Quarterly report pursuant to Section 13 or 15(d)

Fair Value Disclosures - Quantitative Information About Level 3 Fair Value Measurements (Details)

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Fair Value Disclosures - Quantitative Information About Level 3 Fair Value Measurements (Details) (USD $)
 9 Months Ended 9 Months Ended 9 Months Ended
Sep. 30, 2012
Dec. 31, 2011
Sep. 30, 2012
Level 3
Fair Value, Measurements, Recurring [Member]
Dec. 31, 2011
Level 3
Fair Value, Measurements, Recurring [Member]
Sep. 30, 2012
Level 3
Fair Value, Measurements, Recurring [Member]
Private equity investments and funds
Sep. 30, 2012
Level 3
Fair Value, Measurements, Recurring [Member]
Borrowings [Member]
Industry Standard Derivative Pricing [Member]
Structured liabilities
Sep. 30, 2012
Level 3
Fair Value, Measurements, Recurring [Member]
Borrowings [Member]
Minimum [Member]
Industry Standard Derivative Pricing [Member]
Structured liabilities
Sep. 30, 2012
Level 3
Fair Value, Measurements, Recurring [Member]
Borrowings [Member]
Maximum [Member]
Industry Standard Derivative Pricing [Member]
Structured liabilities
Sep. 30, 2012
Level 3
Fair Value, Measurements, Recurring [Member]
Loans and Securities [Member]
Auction rate securities
Sep. 30, 2012
Level 3
Fair Value, Measurements, Recurring [Member]
Loans and Securities [Member]
Discounted Cash Flow [Member]
Instruments backed by residential real estate assets
Sep. 30, 2012
Level 3
Fair Value, Measurements, Recurring [Member]
Loans and Securities [Member]
Discounted Cash Flow [Member]
Instruments backed by commercial real estate assets
Sep. 30, 2012
Level 3
Fair Value, Measurements, Recurring [Member]
Loans and Securities [Member]
Discounted Cash Flow Market Comparables [Member]
Corporate loans, debt securities and other
Sep. 30, 2012
Level 3
Fair Value, Measurements, Recurring [Member]
Loans and Securities [Member]
Discounted Cash Flow Market Comparables [Member]
Auction rate securities
Sep. 30, 2012
Level 3
Fair Value, Measurements, Recurring [Member]
Loans and Securities [Member]
Minimum [Member]
Discounted Cash Flow [Member]
Instruments backed by residential real estate assets
Sep. 30, 2012
Level 3
Fair Value, Measurements, Recurring [Member]
Loans and Securities [Member]
Minimum [Member]
Discounted Cash Flow [Member]
Instruments backed by commercial real estate assets
Sep. 30, 2012
Level 3
Fair Value, Measurements, Recurring [Member]
Loans and Securities [Member]
Minimum [Member]
Discounted Cash Flow Market Comparables [Member]
Corporate loans, debt securities and other
Sep. 30, 2012
Level 3
Fair Value, Measurements, Recurring [Member]
Loans and Securities [Member]
Minimum [Member]
Discounted Cash Flow Market Comparables [Member]
Auction rate securities
Sep. 30, 2012
Level 3
Fair Value, Measurements, Recurring [Member]
Loans and Securities [Member]
Maximum [Member]
Discounted Cash Flow [Member]
Instruments backed by residential real estate assets
Sep. 30, 2012
Level 3
Fair Value, Measurements, Recurring [Member]
Loans and Securities [Member]
Maximum [Member]
Discounted Cash Flow [Member]
Instruments backed by commercial real estate assets
Sep. 30, 2012
Level 3
Fair Value, Measurements, Recurring [Member]
Loans and Securities [Member]
Maximum [Member]
Discounted Cash Flow Market Comparables [Member]
Corporate loans, debt securities and other
Sep. 30, 2012
Level 3
Fair Value, Measurements, Recurring [Member]
Loans and Securities [Member]
Maximum [Member]
Discounted Cash Flow Market Comparables [Member]
Auction rate securities
Sep. 30, 2012
Level 3
Fair Value, Measurements, Recurring [Member]
Derivative Financial Instruments, Assets [Member]
Sep. 30, 2012
Level 3
Fair Value, Measurements, Recurring [Member]
Derivative Financial Instruments, Assets [Member]
Discounted Cash Flow Hazard Rate Model Stochastic Recovery Correlation Model [Member]
Credit derivatives
Sep. 30, 2012
Level 3
Fair Value, Measurements, Recurring [Member]
Derivative Financial Instruments, Assets [Member]
Discounted Cash Flow [Member]
Commodity derivatives
Sep. 30, 2012
Level 3
Fair Value, Measurements, Recurring [Member]
Derivative Financial Instruments, Assets [Member]
Industry Standard Derivative Pricing [Member]
Equity derivatives
Sep. 30, 2012
Level 3
Fair Value, Measurements, Recurring [Member]
Derivative Financial Instruments, Assets [Member]
Industry Standard Derivative Pricing [Member]
Interest rate derivatives
Sep. 30, 2012
Level 3
Fair Value, Measurements, Recurring [Member]
Derivative Financial Instruments, Assets [Member]
Minimum [Member]
Discounted Cash Flow Hazard Rate Model Stochastic Recovery Correlation Model [Member]
Credit derivatives
Sep. 30, 2012
Level 3
Fair Value, Measurements, Recurring [Member]
Derivative Financial Instruments, Assets [Member]
Minimum [Member]
Discounted Cash Flow [Member]
Commodity derivatives
Sep. 30, 2012
Level 3
Fair Value, Measurements, Recurring [Member]
Derivative Financial Instruments, Assets [Member]
Minimum [Member]
Industry Standard Derivative Pricing [Member]
Equity derivatives
Sep. 30, 2012
Level 3
Fair Value, Measurements, Recurring [Member]
Derivative Financial Instruments, Assets [Member]
Minimum [Member]
Industry Standard Derivative Pricing [Member]
Interest rate derivatives
Sep. 30, 2012
Level 3
Fair Value, Measurements, Recurring [Member]
Derivative Financial Instruments, Assets [Member]
Maximum [Member]
Discounted Cash Flow Hazard Rate Model Stochastic Recovery Correlation Model [Member]
Credit derivatives
Sep. 30, 2012
Level 3
Fair Value, Measurements, Recurring [Member]
Derivative Financial Instruments, Assets [Member]
Maximum [Member]
Discounted Cash Flow [Member]
Commodity derivatives
Sep. 30, 2012
Level 3
Fair Value, Measurements, Recurring [Member]
Derivative Financial Instruments, Assets [Member]
Maximum [Member]
Industry Standard Derivative Pricing [Member]
Equity derivatives
Sep. 30, 2012
Level 3
Fair Value, Measurements, Recurring [Member]
Derivative Financial Instruments, Assets [Member]
Maximum [Member]
Industry Standard Derivative Pricing [Member]
Interest rate derivatives
Fair Value Inputs, Assets and Liabilities, Quantitative Information [Line Items]                                                                    
Loans and Securities                    $ 1,699,000,000 $ 1,723,000,000 $ 6,260,000,000                                            
Loans, notes and mortgages     1,679,000,000 1,726,000,000           1,015,000,000 214,000,000 450,000,000                                            
Other assets     1,263,000,000 1,349,000,000 354,000,000           1,263,000,000                                              
Trading assets - Mortgages, mortgage-backed and asset-backed                   684,000,000 246,000,000 3,808,000,000                                            
Trading Assets - Corporate Debt, Fair Value Disclosure                       2,002,000,000                                            
Trading assets - Municipals and money markets                         1,510,000,000                                          
Long-term borrowings           1,455,000,000 [1]                                                        
Derivative Assets 26,621,000,000 35,013,000,000 6,875,000,000 [2] 10,110,000,000 [2]                                   2,446,000,000 2,655,000,000 (1,000,000) (723,000,000) 515,000,000                
Fair Value Inputs [Abstract]                                                                    
Yield                           5.00% 5.00% 0.00%   25.00% 7.00% 20.00%             2.00% [3]       25.00% [3]      
Fair Value Inputs Credit Spreads                                                     71 [3]       600 [3]      
Prepayment Speeds                           3.00%   5.00%   10.00%   25.00%             5.00% [3]       25.00% [3]      
Default Rates                           1.00%   1.00%   3.00%   5.00%             1.00% [3]       5.00% [3]      
Loss Severities                           35.00% 31.00% 25.00%   45.00% 100.00% 40.00%             25.00% [3]       40.00% [3]      
Earnings before Interest, Taxes, Depreciation, and Amortization Multiple                               3       7                            
Projected tender price/re-financing level                                 50.00%       100.00%                          
Equity Correlation             30 [1] 97 [1]                                         0.30       0.97  
Long-dated Volatilities             20.00% [1] 70.00% [1]                                         20.00%       70.00%  
Upfront Points                                                     30 [3]       99 [3]      
Correlation                                                     30.00% [3]       80.00% [3]      
Spread to Index                                                     (1,874) [3]       2,708 [3]      
Long-term Natual Gas basis curve                                                       $ (0.270)       $ 0.314    
Correlation (IR/IR)                                                           15.00%       100.00%
Correlation (FX/IR)                                                           (65.00%)       50.00%
Long-dated Inflation Rates                                                           1.80%       2.90%
Long-dated Inflation Volatilities                                                           0.20%       1.30%
Long-dated Volatilities (FX)                                                           5.00%       36.00%
Long-dated Swap Rates                                                           3.00%       10.00%
[1] Includes models such as Monte Carlo simulation and Black-Scholes.
[2] Refer to Note 6 for product level detail.
[3] Includes models such as Monte Carlo simulation, Black-Scholes and other methods that model the joint dynamics of interest, inflation and foreign exchange rates.