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Concentrations of Credit Risk (Tables)
9 Months Ended
Sep. 30, 2013
Risks and Uncertainties [Abstract]  
Estimated Benefit from Mortgage Insurers [Table Text Block]
The following table displays the amount by which our estimated benefit from mortgage insurance as of September 30, 2013 and December 31, 2012 reduced our total loss reserves as of those dates.
 
 
As of
 
 
September 30, 2013
 
December 31, 2012
 
 
(Dollars in millions)
 
Contractual mortgage insurance benefit
 
$
7,117

 
 
 
$
9,993

 
Less: Collectibility adjustment(1)
 
459

 
 
 
708

 
Estimated benefit included in total loss reserves
 
$
6,658

 
 
 
$
9,285

 
__________
(1) 
Represents an adjustment that reduces the contractual benefit for our assessment of our mortgage insurer counterparties’ inability to fully pay the contractual mortgage insurance claims.