Quarterly report pursuant to Section 13 or 15(d)

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

v2.4.0.8
Fair Value Disclosures - Quantitative Information About Level 3 Fair Value Measurements (Details) (USD $)
 6 Months Ended 12 Months Ended
Jun. 30, 2013
Dec. 31, 2012
Fair Value Inputs, Assets and Liabilities, Quantitative Information [Line Items]    
Derivative Assets $ 27,633,000,000 $ 24,851,000,000
Level 3 | Fair Value, Measurements, Recurring [Member]
    
Fair Value Inputs, Assets and Liabilities, Quantitative Information [Line Items]    
Loans, notes and mortgages 815,000,000 1,681,000,000
Other assets 267,000,000 1,534,000,000
Derivative Assets 5,592,000,000 [1] 5,677,000,000 [1]
Level 3 | Fair Value, Measurements, Recurring [Member] | Private equity investments and funds
    
Fair Value Inputs, Assets and Liabilities, Quantitative Information [Line Items]    
Other assets 288,000,000 287,000,000
Level 3 | Fair Value, Measurements, Recurring [Member] | Borrowings [Member] | Industry Standard Derivative Pricing [Member] | Structured liabilities
    
Fair Value Inputs, Assets and Liabilities, Quantitative Information [Line Items]    
Long-term borrowings 1,082,000,000 1,316,000,000
Level 3 | Fair Value, Measurements, Recurring [Member] | Borrowings [Member] | Weighted Average [Member] | Industry Standard Derivative Pricing [Member] | Structured liabilities
    
Fair Value Inputs [Abstract]    
Equity Correlation 0.63 [2]  
Long-dated Volatilities 24.00% [2]  
Level 3 | Fair Value, Measurements, Recurring [Member] | Borrowings [Member] | Minimum [Member] | Industry Standard Derivative Pricing [Member] | Structured liabilities
    
Fair Value Inputs [Abstract]    
Equity Correlation 0.30 [2] 0.30 [2]
Long-dated Volatilities 4.00% [2] 20.00% [2]
Level 3 | Fair Value, Measurements, Recurring [Member] | Borrowings [Member] | Maximum [Member] | Industry Standard Derivative Pricing [Member] | Structured liabilities
    
Fair Value Inputs [Abstract]    
Equity Correlation 1.00 [2] 0.97 [2]
Long-dated Volatilities 70.00% [2] 70.00% [2]
Level 3 | Fair Value, Measurements, Recurring [Member] | Loans and Securities [Member] | Discounted Cash Flow [Member] | Instruments backed by residential real estate assets
    
Fair Value Inputs, Assets and Liabilities, Quantitative Information [Line Items]    
Loans and Securities 1,075,000,000 1,608,000,000
Loans, notes and mortgages 641,000,000 1,231,000,000
Trading assets - Mortgages, mortgage-backed and asset-backed 434,000,000 377,000,000
Level 3 | Fair Value, Measurements, Recurring [Member] | Loans and Securities [Member] | Discounted Cash Flow [Member] | Instruments backed by commercial real estate assets
    
Fair Value Inputs, Assets and Liabilities, Quantitative Information [Line Items]    
Other assets   1,534,000,000
Level 3 | Fair Value, Measurements, Recurring [Member] | Loans and Securities [Member] | Discounted Cash Flow Market Comparables [Member] | Corporate loans, debt securities and other
    
Fair Value Inputs, Assets and Liabilities, Quantitative Information [Line Items]    
Loans and Securities 6,090,000,000 6,787,000,000
Loans, notes and mortgages 174,000,000 450,000,000
Trading assets - Mortgages, mortgage-backed and asset-backed 4,152,000,000 4,437,000,000
Trading Assets - Corporate Debt, Fair Value Disclosure 1,764,000,000 1,900,000,000
Level 3 | Fair Value, Measurements, Recurring [Member] | Loans and Securities [Member] | Discounted Cash Flow Market Comparables [Member] | Auction rate securities
    
Fair Value Inputs, Assets and Liabilities, Quantitative Information [Line Items]    
Trading assets - Municipals and money markets   1,295,000,000
Level 3 | Fair Value, Measurements, Recurring [Member] | Loans and Securities [Member] | Weighted Average [Member] | Discounted Cash Flow [Member] | Instruments backed by residential real estate assets
    
Fair Value Inputs [Abstract]    
Yield 8.00% 7.00%
Prepayment Speeds 7.00% 7.00%
Default Rates 2.00% 2.00%
Loss Severities 41.00% 41.00%
Level 3 | Fair Value, Measurements, Recurring [Member] | Loans and Securities [Member] | Weighted Average [Member] | Discounted Cash Flow [Member] | Instruments backed by commercial real estate assets
    
Fair Value Inputs [Abstract]    
Yield   5.00%
Loss Severities   88.00%
Level 3 | Fair Value, Measurements, Recurring [Member] | Loans and Securities [Member] | Weighted Average [Member] | Discounted Cash Flow Market Comparables [Member] | Corporate loans, debt securities and other
    
Fair Value Inputs [Abstract]    
Yield 7.00% 5.00%
Prepayment Speeds 20.00% 20.00%
Default Rates 4.00% 4.00%
Loss Severities 35.00% 35.00%
Earnings before Interest, Taxes, Depreciation, and Amortization Multiple 7.0 6
Level 3 | Fair Value, Measurements, Recurring [Member] | Loans and Securities [Member] | Weighted Average [Member] | Discounted Cash Flow Market Comparables [Member] | Auction rate securities
    
Fair Value Inputs [Abstract]    
Projected tender price/re-financing level   90.00%
Level 3 | Fair Value, Measurements, Recurring [Member] | Loans and Securities [Member] | Minimum [Member] | Discounted Cash Flow [Member] | Instruments backed by residential real estate assets
    
Fair Value Inputs [Abstract]    
Yield   4.00%
Prepayment Speeds   3.00%
Default Rates   1.00%
Loss Severities   35.00%
Level 3 | Fair Value, Measurements, Recurring [Member] | Loans and Securities [Member] | Minimum [Member] | Discounted Cash Flow [Member] | Instruments backed by commercial real estate assets
    
Fair Value Inputs [Abstract]    
Yield   5.00%
Loss Severities   51.00%
Level 3 | Fair Value, Measurements, Recurring [Member] | Loans and Securities [Member] | Minimum [Member] | Discounted Cash Flow Market Comparables [Member] | Instruments backed by residential real estate assets
    
Fair Value Inputs [Abstract]    
Yield 4.00%  
Prepayment Speeds 3.00%  
Default Rates 1.00%  
Loss Severities 35.00%  
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
    
Fair Value Inputs [Abstract]    
Yield 0.00% 0.00%
Prepayment Speeds 5.00% 5.00%
Default Rates 1.00% 1.00%
Loss Severities 25.00% 25.00%
Earnings before Interest, Taxes, Depreciation, and Amortization Multiple 0 2
Level 3 | Fair Value, Measurements, Recurring [Member] | Loans and Securities [Member] | Minimum [Member] | Discounted Cash Flow Market Comparables [Member] | Auction rate securities
    
Fair Value Inputs [Abstract]    
Projected tender price/re-financing level   50.00%
Level 3 | Fair Value, Measurements, Recurring [Member] | Loans and Securities [Member] | Maximum [Member] | Discounted Cash Flow [Member] | Instruments backed by residential real estate assets
    
Fair Value Inputs [Abstract]    
Yield   25.00%
Prepayment Speeds   10.00%
Default Rates   3.00%
Loss Severities   45.00%
Level 3 | Fair Value, Measurements, Recurring [Member] | Loans and Securities [Member] | Maximum [Member] | Discounted Cash Flow [Member] | Instruments backed by commercial real estate assets
    
Fair Value Inputs [Abstract]    
Yield   5.00%
Loss Severities   100.00%
Level 3 | Fair Value, Measurements, Recurring [Member] | Loans and Securities [Member] | Maximum [Member] | Discounted Cash Flow Market Comparables [Member] | Instruments backed by residential real estate assets
    
Fair Value Inputs [Abstract]    
Yield 25.00%  
Prepayment Speeds 10.00%  
Default Rates 3.00%  
Loss Severities 45.00%  
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
    
Fair Value Inputs [Abstract]    
Yield 35.00% 25.00%
Prepayment Speeds 40.00% 30.00%
Default Rates 4.00% 5.00%
Loss Severities 40.00% 40.00%
Earnings before Interest, Taxes, Depreciation, and Amortization Multiple 18 11
Level 3 | Fair Value, Measurements, Recurring [Member] | Loans and Securities [Member] | Maximum [Member] | Discounted Cash Flow Market Comparables [Member] | Auction rate securities
    
Fair Value Inputs [Abstract]    
Projected tender price/re-financing level   100.00%
Level 3 | Fair Value, Measurements, Recurring [Member] | Derivative Financial Instruments, Assets [Member]
    
Fair Value Inputs, Assets and Liabilities, Quantitative Information [Line Items]    
Derivative Asset, Fair Value, Net 1,675,000,000 1,544,000,000
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
    
Fair Value Inputs, Assets and Liabilities, Quantitative Information [Line Items]    
Derivative Asset, Fair Value, Net 1,399,000,000 1,632,000,000
Level 3 | Fair Value, Measurements, Recurring [Member] | Derivative Financial Instruments, Assets [Member] | Discounted Cash Flow [Member] | Commodity derivatives
    
Fair Value Inputs, Assets and Liabilities, Quantitative Information [Line Items]    
Derivative Asset, Fair Value, Net 5,000,000 (5,000,000)
Level 3 | Fair Value, Measurements, Recurring [Member] | Derivative Financial Instruments, Assets [Member] | Industry Standard Derivative Pricing [Member] | Equity derivatives
    
Fair Value Inputs, Assets and Liabilities, Quantitative Information [Line Items]    
Derivative Asset, Fair Value, Net (223,000,000) (814,000,000)
Level 3 | Fair Value, Measurements, Recurring [Member] | Derivative Financial Instruments, Assets [Member] | Industry Standard Derivative Pricing [Member] | Interest rate derivatives
    
Fair Value Inputs, Assets and Liabilities, Quantitative Information [Line Items]    
Derivative Asset, Fair Value, Net 494,000,000 731,000,000
Level 3 | Fair Value, Measurements, Recurring [Member] | Derivative Financial Instruments, Assets [Member] | Weighted Average [Member] | Discounted Cash Flow Hazard Rate Model Stochastic Recovery Correlation Model [Member] | Credit derivatives
    
Fair Value Inputs [Abstract]    
Yield 15.00%  
Fair Value Inputs Credit Spreads 173  
Prepayment Speeds 9.00%  
Default Rates 3.00%  
Loss Severities 35.00%  
Upfront Points 53  
Correlation 52.00%  
Spread to Index 208  
Level 3 | Fair Value, Measurements, Recurring [Member] | Derivative Financial Instruments, Assets [Member] | Weighted Average [Member] | Discounted Cash Flow [Member] | Commodity derivatives
    
Fair Value Inputs [Abstract]    
Correlation 79.00% [3]  
Long-term Natual Gas basis curve 7.000 [3]  
Volatilities 34.00% [3]  
Level 3 | Fair Value, Measurements, Recurring [Member] | Derivative Financial Instruments, Assets [Member] | Weighted Average [Member] | Industry Standard Derivative Pricing [Member] | Equity derivatives
    
Fair Value Inputs [Abstract]    
Equity Correlation 0.63 [3]  
Long-dated Volatilities 24.00% [3]  
Level 3 | Fair Value, Measurements, Recurring [Member] | Derivative Financial Instruments, Assets [Member] | Weighted Average [Member] | Industry Standard Derivative Pricing [Member] | Interest rate derivatives
    
Fair Value Inputs [Abstract]    
Correlation (IR/IR) 51.00% [3]  
Correlation (FX/IR) (12.00%) [3]  
Long-dated Inflation Rates 2.00% [3]  
Long-dated Inflation Volatilities 1.00% [3]  
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
    
Fair Value Inputs [Abstract]    
Yield 4.00% 2.00%
Fair Value Inputs Credit Spreads 56 58
Prepayment Speeds 3.00% 3.00%
Default Rates 1.00% 1.00%
Loss Severities 20.00% 25.00%
Upfront Points 0 25
Correlation 28.00% 19.00%
Spread to Index (1,745) (2,080)
Level 3 | Fair Value, Measurements, Recurring [Member] | Derivative Financial Instruments, Assets [Member] | Minimum [Member] | Discounted Cash Flow [Member] | Commodity derivatives
    
Fair Value Inputs [Abstract]    
Long-term Natual Gas basis curve   3.00
Level 3 | Fair Value, Measurements, Recurring [Member] | Derivative Financial Instruments, Assets [Member] | Minimum [Member] | Industry Standard Derivative Pricing [Member] | Equity derivatives
    
Fair Value Inputs [Abstract]    
Equity Correlation 0.30 [3] 0.30 [3]
Long-dated Volatilities 4.00% [3] 20.00% [3]
Level 3 | Fair Value, Measurements, Recurring [Member] | Derivative Financial Instruments, Assets [Member] | Minimum [Member] | Industry Standard Derivative Pricing [Member] | Interest rate derivatives
    
Fair Value Inputs [Abstract]    
Correlation (IR/IR) 24.00% [3] 15.00% [3]
Correlation (FX/IR) (65.00%) [3] (65.00%) [3]
Long-dated Inflation Rates 1.00% [3] 2.00% [3]
Long-dated Inflation Volatilities 0.00% [3] 0.00% [3]
Long-dated Volatilities (FX)   5.00% [3]
Long-dated Swap Rates   8.00% [3]
Level 3 | Fair Value, Measurements, Recurring [Member] | Derivative Financial Instruments, Assets [Member] | Minimum [Member] | Industry Standard Derivative Pricing Discounted Cash Flow [Member] | Commodity derivatives
    
Fair Value Inputs [Abstract]    
Correlation 47.00% [3]  
Long-term Natual Gas basis curve 3.000 [3]  
Volatilities 9.00% [3]  
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
    
Fair Value Inputs [Abstract]    
Yield 25.00% 25.00%
Fair Value Inputs Credit Spreads 184 615
Prepayment Speeds 20.00% 30.00%
Default Rates 4.00% 5.00%
Loss Severities 35.00% 40.00%
Upfront Points 100 99
Correlation 81.00% 75.00%
Spread to Index 1,852 1,972
Level 3 | Fair Value, Measurements, Recurring [Member] | Derivative Financial Instruments, Assets [Member] | Maximum [Member] | Discounted Cash Flow [Member] | Commodity derivatives
    
Fair Value Inputs [Abstract]    
Long-term Natual Gas basis curve   12.00
Level 3 | Fair Value, Measurements, Recurring [Member] | Derivative Financial Instruments, Assets [Member] | Maximum [Member] | Industry Standard Derivative Pricing [Member] | Equity derivatives
    
Fair Value Inputs [Abstract]    
Equity Correlation 1.00 [3] 0.97 [3]
Long-dated Volatilities 70.00% [3] 70.00% [3]
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 [Abstract]    
Correlation (IR/IR) 99.00% [3] 99.00% [3]
Correlation (FX/IR) 50.00% [3] 50.00% [3]
Long-dated Inflation Rates 3.00% [3] 3.00% [3]
Long-dated Inflation Volatilities 2.00% [3] 1.00% [3]
Long-dated Volatilities (FX)   36.00% [3]
Long-dated Swap Rates   10.00% [3]
Level 3 | Fair Value, Measurements, Recurring [Member] | Derivative Financial Instruments, Assets [Member] | Maximum [Member] | Industry Standard Derivative Pricing Discounted Cash Flow [Member] | Commodity derivatives
    
Fair Value Inputs [Abstract]    
Correlation 95.00% [3]  
Long-term Natual Gas basis curve $ 12.000 [3]  
Volatilities 301.00% [3]  
[1] See Note 6 for product level detail.
[2] Includes models such as Monte Carlo simulation and Black-Scholes.
[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.