Consolidated Comprehensive Statements Of Earnings - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Income Statement [Abstract]
Oil, gas and NGL sales	$ 4,182	$ 5,382	$ 9,910
Oil, gas and NGL derivatives	(201)	503	1,989
Marketing and midstream revenues	6,323	7,260	7,667
Asset dispositions and other	1,893		1,072
Total revenues and other	12,197	13,145	20,638
Lease operating expenses	1,582	2,104	2,332
Marketing and midstream operating expenses	5,492	6,420	6,815
General and administrative expenses	645	855	847
Production and property taxes	275	388	535
Depreciation, depletion and amortization	1,792	3,129	3,319
Asset impairments	4,975	20,820	1,953
Restructuring and transaction costs	267	78	46
Other operating items	64	78	93
Total operating expenses	15,092	33,872	15,940
Operating income (loss)	(2,895)	(20,727)	4,698
Net financing costs	904	517	526
Other nonoperating items	78	24	113
Earnings (loss) before income taxes	(3,877)	(21,268)	4,059
Income tax expense (benefit)	(173)	(6,065)	2,368
Net earnings (loss)	(3,704)	(15,203)	1,691
Net earnings (loss) attributable to noncontrolling interests	(402)	(749)	84
Net earnings (loss) attributable to Devon	$ (3,302)	$ (14,454)	$ 1,607
Net earnings (loss) per share attributable to Devon:
Basic	$ (6.52)	$ (35.55)	$ 3.93
Diluted	$ (6.52)	$ (35.55)	$ 3.91
Comprehensive earnings (loss):
Net earnings (loss)	$ (3,704)	$ (15,203)	$ 1,691
Other comprehensive earnings (loss), net of tax:
Foreign currency translation	32	(559)	(465)
Pension and postretirement plans	22	10	(24)
Other comprehensive earnings (loss), net of tax	54	(549)	(489)
Comprehensive earnings (loss)	(3,650)	(15,752)	1,202
Comprehensive earnings (loss) attributable to noncontrolling interests	(402)	(749)	84
Comprehensive earnings (loss) attributable to Devon	$ (3,248)	$ (15,003)	$ 1,118