XML 69 R56.htm IDEA: XBRL DOCUMENT
v3.22.2.2

Derivative and Financial Instruments - Schedule of Net Carrying Amount of Held to Maturity Investments (Details) - USD ($) $ in Millions | Sep. 30, 2022 | Dec. 31, 2021
--- | --- | ---
Schedule of Held-to-maturity Securities [Line Items] |  |
Cash and cash equivalents, carried at cost plus accrued interest | $ 7,943 | $ 5,018
Short-term investments, carried at cost plus accrued interest | 1,762 | 225
Cash |  |
Schedule of Held-to-maturity Securities [Line Items] |  |
Cash and cash equivalents, carried at cost plus accrued interest | 664 | 670
Demand Deposits |  |
Schedule of Held-to-maturity Securities [Line Items] |  |
Cash and cash equivalents, carried at cost plus accrued interest | 1,413 | 1,554
Time Deposits | 1 to 90 days |  |
Schedule of Held-to-maturity Securities [Line Items] |  |
Cash and cash equivalents, carried at cost plus accrued interest | 5,843 | 2,363
Short-term investments, carried at cost plus accrued interest | 1,591 | 217
Time Deposits | 91 to 180 days |  |
Schedule of Held-to-maturity Securities [Line Items] |  |
Short-term investments, carried at cost plus accrued interest | 137 | 4
Time Deposits | Within one year |  |
Schedule of Held-to-maturity Securities [Line Items] |  |
Short-term investments, carried at cost plus accrued interest | 34 | 4
U.S. Government Obligations | 1 to 90 days |  |
Schedule of Held-to-maturity Securities [Line Items] |  |
Cash and cash equivalents, carried at cost plus accrued interest | 23 | 431
Short-term investments, carried at cost plus accrued interest | $ 0 | $ 0

X
- Definition Amount of investment in debt security, classified as cash and cash equivalents, measured at cost plus accrued interest, excluding those carried at fair value. + References No definition available. + Details
Name: | cop_CashAndCashEquivalentsCarriedAtCostPlusAccruedInterest
Namespace Prefix: | cop_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition The amount of short-term investments carried at cost plust accrued interest. + References No definition available. + Details
Name: | cop_ShortTermInvestmentsCarriedAtCostPlustAccruedInterest
Namespace Prefix: | cop_
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_ScheduleOfHeldToMaturitySecuritiesLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Details
Name: | us-gaap_CashAndCashEquivalentsAxis=us-gaap_CashMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_CashAndCashEquivalentsAxis=us-gaap_DemandDepositsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_CashAndCashEquivalentsAxis=us-gaap_BankTimeDepositsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_DerivativeInstrumentRiskAxis=cop_RemainingMaturities1To90DaysMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_DerivativeInstrumentRiskAxis=cop_RemainingMaturities91To180DaysMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

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

X
- Details
Name: | us-gaap_CashAndCashEquivalentsAxis=us-gaap_USGovernmentDebtSecuritiesMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |