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Property and Equipment
12 Months Ended
Dec. 31, 2014
Property, Plant and Equipment [Abstract]  
Property and Equipment

(4)  Property and Equipment

Property and equipment included in other assets were as follows:

 

     December 31  
     2014        2013  
     (in millions)  

Cost

   $ 488         $ 501   

Accumulated depreciation

     239           243   
  

 

 

      

 

 

 
   $ 249         $ 258   
  

 

 

      

 

 

 

Depreciation expense related to property and equipment was $54 million, $55 million and $54 million for 2014, 2013, and 2012, respectively.