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)

v3.5.0.2
Representations and Warranties Obligations and Corporate Guarantees - Private-label Securitization and Whole-loan Sales Experience (Details) - USD ($)
$ in Billions
9 Months Ended
Sep. 30, 2016
Dec. 31, 2015
Loss Contingencies [Line Items]    
Inactive claims, threshold period of inactivity after denial 6 months  
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 $ 16.7 $ 16.7
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 $ 3.5 $ 3.5