Consolidated Comprehensive Statements Of Earnings - USD ($) $ in Millions	3 Months Ended	6 Months Ended
Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2018	Jun. 30, 2017
Income Statement [Abstract]
Upstream revenues	$ 1,069	$ 1,332	$ 2,388	$ 2,873
Marketing revenues	1,180	833	2,059	1,692
Total revenues	2,249	2,165	4,447	4,565
Production expenses	572	455	1,115	912
Exploration expenses	68	57	101	152
Marketing expenses	1,160	849	2,033	1,728
Depreciation, depletion and amortization	420	369	819	769
Asset impairments	154		154
Asset dispositions	23	(22)	11	(30)
General and administrative expenses	153	181	352	376
Financing costs, net	62	77	449	160
Restructuring and transaction costs	94		94
Other expenses	24	(8)	45	(22)
Total expenses	2,730	1,958	5,173	4,045
Earnings (loss) from continuing operations before income taxes	(481)	207	(726)	520
Income tax benefit	(7)	(5)	(41)
Net earnings (loss) from continuing operations	(474)	212	(685)	520
Net earnings from discontinued operations, net of income tax expense	139	33	197	42
Net earnings (loss)	(335)	245	(488)	562
Net earnings attributable to noncontrolling interests	90	26	134	40
Net earnings (loss) attributable to Devon	$ (425)	$ 219	$ (622)	$ 522
Basic net earnings (loss) per share:
Basic earnings (loss) from continuing operations per share	$ (0.92)	$ 0.40	$ (1.33)	$ 0.99
Basic earnings from discontinued operations per share	0.09	0.01	0.13
Basic net earnings (loss) per share	(0.83)	0.41	(1.20)	0.99
Diluted net earnings (loss) per share:
Diluted earnings (loss) from continuing operations per share	(0.92)	0.40	(1.33)	0.99
Diluted earnings from discontinued operations per share	0.09	0.01	0.13
Diluted net earnings (loss) per share	$ (0.83)	$ 0.41	$ (1.20)	$ 0.99
Comprehensive earnings (loss):
Net earnings (loss)	$ (335)	$ 245	$ (488)	$ 562
Other comprehensive earnings (loss), net of tax:
Foreign currency translation	(34)	28	(82)	36
Pension and postretirement plans	3	4	7	9
Other comprehensive earnings (loss), net of tax	(31)	32	(75)	45
Comprehensive earnings (loss)	(366)	277	(563)	607
Comprehensive earnings attributable to noncontrolling interests	90	26	134	40
Comprehensive earnings (loss) attributable to Devon	$ (456)	$ 251	$ (697)	$ 567

Operating and nonoperating income (expense), classified as other.

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Exploration expenses (including prospecting) related to oil and gas producing entities and would be included in operating expenses of that entity. Costs incurred in identifying areas that may warrant examination and in examining specific areas that are considered to have prospects of containing oil and gas reserves, including costs of drilling exploratory wells and exploratory-type stratigraphic test wells. Exploration costs may be incurred both before acquiring the related property (sometimes referred to in part as prospecting costs) and after acquiring the property. Principal types of exploration costs, which include depreciation and applicable operating costs of support equipment and facilities and other costs of exploration activities, are: (i) Costs of topographical, geographical and geophysical studies, rights of access to properties to conduct those studies, and salaries and other expenses of geologists, geophysical crews, and others conducting those studies. Collectively, these are sometimes referred to as geological and geophysical or "G&G" costs. (ii) Costs of carrying and retaining undeveloped properties, such as delay rentals, ad valorem taxes on properties, legal costs for title defense, and the maintenance of land and lease records. (iii) Dry hole contributions and bottom hole contributions. (iv) Costs of drilling and equipping exploratory wells. (v) Costs of drilling exploratory-type stratigraphic test wells.

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Cost incurred related to the gas activities, such as transportation, marketing and processing crude oil, natural gas and refined petroleum products.

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