Other Liabilities, Long-Term (Details) (USD $) In Millions, unless otherwise specified	Jun. 30, 2013	Dec. 31, 2012
Other Long-Term Liabilities [Line Items]
Financing Lease Obligations, Noncurrent	$ 141	$ 143
Mortgages Payable Noncurrent	0	56
Other Accrued Liabilities, Noncurrent	505	538
Other Liabilities, Noncurrent	1,069	1,176
Chesapeake Utica L L C [Member]
Other Long-Term Liabilities [Line Items]
Conveyance Obligation Noncurrent	266	275
Other Liabilities, Noncurrent	287	293
Chesapeake Cleveland Tonkawa L.L.C
Other Long-Term Liabilities [Line Items]
Conveyance Obligation Noncurrent	157	164
Other Liabilities, Noncurrent	$ 168	$ 178