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Property and Equipment
12 Months Ended
Dec. 31, 2013
Property Plant And Equipment [Abstract]  
Property and Equipment

(4)  Property and Equipment

Property and equipment included in other assets were as follows:

 

     December 31  
     2013        2012  
     (in millions)  

Cost

   $ 501         $ 517   

Accumulated depreciation

     243           248   
  

 

 

      

 

 

 
   $ 258         $ 269   
  

 

 

      

 

 

 

Depreciation expense related to property and equipment was $55 million, $54 million and $58 million for 2013, 2012, and 2011, respectively.