Quarterly report pursuant to Section 13 or 15(d)

Representations and Warranties Obligations and Corporate Guarantees - Outstanding Claims (Details)

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Representations and Warranties Obligations and Corporate Guarantees - Outstanding Claims (Details) (USD $)
In Millions, unless otherwise specified
 3 Months Ended 9 Months Ended 3 Months Ended 9 Months Ended 3 Months Ended 9 Months Ended 3 Months Ended 9 Months Ended 3 Months Ended 9 Months Ended 1 Months Ended
Sep. 30, 2013
RescissionNotices
Sep. 30, 2012
Sep. 30, 2013
RescissionNotices
Sep. 30, 2012
Dec. 31, 2012
RescissionNotices
Sep. 30, 2013
Prime loans [Member]
Dec. 31, 2012
Prime loans [Member]
Sep. 30, 2013
Alt [Member]
Dec. 31, 2012
Alt [Member]
Sep. 30, 2013
Home Equity [Member]
Dec. 31, 2012
Home Equity [Member]
Sep. 30, 2013
Pay option [Member]
Dec. 31, 2012
Pay option [Member]
Sep. 30, 2013
Subprime [Member]
Dec. 31, 2012
Subprime [Member]
Sep. 30, 2013
Other Product Type [Member]
Dec. 31, 2012
Other Product Type [Member]
Sep. 30, 2013
Government Sponsored Entities [Member]
Dec. 31, 2012
Government Sponsored Entities [Member]
Sep. 30, 2013
Monoline [Member]
Dec. 31, 2012
Monoline [Member]
Sep. 30, 2013
Whole loan sale, private-label securitizations and other [Member]
Dec. 31, 2012
Whole loan sale, private-label securitizations and other [Member]
Sep. 30, 2013
Government Sponsored Entities [Member]
Sep. 30, 2013
Government Sponsored Entities [Member]
Sep. 30, 2013
Whole loan sale, private-label securitizations and other [Member]
Sep. 30, 2013
Monoline [Member]
Sep. 30, 2013
Monoline [Member]
Sep. 30, 2013
Other Non Government Sponsored Entites [Member]
Sep. 30, 2013
Other Non Government Sponsored Entites [Member]
Sep. 30, 2013
Whole-Loan Investors [Member]
Sep. 30, 2013
Whole-Loan Investors [Member]
Sep. 30, 2013
Maximum [Member]
Sep. 30, 2013
Minimum [Member]
Jan. 06, 2013
Federal National Mortgage Association FNMA [Member]
Sep. 30, 2013
First Lien Mortgages Serviced for Others [Member]
RescissionNotices
Sep. 30, 2013
Loans held for investment [Member]
RescissionNotices
Sep. 30, 2013
Implicated by Ongoing Litigation [Member]
RescissionNotices
Jan. 31, 2013
Federal National Mortgage Association FNMA [Member]
Sep. 30, 2013
Federal National Mortgage Association FNMA [Member]
First Lien Mortgages Serviced for Others [Member]
RescissionNotices
Sep. 30, 2013
Prior to 2009 [Member]
Government Sponsored Entities [Member]
Sep. 30, 2013
After 2008 [Member]
Government Sponsored Entities [Member]
Guarantor Obligations [Line Items]                                                                                    
Unpaid Principal Balance Of Loan Guarantees Satisfied $ 343 $ 431 $ 1,191 $ 1,686                                                                            
Loss On Loan Guarantees 168 231 466 640                                                                            
Payments For Loan Guarantees 277 396 1,035 1,410                                                                            
Payments for Legal Settlements 51 469 1,700 600                                                                     3,600      
Timeframe To Resolve Repurchase Claims In Dispute                                                                 120 days 90 days                
Outstanding Claims By Counterparty 17,660 [1],[2]   17,660 [1],[2]   28,278 [1],[2]                         1,208 [1],[2] 13,530 [1],[2] 1,541 [1],[2] 2,449 [1],[2] 14,911 [1],[2] 12,299 [1],[2]                                      
Timetable to reach a settlement once a breach of representations and warranties is confirmed                                                                 90 days 60 days                
Outstanding Claims By Product Type 17,660 [1],[2]   17,660 [1],[2]   28,278 [1],[2] 1,631 [1],[2] 8,793 [1],[2] 1,456 [1],[2] 5,428 [1],[2] 1,734 [1],[2] 2,394 [1],[2] 5,680 [1],[2] 5,884 [1],[2] 5,276 [1],[2] 3,687 [1],[2] 1,883 [1],[2] 2,092 [1],[2]                                                  
Outstanding Claims, From Mortgage Insurance Recission Notices 443   443   2,300                                                           1,900              
Repurchase Demands under Review                                                         911 911                     361 22
New Purchase Claims 1,800   5,100                                         642 1,600   5 49 1,000 3,000 174 442                    
Amount of Loan Repurchase Claims Resolved 822   15,600                                                                              
Amount of Loan Repurchase Claims Resolved Through Rescission 536   1,500                                                                              
Amount of Loan Repurchase Claims Resolved Through Repurchase and Make Whole Payments 286   962                                                                              
Outstanding Claims For Representations And Warranties Unpaid Principal Balance                                                         14,800 14,800                     1,100 105
Repurchase Demands Excluded from Outstanding Claims 1,400   1,400   1,600                                               13,900 13,900                     742 83
Repurchase Demands Received Excluded from Outstanding Claims     $ 300                                             $ 1,100                                
Number of Open Mortgage Insurance Rescission Notices 105,000   105,000   110,000                                                             43,000 11,000 51,000   24,000    
[1] At September 30, 2013 and December 31, 2012, unresolved repurchase claims did not include repurchase demands of $1.4 billion and $1.6 billion where the Corporation believes the claimants have not satisfied the contractual thresholds as discussed on page 212.
[2] Excludes certain MI rescission notices. However, at September 30, 2013 and December 31, 2012, included $443 million and $2.3 billion of repurchase requests received from the GSEs that have resulted solely from MI rescission notices. For additional information, see Mortgage Insurance Rescission Notices in this Note.