CONSOLIDATED STATEMENTS OF OPERATIONS - USD ($) shares in Millions, $ in Millions	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
REVENUES:
Oil, natural gas and NGL	$ 4,985	$ 3,288	$ 5,391
Marketing, gathering and compression	4,511	4,584	7,373
Total Revenues	9,496	7,872	12,764
OPERATING EXPENSES:
Oil, natural gas and NGL production	562	710	1,046
Oil, natural gas and NGL gathering, processing and transportation	1,471	1,855	2,119
Production taxes	89	74	99
Marketing, gathering and compression	4,598	4,778	7,130
General and administrative	262	240	235
Restructuring and other termination costs	0	6	36
Provision for legal contingencies, net	(38)	123	353
Oil, natural gas and NGL depreciation, depletion and amortization	913	1,003	2,099
Depreciation and amortization of other assets	82	104	130
Impairment of oil and natural gas properties	0	2,564	18,238
Impairments of fixed assets and other	421	838	194
Net (gains) losses on sales of fixed assets	(3)	(12)	4
Total Operating Expenses	8,357	12,283	31,683
INCOME (LOSS) FROM OPERATIONS	1,139	(4,411)	(18,919)
OTHER INCOME (EXPENSE):
Interest expense	(426)	(296)	(317)
Losses on investments	0	(8)	(96)
Loss on sale of investment	0	(10)	0
Impairments of investments	0	(119)	(53)
Gains on purchases or exchanges of debt	233	236	279
Other income	9	19	8
Total Other Expense	(184)	(178)	(179)
INCOME (LOSS) BEFORE INCOME TAXES	955	(4,589)	(19,098)
Current income taxes	(9)	(19)	(36)
Deferred income taxes	11	(171)	(4,427)
Total Income Tax Expense (Benefit)	2	(190)	(4,463)
NET INCOME (LOSS)	953	(4,399)	(14,635)
Net (income) loss attributable to noncontrolling interests	(4)	9	68
Other comprehensive income	39	3	44
NET INCOME (LOSS) ATTRIBUTABLE TO CHESAPEAKE	949	(4,390)	(14,567)
Preferred stock dividends	(85)	(97)	(171)
Loss on exchange of preferred stock	(41)	(428)	0
Earnings allocated to participating securities	(10)	0	0
NET INCOME (LOSS) AVAILABLE TO COMMON STOCKHOLDERS	$ 813	$ (4,915)	$ (14,738)
EARNINGS (LOSS) PER COMMON SHARE:
Earnings Per Share, Basic	$ 0.90	$ (6.43)	$ (22.26)
Earnings Per Share, Diluted	0.90	(6.43)	(22.26)
Common Stock, Dividends, Per Share, Declared	$ 0.0000	$ 0.0000	$ 0.0875
WEIGHTED AVERAGE COMMON AND COMMON EQUIVALENT SHARES OUTSTANDING (in millions):
Weighted Average Number of Shares Outstanding, Basic	906	764	662
Weighted Average Number of Shares Outstanding, Diluted	906	764	662