Capital Lease Duration

No definition available.

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- Definition

Capital Lease Payment Duration

+ References

No definition available.

+ Details

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- Definition

Line Of Credit Facility Covenant, Maximum Consolidated Debt To Maximum Adjusted Earnings Before Interest, Taxes, Depreciation, Amortization And Exploration Expenses

+ References

No definition available.

+ Details

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Balance Type:	na
Period Type:	duration

- Definition

Line Of Credit Facility Covenant, Maximum Leverage Ratio

+ References

No definition available.

+ Details

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Namespace Prefix:	mur_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

- Definition

Line Of Credit Facility Covenant, Maximum Total Debt To Total Capital Employed

+ References

No definition available.

+ Details

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Namespace Prefix:	mur_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

- Definition

Line Of Credit Facility Covenant, Minimum Adjusted Earnings Before Interest, Taxes, Depreciation, Amortization And Exploration Expenses To Consolidated Interest Expense

+ References

No definition available.

+ Details

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Namespace Prefix:	mur_
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Balance Type:	na
Period Type:	duration

- Definition

Line Of Credit Facility Covenant, Minimum Liquidity

+ References

No definition available.

+ Details

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Namespace Prefix:	mur_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Definition

Line Of Credit Facility Covenant, Minumum Borrowing Capacity Through Automatic Reductions

+ References

No definition available.

+ Details

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Namespace Prefix:	mur_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Amount of capital lease obligation due within one year or the normal operating cycle, if longer.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 840
-SubTopic 30
-Section 50
-Paragraph 1
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=6455398&loc=d3e45280-112737

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02(19))
-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

Reference 3: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 840
-SubTopic 30
-Section 45
-Paragraph 2
-URI http://asc.fasb.org/extlink&oid=6455314&loc=d3e45023-112735

+ Details

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

- Definition

Amount equal to the present value (the principal) at the beginning of the lease term of minimum lease payments during the lease term (excluding that portion of the payments representing executory costs such as insurance, maintenance, and taxes to be paid by the lessor, together with any profit thereon) net of payments or other amounts applied to the principal, through the balance sheet date and due to be paid more than one year (or one operating cycle, if longer) after the balance sheet date.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 840
-SubTopic 30
-Section 50
-Paragraph 1
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=6455398&loc=d3e45280-112737

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-Publisher FASB
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-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

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Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Percentage points added to the reference rate to compute the variable rate on the debt instrument.

+ References

No definition available.

+ Details

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Namespace Prefix:	us-gaap_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

- Definition

Face (par) amount of debt instrument at time of issuance.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 835
-SubTopic 30
-Section 55
-Paragraph 8
-URI http://asc.fasb.org/extlink&oid=64930739&loc=d3e28878-108400

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+ Details

Name:	us-gaap_DebtInstrumentFaceAmount
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Contractual interest rate for funds borrowed, under the debt agreement.

+ References

+ Details

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Namespace Prefix:	us-gaap_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	instant

- Definition

Date when the debt instrument is scheduled to be fully repaid, in CCYY-MM-DD format.

+ References

+ Details

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:dateItemType
Balance Type:	na
Period Type:	duration

- Definition

Date which lease or group of leases is set to expire, in CCYY-MM-DD format.

+ References

No definition available.

+ Details

Name:	us-gaap_LeaseExpirationDate1
Namespace Prefix:	us-gaap_
Data Type:	xbrli:dateItemType
Balance Type:	na
Period Type:	duration

- 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://www.xbrl.org/2003/role/presentationRef
-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=6877327&loc=d3e13212-122682

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+ Details

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Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

The fee, expressed as a percentage of the line of credit facility, for the line of credit facility regardless of whether the facility has been used.

+ References

No definition available.

+ Details

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Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

- Definition

Date the credit facility terminates, in CCYY-MM-DD format.

+ References

+ Details

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- 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

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- Definition

Maximum borrowing capacity under the credit facility without consideration of any current restrictions on the amount that could be borrowed or the amounts currently outstanding under the facility.

+ References

+ Details

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Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

The cash outflow paid to third parties in connection with debt origination, which will be amortized over the remaining maturity period of the associated long-term debt.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 15
-Subparagraph (e)
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Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

- Details

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- Details

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- Details

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Financing Arrangements and Debt (Details) - USD ($)	1 Months Ended		9 Months Ended	30 Months Ended
Financing Arrangements and Debt (Details) - USD ($)	Sep. 30, 2016	Aug. 31, 2016	Sep. 30, 2016	Aug. 31, 2019
Line of Credit Facility [Line Items]
Issue cost of debt facility			$ 13,971,000
Capital lease duration			25 years
Capital lease payment duration			15 years
Capital lease expiration date			Sep. 01, 2028
Capital lease obligations, current	$ 20,400,000		$ 20,400,000
Capital lease obligations, noncurrent	202,700,000		$ 202,700,000
6.875% Notes Due August 15, 2024 [Member]
Line of Credit Facility [Line Items]
Face amount of notes		$ 550,000,000
Notes payable, stated interest rate		6.875%
Maturity date			Aug. 15, 2024
2011 Unscured Revolving Credit Facility [Member]
Line of Credit Facility [Line Items]
Credit facility maximum borrowing capacity	630,000,000	$ 2,000,000,000	$ 630,000,000
Credit facility, maturity date			Jun. 01, 2017
Amount outstanding	0		$ 0
Maximum total debt to total capital employed			60.00%
2016 Senior Unsecured Guaranteed Credity Facility [Member]
Line of Credit Facility [Line Items]
Credit facility maximum borrowing capacity	$ 1,200,000,000		$ 1,200,000,000
Credit facility, maturity date			Aug. 01, 2019
Line of credit facility fee	0.50%
Issue cost of debt facility		$ 14,000,000
Amount outstanding	$ 0		$ 0
Minumum borrowing capacity through automatic reductions	$ 1,000,000,000		1,000,000,000
Maximum leverage ratio				325.00%
Minimum adjusted EBITDAX to consolidated interest expense	250.00%
Maximum consolidated debt to maximum adjusted EBITDAX	375.00%
2016 Senior Unsecured Guaranteed Credity Facility [Member] \| United States And Canada [Member]
Line of Credit Facility [Line Items]
Minimum liquidity	$ 500,000,000		500,000,000
2016 Senior Unsecured Guaranteed Credity Facility [Member] \| Minimum [Member]
Line of Credit Facility [Line Items]
Credit facility interest rate above LIBOR	2.50%
2016 Senior Unsecured Guaranteed Credity Facility [Member] \| Maximum [Member]
Line of Credit Facility [Line Items]
Credit facility interest rate above LIBOR	4.50%
2016 Senior Unsecured Guaranteed Credity Facility [Member] \| Letter of Credit [Member]
Line of Credit Facility [Line Items]
Amount outstanding	$ 88,000,000		$ 88,000,000