Additional Indebtedness

No definition available.

Name:	chk_AdditionalIndebtedness
Namespace Prefix:	chk_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Additional Indebtedness After Term Loan

+ References

No definition available.

+ Details

Name:	chk_AdditionalIndebtednessAfterTermLoan
Namespace Prefix:	chk_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Collateral Coverage Ratio

+ References

No definition available.

+ Details

Name:	chk_CollateralCoverageRatio
Namespace Prefix:	chk_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

- Definition

Interest Coverage Ratio

+ References

No definition available.

+ Details

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Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

- Definition

Minimum Liquidity Requirement If Covenant Ratio Is At Or Above 1.1 to 1.0

+ References

No definition available.

+ Details

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

- Definition

Face (par) amount of debt instrument at time of issuance.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 835
-SubTopic 30
-Section 55
-Paragraph 8
-URI http://asc.fasb.org/extlink&oid=64930739&loc=d3e28878-108400

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 835
-SubTopic 30
-Section 45
-Paragraph 2
-URI http://asc.fasb.org/extlink&oid=64930785&loc=d3e28551-108399

+ Details

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

No definition available.

+ Details

Name:	us-gaap_DebtInstrumentLineItems
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

- Definition

Carrying value of amounts transferred to third parties for security purposes that are expected to be returned or applied towards payment in the future.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02.17)
-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

+ Details

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Definition

The total amount of the contingent obligation under letters of credit outstanding as of the reporting date.

+ References

No definition available.

+ Details

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Amount of current borrowing capacity under the credit facility considering any current restrictions on the amount that could be borrowed (for example, borrowings may be limited by the amount of current assets), but without considering any amounts currently outstanding under the facility.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02.19(b),22(b))
-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

+ Details

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Maximum borrowing capacity under the credit facility without consideration of any current restrictions on the amount that could be borrowed or the amounts currently outstanding under the facility.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02.19(b),22(b))
-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

+ Details

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

The amount of cash paid for the settlement of litigation or for other legal issues during the period.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 25
-Subparagraph (g)
-URI http://asc.fasb.org/extlink&oid=66902209&loc=d3e3536-108585

+ Details

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Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

- Details

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Balance Type:
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- Details

Name:	us-gaap_DebtInstrumentAxis=chk_SixPointSevenSevenFivePercentSeniorNotesDueTwoThousandNineteenMember
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Period Type:

- Details

Name:	us-gaap_LongtermDebtTypeAxis=us-gaap_SeniorNotesMember
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- Details

Name:	us-gaap_SubsequentEventTypeAxis=us-gaap_SubsequentEventMember
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Data Type:	na
Balance Type:
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- Details

Name:	us-gaap_CreditFacilityAxis=us-gaap_RevolvingCreditFacilityMember
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Balance Type:
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- Details

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- Details

Name:	us-gaap_LienCategoryAxis=us-gaap_SeniorLienMember
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- Details

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- Details

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Debt - Revolving Credit Facility Narrative (Details) - USD ($) $ in Millions		3 Months Ended
	Apr. 28, 2017	Dec. 31, 2017	Sep. 30, 2017	Jun. 30, 2017	Mar. 31, 2017	Dec. 31, 2016
Long-Term Debt Instrument [Line Items]
Debt Instrument, Face Amount					$ 9,081	$ 9,989
Redemption of 2019 Notes [Member] \| 6.75% Senior Notes Due 2019 [Member] \| Senior Notes [Member]
Long-Term Debt Instrument [Line Items]
Supersedeas Bond					461
Redemption of 2019 Notes [Member] \| 6.75% Senior Notes Due 2019 [Member] \| Senior Notes [Member] \| Subsequent Event [Member]
Long-Term Debt Instrument [Line Items]
Payments for Legal Settlements	$ 441
Revolving Credit Facility [Member]
Long-Term Debt Instrument [Line Items]
Borrowing capacity					4,000
Letters of Credit Outstanding, Amount					697
Line of Credit Facility, Current Borrowing Capacity						$ 3,800
Minimum Liquidity Requirement When Covenant Ratio Is At Or Above 1.1 to 1.0					$ 500
Interest Coverage Ratio					0.65 to 1.0	1.1 to 1.0
Collateral Coverage Ratio					1.25 to 1.0
Revolving Credit Facility [Member] \| Maximum [Member]
Long-Term Debt Instrument [Line Items]
Additional Indebtedness After Term Loan					$ 1,000
Revolving Credit Facility [Member] \| First Lien [Member] \| Maximum [Member]
Long-Term Debt Instrument [Line Items]
Additional Indebtedness					2,500
Revolving Credit Facility [Member] \| Scenario, Forecast [Member]
Long-Term Debt Instrument [Line Items]
Interest Coverage Ratio		1.25 to 1.0	1.2 to 1.0	0.70 to 1.0
Revolving Credit Facility [Member] \| Line of Credit [Member]
Long-Term Debt Instrument [Line Items]
Debt Instrument, Face Amount					$ 0	$ 0