Quarterly report pursuant to Section 13 or 15(d)

Merger and Restructuring Activity (Details Textuals)

v2.3.0.15
Merger and Restructuring Activity (Details Textuals) (USD $)
In Millions
3 Months Ended 9 Months Ended
Sep. 30, 2011
Sep. 30, 2010
Sep. 30, 2011
Sep. 30, 2010
Merger and Restructuring Activity (Textuals) [Abstract]        
Merger And Restructuring Charges $ 176 $ 421 $ 537 $ 1,450
Merrill Lynch [Member]
       
Merger and Restructuring Activity (Textuals) [Abstract]        
Merger And Restructuring Charges   420   1,253
Series Of Individually Immaterial Business Acquisitions From Prior Periods [Member]
       
Merger and Restructuring Activity (Textuals) [Abstract]        
Merger And Restructuring Charges   $ 1   $ 197