Consolidated Comprehensive Statements Of Earnings - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2016	Mar. 31, 2015
Consolidated Comprehensive Statements Of Earnings [Abstract]
Oil, gas and NGL sales	$ 825	$ 1,339
Oil, gas and NGL derivatives	33	294
Marketing and midstream revenues	1,268	1,632
Total operating revenues	2,126	3,265
Lease operating expenses	444	553
Marketing and midstream operating expenses	1,066	1,439
General and administrative expenses	194	251
Production and property taxes	78	108
Depreciation, depletion and amortization	542	930
Asset impairments	3,035	5,460
Restructuring and transaction costs	247
Other operating items	20	19
Total operating expenses	5,626	8,760
Operating loss	(3,500)	(5,495)
Net financing costs	164	117
Other nonoperating items	21	12
Loss before income taxes	(3,685)	(5,624)
Income tax benefit	(217)	(2,035)
Net loss	(3,468)	(3,589)
Net earnings (loss) attributable to noncontrolling interests	(412)	10
Net loss attributable to Devon	$ (3,056)	$ (3,599)
Net loss per share attributable to Devon:
Basic	$ (6.44)	$ (8.88)
Diluted	$ (6.44)	$ (8.88)
Comprehensive loss:
Net loss	$ (3,468)	$ (3,589)
Other comprehensive earnings (loss), net of tax:
Foreign currency translation	23	(302)
Pension and postretirement plans	4	4
Other comprehensive earnings (loss), net of tax	27	(298)
Comprehensive loss	(3,441)	(3,887)
Comprehensive earnings (loss) attributable to noncontrolling interests	(412)	10
Comprehensive loss attributable to Devon	$ (3,029)	$ (3,897)