XML 74 R61.htm IDEA: XBRL DOCUMENT v3.24.1.u1
Goodwill Mortgage Servicing Rights (Commercial and Residential Mortgage Servicing Rights - Key Valuation Assumptions) (Details)
$ in Millions
3 Months Ended 12 Months Ended
Mar. 31, 2024
USD ($)
Dec. 31, 2023
USD ($)
Mar. 31, 2023
USD ($)
Dec. 31, 2022
USD ($)
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 $ 3,762 $ 3,686    
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 $ 1,075 $ 1,032 $ 1,061 $ 1,113
Weighted-average life (years) 3 years 10 months 24 days 3 years 10 months 24 days    
Decline in fair value from 10% adverse change in prepayment rate $ 8 $ 9    
Decline in fair value from 20% adverse change in prepayment rate 16 17    
Decline in fair value from 10% adverse change in interest rate 32 31    
Decline in fair value from 20% adverse change in interest rate 65 61    
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 $ 2,687 $ 2,654 $ 2,232 $ 2,310
Weighted-average life (years) 8 years 1 month 6 days 8 years 1 month 6 days    
Decline in fair value from 10% adverse change in prepayment rate $ 58 $ 60    
Decline in fair value from 20% adverse change in prepayment rate $ 113 $ 117    
Spread over the benchmark curve 7.66% 7.65%    
Decline in fair value from 10% adverse change in adjusted spread $ 83 $ 83    
Decline in fair value from 20% adverse change in adjusted spread $ 162 $ 161    
Mortgage Servicing Rights | 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 0.0524 0.0551    
Mortgage Servicing Rights | 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 0.0629 0.0642    
Mortgage Servicing Rights | 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 0.0994 0.0964