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Summarized Financial Data - Tengizchevroil LLP (Tables)
9 Months Ended
Sep. 30, 2015
Summarized Financial Data of Affiliate [Abstract]  
Summarized Financial Data - Tengizchevroil LLP
Summarized financial information for 100 percent of TCO is presented in the following table:
 
Nine Months Ended
September 30
 
2015
 
2014
 
(Millions of dollars)

   Sales and other operating revenues
$
10,215

 
$
18,628

   Costs and other deductions
5,779

 
8,112

   Net income attributable to TCO
3,109

 
7,360