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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.

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- Definition

Sum of the carrying amounts as of the balance sheet date of all assets that are recognized. Assets are probable future economic benefits obtained or controlled by an entity as a result of past transactions or events.

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- Definition

The aggregate expense recognized in the current period that allocates the cost of tangible assets, intangible assets, or depleting assets to periods that benefit from use of the assets.

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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.

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- Definition

Sum of operating profit and nonoperating income or expense before Income or Loss from equity method investments, income taxes, extraordinary items, and noncontrolling interest.

+ References

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- Definition

This element represents the income or loss from continuing operations attributable to the economic entity which may also be defined as revenue less expenses and taxes from ongoing operations before extraordinary items, and noncontrolling interest.

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- Definition

Amount of current income tax expense (benefit) and deferred income tax expense (benefit) pertaining to continuing operations.

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- Definition

Amount of the cost of borrowed funds accounted for as interest expense.

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- Definition

The portion of profit or loss for the period, net of income taxes, which is attributable to the parent.

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- Definition

Amount of Net Income (Loss) attributable to noncontrolling interest.

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- Definition

Number of segments reported by the entity. A reportable segment is a component of an entity for which there is an accounting requirement to report separate financial information on that component in the entity's financial statements.

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No definition available.

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- Definition

Amount after accumulated depreciation, depletion and amortization of physical assets used in the normal conduct of business to produce goods and services and not intended for resale. Examples include, but are not limited to, land, buildings, machinery and equipment, office equipment, and furniture and fixtures.

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- Definition

Amount of revenue recognized from goods sold, services rendered, insurance premiums, or other activities that constitute an earning process. Includes, but is not limited to, investment and interest income before deduction of interest expense when recognized as a component of revenue, and sales and trading gain (loss).

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Segment information (Condensed Statements Of Comprehensive Earnings And Balance Sheets Of Reportable Segments) (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended								12 Months Ended
	Dec. 31, 2014	Sep. 30, 2014	Jun. 30, 2014	Mar. 31, 2014	Dec. 31, 2013	Sep. 30, 2013	Jun. 30, 2013	Mar. 31, 2013	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Segment Reporting Information [Line Items]
Revenues from external customers	$ 5,995us-gaap_Revenues	$ 5,336us-gaap_Revenues	$ 4,510us-gaap_Revenues	$ 3,725us-gaap_Revenues	$ 2,624us-gaap_Revenues	$ 2,714us-gaap_Revenues	$ 3,088us-gaap_Revenues	$ 1,971us-gaap_Revenues	$ 19,566us-gaap_Revenues	$ 10,397us-gaap_Revenues	$ 9,501us-gaap_Revenues
Depreciation, depletion and amortization									3,319	2,780	2,811
Asset impairments	1,900us-gaap_AssetImpairmentCharges								1,953us-gaap_AssetImpairmentCharges	1,976us-gaap_AssetImpairmentCharges	2,024us-gaap_AssetImpairmentCharges
Gains and losses on asset sales									(1,072)us-gaap_GainLossOnDispositionOfAssets1	9us-gaap_GainLossOnDispositionOfAssets1	(13)us-gaap_GainLossOnDispositionOfAssets1
Interest expense									536us-gaap_InterestExpense	437us-gaap_InterestExpense	406us-gaap_InterestExpense
Earnings (loss) before income taxes	291	1,654	1,554	560	475	639	997	(1,962)	4,059	149	(317)
Income tax expense (benefit)									2,368us-gaap_IncomeTaxExpenseBenefit	169us-gaap_IncomeTaxExpenseBenefit	(132)us-gaap_IncomeTaxExpenseBenefit
Net earnings (loss)									1,691	(20)	(185)
Net earnings (loss) attributable to noncontrolling interests									84
Net earnings (loss) attributable to Devon	(408)us-gaap_NetIncomeLoss	1,016us-gaap_NetIncomeLoss	675us-gaap_NetIncomeLoss	324us-gaap_NetIncomeLoss	207us-gaap_NetIncomeLoss	429us-gaap_NetIncomeLoss	683us-gaap_NetIncomeLoss	(1,339)us-gaap_NetIncomeLoss	1,607us-gaap_NetIncomeLoss	(20)us-gaap_NetIncomeLoss	(206)us-gaap_NetIncomeLoss
Property and equipment, net	36,296us-gaap_PropertyPlantAndEquipmentNet				28,447us-gaap_PropertyPlantAndEquipmentNet				36,296us-gaap_PropertyPlantAndEquipmentNet	28,447us-gaap_PropertyPlantAndEquipmentNet	27,316us-gaap_PropertyPlantAndEquipmentNet
Total assets	50,637us-gaap_Assets				42,877us-gaap_Assets				50,637us-gaap_Assets	42,877us-gaap_Assets	43,326us-gaap_Assets
Capital expenditures									13,559dvn_CapitalExpenditures	6,643dvn_CapitalExpenditures	8,474dvn_CapitalExpenditures
Eliminations [Member]
Segment Reporting Information [Line Items]
Interest expense									(44)	(35)	(19)
Total assets	(124)								(124)
Eliminations [Member] \| Intersegment [Member]
Segment Reporting Information [Line Items]
Revenues from external customers									(859)	(1,362)	(1,105)
United States [Member]
Segment Reporting Information [Line Items]
Number of reportable segments									1
Revenues from external customers									14,862	6,807	6,098
Depreciation, depletion and amortization									2,479	1,744	1,679
Asset impairments									12	1,133	1,845
Gains and losses on asset sales									5
Interest expense									441	392	343
Earnings (loss) before income taxes									4,388	495	(372)
Income tax expense (benefit)									1,797	258	(143)
Net earnings (loss)									2,591	237	(229)
Net earnings (loss) attributable to noncontrolling interests									1
Net earnings (loss) attributable to Devon									2,590
Property and equipment, net	24,572				18,201				24,572	18,201	16,622
Total assets	32,147				27,080				32,147	27,080	22,050
Capital expenditures									11,245	4,589	6,159
Canada [Member]
Segment Reporting Information [Line Items]
Revenues from external customers									2,063	2,656	2,600
Depreciation, depletion and amortization									560	849	987
Asset impairments									1,941	843	163
Gains and losses on asset sales									(1,077)
Interest expense									85	80	82
Earnings (loss) before income taxes									(657)	(532)	(73)
Income tax expense (benefit)									495	(156)	(35)
Net earnings (loss)									(1,152)	(376)	(38)
Net earnings (loss) attributable to Devon									(1,152)
Property and equipment, net	6,790				8,478				6,790	8,478	8,955
Total assets	8,517				13,560				8,517	13,560	19,070
Capital expenditures									1,344	1,841	1,963
EnLink [Member]
Segment Reporting Information [Line Items]
Revenues from external customers									2,641	934	803
Depreciation, depletion and amortization									280	187	145
Asset impairments											16
Interest expense									54
Earnings (loss) before income taxes									328	186	128
Income tax expense (benefit)									76	67	46
Net earnings (loss)									252	119	82
Net earnings (loss) attributable to noncontrolling interests									83
Net earnings (loss) attributable to Devon									169
Property and equipment, net	4,934				1,768				4,934	1,768	1,739
Total assets	10,097				2,237				10,097	2,237	2,206
Capital expenditures									970	213	352
EnLink [Member] \| Intersegment [Member]
Segment Reporting Information [Line Items]
Revenues from external customers									$ 859	$ 1,362	$ 1,105