Quarterly report pursuant to Section 13 or 15(d)

Representations and Warranties Obligations and Corporate Guarantees - Unresolved Repurchase Claims (Details)

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Representations and Warranties Obligations and Corporate Guarantees - Unresolved Repurchase Claims (Details) - USD ($)
$ in Millions
 3 Months Ended 6 Months Ended
Jun. 30, 2016
Jun. 30, 2016
Dec. 31, 2015
Loss Contingencies [Line Items]      
Total unresolved repurchase claims by product type, net of duplicate claims $ 18,319 $ 18,319 $ 18,364
Outstanding claims with review 11,900 11,900 11,900
Outstanding claims without review 4,800 4,800 4,800
New purchase claims 542 594  
New purchase claims, deemed time-barred 439 440  
Amount of loan repurchase claims resolved 528 639  
Loan repurchase claims resolved, deemed time-barred 476 477  
Unresolved repurchase claims, repurchase demands amount 1,300 1,300 1,400
Private-label securitization trustees, whole-loan investors, including third-party securitization sponsors and other      
Loss Contingencies [Line Items]      
Notional amount of unresolved repurchase claims 16,720 16,720 16,748
Monolines      
Loss Contingencies [Line Items]      
Notional amount of unresolved repurchase claims 1,591 1,591 1,599
GSEs      
Loss Contingencies [Line Items]      
Notional amount of unresolved repurchase claims 8 8 $ 17
GSEs | Mortgage Loans Originated 2009 and Prior      
Loss Contingencies [Line Items]      
Unresolved repurchase claims notional amount $ 7 $ 7