Percentage of estimated proved developed reserves classified as proved not producing.

No definition available.

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Namespace Prefix:	apa_
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- Definition

Energy measure of increase in quantity of proved reserve of oil and gas resulting from the extension of the proved acreage of previously discovered reservoir or discovery of new field with proved reserve or of new reservoir of proved reserve in old field, stated in a unit of energy. For example, but not limited to, barrel of oil equivalents (BOE) or one thousand cubic feet of natural gas equivalent (Mcfe).

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher SEC
-Name Form 20-F
-Section Item 18
-Subsection Instruction 2

Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 932
-SubTopic 235
-Section 50
-Paragraph 5
-Subparagraph (d)
-URI http://asc.fasb.org/extlink&oid=68064819&loc=d3e61831-109447

+ Details

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- Definition

Energy measure of increase in quantity of proved reserve of oil and gas resulting from purchase of mineral in place, stated in a unit of energy. For example, but not limited to, barrel of oil equivalents (BOE) or one thousand cubic feet of natural gas equivalent (Mcfe).

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher SEC
-Name Form 20-F
-Section Item 18
-Subsection Instruction 2

Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 932
-SubTopic 235
-Section 50
-Paragraph 5
-Subparagraph (c)
-URI http://asc.fasb.org/extlink&oid=68064819&loc=d3e61831-109447

+ Details

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- Definition

Energy measure of increase (decrease) in quantity of proved reserve of oil and gas related to revision of a previous estimate resulting from new information, except for an increase in proved acreage, or change in economic factors, stated in a unit of energy. For example, but not limited to, barrel of oil equivalents (BOE) or one thousand cubic feet of natural gas equivalent (Mcfe).

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher SEC
-Name Form 20-F
-Section Item 18
-Subsection Instruction 2

Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 932
-SubTopic 235
-Section 50
-Paragraph 5
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=68064819&loc=d3e61831-109447

+ Details

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Namespace Prefix:	srt_
Data Type:	num:energyItemType
Balance Type:	na
Period Type:	duration

- Definition

Energy measure of decrease in quantity of proved reserve of oil and gas resulting from sale of mineral in place, stated in a unit of energy. For example, but not limited to, barrel of oil equivalents (BOE) or one thousand cubic feet of natural gas equivalent (Mcfe).

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher SEC
-Name Form 20-F
-Section Item 18
-Subsection Instruction 2

Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 932
-SubTopic 235
-Section 50
-Paragraph 5
-Subparagraph (f)
-URI http://asc.fasb.org/extlink&oid=68064819&loc=d3e61831-109447

+ Details

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Data Type:	num:energyItemType
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Period Type:	duration

- 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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- Details

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SUPPLEMENTAL OIL AND GAS DISCLOSURES (Unaudited) - Additional Information (Details) - MBoe	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Reserve Quantities [Line Items]
Addition from extensions, discoveries, and other additions	176,000	303,000	230,000
Revision of previous estimate	119,000	(73,000)	10,000
Sale of mineral in place			212,000
Purchase of mineral in place			2,000
Percentage of estimated proved developed reserves classified as proved not producing	10.00%
North America
Reserve Quantities [Line Items]
Addition from extensions, discoveries, and other additions	135,000	240,000	169,000
Premian Basin
Reserve Quantities [Line Items]
Addition from extensions, discoveries, and other additions	129,000	217,000	128,000
MidContinent Region
Reserve Quantities [Line Items]
Addition from extensions, discoveries, and other additions	6,000	20	17,000
International Regions
Reserve Quantities [Line Items]
Addition from extensions, discoveries, and other additions	41,000	62	61,000
Egypt
Reserve Quantities [Line Items]
Addition from extensions, discoveries, and other additions	27,000	36	41,000
North Sea
Reserve Quantities [Line Items]
Addition from extensions, discoveries, and other additions	14,000	26	20,000
Anadarko Basin
Reserve Quantities [Line Items]
Sale of mineral in place	107,000
Canada
Reserve Quantities [Line Items]
Addition from extensions, discoveries, and other additions			24,000
Changes in Product Prices
Reserve Quantities [Line Items]
Revision of previous estimate	139,000	(24)	(32,000)
Interest Revisions
Reserve Quantities [Line Items]
Revision of previous estimate		(5)
Changes in Engineering and Performance
Reserve Quantities [Line Items]
Revision of previous estimate	20,000	(44)	(22,000)