Name:	pxd_DerivativeNotionalAmountPricePerUnit
Namespace Prefix:	pxd_
Data Type:	srt-types:perUnitItemType
Balance Type:	na
Period Type:	instant

Derivative, Swap Type, Price Differential

No definition available.

Name:	pxd_DerivativeSwapTypePriceDifferential
Namespace Prefix:	pxd_
Data Type:	srt-types:perUnitItemType
Balance Type:	na
Period Type:	instant

Disposal Group, Contingent Consideration Period

No definition available.

Name:	pxd_DisposalGroupContingentConsiderationPeriod
Namespace Prefix:	pxd_
Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	duration

Disposal Group, Including Discontinued Operation, Contingent Consideration

No definition available.

Name:	pxd_DisposalGroupIncludingDiscontinuedOperationContingentConsideration
Namespace Prefix:	pxd_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

The average cap rate on a group of price risk derivatives such as caps or collars. A payment or receipt is triggered if the market rate exceeds the cap rate on the contract.

No definition available.

Name:	us-gaap_DerivativeAverageCapPrice
Namespace Prefix:	us-gaap_
Data Type:	srt-types:perUnitItemType
Balance Type:	na
Period Type:	instant

The average forward price on the group of price risk forward or futures contracts, such as gas futures contracts.

No definition available.

Name:	us-gaap_DerivativeAverageForwardPrice
Namespace Prefix:	us-gaap_
Data Type:	srt-types:perUnitItemType
Balance Type:	na
Period Type:	instant

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.

No definition available.

Name:	us-gaap_DerivativeLineItems
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

Nominal number of units used to calculate payment on derivative.

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 815
-SubTopic 10
-Section 50
-Paragraph 1B
-URI http://asc.fasb.org/extlink&oid=121590274&loc=SL5580258-113959

Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 815
-SubTopic 10
-Section 50
-Paragraph 1A
-Subparagraph (d)
-URI http://asc.fasb.org/extlink&oid=121590274&loc=SL5579245-113959

Name:	us-gaap_DerivativeNonmonetaryNotionalAmount
Namespace Prefix:	us-gaap_
Data Type:	xbrli:decimalItemType
Balance Type:	na
Period Type:	instant

Name:	us-gaap_IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperationsAxis=pxd_EagleFordandOtherSouthTexasAssetsMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

Name:	us-gaap_TradingActivityByTypeAxis=pxd_SwapContractsForFourthQuarterofYearOneMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

Name:	us-gaap_DerivativeInstrumentRiskAxis=pxd_GasContractsInMmbtuMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

Name:	us-gaap_DerivativeInstrumentRiskAxis=pxd_GasContractsPricePerMmbtuMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

Name:	us-gaap_TradingActivityByTypeAxis=pxd_SwapContractsForYearTwoMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

Name:	us-gaap_TradingActivityByTypeAxis=pxd_BasisSwapContractsforFourthQuarterofYearOneMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

Name:	pxd_AssetAreaAxis=pxd_PermianBasinMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

Name:	us-gaap_TradingActivityByTypeAxis=pxd_BasisSwapContractsForYearTwoMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

Name:	us-gaap_TradingActivityByTypeAxis=pxd_PermianCollarContractsForTheFourthQuarterOfYearOneMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type: