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v3.23.2

Goodwill Mortgage Servicing Rights (Commercial and Residential Mortgage Servicing Rights - Key Valuation Assumptions) (Details) $ in Millions | 6 Months Ended | 12 Months Ended |  |
--- | --- | --- | --- | ---
Jun. 30, 2023 USD ($) | Dec. 31, 2022 USD ($) | Jun. 30, 2022 USD ($) | Dec. 31, 2021 USD ($)
Sensitivity Analysis of Fair Value of Interests Continued to be Held by Transferor, Servicing Assets or Liabilities, Impact of Adverse Change in Assumption [Line Items] |  |  |  |
Fair Value | $ 3,455 | $ 3,423 |  |
Mortgage Servicing Rights | Commercial real estate |  |  |  |
Sensitivity Analysis of Fair Value of Interests Continued to be Held by Transferor, Servicing Assets or Liabilities, Impact of Adverse Change in Assumption [Line Items] |  |  |  |
Fair Value | $ 1,106 | $ 1,113 | $ 988 | $ 740
Weighted-average life (years) | 3 years 10 months 24 days | 4 years |  |
Decline in fair value from 10% adverse change in prepayment rate | $ 7 | $ 8 |  |
Decline in fair value from 20% adverse change in prepayment rate | 14 | 15 |  |
Decline in fair value from 10% adverse change in interest rate | 33 | 34 |  |
Decline in fair value from 20% adverse change in interest rate | 65 | 68 |  |
Mortgage Servicing Rights | Residential mortgage loans held for sale |  |  |  |
Sensitivity Analysis of Fair Value of Interests Continued to be Held by Transferor, Servicing Assets or Liabilities, Impact of Adverse Change in Assumption [Line Items] |  |  |  |
Fair Value | $ 2,349 | $ 2,310 | $ 1,620 | $ 1,078
Weighted-average life (years) | 7 years 9 months 18 days | 8 years |  |
Decline in fair value from 10% adverse change in prepayment rate | $ 56 | $ 55 |  |
Decline in fair value from 20% adverse change in prepayment rate | $ 108 | $ 107 |  |
Spread over the benchmark curve | 7.67% | 7.66% |  |
Decline in fair value from 10% adverse change in adjusted spread | $ 69 | $ 69 |  |
Decline in fair value from 20% adverse change in adjusted spread | $ 135 | $ 134 |  |
Mortgage Servicing Rights | Measurement Input, Constant Prepayment Rate | Commercial real estate |  |  |  |
Sensitivity Analysis of Fair Value of Interests Continued to be Held by Transferor, Servicing Assets or Liabilities, Impact of Adverse Change in Assumption [Line Items] |  |  |  |
Servicing asset, measurement input | 0.0438 | 0.0428 |  |
Mortgage Servicing Rights | Measurement Input, Constant Prepayment Rate | Residential mortgage loans held for sale |  |  |  |
Sensitivity Analysis of Fair Value of Interests Continued to be Held by Transferor, Servicing Assets or Liabilities, Impact of Adverse Change in Assumption [Line Items] |  |  |  |
Servicing asset, measurement input | 0.0691 | 0.0672 |  |
Mortgage Servicing Rights | Measurement Input, Discount Rate | Commercial real estate |  |  |  |
Sensitivity Analysis of Fair Value of Interests Continued to be Held by Transferor, Servicing Assets or Liabilities, Impact of Adverse Change in Assumption [Line Items] |  |  |  |
Servicing asset, measurement input | 0.0989 | 0.0977 |  |

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- Definition The hypothetical financial impact of a 10 percent adverse change of the discount rate 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. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 860 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 4 -Subparagraph (c) -Publisher FASB -URI https://asc.fasb.org//1943274/2147481326/860-20-50-4 + Details
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