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Acquisitions And Divestitures (Schedule Of Unaudited Proforma Information) (Details) (EnLink And GeoSouthern Intermediate Holdings, LLC [Member], USD $) In Millions, except Per Share data, unless otherwise specified	9 Months Ended
	Sep. 30, 2014	Sep. 30, 2013
EnLink And GeoSouthern Intermediate Holdings, LLC [Member]
Business Acquisition [Line Items]
Total operating revenues	$ 14,218	$ 9,603
Net earnings (loss)	2,109	(192)
Noncontrolling interests	68	32
Net earnings (loss) attributable to Devon	$ 2,041	$ (224)
Net earnings (loss) per common share attributable to Devon	$ 4.98	$ (0.55)

X

- Definition

Business Acquisition, Pro Forma Net Income (Loss) Attributable To Noncontrolling interests.

+ References

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- Definition

The pro forma basic net income per share for a period as if the business combination or combinations had been completed at the beginning of a period.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 805

-SubTopic 10

-Section 50

-Paragraph 2

-Subparagraph (h)(2)-(3)

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The pro forma income from continuing operations before changes in accounting and extraordinary items, net of tax effect, for the period as if the business combination or combinations had been completed at the beginning of a period.

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- Definition

The pro forma net Income or Loss for the period as if the business combination or combinations had been completed at the beginning of a period.

+ References

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-Publisher FASB

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The pro forma revenue for a period as if the business combination or combinations had been completed at the beginning of the period.

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-Publisher FASB

-Name Accounting Standards Codification

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