Quarterly report [Sections 13 or 15(d)]

Derivatives - Narrative (Details)

v3.25.1
Derivatives - Narrative (Details) - USD ($)
$ in Millions
 3 Months Ended
Mar. 31, 2025
Mar. 31, 2024
Dec. 31, 2024
Dec. 31, 2023
Derivative [Line Items]        
Shareholders’ equity $ 295,581 $ 293,552 $ 295,559 $ 291,646
Net loss in AOCI expected to be reclassified, after tax 2,400      
Net loss in AOCI expected to be reclassified $ 3,200      
Open cash flow hedge, forecasted transactions hedging period (in years) 5 years      
Terminated cash flow hedges, period forecasted transaction recognized in interest income (in years) 4 years      
Bank of America, N.A.        
Derivative [Line Items]        
Collateral not yet posted $ 1,500      
Interest rate risk on long-term debt        
Derivative [Line Items]        
Decrease in liability 12,900   11,200  
Interest rate risk on AFS securities        
Derivative [Line Items]        
Available-for-sale securities from discontinued hedging relationships cumulative decrease 3,800   4,400  
Credit derivatives        
Derivative [Line Items]        
Cash and securities held as collateral 102,800   105,900  
Cash and securities collateral posted 83,000   83,100  
Collateral not yet posted 3,100      
Foreign Mortgage-backed Securities and Foreign Securities        
Derivative [Line Items]        
Transfer of mortgage-backed securities to third-party trust 3,900   3,900  
Gross cash proceeds from transfer of securities 3,900   3,900  
Fair value of derecognized assets 3,700   3,600  
Derivatives        
Derivative [Line Items]        
Shareholders’ equity (4,275) (8,432) $ (5,588) $ (8,016)
Pretax loss in accumulated OCI 5,700      
Pretax losses reclassified from accumulated OCI 390 508    
Derivatives | Market making and similar activities        
Derivative [Line Items]        
Pretax losses reclassified from accumulated OCI $ 0 $ 59