Impairment charge after income tax.

No definition available.

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- Definition

Amount of write-down of assets recognized in the income statement. Includes, but is not limited to, losses from tangible assets, intangible assets and goodwill.

+ 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

Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 360

-SubTopic 10

-Section 45

-Paragraph 4

-URI http://asc.fasb.org/extlink&oid=8077374&loc=d3e2420-110228

+ Details

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- Definition

The cash inflow from the sale of property, plant and equipment (capital expenditures), software, and other intangible assets.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Glossary Investing Activities

-URI http://asc.fasb.org/extlink&oid=6516133

Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 230

-SubTopic 10

-Section 45

-Paragraph 12

-Subparagraph (c)

-URI http://asc.fasb.org/extlink&oid=31042434&loc=d3e3179-108585

+ Details

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- Definition

The difference between the value of the consideration received by the Entity on the sale or disposal and the consideration received by the Entity, including any tax related impact.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 360

-SubTopic 10

-Section 50

-Paragraph 3

-URI http://asc.fasb.org/extlink&oid=6391110&loc=d3e2941-110230

Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 205

-SubTopic 20

-Section 50

-Paragraph 1

-Subparagraph (b)

-URI http://asc.fasb.org/extlink&oid=6360339&loc=d3e1361-107760

+ Details

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- Definition

The difference between the value of the consideration received by the Entity on the sale or disposal and net book value of assets sold or disposed, before any tax related impact.

+ References

+ Details

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Asset Impairments - Additional Information (Detail) (USD $) In Millions, unless otherwise specified	12 Months Ended			1 Months Ended
	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2013
Significant Acquisitions And Disposals [Line Items]
Sale of assets	$ 2,978	$ 4,458	$ 843
Impairment charge before income tax		289us-gaap_AssetImpairmentCharges	582us-gaap_AssetImpairmentCharges
Natuna A [Member]
Significant Acquisitions And Disposals [Line Items]
Sale of assets				656
Gain on sale, pre-tax		388		388
Gain on sale, after-tax		343		343
Exploration and Production [Member]
Significant Acquisitions And Disposals [Line Items]
Impairment charge before income tax			582
Impairment charge after income tax			344
Exploration and Production [Member] \| Cotulla Area of Eagle Ford Shale [Member]
Significant Acquisitions And Disposals [Line Items]
Impairment charge before income tax			374
Impairment charge after income tax			228
Exploration and Production [Member] \| Corporation's Non-producing Properties UK North Sea [Member]
Significant Acquisitions And Disposals [Line Items]
Impairment charge before income tax			208
Impairment charge after income tax			116
Exploration and Production [Member] \| Natuna A And Pangkah [Member]
Significant Acquisitions And Disposals [Line Items]
Sale of assets		1,300
Exploration and Production [Member] \| Natuna A [Member]
Significant Acquisitions And Disposals [Line Items]
Gain on sale, pre-tax		388		388
Gain on sale, after-tax		343		343
Exploration and Production [Member] \| Pangkah [Member]
Significant Acquisitions And Disposals [Line Items]
Impairment charge before income tax		289
Impairment charge after income tax		$ 187