$OGE
OGE Energy Corp Stock $oge

$oge Overview Financials Valuation SEC Filings Company Website

2018 Q4 Form 10-K Financial Statement

#000102163519000015 Filed on February 21, 2019

Income Statement

Concept	2018 Q4	2018	2017 Q4
Revenue	$511.8M	$2.270B	$501.9M
YoY Change	1.97%	0.41%	-5.44%
Cost Of Revenue	$228.9M	$892.5M	$201.1M
YoY Change	13.82%	-0.57%	-14.32%
Gross Profit	$282.9M	$1.378B	$300.8M
YoY Change	-5.95%	1.05%	1.59%
Gross Profit Margin	55.28%	60.69%	59.93%
Selling, General & Admin
YoY Change
% of Gross Profit
Research & Development
YoY Change
% of Gross Profit
Depreciation & Amortization	$80.80M	$321.6M	$76.30M
YoY Change	5.9%	13.44%	-6.72%
% of Gross Profit	28.56%	23.34%	25.37%
Operating Expenses	$224.9M	$888.2M	$215.1M
YoY Change	4.56%	6.81%	15.4%
Operating Profit	$58.00M	$489.6M	$85.70M
YoY Change	-32.32%	-7.95%	5.41%
Interest Expense	$11.70M	$156.0M	-$3.200M
YoY Change	-465.63%	8.48%	-73.55%
% of Operating Profit	20.17%	31.86%	-3.73%
Other Income/Expense, Net	-$1.100M	$164.1M	$14.00M
YoY Change	-107.86%	-9.64%	-165.12%
Pretax Income	$68.60M	$497.7M	$96.50M
YoY Change	-28.91%	-12.64%	26.81%
Income Tax	$13.90M	$72.20M	$46.90M
% Of Pretax Income	20.26%	14.51%	48.6%
Net Earnings	$54.70M	$425.5M	$294.8M
YoY Change	-81.45%	-31.26%	409.15%
Net Earnings / Revenue	10.69%	18.74%	58.74%
Basic Earnings Per Share	$0.27	$2.13	$1.48
Diluted Earnings Per Share	$0.27	$2.12	$1.48
COMMON SHARES
Basic Shares Outstanding	199.7M shares	199.7M shares	199.7M shares
Diluted Shares Outstanding		200.5M shares

Balance Sheet

Concept	2018 Q4	2018	2017 Q4
SHORT-TERM ASSETS
Cash & Short-Term Investments	$94.00M	$94.00M	$14.00M
YoY Change	571.43%	571.43%
Cash & Equivalents	$94.30M	$94.00M	$14.40M
Short-Term Investments
Other Short-Term Assets	$29.50M	$94.00M	$54.60M
YoY Change	-45.97%	-22.31%	-33.25%
Inventory	$57.60M	$184.0M	$84.30M
Prepaid Expenses
Receivables	$174.7M	$175.0M	$190.6M
Other Receivables	$10.00M	$10.00M	$5.000M
Total Short-Term Assets	$557.3M	$557.0M	$497.0M
YoY Change	12.13%	12.07%	-9.55%
LONG-TERM ASSETS
Property, Plant & Equipment	$8.644B	$8.717B	$8.340B
YoY Change	3.64%	3.56%	8.36%
Goodwill
YoY Change
Intangibles
YoY Change
Long-Term Investments	$1.178B	$1.178B	$1.160B
YoY Change	1.47%	1.55%	0.16%
Other Assets	$296.6M	$297.0M	$338.7M
YoY Change	-12.43%	-12.39%	-26.64%
Total Long-Term Assets	$10.19B	$10.19B	$9.916B
YoY Change	2.78%	2.78%	5.6%
TOTAL ASSETS
Total Short-Term Assets	$557.3M	$557.0M	$497.0M
Total Long-Term Assets	$10.19B	$10.19B	$9.916B
Total Assets	$10.75B	$10.75B	$10.41B
YoY Change	3.23%	3.23%	4.76%
SHORT-TERM LIABILITIES
YoY Change
Accounts Payable	$239.3M	$239.0M	$230.4M
YoY Change	3.86%	3.91%	12.17%
Accrued Expenses	$92.00M	$92.00M	$80.00M
YoY Change	15.0%	15.0%	-6.98%
Deferred Revenue
YoY Change
Short-Term Debt	$0.00	$0.00	$168.4M
YoY Change	-100.0%	-100.0%	-28.7%
Long-Term Debt Due	$250.0M	$250.0M	$249.8M
YoY Change	0.08%	0.0%	11.17%
Total Short-Term Liabilities	$869.4M	$869.0M	$950.5M
YoY Change	-8.53%	-8.62%	-7.47%
LONG-TERM LIABILITIES
Long-Term Debt	$2.897B	$2.897B	$2.750B
YoY Change	5.36%	5.35%	14.29%
Other Long-Term Liabilities	$162.7M	$1.666B	$157.6M
YoY Change	3.24%	1.96%	2.47%
Total Long-Term Liabilities	$3.060B	$4.563B	$2.907B
YoY Change	5.24%	4.08%	13.58%
TOTAL LIABILITIES
Total Short-Term Liabilities	$869.4M	$869.0M	$950.5M
Total Long-Term Liabilities	$3.060B	$4.563B	$2.907B
Total Liabilities	$6.744B	$6.744B	$6.562B
YoY Change	2.77%	2.77%	1.01%
SHAREHOLDERS EQUITY
Retained Earnings	$2.906B		$2.760B
YoY Change	5.32%		16.57%
Common Stock	$1.128B		$1.115B
YoY Change	1.16%		0.81%
Preferred Stock
YoY Change
Treasury Stock (at cost)
YoY Change
Treasury Stock Shares
Shareholders Equity	$4.005B	$4.005B	$3.851B
YoY Change
Total Liabilities & Shareholders Equity	$10.75B	$10.75B	$10.41B
YoY Change	3.23%	3.23%	4.76%

Cashflow Statement

Concept	2018 Q4	2018	2017 Q4
OPERATING ACTIVITIES
Net Income	$54.70M	$425.5M	$294.8M
YoY Change	-81.45%	-31.26%	409.15%
Depreciation, Depletion And Amortization	$80.80M	$321.6M	$76.30M
YoY Change	5.9%	13.44%	-6.72%
Cash From Operating Activities	$239.4M	$951.1M	$320.8M
YoY Change	-25.37%	21.24%	47.36%
INVESTING ACTIVITIES
Capital Expenditures	-$159.8M	-$573.6M	-$161.3M
YoY Change	-0.93%	-30.4%	-16.6%
Acquisitions
YoY Change
Other Investing Activities	-$3.100M	-$2.400M	-$300.0K
YoY Change	933.33%	-209.09%	-102.22%
Cash From Investing Activities	-$162.9M	-$576.0M	-$161.6M
YoY Change	0.8%	-29.92%	-10.17%
FINANCING ACTIVITIES
Cash Dividend Paid
YoY Change
Common Stock Issuance & Retirement, Net		-$100.0K
YoY Change		0.0%
Debt Paid & Issued, Net		$250.1M
YoY Change		11.11%
Cash From Financing Activities	-72.90M	-$295.2M	-144.8M
YoY Change	-49.65%	-673.2%	286.13%
NET CHANGE
Cash From Operating Activities	239.4M	$951.1M	320.8M
Cash From Investing Activities	-162.9M	-$576.0M	-161.6M
Cash From Financing Activities	-72.90M	-$295.2M	-144.8M
Net Change In Cash	3.600M	$79.90M	14.40M
YoY Change	-75.0%	466.67%	4700.0%
FREE CASH FLOW
Cash From Operating Activities	$239.4M	$951.1M	$320.8M
Capital Expenditures	-$159.8M	-$573.6M	-$161.3M
Free Cash Flow	$399.2M	$1.525B	$482.1M
YoY Change	-17.2%	-5.22%	17.27%

Facts In Submission

Frame	Concept Type	Concept / XBRL Key	Value	Unit
CY2018	dei	Amendment Flag AmendmentFlag	false
CY2018	dei	Current Fiscal Year End Date CurrentFiscalYearEndDate	--12-31
CY2018	dei	Document Fiscal Period Focus DocumentFiscalPeriodFocus	FY
CY2018	dei	Document Fiscal Year Focus DocumentFiscalYearFocus	2018
CY2018	dei	Document Period End Date DocumentPeriodEndDate	2018-12-31
CY2018	dei	Document Type DocumentType	10-K
CY2018	dei	Entity Central Index Key EntityCentralIndexKey	0001021635
CY2018Q4	dei	Entity Common Stock Shares Outstanding EntityCommonStockSharesOutstanding	199732315	shares
CY2018	dei	Entity Current Reporting Status EntityCurrentReportingStatus	Yes
CY2018	dei	Entity Emerging Growth Company EntityEmergingGrowthCompany	false
CY2018	dei	Entity Filer Category EntityFilerCategory	Large Accelerated Filer
CY2018Q4	dei	Entity Public Float EntityPublicFloat	7032567628	USD
CY2018	dei	Entity Registrant Name EntityRegistrantName	OGE ENERGY CORP.
CY2018	dei	Entity Shell Company EntityShellCompany	false
CY2018	dei	Entity Small Business EntitySmallBusiness	false
CY2018	dei	Entity Voluntary Filers EntityVoluntaryFilers	No
CY2018	dei	Entity Well Known Seasoned Issuer EntityWellKnownSeasonedIssuer	Yes
CY2018Q4	oge	Components Of Net Periodic Benefit Costs To Be Recognized In Next Fiscal Year ComponentsOfNetPeriodicBenefitCostsToBeRecognizedInNextFiscalYear	-2300000	USD
CY2017Q4	oge	Deferred Tax Liabilities Income Taxes Refundable To Customers Net DeferredTaxLiabilitiesIncomeTaxesRefundableToCustomersNet	-244300000	USD
CY2018Q4	oge	Deferred Tax Liabilities Income Taxes Refundable To Customers Net DeferredTaxLiabilitiesIncomeTaxesRefundableToCustomersNet	-239600000	USD
CY2017Q4	oge	Deferred Tax Liabilities Unamortized Bond Redemption Costs DeferredTaxLiabilitiesUnamortizedBondRedemptionCosts	2600000	USD
CY2018Q4	oge	Deferred Tax Liabilities Unamortized Bond Redemption Costs DeferredTaxLiabilitiesUnamortizedBondRedemptionCosts	2400000	USD
CY2016	oge	Effective Income Tax Rate Reconciliation Amortization Of Net Unfunded Deferred Taxes EffectiveIncomeTaxRateReconciliationAmortizationOfNetUnfundedDeferredTaxes	0.007
CY2017	oge	Effective Income Tax Rate Reconciliation Amortization Of Net Unfunded Deferred Taxes EffectiveIncomeTaxRateReconciliationAmortizationOfNetUnfundedDeferredTaxes	0.007
CY2018	oge	Effective Income Tax Rate Reconciliation Amortization Of Net Unfunded Deferred Taxes EffectiveIncomeTaxRateReconciliationAmortizationOfNetUnfundedDeferredTaxes	-0.021
CY2016	oge	Effective Income Tax Rate Reconciliation Changein Deferred Tax Liabilities Valuation Allowance Percent EffectiveIncomeTaxRateReconciliationChangeinDeferredTaxLiabilitiesValuationAllowancePercent	0.009
CY2017	oge	Effective Income Tax Rate Reconciliation Changein Deferred Tax Liabilities Valuation Allowance Percent EffectiveIncomeTaxRateReconciliationChangeinDeferredTaxLiabilitiesValuationAllowancePercent	0.004
CY2018	oge	Effective Income Tax Rate Reconciliation Changein Deferred Tax Liabilities Valuation Allowance Percent EffectiveIncomeTaxRateReconciliationChangeinDeferredTaxLiabilitiesValuationAllowancePercent	-0.004
CY2016	oge	Effective Income Tax Rate Reconciliation Executive Compensation Limitation Percent EffectiveIncomeTaxRateReconciliationExecutiveCompensationLimitationPercent	0.0000
CY2017	oge	Effective Income Tax Rate Reconciliation Executive Compensation Limitation Percent EffectiveIncomeTaxRateReconciliationExecutiveCompensationLimitationPercent	0.0000
CY2018	oge	Effective Income Tax Rate Reconciliation Executive Compensation Limitation Percent EffectiveIncomeTaxRateReconciliationExecutiveCompensationLimitationPercent	0.0020
CY2016	oge	Equity Method Investment Summarized Financial Information Operating Income EquityMethodInvestmentSummarizedFinancialInformationOperatingIncome	385000000	USD
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CY2016	oge	Equityin Earnings Amortizationof Basis Difference EquityinEarningsAmortizationofBasisDifference	11600000	USD
CY2017	oge	Equityin Earnings Amortizationof Basis Difference EquityinEarningsAmortizationofBasisDifference	11300000	USD
CY2018	oge	Equityin Earnings Amortizationof Basis Difference EquityinEarningsAmortizationofBasisDifference	11200000	USD
CY2018	oge	Equityin Earnings Changein Basis Difference EquityinEarningsChangeinBasisDifference	-5500000	USD
CY2016	oge	Equityin Earnings Eliminationof Fair Value Adjustments EquityinEarningsEliminationofFairValueAdjustments	16900000	USD
CY2017	oge	Equityin Earnings Eliminationof Fair Value Adjustments EquityinEarningsEliminationofFairValueAdjustments	17200000	USD
CY2018	oge	Equityin Earnings Eliminationof Fair Value Adjustments EquityinEarningsEliminationofFairValueAdjustments	17200000	USD
CY2018	oge	Expected Settlement Charge ExpectedSettlementCharge	20400000	USD
CY2018	oge	Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Administrative Expenses And Charges FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAdministrativeExpensesAndCharges	100000	USD
CY2018	oge	Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Claims Paid FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisClaimsPaid	4600000	USD
CY2018	oge	Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Dividends FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisDividends	500000	USD
CY2018	oge	Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Interest Income FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisInterestIncome	700000	USD
CY2018	oge	Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Unrealized Gains FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisUnrealizedGains	-500000	USD
CY2018	oge	Fair Value Measurementwith Unobservable Inputs Reconciliation Recurring Basis Realized Gains Losses FairValueMeasurementwithUnobservableInputsReconciliationRecurringBasisRealizedGainsLosses	200000	USD
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CY2018	oge	Federaltaxpercentagerevaluation Federaltaxpercentagerevaluation	0.004
CY2018	oge	Increased Regulatory Liabilitiesdueto Income Taxes IncreasedRegulatoryLiabilitiesduetoIncomeTaxes	7400000	USD
CY2016	oge	Increasedecreaseindistributionsfromunconsolidatedaffiliates Increasedecreaseindistributionsfromunconsolidatedaffiliates	102300000	USD
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CY2018	oge	Increasedecreaseindistributionsfromunconsolidatedaffiliates Increasedecreaseindistributionsfromunconsolidatedaffiliates	141200000	USD
CY2018	oge	Increasein Tax Expensefrom Adjustment IncreaseinTaxExpensefromAdjustment	2100000	USD
CY2018	oge	Interim Rate Revenue Reserved InterimRateRevenueReserved	15400000	USD
CY2018Q4	oge	Limited Partner Units Owned LimitedPartnerUnitsOwned	111000000	shares
CY2018	oge	Maximum Payout Range MaximumPayoutRange	2.0000
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CY2017Q4	oge	Non Current Deferred Tax Asset Net Operating Losses NonCurrentDeferredTaxAssetNetOperatingLosses	21100000	USD
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CY2017Q4	oge	Non Current Deferred Tax Assets Deferred Federal Investment Tax Credits NonCurrentDeferredTaxAssetsDeferredFederalInvestmentTaxCredits	500000	USD
CY2018Q4	oge	Non Current Deferred Tax Assets Deferred Federal Investment Tax Credits NonCurrentDeferredTaxAssetsDeferredFederalInvestmentTaxCredits	1800000	USD
CY2017Q4	oge	Non Current Deferred Tax Assets Regulatory Liabilities NonCurrentDeferredTaxAssetsRegulatoryLiabilities	16800000	USD
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CY2017Q4	oge	Non Current Deferred Tax Assets State Tax Credits NonCurrentDeferredTaxAssetsStateTaxCredits	141700000	USD
CY2018Q4	oge	Non Current Deferred Tax Assets State Tax Credits NonCurrentDeferredTaxAssetsStateTaxCredits	156000000	USD
CY2017Q4	oge	Non Current Deferred Tax Liabilities Investmentin Enable Midstream Partners NonCurrentDeferredTaxLiabilitiesInvestmentinEnableMidstreamPartners	441700000	USD
CY2018Q4	oge	Non Current Deferred Tax Liabilities Investmentin Enable Midstream Partners NonCurrentDeferredTaxLiabilitiesInvestmentinEnableMidstreamPartners	469900000	USD
CY2016	oge	Other Comprehensive Income Amortization Of Defined Benefit Pension Plans Net Prior Service Cost Recognizedin Net Periodic Pension Cost Tax OtherComprehensiveIncomeAmortizationOfDefinedBenefitPensionPlansNetPriorServiceCostRecognizedinNetPeriodicPensionCostTax	0	USD
CY2017	oge	Other Comprehensive Income Amortization Of Defined Benefit Pension Plans Net Prior Service Cost Recognizedin Net Periodic Pension Cost Tax OtherComprehensiveIncomeAmortizationOfDefinedBenefitPensionPlansNetPriorServiceCostRecognizedinNetPeriodicPensionCostTax	0	USD
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CY2017	oge	Other Comprehensive Income Loss Amortization Defined Benefit Postretirement Plans Net Prior Service Cost Recognized In Net Periodic Benefit Cost Tax Effect OtherComprehensiveIncomeLossAmortizationDefinedBenefitPostretirementPlansNetPriorServiceCostRecognizedInNetPeriodicBenefitCostTaxEffect	-300000	USD
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CY2016	oge	Other Comprehensive Income Postretirement Plans Net Unamortized Gain Loss Arising During Period Net Of Tax OtherComprehensiveIncomePostretirementPlansNetUnamortizedGainLossArisingDuringPeriodNetOfTax	200000	USD
CY2017	oge	Other Comprehensive Income Postretirement Plans Net Unamortized Gain Loss Arising During Period Net Of Tax OtherComprehensiveIncomePostretirementPlansNetUnamortizedGainLossArisingDuringPeriodNetOfTax	-600000	USD
CY2018	oge	Other Comprehensive Income Postretirement Plans Net Unamortized Gain Loss Arising During Period Net Of Tax OtherComprehensiveIncomePostretirementPlansNetUnamortizedGainLossArisingDuringPeriodNetOfTax	2100000	USD
CY2016	oge	Other Comprehensive Income Postretirement Plans Net Unamortized Gain Loss Arising During Period Tax OtherComprehensiveIncomePostretirementPlansNetUnamortizedGainLossArisingDuringPeriodTax	100000	USD
CY2017	oge	Other Comprehensive Income Postretirement Plans Net Unamortized Gain Loss Arising During Period Tax OtherComprehensiveIncomePostretirementPlansNetUnamortizedGainLossArisingDuringPeriodTax	-200000	USD
CY2018	oge	Other Comprehensive Income Postretirement Plans Net Unamortized Gain Loss Arising During Period Tax OtherComprehensiveIncomePostretirementPlansNetUnamortizedGainLossArisingDuringPeriodTax	700000	USD
CY2016	oge	Other Comprehensive Income Prior Service Credit Arising During Period Recognized In Net Periodic Postretirement Cost Net Of Tax OtherComprehensiveIncomePriorServiceCreditArisingDuringPeriodRecognizedInNetPeriodicPostretirementCostNetOfTax	0	USD
CY2017	oge	Other Comprehensive Income Prior Service Credit Arising During Period Recognized In Net Periodic Postretirement Cost Net Of Tax OtherComprehensiveIncomePriorServiceCreditArisingDuringPeriodRecognizedInNetPeriodicPostretirementCostNetOfTax	500000	USD
CY2018	oge	Other Comprehensive Income Prior Service Credit Arising During Period Recognized In Net Periodic Postretirement Cost Net Of Tax OtherComprehensiveIncomePriorServiceCreditArisingDuringPeriodRecognizedInNetPeriodicPostretirementCostNetOfTax	0	USD
CY2016	oge	Other Comprehensive Income Reclassification Adjustment On Interest Rate Swaps Included In Net Income Tax OtherComprehensiveIncomeReclassificationAdjustmentOnInterestRateSwapsIncludedInNetIncomeTax	0	USD
CY2017	oge	Other Comprehensive Income Reclassification Adjustment On Interest Rate Swaps Included In Net Income Tax OtherComprehensiveIncomeReclassificationAdjustmentOnInterestRateSwapsIncludedInNetIncomeTax	0	USD
CY2018	oge	Other Comprehensive Income Reclassification Adjustment On Interest Rate Swaps Included In Net Income Tax OtherComprehensiveIncomeReclassificationAdjustmentOnInterestRateSwapsIncludedInNetIncomeTax	0	USD
CY2016	oge	Other Comprehensive Income Reclassification Of Defined Benefit Postretirement Plans Net Gain Loss Recognized In Net Periodic Benefit Cost Tax OtherComprehensiveIncomeReclassificationOfDefinedBenefitPostretirementPlansNetGainLossRecognizedInNetPeriodicBenefitCostTax	0	USD
CY2017	oge	Other Comprehensive Income Reclassification Of Defined Benefit Postretirement Plans Net Gain Loss Recognized In Net Periodic Benefit Cost Tax OtherComprehensiveIncomeReclassificationOfDefinedBenefitPostretirementPlansNetGainLossRecognizedInNetPeriodicBenefitCostTax	0	USD
CY2018	oge	Other Comprehensive Income Reclassification Of Defined Benefit Postretirement Plans Net Gain Loss Recognized In Net Periodic Benefit Cost Tax OtherComprehensiveIncomeReclassificationOfDefinedBenefitPostretirementPlansNetGainLossRecognizedInNetPeriodicBenefitCostTax	0	USD
CY2016	oge	Payments To Acquire Productive Assets Including Payments For Business Combination PaymentsToAcquireProductiveAssetsIncludingPaymentsForBusinessCombination	660100000	USD
CY2017	oge	Payments To Acquire Productive Assets Including Payments For Business Combination PaymentsToAcquireProductiveAssetsIncludingPaymentsForBusinessCombination	824100000	USD
CY2018	oge	Payments To Acquire Productive Assets Including Payments For Business Combination PaymentsToAcquireProductiveAssetsIncludingPaymentsForBusinessCombination	573600000	USD
CY2018Q4	oge	Percent Of Intangible Plant Balance Amortizable PercentOfIntangiblePlantBalanceAmortizable	0.987
CY2018Q4	oge	Percent Of Intangible Plant Balance Amortizable Thereafter PercentOfIntangiblePlantBalanceAmortizableThereafter	0.013
CY2018	oge	Percent Of Principal Amount Subject To Optional Tender PercentOfPrincipalAmountSubjectToOptionalTender	1.0000
CY2018Q4	oge	Postretirement Plan Expected Future Benefit Payments In Year Five PostretirementPlanExpectedFutureBenefitPaymentsInYearFive	10200000	USD
CY2018Q4	oge	Postretirement Plan Expected Future Benefit Payments In Year Four PostretirementPlanExpectedFutureBenefitPaymentsInYearFour	11600000	USD
CY2018Q4	oge	Postretirement Plan Expected Future Benefit Payments In Year One PostretirementPlanExpectedFutureBenefitPaymentsInYearOne	11600000	USD
CY2018Q4	oge	Postretirement Plan Expected Future Benefit Payments In Year Three PostretirementPlanExpectedFutureBenefitPaymentsInYearThree	11600000	USD
CY2018Q4	oge	Postretirement Plan Expected Future Benefit Payments In Year Two PostretirementPlanExpectedFutureBenefitPaymentsInYearTwo	11600000	USD
CY2018Q4	oge	Postretirement Plan Expected Future Benefit Payments Thereafter PostretirementPlanExpectedFutureBenefitPaymentsThereafter	46700000	USD
CY2016	oge	Power Plant Long Term Service Agreement PowerPlantLongTermServiceAgreement	39500000	USD
CY2017	oge	Power Plant Long Term Service Agreement PowerPlantLongTermServiceAgreement	-2600000	USD
CY2018	oge	Power Plant Long Term Service Agreement PowerPlantLongTermServiceAgreement	-9200000	USD
CY2018	oge	Projectedprovisionfordepreciationinnextfiscalyear Projectedprovisionfordepreciationinnextfiscalyear	0.027
CY2016	oge	Proportionate Shareof Unconsolidated Affiliate Net Income ProportionateShareofUnconsolidatedAffiliateNetIncome	73300000	USD
CY2017	oge	Proportionate Shareof Unconsolidated Affiliate Net Income ProportionateShareofUnconsolidatedAffiliateNetIncome	102700000	USD
CY2018	oge	Proportionate Shareof Unconsolidated Affiliate Net Income ProportionateShareofUnconsolidatedAffiliateNetIncome	124400000	USD
CY2016	oge	Proportionate Unconsolidated Affiliate Net Income ProportionateUnconsolidatedAffiliateNetIncome	70700000	USD
CY2017	oge	Proportionate Unconsolidated Affiliate Net Income ProportionateUnconsolidatedAffiliateNetIncome	102700000	USD
CY2018	oge	Proportionate Unconsolidated Affiliate Net Income ProportionateUnconsolidatedAffiliateNetIncome	124400000	USD
CY2017	oge	Provision For Depreciation Rate ProvisionForDepreciationRate	0.025
CY2018	oge	Provision For Depreciation Rate ProvisionForDepreciationRate	0.027
CY2018Q4	oge	Public Utilities Amount Requestedfor Acquisition PublicUtilitiesAmountRequestedforAcquisition	53500000	USD
CY2018Q4	oge	Recognitionof Additional Lease Liabilitiesfor Operating Leases RecognitionofAdditionalLeaseLiabilitiesforOperatingLeases	38000000	USD
CY2018	oge	Recommended Disallowancefor Fuel Adjustment RecommendedDisallowanceforFuelAdjustment	3300000	USD
CY2018	oge	Refundfor Fuel Adjustment RefundforFuelAdjustment	2400000	USD
CY2016	oge	Revenuesfrom Alternative Revenue Programs RevenuesfromAlternativeRevenuePrograms	0	USD
CY2017	oge	Revenuesfrom Alternative Revenue Programs RevenuesfromAlternativeRevenuePrograms	0	USD
CY2018	oge	Revenuesfrom Alternative Revenue Programs RevenuesfromAlternativeRevenuePrograms	58600000	USD
CY2016	oge	Timing Differences Relatedto Equity Method Investee Net Income TimingDifferencesRelatedtoEquityMethodInvesteeNetIncome	-12200000	USD
CY2017	oge	Timing Differences Relatedto Equity Method Investee Net Income TimingDifferencesRelatedtoEquityMethodInvesteeNetIncome	0	USD
CY2018	oge	Timing Differences Relatedto Equity Method Investee Net Income TimingDifferencesRelatedtoEquityMethodInvesteeNetIncome	0	USD
CY2017Q4	us-gaap	Accounts Payable Current AccountsPayableCurrent	230400000	USD
CY2018Q4	us-gaap	Accounts Payable Current AccountsPayableCurrent	239300000	USD
CY2017Q4	us-gaap	Accounts Receivable Net Current AccountsReceivableNetCurrent	190600000	USD
CY2018Q4	us-gaap	Accounts Receivable Net Current AccountsReceivableNetCurrent	174700000	USD
CY2017Q4	us-gaap	Accrued Environmental Loss Contingencies Noncurrent AccruedEnvironmentalLossContingenciesNoncurrent	17100000	USD
CY2018Q4	us-gaap	Accrued Environmental Loss Contingencies Noncurrent AccruedEnvironmentalLossContingenciesNoncurrent	23400000	USD
CY2017Q4	us-gaap	Accumulated Depreciation Depletion And Amortization Property Plant And Equipment AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment	3568800000	USD
CY2018Q4	us-gaap	Accumulated Depreciation Depletion And Amortization Property Plant And Equipment AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment	3727400000	USD
CY2016Q4	us-gaap	Accumulated Other Comprehensive Income Loss Net Of Tax AccumulatedOtherComprehensiveIncomeLossNetOfTax	-29300000	USD
CY2017Q4	us-gaap	Accumulated Other Comprehensive Income Loss Net Of Tax AccumulatedOtherComprehensiveIncomeLossNetOfTax	-23200000	USD
CY2018Q4	us-gaap	Accumulated Other Comprehensive Income Loss Net Of Tax AccumulatedOtherComprehensiveIncomeLossNetOfTax	-28900000	USD
CY2017Q4	us-gaap	Additional Paid In Capital Common Stock AdditionalPaidInCapitalCommonStock	1112800000	USD
CY2018Q4	us-gaap	Additional Paid In Capital Common Stock AdditionalPaidInCapitalCommonStock	1125700000	USD
CY2016	us-gaap	Adjustments To Additional Paid In Capital Sharebased Compensation Requisite Service Period Recognition Value AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue	4500000	USD
CY2017	us-gaap	Adjustments To Additional Paid In Capital Sharebased Compensation Requisite Service Period Recognition Value AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue	9100000	USD
CY2018	us-gaap	Adjustments To Additional Paid In Capital Sharebased Compensation Requisite Service Period Recognition Value AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue	13000000	USD
CY2017Q4	us-gaap	Allowance For Doubtful Accounts Receivable AllowanceForDoubtfulAccountsReceivable	1500000	USD
CY2018Q4	us-gaap	Allowance For Doubtful Accounts Receivable AllowanceForDoubtfulAccountsReceivable	1700000	USD
CY2016	us-gaap	Antidilutive Securities Excluded From Computation Of Earnings Per Share Amount AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount	0	shares
CY2017	us-gaap	Antidilutive Securities Excluded From Computation Of Earnings Per Share Amount AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount	0	shares
CY2018	us-gaap	Antidilutive Securities Excluded From Computation Of Earnings Per Share Amount AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount	0	shares
CY2016Q4	us-gaap	Asset Retirement Obligation AssetRetirementObligation	69600000	USD
CY2017Q4	us-gaap	Asset Retirement Obligation AssetRetirementObligation	75100000	USD
CY2018Q4	us-gaap	Asset Retirement Obligation AssetRetirementObligation	83900000	USD
CY2017	us-gaap	Asset Retirement Obligation Accretion Expense AssetRetirementObligationAccretionExpense	3100000	USD
CY2018	us-gaap	Asset Retirement Obligation Accretion Expense AssetRetirementObligationAccretionExpense	3400000	USD
CY2017	us-gaap	Asset Retirement Obligation Liabilities Settled AssetRetirementObligationLiabilitiesSettled	0	USD
CY2018	us-gaap	Asset Retirement Obligation Liabilities Settled AssetRetirementObligationLiabilitiesSettled	1400000	USD
CY2017	us-gaap	Asset Retirement Obligation Revision Of Estimate AssetRetirementObligationRevisionOfEstimate	2400000	USD
CY2018	us-gaap	Asset Retirement Obligation Revision Of Estimate AssetRetirementObligationRevisionOfEstimate	6800000	USD
CY2016Q4	us-gaap	Assets Assets	9939600000	USD
CY2017Q4	us-gaap	Assets Assets	10412700000	USD
CY2018Q4	us-gaap	Assets Assets	10748600000	USD
CY2017Q4	us-gaap	Assets Current AssetsCurrent	497000000	USD
CY2018Q4	us-gaap	Assets Current AssetsCurrent	557300000	USD
CY2017Q4	us-gaap	Capitalization Longterm Debt And Equity CapitalizationLongtermDebtAndEquity	6850500000	USD
CY2018Q4	us-gaap	Capitalization Longterm Debt And Equity CapitalizationLongtermDebtAndEquity	7152000000	USD
CY2016	us-gaap	Capitalized Computer Software Amortization1 CapitalizedComputerSoftwareAmortization1	9400000	USD
CY2017	us-gaap	Capitalized Computer Software Amortization1 CapitalizedComputerSoftwareAmortization1	9000000	USD
CY2018	us-gaap	Capitalized Computer Software Amortization1 CapitalizedComputerSoftwareAmortization1	9600000	USD
CY2015Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	75200000	USD
CY2016Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	300000	USD
CY2017Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	14400000	USD
CY2018Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	94300000	USD
CY2016	us-gaap	Cash And Cash Equivalents Period Increase Decrease CashAndCashEquivalentsPeriodIncreaseDecrease	-74900000	USD
CY2017	us-gaap	Cash And Cash Equivalents Period Increase Decrease CashAndCashEquivalentsPeriodIncreaseDecrease	14100000	USD
CY2018	us-gaap	Cash And Cash Equivalents Period Increase Decrease CashAndCashEquivalentsPeriodIncreaseDecrease	79900000	USD
CY2017Q4	us-gaap	Commitments And Contingencies CommitmentsAndContingencies		USD
CY2018Q4	us-gaap	Commitments And Contingencies CommitmentsAndContingencies		USD
CY2016	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	1.15500
CY2017	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	1.27000
CY2018	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	1.39500
CY2017Q4	us-gaap	Common Stock Par Or Stated Value Per Share CommonStockParOrStatedValuePerShare	0.01
CY2018Q4	us-gaap	Common Stock Par Or Stated Value Per Share CommonStockParOrStatedValuePerShare	0.01
CY2017Q4	us-gaap	Common Stock Shares Authorized CommonStockSharesAuthorized	450000000	shares
CY2018Q4	us-gaap	Common Stock Shares Authorized CommonStockSharesAuthorized	450000000	shares
CY2017Q4	us-gaap	Common Stock Shares Outstanding CommonStockSharesOutstanding	199700000	shares
CY2018Q4	us-gaap	Common Stock Shares Outstanding CommonStockSharesOutstanding	199700000	shares
CY2017Q4	us-gaap	Common Stock Value CommonStockValue	2000000	USD
CY2018Q4	us-gaap	Common Stock Value CommonStockValue	2000000	USD
CY2017Q4	us-gaap	Common Stocks Including Additional Paid In Capital CommonStocksIncludingAdditionalPaidInCapital	1114800000	USD
CY2018Q4	us-gaap	Common Stocks Including Additional Paid In Capital CommonStocksIncludingAdditionalPaidInCapital	1127700000	USD
CY2016	us-gaap	Comprehensive Income Net Of Tax Including Portion Attributable To Noncontrolling Interest ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest	344000000	USD
CY2017	us-gaap	Comprehensive Income Net Of Tax Including Portion Attributable To Noncontrolling Interest ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest	629600000	USD
CY2018	us-gaap	Comprehensive Income Net Of Tax Including Portion Attributable To Noncontrolling Interest ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest	419800000	USD
CY2017Q4	us-gaap	Construction In Progress Gross ConstructionInProgressGross	867500000	USD
CY2018Q4	us-gaap	Construction In Progress Gross ConstructionInProgressGross	376400000	USD
CY2016	us-gaap	Cost Of Goods And Services Sold CostOfGoodsAndServicesSold	880100000	USD
CY2017	us-gaap	Cost Of Goods And Services Sold CostOfGoodsAndServicesSold	897600000	USD
CY2018	us-gaap	Cost Of Goods And Services Sold CostOfGoodsAndServicesSold	892500000	USD
CY2016	us-gaap	Current Federal Tax Expense Benefit CurrentFederalTaxExpenseBenefit	0	USD
CY2017	us-gaap	Current Federal Tax Expense Benefit CurrentFederalTaxExpenseBenefit	4900000	USD
CY2018	us-gaap	Current Federal Tax Expense Benefit CurrentFederalTaxExpenseBenefit	-1900000	USD
CY2016	us-gaap	Current Income Tax Expense Benefit CurrentIncomeTaxExpenseBenefit	-5700000	USD
CY2017	us-gaap	Current Income Tax Expense Benefit CurrentIncomeTaxExpenseBenefit	700000	USD
CY2018	us-gaap	Current Income Tax Expense Benefit CurrentIncomeTaxExpenseBenefit	-6300000	USD
CY2016	us-gaap	Current State And Local Tax Expense Benefit CurrentStateAndLocalTaxExpenseBenefit	-5700000	USD
CY2017	us-gaap	Current State And Local Tax Expense Benefit CurrentStateAndLocalTaxExpenseBenefit	-4200000	USD
CY2018	us-gaap	Current State And Local Tax Expense Benefit CurrentStateAndLocalTaxExpenseBenefit	-4400000	USD
CY2017Q4	us-gaap	Customer Deposits Current CustomerDepositsCurrent	80700000	USD
CY2018Q4	us-gaap	Customer Deposits Current CustomerDepositsCurrent	83600000	USD
CY2017Q4	us-gaap	Customer Refund Liability Current CustomerRefundLiabilityCurrent	1700000	USD
CY2018Q4	us-gaap	Customer Refund Liability Current CustomerRefundLiabilityCurrent	300000	USD
CY2016	us-gaap	Deferred Federal Income Tax Expense Benefit DeferredFederalIncomeTaxExpenseBenefit	126000000	USD
CY2017	us-gaap	Deferred Federal Income Tax Expense Benefit DeferredFederalIncomeTaxExpenseBenefit	-75900000	USD
CY2018	us-gaap	Deferred Federal Income Tax Expense Benefit DeferredFederalIncomeTaxExpenseBenefit	74700000	USD
CY2017Q4	us-gaap	Deferred Fuel Cost DeferredFuelCost	0	USD
CY2018Q4	us-gaap	Deferred Fuel Cost DeferredFuelCost	2000000	USD
CY2016	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	154000000	USD
CY2017	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	-49900000	USD
CY2018	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	78400000	USD
CY2016	us-gaap	Deferred Income Taxes And Tax Credits DeferredIncomeTaxesAndTaxCredits	153800000	USD
CY2017	us-gaap	Deferred Income Taxes And Tax Credits DeferredIncomeTaxesAndTaxCredits	-50000000	USD
CY2018	us-gaap	Deferred Income Taxes And Tax Credits DeferredIncomeTaxesAndTaxCredits	78500000	USD
CY2016	us-gaap	Deferred State And Local Income Tax Expense Benefit DeferredStateAndLocalIncomeTaxExpenseBenefit	28000000	USD
CY2017	us-gaap	Deferred State And Local Income Tax Expense Benefit DeferredStateAndLocalIncomeTaxExpenseBenefit	26000000	USD
CY2018	us-gaap	Deferred State And Local Income Tax Expense Benefit DeferredStateAndLocalIncomeTaxExpenseBenefit	3700000	USD
CY2018Q4	us-gaap	Deferred Storm And Property Reserve Deficiency Current DeferredStormAndPropertyReserveDeficiencyCurrent	2700000	USD
CY2017Q4	us-gaap	Deferred Tax Assets Other DeferredTaxAssetsOther	900000	USD
CY2018Q4	us-gaap	Deferred Tax Assets Other DeferredTaxAssetsOther	-1100000	USD
CY2017Q4	us-gaap	Deferred Tax Assets Tax Credit Carryforwards DeferredTaxAssetsTaxCreditCarryforwards	218500000	USD
CY2018Q4	us-gaap	Deferred Tax Assets Tax Credit Carryforwards DeferredTaxAssetsTaxCreditCarryforwards	237800000	USD
CY2017Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Compensation And Benefits Postretirement Benefits DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsPostretirementBenefits	-25200000	USD
CY2018Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Compensation And Benefits Postretirement Benefits DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsPostretirementBenefits	-23600000	USD
CY2017Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Reserves And Accruals Accrued Liabilities DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsAccruedLiabilities	7400000	USD
CY2018Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Reserves And Accruals Accrued Liabilities DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsAccruedLiabilities	12500000	USD
CY2017Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Reserves And Accruals Allowance For Doubtful Accounts DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsAllowanceForDoubtfulAccounts	400000	USD
CY2018Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Reserves And Accruals Allowance For Doubtful Accounts DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsAllowanceForDoubtfulAccounts	400000	USD
CY2017Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Reserves And Accruals Asset Retirement Obligations DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsAssetRetirementObligations	19200000	USD
CY2018Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Reserves And Accruals Asset Retirement Obligations DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsAssetRetirementObligations	21500000	USD
CY2017Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Reserves And Accruals Other DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsOther	2100000	USD
CY2018Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Reserves And Accruals Other DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsOther	2300000	USD
CY2017Q4	us-gaap	Deferred Tax Liabilities Derivatives DeferredTaxLiabilitiesDerivatives	1600000	USD
CY2018Q4	us-gaap	Deferred Tax Liabilities Derivatives DeferredTaxLiabilitiesDerivatives	1700000	USD
CY2017Q4	us-gaap	Deferred Tax Liabilities Noncurrent DeferredTaxLiabilitiesNoncurrent	1227800000	USD
CY2018Q4	us-gaap	Deferred Tax Liabilities Noncurrent DeferredTaxLiabilitiesNoncurrent	1310900000	USD
CY2017Q4	us-gaap	Deferred Tax Liabilities Prepaid Expenses DeferredTaxLiabilitiesPrepaidExpenses	11500000	USD
CY2018Q4	us-gaap	Deferred Tax Liabilities Prepaid Expenses DeferredTaxLiabilitiesPrepaidExpenses	7600000	USD
CY2017Q4	us-gaap	Deferred Tax Liabilities Property Plant And Equipment DeferredTaxLiabilitiesPropertyPlantAndEquipment	1449600000	USD
CY2018Q4	us-gaap	Deferred Tax Liabilities Property Plant And Equipment DeferredTaxLiabilitiesPropertyPlantAndEquipment	1605300000	USD
CY2017Q4	us-gaap	Deferred Tax Liabilities Regulatory Assets DeferredTaxLiabilitiesRegulatoryAssets	18900000	USD
CY2018Q4	us-gaap	Deferred Tax Liabilities Regulatory Assets DeferredTaxLiabilitiesRegulatoryAssets	17400000	USD
CY2017	us-gaap	Defined Benefit Plan Contributions By Employer DefinedBenefitPlanContributionsByEmployer	20000000	USD
CY2018	us-gaap	Defined Benefit Plan Contributions By Employer DefinedBenefitPlanContributionsByEmployer	15000000	USD
CY2016	us-gaap	Defined Benefit Plan Effect Of One Percentage Point Decrease On Accumulated Postretirement Benefit Obligation1 DefinedBenefitPlanEffectOfOnePercentagePointDecreaseOnAccumulatedPostretirementBenefitObligation1	700000	USD
CY2017	us-gaap	Defined Benefit Plan Effect Of One Percentage Point Decrease On Accumulated Postretirement Benefit Obligation1 DefinedBenefitPlanEffectOfOnePercentagePointDecreaseOnAccumulatedPostretirementBenefitObligation1	300000	USD
CY2018	us-gaap	Defined Benefit Plan Effect Of One Percentage Point Decrease On Accumulated Postretirement Benefit Obligation1 DefinedBenefitPlanEffectOfOnePercentagePointDecreaseOnAccumulatedPostretirementBenefitObligation1	300000	USD
CY2016	us-gaap	Defined Benefit Plan Effect Of One Percentage Point Decrease On Service And Interest Cost Components1 DefinedBenefitPlanEffectOfOnePercentagePointDecreaseOnServiceAndInterestCostComponents1	0	USD
CY2017	us-gaap	Defined Benefit Plan Effect Of One Percentage Point Decrease On Service And Interest Cost Components1 DefinedBenefitPlanEffectOfOnePercentagePointDecreaseOnServiceAndInterestCostComponents1	0	USD
CY2018	us-gaap	Defined Benefit Plan Effect Of One Percentage Point Decrease On Service And Interest Cost Components1 DefinedBenefitPlanEffectOfOnePercentagePointDecreaseOnServiceAndInterestCostComponents1	0	USD
CY2016	us-gaap	Defined Benefit Plan Effect Of One Percentage Point Increase On Accumulated Postretirement Benefit Obligation DefinedBenefitPlanEffectOfOnePercentagePointIncreaseOnAccumulatedPostretirementBenefitObligation	200000	USD
CY2017	us-gaap	Defined Benefit Plan Effect Of One Percentage Point Increase On Accumulated Postretirement Benefit Obligation DefinedBenefitPlanEffectOfOnePercentagePointIncreaseOnAccumulatedPostretirementBenefitObligation	100000	USD
CY2018	us-gaap	Defined Benefit Plan Effect Of One Percentage Point Increase On Accumulated Postretirement Benefit Obligation DefinedBenefitPlanEffectOfOnePercentagePointIncreaseOnAccumulatedPostretirementBenefitObligation	100000	USD
CY2016	us-gaap	Defined Benefit Plan Effect Of One Percentage Point Increase On Service And Interest Cost Components DefinedBenefitPlanEffectOfOnePercentagePointIncreaseOnServiceAndInterestCostComponents	0	USD
CY2017	us-gaap	Defined Benefit Plan Effect Of One Percentage Point Increase On Service And Interest Cost Components DefinedBenefitPlanEffectOfOnePercentagePointIncreaseOnServiceAndInterestCostComponents	0	USD
CY2018	us-gaap	Defined Benefit Plan Effect Of One Percentage Point Increase On Service And Interest Cost Components DefinedBenefitPlanEffectOfOnePercentagePointIncreaseOnServiceAndInterestCostComponents	0	USD
CY2018Q4	us-gaap	Defined Benefit Plan Expected Future Benefit Payments Five Fiscal Years Thereafter DefinedBenefitPlanExpectedFutureBenefitPaymentsFiveFiscalYearsThereafter	267600000	USD
CY2018Q4	us-gaap	Defined Benefit Plan Expected Future Benefit Payments Next Twelve Months DefinedBenefitPlanExpectedFutureBenefitPaymentsNextTwelveMonths	64300000	USD
CY2018Q4	us-gaap	Defined Benefit Plan Expected Future Benefit Payments Year Five DefinedBenefitPlanExpectedFutureBenefitPaymentsYearFive	59700000	USD
CY2018Q4	us-gaap	Defined Benefit Plan Expected Future Benefit Payments Year Four DefinedBenefitPlanExpectedFutureBenefitPaymentsYearFour	59700000	USD
CY2018Q4	us-gaap	Defined Benefit Plan Expected Future Benefit Payments Year Three DefinedBenefitPlanExpectedFutureBenefitPaymentsYearThree	60600000	USD
CY2018Q4	us-gaap	Defined Benefit Plan Expected Future Benefit Payments Year Two DefinedBenefitPlanExpectedFutureBenefitPaymentsYearTwo	60200000	USD
CY2016	us-gaap	Defined Benefit Plan Net Periodic Benefit Cost DefinedBenefitPlanNetPeriodicBenefitCost	22500000	USD
CY2017	us-gaap	Defined Benefit Plan Net Periodic Benefit Cost DefinedBenefitPlanNetPeriodicBenefitCost	32900000	USD
CY2018	us-gaap	Defined Benefit Plan Net Periodic Benefit Cost DefinedBenefitPlanNetPeriodicBenefitCost	35400000	USD
CY2016	us-gaap	Defined Benefit Plan Recognized Net Gain Loss Due To Settlements1 DefinedBenefitPlanRecognizedNetGainLossDueToSettlements1	-8600000	USD
CY2017	us-gaap	Defined Benefit Plan Recognized Net Gain Loss Due To Settlements1 DefinedBenefitPlanRecognizedNetGainLossDueToSettlements1	-15300000	USD
CY2018	us-gaap	Defined Benefit Plan Recognized Net Gain Loss Due To Settlements1 DefinedBenefitPlanRecognizedNetGainLossDueToSettlements1	-26100000	USD
CY2016	us-gaap	Defined Contribution Plan Cost Recognized DefinedContributionPlanCostRecognized	11900000	USD
CY2017	us-gaap	Defined Contribution Plan Cost Recognized DefinedContributionPlanCostRecognized	13200000	USD
CY2018	us-gaap	Defined Contribution Plan Cost Recognized DefinedContributionPlanCostRecognized	13200000	USD
CY2018	us-gaap	Defined Contribution Plan Employer Matching Contribution Percent DefinedContributionPlanEmployerMatchingContributionPercent	0.05
CY2018	us-gaap	Defined Contribution Plan Employer Matching Contribution Percent Of Match DefinedContributionPlanEmployerMatchingContributionPercentOfMatch	2.00
CY2016	us-gaap	Depreciation Amortization And Accretion Net DepreciationAmortizationAndAccretionNet	322600000	USD
CY2017	us-gaap	Depreciation Amortization And Accretion Net DepreciationAmortizationAndAccretionNet	283500000	USD
CY2018	us-gaap	Depreciation Amortization And Accretion Net DepreciationAmortizationAndAccretionNet	321600000	USD
CY2016	us-gaap	Depreciation And Amortization DepreciationAndAmortization	322600000	USD
CY2017	us-gaap	Depreciation And Amortization DepreciationAndAmortization	283500000	USD
CY2018	us-gaap	Depreciation And Amortization DepreciationAndAmortization	321600000	USD
CY2018	us-gaap	Distribution Made To Limited Partner Distributions Declared Per Unit DistributionMadeToLimitedPartnerDistributionsDeclaredPerUnit	0.31800
CY2016	us-gaap	Dividends Common Stock Cash DividendsCommonStockCash	230700000	USD
CY2017	us-gaap	Dividends Common Stock Cash DividendsCommonStockCash	253600000	USD
CY2018	us-gaap	Dividends Common Stock Cash DividendsCommonStockCash	278700000	USD
CY2017Q4	us-gaap	Dividends Payable Current DividendsPayableCurrent	66400000	USD
CY2018Q4	us-gaap	Dividends Payable Current DividendsPayableCurrent	72900000	USD
CY2016	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	1.69
CY2017Q1	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.18
CY2017Q2	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.52
CY2017Q3	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.92
CY2017Q4	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	1.48
CY2017	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	3.10
CY2018Q1	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.28
CY2018Q2	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.55
CY2018Q3	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	1.03
CY2018Q4	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.27
CY2018	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	2.13
CY2016	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	1.69
CY2017Q1	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.18
CY2017Q2	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.52
CY2017Q3	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.92
CY2017Q4	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	1.48
CY2017	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	3.10
CY2018Q1	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.27
CY2018Q2	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.55
CY2018Q3	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	1.02
CY2018Q4	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.27
CY2018	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	2.12
CY2016	us-gaap	Effective Income Tax Rate Continuing Operations EffectiveIncomeTaxRateContinuingOperations	0.305
CY2017	us-gaap	Effective Income Tax Rate Continuing Operations EffectiveIncomeTaxRateContinuingOperations	-0.086
CY2018	us-gaap	Effective Income Tax Rate Continuing Operations EffectiveIncomeTaxRateContinuingOperations	0.145
CY2016	us-gaap	Effective Income Tax Rate Reconciliation At Federal Statutory Income Tax Rate EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate	0.350
CY2017	us-gaap	Effective Income Tax Rate Reconciliation At Federal Statutory Income Tax Rate EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate	0.350
CY2018	us-gaap	Effective Income Tax Rate Reconciliation At Federal Statutory Income Tax Rate EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate	0.210
CY2016	us-gaap	Effective Income Tax Rate Reconciliation Deductions Employee Stock Ownership Plan Dividends EffectiveIncomeTaxRateReconciliationDeductionsEmployeeStockOwnershipPlanDividends	-0.006
CY2017	us-gaap	Effective Income Tax Rate Reconciliation Deductions Employee Stock Ownership Plan Dividends EffectiveIncomeTaxRateReconciliationDeductionsEmployeeStockOwnershipPlanDividends	-0.005
CY2018	us-gaap	Effective Income Tax Rate Reconciliation Deductions Employee Stock Ownership Plan Dividends EffectiveIncomeTaxRateReconciliationDeductionsEmployeeStockOwnershipPlanDividends	-0.003
CY2016	us-gaap	Effective Income Tax Rate Reconciliation Other Adjustments EffectiveIncomeTaxRateReconciliationOtherAdjustments	0.001
CY2017	us-gaap	Effective Income Tax Rate Reconciliation Other Adjustments EffectiveIncomeTaxRateReconciliationOtherAdjustments	-0.001
CY2018	us-gaap	Effective Income Tax Rate Reconciliation Other Adjustments EffectiveIncomeTaxRateReconciliationOtherAdjustments	0.004
CY2016	us-gaap	Effective Income Tax Rate Reconciliation State And Local Income Taxes EffectiveIncomeTaxRateReconciliationStateAndLocalIncomeTaxes	0.019
CY2017	us-gaap	Effective Income Tax Rate Reconciliation State And Local Income Taxes EffectiveIncomeTaxRateReconciliationStateAndLocalIncomeTaxes	0.020
CY2018	us-gaap	Effective Income Tax Rate Reconciliation State And Local Income Taxes EffectiveIncomeTaxRateReconciliationStateAndLocalIncomeTaxes	0.004
CY2016	us-gaap	Effective Income Tax Rate Reconciliation Tax Contingencies EffectiveIncomeTaxRateReconciliationTaxContingencies	0.001
CY2017	us-gaap	Effective Income Tax Rate Reconciliation Tax Contingencies EffectiveIncomeTaxRateReconciliationTaxContingencies	0.000
CY2018	us-gaap	Effective Income Tax Rate Reconciliation Tax Contingencies EffectiveIncomeTaxRateReconciliationTaxContingencies	0.000
CY2016	us-gaap	Effective Income Tax Rate Reconciliation Tax Credits Investment EffectiveIncomeTaxRateReconciliationTaxCreditsInvestment	-0.008
CY2017	us-gaap	Effective Income Tax Rate Reconciliation Tax Credits Investment EffectiveIncomeTaxRateReconciliationTaxCreditsInvestment	-0.001
CY2018	us-gaap	Effective Income Tax Rate Reconciliation Tax Credits Investment EffectiveIncomeTaxRateReconciliationTaxCreditsInvestment	0.000
CY2016	us-gaap	Effective Income Tax Rate Reconciliation Tax Credits Other EffectiveIncomeTaxRateReconciliationTaxCreditsOther	-0.068
CY2017	us-gaap	Effective Income Tax Rate Reconciliation Tax Credits Other EffectiveIncomeTaxRateReconciliationTaxCreditsOther	-0.048
CY2018	us-gaap	Effective Income Tax Rate Reconciliation Tax Credits Other EffectiveIncomeTaxRateReconciliationTaxCreditsOther	-0.051
CY2017Q4	us-gaap	Employee Related Liabilities Current EmployeeRelatedLiabilitiesCurrent	35900000	USD
CY2018Q4	us-gaap	Employee Related Liabilities Current EmployeeRelatedLiabilitiesCurrent	47800000	USD
CY2018Q4	us-gaap	Employee Service Share Based Compensation Nonvested Awards Total Compensation Cost Not Yet Recognized EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognized	11600000	USD
CY2016	us-gaap	Employee Service Share Based Compensation Tax Benefit From Compensation Expense EmployeeServiceShareBasedCompensationTaxBenefitFromCompensationExpense	1800000	USD
CY2017	us-gaap	Employee Service Share Based Compensation Tax Benefit From Compensation Expense EmployeeServiceShareBasedCompensationTaxBenefitFromCompensationExpense	3500000	USD
CY2018	us-gaap	Employee Service Share Based Compensation Tax Benefit From Compensation Expense EmployeeServiceShareBasedCompensationTaxBenefitFromCompensationExpense	3400000	USD
CY2017Q4	us-gaap	Equity Method Investment Difference Between Carrying Amount And Underlying Equity EquityMethodInvestmentDifferenceBetweenCarryingAmountAndUnderlyingEquity	714200000	USD
CY2018Q4	us-gaap	Equity Method Investment Difference Between Carrying Amount And Underlying Equity EquityMethodInvestmentDifferenceBetweenCarryingAmountAndUnderlyingEquity	680300000	USD
CY2016	us-gaap	Equity Method Investment Summarized Financial Information Cost Of Sales EquityMethodInvestmentSummarizedFinancialInformationCostOfSales	1017000000	USD
CY2017	us-gaap	Equity Method Investment Summarized Financial Information Cost Of Sales EquityMethodInvestmentSummarizedFinancialInformationCostOfSales	1381000000	USD
CY2018	us-gaap	Equity Method Investment Summarized Financial Information Cost Of Sales EquityMethodInvestmentSummarizedFinancialInformationCostOfSales	1819000000	USD
CY2017Q4	us-gaap	Equity Method Investment Summarized Financial Information Current Assets EquityMethodInvestmentSummarizedFinancialInformationCurrentAssets	416000000	USD
CY2018Q4	us-gaap	Equity Method Investment Summarized Financial Information Current Assets EquityMethodInvestmentSummarizedFinancialInformationCurrentAssets	449000000	USD
CY2017Q4	us-gaap	Equity Method Investment Summarized Financial Information Current Liabilities EquityMethodInvestmentSummarizedFinancialInformationCurrentLiabilities	1279000000	USD
CY2018Q4	us-gaap	Equity Method Investment Summarized Financial Information Current Liabilities EquityMethodInvestmentSummarizedFinancialInformationCurrentLiabilities	1615000000	USD
CY2016	us-gaap	Equity Method Investment Summarized Financial Information Net Income Loss EquityMethodInvestmentSummarizedFinancialInformationNetIncomeLoss	289500000	USD
CY2017	us-gaap	Equity Method Investment Summarized Financial Information Net Income Loss EquityMethodInvestmentSummarizedFinancialInformationNetIncomeLoss	400300000	USD
CY2018	us-gaap	Equity Method Investment Summarized Financial Information Net Income Loss EquityMethodInvestmentSummarizedFinancialInformationNetIncomeLoss	485300000	USD
CY2017Q4	us-gaap	Equity Method Investment Summarized Financial Information Noncurrent Assets EquityMethodInvestmentSummarizedFinancialInformationNoncurrentAssets	11177000000	USD
CY2018Q4	us-gaap	Equity Method Investment Summarized Financial Information Noncurrent Assets EquityMethodInvestmentSummarizedFinancialInformationNoncurrentAssets	11995000000	USD
CY2017Q4	us-gaap	Equity Method Investment Summarized Financial Information Noncurrent Liabilities EquityMethodInvestmentSummarizedFinancialInformationNoncurrentLiabilities	2660000000	USD
CY2018Q4	us-gaap	Equity Method Investment Summarized Financial Information Noncurrent Liabilities EquityMethodInvestmentSummarizedFinancialInformationNoncurrentLiabilities	3211000000	USD
CY2016	us-gaap	Equity Method Investment Summarized Financial Information Revenue EquityMethodInvestmentSummarizedFinancialInformationRevenue	2272000000	USD
CY2017	us-gaap	Equity Method Investment Summarized Financial Information Revenue EquityMethodInvestmentSummarizedFinancialInformationRevenue	2803000000	USD
CY2018	us-gaap	Equity Method Investment Summarized Financial Information Revenue EquityMethodInvestmentSummarizedFinancialInformationRevenue	3431000000	USD
CY2016Q4	us-gaap	Equity Method Investments EquityMethodInvestments	1158600000	USD
CY2017Q4	us-gaap	Equity Method Investments EquityMethodInvestments	1160400000	USD
CY2018Q4	us-gaap	Equity Method Investments EquityMethodInvestments	1177500000	USD
CY2017Q4	us-gaap	Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Asset Value FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetValue	40200000	USD
CY2018Q4	us-gaap	Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Asset Value FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetValue	36000000	USD
CY2016	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	486300000	USD
CY2017	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	569700000	USD
CY2018	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	497700000	USD
CY2016	us-gaap	Income Loss From Equity Method Investments IncomeLossFromEquityMethodInvestments	101800000	USD
CY2017	us-gaap	Income Loss From Equity Method Investments IncomeLossFromEquityMethodInvestments	131200000	USD
CY2018	us-gaap	Income Loss From Equity Method Investments IncomeLossFromEquityMethodInvestments	152800000	USD
CY2016	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	148100000	USD
CY2017	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	-49300000	USD
CY2018	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	72200000	USD
CY2016	us-gaap	Income Taxes Paid Net IncomeTaxesPaidNet	-5900000	USD
CY2017	us-gaap	Income Taxes Paid Net IncomeTaxesPaidNet	-16000000	USD
CY2018	us-gaap	Income Taxes Paid Net IncomeTaxesPaidNet	2800000	USD
CY2017Q4	us-gaap	Income Taxes Receivable IncomeTaxesReceivable	5800000	USD
CY2018Q4	us-gaap	Income Taxes Receivable IncomeTaxesReceivable	9900000	USD
CY2016	us-gaap	Increase Decrease In Accounts Payable IncreaseDecreaseInAccountsPayable	-45100000	USD
CY2017	us-gaap	Increase Decrease In Accounts Payable IncreaseDecreaseInAccountsPayable	27100000	USD
CY2018	us-gaap	Increase Decrease In Accounts Payable IncreaseDecreaseInAccountsPayable	29700000	USD
CY2016	us-gaap	Increase Decrease In Accounts Receivable IncreaseDecreaseInAccountsReceivable	6900000	USD
CY2017	us-gaap	Increase Decrease In Accounts Receivable IncreaseDecreaseInAccountsReceivable	21800000	USD
CY2018	us-gaap	Increase Decrease In Accounts Receivable IncreaseDecreaseInAccountsReceivable	-19800000	USD
CY2016	us-gaap	Increase Decrease In Deferred Fuel Costs IncreaseDecreaseInDeferredFuelCosts	112600000	USD
CY2017	us-gaap	Increase Decrease In Deferred Fuel Costs IncreaseDecreaseInDeferredFuelCosts	-53000000	USD
CY2018	us-gaap	Increase Decrease In Deferred Fuel Costs IncreaseDecreaseInDeferredFuelCosts	3400000	USD
CY2016	us-gaap	Increase Decrease In Income Taxes Receivable IncreaseDecreaseInIncomeTaxesReceivable	2200000	USD
CY2017	us-gaap	Increase Decrease In Income Taxes Receivable IncreaseDecreaseInIncomeTaxesReceivable	-13600000	USD
CY2018	us-gaap	Increase Decrease In Income Taxes Receivable IncreaseDecreaseInIncomeTaxesReceivable	4100000	USD
CY2016	us-gaap	Increase Decrease In Inventories IncreaseDecreaseInInventories	-32400000	USD
CY2017	us-gaap	Increase Decrease In Inventories IncreaseDecreaseInInventories	3600000	USD
CY2018	us-gaap	Increase Decrease In Inventories IncreaseDecreaseInInventories	-27300000	USD
CY2016	us-gaap	Increase Decrease In Other Current Assets IncreaseDecreaseInOtherCurrentAssets	26200000	USD
CY2017	us-gaap	Increase Decrease In Other Current Assets IncreaseDecreaseInOtherCurrentAssets	-27200000	USD
CY2018	us-gaap	Increase Decrease In Other Current Assets IncreaseDecreaseInOtherCurrentAssets	-25100000	USD
CY2016	us-gaap	Increase Decrease In Other Current Liabilities IncreaseDecreaseInOtherCurrentLiabilities	36400000	USD
CY2017	us-gaap	Increase Decrease In Other Current Liabilities IncreaseDecreaseInOtherCurrentLiabilities	-66700000	USD
CY2018	us-gaap	Increase Decrease In Other Current Liabilities IncreaseDecreaseInOtherCurrentLiabilities	73200000	USD
CY2016	us-gaap	Increase Decrease In Other Noncurrent Assets IncreaseDecreaseInOtherNoncurrentAssets	-15400000	USD
CY2017	us-gaap	Increase Decrease In Other Noncurrent Assets IncreaseDecreaseInOtherNoncurrentAssets	700000	USD
CY2018	us-gaap	Increase Decrease In Other Noncurrent Assets IncreaseDecreaseInOtherNoncurrentAssets	-6200000	USD
CY2016	us-gaap	Increase Decrease In Other Noncurrent Liabilities IncreaseDecreaseInOtherNoncurrentLiabilities	-18900000	USD
CY2017	us-gaap	Increase Decrease In Other Noncurrent Liabilities IncreaseDecreaseInOtherNoncurrentLiabilities	-65500000	USD
CY2018	us-gaap	Increase Decrease In Other Noncurrent Liabilities IncreaseDecreaseInOtherNoncurrentLiabilities	1000000	USD
CY2016	us-gaap	Increase Decrease In Other Regulatory Assets IncreaseDecreaseInOtherRegulatoryAssets	21400000	USD
CY2017	us-gaap	Increase Decrease In Other Regulatory Assets IncreaseDecreaseInOtherRegulatoryAssets	-3700000	USD
CY2018	us-gaap	Increase Decrease In Other Regulatory Assets IncreaseDecreaseInOtherRegulatoryAssets	10800000	USD
CY2016	us-gaap	Increase Decrease In Regulatory Liabilities IncreaseDecreaseInRegulatoryLiabilities	-11800000	USD
CY2017	us-gaap	Increase Decrease In Regulatory Liabilities IncreaseDecreaseInRegulatoryLiabilities	-3700000	USD
CY2018	us-gaap	Increase Decrease In Regulatory Liabilities IncreaseDecreaseInRegulatoryLiabilities	-16500000	USD
CY2016	us-gaap	Incremental Common Shares Attributable To Contingently Issuable Shares IncrementalCommonSharesAttributableToContingentlyIssuableShares	200000	shares
CY2017	us-gaap	Incremental Common Shares Attributable To Contingently Issuable Shares IncrementalCommonSharesAttributableToContingentlyIssuableShares	300000	shares
CY2018	us-gaap	Incremental Common Shares Attributable To Contingently Issuable Shares IncrementalCommonSharesAttributableToContingentlyIssuableShares	800000	shares
CY2016	us-gaap	Interest Costs Capitalized InterestCostsCapitalized	7500000	USD
CY2017	us-gaap	Interest Costs Capitalized InterestCostsCapitalized	18000000	USD
CY2018	us-gaap	Interest Costs Capitalized InterestCostsCapitalized	11700000	USD
CY2016	us-gaap	Interest Expense InterestExpense	142100000	USD
CY2017	us-gaap	Interest Expense InterestExpense	143800000	USD
CY2018	us-gaap	Interest Expense InterestExpense	156000000	USD
CY2016	us-gaap	Interest Expense Long Term Debt InterestExpenseLongTermDebt	143200000	USD
CY2017	us-gaap	Interest Expense Long Term Debt InterestExpenseLongTermDebt	153600000	USD
CY2018	us-gaap	Interest Expense Long Term Debt InterestExpenseLongTermDebt	157400000	USD
CY2016	us-gaap	Interest Expense Short Term Borrowings InterestExpenseShortTermBorrowings	6400000	USD
CY2017	us-gaap	Interest Expense Short Term Borrowings InterestExpenseShortTermBorrowings	8200000	USD
CY2018	us-gaap	Interest Expense Short Term Borrowings InterestExpenseShortTermBorrowings	10300000	USD
CY2016	us-gaap	Interest Paid Net InterestPaidNet	141900000	USD
CY2017	us-gaap	Interest Paid Net InterestPaidNet	139600000	USD
CY2018	us-gaap	Interest Paid Net InterestPaidNet	153800000	USD
CY2017Q4	us-gaap	Interest Payable Current InterestPayableCurrent	44000000	USD
CY2018Q4	us-gaap	Interest Payable Current InterestPayableCurrent	44500000	USD
CY2017Q4	us-gaap	Inventory Net InventoryNet	84300000	USD
CY2018Q4	us-gaap	Inventory Net InventoryNet	57600000	USD
CY2016	us-gaap	Investment Tax Credit InvestmentTaxCredit	-200000	USD
CY2017	us-gaap	Investment Tax Credit InvestmentTaxCredit	-100000	USD
CY2018	us-gaap	Investment Tax Credit InvestmentTaxCredit	100000	USD
CY2016	us-gaap	Investments In And Advances To Affiliates At Fair Value Period Increase Decrease InvestmentsInAndAdvancesToAffiliatesAtFairValuePeriodIncreaseDecrease	0	USD
CY2017	us-gaap	Investments In And Advances To Affiliates At Fair Value Period Increase Decrease InvestmentsInAndAdvancesToAffiliatesAtFairValuePeriodIncreaseDecrease	-8500000	USD
CY2018	us-gaap	Investments In And Advances To Affiliates At Fair Value Period Increase Decrease InvestmentsInAndAdvancesToAffiliatesAtFairValuePeriodIncreaseDecrease	-2500000	USD
CY2017Q4	us-gaap	Liabilities Liabilities	6561600000	USD
CY2018Q4	us-gaap	Liabilities Liabilities	6743500000	USD
CY2017Q4	us-gaap	Liabilities And Stockholders Equity LiabilitiesAndStockholdersEquity	10412700000	USD
CY2018Q4	us-gaap	Liabilities And Stockholders Equity LiabilitiesAndStockholdersEquity	10748600000	USD
CY2017Q4	us-gaap	Liabilities Current LiabilitiesCurrent	950500000	USD
CY2018Q4	us-gaap	Liabilities Current LiabilitiesCurrent	869400000	USD
CY2017Q4	us-gaap	Liabilities Other Than Longterm Debt Noncurrent LiabilitiesOtherThanLongtermDebtNoncurrent	2861500000	USD
CY2018Q4	us-gaap	Liabilities Other Than Longterm Debt Noncurrent LiabilitiesOtherThanLongtermDebtNoncurrent	2977200000	USD
CY2016	us-gaap	Limited Liability Company Llc Or Limited Partnership Lp Members Or Limited Partners Ownership Interest LimitedLiabilityCompanyLLCOrLimitedPartnershipLPMembersOrLimitedPartnersOwnershipInterest	0.2570
CY2017	us-gaap	Limited Liability Company Llc Or Limited Partnership Lp Members Or Limited Partners Ownership Interest LimitedLiabilityCompanyLLCOrLimitedPartnershipLPMembersOrLimitedPartnersOwnershipInterest	0.2570
CY2018	us-gaap	Limited Liability Company Llc Or Limited Partnership Lp Members Or Limited Partners Ownership Interest LimitedLiabilityCompanyLLCOrLimitedPartnershipLPMembersOrLimitedPartnersOwnershipInterest	0.2560
CY2018Q4	us-gaap	Line Of Credit LineOfCredit	300000	USD
CY2018Q4	us-gaap	Line Of Credit Facility Maximum Borrowing Capacity LineOfCreditFacilityMaximumBorrowingCapacity	900000000	USD
CY2017Q4	us-gaap	Long Term Debt LongTermDebt	2999400000	USD
CY2018Q4	us-gaap	Long Term Debt LongTermDebt	3146900000	USD
CY2017Q4	us-gaap	Long Term Debt Current LongTermDebtCurrent	249800000	USD
CY2018Q4	us-gaap	Long Term Debt Current LongTermDebtCurrent	250000000	USD
CY2018Q4	us-gaap	Long Term Debt Maturities Repayments Of Principal In Next Twelve Months LongTermDebtMaturitiesRepaymentsOfPrincipalInNextTwelveMonths	250100000	USD
CY2018Q4	us-gaap	Long Term Debt Maturities Repayments Of Principal In Year Five LongTermDebtMaturitiesRepaymentsOfPrincipalInYearFive	100000	USD
CY2018Q4	us-gaap	Long Term Debt Maturities Repayments Of Principal In Year Four LongTermDebtMaturitiesRepaymentsOfPrincipalInYearFour	100000	USD
CY2018Q4	us-gaap	Long Term Debt Maturities Repayments Of Principal In Year Three LongTermDebtMaturitiesRepaymentsOfPrincipalInYearThree	100000	USD
CY2018Q4	us-gaap	Long Term Debt Maturities Repayments Of Principal In Year Two LongTermDebtMaturitiesRepaymentsOfPrincipalInYearTwo	100000	USD
CY2017Q4	us-gaap	Long Term Debt Noncurrent LongTermDebtNoncurrent	2749600000	USD
CY2018Q4	us-gaap	Long Term Debt Noncurrent LongTermDebtNoncurrent	2896900000	USD
CY2016	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	-99200000	USD
CY2017	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	51500000	USD
CY2018	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	-295200000	USD
CY2016	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-620400000	USD
CY2017	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-821900000	USD
CY2018	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-576000000	USD
CY2016	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	644700000	USD
CY2017	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	784500000	USD
CY2018	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	951100000	USD
CY2017	us-gaap	New Accounting Pronouncement Or Change In Accounting Principle Effect Of Adoption Quantification NewAccountingPronouncementOrChangeInAccountingPrincipleEffectOfAdoptionQuantification	-4500000	USD
CY2017	us-gaap	New Accounting Pronouncement Or Change In Accounting Principle Effect Of Change On Net Income NewAccountingPronouncementOrChangeInAccountingPrincipleEffectOfChangeOnNetIncome	22300000	USD
CY2016	us-gaap	Nonoperating Income Expense NonoperatingIncomeExpense	97600000	USD
CY2017	us-gaap	Nonoperating Income Expense NonoperatingIncomeExpense	181600000	USD
CY2018	us-gaap	Nonoperating Income Expense NonoperatingIncomeExpense	164100000	USD
CY2016	us-gaap	Operating Expenses OperatingExpenses	848300000	USD
CY2017	us-gaap	Operating Expenses OperatingExpenses	831600000	USD
CY2018	us-gaap	Operating Expenses OperatingExpenses	888200000	USD
CY2016	us-gaap	Operating Income Loss OperatingIncomeLoss	530800000	USD
CY2017Q1	us-gaap	Operating Income Loss OperatingIncomeLoss	49800000	USD
CY2017Q2	us-gaap	Operating Income Loss OperatingIncomeLoss	147300000	USD
CY2017Q3	us-gaap	Operating Income Loss OperatingIncomeLoss	249100000	USD
CY2017Q4	us-gaap	Operating Income Loss OperatingIncomeLoss	85700000	USD
CY2017	us-gaap	Operating Income Loss OperatingIncomeLoss	531900000	USD
CY2018Q1	us-gaap	Operating Income Loss OperatingIncomeLoss	66600000	USD
CY2018Q2	us-gaap	Operating Income Loss OperatingIncomeLoss	137700000	USD
CY2018Q3	us-gaap	Operating Income Loss OperatingIncomeLoss	227300000	USD
CY2018Q4	us-gaap	Operating Income Loss OperatingIncomeLoss	58000000	USD
CY2018	us-gaap	Operating Income Loss OperatingIncomeLoss	489600000	USD
CY2018Q4	us-gaap	Operating Leases Future Minimum Payments Due OperatingLeasesFutureMinimumPaymentsDue	72900000	USD
CY2018Q4	us-gaap	Operating Leases Future Minimum Payments Due Current OperatingLeasesFutureMinimumPaymentsDueCurrent	22100000	USD
CY2018Q4	us-gaap	Operating Leases Future Minimum Payments Due In Five Years OperatingLeasesFutureMinimumPaymentsDueInFiveYears	2900000	USD
CY2018Q4	us-gaap	Operating Leases Future Minimum Payments Due In Four Years OperatingLeasesFutureMinimumPaymentsDueInFourYears	2900000	USD
CY2018Q4	us-gaap	Operating Leases Future Minimum Payments Due In Three Years OperatingLeasesFutureMinimumPaymentsDueInThreeYears	3500000	USD
CY2018Q4	us-gaap	Operating Leases Future Minimum Payments Due In Two Years OperatingLeasesFutureMinimumPaymentsDueInTwoYears	3900000	USD
CY2018Q4	us-gaap	Operating Leases Future Minimum Payments Due Thereafter OperatingLeasesFutureMinimumPaymentsDueThereafter	37600000	USD
CY2016	us-gaap	Operating Leases Rent Expense Net OperatingLeasesRentExpenseNet	9300000	USD
CY2017	us-gaap	Operating Leases Rent Expense Net OperatingLeasesRentExpenseNet	6200000	USD
CY2018	us-gaap	Operating Leases Rent Expense Net OperatingLeasesRentExpenseNet	4900000	USD
CY2017Q4	us-gaap	Other Assets Current OtherAssetsCurrent	54600000	USD
CY2018Q4	us-gaap	Other Assets Current OtherAssetsCurrent	29500000	USD
CY2017Q4	us-gaap	Other Assets Miscellaneous Noncurrent OtherAssetsMiscellaneousNoncurrent	55700000	USD
CY2018Q4	us-gaap	Other Assets Miscellaneous Noncurrent OtherAssetsMiscellaneousNoncurrent	10800000	USD
CY2017Q4	us-gaap	Other Assets Noncurrent OtherAssetsNoncurrent	338700000	USD
CY2018Q4	us-gaap	Other Assets Noncurrent OtherAssetsNoncurrent	296600000	USD
CY2016	us-gaap	Other Comprehensive Income Defined Benefit Plans Net Unamortized Gain Loss Arising During Period Net Of Tax OtherComprehensiveIncomeDefinedBenefitPlansNetUnamortizedGainLossArisingDuringPeriodNetOfTax	-700000	USD
CY2017	us-gaap	Other Comprehensive Income Defined Benefit Plans Net Unamortized Gain Loss Arising During Period Net Of Tax OtherComprehensiveIncomeDefinedBenefitPlansNetUnamortizedGainLossArisingDuringPeriodNetOfTax	400000	USD
CY2018	us-gaap	Other Comprehensive Income Defined Benefit Plans Net Unamortized Gain Loss Arising During Period Net Of Tax OtherComprehensiveIncomeDefinedBenefitPlansNetUnamortizedGainLossArisingDuringPeriodNetOfTax	-14100000	USD
CY2016	us-gaap	Other Comprehensive Income Defined Benefit Plans Net Unamortized Gain Loss Arising During Period Tax OtherComprehensiveIncomeDefinedBenefitPlansNetUnamortizedGainLossArisingDuringPeriodTax	-600000	USD
CY2017	us-gaap	Other Comprehensive Income Defined Benefit Plans Net Unamortized Gain Loss Arising During Period Tax OtherComprehensiveIncomeDefinedBenefitPlansNetUnamortizedGainLossArisingDuringPeriodTax	200000	USD
CY2018	us-gaap	Other Comprehensive Income Defined Benefit Plans Net Unamortized Gain Loss Arising During Period Tax OtherComprehensiveIncomeDefinedBenefitPlansNetUnamortizedGainLossArisingDuringPeriodTax	-4700000	USD
CY2016	us-gaap	Other Comprehensive Income Loss Amortization Adjustment From Aoci Pension And Other Postretirement Benefit Plans For Net Prior Service Cost Credit Net Of Tax OtherComprehensiveIncomeLossAmortizationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansForNetPriorServiceCostCreditNetOfTax	0	USD
CY2017	us-gaap	Other Comprehensive Income Loss Amortization Adjustment From Aoci Pension And Other Postretirement Benefit Plans For Net Prior Service Cost Credit Net Of Tax OtherComprehensiveIncomeLossAmortizationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansForNetPriorServiceCostCreditNetOfTax	6300000	USD
CY2018	us-gaap	Other Comprehensive Income Loss Amortization Adjustment From Aoci Pension And Other Postretirement Benefit Plans For Net Prior Service Cost Credit Net Of Tax OtherComprehensiveIncomeLossAmortizationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansForNetPriorServiceCostCreditNetOfTax	0	USD
CY2016	us-gaap	Other Comprehensive Income Loss Amortization Adjustment From Aoci Pension And Other Postretirement Benefit Plans For Net Prior Service Cost Credit Tax OtherComprehensiveIncomeLossAmortizationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansForNetPriorServiceCostCreditTax	0	USD
CY2017	us-gaap	Other Comprehensive Income Loss Amortization Adjustment From Aoci Pension And Other Postretirement Benefit Plans For Net Prior Service Cost Credit Tax OtherComprehensiveIncomeLossAmortizationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansForNetPriorServiceCostCreditTax	4000000	USD
CY2018	us-gaap	Other Comprehensive Income Loss Amortization Adjustment From Aoci Pension And Other Postretirement Benefit Plans For Net Prior Service Cost Credit Tax OtherComprehensiveIncomeLossAmortizationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansForNetPriorServiceCostCreditTax	0	USD
CY2017	us-gaap	Other Comprehensive Income Loss Before Reclassifications Net Of Tax OtherComprehensiveIncomeLossBeforeReclassificationsNetOfTax	6100000	USD
CY2018	us-gaap	Other Comprehensive Income Loss Before Reclassifications Net Of Tax OtherComprehensiveIncomeLossBeforeReclassificationsNetOfTax	-12000000	USD
CY2016	us-gaap	Other Comprehensive Income Loss Finalization Of Pension And Non Pension Postretirement Plan Valuation Net Of Tax OtherComprehensiveIncomeLossFinalizationOfPensionAndNonPensionPostretirementPlanValuationNetOfTax	5000000	USD
CY2017	us-gaap	Other Comprehensive Income Loss Finalization Of Pension And Non Pension Postretirement Plan Valuation Net Of Tax OtherComprehensiveIncomeLossFinalizationOfPensionAndNonPensionPostretirementPlanValuationNetOfTax	2200000	USD
CY2018	us-gaap	Other Comprehensive Income Loss Finalization Of Pension And Non Pension Postretirement Plan Valuation Net Of Tax OtherComprehensiveIncomeLossFinalizationOfPensionAndNonPensionPostretirementPlanValuationNetOfTax	4700000	USD
CY2016	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	5800000	USD
CY2017	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	10600000	USD
CY2018	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	-5700000	USD
CY2017	us-gaap	Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent	6100000	USD
CY2018	us-gaap	Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent	-5700000	USD
CY2016	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci Pension And Other Postretirement Benefit Plans For Net Gain Loss Net Of Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansForNetGainLossNetOfTax	-2800000	USD
CY2017	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci Pension And Other Postretirement Benefit Plans For Net Gain Loss Net Of Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansForNetGainLossNetOfTax	-2500000	USD
CY2018	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci Pension And Other Postretirement Benefit Plans For Net Gain Loss Net Of Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansForNetGainLossNetOfTax	-3300000	USD
CY2016	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci Pension And Other Postretirement Benefit Plans For Net Gain Loss Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansForNetGainLossTax	1700000	USD
CY2017	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci Pension And Other Postretirement Benefit Plans For Net Gain Loss Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansForNetGainLossTax	1400000	USD
CY2018	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci Pension And Other Postretirement Benefit Plans For Net Gain Loss Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansForNetGainLossTax	1100000	USD
CY2016	us-gaap	Other Cost And Expense Operating OtherCostAndExpenseOperating	438100000	USD
CY2017	us-gaap	Other Cost And Expense Operating OtherCostAndExpenseOperating	458700000	USD
CY2018	us-gaap	Other Cost And Expense Operating OtherCostAndExpenseOperating	474600000	USD
CY2017Q4	us-gaap	Other Inventory Supplies OtherInventorySupplies	80800000	USD
CY2018Q4	us-gaap	Other Inventory Supplies OtherInventorySupplies	126700000	USD
CY2017Q4	us-gaap	Other Investments OtherInvestments	1237100000	USD
CY2018Q4	us-gaap	Other Investments OtherInvestments	1250900000	USD
CY2017Q4	us-gaap	Other Liabilities Current OtherLiabilitiesCurrent	28700000	USD
CY2018Q4	us-gaap	Other Liabilities Current OtherLiabilitiesCurrent	87000000	USD
CY2017Q4	us-gaap	Other Liabilities Noncurrent OtherLiabilitiesNoncurrent	157600000	USD
CY2018Q4	us-gaap	Other Liabilities Noncurrent OtherLiabilitiesNoncurrent	169900000	USD
CY2017Q4	us-gaap	Other Long Term Investments OtherLongTermInvestments	76700000	USD
CY2018Q4	us-gaap	Other Long Term Investments OtherLongTermInvestments	73400000	USD
CY2016	us-gaap	Other Nonoperating Expense OtherNonoperatingExpense	16900000	USD
CY2017	us-gaap	Other Nonoperating Expense OtherNonoperatingExpense	14100000	USD
CY2018	us-gaap	Other Nonoperating Expense OtherNonoperatingExpense	23400000	USD
CY2016	us-gaap	Other Nonoperating Income OtherNonoperatingIncome	26000000	USD
CY2017	us-gaap	Other Nonoperating Income OtherNonoperatingIncome	46400000	USD
CY2018	us-gaap	Other Nonoperating Income OtherNonoperatingIncome	21700000	USD
CY2016	us-gaap	Other Nonoperating Income Expense OtherNonoperatingIncomeExpense	-4200000	USD
CY2017	us-gaap	Other Nonoperating Income Expense OtherNonoperatingIncomeExpense	50400000	USD
CY2018	us-gaap	Other Nonoperating Income Expense OtherNonoperatingIncomeExpense	11300000	USD
CY2016	us-gaap	Payments Of Dividends Common Stock PaymentsOfDividendsCommonStock	225100000	USD
CY2017	us-gaap	Payments Of Dividends Common Stock PaymentsOfDividendsCommonStock	247600000	USD
CY2018	us-gaap	Payments Of Dividends Common Stock PaymentsOfDividendsCommonStock	272200000	USD
CY2016	us-gaap	Payments To Acquire Productive Assets PaymentsToAcquireProductiveAssets	660100000	USD
CY2017	us-gaap	Payments To Acquire Productive Assets PaymentsToAcquireProductiveAssets	824100000	USD
CY2018	us-gaap	Payments To Acquire Productive Assets PaymentsToAcquireProductiveAssets	573600000	USD
CY2016	us-gaap	Pension And Other Postretirement Benefit Expense PensionAndOtherPostretirementBenefitExpense	27500000	USD
CY2017	us-gaap	Pension And Other Postretirement Benefit Expense PensionAndOtherPostretirementBenefitExpense	21600000	USD
CY2018	us-gaap	Pension And Other Postretirement Benefit Expense PensionAndOtherPostretirementBenefitExpense	10800000	USD
CY2017Q4	us-gaap	Pension And Other Postretirement Defined Benefit Plans Liabilities Noncurrent PensionAndOtherPostretirementDefinedBenefitPlansLiabilitiesNoncurrent	192700000	USD
CY2018Q4	us-gaap	Pension And Other Postretirement Defined Benefit Plans Liabilities Noncurrent PensionAndOtherPostretirementDefinedBenefitPlansLiabilitiesNoncurrent	225700000	USD
CY2017Q4	us-gaap	Postemployment Benefits Liability Current And Noncurrent PostemploymentBenefitsLiabilityCurrentAndNoncurrent	2500000	USD
CY2018Q4	us-gaap	Postemployment Benefits Liability Current And Noncurrent PostemploymentBenefitsLiabilityCurrentAndNoncurrent	1900000	USD
CY2018Q4	us-gaap	Preferred Stock Shares Outstanding PreferredStockSharesOutstanding	0	shares
CY2016	us-gaap	Proceeds From Equity Method Investment Dividends Or Distributions Return Of Capital ProceedsFromEquityMethodInvestmentDividendsOrDistributionsReturnOfCapital	38800000	USD
CY2017	us-gaap	Proceeds From Equity Method Investment Dividends Or Distributions Return Of Capital ProceedsFromEquityMethodInvestmentDividendsOrDistributionsReturnOfCapital	10000000	USD
CY2018	us-gaap	Proceeds From Equity Method Investment Dividends Or Distributions Return Of Capital ProceedsFromEquityMethodInvestmentDividendsOrDistributionsReturnOfCapital	0	USD
CY2016	us-gaap	Proceeds From Issuance Of Common Stock ProceedsFromIssuanceOfCommonStock	0	USD
CY2017	us-gaap	Proceeds From Issuance Of Common Stock ProceedsFromIssuanceOfCommonStock	-100000	USD
CY2018	us-gaap	Proceeds From Issuance Of Common Stock ProceedsFromIssuanceOfCommonStock	-100000	USD
CY2016	us-gaap	Proceeds From Issuance Of Long Term Debt ProceedsFromIssuanceOfLongTermDebt	0	USD
CY2017	us-gaap	Proceeds From Issuance Of Long Term Debt ProceedsFromIssuanceOfLongTermDebt	592100000	USD
CY2018	us-gaap	Proceeds From Issuance Of Long Term Debt ProceedsFromIssuanceOfLongTermDebt	396000000	USD
CY2016	us-gaap	Proceeds From Payments For Other Financing Activities ProceedsFromPaymentsForOtherFinancingActivities	-100000	USD
CY2017	us-gaap	Proceeds From Payments For Other Financing Activities ProceedsFromPaymentsForOtherFinancingActivities	0	USD
CY2018	us-gaap	Proceeds From Payments For Other Financing Activities ProceedsFromPaymentsForOtherFinancingActivities	-400000	USD
CY2016	us-gaap	Proceeds From Repayments Of Short Term Debt ProceedsFromRepaymentsOfShortTermDebt	236200000	USD
CY2017	us-gaap	Proceeds From Repayments Of Short Term Debt ProceedsFromRepaymentsOfShortTermDebt	-67800000	USD
CY2018	us-gaap	Proceeds From Repayments Of Short Term Debt ProceedsFromRepaymentsOfShortTermDebt	-168400000	USD
CY2016	us-gaap	Proceeds From Sale Of Productive Assets ProceedsFromSaleOfProductiveAssets	900000	USD
CY2017	us-gaap	Proceeds From Sale Of Productive Assets ProceedsFromSaleOfProductiveAssets	700000	USD
CY2018	us-gaap	Proceeds From Sale Of Productive Assets ProceedsFromSaleOfProductiveAssets	100000	USD
CY2016	us-gaap	Profit Loss ProfitLoss	338200000	USD
CY2017Q1	us-gaap	Profit Loss ProfitLoss	36000000	USD
CY2017Q2	us-gaap	Profit Loss ProfitLoss	104800000	USD
CY2017Q3	us-gaap	Profit Loss ProfitLoss	183400000	USD
CY2017Q4	us-gaap	Profit Loss ProfitLoss	294800000	USD
CY2017	us-gaap	Profit Loss ProfitLoss	619000000	USD
CY2018Q1	us-gaap	Profit Loss ProfitLoss	55000000	USD
CY2018Q2	us-gaap	Profit Loss ProfitLoss	110700000	USD
CY2018Q3	us-gaap	Profit Loss ProfitLoss	205100000	USD
CY2018Q4	us-gaap	Profit Loss ProfitLoss	54700000	USD
CY2018	us-gaap	Profit Loss ProfitLoss	425500000	USD
CY2017Q4	us-gaap	Property Plant And Equipment Gross PropertyPlantAndEquipmentGross	11908700000	USD
CY2018Q4	us-gaap	Property Plant And Equipment Gross PropertyPlantAndEquipmentGross	12371200000	USD
CY2017Q4	us-gaap	Property Plant And Equipment Net PropertyPlantAndEquipmentNet	8339900000	USD
CY2018Q4	us-gaap	Property Plant And Equipment Net PropertyPlantAndEquipmentNet	8643800000	USD
CY2016	us-gaap	Public Utilities Allowance For Funds Used During Construction Additions PublicUtilitiesAllowanceForFundsUsedDuringConstructionAdditions	7500000	USD
CY2017	us-gaap	Public Utilities Allowance For Funds Used During Construction Additions PublicUtilitiesAllowanceForFundsUsedDuringConstructionAdditions	18000000	USD
CY2018	us-gaap	Public Utilities Allowance For Funds Used During Construction Additions PublicUtilitiesAllowanceForFundsUsedDuringConstructionAdditions	11700000	USD
CY2016	us-gaap	Public Utilities Allowance For Funds Used During Construction Capitalized Cost Of Equity PublicUtilitiesAllowanceForFundsUsedDuringConstructionCapitalizedCostOfEquity	14200000	USD
CY2017	us-gaap	Public Utilities Allowance For Funds Used During Construction Capitalized Cost Of Equity PublicUtilitiesAllowanceForFundsUsedDuringConstructionCapitalizedCostOfEquity	39700000	USD
CY2018	us-gaap	Public Utilities Allowance For Funds Used During Construction Capitalized Cost Of Equity PublicUtilitiesAllowanceForFundsUsedDuringConstructionCapitalizedCostOfEquity	23800000	USD
CY2016	us-gaap	Public Utilities Allowance For Funds Used During Construction Rate PublicUtilitiesAllowanceForFundsUsedDuringConstructionRate	0.082
CY2017	us-gaap	Public Utilities Allowance For Funds Used During Construction Rate PublicUtilitiesAllowanceForFundsUsedDuringConstructionRate	0.082
CY2018	us-gaap	Public Utilities Allowance For Funds Used During Construction Rate PublicUtilitiesAllowanceForFundsUsedDuringConstructionRate	0.076
CY2018	us-gaap	Public Utilities Approved Debt Capital Structure Percentage PublicUtilitiesApprovedDebtCapitalStructurePercentage	0.4700
CY2018	us-gaap	Public Utilities Approved Equity Capital Structure Percentage PublicUtilitiesApprovedEquityCapitalStructurePercentage	0.5300
CY2018	us-gaap	Public Utilities Approved Rate Increase Decrease Amount PublicUtilitiesApprovedRateIncreaseDecreaseAmount	-64000000	USD
CY2018	us-gaap	Public Utilities Approved Return On Equity Percentage PublicUtilitiesApprovedReturnOnEquityPercentage	0.0950
CY2017Q4	us-gaap	Public Utilities Property Plant And Equipment Amount Of Acquisition Adjustments Related Accumulated Depreciation1 PublicUtilitiesPropertyPlantAndEquipmentAmountOfAcquisitionAdjustmentsRelatedAccumulatedDepreciation1	50800000	USD
CY2018Q4	us-gaap	Public Utilities Property Plant And Equipment Amount Of Acquisition Adjustments Related Accumulated Depreciation1 PublicUtilitiesPropertyPlantAndEquipmentAmountOfAcquisitionAdjustmentsRelatedAccumulatedDepreciation1	56300000	USD
CY2017Q4	us-gaap	Public Utilities Property Plant And Equipment Plant In Service PublicUtilitiesPropertyPlantAndEquipmentPlantInService	11041200000	USD
CY2018Q4	us-gaap	Public Utilities Property Plant And Equipment Plant In Service PublicUtilitiesPropertyPlantAndEquipmentPlantInService	11994800000	USD
CY2017	us-gaap	Reclassification From Accumulated Other Comprehensive Income Current Period Net Of Tax ReclassificationFromAccumulatedOtherComprehensiveIncomeCurrentPeriodNetOfTax	1800000	USD
CY2018	us-gaap	Reclassification From Accumulated Other Comprehensive Income Current Period Net Of Tax ReclassificationFromAccumulatedOtherComprehensiveIncomeCurrentPeriodNetOfTax	1600000	USD
CY2017	us-gaap	Reclassification From Aoci Current Period Net Of Tax Attributable To Parent ReclassificationFromAociCurrentPeriodNetOfTaxAttributableToParent	4500000	USD
CY2018	us-gaap	Reclassification From Aoci Current Period Net Of Tax Attributable To Parent ReclassificationFromAociCurrentPeriodNetOfTaxAttributableToParent	6300000	USD
CY2017Q4	us-gaap	Regulatory Assets Current RegulatoryAssetsCurrent	40800000	USD
CY2018Q4	us-gaap	Regulatory Assets Current RegulatoryAssetsCurrent	18500000	USD
CY2017Q4	us-gaap	Regulatory Assets Noncurrent RegulatoryAssetsNoncurrent	283000000	USD
CY2018Q4	us-gaap	Regulatory Assets Noncurrent RegulatoryAssetsNoncurrent	285800000	USD
CY2017Q4	us-gaap	Regulatory Liability Current RegulatoryLiabilityCurrent	3900000	USD
CY2018Q4	us-gaap	Regulatory Liability Current RegulatoryLiabilityCurrent	36600000	USD
CY2017Q4	us-gaap	Regulatory Liability Noncurrent RegulatoryLiabilityNoncurrent	1283400000	USD
CY2018Q4	us-gaap	Regulatory Liability Noncurrent RegulatoryLiabilityNoncurrent	1270700000	USD
CY2016	us-gaap	Repayments Of Long Term Debt RepaymentsOfLongTermDebt	110200000	USD
CY2017	us-gaap	Repayments Of Long Term Debt RepaymentsOfLongTermDebt	225100000	USD
CY2018	us-gaap	Repayments Of Long Term Debt RepaymentsOfLongTermDebt	250100000	USD
CY2017Q4	us-gaap	Retained Earnings Accumulated Deficit RetainedEarningsAccumulatedDeficit	2759500000	USD
CY2018Q4	us-gaap	Retained Earnings Accumulated Deficit RetainedEarningsAccumulatedDeficit	2906300000	USD
CY2016	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	0	USD
CY2017	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	0	USD
CY2018	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	2211700000	USD
CY2016	us-gaap	Revenues Revenues	2259200000	USD
CY2017Q1	us-gaap	Revenues Revenues	456000000	USD
CY2017Q2	us-gaap	Revenues Revenues	586400000	USD
CY2017Q3	us-gaap	Revenues Revenues	716800000	USD
CY2017Q4	us-gaap	Revenues Revenues	501900000	USD
CY2017	us-gaap	Revenues Revenues	2261100000	USD
CY2018Q1	us-gaap	Revenues Revenues	492700000	USD
CY2018Q2	us-gaap	Revenues Revenues	567000000	USD
CY2018Q3	us-gaap	Revenues Revenues	698800000	USD
CY2018Q4	us-gaap	Revenues Revenues	511800000	USD
CY2018	us-gaap	Revenues Revenues	2270300000	USD
CY2016	us-gaap	Share Based Compensation ShareBasedCompensation	4700000	USD
CY2017	us-gaap	Share Based Compensation ShareBasedCompensation	9100000	USD
CY2018	us-gaap	Share Based Compensation ShareBasedCompensation	13400000	USD
CY2018Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Number Of Shares Authorized ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAuthorized	7400000	shares
CY2017Q4	us-gaap	Short Term Borrowings ShortTermBorrowings	168400000	USD
CY2018Q4	us-gaap	Short Term Borrowings ShortTermBorrowings	0	USD
CY2018Q4	us-gaap	Short Term Debt Weighted Average Interest Rate ShortTermDebtWeightedAverageInterestRate	0.0105
CY2017	us-gaap	Stock Issued During Period Value New Issues StockIssuedDuringPeriodValueNewIssues	-100000	USD
CY2018	us-gaap	Stock Issued During Period Value New Issues StockIssuedDuringPeriodValueNewIssues	-100000	USD
CY2017Q4	us-gaap	Stockholders Equity StockholdersEquity	3851100000	USD
CY2018Q4	us-gaap	Stockholders Equity StockholdersEquity	4005100000	USD
CY2015Q4	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	3326000000	USD
CY2016Q4	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	3443800000	USD
CY2017Q4	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	3851100000	USD
CY2018Q4	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	4005100000	USD
CY2016	us-gaap	Taxes Excluding Income And Excise Taxes TaxesExcludingIncomeAndExciseTaxes	87600000	USD
CY2017	us-gaap	Taxes Excluding Income And Excise Taxes TaxesExcludingIncomeAndExciseTaxes	89400000	USD
CY2018	us-gaap	Taxes Excluding Income And Excise Taxes TaxesExcludingIncomeAndExciseTaxes	92000000	USD
CY2017Q4	us-gaap	Taxes Payable Current TaxesPayableCurrent	44500000	USD
CY2018Q4	us-gaap	Taxes Payable Current TaxesPayableCurrent	44000000	USD
CY2017Q4	us-gaap	Unamortized Debt Issuance Expense UnamortizedDebtIssuanceExpense	-20800000	USD
CY2018Q4	us-gaap	Unamortized Debt Issuance Expense UnamortizedDebtIssuanceExpense	-22900000	USD
CY2017Q4	us-gaap	Unbilled Receivables Current UnbilledReceivablesCurrent	66500000	USD
CY2018Q4	us-gaap	Unbilled Receivables Current UnbilledReceivablesCurrent	62600000	USD
CY2015Q4	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	20200000	USD
CY2016Q4	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	20700000	USD
CY2017Q4	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	20700000	USD
CY2018Q4	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	20700000	USD
CY2018Q4	us-gaap	Unrecognized Tax Benefits Income Tax Penalties And Interest Accrued UnrecognizedTaxBenefitsIncomeTaxPenaltiesAndInterestAccrued	0	USD
CY2016	us-gaap	Unrecognized Tax Benefits Increases Resulting From Current Period Tax Positions UnrecognizedTaxBenefitsIncreasesResultingFromCurrentPeriodTaxPositions	500000	USD
CY2017	us-gaap	Unrecognized Tax Benefits Increases Resulting From Current Period Tax Positions UnrecognizedTaxBenefitsIncreasesResultingFromCurrentPeriodTaxPositions	0	USD
CY2018	us-gaap	Unrecognized Tax Benefits Increases Resulting From Current Period Tax Positions UnrecognizedTaxBenefitsIncreasesResultingFromCurrentPeriodTaxPositions	0	USD
CY2018Q4	us-gaap	Unrecorded Unconditional Purchase Obligation Balance On Fifth Anniversary UnrecordedUnconditionalPurchaseObligationBalanceOnFifthAnniversary	117000000	USD
CY2018Q4	us-gaap	Unrecorded Unconditional Purchase Obligation Balance On First Anniversary UnrecordedUnconditionalPurchaseObligationBalanceOnFirstAnniversary	198000000	USD
CY2018Q4	us-gaap	Unrecorded Unconditional Purchase Obligation Balance On Fourth Anniversary UnrecordedUnconditionalPurchaseObligationBalanceOnFourthAnniversary	104500000	USD
CY2018Q4	us-gaap	Unrecorded Unconditional Purchase Obligation Balance On Second Anniversary UnrecordedUnconditionalPurchaseObligationBalanceOnSecondAnniversary	104100000	USD
CY2018Q4	us-gaap	Unrecorded Unconditional Purchase Obligation Balance On Third Anniversary UnrecordedUnconditionalPurchaseObligationBalanceOnThirdAnniversary	104100000	USD
CY2018Q4	us-gaap	Unrecorded Unconditional Purchase Obligation Balance Sheet Amount UnrecordedUnconditionalPurchaseObligationBalanceSheetAmount	627700000	USD
CY2016	us-gaap	Utilities Operating Expense Purchased Power Under Long Term Contracts UtilitiesOperatingExpensePurchasedPowerUnderLongTermContracts	61000000	USD
CY2017	us-gaap	Utilities Operating Expense Purchased Power Under Long Term Contracts UtilitiesOperatingExpensePurchasedPowerUnderLongTermContracts	61100000	USD
CY2018	us-gaap	Utilities Operating Expense Purchased Power Under Long Term Contracts UtilitiesOperatingExpensePurchasedPowerUnderLongTermContracts	57600000	USD
CY2015Q4	us-gaap	Valuation Allowances And Reserves Balance ValuationAllowancesAndReservesBalance	1400000	USD
CY2016Q4	us-gaap	Valuation Allowances And Reserves Balance ValuationAllowancesAndReservesBalance	1500000	USD
CY2017Q4	us-gaap	Valuation Allowances And Reserves Balance ValuationAllowancesAndReservesBalance	1500000	USD
CY2018Q4	us-gaap	Valuation Allowances And Reserves Balance ValuationAllowancesAndReservesBalance	1700000	USD
CY2016	us-gaap	Valuation Allowances And Reserves Charged To Cost And Expense ValuationAllowancesAndReservesChargedToCostAndExpense	2500000	USD
CY2017	us-gaap	Valuation Allowances And Reserves Charged To Cost And Expense ValuationAllowancesAndReservesChargedToCostAndExpense	2600000	USD
CY2018	us-gaap	Valuation Allowances And Reserves Charged To Cost And Expense ValuationAllowancesAndReservesChargedToCostAndExpense	1600000	USD
CY2016	us-gaap	Valuation Allowances And Reserves Deductions ValuationAllowancesAndReservesDeductions	2400000	USD
CY2017	us-gaap	Valuation Allowances And Reserves Deductions ValuationAllowancesAndReservesDeductions	2600000	USD
CY2018	us-gaap	Valuation Allowances And Reserves Deductions ValuationAllowancesAndReservesDeductions	1400000	USD
CY2016	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	199900000	shares
CY2017	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	200000000	shares
CY2018	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	200500000	shares
CY2016	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	199700000	shares
CY2017	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	199700000	shares
CY2018	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	199700000	shares
CY2018	us-gaap	Reclassifications Reclassifications	<div style="font-family:Times New Roman;font-size:10pt;"><div style="line-height:120%;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;font-weight:bold;">Reclassifications</font></div><div style="line-height:120%;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br clear="none"/></font></div><div style="line-height:120%;text-align:justify;text-indent:48px;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">Certain prior-year amounts have been reclassified to conform to the current year presentation. </font><font style="font-family:inherit;font-size:10pt;"> </font></div><div style="line-height:120%;text-align:justify;text-indent:48px;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br clear="none"/></font></div><div style="line-height:120%;text-align:justify;text-indent:48px;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">Amounts for the</font><font style="font-family:inherit;font-size:10pt;"> </font><font style="font-family:inherit;font-size:10pt;">years ended December 31,</font><font style="font-family:inherit;font-size:10pt;"> </font><font style="font-family:inherit;font-size:10pt;">2017</font><font style="font-family:inherit;font-size:10pt;"> and </font><font style="font-family:inherit;font-size:10pt;">2016</font><font style="font-family:inherit;font-size:10pt;"> </font><font style="font-family:inherit;font-size:10pt;">have been adjusted for the reclassification of net periodic benefit cost components and the regulatory Pension tracker mechanism between Other Operation and Maintenance and Other Net Periodic Benefit Expense in</font><font style="font-family:inherit;font-size:10pt;"> the Company's Consolidated </font><font style="font-family:inherit;font-size:10pt;">Statements of Income to be consistent with the 2018 presentation due to</font><font style="font-family:inherit;font-size:10pt;"> the Company's </font><font style="font-family:inherit;font-size:10pt;">adoption of ASU 2017-07, "Improving the Presentation of Net Periodic Pension Cost and Net Periodic Postretirement Benefit Cost." Further discussion can be found in Note </font><font style="font-family:inherit;font-size:10pt;">12.</font></div></div>
CY2018	us-gaap	Use Of Estimates UseOfEstimates	<div style="font-family:Times New Roman;font-size:10pt;"><div style="line-height:120%;text-align:justify;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;font-weight:bold;">Use of Estimates</font><font style="font-family:inherit;font-size:10pt;font-weight:bold;"> </font></div><div style="line-height:120%;text-align:justify;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"> </font></div><div style="line-height:120%;text-align:justify;text-indent:48px;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;color:#000000;text-decoration:none;">In preparing the</font><font style="font-family:inherit;font-size:10pt;"> </font><font style="font-family:inherit;font-size:10pt;color:#000000;text-decoration:none;">Consolidated</font><font style="font-family:inherit;font-size:10pt;"> </font><font style="font-family:inherit;font-size:10pt;color:#000000;text-decoration:none;">Financial Statements, management is required to make estimates and assumptions that affect the reported amounts of assets and liabilities and disclosure of contingent assets and contingent liabilities at the date of the</font><font style="font-family:inherit;font-size:10pt;"> </font><font style="font-family:inherit;font-size:10pt;color:#000000;text-decoration:none;">Consolidated</font><font style="font-family:inherit;font-size:10pt;"> </font><font style="font-family:inherit;font-size:10pt;color:#000000;text-decoration:none;">Financial Statements and the reported amounts of revenues and expenses during the reporting period. Changes to these assumptions and estimates could have a material effect on</font><font style="font-family:inherit;font-size:10pt;"> </font><font style="font-family:inherit;font-size:10pt;color:#000000;text-decoration:none;">the Company's Consolidated</font><font style="font-family:inherit;font-size:10pt;"> </font><font style="font-family:inherit;font-size:10pt;color:#000000;text-decoration:none;">Financial Statements. However,</font><font style="font-family:inherit;font-size:10pt;"> </font><font style="font-family:inherit;font-size:10pt;color:#000000;text-decoration:none;">the Company</font><font style="font-family:inherit;font-size:10pt;"> </font><font style="font-family:inherit;font-size:10pt;color:#000000;text-decoration:none;">believes it has taken reasonable positions where assumptions and estimates are used in order to minimize the negative financial impact to</font><font style="font-family:inherit;font-size:10pt;"> </font><font style="font-family:inherit;font-size:10pt;color:#000000;text-decoration:none;">the Company</font><font style="font-family:inherit;font-size:10pt;"> </font><font style="font-family:inherit;font-size:10pt;color:#000000;text-decoration:none;">that could result if actual results vary from the assumptions and estimates. In management's opinion, the areas of</font><font style="font-family:inherit;font-size:10pt;"> </font><font style="font-family:inherit;font-size:10pt;color:#000000;text-decoration:none;">the Company</font><font style="font-family:inherit;font-size:10pt;"> </font><font style="font-family:inherit;font-size:10pt;color:#000000;text-decoration:none;">where the most significant judgment is exercised</font><font style="font-family:inherit;font-size:10pt;"> </font><font style="font-family:inherit;font-size:10pt;color:#000000;text-decoration:none;">includes the determination of Pension Plan assumptions,</font><font style="font-family:inherit;font-size:10pt;"> </font><font style="font-family:inherit;font-size:10pt;color:#000000;text-decoration:none;">income taxes,</font><font style="font-family:inherit;font-size:10pt;"> </font><font style="font-family:inherit;font-size:10pt;color:#000000;text-decoration:none;">contingency reserves, asset retirement obligations</font><font style="font-family:inherit;font-size:10pt;"> and </font><font style="font-family:inherit;font-size:10pt;color:#000000;text-decoration:none;">depreciable lives of property, plant and equipment</font><font style="font-family:inherit;font-size:10pt;">. </font><font style="font-family:inherit;font-size:10pt;color:#000000;text-decoration:none;">For the electric utility segment, significant judgment is also exercised in</font><font style="font-family:inherit;font-size:10pt;"> </font><font style="font-family:inherit;font-size:10pt;">the determination of</font><font style="font-family:inherit;font-size:10pt;"> </font><font style="font-family:inherit;font-size:10pt;">regulatory assets and liabilities and unbilled revenues</font><font style="font-family:inherit;font-size:10pt;">. </font></div></div>

Files In Submission

Name	View Source	Status
0001021635-19-000015-index-headers.html	Edgar Link	pending
0001021635-19-000015-index.html	Edgar Link	pending
0001021635-19-000015.txt	Edgar Link	pending
0001021635-19-000015-xbrl.zip	Edgar Link	pending
a2018ogeenergy10-k.htm	Edgar Link	pending
a2018ogeenergy10-kxex1012.htm	Edgar Link	pending
a2018ogeenergy10-kxex1013.htm	Edgar Link	pending
a2018ogeenergy10-kxex2101.htm	Edgar Link	pending
a2018ogeenergy10-kxex2301.htm	Edgar Link	pending
a2018ogeenergy10-kxex2302.htm	Edgar Link	pending
a2018ogeenergy10-kxex2401.htm	Edgar Link	pending
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$OGE
OGE Energy Corp Stock $oge

2018 Q4 Form 10-K Financial Statement

#000102163519000015 Filed on February 21, 2019

Income Statement

Balance Sheet

Cashflow Statement

Facts In Submission

Files In Submission

$OGE OGE Energy Corp Stock $oge

2018 Q4 Form 10-K Financial Statement

#000102163519000015 Filed on February 21, 2019

Income Statement

Balance Sheet

Cashflow Statement

Facts In Submission

Files In Submission

$OGE
OGE Energy Corp Stock $oge