Restructuring and Other Termination Benefits - Narrative (Details) (USD $) In Millions, unless otherwise specified	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012 Employee	Dec. 31, 2011	Feb. 07, 2013 Employee
Defined Benefit Plan Disclosure [Line Items]
Restructuring and Related Cost, Number of Positions Eliminated	900
Severance Costs	$ 50	$ 5	$ 0
Ceo Aubrey K Mcclendon [Member]
Defined Benefit Plan Disclosure [Line Items]
Severance Costs	69	0	0
Workforce Reduction Plan [Member]
Defined Benefit Plan Disclosure [Line Items]
Restructuring and Related Cost, Incurred Cost	66	0	0
VSP Program
Defined Benefit Plan Disclosure [Line Items]
Severance Costs	$ 63	$ 2	$ 0
Number of Employees Selected for Voluntary Program		275
Number of Employees That Selected Voluntary Program				211