Mortgage Loans Held for Sale and Investment - Reconciliation to Cash Flow (Details) - USD ($) $ in Millions	6 Months Ended
Jun. 30, 2019	Jun. 30, 2018
Loans Receivable Held-for-sale, Net, Reconciliation to Cash Flow [Roll Forward]
Balance - beginning of period	$ 1,631	$ 1,891
Mortgage loans originated and purchased, net of fees	16,257	10,630
Loans sold	(15,203)	(11,377)
Repurchase of loans out of Ginnie Mae securitizations	715	475
Transfer of mortgage loans held for sale to advances/accounts receivable, net related to claims	(7)	(6)
Net transfer of mortgage loans held for sale from REO in other assets	7	12
Changes in fair value	16	1
Other purchase-related activities	6	9
Balance - end of period	$ 3,422	$ 1,635

Claims Made to Third Parties

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- Definition

Loans Receivable Held-for-sale, Reconciliation to Cash Flow, Changes in Fair Value

+ References

No definition available.

+ Details

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- Definition

Loans Receivable Held-for-sale, Reconciliation to Cash Flow, Other

+ References

No definition available.

+ Details

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- Definition

Loans Receivable Held-for-sale, Reconciliation to Cash Flow, Transfer from Held-for-sale to Held For Investment or Other Assets

+ References

No definition available.

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- Definition

Repurchase of Ginnie Mae Receivables

+ References

No definition available.

+ Details

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- Definition

The face amount of loans that will be sold to other entities.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 310
-SubTopic 10
-Section 45
-Paragraph 2
-URI http://asc.fasb.org/extlink&oid=118952595&loc=d3e4428-111522

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- Definition

A roll forward is a reconciliation of a concept from the beginning of a period to the end of a period.

+ References

No definition available.

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- Definition

Amount, after allowance for bad debt, of additions to loan receivables held-for-sale that are not part of a disposal group.

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- Definition

Amount, after allowance for bad debt, of deductions to loan receivables held-for-sale that are not part of a disposal group.

+ References

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