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 $)
 3 Months Ended 6 Months Ended
Jun. 30, 2013
Jun. 30, 2012
Jun. 30, 2013
Jun. 30, 2012
Dec. 31, 2012
Variable Interest Entity [Line Items]          
Repurchase of loans from home equity securitization trusts $ 77,000,000 $ 0 $ 116,000,000 $ 0  
Consumer Mortgage [Member]
          
In Text Details [Abstract]          
Servicing Fee And Ancillary Fee Income 768,000,000 1,200,000,000 1,700,000,000 2,500,000,000  
Servicing Advance 19,900,000,000   19,900,000,000   23,200,000,000
Resecuritization Trusts [Member]
          
Securitizations Related Information [Abstract]          
Loss on securitizations, net of hedges 0 0 0 0  
First Lien Mortgages [Member]
          
Table Details [Abstract]          
Gain on Sale of Mortgage Loans 661,000,000 395,000,000 1,300,000,000 714,000,000  
Fair value of securities received in connection with first-lien mortgage securitizations 1,500,000,000 1,100,000,000 2,500,000,000 2,200,000,000  
In Text Details [Abstract]          
Loans repurchased from investors and securitization trusts 3,100,000,000 2,500,000,000 6,200,000,000 2,700,000,000  
First Lien Mortgages [Member] | Agency Securities [Member]
          
Securitizations Related Information [Abstract]          
Cash proceeds from new securitizations 15,363,000,000 [1] 8,889,000,000 [1] 27,376,000,000 [1] 15,227,000,000 [1]  
Loss on securitizations, net of hedges 27,000,000 [2] (45,000,000) [2] 56,000,000 [2] (62,000,000) [2]  
First Lien Mortgages [Member] | Commercial Mortgage Backed Securities [Member]
          
Securitizations Related Information [Abstract]          
Cash proceeds from new securitizations 208,000,000 [1] 0 [1] 208,000,000 [1] 325,000,000 [1]  
Loss on securitizations, net of hedges $ 0 [2] $ 0 [2] $ 0 [2] $ 0 [2]  
[1] The Corporation sells residential mortgage loans to GSEs in the normal course of business and receives MBS in exchange which may then be sold into the market to third-party investors for cash proceeds.
[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. The Corporation recognized $661 million and $1.3 billion of gains, net of hedges, on loans securitized during the three and six months ended June 30, 2013 compared to $395 million and $714 million for the same periods in 2012.