Basis of Presentation and Significant Accounting Policies Basis of Presentation and Significant Accounting Policies, Condensed Consolidated Statements of Comprehensive Income (Loss) Restatements Table (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2017	Jun. 30, 2016	Jun. 30, 2017	Jun. 30, 2016
Error Corrections and Prior Period Adjustments Restatement [Line Items]
Net loss	$ 495	$ (1,776)	$ 636	$ (2,844)
Comprehensive loss	502	(1,781)	657	(2,849)
Comprehensive loss attributable to Chesapeake	$ 501	(1,781)	$ 655	(2,849)
Scenario, Previously Reported [Member]
Error Corrections and Prior Period Adjustments Restatement [Line Items]
Net loss		(1,750)		(2,671)
Comprehensive loss		(1,755)		(2,676)
Comprehensive loss attributable to Chesapeake		(1,755)		(2,676)
Restatement Adjustment [Member]
Error Corrections and Prior Period Adjustments Restatement [Line Items]
Net loss		(26)		(173)
Comprehensive loss		(26)		(173)
Comprehensive loss attributable to Chesapeake		$ (26)		$ (173)