Quarterly report pursuant to Section 13 or 15(d)

Commitments and Contingencies - Other Guarantees (Details)

v3.19.3
Commitments and Contingencies - Other Guarantees (Details) - USD ($)
$ in Millions
3 Months Ended 9 Months Ended
Sep. 30, 2019
Sep. 30, 2018
Sep. 30, 2019
Sep. 30, 2018
Dec. 31, 2018
Dec. 31, 2009
Loss Contingencies [Line Items]            
Equity method investment, pre-tax impairment charge     $ 2,072 $ 0    
Merchant Servicing Joint Venture            
Loss Contingencies [Line Items]            
Equity method investment, ownership percentage           49.00%
Carrying value of investment $ 652   652   $ 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 229,400 $ 220,000 670,600 646,900    
Losses as result of cardholder disputed transactions 6 $ 6 17 $ 23    
Life Insurance Book Value Protection            
Loss Contingencies [Line Items]            
Notional amount of derivatives 7,200   7,200   9,800  
Maximum potential exposure 1,100   1,100   1,500  
Merchant Services | Merchant Processing Servicers, Sponsored Entities            
Loss Contingencies [Line Items]            
Maximum potential exposure 375,700   375,700   348,100  
Other Guarantee            
Loss Contingencies [Line Items]            
Maximum potential exposure 8,100   $ 8,100   $ 5,900  
Indemnification Agreement            
Loss Contingencies [Line Items]            
Loss contingency, loss in period $ 135