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Supplemental Cash Flow Information
12 Months Ended
Dec. 31, 2013
Supplemental Cash Flow Information  
Supplemental Cash Flow Information

21. Supplemental Cash Flow Information

Supplemental cash flow information is as follows (amounts in millions):

   For the Years Ended December 31,
   2013 2012 2011
Supplemental cash flow information:         
 Cash paid for income taxes $138 $159 $317
 Cash paid for interest  19  2  4