Name:	dei_DocumentFiscalYearFocus
Namespace Prefix:	dei_
Data Type:	xbrli:gYearItemType
Balance Type:	na
Period Type:	duration

Aggregate notional amount of derivative expressed in nonmonetary units. For example, the number of barrels specified in a fuel oil forward purchase contract.

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher SEC
-Name Regulation S-X (SX)
-Number 210
-Article 12
-Section 13
-Sentence Column B

Name:	invest_DerivativeNonmonetaryNotionalAmount
Namespace Prefix:	invest_
Data Type:	xbrli:decimalItemType
Balance Type:	na
Period Type:	instant

Derivative, Swap Type, Price Differential

No definition available.

Name:	pxd_DerivativeSwapTypePriceDifferential
Namespace Prefix:	pxd_
Data Type:	us-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:	us-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

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_SwapContractsForThirdQuarterofYearOneMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

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

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

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

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

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