryforwards
Alternative Minimum Tax credit carry forwards	0	18
Operating loss carryforwards	381	480
Valuation allowance	20	$ 20
Federal | Adjustment
Operating Loss Carryforwards
Alternative Minimum Tax credit carry forwards	$ (20)
Federal | Minimum
Operating Loss Carryforwards
Operating loss carryforward expiration	Dec. 31, 2028
Federal | Maximum
Operating Loss Carryforwards
Operating loss carryforward expiration	Dec. 31, 2037
State and Local Jurisdiction
Operating Loss Carryforwards
Operating loss carryforwards, amount subject to annual use limitation	$ 14
Total state deferred tax asset	33
Valuation allowance	$ 20

Regulatory Capital (Details)

Regulatory Capital (Details) - USD ($) $ in Millions	Dec. 31, 2017	Dec. 31, 2016
Tangible Capital
Tangible capital (to tangible assets), actual amount	$ 1,442	$ 1,256
Tangible capital (to tangible assets), actual ratio (percent)	8.51%	8.88%
Tier 1 Capital
Tier 1 capital, actual amount	$ 1,442	$ 1,256
Tier 1 capital (to adjusted tangible assets), actual ratio (percent)	8.51%	8.88%
Tier 1 capital, for capital adequacy purposes amount	$ 678	$ 566
Tier 1 capital (to adjusted tangible assets), for capital adequacy purposes ratio (percent)	4.00%	4.00%
Tier 1 capital, capitalized under prompt corrective action provision amount	$ 848	$ 707
Tier 1 capital (to adjusted tangible assets), capitalized under prompt corrective action provision ratio (percent)	5.00%	5.00%
Common Equity Tier 1 Capital
Common equity Tier 1 capital (to RWA), actual amount	$ 1,216	$ 1,084
Common equity Tier 1 capital (to RWA), actual ratio (percent)	11.50%	13.06%
Common equity Tier 1 capital (to RWA), For Capital Adequacy Purposes, Amount	$ 476	$ 374
Common equity Tier 1 capital (to RWA), For Capital Adequacy Purposes, Ratio (percent)	4.50%	4.50%
Common equity Tier 1 capital (to RWA), Well Capitalized Under Prompt Corrective Action Provisions, Amount	$ 688	$ 540
Common equity Tier 1 capital (to RWA), Well Capitalized Under Prompt Corrective Action Provisions, Ratio (percent)	6.50%	6.50%
Tier One Risk Based Capital
Tier 1 capital, actual amount	$ 1,442	$ 1,256
Tier 1 capital (to risk weighted assets), actual ratio (percent)	13.63%	15.12%
Tier 1 capital, for capital adequacy purposes amount	$ 635	$ 498
Tier 1 capital (to risk weighted assets), for capital adequacy purposes ratio (percent)	6.00%	6.00%
Tier 1 capital, capitalized under prompt corrective action provision amount	$ 846	$ 664
Tier 1 capital (to risk weighted assets), capitalized under prompt corrective action provision ratio (percent)	8.00%	8.00%
Capital
Total capital, actual amount	$ 1,576	$ 1,363
Total capital (to risk weighted assets), actual ratio (percent)	14.90%	16.41%
Total capital, for capital adequacy purposes amount	$ 846	$ 664
Total capital (to risk weighted assets), for capital adequacy purposes ratio (percent)	8.00%	8.00%
Total capital, capitalized under prompt corrective action provisions amount	$ 1,058	$ 830
Total capital (to risk weighted assets), capitalized under prompt corrective action provisions ratio (percent)	10.00%	10.00%
Bank
Tangible Capital
Tangible capital (to tangible assets), actual amount	$ 1,531	$ 1,491
Tangible capital (to tangible assets), actual ratio (percent)	9.04%	10.52%
Tier 1 Capital
Tier 1 capital, actual amount	$ 1,531	$ 1,491
Tier 1 capital (to adjusted tangible assets), actual ratio (percent)	9.04%	10.52%
Tier 1 capital, for capital adequacy purposes amount	$ 677	$ 567
Tier 1 capital (to adjusted tangible assets), for capital adequacy purposes ratio (percent)	4.00%	4.00%
Tier 1 capital, capitalized under prompt corrective action provision amount	$ 847	$ 709
Tier 1 capital (to adjusted tangible assets), capitalized under prompt corrective action provision ratio (percent)	5.00%	5.00%
Common Equity Tier 1 Capital
Common equity Tier 1 capital (to RWA), actual amount	$ 1,531	$ 1,491
Common equity Tier 1 capital (to RWA), actual ratio (percent)	14.46%	17.90%
Common equity Tier 1 capital (to RWA), For Capital Adequacy Purposes, Amount	$ 476	$ 375
Common equity Tier 1 capital (to RWA), For Capital Adequacy Purposes, Ratio (percent)	4.50%	4.50%
Common equity Tier 1 capital (to RWA), Well Capitalized Under Prompt Corrective Action Provisions, Amount	$ 688	$ 542
Common equity Tier 1 capital (to RWA), Well Capitalized Under Prompt Corrective Action Provisions, Ratio (percent)	6.50%	6.50%
Tier One Risk Based Capital
Tier 1 capital, actual amount	$ 1,531	$ 1,491
Tier 1 capital (to risk weighted assets), actual ratio (percent)	14.46%	17.90%
Tier 1 capital, for capital adequacy purposes amount	$ 635	$ 500
Tier 1 capital (to risk weighted assets), for capital adequacy purposes ratio (percent)	6.00%	6.00%
Tier 1 capital, capitalized under prompt corrective action provision amount	$ 847	$ 667
Tier 1 capital (to risk weighted assets), capitalized under prompt corrective action provision ratio (percent)	8.00%	8.00%
Capital
Total capital, actual amount	$ 1,664	$ 1,598
Total capital (to risk weighted assets), actual ratio (percent)	15.72%	19.18%
Total capital, for capital adequacy purposes amount	$ 847	$ 667
Total capital (to risk weighted assets), for capital adequacy purposes ratio (percent)	8.00%	8.00%
Total capital, capitalized under prompt corrective action provisions amount	$ 1,059	$ 833
Total capital (to risk weighted assets), capitalized under prompt corrective action provisions ratio (percent)	10.00%	10.00%

Legal Proceedings, Contingen102

Legal Proceedings, Contingencies and Commitments (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016
Loss Contingency, Settlement
Tier 1 capital (to adjusted tangible assets), capitalized under prompt corrective action provision ratio (percent)	5.00%	5.00%
Business acquisition threshold (percentage)	33.30%
Accrued reserve for contingent liabilities	$ 1	$ 3
Letter of credit, reserve amount	$ 3	$ 3
Bank
Loss Contingency, Settlement
Tier 1 capital (to adjusted tangible assets), capitalized under prompt corrective action provision ratio (percent)	5.00%	5.00%
DOJ Agreement
Loss Contingency, Settlement
Litigation settlement, initial payment	$ 15
Litigation settlement payment amount	$ 118
Discount rate (percent)	9.70%
Litigation liability	$ 60	$ 60
DOJ Agreement | Bank
Loss Contingency, Settlement
Tier 1 capital (to adjusted tangible assets), capitalized under prompt corrective action provision ratio (percent)	11.00%
DOJ Agreement | Subsequent Payments
Loss Contingency, Settlement
Litigation expense	$ 25

Legal Proceedings, Contingen103

Legal Proceedings, Contingencies and Commitments (Commitments) (Details) - USD ($) $ in Millions	Dec. 31, 2017	Dec. 31, 2016
Mortgage loan interest-rate lock commitments
Commitments
Commitments to extend credit	$ 3,667	$ 4,115
Warehouse loan commitments
Commitments
Commitments to extend credit	1,618	1,670
Commercial and industrial commitments
Commitments
Commitments to extend credit	695	424
Other commercial commitments
Commitments
Commitments to extend credit	1,021	651
HELOC commitments
Commitments
Commitments to extend credit	283	179
Other consumer commitments
Commitments
Commitments to extend credit	15	57
Standby and commercial letters of credit
Commitments
Commitments to extend credit	$ 50	$ 30

Fair Value Measurements (Assets

Fair Value Measurements (Assets and Liabilities Measured at Fair Value on a Recurring Basis) (Details) - USD ($) $ in Millions	Dec. 31, 2017	Dec. 31, 2016
Assets, Fair Value Disclosure
Investment securities available-for-sale	$ 1,853	$ 1,480
Loans held-for-sale	4,300	3,145
Loans held-for-investment	12	72
Mortgage servicing rights	291	335
Total assets at fair value	4,312	3,217
Agency - Commercial
Assets, Fair Value Disclosure
Investment securities available-for-sale	987	548
Agency - Residential
Assets, Fair Value Disclosure
Investment securities available-for-sale	794	898
Municipal obligations
Assets, Fair Value Disclosure
Investment securities available-for-sale	34	34
Corporate debt obligations
Assets, Fair Value Disclosure
Investment securities available-for-sale	38
Total fair value
Assets, Fair Value Disclosure
Investment securities available-for-sale	1,853	1,480
Loans held-for-sale	4,322	3,178
Loans held-for-investment	7,667	5,998
Mortgage servicing rights	291	335
Liabilities, Fair Value Disclosure
Warrant liabilities		(4)
Contingent consideration	(25)
Total fair value | Level 1
Assets, Fair Value Disclosure
Investment securities available-for-sale	0	0
Loans held-for-sale	0	0
Loans held-for-investment	0	0
Mortgage servicing rights	0	0
Liabilities, Fair Value Disclosure
Warrant liabilities		0
Contingent consideration	0
Total fair value | Level 2
Assets, Fair Value Disclosure
Investment securities available-for-sale	1,853	1,480
Loans held-for-sale	4,322	3,178
Loans held-for-investment	8	7
Mortgage servicing rights	0	0
Liabilities, Fair Value Disclosure
Warrant liabilities		(4)
Contingent consideration	0
Total fair value | Level 3
Assets, Fair Value Disclosure
Investment securities available-for-sale	0	0
Loans held-for-sale	0	0
Loans held-for-investment	7,659	5,991
Mortgage servicing rights	291	335
Liabilities, Fair Value Disclosure
Warrant liabilities		0
Contingent consideration	(25)
Recurring | Level 1
Assets, Fair Value Disclosure
Mortgage servicing rights	0	0
Total assets at fair value	0	2
Liabilities, Fair Value Disclosure
Warrant liabilities		0
DOJ litigation settlement	0	0
Long-term debt	0	0
Recurring | Level 1 | Rate lock commitments
Assets, Fair Value Disclosure
Derivative assets	0	0
Liabilities, Fair Value Disclosure
Derivative liabilities		0
Recurring | Level 1 | Interest rate swap on FHLB advances
Assets, Fair Value Disclosure
Derivative assets		0
Liabilities, Fair Value Disclosure
Derivative liabilities	0
Recurring | Level 1 | Mortgage-backed securities forwards
Assets, Fair Value Disclosure
Derivative assets	0	0
Liabilities, Fair Value Disclosure
Derivative liabilities	0	0
Recurring | Level 1 | Interest rate swaps
Liabilities, Fair Value Disclosure
Derivative liabilities	0	0
Recurring | Level 1 | Futures
Assets, Fair Value Disclosure
Derivative assets		2
Recurring | Level 1 | Interest rate swaps and swaptions
Assets, Fair Value Disclosure
Derivative assets	0	0
Recurring | Level 1 | Contingent consideration
Liabilities, Fair Value Disclosure
Contingent consideration	0
Recurring | Level 1 | Residential first mortgage loans
Assets, Fair Value Disclosure
Loans held-for-sale	0	0
Loans held-for-investment	0	0
Recurring | Level 1 | Home Equity
Assets, Fair Value Disclosure
Loans held-for-investment	0	0
Recurring | Level 1 | Agency - Commercial
Assets, Fair Value Disclosure
Investment securities available-for-sale	0	0
Recurring | Level 1 | Agency - Residential
Assets, Fair Value Disclosure
Investment securities available-for-sale	0	0
Recurring | Level 1 | Municipal obligations
Assets, Fair Value Disclosure
Investment securities available-for-sale	0	0
Recurring | Level 1 | Corporate debt obligations
Assets, Fair Value Disclosure
Investment securities available-for-sale	0
Recurring | Level 2
Assets, Fair Value Disclosure
Mortgage servicing rights	0	0
Total assets at fair value	6,176	4,729
Liabilities, Fair Value Disclosure
Warrant liabilities		(4)
DOJ litigation settlement	0	0
Long-term debt	(11)	(52)
Recurring | Level 2 | Rate lock commitments
Assets, Fair Value Disclosure
Derivative assets	0	0
Liabilities, Fair Value Disclosure
Derivative liabilities		0
Recurring | Level 2 | Interest rate swap on FHLB advances
Assets, Fair Value Disclosure
Derivative assets		19
Liabilities, Fair Value Disclosure
Derivative liabilities	(1)
Recurring | Level 2 | Mortgage-backed securities forwards
Assets, Fair Value Disclosure
Derivative assets	4	43
Liabilities, Fair Value Disclosure
Derivative liabilities	(6)	(11)
Recurring | Level 2 | Interest rate swaps
Liabilities, Fair Value Disclosure
Derivative liabilities	(4)	(37)
Recurring | Level 2 | Futures
Assets, Fair Value Disclosure
Derivative assets		0
Recurring | Level 2 | Interest rate swaps and swaptions
Assets, Fair Value Disclosure
Derivative assets	11	35
Recurring | Level 2 | Contingent consideration
Liabilities, Fair Value Disclosure
Contingent consideration	0
Recurring | Level 2 | Residential first mortgage loans
Assets, Fair Value Disclosure
Loans held-for-sale	4,300	3,145
Loans held-for-investment	8	7
Recurring | Level 2 | Home Equity
Assets, Fair Value Disclosure
Loans held-for-investment	0	0
Recurring | Level 2 | Agency - Commercial
Assets, Fair Value Disclosure
Investment securities available-for-sale	987	548
Recurring | Level 2 | Agency - Residential
Assets, Fair Value Disclosure
Investment securities available-for-sale	794	898
Recurring | Level 2 | Municipal obligations
Assets, Fair Value Disclosure
Investment securities available-for-sale	34	34
Recurring | Level 2 | Corporate debt obligations
Assets, Fair Value Disclosure
Investment securities available-for-sale	38
Recurring | Level 3
Assets, Fair Value Disclosure
Mortgage servicing rights	291	335
Total assets at fair value	319	424
Liabilities, Fair Value Disclosure
Warrant liabilities		0
DOJ litigation settlement	(60)	(60)
Long-term debt	(85)	(66)
Recurring | Level 3 | Rate lock commitments
Assets, Fair Value Disclosure
Derivative assets	24	24
Liabilities, Fair Value Disclosure
Derivative liabilities		(6)
Recurring | Level 3 | Interest rate swap on FHLB advances
Assets, Fair Value Disclosure
Derivative assets		0
Liabilities, Fair Value Disclosure
Derivative liabilities	0
Recurring | Level 3 | Mortgage-backed securities forwards
Assets, Fair Value Disclosure
Derivative assets	0	0
Liabilities, Fair Value Disclosure
Derivative liabilities	0	0
Recurring | Level 3 | Interest rate swaps
Liabilities, Fair Value Disclosure
Derivative liabilities	0	0
Recurring | Level 3 | Futures
Assets, Fair Value Disclosure
Derivative assets		0
Recurring | Level 3 | Interest rate swaps and swaptions
Assets, Fair Value Disclosure
Derivative assets	0	0
Recurring | Level 3 | Contingent consideration
Liabilities, Fair Value Disclosure
Contingent consideration	(25)
Recurring | Level 3 | Residential first mortgage loans
Assets, Fair Value Disclosure
Loans held-for-sale	0	0
Loans held-for-investment	0	0
Recurring | Level 3 | Home Equity
Assets, Fair Value Disclosure
Loans held-for-investment	4	65
Recurring | Level 3 | Agency - Commercial
Assets, Fair Value Disclosure
Investment securities available-for-sale	0	0
Recurring | Level 3 | Agency - Residential
Assets, Fair Value Disclosure
Investment securities available-for-sale	0	0
Recurring | Level 3 | Municipal obligations
Assets, Fair Value Disclosure
Investment securities available-for-sale	0	0
Recurring | Level 3 | Corporate debt obligations
Assets, Fair Value Disclosure
Investment securities available-for-sale	0
Recurring | Total fair value
Assets, Fair Value Disclosure
Mortgage servicing rights	291	335
Total assets at fair value	6,495	5,155
Liabilities, Fair Value Disclosure
Warrant liabilities		(4)
DOJ litigation settlement	(60)	(60)
Long-term debt	(96)	(118)
Recurring | Total fair value | Rate lock commitments
Assets, Fair Value Disclosure
Derivative assets	24	24
Liabilities, Fair Value Disclosure
Derivative liabilities		(6)
Recurring | Total fair value | Interest rate swap on FHLB advances
Assets, Fair Value Disclosure
Derivative assets		19
Liabilities, Fair Value Disclosure
Derivative liabilities	(1)
Recurring | Total fair value | Mortgage-backed securities forwards
Assets, Fair Value Disclosure
Derivative assets	4	43
Liabilities, Fair Value Disclosure
Derivative liabilities	(6)	(11)
Recurring | Total fair value | Interest rate swaps
Liabilities, Fair Value Disclosure
Derivative liabilities	(4)	(37)
Recurring | Total fair value | Futures
Assets, Fair Value Disclosure
Derivative assets		2
Recurring | Total fair value | Interest rate swaps and swaptions
Assets, Fair Value Disclosure
Derivative assets	11	35
Recurring | Total fair value | Contingent consideration
Liabilities, Fair Value Disclosure
Contingent consideration	(25)
Recurring | Total fair value | Residential first mortgage loans
Assets, Fair Value Disclosure
Loans held-for-sale	4,300	3,145
Loans held-for-investment	8	7
Recurring | Total fair value | Home Equity
Assets, Fair Value Disclosure
Loans held-for-investment	4	65
Recurring | Total fair value | Agency - Commercial
Assets, Fair Value Disclosure
Investment securities available-for-sale	987	548
Recurring | Total fair value | Agency - Residential
Assets, Fair Value Disclosure
Investment securities available-for-sale	794	898
Recurring | Total fair value | Municipal obligations
Assets, Fair Value Disclosure
Investment securities available-for-sale	34	$ 34
Recurring | Total fair value | Corporate debt obligations
Assets, Fair Value Disclosure
Investment securities available-for-sale	$ 38

Fair Value Measurements (Narrat

Fair Value Measurements (Narratives) (Details) - USD ($)	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Level 3 | Weighted Average | Residential mortgage servicing rights capitalized
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis
Weighted-average life (in years)	6 years	6 years 7 months 6 days
Recurring
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis
Transfers from Level 1 to Level 2	$ 0	$ 0	$ 0

Fair Value Measurements (Fair V

Fair Value Measurements (Fair Value Measurements Using Significant Unobservable Inputs) (Details) - Recurring - Level 3 - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Assets, Unobservable Input Reconciliation
Balance at Beginning of Year	$ 418	$ 428	$ 576
Total unrealized gains/(losses) recorded in earnings	35	(75)	12
Total realized gains/(losses) recorded in earnings	0	0	0
Total unrealized gains/(losses) recorded in OCI	0	0	0
Purchases / Originations	555	553	537
Sales	(362)	(84)	(176)
Settlement	(9)	(46)	(179)
Transfers In (Out)	(318)	(358)	(342)
Balance at End of Year	319	418	428
Liabilities, Unobservable Input Reconciliation
Balance at Beginning of Year	(60)	(84)	(166)
Total unrealized gains/(losses) recorded in earnings	(1)		(2)
Total realized gains/(losses) recorded in earnings	0		(3)
Total unrealized gains/(losses) recorded in OCI	0		0
Purchases / Originations	(25)		0
Sales	0		52
Settlement	1		35
Transfers In (Out)	0		0
Balance at End of Year	(85)	(60)	(84)
Long-term debt
Liabilities, Unobservable Input Reconciliation
Balance at Beginning of Year		0	(84)
Total unrealized gains/(losses) recorded in earnings			0
Total realized gains/(losses) recorded in earnings			(3)
Total unrealized gains/(losses) recorded in OCI			0
Purchases / Originations			0
Sales			52
Settlement			35
Transfers In (Out)			0
Balance at End of Year			0
DOJ litigation settlement
Liabilities, Unobservable Input Reconciliation
Balance at Beginning of Year	(60)	(84)	(82)
Total unrealized gains/(losses) recorded in earnings	0	24	(2)
Total realized gains/(losses) recorded in earnings	0	0	0
Total unrealized gains/(losses) recorded in OCI	0	0	0
Purchases / Originations	0	0	0
Sales	0	0	0
Settlement	0	0	0
Transfers In (Out)	0	0	0
Balance at End of Year	(60)	(60)	(84)
Contingent consideration
Liabilities, Unobservable Input Reconciliation
Balance at Beginning of Year	0
Total unrealized gains/(losses) recorded in earnings	(1)
Total realized gains/(losses) recorded in earnings	0
Total unrealized gains/(losses) recorded in OCI	0
Purchases / Originations	(25)
Sales	0
Settlement	1
Transfers In (Out)	0
Balance at End of Year	(25)	0
Home Equity
Assets, Unobservable Input Reconciliation
Balance at Beginning of Year	65	106	185
Total unrealized gains/(losses) recorded in earnings	2	5	(2)
Total realized gains/(losses) recorded in earnings	0	0	0
Total unrealized gains/(losses) recorded in OCI	0	0	0
Purchases / Originations	0	0	0
Sales	0	0	0
Settlement	(8)	(46)	(77)
Transfers In (Out)	(55)	0	0
Balance at End of Year	4	65	106
Mortgage servicing rights
Assets, Unobservable Input Reconciliation
Balance at Beginning of Year	335	296	258
Total unrealized gains/(losses) recorded in earnings	(22)	(105)	(46)
Total realized gains/(losses) recorded in earnings	0	0	0
Total unrealized gains/(losses) recorded in OCI	0	0	0
Purchases / Originations	288	228	260
Sales	(310)	(84)	(176)
Settlement	0	0	0
Transfers In (Out)	0	0	0
Balance at End of Year	291	335	296
Rate lock commitments (net)
Assets, Unobservable Input Reconciliation
Balance at Beginning of Year	18	26	31
Total unrealized gains/(losses) recorded in earnings	54	25	60
Total realized gains/(losses) recorded in earnings	0	0	0
Total unrealized gains/(losses) recorded in OCI	0	0	0
Purchases / Originations	267	325	277
Sales	0	0	0
Settlement	0	0	0
Transfers In (Out)	(315)	(358)	(342)
Balance at End of Year	24	18	26
Municipal obligation
Assets, Unobservable Input Reconciliation
Balance at Beginning of Year		0	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 / Originations			0
Sales			0
Settlement			(2)
Transfers In (Out)			0
Balance at End of Year			0
Other investments
Assets, Unobservable Input Reconciliation
Balance at Beginning of Year		0	100
Settlement			(100)
Balance at End of Year			$ 0
Loans held-for-sale | Home Equity
Assets, Unobservable Input Reconciliation
Balance at Beginning of Year	0
Total unrealized gains/(losses) recorded in earnings	1
Total realized gains/(losses) recorded in earnings	0
Total unrealized gains/(losses) recorded in OCI	0
Purchases / Originations	0
Sales	(52)
Settlement	(1)
Transfers In (Out)	52
Balance at End of Year	$ 0	$ 0

Fair Value Measurements (Level

Fair Value Measurements (Level 3 Quantitative Information) (Details) - Recurring - Level 3 - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Fair Value Inputs, Assets and Liabilities, Quantitative Information
Fair value assets with unobservable inputs	$ 319	$ 418	$ 428	$ 576
Fair value liabilities with unobservable inputs	(85)	(60)	(84)	(166)
DOJ litigation settlement
Fair Value Inputs, Assets and Liabilities, Quantitative Information
Fair value liabilities with unobservable inputs	(60)	(60)	(84)	(82)
Contingent consideration
Fair Value Inputs, Assets and Liabilities, Quantitative Information
Fair value liabilities with unobservable inputs	(25)	0
Home Equity
Fair Value Inputs, Assets and Liabilities, Quantitative Information
Fair value assets with unobservable inputs	4	65	106	185
Mortgage servicing rights
Fair Value Inputs, Assets and Liabilities, Quantitative Information
Fair value assets with unobservable inputs	291	335	296	258
Rate lock commitments
Fair Value Inputs, Assets and Liabilities, Quantitative Information
Fair value assets with unobservable inputs	24	18	$ 26	$ 31
Discounted cash flows | DOJ litigation settlement
Fair Value Inputs, Assets and Liabilities, Quantitative Information
Fair value liabilities with unobservable inputs	$ (60)	$ (60)
Discounted cash flows | DOJ litigation settlement | Minimum
Fair Value Inputs
Discount rate (percent)	7.80%	6.60%
Discounted cash flows | DOJ litigation settlement | Maximum
Fair Value Inputs
Discount rate (percent)	11.70%	9.80%
Discounted cash flows | DOJ litigation settlement | Weighted Average
Fair Value Inputs
Discount rate (percent)	9.70%	8.20%
Discounted cash flows | Contingent consideration
Fair Value Inputs, Assets and Liabilities, Quantitative Information
Fair value liabilities with unobservable inputs	$ (25)
Discounted cash flows | Contingent consideration | Minimum
Fair Value Inputs
Fair Value Input, Beta	0.60%
Fair Value Inputs, Equity volatility	26.60%
Discounted cash flows | Contingent consideration | Maximum
Fair Value Inputs
Fair Value Input, Beta	1.60%
Fair Value Inputs, Equity volatility	58.90%
Discounted cash flows | Contingent consideration | Weighted Average
Fair Value Inputs
Fair Value Input, Beta	1.10%
Fair Value Inputs, Equity volatility	40.00%
Discounted cash flows | Home Equity
Fair Value Inputs, Assets and Liabilities, Quantitative Information
Fair value assets with unobservable inputs	$ 4	$ 65
Discounted cash flows | Home Equity | Minimum
Fair Value Inputs
Discount rate (percent)	7.20%	6.00%
Constant prepayment rate (percent)	5.10%	16.30%
CDR rate (percent)	3.00%	2.70%
Discounted cash flows | Home Equity | Maximum
Fair Value Inputs
Discount rate (percent)	10.80%	12.20%
Constant prepayment rate (percent)	7.70%	24.40%
CDR rate (percent)	4.50%	4.10%
Discounted cash flows | Home Equity | Weighted Average
Fair Value Inputs
Discount rate (percent)	9.00%	9.30%
Constant prepayment rate (percent)	6.40%	20.30%
CDR rate (percent)	3.60%	3.70%
Discounted cash flows | Mortgage servicing rights
Fair Value Inputs, Assets and Liabilities, Quantitative Information
Fair value assets with unobservable inputs	$ 291	$ 335
Discounted cash flows | Mortgage servicing rights | Minimum
Fair Value Inputs
Discount rate (percent)	5.00%	6.20%
Constant prepayment rate (percent)	8.00%	13.90%
Weighted average cost to service per loan	$ 58	$ 55
Discounted cash flows | Mortgage servicing rights | Maximum
Fair Value Inputs
Discount rate (percent)	7.50%	9.30%
Constant prepayment rate (percent)	11.80%	19.20%
Weighted average cost to service per loan	$ 87	$ 82
Discounted cash flows | Mortgage servicing rights | Weighted Average
Fair Value Inputs
Discount rate (percent)	6.30%	7.80%
Constant prepayment rate (percent)	9.90%	16.70%
Weighted average cost to service per loan	$ 73	$ 68
Discounted cash flows | Rate lock commitments | Minimum
Fair Value Inputs
Fair Value Inputs Asset Growth Rate	5.60%	4.20%
Discounted cash flows | Rate lock commitments | Maximum
Fair Value Inputs
Fair Value Inputs Asset Growth Rate	17.40%	11.60%
Discounted cash flows | Rate lock commitments | Weighted Average
Fair Value Inputs
Fair Value Inputs Asset Growth Rate	6.30%	7.90%
Consensus pricing | Rate lock commitments
Fair Value Inputs, Assets and Liabilities, Quantitative Information
Fair value assets with unobservable inputs	$ 24	$ 18
Consensus pricing | Rate lock commitments | Minimum
Fair Value Inputs
Original pull-through rate	64.70%	66.90%
Consensus pricing | Rate lock commitments | Maximum
Fair Value Inputs
Original pull-through rate	97.10%	100.00%
Consensus pricing | Rate lock commitments | Weighted Average
Fair Value Inputs
Original pull-through rate	82.00%	83.60%

Fair Value Measurements (Ass108

Fair Value Measurements (Assets Measured at Fair Value on a Non-recurring Basis) (Details) - USD ($) $ in Millions	3 Months Ended												12 Months Ended
	Dec. 31, 2017	Sep. 30, 2017	Jun. 30, 2017	Mar. 31, 2017	Dec. 31, 2016	Sep. 30, 2016	Jun. 30, 2016	Mar. 31, 2016	Dec. 31, 2015	Sep. 30, 2015	Jun. 30, 2015	Mar. 31, 2015	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis
Loans held-for-sale	$ 4,300				$ 3,145								$ 4,300	$ 3,145
Total assets at fair value	4,312				3,217								4,312	3,217
Net gain (loss) on sales of repossessed assets	79	$ 75	$ 66	$ 48	57	$ 94	$ 90	$ 75	$ 46	$ 68	$ 83	$ 91	268	316	$ 288
Nonrecurring
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis
Repossessed assets	8				14								8	14
Total assets at fair value	35				48								35	48
Fair value gains (losses) on repossessed assets													0	(2)
Net gain (loss) on sales of repossessed assets													(11)	(32)
Nonrecurring | Level 2
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis
Repossessed assets	0				0								0	0
Total assets at fair value	6				9								6	9
Nonrecurring | Level 3
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis
Repossessed assets	8				14								8	14
Total assets at fair value	29				39								29	39
Nonrecurring | Residential first mortgage loans
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis
Loans held-for-sale	6				9								6	9
Impaired loans held-for-investment	21				25								21	25
Nonrecurring | Residential first mortgage loans | Interest Income
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis
Fair value gains (losses) on loans													(1)	(2)
Nonrecurring | Residential first mortgage loans | Provision for loan losses
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis
Fair value gains (losses) on loans													(10)	(28)
Nonrecurring | Residential first mortgage loans | Level 2
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis
Loans held-for-sale	6				9								6	9
Impaired loans held-for-investment	0				0								0	0
Nonrecurring | Residential first mortgage loans | Level 3
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis
Loans held-for-sale	0				0								0	0
Impaired loans held-for-investment	$ 21				$ 25								$ 21	$ 25

Fair Value Measurements (Ass109

Fair Value Measurements (Assets Measured on a Nonrecurring Basis, Level 3 Quantitative Information) (Details) - Nonrecurring - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016
Fair Value Inputs, Assets, Quantitative Information
Repossessed assets	$ 8	$ 14
Residential first mortgage loans
Fair Value Inputs, Assets, Quantitative Information
Impaired loans held-for-investment	21	25
Level 3
Fair Value Inputs, Assets, Quantitative Information
Repossessed assets	8	14
Level 3 | Residential first mortgage loans
Fair Value Inputs, Assets, Quantitative Information
Impaired loans held-for-investment	21	25
Level 3 | Fair value of underlying collateral | Residential first mortgage loans
Fair Value Inputs, Assets, Quantitative Information
Impaired loans held-for-investment	$ 21	$ 25
Level 3 | Fair value of underlying collateral | Residential first mortgage loans | Low Range
Fair Value Inputs, Assets, Quantitative Information
Loss severity discount (percent)	25.00%	22.00%
Level 3 | Fair value of underlying collateral | Residential first mortgage loans | High Range
Fair Value Inputs, Assets, Quantitative Information
Loss severity discount (percent)	30.00%	40.00%
Level 3 | Fair value of underlying collateral | Residential first mortgage loans | Weighted Average
Fair Value Inputs, Assets, Quantitative Information
Loss severity discount (percent)	27.90%	29.50%
Level 3 | Fair value of underlying collateral | Foreclosed Assets
Fair Value Inputs, Assets, Quantitative Information
Repossessed assets	$ 8	$ 14
Level 3 | Fair value of underlying collateral | Foreclosed Assets | Low Range
Fair Value Inputs, Assets, Quantitative Information
Loss severity discount (percent)	0.00%	22.00%
Level 3 | Fair value of underlying collateral | Foreclosed Assets | High Range
Fair Value Inputs, Assets, Quantitative Information
Loss severity discount (percent)	100.00%	100.00%
Level 3 | Fair value of underlying collateral | Foreclosed Assets | Weighted Average
Fair Value Inputs, Assets, Quantitative Information
Loss severity discount (percent)	70.90%	69.50%

Fair Value Measurements (Fai110

Fair Value Measurements (Fair Value of Financial Instruments) (Details) - USD ($) $ in Millions	Dec. 31, 2017	Dec. 31, 2016
Assets
Investment securities available-for-sale	$ 1,853	$ 1,480
Investment securities held-to-maturity	924	1,084
Loans held-for-sale	4,300	3,145
Loans held-for-investment	12	72
Mortgage servicing rights	291	335
Carrying Value
Assets
Cash and cash equivalents	204	158
Investment securities available-for-sale	1,853	1,480
Investment securities held-to-maturity	939	1,093
Loans held-for-sale	4,321	3,177
Loans held-for-investment	7,713	6,065
Loans with government guarantees	271	365
Mortgage servicing rights	291	335
Federal Home Loan Bank stock	303	180
Bank owned life insurance	330	271
Repossessed assets	8	14
Other assets, foreclosure claims	84	135
Derivative financial instruments, assets	39	123
Liabilities
Federal Home Loan Bank advances	(5,665)	(2,980)
Long-term debt	(494)	(493)
Warrant liabilities		(4)
DOJ litigation settlement	(60)	(60)
Contingent consideration	(25)
Derivative financial instruments, liabilities	(11)	(54)
Carrying Value | Demand deposits and savings accounts
Liabilities
Deposits	(4,965)	(5,268)
Carrying Value | Certificates of deposit
Liabilities
Deposits	(1,493)	(1,056)
Carrying Value | Wholesale deposits
Liabilities
Deposits	(45)
Carrying Value | Government deposits
Liabilities
Deposits	(1,073)	(1,030)
Carrying Value | Company controlled deposits
Liabilities
Deposits	(1,358)	(1,446)
Total fair value
Assets
Cash and cash equivalents	204	158
Investment securities available-for-sale	1,853	1,480
Investment securities held-to-maturity	924	1,084
Loans held-for-sale	4,322	3,178
Loans held-for-investment	7,667	5,998
Loans with government guarantees	261	354
Mortgage servicing rights	291	335
Federal Home Loan Bank stock	303	180
Bank owned life insurance	330	271
Repossessed assets	8	14
Other assets, foreclosure claims	84	135
Derivative financial instruments, assets	39	123
Liabilities
Federal Home Loan Bank advances	(5,662)	(2,964)
Long-term debt	(417)	(277)
Warrant liabilities		(4)
DOJ litigation settlement	(60)	(60)
Contingent consideration	(25)
Derivative financial instruments, liabilities	(11)	(54)
Total fair value | Demand deposits and savings accounts
Liabilities
Deposits	(4,557)	(4,956)
Total fair value | Certificates of deposit
Liabilities
Deposits	(1,498)	(1,062)
Total fair value | Wholesale deposits
Liabilities
Deposits	(43)
Total fair value | Government deposits
Liabilities
Deposits	(1,048)	(1,011)
Total fair value | Company controlled deposits
Liabilities
Deposits	(1,311)	(1,371)
Total fair value | Level 1
Assets
Cash and cash equivalents	204	158
Investment securities available-for-sale	0	0
Investment securities held-to-maturity	0	0
Loans held-for-sale	0	0
Loans held-for-investment	0	0
Loans with government guarantees	0	0
Mortgage servicing rights	0	0
Federal Home Loan Bank stock	0	0
Bank owned life insurance	0	0
Repossessed assets	0	0
Other assets, foreclosure claims	0	0
Derivative financial instruments, assets	0	45
Liabilities
Federal Home Loan Bank advances	0	0
Long-term debt	0	0
Warrant liabilities		0
DOJ litigation settlement	0	0
Contingent consideration	0
Derivative financial instruments, liabilities	0	(11)
Total fair value | Level 1 | Demand deposits and savings accounts
Liabilities
Deposits	0	0
Total fair value | Level 1 | Certificates of deposit
Liabilities
Deposits	0	0
Total fair value | Level 1 | Wholesale deposits
Liabilities
Deposits	0
Total fair value | Level 1 | Government deposits
Liabilities
Deposits	0	0
Total fair value | Level 1 | Company controlled deposits
Liabilities
Deposits	0	0
Total fair value | Level 2
Assets
Cash and cash equivalents	0	0
Investment securities available-for-sale	1,853	1,480
Investment securities held-to-maturity	924	1,084
Loans held-for-sale	4,322	3,178
Loans held-for-investment	8	7
Loans with government guarantees	261	354
Mortgage servicing rights	0	0
Federal Home Loan Bank stock	303	180
Bank owned life insurance	330	271
Repossessed assets	0	0
Other assets, foreclosure claims	84	135
Derivative financial instruments, assets	15	54
Liabilities
Federal Home Loan Bank advances	(5,662)	(2,964)
Long-term debt	(417)	(277)
Warrant liabilities		(4)
DOJ litigation settlement	0	0
Contingent consideration	0
Derivative financial instruments, liabilities	(11)	(37)
Total fair value | Level 2 | Demand deposits and savings accounts
Liabilities
Deposits	(4,557)	(4,956)
Total fair value | Level 2 | Certificates of deposit
Liabilities
Deposits	(1,498)	(1,062)
Total fair value | Level 2 | Wholesale deposits
Liabilities
Deposits	(43)
Total fair value | Level 2 | Government deposits
Liabilities
Deposits	(1,048)	(1,011)
Total fair value | Level 2 | Company controlled deposits
Liabilities
Deposits	(1,311)	(1,371)
Total fair value | Level 3
Assets
Cash and cash equivalents	0	0
Investment securities available-for-sale	0	0
Investment securities held-to-maturity	0	0
Loans held-for-sale	0	0
Loans held-for-investment	7,659	5,991
Loans with government guarantees	0	0
Mortgage servicing rights	291	335
Federal Home Loan Bank stock	0	0
Bank owned life insurance	0	0
Repossessed assets	8	14
Other assets, foreclosure claims	0	0
Derivative financial instruments, assets	24	24
Liabilities
Federal Home Loan Bank advances	0	0
Long-term debt	0	0
Warrant liabilities		0
DOJ litigation settlement	(60)	(60)
Contingent consideration	(25)
Derivative financial instruments, liabilities	0	(6)
Total fair value | Level 3 | Demand deposits and savings accounts
Liabilities
Deposits	0	0
Total fair value | Level 3 | Certificates of deposit
Liabilities
Deposits	0	0
Total fair value | Level 3 | Wholesale deposits
Liabilities
Deposits	0
Total fair value | Level 3 | Government deposits
Liabilities
Deposits	0	0
Total fair value | Level 3 | Company controlled deposits
Liabilities
Deposits	$ 0	$ 0

Fair Value Measurements (Change

Fair Value Measurements (Changes in Fair Value Included in Earnings) (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Loans held-for-sale | Net gain on loan sales
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis
Changes in fair value, gain (loss)	$ 283	$ 269	$ 321
Loans held-for-investment | Other noninterest income
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis
Changes in fair value, gain (loss)	1	1	40
Long-term debt | Other noninterest income
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis
Changes in fair value, gain (loss)	0	0	29
DOJ litigation settlement | Other noninterest income
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis
Changes in fair value, gain (loss)	0	24	0
DOJ litigation settlement | Other noninterest (expense)
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis
Changes in fair value, gain (loss)	$ 0	$ 0	$ (2)

Fair Value Measurements (Fai112

Fair Value Measurements (Fair Value Option Disclosures) (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016
Fair Value, Option, Quantitative Disclosures
Assets, unpaid principal balance (UPB)	$ 4,188	$ 3,196
Total assets at fair value	4,312	3,217
Assets, fair value over/(under) UPB	124	21
DOJ Agreement
Fair Value, Option, Quantitative Disclosures
Litigation settlement payment amount	118
Loans held-for-sale
Fair Value, Option, Quantitative Disclosures
Assets, unpaid principal balance (UPB)	4,173	3,105
Total assets at fair value	4,300	3,145
Assets, fair value over/(under) UPB	127	40
Loans held-for-investment
Fair Value, Option, Quantitative Disclosures
Assets, unpaid principal balance (UPB)	15	91
Total assets at fair value	12	72
Assets, fair value over/(under) UPB	(3)	(19)
DOJ litigation settlement
Fair Value, Option, Quantitative Disclosures
Liabilities, unpaid principal balance (UPB)	(118)	(118)
Long-term debt, fair value	(60)	(60)
Liabilities, fair value over/(under) UPB	58	58
Nonperforming
Fair Value, Option, Quantitative Disclosures
Assets, unpaid principal balance (UPB)	11	21
Total assets at fair value	9	15
Assets, fair value over/(under) UPB	(2)	(6)
Nonperforming | Loans held-for-sale
Fair Value, Option, Quantitative Disclosures
Assets, unpaid principal balance (UPB)	6	2
Total assets at fair value	5	2
Assets, fair value over/(under) UPB	(1)	0
Nonperforming | Loans held-for-investment
Fair Value, Option, Quantitative Disclosures
Assets, unpaid principal balance (UPB)	5	19
Total assets at fair value	4	13
Assets, fair value over/(under) UPB	(1)	(6)
Performing
Fair Value, Option, Quantitative Disclosures
Assets, unpaid principal balance (UPB)	4,177	3,175
Total assets at fair value	4,303	3,202
Assets, fair value over/(under) UPB	126	27
Performing | Loans held-for-sale
Fair Value, Option, Quantitative Disclosures
Assets, unpaid principal balance (UPB)	4,167	3,103
Total assets at fair value	4,295	3,143
Assets, fair value over/(under) UPB	128	40
Performing | Loans held-for-investment
Fair Value, Option, Quantitative Disclosures
Assets, unpaid principal balance (UPB)	10	72
Total assets at fair value	8	59
Assets, fair value over/(under) UPB	$ (2)	$ (13)

Segment Information (Details)

Segment Information (Details) $ in Millions	3 Months Ended												12 Months Ended
	Dec. 31, 2017USD ($)	Sep. 30, 2017USD ($)	Jun. 30, 2017USD ($)	Mar. 31, 2017USD ($)	Dec. 31, 2016USD ($)	Sep. 30, 2016USD ($)	Jun. 30, 2016USD ($)	Mar. 31, 2016USD ($)	Dec. 31, 2015USD ($)	Sep. 30, 2015USD ($)	Jun. 30, 2015USD ($)	Mar. 31, 2015USD ($)	Dec. 31, 2017USD ($)segment	Dec. 31, 2016USD ($)	Dec. 31, 2015USD ($)
Segment Reporting Information
Number of business segments | segment													3
Summary of Operations
Net interest income	$ 107	$ 103	$ 97	$ 83	$ 87	$ 80	$ 77	$ 79	$ 76	$ 73	$ 73	$ 65	$ 390	$ 323	$ 287
Net gain on loan sales	79	75	66	48	57	94	90	75	46	68	83	91	268	316	288
Representation and warranty benefit	2	4	3	4	7	6	4	2	6	6	5	2	13	19	19
Other noninterest income													189	152	163
Total net interest income and noninterest income													860	810	757
Benefit (provision) for loan losses	(2)	(2)	1	(3)	(1)	(7)	3	13	1	1	13	4	(6)	8	19
Depreciation and amortization expense													(40)	(32)	(24)
Other noninterest expense													(603)	(528)	(512)
Total noninterest expense	(178)	(171)	(154)	(140)	(142)	(142)	(139)	(137)	(129)	(131)	(138)	(138)	(643)	(560)	(536)
Income (loss) before income taxes	51	60	60	40	42	87	69	60	45	71	74	50	211	258	240
Provision (benefit) for income taxes	96	20	19	13	14	30	22	21	12	24	28	18	148	87	82
Net income	$ (45)	$ 40	$ 41	$ 27	$ 28	$ 57	$ 47	$ 39	$ 33	$ 47	$ 46	$ 32	63	171	158
Average balances
Loans held-for-sale													4,146	3,134	2,188
Loans with government guarantees													290	435	633
Loans held-for-investment													6,496	5,813	5,076
Total assets													15,846	13,907	11,956
Deposits													8,907	8,762	7,877
Community Banking
Summary of Operations
Net interest income													238	206	171
Net gain on loan sales													(10)	6	(15)
Representation and warranty benefit													0	0	0
Other noninterest income													33	28	25
Total net interest income and noninterest income													261	240	181
Benefit (provision) for loan losses													(4)	10	19
Depreciation and amortization expense													(9)	(7)	(6)
Other noninterest expense													(188)	(173)	(154)
Total noninterest expense													(197)	(180)	(160)
Income (loss) before income taxes													60	70	40
Provision (benefit) for income taxes													21	24	14
Net income													39	46	26
Average balances
Loans held-for-sale													16	66	40
Loans with government guarantees													0	0	0
Loans held-for-investment													6,460	5,807	4,986
Total assets													6,544	5,906	4,972
Deposits													7,454	7,151	6,674
Mortgage Originations
Summary of Operations
Net interest income													129	90	80
Net gain on loan sales													278	310	303
Representation and warranty benefit													13	19	19
Other noninterest income													79	24	74
Total net interest income and noninterest income													499	443	476
Benefit (provision) for loan losses													(4)	(2)	0
Depreciation and amortization expense													(8)	(5)	(3)
Other noninterest expense													(318)	(253)	(244)
Total noninterest expense													(326)	(258)	(247)
Income (loss) before income taxes													169	183	229
Provision (benefit) for income taxes													59	64	80
Net income													110	119	149
Average balances
Loans held-for-sale													4,130	3,068	2,148
Loans with government guarantees													290	435	633
Loans held-for-investment													7	6	4
Total assets													5,414	4,435	3,553
Deposits													0	0	0
Mortgage Servicing
Summary of Operations
Net interest income													22	25	5
Net gain on loan sales													0	0	0
Representation and warranty benefit													0	0	0
Other noninterest income													55	56	60
Total net interest income and noninterest income													77	81	65
Benefit (provision) for loan losses													0	0	0
Depreciation and amortization expense													(4)	(4)	(3)
Other noninterest expense													(96)	(97)	(105)
Total noninterest expense													(100)	(101)	(108)
Income (loss) before income taxes													(23)	(20)	(43)
Provision (benefit) for income taxes													(8)	(7)	(15)
Net income													(15)	(13)	(28)
Average balances
Loans held-for-sale													0	0	0
Loans with government guarantees													0	0	0
Loans held-for-investment													0	0	0
Total assets													36	28	52
Deposits													1,453	1,611	1,203
Other
Summary of Operations
Net interest income													1	2	31
Net gain on loan sales													0	0	0
Representation and warranty benefit													0	0	0
Other noninterest income													22	44	4
Total net interest income and noninterest income													23	46	35
Benefit (provision) for loan losses													2	0	0
Depreciation and amortization expense													(19)	(16)	(12)
Other noninterest expense													(1)	(5)	(9)
Total noninterest expense													(20)	(21)	(21)
Income (loss) before income taxes													5	25	14
Provision (benefit) for income taxes													76	6	3
Net income													(71)	19	11
Average balances
Loans held-for-sale													0	0	0
Loans with government guarantees													0	0	0
Loans held-for-investment													29	0	86
Total assets													3,852	3,538	3,379
Deposits													0	0	0
Intersegment Eliminations
Summary of Operations
Total net interest income and noninterest income													0	0	0
Intersegment Eliminations | Community Banking
Summary of Operations
Total net interest income and noninterest income													(6)	(3)	(15)
Intersegment Eliminations | Mortgage Originations
Summary of Operations
Total net interest income and noninterest income													4	(1)	7
Intersegment Eliminations | Mortgage Servicing
Summary of Operations
Total net interest income and noninterest income													19	23	20
Intersegment Eliminations | Other
Summary of Operations
Total net interest income and noninterest income													$ (17)	$ (19)	$ (12)

Holding Company Only Financi114

Holding Company Only Financial Statements (Condensed Unconsolidated Statements of Financial Condition) (Details) - USD ($) $ in Millions	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Assets
Cash and cash equivalents	$ 204	$ 158	$ 208	$ 136
Other assets	691	781
Total assets	16,912	14,053
Liabilities
Long-term debt	494	493
Other liabilities	405	417
Total liabilities	15,513	12,717
Stockholders’ Equity
Common stock	1	1
Additional paid in capital	1,512	1,503
Accumulated other comprehensive income	(16)	(7)
Accumulated deficit	(98)	(161)
Total stockholders’ equity	1,399	1,336	1,529	1,373
Total liabilities and stockholders’ equity	16,912	14,053
Unconsolidated trusts	7	7
Parent Company
Assets
Cash and cash equivalents	196	70	$ 37	$ 46
Investment in subsidiaries	1,676	1,728
Other assets	44	57
Total assets	1,916	1,855
Liabilities
Long-term debt	494	493
Other liabilities	23	26
Total liabilities	517	519
Stockholders’ Equity
Common stock	1	1
Additional paid in capital	1,512	1,503
Accumulated other comprehensive income	(17)	(7)
Accumulated deficit	(97)	(161)
Total stockholders’ equity	1,399	1,336
Total liabilities and stockholders’ equity	$ 1,916	$ 1,855

Holding Company Only Financi115

Holding Company Only Financial Statements (Condensed Unconsolidated Statements of Operations) (Details) - USD ($) $ in Millions	3 Months Ended												12 Months Ended
	Dec. 31, 2017	Sep. 30, 2017	Jun. 30, 2017	Mar. 31, 2017	Dec. 31, 2016	Sep. 30, 2016	Jun. 30, 2016	Mar. 31, 2016	Dec. 31, 2015	Sep. 30, 2015	Jun. 30, 2015	Mar. 31, 2015	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Income Statement
Interest	$ 41	$ 37	$ 32	$ 27	$ 24	$ 26	$ 22	$ 22	$ 19	$ 18	$ 17	$ 14	$ 137	$ 94	$ 68
Income (loss) before income taxes	51	60	60	40	42	87	69	60	45	71	74	50	211	258	240
Provision (benefit) for income taxes	96	20	19	13	14	30	22	21	12	24	28	18	148	87	82
Net income	$ (45)	$ 40	$ 41	$ 27	$ 28	$ 57	$ 47	$ 39	$ 33	$ 47	$ 46	$ 32	63	171	158
Other comprehensive (loss) income													(9)	(9)	(6)
Comprehensive income													54	162	152
Parent Company
Income Statement
Interest													25	16	7
General and administrative													9	9	13
Total													34	25	20
Loss before undistributed income of subsidiaries													(34)	(25)	(20)
Equity in undistributed income of subsidiaries													110	188	172
Income (loss) before income taxes													76	163	152
Provision (benefit) for income taxes													13	(8)	(6)
Net income													63	171	158
Other comprehensive (loss) income													(9)	(9)	(6)
Comprehensive income													$ 54	$ 162	$ 152

Holding Company Only Financi116

Holding Company Only Financial Statements (Condensed Unconsolidated Statements of Cash Flow) (Details) - USD ($) $ in Millions	3 Months Ended												12 Months Ended
	Dec. 31, 2017	Sep. 30, 2017	Jun. 30, 2017	Mar. 31, 2017	Dec. 31, 2016	Sep. 30, 2016	Jun. 30, 2016	Mar. 31, 2016	Dec. 31, 2015	Sep. 30, 2015	Jun. 30, 2015	Mar. 31, 2015	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Operating Activities
Net income	$ (45)	$ 40	$ 41	$ 27	$ 28	$ 57	$ 47	$ 39	$ 33	$ 47	$ 46	$ 32	$ 63	$ 171	$ 158
Adjustments to reconcile net income to net cash used in operating activities:
Change in other assets													54	(59)	211
Provision for deferred tax benefit													146	83	80
Change in other liabilities													(42)	55	(11)
Change in fair value and other non-cash changes													(280)	(168)	(132)
Net cash (used in) operating activities													(25,291)	(16,360)	(9,547)
Investing Activities
Net cash provided by investing activities													22,494	16,201	5,885
Financing Activities
Redemption of preferred stock													0	(267)	0
Dividends paid on preferred stock													0	(105)	0
Net cash provided by financing activities													2,843	109	3,734
Net increase (decrease) in cash and cash equivalents													46	(50)	72
Beginning cash and cash equivalents				158				208				136	158	208	136
Ending cash and cash equivalents	204				158				208				204	158	208
Parent Company
Operating Activities
Net income													63	171	158
Adjustments to reconcile net income to net cash used in operating activities:
Equity in (income) loss of subsidiaries													47	12	(172)
Stock-based compensation													5	10	3
Change in other assets													18	(8)	(6)
Provision for deferred tax benefit													0	0	1
Change in other liabilities													(2)	(22)	9
Change in fair value and other non-cash changes													(5)	(4)	0
Net cash (used in) operating activities													126	159	(7)
Investing Activities
Net change in investment in subsidiaries													0	0	(2)
Net cash provided by investing activities													0	0	(2)
Financing Activities
Proceeds from the issuance of junior subordinated debentures													0	245	0
Redemption of preferred stock													0	(267)	0
Dividends paid on preferred stock													0	(104)	0
Net cash provided by financing activities													0	(126)	0
Net increase (decrease) in cash and cash equivalents													126	33	(9)
Beginning cash and cash equivalents				$ 70				$ 37				$ 46	70	37	46
Ending cash and cash equivalents	$ 196				$ 70				$ 37				$ 196	$ 70	$ 37

Quarterly Financial Data (Un117

Quarterly Financial Data (Unaudited) (Details) - USD ($) $ / shares in Units, $ in Millions	3 Months Ended												12 Months Ended
	Dec. 31, 2017	Sep. 30, 2017	Jun. 30, 2017	Mar. 31, 2017	Dec. 31, 2016	Sep. 30, 2016	Jun. 30, 2016	Mar. 31, 2016	Dec. 31, 2015	Sep. 30, 2015	Jun. 30, 2015	Mar. 31, 2015	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Quarterly Financial Information Disclosure [Abstract]
Interest income	$ 148	$ 140	$ 129	$ 110	$ 111	$ 106	$ 99	$ 101	$ 95	$ 91	$ 90	$ 79	$ 527	$ 417	$ 355
Interest expense	41	37	32	27	24	26	22	22	19	18	17	14	137	94	68
Net interest income	107	103	97	83	87	80	77	79	76	73	73	65	390	323	287
Provision (benefit) for loan losses	2	2	(1)	3	1	7	(3)	(13)	(1)	(1)	(13)	(4)	6	(8)	(19)
Net interest income after provision (benefit) for loan losses	105	101	98	80	86	73	80	92	77	74	86	69	384	331	306
Net gain on loan sales	79	75	66	48	57	94	90	75	46	68	83	91	268	316	288
Loan fees and charges	24	23	20	15	20	22	19	15	14	17	19	17	82	76	67
Deposit fees and charges	4	5	5	4									18	22	25
Loan administration income	5	5	6	5	4	4	4	6	7	8	7	4	21	18	26
Net return (loss) on the mortgage servicing rights	(4)	6	6	14	(5)	(11)	(4)	(6)	9	12	9	(2)	22	(26)	28
Representation and warranty benefit	2	4	3	4	7	6	4	2	6	6	5	2	13	19	19
Other noninterest income	14	12	10	10	15	41	15	13	15	17	3	7	46	62	17
Noninterest expense	178	171	154	140	142	142	139	137	129	131	138	138	643	560	536
Income (loss) before income taxes	51	60	60	40	42	87	69	60	45	71	74	50	211	258	240
Provision for income taxes	96	20	19	13	14	30	22	21	12	24	28	18	148	87	82
Net income	$ (45)	$ 40	$ 41	$ 27	$ 28	$ 57	$ 47	$ 39	$ 33	$ 47	$ 46	$ 32	$ 63	$ 171	$ 158
Basic income (loss) per share (in usd per share)	$ (0.79)	$ 0.71	$ 0.72	$ 0.47	$ 0.50	$ 0.98	$ 0.67	$ 0.56	$ 0.45	$ 0.70	$ 0.69	$ 0.43	$ 1.11	$ 2.71	$ 2.27
Diluted income (loss) per share (in usd per share)	$ (0.79)	$ 0.70	$ 0.71	$ 0.46	$ 0.49	$ 0.96	$ 0.66	$ 0.54	$ 0.44	$ 0.69	$ 0.68	$ 0.43	$ 1.09	$ 2.66	$ 2.24