XML 90 R38.htm IDEA: XBRL DOCUMENT
v3.22.2.2

RISK MANAGEMENT AND HEDGING ACTIVITIES USING DERIVATIVES Part 3 (Details) - Cash Flow Hedging [Member] - USD ($) $ in Thousands | 3 Months Ended | 9 Months Ended
--- | --- | ---
Sep. 30, 2022 | Sep. 30, 2021 | Sep. 30, 2022 | Sep. 30, 2021
Derivative Instruments, Gain (Loss) [Line Items] |  |  |  |
Unrealized change in fair value of cash flow hedges in other comprehensive income (loss) | $ 138,038 | $ (170,865) | $ 73,698 | $ (352,756)
Change in fair value of cash flow hedges reclassified from accumulated other comprehensive loss into net income on derivatives | (70,069) | (86,283) | (247,287) | (185,751)
Commodity Contracts |  |  |  |
Derivative Instruments, Gain (Loss) [Line Items] |  |  |  |
Unrealized change in fair value of cash flow hedges in other comprehensive income (loss) | 69,430 | (171,665) | (139,203) | (410,572)
Commodity Contracts | Commodity sales revenues |  |  |  |
Derivative Instruments, Gain (Loss) [Line Items] |  |  |  |
Change in fair value of cash flow hedges reclassified from accumulated other comprehensive loss into net income on derivatives | (77,938) | (223,741) | (546,506) | (439,421)
Commodity Contracts | Cost of sales and fuel |  |  |  |
Derivative Instruments, Gain (Loss) [Line Items] |  |  |  |
Change in fair value of cash flow hedges reclassified from accumulated other comprehensive loss into net income on derivatives | 17,479 | 147,360 | 327,782 | 283,153
Interest Rate Contracts |  |  |  |
Derivative Instruments, Gain (Loss) [Line Items] |  |  |  |
Unrealized change in fair value of cash flow hedges in other comprehensive income (loss) | 68,608 | 800 | 212,901 | 57,816
Interest Rate Contracts | Interest expense |  |  |  |
Derivative Instruments, Gain (Loss) [Line Items] |  |  |  |
Change in fair value of cash flow hedges reclassified from accumulated other comprehensive loss into net income on derivatives | $ (9,610) | $ (9,902) | $ (28,563) | $ (29,483)

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 No definition available. + 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 -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section 45 -Paragraph 15 -URI https://asc.fasb.org/extlink&oid=126968391&loc=d3e689-108580 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section 45 -Paragraph 11 -URI https://asc.fasb.org/extlink&oid=126968391&loc=d3e637-108580 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 4C -Subparagraph (c) -URI https://asc.fasb.org/extlink&oid=125515794&loc=SL5624171-113959 + 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: |