A valuation allowance for financing receivables that are expected to be uncollectible.

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 310

-SubTopic 10

-Section 50

-Paragraph 11B

-Subparagraph (c)(1)

-URI http://asc.fasb.org/extlink&oid=35738203&loc=SL6953423-111524

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- Definition

The valuation allowance for financing receivables that are expected to be uncollectible that were collectively evaluated for impairment.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 310

-SubTopic 10

-Section 50

-Paragraph 11B

-Subparagraph (g)

-URI http://asc.fasb.org/extlink&oid=35738203&loc=SL6953423-111524

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- Definition

Amount of valuation allowance for financing receivables that are expected to be uncollectible that were individually evaluated for impairment.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 310

-SubTopic 10

-Section 50

-Paragraph 11B

-Subparagraph (g)

-URI http://asc.fasb.org/extlink&oid=35738203&loc=SL6953423-111524

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Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

No definition available.

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- Definition

The balance of financing receivables that were collectively evaluated for impairment.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 310

-SubTopic 10

-Section 50

-Paragraph 11B

-Subparagraph (h)

-URI http://asc.fasb.org/extlink&oid=35738203&loc=SL6953423-111524

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- Definition

The balance of financing receivables that were individually evaluated for impairment.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 310

-SubTopic 10

-Section 50

-Paragraph 11B

-Subparagraph (h)

-URI http://asc.fasb.org/extlink&oid=35738203&loc=SL6953423-111524

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- Definition

Amount representing an agreement for an unconditional promise by the maker to pay the entity (holder) a definite sum of money at a future date. Such amount may include accrued interest receivable in accordance with the terms of the note. The note also may contain provisions and related items including a discount or premium, payable on demand, secured, or unsecured, interest bearing or noninterest bearing, among a myriad of other features and characteristics. Excludes amounts related to receivables held-for-sale.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 942

-SubTopic 210

-Section S99

-Paragraph 1

-Subparagraph (SX 210.9-03.10(3))

-URI http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878

Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 03

-Paragraph 10

-Subparagraph 3

-Article 9

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Loans Held-for-Investment (Allowance Additional Disclosure) (Details) - USD ($) $ in Millions	Jun. 30, 2015	Mar. 31, 2015	Dec. 31, 2014	Jun. 30, 2014	Mar. 31, 2014	Dec. 31, 2013
Allowance for Loan Losses [Line Items]
Individually evaluated	$ 126		$ 417
Collectively evaluated	5,027		3,820
Total loans	5,153		4,237
Individually evaluated	23		88
Collectively evaluated	199		209
Total allowance for loan losses	222	$ 253	297	$ 306	$ 307	$ 207
Residential First Mortgage
Allowance for Loan Losses [Line Items]
Individually evaluated	94		385
Collectively evaluated	2,360		1,782
Total loans	2,454		2,167
Individually evaluated	14		82
Collectively evaluated	137		152
Total allowance for loan losses	151	188	234	249	255	162
Second mortgage
Allowance for Loan Losses [Line Items]
Individually evaluated	30		31
Collectively evaluated	65		65
Total loans	95		96
Individually evaluated	8		5
Collectively evaluated	6		7
Total allowance for loan losses	14	12	12	14	14	12
HELOC commitments
Allowance for Loan Losses [Line Items]
Individually evaluated	2		1
Collectively evaluated	327		124
Total loans	329		125
Individually evaluated	1		1
Collectively evaluated	24		18
Total allowance for loan losses	25	21	19	14	12	8
Other
Allowance for Loan Losses [Line Items]
Individually evaluated	0		0
Collectively evaluated	31		31
Total loans	31		31
Individually evaluated	0		0
Collectively evaluated	1		1
Total allowance for loan losses	1	0	1	2	1	2
Commercial real estate
Allowance for Loan Losses [Line Items]
Individually evaluated	0		0
Collectively evaluated	629		620
Total loans	629		620
Individually evaluated	0		0
Collectively evaluated	15		17
Total allowance for loan losses	15	16	17	19	18	19
Commercial and industrial
Allowance for Loan Losses [Line Items]
Individually evaluated	0		0
Collectively evaluated	412		429
Total loans	412		429
Individually evaluated	0		0
Collectively evaluated	12		11
Total allowance for loan losses	12	12	11	5	5	3
Warehouse lending
Allowance for Loan Losses [Line Items]
Individually evaluated	0		0
Collectively evaluated	1,203		769
Total loans	1,203		769
Individually evaluated	0		0
Collectively evaluated	4		3
Total allowance for loan losses	$ 4	$ 4	$ 3	$ 3	$ 2	$ 1