Devon Energy (DVN) 10-Q 5 Nov 14 2014 Q3 Quarterly report Financial data

Document_And_Entity_Informatio

Document And Entity Information	9 Months Ended
In Millions, unless otherwise specified	Sep. 30, 2014	Oct. 22, 2014
Document And Entity Information [Abstract]	'	'
Document Type	'10-Q	'
Document Period End Date	30-Sep-14	'
Amendment Flag	'false	'
Entity Registrant Name	'DEVON ENERGY CORP/DE	'
Entity Central Index Key	'0001090012	'
Current Fiscal Year End Date	'--12-31	'
Document Fiscal Year Focus	'2014	'
Entity Filer Category	'Large Accelerated Filer	'
Document Fiscal Period Focus	'Q3	'
Entity Common Stock, Shares Outstanding	'	409.1

Consolidated_Comprehensive_Sta

Consolidated Comprehensive Statements Of Earnings (USD $)	3 Months Ended		9 Months Ended
In Millions, except Per Share data, unless otherwise specified	Sep. 30, 2014	Sep. 30, 2013	Sep. 30, 2014	Sep. 30, 2013
Consolidated Comprehensive Statements Of Earnings [Abstract]	'	'	'	'
Oil, gas and NGL sales	$2,588	$2,341	$7,824	$6,367
Oil, gas and NGL derivatives	748	-141	29	-95
Marketing and midstream revenues	2,000	514	5,718	1,501
Total operating revenues	5,336	2,714	13,571	7,773
Lease operating expenses	584	600	1,764	1,684
Marketing and midstream operating expenses	1,781	383	5,092	1,128
General and administrative expenses	195	143	595	460
Production and property taxes	140	115	427	353
Depreciation, depletion and amortization	842	691	2,409	2,069
Asset impairments	'	7	'	1,960
Restructuring costs	2	4	44	50
Gains and losses on asset sales	'	11	-1,072	11
Other operating items	18	27	74	82
Total operating expenses	3,562	1,981	9,333	7,797
Operating income (loss)	1,774	733	4,238	-24
Net financing costs	116	100	359	306
Other nonoperating items	4	-6	111	-4
Earnings (loss) before income taxes	1,654	639	3,768	-326
Income tax expense (benefit)	613	210	1,698	-99
Net earnings (loss)	1,041	429	2,070	-227
Net earnings attributable to noncontrolling interests	25	'	55	'
Net earnings (loss) attributable to Devon	1,016	429	2,015	-227
Net earnings (loss) per share attributable to Devon:	'	'	'	'
Basic	$2.48	$1.06	$4.94	($0.57)
Diluted	$2.47	$1.05	$4.91	($0.57)
Comprehensive earnings (loss):	'	'	'	'
Net earnings (loss)	1,041	429	2,070	-227
Other comprehensive earnings (loss), net of tax:	'	'	'	'
Foreign currency translation	-279	173	-285	-281
Pension and postretirement plans	2	3	10	12
Other comprehensive earnings (loss), net of tax	-277	176	-275	-269
Comprehensive earnings (loss)	764	605	1,795	-496
Comprehensive earnings attributable to noncontrolling interests	25	'	55	'
Comprehensive earnings (loss) attributable to Devon	$739	$605	$1,740	($496)

Consolidated_Statements_Of_Cas

Consolidated Statements Of Cash Flows (USD $)	9 Months Ended
In Millions, unless otherwise specified	Sep. 30, 2014	Sep. 30, 2013
Cash flows from operating activities:	'	'
Net earnings (loss)	$2,070	($227)
Adjustments to reconcile net earnings (loss) to net cash from operating activities:	'	'
Depreciation, depletion and amortization	2,409	2,069
Gains and losses on asset sales	-1,072	11
Asset impairments	'	1,960
Deferred income tax expense (benefit)	800	-181
Derivatives and other financial instruments	-43	65
Cash settlements on derivatives and financial instruments	-201	147
Other noncash charges	357	195
Net change in working capital	766	-104
Change in long-term other assets	-115	-28
Change in long-term other liabilities	47	92
Net cash from operating activities	5,018	3,999
Cash flows from investing activities:	'	'
Acquisitions of property, equipment and businesses	-6,255	'
Capital expenditures	-5,013	-5,219
Proceeds from property and equipment divestitures	5,202	316
Purchases of short-term investments	'	-1,076
Redemptions of short-term investments	'	3,419
Redemptions of long-term investments	57	'
Other	87	83
Net cash from investing activities	-5,922	-2,477
Cash flows from financing activities:	'	'
Proceeds from borrowings of long-term debt, net of issuance costs	4,158	'
Net short-term debt repayments	-1,318	-1,577
Long-term debt repayments	-4,265	'
Proceeds from stock option exercises	92	1
Proceeds from issuance of subsidiary units	72	'
Dividends paid on common stock	-287	-259
Distributions to noncontrolling interests	-187	'
Other	-4	5
Net cash from financing activities	-1,739	-1,830
Effect of exchange rate changes on cash	-15	-9
Net change in cash and cash equivalents	-2,658	-317
Cash and cash equivalents at beginning of period	6,066	4,637
Cash and cash equivalents at end of period	$3,408	$4,320

Consolidated_Balance_Sheets

Consolidated Balance Sheets (USD $)	Sep. 30, 2014		Dec. 31, 2013
In Millions, unless otherwise specified
Current assets:	'		'
Cash and cash equivalents	$3,408		$6,066
Accounts receivable	2,009		1,520
Other current assets	556		419
Total current assets	5,973		8,005
Oil and gas, based on full-cost accounting:	'		'
Subject to amortization	73,733		73,995
Not subject to amortization	3,642		2,791
Total oil and gas	77,375		76,786
Other	9,204		6,195
Total property and equipment, at cost	86,579		82,981
Less accumulated depreciation, depletion and amortization	-51,410		-54,534
Property and equipment, net	35,169		28,447
Goodwill	8,310		5,858
Other long-term assets	1,387		567
Total assets	50,839		42,877
Current liabilities:	'		'
Accounts payable	1,344		1,229
Revenues and royalties payable	1,455		786
Short-term debt	1,898	[1]	4,066	[1]
Income taxes payable	651		1
Other current liabilities	646		573
Total current liabilities	5,994		6,655
Long-term debt	10,161		7,956
Asset retirement obligations	1,348		2,140
Other long-term liabilities	926		834
Deferred income taxes	5,642		4,793
Stockholders' equity:	'		'
Common stock, $0.10 par value. Authorized 1.0 billion shares; issued 409 million and 406 million shares in 2014 and 2013, respectively	41		41
Additional paid-in capital	4,004		3,780
Retained earnings	17,138		15,410
Accumulated other comprehensive earnings	993		1,268
Total stockholders' equity attributable to Devon	22,176		20,499
Noncontrolling interests	4,592		'
Total stockholders' equity	26,768		20,499
Commitments and contingencies (Note 17)	'		'
Total liabilities and stockholders' equity	$50,839		$42,877
[1]	Short-term debt as of September 30, 2014 consists of $1.9 billion of senior notes that Devon intends to redeem in the fourth quarter of 2014 prior to their scheduled maturity date. The redemption includes the 2.4% $500 million senior note due 2016, the 1.2% $650 million senior note due 2016 and the 1.875% $750 million senior note due 2017 plus unpaid interest and a make-whole premium. The debt will be repaid with funds received as part of the divestiture program discussed in Note 2.Short-term debt as of December 31, 2013 consists of $2.25 billion of senior notes issued in conjunction with the GeoSouthern acquisition, $1.3 billion of commercial paper and $500 million of senior notes due January 15, 2014. Subsequent to the close of the GeoSouthern acquisition the $2.25 billion of senior notes were reclassified to long-term debt.

Consolidated_Balance_Sheets_Pa

Consolidated Balance Sheets (Parenthetical) (USD $)	Sep. 30, 2014	Dec. 31, 2013
Consolidated Balance Sheets [Abstract]	'	'
Common stock, par value (in dollars per share)	$0.10	$0.10
Common stock, shares authorized (in shares)	1,000,000,000	1,000,000,000
Common stock, shares issued (in shares)	409,000,000	406,000,000

Consolidated_Statements_Of_Sto

Consolidated Statements Of Stockholders' Equity (USD $)	Common Stock [Member]	Additional Paid-In Capital [Member]	Retained Earnings [Member]	Accumulated Other Comprehensive Earnings [Member]	Treasury Stock [Member]	Noncontrolling Interests [Member]	Total
In Millions
Balance, at Dec. 31, 2012	$41	$3,688	$15,778	$1,771	'	'	$21,278
Balance, shares, at Dec. 31, 2012	406	'	'	'	'	'	'
Net earnings (loss)	'	'	-227	'	'	'	-227
Other comprehensive loss, net of tax	'	'	'	-269	'	'	-269
Stock option exercises	'	1	'	'	'	'	1
Common stock repurchased	'	'	'	'	-9	'	-9
Common stock retired	'	-9	'	'	9	'	'
Common stock dividends	'	'	-259	'	'	'	-259
Share-based compensation	'	92	'	'	'	'	92
Share-based compensation tax benefits	'	5	'	'	'	'	5
Balance, at Sep. 30, 2013	41	3,777	15,292	1,502	'	'	20,612
Balance, shares, at Sep. 30, 2013	406	'	'	'	'	'	'
Balance, at Dec. 31, 2013	41	3,780	15,410	1,268	'	'	20,499
Balance, shares, at Dec. 31, 2013	406	'	'	'	'	'	'
Net earnings (loss)	'	'	2,015	'	'	55	2,070
Other comprehensive loss, net of tax	'	'	'	-275	'	'	-275
Stock option exercises	'	92	'	'	'	'	92
Stock option exercises, shares	1	'	'	'	'	'	'
Restricted stock grants, net of cancellations, shares	2	'	'	'	'	'	'
Common stock repurchased	'	'	'	'	-6	'	-6
Common stock retired	'	-6	'	'	6	'	'
Common stock dividends	'	'	-287	'	'	'	-287
Share-based compensation	'	120	'	'	'	'	120
Share-based compensation tax benefits	'	1	'	'	'	'	1
Acquistion of noncontrolling interests	'	'	'	'	'	4,664	4,664
Subsidiary equity transactions	'	17	'	'	'	55	72
Distributions to noncontrolling interests	'	'	'	'	'	-187	-187
Other	'	'	'	'	'	5	5
Balance, at Sep. 30, 2014	$41	$4,004	$17,138	$993	'	$4,592	$26,768
Balance, shares, at Sep. 30, 2014	409	'	'	'	'	'	'

Summary_Of_Significant_Account

Summary Of Significant Accounting Policies	9 Months Ended
	Sep. 30, 2014
Summary Of Significant Accounting Policies [Abstract]	'
Summary Of Significant Accounting Policies	'
	1.     Summary of Significant Accounting Policies
	The accompanying unaudited financial statements and notes of Devon Energy Corporation (“Devon”) have been prepared pursuant to the rules and regulations of the United States Securities and Exchange Commission. Pursuant to such rules and regulations, certain disclosures normally included in financial statements prepared in accordance with accounting principles generally accepted in the United States of America (“U.S.”) have been omitted. The accompanying financial statements and notes should be read in conjunction with the financial statements and notes included in Devon's 2013 Annual Report on Form 10-K.
	The accompanying unaudited interim financial statements furnished in this report reflect all adjustments that are, in the opinion of management, necessary for a fair statement of Devon's results of operations and cash flows for the three-month and nine-month periods ended September 30, 2014 and 2013 and Devon's financial position as of September 30, 2014.
	Basis of Presentation
	The accompanying consolidated financial statements include the accounts of Devon and entities in which it holds a controlling interest. All intercompany transactions have been eliminated. Undivided interests in oil and natural gas exploration and production joint ventures are consolidated on a proportionate basis. Investments in non-controlled entities, over which Devon has the ability to exercise significant influence over operating and financial policies, are accounted for using the equity method. In applying the equity method of accounting, the investments are initially recognized at cost and subsequently adjusted for Devon’s proportionate share of earnings, losses and distributions. Investments accounted for using the equity method and cost method are reported as a component of other long-term assets.
	As discussed more fully in Note 2, on March 7, 2014, Devon completed a business combination whereby Devon controls both EnLink Midstream Partners, LP (the “Partnership”) and its general partner entity, EnLink Midstream, LLC (“EnLink”). Devon controls both the Partnership’s and EnLink’s operations; therefore, the Partnership’s and EnLink’s accounts are included in Devon’s accompanying consolidated financial statements subsequent to the completion of the transaction. The portions of the Partnership’s and EnLink’s net earnings and stockholders’ equity not attributable to Devon’s controlling interest are shown separately as noncontrolling interests in the accompanying consolidated comprehensive statements of earnings and consolidated balance sheets.
	Intangible Assets
	EnLink’s long-term assets include intangible assets, consisting of customer relationships. These assets are amortized on a straight-line basis over the expected periods of benefits, which range from ten to twenty years.
	Recently Issued Accounting Standards Not Yet Adopted
	In May 2014, the FASB issued Accounting Standards Update 2014-09, Revenue from Contracts with Customers (Topic 606). The update provides guidance concerning the recognition and measurement of revenue from contracts with customers.  Its objective is to increase the usefulness of information in the financial statements regarding the nature, timing and uncertainty of revenues. The update is effective for Devon beginning on January 1, 2017. The standard permits the use of either the retrospective or cumulative effect transition method. Devon has not yet selected a transition method and is evaluating the impact this standard will have on its consolidated financial statements and related disclosures.

Acquisitions_And_Divestitures

Acquisitions And Divestitures	9 Months Ended
	Sep. 30, 2014
Acquisitions And Divestitures [Abstract]	'
Acquisitions And Divestitures	'
	2.    Acquisitions and Divestitures
	Formation of EnLink Midstream, LLC and EnLink Midstream Partners, LP
	On March 7, 2014, Devon, Crosstex Energy, Inc. and Crosstex Energy, LP (together with Crosstex Energy, Inc., “Crosstex”) completed a business combination to combine substantially all of Devon’s U.S. midstream assets with Crosstex’s assets to form a new midstream business. The new business consists of the Partnership and EnLink, a master limited partnership and a general partner entity, respectively, which are both publicly traded entities.
	In exchange for a controlling interest in both EnLink and the Partnership, Devon contributed its equity interest in a newly formed Devon subsidiary, EnLink Midstream Holdings, LP (“EnLink Holdings”) and $100 million in cash. EnLink Holdings owns Devon’s midstream assets in the Barnett Shale in north Texas and the Cana and Arkoma Woodford Shales in Oklahoma, as well as Devon’s economic interest in Gulf Coast Fractionators in Mt. Belvieu, Texas. The Partnership and EnLink each own 50 percent of EnLink Holdings.
	The ownership of EnLink is approximately:
		•		70% - Devon
		•		30% - Public unitholders
	The ownership of the Partnership is approximately:
		•		52% - Devon
		•		41% - Public unitholders
		•		7% - EnLink
	This business combination was accounted for using the acquisition method of accounting. Under the acquisition method of accounting, EnLink Holdings was the accounting acquirer because its parent company, Devon, obtained control of EnLink and the Partnership as a result of the business combination. Consequently, EnLink Holdings’ assets and liabilities retained their carrying values. Additionally, the Crosstex assets acquired and liabilities assumed by the Partnership and EnLink in the business combination, as well as EnLink’s noncontrolling interest in the Partnership, were recorded at their fair values which were measured as of the acquisition date, March 7, 2014. The excess of the purchase price over the estimated fair values of Crosstex’s net assets acquired was recorded as goodwill.
	The following table summarizes the purchase price (in millions, except unit price).
	Crosstex Energy, Inc. outstanding common shares:
	Held by public shareholders			48.0
	Restricted shares			0.4
	Total subject to conversion			48.4
	Exchange ratio			1.0	x
	Converted shares			48.4
	Crosstex Energy, Inc. common share price (1)		$	37.60
	Crosstex Energy, Inc. consideration		$	1,823
	Fair value of noncontrolling interests in E2 (2)		$	12
	Total Crosstex Energy, Inc. consideration and fair value of noncontrolling interests		$	1,835
	Partnership outstanding units:
	Common units held by public unitholders			75.1
	Preferred units held by third party (3)			17.1
	Restricted units			0.4
	Total			92.6
	Partnership common unit price (4)		$	30.51
	Partnership common units value		$	2,825
	Partnership outstanding unit options value		$	4
	Total fair value of noncontrolling interests in the Partnership (4)		$	2,829
	Total consideration and fair value of noncontrolling interests		$	4,664
	__________________________
	(1) The final purchase price is based on the fair value of Crosstex Energy Inc.’s common shares as of the closing date, March 7, 2014.
	(2) Represents the value of noncontrolling interests related to EnLink’s equity investment in E2 Energy Services, LLC and E2 Appalachian Compression, LLC (collectively “E2”).
	(3) The Partnership converted the preferred units to common units in February 2014.
	(4) The final purchase price is based on the fair value of the Partnership’s common shares as of the closing date, March 7, 2014.
	The preliminary allocation of the purchase price is as follows (in millions):
	Assets acquired:
	Current assets		$	438
	Property, plant and equipment, net			2,438
	Intangible assets			547
	Equity investment			222
	Goodwill (1)			3,292
	Other long term assets			1
	Liabilities assumed:
	Current liabilities			-516
	Long-term debt			-1,454
	Deferred income taxes			-203
	Other long-term liabilities			-101
	Total consideration and fair value of noncontrolling interests		$	4,664
	__________________________
	(1)  Goodwill is the excess of the consideration transferred over the net assets recognized and represents the future economic benefits arising from other assets acquired that could not be individually identified and separately recognized. Goodwill is not amortized and is not deductible for tax purposes.
	GeoSouthern Energy Acquisition
	On November 20, 2013, Devon entered into a Purchase and Sale Agreement with GeoSouthern Energy Corporation (“GeoSouthern”) and a wholly owned subsidiary of GeoSouthern to acquire GeoSouthern’s interests in certain affiliates (the “Acquired Companies”) that own certain oil and gas properties, leasehold mineral interest and related assets located in the Eagle Ford Shale. On February 28, 2014, the GeoSouthern acquisition closed, and GeoSouthern transferred the Acquired Companies to Devon in exchange for the aggregate purchase price of approximately $6.0 billion. Devon funded the acquisition price with cash on hand and debt financing. In connection with the GeoSouthern acquisition, Devon acquired approximately 82,000 net acres located in DeWitt and Lavaca counties in south Texas. The transaction was accounted for using the acquisition method, which requires, among other things, that assets acquired and liabilities assumed be recognized at their fair values as of the acquisition date. The following table summarizes the preliminary allocation of the purchase price to the assets acquired and liabilities assumed in the transaction (in millions).
	Cash and cash equivalents		$	95
	Other current assets			256
	Proved properties			5,029
	Unproved properties			1,008
	Midstream assets			85
	Current liabilities			-437
	Long-term liabilities			-6
Net assets acquired		$	6,030
EnLink and GeoSouthern Operating Results
The following table presents EnLink’s (acquired Crosstex operations) and GeoSouthern’s operating revenues and net earnings included in Devon’s consolidated statements of earnings subsequent to the transactions described above.
		Three Months Ended September 30, 2014					Nine Months Ended September 30, 2014
		GeoSouthern			EnLink		GeoSouthern		EnLink
		(In millions)					(In millions)
Total operating revenues		$	634		$	700	$	1,374	$	1,670
Total operating expenses			322			692		708		1,654
Operating income		$	312		$	8	$	666	$	16
Pro Forma Financial Information
The following unaudited pro forma financial information has been prepared assuming both the EnLink formation and the GeoSouthern acquisition occurred on January 1, 2013. The pro forma information is not intended to reflect the actual results of operations that would have occurred if the business combination and acquisition had been completed at the dates indicated. In addition, they do not project Devon’s results of operations for any future period.
		Nine Months Ended September 30,
		2014			2013
		(In millions)
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
Partnership Acquisitions and Dropdowns
Effective November 1, 2014, the Partnership acquired Gulf Coast natural pipeline assets predominantly located in southern Louisiana for $235 million, subject to certain adjustments. Furthermore, in October 2014, the Partnership acquired equity interests in E2 Appalachian Compression, LLC and E2 Energy Services, LLC (together “E2”) from EnLink. The total consideration for the transaction was approximately $193 million, including a $163 million cash payment and 1.0 million Partnership units valued at $30 million based on the fair value of the Partnership’s units as of the closing date of the transaction.
Non-Core Asset Divestitures
In November 2013, Devon announced plans to divest certain non-core properties located throughout Canada and the U.S.
Canada
In the first quarter of 2014, Devon completed minor divestiture transactions for $142 million ($155 million Canadian dollars). In the second quarter of 2014, Devon sold conventional assets to Canadian Natural Resources Limited for $2.8 billion ($3.125 billion Canadian dollars).
Under full-cost accounting rules, sales or dispositions of oil and gas properties are generally accounted for as adjustments to capitalized costs, with no recognition of gain or loss. However, if not recognizing a gain or loss on the disposition would otherwise significantly alter the relationship between a cost center’s capitalized costs and proved reserves, then a gain or loss must be recognized. The Canadian divestitures significantly altered such relationship. Therefore, Devon recognized gains totaling $1.1 billion ($0.6 billion after-tax) in 2014 associated with these transactions.  These gains are included as a separate item in the accompanying consolidated comprehensive statements of earnings.
Included in the gain calculation noted above were asset retirement obligations of approximately $700 million assumed by the purchaser as well as the derecognition of approximately $700 million of goodwill allocated to the sold assets.
In conjunction with the divestitures noted above, Devon repatriated approximately $2.8 billion of proceeds to the U.S. in the second quarter of 2014.  The proceeds were used to repay $0.7 billion of commercial paper and the $2.0 billion term loans that were drawn in the first quarter of 2014 to fund a portion of the GeoSouthern acquisition. Between collecting the divestiture proceeds and repatriating funds to the U.S., Devon recognized an $84 million foreign currency exchange loss and a $29 million foreign currency derivative loss. These losses are included in other nonoperating items in the accompanying consolidated comprehensive statements of earnings.
U.S.
On August 29, 2014, Devon sold its U.S. non-core assets to LINN Energy for $2.3 billion ($1.7 billion after-tax proceeds). Additionally, approximately $200 million of asset retirement obligations were assumed by LINN Energy. No gain or loss was recognized on the sale.

Derivative_Financial_Instrumen

Derivative Financial Instruments	9 Months Ended
	Sep. 30, 2014
Derivative Financial Instruments [Abstract]	'
Derivative Financial Instruments	'
	3.     Derivative Financial Instruments
	Objectives and Strategies
	Devon periodically enters into derivative financial instruments with respect to a portion of its oil, gas and NGL production. These instruments are used to manage the inherent uncertainty of future revenues due to commodity price volatility and typically include financial price swaps, basis swaps, costless price collars and call options. Devon periodically enters into interest rate swaps to manage its exposure to interest rate volatility. Devon periodically enters into foreign exchange forward contracts to manage its exposure to fluctuations in exchange rates. Additionally, EnLink manages its exposure to fluctuations in commodity prices by hedging the impact of market fluctuations.
	Devon does not intend to hold or issue derivative financial instruments for speculative trading purposes and has elected not to designate any of its derivative instruments for hedge accounting treatment.
	Counterparty Credit Risk
	By using derivative financial instruments, Devon is exposed to credit risk. Credit risk is the failure of the counterparty to perform under the terms of the derivative contract. To mitigate this risk, the hedging instruments are placed with a number of counterparties whom Devon believes are acceptable credit risks. It is Devon's policy to enter into derivative contracts only with investment grade rated counterparties deemed by management to be competent and competitive market makers. Additionally, Devon's derivative contracts contain provisions that provide for collateral payments, depending on levels of exposure and the credit rating of the counterparty.
	As of September 30, 2014, Devon held $31 million of cash collateral which represented the estimated fair value of certain derivative positions in excess of Devon’s credit guidelines. The collateral is reported in other current liabilities in the accompanying balance sheet.
	Commodity Derivatives
	As of September 30, 2014, Devon had the following open oil derivative positions. The first table presents Devon’s oil derivatives that settle against the average of the prompt month NYMEX West Texas Intermediate futures price. The second table presents Devon’s oil derivatives that settle against the Western Canadian Select index.
			Price Swaps					Price Collars								Call Options Sold
	Period		Volume (Bbls/d)		Weighted Average Price ($/Bbl)			Volume (Bbls/d)		Weighted Average Floor Price ($/Bbl)			Weighted Average Ceiling Price ($/Bbl)			Volume (Bbls/d)	Weighted Average Price ($/Bbl)
	Q4 2014		75,000		$	94.14		64,750		$	89.33		$	100		42,000	$	116.43
	Q1-Q4 2015		106,736		$	91.22		31,500		$	89.67		$	97.84		28,000	$	116.43
	Q1-Q4 2016		—		$	—		—		$	—		$	—		18,500	$	103.11
			Oil Basis Swaps
	Period		Index		Volume (Bbls/d)		Weighted Average Differential to WTI ($/Bbl)
	Q4 2014		Western Canadian Select		50,000		$	-17.4
	Q1-Q4 2015		Western Canadian Select		14,890		$	-18.92
	As of September 30, 2014, Devon had the following open natural gas derivative positions. The first table presents Devon’s natural gas derivatives that settle against the Inside FERC first of the month Henry Hub index. The second table presents Devon’s natural gas derivatives that settle against the AECO and PEPL indices.
			Price Swaps					Price Collars								Call Options Sold
	Period		Volume (MMBtu/d)		Weighted Average Price ($/MMBtu)			Volume (MMBtu/d)		Weighted Average Floor Price ($/MMBtu)			Weighted Average Ceiling Price ($/MMBtu)			Volume (MMBtu/d)	Weighted Average Price ($/MMBtu)
	Q4 2014		800,000		$	4.42		460,000		$	4.03		$	4.51		500,000	$	5
	Q1-Q4 2015		210,000		$	4.38		260,000		$	4.05		$	4.36		550,000	$	5.09
	Q1-Q4 2016		—		$	—		—		$	—		$	—		400,000	$	5
			Natural Gas Basis Swaps
	Period		Index		Volume (MMBtu/d)		Weighted Average Differential to Henry Hub ($/MMBtu)
	Q4 2014		AECO		94,781		$	-0.52
	Q1-Q4 2015		PEPL		100,000		$	-0.28
	Interest Rate Derivatives
	As of September 30, 2014, Devon had the following open interest rate derivative positions:
	Notional			Rate Received		Rate Paid		Expiration
	(In millions)
	$	100		Three Month LIBOR		0.92%		Dec-16
	$	100		1.76%		Three Month LIBOR		Jan-19
	Foreign Currency Derivatives
	As of September 30, 2014, Devon had the following open foreign currency derivative positions:
	Forward Contract
	Currency		Contract Type		CAD Notional			Weighted Average Fixed Rate Received		Expiration
					(In millions)			(CAD-USD)
	Canadian Dollar		Sell		$	1,312		0.899		Dec-14
	Financial Statement Presentation
	The following table presents the net gains and losses recognized in the accompanying comprehensive statements of earnings associated with derivative financial instruments.
			Comprehensive Statements of		Three Months Ended						Nine Months Ended
					September 30,						September 30,
			Earnings Caption		2014			2013			2014			2013
					(In millions)
	Commodity derivatives		Oil, gas and NGL derivatives		$	748		$	-141		$	29		$	-95
	EnLink commodity derivatives		Marketing and midstream revenues			1			—			-2			—
	Interest rate derivatives		Other nonoperating items			—			1			1			1
	Foreign currency derivatives		Other nonoperating items			55			-28			15			29
	Net gains (losses) recognized in comprehensive statements of earnings				$	804		$	-168		$	43		$	-65
	The following table presents the derivative fair values included in the accompanying balance sheets.
			Balance Sheet Caption		30-Sep-14			31-Dec-13
					(In millions)
	Asset derivatives:
	Commodity derivatives		Other current assets		$	231		$	75
	Commodity derivatives		Other long-term assets			66			28
	EnLink commodity derivatives		Other current assets			1			—
	Interest rate derivatives		Other current assets			1			—
	Foreign currency derivatives		Other current assets			11			—
	Total asset derivatives				$	310		$	103
	Liability derivatives:
	Commodity derivatives		Other current liabilities		$	30		$	58
Commodity derivatives		Other long-term liabilities			50			62
EnLink commodity derivatives		Other current liabilities			1			—
EnLink commodity derivatives		Other long-term liabilities			1			—
Interest rate derivatives		Other current liabilities			1			—
Interest rate derivatives		Other long-term liabilities			1			—
Foreign currency derivatives		Other current liabilities			—			1
Total liability derivatives				$	84		$	121

ShareBased_Compensation

Share-Based Compensation	9 Months Ended
	Sep. 30, 2014
Share-based Compensation [Abstract]	'
Share-Based Compensation	'
	4.     Share-Based Compensation
	The following table presents the effects of share-based compensation included in Devon’s accompanying comprehensive statements of earnings. Devon’s gross general and administrative expense for the first nine months of 2014 includes $11 million of unit-based compensation related to grants made under EnLink’s long-term incentive plans.
	The vesting for certain share-based awards was accelerated in the first quarter of 2014 in conjunction with the divestiture of Devon’s Canadian conventional assets. The associated expense for these accelerated awards is included in restructuring costs in the accompanying comprehensive statements of earnings. See Note 6 for further details.
			Nine Months Ended September 30,
			2014			2013
			(In millions)
	Gross general and administrative expense		$	155		$	118
	Share-based compensation expense capitalized pursuant to the
	full-cost method of accounting for oil and gas properties		$	40		$	44
	Related income tax benefit		$	20		$	17
	Under its 2009 Long-Term Incentive Plan, as amended, Devon granted share-based awards to certain employees in the first nine months of 2014. The following sections include information related to these awards.
	Restricted Stock Awards and Units
	The following table presents a summary of Devon's unvested restricted stock awards and units.
				Restricted Stock Award & Units		Weighted Average Grant-Date Fair Value
				(In thousands)
	Unvested at December 31, 2013			3,292		$	59.76
	Granted			3,412		$	63.53
	Vested			-558		$	60.65
	Forfeited			-607		$	60.96
	Unvested at September 30, 2014			5,539		$	61.73
	As of September 30, 2014, Devon's unrecognized compensation cost related to unvested restricted stock awards and units was $225 million. Such cost is expected to be recognized over a weighted-average period of 2.4 years.
	Performance Based Restricted Stock Awards
	The following table presents a summary of Devon's performance based restricted stock awards.
				Performance Restricted Stock Awards		Weighted Average Grant-Date Fair Value
				(In thousands)
	Unvested at December 31, 2013			316		$	56.25
	Granted			234		$	61.33
	Vested			-75		$	53.45
	Unvested at September 30, 2014			475		$	59.20
	As of September 30, 2014, Devon's unrecognized compensation cost related to these awards was $7 million. Such cost is expected to be recognized over a weighted-average period of 1.4 years.
	Performance Share Units
	The following table presents a summary of the grant-date fair values of performance share units granted in 2014 and the related assumptions.
		2014
	Grant-date fair value	$	70.18	-	$	81.05
	Risk-free interest rate					0.54%
	Volatility factor					28.8%
	Contractual term (in years)					2.89
	The following table presents a summary of Devon’s performance share units.
				Performance Share Units		Weighted Average Grant-Date Fair Value
				(In thousands)
	Unvested at December 31, 2013			925		$	66.64
	Granted			708		$	77.77
	Forfeited			-147		$	77.25
	Unvested at September 30, 2014 (1)			1,486		$	70.89
	____________________________
		-1		A maximum of 3.0 million common shares could be awarded based upon Devon’s final total shareholder return ranking.
	As of September 30, 2014, Devon's unrecognized compensation cost related to unvested units was $40 million. Such cost is expected to be recognized over a weighted-average period of 1.6 years.

Asset_Impairments

Asset Impairments	9 Months Ended
	Sep. 30, 2014
Asset Impairments [Abstract]	'
Asset Impairments	'
	5.     Asset Impairments
	In the first nine months of 2013, Devon recognized asset impairments related to its oil and gas property and equipment as presented below.
		Nine Months Ended September 30, 2013
		Gross		Net of Taxes
			(In millions)
	U.S. oil and gas assets	$	1,110	$	707
	Canada oil and gas assets		843		632
	Midstream assets		7		4
	Total asset impairments	$	1,960	$	1,343
	Oil and Gas Impairments
	Under the full-cost method of accounting, capitalized costs of oil and gas properties, net of accumulated DD&A and deferred income taxes, may not exceed the full-cost “ceiling” at the end of each quarter. The ceiling is calculated separately for each country and is based on the present value of estimated future net cash flows from proved oil and gas reserves, discounted at 10 percent per annum, net of related tax effects. Estimated future net cash flows are calculated using end-of-period costs and an unweighted arithmetic average of commodity prices in effect on the first day of each of the previous 12 months.
	The oil and gas impairments resulted primarily from declines in the U.S. and Canada full-cost ceilings. The lower ceiling values resulted primarily from decreases in the 12-month average trailing prices for oil, bitumen and NGLs, which reduced proved reserve values.
	Midstream Impairments
	In the third quarter of 2013, Devon determined that the carrying amounts of certain midstream facilities located in south and east Texas were not recoverable from estimated future cash flows due to declining natural gas production. Consequently, the assets were written down to their estimated fair values, which were determined using discounted cash flow models. The fair value of Devon’s midstream assets is considered a Level 3 fair value measurement.

Restructuring_Costs

Restructuring Costs	9 Months Ended
	Sep. 30, 2014
Restructuring Costs [Abstract]	'
Restructuring Costs	'
	6.     Restructuring Costs
	Canadian Divestitures
	In the first nine months of 2014, Devon recognized $44 million of employee related and other costs associated with its Canadian non-core asset divestitures. Approximately $15 million of the employee related costs resulted from accelerated vesting of share-based grants, which are non-cash charges.
	Office Consolidation
	In October 2012, Devon announced plans to consolidate its U.S. personnel into a single operations group centrally located at the company’s headquarters in Oklahoma City. As of December 31, 2013, Devon had completed this initiative and incurred $134 million of restructuring costs associated with the office consolidation.
	Financial Statement Presentation
	The schedule below summarizes restructuring costs presented in the accompanying comprehensive statements of earnings related to the Canadian divestitures and office consolidation.
		Three Months						Nine Months
		Ended September 30,						Ended September 30,
		2014			2013			2014			2013
		(In millions)
	Canada divestitures:
	Employee related and other costs	$	2		$	—		$	44		$	—
	Office consolidation:
	Lease obligations and other		—			4			—			50
	Restructuring costs	$	2		$	4		$	44		$	50
	The schedule below summarizes Devon’s restructuring liabilities.
			Other			Other
			Current			Long-Term
			Liabilities			Liabilities			Total
			(In millions)
	Balance as of December 31, 2013		$	27		$	18		$	45
	Changes due to Canadian divestitures			2			2			4
	Changes due to office consolidation			-22			-1			-23
	Changes due to offshore divestiture			-2			-1			-3
	Balance as September 30, 2014		$	5		$	18		$	23
	Balance as of December 31, 2012		$	52		$	9		$	61
	Changes due to office consolidation			-16			11			-5
	Changes due to offshore divestiture			-2			-1			-3
	Balance as of September 30, 2013		$	34		$	19		$	53

Income_Taxes

Income Taxes	9 Months Ended
	Sep. 30, 2014
Income Taxes [Abstract]	'
Income Taxes	'
	7.     Income Taxes
	The following table presents Devon’s total income tax expense (benefit) and a reconciliation of its effective income tax rate to the U.S. statutory income tax rate.
		Three Months Ended September 30,				Nine Months Ended September 30,
		2014		2013		2014		2013
	Total income tax expense (benefit) (in millions)	$	613	$	210	$	1,698	$	-99
	U.S. statutory income tax rate		35%		35%		35%		-35%
	Repatriations		—		—		7%		—
	State income taxes		2%		1%		1%		-3%
	Taxation on Canadian operations		—		-5%		1%		9%
	Taxes on EnLink formation		—		—		1%		—
	Other		—		2%		—		-1%
	Effective income tax rate		37%		33%		45%		-30%
	In the third quarter of 2014, Devon completed its U.S. non-core asset divestiture program. In conjunction with the divestiture closing, Devon recognized $543 million of current income tax expense. The current tax expense was entirely offset by the recognition of deferred tax benefits.
	In the second quarter of 2014, Devon recognized $247 million of additional income tax expense related to the $2.8 billion of repatriations to the U.S. Prior to the repatriation, Devon had recognized a $143 million deferred income tax liability associated with the planned repatriation. When the repatriation was made, Devon retained a larger property basis in Canada than was previously estimated, resulting in the incremental tax in the second quarter.
	In the first quarter of 2014, Devon recorded a $48 million deferred tax liability in conjunction with the formation of EnLink, which impacted the effective tax rate as reflected in the table above.
	In the second quarter of 2013, Devon repatriated to the U.S. $2.0 billion of cash from its foreign subsidiaries. In conjunction with the repatriation, Devon recognized approximately $100 million of current income tax expense. The current expense was entirely offset by the recognition of deferred income tax benefits, which included the reduction of the deferred tax liability previously recognized for unremitted foreign earnings deemed not to be indefinitely reinvested.

Earnings_Loss_Per_Share_Attrib

Earnings (Loss) Per Share Attributable To Devon	9 Months Ended
	Sep. 30, 2014
Net earnings (loss) per share attributable to Devon:	'
Earnings (Loss) Per Share	'
	8.     Earnings (Loss) Per Share Attributable to Devon
	The following table reconciles net earnings (loss) attributable to Devon and common shares outstanding used in the calculations of basic and diluted earnings per share.
				Common		Earnings (loss)
		Earnings (loss)		Shares		per  Share
		(In millions, except per share amounts)
	Three Months Ended September 30, 2014:
	Net earnings attributable to Devon	$	1,016		409
	Attributable to participating securities		-11		-4
	Basic earnings per share		1,005		405	$	2.48
	Dilutive effect of potential common shares issuable		-		2
	Diluted earnings per share	$	1,005		407	$	2.47
	Three Months Ended September 30, 2013:
	Net earnings attributable to Devon	$	429		406
	Attributable to participating securities		-4		-4
	Basic earnings per share		425		402	$	1.06
	Dilutive effect of potential common shares issuable		-		1
	Diluted earnings per share	$	425		403	$	1.05
	Nine Months Ended September 30, 2014:
	Net earnings attributable to Devon	$	2,015		408
	Attributable to participating securities		-20		-4
	Basic earnings per share		1,995		404	$	4.94
	Dilutive effect of potential common shares issuable		-		2
	Diluted earnings per share	$	1,995		406	$	4.91
	Nine Months Ended September 30, 2013:
	Net loss attributable to Devon	$	-227		406
	Attributable to participating securities		-2		-4
	Basic loss per share		-229		402	$	-0.57
	Dilutive effect of potential common shares issuable		-		-
	Diluted loss per share	$	-229		402	$	-0.57
	Certain options to purchase shares of Devon's common stock are excluded from the dilution calculation because the options are antidilutive. During the three-month and nine-month periods ended September 30, 2014, 1.1 million shares and 3.2 million shares, respectively, were excluded from the diluted earnings per share calculations. During the three-month and nine-month periods ended September 30, 2013, 7.5 million shares and 7.6 million shares, respectively, were excluded from the diluted earnings per share calculations.

Other_Comprehensive_Earnings

Other Comprehensive Earnings	9 Months Ended
	Sep. 30, 2014
Other Comprehensive Earnings [Abstract]	'
Other Comprehensive Earnings	'
	9.     Other Comprehensive Earnings
	Components of other comprehensive earnings consist of the following:
		Three Months Ended				Nine Months Ended
		September 30,				September 30,
		2014		2013		2014		2013
		(In millions)
	Foreign currency translation:
	Beginning accumulated foreign currency translation	$	1,442	$	1,542	$	1,448	$	1,996
	Change in cumulative translation adjustment		-299		182		-306		-294
	Income tax benefit (expense)		20		-9		21		13
	Ending accumulated foreign currency translation		1,163		1,715		1,163		1,715
	Pension and postretirement benefit plans:
	Beginning accumulated pension and postretirement benefits		-172		-216		-180		-225
	Recognition of net actuarial loss and prior service cost in earnings (1)		4		6		15		18
	Income tax expense		-2		-3		-5		-6
	Ending accumulated pension and postretirement benefits		-170		-213		-170		-213
	Accumulated other comprehensive earnings, net of tax	$	993	$	1,502	$	993	$	1,502
	__________________________
	(1)  These accumulated other comprehensive earnings components are included in the computation of net periodic benefit cost, which is a component of general and administrative expenses on the accompanying comprehensive statements of earnings (see Note 15 for additional details).

Supplemental_Information_To_St

Supplemental Information To Statements Of Cash Flows	9 Months Ended
	Sep. 30, 2014
Supplemental Information To Statements Of Cash Flows [Abstract]	'
Supplemental Information To Statements Of Cash Flows	'
	10.     Supplemental Information to Statements of Cash Flows
		Nine Months Ended September 30,
		2014		2013
		(In millions)
	Net change in working capital accounts:
	Accounts receivable	$	-25	$	-287
	Other current assets		-120		72
	Accounts payable		-118		127
	Income taxes payable		704		7
	Revenues and royalties payable		381		56
	Other current liabilities		-56		-79
	Net change in working capital	$	766	$	-104
	Interest paid (net of capitalized interest)	$	355	$	342
	Income taxes paid (received)	$	214	$	-2
	On March 7, 2014, Devon completed a business combination to form EnLink. With the exception of a $100 million cash payment to noncontrolling interests, the business combination was a non-monetary transaction. See Note 2 for additional details.

Accounts_Receivable

Accounts Receivable	9 Months Ended
	Sep. 30, 2014
Accounts Receivable [Abstract]	'
Accounts Receivable	'
	11.    Accounts Receivable
	The components of accounts receivable include the following:
		30-Sep-14		31-Dec-13
		(In millions)
	Oil, gas and NGL sales	$	899	$	851
	Joint interest billings		393		447
	Marketing and midstream revenues		674		172
	Other		54		61
	Gross accounts receivable		2,020		1,531
	Allowance for doubtful accounts		-11		-11
	Net accounts receivable	$	2,009	$	1,520

Goodwill

Goodwill	9 Months Ended
	Sep. 30, 2014
Goodwill [Abstract]	'
Goodwill	'
	12.    Goodwill
	The table below provides a summary of Devon’s goodwill, by assigned reporting unit.
		30-Sep-14		31-Dec-13
		(In millions)
	U.S.	$	2,618	$	2,618
	Canada		1,997		2,838
	EnLink		3,695		402
	Total	$	8,310	$	5,858
	The changes to Devon’s goodwill during the first nine months of 2014 relate to both EnLink and Canada. Included in the assets Devon contributed to EnLink Holdings was $402 million of goodwill. The additional EnLink goodwill of $3.3 billion represents the goodwill recognized on the EnLink transaction described in Note 2.
	The decrease in Devon’s Canadian goodwill was primarily due to goodwill that was derecognized upon the asset divestitures described in Note 2.

Debt

Debt	9 Months Ended
	Sep. 30, 2014
Debt [Abstract]	'
Debt	'
	13.    Debt
		30-Sep-14			31-Dec-13
		(In millions)
	Devon debt
	Commercial paper	$	-		$	1,317
	5.625% due January 15, 2014		-			500
	Floating rate due December 15, 2015		500			500
	2.40% due July 15, 2016		500			500
	Floating rate due December 15, 2016		350			350
	1.20% due December 15, 2016		650			650
	1.875% due May 15, 2017		750			750
	8.25% due July 1, 2018		125			125
	2.25% due December 15, 2018		750			750
	6.30% due January 15, 2019		700			700
	4.00% due July 15, 2021		500			500
	3.25% due May 15, 2022		1,000			1,000
	7.50% due September 15, 2027		150			150
	7.875% due September 30, 2031		1,250			1,250
	7.95% due April 15, 2032		1,000			1,000
	5.60% due July 15, 2041		1,250			1,250
	4.75% due May 15, 2042		750			750
	Net discount on debentures and notes		-20			-20
	Total Devon debt		10,205			12,022
	EnLink debt
	Credit facilities		451			-
	Other borrowings		27			-
	2.70% due April 1, 2019		400			-
	7.125% due June 1, 2022		163			-
	4.40% due April 1, 2024		450			-
	5.60% due April 1, 2044		350			-
	Net premium on debentures and notes		13			-
	Total EnLink debt		1,854			-
	Total debt		12,059			12,022
	Less amount classified as short-term debt (1)		1,898			4,066
	Total long-term debt	$	10,161		$	7,956
	___________________
		-1		Short-term debt as of September 30, 2014 consists of $1.9 billion of senior notes that Devon intends to redeem in the fourth quarter of 2014 prior to their scheduled maturity date. The redemption includes the 2.4% $500 million senior note due 2016, the 1.2% $650 million senior note due 2016 and the 1.875% $750 million senior note due 2017 plus unpaid interest and a make-whole premium. The debt will be repaid with funds received as part of the divestiture program discussed in Note 2.
	Short-term debt as of December 31, 2013 consists of $2.25 billion of senior notes issued in conjunction with the GeoSouthern acquisition, $1.3 billion of commercial paper and $500 million of senior notes due January 15, 2014. Subsequent to the close of the GeoSouthern acquisition the $2.25 billion of senior notes were reclassified to long-term debt.
	Commercial Paper
	During the nine months ended September 30, 2014, Devon has reduced commercial paper borrowings by $1.3 billion primarily utilizing divestiture proceeds. As of September 30, 2014, Devon had no outstanding commercial paper borrowings.
	Credit Lines
	Devon has a $3.0 billion syndicated, unsecured revolving line of credit (the "Senior Credit Facility"). As of September 30, 2014, there were no borrowings under the Senior Credit Facility. The Senior Credit Facility contains only one material financial covenant. This covenant requires Devon’s ratio of total funded debt to total capitalization, as defined in the credit agreement, to be no greater than 65 percent. As of September 30, 2014, Devon was in compliance with this covenant with a debt-to-capitalization ratio of 22.7 percent.
	Term Loans
	In December 2013, in conjunction with the GeoSouthern acquisition, Devon entered into a term loan agreement with a group of major financial institutions. In February 2014, Devon drew $2.0 billion of term loans to finance, in part, the GeoSouthern acquisition and to pay transaction costs. The term loans were repaid on June 30, 2014 with the Canadian divestiture proceeds that were repatriated to the U.S.
	EnLink Debt
	The table below summarizes the fair value of EnLink’s debt as of March 7, 2014, the formation date of EnLink. The premiums are being amortized using the effective interest method. EnLink’s debt is non-recourse to Devon.
		March 7, 2014 Fair Value			Effective
		of Debt			Rate of Debt
		(In millions)
	8.875% due February 15, 2018 (principal of $725 million) (1)	$	760		7.70%
	7.125% due June 1, 2022 (principal of $197 million)		226		5.30%
	Credit facilities		468
	Total long-term debt	$	1,454
	___________________
		-1		The 2018 senior notes were redeemed on April 18, 2014.
	The Partnership has a $1.0 billion unsecured revolving credit facility, which includes a $500 million letter of credit subfacility. As of September 30, 2014, there were $14.0 million in outstanding letters of credit and $371.0 million outstanding borrowings under the $1.0 billion credit facility, leaving $615.0 million available for future borrowing.
	The $1.0 billion credit facility will mature on the fifth anniversary of the initial funding date, which was March 7, 2014, unless EnLink requests, and the requisite lenders agree, to extend it pursuant to its terms. The credit facility contains certain financial, operational and legal covenants.  Among other things, these covenants include maintaining a ratio of consolidated indebtedness to EnLink’s consolidated EBITDA (as defined in the credit facility, which definition includes projected EnLink EBITDA from certain capital expansion projects) of no more than 5.0 to 1.0. If EnLink consummates one or more acquisitions in which the aggregate purchase price is $50 million or more, the maximum allowed ratio of consolidated indebtedness to EnLink’s consolidated EBITDA will increase to 5.5 to 1.0 for the quarter of the acquisition and the three following quarters.
	EnLink also has a $250 million revolving credit facility, which includes a $125 million letter of credit subfacility, as well as an additional credit agreement in association with E2 Energy Services LLC under which EnLink can borrow up to $30 million. As of September 30, 2014, EnLink’s outstanding borrowings under the $250 million credit facility were $81 million and $26 million in association with the E2 Energy Services LLC credit agreement. Additionally, as of September 30, 2014, E2 Services had certain promissory notes outstanding related to its vehicle fleet in the amount of $0.4 million due in increments through July 2017.
	The $250 million credit facility will mature on March 7, 2019. The credit facility contains certain financial, operational and legal covenants. The financial covenants will be tested on a quarterly basis, based on the rolling four-quarter period that ends on the last day of each fiscal quarter, and include (i) maintaining a maximum consolidated leverage ratio (as defined in the credit facility, but generally computed as the ratio of consolidated funded indebtedness to consolidated earnings before interest, taxes, depreciation, amortization and certain other non-cash charges) of 4.00 to 1.00, provided that the maximum consolidated leverage ratio is 4.50 to 1.00 during an acquisition period (as defined in the credit facility) and (ii) maintaining a minimum consolidated interest coverage ratio (as defined in the credit facility, but generally computed as the ratio of consolidated earnings before interest, taxes, depreciation, amortization and certain other non-cash charges to consolidated interest charges) of 2.50 to 1.00 at all times prior to the occurrence of an investment grade event (as defined in the credit facility).

Asset_Retirement_Obligations

Asset Retirement Obligations	9 Months Ended
	Sep. 30, 2014
Asset Retirement Obligations [Abstract]	'
Asset Retirement Obligations	'
	14.    Asset Retirement Obligations
	The schedule below summarizes changes in Devon’s asset retirement obligations.
		Nine Months Ended September 30,
		2014		2013
			(In millions)
	Asset retirement obligations as of beginning of period	$	2,228	$	2,095
	Liabilities incurred		79		88
	Liabilities settled		-38		-46
	Revision of estimated obligation		75		104
	Liabilities assumed by others		-949		-15
	Accretion expense on discounted obligation		70		86
	Foreign currency translation adjustment		-55		-44
	Asset retirement obligations as of end of period		1,410		2,268
	Less current portion		62		107
	Asset retirement obligations, long-term	$	1,348	$	2,161
	During the first nine months of 2014, Devon reduced its asset retirement obligations $949 million for those obligations that were assumed by the purchasers of Devon’s Canadian and U.S. non-core oil and gas properties.

Retirement_Plans

Retirement Plans	9 Months Ended
	Sep. 30, 2014
Retirement Plans [Abstract]	'
Retirement Plans	'
	15.    Retirement Plans
	The following table presents the components of net periodic benefit cost for Devon’s pension and postretirement benefit plans.
		Pension Benefits								Postretirement Benefits
		Three Months Ended				Nine Months Ended				Three Months Ended				Nine Months Ended
		September 30,				September 30,				September 30,				September 30,
		2014		2013		2014		2013		2014		2013		2014		2013
		(In millions)
	Service cost	$	7	$	9	$	22	$	27	$	—	$	—	$	—	$	—
	Interest cost		14		13		41		39		—		—		—		1
	Expected return on plan assets		-13		-16		-40		-47		—		—		—		—
	Amortization of prior service cost (1)		1		1		3		3		-1		—		-1		—
	Net actuarial loss (gain) (1)		4		5		14		16		—		—		-1		-1
	Net periodic benefit cost (2)	$	13	$	12	$	40	$	38	$	-1	$	—	$	-2	$	—
	__________________________
	(1)  These net periodic benefit costs were reclassified out of other comprehensive earnings in the current period.
	(2)  Net periodic benefit cost is a component of general and administrative expenses on the accompanying comprehensive statements of earnings.

Stockholders_Equity

Stockholders' Equity	9 Months Ended
	Sep. 30, 2014
Stockholders' Equity [Abstract]	'
Stockholders' Equity	'
	16.    Stockholders' Equity
	Dividends
	Devon paid common stock dividends of $287 million and $259 million in the first nine months of 2014 and 2013, respectively. The quarterly cash dividend was $0.20 per share in the first quarter of 2013. Devon increased the dividend rate to $0.22 per share in the second quarter of 2013 and to $0.24 per share in the second quarter of 2014.
	Subsidiary equity transactions
	In May 2014, the Partnership entered into an Equity Distribution Agreement (the “EDA”) with BMO Capital Markets Corp. (“BMO”). Pursuant to the terms of the EDA, the Partnership may from time to time through BMO, as its sales agent, sell common units representing limited partner interests having an aggregate offering price of up to $75 million.
	Through September 30, 2014, the Partnership sold an aggregate of 2.4 million common units under the EDA, generating net proceeds of approximately $72 million. The Partnership used the net proceeds for general partnership purposes, including working capital, capital expenditures and repayments of indebtedness.
	Distributions to noncontrolling interests
	In conjunction with the formation of EnLink in the first quarter of 2014, Devon made a payment of $100 million to noncontrolling interests. Further, EnLink distributed $87 million to its non-Devon unitholders during the first nine months of 2014.

Commitments_And_Contingencies

Commitments And Contingencies	9 Months Ended
	Sep. 30, 2014
Commitments And Contingencies [Abstract]	'
Commitments And Contingencies	'
	17.    Commitments and Contingencies
	Devon is party to various legal actions arising in the normal course of business. Matters that are probable of unfavorable outcome to Devon and which can be reasonably estimated are accrued. Such accruals are based on information known about the matters, Devon's estimates of the outcomes of such matters and its experience in contesting, litigating and settling similar matters. None of the actions are believed by management to involve future amounts that would be material to Devon's financial position or results of operations after consideration of recorded accruals. Actual amounts could differ materially from management's estimates.
	Royalty Matters
	Numerous oil and natural gas producers and related parties, including Devon, have been named in various lawsuits alleging royalty underpayments. The suits allege that the producers and related parties used below-market prices, made improper deductions, used improper measurement techniques and entered into gas purchase and processing arrangements with affiliates that resulted in underpayment of royalties in connection with oil, natural gas and NGLs produced and sold. Devon does not currently believe that it is subject to material exposure with respect to such royalty matters.
	Environmental Matters
	Devon is subject to certain laws and regulations relating to environmental remediation activities associated with past operations, such as the Comprehensive Environmental Response, Compensation, and Liability Act and similar state statutes. In response to liabilities associated with these activities, loss accruals primarily consist of estimated uninsured remediation costs. Devon's monetary exposure for environmental matters is not expected to be material.
	Other Matters
	Devon is involved in other various routine legal proceedings incidental to its business. However, to Devon's knowledge, there were no other material pending legal proceedings to which Devon is a party or to which any of its property is subject.

Fair_Value_Measurements

Fair Value Measurements	9 Months Ended
	Sep. 30, 2014
Fair Value Measurements [Abstract]	'
Fair Value Measurements	'
	18.    Fair Value Measurements
	The following tables provide carrying value and fair value measurement information for certain of Devon’s financial assets and liabilities. The carrying values of cash, accounts receivable, other current receivables, accounts payable, other current payables and accrued expenses included in the accompanying balance sheets approximated fair value at September 30, 2014 and December 31, 2013. Therefore, such financial assets and liabilities are not presented in the following tables.
						Fair Value Measurements Using:
		Carrying		Total Fair		Level 1		Level 2		Level 3
		Amount		Value		Inputs		Inputs		Inputs
			(In millions)
	September 30, 2014 assets (liabilities):
	Cash equivalents	$	2,876	$	2,876	$	1,745	$	1,131	$	—
	Commodity derivatives	$	297	$	297	$	—	$	297	$	—
	Commodity derivatives	$	-80	$	-80	$	—	$	-80	$	—
	EnLink commodity derivatives	$	1	$	1	$	—	$	1	$	—
	EnLink commodity derivatives	$	-2	$	-2	$	—	$	-2	$	—
	Interest rate derivatives	$	1	$	1	$	—	$	1	$	—
	Interest rate derivatives	$	-2	$	-2	$	—	$	-2	$	—
	Foreign currency derivatives	$	11	$	11	$	—	$	11	$	—
	Debt	$	-12,059	$	-13,410	$	—	$	-13,410	$	—
	Capital lease obligations	$	-21	$	-21	$	—	$	-21	$	—
	December 31, 2013 assets (liabilities):
	Cash equivalents	$	5,305	$	5,305	$	4,191	$	1,114	$	—
	Long-term investments	$	62	$	62	$	—	$	—	$	62
	Commodity derivatives	$	103	$	103	$	—	$	103	$	—
	Commodity derivatives	$	-120	$	-120	$	—	$	-120	$	—
	Foreign currency derivatives	$	-1	$	-1	$	—	$	-1	$	—
	Debt	$	-12,022	$	-12,908	$	—	$	-12,908	$	—
	The following methods and assumptions were used to estimate the fair values in the tables above.
	Level 1 Fair Value Measurements
	Cash equivalents —  Amounts consist primarily of U.S. and Canadian treasury securities and money market investments. The fair value approximates the carrying value.
	Level 2 Fair Value Measurements
	Cash equivalents —  Amounts consist primarily of Canadian agency and provincial securities and commercial paper investments. The fair value approximates the carrying value.
	Commodity, interest rate and foreign currency derivatives — The fair values of commodity, interest rate and foreign currency derivatives are estimated using internal discounted cash flow calculations based upon forward curves and data obtained from independent third parties for contracts with similar terms or data obtained from counterparties to the agreements.
	Debt — Devon's debt instruments do not actively trade in an established market. The fair values of its debt are estimated based on rates available for debt with similar terms and maturity. The fair value of Devon’s commercial paper and EnLink’s credit facility is the carrying value.
	Capital lease obligations —  The fair value was calculated using inputs from third-party banks.
	Level 3 Fair Value Measurements
	Long-term investments — Devon’s long-term investments as of December 31, 2013 consisted entirely of auction rate securities. In the first quarter of 2014, Devon redeemed all these securities for approximately $57 million, or $5 million below their carrying value.

Segment_Information

Segment Information	9 Months Ended
	Sep. 30, 2014
Segment Information [Abstract]	'
Segment Information	'
	19.    Segment Information
	Devon manages its operations through distinct operating segments, which are defined primarily by geographic areas. For financial reporting purposes, Devon aggregates its U.S. operating segments into one reporting segment due to the similar nature of the businesses. However, Devon's Canadian operating segment is reported as a separate reporting segment primarily due to the significant differences between the U.S. and Canadian regulatory environments. Devon’s U.S. and Canadian segments are both primarily engaged in oil and gas exploration and production activities.
	With the formation of EnLink in the first quarter of 2014, Devon considers EnLink to be an operating segment that is distinct from its existing operating segments. EnLink’s operations consist of midstream assets and operations located across the U.S. Additionally, EnLink has a management team that is primarily responsible for capital and resource allocation decisions. Therefore, EnLink is presented as a separate reporting segment. For the reporting periods prior to the formation of EnLink, Devon has reclassified, from its U.S. segment to the EnLink segment, all asset-level amounts related to the midstream assets that it contributed to EnLink Holdings.
		U.S.		Canada		EnLink		Eliminations		Total
		(In millions)
	Three Months Ended September 30, 2014:
	Revenues from external customers	$	4,199	$	481	$	656	$	—	$	5,336
	Intersegment revenues	$	—	$	—	$	199	$	-199	$	—
	Depreciation, depletion and amortization	$	655	$	113	$	74	$	—	$	842
	Interest expense	$	95	$	20	$	14	$	-11	$	118
	Earnings (loss) before income taxes	$	1,461	$	109	$	84	$	—	$	1,654
	Income tax expense (benefit)	$	557	$	38	$	18	$	—	$	613
	Net earnings (loss)	$	904	$	71	$	66	$	—	$	1,041
	Net earnings attributable to noncontrolling interests	$	—	$	—	$	25	$	—	$	25
	Net earnings (loss) attributable to Devon	$	904	$	71	$	41	$	—	$	1,016
	Capital expenditures	$	1,213	$	335	$	207	$	—	$	1,755
	Three Months Ended September 30, 2013:
	Revenues from external customers	$	1,687	$	791	$	236	$	—	$	2,714
	Intersegment revenues	$	—	$	—	$	342	$	-342	$	—
	Depreciation, depletion and amortization	$	444	$	199	$	48	$	—	$	691
	Interest expense	$	94	$	20	$	—	$	-10	$	104
	Asset impairments	$	7	$	—	$	—	$	—	$	7
	Earnings (loss) before income taxes	$	366	$	219	$	54	$	—	$	639
	Income tax expense (benefit)	$	141	$	50	$	19	$	—	$	210
	Net earnings (loss)	$	225	$	169	$	35	$	—	$	429
	Capital expenditures	$	1,219	$	437	$	37	$	—	$	1,693
	Nine Months Ended September 30, 2014:
	Revenues from external customers	$	10,067	$	1,671	$	1,833	$	—	$	13,571
	Intersegment revenues	$	—	$	—	$	672	$	-672	$	—
	Depreciation, depletion and amortization	$	1,794	$	419	$	196	$	—	$	2,409
	Interest expense	$	303	$	61	$	33	$	-31	$	366
	Earnings (loss) before income taxes	$	2,219	$	1,310	$	239	$	—	$	3,768
	Income tax expense (benefit)	$	1,121	$	517	$	60	$	—	$	1,698
	Net earnings (loss)	$	1,098	$	793	$	179	$	—	$	2,070
	Net earnings attributable to noncontrolling interests	$	1	$	—	$	54	$	—	$	55
	Net earnings (loss) attributable to Devon	$	1,097	$	793	$	125	$	—	$	2,015
	Property and equipment, net	$	23,764	$	6,882	$	4,523	$	—	$	35,169
	Total assets	$	30,533	$	10,895	$	9,528	$	-117	$	50,839
	Capital expenditures	$	9,748	$	1,055	$	491	$	—	$	11,294
	Nine Months Ended September 30, 2013:
	Revenues from external customers	$	5,033	$	2,052	$	688	$	—	$	7,773
	Intersegment revenues	$	—	$	—	$	1,005	$	-1,005	$	—
	Depreciation, depletion and amortization	$	1,287	$	643	$	139	$	—	$	2,069
	Interest expense	$	284	$	62	$	—	$	-24	$	322
	Asset impairments	$	1,117	$	843	$	—	$	—	$	1,960
	Earnings (loss) before income taxes	$	96	$	-559	$	137	$	—	$	-326
	Income tax expense (benefit)	$	10	$	-158	$	49	$	—	$	-99
	Net earnings (loss)	$	86	$	-401	$	88	$	—	$	-227
	Capital expenditures	$	3,477	$	1,377	$	173	$	—	$	5,027
	December 31, 2013:
	Property and equipment, net	$	18,201	$	8,478	$	1,768	$	—	$	28,447
	Total assets	$	27,080	$	13,560	$	2,237	$	—	$	42,877

Summary_Of_Significant_Account1

Summary Of Significant Accounting Policies (Policies)	9 Months Ended
	Sep. 30, 2014
Summary Of Significant Accounting Policies [Abstract]	'
Basis of Presentation	'
	Basis of Presentation
	The accompanying consolidated financial statements include the accounts of Devon and entities in which it holds a controlling interest. All intercompany transactions have been eliminated. Undivided interests in oil and natural gas exploration and production joint ventures are consolidated on a proportionate basis. Investments in non-controlled entities, over which Devon has the ability to exercise significant influence over operating and financial policies, are accounted for using the equity method. In applying the equity method of accounting, the investments are initially recognized at cost and subsequently adjusted for Devon’s proportionate share of earnings, losses and distributions. Investments accounted for using the equity method and cost method are reported as a component of other long-term assets.
	As discussed more fully in Note 2, on March 7, 2014, Devon completed a business combination whereby Devon controls both EnLink Midstream Partners, LP (the “Partnership”) and its general partner entity, EnLink Midstream, LLC (“EnLink”). Devon controls both the Partnership’s and EnLink’s operations; therefore, the Partnership’s and EnLink’s accounts are included in Devon’s accompanying consolidated financial statements subsequent to the completion of the transaction. The portions of the Partnership’s and EnLink’s net earnings and stockholders’ equity not attributable to Devon’s controlling interest are shown separately as noncontrolling interests in the accompanying consolidated comprehensive statements of earnings and consolidated balance sheets.
Intangible Assets	'
	Intangible Assets
	EnLink’s long-term assets include intangible assets, consisting of customer relationships. These assets are amortized on a straight-line basis over the expected periods of benefits, which range from ten to twenty years.
Recently Issued Accounting Standards Not Yet Adopted	'
	Recently Issued Accounting Standards Not Yet Adopted
	In May 2014, the FASB issued Accounting Standards Update 2014-09, Revenue from Contracts with Customers (Topic 606). The update provides guidance concerning the recognition and measurement of revenue from contracts with customers.  Its objective is to increase the usefulness of information in the financial statements regarding the nature, timing and uncertainty of revenues. The update is effective for Devon beginning on January 1, 2017. The standard permits the use of either the retrospective or cumulative effect transition method. Devon has not yet selected a transition method and is evaluating the impact this standard will have on its consolidated financial statements and related disclosures.

Acquisitions_And_Divestitures_

Acquisitions And Divestitures (Tables)	9 Months Ended
	Sep. 30, 2014
Business Acquisition [Line Items]	'
Schedule Of Operating Revenue And Net Earnings For EnLink And GeoSouthern	'
		Three Months Ended September 30, 2014					Nine Months Ended September 30, 2014
		GeoSouthern			EnLink		GeoSouthern		EnLink
		(In millions)					(In millions)
	Total operating revenues	$	634		$	700	$	1,374	$	1,670
	Total operating expenses		322			692		708		1,654
	Operating income	$	312		$	8	$	666	$	16
Schedule Of Unaudited Proforma Information For EnLink And GeoSouthern	'
		Nine Months Ended September 30,
		2014			2013
		(In millions)
	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
EnLink And Partnership [Member]	'
Business Acquisition [Line Items]	'
Schedule Of Purchase Price Allocation	'
	Crosstex Energy, Inc. outstanding common shares:
	Held by public shareholders		48.0
	Restricted shares		0.4
	Total subject to conversion		48.4
	Exchange ratio		1.0	x
	Converted shares		48.4
	Crosstex Energy, Inc. common share price (1)	$	37.60
	Crosstex Energy, Inc. consideration	$	1,823
	Fair value of noncontrolling interests in E2 (2)	$	12
	Total Crosstex Energy, Inc. consideration and fair value of noncontrolling interests	$	1,835
	Partnership outstanding units:
	Common units held by public unitholders		75.1
	Preferred units held by third party (3)		17.1
	Restricted units		0.4
	Total		92.6
	Partnership common unit price (4)	$	30.51
	Partnership common units value	$	2,825
	Partnership outstanding unit options value	$	4
	Total fair value of noncontrolling interests in the Partnership (4)	$	2,829
	Total consideration and fair value of noncontrolling interests	$	4,664
	__________________________
	(1) The final purchase price is based on the fair value of Crosstex Energy Inc.’s common shares as of the closing date, March 7, 2014.
	(2) Represents the value of noncontrolling interests related to EnLink’s equity investment in E2 Energy Services, LLC and E2 Appalachian Compression, LLC (collectively “E2”).
	(3) The Partnership converted the preferred units to common units in February 2014.
	(4) The final purchase price is based on the fair value of the Partnership’s common shares as of the closing date, March 7, 2014.
EnLink [Member]	'
Business Acquisition [Line Items]	'
Schedule Of Purchase Price Allocation	'
	Assets acquired:
	Current assets	$	438
	Property, plant and equipment, net		2,438
	Intangible assets		547
	Equity investment		222
	Goodwill (1)		3,292
	Other long term assets		1
	Liabilities assumed:
	Current liabilities		-516
	Long-term debt		-1,454
	Deferred income taxes		-203
	Other long-term liabilities		-101
	Total consideration and fair value of noncontrolling interests	$	4,664
	__________________________
	(1)  Goodwill is the excess of the consideration transferred over the net assets recognized and represents the future economic benefits arising from other assets acquired that could not be individually identified and separately recognized. Goodwill is not amortized and is not deductible for tax purposes.
GeoSouthern Intermediate Holdings, LLC [Member]	'
Business Acquisition [Line Items]	'
Schedule Of Purchase Price Allocation	'
	Cash and cash equivalents	$	95
	Other current assets		256
	Proved properties		5,029
	Unproved properties		1,008
	Midstream assets		85
	Current liabilities		-437
	Long-term liabilities		-6
	Net assets acquired	$	6,030

Derivative_Financial_Instrumen1

Derivative Financial Instruments (Tables)	9 Months Ended
	Sep. 30, 2014
Derivative [Line Items]	'
Schedule of Derivative Financial Instruments Included In Comprehensive Statements of Earnings	'
			Comprehensive Statements of		Three Months Ended						Nine Months Ended
					September 30,						September 30,
			Earnings Caption		2014			2013			2014			2013
					(In millions)
	Commodity derivatives		Oil, gas and NGL derivatives		$	748		$	-141		$	29		$	-95
	EnLink commodity derivatives		Marketing and midstream revenues			1			—			-2			—
	Interest rate derivatives		Other nonoperating items			—			1			1			1
	Foreign currency derivatives		Other nonoperating items			55			-28			15			29
	Net gains (losses) recognized in comprehensive statements of earnings				$	804		$	-168		$	43		$	-65
Schedule of Derivative Financial Instruments Included in Accompanying Balance Sheets	'
			Balance Sheet Caption		30-Sep-14			31-Dec-13
					(In millions)
	Asset derivatives:
	Commodity derivatives		Other current assets		$	231		$	75
	Commodity derivatives		Other long-term assets			66			28
	EnLink commodity derivatives		Other current assets			1			—
	Interest rate derivatives		Other current assets			1			—
	Foreign currency derivatives		Other current assets			11			—
	Total asset derivatives				$	310		$	103
	Liability derivatives:
	Commodity derivatives		Other current liabilities		$	30		$	58
	Commodity derivatives		Other long-term liabilities			50			62
	EnLink commodity derivatives		Other current liabilities			1			—
	EnLink commodity derivatives		Other long-term liabilities			1			—
	Interest rate derivatives		Other current liabilities			1			—
	Interest rate derivatives		Other long-term liabilities			1			—
	Foreign currency derivatives		Other current liabilities			—			1
	Total liability derivatives				$	84		$	121
Open Oil Derivative Positions [Member]	'
Derivative [Line Items]	'
Schedule Of Open Derivative Positions	'
			Price Swaps					Price Collars								Call Options Sold
	Period		Volume (Bbls/d)		Weighted Average Price ($/Bbl)			Volume (Bbls/d)		Weighted Average Floor Price ($/Bbl)			Weighted Average Ceiling Price ($/Bbl)			Volume (Bbls/d)	Weighted Average Price ($/Bbl)
	Q4 2014		75,000		$	94.14		64,750		$	89.33		$	100		42,000	$	116.43
	Q1-Q4 2015		106,736		$	91.22		31,500		$	89.67		$	97.84		28,000	$	116.43
	Q1-Q4 2016		—		$	—		—		$	—		$	—		18,500	$	103.11
			Oil Basis Swaps
	Period		Index		Volume (Bbls/d)		Weighted Average Differential to WTI ($/Bbl)
	Q4 2014		Western Canadian Select		50,000		$	-17.4
	Q1-Q4 2015		Western Canadian Select		14,890		$	-18.92
Open Natural Gas Derivative Positions [Member]	'
Derivative [Line Items]	'
Schedule Of Open Derivative Positions	'
			Price Swaps					Price Collars								Call Options Sold
	Period		Volume (MMBtu/d)		Weighted Average Price ($/MMBtu)			Volume (MMBtu/d)		Weighted Average Floor Price ($/MMBtu)			Weighted Average Ceiling Price ($/MMBtu)			Volume (MMBtu/d)	Weighted Average Price ($/MMBtu)
	Q4 2014		800,000		$	4.42		460,000		$	4.03		$	4.51		500,000	$	5
	Q1-Q4 2015		210,000		$	4.38		260,000		$	4.05		$	4.36		550,000	$	5.09
	Q1-Q4 2016		—		$	—		—		$	—		$	—		400,000	$	5
			Natural Gas Basis Swaps
	Period		Index		Volume (MMBtu/d)		Weighted Average Differential to Henry Hub ($/MMBtu)
	Q4 2014		AECO		94,781		$	-0.52
	Q1-Q4 2015		PEPL		100,000		$	-0.28
Interest Rate Derivatives [Member]	'
Derivative [Line Items]	'
Schedule Of Open Derivative Positions	'
	Notional			Rate Received		Rate Paid		Expiration
	(In millions)
	$	100		Three Month LIBOR		0.92%		Dec-16
	$	100		1.76%		Three Month LIBOR		Jan-19
Foreign Currency Derivatives [Member]	'
Derivative [Line Items]	'
Schedule Of Open Derivative Positions	'
	Forward Contract
	Currency		Contract Type		CAD Notional			Weighted Average Fixed Rate Received		Expiration
					(In millions)			(CAD-USD)
	Canadian Dollar		Sell		$	1,312		0.899		Dec-14

ShareBased_Compensation_Tables

Share-Based Compensation (Tables)	9 Months Ended
	Sep. 30, 2014
Share-based Compensation [Abstract]	'
Schedule Of The Effects Of Share-Based Compensation Included In The Consolidated Comprehensive Statements Of Earnings	'
			Nine Months Ended September 30,
			2014			2013
			(In millions)
	Gross general and administrative expense		$	155		$	118
	Share-based compensation expense capitalized pursuant to the
	full-cost method of accounting for oil and gas properties		$	40		$	44
	Related income tax benefit		$	20		$	17
Summary of Unvested Restricted Stock Awards And Units, Including Changes During the Year	'
				Restricted Stock Award & Units		Weighted Average Grant-Date Fair Value
				(In thousands)
	Unvested at December 31, 2013			3,292		$	59.76
	Granted			3,412		$	63.53
	Vested			-558		$	60.65
	Forfeited			-607		$	60.96
	Unvested at September 30, 2014			5,539		$	61.73
Summary Of Unvested Performance Stock Awards, Including Changes During The Year	'
				Performance Restricted Stock Awards		Weighted Average Grant-Date Fair Value
				(In thousands)
	Unvested at December 31, 2013			316		$	56.25
	Granted			234		$	61.33
	Vested			-75		$	53.45
	Unvested at September 30, 2014			475		$	59.20
Summary Of Performance-Based Share Units Grant-Date Fair Values And Their Related Assumptions, Represented By The Weighted-Average Amounts	'
		2014
	Grant-date fair value	$	70.18	-	$	81.05
	Risk-free interest rate					0.54%
	Volatility factor					28.8%
	Contractual term (in years)					2.89
Summary Of Performance Share Units	'
				Performance Share Units		Weighted Average Grant-Date Fair Value
				(In thousands)
	Unvested at December 31, 2013			925		$	66.64
	Granted			708		$	77.77
	Forfeited			-147		$	77.25
	Unvested at September 30, 2014 (1)			1,486		$	70.89
	____________________________
		-1		A maximum of 3.0 million common shares could be awarded based upon Devon’s final total shareholder return ranking.

Asset_Impairments_Tables

Asset Impairments (Tables)	9 Months Ended
	Sep. 30, 2014
Asset Impairments [Abstract]	'
Schedule Of Impaired Oil And Gas Properties And Equipment	'
		Nine Months Ended September 30, 2013
		Gross		Net of Taxes
			(In millions)
	U.S. oil and gas assets	$	1,110	$	707
	Canada oil and gas assets		843		632
	Midstream assets		7		4
	Total asset impairments	$	1,960	$	1,343

Restructuring_Costs_Tables

Restructuring Costs (Tables)	9 Months Ended
	Sep. 30, 2014
Restructuring Costs [Abstract]	'
Schedule Of The Components Of Restructuring Costs Included In The Consolidated Comprehensive Statements Of Earnings	'
		Three Months						Nine Months
		Ended September 30,						Ended September 30,
		2014			2013			2014			2013
		(In millions)
	Canada divestitures:
	Employee related and other costs	$	2		$	—		$	44		$	—
	Office consolidation:
	Lease obligations and other		—			4			—			50
	Restructuring costs	$	2		$	4		$	44		$	50
Schedule Of The Activity And Balances Associated With Restructuring Liabilities	'
			Other			Other
			Current			Long-Term
			Liabilities			Liabilities			Total
			(In millions)
	Balance as of December 31, 2013		$	27		$	18		$	45
	Changes due to Canadian divestitures			2			2			4
	Changes due to office consolidation			-22			-1			-23
	Changes due to offshore divestiture			-2			-1			-3
	Balance as September 30, 2014		$	5		$	18		$	23
	Balance as of December 31, 2012		$	52		$	9		$	61
	Changes due to office consolidation			-16			11			-5
	Changes due to offshore divestiture			-2			-1			-3
	Balance as of September 30, 2013		$	34		$	19		$	53

Income_Taxes_Tables

Income Taxes (Tables)	9 Months Ended
	Sep. 30, 2014
Income Taxes [Abstract]	'
Schedule Of Effective Income Tax Reconciliation	'
		Three Months Ended September 30,				Nine Months Ended September 30,
		2014		2013		2014		2013
	Total income tax expense (benefit) (in millions)	$	613	$	210	$	1,698	$	-99
	U.S. statutory income tax rate		35%		35%		35%		-35%
	Repatriations		—		—		7%		—
	State income taxes		2%		1%		1%		-3%
	Taxation on Canadian operations		—		-5%		1%		9%
	Taxes on EnLink formation		—		—		1%		—
	Other		—		2%		—		-1%
	Effective income tax rate		37%		33%		45%		-30%

Earnings_Loss_Per_Share_Attrib1

Earnings (Loss) Per Share Attributable To Devon (Tables)	9 Months Ended
	Sep. 30, 2014
Net earnings (loss) per share attributable to Devon:	'
Earnings (Loss) Per Share Computations	'
				Common		Earnings (loss)
		Earnings (loss)		Shares		per  Share
		(In millions, except per share amounts)
	Three Months Ended September 30, 2014:
	Net earnings attributable to Devon	$	1,016		409
	Attributable to participating securities		-11		-4
	Basic earnings per share		1,005		405	$	2.48
	Dilutive effect of potential common shares issuable		-		2
	Diluted earnings per share	$	1,005		407	$	2.47
	Three Months Ended September 30, 2013:
	Net earnings attributable to Devon	$	429		406
	Attributable to participating securities		-4		-4
	Basic earnings per share		425		402	$	1.06
	Dilutive effect of potential common shares issuable		-		1
	Diluted earnings per share	$	425		403	$	1.05
	Nine Months Ended September 30, 2014:
	Net earnings attributable to Devon	$	2,015		408
	Attributable to participating securities		-20		-4
	Basic earnings per share		1,995		404	$	4.94
	Dilutive effect of potential common shares issuable		-		2
	Diluted earnings per share	$	1,995		406	$	4.91
	Nine Months Ended September 30, 2013:
	Net loss attributable to Devon	$	-227		406
	Attributable to participating securities		-2		-4
	Basic loss per share		-229		402	$	-0.57
	Dilutive effect of potential common shares issuable		-		-
	Diluted loss per share	$	-229		402	$	-0.57

Other_Comprehensive_Earnings_T

Other Comprehensive Earnings (Tables)	9 Months Ended
	Sep. 30, 2014
Other Comprehensive Earnings [Abstract]	'
Components Of Other Comprehensive Earnings	'
		Three Months Ended				Nine Months Ended
		September 30,				September 30,
		2014		2013		2014		2013
		(In millions)
	Foreign currency translation:
	Beginning accumulated foreign currency translation	$	1,442	$	1,542	$	1,448	$	1,996
	Change in cumulative translation adjustment		-299		182		-306		-294
	Income tax benefit (expense)		20		-9		21		13
	Ending accumulated foreign currency translation		1,163		1,715		1,163		1,715
	Pension and postretirement benefit plans:
	Beginning accumulated pension and postretirement benefits		-172		-216		-180		-225
	Recognition of net actuarial loss and prior service cost in earnings (1)		4		6		15		18
	Income tax expense		-2		-3		-5		-6
	Ending accumulated pension and postretirement benefits		-170		-213		-170		-213
	Accumulated other comprehensive earnings, net of tax	$	993	$	1,502	$	993	$	1,502
	__________________________
	(1)  These accumulated other comprehensive earnings components are included in the computation of net periodic benefit cost, which is a component of general and administrative expenses on the accompanying comprehensive statements of earnings (see Note 15 for additional details)

Supplemental_Information_To_St1

Supplemental Information To Statements Of Cash Flows (Tables)	9 Months Ended
	Sep. 30, 2014
Supplemental Information To Statements Of Cash Flows [Abstract]	'
Schedule Of Supplemental To Cash Flow Information	'
		Nine Months Ended September 30,
		2014		2013
		(In millions)
	Net change in working capital accounts:
	Accounts receivable	$	-25	$	-287
	Other current assets		-120		72
	Accounts payable		-118		127
	Income taxes payable		704		7
	Revenues and royalties payable		381		56
	Other current liabilities		-56		-79
	Net change in working capital	$	766	$	-104
	Interest paid (net of capitalized interest)	$	355	$	342
	Income taxes paid (received)	$	214	$	-2

Accounts_Receivable_Tables

Accounts Receivable (Tables)	9 Months Ended
	Sep. 30, 2014
Accounts Receivable [Abstract]	'
Schedule Of Components Of Accounts Receivable	'
		30-Sep-14		31-Dec-13
		(In millions)
	Oil, gas and NGL sales	$	899	$	851
	Joint interest billings		393		447
	Marketing and midstream revenues		674		172
	Other		54		61
	Gross accounts receivable		2,020		1,531
	Allowance for doubtful accounts		-11		-11
	Net accounts receivable	$	2,009	$	1,520

Goodwill_Tables

Goodwill (Tables)	9 Months Ended
	Sep. 30, 2014
Goodwill [Abstract]	'
Schedule Of Goodwill By Reporting Segment	'
		30-Sep-14		31-Dec-13
		(In millions)
	U.S.	$	2,618	$	2,618
	Canada		1,997		2,838
	EnLink		3,695		402
	Total	$	8,310	$	5,858

Debt_Tables

Debt (Tables)	9 Months Ended
	Sep. 30, 2014
Debt Instrument [Line Items]	'
Schedule Of Debt Instruments	'
		30-Sep-14			31-Dec-13
		(In millions)
	Devon debt
	Commercial paper	$	-		$	1,317
	5.625% due January 15, 2014		-			500
	Floating rate due December 15, 2015		500			500
	2.40% due July 15, 2016		500			500
	Floating rate due December 15, 2016		350			350
	1.20% due December 15, 2016		650			650
	1.875% due May 15, 2017		750			750
	8.25% due July 1, 2018		125			125
	2.25% due December 15, 2018		750			750
	6.30% due January 15, 2019		700			700
	4.00% due July 15, 2021		500			500
	3.25% due May 15, 2022		1,000			1,000
	7.50% due September 15, 2027		150			150
	7.875% due September 30, 2031		1,250			1,250
	7.95% due April 15, 2032		1,000			1,000
	5.60% due July 15, 2041		1,250			1,250
	4.75% due May 15, 2042		750			750
	Net discount on debentures and notes		-20			-20
	Total Devon debt		10,205			12,022
	EnLink debt
	Credit facilities		451			-
	Other borrowings		27			-
	2.70% due April 1, 2019		400			-
	7.125% due June 1, 2022		163			-
	4.40% due April 1, 2024		450			-
	5.60% due April 1, 2044		350			-
	Net premium on debentures and notes		13			-
	Total EnLink debt		1,854			-
	Total debt		12,059			12,022
	Less amount classified as short-term debt (1)		1,898			4,066
	Total long-term debt	$	10,161		$	7,956
	___________________
		-1		Short-term debt as of September 30, 2014 consists of $1.9 billion of senior notes that Devon intends to redeem in the fourth quarter of 2014 prior to their scheduled maturity date. The redemption includes the 2.4% $500 million senior note due 2016, the 1.2% $650 million senior note due 2016 and the 1.875% $750 million senior note due 2017 plus unpaid interest and a make-whole premium. The debt will be repaid with funds received as part of the divestiture program discussed in Note 2.
	Short-term debt as of December 31, 2013 consists of $2.25 billion of senior notes issued in conjunction with the GeoSouthern acquisition, $1.3 billion of commercial paper and $500 million of senior notes due January 15, 2014. Subsequent to the close of the GeoSouthern acquisition the $2.25 billion of senior notes were reclassified to long-term debt.
EnLink [Member]	'
Debt Instrument [Line Items]	'
Schedule Of Debt Instruments	'
		March 7, 2014 Fair Value			Effective
		of Debt			Rate of Debt
		(In millions)
	8.875% due February 15, 2018 (principal of $725 million) (1)	$	760		7.70%
	7.125% due June 1, 2022 (principal of $197 million)		226		5.30%
	Credit facilities		468
	Total long-term debt	$	1,454
	___________________
		-1		The 2018 senior notes were redeemed on April 18, 2014.

Asset_Retirement_Obligations_T

Asset Retirement Obligations (Tables)	9 Months Ended
	Sep. 30, 2014
Asset Retirement Obligations [Abstract]	'
Summary Of Changes In Asset Retirement Obligations	'
		Nine Months Ended September 30,
		2014		2013
			(In millions)
	Asset retirement obligations as of beginning of period	$	2,228	$	2,095
	Liabilities incurred		79		88
	Liabilities settled		-38		-46
	Revision of estimated obligation		75		104
	Liabilities assumed by others		-949		-15
	Accretion expense on discounted obligation		70		86
	Foreign currency translation adjustment		-55		-44
	Asset retirement obligations as of end of period		1,410		2,268
	Less current portion		62		107
	Asset retirement obligations, long-term	$	1,348	$	2,161

Retirement_Plans_Tables

Retirement Plans (Tables)	9 Months Ended
	Sep. 30, 2014
Retirement Plans [Abstract]	'
Schedule Of Net Periodic Benefit Cost For Pension And Postretirement Benefit Plans	'
		Pension Benefits								Postretirement Benefits
		Three Months Ended				Nine Months Ended				Three Months Ended				Nine Months Ended
		September 30,				September 30,				September 30,				September 30,
		2014		2013		2014		2013		2014		2013		2014		2013
		(In millions)
	Service cost	$	7	$	9	$	22	$	27	$	—	$	—	$	—	$	—
	Interest cost		14		13		41		39		—		—		—		1
	Expected return on plan assets		-13		-16		-40		-47		—		—		—		—
	Amortization of prior service cost (1)		1		1		3		3		-1		—		-1		—
	Net actuarial loss (gain) (1)		4		5		14		16		—		—		-1		-1
	Net periodic benefit cost (2)	$	13	$	12	$	40	$	38	$	-1	$	—	$	-2	$	—
	__________________________
	(1)  These net periodic benefit costs were reclassified out of other comprehensive earnings in the current period.
	(2)  Net periodic benefit cost is a component of general and administrative expenses on the accompanying comprehensive statements of earnings

Fair_Value_Measurements_Tables

Fair Value Measurements (Tables)	9 Months Ended
	Sep. 30, 2014
Fair Value Measurements [Abstract]	'
Schedule Of Carrying Value And Fair Value Measurement Information For Financial Assets And Liabilities	'
						Fair Value Measurements Using:
		Carrying		Total Fair		Level 1		Level 2		Level 3
		Amount		Value		Inputs		Inputs		Inputs
			(In millions)
	September 30, 2014 assets (liabilities):
	Cash equivalents	$	2,876	$	2,876	$	1,745	$	1,131	$	—
	Commodity derivatives	$	297	$	297	$	—	$	297	$	—
	Commodity derivatives	$	-80	$	-80	$	—	$	-80	$	—
	EnLink commodity derivatives	$	1	$	1	$	—	$	1	$	—
	EnLink commodity derivatives	$	-2	$	-2	$	—	$	-2	$	—
	Interest rate derivatives	$	1	$	1	$	—	$	1	$	—
	Interest rate derivatives	$	-2	$	-2	$	—	$	-2	$	—
	Foreign currency derivatives	$	11	$	11	$	—	$	11	$	—
	Debt	$	-12,059	$	-13,410	$	—	$	-13,410	$	—
	Capital lease obligations	$	-21	$	-21	$	—	$	-21	$	—
	December 31, 2013 assets (liabilities):
	Cash equivalents	$	5,305	$	5,305	$	4,191	$	1,114	$	—
	Long-term investments	$	62	$	62	$	—	$	—	$	62
	Commodity derivatives	$	103	$	103	$	—	$	103	$	—
	Commodity derivatives	$	-120	$	-120	$	—	$	-120	$	—
	Foreign currency derivatives	$	-1	$	-1	$	—	$	-1	$	—
	Debt	$	-12,022	$	-12,908	$	—	$	-12,908	$	—

Segment_Information_Tables

Segment Information (Tables)	9 Months Ended
	Sep. 30, 2014
Segment Information [Abstract]	'
Condensed Statements Of Comprehensive Earnings And Balance Sheets Of Reportable Segments	'
		U.S.		Canada		EnLink		Eliminations		Total
		(In millions)
	Three Months Ended September 30, 2014:
	Revenues from external customers	$	4,199	$	481	$	656	$	—	$	5,336
	Intersegment revenues	$	—	$	—	$	199	$	-199	$	—
	Depreciation, depletion and amortization	$	655	$	113	$	74	$	—	$	842
	Interest expense	$	95	$	20	$	14	$	-11	$	118
	Earnings (loss) before income taxes	$	1,461	$	109	$	84	$	—	$	1,654
	Income tax expense (benefit)	$	557	$	38	$	18	$	—	$	613
	Net earnings (loss)	$	904	$	71	$	66	$	—	$	1,041
	Net earnings attributable to noncontrolling interests	$	—	$	—	$	25	$	—	$	25
	Net earnings (loss) attributable to Devon	$	904	$	71	$	41	$	—	$	1,016
	Capital expenditures	$	1,213	$	335	$	207	$	—	$	1,755
	Three Months Ended September 30, 2013:
	Revenues from external customers	$	1,687	$	791	$	236	$	—	$	2,714
	Intersegment revenues	$	—	$	—	$	342	$	-342	$	—
	Depreciation, depletion and amortization	$	444	$	199	$	48	$	—	$	691
	Interest expense	$	94	$	20	$	—	$	-10	$	104
	Asset impairments	$	7	$	—	$	—	$	—	$	7
	Earnings (loss) before income taxes	$	366	$	219	$	54	$	—	$	639
	Income tax expense (benefit)	$	141	$	50	$	19	$	—	$	210
	Net earnings (loss)	$	225	$	169	$	35	$	—	$	429
	Capital expenditures	$	1,219	$	437	$	37	$	—	$	1,693
	Nine Months Ended September 30, 2014:
	Revenues from external customers	$	10,067	$	1,671	$	1,833	$	—	$	13,571
	Intersegment revenues	$	—	$	—	$	672	$	-672	$	—
	Depreciation, depletion and amortization	$	1,794	$	419	$	196	$	—	$	2,409
	Interest expense	$	303	$	61	$	33	$	-31	$	366
	Earnings (loss) before income taxes	$	2,219	$	1,310	$	239	$	—	$	3,768
	Income tax expense (benefit)	$	1,121	$	517	$	60	$	—	$	1,698
	Net earnings (loss)	$	1,098	$	793	$	179	$	—	$	2,070
	Net earnings attributable to noncontrolling interests	$	1	$	—	$	54	$	—	$	55
	Net earnings (loss) attributable to Devon	$	1,097	$	793	$	125	$	—	$	2,015
	Property and equipment, net	$	23,764	$	6,882	$	4,523	$	—	$	35,169
	Total assets	$	30,533	$	10,895	$	9,528	$	-117	$	50,839
	Capital expenditures	$	9,748	$	1,055	$	491	$	—	$	11,294
	Nine Months Ended September 30, 2013:
	Revenues from external customers	$	5,033	$	2,052	$	688	$	—	$	7,773
	Intersegment revenues	$	—	$	—	$	1,005	$	-1,005	$	—
	Depreciation, depletion and amortization	$	1,287	$	643	$	139	$	—	$	2,069
	Interest expense	$	284	$	62	$	—	$	-24	$	322
	Asset impairments	$	1,117	$	843	$	—	$	—	$	1,960
	Earnings (loss) before income taxes	$	96	$	-559	$	137	$	—	$	-326
	Income tax expense (benefit)	$	10	$	-158	$	49	$	—	$	-99
	Net earnings (loss)	$	86	$	-401	$	88	$	—	$	-227
	Capital expenditures	$	3,477	$	1,377	$	173	$	—	$	5,027
	December 31, 2013:
	Property and equipment, net	$	18,201	$	8,478	$	1,768	$	—	$	28,447
	Total assets	$	27,080	$	13,560	$	2,237	$	—	$	42,877

Summary_Of_Significant_Account2

Summary Of Significant Accounting Policies (Narrative) (Details) (EnLink [Member])	9 Months Ended
	Sep. 30, 2014
Minimum [Member]	'
Summary Of Significant Accounting Policies [Line Items]	'
Finite lived intangible asset useful life	'10 years
Maximum [Member]	'
Summary Of Significant Accounting Policies [Line Items]	'
Finite lived intangible asset useful life	'20 years

Acquisitions_And_Divestitures_1

Acquisitions And Divestitures (Narrative) (Details)

3 Months Ended

9 Months Ended

3 Months Ended

9 Months Ended

0 Months Ended

9 Months Ended

0 Months Ended

9 Months Ended

0 Months Ended

3 Months Ended

0 Months Ended

1 Months Ended

3 Months Ended

0 Months Ended

3 Months Ended

Share data in Millions, unless otherwise specified

Jun. 30, 2014

Sep. 30, 2013

Jun. 30, 2013

Sep. 30, 2014

Sep. 30, 2013

Jun. 30, 2014

Jun. 30, 2014

Jun. 30, 2014

Mar. 31, 2014

Mar. 31, 2014

Sep. 30, 2014

Aug. 29, 2014

Sep. 30, 2014

Sep. 30, 2014

Feb. 28, 2014

Sep. 30, 2014

Mar. 07, 2014

Sep. 30, 2014

Nov. 02, 2014

Oct. 31, 2014

Sep. 30, 2014

Sep. 30, 2014

Sep. 30, 2014

Sep. 30, 2014

Mar. 07, 2014

Sep. 30, 2014

Sep. 30, 2014

Sep. 30, 2014

Sep. 30, 2014

Jun. 30, 2014

USD ($)

USD ($)

USD ($)

USD ($)

USD ($)

Foreign Currency Derivatives [Member]

Canadian Conventional Assets Divestiture [Member]

Canadian Conventional Assets Divestiture [Member]

Canadian Conventional Assets Divestiture [Member]

Canadian Conventional Assets Divestiture [Member]

Canadian Conventional Assets Divestiture [Member]

LINN Energy [Member]

LINN Energy [Member]

EnLink And Partnership [Member]

GeoSouthern Intermediate Holdings, LLC [Member]

GeoSouthern Intermediate Holdings, LLC [Member]

Partnership [Member]

Partnership [Member]

Partnership [Member]

Partnership [Member]

Partnership [Member]

Partnership [Member]

Partnership [Member]

Partnership [Member]

EnLink [Member]

EnLink [Member]

EnLink [Member]

EnLink [Member]

EnLink [Member]

Term Loan [Member]

USD ($)

USD ($)

CAD

USD ($)

CAD

USD ($)

USD ($)

USD ($)

USD ($)

EnLink And Partnership [Member]

Gulf Coast Natural Gas Pipeline [Member]

Gulf Coast Natural Gas Pipeline [Member]

Appalachian Compression, LLC and E2 Energy Services, LLC [Member]

Appalachian Compression, LLC and E2 Energy Services, LLC [Member]

Public Unitholders [Member]

EnLink [Member]

USD ($)

Public Unitholders [Member]

Partnership [Member]

USD ($)

acre

USD ($)

Forecast [Member]

Subsequent Event [Member]

Subsequent Event [Member]

USD ($)

USD ($)

Business Acquisition [Line Items]

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Cash payment to acquire interest

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

$163,000,000

'

'

'

'

$100,000,000

'

'

'

'

'

Ownership percentage

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

52.00%

41.00%

7.00%

'

70.00%

30.00%

50.00%

50.00%

'

Close date of acquisition

'

'

'

'

'

'

'

'

'

'

'

'

'

7-Mar-14

'

28-Feb-14

'

1-Nov-14

'

'

1-Oct-14

'

'

'

'

'

'

'

'

'

Date of acquisition agreement

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

20-Nov-13

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Aggregate purchase price

'

'

'

'

'

'

'

'

'

'

'

'

'

'

6,000,000,000

'

'

'

235,000,000

193,000,000

'

'

'

'

'

'

'

'

'

'

Partnership common units value

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

2,825,000,000

'

'

30,000,000

'

'

'

'

'

'

'

'

'

'

Units issued for acquisition

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

1

'

'

'

'

'

'

'

'

'

'

Number of acres acquired

'

'

'

'

'

'

'

'

'

'

'

'

'

'

82,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Gains and losses on asset sales

'

-11,000,000

'

1,072,000,000

-11,000,000

'

'

'

'

'

1,100,000,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Gains and losses on assets sales after tax

'

'

'

'

'

'

'

'

'

'

600,000,000

'

0

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Decrease in goodwill for sale of assets

'

'

'

'

'

'

'

'

'

'

-700,000,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Foreign currency exchange loss

-84,000,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Loss on derivative

'

'

'

'

'

29,000,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Foreign earnings repatriated

2,800,000,000

'

2,000,000,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Proceeds from property and equipment divestitures

'

'

'

5,202,000,000

316,000,000

'

2,800,000,000

3,125,000,000

142,000,000

155,000,000

'

2,300,000,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Proceeds after tax from property and equipment divestitures

'

'

'

'

'

'

'

'

'

'

'

1,700,000,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Asset retirement obligation transferred

'

'

'

949,000,000

15,000,000

'

'

'

'

'

700,000,000

200,000,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Repayment of commercial paper

700,000,000

'

'

1,300,000,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Long term debt repayment

'

'

'

$4,265,000,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

$2,000,000,000

Acquisitions_And_Divestitures_2

Acquisitions And Divestitures (Schedule Of Purchase Price Allocation For EnLink And Partnership) (Details) (EnLink And Partnership [Member], USD $)	0 Months Ended
In Millions, except Per Share data, unless otherwise specified	Mar. 07, 2014
	item
Business Acquisition [Line Items]	'
Total consideration and fair value of noncontrolling interests	$4,664
Current Crosstex Energy, Inc. [Member]	'
Business Acquisition [Line Items]	'
Held by public shareholders	48
Restricted shares	0.4
Total	48.4
Exchange ratio	1
Converted shares	48.4
Common share or unit price	$37.60	[1]
Crosstex Energy, Inc. consideration	1,823
Fair value of noncontrolling interests	12	[2]
Total consideration and fair value of noncontrolling interests	1,835
Partnership [Member]	'
Business Acquisition [Line Items]	'
Total	92.6
Common share or unit price	$30.51	[3]
Common units held by public unitholders	75.1
Preferred units held by third party	17.1	[4]
Restricted units	0.4
Partnership common units value	2,825
Partnership outstanding unit options value	4
Fair value of noncontrolling interests	$2,829	[3]
[1]	The final purchase price is based on the fair value of Crosstex Energy Inc.bs common shares as of the closing date, March 7, 2014.
[2]	Represents the value of noncontrolling interests related to EnLinkbs equity investment in E2 Energy Services, LLC and E2 Appalachian Compression, LLC (collectively bE2b).
[3]	The final purchase price is based on the fair value of the Partnershipbs common shares as of the closing date, March 7, 2014.
[4]	The Partnership converted the preferred units to common units in February 2014.

Acquisitions_And_Divestitures_3

Acquisitions And Divestitures (Schedule Of Purchase Price Allocation For EnLink) (Details) (USD $)	Sep. 30, 2014	Dec. 31, 2013	Mar. 07, 2014
In Millions, unless otherwise specified			EnLink [Member]
Assets acquired:	'	'	'
Current assets	'	'	$438
Property, plant and equipment, net	'	'	2,438
Intangible assets	'	'	547
Equity investment	'	'	222
Goodwill	8,310	5,858	3,292	[1]
Other long-term assets	'	'	1
Liabilities assumed:	'	'	'
Current liabilities	'	'	-516
Long-term debt	'	'	-1,454
Deferred income taxes	'	'	-203
Other long-term liabilities	'	'	-101
Total consideration and fair value of noncontrolling interests	'	'	$4,664
[1]	Goodwill is the excess of the consideration transferred over the net assets recognized and represents the future economic benefits arising from other assets acquired that could not be individually identified and separately recognized. Goodwill is not amortized and is not deductible for tax purposes.

Acquisitions_And_Divestitures_4

Acquisitions And Divestitures (Schedule Of Purchase Price Allocation For GeoSouthern Intermediate Holdings) (Details) (GeoSouthern Intermediate Holdings, LLC [Member], USD $)	Feb. 28, 2014
In Millions, unless otherwise specified
GeoSouthern Intermediate Holdings, LLC [Member]	'
Business Acquisition [Line Items]	'
Cash and cash equivalents	$95
Other current assets	256
Proved properties	5,029
Unproved properties	1,008
Midstream assets	85
Current liabilities	-437
Long-term liabilities	-6
Net assets acquired	$6,030

Acquisitions_And_Divestitures_5

Acquisitions And Divestitures (Schedule Of Revenue And Earnings For EnLink and GeoSouthern) (Details) (USD $)	3 Months Ended		9 Months Ended
In Millions, unless otherwise specified	Sep. 30, 2014	Sep. 30, 2013	Sep. 30, 2014	Sep. 30, 2013
Business Acquisition [Line Items]	'	'	'	'
Total operating revenues	$5,336	$2,714	$13,571	$7,773
Total operating expenses	3,562	1,981	9,333	7,797
Operating income (loss)	1,774	733	4,238	-24
GeoSouthern Intermediate Holdings, LLC [Member]	'	'	'	'
Business Acquisition [Line Items]	'	'	'	'
Total operating revenues	634	'	1,374	'
Total operating expenses	322	'	708	'
Operating income (loss)	312	'	666	'
EnLink [Member]	'	'	'	'
Business Acquisition [Line Items]	'	'	'	'
Total operating revenues	700	'	1,670	'
Total operating expenses	692	'	1,654	'
Operating income (loss)	$8	'	$16	'

Acquisitions_And_Divestitures_6

Acquisitions And Divestitures (Schedule Of Unaudited Proforma Information) (Details) (EnLink And GeoSouthern Intermediate Holdings, LLC [Member], USD $)	9 Months Ended
In Millions, except Per Share data, unless otherwise specified	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)

Derivative_Financial_Instrumen2

Derivative Financial Instruments (Narrative) (Details) (USD $)	Sep. 30, 2014
In Millions, unless otherwise specified
Derivative Financial Instruments [Abstract]	'
Derivative collateral	$31

Derivative_Financial_Instrumen3

Derivative Financial Instruments (Schedule Of Open Oil Derivative Positions) (Details)	9 Months Ended
	Sep. 30, 2014
	bbl
NYMEX West Texas Intermediate Price Swaps Oil Q4 2014 [Member]	'
Derivatives, Fair Value [Line Items]	'
Volume Per Day (Bbls/d)	75,000
Weighted Average Price Swap	94.14
NYMEX West Texas Intermediate Price Collars Oil Q4 2014 [Member]	'
Derivatives, Fair Value [Line Items]	'
Volume Per Day (Bbls/d)	64,750
Weighted Average Floor Price	89.33
Weighted Average Ceiling Price	100
NYMEX West Texas Intermediate Call Options Sold Oil Q4 2014 [Member]	'
Derivatives, Fair Value [Line Items]	'
Volume Per Day (Bbls/d)	42,000
Weighted Average Call Option Sold Price	116.43
NYMEX West Texas Intermediate Price Swaps Oil Q1 - Q4 2015 [Member]	'
Derivatives, Fair Value [Line Items]	'
Volume Per Day (Bbls/d)	106,736
Weighted Average Price Swap	91.22
NYMEX West Texas Intermediate Price Collars Oil Q1 - Q4 2015 [Member]	'
Derivatives, Fair Value [Line Items]	'
Volume Per Day (Bbls/d)	31,500
Weighted Average Floor Price	89.67
Weighted Average Ceiling Price	97.84
NYMEX West Texas Intermediate Call Options Sold Oil Q1 - Q4 2015 [Member]	'
Derivatives, Fair Value [Line Items]	'
Volume Per Day (Bbls/d)	28,000
Weighted Average Call Option Sold Price	116.43
NYMEX West Texas Intermediate Call Options Sold Oil Q1 - Q4 2016 [Member]	'
Derivatives, Fair Value [Line Items]	'
Volume Per Day (Bbls/d)	18,500
Weighted Average Call Option Sold Price	103.11
Western Canadian Select Basis Swaps Oil Q4 2014 [Member]	'
Derivatives, Fair Value [Line Items]	'
Volume Per Day (Bbls/d)	50,000
Weighted Average Differential To WTI	-17.4
Western Canadian Select Basis Swaps Oil Q1 - Q4 2015 [Member]	'
Derivatives, Fair Value [Line Items]	'
Volume Per Day (Bbls/d)	14,890
Weighted Average Differential To WTI	-18.92

Derivative_Financial_Instrumen4

Derivative Financial Instruments (Schedule Of Open Natural Gas Derivative Positions) (Details)	9 Months Ended
	Sep. 30, 2014
	MMBTU
FERC Henry Hub Price Swaps Natural Gas Q4 2014 [Member]	'
Derivatives, Fair Value [Line Items]	'
Volume Per Day (MMBtu/d)	800,000
Weighted Average Price Swap	4.42
FERC Henry Hub Price Collars Natural Gas Q4 2014 [Member]	'
Derivatives, Fair Value [Line Items]	'
Volume Per Day (MMBtu/d)	460,000
Weighted Average Floor Price	4.03
Weighted Average Ceiling Price	4.51
FERC Henry Hub Call Options Sold Natural Gas Q4 2014 [Member]	'
Derivatives, Fair Value [Line Items]	'
Volume Per Day (MMBtu/d)	500,000
Weighted Average Call Option Sold Price	5
FERC Henry Hub Price Swaps Natural Gas Q1- Q4 2015 [Member]	'
Derivatives, Fair Value [Line Items]	'
Volume Per Day (MMBtu/d)	210,000
Weighted Average Price Swap	4.38
FERC Henry Hub Price Collars Natural Gas Q1- Q4 2015 [Member]	'
Derivatives, Fair Value [Line Items]	'
Volume Per Day (MMBtu/d)	260,000
Weighted Average Floor Price	4.05
Weighted Average Ceiling Price	4.36
FERC Henry Hub Call Options Sold Natural Gas Q1- Q4 2015 [Member]	'
Derivatives, Fair Value [Line Items]	'
Volume Per Day (MMBtu/d)	550,000
Weighted Average Call Option Sold Price	5.09
FERC Henry Hub Call Options Sold Natural Gas Q1- Q4 2016 [Member]	'
Derivatives, Fair Value [Line Items]	'
Volume Per Day (MMBtu/d)	400,000
Weighted Average Call Option Sold Price	5
AECO Basis Swaps Natural Gas Q4 2014 [Member]	'
Derivatives, Fair Value [Line Items]	'
Volume Per Day (MMBtu/d)	94,781
Weighted Average Differential To Henry Hub	-0.52
PEPL Basis Swaps Natural Gas Q1 - Q4 2015 [Member]	'
Derivatives, Fair Value [Line Items]	'
Volume Per Day (MMBtu/d)	100,000
Weighted Average Differential To Henry Hub	-0.28

Derivative_Financial_Instrumen5

Derivative Financial Instruments (Schedule Of Open Interest Rate Swap Derivative Positions) (Details) (USD $)	9 Months Ended
In Millions, unless otherwise specified	Sep. 30, 2014
Interest Rate Contract Expiration December 2016 [Member]	'
Derivative [Line Items]	'
Notional	$100
Rate Received	'Three Month LIBOR
Rate Paid	'0.92%
Expiration	1-Dec-16
Interest Rate Contract Expiration January 2019 [Member]	'
Derivative [Line Items]	'
Notional	$100
Rate Received	'1.76%
Rate Paid	'Three Month LIBOR
Expiration	1-Jan-19

Derivative_Financial_Instrumen6

Derivative Financial Instruments (Schedule Of Open Foreign Exchange Rate Derivative Positions) (Details) (Forward Contract Expiration December 2014 [Member], CAD)	9 Months Ended
In Millions, unless otherwise specified	Sep. 30, 2014
Forward Contract Expiration December 2014 [Member]	'
Derivative [Line Items]	'
Currency	'Canadian Dollar
Contract Type	'Sell
CAD Notional	1,312
Weighted Average Fixed Rate Received	0.899
Expiration	1-Dec-14

Derivative_Financial_Instrumen7

Derivative Financial Instruments (Schedule Of Derivative Financial Instruments Included In The Consolidated Comprehensive Statement Of Earnings) (Details) (USD $)	3 Months Ended		9 Months Ended
In Millions, unless otherwise specified	Sep. 30, 2014	Sep. 30, 2013	Sep. 30, 2014	Sep. 30, 2013
Derivatives, Fair Value [Line Items]	'	'	'	'
Net gain (losses) recognized in comprehensive statements of earnings	$804	($168)	$43	($65)
Commodity Derivatives [Member]	'	'	'	'
Derivatives, Fair Value [Line Items]	'	'	'	'
Net gain (losses) recognized in comprehensive statements of earnings	748	-141	29	-95
Interest Rate Derivatives [Member]	'	'	'	'
Derivatives, Fair Value [Line Items]	'	'	'	'
Net gain (losses) recognized in comprehensive statements of earnings	'	1	1	1
Foreign Currency Derivatives [Member]	'	'	'	'
Derivatives, Fair Value [Line Items]	'	'	'	'
Net gain (losses) recognized in comprehensive statements of earnings	55	-28	15	29
EnLink [Member] | Commodity Derivatives [Member]	'	'	'	'
Derivatives, Fair Value [Line Items]	'	'	'	'
Net gain (losses) recognized in comprehensive statements of earnings	$1	'	($2)	'

Derivative_Financial_Instrumen8

Derivative Financial Instruments (Schedule Of Derivative Financial Instruments Included In The Consolidated Balance Sheets) (Details) (USD $)	Sep. 30, 2014	Dec. 31, 2013
In Millions, unless otherwise specified
Derivatives, Fair Value [Line Items]	'	'
Fair value of derivative assets	$310	$103
Fair value of derivative liabilities	84	121
Commodity Derivatives [Member] | Other Current Assets [Member]	'	'
Derivatives, Fair Value [Line Items]	'	'
Fair value of derivative assets	231	75
Commodity Derivatives [Member] | Other Long-Term Assets [Member]	'	'
Derivatives, Fair Value [Line Items]	'	'
Fair value of derivative assets	66	28
Commodity Derivatives [Member] | Other Current Liabilities [Member]	'	'
Derivatives, Fair Value [Line Items]	'	'
Fair value of derivative liabilities	30	58
Commodity Derivatives [Member] | Other Long-Term Liabilities [Member]	'	'
Derivatives, Fair Value [Line Items]	'	'
Fair value of derivative liabilities	50	62
Interest Rate Derivatives [Member] | Other Current Assets [Member]	'	'
Derivatives, Fair Value [Line Items]	'	'
Fair value of derivative assets	1	'
Interest Rate Derivatives [Member] | Other Current Liabilities [Member]	'	'
Derivatives, Fair Value [Line Items]	'	'
Fair value of derivative liabilities	1	'
Interest Rate Derivatives [Member] | Other Long-Term Liabilities [Member]	'	'
Derivatives, Fair Value [Line Items]	'	'
Fair value of derivative liabilities	1	'
Foreign Currency Derivatives [Member] | Other Current Assets [Member]	'	'
Derivatives, Fair Value [Line Items]	'	'
Fair value of derivative assets	11	'
Foreign Currency Derivatives [Member] | Other Current Liabilities [Member]	'	'
Derivatives, Fair Value [Line Items]	'	'
Fair value of derivative liabilities	'	1
EnLink [Member] | Commodity Derivatives [Member] | Other Current Assets [Member]	'	'
Derivatives, Fair Value [Line Items]	'	'
Fair value of derivative assets	1	'
EnLink [Member] | Commodity Derivatives [Member] | Other Current Liabilities [Member]	'	'
Derivatives, Fair Value [Line Items]	'	'
Fair value of derivative liabilities	1	'
EnLink [Member] | Commodity Derivatives [Member] | Other Long-Term Liabilities [Member]	'	'
Derivatives, Fair Value [Line Items]	'	'
Fair value of derivative liabilities	$1	'

ShareBased_Compensation_Narrat

Share-Based Compensation (Narrative) (Details) (USD $)	9 Months Ended
In Millions, unless otherwise specified	Sep. 30, 2014	Sep. 30, 2013
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]	'	'
Unit-based compensation	$155	$118
Restricted Stock Awards And Units [Member]	'	'
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]	'	'
Unrecognized compensation cost related to unvested awards, units and stock options	225	'
Weighted average period for recognition of cost of unvested awards, units and stock options	'2 years 4 months 24 days	'
Performance-Based Restricted Stock Awards [Member]	'	'
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]	'	'
Unrecognized compensation cost related to unvested awards, units and stock options	7	'
Weighted average period for recognition of cost of unvested awards, units and stock options	'1 year 4 months 24 days	'
Performance Share Units [Member]	'	'
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]	'	'
Unrecognized compensation cost related to unvested awards, units and stock options	40	'
Weighted average period for recognition of cost of unvested awards, units and stock options	'1 year 7 months 6 days	'
EnLink [Member]	'	'
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]	'	'
Unit-based compensation	$11	'

ShareBased_Compensation_Schedu

Share-Based Compensation (Schedule Of The Effects Of Share Based Compensation Included In The Consolidated Comprehensive Statement Of Earnings) (Details) (USD $)	9 Months Ended
In Millions, unless otherwise specified	Sep. 30, 2014	Sep. 30, 2013
Share-based Compensation [Abstract]	'	'
Gross general and administrative expense	$155	$118
Share-based compensation expense capitalized pursuant to the full-cost method of accounting for oil and gas properties	40	44
Related income tax benefit	$20	$17

ShareBased_Compensation_Summar

Share-Based Compensation (Summary Of Unvested Restricted Stock Awards And Units, Including Changes During The Year) (Details) (Restricted Stock Awards And Units [Member], USD $)	9 Months Ended
In Thousands, except Per Share data, unless otherwise specified	Sep. 30, 2014
Restricted Stock Awards And Units [Member]	'
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]	'
Unvested at December 31, 2013	3,292
Granted, awards and units	3,412
Vested, awards and units	-558
Forfeited, awards and units	-607
Unvested at September 30, 2014	5,539
Unvested weighted average grant-date fair value at December 31, 2013	$59.76
Granted, weighted average grant-date fair value	$63.53
Vested, weighted average grant-date fair value	$60.65
Forfeited, weighted average grant-date fair value	$60.96
Unvested weighted average grant-date fair value at September 30, 2014	$61.73

ShareBased_Compensation_Summar1

Share-Based Compensation (Summary Of Performance-Based Restricted Stock Awards) (Details) (Performance-Based Restricted Stock Awards [Member], USD $)	9 Months Ended
In Thousands, except Per Share data, unless otherwise specified	Sep. 30, 2014
Performance-Based Restricted Stock Awards [Member]	'
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]	'
Unvested at December 31, 2013	316
Granted, awards	234
Vested, awards	-75
Unvested at September 30, 2014	475
Unvested weighted average grant-date fair value at December 31, 2013	$56.25
Granted, weighted average grant-date fair value	$61.33
Vested, weighted average grant-date fair value	$53.45
Unvested weighted average grant-date fair value at September 30, 2014	$59.20

ShareBased_Compensation_Summar2

Share-Based Compensation (Summary Of The Grant Date Fair Values Of Performance Share Units) (Details) (Performance Share Units [Member], USD $)	9 Months Ended
	Sep. 30, 2014
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]	'
Granted, grant-date fair value	$77.77
Risk-free interest rate	0.54%
Volatility factor	28.80%
Contractual term (in years)	'2 years 10 months 21 days
Minimum [Member]	'
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]	'
Granted, grant-date fair value	$70.18
Maximum [Member]	'
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]	'
Granted, grant-date fair value	$81.05

ShareBased_Compensation_Summar3

Share-Based Compensation (Summary Of Performance Share Units) (Details) (Performance Share Units [Member], USD $)	9 Months Ended
	Sep. 30, 2014
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]	'
Unvested at December 31, 2013	925,000
Granted, units	708,000
Forfeited, units	-147,000
Unvested at September 30, 2014	1,486,000	[1]
Unvested weighted average grant-date fair value at December 31, 2013	$66.64
Granted, weighted average grant-date fair value	$77.77
Forfeited, weighted average grant-date fair value	$77.25
Unvested weighted average grant-date fair value at September 30, 2014	$70.89	[1]
Maximum [Member]	'
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]	'
Granted, weighted average grant-date fair value	$81.05
Maximum [Member] | Forecast [Member]	'
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]	'
Maximum common shares awarded based upon total shareholder return	3,000,000
[1]	A maximum of 3.0 millionB common shares could be awarded based upon Devonbs final total shareholder return ranking.

Asset_Impairments_Details

Asset Impairments (Details) (USD $)	3 Months Ended	9 Months Ended
In Millions, unless otherwise specified	Sep. 30, 2013	Sep. 30, 2013
Impaired Long-Lived Assets Held and Used [Line Items]	'	'
Asset impairment charges, gross	$7	$1,960
Asset impairment charges, net of taxes	'	1,343
U.S. Oil And Gas Assets [Member]	'	'
Impaired Long-Lived Assets Held and Used [Line Items]	'	'
Asset impairment charges, gross	'	1,110
Asset impairment charges, net of taxes	'	707
Canada Oil And Gas Assets [Member]	'	'
Impaired Long-Lived Assets Held and Used [Line Items]	'	'
Asset impairment charges, gross	'	843
Asset impairment charges, net of taxes	'	632
Midstream Assets [Member]	'	'
Impaired Long-Lived Assets Held and Used [Line Items]	'	'
Asset impairment charges, gross	'	7
Asset impairment charges, net of taxes	'	$4

Restructuring_Costs_Narrative_

Restructuring Costs (Narrative) (Details) (USD $)	3 Months Ended		9 Months Ended			3 Months Ended	9 Months Ended
In Millions, unless otherwise specified	Sep. 30, 2014	Sep. 30, 2013	Sep. 30, 2014	Sep. 30, 2013	Dec. 31, 2013	Sep. 30, 2014	Sep. 30, 2014	Sep. 30, 2014
					Office Consolidation [Member]	Employee Related And Other Costs [Member]	Employee Related And Other Costs [Member]	Accelerated Vesting Of Share-Based Grants For Employees [Member]
						Canada Divestiture [Member]	Canada Divestiture [Member]	Canada Divestiture [Member]
Restructuring Cost and Reserve [Line Items]	'	'	'	'	'	'	'	'
Restructuring charges	$2	$4	$44	$50	'	$2	$44	$15
Restructuring costs incurred to date	'	'	'	'	$134	'	'	'

Restructuring_Costs_Schedule_O

Restructuring Costs (Schedule Of The Components Of Restructuring Costs Included In The Consolidated Statements Of Earnings) (Details) (USD $)	3 Months Ended		9 Months Ended
In Millions, unless otherwise specified	Sep. 30, 2014	Sep. 30, 2013	Sep. 30, 2014	Sep. 30, 2013
Restructuring Cost and Reserve [Line Items]	'	'	'	'
Restructuring costs	$2	$4	$44	$50
Employee Related And Other Costs [Member] | Canada Divestiture [Member]	'	'	'	'
Restructuring Cost and Reserve [Line Items]	'	'	'	'
Restructuring costs	2	'	44	'
Lease Obligations And Other [Member] | Office Consolidation [Member]	'	'	'	'
Restructuring Cost and Reserve [Line Items]	'	'	'	'
Restructuring costs	'	$4	'	$50

Restructuring_Costs_Schedule_O1

Restructuring Costs (Schedule Of The Activity And Balances Associated With Restructuring Liabilities) (Details) (USD $)

Sep. 30, 2014

Dec. 31, 2013

Sep. 30, 2013

Dec. 31, 2012

Sep. 30, 2014

Dec. 31, 2013

Sep. 30, 2013

Dec. 31, 2012

Sep. 30, 2014

Dec. 31, 2013

Sep. 30, 2013

Dec. 31, 2012

Sep. 30, 2014

Sep. 30, 2014

Sep. 30, 2014

Sep. 30, 2014

Sep. 30, 2013

Sep. 30, 2014

Sep. 30, 2013

Sep. 30, 2014

Sep. 30, 2013

Sep. 30, 2014

Sep. 30, 2013

Sep. 30, 2014

Sep. 30, 2013

Sep. 30, 2014

Sep. 30, 2013

In Millions, unless otherwise specified

Other Current Liabilities [Member]

Other Current Liabilities [Member]

Other Current Liabilities [Member]

Other Current Liabilities [Member]

Other Long-Term Liabilities [Member]

Other Long-Term Liabilities [Member]

Other Long-Term Liabilities [Member]

Other Long-Term Liabilities [Member]

Canada Divestiture [Member]

Canada Divestiture [Member]

Canada Divestiture [Member]

Office Consolidation [Member]

Office Consolidation [Member]

Office Consolidation [Member]

Office Consolidation [Member]

Office Consolidation [Member]

Office Consolidation [Member]

Offshore Divestiture [Member]

Offshore Divestiture [Member]

Offshore Divestiture [Member]

Offshore Divestiture [Member]

Offshore Divestiture [Member]

Offshore Divestiture [Member]

Other Current Liabilities [Member]

Other Long-Term Liabilities [Member]

Other Current Liabilities [Member]

Other Current Liabilities [Member]

Other Long-Term Liabilities [Member]

Other Long-Term Liabilities [Member]

Other Current Liabilities [Member]

Other Current Liabilities [Member]

Other Long-Term Liabilities [Member]

Other Long-Term Liabilities [Member]

Restructuring Cost and Reserve [Line Items]

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Beginning balance

$23

$45

$53

$61

$5

$27

$34

$52

$18

$18

$19

$9

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Restructuring reserve activity

'

'

'

'

'

'

'

'

'

'

'

'

4

2

2

-23

-5

-22

-16

-1

11

-3

-3

-2

-2

-1

-1

Ending balance

$23

$45

$53

$61

$5

$27

$34

$52

$18

$18

$19

$9

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Income_Taxes_Narrative_Details

Income Taxes (Narrative) (Details) (USD $)	3 Months Ended				9 Months Ended
	Sep. 30, 2014	Jun. 30, 2014	Sep. 30, 2013	Jun. 30, 2013	Sep. 30, 2014	Sep. 30, 2013	Mar. 31, 2014
Income Tax [Line Items]	'	'	'	'	'	'	'
Current income tax expense (benefit)	'	'	'	$100,000,000	'	'	'
Foreign earnings repatriated	'	2,800,000,000	'	2,000,000,000	'	'	'
Deferred tax liabilities, taxes on unremitted foreign earnings	'	143,000,000	'	'	'	'	'
Deferred tax liability on formation of EnLink	'	'	'	'	'	'	48,000,000
Income tax expense (benefit)	613,000,000	'	210,000,000	'	1,698,000,000	-99,000,000	'
Repatriated Foreign Earnings [Member]	'	'	'	'	'	'	'
Income Tax [Line Items]	'	'	'	'	'	'	'
Income tax expense (benefit)	'	247,000,000	'	'	'	'	'
U.S. Non-Core Asset Divestiture [Member]	'	'	'	'	'	'	'
Income Tax [Line Items]	'	'	'	'	'	'	'
Current income tax expense (benefit)	$543,000,000	'	'	'	'	'	'

Income_Taxes_Schedule_Of_Effec

Income Taxes (Schedule Of Effective Income Tax Reconciliation) (Details) (USD $)	3 Months Ended		9 Months Ended
In Millions, unless otherwise specified	Sep. 30, 2014	Sep. 30, 2013	Sep. 30, 2014	Sep. 30, 2013
Income Taxes [Abstract]	'	'	'	'
Total income tax expense (benefit)	$613	$210	$1,698	($99)
U.S. statutory income tax rate	35.00%	35.00%	35.00%	-35.00%
Repatriations	'	'	7.00%	'
State income taxes	2.00%	1.00%	1.00%	-3.00%
Taxation on Canadian operations	'	-5.00%	1.00%	9.00%
Taxes on EnLink formation	'	'	1.00%	'
Other	'	2.00%	'	-1.00%
Effective income tax rate	37.00%	33.00%	45.00%	-30.00%

Earnings_Loss_Per_Share_Attrib2

Earnings (Loss) Per Share Attributable To Devon (Earnings Per Share Computations) (Details) (USD $)	3 Months Ended		9 Months Ended
In Millions, except Per Share data, unless otherwise specified	Sep. 30, 2014	Sep. 30, 2013	Sep. 30, 2014	Sep. 30, 2013
Net earnings (loss) per share attributable to Devon:	'	'	'	'
Net earnings (loss) attributable to Devon	$1,016	$429	$2,015	($227)
Net earnings (loss) attributable to Devon, Common Shares	409	406	408	406
Attributable to participating securities, Earnings (loss)	-11	-4	-20	-2
Attributable to participating securities, Common Shares	-4	-4	-4	-4
Basic earnings (loss) per share, Earnings (loss)	1,005	425	1,995	-229
Basic earnings (loss) per share, Common Shares	405	402	404	402
Basic earnings (loss) per share, Earnings (loss) per Share	$2.48	$1.06	$4.94	($0.57)
Dilutive effect of potential common shares issuable, Common Shares	2	1	2	'
Diluted earnings (loss) per share, Earnings (loss)	$1,005	$425	$1,995	($229)
Diluted earnings (loss) per share, Common Shares	407	403	406	402
Diluted earnings (loss) per share, Earnings (loss) Per Share	$2.47	$1.05	$4.91	($0.57)
Antidilutive securities excluded from computation of earnings per share, amount	1.1	7.5	3.2	7.6

Other_Comprehensive_Earnings_C

Other Comprehensive Earnings (Components Of Other Comprehensive Earnings) (Details) (USD $)	3 Months Ended				9 Months Ended
In Millions, unless otherwise specified	Sep. 30, 2014		Sep. 30, 2013		Sep. 30, 2014		Sep. 30, 2013		Dec. 31, 2013
Foreign currency translation:	'		'		'		'		'
Beginning accumulated foreign currency translation	$1,442		$1,542		$1,448		$1,996		'
Change in cumulative translation adjustment	-299		182		-306		-294		'
Income tax benefit (expense)	20		-9		21		13		'
Ending accumulated foreign currency translation	1,163		1,715		1,163		1,715		'
Pension and postretirement benefit plans:	'		'		'		'		'
Beginning accumulated pension and postretirement benefits	-172		-216		-180		-225		'
Recognition of net actuarial loss and prior service cost in earnings	4	[1]	6	[1]	15	[1]	18	[1]	'
Income tax expense	-2		-3		-5		-6		'
Ending accumulated pension and postretirement benefits	-170		-213		-170		-213		'
Accumulated other comprehensive earnings, net of tax	$993		$1,502		$993		$1,502		$1,268
[1]	These accumulated other comprehensive earnings components are included in the computation of net periodic benefit cost, which is a component of general and administrative expenses on the accompanying comprehensive statements of earnings (see Note 15 for additional details).

Supplemental_Information_To_Ca

Supplemental Information To Cash Flows (Schedule Of Supplemental To Cash Flow Information) (Details) (USD $)	9 Months Ended		0 Months Ended
In Millions, unless otherwise specified	Sep. 30, 2014	Sep. 30, 2013	Mar. 07, 2014
			EnLink [Member]
Net change in working capital accounts:	'	'	'
Accounts receivable	($25)	($287)	'
Other current assets	-120	72	'
Accounts payable	-118	127	'
Income taxes payable	704	7	'
Revenues and royalties payable	381	56	'
Other current liabilities	-56	-79	'
Net change in working capital	766	-104	'
Interest paid (net of capitalized interest)	355	342	'
Income taxes paid (received)	214	-2	'
Cash payment to acquire interest	'	'	$100

Accounts_Receivable_Schedule_O

Accounts Receivable (Schedule Of Components Of Accounts Receivable) (Details) (USD $)	Sep. 30, 2014	Dec. 31, 2013
In Millions, unless otherwise specified
Accounts, Notes, Loans and Financing Receivable [Line Items]	'	'
Joint interest billings	$393	$447
Other	54	61
Gross accounts receivable	2,020	1,531
Allowance for doubtful accounts	-11	-11
Net accounts receivable	2,009	1,520
Oil, Gas And NGL Sales [Member]	'	'
Accounts, Notes, Loans and Financing Receivable [Line Items]	'	'
Gross accounts receivable	899	851
Marketing And Midstream Revenues [Member]	'	'
Accounts, Notes, Loans and Financing Receivable [Line Items]	'	'
Gross accounts receivable	$674	$172

Goodwill_Narrative_Details

Goodwill (Narrative) (Details) (USD $)	9 Months Ended
	Sep. 30, 2014	Dec. 31, 2013
Goodwill [Line Items]	'	'
Goodwill	$8,310,000,000	$5,858,000,000
EnLink [Member]	'	'
Goodwill [Line Items]	'	'
Goodwill	3,695,000,000	402,000,000
Increase in goodwill due to contribution to EnLink	$3,300,000,000	'

Goodwill_Schedule_Of_Goodwill_

Goodwill (Schedule Of Goodwill By Reporting Segment) (Details) (USD $)	Sep. 30, 2014	Dec. 31, 2013
In Millions, unless otherwise specified
Goodwill [Line Items]	'	'
Goodwill	$8,310	$5,858
United States [Member]	'	'
Goodwill [Line Items]	'	'
Goodwill	2,618	2,618
Canada [Member]	'	'
Goodwill [Line Items]	'	'
Goodwill	1,997	2,838
EnLink [Member]	'	'
Goodwill [Line Items]	'	'
Goodwill	$3,695	$402

Debt_Narrative_Details

Debt (Narrative) (Details) (USD $)

3 Months Ended

9 Months Ended

0 Months Ended

0 Months Ended

9 Months Ended

9 Months Ended

9 Months Ended

Jun. 30, 2014

Sep. 30, 2014

Dec. 31, 2013

Sep. 30, 2014

Sep. 30, 2014

Feb. 28, 2014

Feb. 28, 2014

Sep. 30, 2014

Mar. 07, 2014

Sep. 30, 2014

Sep. 30, 2014

Sep. 30, 2014

Sep. 30, 2014

Sep. 30, 2014

Sep. 30, 2014

Sep. 30, 2014

Sep. 30, 2014

Sep. 30, 2014

Sep. 30, 2014

Senior Credit Facility [Member]

Maximum [Member]

GeoSouthern Intermediate Holdings, LLC [Member]

GeoSouthern Intermediate Holdings, LLC [Member]

E2 Energy Services LLC [Member]

EnLink [Member]

EnLink [Member]

EnLink [Member]

EnLink [Member]

EnLink [Member]

EnLink [Member]

EnLink [Member]

EnLink [Member]

EnLink [Member]

EnLink [Member]

EnLink [Member]

Senior Credit Facility [Member]

Term Loan [Member]

Unsecured Revolving Credit Facility [Member]

Unsecured Letter Of Credit Subfacility [Member]

Credit Facilities [Member]

Letter Of Credit Subfacility [Member]

Minimum [Member]

Maximum [Member]

Maximum [Member]

Maximum [Member]

Maximum [Member]

E2 Energy Services LLC [Member]

Credit Facilities [Member]

Unsecured Revolving Credit Facility [Member]

Unsecured Revolving Credit Facility [Member]

Credit Facilities [Member]

Credit Facilities [Member]

Addtional Credit Agreement [Member]

item

item

Acquisition Period [Member]

item

Acquisition Period [Member]

item

item

Debt Instrument [Line Items]

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Outstanding commercial paper

'

$0

$1,317,000,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Repayment of commercial paper

700,000,000

1,300,000,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Credit Facility, borrowing capacity

'

'

'

3,000,000,000

'

'

'

'

'

1,000,000,000

500,000,000

250,000,000

125,000,000

'

'

'

'

'

30,000,000

Credit Facility, remaining borrowing capacity

'

'

'

'

'

'

'

'

'

615,000,000

'

'

'

'

'

'

'

'

'

Outstanding Credit Facility borrowings

'

'

'

0

'

'

'

'

'

371,000,000

14,000,000

81,000,000

'

'

'

'

'

'

26,000,000

Covenant description

'

'

'

'

'

'

'

'

'

'The credit facility contains certain financial, operational and legal covenants. Among other things, these covenants include maintaining a ratio of consolidated indebtedness to EnLink's consolidated EBITDA (as defined in the credit facility, which definition includes projected EnLink EBITDA from certain capital expansion projects) of no more than 5.0 to 1.0. If EnLink consummates one or more acquisitions in which the aggregate purchase price is $50 million or more, the maximum allowed ratio of consolidated indebtedness to EnLink's consolidated EBITDA will increase to 5.5 to 1.0 for the quarter of the acquisition and the three following quarters.

'

'The financial covenants will be tested on a quarterly basis, based on the rolling four-quarter period that ends on the last day of each fiscal quarter, and include (i)B maintaining a maximum consolidated leverage ratio (as defined in the credit facility, but generally computed as the ratio of consolidated funded indebtedness to consolidated earnings before interest, taxes, depreciation, amortization and certain other non-cash charges) of 4.00 to 1.00, provided that the maximum consolidated leverage ratio is 4.50 to 1.00 during an acquisition period (as defined in the credit facility) and (ii)B maintaining a minimum consolidated interest coverage ratio (as defined in the credit facility, but generally computed as the ratio of consolidated earnings before interest, taxes, depreciation, amortization and certain other non-cash charges to consolidated interest charges) of 2.50 to 1.00 at all times prior to the occurrence of an investment grade event (as defined in the credit facility).

'

'

'

'

'

'

'

Debt-to-capitalization ratio

'

'

'

0.227

0.65

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Ratio of consolidated indebtness

'

'

'

'

'

'

'

'

'

'

'

'

'

'

5

5.5

'

'

'

Aggregate purchase price of acquisitions

'

'

'

'

'

6,000,000,000

'

'

'

50,000,000

'

'

'

'

'

'

'

'

'

Promissory note for vehicle fleet

'

'

'

'

'

'

'

400,000

'

'

'

'

'

'

'

'

'

'

'

Consolidated leverage ratio

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

4

4.5

'

Ratio of consolidated earnings to consolidated interest charges

'

'

'

'

'

'

'

'

'

'

'

'

'

2.5

'

'

'

'

'

Debt instrument, face amount

'

'

'

'

'

'

2,000,000,000

'

'

'

'

'

'

'

'

'

'

'

'

Debt, maturity date

'

'

'

'

'

'

'

'

'

7-Mar-19

'

7-Mar-19

'

'

'

'

'

'

'

Fair value of debt assumed

'

'

'

'

'

'

'

'

$1,454,000,000

'

'

'

'

'

'

'

'

'

'

Debt_Schedule_Of_Debt_Instrume

Debt (Schedule Of Debt Instruments) (Details) (USD $)	9 Months Ended		12 Months Ended
In Millions, unless otherwise specified	Sep. 30, 2014		Dec. 31, 2013
Debt Instrument [Line Items]	'		'
Commercial paper	$0		$1,317
Net discount on debentures and notes	-20		-20
Total debt	12,059		12,022
Less amount classified as short-term debt	1,898	[1]	4,066	[1]
Long-term debt	10,161		7,956
5.625% Due January 15, 2014 [Member]	'		'
Debt Instrument [Line Items]	'		'
Debt interest rate, stated percentage	5.63%		5.63%
Debt, maturity date	15-Jan-14		15-Jan-14
Short-term debt	'		500
Floating Rate Due December 15, 2015 [Member]	'		'
Debt Instrument [Line Items]	'		'
Debt, maturity date	15-Dec-15		15-Dec-15
Short-term debt	'		500
Long term debt, gross	500		'
2.40% Due July 15, 2016 [Member]	'		'
Debt Instrument [Line Items]	'		'
Debt interest rate, stated percentage	2.40%		2.40%
Debt, maturity date	15-Jul-16		15-Jul-16
Short-term debt	500		'
Long term debt, gross	'		500
Floating Rate Due December 15, 2016 [Member]	'		'
Debt Instrument [Line Items]	'		'
Debt, maturity date	15-Dec-16		15-Dec-16
Short-term debt	'		350
Long term debt, gross	350		'
1.20% Due December 15, 2016 [Member]	'		'
Debt Instrument [Line Items]	'		'
Debt interest rate, stated percentage	1.20%		1.20%
Debt, maturity date	15-Dec-16		15-Dec-16
Short-term debt	650		650
1.875% due May 15, 2017 [Member]	'		'
Debt Instrument [Line Items]	'		'
Debt interest rate, stated percentage	1.88%		1.88%
Debt, maturity date	15-May-17		15-May-17
Short-term debt	750		'
Long term debt, gross	'		750
8.25% Due July 1, 2018 [Member]	'		'
Debt Instrument [Line Items]	'		'
Debt interest rate, stated percentage	8.25%		8.25%
Debt, maturity date	1-Jul-18		1-Jul-18
Long term debt, gross	125		125
2.25% Due December 15, 2018 [Member]	'		'
Debt Instrument [Line Items]	'		'
Debt interest rate, stated percentage	2.25%		2.25%
Debt, maturity date	15-Dec-18		15-Dec-18
Short-term debt	'		750
Long term debt, gross	750		'
6.30% Due January 15, 2019 [Member]	'		'
Debt Instrument [Line Items]	'		'
Debt interest rate, stated percentage	6.30%		6.30%
Debt, maturity date	15-Jan-19		15-Jan-19
Long term debt, gross	700		700
4.00% Due July 15, 2021 [Member]	'		'
Debt Instrument [Line Items]	'		'
Debt interest rate, stated percentage	4.00%		4.00%
Debt, maturity date	15-Jul-21		15-Jul-21
Long term debt, gross	500		500
3.25% due May 15, 2022 [Member]	'		'
Debt Instrument [Line Items]	'		'
Debt interest rate, stated percentage	3.25%		3.25%
Debt, maturity date	15-May-22		15-May-22
Long term debt, gross	1,000		1,000
7.50% Due September 15, 2027 [Member]	'		'
Debt Instrument [Line Items]	'		'
Debt interest rate, stated percentage	7.50%		7.50%
Debt, maturity date	15-Sep-27		15-Sep-27
Long term debt, gross	150		150
7.875% Due September 30, 2031 [Member]	'		'
Debt Instrument [Line Items]	'		'
Debt interest rate, stated percentage	7.88%		7.88%
Debt, maturity date	30-Sep-31		30-Sep-31
Long term debt, gross	1,250		1,250
7.95% due April 15, 2032 [Member]	'		'
Debt Instrument [Line Items]	'		'
Debt interest rate, stated percentage	7.95%		7.95%
Debt, maturity date	15-Apr-32		15-Apr-32
Long term debt, gross	1,000		1,000
5.60% due July 15, 2041 [Member]	'		'
Debt Instrument [Line Items]	'		'
Debt interest rate, stated percentage	5.60%		5.60%
Debt, maturity date	15-Jul-41		15-Jul-41
Long term debt, gross	1,250		1,250
4.75% due May 15, 2042 [Member]	'		'
Debt Instrument [Line Items]	'		'
Debt interest rate, stated percentage	4.75%		4.75%
Debt, maturity date	15-May-42		15-May-42
Long term debt, gross	750		750
Senior Notes For Acquisition of GeoSouthern [Member]	'		'
Debt Instrument [Line Items]	'		'
Long term debt, gross	2,250		'
Devon Debt [Member]	'		'
Debt Instrument [Line Items]	'		'
Total debt	10,205		12,022
GeoSouthern Intermediate Holdings, LLC [Member]	'		'
Debt Instrument [Line Items]	'		'
Short-term debt	'		2,250
EnLink [Member]	'		'
Debt Instrument [Line Items]	'		'
Net premium on debentures and notes	13		'
Total debt	1,854		'
EnLink [Member] | Credit Facilities [Member]	'		'
Debt Instrument [Line Items]	'		'
Long term debt, gross	451		'
EnLink [Member] | Other Borrowings [Member]	'		'
Debt Instrument [Line Items]	'		'
Long term debt, gross	27		'
EnLink [Member] | 2.70% Due April 1, 2019 [Member]	'		'
Debt Instrument [Line Items]	'		'
Debt interest rate, stated percentage	2.70%		'
Debt, maturity date	1-Apr-19		'
Long term debt, gross	400		'
EnLink [Member] | 7.125% Due June 1, 2022 [Member]	'		'
Debt Instrument [Line Items]	'		'
Debt interest rate, stated percentage	7.13%		'
Debt, maturity date	1-Jun-22		'
Long term debt, gross	163		'
EnLink [Member] | 4.40% Due April 1, 2024 [Member]	'		'
Debt Instrument [Line Items]	'		'
Debt interest rate, stated percentage	4.40%		'
Debt, maturity date	1-Apr-24		'
Long term debt, gross	450		'
EnLink [Member] | 5.60% due April 1, 2044 [Member]	'		'
Debt Instrument [Line Items]	'		'
Debt interest rate, stated percentage	5.60%		'
Debt, maturity date	1-Apr-44		'
Long term debt, gross	$350		'
[1]	Short-term debt as of September 30, 2014 consists of $1.9 billion of senior notes that Devon intends to redeem in the fourth quarter of 2014 prior to their scheduled maturity date. The redemption includes the 2.4% $500 million senior note due 2016, the 1.2% $650 million senior note due 2016 and the 1.875% $750 million senior note due 2017 plus unpaid interest and a make-whole premium. The debt will be repaid with funds received as part of the divestiture program discussed in Note 2.Short-term debt as of December 31, 2013 consists of $2.25 billion of senior notes issued in conjunction with the GeoSouthern acquisition, $1.3 billion of commercial paper and $500 million of senior notes due January 15, 2014. Subsequent to the close of the GeoSouthern acquisition the $2.25 billion of senior notes were reclassified to long-term debt.

Debt_Schedule_Of_Debt_Assumed_

Debt (Schedule Of Debt Assumed) (Details) (EnLink [Member], USD $)	0 Months Ended		9 Months Ended
	Mar. 07, 2014		Sep. 30, 2014
Debt Instrument [Line Items]	'		'
Fair value of debt	$1,454,000,000		'
8.875% Due February 15, 2018 [Member]	'		'
Debt Instrument [Line Items]	'		'
Debt interest rate, stated percentage	'		8.88%	[1]
Debt, maturity date	'		15-Feb-18	[1]
Debt instrument, face amount	725,000,000	[1]	'
Fair value of debt	760,000,000	[1]	'
Effective rate of debt	7.70%	[1]	'
7.125% Due June 1, 2022 [Member]	'		'
Debt Instrument [Line Items]	'		'
Debt interest rate, stated percentage	'		7.13%
Debt, maturity date	'		1-Jun-22
Debt instrument, face amount	197,000,000		'
Fair value of debt	226,000,000		'
Effective rate of debt	5.30%		'
Credit Facilities [Member]	'		'
Debt Instrument [Line Items]	'		'
Fair value of debt	$468,000,000		'
[1]	The 2018 senior notes were redeemed on April 18, 2014.

Asset_Retirement_Obligations_S

Asset Retirement Obligations (Summary Of Changes In Asset Retirement Obligations) (Details) (USD $)	9 Months Ended
In Millions, unless otherwise specified	Sep. 30, 2014	Sep. 30, 2013	Dec. 31, 2013
Asset Retirement Obligations [Abstract]	'	'	'
Asset retirement obligations as of beginning of period	$2,228	$2,095	'
Liabilities incurred	79	88	'
Liabilities settled	-38	-46	'
Revision of estimated obligation	75	104	'
Liabilities assumed by others	-949	-15	'
Accretion expense on discounted obligation	70	86	'
Foreign currency translation adjustment	-55	-44	'
Asset retirement obligations as of end of period	1,410	2,268	'
Less current portion	62	107	'
Asset retirement obligations, long-term	$1,348	$2,161	$2,140

Retirement_Plans_Schedule_Of_N

Retirement Plans (Schedule Of Net Periodic Benefit Cost For Pension And Postretirement Benefit Plans) (Details) (USD $)	3 Months Ended				9 Months Ended
In Millions, unless otherwise specified	Sep. 30, 2014		Sep. 30, 2013		Sep. 30, 2014		Sep. 30, 2013
Pension Benefits [Member]	'		'		'		'
Defined Benefit Plan Disclosure [Line Items]	'		'		'		'
Service cost	$7		$9		$22		$27
Interest cost	14		13		41		39
Expected return on plan assets	-13		-16		-40		-47
Amortization of prior service cost	1	[1]	1	[1]	3	[1]	3	[1]
Net actuarial loss (gain)	4	[1]	5	[1]	14	[1]	16	[1]
Net periodic benefit cost	13	[2]	12	[2]	40	[2]	38	[2]
Postretirement Benefits [Member]	'		'		'		'
Defined Benefit Plan Disclosure [Line Items]	'		'		'		'
Interest cost	'		'		'		1
Amortization of prior service cost	-1	[1]	'		-1	[1]	'
Net actuarial loss (gain)	'		'		-1	[1]	-1	[1]
Net periodic benefit cost	($1)	[2]	'		($2)	[2]	'
[1]	These net periodic benefit costs were reclassified out of other comprehensive earnings in the current period.
[2]	Net periodic benefit cost is a component of general and administrative expenses on the accompanying comprehensive statements of earnings.

Stockholders_Equity_Details

Stockholders' Equity (Details) (USD $)	3 Months Ended			9 Months Ended			0 Months Ended	9 Months Ended
In Millions, except Per Share data, unless otherwise specified	Jun. 30, 2014	Jun. 30, 2013	Mar. 31, 2013	Sep. 30, 2014	Sep. 30, 2013	Sep. 30, 2014	Mar. 07, 2014	Sep. 30, 2014
						Partnership [Member]	EnLink [Member]	EnLink [Member]
						Forecast [Member]
						Maximum [Member]
Stockholders Equity [Line Items]	'	'	'	'	'	'	'	'
Payments of ordinary dividends	'	'	'	$287	$259	'	'	'
Dividends paid per share	$0.24	$0.22	$0.20	'	'	'	'	'
Aggregate offering price	'	'	'	'	'	75	'	'
Common units sold	'	'	'	2.4	'	'	'	'
Proceeds from issuance of subsidiary units	'	'	'	72	'	'	'	'
Cash payment to acquire interest	'	'	'	'	'	'	100	'
Distribution to unitholders other than Devon	'	'	'	'	'	'	'	$87

Fair_Value_Measurements_Schedu

Fair Value Measurements (Schedule Of Carrying Value And Fair Value Measurement Information For Financial Assets And Liabilities) (Details) (USD $)	3 Months Ended	9 Months Ended
In Millions, unless otherwise specified	Mar. 31, 2014	Sep. 30, 2014	Dec. 31, 2013
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'	'
Derivatives, assets	'	$310	$103
Derivatives, liabilities	'	-84	-121
Redemptions of Auction Rate Securities	57	57	'
Auction Rate Securities redeemed lower than carrying value	5	'	'
Carrying Amount [Member]	'	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'	'
Cash equivalents	'	2,876	5,305
Debt	'	-12,059	-12,022
Capital lease obligations	'	-21	'
Total Fair Value [Member]	'	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'	'
Cash equivalents	'	2,876	5,305
Debt	'	-13,410	-12,908
Capital lease obligations	'	-21	'
Level 1 Inputs [Member]	'	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'	'
Cash equivalents	'	1,745	4,191
Level 2 Inputs [Member]	'	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'	'
Cash equivalents	'	1,131	1,114
Debt	'	-13,410	-12,908
Capital lease obligations	'	-21	'
Long-Term Investments [Member] | Carrying Amount [Member]	'	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'	'
Investments	'	'	62
Long-Term Investments [Member] | Total Fair Value [Member]	'	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'	'
Investments	'	'	62
Long-Term Investments [Member] | Level 3 Inputs [Member]	'	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'	'
Investments	'	'	62
Commodity Derivatives [Member] | Carrying Amount [Member]	'	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'	'
Derivatives, assets	'	297	103
Derivatives, liabilities	'	-80	-120
Commodity Derivatives [Member] | Total Fair Value [Member]	'	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'	'
Derivatives, assets	'	297	103
Derivatives, liabilities	'	-80	-120
Commodity Derivatives [Member] | Level 2 Inputs [Member]	'	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'	'
Derivatives, assets	'	297	103
Derivatives, liabilities	'	-80	-120
Interest Rate Derivatives [Member] | Carrying Amount [Member]	'	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'	'
Derivatives, assets	'	1	'
Derivatives, liabilities	'	-2	'
Interest Rate Derivatives [Member] | Total Fair Value [Member]	'	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'	'
Derivatives, assets	'	1	'
Derivatives, liabilities	'	-2	'
Interest Rate Derivatives [Member] | Level 2 Inputs [Member]	'	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'	'
Derivatives, assets	'	1	'
Derivatives, liabilities	'	-2	'
Foreign Currency Derivatives [Member] | Carrying Amount [Member]	'	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'	'
Derivatives, assets	'	11	'
Derivatives, liabilities	'	'	-1
Foreign Currency Derivatives [Member] | Total Fair Value [Member]	'	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'	'
Derivatives, assets	'	11	'
Derivatives, liabilities	'	'	-1
Foreign Currency Derivatives [Member] | Level 2 Inputs [Member]	'	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'	'
Derivatives, assets	'	11	'
Derivatives, liabilities	'	'	-1
EnLink [Member] | Commodity Derivatives [Member] | Carrying Amount [Member]	'	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'	'
Derivatives, assets	'	1	'
Derivatives, liabilities	'	-2	'
EnLink [Member] | Commodity Derivatives [Member] | Total Fair Value [Member]	'	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'	'
Derivatives, assets	'	1	'
Derivatives, liabilities	'	-2	'
EnLink [Member] | Commodity Derivatives [Member] | Level 2 Inputs [Member]	'	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'	'
Derivatives, assets	'	1	'
Derivatives, liabilities	'	($2)	'

Segment_information_Condensed_

Segment information (Condensed Statements Of Comprehensive Earnings And Balance Sheets Of Reportable Segments) (Details) (USD $)	3 Months Ended		9 Months Ended
In Millions, unless otherwise specified	Sep. 30, 2014	Sep. 30, 2013	Sep. 30, 2014	Sep. 30, 2013	Dec. 31, 2013
Segment Reporting Information [Line Items]	'	'	'	'	'
Oil, gas and NGL sales	$2,588	$2,341	$7,824	$6,367	'
Oil, gas and NGL derivatives	748	-141	29	-95	'
Marketing and midstream revenues	2,000	514	5,718	1,501	'
Revenues from external customers	5,336	2,714	13,571	7,773	'
Depreciation, depletion and amortization	842	691	2,409	2,069	'
Interest expense	118	104	366	322	'
Asset impairments	'	7	'	1,960	'
Earnings (loss) before income taxes	1,654	639	3,768	-326	'
Income tax expense (benefit)	613	210	1,698	-99	'
Net earnings (loss)	1,041	429	2,070	-227	'
Net earnings (loss) attributable to noncontrolling interests	25	'	55	'	'
Net earnings (loss) attributable to Devon	1,016	429	2,015	-227	'
Property and equipment, net	35,169	'	35,169	'	28,447
Total assets	50,839	'	50,839	'	42,877
Capital expenditures	1,755	1,693	11,294	5,027	'
Eliminations [Member]	'	'	'	'	'
Segment Reporting Information [Line Items]	'	'	'	'	'
Interest expense	-11	-10	-31	-24	'
Total assets	-117	'	-117	'	'
Eliminations [Member] | Intersegment [Member]	'	'	'	'	'
Segment Reporting Information [Line Items]	'	'	'	'	'
Revenues from external customers	-199	-342	-672	-1,005	'
United States [Member]	'	'	'	'	'
Segment Reporting Information [Line Items]	'	'	'	'	'
Number of reportable segments	'	'	1	'	'
Revenues from external customers	4,199	1,687	10,067	5,033	'
Depreciation, depletion and amortization	655	444	1,794	1,287	'
Interest expense	95	94	303	284	'
Asset impairments	'	7	'	1,117	'
Earnings (loss) before income taxes	1,461	366	2,219	96	'
Income tax expense (benefit)	557	141	1,121	10	'
Net earnings (loss)	904	225	1,098	86	'
Net earnings (loss) attributable to noncontrolling interests	'	'	1	'	'
Net earnings (loss) attributable to Devon	904	'	1,097	'	'
Property and equipment, net	23,764	'	23,764	'	18,201
Total assets	30,533	'	30,533	'	27,080
Capital expenditures	1,213	1,219	9,748	3,477	'
Canada [Member]	'	'	'	'	'
Segment Reporting Information [Line Items]	'	'	'	'	'
Revenues from external customers	481	791	1,671	2,052	'
Depreciation, depletion and amortization	113	199	419	643	'
Interest expense	20	20	61	62	'
Asset impairments	'	'	'	843	'
Earnings (loss) before income taxes	109	219	1,310	-559	'
Income tax expense (benefit)	38	50	517	-158	'
Net earnings (loss)	71	169	793	-401	'
Net earnings (loss) attributable to Devon	71	'	793	'	'
Property and equipment, net	6,882	'	6,882	'	8,478
Total assets	10,895	'	10,895	'	13,560
Capital expenditures	335	437	1,055	1,377	'
EnLink [Member]	'	'	'	'	'
Segment Reporting Information [Line Items]	'	'	'	'	'
Revenues from external customers	656	236	1,833	688	'
Depreciation, depletion and amortization	74	48	196	139	'
Interest expense	14	'	33	'	'
Earnings (loss) before income taxes	84	54	239	137	'
Income tax expense (benefit)	18	19	60	49	'
Net earnings (loss)	66	35	179	88	'
Net earnings (loss) attributable to noncontrolling interests	25	'	54	'	'
Net earnings (loss) attributable to Devon	41	'	125	'	'
Property and equipment, net	4,523	'	4,523	'	1,768
Total assets	9,528	'	9,528	'	2,237
Capital expenditures	207	37	491	173	'
EnLink [Member] | Intersegment [Member]	'	'	'	'	'
Segment Reporting Information [Line Items]	'	'	'	'	'
Revenues from external customers	$199	$342	$672	$1,005	'