Annual report pursuant to Section 13 and 15(d)

Goodwill and Intangible Assets - Intangible Assets (Details)

v3.6.0.2
Goodwill and Intangible Assets - Intangible Assets (Details) - USD ($)
$ in Millions
Dec. 31, 2016
Dec. 31, 2015
Intangible Assets [Abstract]    
Gross Carrying Value $ 14,553  
Accumulated Amortization 11,564  
Net Carrying Value 2,989  
Gross Carrying Value   $ 14,855
Accumulated Amortization   11,087
Net Carrying Value 2,922 3,768
International Consumer Credit Card Business | Disposal Group, Held-for-sale, Not Discontinued Operations    
Intangible Assets [Abstract]    
Disposal group, intangible assets 67  
Trade Names    
Intangible Assets [Abstract]    
Intangible assets, net (excluding goodwill) 1,600 1,600
Purchased credit card relationships    
Intangible Assets [Abstract]    
Gross Carrying Value 6,830  
Accumulated Amortization 6,243  
Net Carrying Value 587  
Gross Carrying Value   7,006
Accumulated Amortization   6,111
Net Carrying Value   895
Core deposit intangibles    
Intangible Assets [Abstract]    
Gross Carrying Value 3,836  
Accumulated Amortization 2,046  
Net Carrying Value 1,790  
Gross Carrying Value   3,922
Accumulated Amortization   1,986
Net Carrying Value   1,936
Customer relationships    
Intangible Assets [Abstract]    
Gross Carrying Value 3,887  
Accumulated Amortization 3,275  
Net Carrying Value $ 612  
Gross Carrying Value   3,927
Accumulated Amortization   2,990
Net Carrying Value   $ 937