10-Q Filing

ONEOK INC /NEW/ CIK: 1039684 Q1 2025

Filing Information

Form Type	10-Q
Accession Number	`0001039684-25-000061`
Period End Date	20250331
Filing Date	20250430
Fiscal Year	2025
Fiscal Period	Q1
XBRL Instance	oke-20250331_htm.xml

Filing Contents

This filing contains the following financial statements:

Balance Sheet 184 Income Statement 92 Cash Flow Statement 108 Stockholders Equity 52 Comprehensive Income 44

Balance Sheet 184 line items

Line Item	Tag	Value	Unit	Period
Cash and cash equivalents	`CashAndCashEquivalentsAtCarryingValue`	$141.00M	USD	Point-in-time
Cash and cash equivalents	`CashAndCashEquivalentsAtCarryingValue`	$141.00M	USD	Point-in-time
Preferred stock, shares, par value (in dollars per share)	`PreferredStockParOrStatedValuePerShare`	$0.01	USD	Point-in-time
Preferred stock, shares, par value (in dollars per share)	`PreferredStockParOrStatedValuePerShare`	$0.01	USD	Point-in-time
Cash and cash equivalents	`CashAndCashEquivalentsAtCarryingValue`	$733.00M	USD	Point-in-time
Cash and cash equivalents	`CashAndCashEquivalentsAtCarryingValue`	$733.00M	USD	Point-in-time
Preferred stock, shares, par value (in dollars per share)	`PreferredStockParOrStatedValuePerShare`	$0.01	USD	Point-in-time
Preferred stock, shares, par value (in dollars per share)	`PreferredStockParOrStatedValuePerShare`	$0.01	USD	Point-in-time
Preferred stock, shares, authorized (in shares)	`PreferredStockSharesAuthorized`	20,000.00	shares	Point-in-time
Preferred stock, shares, authorized (in shares)	`PreferredStockSharesAuthorized`	20,000.00	shares	Point-in-time
Accounts receivable, net	`ReceivablesNetCurrent`	$2.33B	USD	Point-in-time
Accounts receivable, net	`ReceivablesNetCurrent`	$2.33B	USD	Point-in-time
Accounts receivable, net	`ReceivablesNetCurrent`	$2.65B	USD	Point-in-time
Accounts receivable, net	`ReceivablesNetCurrent`	$2.65B	USD	Point-in-time
Preferred stock, shares, authorized (in shares)	`PreferredStockSharesAuthorized`	20,000.00	shares	Point-in-time
Preferred stock, shares, authorized (in shares)	`PreferredStockSharesAuthorized`	20,000.00	shares	Point-in-time
Inventories	`InventoryNet`	$748.00M	USD	Point-in-time
Inventories	`InventoryNet`	$748.00M	USD	Point-in-time
Preferred stock, shares, issued (in shares)	`PreferredStockSharesIssued`	20,000.00	shares	Point-in-time
Preferred stock, shares, issued (in shares)	`PreferredStockSharesIssued`	20,000.00	shares	Point-in-time
Inventories	`InventoryNet`	$905.00M	USD	Point-in-time
Inventories	`InventoryNet`	$905.00M	USD	Point-in-time
Preferred stock, shares, issued (in shares)	`PreferredStockSharesIssued`	20,000.00	shares	Point-in-time
Preferred stock, shares, issued (in shares)	`PreferredStockSharesIssued`	20,000.00	shares	Point-in-time
Common stock, shares, par value (in dollars per share)	`CommonStockParOrStatedValuePerShare`	$0.01	USD	Point-in-time
Common stock, shares, par value (in dollars per share)	`CommonStockParOrStatedValuePerShare`	$0.01	USD	Point-in-time
Other current assets	`OtherAssetsCurrent`	$419.00M	USD	Point-in-time
Other current assets	`OtherAssetsCurrent`	$419.00M	USD	Point-in-time
Common stock, shares, par value (in dollars per share)	`CommonStockParOrStatedValuePerShare`	$0.01	USD	Point-in-time
Common stock, shares, par value (in dollars per share)	`CommonStockParOrStatedValuePerShare`	$0.01	USD	Point-in-time
Other current assets	`OtherAssetsCurrent`	$431.00M	USD	Point-in-time
Other current assets	`OtherAssetsCurrent`	$431.00M	USD	Point-in-time
Total current assets	`AssetsCurrent`	$4.12B	USD	Point-in-time
Total current assets	`AssetsCurrent`	$4.12B	USD	Point-in-time
Common stock, shares, authorized (in shares)	`CommonStockSharesAuthorized`	1.20B	shares	Point-in-time
Common stock, shares, authorized (in shares)	`CommonStockSharesAuthorized`	1.20B	shares	Point-in-time
Total current assets	`AssetsCurrent`	$4.24B	USD	Point-in-time
Total current assets	`AssetsCurrent`	$4.24B	USD	Point-in-time
Common stock, shares, authorized (in shares)	`CommonStockSharesAuthorized`	1.20B	shares	Point-in-time
Common stock, shares, authorized (in shares)	`CommonStockSharesAuthorized`	1.20B	shares	Point-in-time
Common stock, shares, issued (in shares)	`CommonStockSharesIssued`	609.71M	shares	Point-in-time
Common stock, shares, issued (in shares)	`CommonStockSharesIssued`	609.71M	shares	Point-in-time
Common stock, shares, issued (in shares)	`CommonStockSharesIssued`	651.06M	shares	Point-in-time
Common stock, shares, issued (in shares)	`CommonStockSharesIssued`	651.06M	shares	Point-in-time
Common stock, shares, outstanding (in shares)	`CommonStockSharesOutstanding`	583.11M	shares	Point-in-time
Common stock, shares, outstanding (in shares)	`CommonStockSharesOutstanding`	583.11M	shares	Point-in-time
Property, plant and equipment	`PropertyPlantAndEquipmentGross`	$52.27B	USD	Point-in-time
Property, plant and equipment	`PropertyPlantAndEquipmentGross`	$52.27B	USD	Point-in-time
Property, plant and equipment	`PropertyPlantAndEquipmentGross`	$52.89B	USD	Point-in-time
Property, plant and equipment	`PropertyPlantAndEquipmentGross`	$52.89B	USD	Point-in-time
Common stock, shares, outstanding (in shares)	`CommonStockSharesOutstanding`	624.63M	shares	Point-in-time
Common stock, shares, outstanding (in shares)	`CommonStockSharesOutstanding`	624.63M	shares	Point-in-time
Accumulated depreciation and amortization	`AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment`	$6.34B	USD	Point-in-time
Accumulated depreciation and amortization	`AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment`	$6.34B	USD	Point-in-time
Treasury stock, shares (in shares)	`TreasuryStockCommonShares`	26.43M	shares	Point-in-time
Treasury stock, shares (in shares)	`TreasuryStockCommonShares`	26.43M	shares	Point-in-time
Accumulated depreciation and amortization	`AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment`	$6.66B	USD	Point-in-time
Accumulated depreciation and amortization	`AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment`	$6.66B	USD	Point-in-time
Treasury stock, shares (in shares)	`TreasuryStockCommonShares`	26.60M	shares	Point-in-time
Treasury stock, shares (in shares)	`TreasuryStockCommonShares`	26.60M	shares	Point-in-time
Net property, plant and equipment	`PropertyPlantAndEquipmentNet`	$46.23B	USD	Point-in-time
Net property, plant and equipment	`PropertyPlantAndEquipmentNet`	$46.23B	USD	Point-in-time
Net property, plant and equipment	`PropertyPlantAndEquipmentNet`	$45.94B	USD	Point-in-time
Net property, plant and equipment	`PropertyPlantAndEquipmentNet`	$45.94B	USD	Point-in-time
Investments in unconsolidated affiliates	`EquityMethodInvestments`	$2.40B	USD	Point-in-time
Investments in unconsolidated affiliates	`EquityMethodInvestments`	$2.40B	USD	Point-in-time
Investments in unconsolidated affiliates	`EquityMethodInvestments`	$1.94B	USD	Point-in-time
Investments in unconsolidated affiliates	`EquityMethodInvestments`	$1.94B	USD	Point-in-time
Investments in unconsolidated affiliates	`EquityMethodInvestments`	$2.32B	USD	Point-in-time
Investments in unconsolidated affiliates	`EquityMethodInvestments`	$2.32B	USD	Point-in-time
Goodwill	`Goodwill`	$8.09B	USD	Point-in-time
Goodwill	`Goodwill`	$8.09B	USD	Point-in-time
Goodwill	`Goodwill`	$8.09B	USD	Point-in-time
Goodwill	`Goodwill`	$8.09B	USD	Point-in-time
Intangible assets, net	`IntangibleAssetsNetExcludingGoodwill`	$3.00B	USD	Point-in-time
Intangible assets, net	`IntangibleAssetsNetExcludingGoodwill`	$3.00B	USD	Point-in-time
Intangible assets, net	`IntangibleAssetsNetExcludingGoodwill`	$3.04B	USD	Point-in-time
Intangible assets, net	`IntangibleAssetsNetExcludingGoodwill`	$3.04B	USD	Point-in-time
Other assets	`OtherAssetsNoncurrent`	$450.00M	USD	Point-in-time
Other assets	`OtherAssetsNoncurrent`	$450.00M	USD	Point-in-time
Other assets	`OtherAssetsNoncurrent`	$416.00M	USD	Point-in-time
Other assets	`OtherAssetsNoncurrent`	$416.00M	USD	Point-in-time
Total other assets	`InvestmentsAndOtherNoncurrentAssets`	$13.90B	USD	Point-in-time
Total other assets	`InvestmentsAndOtherNoncurrentAssets`	$13.90B	USD	Point-in-time
Total other assets	`InvestmentsAndOtherNoncurrentAssets`	$13.92B	USD	Point-in-time
Total other assets	`InvestmentsAndOtherNoncurrentAssets`	$13.92B	USD	Point-in-time
Total assets	`Assets`	$64.26B	USD	Point-in-time
Total assets	`Assets`	$64.26B	USD	Point-in-time
Total assets	`Assets`	$44.39B	USD	Point-in-time
Total assets	`Assets`	$44.39B	USD	Point-in-time
Total assets	`Assets`	$64.07B	USD	Point-in-time
Total assets	`Assets`	$64.07B	USD	Point-in-time
Current maturities of long-term debt (Note E)	`LongTermDebtCurrent`	$2.06B	USD	Point-in-time
Current maturities of long-term debt (Note E)	`LongTermDebtCurrent`	$2.06B	USD	Point-in-time
Current maturities of long-term debt (Note E)	`LongTermDebtCurrent`	$1.06B	USD	Point-in-time
Current maturities of long-term debt (Note E)	`LongTermDebtCurrent`	$1.06B	USD	Point-in-time
Short-term borrowings (Note E)	`ShortTermBorrowings`	$200.00M	USD	Point-in-time
Short-term borrowings (Note E)	`ShortTermBorrowings`	$200.00M	USD	Point-in-time
Short-term borrowings (Note E)	`ShortTermBorrowings`	-	USD	Point-in-time
Short-term borrowings (Note E)	`ShortTermBorrowings`	-	USD	Point-in-time
Accounts payable	`AccountsPayableCurrent`	$2.44B	USD	Point-in-time
Accounts payable	`AccountsPayableCurrent`	$2.44B	USD	Point-in-time
Accounts payable	`AccountsPayableCurrent`	$2.19B	USD	Point-in-time
Accounts payable	`AccountsPayableCurrent`	$2.19B	USD	Point-in-time
Commodity imbalances	`CommodityExchangesAndImbalancesLiabilitiesCurrent`	$319.00M	USD	Point-in-time
Commodity imbalances	`CommodityExchangesAndImbalancesLiabilitiesCurrent`	$319.00M	USD	Point-in-time
Commodity imbalances	`CommodityExchangesAndImbalancesLiabilitiesCurrent`	$260.00M	USD	Point-in-time
Commodity imbalances	`CommodityExchangesAndImbalancesLiabilitiesCurrent`	$260.00M	USD	Point-in-time
Accrued interest	`InterestPayableCurrent`	$461.00M	USD	Point-in-time
Accrued interest	`InterestPayableCurrent`	$461.00M	USD	Point-in-time
Accrued interest	`InterestPayableCurrent`	$511.00M	USD	Point-in-time
Accrued interest	`InterestPayableCurrent`	$511.00M	USD	Point-in-time
Other current liabilities	`OtherLiabilitiesCurrent`	$702.00M	USD	Point-in-time
Other current liabilities	`OtherLiabilitiesCurrent`	$702.00M	USD	Point-in-time
Other current liabilities	`OtherLiabilitiesCurrent`	$707.00M	USD	Point-in-time
Other current liabilities	`OtherLiabilitiesCurrent`	$707.00M	USD	Point-in-time
Total current liabilities	`LiabilitiesCurrent`	$6.18B	USD	Point-in-time
Total current liabilities	`LiabilitiesCurrent`	$6.18B	USD	Point-in-time
Total current liabilities	`LiabilitiesCurrent`	$4.72B	USD	Point-in-time
Total current liabilities	`LiabilitiesCurrent`	$4.72B	USD	Point-in-time
Long-term debt, excluding current maturities	`LongTermDebtNoncurrent`	$31.02B	USD	Point-in-time
Long-term debt, excluding current maturities	`LongTermDebtNoncurrent`	$31.02B	USD	Point-in-time
Long-term debt, excluding current maturities	`LongTermDebtNoncurrent`	$29.78B	USD	Point-in-time
Long-term debt, excluding current maturities	`LongTermDebtNoncurrent`	$29.78B	USD	Point-in-time
Deferred income taxes	`DeferredIncomeTaxLiabilitiesNet`	$5.59B	USD	Point-in-time
Deferred income taxes	`DeferredIncomeTaxLiabilitiesNet`	$5.59B	USD	Point-in-time
Deferred income taxes	`DeferredIncomeTaxLiabilitiesNet`	$5.45B	USD	Point-in-time
Deferred income taxes	`DeferredIncomeTaxLiabilitiesNet`	$5.45B	USD	Point-in-time
Other deferred credits	`OtherLiabilitiesNoncurrent`	$588.00M	USD	Point-in-time
Other deferred credits	`OtherLiabilitiesNoncurrent`	$588.00M	USD	Point-in-time
Other deferred credits	`OtherLiabilitiesNoncurrent`	$748.00M	USD	Point-in-time
Other deferred credits	`OtherLiabilitiesNoncurrent`	$748.00M	USD	Point-in-time
Total deferred credits and other liabilities	`LiabilitiesOtherThanLongtermDebtNoncurrent`	$6.20B	USD	Point-in-time
Total deferred credits and other liabilities	`LiabilitiesOtherThanLongtermDebtNoncurrent`	$6.20B	USD	Point-in-time
Total deferred credits and other liabilities	`LiabilitiesOtherThanLongtermDebtNoncurrent`	$6.18B	USD	Point-in-time
Total deferred credits and other liabilities	`LiabilitiesOtherThanLongtermDebtNoncurrent`	$6.18B	USD	Point-in-time
Commitments and contingencies (Note J)	`CommitmentsAndContingencies`	-	USD	Point-in-time
Commitments and contingencies (Note J)	`CommitmentsAndContingencies`	-	USD	Point-in-time
Commitments and contingencies (Note J)	`CommitmentsAndContingencies`	-	USD	Point-in-time
Commitments and contingencies (Note J)	`CommitmentsAndContingencies`	-	USD	Point-in-time
Preferred stock, $0.01 par value: authorized and issued 20,000 shares at March 31, 2025, and December 31, 2024	`PreferredStockValue`	-	USD	Point-in-time
Preferred stock, $0.01 par value: authorized and issued 20,000 shares at March 31, 2025, and December 31, 2024	`PreferredStockValue`	-	USD	Point-in-time
Preferred stock, $0.01 par value: authorized and issued 20,000 shares at March 31, 2025, and December 31, 2024	`PreferredStockValue`	-	USD	Point-in-time
Preferred stock, $0.01 par value: authorized and issued 20,000 shares at March 31, 2025, and December 31, 2024	`PreferredStockValue`	-	USD	Point-in-time
Common stock, $0.01 par value: authorized $1,200,000,000 shares; issued $651,056,373 shares and outstanding $624,626,545 shares at March 31, 2025; issued $609,713,834 shares and outstanding $583,110,633 shares at December 31, 2024	`CommonStockValue`	$7.00M	USD	Point-in-time
Common stock, $0.01 par value: authorized $1,200,000,000 shares; issued $651,056,373 shares and outstanding $624,626,545 shares at March 31, 2025; issued $609,713,834 shares and outstanding $583,110,633 shares at December 31, 2024	`CommonStockValue`	$7.00M	USD	Point-in-time
Common stock, $0.01 par value: authorized $1,200,000,000 shares; issued $651,056,373 shares and outstanding $624,626,545 shares at March 31, 2025; issued $609,713,834 shares and outstanding $583,110,633 shares at December 31, 2024	`CommonStockValue`	$6.00M	USD	Point-in-time
Common stock, $0.01 par value: authorized $1,200,000,000 shares; issued $651,056,373 shares and outstanding $624,626,545 shares at March 31, 2025; issued $609,713,834 shares and outstanding $583,110,633 shares at December 31, 2024	`CommonStockValue`	$6.00M	USD	Point-in-time
Paid-in capital	`AdditionalPaidInCapital`	$20.72B	USD	Point-in-time
Paid-in capital	`AdditionalPaidInCapital`	$20.72B	USD	Point-in-time
Paid-in capital	`AdditionalPaidInCapital`	$16.35B	USD	Point-in-time
Paid-in capital	`AdditionalPaidInCapital`	$16.35B	USD	Point-in-time
Accumulated other comprehensive loss	`AccumulatedOtherComprehensiveIncomeLossNetOfTax`	$-96.00M	USD	Point-in-time
Accumulated other comprehensive loss	`AccumulatedOtherComprehensiveIncomeLossNetOfTax`	$-96.00M	USD	Point-in-time
Accumulated other comprehensive loss	`AccumulatedOtherComprehensiveIncomeLossNetOfTax`	$-123.00M	USD	Point-in-time
Accumulated other comprehensive loss	`AccumulatedOtherComprehensiveIncomeLossNetOfTax`	$-123.00M	USD	Point-in-time
Retained earnings	`RetainedEarningsAccumulatedDeficit`	$1.57B	USD	Point-in-time
Retained earnings	`RetainedEarningsAccumulatedDeficit`	$1.57B	USD	Point-in-time
Retained earnings	`RetainedEarningsAccumulatedDeficit`	$1.58B	USD	Point-in-time
Retained earnings	`RetainedEarningsAccumulatedDeficit`	$1.58B	USD	Point-in-time
Treasury stock, at cost: 26,429,828 shares at March 31, 2025, and 26,603,201 shares at December 31, 2024	`TreasuryStockValue`	$810.00M	USD	Point-in-time
Treasury stock, at cost: 26,429,828 shares at March 31, 2025, and 26,603,201 shares at December 31, 2024	`TreasuryStockValue`	$810.00M	USD	Point-in-time
Treasury stock, at cost: 26,429,828 shares at March 31, 2025, and 26,603,201 shares at December 31, 2024	`TreasuryStockValue`	$807.00M	USD	Point-in-time
Treasury stock, at cost: 26,429,828 shares at March 31, 2025, and 26,603,201 shares at December 31, 2024	`TreasuryStockValue`	$807.00M	USD	Point-in-time
Total ONEOK shareholders equity	`StockholdersEquity`	$17.04B	USD	Point-in-time
Total ONEOK shareholders equity	`StockholdersEquity`	$17.04B	USD	Point-in-time
Total ONEOK shareholders equity	`StockholdersEquity`	$21.36B	USD	Point-in-time
Total ONEOK shareholders equity	`StockholdersEquity`	$21.36B	USD	Point-in-time
Noncontrolling interests in consolidated subsidiaries	`MinorityInterest`	$756.00M	USD	Point-in-time
Noncontrolling interests in consolidated subsidiaries	`MinorityInterest`	$756.00M	USD	Point-in-time
Noncontrolling interests in consolidated subsidiaries	`MinorityInterest`	$5.10B	USD	Point-in-time
Noncontrolling interests in consolidated subsidiaries	`MinorityInterest`	$5.10B	USD	Point-in-time
Total equity	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$16.48B	USD	Point-in-time
Total equity	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$16.48B	USD	Point-in-time
Total equity	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$16.45B	USD	Point-in-time
Total equity	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$16.45B	USD	Point-in-time
Total equity	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$22.13B	USD	Point-in-time
Total equity	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$22.13B	USD	Point-in-time
Total equity	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$22.12B	USD	Point-in-time
Total equity	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$22.12B	USD	Point-in-time
Total liabilities and equity	`LiabilitiesAndStockholdersEquity`	$64.26B	USD	Point-in-time
Total liabilities and equity	`LiabilitiesAndStockholdersEquity`	$64.26B	USD	Point-in-time
Total liabilities and equity	`LiabilitiesAndStockholdersEquity`	$64.07B	USD	Point-in-time
Total liabilities and equity	`LiabilitiesAndStockholdersEquity`	$64.07B	USD	Point-in-time

Income Statement 92 line items

Line Item	Tag	Value	Unit	Period
Capitalized interest	`InterestCostsCapitalized`	$12.00M	USD	1 Quarter
Capitalized interest	`InterestCostsCapitalized`	$12.00M	USD	1 Quarter
Capitalized interest	`InterestCostsCapitalized`	$10.00M	USD	1 Quarter
Capitalized interest	`InterestCostsCapitalized`	$10.00M	USD	1 Quarter
Total revenues (Note K)	`RevenueFromContractWithCustomerExcludingAssessedTax`	$8.04B	USD	1 Quarter
Total revenues (Note K)	`RevenueFromContractWithCustomerExcludingAssessedTax`	$8.04B	USD	1 Quarter
Total revenues (Note K)	`RevenueFromContractWithCustomerExcludingAssessedTax`	$4.78B	USD	1 Quarter
Total revenues (Note K)	`RevenueFromContractWithCustomerExcludingAssessedTax`	$4.78B	USD	1 Quarter
Cost of sales and fuel (exclusive of items shown separately below)	`CostOfRevenue`	$2.90B	USD	1 Quarter
Cost of sales and fuel (exclusive of items shown separately below)	`CostOfRevenue`	$2.90B	USD	1 Quarter
Cost of sales and fuel (exclusive of items shown separately below)	`CostOfRevenue`	$5.66B	USD	1 Quarter
Cost of sales and fuel (exclusive of items shown separately below)	`CostOfRevenue`	$5.66B	USD	1 Quarter
Operations and maintenance	`OtherCostAndExpenseOperating`	$655.00M	USD	1 Quarter
Operations and maintenance	`OtherCostAndExpenseOperating`	$655.00M	USD	1 Quarter
Operations and maintenance	`OtherCostAndExpenseOperating`	$483.00M	USD	1 Quarter
Operations and maintenance	`OtherCostAndExpenseOperating`	$483.00M	USD	1 Quarter
Depreciation and amortization	`DepreciationDepletionAndAmortization`	$380.00M	USD	1 Quarter
Depreciation and amortization	`DepreciationDepletionAndAmortization`	$380.00M	USD	1 Quarter
Depreciation and amortization	`DepreciationDepletionAndAmortization`	$254.00M	USD	1 Quarter
Depreciation and amortization	`DepreciationDepletionAndAmortization`	$254.00M	USD	1 Quarter
General taxes	`TaxesOther`	$86.00M	USD	1 Quarter
General taxes	`TaxesOther`	$86.00M	USD	1 Quarter
General taxes	`TaxesOther`	$97.00M	USD	1 Quarter
General taxes	`TaxesOther`	$97.00M	USD	1 Quarter
Transaction costs (Note B)	`BusinessCombinationAcquisitionRelatedCosts`	$42.00M	USD	1 Quarter
Transaction costs (Note B)	`BusinessCombinationAcquisitionRelatedCosts`	$42.00M	USD	1 Quarter
Transaction costs (Note B)	`BusinessCombinationAcquisitionRelatedCosts`	$3.00M	USD	1 Quarter
Transaction costs (Note B)	`BusinessCombinationAcquisitionRelatedCosts`	$3.00M	USD	1 Quarter
Other operating income, net	`OtherOperatingIncomeExpenseNet`	$6.00M	USD	1 Quarter
Other operating income, net	`OtherOperatingIncomeExpenseNet`	$6.00M	USD	1 Quarter
Other operating income, net	`OtherOperatingIncomeExpenseNet`	$6.00M	USD	1 Quarter
Other operating income, net	`OtherOperatingIncomeExpenseNet`	$6.00M	USD	1 Quarter
Operating income	`OperatingIncomeLoss`	$1.06B	USD	1 Quarter
Operating income	`OperatingIncomeLoss`	$1.06B	USD	1 Quarter
Operating income	`OperatingIncomeLoss`	$1.22B	USD	1 Quarter
Operating income	`OperatingIncomeLoss`	$1.22B	USD	1 Quarter
Equity in net earnings from investments (Note I)	`IncomeLossFromEquityMethodInvestments`	$76.00M	USD	1 Quarter
Equity in net earnings from investments (Note I)	`IncomeLossFromEquityMethodInvestments`	$76.00M	USD	1 Quarter
Equity in net earnings from investments (Note I)	`IncomeLossFromEquityMethodInvestments`	$108.00M	USD	1 Quarter
Equity in net earnings from investments (Note I)	`IncomeLossFromEquityMethodInvestments`	$108.00M	USD	1 Quarter
Other income, net	`OtherNonoperatingIncomeExpense`	$7.00M	USD	1 Quarter
Other income, net	`OtherNonoperatingIncomeExpense`	$7.00M	USD	1 Quarter
Other income, net	`OtherNonoperatingIncomeExpense`	$2.00M	USD	1 Quarter
Other income, net	`OtherNonoperatingIncomeExpense`	$2.00M	USD	1 Quarter
Interest expense (net of capitalized interest of $10 and $12, respectively)	`InterestExpenseNonoperating`	$300.00M	USD	1 Quarter
Interest expense (net of capitalized interest of $10 and $12, respectively)	`InterestExpenseNonoperating`	$300.00M	USD	1 Quarter
Interest expense (net of capitalized interest of $10 and $12, respectively)	`InterestExpenseNonoperating`	$442.00M	USD	1 Quarter
Interest expense (net of capitalized interest of $10 and $12, respectively)	`InterestExpenseNonoperating`	$442.00M	USD	1 Quarter
Income before income taxes	`IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest`	$847.00M	USD	1 Quarter
Income before income taxes	`IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest`	$847.00M	USD	1 Quarter
Income before income taxes	`IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest`	$888.00M	USD	1 Quarter
Income before income taxes	`IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest`	$888.00M	USD	1 Quarter
Income taxes	`IncomeTaxExpenseBenefit`	$197.00M	USD	1 Quarter
Income taxes	`IncomeTaxExpenseBenefit`	$197.00M	USD	1 Quarter
Income taxes	`IncomeTaxExpenseBenefit`	$208.00M	USD	1 Quarter
Income taxes	`IncomeTaxExpenseBenefit`	$208.00M	USD	1 Quarter
Net income	`ProfitLoss`	$691.00M	USD	1 Quarter
Net income	`ProfitLoss`	$691.00M	USD	1 Quarter
Net income	`ProfitLoss`	$639.00M	USD	1 Quarter
Net income	`ProfitLoss`	$639.00M	USD	1 Quarter
Less: Net income attributable to noncontrolling interests	`NetIncomeLossAttributableToNoncontrollingInterest`	-	USD	1 Quarter
Less: Net income attributable to noncontrolling interests	`NetIncomeLossAttributableToNoncontrollingInterest`	-	USD	1 Quarter
Less: Net income attributable to noncontrolling interests	`NetIncomeLossAttributableToNoncontrollingInterest`	$55.00M	USD	1 Quarter
Less: Net income attributable to noncontrolling interests	`NetIncomeLossAttributableToNoncontrollingInterest`	$55.00M	USD	1 Quarter
Net income attributable to ONEOK	`NetIncomeLoss`	$639.00M	USD	1 Quarter
Net income attributable to ONEOK	`NetIncomeLoss`	$639.00M	USD	1 Quarter
Net income attributable to ONEOK	`NetIncomeLoss`	$636.00M	USD	1 Quarter
Net income attributable to ONEOK	`NetIncomeLoss`	$636.00M	USD	1 Quarter
Less: Preferred stock dividends	`PreferredStockDividendsIncomeStatementImpact`	-	USD	1 Quarter
Less: Preferred stock dividends	`PreferredStockDividendsIncomeStatementImpact`	-	USD	1 Quarter
Less: Preferred stock dividends	`PreferredStockDividendsIncomeStatementImpact`	-	USD	1 Quarter
Less: Preferred stock dividends	`PreferredStockDividendsIncomeStatementImpact`	-	USD	1 Quarter
Net income available to common shareholders	`NetIncomeLossAvailableToCommonStockholdersBasic`	$639.00M	USD	1 Quarter
Net income available to common shareholders	`NetIncomeLossAvailableToCommonStockholdersBasic`	$639.00M	USD	1 Quarter
Net income available to common shareholders	`NetIncomeLossAvailableToCommonStockholdersBasic`	$636.00M	USD	1 Quarter
Net income available to common shareholders	`NetIncomeLossAvailableToCommonStockholdersBasic`	$636.00M	USD	1 Quarter
Basic EPS (Note H) (in dollars per share)	`EarningsPerShareBasic`	$1.09	USD	1 Quarter
Basic EPS (Note H) (in dollars per share)	`EarningsPerShareBasic`	$1.09	USD	1 Quarter
Basic EPS (Note H) (in dollars per share)	`EarningsPerShareBasic`	$1.04	USD	1 Quarter
Basic EPS (Note H) (in dollars per share)	`EarningsPerShareBasic`	$1.04	USD	1 Quarter
Diluted EPS (Note H) (in dollars per share)	`EarningsPerShareDiluted`	$1.09	USD	1 Quarter
Diluted EPS (Note H) (in dollars per share)	`EarningsPerShareDiluted`	$1.09	USD	1 Quarter
Diluted EPS (Note H) (in dollars per share)	`EarningsPerShareDiluted`	$1.04	USD	1 Quarter
Diluted EPS (Note H) (in dollars per share)	`EarningsPerShareDiluted`	$1.04	USD	1 Quarter
Basic (in shares)	`WeightedAverageNumberOfSharesOutstandingBasic`	584.20M	shares	1 Quarter
Basic (in shares)	`WeightedAverageNumberOfSharesOutstandingBasic`	584.20M	shares	1 Quarter
Basic (in shares)	`WeightedAverageNumberOfSharesOutstandingBasic`	611.40M	shares	1 Quarter
Basic (in shares)	`WeightedAverageNumberOfSharesOutstandingBasic`	611.40M	shares	1 Quarter
Diluted (in shares)	`WeightedAverageNumberOfDilutedSharesOutstanding`	585.70M	shares	1 Quarter
Diluted (in shares)	`WeightedAverageNumberOfDilutedSharesOutstanding`	585.70M	shares	1 Quarter
Diluted (in shares)	`WeightedAverageNumberOfDilutedSharesOutstanding`	612.50M	shares	1 Quarter
Diluted (in shares)	`WeightedAverageNumberOfDilutedSharesOutstanding`	612.50M	shares	1 Quarter

Cash Flow Statement 108 line items

Line Item	Tag	Value	Unit	Period
Net income	`ProfitLoss`	$691.00M	USD	1 Quarter
Net income	`ProfitLoss`	$691.00M	USD	1 Quarter
Net income	`ProfitLoss`	$639.00M	USD	1 Quarter
Net income	`ProfitLoss`	$639.00M	USD	1 Quarter
Depreciation and amortization	`DepreciationDepletionAndAmortization`	$380.00M	USD	1 Quarter
Depreciation and amortization	`DepreciationDepletionAndAmortization`	$380.00M	USD	1 Quarter
Depreciation and amortization	`DepreciationDepletionAndAmortization`	$254.00M	USD	1 Quarter
Depreciation and amortization	`DepreciationDepletionAndAmortization`	$254.00M	USD	1 Quarter
Equity in net earnings from investments (Note I)	`IncomeLossFromEquityMethodInvestments`	$76.00M	USD	1 Quarter
Equity in net earnings from investments (Note I)	`IncomeLossFromEquityMethodInvestments`	$76.00M	USD	1 Quarter
Equity in net earnings from investments (Note I)	`IncomeLossFromEquityMethodInvestments`	$108.00M	USD	1 Quarter
Equity in net earnings from investments (Note I)	`IncomeLossFromEquityMethodInvestments`	$108.00M	USD	1 Quarter
Distributions received from unconsolidated affiliates	`EquityMethodInvestmentDividendsOrDistributions`	$78.00M	USD	1 Quarter
Distributions received from unconsolidated affiliates	`EquityMethodInvestmentDividendsOrDistributions`	$78.00M	USD	1 Quarter
Distributions received from unconsolidated affiliates	`EquityMethodInvestmentDividendsOrDistributions`	$101.00M	USD	1 Quarter
Distributions received from unconsolidated affiliates	`EquityMethodInvestmentDividendsOrDistributions`	$101.00M	USD	1 Quarter
Deferred income taxes	`DeferredIncomeTaxExpenseBenefit`	$170.00M	USD	1 Quarter
Deferred income taxes	`DeferredIncomeTaxExpenseBenefit`	$170.00M	USD	1 Quarter
Deferred income taxes	`DeferredIncomeTaxExpenseBenefit`	$180.00M	USD	1 Quarter
Deferred income taxes	`DeferredIncomeTaxExpenseBenefit`	$180.00M	USD	1 Quarter
Other, net	`OtherOperatingActivitiesCashFlowStatement`	$14.00M	USD	1 Quarter
Other, net	`OtherOperatingActivitiesCashFlowStatement`	$14.00M	USD	1 Quarter
Other, net	`OtherOperatingActivitiesCashFlowStatement`	$23.00M	USD	1 Quarter
Other, net	`OtherOperatingActivitiesCashFlowStatement`	$23.00M	USD	1 Quarter
Accounts receivable	`IncreaseDecreaseInReceivables`	$-6.00M	USD	1 Quarter
Accounts receivable	`IncreaseDecreaseInReceivables`	$-6.00M	USD	1 Quarter
Accounts receivable	`IncreaseDecreaseInReceivables`	$322.00M	USD	1 Quarter
Accounts receivable	`IncreaseDecreaseInReceivables`	$322.00M	USD	1 Quarter
Inventories, net of commodity imbalances	`IncreaseDecreaseInInventories`	$113.00M	USD	1 Quarter
Inventories, net of commodity imbalances	`IncreaseDecreaseInInventories`	$113.00M	USD	1 Quarter
Inventories, net of commodity imbalances	`IncreaseDecreaseInInventories`	$179.00M	USD	1 Quarter
Inventories, net of commodity imbalances	`IncreaseDecreaseInInventories`	$179.00M	USD	1 Quarter
Accounts payable	`IncreaseDecreaseInAccountsPayable`	$-29.00M	USD	1 Quarter
Accounts payable	`IncreaseDecreaseInAccountsPayable`	$-29.00M	USD	1 Quarter
Accounts payable	`IncreaseDecreaseInAccountsPayable`	$281.00M	USD	1 Quarter
Accounts payable	`IncreaseDecreaseInAccountsPayable`	$281.00M	USD	1 Quarter
Risk-management assets and liabilities	`IncreaseDecreaseInRiskManagementAssetsAndLiabilities`	$144.00M	USD	1 Quarter
Risk-management assets and liabilities	`IncreaseDecreaseInRiskManagementAssetsAndLiabilities`	$144.00M	USD	1 Quarter
Risk-management assets and liabilities	`IncreaseDecreaseInRiskManagementAssetsAndLiabilities`	$34.00M	USD	1 Quarter
Risk-management assets and liabilities	`IncreaseDecreaseInRiskManagementAssetsAndLiabilities`	$34.00M	USD	1 Quarter
Other assets and liabilities, net	`IncreaseDecreaseInOtherOperatingCapitalNet`	$156.00M	USD	1 Quarter
Other assets and liabilities, net	`IncreaseDecreaseInOtherOperatingCapitalNet`	$156.00M	USD	1 Quarter
Other assets and liabilities, net	`IncreaseDecreaseInOtherOperatingCapitalNet`	$156.00M	USD	1 Quarter
Other assets and liabilities, net	`IncreaseDecreaseInOtherOperatingCapitalNet`	$156.00M	USD	1 Quarter
Cash provided by operating activities	`NetCashProvidedByUsedInOperatingActivities`	$904.00M	USD	1 Quarter
Cash provided by operating activities	`NetCashProvidedByUsedInOperatingActivities`	$904.00M	USD	1 Quarter
Cash provided by operating activities	`NetCashProvidedByUsedInOperatingActivities`	$596.00M	USD	1 Quarter
Cash provided by operating activities	`NetCashProvidedByUsedInOperatingActivities`	$596.00M	USD	1 Quarter
Capital expenditures (less allowance for equity funds used during construction)	`PaymentsToAcquirePropertyPlantAndEquipment`	$512.00M	USD	1 Quarter
Capital expenditures (less allowance for equity funds used during construction)	`PaymentsToAcquirePropertyPlantAndEquipment`	$512.00M	USD	1 Quarter
Capital expenditures (less allowance for equity funds used during construction)	`PaymentsToAcquirePropertyPlantAndEquipment`	$629.00M	USD	1 Quarter
Capital expenditures (less allowance for equity funds used during construction)	`PaymentsToAcquirePropertyPlantAndEquipment`	$629.00M	USD	1 Quarter
Purchases of and contributions to unconsolidated affiliates	`PaymentsToAcquireInterestInSubsidiariesAndAffiliates`	$92.00M	USD	1 Quarter
Purchases of and contributions to unconsolidated affiliates	`PaymentsToAcquireInterestInSubsidiariesAndAffiliates`	$92.00M	USD	1 Quarter
Purchases of and contributions to unconsolidated affiliates	`PaymentsToAcquireInterestInSubsidiariesAndAffiliates`	$82.00M	USD	1 Quarter
Purchases of and contributions to unconsolidated affiliates	`PaymentsToAcquireInterestInSubsidiariesAndAffiliates`	$82.00M	USD	1 Quarter
Other, net	`PaymentsForProceedsFromOtherInvestingActivities`	$-17.00M	USD	1 Quarter
Other, net	`PaymentsForProceedsFromOtherInvestingActivities`	$-17.00M	USD	1 Quarter
Other, net	`PaymentsForProceedsFromOtherInvestingActivities`	$-26.00M	USD	1 Quarter
Other, net	`PaymentsForProceedsFromOtherInvestingActivities`	$-26.00M	USD	1 Quarter
Cash used in investing activities	`NetCashProvidedByUsedInInvestingActivities`	$-694.00M	USD	1 Quarter
Cash used in investing activities	`NetCashProvidedByUsedInInvestingActivities`	$-694.00M	USD	1 Quarter
Cash used in investing activities	`NetCashProvidedByUsedInInvestingActivities`	$-578.00M	USD	1 Quarter
Cash used in investing activities	`NetCashProvidedByUsedInInvestingActivities`	$-578.00M	USD	1 Quarter
Dividends paid	`PaymentsOfDividends`	$643.00M	USD	1 Quarter
Dividends paid	`PaymentsOfDividends`	$643.00M	USD	1 Quarter
Dividends paid	`PaymentsOfDividends`	$578.00M	USD	1 Quarter
Dividends paid	`PaymentsOfDividends`	$578.00M	USD	1 Quarter
Short-term borrowings, net	`ProceedsFromRepaymentsOfShortTermDebt`	$320.00M	USD	1 Quarter
Short-term borrowings, net	`ProceedsFromRepaymentsOfShortTermDebt`	$320.00M	USD	1 Quarter
Short-term borrowings, net	`ProceedsFromRepaymentsOfShortTermDebt`	$200.00M	USD	1 Quarter
Short-term borrowings, net	`ProceedsFromRepaymentsOfShortTermDebt`	$200.00M	USD	1 Quarter
Repurchase of common stock	`PaymentsForRepurchaseOfCommonStock`	-	USD	1 Quarter
Repurchase of common stock	`PaymentsForRepurchaseOfCommonStock`	-	USD	1 Quarter
Repurchase of common stock	`PaymentsForRepurchaseOfCommonStock`	$30.00M	USD	1 Quarter
Repurchase of common stock	`PaymentsForRepurchaseOfCommonStock`	$30.00M	USD	1 Quarter
Repayment of long-term debt (Note E)	`RepaymentsOfLongTermDebt`	-	USD	1 Quarter
Repayment of long-term debt (Note E)	`RepaymentsOfLongTermDebt`	-	USD	1 Quarter
Repayment of long-term debt (Note E)	`RepaymentsOfLongTermDebt`	$250.00M	USD	1 Quarter
Repayment of long-term debt (Note E)	`RepaymentsOfLongTermDebt`	$250.00M	USD	1 Quarter
Other, net	`ProceedsFromPaymentsForOtherFinancingActivities`	$-33.00M	USD	1 Quarter
Other, net	`ProceedsFromPaymentsForOtherFinancingActivities`	$-33.00M	USD	1 Quarter
Other, net	`ProceedsFromPaymentsForOtherFinancingActivities`	$-79.00M	USD	1 Quarter
Other, net	`ProceedsFromPaymentsForOtherFinancingActivities`	$-79.00M	USD	1 Quarter
Cash used in financing activities	`NetCashProvidedByUsedInFinancingActivities`	$-291.00M	USD	1 Quarter
Cash used in financing activities	`NetCashProvidedByUsedInFinancingActivities`	$-291.00M	USD	1 Quarter
Cash used in financing activities	`NetCashProvidedByUsedInFinancingActivities`	$-802.00M	USD	1 Quarter
Cash used in financing activities	`NetCashProvidedByUsedInFinancingActivities`	$-802.00M	USD	1 Quarter
Change in cash and cash equivalents	`CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect`	$-273.00M	USD	1 Quarter
Change in cash and cash equivalents	`CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect`	$-273.00M	USD	1 Quarter
Change in cash and cash equivalents	`CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect`	$-592.00M	USD	1 Quarter
Change in cash and cash equivalents	`CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect`	$-592.00M	USD	1 Quarter
Cash and cash equivalents at beginning of period	`CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents`	$141.00M	USD	Point-in-time
Cash and cash equivalents at beginning of period	`CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents`	$141.00M	USD	Point-in-time
Cash and cash equivalents at beginning of period	`CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents`	$338.00M	USD	Point-in-time
Cash and cash equivalents at beginning of period	`CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents`	$338.00M	USD	Point-in-time
Cash and cash equivalents at beginning of period	`CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents`	$733.00M	USD	Point-in-time
Cash and cash equivalents at beginning of period	`CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents`	$733.00M	USD	Point-in-time
Cash and cash equivalents at beginning of period	`CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents`	$65.00M	USD	Point-in-time
Cash and cash equivalents at beginning of period	`CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents`	$65.00M	USD	Point-in-time
Cash and cash equivalents at end of period	`CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents`	$141.00M	USD	Point-in-time
Cash and cash equivalents at end of period	`CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents`	$141.00M	USD	Point-in-time
Cash and cash equivalents at end of period	`CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents`	$338.00M	USD	Point-in-time
Cash and cash equivalents at end of period	`CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents`	$338.00M	USD	Point-in-time
Cash and cash equivalents at end of period	`CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents`	$733.00M	USD	Point-in-time
Cash and cash equivalents at end of period	`CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents`	$733.00M	USD	Point-in-time
Cash and cash equivalents at end of period	`CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents`	$65.00M	USD	Point-in-time
Cash and cash equivalents at end of period	`CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents`	$65.00M	USD	Point-in-time

Stockholders Equity 52 line items

Line Item	Tag	Value	Unit	Period
Preferred stock, dividends (in dollars per share)	`PreferredStockDividendsPerShareCashPaid`	$13.75	USD	1 Quarter
Preferred stock, dividends (in dollars per share)	`PreferredStockDividendsPerShareCashPaid`	$13.75	USD	1 Quarter
Preferred stock, dividends (in dollars per share)	`PreferredStockDividendsPerShareCashPaid`	$13.75	USD	1 Quarter
Preferred stock, dividends (in dollars per share)	`PreferredStockDividendsPerShareCashPaid`	$13.75	USD	1 Quarter
Common stock dividends (in dollars per share)	`CommonStockDividendsPerShareCashPaid`	$0.99	USD	1 Quarter
Common stock dividends (in dollars per share)	`CommonStockDividendsPerShareCashPaid`	$0.99	USD	1 Quarter
Common stock dividends (in dollars per share)	`CommonStockDividendsPerShareCashPaid`	$1.03	USD	1 Quarter
Common stock dividends (in dollars per share)	`CommonStockDividendsPerShareCashPaid`	$1.03	USD	1 Quarter
Beginning balance	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$16.48B	USD	Point-in-time
Beginning balance	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$16.48B	USD	Point-in-time
Beginning balance	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$16.45B	USD	Point-in-time
Beginning balance	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$16.45B	USD	Point-in-time
Beginning balance	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$22.13B	USD	Point-in-time
Beginning balance	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$22.13B	USD	Point-in-time
Beginning balance	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$22.12B	USD	Point-in-time
Beginning balance	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$22.12B	USD	Point-in-time
Net income	`ProfitLoss`	$691.00M	USD	1 Quarter
Net income	`ProfitLoss`	$691.00M	USD	1 Quarter
Net income	`ProfitLoss`	$639.00M	USD	1 Quarter
Net income	`ProfitLoss`	$639.00M	USD	1 Quarter
Other comprehensive loss	`OtherComprehensiveIncomeLossNetOfTax`	$-95.00M	USD	1 Quarter
Other comprehensive loss	`OtherComprehensiveIncomeLossNetOfTax`	$-95.00M	USD	1 Quarter
Other comprehensive loss	`OtherComprehensiveIncomeLossNetOfTax`	$-27.00M	USD	1 Quarter
Other comprehensive loss	`OtherComprehensiveIncomeLossNetOfTax`	$-27.00M	USD	1 Quarter
Common stock issued	`StockIssuedDuringPeriodValueOther`	$6.00M	USD	1 Quarter
Common stock issued	`StockIssuedDuringPeriodValueOther`	$6.00M	USD	1 Quarter
Common stock issued	`StockIssuedDuringPeriodValueOther`	$-7.00M	USD	1 Quarter
Common stock issued	`StockIssuedDuringPeriodValueOther`	$-7.00M	USD	1 Quarter
Common stock dividends	`DividendsCommonStock`	$579.00M	USD	1 Quarter
Common stock dividends	`DividendsCommonStock`	$579.00M	USD	1 Quarter
Common stock dividends	`DividendsCommonStock`	$645.00M	USD	1 Quarter
Common stock dividends	`DividendsCommonStock`	$645.00M	USD	1 Quarter
Repurchase of common stock	`TreasuryStockValueAcquiredCostMethod`	$17.00M	USD	1 Quarter
Repurchase of common stock	`TreasuryStockValueAcquiredCostMethod`	$17.00M	USD	1 Quarter
EnLink Acquisition (Note B)	`StockIssuedDuringPeriodValueAcquisitions`	-	USD	1 Quarter
EnLink Acquisition (Note B)	`StockIssuedDuringPeriodValueAcquisitions`	-	USD	1 Quarter
Distributions to noncontrolling interests	`MinorityInterestDecreaseFromDistributionsToNoncontrollingInterestHolders`	$25.00M	USD	1 Quarter
Distributions to noncontrolling interests	`MinorityInterestDecreaseFromDistributionsToNoncontrollingInterestHolders`	$25.00M	USD	1 Quarter
Contributions from noncontrolling interests	`MinorityInterestIncreaseFromContributionsByNoncontrollingInterestHolders`	$4.00M	USD	1 Quarter
Contributions from noncontrolling interests	`MinorityInterestIncreaseFromContributionsByNoncontrollingInterestHolders`	$4.00M	USD	1 Quarter
Other, net	`StockholdersEquityOther`	$-13.00M	USD	1 Quarter
Other, net	`StockholdersEquityOther`	$-13.00M	USD	1 Quarter
Other, net	`StockholdersEquityOther`	$10.00M	USD	1 Quarter
Other, net	`StockholdersEquityOther`	$10.00M	USD	1 Quarter
Ending balance	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$16.48B	USD	Point-in-time
Ending balance	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$16.48B	USD	Point-in-time
Ending balance	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$16.45B	USD	Point-in-time
Ending balance	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$16.45B	USD	Point-in-time
Ending balance	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$22.13B	USD	Point-in-time
Ending balance	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$22.13B	USD	Point-in-time
Ending balance	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$22.12B	USD	Point-in-time
Ending balance	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$22.12B	USD	Point-in-time

Comprehensive Income 44 line items

Line Item	Tag	Value	Unit	Period
Net income	`ProfitLoss`	$691.00M	USD	1 Quarter
Net income	`ProfitLoss`	$691.00M	USD	1 Quarter
Change in fair value of derivatives, tax	`OtherComprehensiveIncomeLossCashFlowHedgeGainLossBeforeReclassificationTax`	$22.00M	USD	1 Quarter
Change in fair value of derivatives, tax	`OtherComprehensiveIncomeLossCashFlowHedgeGainLossBeforeReclassificationTax`	$22.00M	USD	1 Quarter
Change in fair value of derivatives, tax	`OtherComprehensiveIncomeLossCashFlowHedgeGainLossBeforeReclassificationTax`	$11.00M	USD	1 Quarter
Change in fair value of derivatives, tax	`OtherComprehensiveIncomeLossCashFlowHedgeGainLossBeforeReclassificationTax`	$11.00M	USD	1 Quarter
Net income	`ProfitLoss`	$639.00M	USD	1 Quarter
Net income	`ProfitLoss`	$639.00M	USD	1 Quarter
Derivative amounts reclassified to net income, tax	`OtherComprehensiveIncomeLossCashFlowHedgeGainLossReclassificationTax`	$-3.00M	USD	1 Quarter
Derivative amounts reclassified to net income, tax	`OtherComprehensiveIncomeLossCashFlowHedgeGainLossReclassificationTax`	$-3.00M	USD	1 Quarter
Derivative amounts reclassified to net income, tax	`OtherComprehensiveIncomeLossCashFlowHedgeGainLossReclassificationTax`	$6.00M	USD	1 Quarter
Derivative amounts reclassified to net income, tax	`OtherComprehensiveIncomeLossCashFlowHedgeGainLossReclassificationTax`	$6.00M	USD	1 Quarter
Change in retirement and other postretirement benefit plan obligations, tax	`OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansTax`	-	USD	1 Quarter
Change in retirement and other postretirement benefit plan obligations, tax	`OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansTax`	-	USD	1 Quarter
Change in retirement and other postretirement benefit plan obligations, tax	`OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansTax`	-	USD	1 Quarter
Change in retirement and other postretirement benefit plan obligations, tax	`OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansTax`	-	USD	1 Quarter
Change in fair value of derivatives, net of tax of $11 and $22, respectively	`OtherComprehensiveIncomeLossCashFlowHedgeGainLossBeforeReclassificationAfterTax`	$-37.00M	USD	1 Quarter
Change in fair value of derivatives, net of tax of $11 and $22, respectively	`OtherComprehensiveIncomeLossCashFlowHedgeGainLossBeforeReclassificationAfterTax`	$-37.00M	USD	1 Quarter
Change in fair value of derivatives, net of tax of $11 and $22, respectively	`OtherComprehensiveIncomeLossCashFlowHedgeGainLossBeforeReclassificationAfterTax`	$-75.00M	USD	1 Quarter
Change in fair value of derivatives, net of tax of $11 and $22, respectively	`OtherComprehensiveIncomeLossCashFlowHedgeGainLossBeforeReclassificationAfterTax`	$-75.00M	USD	1 Quarter
Derivative amounts reclassified to net income, net of tax of $(3) and $6, respectively	`OtherComprehensiveIncomeLossCashFlowHedgeGainLossReclassificationAfterTax`	$21.00M	USD	1 Quarter
Derivative amounts reclassified to net income, net of tax of $(3) and $6, respectively	`OtherComprehensiveIncomeLossCashFlowHedgeGainLossReclassificationAfterTax`	$21.00M	USD	1 Quarter
Derivative amounts reclassified to net income, net of tax of $(3) and $6, respectively	`OtherComprehensiveIncomeLossCashFlowHedgeGainLossReclassificationAfterTax`	$-10.00M	USD	1 Quarter
Derivative amounts reclassified to net income, net of tax of $(3) and $6, respectively	`OtherComprehensiveIncomeLossCashFlowHedgeGainLossReclassificationAfterTax`	$-10.00M	USD	1 Quarter
Changes in benefit plan obligations and other, net of tax of $ and $, respectively	`OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentNetOfTax`	-	USD	1 Quarter
Changes in benefit plan obligations and other, net of tax of $ and $, respectively	`OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentNetOfTax`	-	USD	1 Quarter
Changes in benefit plan obligations and other, net of tax of $ and $, respectively	`OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentNetOfTax`	$-1.00M	USD	1 Quarter
Changes in benefit plan obligations and other, net of tax of $ and $, respectively	`OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentNetOfTax`	$-1.00M	USD	1 Quarter
Total other comprehensive loss, net of tax	`OtherComprehensiveIncomeLossNetOfTax`	$-95.00M	USD	1 Quarter
Total other comprehensive loss, net of tax	`OtherComprehensiveIncomeLossNetOfTax`	$-95.00M	USD	1 Quarter
Total other comprehensive loss, net of tax	`OtherComprehensiveIncomeLossNetOfTax`	$-27.00M	USD	1 Quarter
Total other comprehensive loss, net of tax	`OtherComprehensiveIncomeLossNetOfTax`	$-27.00M	USD	1 Quarter
Comprehensive income	`ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest`	$664.00M	USD	1 Quarter
Comprehensive income	`ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest`	$664.00M	USD	1 Quarter
Comprehensive income	`ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest`	$544.00M	USD	1 Quarter
Comprehensive income	`ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest`	$544.00M	USD	1 Quarter
Less: Comprehensive income attributable to noncontrolling interests	`ComprehensiveIncomeNetOfTaxAttributableToNoncontrollingInterest`	$55.00M	USD	1 Quarter
Less: Comprehensive income attributable to noncontrolling interests	`ComprehensiveIncomeNetOfTaxAttributableToNoncontrollingInterest`	$55.00M	USD	1 Quarter
Less: Comprehensive income attributable to noncontrolling interests	`ComprehensiveIncomeNetOfTaxAttributableToNoncontrollingInterest`	-	USD	1 Quarter
Less: Comprehensive income attributable to noncontrolling interests	`ComprehensiveIncomeNetOfTaxAttributableToNoncontrollingInterest`	-	USD	1 Quarter
Comprehensive income attributable to ONEOK	`ComprehensiveIncomeNetOfTax`	$609.00M	USD	1 Quarter
Comprehensive income attributable to ONEOK	`ComprehensiveIncomeNetOfTax`	$609.00M	USD	1 Quarter
Comprehensive income attributable to ONEOK	`ComprehensiveIncomeNetOfTax`	$544.00M	USD	1 Quarter
Comprehensive income attributable to ONEOK	`ComprehensiveIncomeNetOfTax`	$544.00M	USD	1 Quarter

Data is extracted from SEC EDGAR XBRL filings. Values shown are as reported in the filing.