Quarterly report pursuant to Section 13 or 15(d)

Securitizations and Other Variable Interest Entities - First Lien Mortgages (Details)

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Securitizations and Other Variable Interest Entities - First Lien Mortgages (Details) (USD $)
In Millions, unless otherwise specified
 3 Months Ended
Mar. 31, 2012
Mar. 31, 2011
Dec. 31, 2011
Commercial Mortgage Backed Securities [Member]
      
In Text Details [Abstract]      
Servicing Fee And Ancillary Fee Income $ 1 $ 3  
Servicing Advance 167   152
Consumer Mortgage [Member]
      
In Text Details [Abstract]      
Servicing Fee And Ancillary Fee Income 1,300 1,600  
Servicing Advance 25,500   26,000
First Lien Mortgages [Member]
      
Table Details [Abstract]      
Gain on Sale of Mortgage Loans 319 1,100  
In Text Details [Abstract]      
Loans repurchased from investors and securitization trusts 195 5,800  
First Lien Mortgages [Member] | Agency Securities [Member]
      
Securitizations Related Information [Abstract]      
Cash proceeds from new securitizations 6,338 [1] 53,081 [1]  
Loss on securitizations, net of hedges (17) [2] 172 [2]  
First Lien Mortgages [Member] | Commercial Mortgage Backed Securities [Member]
      
Securitizations Related Information [Abstract]      
Cash proceeds from new securitizations 325 [1] 0 [1]  
Loss on securitizations, net of hedges $ 0 [2] $ 0 [2]  
[1] Maximum loss exposure excludes the liability for representations and warranties obligations and corporate guarantees and also excludes servicing advances and MSRs. For more information, see Note 8 – Representations and Warranties Obligations and Corporate Guarantees and Note 18 – Mortgage Servicing Rights.
[2] Substantially all of the first-lien residential mortgage loans securitized are initially classified as LHFS and accounted for under the fair value option. As such, gains are recognized on these LHFS prior to securitization. During the three months ended March 31, 2012 and 2011, the Corporation recognized $319 million and $1.1 billion of gains on these LHFS, net of hedges.