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Summarized Financial Data - Tengizchevroil LLP (Details 1) (Tengizchevroil LLP [Member], USD $) In Millions, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012
Tengizchevroil LLP [Member]
Affiliate Statements Captions [Line Items]
Current assets	$ 3,598	$ 3,251
Other assets	12,964	12,020
Current liabilities	3,016	2,597
Other liabilities	2,761	3,390
Total net equity	$ 10,785	$ 9,284

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

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.