Mortgage Servicing Rights (Tables)
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Dec. 31, 2014
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Transfers and Servicing [Abstract] | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Activity for Residential First Mortgage MSRs |
The table below presents activity for residential mortgage and home equity MSRs for 2014 and 2013. Residential reverse mortgage MSRs, which are carried at the lower of cost or fair value and accounted for using the amortization method, totaled $10 million at December 31, 2013, and are not included in the tables below.
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Assumption for Fair Value of MSRs |
Significant economic assumptions in estimating the fair value of MSRs at December 31, 2014 and 2013 are presented below. The change in fair value as a result of changes in OAS rates is included within “Model and other cash flow assumption changes” in the Rollforward of Mortgage Servicing Rights table. The weighted-average life is not an input in the valuation model but is a product of both changes in market rates of interest and changes in model and other cash flow assumptions. The weighted-average life represents the average period of time that the MSRs’ cash flows are expected to be received. Absent other changes, an increase (decrease) to the weighted-average life would generally result in an increase (decrease) in the fair value of the MSRs.
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Sensitivity of the Weighted-Average Lives and Fair Value of MSRs |
The table below presents the sensitivity of the weighted-average lives and fair value of MSRs to changes in modeled assumptions. These sensitivities are hypothetical and should be used with caution. As the amounts indicate, changes in fair value based on variations in assumptions generally cannot be extrapolated because the relationship of the change in assumption to the change in fair value may not be linear. Also, the effect of a variation in a particular assumption on the fair value of MSRs that continue to be held by the Corporation is calculated without changing any other assumption. In reality, changes in one factor may result in changes in another, which might magnify or counteract the sensitivities. The below sensitivities do not reflect any hedge strategies that may be undertaken to mitigate such risk.
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