Outstanding Insurance Receivable

No definition available.

Name:	oke_OutstandingInsuranceReceivable
Namespace Prefix:	oke_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- 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

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

- Definition

The net amount (to the extent disclosed within this portion of the income statement) by which an insurance settlement exceeds incremental costs incurred from the event causing an interruption of business, plus the insurance award for earnings lost from the event, such as a natural catastrophe, explosion or fire.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Topic 220
-SubTopic 30
-Name Accounting Standards Codification
-Section 50
-Paragraph 1
-Subparagraph (b)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147483605/220-30-50-1

+ Details

Name:	us-gaap_GainOnBusinessInterruptionInsuranceRecovery
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

- Definition

Amount of insurance proceeds for an event or transaction that is unusual in nature or infrequent in occurrence, or both.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Topic 220
-SubTopic 20
-Name Accounting Standards Codification
-Section 50
-Paragraph 1
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147483613/220-20-50-1

+ Details

Name:	us-gaap_UnusualOrInfrequentItemInsuranceProceeds
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

- Details

Name:	oke_NaturalGasLiquidsAxis=oke_MedfordIncidentMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	oke_MedfordIncidentAxis=oke_InsuranceRecoveriesMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	oke_MedfordIncidentAxis=oke_InsuranceRecoveriesIn2022Member
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	oke_MedfordIncidentAxis=oke_BusinessInterruptionSettlementProceedsReceivedIn2023Member
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	oke_MedfordIncidentAxis=oke_BusinessInterruptionSettlementProceedsMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

MEDFORD INCIDENT (Details) - USD ($) $ in Millions	3 Months Ended	12 Months Ended
MEDFORD INCIDENT (Details) - USD ($) $ in Millions	Mar. 31, 2023	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Business Interruption Loss [Line Items]
Medford settlement gain (Note C)		$ 0	$ 779	$ 0
Medford Incident \| Insurance Recoveries
Business Interruption Loss [Line Items]
Unusual item, insurance proceeds				930
Medford Incident \| Insurance Recoveries in 2022
Business Interruption Loss [Line Items]
Unusual item, insurance proceeds				100
Medford Incident \| Business Interruption - Settlement Proceeds Received in 2023
Business Interruption Loss [Line Items]
Unusual item, insurance proceeds	$ 830
Medford Incident \| Business Interruption - Settlement Proceeds
Business Interruption Loss [Line Items]
Outstanding insurance receivable				$ 51
Medford settlement gain (Note C)	$ 779	$ 779	$ 779