XML 78 R54.htm IDEA: XBRL DOCUMENT
v3.20.4

Debt (Details) - USD ($) | 12 Months Ended
--- | ---
Dec. 31, 2020 | Dec. 31, 2019 | Dec. 31, 2018
Debt Disclosure [Abstract] |  |  |
Gain (Loss) on Extinguishment of Debt | $ (168,000,000) | $ 0 | $ 0
Long-term debt | 9,132,000,000 | 10,316,000,000 |
Debt Instrument [Line Items] |  |  |
Long-term Debt and Lease Obligation, Including Current Maturities | 9,827,000,000 | 10,327,000,000 |
Short-term borrowings and current maturities of long-term debt | 695,000,000 | 11,000,000 |
Debt Instrument, Unamortized Discount | $ (82,000,000) | (90,000,000) |
Debt instrument call feature description | We may redeem all of our senior notes from time to time or all of the notes of each series at any time at the applicable redemption prices, plus accrued and unpaid interest. |  |
Long-term Line of Credit | $ 3,500,000,000 |  |
Line of Credit Facility, Remaining Borrowing Capacity | 3,500,000,000 |  |
Long-term Debt, Current Maturities | 695,000,000 | 11,000,000 |
Long-term Debt, Maturities, Repayments of Principal in Year Two | 9,000,000 |  |
Long-term Debt, Maturities, Repayments of Principal in Year Three | 602,000,000 |  |
Long-term Debt, Maturities, Repayments of Principal in Year Four | 0 |  |
Long-term Debt, Maturities Repayments of Principal in Year Five | 1,000,000,000.0 |  |
Long-term debt | 9,132,000,000 | 10,316,000,000 |
Gain (Loss) on Extinguishment of Debt | (168,000,000) | 0 | $ 0
Senior notes due November 2045 |  |  |
Debt Disclosure [Abstract] |  |  |
Long-term debt | $ 2,000,000,000 | $ 2,000,000,000 |
Debt Instrument [Line Items] |  |  |
Interest rate (in hundredths) | 5.00% | 5.00% |
Maturity date | November 2045 | November 2045 |
Long-term debt | $ 2,000,000,000 | $ 2,000,000,000 |
Senior Notes due November 2025 |  |  |
Debt Disclosure [Abstract] |  |  |
Long-term debt | $ 1,000,000,000 | $ 2,000,000,000 |
Debt Instrument [Line Items] |  |  |
Interest rate (in hundredths) | 3.80% | 3.80% |
Maturity date | November 2025 | November 2025 |
Long-term debt | $ 1,000,000,000 | $ 2,000,000,000 |
Senior notes due August 2023 |  |  |
Debt Disclosure [Abstract] |  |  |
Long-term debt | $ 600,000,000 | $ 1,100,000,000 |
Debt Instrument [Line Items] |  |  |
Interest rate (in hundredths) | 3.50% | 3.50% |
Maturity date | August 2023 | August 2023 |
Long-term debt | $ 600,000,000 | $ 1,100,000,000 |
Senior Notes due November 2035 |  |  |
Debt Disclosure [Abstract] |  |  |
Long-term debt | $ 1,000,000,000 | $ 1,000,000,000 |
Debt Instrument [Line Items] |  |  |
Interest rate (in hundredths) | 4.85% | 4.85% |
Maturity date | November 2035 | November 2035 |
Long-term debt | $ 1,000,000,000 | $ 1,000,000,000 |
Senior notes due September 2039 |  |  |
Debt Disclosure [Abstract] |  |  |
Long-term debt | $ 1,000,000,000 | $ 1,000,000,000 |
Debt Instrument [Line Items] |  |  |
Interest rate (in hundredths) | 7.45% | 7.45% |
Maturity date | September 2039 | September 2039 |
Long-term debt | $ 1,000,000,000 | $ 1,000,000,000 |
Senior notes due August 2043 |  |  |
Debt Disclosure [Abstract] |  |  |
Long-term debt | $ 900,000,000 | $ 900,000,000 |
Debt Instrument [Line Items] |  |  |
Interest rate (in hundredths) | 4.75% | 4.75% |
Maturity date | August 2043 | August 2043 |
Long-term debt | $ 900,000,000 | $ 900,000,000 |
Senior notes due September 2038 |  |  |
Debt Disclosure [Abstract] |  |  |
Long-term debt | $ 800,000,000 | $ 800,000,000 |
Debt Instrument [Line Items] |  |  |
Interest rate (in hundredths) | 6.70% | 6.70% |
Maturity date | September 2038 | September 2038 |
Long-term debt | $ 800,000,000 | $ 800,000,000 |
Senior notes due November 2021 |  |  |
Debt Disclosure [Abstract] |  |  |
Long-term debt | $ 500,000,000 | $ 500,000,000 |
Debt Instrument [Line Items] |  |  |
Interest rate (in hundredths) | 3.25% | 3.25% |
Maturity date | November 2021 | November 2021 |
Long-term debt | $ 500,000,000 | $ 500,000,000 |
Senior notes due November 2041 |  |  |
Debt Disclosure [Abstract] |  |  |
Long-term debt | $ 500,000,000 | $ 500,000,000 |
Debt Instrument [Line Items] |  |  |
Interest rate (in hundredths) | 4.50% | 4.50% |
Maturity date | November 2041 | November 2041 |
Long-term debt | $ 500,000,000 | $ 500,000,000 |
Senior debentures due August 2096 |  |  |
Debt Disclosure [Abstract] |  |  |
Long-term debt | $ 300,000,000 | $ 300,000,000 |
Debt Instrument [Line Items] |  |  |
Interest rate (in hundredths) | 7.60% | 7.60% |
Debt instruments non-call feature description | may not be redeemed prior to maturity |  |
Maturity date | August 2096 | August 2096 |
Long-term debt | $ 300,000,000 | $ 300,000,000 |
Senior debentures due February 2021 |  |  |
Debt Disclosure [Abstract] |  |  |
Long-term debt | $ 185,000,000 | $ 185,000,000 |
Debt Instrument [Line Items] |  |  |
Interest rate (in hundredths) | 8.75% | 8.75% |
Debt instruments non-call feature description | may not be redeemed prior to maturity |  |
Maturity date | February 2021 | February 2021 |
Long-term debt | $ 185,000,000 | $ 185,000,000 |
Senior notes due February 2027 |  |  |
Debt Disclosure [Abstract] |  |  |
Long-term debt | $ 104,000,000 | $ 104,000,000 |
Debt Instrument [Line Items] |  |  |
Interest rate (in hundredths) | 6.75% | 6.75% |
Debt instruments non-call feature description | may not be redeemed prior to maturity |  |
Maturity date | February 2027 | February 2027 |
Long-term debt | $ 104,000,000 | $ 104,000,000 |
Other Debt Obligations |  |  |
Debt Disclosure [Abstract] |  |  |
Long-term debt | 20,000,000 | 28,000,000 |
Debt Instrument [Line Items] |  |  |
Long-term debt | 20,000,000 | 28,000,000 |
Senior notes due March 2030 |  |  |
Debt Disclosure [Abstract] |  |  |
Long-term debt | $ 1,000,000,000 | 0 |
Debt Instrument [Line Items] |  |  |
Interest rate (in hundredths) | 2.92% |  |
Long-term debt | $ 1,000,000,000 | $ 0 |
Tender Offer on Senior notes due August 2023 and November 2025 [Member] |  |  |
Debt Disclosure [Abstract] |  |  |
Long-term debt | 1,500,000,000 |  |
Debt Instrument [Line Items] |  |  |
Long-term debt | 1,500,000,000 |  |
Tender Offer on Senior note due August 2023 [Member] |  |  |
Debt Disclosure [Abstract] |  |  |
Long-term debt | 500,000,000 |  |
Debt Instrument [Line Items] |  |  |
Long-term debt | 500,000,000 |  |
Tender Offer on Senior note due November 2025 [Member] |  |  |
Debt Disclosure [Abstract] |  |  |
Long-term debt | 1,000,000,000.0 |  |
Debt Instrument [Line Items] |  |  |
Long-term debt | $ 1,000,000,000.0 |  |

X
- Definition Date when the debt instrument is scheduled to be fully repaid, which may be presented in a variety of ways (year, month and year, day, month and year, quarter, etc.). + References No definition available. + Details
Name: | hal_DebtInstrumentMaturityDateMonthAndYear
Namespace Prefix: | hal_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Debt instruments which may not be redeemed prior to maturity. + References No definition available. + Details
Name: | hal_DebtInstrumentsWithoutCallFeatureDescription
Namespace Prefix: | hal_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

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
- References No definition available. + Details
Name: | us-gaap_DebtDisclosureAbstract
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Description of a feature that permits the issuer of the debt to repay or convert it before the stated maturity date (early retirement date). The description may include such items as the call price, the period that the issuer can call the debt, including the earliest call date, and other significant terms of the call feature, which may include the debt holders' ability to convert the debt to equity if the call option is exercised and contingent events that trigger the issuer's ability to call the debt. + 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(a)(5)) -URI http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 470 -Section 50 -Paragraph 3 -Subparagraph (e) -URI http://asc.fasb.org/extlink&oid=75038535&loc=d3e64711-112823 + Details
Name: | us-gaap_DebtInstrumentCallFeature
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Contractual interest rate for funds borrowed, under the debt agreement. + 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(a)(1)) -URI http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682 + Details
Name: | us-gaap_DebtInstrumentInterestRateStatedPercentage
Namespace Prefix: | us-gaap_
Data Type: | num: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. + References Reference 1: 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=119993939&loc=d3e28541-108399 Reference 2: 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_DebtInstrumentUnamortizedDiscount
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Difference between the fair value of payments made and the carrying amount of debt which is extinguished prior to maturity. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 470 -SubTopic 50 -Section 40 -Paragraph 4 -URI http://asc.fasb.org/extlink&oid=117329964&loc=d3e12355-112629 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 470 -SubTopic 50 -Section 40 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=117329964&loc=d3e12317-112629 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 28 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=121586364&loc=d3e3602-108585 + Details
Name: | us-gaap_GainsLossesOnExtinguishmentOfDebt
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- 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. + 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 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-03(16)) -URI http://asc.fasb.org/extlink&oid=120398452&loc=d3e534808-122878 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.7-03(16)) -URI http://asc.fasb.org/extlink&oid=120400017&loc=d3e572229-122910 + Details
Name: | us-gaap_LineOfCredit
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Amount of borrowing capacity currently available under the credit facility (current borrowing capacity less the amount of borrowings outstanding). + 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(b),22(b)) -URI http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682 + Details
Name: | us-gaap_LineOfCreditFacilityRemainingBorrowingCapacity
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
- 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 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_LongTermDebtCurrent
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Amount of long-term debt payable, sinking fund requirement, and other securities issued that are redeemable by holder at fixed or determinable price and date, maturing in fifth fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach). + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 235 -SubTopic 10 -Section S99 -Paragraph 3 -Subparagraph (SX 210.12-04.(a)) -URI http://asc.fasb.org/extlink&oid=120395691&loc=d3e24072-122690 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 470 -SubTopic 10 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6802200&loc=d3e1835-112601 + Details
Name: | us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalInYearFive
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Amount of long-term debt payable, sinking fund requirement, and other securities issued that are redeemable by holder at fixed or determinable price and date, maturing in fourth fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach). + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 235 -SubTopic 10 -Section S99 -Paragraph 3 -Subparagraph (SX 210.12-04.(a)) -URI http://asc.fasb.org/extlink&oid=120395691&loc=d3e24072-122690 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 470 -SubTopic 10 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6802200&loc=d3e1835-112601 + Details
Name: | us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalInYearFour
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Amount of long-term debt payable, sinking fund requirement, and other securities issued that are redeemable by holder at fixed or determinable price and date, maturing in third fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach). + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 235 -SubTopic 10 -Section S99 -Paragraph 3 -Subparagraph (SX 210.12-04.(a)) -URI http://asc.fasb.org/extlink&oid=120395691&loc=d3e24072-122690 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 470 -SubTopic 10 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6802200&loc=d3e1835-112601 + Details
Name: | us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalInYearThree
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Amount of long-term debt payable, sinking fund requirement, and other securities issued that are redeemable by holder at fixed or determinable price and date, maturing in second fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach). + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 235 -SubTopic 10 -Section S99 -Paragraph 3 -Subparagraph (SX 210.12-04.(a)) -URI http://asc.fasb.org/extlink&oid=120395691&loc=d3e24072-122690 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 470 -SubTopic 10 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6802200&loc=d3e1835-112601 + Details
Name: | us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalInYearTwo
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

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

X
- Details
Name: | us-gaap_DebtInstrumentAxis=hal_SeniornotesdueNovember2045Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_DebtInstrumentAxis=hal_SeniorNotesdueNovember2025Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_DebtInstrumentAxis=hal_SeniornotesdueAugust2023Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_DebtInstrumentAxis=hal_SeniorNotesdueNovember2035Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_DebtInstrumentAxis=hal_SeniornotesdueSeptember2039Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_DebtInstrumentAxis=hal_SeniorNotesDueAugust2043Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_DebtInstrumentAxis=hal_SeniorNotesDue2038Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_DebtInstrumentAxis=hal_SeniornotesdueNovember2021Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_DebtInstrumentAxis=hal_SeniornotesdueNovember2041Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_DebtInstrumentAxis=hal_SeniornotesdueAugust2096Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_DebtInstrumentAxis=hal_SeniornotesdueFebruary2021Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_DebtInstrumentAxis=hal_SeniornotesdueFebruary2027MemberDomain
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

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

X
- Details
Name: | us-gaap_DebtInstrumentAxis=hal_SeniorNotesDueMarch2030Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_DebtInstrumentAxis=hal_TenderOfferOnSeniorNotesDueAugust2023AndNovember2025Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_DebtInstrumentAxis=hal_TenderOfferOnSeniorNoteDueAugust2023Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_DebtInstrumentAxis=hal_TenderOfferOnSeniorNoteDueNovember2025Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |