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Supplemental Cash Flow Information
12 Months Ended
Dec. 31, 2014
Supplemental Cash Flow Information  
Supplemental Cash Flow Information

20. Supplemental Cash Flow Information

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

   For the Years Ended December 31,
   2014 2013 2012
Supplemental cash flow information:         
 Cash paid for income taxes, net of refunds $34 $138 $159
 Cash paid for interest  201  19  2