XML 60 R47.htm IDEA: XBRL DOCUMENT
v3.22.2

Debt - Schedule of Long-term Debt (Details) - USD ($) $ in Millions | Jun. 30, 2022 | May 31, 2022 | Dec. 31, 2021
--- | --- | --- | ---
Debt Instrument [Line Items] |  |  |
Long-term and short-term, combined amount, gross | $ 16,208 |  | $ 17,766
Finance leases | 1,284 |  | 1,261
Net unamortized premiums, discounts and debt issuance costs | (521) |  | 907
Total debt | 16,971 |  | 19,934
Short-term debt | (676) |  | (1,200)
Long-term debt | $ 16,295 |  | 18,734
2.4% Notes due 2022 | Notes Payable to Banks |  |  |
Debt Instrument [Line Items] |  |  |
Stated interest rate | 2.40% |  |
Long-term and short-term, combined amount, gross | $ 329 |  | 329
7.65% Debentures due 2023 | Debentures |  |  |
Debt Instrument [Line Items] |  |  |
Stated interest rate | 7.65% |  |
Long-term and short-term, combined amount, gross | $ 78 |  | 78
3.35% Notes due 2024 | Notes Payable to Banks |  |  |
Debt Instrument [Line Items] |  |  |
Stated interest rate | 3.35% |  |
Long-term and short-term, combined amount, gross | $ 426 |  | 426
2.125% Notes due 2024 | Notes Payable to Banks |  |  |
Debt Instrument [Line Items] |  |  |
Stated interest rate | 2.125% |  |
Long-term and short-term, combined amount, gross | $ 900 |  | 0
8.2% Notes due 2025 | Notes Payable to Banks |  |  |
Debt Instrument [Line Items] |  |  |
Stated interest rate | 8.20% |  |
Long-term and short-term, combined amount, gross | $ 134 |  | 134
3.35% Debentures due 2025 | Debentures |  |  |
Debt Instrument [Line Items] |  |  |
Stated interest rate | 3.35% |  |
Long-term and short-term, combined amount, gross | $ 199 |  | 199
2.4% Notes due 2025 | Notes Payable to Banks |  |  |
Debt Instrument [Line Items] |  |  |
Stated interest rate | 2.40% |  |
Long-term and short-term, combined amount, gross | $ 900 |  | 0
6.875% Debentures due 2026 | Debentures |  |  |
Debt Instrument [Line Items] |  |  |
Stated interest rate | 6.875% |  |
Long-term and short-term, combined amount, gross | $ 67 |  | 67
4.95% Notes due 2026 | Notes Payable to Banks |  |  |
Debt Instrument [Line Items] |  |  |
Stated interest rate | 4.95% | 4.95% |
Long-term and short-term, combined amount, gross | $ 0 |  | 1,250
7.8% Debentures due 2027 | Notes Payable to Banks |  |  |
Debt Instrument [Line Items] |  |  |
Stated interest rate | 7.80% |  |
Long-term and short-term, combined amount, gross | $ 203 |  | 203
3.75% Notes due 2027 | Notes Payable to Banks |  |  |
Debt Instrument [Line Items] |  |  |
Stated interest rate | 3.75% |  |
Long-term and short-term, combined amount, gross | $ 196 |  | 1,000
4.3% Notes due 2028 | Notes Payable to Banks |  |  |
Debt Instrument [Line Items] |  |  |
Stated interest rate | 4.30% |  |
Long-term and short-term, combined amount, gross | $ 223 |  | 1,000
7.375% Debentures due 2029 | Debentures |  |  |
Debt Instrument [Line Items] |  |  |
Stated interest rate | 7.375% |  |
Long-term and short-term, combined amount, gross | $ 92 |  | 92
7% Debentures due 2029 | Notes Payable to Banks |  |  |
Debt Instrument [Line Items] |  |  |
Stated interest rate | 7.00% |  |
7% Debentures due 2029 | Debentures |  |  |
Debt Instrument [Line Items] |  |  |
Stated interest rate | 7.00% |  |
Long-term and short-term, combined amount, gross | $ 112 |  | 200
6.95% Notes due 2029 | Notes Payable to Banks |  |  |
Debt Instrument [Line Items] |  |  |
Stated interest rate | 6.95% |  |
Long-term and short-term, combined amount, gross | $ 1,195 |  | 1,549
8.125% Notes due 2030 | Notes Payable to Banks |  |  |
Debt Instrument [Line Items] |  |  |
Stated interest rate | 8.125% |  |
Long-term and short-term, combined amount, gross | $ 390 |  | 390
7.4% Notes due 2031 | Notes Payable to Banks |  |  |
Debt Instrument [Line Items] |  |  |
Stated interest rate | 7.40% |  |
Long-term and short-term, combined amount, gross | $ 382 |  | 500
7.25% Notes due 2031 | Notes Payable to Banks |  |  |
Debt Instrument [Line Items] |  |  |
Stated interest rate | 7.25% |  |
Long-term and short-term, combined amount, gross | $ 400 |  | 500
7.2% Notes due 2031 | Notes Payable to Banks |  |  |
Debt Instrument [Line Items] |  |  |
Stated interest rate | 7.20% |  |
Long-term and short-term, combined amount, gross | $ 447 |  | 575
2.4% Notes due 2031 | Notes Payable to Banks |  |  |
Debt Instrument [Line Items] |  |  |
Stated interest rate | 2.40% |  |
Long-term and short-term, combined amount, gross | $ 227 |  | 500
5.9% Notes due 2032 | Notes Payable to Banks |  |  |
Debt Instrument [Line Items] |  |  |
Stated interest rate | 5.90% |  |
Long-term and short-term, combined amount, gross | $ 505 |  | 505
4.15% Notes due 2034 | Notes Payable to Banks |  |  |
Debt Instrument [Line Items] |  |  |
Stated interest rate | 4.15% |  |
Long-term and short-term, combined amount, gross | $ 246 |  | 246
5.95% Notes due 2036 | Notes Payable to Banks |  |  |
Debt Instrument [Line Items] |  |  |
Stated interest rate | 5.95% |  |
Long-term and short-term, combined amount, gross | $ 326 |  | 500
5.951% Notes due 2037 | Notes Payable to Banks |  |  |
Debt Instrument [Line Items] |  |  |
Stated interest rate | 5.951% |  |
Long-term and short-term, combined amount, gross | $ 645 |  | 645
5.9% Notes due 2038 | Notes Payable to Banks |  |  |
Debt Instrument [Line Items] |  |  |
Stated interest rate | 5.90% |  |
Long-term and short-term, combined amount, gross | $ 350 |  | 600
6.5% Notes due 2039 | Notes Payable to Banks |  |  |
Debt Instrument [Line Items] |  |  |
Stated interest rate | 6.50% |  |
Long-term and short-term, combined amount, gross | $ 1,588 |  | 2,750
3.758% Notes due 2042 | Notes Payable to Banks |  |  |
Debt Instrument [Line Items] |  |  |
Stated interest rate | 3.758% |  |
Long-term and short-term, combined amount, gross | $ 785 |  | 0
4.3% Notes due 2044 | Notes Payable to Banks |  |  |
Debt Instrument [Line Items] |  |  |
Stated interest rate | 4.30% |  |
Long-term and short-term, combined amount, gross | $ 750 |  | 750
5.95% Notes due 2046 | Notes Payable to Banks |  |  |
Debt Instrument [Line Items] |  |  |
Stated interest rate | 5.95% |  |
Long-term and short-term, combined amount, gross | $ 329 |  | 500
7.9% Debentures due 2047 | Debentures |  |  |
Debt Instrument [Line Items] |  |  |
Stated interest rate | 7.90% |  |
Long-term and short-term, combined amount, gross | $ 60 |  | 60
4.875% Notes due 2047 | Notes Payable to Banks |  |  |
Debt Instrument [Line Items] |  |  |
Stated interest rate | 4.875% |  |
Long-term and short-term, combined amount, gross | $ 319 |  | 800
4.85% Notes due 2048 | Notes Payable to Banks |  |  |
Debt Instrument [Line Items] |  |  |
Stated interest rate | 4.85% |  |
Long-term and short-term, combined amount, gross | $ 219 |  | 600
3.8% Notes due 2052 | Notes Payable to Banks |  |  |
Debt Instrument [Line Items] |  |  |
Stated interest rate | 3.80% |  |
Long-term and short-term, combined amount, gross | $ 1,100 |  | 0
4.025% Notes due 2062 | Notes Payable to Banks |  |  |
Debt Instrument [Line Items] |  |  |
Stated interest rate | 4.025% |  |
Long-term and short-term, combined amount, gross | $ 1,770 |  | 0
Floating rate notes due 2022 at 1.06% – 1.41% during 2022 and 1.02% –1.12% during 2021 | Floating Rate Notes |  |  |
Debt Instrument [Line Items] |  |  |
Long-term and short-term, combined amount, gross | $ 0 |  | $ 500
Floating rate notes due 2022 at 1.06% – 1.41% during 2022 and 1.02% –1.12% during 2021 | Floating Rate Notes | Minimum |  |  |
Debt Instrument [Line Items] |  |  |
Stated interest rate | 1.06% |  | 1.02%
Floating rate notes due 2022 at 1.06% – 1.41% during 2022 and 1.02% –1.12% during 2021 | Floating Rate Notes | Maximum |  |  |
Debt Instrument [Line Items] |  |  |
Stated interest rate | 1.41% |  | 1.12%
Marine Terminal Revenue Refunding Bonds due 2031 at 0.07% – 1.09% during 2022 and 0.04% – 0.15% during 2021 | Variable Rate Debt Bonds |  |  |
Debt Instrument [Line Items] |  |  |
Long-term and short-term, combined amount, gross | $ 265 |  | $ 265
Marine Terminal Revenue Refunding Bonds due 2031 at 0.07% – 1.09% during 2022 and 0.04% – 0.15% during 2021 | Variable Rate Debt Bonds | Minimum |  |  |
Debt Instrument [Line Items] |  |  |
Stated interest rate | 0.07% |  | 0.04%
Marine Terminal Revenue Refunding Bonds due 2031 at 0.07% – 1.09% during 2022 and 0.04% – 0.15% during 2021 | Variable Rate Debt Bonds | Maximum |  |  |
Debt Instrument [Line Items] |  |  |
Stated interest rate | 1.09% |  | 0.15%
Industrial Development Bonds due 2035 at 0.07% – 1.09% during 2022 and 0.04% – 0.12% during 2021 | Variable Rate Debt Bonds |  |  |
Debt Instrument [Line Items] |  |  |
Long-term and short-term, combined amount, gross | $ 18 |  | $ 18
Industrial Development Bonds due 2035 at 0.07% – 1.09% during 2022 and 0.04% – 0.12% during 2021 | Variable Rate Debt Bonds | Minimum |  |  |
Debt Instrument [Line Items] |  |  |
Stated interest rate | 0.07% |  | 0.04%
Industrial Development Bonds due 2035 at 0.07% – 1.09% during 2022 and 0.04% – 0.12% during 2021 | Variable Rate Debt Bonds | Maximum |  |  |
Debt Instrument [Line Items] |  |  |
Stated interest rate | 1.09% |  | 0.12%
Other |  |  |
Debt Instrument [Line Items] |  |  |
Long-term and short-term, combined amount, gross | $ 33 |  | $ 35

X
- Definition Debt, Long-Term and Short-Term, Combined Amount, Gross + References No definition available. + Details
Name: | cop_DebtLongTermAndShortTermCombinedAmountGross
Namespace Prefix: | cop_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- 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 Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.19,20) -URI http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682 + Details
Name: | us-gaap_DebtCurrent
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Contractual interest rate for funds borrowed, under the debt agreement. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 470 -SubTopic 20 -Section 50 -Paragraph 1B -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=123466505&loc=SL123495323-112611 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.22(a)(1)) -URI http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682 + Details
Name: | us-gaap_DebtInstrumentInterestRateStatedPercentage
Namespace Prefix: | us-gaap_
Data Type: | dtr-types:percentItemType
Balance Type: | na
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_DebtInstrumentLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Amount, after accumulated amortization, of debt discount (premium). + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 835 -SubTopic 30 -Section 45 -Paragraph 3 -URI http://asc.fasb.org/extlink&oid=124435984&loc=d3e28555-108399 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 835 -SubTopic 30 -Section 45 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=124435984&loc=d3e28551-108399 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 835 -SubTopic 30 -Section 45 -Paragraph 4 -URI http://asc.fasb.org/extlink&oid=124435984&loc=d3e28567-108399 Reference 4: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 835 -SubTopic 30 -Section 45 -Paragraph 1A -URI http://asc.fasb.org/extlink&oid=124435984&loc=d3e28541-108399 Reference 5: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 470 -SubTopic 20 -Section 50 -Paragraph 1D -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=123466505&loc=SL123495340-112611 Reference 6: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 835 -SubTopic 30 -Section 55 -Paragraph 8 -URI http://asc.fasb.org/extlink&oid=114775985&loc=d3e28878-108400 + Details
Name: | us-gaap_DebtInstrumentUnamortizedDiscountPremiumNet
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Present value of lessee's discounted obligation for lease payments from finance lease. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 842 -SubTopic 20 -Section 50 -Paragraph 6 -URI http://asc.fasb.org/extlink&oid=123408670&loc=SL77918701-209980 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 842 -SubTopic 20 -Section 45 -Paragraph 1 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=123391704&loc=SL77918627-209977 + Details
Name: | us-gaap_FinanceLeaseLiability
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Amount of long-term debt and lease obligation, classified as noncurrent. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(22)) -URI http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682 + Details
Name: | us-gaap_LongTermDebtAndCapitalLeaseObligations
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Amount of long-term debt and lease obligation, including portion classified as current. + References No definition available. + Details
Name: | us-gaap_LongTermDebtAndCapitalLeaseObligationsIncludingCurrentMaturities
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Details
Name: | us-gaap_DebtInstrumentAxis=cop_A24NotesDue2022Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_LongtermDebtTypeAxis=us-gaap_NotesPayableToBanksMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_DebtInstrumentAxis=cop_A765DebenturesDue2023Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_LongtermDebtTypeAxis=us-gaap_UnsecuredDebtMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_DebtInstrumentAxis=cop_A335NotesDue2024Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_DebtInstrumentAxis=cop_A2125NoteDue2024Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_DebtInstrumentAxis=cop_A82NotesDue2025Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_DebtInstrumentAxis=cop_A335DebenturesDue2025Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_DebtInstrumentAxis=cop_A24NoteDue2025Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_DebtInstrumentAxis=cop_A6875DebenturesDue2026Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_DebtInstrumentAxis=cop_A495NotesDue2026Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_DebtInstrumentAxis=cop_A78DebenturesDue2027Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_DebtInstrumentAxis=cop_A375NotesDue2027Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_DebtInstrumentAxis=cop_A43NotesDue2028Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_DebtInstrumentAxis=cop_A7375DebenturesDue2029Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_DebtInstrumentAxis=cop_A7DebenturesDue2029Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_DebtInstrumentAxis=cop_A695NotesDue2029Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_DebtInstrumentAxis=cop_A8125NotesDue2030Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_DebtInstrumentAxis=cop_A74NotesDue2031Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_DebtInstrumentAxis=cop_A725NotesDue2031Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_DebtInstrumentAxis=cop_A72NotesDue2031Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_DebtInstrumentAxis=cop_A24NotesDue2031Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_DebtInstrumentAxis=cop_A59NotesDue2032Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_DebtInstrumentAxis=cop_A415NotesDue2034Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_DebtInstrumentAxis=cop_A595NotesDue2036Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_DebtInstrumentAxis=cop_A5951NotesDue2037Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_DebtInstrumentAxis=cop_A59NotesDue2038Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_DebtInstrumentAxis=cop_A65NotesDue2039Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_DebtInstrumentAxis=cop_A3758NoteDue2042Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_DebtInstrumentAxis=cop_A43NotesDue2044Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_DebtInstrumentAxis=cop_A595NotesDue2046Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_DebtInstrumentAxis=cop_A79DebenturesDue2047Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_DebtInstrumentAxis=cop_A4875NotesDue2047Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_DebtInstrumentAxis=cop_A485NotesDue2048TwoMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_DebtInstrumentAxis=cop_A38NoteDue2052Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_DebtInstrumentAxis=cop_A4025NoteDue2062Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_DebtInstrumentAxis=cop_FloatingRateNotesDue2022Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_LongtermDebtTypeAxis=cop_FloatingRateNotesMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_RangeAxis=srt_MinimumMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_RangeAxis=srt_MaximumMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_DebtInstrumentAxis=cop_MarineTerminalRevenueRefundingBondsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_LongtermDebtTypeAxis=cop_VariableRateDebtBondsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_DebtInstrumentAxis=cop_IndustrialDevelopmentBondsDue2035Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_DebtInstrumentAxis=cop_OtherDebtMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |