CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS (Parenthetical) (USD $) In Millions, unless otherwise specified	6 Months Ended
Jun. 30, 2012	Jun. 30, 2011
Dividends payable on common and preferred stock	$ 100	$ 99
Natural gas and oil properties adjusted as a result of an increase in accrued acquisition, drilling and completion costs	(55)	92
Other property and equipment adjusted as a result of an increase in accrued costs	49	37
Liabilities related to the purchase of proved and unproved properties	$ 62	$ 206

Other Property, Plant and Equipment Adjusted as Result of Change in Accrued Costs

No definition available.

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Namespace Prefix:	chk_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration