Annual report pursuant to Section 13 and 15(d)

Commitments and Contingencies - Other Guarantees (Details)

v3.19.3.a.u2
Commitments and Contingencies - Other Guarantees (Details) - USD ($)
$ in Millions
12 Months Ended
Dec. 31, 2019
Dec. 31, 2018
Dec. 31, 2017
Dec. 31, 2009
Loss Contingencies [Line Items]        
Equity method investment, pre-tax impairment charge $ 2,072 $ 0 $ 0  
Merchant Servicing Joint Venture        
Loss Contingencies [Line Items]        
Equity method investment, ownership percentage       49.00%
Carrying value of investment 640 2,800    
Equity method investment, pre-tax impairment charge 2,100      
Merchant Processing Servicers, Sponsored Entities        
Loss Contingencies [Line Items]        
Transactions processed by sponsored entities 916,600 874,300    
Losses as result of cardholder disputed transactions 24 31    
Life Insurance Book Value Protection        
Loss Contingencies [Line Items]        
Notional amount of derivatives 7,300 9,800    
Maximum potential exposure 1,100 1,500    
Merchant Services | Merchant Processing Servicers, Sponsored Entities        
Loss Contingencies [Line Items]        
Maximum potential exposure 384,200 348,100    
Other Guarantee        
Loss Contingencies [Line Items]        
Maximum potential exposure 8,700 $ 5,900    
Indemnification Agreement        
Loss Contingencies [Line Items]        
Loss contingency, loss in period $ 210