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Summarized Financial Data - Tengizchevroil LLP (Details 1) - Tengizchevroil LLP [Member] - USD ($) $ in Millions	Dec. 31, 2015	Dec. 31, 2014
Affiliate Statements Captions [Line Items]
Current assets	$ 2,098	$ 3,425
Other assets	17,094	14,810
Current liabilities	1,063	1,531
Other liabilities	2,266	2,375
Total TCO net equity	$ 15,863	$ 14,329

The amount of current liabilities reported by an equity method investment of the entity.

The amount of noncurrent assets reported by an equity method investment of the entity.

The amount of noncurrent liabilities reported by an equity method investment of the entity.