XML 127 R103.htm IDEA: XBRL DOCUMENT
v3.20.4

Derivative and Hedging Activities - Derivative Instruments (Details) $ in Millions | 12 Months Ended
--- | ---
Dec. 31, 2020 USD ($) Bcf MMBbls | Dec. 31, 2019 USD ($) Bcf MMBbls
Derivative [Line Items] |  |
Total derivatives | $ (118) | $ 130
Energy related derivative |  |
Derivative [Line Items] |  |
Total derivatives | $ (118) | $ 130
Energy related derivative | Oil |  |
Derivative [Line Items] |  |
Notional, volume | MMBbls | 34,000,000 | 34
Total derivatives | $ (137) | $ 5
Energy related derivative | Oil | Fixed-price swaps |  |
Derivative [Line Items] |  |
Notional, volume | MMBbls | 27,000,000 | 24
Total derivatives | $ (136) | $ (7)
Energy related derivative | Oil | Collars |  |
Derivative [Line Items] |  |
Notional, volume | MMBbls | 0 | 2
Total derivatives | $ 0 | $ 14
Energy related derivative | Oil | Basis protection swaps |  |
Derivative [Line Items] |  |
Notional, volume | MMBbls | 7,000,000 | 8
Total derivatives | $ (1) | $ (2)
Energy related derivative | Natural gas |  |
Derivative [Line Items] |  |
Notional, volume | Bcf | 847,000,000 | 346
Total derivatives | $ 19 | $ 125
Energy related derivative | Natural gas | Fixed-price swaps |  |
Derivative [Line Items] |  |
Notional, volume | Bcf | 728,000,000 | 265
Total derivatives | $ 10 | $ 125
Energy related derivative | Natural gas | Collars |  |
Derivative [Line Items] |  |
Notional, volume | Bcf | 53,000,000 | 0
Total derivatives | $ 8 | $ 0
Energy related derivative | Natural gas | Call options (sold) |  |
Derivative [Line Items] |  |
Notional, volume | Bcf | 0 | 22
Total derivatives | $ 0 | $ 0
Energy related derivative | Natural gas | Call swaptions |  |
Derivative [Line Items] |  |
Notional, volume | Bcf | 0 | 29
Total derivatives | $ 0 | $ (2)
Energy related derivative | Natural gas | Basis protection swaps |  |
Derivative [Line Items] |  |
Notional, volume | Bcf | 66,000,000 | 30
Total derivatives | $ 1 | $ 2

X
- Definition Fair values as of the balance sheet date of the net amount of all assets and liabilities resulting from contracts that meet the criteria of being accounted for as derivative instruments. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 45 -Paragraph 5 -URI http://asc.fasb.org/extlink&oid=117331979&loc=d3e41228-113958 + Details
Name: | us-gaap_DerivativeAssetsLiabilitiesAtFairValueNet
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- 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_DerivativeLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Nominal volume used to calculate payments on a derivative instrument. + References No definition available. + Details
Name: | us-gaap_DerivativeNonmonetaryNotionalAmountVolume
Namespace Prefix: | us-gaap_
Data Type: | num:volumeItemType
Balance Type: | na
Period Type: | duration

X
- Details
Name: | us-gaap_DerivativeInstrumentRiskAxis=us-gaap_EnergyRelatedDerivativeMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_ReserveQuantitiesByTypeOfReserveAxis=srt_OilReservesMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FinancialInstrumentAxis=us-gaap_SwapMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FinancialInstrumentAxis=chk_CollarMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FinancialInstrumentAxis=us-gaap_BasisSwapMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_ReserveQuantitiesByTypeOfReserveAxis=srt_NaturalGasReservesMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FinancialInstrumentAxis=us-gaap_CallOptionMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FinancialInstrumentAxis=us-gaap_SwaptionMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |