Other Liabilities - Long-Term Table (Details) $ in Millions	12 Months Ended
	Dec. 31, 2017 USD ($) well	Dec. 31, 2016 USD ($)
Other Long-Term Liabilities [Line Items]
CHK Utica ORRI conveyance obligation	$ 156	$ 160
Unrecognized tax benefits	101	97
Other	97	126
Total other long-term liabilities	354	383
Current revenues and royalties due others	$ 612	543
Noncontrolling Interest, Chesapeake Utica L L C [Member] | ORRI [Member]
Other Long-Term Liabilities [Line Items]
Wells | well	1,500
Current revenues and royalties due others	$ 30	$ 43
Minimum [Member] | Noncontrolling Interest, Chesapeake Utica L L C [Member] | ORRI [Member]
Other Long-Term Liabilities [Line Items]
Wells | well	1,300
Wells, Drilled Wells [Member] | Noncontrolling Interest, Chesapeake Utica L L C [Member] | ORRI [Member]
Other Long-Term Liabilities [Line Items]
Wells | well	572