EBP, Cost Charged To Participant Per Common Stock Purchased

No definition available.

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- Definition

EBP, Employer Contribution, Annual Fixed Rate Contribution, Profit Sharing, Amount

+ References

No definition available.

+ Details

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Namespace Prefix:	oke_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

- Definition

EBP, Employer Contribution, Participant Compensation Matched, True-Up, Percentage

+ References

No definition available.

+ Details

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Balance Type:	na
Period Type:	duration

- Definition

Fixed rate annual contribution for eligible participant in employee stock purchase, saving, or similar plan (employee benefit plan (EBP)).

+ References

No definition available.

+ Details

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Namespace Prefix:	oke_
Data Type:	dtr-types:percentItemType
Balance Type:	na
Period Type:	duration

- Definition

EBP, Investment Per Option, Increment Requirement

+ References

No definition available.

+ Details

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Namespace Prefix:	oke_
Data Type:	dtr-types:percentItemType
Balance Type:	na
Period Type:	duration

- Definition

EBP, Involuntary Cash-out Limit

+ References

No definition available.

+ Details

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Namespace Prefix:	oke_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

- Definition

EBP, Minimum Investment Per Option, Percent

+ References

No definition available.

+ Details

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Namespace Prefix:	oke_
Data Type:	dtr-types:percentItemType
Balance Type:	na
Period Type:	duration

- Definition

EBP, Note Receivable From Participant, Account, Primary Residence, Maximum Borrowing Term

+ References

No definition available.

+ Details

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Namespace Prefix:	oke_
Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	duration

- Definition

EBP, Note Receivable From Participant, General Loan, Maximum Borrowing Term

+ References

No definition available.

+ Details

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Namespace Prefix:	oke_
Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	duration

- Definition

EBP, Note Receivable from Participant, Grandfathered Withdrawal Option, Suspension Term

+ References

No definition available.

+ Details

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Namespace Prefix:	oke_
Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	duration

- Definition

EBP, Note Receivable from Participant, Maximum Annual Withdrawals

+ References

No definition available.

+ Details

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Namespace Prefix:	oke_
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	duration

- Definition

EBP, Note Receivable from Participant, Maximum Number Of Loans

+ References

No definition available.

+ Details

Name:	oke_EBPNoteReceivableFromParticipantMaximumNumberOfLoans
Namespace Prefix:	oke_
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	duration

- Definition

EBP, Participant Contribution, After Tax, Maximum Annual Compensation to Total Compensation, Percentage

+ References

No definition available.

+ Details

Name:	oke_EBPParticipantContributionAfterTaxMaximumAnnualCompensationToTotalCompensationPercentage
Namespace Prefix:	oke_
Data Type:	dtr-types:percentItemType
Balance Type:	na
Period Type:	duration

- Definition

Annual increase in percentage of eligible compensation contributed for participant automatically enrolled in employee stock purchase, saving, or similar plan (employee benefit plan (EBP)) until the contribution reaches maximum threshold.

+ References

No definition available.

+ Details

Name:	oke_EBPParticipantContributionAutomaticAnnualIncreaseDeferralRate
Namespace Prefix:	oke_
Data Type:	dtr-types:percentItemType
Balance Type:	na
Period Type:	duration

- Definition

EBP, Plan Modification Request, Maximum Period After Effective Date

+ References

No definition available.

+ Details

Name:	oke_EBPPlanModificationRequestMaximumPeriodAfterEffectiveDate
Namespace Prefix:	oke_
Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	duration

- Definition

EBP, Profit Sharing, Requisite Service Period

+ References

No definition available.

+ Details

Name:	oke_EBPProfitSharingRequisiteServicePeriod
Namespace Prefix:	oke_
Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	duration

- Definition

EBP, Purchase Of Common Stock, Period Start After Quarterly Or Annual Release

+ References

No definition available.

+ Details

Name:	oke_EBPPurchaseOfCommonStockPeriodStartAfterQuarterlyOrAnnualRelease
Namespace Prefix:	oke_
Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	duration

- Definition

EBP, Requisite Service Period

+ References

No definition available.

+ Details

Name:	oke_EBPRequisiteServicePeriod
Namespace Prefix:	oke_
Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	duration

- Definition

EBP, Retirement Age

+ References

No definition available.

+ Details

Name:	oke_EBPRetirementAge
Namespace Prefix:	oke_
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	duration

- Definition

EBP, Voluntary Cash-Out, Rollover Or Transfer, Minimum

+ References

No definition available.

+ Details

Name:	oke_EBPVoluntaryCashOutRolloverOrTransferMinimum
Namespace Prefix:	oke_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

- 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/2009/role/commonPracticeRef
-Topic 962
-SubTopic 205
-Name Accounting Standards Codification
-Section 50
-Paragraph 1
-Subparagraph (a)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147478416/962-205-50-1

+ Details

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Balance Type:	na
Period Type:	duration

- Definition

Percentage of participant compensation eligible for employer matching contribution for participant in employee stock purchase, saving, or similar plan (employee benefit plan (EBP)).

+ References

Reference 1: http://www.xbrl.org/2003/role/exampleRef
-Topic 962
-SubTopic 325
-Name Accounting Standards Codification
-Section 55
-Paragraph 17
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147478873/962-325-55-17

+ Details

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Data Type:	dtr-types:percentItemType
Balance Type:	na
Period Type:	duration

- Definition

Amount of maximum account balance that participant in employee stock purchase, saving, or similar plan (employee benefit plan (EBP)) can borrow.

+ References

+ Details

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Namespace Prefix:	us-gaap-ebp_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Definition

Percentage of maximum account balance that participant in employee stock purchase, saving, or similar plan (employee benefit plan (EBP)) can borrow to total participant account balance.

+ References

+ Details

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Data Type:	dtr-types:percentItemType
Balance Type:	na
Period Type:	instant

- Definition

Amount of minimum account balance that participant in employee stock purchase, saving, or similar plan (employee benefit plan (EBP)) can borrow.

+ References

+ Details

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Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Definition

Percentage of eligible compensation contributed for participant automatically enrolled in employee stock purchase, saving, or similar plan (employee benefit plan (EBP)).

+ References

+ Details

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Namespace Prefix:	us-gaap-ebp_
Data Type:	dtr-types:percentItemType
Balance Type:	na
Period Type:	duration

- Definition

Percentage of maximum pretax annual compensation that participant in employee stock purchase, saving, or similar plan (employee benefit plan (EBP)), is permitted to contribute to total pretax annual compensation.

+ References

+ Details

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Namespace Prefix:	us-gaap-ebp_
Data Type:	dtr-types:percentItemType
Balance Type:	na
Period Type:	duration

- Definition

Interest rate on participant loan in schedule of asset held for investment of employee stock purchase, saving, or similar plan (employee benefit plan (EBP)).

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Name Employee Retirement Income Security Act of 1974
-Number 2520
-Section 103
-Subsection 10
-Paragraph b
-Subparagraph (1)(i)(D)
-Publisher DOL-EBSA

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Topic 962
-SubTopic 205
-Name Accounting Standards Codification
-Section S99
-Paragraph 1
-Subparagraph (SX 210.6A-05(a)(Schedule I))
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147477804/962-205-S99-1

+ Details

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- Details

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- Details

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Description of the Plan (Details) - EBP 002		12 Months Ended
Description of the Plan (Details) - EBP 002	Jan. 01, 2025	Dec. 31, 2025 USD ($) withdrawal yr loan $ / shares	Dec. 31, 2024
EBP, Description of Plan [Line Items]
Pretax, maximum annual compensation to total compensation, percentage		50.00%
After tax, maximum annual compensation to total compensation, percentage		6.00%
Automatic deferral rate, annual increase		1.00%
Participant compensation matched, percentage		6.00%
Participant compensation matched, true-up, percentage		6.00%
Requisite service period		5 years
Profit sharing, quarterly fixed rate contribution, percentage	6.00%		1.00%
Profit sharing, requisite service period		5 years
Profit sharing, annual fixed rate contribution, amount		$ 52,000,000
Retirement age \| yr		65
Minimum investment per option, percent		1.00%
Investment per option, increment requirement		1.00%
Cost charged to participant per common stock purchased (in dollars per share) \| $ / shares		$ 0.029
Purchase of common stock, period start after quarterly or annual release		2 days
Minimum borrowing, amount		$ 1,000
Maximum borrowing, amount		$ 50,000
Maximum borrowing, to total account, percentage		50.00%
Note receivable from participant, maximum number of loans \| loan		2
Note receivable from participant, general loan, maximum borrowing term		60 months
Note receivable from participant, primary residence, maximum borrowing term		120 months
Note receivable from participant, maximum withdrawals \| withdrawal		1
Grandfathered withdrawal option, suspension term		6 months
Plan modification request, maximum period after effective date		90 days
Voluntary cash-out, rollover or transfer, minimum		$ 7,000
Involuntary cash-out limit		$ 1,000
Minimum
EBP, Description of Plan [Line Items]
Automatic deferral rate		6.00%
Participant loan, interest rate		3.25%
Maximum
EBP, Description of Plan [Line Items]
Automatic deferral rate		10.00%
Participant loan, interest rate		10.50%