v2.4.0.6
Significant Accounting Policies (Details) (USD $)
 12 Months Ended 1 Months Ended 12 Months Ended 0 Months Ended 12 Months Ended
Dec. 31, 2012
Dec. 31, 2011
Dec. 31, 2010
Aug. 31, 2010
CIC
Dec. 31, 2007
CIC
Dec. 31, 2012
Wealth Management JV
Dec. 31, 2010
Retail Asset Management
Jun. 30, 2011
Series B Preferred Stock
Dec. 31, 2012
Series B Preferred Stock
Dec. 31, 2012
Buildings
Y
Dec. 31, 2012
Furniture and Fixtures
Y
Dec. 31, 2012
Computer and Communications Equipment
Y
Dec. 31, 2012
Power Plants
Y
Dec. 31, 2012
Tugs and Barges
Y
Dec. 31, 2012
Terminals, pipelines and equipment
Y
Dec. 31, 2012
Software Costs
Y
Dec. 31, 2012
Building Structural Improvements
Y
Dec. 31, 2012
Other Improvements
Y
Revenue Recognition                                    
Value of performance based fee revenue at risk $ 205,000,000 $ 179,000,000                                
Consolidated Statements of Cash Flows                                    
Significant non-cash activities, assets disposed of in connection with business dispositions 2,600,000,000                                  
Significant non-cash activities, liabilities disposed of in connection with business dispositions 1,000,000,000                                  
Preferred stock face value 1,508,000,000 1,508,000,000           7,800,000,000                    
Preferred stock carrying value 1,508,000,000 1,508,000,000           8,100,000,000                    
Preferred stock dividend rate               10.00% 10.00%                  
Adjustment to preferred and common stock conversion ratio   (1,700,000,000)                                
Significant non-cash activities, assets acquired in connection with business acquisitions     500,000,000                              
Significant non-cash activities, liabilities assumed in connection with business acquisitions     200,000,000                              
Nets assets related to delayed contribution in connection with the consummation of business combination           1,100,000,000                        
Significant non-cash activities, equity securities received             600,000,000                      
Increase in cash from operating activities due to reclassfication from other activities   9,200,000,000 300,000,000                              
Premises, Equipment and Software Costs                                    
Estimated useful lives                   39 7   15 15     25 15
Estimated useful lives, minimum                       3     3 3    
Estimated useful lives, maximum                       9     25 5    
Earnings Per Share                                    
Redemption of CIC equity units and issuances of common stock     $ 5,579,000,000   $ 5,579,000,000                          
Redemption of equity units and issuances of common stock (in shares)       116,062,911