Other Liabilities - Long-Term Table (Details) $ in Millions	3 Months Ended	12 Months Ended
	Mar. 31, 2018 USD ($) well	Dec. 31, 2017 USD ($) well
Other Long-Term Liabilities [Line Items]
CHK Utica ORRI conveyance obligation	$ 153	$ 156
Unrecognized tax benefits	98	101
Other	94	97
Total other long-term liabilities	345	354
Current revenues and royalties due others	$ 584	612
Noncontrolling Interest, Chesapeake Utica L L C [Member] | ORRI [Member]
Other Long-Term Liabilities [Line Items]
Number of wells | well	1,500
Current revenues and royalties due others	$ 30	$ 30
Minimum [Member] | Noncontrolling Interest, Chesapeake Utica L L C [Member] | ORRI [Member]
Other Long-Term Liabilities [Line Items]
Number of wells | well	1,300
Wells, drilled wells [Member] | Noncontrolling Interest, Chesapeake Utica L L C [Member] | ORRI [Member]
Other Long-Term Liabilities [Line Items]
Number of wells | well		584