Quarterly report pursuant to Section 13 or 15(d)

Derivatives - Narrative (Details)

v3.2.0.727
Derivatives - Narrative (Details) - USD ($)
$ in Millions
6 Months Ended
Jun. 30, 2015
Dec. 31, 2014
Jun. 30, 2014
Dec. 31, 2013
Derivative [Line Items]        
Net loss on derivatives in AOCI $ 251,659 $ 243,471 $ 237,411 $ 232,685
Net Losses in AOCI expected to be reclassified to earnings 698      
Net Losses in AOCI expected to be reclassified to earnings, after tax 436      
Credit derivatives        
Derivative [Line Items]        
Derivative assets 110      
Total gross derivative liabilities, before netting 15      
Fair value of derivative 9,100      
Cash and securities held as collateral 73,500 82,000    
Cash and securities collateral posted 62,500 67,700    
Collateral not yet posted 1,400      
Aggregate fair value of derivative liability 397      
Credit derivatives, Unilateral Termination Option        
Derivative [Line Items]        
Cash and securities collateral posted 16      
Foreign Mortgage-backed Securities and Foreign Securities        
Derivative [Line Items]        
Marketable securities transferred 8,900      
Proceeds from sale of securities 8,900      
Purchased credit derivatives | Credit derivatives        
Derivative [Line Items]        
Carrying value of written credit derivatives 5,100 5,700    
Notional amount of written credit derivatives 814,100 880,600    
Bank of America, N.A. | Credit derivatives        
Derivative [Line Items]        
Collateral not yet posted 659      
Accumulated Net Gain (Loss) from Designated or Qualifying Cash Flow Hedges        
Derivative [Line Items]        
Net loss on derivatives in AOCI $ (1,372) $ (1,661) $ (2,062) $ (2,277)