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Goodwill
6 Months Ended
Jun. 30, 2013
Goodwill And Intangible Assets Disclosure [Abstract]  
Goodwill

14. Goodwill

The changes in the carrying amount of goodwill for the six months ended June 30, 2013 were as follows:

 

(In millions)

   Refining
& Marketing
     Speedway      Pipeline
Transportation
         Total      

Balance as of December 31, 2012

   $ 551       $ 217       $ 162       $   930   

Acquisitions(a)

     —           8         —           8   
  

 

 

    

 

 

    

 

 

    

 

 

 

Balance as of June 30, 2013

   $ 551       $ 225       $ 162       $ 938   
  

 

 

    

 

 

    

 

 

    

 

 

 

 

(a) 

See Note 5 for information on acquisitions.