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Supplemental Cash Flow Information
 6 Months Ended
Jun. 28, 2013
Supplemental Cash Flow Elements [Abstract]  
Supplemental Cash Flow Information

20.  Supplemental Cash Flow Information

 

     First Half Ended  
     June 28,
2013		      June 29,
2012		  
     (in millions)  

Interest paid on outstanding debt

    $ 86       $   101   

Income tax payments

        137         164   

Income tax refunds

      16         13