Quarterly report pursuant to Section 13 or 15(d)

Commitments and Contingencies - Other Guarantees (Details)

v3.20.2
Commitments and Contingencies - Other Guarantees (Details) - USD ($)
$ in Millions
 3 Months Ended 6 Months Ended 12 Months Ended
Jun. 30, 2020
Jun. 30, 2019
Jun. 30, 2020
Jun. 30, 2019
Dec. 31, 2019
Loss Contingencies [Line Items]          
Non-cash pretax impairment charge         $ 2,100
Subsidiary, ownership interest, percentage     100.00%    
Merchant Servicing Joint Venture          
Loss Contingencies [Line Items]          
Equity method investment, ownership percentage 49.00%   49.00%    
Carrying value of investment $ 614   $ 614   640
Merchant Processing Servicers, Sponsored Entities          
Loss Contingencies [Line Items]          
Transactions processed by sponsored entities 183,100 $ 235,700 386,900 $ 441,300  
Losses as result of cardholder disputed transactions 6 $ 7 $ 13 $ 11  
BofA Finance LLC          
Loss Contingencies [Line Items]          
Subsidiary, ownership interest, percentage     100.00%    
Life Insurance Book Value Protection          
Loss Contingencies [Line Items]          
Notional amount of derivatives 7,100   $ 7,100   7,300
Maximum potential exposure 1,000   1,000   1,100
Merchant Services | Merchant Processing Servicers, Sponsored Entities          
Loss Contingencies [Line Items]          
Maximum potential exposure 307,900   307,900   384,200
FICC Repo Program          
Loss Contingencies [Line Items]          
Maximum potential exposure 3,800   3,800   9,300
Other Guarantee          
Loss Contingencies [Line Items]          
Maximum potential exposure 8,800   8,800   8,700
Representations and Warranties Obligations and Corporate Guarantees          
Loss Contingencies [Line Items]          
Loss contingency accrual $ 1,400   $ 1,400   $ 1,800