XML 55 R42.htm IDEA: XBRL DOCUMENT v3.24.3

RISK-MANAGEMENT AND HEDGING ACTIVITIES USING DERIVATIVES -Schedule of Notional Quantities for Derivative Instruments (Details) - Futures and swaps	9 Months Ended	12 Months Ended
	Sep. 30, 2024 GWh Bcf MMBbls	Dec. 31, 2023 GWh MMBbls Bcf
Derivatives designated as hedging instruments | - Natural gas (Bcf) | Fixed price | Sold / Receiver
Derivative [Line Items]
Derivative, nonmonetary notional amount, volume | Bcf	24.4	16.0
Derivatives designated as hedging instruments | - Natural gas (Bcf) | Basis | Sold / Receiver
Derivative [Line Items]
Derivative, nonmonetary notional amount, volume | Bcf	24.4	16.0
Derivatives designated as hedging instruments | - NGLs, Refined Products and crude oil (MMBbl) | Fixed price | Sold / Receiver
Derivative [Line Items]
Derivative, nonmonetary notional amount, volume | MMBbls	10.2	14.5
Derivatives designated as hedging instruments | - Power (GWh) | Fixed price | Net Purchased / Payor
Derivative [Line Items]
Derivative, nonmonetary notional amount, energy measure | GWh	0	22,100,000
Derivatives not designated as hedging instruments | - Natural gas (Bcf) | Fixed price | Sold / Receiver
Derivative [Line Items]
Derivative, nonmonetary notional amount, volume | Bcf	0	0.7
Derivatives not designated as hedging instruments | - Natural gas (Bcf) | Basis | Sold / Receiver
Derivative [Line Items]
Derivative, nonmonetary notional amount, volume | Bcf	0	0.7
Derivatives not designated as hedging instruments | - NGLs, Refined Products and crude oil (MMBbl) | Fixed price | Sold / Receiver
Derivative [Line Items]
Derivative, nonmonetary notional amount, volume | MMBbls	0.4
Derivatives not designated as hedging instruments | - NGLs, Refined Products and crude oil (MMBbl) | Fixed price | Net Purchased / Payor
Derivative [Line Items]
Derivative, nonmonetary notional amount, volume | MMBbls		0.1
Derivatives not designated as hedging instruments | - NGLs, Refined Products and crude oil (MMBbl) | Basis | Sold / Receiver
Derivative [Line Items]
Derivative, nonmonetary notional amount, volume | MMBbls	0	0.1

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

- Details

Name:	us-gaap_HedgingDesignationAxis=us-gaap_DesignatedAsHedgingInstrumentMember
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=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_DerivativePositonByTransactionTypeAxis=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=srt_CrudeOilAndNGLPerBarrelMember
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:	oke_DerivativePositonByTransactionTypeAxis=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: