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Securitizations and Variable Interest Entities, Key Economic Assumptions - Mortgage Servicing Assets (Details) (Residential Mortgage Servicing [Member], USD $)
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3 Months Ended | |
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Mar. 31, 2012
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Mar. 31, 2011
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Residential Mortgage Servicing [Member]
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| Fair Value Assumption, Date of Securitization or Asset-backed Financing Arrangement, Transferor's Continuing Involvement, Servicing Assets or Liabilities [Line Items] | ||
| Prepayment speed (annual CPR) | 13.10% | 11.40% |
| Discount rate | 7.10% | 7.90% |
| Cost to service ($ per loan) | $ 119 | $ 134 |
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- Definition
The discount rate which is used to value residual cash flows generated by financial assets of the securitization, asset-backed financing arrangement, or similar transfer. This is used as a key assumption in measuring the fair value of assets or liabilities that relate to a transferor's assets obtained or liabilities incurred, if any, at the time of securitization, asset-backed financing, or similar transfer. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Details
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- Definition
Estimated speed of prepayments of principal on financial assets. This is used as a key assumption in measuring the fair value of assets obtained or liabilities incurred that relate to a transferor's continuing involvement, if any, at the time of securitization, asset-backed financing, or similar transfer. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition
The cost to service dollar amount per loan which is used to value residual cash flows generated by financial assets of the securitization, asset-backed financing arrangement, or similar transfer. This is used as a key assumption in measuring the fair value of assets or liabilities that relate to a transferor's assets obtained or liabilities incurred, if any, at the time of securitization, asset-backed financing, or similar transfer. No definition available.
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