Related Party Transactions (Narrative) (Details) (USD $) In Millions, unless otherwise specified	12 Months Ended
	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010
Related Party Transaction [Line Items]
Naming Rights Fee	$ 7	$ 6
Other Accrued Liabilities, Current	563	473
CEO Payment to the Company	12
Related Party Transaction Schedule	30
Ceo Aubrey K. Mcclendon
Related Party Transaction [Line Items]
Due from Officers or Stockholders	23	45
Early Termination Period	18 months
FWPP Term	10 years
Maximum Partners Participatory Interest In New Ventures	2.50%
Minimum entitys working interest in new ventures	12.50%
Vesting Period for Executive Incentive Agreement	five-year
Incentive fee, amount paid	75
Incentive Fee Employment Tax Effects	1
Related Party Transaction, Expenses from Transactions with Related Party	15
Amount of Executive Incentive Applied Against Costs Attributable to Interests in Company Ventures	44
Chesapeake Midstream Partners, L.P.
Related Party Transaction [Line Items]
Equity Method Investment, Ownership Percentage	46.00%
Related Party Transaction, Due from (to) Related Party	5	2
FTS International LLC
Related Party Transaction [Line Items]
Equity Method Investment, Ownership Percentage	30.00%
Property, Plant and Equipment, Additions	73
Related Party Transaction, Due from (to) Related Party	42	115	30
Payment For Transaction with Related Party	480	369	89
Professional Basketball Club LLC
Related Party Transaction [Line Items]
Equity Method Investment, Ownership Percentage	19.20%
Oklahoma City Thunder
Related Party Transaction [Line Items]
Contract Term	12 years
Advertising Expense	3
Other Accrued Liabilities, Current	3
Minimum
Related Party Transaction [Line Items]
Equity Method Investment, Ownership Percentage	20.00%
Benefit Fee	3
Maximum
Related Party Transaction [Line Items]
Equity Method Investment, Ownership Percentage	50.00%
Benefit Fee	$ 4