10-K Filing

OGE ENERGY CORP. CIK: 1021635 FY 2024

Filing Information

Form Type	10-K
Accession Number	`0000950170-25-022560`
Period End Date	20241231
Filing Date	20250219
Fiscal Year	2024
Fiscal Period	FY
XBRL Instance	oge-20241231_htm.xml

Filing Contents

This filing contains the following financial statements:

Balance Sheet 186 Income Statement 168 Cash Flow Statement 226 Stockholders Equity 62 Comprehensive Income 66

Balance Sheet 186 line items

Line Item	Tag	Value	Unit	Period
Accounts Receivable, Allowance for Credit Loss	`AllowanceForDoubtfulAccountsReceivable`	$2.00M	USD	Point-in-time
Accounts Receivable, Allowance for Credit Loss	`AllowanceForDoubtfulAccountsReceivable`	$2.00M	USD	Point-in-time
Accounts Receivable, Allowance for Credit Loss	`AllowanceForDoubtfulAccountsReceivable`	$2.20M	USD	Point-in-time
Accounts Receivable, Allowance for Credit Loss	`AllowanceForDoubtfulAccountsReceivable`	$2.20M	USD	Point-in-time
Cash and cash equivalents	`CashAndCashEquivalentsAtCarryingValue`	$600.00K	USD	Point-in-time
Cash and cash equivalents	`CashAndCashEquivalentsAtCarryingValue`	$600.00K	USD	Point-in-time
Cash and cash equivalents	`CashAndCashEquivalentsAtCarryingValue`	$200.00K	USD	Point-in-time
Cash and cash equivalents	`CashAndCashEquivalentsAtCarryingValue`	$200.00K	USD	Point-in-time
Accounts receivable	`AccountsReceivableNetCurrent`	$208.80M	USD	Point-in-time
Accounts receivable	`AccountsReceivableNetCurrent`	$208.80M	USD	Point-in-time
Accounts receivable	`AccountsReceivableNetCurrent`	$240.60M	USD	Point-in-time
Accounts receivable	`AccountsReceivableNetCurrent`	$240.60M	USD	Point-in-time
Accrued unbilled revenues	`UnbilledReceivablesCurrent`	$74.60M	USD	Point-in-time
Accrued unbilled revenues	`UnbilledReceivablesCurrent`	$74.60M	USD	Point-in-time
Accrued unbilled revenues	`UnbilledReceivablesCurrent`	$72.70M	USD	Point-in-time
Accrued unbilled revenues	`UnbilledReceivablesCurrent`	$72.70M	USD	Point-in-time
Income taxes receivable	`IncomeTaxesReceivable`	$18.20M	USD	Point-in-time
Income taxes receivable	`IncomeTaxesReceivable`	$18.20M	USD	Point-in-time
Income taxes receivable	`IncomeTaxesReceivable`	-	USD	Point-in-time
Income taxes receivable	`IncomeTaxesReceivable`	-	USD	Point-in-time
Fuel inventories	`InventoryNet`	$158.50M	USD	Point-in-time
Fuel inventories	`InventoryNet`	$158.50M	USD	Point-in-time
Fuel inventories	`InventoryNet`	$148.30M	USD	Point-in-time
Fuel inventories	`InventoryNet`	$148.30M	USD	Point-in-time
Materials and supplies, at average cost	`OtherInventorySupplies`	$254.30M	USD	Point-in-time
Materials and supplies, at average cost	`OtherInventorySupplies`	$254.30M	USD	Point-in-time
Materials and supplies, at average cost	`OtherInventorySupplies`	$229.40M	USD	Point-in-time
Materials and supplies, at average cost	`OtherInventorySupplies`	$229.40M	USD	Point-in-time
Fuel clause under recoveries	`DeferredFuelCost`	$112.70M	USD	Point-in-time
Fuel clause under recoveries	`DeferredFuelCost`	$112.70M	USD	Point-in-time
Fuel clause under recoveries	`DeferredFuelCost`	-	USD	Point-in-time
Fuel clause under recoveries	`DeferredFuelCost`	-	USD	Point-in-time
Other	`OtherAssetsCurrent`	$88.90M	USD	Point-in-time
Other	`OtherAssetsCurrent`	$88.90M	USD	Point-in-time
Other	`OtherAssetsCurrent`	$58.80M	USD	Point-in-time
Other	`OtherAssetsCurrent`	$58.80M	USD	Point-in-time
Total current assets	`AssetsCurrent`	$895.10M	USD	Point-in-time
Total current assets	`AssetsCurrent`	$895.10M	USD	Point-in-time
Total current assets	`AssetsCurrent`	$771.50M	USD	Point-in-time
Total current assets	`AssetsCurrent`	$771.50M	USD	Point-in-time
Other	`OtherLongTermInvestments`	$124.20M	USD	Point-in-time
Other	`OtherLongTermInvestments`	$124.20M	USD	Point-in-time
Other	`OtherLongTermInvestments`	$114.00M	USD	Point-in-time
Other	`OtherLongTermInvestments`	$114.00M	USD	Point-in-time
Total other property and investments	`OtherInvestments`	$114.00M	USD	Point-in-time
Total other property and investments	`OtherInvestments`	$114.00M	USD	Point-in-time
Total other property and investments	`OtherInvestments`	$124.20M	USD	Point-in-time
Total other property and investments	`OtherInvestments`	$124.20M	USD	Point-in-time
In service	`PublicUtilitiesPropertyPlantAndEquipmentPlantInService`	$16.25B	USD	Point-in-time
In service	`PublicUtilitiesPropertyPlantAndEquipmentPlantInService`	$16.25B	USD	Point-in-time
In service	`PublicUtilitiesPropertyPlantAndEquipmentPlantInService`	$15.59B	USD	Point-in-time
In service	`PublicUtilitiesPropertyPlantAndEquipmentPlantInService`	$15.59B	USD	Point-in-time
Construction work in progress	`ConstructionInProgressGross`	$814.20M	USD	Point-in-time
Construction work in progress	`ConstructionInProgressGross`	$814.20M	USD	Point-in-time
Construction work in progress	`ConstructionInProgressGross`	$522.20M	USD	Point-in-time
Construction work in progress	`ConstructionInProgressGross`	$522.20M	USD	Point-in-time
Total property, plant and equipment	`PropertyPlantAndEquipmentGross`	$17.07B	USD	Point-in-time
Total property, plant and equipment	`PropertyPlantAndEquipmentGross`	$17.07B	USD	Point-in-time
Total property, plant and equipment	`PropertyPlantAndEquipmentGross`	$16.11B	USD	Point-in-time
Total property, plant and equipment	`PropertyPlantAndEquipmentGross`	$16.11B	USD	Point-in-time
Less: accumulated depreciation	`AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment`	$4.81B	USD	Point-in-time
Less: accumulated depreciation	`AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment`	$4.81B	USD	Point-in-time
Less: accumulated depreciation	`AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment`	$4.98B	USD	Point-in-time
Less: accumulated depreciation	`AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment`	$4.98B	USD	Point-in-time
Net property, plant and equipment	`PropertyPlantAndEquipmentNet`	$12.09B	USD	Point-in-time
Net property, plant and equipment	`PropertyPlantAndEquipmentNet`	$12.09B	USD	Point-in-time
Net property, plant and equipment	`PropertyPlantAndEquipmentNet`	$11.30B	USD	Point-in-time
Net property, plant and equipment	`PropertyPlantAndEquipmentNet`	$11.30B	USD	Point-in-time
Regulatory assets	`RegulatoryAssetsNoncurrent`	$568.10M	USD	Point-in-time
Regulatory assets	`RegulatoryAssetsNoncurrent`	$568.10M	USD	Point-in-time
Regulatory assets	`RegulatoryAssetsNoncurrent`	$577.60M	USD	Point-in-time
Regulatory assets	`RegulatoryAssetsNoncurrent`	$577.60M	USD	Point-in-time
Other	`OtherAssetsMiscellaneousNoncurrent`	$42.00M	USD	Point-in-time
Other	`OtherAssetsMiscellaneousNoncurrent`	$42.00M	USD	Point-in-time
Other	`OtherAssetsMiscellaneousNoncurrent`	$26.60M	USD	Point-in-time
Other	`OtherAssetsMiscellaneousNoncurrent`	$26.60M	USD	Point-in-time
Total deferred charges and other assets	`OtherAssetsNoncurrent`	$604.20M	USD	Point-in-time
Total deferred charges and other assets	`OtherAssetsNoncurrent`	$604.20M	USD	Point-in-time
Total deferred charges and other assets	`OtherAssetsNoncurrent`	$610.10M	USD	Point-in-time
Total deferred charges and other assets	`OtherAssetsNoncurrent`	$610.10M	USD	Point-in-time
TOTAL ASSETS	`Assets`	$13.72B	USD	Point-in-time
TOTAL ASSETS	`Assets`	$13.72B	USD	Point-in-time
TOTAL ASSETS	`Assets`	$12.79B	USD	Point-in-time
TOTAL ASSETS	`Assets`	$12.79B	USD	Point-in-time
TOTAL ASSETS	`Assets`	$12.54B	USD	Point-in-time
TOTAL ASSETS	`Assets`	$12.54B	USD	Point-in-time
Short-term debt	`ShortTermBorrowings`	$469.30M	USD	Point-in-time
Short-term debt	`ShortTermBorrowings`	$469.30M	USD	Point-in-time
Short-term debt	`ShortTermBorrowings`	$499.20M	USD	Point-in-time
Short-term debt	`ShortTermBorrowings`	$499.20M	USD	Point-in-time
Accounts payable	`AccountsPayableCurrent`	$305.70M	USD	Point-in-time
Accounts payable	`AccountsPayableCurrent`	$305.70M	USD	Point-in-time
Accounts payable	`AccountsPayableCurrent`	$276.40M	USD	Point-in-time
Accounts payable	`AccountsPayableCurrent`	$276.40M	USD	Point-in-time
Dividends payable	`DividendsPayableCurrent`	$84.70M	USD	Point-in-time
Dividends payable	`DividendsPayableCurrent`	$84.70M	USD	Point-in-time
Dividends payable	`DividendsPayableCurrent`	$83.80M	USD	Point-in-time
Dividends payable	`DividendsPayableCurrent`	$83.80M	USD	Point-in-time
Customer deposits	`ContractWithCustomerLiabilityCurrent`	$111.10M	USD	Point-in-time
Customer deposits	`ContractWithCustomerLiabilityCurrent`	$111.10M	USD	Point-in-time
Customer deposits	`ContractWithCustomerLiabilityCurrent`	$103.50M	USD	Point-in-time
Customer deposits	`ContractWithCustomerLiabilityCurrent`	$103.50M	USD	Point-in-time
Accrued taxes	`TaxesPayableCurrent`	$47.60M	USD	Point-in-time
Accrued taxes	`TaxesPayableCurrent`	$47.60M	USD	Point-in-time
Accrued taxes	`TaxesPayableCurrent`	$58.80M	USD	Point-in-time
Accrued taxes	`TaxesPayableCurrent`	$58.80M	USD	Point-in-time
Accrued interest	`InterestPayableCurrent`	$63.80M	USD	Point-in-time
Accrued interest	`InterestPayableCurrent`	$63.80M	USD	Point-in-time
Accrued interest	`InterestPayableCurrent`	$57.40M	USD	Point-in-time
Accrued interest	`InterestPayableCurrent`	$57.40M	USD	Point-in-time
Accrued compensation	`EmployeeRelatedLiabilitiesCurrent`	$53.00M	USD	Point-in-time
Accrued compensation	`EmployeeRelatedLiabilitiesCurrent`	$53.00M	USD	Point-in-time
Accrued compensation	`EmployeeRelatedLiabilitiesCurrent`	$46.80M	USD	Point-in-time
Accrued compensation	`EmployeeRelatedLiabilitiesCurrent`	$46.80M	USD	Point-in-time
Long-term debt due within one year	`LongTermDebtCurrent`	-	USD	Point-in-time
Long-term debt due within one year	`LongTermDebtCurrent`	-	USD	Point-in-time
Long-term debt due within one year	`LongTermDebtCurrent`	$32.40M	USD	Point-in-time
Long-term debt due within one year	`LongTermDebtCurrent`	$32.40M	USD	Point-in-time
Fuel clause over recoveries	`CustomerRefundLiabilityCurrent`	$9.30M	USD	Point-in-time
Fuel clause over recoveries	`CustomerRefundLiabilityCurrent`	$9.30M	USD	Point-in-time
Fuel clause over recoveries	`CustomerRefundLiabilityCurrent`	$20.50M	USD	Point-in-time
Fuel clause over recoveries	`CustomerRefundLiabilityCurrent`	$20.50M	USD	Point-in-time
Other	`OtherLiabilitiesCurrent`	$44.00M	USD	Point-in-time
Other	`OtherLiabilitiesCurrent`	$44.00M	USD	Point-in-time
Other	`OtherLiabilitiesCurrent`	$41.70M	USD	Point-in-time
Other	`OtherLiabilitiesCurrent`	$41.70M	USD	Point-in-time
Total current liabilities	`LiabilitiesCurrent`	$1.23B	USD	Point-in-time
Total current liabilities	`LiabilitiesCurrent`	$1.23B	USD	Point-in-time
Total current liabilities	`LiabilitiesCurrent`	$1.18B	USD	Point-in-time
Total current liabilities	`LiabilitiesCurrent`	$1.18B	USD	Point-in-time
LONG-TERM DEBT	`LongTermDebtNoncurrent`	$5.02B	USD	Point-in-time
LONG-TERM DEBT	`LongTermDebtNoncurrent`	$5.02B	USD	Point-in-time
LONG-TERM DEBT	`LongTermDebtNoncurrent`	$4.34B	USD	Point-in-time
LONG-TERM DEBT	`LongTermDebtNoncurrent`	$4.34B	USD	Point-in-time
Accrued benefit obligations	`PensionAndOtherPostretirementDefinedBenefitPlansLiabilitiesNoncurrent`	$172.70M	USD	Point-in-time
Accrued benefit obligations	`PensionAndOtherPostretirementDefinedBenefitPlansLiabilitiesNoncurrent`	$172.70M	USD	Point-in-time
Accrued benefit obligations	`PensionAndOtherPostretirementDefinedBenefitPlansLiabilitiesNoncurrent`	$170.90M	USD	Point-in-time
Accrued benefit obligations	`PensionAndOtherPostretirementDefinedBenefitPlansLiabilitiesNoncurrent`	$170.90M	USD	Point-in-time
Deferred income taxes	`DeferredIncomeTaxLiabilitiesNet`	$1.30B	USD	Point-in-time
Deferred income taxes	`DeferredIncomeTaxLiabilitiesNet`	$1.30B	USD	Point-in-time
Deferred income taxes	`DeferredIncomeTaxLiabilitiesNet`	$1.37B	USD	Point-in-time
Deferred income taxes	`DeferredIncomeTaxLiabilitiesNet`	$1.37B	USD	Point-in-time
Deferred investment tax credits	`AccumulatedDeferredInvestmentTaxCredit`	$10.60M	USD	Point-in-time
Deferred investment tax credits	`AccumulatedDeferredInvestmentTaxCredit`	$10.60M	USD	Point-in-time
Deferred investment tax credits	`AccumulatedDeferredInvestmentTaxCredit`	$11.30M	USD	Point-in-time
Deferred investment tax credits	`AccumulatedDeferredInvestmentTaxCredit`	$11.30M	USD	Point-in-time
Regulatory liabilities	`RegulatoryLiabilityNoncurrent`	$1.06B	USD	Point-in-time
Regulatory liabilities	`RegulatoryLiabilityNoncurrent`	$1.06B	USD	Point-in-time
Regulatory liabilities	`RegulatoryLiabilityNoncurrent`	$1.02B	USD	Point-in-time
Regulatory liabilities	`RegulatoryLiabilityNoncurrent`	$1.02B	USD	Point-in-time
Other	`OtherLiabilitiesNoncurrent`	$213.00M	USD	Point-in-time
Other	`OtherLiabilitiesNoncurrent`	$213.00M	USD	Point-in-time
Other	`OtherLiabilitiesNoncurrent`	$255.40M	USD	Point-in-time
Other	`OtherLiabilitiesNoncurrent`	$255.40M	USD	Point-in-time
Total deferred credits and other liabilities	`LiabilitiesOtherThanLongtermDebtNoncurrent`	$2.82B	USD	Point-in-time
Total deferred credits and other liabilities	`LiabilitiesOtherThanLongtermDebtNoncurrent`	$2.82B	USD	Point-in-time
Total deferred credits and other liabilities	`LiabilitiesOtherThanLongtermDebtNoncurrent`	$2.76B	USD	Point-in-time
Total deferred credits and other liabilities	`LiabilitiesOtherThanLongtermDebtNoncurrent`	$2.76B	USD	Point-in-time
Total liabilities	`Liabilities`	$9.08B	USD	Point-in-time
Total liabilities	`Liabilities`	$9.08B	USD	Point-in-time
Total liabilities	`Liabilities`	$8.28B	USD	Point-in-time
Total liabilities	`Liabilities`	$8.28B	USD	Point-in-time
COMMITMENTS AND CONTINGENCIES (NOTE 13)	`CommitmentsAndContingencies`	-	USD	Point-in-time
COMMITMENTS AND CONTINGENCIES (NOTE 13)	`CommitmentsAndContingencies`	-	USD	Point-in-time
COMMITMENTS AND CONTINGENCIES (NOTE 13)	`CommitmentsAndContingencies`	-	USD	Point-in-time
COMMITMENTS AND CONTINGENCIES (NOTE 13)	`CommitmentsAndContingencies`	-	USD	Point-in-time
Common stockholder's equity	`CommonStocksIncludingAdditionalPaidInCapital`	$1.17B	USD	Point-in-time
Common stockholder's equity	`CommonStocksIncludingAdditionalPaidInCapital`	$1.17B	USD	Point-in-time
Common stockholder's equity	`CommonStocksIncludingAdditionalPaidInCapital`	$1.15B	USD	Point-in-time
Common stockholder's equity	`CommonStocksIncludingAdditionalPaidInCapital`	$1.15B	USD	Point-in-time
Retained earnings	`RetainedEarningsAccumulatedDeficit`	$3.37B	USD	Point-in-time
Retained earnings	`RetainedEarningsAccumulatedDeficit`	$3.37B	USD	Point-in-time
Retained earnings	`RetainedEarningsAccumulatedDeficit`	$3.48B	USD	Point-in-time
Retained earnings	`RetainedEarningsAccumulatedDeficit`	$3.48B	USD	Point-in-time
Accumulated other comprehensive loss, net of tax	`AccumulatedOtherComprehensiveIncomeLossNetOfTax`	$-7.20M	USD	Point-in-time
Accumulated other comprehensive loss, net of tax	`AccumulatedOtherComprehensiveIncomeLossNetOfTax`	$-7.20M	USD	Point-in-time
Accumulated other comprehensive loss, net of tax	`AccumulatedOtherComprehensiveIncomeLossNetOfTax`	$-2.70M	USD	Point-in-time
Accumulated other comprehensive loss, net of tax	`AccumulatedOtherComprehensiveIncomeLossNetOfTax`	$-2.70M	USD	Point-in-time
Total stockholder's equity	`StockholdersEquity`	$4.51B	USD	Point-in-time
Total stockholder's equity	`StockholdersEquity`	$4.51B	USD	Point-in-time
Total stockholder's equity	`StockholdersEquity`	$4.64B	USD	Point-in-time
Total stockholder's equity	`StockholdersEquity`	$4.64B	USD	Point-in-time
TOTAL LIABILITIES AND STOCKHOLDER'S EQUITY	`LiabilitiesAndStockholdersEquity`	$12.79B	USD	Point-in-time
TOTAL LIABILITIES AND STOCKHOLDER'S EQUITY	`LiabilitiesAndStockholdersEquity`	$12.79B	USD	Point-in-time
TOTAL LIABILITIES AND STOCKHOLDER'S EQUITY	`LiabilitiesAndStockholdersEquity`	$13.72B	USD	Point-in-time
TOTAL LIABILITIES AND STOCKHOLDER'S EQUITY	`LiabilitiesAndStockholdersEquity`	$13.72B	USD	Point-in-time

Income Statement 168 line items

Line Item	Tag	Value	Unit	Period
Revenues from contracts with customers	`RevenueFromContractWithCustomerExcludingAssessedTax`	$2.61B	USD	Annual
Revenues from contracts with customers	`RevenueFromContractWithCustomerExcludingAssessedTax`	$2.61B	USD	Annual
Revenues from contracts with customers	`RevenueFromContractWithCustomerExcludingAssessedTax`	$2.92B	USD	Annual
Revenues from contracts with customers	`RevenueFromContractWithCustomerExcludingAssessedTax`	$2.92B	USD	Annual
Revenues from contracts with customers	`RevenueFromContractWithCustomerExcludingAssessedTax`	$3.30B	USD	Annual
Revenues from contracts with customers	`RevenueFromContractWithCustomerExcludingAssessedTax`	$3.30B	USD	Annual
Other revenues	`RevenuesfromAlternativeRevenuePrograms`	$67.00M	USD	Annual
Other revenues	`RevenuesfromAlternativeRevenuePrograms`	$67.00M	USD	Annual
Other revenues	`RevenuesfromAlternativeRevenuePrograms`	$68.70M	USD	Annual
Other revenues	`RevenuesfromAlternativeRevenuePrograms`	$68.70M	USD	Annual
Other revenues	`RevenuesfromAlternativeRevenuePrograms`	$71.50M	USD	Annual
Other revenues	`RevenuesfromAlternativeRevenuePrograms`	$71.50M	USD	Annual
Operating revenues	`Revenues`	$3.38B	USD	Annual
Operating revenues	`Revenues`	$3.38B	USD	Annual
Operating revenues	`Revenues`	$2.67B	USD	Annual
Operating revenues	`Revenues`	$2.67B	USD	Annual
Operating revenues	`Revenues`	$2.99B	USD	Annual
Operating revenues	`Revenues`	$2.99B	USD	Annual
FUEL, PURCHASED POWER AND DIRECT TRANSMISSION EXPENSE	`CostOfGoodsAndServicesSold`	$911.70M	USD	Annual
FUEL, PURCHASED POWER AND DIRECT TRANSMISSION EXPENSE	`CostOfGoodsAndServicesSold`	$911.70M	USD	Annual
FUEL, PURCHASED POWER AND DIRECT TRANSMISSION EXPENSE	`CostOfGoodsAndServicesSold`	$1.66B	USD	Annual
FUEL, PURCHASED POWER AND DIRECT TRANSMISSION EXPENSE	`CostOfGoodsAndServicesSold`	$1.66B	USD	Annual
FUEL, PURCHASED POWER AND DIRECT TRANSMISSION EXPENSE	`CostOfGoodsAndServicesSold`	$1.08B	USD	Annual
FUEL, PURCHASED POWER AND DIRECT TRANSMISSION EXPENSE	`CostOfGoodsAndServicesSold`	$1.08B	USD	Annual
Other operation and maintenance	`OtherCostAndExpenseOperating`	$501.40M	USD	Annual
Other operation and maintenance	`OtherCostAndExpenseOperating`	$501.40M	USD	Annual
Other operation and maintenance	`OtherCostAndExpenseOperating`	$514.40M	USD	Annual
Other operation and maintenance	`OtherCostAndExpenseOperating`	$514.40M	USD	Annual
Other operation and maintenance	`OtherCostAndExpenseOperating`	$502.60M	USD	Annual
Other operation and maintenance	`OtherCostAndExpenseOperating`	$502.60M	USD	Annual
Depreciation and amortization	`DepreciationAndAmortization`	$539.50M	USD	Annual
Depreciation and amortization	`DepreciationAndAmortization`	$539.50M	USD	Annual
Depreciation and amortization	`DepreciationAndAmortization`	$460.90M	USD	Annual
Depreciation and amortization	`DepreciationAndAmortization`	$460.90M	USD	Annual
Depreciation and amortization	`DepreciationAndAmortization`	$506.60M	USD	Annual
Depreciation and amortization	`DepreciationAndAmortization`	$506.60M	USD	Annual
Taxes other than income	`TaxesExcludingIncomeAndExciseTaxes`	$109.70M	USD	Annual
Taxes other than income	`TaxesExcludingIncomeAndExciseTaxes`	$109.70M	USD	Annual
Taxes other than income	`TaxesExcludingIncomeAndExciseTaxes`	$103.20M	USD	Annual
Taxes other than income	`TaxesExcludingIncomeAndExciseTaxes`	$103.20M	USD	Annual
Taxes other than income	`TaxesExcludingIncomeAndExciseTaxes`	$101.50M	USD	Annual
Taxes other than income	`TaxesExcludingIncomeAndExciseTaxes`	$101.50M	USD	Annual
Operating expenses	`OperatingExpenses`	$1.11B	USD	Annual
Operating expenses	`OperatingExpenses`	$1.11B	USD	Annual
Operating expenses	`OperatingExpenses`	$1.06B	USD	Annual
Operating expenses	`OperatingExpenses`	$1.06B	USD	Annual
Operating expenses	`OperatingExpenses`	$1.16B	USD	Annual
Operating expenses	`OperatingExpenses`	$1.16B	USD	Annual
OPERATING INCOME	`OperatingIncomeLoss`	$650.20M	USD	Annual
OPERATING INCOME	`OperatingIncomeLoss`	$650.20M	USD	Annual
OPERATING INCOME	`OperatingIncomeLoss`	$649.50M	USD	Annual
OPERATING INCOME	`OperatingIncomeLoss`	$649.50M	USD	Annual
OPERATING INCOME	`OperatingIncomeLoss`	$745.30M	USD	Annual
OPERATING INCOME	`OperatingIncomeLoss`	$745.30M	USD	Annual
Allowance for equity funds used during construction	`PublicUtilitiesAllowanceForFundsUsedDuringConstructionCapitalizedCostOfEquity`	$6.90M	USD	Annual
Allowance for equity funds used during construction	`PublicUtilitiesAllowanceForFundsUsedDuringConstructionCapitalizedCostOfEquity`	$6.90M	USD	Annual
Allowance for equity funds used during construction	`PublicUtilitiesAllowanceForFundsUsedDuringConstructionCapitalizedCostOfEquity`	$25.50M	USD	Annual
Allowance for equity funds used during construction	`PublicUtilitiesAllowanceForFundsUsedDuringConstructionCapitalizedCostOfEquity`	$25.50M	USD	Annual
Allowance for equity funds used during construction	`PublicUtilitiesAllowanceForFundsUsedDuringConstructionCapitalizedCostOfEquity`	$19.40M	USD	Annual
Allowance for equity funds used during construction	`PublicUtilitiesAllowanceForFundsUsedDuringConstructionCapitalizedCostOfEquity`	$19.40M	USD	Annual
Other net periodic benefit income (expense)	`PensionAndOtherPostretirementBenefitExpense`	$2.20M	USD	Annual
Other net periodic benefit income (expense)	`PensionAndOtherPostretirementBenefitExpense`	$2.20M	USD	Annual
Other net periodic benefit income (expense)	`PensionAndOtherPostretirementBenefitExpense`	$-5.60M	USD	Annual
Other net periodic benefit income (expense)	`PensionAndOtherPostretirementBenefitExpense`	$-5.60M	USD	Annual
Other net periodic benefit income (expense)	`PensionAndOtherPostretirementBenefitExpense`	$12.90M	USD	Annual
Other net periodic benefit income (expense)	`PensionAndOtherPostretirementBenefitExpense`	$12.90M	USD	Annual
Gain on equity securities (Note 1)	`EquitySecuritiesFvNiGainLoss`	-	USD	Annual
Gain on equity securities (Note 1)	`EquitySecuritiesFvNiGainLoss`	-	USD	Annual
Gain on equity securities (Note 1)	`EquitySecuritiesFvNiGainLoss`	-	USD	Annual
Gain on equity securities (Note 1)	`EquitySecuritiesFvNiGainLoss`	-	USD	Annual
Gain on equity securities (Note 1)	`EquitySecuritiesFvNiGainLoss`	$282.10M	USD	Annual
Gain on equity securities (Note 1)	`EquitySecuritiesFvNiGainLoss`	$282.10M	USD	Annual
Other income	`OtherNonoperatingIncome`	$48.20M	USD	Annual
Other income	`OtherNonoperatingIncome`	$48.20M	USD	Annual
Other income	`OtherNonoperatingIncome`	$74.60M	USD	Annual
Other income	`OtherNonoperatingIncome`	$74.60M	USD	Annual
Other income	`OtherNonoperatingIncome`	$30.60M	USD	Annual
Other income	`OtherNonoperatingIncome`	$30.60M	USD	Annual
Other expense	`OtherNonoperatingExpense`	$24.10M	USD	Annual
Other expense	`OtherNonoperatingExpense`	$24.10M	USD	Annual
Other expense	`OtherNonoperatingExpense`	$44.60M	USD	Annual
Other expense	`OtherNonoperatingExpense`	$44.60M	USD	Annual
Other expense	`OtherNonoperatingExpense`	$29.00M	USD	Annual
Other expense	`OtherNonoperatingExpense`	$29.00M	USD	Annual
Net other income	`NonoperatingIncomeExpense`	$44.20M	USD	Annual
Net other income	`NonoperatingIncomeExpense`	$44.20M	USD	Annual
Net other income	`NonoperatingIncomeExpense`	$29.80M	USD	Annual
Net other income	`NonoperatingIncomeExpense`	$29.80M	USD	Annual
Net other income	`NonoperatingIncomeExpense`	$306.10M	USD	Annual
Net other income	`NonoperatingIncomeExpense`	$306.10M	USD	Annual
Interest on long-term debt	`InterestExpenseLongTermDebt`	$228.30M	USD	Annual
Interest on long-term debt	`InterestExpenseLongTermDebt`	$228.30M	USD	Annual
Interest on long-term debt	`InterestExpenseLongTermDebt`	$162.10M	USD	Annual
Interest on long-term debt	`InterestExpenseLongTermDebt`	$162.10M	USD	Annual
Interest on long-term debt	`InterestExpenseLongTermDebt`	$205.00M	USD	Annual
Interest on long-term debt	`InterestExpenseLongTermDebt`	$205.00M	USD	Annual
Allowance for borrowed funds used during construction	`PublicUtilitiesAllowanceForFundsUsedDuringConstructionAdditions`	$14.60M	USD	Annual
Allowance for borrowed funds used during construction	`PublicUtilitiesAllowanceForFundsUsedDuringConstructionAdditions`	$14.60M	USD	Annual
Allowance for borrowed funds used during construction	`PublicUtilitiesAllowanceForFundsUsedDuringConstructionAdditions`	$7.10M	USD	Annual
Allowance for borrowed funds used during construction	`PublicUtilitiesAllowanceForFundsUsedDuringConstructionAdditions`	$7.10M	USD	Annual
Allowance for borrowed funds used during construction	`PublicUtilitiesAllowanceForFundsUsedDuringConstructionAdditions`	$4.00M	USD	Annual
Allowance for borrowed funds used during construction	`PublicUtilitiesAllowanceForFundsUsedDuringConstructionAdditions`	$4.00M	USD	Annual
Interest on short-term debt and other interest charges	`InterestExpenseShortTermBorrowings`	$40.80M	USD	Annual
Interest on short-term debt and other interest charges	`InterestExpenseShortTermBorrowings`	$40.80M	USD	Annual
Interest on short-term debt and other interest charges	`InterestExpenseShortTermBorrowings`	$23.50M	USD	Annual
Interest on short-term debt and other interest charges	`InterestExpenseShortTermBorrowings`	$23.50M	USD	Annual
Interest on short-term debt and other interest charges	`InterestExpenseShortTermBorrowings`	$8.20M	USD	Annual
Interest on short-term debt and other interest charges	`InterestExpenseShortTermBorrowings`	$8.20M	USD	Annual
Interest expense	`InterestExpense`	$166.30M	USD	Annual
Interest expense	`InterestExpense`	$166.30M	USD	Annual
Interest expense	`InterestExpense`	$254.50M	USD	Annual
Interest expense	`InterestExpense`	$254.50M	USD	Annual
Interest expense	`InterestExpense`	$221.40M	USD	Annual
Interest expense	`InterestExpense`	$221.40M	USD	Annual
INCOME BEFORE TAXES	`IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest`	$789.30M	USD	Annual
INCOME BEFORE TAXES	`IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest`	$789.30M	USD	Annual
INCOME BEFORE TAXES	`IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest`	$520.60M	USD	Annual
INCOME BEFORE TAXES	`IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest`	$520.60M	USD	Annual
INCOME BEFORE TAXES	`IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest`	$473.00M	USD	Annual
INCOME BEFORE TAXES	`IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest`	$473.00M	USD	Annual
INCOME TAX EXPENSE	`IncomeTaxExpenseBenefit`	$79.10M	USD	Annual
INCOME TAX EXPENSE	`IncomeTaxExpenseBenefit`	$79.10M	USD	Annual
INCOME TAX EXPENSE	`IncomeTaxExpenseBenefit`	$56.20M	USD	Annual
INCOME TAX EXPENSE	`IncomeTaxExpenseBenefit`	$56.20M	USD	Annual
INCOME TAX EXPENSE	`IncomeTaxExpenseBenefit`	$123.60M	USD	Annual
INCOME TAX EXPENSE	`IncomeTaxExpenseBenefit`	$123.60M	USD	Annual
NET INCOME	`NetIncomeLoss`	$416.80M	USD	Annual
NET INCOME	`NetIncomeLoss`	$416.80M	USD	Annual
NET INCOME	`NetIncomeLoss`	$441.50M	USD	Annual
NET INCOME	`NetIncomeLoss`	$441.50M	USD	Annual
NET INCOME	`NetIncomeLoss`	$665.70M	USD	Annual
NET INCOME	`NetIncomeLoss`	$665.70M	USD	Annual
BASIC AVERAGE COMMON SHARES OUTSTANDING	`WeightedAverageNumberOfSharesOutstandingBasic`	200.20M	shares	Annual
BASIC AVERAGE COMMON SHARES OUTSTANDING	`WeightedAverageNumberOfSharesOutstandingBasic`	200.20M	shares	Annual
BASIC AVERAGE COMMON SHARES OUTSTANDING	`WeightedAverageNumberOfSharesOutstandingBasic`	200.80M	shares	Annual
BASIC AVERAGE COMMON SHARES OUTSTANDING	`WeightedAverageNumberOfSharesOutstandingBasic`	200.80M	shares	Annual
BASIC AVERAGE COMMON SHARES OUTSTANDING	`WeightedAverageNumberOfSharesOutstandingBasic`	200.30M	shares	Annual
BASIC AVERAGE COMMON SHARES OUTSTANDING	`WeightedAverageNumberOfSharesOutstandingBasic`	200.30M	shares	Annual
DILUTED AVERAGE COMMON SHARES OUTSTANDING	`WeightedAverageNumberOfDilutedSharesOutstanding`	200.80M	shares	Annual
DILUTED AVERAGE COMMON SHARES OUTSTANDING	`WeightedAverageNumberOfDilutedSharesOutstanding`	200.80M	shares	Annual
DILUTED AVERAGE COMMON SHARES OUTSTANDING	`WeightedAverageNumberOfDilutedSharesOutstanding`	201.30M	shares	Annual
DILUTED AVERAGE COMMON SHARES OUTSTANDING	`WeightedAverageNumberOfDilutedSharesOutstanding`	201.30M	shares	Annual
DILUTED AVERAGE COMMON SHARES OUTSTANDING	`WeightedAverageNumberOfDilutedSharesOutstanding`	200.90M	shares	Annual
DILUTED AVERAGE COMMON SHARES OUTSTANDING	`WeightedAverageNumberOfDilutedSharesOutstanding`	200.90M	shares	Annual
BASIC EARNINGS PER AVERAGE COMMON SHARE	`EarningsPerShareBasic`	$2.08	USD	Annual
BASIC EARNINGS PER AVERAGE COMMON SHARE	`EarningsPerShareBasic`	$2.08	USD	Annual
BASIC EARNINGS PER AVERAGE COMMON SHARE	`EarningsPerShareBasic`	$2.20	USD	Annual
BASIC EARNINGS PER AVERAGE COMMON SHARE	`EarningsPerShareBasic`	$2.20	USD	Annual
BASIC EARNINGS PER AVERAGE COMMON SHARE	`EarningsPerShareBasic`	$3.33	USD	Annual
BASIC EARNINGS PER AVERAGE COMMON SHARE	`EarningsPerShareBasic`	$3.33	USD	Annual
DILUTED EARNINGS PER AVERAGE COMMON SHARE	`EarningsPerShareDiluted`	$3.32	USD	Annual
DILUTED EARNINGS PER AVERAGE COMMON SHARE	`EarningsPerShareDiluted`	$3.32	USD	Annual
DILUTED EARNINGS PER AVERAGE COMMON SHARE	`EarningsPerShareDiluted`	$2.19	USD	Annual
DILUTED EARNINGS PER AVERAGE COMMON SHARE	`EarningsPerShareDiluted`	$2.19	USD	Annual
DILUTED EARNINGS PER AVERAGE COMMON SHARE	`EarningsPerShareDiluted`	$2.07	USD	Annual
DILUTED EARNINGS PER AVERAGE COMMON SHARE	`EarningsPerShareDiluted`	$2.07	USD	Annual
Other comprehensive income, net of tax	`OtherComprehensiveIncomeLossNetOfTax`	$4.50M	USD	Annual
Other comprehensive income, net of tax	`OtherComprehensiveIncomeLossNetOfTax`	$4.50M	USD	Annual
Other comprehensive income, net of tax	`OtherComprehensiveIncomeLossNetOfTax`	$4.70M	USD	Annual
Other comprehensive income, net of tax	`OtherComprehensiveIncomeLossNetOfTax`	$4.70M	USD	Annual
Other comprehensive income, net of tax	`OtherComprehensiveIncomeLossNetOfTax`	$12.90M	USD	Annual
Other comprehensive income, net of tax	`OtherComprehensiveIncomeLossNetOfTax`	$12.90M	USD	Annual
Comprehensive income	`ComprehensiveIncomeNetOfTax`	$678.60M	USD	Annual
Comprehensive income	`ComprehensiveIncomeNetOfTax`	$678.60M	USD	Annual
Comprehensive income	`ComprehensiveIncomeNetOfTax`	$421.50M	USD	Annual
Comprehensive income	`ComprehensiveIncomeNetOfTax`	$421.50M	USD	Annual
Comprehensive income	`ComprehensiveIncomeNetOfTax`	$446.00M	USD	Annual
Comprehensive income	`ComprehensiveIncomeNetOfTax`	$446.00M	USD	Annual

Cash Flow Statement 226 line items

Line Item	Tag	Value	Unit	Period
Interest costs capitalized	`InterestCostsCapitalized`	$4.00M	USD	Annual
Interest costs capitalized	`InterestCostsCapitalized`	$4.00M	USD	Annual
Interest costs capitalized	`InterestCostsCapitalized`	$14.60M	USD	Annual
Interest costs capitalized	`InterestCostsCapitalized`	$14.60M	USD	Annual
Interest costs capitalized	`InterestCostsCapitalized`	$7.10M	USD	Annual
Interest costs capitalized	`InterestCostsCapitalized`	$7.10M	USD	Annual
Net income	`ProfitLoss`	$665.70M	USD	Annual
Net income	`ProfitLoss`	$665.70M	USD	Annual
Net income	`ProfitLoss`	$441.50M	USD	Annual
Net income	`ProfitLoss`	$441.50M	USD	Annual
Net income	`ProfitLoss`	$416.80M	USD	Annual
Net income	`ProfitLoss`	$416.80M	USD	Annual
Depreciation and amortization	`DepreciationAmortizationAndAccretionNet`	$460.90M	USD	Annual
Depreciation and amortization	`DepreciationAmortizationAndAccretionNet`	$460.90M	USD	Annual
Depreciation and amortization	`DepreciationAmortizationAndAccretionNet`	$539.50M	USD	Annual
Depreciation and amortization	`DepreciationAmortizationAndAccretionNet`	$539.50M	USD	Annual
Depreciation and amortization	`DepreciationAmortizationAndAccretionNet`	$506.60M	USD	Annual
Depreciation and amortization	`DepreciationAmortizationAndAccretionNet`	$506.60M	USD	Annual
Deferred income taxes and other tax credits, net	`DeferredIncomeTaxesAndTaxCredits`	$15.60M	USD	Annual
Deferred income taxes and other tax credits, net	`DeferredIncomeTaxesAndTaxCredits`	$15.60M	USD	Annual
Deferred income taxes and other tax credits, net	`DeferredIncomeTaxesAndTaxCredits`	$11.60M	USD	Annual
Deferred income taxes and other tax credits, net	`DeferredIncomeTaxesAndTaxCredits`	$11.60M	USD	Annual
Deferred income taxes and other tax credits, net	`DeferredIncomeTaxesAndTaxCredits`	$-154.00M	USD	Annual
Deferred income taxes and other tax credits, net	`DeferredIncomeTaxesAndTaxCredits`	$-154.00M	USD	Annual
Gain on investment in equity securities (Note 1)	`EquitySecuritiesFvNiGainLoss`	-	USD	Annual
Gain on investment in equity securities (Note 1)	`EquitySecuritiesFvNiGainLoss`	-	USD	Annual
Gain on investment in equity securities (Note 1)	`EquitySecuritiesFvNiGainLoss`	-	USD	Annual
Gain on investment in equity securities (Note 1)	`EquitySecuritiesFvNiGainLoss`	-	USD	Annual
Gain on investment in equity securities (Note 1)	`EquitySecuritiesFvNiGainLoss`	$282.10M	USD	Annual
Gain on investment in equity securities (Note 1)	`EquitySecuritiesFvNiGainLoss`	$282.10M	USD	Annual
Allowance for equity funds used during construction	`PublicUtilitiesAllowanceForFundsUsedDuringConstructionCapitalizedCostOfEquity`	$6.90M	USD	Annual
Allowance for equity funds used during construction	`PublicUtilitiesAllowanceForFundsUsedDuringConstructionCapitalizedCostOfEquity`	$6.90M	USD	Annual
Allowance for equity funds used during construction	`PublicUtilitiesAllowanceForFundsUsedDuringConstructionCapitalizedCostOfEquity`	$25.50M	USD	Annual
Allowance for equity funds used during construction	`PublicUtilitiesAllowanceForFundsUsedDuringConstructionCapitalizedCostOfEquity`	$25.50M	USD	Annual
Allowance for equity funds used during construction	`PublicUtilitiesAllowanceForFundsUsedDuringConstructionCapitalizedCostOfEquity`	$19.40M	USD	Annual
Allowance for equity funds used during construction	`PublicUtilitiesAllowanceForFundsUsedDuringConstructionCapitalizedCostOfEquity`	$19.40M	USD	Annual
Stock-based compensation expense	`ShareBasedCompensation`	$9.70M	USD	Annual
Stock-based compensation expense	`ShareBasedCompensation`	$9.70M	USD	Annual
Stock-based compensation expense	`ShareBasedCompensation`	$11.70M	USD	Annual
Stock-based compensation expense	`ShareBasedCompensation`	$11.70M	USD	Annual
Stock-based compensation expense	`ShareBasedCompensation`	$13.10M	USD	Annual
Stock-based compensation expense	`ShareBasedCompensation`	$13.10M	USD	Annual
Regulatory assets	`IncreaseDecreaseInOtherRegulatoryAssets`	$52.40M	USD	Annual
Regulatory assets	`IncreaseDecreaseInOtherRegulatoryAssets`	$52.40M	USD	Annual
Regulatory assets	`IncreaseDecreaseInOtherRegulatoryAssets`	$92.10M	USD	Annual
Regulatory assets	`IncreaseDecreaseInOtherRegulatoryAssets`	$92.10M	USD	Annual
Regulatory assets	`IncreaseDecreaseInOtherRegulatoryAssets`	$-702.20M	USD	Annual
Regulatory assets	`IncreaseDecreaseInOtherRegulatoryAssets`	$-702.20M	USD	Annual
Regulatory liabilities	`IncreaseDecreaseInRegulatoryLiabilities`	$-2.80M	USD	Annual
Regulatory liabilities	`IncreaseDecreaseInRegulatoryLiabilities`	$-2.80M	USD	Annual
Regulatory liabilities	`IncreaseDecreaseInRegulatoryLiabilities`	$-12.20M	USD	Annual
Regulatory liabilities	`IncreaseDecreaseInRegulatoryLiabilities`	$-12.20M	USD	Annual
Regulatory liabilities	`IncreaseDecreaseInRegulatoryLiabilities`	$-9.10M	USD	Annual
Regulatory liabilities	`IncreaseDecreaseInRegulatoryLiabilities`	$-9.10M	USD	Annual
Other assets	`IncreaseDecreaseInOtherNoncurrentAssets`	$-18.90M	USD	Annual
Other assets	`IncreaseDecreaseInOtherNoncurrentAssets`	$-18.90M	USD	Annual
Other assets	`IncreaseDecreaseInOtherNoncurrentAssets`	-	USD	Annual
Other assets	`IncreaseDecreaseInOtherNoncurrentAssets`	-	USD	Annual
Other assets	`IncreaseDecreaseInOtherNoncurrentAssets`	$16.80M	USD	Annual
Other assets	`IncreaseDecreaseInOtherNoncurrentAssets`	$16.80M	USD	Annual
Other liabilities	`IncreaseDecreaseInOtherNoncurrentLiabilities`	$-6.60M	USD	Annual
Other liabilities	`IncreaseDecreaseInOtherNoncurrentLiabilities`	$-6.60M	USD	Annual
Other liabilities	`IncreaseDecreaseInOtherNoncurrentLiabilities`	$30.60M	USD	Annual
Other liabilities	`IncreaseDecreaseInOtherNoncurrentLiabilities`	$30.60M	USD	Annual
Other liabilities	`IncreaseDecreaseInOtherNoncurrentLiabilities`	$5.00M	USD	Annual
Other liabilities	`IncreaseDecreaseInOtherNoncurrentLiabilities`	$5.00M	USD	Annual
Accounts receivable and accrued unbilled revenues, net	`IncreaseDecreaseInAccountsReceivable`	$-42.80M	USD	Annual
Accounts receivable and accrued unbilled revenues, net	`IncreaseDecreaseInAccountsReceivable`	$-42.80M	USD	Annual
Accounts receivable and accrued unbilled revenues, net	`IncreaseDecreaseInAccountsReceivable`	$33.60M	USD	Annual
Accounts receivable and accrued unbilled revenues, net	`IncreaseDecreaseInAccountsReceivable`	$33.60M	USD	Annual
Accounts receivable and accrued unbilled revenues, net	`IncreaseDecreaseInAccountsReceivable`	$97.00M	USD	Annual
Accounts receivable and accrued unbilled revenues, net	`IncreaseDecreaseInAccountsReceivable`	$97.00M	USD	Annual
Income taxes receivable	`IncreaseDecreaseInIncomeTaxesReceivable`	$-2.50M	USD	Annual
Income taxes receivable	`IncreaseDecreaseInIncomeTaxesReceivable`	$-2.50M	USD	Annual
Income taxes receivable	`IncreaseDecreaseInIncomeTaxesReceivable`	$-18.20M	USD	Annual
Income taxes receivable	`IncreaseDecreaseInIncomeTaxesReceivable`	$-18.20M	USD	Annual
Income taxes receivable	`IncreaseDecreaseInIncomeTaxesReceivable`	$18.10M	USD	Annual
Income taxes receivable	`IncreaseDecreaseInIncomeTaxesReceivable`	$18.10M	USD	Annual
Fuel, materials and supplies inventories	`IncreaseDecreaseInInventories`	$130.10M	USD	Annual
Fuel, materials and supplies inventories	`IncreaseDecreaseInInventories`	$130.10M	USD	Annual
Fuel, materials and supplies inventories	`IncreaseDecreaseInInventories`	$122.80M	USD	Annual
Fuel, materials and supplies inventories	`IncreaseDecreaseInInventories`	$122.80M	USD	Annual
Fuel, materials and supplies inventories	`IncreaseDecreaseInInventories`	$-25.70M	USD	Annual
Fuel, materials and supplies inventories	`IncreaseDecreaseInInventories`	$-25.70M	USD	Annual
Fuel recoveries	`IncreaseDecreaseInDeferredFuelCosts`	$363.00M	USD	Annual
Fuel recoveries	`IncreaseDecreaseInDeferredFuelCosts`	$363.00M	USD	Annual
Fuel recoveries	`IncreaseDecreaseInDeferredFuelCosts`	$123.90M	USD	Annual
Fuel recoveries	`IncreaseDecreaseInDeferredFuelCosts`	$123.90M	USD	Annual
Fuel recoveries	`IncreaseDecreaseInDeferredFuelCosts`	$-535.40M	USD	Annual
Fuel recoveries	`IncreaseDecreaseInDeferredFuelCosts`	$-535.40M	USD	Annual
Other current assets	`IncreaseDecreaseInOtherCurrentAssets`	$30.10M	USD	Annual
Other current assets	`IncreaseDecreaseInOtherCurrentAssets`	$30.10M	USD	Annual
Other current assets	`IncreaseDecreaseInOtherCurrentAssets`	$-44.60M	USD	Annual
Other current assets	`IncreaseDecreaseInOtherCurrentAssets`	$-44.60M	USD	Annual
Other current assets	`IncreaseDecreaseInOtherCurrentAssets`	$30.20M	USD	Annual
Other current assets	`IncreaseDecreaseInOtherCurrentAssets`	$30.20M	USD	Annual
Accounts payable	`IncreaseDecreaseInAccountsPayable`	$155.40M	USD	Annual
Accounts payable	`IncreaseDecreaseInAccountsPayable`	$155.40M	USD	Annual
Accounts payable	`IncreaseDecreaseInAccountsPayable`	$-136.30M	USD	Annual
Accounts payable	`IncreaseDecreaseInAccountsPayable`	$-136.30M	USD	Annual
Accounts payable	`IncreaseDecreaseInAccountsPayable`	$-14.70M	USD	Annual
Accounts payable	`IncreaseDecreaseInAccountsPayable`	$-14.70M	USD	Annual
Other current liabilities	`IncreaseDecreaseInOtherCurrentLiabilities`	$36.70M	USD	Annual
Other current liabilities	`IncreaseDecreaseInOtherCurrentLiabilities`	$36.70M	USD	Annual
Other current liabilities	`IncreaseDecreaseInOtherCurrentLiabilities`	$29.80M	USD	Annual
Other current liabilities	`IncreaseDecreaseInOtherCurrentLiabilities`	$29.80M	USD	Annual
Other current liabilities	`IncreaseDecreaseInOtherCurrentLiabilities`	$36.70M	USD	Annual
Other current liabilities	`IncreaseDecreaseInOtherCurrentLiabilities`	$36.70M	USD	Annual
Net cash provided from operating activities	`NetCashProvidedByUsedInOperatingActivities`	$952.40M	USD	Annual
Net cash provided from operating activities	`NetCashProvidedByUsedInOperatingActivities`	$952.40M	USD	Annual
Net cash provided from operating activities	`NetCashProvidedByUsedInOperatingActivities`	$812.80M	USD	Annual
Net cash provided from operating activities	`NetCashProvidedByUsedInOperatingActivities`	$812.80M	USD	Annual
Net cash provided from operating activities	`NetCashProvidedByUsedInOperatingActivities`	$1.23B	USD	Annual
Net cash provided from operating activities	`NetCashProvidedByUsedInOperatingActivities`	$1.23B	USD	Annual
Capital expenditures (less allowance for equity funds used during construction)	`PaymentsToAcquireProductiveAssets`	$1.18B	USD	Annual
Capital expenditures (less allowance for equity funds used during construction)	`PaymentsToAcquireProductiveAssets`	$1.18B	USD	Annual
Capital expenditures (less allowance for equity funds used during construction)	`PaymentsToAcquireProductiveAssets`	$1.09B	USD	Annual
Capital expenditures (less allowance for equity funds used during construction)	`PaymentsToAcquireProductiveAssets`	$1.09B	USD	Annual
Capital expenditures (less allowance for equity funds used during construction)	`PaymentsToAcquireProductiveAssets`	$1.05B	USD	Annual
Capital expenditures (less allowance for equity funds used during construction)	`PaymentsToAcquireProductiveAssets`	$1.05B	USD	Annual
Proceeds from Sale of Equity Securities, FV-NI	`ProceedsFromSaleOfEquitySecuritiesFvNi`	-	USD	Annual
Proceeds from Sale of Equity Securities, FV-NI	`ProceedsFromSaleOfEquitySecuritiesFvNi`	-	USD	Annual
Proceeds from Sale of Equity Securities, FV-NI	`ProceedsFromSaleOfEquitySecuritiesFvNi`	$1.07B	USD	Annual
Proceeds from Sale of Equity Securities, FV-NI	`ProceedsFromSaleOfEquitySecuritiesFvNi`	$1.07B	USD	Annual
Proceeds from Sale of Equity Securities, FV-NI	`ProceedsFromSaleOfEquitySecuritiesFvNi`	-	USD	Annual
Proceeds from Sale of Equity Securities, FV-NI	`ProceedsFromSaleOfEquitySecuritiesFvNi`	-	USD	Annual
Cost of removal and other	`CostOfRemovalAndOther`	$70.30M	USD	Annual
Cost of removal and other	`CostOfRemovalAndOther`	$70.30M	USD	Annual
Cost of removal and other	`CostOfRemovalAndOther`	$112.70M	USD	Annual
Cost of removal and other	`CostOfRemovalAndOther`	$112.70M	USD	Annual
Cost of removal and other	`CostOfRemovalAndOther`	$93.90M	USD	Annual
Cost of removal and other	`CostOfRemovalAndOther`	$93.90M	USD	Annual
Net cash used in investing activities	`NetCashProvidedByUsedInInvestingActivities`	$-1.16B	USD	Annual
Net cash used in investing activities	`NetCashProvidedByUsedInInvestingActivities`	$-1.16B	USD	Annual
Net cash used in investing activities	`NetCashProvidedByUsedInInvestingActivities`	$-96.40M	USD	Annual
Net cash used in investing activities	`NetCashProvidedByUsedInInvestingActivities`	$-96.40M	USD	Annual
Net cash used in investing activities	`NetCashProvidedByUsedInInvestingActivities`	$-1.27B	USD	Annual
Net cash used in investing activities	`NetCashProvidedByUsedInInvestingActivities`	$-1.27B	USD	Annual
Proceeds from long-term debt	`ProceedsFromIssuanceOfLongTermDebt`	$49.30M	USD	Annual
Proceeds from long-term debt	`ProceedsFromIssuanceOfLongTermDebt`	$49.30M	USD	Annual
Proceeds from long-term debt	`ProceedsFromIssuanceOfLongTermDebt`	$706.30M	USD	Annual
Proceeds from long-term debt	`ProceedsFromIssuanceOfLongTermDebt`	$706.30M	USD	Annual
Proceeds from long-term debt	`ProceedsFromIssuanceOfLongTermDebt`	$788.30M	USD	Annual
Proceeds from long-term debt	`ProceedsFromIssuanceOfLongTermDebt`	$788.30M	USD	Annual
Payment of long-term debt	`RepaymentsOfLongTermDebt`	$1.00B	USD	Annual
Payment of long-term debt	`RepaymentsOfLongTermDebt`	$1.00B	USD	Annual
Payment of long-term debt	`RepaymentsOfLongTermDebt`	$100.00K	USD	Annual
Payment of long-term debt	`RepaymentsOfLongTermDebt`	$100.00K	USD	Annual
Payment of long-term debt	`RepaymentsOfLongTermDebt`	$100.00K	USD	Annual
Payment of long-term debt	`RepaymentsOfLongTermDebt`	$100.00K	USD	Annual
(Decrease) increase in short-term debt	`ProceedsFromRepaymentsOfShortTermDebt`	$-486.90M	USD	Annual
(Decrease) increase in short-term debt	`ProceedsFromRepaymentsOfShortTermDebt`	$-486.90M	USD	Annual
(Decrease) increase in short-term debt	`ProceedsFromRepaymentsOfShortTermDebt`	$-29.90M	USD	Annual
(Decrease) increase in short-term debt	`ProceedsFromRepaymentsOfShortTermDebt`	$-29.90M	USD	Annual
(Decrease) increase in short-term debt	`ProceedsFromRepaymentsOfShortTermDebt`	$499.20M	USD	Annual
(Decrease) increase in short-term debt	`ProceedsFromRepaymentsOfShortTermDebt`	$499.20M	USD	Annual
Dividends paid on common stock	`PaymentsOfDividendsCommonStock`	$329.30M	USD	Annual
Dividends paid on common stock	`PaymentsOfDividendsCommonStock`	$329.30M	USD	Annual
Dividends paid on common stock	`PaymentsOfDividendsCommonStock`	$338.50M	USD	Annual
Dividends paid on common stock	`PaymentsOfDividendsCommonStock`	$338.50M	USD	Annual
Dividends paid on common stock	`PaymentsOfDividendsCommonStock`	$333.20M	USD	Annual
Dividends paid on common stock	`PaymentsOfDividendsCommonStock`	$333.20M	USD	Annual
Cash paid for employee equity-based compensation	`ProceedsFromIssuanceOfSharesUnderIncentiveAndShareBasedCompensationPlansIncludingStockOptions`	$6.10M	USD	Annual
Cash paid for employee equity-based compensation	`ProceedsFromIssuanceOfSharesUnderIncentiveAndShareBasedCompensationPlansIncludingStockOptions`	$6.10M	USD	Annual
Cash paid for employee equity-based compensation	`ProceedsFromIssuanceOfSharesUnderIncentiveAndShareBasedCompensationPlansIncludingStockOptions`	$900.00K	USD	Annual
Cash paid for employee equity-based compensation	`ProceedsFromIssuanceOfSharesUnderIncentiveAndShareBasedCompensationPlansIncludingStockOptions`	$900.00K	USD	Annual
Cash paid for employee equity-based compensation	`ProceedsFromIssuanceOfSharesUnderIncentiveAndShareBasedCompensationPlansIncludingStockOptions`	$2.30M	USD	Annual
Cash paid for employee equity-based compensation	`ProceedsFromIssuanceOfSharesUnderIncentiveAndShareBasedCompensationPlansIncludingStockOptions`	$2.30M	USD	Annual
Proceeds (costs) from issuance of common stock	`ProceedsFromIssuanceOfCommonStock`	$17.10M	USD	Annual
Proceeds (costs) from issuance of common stock	`ProceedsFromIssuanceOfCommonStock`	$17.10M	USD	Annual
Proceeds (costs) from issuance of common stock	`ProceedsFromIssuanceOfCommonStock`	-	USD	Annual
Proceeds (costs) from issuance of common stock	`ProceedsFromIssuanceOfCommonStock`	-	USD	Annual
Proceeds (costs) from issuance of common stock	`ProceedsFromIssuanceOfCommonStock`	-	USD	Annual
Proceeds (costs) from issuance of common stock	`ProceedsFromIssuanceOfCommonStock`	-	USD	Annual
Net cash provided from (used in) financing activities	`NetCashProvidedByUsedInFinancingActivities`	$348.80M	USD	Annual
Net cash provided from (used in) financing activities	`NetCashProvidedByUsedInFinancingActivities`	$348.80M	USD	Annual
Net cash provided from (used in) financing activities	`NetCashProvidedByUsedInFinancingActivities`	$-48.10M	USD	Annual
Net cash provided from (used in) financing activities	`NetCashProvidedByUsedInFinancingActivities`	$-48.10M	USD	Annual
Net cash provided from (used in) financing activities	`NetCashProvidedByUsedInFinancingActivities`	$-767.90M	USD	Annual
Net cash provided from (used in) financing activities	`NetCashProvidedByUsedInFinancingActivities`	$-767.90M	USD	Annual
NET CHANGE IN CASH AND CASH EQUIVALENTS	`CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect`	$-87.90M	USD	Annual
NET CHANGE IN CASH AND CASH EQUIVALENTS	`CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect`	$-87.90M	USD	Annual
NET CHANGE IN CASH AND CASH EQUIVALENTS	`CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect`	$400.00K	USD	Annual
NET CHANGE IN CASH AND CASH EQUIVALENTS	`CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect`	$400.00K	USD	Annual
NET CHANGE IN CASH AND CASH EQUIVALENTS	`CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect`	$88.10M	USD	Annual
NET CHANGE IN CASH AND CASH EQUIVALENTS	`CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect`	$88.10M	USD	Annual
CASH AND CASH EQUIVALENTS AT BEGINNING OF YEAR	`CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsIncludingDisposalGroupAndDiscontinuedOperations`	$200.00K	USD	Point-in-time
CASH AND CASH EQUIVALENTS AT BEGINNING OF YEAR	`CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsIncludingDisposalGroupAndDiscontinuedOperations`	$200.00K	USD	Point-in-time
CASH AND CASH EQUIVALENTS AT BEGINNING OF YEAR	`CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsIncludingDisposalGroupAndDiscontinuedOperations`	$600.00K	USD	Point-in-time
CASH AND CASH EQUIVALENTS AT BEGINNING OF YEAR	`CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsIncludingDisposalGroupAndDiscontinuedOperations`	$600.00K	USD	Point-in-time
CASH AND CASH EQUIVALENTS AT BEGINNING OF YEAR	`CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsIncludingDisposalGroupAndDiscontinuedOperations`	-	USD	Point-in-time
CASH AND CASH EQUIVALENTS AT BEGINNING OF YEAR	`CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsIncludingDisposalGroupAndDiscontinuedOperations`	-	USD	Point-in-time
CASH AND CASH EQUIVALENTS AT BEGINNING OF YEAR	`CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsIncludingDisposalGroupAndDiscontinuedOperations`	$88.10M	USD	Point-in-time
CASH AND CASH EQUIVALENTS AT BEGINNING OF YEAR	`CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsIncludingDisposalGroupAndDiscontinuedOperations`	$88.10M	USD	Point-in-time
CASH AND CASH EQUIVALENTS AT END OF YEAR	`CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsIncludingDisposalGroupAndDiscontinuedOperations`	$200.00K	USD	Point-in-time
CASH AND CASH EQUIVALENTS AT END OF YEAR	`CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsIncludingDisposalGroupAndDiscontinuedOperations`	$200.00K	USD	Point-in-time
CASH AND CASH EQUIVALENTS AT END OF YEAR	`CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsIncludingDisposalGroupAndDiscontinuedOperations`	$600.00K	USD	Point-in-time
CASH AND CASH EQUIVALENTS AT END OF YEAR	`CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsIncludingDisposalGroupAndDiscontinuedOperations`	$600.00K	USD	Point-in-time
CASH AND CASH EQUIVALENTS AT END OF YEAR	`CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsIncludingDisposalGroupAndDiscontinuedOperations`	-	USD	Point-in-time
CASH AND CASH EQUIVALENTS AT END OF YEAR	`CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsIncludingDisposalGroupAndDiscontinuedOperations`	-	USD	Point-in-time
CASH AND CASH EQUIVALENTS AT END OF YEAR	`CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsIncludingDisposalGroupAndDiscontinuedOperations`	$88.10M	USD	Point-in-time
CASH AND CASH EQUIVALENTS AT END OF YEAR	`CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsIncludingDisposalGroupAndDiscontinuedOperations`	$88.10M	USD	Point-in-time
Interest (net of interest capitalized)	`InterestPaidNet`	$202.40M	USD	Annual
Interest (net of interest capitalized)	`InterestPaidNet`	$202.40M	USD	Annual
Interest (net of interest capitalized)	`InterestPaidNet`	$251.10M	USD	Annual
Interest (net of interest capitalized)	`InterestPaidNet`	$251.10M	USD	Annual
Interest (net of interest capitalized)	`InterestPaidNet`	$164.00M	USD	Annual
Interest (net of interest capitalized)	`InterestPaidNet`	$164.00M	USD	Annual
Income taxes (net of income tax refunds)	`IncomeTaxesPaidNet`	$41.50M	USD	Annual
Income taxes (net of income tax refunds)	`IncomeTaxesPaidNet`	$41.50M	USD	Annual
Income taxes (net of income tax refunds)	`IncomeTaxesPaidNet`	$36.90M	USD	Annual
Income taxes (net of income tax refunds)	`IncomeTaxesPaidNet`	$36.90M	USD	Annual
Income taxes (net of income tax refunds)	`IncomeTaxesPaidNet`	$276.00M	USD	Annual
Income taxes (net of income tax refunds)	`IncomeTaxesPaidNet`	$276.00M	USD	Annual
Power plant long-term service agreement	`PowerPlantLongTermServiceAgreement`	$6.40M	USD	Annual
Power plant long-term service agreement	`PowerPlantLongTermServiceAgreement`	$6.40M	USD	Annual
Power plant long-term service agreement	`PowerPlantLongTermServiceAgreement`	$800.00K	USD	Annual
Power plant long-term service agreement	`PowerPlantLongTermServiceAgreement`	$800.00K	USD	Annual
Power plant long-term service agreement	`PowerPlantLongTermServiceAgreement`	$700.00K	USD	Annual
Power plant long-term service agreement	`PowerPlantLongTermServiceAgreement`	$700.00K	USD	Annual
Tinker Air Force Base distribution assets purchase	`FairValueOfAssetsAcquired`	$2.60M	USD	Annual
Tinker Air Force Base distribution assets purchase	`FairValueOfAssetsAcquired`	$2.60M	USD	Annual
Tinker Air Force Base distribution assets purchase	`FairValueOfAssetsAcquired`	-	USD	Annual
Tinker Air Force Base distribution assets purchase	`FairValueOfAssetsAcquired`	-	USD	Annual
Tinker Air Force Base distribution assets purchase	`FairValueOfAssetsAcquired`	-	USD	Annual
Tinker Air Force Base distribution assets purchase	`FairValueOfAssetsAcquired`	-	USD	Annual

Stockholders Equity 62 line items

Line Item	Tag	Value	Unit	Period
Common Stock, Dividends, Per Share, Declared	`CommonStockDividendsPerShareDeclared`	$1.68	USD	Annual
Common Stock, Dividends, Per Share, Declared	`CommonStockDividendsPerShareDeclared`	$1.68	USD	Annual
Common Stock, Dividends, Per Share, Declared	`CommonStockDividendsPerShareDeclared`	$1.66	USD	Annual
Common Stock, Dividends, Per Share, Declared	`CommonStockDividendsPerShareDeclared`	$1.66	USD	Annual
Common Stock, Dividends, Per Share, Declared	`CommonStockDividendsPerShareDeclared`	$1.65	USD	Annual
Common Stock, Dividends, Per Share, Declared	`CommonStockDividendsPerShareDeclared`	$1.65	USD	Annual
Balance	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$4.51B	USD	Point-in-time
Balance	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$4.51B	USD	Point-in-time
Balance	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$4.41B	USD	Point-in-time
Balance	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$4.41B	USD	Point-in-time
Balance	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$4.64B	USD	Point-in-time
Balance	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$4.64B	USD	Point-in-time
Balance	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$4.06B	USD	Point-in-time
Balance	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$4.06B	USD	Point-in-time
Common Stock, Shares, Outstanding	`CommonStockSharesOutstanding`	200.30M	shares	Point-in-time
Common Stock, Shares, Outstanding	`CommonStockSharesOutstanding`	200.30M	shares	Point-in-time
Common Stock, Shares, Outstanding	`CommonStockSharesOutstanding`	201.00M	shares	Point-in-time
Common Stock, Shares, Outstanding	`CommonStockSharesOutstanding`	201.00M	shares	Point-in-time
Net income	`ProfitLoss`	$665.70M	USD	Annual
Net income	`ProfitLoss`	$665.70M	USD	Annual
Net income	`ProfitLoss`	$441.50M	USD	Annual
Net income	`ProfitLoss`	$441.50M	USD	Annual
Net income	`ProfitLoss`	$416.80M	USD	Annual
Net income	`ProfitLoss`	$416.80M	USD	Annual
Other comprehensive income, net of tax	`OtherComprehensiveIncomeLossNetOfTax`	$4.50M	USD	Annual
Other comprehensive income, net of tax	`OtherComprehensiveIncomeLossNetOfTax`	$4.50M	USD	Annual
Other comprehensive income, net of tax	`OtherComprehensiveIncomeLossNetOfTax`	$4.70M	USD	Annual
Other comprehensive income, net of tax	`OtherComprehensiveIncomeLossNetOfTax`	$4.70M	USD	Annual
Other comprehensive income, net of tax	`OtherComprehensiveIncomeLossNetOfTax`	$12.90M	USD	Annual
Other comprehensive income, net of tax	`OtherComprehensiveIncomeLossNetOfTax`	$12.90M	USD	Annual
Dividends declared on common stock	`DividendsCommonStockCash`	$330.20M	USD	Annual
Dividends declared on common stock	`DividendsCommonStockCash`	$330.20M	USD	Annual
Dividends declared on common stock	`DividendsCommonStockCash`	$339.50M	USD	Annual
Dividends declared on common stock	`DividendsCommonStockCash`	$339.50M	USD	Annual
Dividends declared on common stock	`DividendsCommonStockCash`	$334.00M	USD	Annual
Dividends declared on common stock	`DividendsCommonStockCash`	$334.00M	USD	Annual
Issuance of common stock, Value	`StockIssuedDuringPeriodValueNewIssues`	$17.10M	USD	Annual
Issuance of common stock, Value	`StockIssuedDuringPeriodValueNewIssues`	$17.10M	USD	Annual
Issuance of common stock, Number of Shares	`StockIssuedDuringPeriodSharesNewIssues`	82,321.00	shares	Annual
Issuance of common stock, Number of Shares	`StockIssuedDuringPeriodSharesNewIssues`	82,321.00	shares	Annual
Issuance of common stock, Number of Shares	`StockIssuedDuringPeriodSharesNewIssues`	27,278.00	shares	Annual
Issuance of common stock, Number of Shares	`StockIssuedDuringPeriodSharesNewIssues`	27,278.00	shares	Annual
Issuance of common stock, Number of Shares	`StockIssuedDuringPeriodSharesNewIssues`	255,578.00	shares	Annual
Issuance of common stock, Number of Shares	`StockIssuedDuringPeriodSharesNewIssues`	255,578.00	shares	Annual
Stock-based compensation	`AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue`	$10.70M	USD	Annual
Stock-based compensation	`AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue`	$10.70M	USD	Annual
Stock-based compensation	`AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue`	$8.70M	USD	Annual
Stock-based compensation	`AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue`	$8.70M	USD	Annual
Stock-based compensation	`AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue`	$5.70M	USD	Annual
Stock-based compensation	`AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue`	$5.70M	USD	Annual
Balance	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$4.51B	USD	Point-in-time
Balance	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$4.51B	USD	Point-in-time
Balance	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$4.41B	USD	Point-in-time
Balance	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$4.41B	USD	Point-in-time
Balance	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$4.64B	USD	Point-in-time
Balance	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$4.64B	USD	Point-in-time
Balance	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$4.06B	USD	Point-in-time
Balance	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$4.06B	USD	Point-in-time
Common Stock, Shares, Outstanding	`CommonStockSharesOutstanding`	200.30M	shares	Point-in-time
Common Stock, Shares, Outstanding	`CommonStockSharesOutstanding`	200.30M	shares	Point-in-time
Common Stock, Shares, Outstanding	`CommonStockSharesOutstanding`	201.00M	shares	Point-in-time
Common Stock, Shares, Outstanding	`CommonStockSharesOutstanding`	201.00M	shares	Point-in-time

Comprehensive Income 66 line items

Line Item	Tag	Value	Unit	Period
Net income	`ProfitLoss`	$665.70M	USD	Annual
Net income	`ProfitLoss`	$665.70M	USD	Annual
Net income	`ProfitLoss`	$441.50M	USD	Annual
Net income	`ProfitLoss`	$441.50M	USD	Annual
Net income	`ProfitLoss`	$416.80M	USD	Annual
Net income	`ProfitLoss`	$416.80M	USD	Annual
Amortization of prior service cost, net of tax of $0.1, $0.1 and $0.1, respectively	`OtherComprehensiveIncomeAmortizationOfDefinedBenefitPensionPlansNetPriorServiceCostRecognizedInNetPeriodicPensionCostNetOfTax`	$-200.00K	USD	Annual
Amortization of prior service cost, net of tax of $0.1, $0.1 and $0.1, respectively	`OtherComprehensiveIncomeAmortizationOfDefinedBenefitPensionPlansNetPriorServiceCostRecognizedInNetPeriodicPensionCostNetOfTax`	$-200.00K	USD	Annual
Amortization of prior service cost, net of tax of $0.1, $0.1 and $0.1, respectively	`OtherComprehensiveIncomeAmortizationOfDefinedBenefitPensionPlansNetPriorServiceCostRecognizedInNetPeriodicPensionCostNetOfTax`	$-200.00K	USD	Annual
Amortization of prior service cost, net of tax of $0.1, $0.1 and $0.1, respectively	`OtherComprehensiveIncomeAmortizationOfDefinedBenefitPensionPlansNetPriorServiceCostRecognizedInNetPeriodicPensionCostNetOfTax`	$-200.00K	USD	Annual
Amortization of prior service cost, net of tax of $0.1, $0.1 and $0.1, respectively	`OtherComprehensiveIncomeAmortizationOfDefinedBenefitPensionPlansNetPriorServiceCostRecognizedInNetPeriodicPensionCostNetOfTax`	$-200.00K	USD	Annual
Amortization of prior service cost, net of tax of $0.1, $0.1 and $0.1, respectively	`OtherComprehensiveIncomeAmortizationOfDefinedBenefitPensionPlansNetPriorServiceCostRecognizedInNetPeriodicPensionCostNetOfTax`	$-200.00K	USD	Annual
Amortization of deferred net loss, net of tax of $0.1, $0.2 and $0.2, respectively	`OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansForNetGainLossNetOfTax`	$-1.40M	USD	Annual
Amortization of deferred net loss, net of tax of $0.1, $0.2 and $0.2, respectively	`OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansForNetGainLossNetOfTax`	$-1.40M	USD	Annual
Amortization of deferred net loss, net of tax of $0.1, $0.2 and $0.2, respectively	`OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansForNetGainLossNetOfTax`	$-200.00K	USD	Annual
Amortization of deferred net loss, net of tax of $0.1, $0.2 and $0.2, respectively	`OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansForNetGainLossNetOfTax`	$-200.00K	USD	Annual
Amortization of deferred net loss, net of tax of $0.1, $0.2 and $0.2, respectively	`OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansForNetGainLossNetOfTax`	$-900.00K	USD	Annual
Amortization of deferred net loss, net of tax of $0.1, $0.2 and $0.2, respectively	`OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansForNetGainLossNetOfTax`	$-900.00K	USD	Annual
Net (loss) gain arising during the period, net of tax of $0.0, $1.0 and ($2.4), respectively	`OtherComprehensiveIncomeDefinedBenefitPlansNetUnamortizedGainLossArisingDuringPeriodNetOfTax`	$3.30M	USD	Annual
Net (loss) gain arising during the period, net of tax of $0.0, $1.0 and ($2.4), respectively	`OtherComprehensiveIncomeDefinedBenefitPlansNetUnamortizedGainLossArisingDuringPeriodNetOfTax`	$3.30M	USD	Annual
Net (loss) gain arising during the period, net of tax of $0.0, $1.0 and ($2.4), respectively	`OtherComprehensiveIncomeDefinedBenefitPlansNetUnamortizedGainLossArisingDuringPeriodNetOfTax`	$-200.00K	USD	Annual
Net (loss) gain arising during the period, net of tax of $0.0, $1.0 and ($2.4), respectively	`OtherComprehensiveIncomeDefinedBenefitPlansNetUnamortizedGainLossArisingDuringPeriodNetOfTax`	$-200.00K	USD	Annual
Net (loss) gain arising during the period, net of tax of $0.0, $1.0 and ($2.4), respectively	`OtherComprehensiveIncomeDefinedBenefitPlansNetUnamortizedGainLossArisingDuringPeriodNetOfTax`	$-7.60M	USD	Annual
Net (loss) gain arising during the period, net of tax of $0.0, $1.0 and ($2.4), respectively	`OtherComprehensiveIncomeDefinedBenefitPlansNetUnamortizedGainLossArisingDuringPeriodNetOfTax`	$-7.60M	USD	Annual
Regulatory classification of certain pension costs, net of tax of $1.2, $0.0 and $0.0, respectively	`OtherComprehensiveIncomeRegulatoryClassificationOfCertainPensionCostNetOfTax`	-	USD	Annual
Regulatory classification of certain pension costs, net of tax of $1.2, $0.0 and $0.0, respectively	`OtherComprehensiveIncomeRegulatoryClassificationOfCertainPensionCostNetOfTax`	-	USD	Annual
Regulatory classification of certain pension costs, net of tax of $1.2, $0.0 and $0.0, respectively	`OtherComprehensiveIncomeRegulatoryClassificationOfCertainPensionCostNetOfTax`	$3.90M	USD	Annual
Regulatory classification of certain pension costs, net of tax of $1.2, $0.0 and $0.0, respectively	`OtherComprehensiveIncomeRegulatoryClassificationOfCertainPensionCostNetOfTax`	$3.90M	USD	Annual
Regulatory classification of certain pension costs, net of tax of $1.2, $0.0 and $0.0, respectively	`OtherComprehensiveIncomeRegulatoryClassificationOfCertainPensionCostNetOfTax`	-	USD	Annual
Regulatory classification of certain pension costs, net of tax of $1.2, $0.0 and $0.0, respectively	`OtherComprehensiveIncomeRegulatoryClassificationOfCertainPensionCostNetOfTax`	-	USD	Annual
Settlement cost, net of tax of $0.0, $0.4 and $4.3, respectively	`OtherComprehensiveIncomeLossFinalizationOfPensionAndNonPensionPostretirementPlanValuationNetOfTax`	$13.60M	USD	Annual
Settlement cost, net of tax of $0.0, $0.4 and $4.3, respectively	`OtherComprehensiveIncomeLossFinalizationOfPensionAndNonPensionPostretirementPlanValuationNetOfTax`	$13.60M	USD	Annual
Settlement cost, net of tax of $0.0, $0.4 and $4.3, respectively	`OtherComprehensiveIncomeLossFinalizationOfPensionAndNonPensionPostretirementPlanValuationNetOfTax`	$1.20M	USD	Annual
Settlement cost, net of tax of $0.0, $0.4 and $4.3, respectively	`OtherComprehensiveIncomeLossFinalizationOfPensionAndNonPensionPostretirementPlanValuationNetOfTax`	$1.20M	USD	Annual
Settlement cost, net of tax of $0.0, $0.4 and $4.3, respectively	`OtherComprehensiveIncomeLossFinalizationOfPensionAndNonPensionPostretirementPlanValuationNetOfTax`	-	USD	Annual
Settlement cost, net of tax of $0.0, $0.4 and $4.3, respectively	`OtherComprehensiveIncomeLossFinalizationOfPensionAndNonPensionPostretirementPlanValuationNetOfTax`	-	USD	Annual
Amortization of prior service credit, net of tax of $0.0, $0.0 and ($0.1), respectively	`OtherComprehensiveIncomeAmortizationOfDefinedBenefitPostretirementPlansNetPriorServiceCostRecognizedInNetPeriodicPostretirementCostNetOfTax`	-	USD	Annual
Amortization of prior service credit, net of tax of $0.0, $0.0 and ($0.1), respectively	`OtherComprehensiveIncomeAmortizationOfDefinedBenefitPostretirementPlansNetPriorServiceCostRecognizedInNetPeriodicPostretirementCostNetOfTax`	-	USD	Annual
Amortization of prior service credit, net of tax of $0.0, $0.0 and ($0.1), respectively	`OtherComprehensiveIncomeAmortizationOfDefinedBenefitPostretirementPlansNetPriorServiceCostRecognizedInNetPeriodicPostretirementCostNetOfTax`	$-200.00K	USD	Annual
Amortization of prior service credit, net of tax of $0.0, $0.0 and ($0.1), respectively	`OtherComprehensiveIncomeAmortizationOfDefinedBenefitPostretirementPlansNetPriorServiceCostRecognizedInNetPeriodicPostretirementCostNetOfTax`	$-200.00K	USD	Annual
Amortization of prior service credit, net of tax of $0.0, $0.0 and ($0.1), respectively	`OtherComprehensiveIncomeAmortizationOfDefinedBenefitPostretirementPlansNetPriorServiceCostRecognizedInNetPeriodicPostretirementCostNetOfTax`	-	USD	Annual
Amortization of prior service credit, net of tax of $0.0, $0.0 and ($0.1), respectively	`OtherComprehensiveIncomeAmortizationOfDefinedBenefitPostretirementPlansNetPriorServiceCostRecognizedInNetPeriodicPostretirementCostNetOfTax`	-	USD	Annual
Amortization of deferred net gain, net of tax of $(0.1), ($0.1) and $0.0, respectively	`OtherComprehensiveIncomeReclassificationOfDefinedBenefitPostretirementPlansNetGainLossRecognizedInNetPeriodicBenefitCostNetOfTax`	$100.00K	USD	Annual
Amortization of deferred net gain, net of tax of $(0.1), ($0.1) and $0.0, respectively	`OtherComprehensiveIncomeReclassificationOfDefinedBenefitPostretirementPlansNetGainLossRecognizedInNetPeriodicBenefitCostNetOfTax`	$100.00K	USD	Annual
Amortization of deferred net gain, net of tax of $(0.1), ($0.1) and $0.0, respectively	`OtherComprehensiveIncomeReclassificationOfDefinedBenefitPostretirementPlansNetGainLossRecognizedInNetPeriodicBenefitCostNetOfTax`	$100.00K	USD	Annual
Amortization of deferred net gain, net of tax of $(0.1), ($0.1) and $0.0, respectively	`OtherComprehensiveIncomeReclassificationOfDefinedBenefitPostretirementPlansNetGainLossRecognizedInNetPeriodicBenefitCostNetOfTax`	$100.00K	USD	Annual
Amortization of deferred net gain, net of tax of $(0.1), ($0.1) and $0.0, respectively	`OtherComprehensiveIncomeReclassificationOfDefinedBenefitPostretirementPlansNetGainLossRecognizedInNetPeriodicBenefitCostNetOfTax`	-	USD	Annual
Amortization of deferred net gain, net of tax of $(0.1), ($0.1) and $0.0, respectively	`OtherComprehensiveIncomeReclassificationOfDefinedBenefitPostretirementPlansNetGainLossRecognizedInNetPeriodicBenefitCostNetOfTax`	-	USD	Annual
Net gain (loss) arising during the period, net of tax of $0.2, ($0.2) and $1.7, respectively	`OtherComprehensiveIncomePostretirementPlansNetUnamortizedGainLossArisingDuringPeriodNetOfTax`	$-800.00K	USD	Annual
Net gain (loss) arising during the period, net of tax of $0.2, ($0.2) and $1.7, respectively	`OtherComprehensiveIncomePostretirementPlansNetUnamortizedGainLossArisingDuringPeriodNetOfTax`	$-800.00K	USD	Annual
Net gain (loss) arising during the period, net of tax of $0.2, ($0.2) and $1.7, respectively	`OtherComprehensiveIncomePostretirementPlansNetUnamortizedGainLossArisingDuringPeriodNetOfTax`	$5.50M	USD	Annual
Net gain (loss) arising during the period, net of tax of $0.2, ($0.2) and $1.7, respectively	`OtherComprehensiveIncomePostretirementPlansNetUnamortizedGainLossArisingDuringPeriodNetOfTax`	$5.50M	USD	Annual
Net gain (loss) arising during the period, net of tax of $0.2, ($0.2) and $1.7, respectively	`OtherComprehensiveIncomePostretirementPlansNetUnamortizedGainLossArisingDuringPeriodNetOfTax`	$500.00K	USD	Annual
Net gain (loss) arising during the period, net of tax of $0.2, ($0.2) and $1.7, respectively	`OtherComprehensiveIncomePostretirementPlansNetUnamortizedGainLossArisingDuringPeriodNetOfTax`	$500.00K	USD	Annual
Other comprehensive income, net of tax	`OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent`	$12.90M	USD	Annual
Other comprehensive income, net of tax	`OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent`	$12.90M	USD	Annual
Other comprehensive income, net of tax	`OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent`	$4.70M	USD	Annual
Other comprehensive income, net of tax	`OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent`	$4.70M	USD	Annual
Other comprehensive income, net of tax	`OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent`	$4.50M	USD	Annual
Other comprehensive income, net of tax	`OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent`	$4.50M	USD	Annual
Comprehensive income	`ComprehensiveIncomeNetOfTax`	$678.60M	USD	Annual
Comprehensive income	`ComprehensiveIncomeNetOfTax`	$678.60M	USD	Annual
Comprehensive income	`ComprehensiveIncomeNetOfTax`	$421.50M	USD	Annual
Comprehensive income	`ComprehensiveIncomeNetOfTax`	$421.50M	USD	Annual
Comprehensive income	`ComprehensiveIncomeNetOfTax`	$446.00M	USD	Annual
Comprehensive income	`ComprehensiveIncomeNetOfTax`	$446.00M	USD	Annual

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