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Acquired Property Net (Tables)
3 Months Ended
Mar. 31, 2013
Real Estate [Abstract]  
Activity in acquired property and the related valuation allowance [Table Text Block]
The following table displays the activity in acquired property, net of the related valuation allowance, for the three months ended March 31, 2013 and 2012.
 
 
For the Three Months Ended March 31,
 
 
2013
 
2012
 
 
(Dollars in millions)
Beginning Balance, January 1
 
$
10,489

 
$
11,373

Additions
 
3,676

 
3,705

Disposals
 
(3,901
)
 
(4,300
)
Write-downs, net of recoveries
 
(115
)
 
(159
)
Ending Balance, March 31(1)
 
$
10,149

 
$
10,619

__________
(1) 
Includes valuation allowance of $570 million and $790 million as of March 31, 2013 and 2012, respectively.