Equity - Noncontrolling Interests Narrative (Details) $ / shares in Units, $ in Millions		1 Months Ended			2 Months Ended	3 Months Ended				6 Months Ended
	Jun. 30, 2015 USD ($) well a $ / shares shares	Jul. 31, 2014 USD ($) $ / shares	Mar. 30, 2012 USD ($) a well	Oct. 31, 2011 a County	Dec. 31, 2011 USD ($) well shares	Sep. 30, 2015 USD ($)	Jun. 30, 2015 USD ($) well a $ / shares shares	Jun. 30, 2014 USD ($) shares	Dec. 31, 2011 USD ($) shares	Jun. 30, 2015 USD ($) a well Quarter $ / shares shares	Jun. 30, 2014 USD ($) well shares	Dec. 31, 2014 USD ($) $ / shares shares	Dec. 31, 2013 shares	Mar. 31, 2012 shares	Nov. 30, 2011 $ / shares shares
Noncontrolling Interest [Line Items]
Payments for (Proceeds from) Investments										$ 6	$ 5
Restricted cash	$ 38						$ 38			38		$ 38
Stockholders' Equity Attributable to Noncontrolling Interest	$ 1,285						1,285			1,285		$ 1,302
Net income (loss) attributable to noncontrolling interests							$ 18	$ 39		37	80
Proceeds from divestitures of proved and unproved properties										$ 14	$ 248
Common Stock, Shares, Issued | shares	665,060,856						665,060,856	665,441,000		665,060,856	665,441,000	664,944,232	666,192,000
Common stock, par value (usd per share) | $ / shares	$ 0.01						$ 0.01			$ 0.01		$ 0.01
Noncontrolling Interest, Chesapeake Cleveland Tonkawa L.L.C [Member]
Noncontrolling Interest [Line Items]
Number Of Net Acres | a			245,000
Payments for (Proceeds from) Investments			$ 1,250
Preferred Stock, Shares Issued | shares														1,250,000
Overriding Royalty Interest Percentage	3.75%						3.75%			3.75%				3.75%
Preferred Stock, Dividends, Per Share, Cash Paid | $ / shares										$ 1,000
Restricted cash	$ 38						$ 38			$ 38
Stockholders' Equity Attributable to Noncontrolling Interest	1,015						1,015			1,015		$ 1,015
Net income (loss) attributable to noncontrolling interests							$ 19	$ 19		$ 38	$ 38
Proceeds from divestitures of proved and unproved properties	$ 575
Noncontrolling Interest, Chesapeake Cleveland Tonkawa L.L.C [Member] | Scenario, Forecast [Member]
Noncontrolling Interest [Line Items]
Payments of Dividends						$ 75
Noncontrolling Interest, Chesapeake Cleveland Tonkawa L.L.C [Member] | Minimum, Six-Month Period Through 2013 [Member]
Noncontrolling Interest [Line Items]
Number of Wells, Net Decimal | well										37.5
Noncontrolling Interest, Chesapeake Cleveland Tonkawa L.L.C [Member] | Minimum, Six-Month Period in 2014 through 2016 [Member]
Noncontrolling Interest [Line Items]
Number of Wells, Net | well										25
Noncontrolling Interest, Chesapeake Cleveland Tonkawa L.L.C [Member] | Minimum, Cumulative Well Total [Member]
Noncontrolling Interest [Line Items]
Number of Wells, Net | well										300
Noncontrolling Interest, Chesapeake Cleveland Tonkawa L.L.C [Member] | Minimum, Six-Month Period of April 1, 2014 - June 30,2014 [Member]
Noncontrolling Interest [Line Items]
Number of Wells, Net Decimal | well										162.5
Noncontrolling Interest, Chesapeake Cleveland Tonkawa L.L.C [Member] | Minimum, Six-Month Period of June 30,2014 - December 31, 2014 [Member]
Noncontrolling Interest [Line Items]
Number of Wells, Net Decimal | well										175
Noncontrolling Interest, Chesapeake Cleveland Tonkawa L.L.C [Member] | Wells, Future Wells [Member]
Noncontrolling Interest [Line Items]
Number of Wells, Net | well			1,000							1,000
Noncontrolling Interest, Chesapeake Cleveland Tonkawa L.L.C [Member] | Wells, Drilled Wells [Member] | ORRI [Member]
Noncontrolling Interest [Line Items]
Number of Wells, Net | well										190
Noncontrolling Interest, Chesapeake Cleveland Tonkawa L.L.C [Member] | Wells, Percentage Increase in Future Net Wells [Member] | Minimum [Member]
Noncontrolling Interest [Line Items]
Percentage of increase in leasehold in which commitment to drill is not met										5.00%
Noncontrolling Interest, Chesapeake Cleveland Tonkawa L.L.C [Member] | Preferred Stock [Member]
Noncontrolling Interest [Line Items]
Preferred Stock, Dividend Rate, Percentage										6.00%
Noncontrolling Interest, Chesapeake Cleveland Tonkawa L.L.C [Member] | Cash Distribution [Member]
Noncontrolling Interest [Line Items]
Payments for (Proceeds from) Investments			$ 225
Noncontrolling Interest, Chesapeake Cleveland Tonkawa L.L.C [Member] | Share Distribution [Member]
Noncontrolling Interest [Line Items]
Payments for (Proceeds from) Investments			$ 1,025
Noncontrolling Interest, Chesapeake Utica L L C [Member]
Noncontrolling Interest [Line Items]
Number Of Net Acres | a				700,000
Payments for (Proceeds from) Investments					$ 1,250
Preferred Stock, Shares Issued | shares					1,250,000				1,250,000
Overriding Royalty Interest Percentage	3.00%				3.00%		3.00%		3.00%	3.00%
Number of Wells, Net | well					1,500					1,500
Percentage of increase in leasehold in which commitment to drill is not met										4.00%
Net income (loss) attributable to noncontrolling interests								19			37
Number Of Counties Present In Leasehold Land | County				13
Payments for Repurchase of Preferred Stock and Preference Stock		$ 1,254
Preferred Stock Redemption Premium										$ 447
Spacing for Wells Drilled | a	150						150			150
Preferred Stock, Redemption Price Per Share | $ / shares		$ 1,189
Noncontrolling Interest, Chesapeake Utica L L C [Member] | ORRI [Member]
Noncontrolling Interest [Line Items]
Number of Wells, Net | well										463
Noncontrolling Interest, Chesapeake Utica L L C [Member] | Minimum [Member]
Noncontrolling Interest [Line Items]
Number of Wells, Net | well										1,300
Noncontrolling Interest, Chesapeake Utica L L C [Member] | Wells, Percentage Increase in Future Net Wells [Member]
Noncontrolling Interest [Line Items]
Percentage of increase in leasehold in which commitment to drill is not met										4.00%
Noncontrolling Interest, Chesapeake Granite Wash Trust [Member]
Noncontrolling Interest [Line Items]
Number Of Net Acres | a										29,000
Stockholders' Equity Attributable to Noncontrolling Interest	$ 271						$ 271			$ 271		$ 287
Net income (loss) attributable to noncontrolling interests							$ 1	$ 2		$ 1	$ 7
Common stock, par value (usd per share) | $ / shares															$ 19.00
Common shares, outstanding | shares	46,750,000						46,750,000			46,750,000
Percentage Of Beneficial Interest Owned										51.00%
Number of producing wells | well	69						69			69
Number of development wells drilled | well										104	93
Number Of Gross Acres | a										45,400
Maximum amount recoverable by trust under lien									$ 263	$ 32	$ 55
Quarters of Paid Distributions | Quarter										12
Percentage of incentive distributions received										50.00%
Percentage of remaining cash available for distribution in excess of the incentive threshold										50.00%
Noncontrolling Interest, Chesapeake Granite Wash Trust [Member] | Minimum [Member]
Noncontrolling Interest [Line Items]
Percentage of proceeds from royalty interest conveyed to trust										50.00%
Noncontrolling Interest, Chesapeake Granite Wash Trust [Member] | Maximum [Member]
Noncontrolling Interest [Line Items]
Percentage of proceeds from royalty interest conveyed to trust										90.00%
Noncontrolling Interest, Chesapeake Granite Wash Trust [Member] | Wells, Initial Number of Wells [Member]
Noncontrolling Interest [Line Items]
Number of development wells drilled | well										118
Noncontrolling Interest, Chesapeake Granite Wash Trust [Member] | Common Unit [Member]
Noncontrolling Interest [Line Items]
Common Stock, Shares, Issued | shares															23,000,000
Common shares, outstanding | shares	12,062,500						12,062,500			12,062,500
Noncontrolling Interest, Chesapeake Granite Wash Trust [Member] | Subordinated Units [Member]
Noncontrolling Interest [Line Items]
Common shares, outstanding | shares	11,687,500						11,687,500			11,687,500