XML 64 R49.htm IDEA: XBRL DOCUMENT
v3.19.1

Discontinued Operations and Assets Held for Sale (Narrative) (Details) - Discontinued Operations, Held-for-sale [Member] - Malaysia Subsidiaries [Member] $ in Millions | Mar. 21, 2019 USD ($) entity
--- | ---
Income Statement Balance Sheet And Additional Disclosures By Disposal Groups Including Discontinued Operations [Line Items] |
Number of businesses divested | entity | 2
Consideration | $ 2,127
Contingent consideration | $ 100

X
- Definition Disposal Group Including Discontinued Operation, Contingent Consideration Amount + References No definition available. + Details
Name: | mur_DisposalGroupIncludingDiscontinuedOperationContingentConsiderationAmount
Namespace Prefix: | mur_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Number Of Business Divested + References No definition available. + Details
Name: | mur_NumberOfBusinessDivested
Namespace Prefix: | mur_
Data Type: | xbrli:integerItemType
Balance Type: | na
Period Type: | duration

X
- Definition Amount of consideration received or receivable for the disposal of assets and liabilities, including discontinued operation. + References No definition available. + Details
Name: | us-gaap_DisposalGroupIncludingDiscontinuedOperationConsideration
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_IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperationsLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Details
Name: | us-gaap_DisposalGroupClassificationAxis=us-gaap_DiscontinuedOperationsHeldforsaleMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperationsAxis=mur_MalaysiaSubsidiariesMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |