Quarterly report pursuant to Section 13 or 15(d)

Commitments and Contingencies - Other Guarantees (Details)

v3.19.1
Commitments and Contingencies - Other Guarantees (Details) - USD ($)
$ in Millions
 3 Months Ended
Mar. 31, 2019
Mar. 31, 2018
Dec. 31, 2018
Dec. 31, 2009
Merchant Servicing Joint Venture        
Loss Contingencies [Line Items]        
Carrying value of investment $ 2,800     $ 4,700
Merchant Processing Servicers, Sponsored Entities        
Loss Contingencies [Line Items]        
Transactions processed and settled by sponsored entities 205,600 $ 200,700    
Losses as result of cardholder disputed transactions 4 $ 8    
Life Insurance Book Value Protection        
Loss Contingencies [Line Items]        
Notional amount of derivatives 9,100   $ 9,800  
Maximum potential exposure 1,400   1,500  
Merchant Services | Merchant Processing Servicers, Sponsored Entities        
Loss Contingencies [Line Items]        
Maximum potential exposure 346,600   348,100  
Other Guarantee        
Loss Contingencies [Line Items]        
Maximum potential exposure $ 6,100   $ 5,900