Quarterly report pursuant to Section 13 or 15(d)

Fair Value Option - Changes in FV of Assets and Liabilities (Details)

v2.4.0.6
Fair Value Option - Changes in FV of Assets and Liabilities (Details) (USD $)
In Millions, unless otherwise specified
3 Months Ended
Mar. 31, 2012
Mar. 31, 2011
Gains (Losses) Relating to Assets and Liabilities Accounted for Using Fair Value Option    
Gains (Losses) Relating to Assets and Liabilities Accounted for Using Fair Value Option $ (2,827) $ 801
Trading Account Profits (Losses) [Member]
   
Gains (Losses) Relating to Assets and Liabilities Accounted for Using Fair Value Option    
Gains (Losses) Relating to Assets and Liabilities Accounted for Using Fair Value Option (651) 179
Mortgage Banking Income (Loss) [Member]
   
Gains (Losses) Relating to Assets and Liabilities Accounted for Using Fair Value Option    
Gains (Losses) Relating to Assets and Liabilities Accounted for Using Fair Value Option 393 826
Other Income (loss) [Member]
   
Gains (Losses) Relating to Assets and Liabilities Accounted for Using Fair Value Option    
Gains (Losses) Relating to Assets and Liabilities Accounted for Using Fair Value Option (2,569) (204)
Loans reported as trading account assets [Member]
   
Gains (Losses) Relating to Assets and Liabilities Accounted for Using Fair Value Option    
Gains (Losses) Relating to Assets and Liabilities Accounted for Using Fair Value Option 78 69
Loans reported as trading account assets [Member] | Trading Account Profits (Losses) [Member]
   
Gains (Losses) Relating to Assets and Liabilities Accounted for Using Fair Value Option    
Gains (Losses) Relating to Assets and Liabilities Accounted for Using Fair Value Option 78 69
Loans reported as trading account assets [Member] | Mortgage Banking Income (Loss) [Member]
   
Gains (Losses) Relating to Assets and Liabilities Accounted for Using Fair Value Option    
Gains (Losses) Relating to Assets and Liabilities Accounted for Using Fair Value Option     
Loans reported as trading account assets [Member] | Other Income (loss) [Member]
   
Gains (Losses) Relating to Assets and Liabilities Accounted for Using Fair Value Option    
Gains (Losses) Relating to Assets and Liabilities Accounted for Using Fair Value Option     
Consumer and commercial loans [Member]
   
Gains (Losses) Relating to Assets and Liabilities Accounted for Using Fair Value Option    
Gains (Losses) Relating to Assets and Liabilities Accounted for Using Fair Value Option 301  
Consumer and commercial loans [Member] | Trading Account Profits (Losses) [Member]
   
Gains (Losses) Relating to Assets and Liabilities Accounted for Using Fair Value Option    
Gains (Losses) Relating to Assets and Liabilities Accounted for Using Fair Value Option (1)  
Consumer and commercial loans [Member] | Mortgage Banking Income (Loss) [Member]
   
Gains (Losses) Relating to Assets and Liabilities Accounted for Using Fair Value Option    
Gains (Losses) Relating to Assets and Liabilities Accounted for Using Fair Value Option     
Consumer and commercial loans [Member] | Other Income (loss) [Member]
   
Gains (Losses) Relating to Assets and Liabilities Accounted for Using Fair Value Option    
Gains (Losses) Relating to Assets and Liabilities Accounted for Using Fair Value Option 302  
Commercial loans [Member]
   
Gains (Losses) Relating to Assets and Liabilities Accounted for Using Fair Value Option    
Gains (Losses) Relating to Assets and Liabilities Accounted for Using Fair Value Option   95
Commercial loans [Member] | Trading Account Profits (Losses) [Member]
   
Gains (Losses) Relating to Assets and Liabilities Accounted for Using Fair Value Option    
Gains (Losses) Relating to Assets and Liabilities Accounted for Using Fair Value Option   (11)
Commercial loans [Member] | Other Income (loss) [Member]
   
Gains (Losses) Relating to Assets and Liabilities Accounted for Using Fair Value Option    
Gains (Losses) Relating to Assets and Liabilities Accounted for Using Fair Value Option   106
Loans held-for-sale [Member]
   
Gains (Losses) Relating to Assets and Liabilities Accounted for Using Fair Value Option    
Gains (Losses) Relating to Assets and Liabilities Accounted for Using Fair Value Option 591 1,093
Loans held-for-sale [Member] | Trading Account Profits (Losses) [Member]
   
Gains (Losses) Relating to Assets and Liabilities Accounted for Using Fair Value Option    
Gains (Losses) Relating to Assets and Liabilities Accounted for Using Fair Value Option 56  
Loans held-for-sale [Member] | Mortgage Banking Income (Loss) [Member]
   
Gains (Losses) Relating to Assets and Liabilities Accounted for Using Fair Value Option    
Gains (Losses) Relating to Assets and Liabilities Accounted for Using Fair Value Option 431 872
Loans held-for-sale [Member] | Other Income (loss) [Member]
   
Gains (Losses) Relating to Assets and Liabilities Accounted for Using Fair Value Option    
Gains (Losses) Relating to Assets and Liabilities Accounted for Using Fair Value Option 104 221
Securities financing agreements [Member]
   
Gains (Losses) Relating to Assets and Liabilities Accounted for Using Fair Value Option    
Gains (Losses) Relating to Assets and Liabilities Accounted for Using Fair Value Option (104) (111)
Securities financing agreements [Member] | Trading Account Profits (Losses) [Member]
   
Gains (Losses) Relating to Assets and Liabilities Accounted for Using Fair Value Option    
Gains (Losses) Relating to Assets and Liabilities Accounted for Using Fair Value Option     
Securities financing agreements [Member] | Mortgage Banking Income (Loss) [Member]
   
Gains (Losses) Relating to Assets and Liabilities Accounted for Using Fair Value Option    
Gains (Losses) Relating to Assets and Liabilities Accounted for Using Fair Value Option     
Securities financing agreements [Member] | Other Income (loss) [Member]
   
Gains (Losses) Relating to Assets and Liabilities Accounted for Using Fair Value Option    
Gains (Losses) Relating to Assets and Liabilities Accounted for Using Fair Value Option (104) (111)
Other assets [Member]
   
Gains (Losses) Relating to Assets and Liabilities Accounted for Using Fair Value Option    
Gains (Losses) Relating to Assets and Liabilities Accounted for Using Fair Value Option 18 29
Other assets [Member] | Trading Account Profits (Losses) [Member]
   
Gains (Losses) Relating to Assets and Liabilities Accounted for Using Fair Value Option    
Gains (Losses) Relating to Assets and Liabilities Accounted for Using Fair Value Option     
Other assets [Member] | Mortgage Banking Income (Loss) [Member]
   
Gains (Losses) Relating to Assets and Liabilities Accounted for Using Fair Value Option    
Gains (Losses) Relating to Assets and Liabilities Accounted for Using Fair Value Option     
Other assets [Member] | Other Income (loss) [Member]
   
Gains (Losses) Relating to Assets and Liabilities Accounted for Using Fair Value Option    
Gains (Losses) Relating to Assets and Liabilities Accounted for Using Fair Value Option 18 29
Long-term deposits [Member]
   
Gains (Losses) Relating to Assets and Liabilities Accounted for Using Fair Value Option    
Gains (Losses) Relating to Assets and Liabilities Accounted for Using Fair Value Option 21 5
Long-term deposits [Member] | Trading Account Profits (Losses) [Member]
   
Gains (Losses) Relating to Assets and Liabilities Accounted for Using Fair Value Option    
Gains (Losses) Relating to Assets and Liabilities Accounted for Using Fair Value Option     
Long-term deposits [Member] | Mortgage Banking Income (Loss) [Member]
   
Gains (Losses) Relating to Assets and Liabilities Accounted for Using Fair Value Option    
Gains (Losses) Relating to Assets and Liabilities Accounted for Using Fair Value Option     
Long-term deposits [Member] | Other Income (loss) [Member]
   
Gains (Losses) Relating to Assets and Liabilities Accounted for Using Fair Value Option    
Gains (Losses) Relating to Assets and Liabilities Accounted for Using Fair Value Option 21 5
Asset-backed secured financings [Member]
   
Gains (Losses) Relating to Assets and Liabilities Accounted for Using Fair Value Option    
Gains (Losses) Relating to Assets and Liabilities Accounted for Using Fair Value Option (38) (46)
Asset-backed secured financings [Member] | Trading Account Profits (Losses) [Member]
   
Gains (Losses) Relating to Assets and Liabilities Accounted for Using Fair Value Option    
Gains (Losses) Relating to Assets and Liabilities Accounted for Using Fair Value Option     
Asset-backed secured financings [Member] | Mortgage Banking Income (Loss) [Member]
   
Gains (Losses) Relating to Assets and Liabilities Accounted for Using Fair Value Option    
Gains (Losses) Relating to Assets and Liabilities Accounted for Using Fair Value Option (38) (46)
Asset-backed secured financings [Member] | Other Income (loss) [Member]
   
Gains (Losses) Relating to Assets and Liabilities Accounted for Using Fair Value Option    
Gains (Losses) Relating to Assets and Liabilities Accounted for Using Fair Value Option      
Unfunded loan commitments [Member]
   
Gains (Losses) Relating to Assets and Liabilities Accounted for Using Fair Value Option    
Gains (Losses) Relating to Assets and Liabilities Accounted for Using Fair Value Option 404 132
Unfunded loan commitments [Member] | Trading Account Profits (Losses) [Member]
   
Gains (Losses) Relating to Assets and Liabilities Accounted for Using Fair Value Option    
Gains (Losses) Relating to Assets and Liabilities Accounted for Using Fair Value Option     
Unfunded loan commitments [Member] | Mortgage Banking Income (Loss) [Member]
   
Gains (Losses) Relating to Assets and Liabilities Accounted for Using Fair Value Option    
Gains (Losses) Relating to Assets and Liabilities Accounted for Using Fair Value Option     
Unfunded loan commitments [Member] | Other Income (loss) [Member]
   
Gains (Losses) Relating to Assets and Liabilities Accounted for Using Fair Value Option    
Gains (Losses) Relating to Assets and Liabilities Accounted for Using Fair Value Option 404 132
Other short-term borrowings [Member]
   
Gains (Losses) Relating to Assets and Liabilities Accounted for Using Fair Value Option    
Gains (Losses) Relating to Assets and Liabilities Accounted for Using Fair Value Option 7 56
Other short-term borrowings [Member] | Trading Account Profits (Losses) [Member]
   
Gains (Losses) Relating to Assets and Liabilities Accounted for Using Fair Value Option    
Gains (Losses) Relating to Assets and Liabilities Accounted for Using Fair Value Option 7 56
Other short-term borrowings [Member] | Mortgage Banking Income (Loss) [Member]
   
Gains (Losses) Relating to Assets and Liabilities Accounted for Using Fair Value Option    
Gains (Losses) Relating to Assets and Liabilities Accounted for Using Fair Value Option     
Other short-term borrowings [Member] | Other Income (loss) [Member]
   
Gains (Losses) Relating to Assets and Liabilities Accounted for Using Fair Value Option    
Gains (Losses) Relating to Assets and Liabilities Accounted for Using Fair Value Option     
Long-term debt [Member]
   
Gains (Losses) Relating to Assets and Liabilities Accounted for Using Fair Value Option    
Gains (Losses) Relating to Assets and Liabilities Accounted for Using Fair Value Option (4,105) (521)
Long-term debt [Member] | Trading Account Profits (Losses) [Member]
   
Gains (Losses) Relating to Assets and Liabilities Accounted for Using Fair Value Option    
Gains (Losses) Relating to Assets and Liabilities Accounted for Using Fair Value Option (791) 65
Long-term debt [Member] | Mortgage Banking Income (Loss) [Member]
   
Gains (Losses) Relating to Assets and Liabilities Accounted for Using Fair Value Option    
Gains (Losses) Relating to Assets and Liabilities Accounted for Using Fair Value Option     
Long-term debt [Member] | Other Income (loss) [Member]
   
Gains (Losses) Relating to Assets and Liabilities Accounted for Using Fair Value Option    
Gains (Losses) Relating to Assets and Liabilities Accounted for Using Fair Value Option $ (3,314) $ (586)