v3.25.2
Derivative And Credit-Related Financial Instruments (Narrative) (Details) - USD ($)
$ in Millions
 3 Months Ended 6 Months Ended
Jun. 30, 2025
Jun. 30, 2024
Dec. 31, 2023
Jun. 30, 2025
Jun. 30, 2024
Dec. 31, 2024
Credit Derivatives [Line Items]            
Cash received as collateral for derivative assets $ 90     $ 90    
Fair value of securities pledged as collateral for derivative assets 52     52    
Cash posted as collateral for derivative liabilities 33     33    
Net cash flow hedge income (loss) included in interest and fees on loans (83) $ (174)   (161) $ (344)  
De-designated Interest swaps       7,000    
Total Impact to risk management hedging income       (130)    
Impact to risk management hedging income     $ (91) (39)    
Amortized - probable cashflows in OCI 0 (52)        
Amoritized Off Market Element 23 49        
Gain/Loss on cash flow hedge de-designation 18 (2)        
Price alignment income 5 17   13 30  
Allowance for credit losses on lending-related commitments 37     37   $ 35
Allowance for credit losses on lending-related commitments, amount related to unused commitments to extend credit 33     33   30
Risk participation agreements covering standby and commercial letters of credit 222     222   223
Standby and commercial letters of credit 4,200     4,200    
Carrying value of standby and commercial letters of credit included in accrued expenses and other liabilities 29     29   34
Deferred fees on standby and commercial letters of credit included in accrued expenses and other liabilities 25     25   29
Allowance for credit losses on lending-related commitments, amount related to standby and commercial letters of credit 4     4   5
Notional amount of derivative credit risk participation agreements 1,000     1,000   1,100
Maximum estimated exposure to credit risk participation agreements assuming 100% default 10     10   1
Noninterest income 274 $ 291   528 $ 527  
Recurring            
Credit Derivatives [Line Items]            
Fair value of derivative liability 908     908   891
Level 3 | Recurring            
Credit Derivatives [Line Items]            
Fair value of derivative liability 10     10   6
Level 3 | Recurring | Other financial derivative liabilities            
Credit Derivatives [Line Items]            
Fair value of derivative liability $ 10     $ 10   $ 6