Annual report pursuant to Section 13 and 15(d)

Derivatives - Narrative (Details)

v3.24.0.1
Derivatives - Narrative (Details) - USD ($)
$ in Millions
 3 Months Ended 12 Months Ended
Dec. 31, 2023
Dec. 31, 2023
Dec. 31, 2022
Dec. 31, 2021
Dec. 31, 2020
Derivative [Line Items]          
Shareholders’ equity $ 291,646 $ 291,646 $ 273,197 $ 270,066 $ 272,924
Net income (loss) in AOCI expected to be reclassified, after tax   (3,400)      
Net income (loss) in AOCI expected to be reclassified   $ (4,600)      
Open cash flow hedge, forecasted transactions hedging period (in years)   10 years      
Terminated cash flow hedges, period forecasted transaction recognized in interest income (in years)   5 years      
Bank of America, N.A.          
Derivative [Line Items]          
Collateral not yet posted 1,100 $ 1,100      
Credit derivatives          
Derivative [Line Items]          
Cash and securities held as collateral 104,100 104,100 101,300    
Cash and securities collateral posted 93,400 93,400 81,200    
Collateral not yet posted 2,500 2,500      
Foreign Mortgage-backed Securities and Foreign Securities          
Derivative [Line Items]          
Transfer of mortgage-backed securities to third-party trust 4,100 4,100 4,800    
Gross cash proceeds from transfer of securities 4,200 4,200 4,900    
Fair value of derecognized assets 4,100 4,100 4,700    
Derivatives          
Derivative [Line Items]          
Shareholders’ equity (8,016) (8,016) (11,935) (1,880) $ 426
Pretax income (loss) in accumulated OCI (10,700) (10,700)      
Pretax losses reclassified from accumulated OCI   3,159 303 (221)  
Derivatives | Market making and similar activities          
Derivative [Line Items]          
Pretax losses reclassified from accumulated OCI $ 2,000 $ 2,031 $ 0 $ 0