CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (Unaudited) - USD ($) $ in Millions		3 Months Ended			6 Months Ended
		Jun. 30, 2019	Jun. 30, 2018		Jun. 30, 2019		Jun. 30, 2018
Statement of Comprehensive Income [Abstract]
NET INCOME (LOSS)		$ 98	$ (249)	[1]	$ 77	[1],[2]	$ (231)	[1],[2]
OTHER COMPREHENSIVE INCOME, NET OF INCOME TAX:
Unrealized gains on derivative instruments	[3]	0			0
Unrealized gains on derivative instruments	[1],[3]		0				0
Reclassification of losses on settled derivative instruments	[3]	8			18
Reclassification of losses on settled derivative instruments	[1],[3]		7				17
Other Comprehensive Income		8	7	[1]	18		17	[1]
COMPREHENSIVE INCOME (LOSS)		106	(242)	[1]	95		(214)	[1]
COMPREHENSIVE INCOME ATTRIBUTABLE TO NONCONTROLLING INTERESTS		0	0	[1]	0		(1)
Net Income (Loss) Attributable to Noncontrolling Interest		0	0	[1]	0	[1]	1	[1]
COMPREHENSIVE INCOME (LOSS) ATTRIBUTABLE TO CHESAPEAKE		$ 106	$ (242)	[1]	$ 95		$ (215)	[1]

[1] Financial information for 2018 has been recast to reflect the retrospective application of the successful efforts method of accounting. See Note 1.

[2] Financial information for 2018 has been recast to reflect the retrospective application of the successful efforts method of accounting. See Note 1.

[3] Deferred tax activity incurred in other comprehensive income was offset by a valuation allowance.