XML 59 R47.htm IDEA: XBRL DOCUMENT v3.23.3

RISK MANAGEMENT AND HEDGING ACTIVITIES USING DERIVATIVES - Cash Flow Hedges (Details) - Cash Flow Hedging - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2023	Sep. 30, 2022	Sep. 30, 2023	Sep. 30, 2022
Derivative Instruments, Gain (Loss) [Line Items]
Total unrealized change in fair value of cash flow hedges in other comprehensive income	$ 15	$ 138	$ 111	$ 74
Total change in fair value of cash flow hedges reclassified from accumulated other comprehensive loss into net income on derivatives	11	(70)	58	(247)
Commodity contracts
Derivative Instruments, Gain (Loss) [Line Items]
Total unrealized change in fair value of cash flow hedges in other comprehensive income	(37)	69	57	(139)
Commodity contracts | Commodity sales revenues
Derivative Instruments, Gain (Loss) [Line Items]
Total change in fair value of cash flow hedges reclassified from accumulated other comprehensive loss into net income on derivatives	31	(78)	149	(546)
Commodity contracts | Cost of sales and fuel
Derivative Instruments, Gain (Loss) [Line Items]
Total change in fair value of cash flow hedges reclassified from accumulated other comprehensive loss into net income on derivatives	(15)	18	(75)	328
Interest-rate contracts
Derivative Instruments, Gain (Loss) [Line Items]
Total unrealized change in fair value of cash flow hedges in other comprehensive income	52	69	54	213
Interest-rate contracts | Interest expense
Derivative Instruments, Gain (Loss) [Line Items]
Total change in fair value of cash flow hedges reclassified from accumulated other comprehensive loss into net income on derivatives	$ (5)	$ (10)	$ (16)	$ (29)

X

- Definition

Derivative Instruments, Gain (Loss) Recognized in Other Comprehensive (Loss), Net

+ References

No definition available.

+ Details

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

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 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 4E
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147480434/815-10-50-4E

+ Details

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

X

- Definition

Amount, before tax, of reclassification of gain (loss) from accumulated other comprehensive income (AOCI) for derivative instrument designated and qualifying as cash flow hedge included in assessment of hedge effectiveness.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 220
-SubTopic 10
-Name Accounting Standards Codification
-Section 45
-Paragraph 11
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147482790/220-10-45-11

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Topic 220
-SubTopic 10
-Name Accounting Standards Codification
-Section 45
-Paragraph 15
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147482790/220-10-45-15

Reference 3: http://www.xbrl.org/2003/role/disclosureRef
-Name Accounting Standards Codification
-Section 50
-Paragraph 4C
-Subparagraph (c)
-SubTopic 10
-Topic 815
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147480434/815-10-50-4C

+ Details

Name:	us-gaap_OtherComprehensiveIncomeLossCashFlowHedgeGainLossReclassificationBeforeTax
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

X

- Details

Name:	us-gaap_DerivativeInstrumentsGainLossByHedgingRelationshipAxis=us-gaap_CashFlowHedgingMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

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

X

- Details

Name:	us-gaap_IncomeStatementLocationAxis=us-gaap_SalesMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_IncomeStatementLocationAxis=us-gaap_CostOfSalesMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

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

X

- Details

Name:	us-gaap_IncomeStatementLocationAxis=us-gaap_InterestExpenseMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type: