The cash inflow from the sale of long-lived, physical assets and other assets.

No definition available.

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- Definition

Working interest sold.

+ References

No definition available.

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- Definition

Amount classified as assets attributable to disposal group held for sale or disposed of.

+ References

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- Definition

Amount of gain (loss) on sale or disposal of assets, including but not limited to property plant and equipment, intangible assets and equity in securities of subsidiaries or equity method investee.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 360

-SubTopic 10

-Section 45

-Paragraph 5

-URI http://asc.fasb.org/extlink&oid=8077374&loc=d3e2443-110228

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- Definition

The aggregate amount of write-downs for impairments recognized during the period for long-lived assets held for abandonment, exchange or sale.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 230

-SubTopic 10

-Section 45

-Paragraph 28

-Subparagraph (b)

-URI http://asc.fasb.org/extlink&oid=31042434&loc=d3e3602-108585

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-Publisher FASB

-Name Accounting Standards Codification

-Topic 360

-SubTopic 10

-Section 45

-Paragraph 15

-URI http://asc.fasb.org/extlink&oid=8077374&loc=d3e2611-110228

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- Definition

Amount classified as liabilities attributable to disposal group held for sale or disposed of.

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Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 205

-SubTopic 20

-Section 45

-Paragraph 10

-URI http://asc.fasb.org/extlink&oid=6892542&loc=d3e1107-107759

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-Publisher FASB

-Name Accounting Standards Codification

-Topic 205

-SubTopic 20

-Section 50

-Paragraph 2

-URI http://asc.fasb.org/extlink&oid=6360339&loc=d3e1436-107760

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Acquisitions, Divestitures, and Assets Held for Sale - Divestitures and Assets Held for Sale (Detail) (USD $) In Millions, unless otherwise specified	12 Months Ended
	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Property, Plant, and Equipment [Line Items]
Proceeds from divestitures	$ 4,968	$ 567	$ 657
Gains (losses) on divestitures, net	1,891us-gaap_GainLossOnDispositionOfAssets1	(470)us-gaap_GainLossOnDispositionOfAssets1	(71)us-gaap_GainLossOnDispositionOfAssets1
Assets Held For Sale [Member]
Property, Plant, and Equipment [Line Items]
Long-term assets associated with assets held-for-sale		616
Long-term liabilities associated with assets held for sale		27
Oil and Gas Exploration and Production Reporting Segment [Member] \| Assets Held For Sale [Member] \| Fair Value, Inputs, Level 2 [Member] \| Market Approach Valuation Technique [Member] \| Nonrecurring [Member]
Property, Plant, and Equipment [Line Items]
Losses on assets held for sale	456	704
Oil and Gas Exploration and Production Reporting Segment [Member] \| Offshore Area 1 in Mozambique [Member]
Property, Plant, and Equipment [Line Items]
Proceeds from divestitures	2,640
Gains (losses) on divestitures, net	1,500
Working interest sold	10.00%
Oil and Gas Exploration and Production Reporting Segment [Member] \| Chinese subsidiary [Member]
Property, Plant, and Equipment [Line Items]
Proceeds from divestitures	1,075
Gains (losses) on divestitures, net	510
Oil and Gas Exploration and Production Reporting Segment [Member] \| Vito Deepwater Development and Surrounding Exploration Blocks [Member]
Property, Plant, and Equipment [Line Items]
Proceeds from divestitures	500
Gains (losses) on divestitures, net	237
Oil and Gas Exploration and Production Reporting Segment [Member] \| Pinedale/Jonah Assets [Member]
Property, Plant, and Equipment [Line Items]
Proceeds from divestitures	$ 581