Quarterly report pursuant to Section 13 or 15(d)

Derivatives - Narrative (Details)

v3.21.2
Derivatives - Narrative (Details) - USD ($)
$ in Millions
9 Months Ended
Sep. 30, 2021
Jun. 30, 2021
Dec. 31, 2020
Sep. 30, 2020
Jun. 30, 2020
Dec. 31, 2019
Derivative [Line Items]            
Shareholders’ equity $ 272,464 $ 277,119 $ 272,924 $ 268,850 $ 265,637 $ 264,810
Net income (loss) in AOCI expected to be reclassified, after tax 858          
Net income (loss) in AOCI expected to be reclassified $ 1,100          
Terminated cash flow hedges, forecasted transaction hedging period 3 years          
Terminated cash flow hedges, maximum forecasted transaction hedging period 15 years          
Bank of America, N.A.            
Derivative [Line Items]            
Collateral not yet posted $ 1,100          
Credit derivatives            
Derivative [Line Items]            
Cash and securities held as collateral 87,200   96,500      
Cash and securities collateral posted 73,700   88,600      
Collateral not yet posted 2,400          
Foreign Mortgage-backed Securities and Foreign Securities            
Derivative [Line Items]            
Transfer of mortgage-backed securities to third-party trust 4,900   5,200      
Gross cash proceeds from transfer of securities 4,900   5,200      
Fair value of derecognized assets 5,100   $ 5,500      
Derivatives            
Derivative [Line Items]            
Shareholders’ equity (704)          
Pretax income (loss) in accumulated OCI $ (938)