CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (LOSS) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
NET INCOME (LOSS)	$ 953	$ (4,399)	$ (14,635)
OTHER COMPREHENSIVE INCOME (LOSS), NET OF INCOME TAX:
Unrealized gains (losses) on derivative instruments, net of income tax expense (benefit) of $0, ($14) and $12	5	(13)	20
Reclassification of losses on settled derivative instruments, net of income tax expense of $0, $18 and $15	34	16	24
Other Comprehensive Income	39	3	44
COMPREHENSIVE INCOME (LOSS)	992	(4,396)	(14,591)
Net income attributable to noncontrolling interests	4	(9)	(68)
COMPREHENSIVE INCOME (LOSS) ATTRIBUTABLE TO CHESAPEAKE	$ 988	$ (4,387)	$ (14,523)