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Prepaid Expenses (Tables)
 6 Months Ended
Jun. 30, 2014
Prepaid Expenses [Abstract]  
Components Of Prepaid Expenses

 

 

 

 

 

 

 

June 30,

 

December 31,

 

2014

 

2013

 

 

(in millions)

 

 

 

 

 

 

Prepaid drilling costs

$
2 

 

$
9 

Prepaid insurance

 
2 

 

 
8 

Prepaid taxes

 
12 

 

 
14 

Total

$
16 

 

$
31