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Contingencies - Narrative (Details) (USD $)
In Millions, unless otherwise specified
3 Months Ended 0 Months Ended
Mar. 31, 2015
Mar. 31, 2014
Apr. 24, 2015
Loss Contingencies [Line Items]      
Provision for legal contingencies $ 25us-gaap_LossContingencyAccrualProvision $ 0us-gaap_LossContingencyAccrualProvision  
Settled Litigation [Member]      
Loss Contingencies [Line Items]      
Estimated Litigation Liability 119us-gaap_LitigationReserve
/ us-gaap_LitigationStatusAxis
= us-gaap_SettledLitigationMember
   
Michigan Antitrust [Member] | Subsequent Event [Member]      
Loss Contingencies [Line Items]      
Loss Contingency, Claims Settled, Number     1us-gaap_LossContingencyPendingClaimsNumber
/ us-gaap_LitigationCaseAxis
= chk_MichiganAntitrustMember
/ us-gaap_SubsequentEventTypeAxis
= us-gaap_SubsequentEventMember
Michigan False Pretenses [Member] | Subsequent Event [Member]      
Loss Contingencies [Line Items]      
Loss Contingency, Claims Settled, Number     1us-gaap_LossContingencyPendingClaimsNumber
/ us-gaap_LitigationCaseAxis
= chk_MichiganFalsePretensesMember
/ us-gaap_SubsequentEventTypeAxis
= us-gaap_SubsequentEventMember
Michigan Landowners [Member] | Maximum [Member]      
Loss Contingencies [Line Items]      
Provision for legal contingencies 25us-gaap_LossContingencyAccrualProvision
/ us-gaap_LitigationCaseAxis
= chk_MichiganLandownersMember
/ us-gaap_RangeAxis
= us-gaap_MaximumMember
   
Michigan Landowners [Member] | Subsequent Event [Member]      
Loss Contingencies [Line Items]      
Advisement Period     11 months
Redemption of 2019 Notes [Member] | Minimum [Member]      
Loss Contingencies [Line Items]      
Estimated Litigation Liability 100us-gaap_LitigationReserve
/ us-gaap_LitigationCaseAxis
= chk_Redemptionof2019NotesMember
/ us-gaap_RangeAxis
= us-gaap_MinimumMember
   
Redemption of 2019 Notes [Member] | Maximum [Member]      
Loss Contingencies [Line Items]      
Estimated Litigation Liability $ 380us-gaap_LitigationReserve
/ us-gaap_LitigationCaseAxis
= chk_Redemptionof2019NotesMember
/ us-gaap_RangeAxis
= us-gaap_MaximumMember