Liabilities Subject to Compromise, Debt and Accrued Interest, Fair Value

No definition available.

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

- Definition

Long-term Debt, Excluding Current Maturities, Fair Value

+ References

No definition available.

+ Details

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

- Definition

Amount of short-term debt and current maturity of long-term debt and capital lease obligations due within one year or the normal operating cycle, if longer.

+ References

+ Details

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

- Definition

Amount, before unamortized (discount) premium and debt issuance costs, of long-term debt. Includes, but is not limited to, notes payable, bonds payable, commercial loans, mortgage loans, convertible debt, subordinated debt and other types of debt.

+ References

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

- Definition

Contractual interest rate for funds borrowed, under the debt agreement.

+ References

+ Details

Name:	us-gaap_DebtInstrumentInterestRateStatedPercentage
Namespace Prefix:	us-gaap_
Data Type:	num:percentItemType
Balance Type:	na
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

Amount, after accumulated amortization, of debt premium.

+ References

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

- Definition

The total amount of long-term liability charges that are being deferred beyond one year.

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

- Definition

The amount of debt and related accrued interest included in liabilities subject to compromise.

+ References

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Name:	us-gaap_LiabilitiesSubjectToCompromiseDebtAndAccruedInterest
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Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

The carrying value as of the balance sheet date of the current and noncurrent portions of long-term obligations drawn from a line of credit, which is a bank's commitment to make loans up to a specific amount. Examples of items that might be included in the application of this element may consist of letters of credit, standby letters of credit, and revolving credit arrangements, under which borrowings can be made up to a maximum amount as of any point in time conditional on satisfaction of specified terms before, as of and after the date of drawdowns on the line. Includes short-term obligations that would normally be classified as current liabilities but for which (a) postbalance sheet date issuance of a long term obligation to refinance the short term obligation on a long term basis, or (b) the enterprise has entered into a financing agreement that clearly permits the enterprise to refinance the short-term obligation on a long term basis and the following conditions are met (1) the agreement does not expire within 1 year and is not cancelable by the lender except for violation of an objectively determinable provision, (2) no violation exists at the BS date, and (3) the lender has entered into the financing agreement is expected to be financially capable of honoring the agreement.

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+ Details

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

- Definition

Amount, after unamortized (discount) premium and debt issuance costs, of long-term debt, classified as current. Includes, but not limited to, notes payable, bonds payable, debentures, mortgage loans and commercial paper. Excludes capital lease obligations.

+ References

+ Details

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

- Definition

The fair value amount of long-term debt whether such amount is presented as a separate caption or as a parenthetical disclosure. Additionally, this element may be used in connection with the fair value disclosures required in the footnote disclosures to the financial statements. The element may be used in both the balance sheet and disclosure in the same submission.

+ References

No definition available.

+ Details

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

- Definition

Amount after unamortized (discount) premium and debt issuance costs of long-term debt classified as noncurrent and excluding amounts to be repaid within one year or the normal operating cycle, if longer. Includes, but not limited to, notes payable, bonds payable, debentures, mortgage loans and commercial paper. Excludes capital lease obligations.

+ References

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Period Type:	instant

Debt - Long-Term Debt Table (Details) - USD ($) $ in Millions	Mar. 31, 2021	Feb. 09, 2021	Dec. 31, 2020	Jun. 28, 2020
Debt Instrument [Line Items]
Carrying amount	$ 1,262		$ 9,095
Fair value	1,272		3,666
Debt issuance costs	(10)		0
Less current maturities of long-term debt	0		(1,929)
Less current maturities of long-term debt	0		(1,929)
Less amounts reclassified to liabilities subject to compromise	0		(7,166)
Less amounts reclassified to liabilities subject to compromise	0		(1,737)
Total long-term debt, net	1,262		0
Total long-term debt, net	$ 1,272		0
5.5% senior notes due 2026
Debt Instrument [Line Items]
Interest rate, stated percentage	5.50%
Line of Credit \| Debtor-in-Possession Credit Agreement
Debt Instrument [Line Items]
Chesapeake revolving credit facility	$ 0		0
Fair value	0		0
Line of Credit \| Exit Credit Facility - Tranche A Loans
Debt Instrument [Line Items]
Chesapeake revolving credit facility	0		0
Fair value	0		0
Line of Credit \| Exit Credit Facility - Tranche B Loans
Debt Instrument [Line Items]
Chesapeake revolving credit facility	221		0
Fair value	221		0
Line of Credit \| Revolving credit facility
Debt Instrument [Line Items]
Chesapeake revolving credit facility	0		1,929
Fair value	0		1,929
Line of Credit \| Revolving credit facility \| Debtor-in-Possession Credit Agreement
Debt Instrument [Line Items]
Carrying amount				$ 750
Term Loan
Debt Instrument [Line Items]
Carrying amount	0		1,500
Fair value	0		1,220
Senior Notes
Debt Instrument [Line Items]
Unamortized premium	$ 51		0
Senior Notes \| 5.5% senior notes due 2026
Debt Instrument [Line Items]
Interest rate, stated percentage	0.055%	5.50%
Carrying amount	$ 500		0
Fair value	$ 521		0
Senior Notes \| 5.875% senior notes due 2029
Debt Instrument [Line Items]
Interest rate, stated percentage	0.05875%	5.875%
Carrying amount	$ 500		0
Fair value	$ 530		0
Senior Notes \| 11.5% senior secured second lien notes due 2025
Debt Instrument [Line Items]
Interest rate, stated percentage	0.00115%
Carrying amount	$ 0		2,330
Fair value	$ 0		373
Senior Notes \| 6.625% senior notes due 2020
Debt Instrument [Line Items]
Interest rate, stated percentage	0.06625%
Carrying amount	$ 0		176
Fair value	$ 0		8
Senior Notes \| 6.875% senior notes due 2020
Debt Instrument [Line Items]
Interest rate, stated percentage	0.06875%
Carrying amount	$ 0		73
Fair value	$ 0		3
Senior Notes \| 6.125% senior notes due 2021
Debt Instrument [Line Items]
Interest rate, stated percentage	0.06125%
Carrying amount	$ 0		167
Fair value	$ 0		7
Senior Notes \| 5.375% senior notes due 2021
Debt Instrument [Line Items]
Interest rate, stated percentage	0.05375%
Carrying amount	$ 0		127
Fair value	$ 0		5
Senior Notes \| 4.875% senior notes due 2022
Debt Instrument [Line Items]
Interest rate, stated percentage	0.04875%
Carrying amount	$ 0		272
Fair value	$ 0		12
Senior Notes \| 5.75% senior notes due 2023
Debt Instrument [Line Items]
Interest rate, stated percentage	0.00058%
Carrying amount	$ 0		167
Fair value	$ 0		8
Senior Notes \| 7.00% senior notes due 2024
Debt Instrument [Line Items]
Interest rate, stated percentage	0.0007%
Carrying amount	$ 0		624
Fair value	$ 0		29
Senior Notes \| 6.875% senior notes due 2025
Debt Instrument [Line Items]
Interest rate, stated percentage	0.06875%
Carrying amount	$ 0		2
Fair value	$ 0		2
Senior Notes \| 8.00% senior notes due 2025
Debt Instrument [Line Items]
Interest rate, stated percentage	0.0008%
Carrying amount	$ 0		246
Fair value	$ 0		10
Senior Notes \| 7.5% senior notes due 2026
Debt Instrument [Line Items]
Interest rate, stated percentage	0.00075%
Carrying amount	$ 0		119
Fair value	$ 0		5
Senior Notes \| 8.00% senior notes due 2026
Debt Instrument [Line Items]
Interest rate, stated percentage	0.0008%
Carrying amount	$ 0		46
Fair value	$ 0		2
Senior Notes \| 8.00% senior notes due 2027
Debt Instrument [Line Items]
Interest rate, stated percentage	0.0008%
Carrying amount	$ 0		253
Fair value	$ 0		11
Convertible Debt \| 5.5% convertible senior notes due 2026
Debt Instrument [Line Items]
Interest rate, stated percentage	0.00055%
Carrying amount	$ 0		1,064
Fair value	$ 0		$ 42