v2.4.0.8
Reportable Operating Segments and Geographic Operations (Details) (USD $)
In Millions, unless otherwise specified
 3 Months Ended 9 Months Ended
Sep. 30, 2013
Sep. 30, 2012
Sep. 30, 2013
Sep. 30, 2012
Segment Reporting Information [Line Items]        
Non-interest revenues $ 7,018 $ 6,681 $ 20,699 $ 19,979
Interest income 1,767 1,739 5,223 5,117
Interest expense 484 558 1,495 1,682
Total revenues, net of interest expense 8,301 7,862 24,427 23,414
Net income 1,366 1,250 4,051 3,845
U S Card Services [Member]
        
Segment Reporting Information [Line Items]        
Non-interest revenues 3,050 2,887 8,991 8,566
Interest income 1,408 1,362 4,148 3,978
Interest expense 172 194 532 568
Total revenues, net of interest expense 4,286 4,055 12,607 11,976
Net income 782 699 2,329 2,169
International Card Services [Member]
        
Segment Reporting Information [Line Items]        
Non-interest revenues 1,161 1,126 3,415 3,351
Interest income 281 289 830 858
Interest expense 86 102 273 300
Total revenues, net of interest expense 1,356 1,313 3,972 3,909
Net income 142 164 528 539
Global Commercial Services [Member]
        
Segment Reporting Information [Line Items]        
Non-interest revenues 1,277 1,218 3,787 3,718
Interest income 3 3 9 8
Interest expense 59 65 181 192
Total revenues, net of interest expense 1,221 1,156 3,615 3,534
Net income 261 183 678 579
Global Network And Merchant Services [Member]
        
Segment Reporting Information [Line Items]        
Non-interest revenues 1,309 1,238 3,856 3,683
Interest income 8 7 23 16
Interest expense (62) (65) (187) (182)
Total revenues, net of interest expense 1,379 1,310 4,066 3,881
Net income 391 360 1,176 1,089
Corporate and Other [Member]
        
Segment Reporting Information [Line Items]        
Non-interest revenues 221 212 650 661
Interest income 67 78 213 257
Interest expense 229 262 696 804
Total revenues, net of interest expense 59 28 167 114
Net income $ (210) $ (156) $ (660) $ (531)