Quarterly report pursuant to Section 13 or 15(d)

Representations and Warranties Obligations and Corporate Guarantees - Private-label Securitization and Whole-loan Sales Experience (Details)

v3.3.0.814
Representations and Warranties Obligations and Corporate Guarantees - Private-label Securitization and Whole-loan Sales Experience (Details) - USD ($)
 9 Months Ended
Sep. 30, 2015
Dec. 31, 2014
Loss Contingencies [Line Items]    
Notional amount of unresolved repurchase claims $ 20,944,000,000 $ 26,094,000,000
Inactive claims, threshold period of inactivity after denial 6 months  
Maximum estimated range of possible loss $ 2,400,000,000.0  
Representations and Warranties Exposure    
Loss Contingencies [Line Items]    
Maximum estimated range of possible loss 2,000,000,000  
Private-label securitization trustees, whole-loan investors, including third-party securitization sponsors and other    
Loss Contingencies [Line Items]    
Notional amount of unresolved repurchase claims 19,277,000,000 24,489,000,000
Mortgage Loans Originated between 2004 and 2008 | Private-label securitization trustees, whole-loan investors, including third-party securitization sponsors and other    
Loss Contingencies [Line Items]    
Notional amount of unresolved repurchase claims 16,600,000,000 21,200,000,000
Net duplicate claims amount in which statue of limitations has expired 7,400,000,000 5,200,000,000
Mortgage Loans Originated between 2004 and 2008 | Private-Label Securitization Trustees    
Loss Contingencies [Line Items]    
Amount in which corporation owns substantially all outstanding bonds in the tranche $ 3,500,000,000 $ 3,500,000,000