Quarterly report pursuant to Section 13 or 15(d)

Derivatives - Narrative (Details)

v3.20.2
Derivatives - Narrative (Details) - USD ($)
$ in Millions
9 Months Ended
Sep. 30, 2020
Jun. 30, 2020
Dec. 31, 2019
Sep. 30, 2019
Jun. 30, 2019
Dec. 31, 2018
Derivative [Line Items]            
Shareholders’ equity $ 268,850 $ 265,637 $ 264,810 $ 268,387 $ 271,408 $ 265,325
Net income (loss) in AOCI expected to be reclassified, after tax 191          
Net income (loss) in AOCI expected to be reclassified $ 252          
Terminated cash flow hedges, forecasted transaction hedging period 3 years          
Terminated cash flow hedges, maximum forecasted transaction hedging period 16 years          
Bank of America, N.A.            
Derivative [Line Items]            
Collateral not yet posted $ 945          
Credit derivatives            
Derivative [Line Items]            
Cash and securities held as collateral 91,700   84,300      
Cash and securities collateral posted 79,900   69,100      
Collateral not yet posted 1,900          
Foreign Mortgage-backed Securities and Foreign Securities            
Derivative [Line Items]            
Transfer of mortgage-backed securities to third-party trust 5,100   5,200      
Gross cash proceeds from transfer of securities 5,100   5,200      
Fair value of derecognized assets 5,200   $ 5,300      
Derivatives            
Derivative [Line Items]            
Shareholders’ equity 408          
Pretax income (loss) in accumulated OCI $ 542