Quarterly report pursuant to Section 13 or 15(d)

Business Segment Information - Reconciliation of Revenue and Net Income (Details)

v2.4.0.6
Business Segment Information - Reconciliation of Revenue and Net Income (Details) (USD $)
In Millions, unless otherwise specified
 3 Months Ended 6 Months Ended
Jun. 30, 2012
Jun. 30, 2011
Jun. 30, 2012
Jun. 30, 2011
Segment Reporting Revenue And Net Income Loss Reconciling Item [Line Items]        
Revenues $ 21,968 $ 13,236 $ 44,246 $ 40,113
Net income (loss) 2,463 (8,826) 3,116 (6,777)
Operating Segments [Member]
        
Segment Reporting Revenue And Net Income Loss Reconciling Item [Line Items]        
Segments' total revenue, net of interest expense (FTE basis) 21,814 10,933 44,913 35,931
Net income (loss) 2,799 (8,659) 6,044 (5,497)
ALM activities [Member]
        
Segment Reporting Revenue And Net Income Loss Reconciling Item [Line Items]        
Revenues 477 1,144 (692) 908
Net income (loss) (229) (540) (2,053) (1,954)
Equity investment income [Member]
        
Segment Reporting Revenue And Net Income Loss Reconciling Item [Line Items]        
Revenues (63) 1,139 354 2,554
Net income (loss) (40) 718 223 1,609
Liquidating businesses [Member]
        
Segment Reporting Revenue And Net Income Loss Reconciling Item [Line Items]        
Revenues 539 746 902 1,765
Net income (loss) 153 68 211 175
FTE basis adjustment [Member]
        
Segment Reporting Revenue And Net Income Loss Reconciling Item [Line Items]        
Revenues (234) (247) (441) (465)
Merger and restructuring charges [Member]
        
Segment Reporting Revenue And Net Income Loss Reconciling Item [Line Items]        
Net income (loss)    (101) 0 (228)
Other [Member]
        
Segment Reporting Revenue And Net Income Loss Reconciling Item [Line Items]        
Revenues (565) (479) (790) (580)
Net income (loss) $ (220) $ (312) $ (1,309) $ (882)