v2.4.0.6
Securitizations and Variable Interest Entities Textual (Details) (USD $)
 12 Months Ended
Dec. 31, 2012
Dec. 31, 2011
Dec. 31, 2010
Securitizations and Variable Interest Entities (Textual) [Abstract]      
Short-term borrowings, Amount $ 57,175,000,000 $ 49,091,000,000 $ 55,401,000,000
Accrued expenses and other liabilities 76,668,000,000 77,665,000,000  
Long-term Debt 127,379,000,000 125,354,000,000  
% of underlying collateral rated as investment grade 83.00% 88.00%  
Investment in a single tax credit structure as a percentage of outstanding equity interests 50.00%    
Net Gains from Sale of Assets Securitizations 518,000,000 112,000,000 27,000,000
Amount of servicing asset at fair value 11,538,000,000 12,603,000,000  
Amount of servicing asset at amortized cost 1,160,000,000 1,408,000,000  
Total Loans 1,414,103,000,000 1,311,060,000,000  
Delinquent loans 33,900,000,000 35,508,000,000  
Asset-specific liquidity facilities as a percentage of funding commitment 102.00%    
VIEs that we consolidate, recourse [Member]
      
Securitizations and Variable Interest Entities (Textual) [Abstract]      
Short-term borrowings, Amount 2,100,000,000 3,400,000,000  
Accrued expenses and other liabilities 767,000,000 963,000,000  
Long-term Debt 29,000,000 30,000,000  
FNMA, FHLMC and GNMA [Member]
      
Securitizations and Variable Interest Entities (Textual) [Abstract]      
Total Loans 1,300,000,000,000 1,200,000,000,000  
Delinquent loans 17,400,000,000 19,700,000,000  
Residential Mortgage [Member]
      
Securitizations and Variable Interest Entities (Textual) [Abstract]      
Amount transferred related to mortgages to unconsolidated VIE 517,300,000,000 329,100,000,000 379,000,000,000
Amount of servicing asset at amortized cost     400,000,000
Servicing asset, total     4,500,000,000
Commercial Mortgage [Member]
      
Securitizations and Variable Interest Entities (Textual) [Abstract]      
Amount transferred related to mortgages to unconsolidated VIE 3,400,000,000 3,000,000,000 336,000,000
Gain Loss on Transfer of Unconsolidated VIE Debt Investments 178,000,000 48,000,000 23,000,000
Loans [Member]
      
Securitizations and Variable Interest Entities (Textual) [Abstract]      
Assets pledged to collateralize the borrowings of variable interest entity 6,400,000,000 6,200,000,000  
Available for sale Securities [Member]
      
Securitizations and Variable Interest Entities (Textual) [Abstract]      
Assets pledged to collateralize the borrowings of variable interest entity 179,000,000 316,000,000  
Cash and cash equivalents [Member]
      
Securitizations and Variable Interest Entities (Textual) [Abstract]      
Assets pledged to collateralize the borrowings of variable interest entity 138,000,000 154,000,000  
Level 3 [Member] | Residential Mortgage [Member]
      
Securitizations and Variable Interest Entities (Textual) [Abstract]      
Amount of servicing asset at fair value 4,900,000,000 4,000,000,000 4,100,000,000
Amount of liability for repurchase reserves at fair value 274,000,000 101,000,000 144,000,000
Level 3 [Member] | Commercial Mortgage [Member]
      
Securitizations and Variable Interest Entities (Textual) [Abstract]      
Amount of servicing asset at fair value 13,000,000 20,000,000  
Equity Interests [Member]
      
Securitizations and Variable Interest Entities (Textual) [Abstract]      
Total equity interest 5,800,000,000 4,500,000,000  
Long-term debt [Member]
      
Securitizations and Variable Interest Entities (Textual) [Abstract]      
Private placement debt financing 6,000,000,000 6,000,000,000  
Commercial Mortgage Servicing [Member]
      
Securitizations and Variable Interest Entities (Textual) [Abstract]      
Fair value of interests held 1,400,000,000 1,400,000,000  
Decrease in fair value from 25% adverse change 139,000,000 219,000,000  
Trust Preferred Securities [Member]
      
Securitizations and Variable Interest Entities (Textual) [Abstract]      
Trust Preferred Securities Notice Redeemed During Period, Value 2,700,000,000    
Trust Preferred Securities [Member] | Preferred stock [Member]
      
Securitizations and Variable Interest Entities (Textual) [Abstract]      
Carrying value - equity 2,500,000,000 2,500,000,000  
Trust Preferred Securities [Member] | Junior Subordinated Debt [Member]
      
Securitizations and Variable Interest Entities (Textual) [Abstract]      
Carrying value - asset (liability) (4,900,000,000) (7,600,000,000)  
Other Investments [Member]
      
Securitizations and Variable Interest Entities (Textual) [Abstract]      
Securities Available for sale Portfolio of ARS issued by VIEs 329,000,000 624,000,000  
Legacy Wachovia [Member]
      
Securitizations and Variable Interest Entities (Textual) [Abstract]      
Securities Available for sale Portfolio of ARS issued by VIEs $ 357,000,000 $ 643,000,000