Quarterly report pursuant to Section 13 or 15(d)

Goodwill and Intangible Assets - Goodwill (Details)

v2.4.0.8
Goodwill and Intangible Assets - Goodwill (Details) (USD $)
In Millions, unless otherwise specified
Jun. 30, 2013
Dec. 31, 2012
Goodwill [Abstract]    
Total Goodwill $ 69,930 $ 69,976
Dealer Financial Services [Member]
   
Goodwill [Abstract]    
Total Goodwill   1,700
International Wealth Management Businesses [Member]
   
Goodwill [Abstract]    
Total Goodwill   230
Consumer & Business Banking Segment [Member]
   
Goodwill [Abstract]    
Total Goodwill 31,681 31,681
Global Banking Segment [Member]
   
Goodwill [Abstract]    
Total Goodwill 22,377 22,377
Global Markets [Member]
   
Goodwill [Abstract]    
Total Goodwill 5,181 5,181
Global Wealth & Investment Management [Member]
   
Goodwill [Abstract]    
Total Goodwill 9,698 9,698
All Other [Member]
   
Goodwill [Abstract]    
Total Goodwill $ 993 $ 1,039