v2.4.0.6
Goodwill and Net Intangible Assets (Changes in Carrying Amount of Intangible Assets) (Details) (USD $)
In Millions, unless otherwise specified
 6 Months Ended
Jun. 30, 2012
Apr. 02, 2012
Dec. 31, 2011
Amortizable net intangible assets, beginning balance $ 3,872    
Foreign currency translation adjustments and other (5)    
Amortization expense (168)    
Impairment losses (4) [1]    
Intangible assets acquired during the year 4    
Intangible assets disposed of during the period 0    
Amortizable net intangible assets, ending balance 3,699    
Mortgage servicing rights 8 84 133
Indefinite-lived intangible assets 280   280
Net intangible assets 3,987   4,285
Institutional Securities
      
Amortizable net intangible assets, beginning balance 229    
Foreign currency translation adjustments and other (6)    
Amortization expense (8)    
Impairment losses (4) [1]    
Intangible assets acquired during the year 4    
Intangible assets disposed of during the period 0    
Amortizable net intangible assets, ending balance 215    
Mortgage servicing rights 0   122
Indefinite-lived intangible assets 0   0
Net intangible assets 215   351
Global Wealth Management Group [Member]
      
Amortizable net intangible assets, beginning balance 3,641    
Foreign currency translation adjustments and other 1    
Amortization expense (160)    
Impairment losses 0 [1]    
Intangible assets acquired during the year 0    
Intangible assets disposed of during the period 0    
Amortizable net intangible assets, ending balance 3,482    
Mortgage servicing rights 8   11
Indefinite-lived intangible assets 280   280
Net intangible assets 3,770   3,932
Asset Management
      
Amortizable net intangible assets, beginning balance 2    
Foreign currency translation adjustments and other 0    
Amortization expense 0    
Impairment losses 0 [1]    
Intangible assets acquired during the year 0    
Intangible assets disposed of during the period 0    
Amortizable net intangible assets, ending balance 2    
Mortgage servicing rights 0   0
Indefinite-lived intangible assets 0   0
Net intangible assets $ 2   $ 2
[1]     Impairment losses are recorded within Other expenses.