XML 111 R57.htm IDEA: XBRL DOCUMENT v3.24.0.1

RISK MANAGEMENT AND HEDGING ACTIVITIES USING DERIVATIVES - Notional Quantities For Derivative Instruments (Details) $ in Millions	12 Months Ended
	Dec. 31, 2023 USD ($) GWh MMBbls Bcf	Dec. 31, 2022 USD ($) GWh MMBbls Bcf
Derivatives designated as hedging instruments | Future | Natural gas (Bcf) | Fixed price | Sold/Receiver
Derivative [Line Items]
Derivative, Nonmonetary Notional Amount, Volume	16.0	39.3
Derivatives designated as hedging instruments | Future | Natural gas (Bcf) | Basis | Sold/Receiver
Derivative [Line Items]
Derivative, Nonmonetary Notional Amount, Volume	16.0	39.3
Derivatives designated as hedging instruments | Future | Power (GWs) | Fixed price | Sold/Receiver
Derivative [Line Items]
Derivative, Nonmonetary Notional Amount, Energy Measure | GWh	22.1	0
Derivatives designated as hedging instruments | Futures and Swaps | Natural Gas Liquids, Refined Products, And Crude Oil | Fixed price | Sold/Receiver
Derivative [Line Items]
Derivative, Nonmonetary Notional Amount, Volume | MMBbls	14.5	8.4
Derivatives designated as hedging instruments | Swap | Basis | Purchased/Payor
Derivative [Line Items]
Derivative, Notional Amount | $	$ 0.0	$ 400.0
Derivatives not designated as hedging instruments | Future | Natural gas (Bcf) | Fixed price | Sold/Receiver
Derivative [Line Items]
Derivative, Nonmonetary Notional Amount, Volume	0.7	0.1
Derivatives not designated as hedging instruments | Future | Natural gas (Bcf) | Basis | Sold/Receiver
Derivative [Line Items]
Derivative, Nonmonetary Notional Amount, Volume	0.7	0.1
Derivatives not designated as hedging instruments | Futures and Swaps | Natural Gas Liquids, Refined Products, And Crude Oil | Fixed price | Purchased/Payor
Derivative [Line Items]
Derivative, Nonmonetary Notional Amount, Volume | MMBbls	0.1	0.1
Derivatives not designated as hedging instruments | Futures and Swaps | Natural Gas Liquids, Refined Products, And Crude Oil | Basis | Sold/Receiver
Derivative [Line Items]
Derivative, Nonmonetary Notional Amount, Volume | MMBbls	0.1	0

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

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 815
-SubTopic 40
-Name Accounting Standards Codification
-Section 50
-Paragraph 5
-Subparagraph (f)
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147480237/815-40-50-5

+ Details

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

X

- Definition

Nominal energy measure used to calculate payments on a derivative instrument.

+ References

No definition available.

+ Details

Name:	us-gaap_DerivativeNonmonetaryNotionalAmountEnergyMeasure
Namespace Prefix:	us-gaap_
Data Type:	dtr-types:energyItemType
Balance Type:	na
Period Type:	duration

X

- Definition

Nominal volume used to calculate payments on a derivative instrument.

+ References

No definition available.

+ Details

Name:	us-gaap_DerivativeNonmonetaryNotionalAmountVolume
Namespace Prefix:	us-gaap_
Data Type:	dtr-types:volumeItemType
Balance Type:	na
Period Type:	duration

X

- Definition

Nominal or face amount used to calculate payment on derivative.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 815
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 1B
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147480434/815-10-50-1B

Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 815
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 1A
-Subparagraph (d)
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147480434/815-10-50-1A

+ Details

Name:	us-gaap_DerivativeNotionalAmount
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	na
Period Type:	instant

X

- Details

Name:	us-gaap_HedgingDesignationAxis=us-gaap_DesignatedAsHedgingInstrumentMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

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

X

- Details

Name:	oke_DerivativesByCommodityAxis=srt_NaturalGasReservesMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	oke_DerivativeInstrumentByMethodForSettingNotionalAmountAxis=oke_FixedPriceMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	oke_DerivativePositionByTransactionTypeAxis=oke_SellorMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	oke_DerivativeInstrumentByMethodForSettingNotionalAmountAxis=oke_BasisMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	oke_DerivativesByCommodityAxis=oke_PowerGWsMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

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

X

- Details

Name:	oke_DerivativesByCommodityAxis=oke_NaturalGasLiquidsRefinedProductsAndCrudeOilMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

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

X

- Details

Name:	oke_DerivativePositionByTransactionTypeAxis=oke_PurchasorMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_HedgingDesignationAxis=us-gaap_NondesignatedMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type: