Quarterly report pursuant to Section 13 or 15(d)

Fair Value Disclosures - Gains and Losses (Details)

v2.4.0.8
Fair Value Disclosures - Gains and Losses (Details) (USD $)
In Millions, unless otherwise specified
 3 Months Ended 6 Months Ended
Jun. 30, 2013
Jun. 30, 2012
Jun. 30, 2013
Jun. 30, 2012
Fair Value Assets and Liabilities Measured on Recurring Basis Unobservable Input Reconciliation [Line Items]        
Principal Transactions, assets   $ 0   $ 0
Other Revenue, assets   (39)   (86)
Total, assets   (39)   (86)
Total trading liabilities, excluding derivative contracts
        
Fair Value Assets and Liabilities Measured on Recurring Basis Unobservable Input Reconciliation [Line Items]        
Principal Transactions, liabilities 2 3 1 1
Other Revenue, liabilities 0 0 0 0
Total, liabilities 2 3 1 1
Corporate debt
        
Fair Value Assets and Liabilities Measured on Recurring Basis Unobservable Input Reconciliation [Line Items]        
Principal Transactions, liabilities 2   1  
Other Revenue, liabilities 0   0  
Total, liabilities 2   1  
Preferred stock
        
Fair Value Assets and Liabilities Measured on Recurring Basis Unobservable Input Reconciliation [Line Items]        
Principal Transactions, liabilities   0   (2)
Other Revenue, liabilities   0   0
Total, liabilities   0   (2)
Municipals, money markets and other
        
Fair Value Assets and Liabilities Measured on Recurring Basis Unobservable Input Reconciliation [Line Items]        
Principal Transactions, liabilities   3   3
Other Revenue, liabilities   0   0
Total, liabilities   3   3
Other payables - interest and other
        
Fair Value Assets and Liabilities Measured on Recurring Basis Unobservable Input Reconciliation [Line Items]        
Principal Transactions, liabilities   0   0
Other Revenue, liabilities   1   0
Total, liabilities   1   0
Long-term borrowings
        
Fair Value Assets and Liabilities Measured on Recurring Basis Unobservable Input Reconciliation [Line Items]        
Principal Transactions, liabilities 58 82 55 (12)
Other Revenue, liabilities (5) 9 (9) 0
Total, liabilities 53 91 46 (12)
Trading account assets, excluding derivative contracts
        
Fair Value Assets and Liabilities Measured on Recurring Basis Unobservable Input Reconciliation [Line Items]        
Principal Transactions, assets (30) (108) 151 (4)
Other Revenue, assets 0 0 0 0
Total, assets (30) (108) 151 (4)
Equities
        
Fair Value Assets and Liabilities Measured on Recurring Basis Unobservable Input Reconciliation [Line Items]        
Principal Transactions, assets 10 (6) (13) 1
Other Revenue, assets 0 0 0 0
Total, assets 10 (6) (13) 1
Convertible debentures
        
Fair Value Assets and Liabilities Measured on Recurring Basis Unobservable Input Reconciliation [Line Items]        
Principal Transactions, assets (1) (2) (2) 0
Other Revenue, assets 0 0 0 0
Total, assets (1) (2) (2) 0
Non-U.S. governments and agencies
        
Fair Value Assets and Liabilities Measured on Recurring Basis Unobservable Input Reconciliation [Line Items]        
Principal Transactions, assets (18) (25) 63 0
Other Revenue, assets 0 0 0 0
Total, assets (18) (25) 63 0
Corporate debt
        
Fair Value Assets and Liabilities Measured on Recurring Basis Unobservable Input Reconciliation [Line Items]        
Principal Transactions, assets (11) (35) 25 3
Other Revenue, assets 0 0 0 0
Total, assets (11) (35) 25 3
Preferred stock
        
Fair Value Assets and Liabilities Measured on Recurring Basis Unobservable Input Reconciliation [Line Items]        
Principal Transactions, assets (3) (1) 8 2
Other Revenue, assets 0 0 0 0
Total, assets (3) (1) 8 2
Mortgages, mortgage-backed, and asset-backed securities
        
Fair Value Assets and Liabilities Measured on Recurring Basis Unobservable Input Reconciliation [Line Items]        
Principal Transactions, assets (8) (45) 61 (7)
Other Revenue, assets 0 0 0 0
Total, assets (8) (45) 61 (7)
Municipals and money markets
        
Fair Value Assets and Liabilities Measured on Recurring Basis Unobservable Input Reconciliation [Line Items]        
Principal Transactions, assets 1 6 9 (3)
Other Revenue, assets 0 0 0 0
Total, assets 1 6 9 (3)
Derivative contracts, net
        
Fair Value Assets and Liabilities Measured on Recurring Basis Unobservable Input Reconciliation [Line Items]        
Principal Transactions, assets 188 173 (35) (429)
Other Revenue, assets    0 0 0
Total, assets 188 173 (35) (429)
Investment securities non-qualifying
        
Fair Value Assets and Liabilities Measured on Recurring Basis Unobservable Input Reconciliation [Line Items]        
Principal Transactions, assets 0 0 0 0
Other Revenue, assets (3) 1 (8) (10)
Total, assets (3) 1 (8) (10)
Loans, notes and mortgages
        
Fair Value Assets and Liabilities Measured on Recurring Basis Unobservable Input Reconciliation [Line Items]        
Principal Transactions, assets 0 0 0 0
Other Revenue, assets 12 13 (32) 110
Total, assets 12 13 (32) 110
Other assets
        
Fair Value Assets and Liabilities Measured on Recurring Basis Unobservable Input Reconciliation [Line Items]        
Principal Transactions, assets 0   0  
Other Revenue, assets (6)   (4)  
Total, assets $ (6)   $ (4)