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Stockholders' Equity (Tables)
 75 Months Ended
Dec. 31, 2014
Equity [Abstract]  
Schedule of Activity in Noncontrolling Interests

The following table illustrates the noncontrolling interests activity for the periods presented:

 

     2014     2013  
     (Dollars in millions)  

Balance at September 30

    $ 122     $ 132  

Net income attributable to noncontrolling interests

      4       6  

Noncontrolling interest foreign currency translation adjustment

      (2 )      (1 ) 

Noncontrolling interest dividends

      —          (6 ) 
  

 

 

    

 

 

  

Balance at December 31

    $ 124     $ 131