Non-operating leasehold interest ownership percentage.

No definition available.

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- Definition

Amount of gain (loss) recognized in settlement of litigation and insurance claims. Excludes claims within an insurance entity's normal claims settlement process.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 450

-SubTopic 20

-Section 50

-Paragraph 1

-URI http://asc.fasb.org/extlink&oid=25496072&loc=d3e14326-108349

+ Details

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- Details

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- Definition

Amount of loss contingency liability.

+ References

+ Details

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- Definition

Amount of loss contingency liability expected to be resolved within one year or the normal operating cycle, if longer.

+ References

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Contingencies - Deepwater Horizon Events (Detail) (USD $)	3 Months Ended		6 Months Ended					6 Months Ended
	Jun. 30, 2014	Jun. 30, 2013	Jun. 30, 2014	Jun. 30, 2013	Sep. 30, 2011 Macondo Exploration Well [Member]	Jun. 30, 2014 Deepwater Horizon [Member] Pending Litigation [Member]	Dec. 31, 2013 Deepwater Horizon [Member] Pending Litigation [Member]	Jun. 30, 2014 Deepwater Horizon [Member] Pending Litigation [Member] Clean Water Act [Member]	Jun. 30, 2014 Deepwater Horizon [Member] BP indemnification liability [Member]
Loss Contingencies [Line Items]
Anadarko's nonoperated interest					25.00%
Loss contingency accrual									$ 0
Deepwater Horizon settlement and related costs	93,000,000	4,000,000	93,000,000	7,000,000				90,000,000
Litigation-related contingent liability						$ 92,000,000	$ 0	$ 90,000,000