Quarterly report [Sections 13 or 15(d)]

Derivatives - Narrative (Details)

v3.25.3
Derivatives - Narrative (Details) - USD ($)
$ in Millions
9 Months Ended
Sep. 30, 2025
Sep. 30, 2024
Jun. 30, 2025
Dec. 31, 2024
Jun. 30, 2024
Dec. 31, 2023
Derivative [Line Items]            
Shareholders’ equity $ 304,152 $ 296,512 $ 299,599 $ 295,559 $ 293,892 $ 291,646
Net loss in AOCI expected to be reclassified, after tax 2,000          
Net loss in AOCI expected to be reclassified $ 2,600          
Open cash flow hedge, forecasted transactions hedging period (in years) 4 years          
Terminated cash flow hedges, period forecasted transaction recognized in interest income (in years) 3 years          
Bank of America, N.A. and subsidiaries            
Derivative [Line Items]            
Collateral not yet posted $ 1,700          
Interest rate risk on long-term debt            
Derivative [Line Items]            
Decrease in liability 13,300     11,200    
Interest rate risk on AFS securities            
Derivative [Line Items]            
Available-for-sale securities from discontinued hedging relationships cumulative decrease 3,300     4,400    
Credit derivatives            
Derivative [Line Items]            
Cash and securities held as collateral 117,900     105,900    
Cash and securities collateral posted 97,200     83,100    
Collateral not yet posted 3,200          
Foreign Mortgage-backed Securities and Foreign Securities            
Derivative [Line Items]            
Transfer of mortgage-backed securities to third-party trust 4,000     3,900    
Gross cash proceeds from transfer of securities 4,000     3,900    
Fair value of derecognized assets 3,900     3,600    
Derivatives            
Derivative [Line Items]            
Shareholders’ equity (2,443) (4,916)   $ (5,588)   $ (8,016)
Pretax loss in accumulated OCI (3,200)          
Pretax losses reclassified from accumulated OCI 1,148 2,284        
Derivatives | Market making and similar activities            
Derivative [Line Items]            
Pretax losses reclassified from accumulated OCI $ 0 $ 146