Servicing of Financial Assets (Data And Assumptions Used In The Fair Value Calculation As Well As The Valuation's Sensitivity To Rate Fluctuations Related To Mortgage Servicing Rights) (Details) $ in Millions |
12 Months Ended | |
|---|---|---|
|
Dec. 31, 2019
USD ($)
basis_point
|
Dec. 31, 2018
USD ($)
basis_point
|
|
| Servicing Assets at Fair Value [Line Items] | ||
| Unpaid principal balance | $ 34,467 | $ 36,450 |
| Weighted-average CPR (%) | 12.00% | 9.00% |
| Estimated impact on fair value of a 10% increase | $ (19) | $ (24) |
| Estimated impact on fair value of a 20% increase | $ (35) | $ (43) |
| Option-adjusted spread (basis points) | basis_point | 618 | 755 |
| Estimated impact on fair value of a 10% increase | $ (8) | $ (13) |
| Estimated impact on fair value of a 20% increase | $ (16) | $ (26) |
| Weighted-Average Coupon Interest Rate | 4.20% | 4.20% |
| Weighted-average remaining maturity (months) | 278 months | 281 months |
| Weighted-average servicing fee (basis points) | basis_point | 27.3 | 27.1 |
| X | ||||||||||
- Definition Option-adjusted spread (basis points) No definition available.
|
| X | ||||||||||
- Definition Residential mortgage servicing rights, weighted-average coupon interest rate No definition available.
|
| X | ||||||||||
- Definition Weighted-average servicing fee (basis points) No definition available.
|
| X | ||||||||||
- Definition Weighted average life of securitized assets regardless of when the transfer occurred, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|
| X | ||||||||||
- Definition Estimated rate of prepayment of principal on financial assets regardless of when the transfer occurred. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|
| X | ||||||||||
- Definition Amount of transferred financial assets in which the transferor has continuing involvement with the assets underlying the transaction that continue to be recognized in the statement of financial position. Includes, but is not limited to, servicing, recourse, and restrictions on transferor's interests in transferred financial assets. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|
| X | ||||||||||
- Definition The hypothetical financial impact of a 10 percent adverse change of the specified assumption on the fair value of transferor's interests in transferred financial assets (including any servicing assets or servicing liabilities) as of the balance sheet date. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|
| X | ||||||||||
- Definition The hypothetical financial impact of a 10 percent adverse change of prepayment speed on the fair value of transferor's interests in transferred financial assets (including any servicing assets or servicing liabilities) as of the balance sheet date. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|
| X | ||||||||||
- Definition The hypothetical financial impact of a 20 percent adverse change of the specified assumption on the fair value of transferor's interests in transferred financial assets (including any servicing assets or servicing liabilities) as of the balance sheet date. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|
| X | ||||||||||
- Definition The hypothetical financial impact of a 20 percent adverse change of prepayment speed on the fair value of transferor's interests in transferred financial assets (including any servicing assets or servicing liabilities) as of the balance sheet date. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|
| X | ||||||||||
- Definition 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. No definition available.
|