Mortgage Servicing Rights and Related Liabilities - MSRs and Related Liabilities (Details) - USD ($) $ in Millions	Mar. 31, 2021	Dec. 31, 2020
Mortgage Servicing Rights [Line Items]
Forward MSRs - fair value	$ 3,354	$ 2,703
Mortgage servicing rights	3,359	2,708
Mortgage servicing liabilities - amortized cost	38	41
Excess spread financing - fair value	934	934
Mortgage servicing rights financing - fair value	23	33
MSR related liabilities - nonrecourse at fair value	957	967
Mortgage servicing rights
Mortgage Servicing Rights [Line Items]
Forward MSRs - fair value	3,354	2,703
Reverse MSRs - amortized cost	5	5
Mortgage servicing liabilities - amortized cost	$ 38	$ 41

Excess Spread Financing, Fair Value Disclosure

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- Definition

Mortgage Servicing Rights Liability Resulting from Sale or Securitization of Servicer Advances, Rights not Accounted for as a Sale

+ References

No definition available.

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- Definition

Mortgage Servicing Rights [Line Items]

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- Definition

Mortgage Serving Rights Liability, carried at fair value

+ References

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- Definition

Aggregate amount of servicing assets that are subsequently measured at fair value and servicing assets that are subsequently measured using the amortization method.

+ References

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- Definition

Amortized amount of contract to service financial assets under which the benefits of servicing are expected to more than adequately compensate the servicer.

+ References

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-Publisher FASB
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- Definition

Fair value of an asset representing net future revenue from contractually specified servicing fees, late charges, and other ancillary revenues, in excess of future costs related to servicing arrangements.

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- Definition

Amortized amount of contract to service financial assets under which estimated future revenues from contractually specified servicing fees, late charges, and other ancillary revenue are not expected to adequately compensate the servicer for performing the servicing.

+ References

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