CONSOLIDATED STATEMENTS OF STOCKHOLDERS' EQUITY (Unaudited) - USD ($) $ in Millions		Total		PREFERRED STOCK		COMMON STOCK		ADDITIONAL PAID-IN CAPITAL	ACCUMULATED DEFICIT		ACCUMULATED OTHER COMPREHENSIVE LOSS:	TREASURY STOCK – COMMON:	TOTAL CHESAPEAKE STOCKHOLDERS’ EQUITY	NONCONTROLLING INTERESTS:
Chesapeake stockholders’ equity, beginning of period at Dec. 31, 2017	[1]			$ 1,671		$ 9		$ 14,437	$ (14,130)		$ (57)	$ (31)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Common shares issued for WildHorse Merger	[1]					0		0
Stock-based compensation	[1]							17
Dividends on preferred stock	[1]							(46)
Net income (loss) attributable to Chesapeake		$ (232)	[2]						(232)	[1]
Hedging activity	[1]										17
Purchase of 81,093, 17,046, 2,620,566, and 1,468,524 shares for company benefit plans	[1]											(4)
Release of 148,767, 114,450, 259,563 and 389,857 shares from company benefit plans	[1]											4
Chesapeake stockholders’ equity, end of period at Jun. 30, 2018	[1]			1,671		9		14,408	(14,370)		(40)	(31)	$ 1,647
Stockholders' equity attributable to noncontrolling interest, beginning of period at Dec. 31, 2017	[1]													$ 44
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income attributable to noncontrolling interests		(1)	[3]											1	[1]
Distributions to noncontrolling interest owners	[1]													(3)
Stockholders' equity attributable to noncontrolling interest, end of period at Jun. 30, 2018	[1]													42
Chesapeake stockholders’ equity, beginning of period at Mar. 31, 2018	[1]			1,671		9		14,419	(14,121)		(47)	(32)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Common shares issued for WildHorse Merger	[1]					0		0
Stock-based compensation	[1]							12
Dividends on preferred stock	[1]							(23)
Net income (loss) attributable to Chesapeake		(249)	[2]						(249)	[1]
Hedging activity	[1]										7
Purchase of 81,093, 17,046, 2,620,566, and 1,468,524 shares for company benefit plans	[1]											0
Release of 148,767, 114,450, 259,563 and 389,857 shares from company benefit plans	[1]											1
Chesapeake stockholders’ equity, end of period at Jun. 30, 2018	[1]			1,671		9		14,408	(14,370)		(40)	(31)	1,647
Stockholders' equity attributable to noncontrolling interest, beginning of period at Mar. 31, 2018	[1]													43
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income attributable to noncontrolling interests		0	[3]											0	[1]
Distributions to noncontrolling interest owners	[1]													(1)
Stockholders' equity attributable to noncontrolling interest, end of period at Jun. 30, 2018	[1]													42
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Total Equity	[1]	1,689
Total Equity		2,133
Chesapeake stockholders’ equity, beginning of period at Dec. 31, 2018		2,092		1,671	[1]	9		14,378	(13,912)		(23)	(31)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Common shares issued for WildHorse Merger						7		2,030
Stock-based compensation								18
Dividends on preferred stock								(46)
Net income (loss) attributable to Chesapeake		77	[2]						77
Hedging activity											18
Purchase of 81,093, 17,046, 2,620,566, and 1,468,524 shares for company benefit plans												(7)
Release of 148,767, 114,450, 259,563 and 389,857 shares from company benefit plans												2
Chesapeake stockholders’ equity, end of period at Jun. 30, 2019		4,191		1,671		16	[1]	16,380	(13,835)	[1]	(5)	(36)	4,191
Stockholders' equity attributable to noncontrolling interest, beginning of period at Dec. 31, 2018		41												41
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income attributable to noncontrolling interests		0	[3]											0
Distributions to noncontrolling interest owners														(2)
Stockholders' equity attributable to noncontrolling interest, end of period at Jun. 30, 2019		39												39
Chesapeake stockholders’ equity, beginning of period at Mar. 31, 2019				1,671	[1]	16		16,392	(13,933)		(13)	(36)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Common shares issued for WildHorse Merger						0		0
Stock-based compensation								11
Dividends on preferred stock								(23)
Net income (loss) attributable to Chesapeake		98							98
Hedging activity											8
Purchase of 81,093, 17,046, 2,620,566, and 1,468,524 shares for company benefit plans												(1)
Release of 148,767, 114,450, 259,563 and 389,857 shares from company benefit plans												1
Chesapeake stockholders’ equity, end of period at Jun. 30, 2019		4,191		$ 1,671		$ 16	[1]	$ 16,380	$ (13,835)	[1]	$ (5)	$ (36)	$ 4,191
Stockholders' equity attributable to noncontrolling interest, beginning of period at Mar. 31, 2019														41
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income attributable to noncontrolling interests		0												0
Distributions to noncontrolling interest owners														(2)
Stockholders' equity attributable to noncontrolling interest, end of period at Jun. 30, 2019		39												$ 39
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Total Equity		$ 4,230

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