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 $)
 6 Months Ended 6 Months Ended 6 Months Ended
Jun. 30, 2012
Dec. 31, 2011
Jun. 30, 2012
Level 3
Fair Value, Measurements, Recurring [Member]
Dec. 31, 2011
Level 3
Fair Value, Measurements, Recurring [Member]
Jun. 30, 2012
Level 3
Fair Value, Measurements, Recurring [Member]
Private equity investments and funds
Jun. 30, 2012
Level 3
Fair Value, Measurements, Recurring [Member]
Borrowings [Member]
Industry Standard Derivative Pricing [Member]
Structured liabilities
Jun. 30, 2012
Level 3
Fair Value, Measurements, Recurring [Member]
Borrowings [Member]
Minimum [Member]
Industry Standard Derivative Pricing [Member]
Structured liabilities
Jun. 30, 2012
Level 3
Fair Value, Measurements, Recurring [Member]
Borrowings [Member]
Maximum [Member]
Industry Standard Derivative Pricing [Member]
Structured liabilities
Jun. 30, 2012
Level 3
Fair Value, Measurements, Recurring [Member]
Loans and Securities [Member]
Auction rate securities
Jun. 30, 2012
Level 3
Fair Value, Measurements, Recurring [Member]
Loans and Securities [Member]
Discounted Cash Flow [Member]
Instruments backed by residential real estate assets
Jun. 30, 2012
Level 3
Fair Value, Measurements, Recurring [Member]
Loans and Securities [Member]
Discounted Cash Flow [Member]
Instruments backed by commercial real estate assets
Jun. 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
Jun. 30, 2012
Level 3
Fair Value, Measurements, Recurring [Member]
Loans and Securities [Member]
Discounted Cash Flow Market Comparables [Member]
Auction rate securities
Jun. 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
Jun. 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
Jun. 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
Jun. 30, 2012
Level 3
Fair Value, Measurements, Recurring [Member]
Loans and Securities [Member]
Minimum [Member]
Discounted Cash Flow Market Comparables [Member]
Auction rate securities
Jun. 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
Jun. 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
Jun. 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
Jun. 30, 2012
Level 3
Fair Value, Measurements, Recurring [Member]
Loans and Securities [Member]
Maximum [Member]
Discounted Cash Flow Market Comparables [Member]
Auction rate securities
Jun. 30, 2012
Level 3
Fair Value, Measurements, Recurring [Member]
Derivative Financial Instruments, Assets [Member]
Jun. 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
Jun. 30, 2012
Level 3
Fair Value, Measurements, Recurring [Member]
Derivative Financial Instruments, Assets [Member]
Discounted Cash Flow [Member]
Commodity derivatives
Jun. 30, 2012
Level 3
Fair Value, Measurements, Recurring [Member]
Derivative Financial Instruments, Assets [Member]
Industry Standard Derivative Pricing [Member]
Equity derivatives
Jun. 30, 2012
Level 3
Fair Value, Measurements, Recurring [Member]
Derivative Financial Instruments, Assets [Member]
Industry Standard Derivative Pricing [Member]
Interest rate derivatives
Jun. 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
Jun. 30, 2012
Level 3
Fair Value, Measurements, Recurring [Member]
Derivative Financial Instruments, Assets [Member]
Minimum [Member]
Discounted Cash Flow [Member]
Commodity derivatives
Jun. 30, 2012
Level 3
Fair Value, Measurements, Recurring [Member]
Derivative Financial Instruments, Assets [Member]
Minimum [Member]
Industry Standard Derivative Pricing [Member]
Equity derivatives
Jun. 30, 2012
Level 3
Fair Value, Measurements, Recurring [Member]
Derivative Financial Instruments, Assets [Member]
Minimum [Member]
Industry Standard Derivative Pricing [Member]
Interest rate derivatives
Jun. 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
Jun. 30, 2012
Level 3
Fair Value, Measurements, Recurring [Member]
Derivative Financial Instruments, Assets [Member]
Maximum [Member]
Discounted Cash Flow [Member]
Commodity derivatives
Jun. 30, 2012
Level 3
Fair Value, Measurements, Recurring [Member]
Derivative Financial Instruments, Assets [Member]
Maximum [Member]
Industry Standard Derivative Pricing [Member]
Equity derivatives
Jun. 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                    $ 1,585,000,000 $ 1,930,000,000 $ 6,208,000,000                                            
Loans, notes and mortgages     1,776,000,000 1,726,000,000           958,000,000 368,000,000 450,000,000                                            
Other assets     1,263,000,000 1,349,000,000 333,000,000           1,263,000,000                                              
Trading assets - Mortgages, mortgage-backed and asset-backed                   627,000,000 299,000,000 3,652,000,000                                            
Trading Assets - Corporate Debt, Fair Value Disclosure                       2,106,000,000                                            
Trading assets - Municipals and money markets                         1,730,000,000                                          
Long-term borrowings           1,469,000,000 [1]                                                        
Derivative Assets 28,072,000,000 35,013,000,000 8,001,000,000 [2] 10,110,000,000 [2]                                   3,414,000,000 3,116,000,000 [3] (1,000,000) (351,000,000) [4] 650,000,000 [4]                
Fair Value Inputs [Abstract]                                                                    
Yield                           1.00% 1.00% 0.00%   25.00% 10.00% 20.00%             0.00% [3]       25.00% [3]      
Fair Value Inputs Credit Spreads                                                     100 [3]       500 [3]      
Prepayment Speeds                           3.00%   5.00%   10.00%   25.00%             0.00% [3]       25.00% [3]      
Default Rates                           1.00%   1.00%   3.00%   5.00%             0.00% [3]       5.00% [3]      
Loss Severities                           35.00% 33.00% 25.00%   45.00% 97.00% 40.00%             0.00% [3]       70.00% [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 [4]       0.97 [4]  
Long-dated Volatilities             20.00% [1] 70.00% [1]                                         20.00% [4]       70.00% [4]  
Upfront Points                                                     53 [3]       99 [3]      
Correlation                                                     30.00% [3]       80.00% [3]      
Spread to Index                                                     (2,000) [3]       2,000 [3]      
Long-term Natual Gas basis curve                                                       $ (0.530)       $ 0.302    
Correlation (IR/IR)                                                           15.00% [4]       100.00% [4]
Correlation (FX/IR)                                                           (65.00%) [4]       50.00% [4]
Long-dated Inflation Rates                                                           1.50% [4]       2.60% [4]
Long-dated Inflation Volatilities                                                           0.30% [4]       0.90% [4]
Long-dated Volatilities (FX)                                                           7.00% [4]       38.00% [4]
Long-dated Swap Rates                                                           9.50% [4]       10.30% [4]
[1] Includes models such as Monte Carlo simulation and Black-Scholes.
[2] Refer to Note 6 for product level detail.
[3] The hazard rate model is an industry standard model for valuing CDS for single names or indices.
[4] Includes models such as Monte Carlo simulation, Black-Scholes and other methods that model the joint dynamics of interest, inflation and foreign exchange rates.