Quarterly report pursuant to Section 13 or 15(d)

Derivatives - Narrative (Details)

v3.21.1
Derivatives - Narrative (Details) - USD ($)
$ in Millions
3 Months Ended
Mar. 31, 2021
Dec. 31, 2020
Mar. 31, 2020
Dec. 31, 2019
Derivative [Line Items]        
Shareholders’ equity $ 274,000 $ 272,924 $ 264,918 $ 264,810
Net income (loss) in AOCI expected to be reclassified, after tax 220      
Net income (loss) in AOCI expected to be reclassified $ 294      
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 $ 1,900      
Credit derivatives        
Derivative [Line Items]        
Cash and securities held as collateral 89,300 96,500    
Cash and securities collateral posted 72,700 88,600    
Collateral not yet posted 3,000      
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 5,400 $ 5,500    
Derivatives        
Derivative [Line Items]        
Shareholders’ equity (688)      
Pretax income (loss) in accumulated OCI $ (917)