Consolidated Comprehensive Statements Of Earnings - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2017	Mar. 31, 2016
Income Statement [Abstract]
Oil, gas and NGL sales	$ 1,309	$ 825
Oil, gas and NGL derivatives	232	33
Marketing and midstream revenues	2,010	1,268
Asset dispositions and other	(4)
Total revenues and other	3,547	2,126
Lease operating expenses	386	444
Marketing and midstream operating expenses	1,803	1,066
General and administrative expenses	181	194
Production and property taxes	85	78
Depreciation, depletion and amortization	381	542
Asset impairments	7	3,035
Restructuring and transaction costs		247
Other operating items	(2)	20
Total operating expenses	2,841	5,626
Operating income (loss)	706	(3,500)
Net financing costs	127	164
Other nonoperating items	(19)	21
Earnings (loss) before income taxes	598	(3,685)
Income tax expense (benefit)	19	(217)
Net earnings (loss)	579	(3,468)
Net earnings (loss) attributable to noncontrolling interests	14	(412)
Net earnings (loss) attributable to Devon	$ 565	$ (3,056)
Net earnings (loss) per share attributable to Devon:
Basic	$ 1.08	$ (6.44)
Diluted	$ 1.07	$ (6.44)
Comprehensive earnings (loss):
Net earnings (loss)	$ 579	$ (3,468)
Other comprehensive earnings, net of tax:
Foreign currency translation	(2)	23
Pension and postretirement plans	5	4
Other comprehensive earnings, net of tax	3	27
Comprehensive earnings (loss)	582	(3,441)
Comprehensive earnings (loss) attributable to noncontrolling interests	14	(412)
Comprehensive earnings (loss) attributable to Devon	$ 568	$ (3,029)