XML 87 R72.htm IDEA: XBRL DOCUMENT v2.4.1.9

Asset Impairments (Summary of Asset Impairments) (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended	12 Months Ended
	Dec. 31, 2014	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Impaired Long-Lived Assets Held and Used [Line Items]
Goodwill, Impairment Loss		$ 1,941us-gaap_GoodwillImpairmentLoss	$ 0us-gaap_GoodwillImpairmentLoss	$ 0us-gaap_GoodwillImpairmentLoss
Goodwill, Impairment Loss, Net of Tax		1,941us-gaap_GoodwillImpairmentLossNetOfTax
Asset impairment charges, gross	1,900us-gaap_AssetImpairmentCharges	1,953us-gaap_AssetImpairmentCharges	1,976us-gaap_AssetImpairmentCharges	2,024us-gaap_AssetImpairmentCharges
Asset impairment charges, after taxes		1,948dvn_AssetImpairmentChargesAfterTax	1,353dvn_AssetImpairmentChargesAfterTax	1,308dvn_AssetImpairmentChargesAfterTax
U.S. Oil And Gas Assets [Member]
Impaired Long-Lived Assets Held and Used [Line Items]
Asset impairment charges, gross			1,110us-gaap_AssetImpairmentCharges / us-gaap_ImpairedLongLivedAssetsHeldAndUsedByTypeAxis = dvn_USOilAndGasAssetsMember	1,793us-gaap_AssetImpairmentCharges / us-gaap_ImpairedLongLivedAssetsHeldAndUsedByTypeAxis = dvn_USOilAndGasAssetsMember
Asset impairment charges, after taxes			707dvn_AssetImpairmentChargesAfterTax / us-gaap_ImpairedLongLivedAssetsHeldAndUsedByTypeAxis = dvn_USOilAndGasAssetsMember	1,142dvn_AssetImpairmentChargesAfterTax / us-gaap_ImpairedLongLivedAssetsHeldAndUsedByTypeAxis = dvn_USOilAndGasAssetsMember
Canada Oil And Gas Assets [Member]
Impaired Long-Lived Assets Held and Used [Line Items]
Asset impairment charges, gross			843us-gaap_AssetImpairmentCharges / us-gaap_ImpairedLongLivedAssetsHeldAndUsedByTypeAxis = dvn_CanadaOilAndGasAssetsMember	163us-gaap_AssetImpairmentCharges / us-gaap_ImpairedLongLivedAssetsHeldAndUsedByTypeAxis = dvn_CanadaOilAndGasAssetsMember
Asset impairment charges, after taxes			632dvn_AssetImpairmentChargesAfterTax / us-gaap_ImpairedLongLivedAssetsHeldAndUsedByTypeAxis = dvn_CanadaOilAndGasAssetsMember	122dvn_AssetImpairmentChargesAfterTax / us-gaap_ImpairedLongLivedAssetsHeldAndUsedByTypeAxis = dvn_CanadaOilAndGasAssetsMember
Midstream Assets [Member]
Impaired Long-Lived Assets Held and Used [Line Items]
Asset impairment charges, gross		12us-gaap_AssetImpairmentCharges / us-gaap_ImpairedLongLivedAssetsHeldAndUsedByTypeAxis = dvn_MidstreamAssetsMember	23us-gaap_AssetImpairmentCharges / us-gaap_ImpairedLongLivedAssetsHeldAndUsedByTypeAxis = dvn_MidstreamAssetsMember	68us-gaap_AssetImpairmentCharges / us-gaap_ImpairedLongLivedAssetsHeldAndUsedByTypeAxis = dvn_MidstreamAssetsMember
Asset impairment charges, after taxes		$ 7dvn_AssetImpairmentChargesAfterTax / us-gaap_ImpairedLongLivedAssetsHeldAndUsedByTypeAxis = dvn_MidstreamAssetsMember	$ 14dvn_AssetImpairmentChargesAfterTax / us-gaap_ImpairedLongLivedAssetsHeldAndUsedByTypeAxis = dvn_MidstreamAssetsMember	$ 44dvn_AssetImpairmentChargesAfterTax / us-gaap_ImpairedLongLivedAssetsHeldAndUsedByTypeAxis = dvn_MidstreamAssetsMember

X

- Definition

Asset impairment charges after tax.

+ References

No definition available.

+ Details

Name:	dvn_AssetImpairmentChargesAfterTax
Namespace Prefix:	dvn_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

X

- 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

Name:	us-gaap_AssetImpairmentCharges
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

X

- Definition

Amount of loss from the write-down of an asset representing the future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized.

+ 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 350

-SubTopic 20

-Section 50

-Paragraph 2

-Subparagraph (b)

-URI http://asc.fasb.org/extlink&oid=35741047&loc=d3e13854-109267



Reference 3: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 350

-SubTopic 20

-Section 45

-Paragraph 2

-URI http://asc.fasb.org/extlink&oid=6388280&loc=d3e13777-109266



Reference 4: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 350

-SubTopic 20

-Section 50

-Paragraph 1

-Subparagraph (e)

-URI http://asc.fasb.org/extlink&oid=35741047&loc=d3e13816-109267

+ Details

Name:	us-gaap_GoodwillImpairmentLoss
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

X

- Definition

Amount after tax of loss recognized that results from the write-down of an asset representing the future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized.

+ References

No definition available.

+ Details

Name:	us-gaap_GoodwillImpairmentLossNetOfTax
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

X

- Details

Name:	us-gaap_ImpairedLongLivedAssetsHeldAndUsedLineItems
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

X

- Details

Name:	us-gaap_ImpairedLongLivedAssetsHeldAndUsedByTypeAxis=dvn_CanadaOilAndGasAssetsMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_ImpairedLongLivedAssetsHeldAndUsedByTypeAxis=dvn_MidstreamAssetsMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_ImpairedLongLivedAssetsHeldAndUsedByTypeAxis=dvn_USOilAndGasAssetsMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type: