Annual report pursuant to Section 13 and 15(d)

Commitments and Contingencies - Other Guarantees (Details)

v3.20.4
Commitments and Contingencies - Other Guarantees (Details) - USD ($)
$ in Millions
 12 Months Ended
Dec. 31, 2020
Jun. 30, 2020
Dec. 31, 2019
Loss Contingencies [Line Items]      
Subsidiary, ownership interest, percentage 100.00%    
Claims related to loans in specific private-label securitization groups $ 8,500   $ 10,700
New purchase claims 89    
Claims resolved 2,400    
Time-barred repurchase claims resolved 168    
Private-Label Securitization Trustees      
Loss Contingencies [Line Items]      
Claims related to loans in specific private-label securitization groups 2,900   3,700
Merchant Servicing Joint Venture      
Loss Contingencies [Line Items]      
Equity method investment, ownership percentage   49.00%  
Merchant Processing Servicers, Sponsored Entities      
Loss Contingencies [Line Items]      
Transactions processed by sponsored entities 339,200    
Life Insurance Book Value Protection      
Loss Contingencies [Line Items]      
Notional amount of derivatives 7,100   7,300
Maximum potential exposure 1,100   1,100
FICC Repo Program      
Loss Contingencies [Line Items]      
Maximum potential exposure 22,500   9,300
Other Guarantee      
Loss Contingencies [Line Items]      
Maximum potential exposure 8,800   8,700
Representations and Warranties Obligations and Corporate Guarantees      
Loss Contingencies [Line Items]      
Loss contingency accrual $ 1,300   $ 1,800