10-Q Filing

PINNACLE WEST CAPITAL CORP CIK: 764622 Q3 2020

Filing Information

Form Type	10-Q
Accession Number	`0000764622-20-000077`
Period End Date	20200930
Filing Date	20201030
Fiscal Year	2020
Fiscal Period	Q3
XBRL Instance	pnw-20200930_htm.xml

Filing Contents

This filing contains the following financial statements:

Balance Sheet 140 Income Statement 100 Cash Flow Statement 84 Stockholders Equity 47 Comprehensive Income 44

Balance Sheet 140 line items

Line Item	Tag	Value	Unit	Period
Common stock, authorized shares (in shares)	`CommonStockSharesAuthorized`	150.00M	shares	Point-in-time
Common stock, authorized shares (in shares)	`CommonStockSharesAuthorized`	150.00M	shares	Point-in-time
Common stock, issued shares (in shares)	`CommonStockSharesIssued`	112.62M	shares	Point-in-time
Common stock, issued shares (in shares)	`CommonStockSharesIssued`	112.54M	shares	Point-in-time
Treasury stock at cost, shares (in shares)	`TreasuryStockShares`	103,546.00	shares	Point-in-time
Treasury stock at cost, shares (in shares)	`TreasuryStockShares`	33,717.00	shares	Point-in-time
Cash and cash equivalents	`CashAndCashEquivalentsAtCarryingValue`	$181.93M	USD	Point-in-time
Cash and cash equivalents	`CashAndCashEquivalentsAtCarryingValue`	$10.28M	USD	Point-in-time
Customer and other receivables	`AccountsReceivableGrossCurrent`	$266.43M	USD	Point-in-time
Customer and other receivables	`AccountsReceivableGrossCurrent`	$417.42M	USD	Point-in-time
Accrued unbilled revenues	`ContractWithCustomerAssetNetCurrent`	$175.34M	USD	Point-in-time
Accrued unbilled revenues	`ContractWithCustomerAssetNetCurrent`	$128.16M	USD	Point-in-time
Allowance for doubtful accounts	`AllowanceForDoubtfulAccountsReceivableCurrent`	$18.07M	USD	Point-in-time
Allowance for doubtful accounts	`AllowanceForDoubtfulAccountsReceivableCurrent`	$8.17M	USD	Point-in-time
Materials and supplies (at average cost)	`OtherInventorySupplies`	$331.09M	USD	Point-in-time
Materials and supplies (at average cost)	`OtherInventorySupplies`	$322.02M	USD	Point-in-time
Fossil fuel (at average cost)	`EnergyRelatedInventoryOtherFossilFuel`	$14.83M	USD	Point-in-time
Fossil fuel (at average cost)	`EnergyRelatedInventoryOtherFossilFuel`	$17.06M	USD	Point-in-time
Income tax receivable	`IncomeTaxesReceivable`	$4.33M	USD	Point-in-time
Income tax receivable	`IncomeTaxesReceivable`	$21.73M	USD	Point-in-time
Assets from risk management activities (Note 7)	`DerivativeInstrumentsAndHedges`	$515.00K	USD	Point-in-time
Assets from risk management activities (Note 7)	`DerivativeInstrumentsAndHedges`	$13.88M	USD	Point-in-time
Deferred fuel and purchased power regulatory asset (Note 4)	`DeferredFuelAndPurchasedPowerRegulatoryAssetCurrent`	$162.11M	USD	Point-in-time
Deferred fuel and purchased power regulatory asset (Note 4)	`DeferredFuelAndPurchasedPowerRegulatoryAssetCurrent`	$70.14M	USD	Point-in-time
Other regulatory assets (Note 4)	`RegulatoryAssetsCurrent`	$133.07M	USD	Point-in-time
Other regulatory assets (Note 4)	`RegulatoryAssetsCurrent`	$110.76M	USD	Point-in-time
Other current assets	`OtherAssetsCurrent`	$61.96M	USD	Point-in-time
Other current assets	`OtherAssetsCurrent`	$67.93M	USD	Point-in-time
Total current assets	`AssetsCurrent`	$1.03B	USD	Point-in-time
Total current assets	`AssetsCurrent`	$1.45B	USD	Point-in-time
Nuclear decommissioning trust (Notes 11 and 12)	`DecommissioningTrustAssetsAmount`	$1.01B	USD	Point-in-time
Nuclear decommissioning trust (Notes 11 and 12)	`DecommissioningTrustAssetsAmount`	$1.07B	USD	Point-in-time
Other special use funds (Notes 11 and 12)	`CoalReclamationandUnionTrust`	$268.29M	USD	Point-in-time
Other special use funds (Notes 11 and 12)	`CoalReclamationandUnionTrust`	$245.09M	USD	Point-in-time
Other assets	`OtherAssetsNoncurrent`	$96.95M	USD	Point-in-time
Other assets	`OtherAssetsNoncurrent`	$96.86M	USD	Point-in-time
Total investments and other assets	`TotalInvestmentsAndOtherAssets`	$1.43B	USD	Point-in-time
Total investments and other assets	`TotalInvestmentsAndOtherAssets`	$1.35B	USD	Point-in-time
Plant in service and held for future use	`PropertyPlantAndEquipmentGross`	$20.45B	USD	Point-in-time
Plant in service and held for future use	`PropertyPlantAndEquipmentGross`	$19.84B	USD	Point-in-time
Accumulated depreciation and amortization	`AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment`	$6.64B	USD	Point-in-time
Accumulated depreciation and amortization	`AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment`	$7.00B	USD	Point-in-time
Net	`PropertyPlantAndEquipmentNet`	$13.20B	USD	Point-in-time
Net	`PropertyPlantAndEquipmentNet`	$13.45B	USD	Point-in-time
Construction work in progress	`ConstructioninProgress`	$972.02M	USD	Point-in-time
Construction work in progress	`ConstructioninProgress`	$808.13M	USD	Point-in-time
Intangible assets, net of accumulated amortization	`IntangibleAssetsNetExcludingGoodwill`	$266.22M	USD	Point-in-time
Intangible assets, net of accumulated amortization	`IntangibleAssetsNetExcludingGoodwill`	$290.56M	USD	Point-in-time
Nuclear fuel, net of accumulated amortization	`NuclearFuelNetOfAmortization`	$123.50M	USD	Point-in-time
Nuclear fuel, net of accumulated amortization	`NuclearFuelNetOfAmortization`	$128.88M	USD	Point-in-time
Total property, plant and equipment	`PublicUtilitiesPropertyPlantAndEquipmentNet`	$14.92B	USD	Point-in-time
Total property, plant and equipment	`PublicUtilitiesPropertyPlantAndEquipmentNet`	$14.52B	USD	Point-in-time
Regulatory assets (Note 4)	`RegulatoryAssetsNoncurrent`	$1.30B	USD	Point-in-time
Regulatory assets (Note 4)	`RegulatoryAssetsNoncurrent`	$1.31B	USD	Point-in-time
Operating lease right-of-use assets (Note 16)	`OperatingLeaseRightOfUseAsset`	$145.81M	USD	Point-in-time
Operating lease right-of-use assets (Note 16)	`OperatingLeaseRightOfUseAsset`	$502.90M	USD	Point-in-time
Assets for other postretirement benefits (Note 5)	`DefinedBenefitPlanAssetsForPlanBenefitsNoncurrent`	$90.57M	USD	Point-in-time
Assets for other postretirement benefits (Note 5)	`DefinedBenefitPlanAssetsForPlanBenefitsNoncurrent`	$105.67M	USD	Point-in-time
Other	`OtherDeferredCostsNet`	$33.40M	USD	Point-in-time
Other	`OtherDeferredCostsNet`	$28.18M	USD	Point-in-time
Total deferred debits	`TotalDeferredDebits`	$1.57B	USD	Point-in-time
Total deferred debits	`TotalDeferredDebits`	$1.94B	USD	Point-in-time
TOTAL ASSETS	`Assets`	$19.75B	USD	Point-in-time
TOTAL ASSETS	`Assets`	$18.48B	USD	Point-in-time
Current maturities of long-term debt (Note 3)	`OtherLongTermDebtCurrent`	-	USD	Point-in-time
Current maturities of long-term debt (Note 3)	`OtherLongTermDebtCurrent`	$800.00M	USD	Point-in-time
Accounts payable	`AccountsPayableCurrent`	$346.45M	USD	Point-in-time
Accounts payable	`AccountsPayableCurrent`	$288.26M	USD	Point-in-time
Accrued taxes	`TaxesPayableCurrent`	$221.36M	USD	Point-in-time
Accrued taxes	`TaxesPayableCurrent`	$144.90M	USD	Point-in-time
Accrued interest	`InterestPayableCurrent`	$53.53M	USD	Point-in-time
Accrued interest	`InterestPayableCurrent`	$60.64M	USD	Point-in-time
Common dividends payable	`DividendsPayableCurrent`	-	USD	Point-in-time
Common dividends payable	`DividendsPayableCurrent`	$87.98M	USD	Point-in-time
Short-term borrowings (Note 3)	`ShortTermBorrowings`	$57.92M	USD	Point-in-time
Short-term borrowings (Note 3)	`ShortTermBorrowings`	$114.67M	USD	Point-in-time
Customer deposits	`ContractWithCustomerLiabilityCurrent`	$64.91M	USD	Point-in-time
Customer deposits	`ContractWithCustomerLiabilityCurrent`	$47.73M	USD	Point-in-time
Liabilities from risk management activities (Note 7)	`DerivativeInstrumentsAndHedgesLiabilities`	$4.27M	USD	Point-in-time
Liabilities from risk management activities (Note 7)	`DerivativeInstrumentsAndHedgesLiabilities`	$38.95M	USD	Point-in-time
Liabilities for asset retirements	`AssetRetirementObligationCurrent`	$12.23M	USD	Point-in-time
Liabilities for asset retirements	`AssetRetirementObligationCurrent`	$11.03M	USD	Point-in-time
Operating lease liabilities (Note 16)	`OperatingLeaseLiabilityCurrent`	$89.06M	USD	Point-in-time
Operating lease liabilities (Note 16)	`OperatingLeaseLiabilityCurrent`	$12.71M	USD	Point-in-time
Regulatory liabilities (Note 4)	`RegulatoryLiabilityCurrent`	$308.02M	USD	Point-in-time
Regulatory liabilities (Note 4)	`RegulatoryLiabilityCurrent`	$234.91M	USD	Point-in-time
Other current liabilities	`OtherLiabilitiesCurrent`	$168.32M	USD	Point-in-time
Other current liabilities	`OtherLiabilitiesCurrent`	$155.29M	USD	Point-in-time
Total current liabilities	`LiabilitiesCurrent`	$2.08B	USD	Point-in-time
Total current liabilities	`LiabilitiesCurrent`	$1.24B	USD	Point-in-time
Long-term debt less current maturities (Note 3)	`LongTermDebtNoncurrent`	$6.32B	USD	Point-in-time
Long-term debt less current maturities (Note 3)	`LongTermDebtNoncurrent`	$4.83B	USD	Point-in-time
Deferred income taxes	`DeferredIncomeTaxLiabilitiesNet`	$2.16B	USD	Point-in-time
Deferred income taxes	`DeferredIncomeTaxLiabilitiesNet`	$1.99B	USD	Point-in-time
Regulatory liabilities (Note 4)	`RegulatoryLiabilityNoncurrent`	$2.08B	USD	Point-in-time
Regulatory liabilities (Note 4)	`RegulatoryLiabilityNoncurrent`	$2.27B	USD	Point-in-time
Liabilities for asset retirements	`AssetRetirementObligationsNoncurrent`	$674.02M	USD	Point-in-time
Liabilities for asset retirements	`AssetRetirementObligationsNoncurrent`	$646.19M	USD	Point-in-time
Liabilities for pension benefits (Note 5)	`PensionAndOtherPostretirementDefinedBenefitPlansLiabilitiesNoncurrent`	$177.85M	USD	Point-in-time
Liabilities for pension benefits (Note 5)	`PensionAndOtherPostretirementDefinedBenefitPlansLiabilitiesNoncurrent`	$280.19M	USD	Point-in-time
Liabilities from risk management activities (Note 7)	`DerivativeLiabilitiesNoncurrent`	$9.09M	USD	Point-in-time
Liabilities from risk management activities (Note 7)	`DerivativeLiabilitiesNoncurrent`	$33.19M	USD	Point-in-time
Customer advances	`ContractWithCustomerLiabilityNoncurrent`	$224.92M	USD	Point-in-time
Customer advances	`ContractWithCustomerLiabilityNoncurrent`	$215.33M	USD	Point-in-time
Unrecorded Unconditional Purchase Obligation	`UnrecordedUnconditionalPurchaseObligationBalanceSheetAmount`	$169.00M	USD	Point-in-time
Unrecorded Unconditional Purchase Obligation	`UnrecordedUnconditionalPurchaseObligationBalanceSheetAmount`	$165.69M	USD	Point-in-time
Deferred investment tax credit	`AccumulatedDeferredInvestmentTaxCredit`	$196.47M	USD	Point-in-time
Deferred investment tax credit	`AccumulatedDeferredInvestmentTaxCredit`	$187.93M	USD	Point-in-time
Unrecognized tax benefits	`LiabilityForUncertainTaxPositionsNoncurrent`	$6.01M	USD	Point-in-time
Unrecognized tax benefits	`LiabilityForUncertainTaxPositionsNoncurrent`	$6.19M	USD	Point-in-time
Operating lease liabilities (Note 16)	`OperatingLeaseLiabilityNoncurrent`	$51.87M	USD	Point-in-time
Operating lease liabilities (Note 16)	`OperatingLeaseLiabilityNoncurrent`	$358.49M	USD	Point-in-time
Other	`OtherLiabilitiesNoncurrent`	$159.84M	USD	Point-in-time
Other	`OtherLiabilitiesNoncurrent`	$173.35M	USD	Point-in-time
Total deferred credits and other	`DeferredCreditsAndOtherLiabilities`	$6.02B	USD	Point-in-time
Total deferred credits and other	`DeferredCreditsAndOtherLiabilities`	$6.22B	USD	Point-in-time
COMMITMENTS AND CONTINGENCIES (NOTE 8)	`CommitmentsAndContingencies`	-	USD	Point-in-time
COMMITMENTS AND CONTINGENCIES (NOTE 8)	`CommitmentsAndContingencies`	-	USD	Point-in-time
Common stock, no par value; authorized 150,000,000 shares, 112,623,623 and 112,540,126 issued at respective dates	`CommonStockValue`	$2.66B	USD	Point-in-time
Common stock, no par value; authorized 150,000,000 shares, 112,623,623 and 112,540,126 issued at respective dates	`CommonStockValue`	$2.67B	USD	Point-in-time
Treasury stock at cost; 33,717 and 103,546 shares at respective dates	`TreasuryStockValue`	$9.43M	USD	Point-in-time
Treasury stock at cost; 33,717 and 103,546 shares at respective dates	`TreasuryStockValue`	$2.97M	USD	Point-in-time
Total common stock	`CommonStockValueCommonAndTreasury`	$2.65B	USD	Point-in-time
Total common stock	`CommonStockValueCommonAndTreasury`	$2.67B	USD	Point-in-time
Retained earnings	`RetainedEarningsAccumulatedDeficit`	$3.23B	USD	Point-in-time
Retained earnings	`RetainedEarningsAccumulatedDeficit`	$2.84B	USD	Point-in-time
Accumulated other comprehensive loss	`AccumulatedOtherComprehensiveIncomeLossNetOfTax`	$-57.49M	USD	Point-in-time
Accumulated other comprehensive loss	`AccumulatedOtherComprehensiveIncomeLossNetOfTax`	$-57.10M	USD	Point-in-time
Total shareholders equity	`StockholdersEquity`	$5.84B	USD	Point-in-time
Total shareholders equity	`StockholdersEquity`	$5.43B	USD	Point-in-time
Noncontrolling interests (Note 6)	`MinorityInterest`	$125.79M	USD	Point-in-time
Noncontrolling interests (Note 6)	`MinorityInterest`	$122.54M	USD	Point-in-time
Total equity	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$5.61B	USD	Point-in-time
Total equity	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$5.35B	USD	Point-in-time
Total equity	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$5.55B	USD	Point-in-time
Total equity	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$5.68B	USD	Point-in-time
Total equity	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$5.36B	USD	Point-in-time
Total equity	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$5.97B	USD	Point-in-time
TOTAL LIABILITIES AND EQUITY	`LiabilitiesAndStockholdersEquity`	$19.75B	USD	Point-in-time
TOTAL LIABILITIES AND EQUITY	`LiabilitiesAndStockholdersEquity`	$18.48B	USD	Point-in-time

Income Statement 100 line items

Line Item	Tag	Value	Unit	Period
OPERATING REVENUES (NOTE 2)	`Revenues`	$2.85B	USD	3 Qtrs
OPERATING REVENUES (NOTE 2)	`Revenues`	$2.80B	USD	3 Qtrs
OPERATING REVENUES (NOTE 2)	`Revenues`	$1.19B	USD	1 Quarter
OPERATING REVENUES (NOTE 2)	`Revenues`	$1.25B	USD	1 Quarter
Fuel and purchased power	`CostOfGoodsAndServiceExcludingDepreciationDepletionAndAmortization`	$817.67M	USD	3 Qtrs
Fuel and purchased power	`CostOfGoodsAndServiceExcludingDepreciationDepletionAndAmortization`	$344.86M	USD	1 Quarter
Fuel and purchased power	`CostOfGoodsAndServiceExcludingDepreciationDepletionAndAmortization`	$780.07M	USD	3 Qtrs
Fuel and purchased power	`CostOfGoodsAndServiceExcludingDepreciationDepletionAndAmortization`	$353.17M	USD	1 Quarter
Operations and maintenance	`UtilitiesOperatingExpenseMaintenanceAndOperations`	$236.97M	USD	1 Quarter
Operations and maintenance	`UtilitiesOperatingExpenseMaintenanceAndOperations`	$238.58M	USD	1 Quarter
Operations and maintenance	`UtilitiesOperatingExpenseMaintenanceAndOperations`	$677.68M	USD	3 Qtrs
Operations and maintenance	`UtilitiesOperatingExpenseMaintenanceAndOperations`	$711.76M	USD	3 Qtrs
Depreciation and amortization	`CostOfGoodsAndServicesSoldDepreciationAndAmortization`	$149.45M	USD	1 Quarter
Depreciation and amortization	`CostOfGoodsAndServicesSoldDepreciationAndAmortization`	$445.53M	USD	3 Qtrs
Depreciation and amortization	`CostOfGoodsAndServicesSoldDepreciationAndAmortization`	$152.70M	USD	1 Quarter
Depreciation and amortization	`CostOfGoodsAndServicesSoldDepreciationAndAmortization`	$459.26M	USD	3 Qtrs
Taxes other than income taxes	`TaxesExcludingIncomeAndExciseTaxes`	$163.99M	USD	3 Qtrs
Taxes other than income taxes	`TaxesExcludingIncomeAndExciseTaxes`	$54.98M	USD	1 Quarter
Taxes other than income taxes	`TaxesExcludingIncomeAndExciseTaxes`	$168.51M	USD	3 Qtrs
Taxes other than income taxes	`TaxesExcludingIncomeAndExciseTaxes`	$53.81M	USD	1 Quarter
Other expenses	`OtherCostAndExpenseOperating`	$1.68M	USD	1 Quarter
Other expenses	`OtherCostAndExpenseOperating`	$3.19M	USD	3 Qtrs
Other expenses	`OtherCostAndExpenseOperating`	$1.90M	USD	3 Qtrs
Other expenses	`OtherCostAndExpenseOperating`	$794.00K	USD	1 Quarter
Total	`CostsAndExpenses`	$2.14B	USD	3 Qtrs
Total	`CostsAndExpenses`	$2.09B	USD	3 Qtrs
Total	`CostsAndExpenses`	$799.49M	USD	1 Quarter
Total	`CostsAndExpenses`	$787.50M	USD	1 Quarter
OPERATING INCOME	`OperatingIncomeLoss`	$455.01M	USD	1 Quarter
OPERATING INCOME	`OperatingIncomeLoss`	$403.29M	USD	1 Quarter
OPERATING INCOME	`OperatingIncomeLoss`	$659.96M	USD	3 Qtrs
OPERATING INCOME	`OperatingIncomeLoss`	$757.30M	USD	3 Qtrs
Allowance for equity funds used during construction	`PublicUtilitiesAllowanceForFundsUsedDuringConstructionCapitalizedCostOfEquity`	$24.68M	USD	3 Qtrs
Allowance for equity funds used during construction	`PublicUtilitiesAllowanceForFundsUsedDuringConstructionCapitalizedCostOfEquity`	$5.92M	USD	1 Quarter
Allowance for equity funds used during construction	`PublicUtilitiesAllowanceForFundsUsedDuringConstructionCapitalizedCostOfEquity`	$24.65M	USD	3 Qtrs
Allowance for equity funds used during construction	`PublicUtilitiesAllowanceForFundsUsedDuringConstructionCapitalizedCostOfEquity`	$8.14M	USD	1 Quarter
Pension and other postretirement non-service credits - net	`PensionAndOtherPostretirementBenefitExpense`	$-14.12M	USD	1 Quarter
Pension and other postretirement non-service credits - net	`PensionAndOtherPostretirementBenefitExpense`	$-17.24M	USD	3 Qtrs
Pension and other postretirement non-service credits - net	`PensionAndOtherPostretirementBenefitExpense`	$-5.75M	USD	1 Quarter
Pension and other postretirement non-service credits - net	`PensionAndOtherPostretirementBenefitExpense`	$-42.17M	USD	3 Qtrs
Other income (Note 9)	`OtherNonoperatingIncome`	$13.88M	USD	1 Quarter
Other income (Note 9)	`OtherNonoperatingIncome`	$35.24M	USD	3 Qtrs
Other income (Note 9)	`OtherNonoperatingIncome`	$15.19M	USD	1 Quarter
Other income (Note 9)	`OtherNonoperatingIncome`	$42.89M	USD	3 Qtrs
Other expense (Note 9)	`OtherNonoperatingExpense`	$5.84M	USD	1 Quarter
Other expense (Note 9)	`OtherNonoperatingExpense`	$14.43M	USD	3 Qtrs
Other expense (Note 9)	`OtherNonoperatingExpense`	$5.74M	USD	1 Quarter
Other expense (Note 9)	`OtherNonoperatingExpense`	$14.45M	USD	3 Qtrs
Total	`NonoperatingIncomeExpense`	$30.30M	USD	1 Quarter
Total	`NonoperatingIncomeExpense`	$21.12M	USD	1 Quarter
Total	`NonoperatingIncomeExpense`	$62.71M	USD	3 Qtrs
Total	`NonoperatingIncomeExpense`	$95.28M	USD	3 Qtrs
Interest charges	`InterestCostsIncurred`	$183.42M	USD	3 Qtrs
Interest charges	`InterestCostsIncurred`	$61.50M	USD	1 Quarter
Interest charges	`InterestCostsIncurred`	$57.48M	USD	1 Quarter
Interest charges	`InterestCostsIncurred`	$175.60M	USD	3 Qtrs
Allowance for borrowed funds used during construction	`PublicUtilitiesAllowanceForFundsUsedDuringConstructionAdditions`	$3.49M	USD	1 Quarter
Allowance for borrowed funds used during construction	`PublicUtilitiesAllowanceForFundsUsedDuringConstructionAdditions`	$14.64M	USD	3 Qtrs
Allowance for borrowed funds used during construction	`PublicUtilitiesAllowanceForFundsUsedDuringConstructionAdditions`	$4.66M	USD	1 Quarter
Allowance for borrowed funds used during construction	`PublicUtilitiesAllowanceForFundsUsedDuringConstructionAdditions`	$13.49M	USD	3 Qtrs
Total	`InterestExpense`	$56.83M	USD	1 Quarter
Total	`InterestExpense`	$53.99M	USD	1 Quarter
Total	`InterestExpense`	$169.93M	USD	3 Qtrs
Total	`InterestExpense`	$160.95M	USD	3 Qtrs
INCOME BEFORE INCOME TAXES	`IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest`	$428.48M	USD	1 Quarter
INCOME BEFORE INCOME TAXES	`IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest`	$370.42M	USD	1 Quarter
INCOME BEFORE INCOME TAXES	`IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest`	$561.72M	USD	3 Qtrs
INCOME BEFORE INCOME TAXES	`IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest`	$682.66M	USD	3 Qtrs
INCOME TAXES	`IncomeTaxExpenseBenefit`	$53.27M	USD	1 Quarter
INCOME TAXES	`IncomeTaxExpenseBenefit`	$72.76M	USD	3 Qtrs
INCOME TAXES	`IncomeTaxExpenseBenefit`	$77.23M	USD	1 Quarter
INCOME TAXES	`IncomeTaxExpenseBenefit`	$98.09M	USD	3 Qtrs
NET INCOME	`ProfitLoss`	$317.15M	USD	1 Quarter
NET INCOME	`ProfitLoss`	$351.25M	USD	1 Quarter
NET INCOME	`ProfitLoss`	$584.57M	USD	3 Qtrs
NET INCOME	`ProfitLoss`	$488.96M	USD	3 Qtrs
Less: Net income attributable to noncontrolling interests (Note 6)	`NetIncomeLossAttributableToNoncontrollingInterest`	$14.62M	USD	3 Qtrs
Less: Net income attributable to noncontrolling interests (Note 6)	`NetIncomeLossAttributableToNoncontrollingInterest`	$4.87M	USD	1 Quarter
Less: Net income attributable to noncontrolling interests (Note 6)	`NetIncomeLossAttributableToNoncontrollingInterest`	$4.87M	USD	1 Quarter
Less: Net income attributable to noncontrolling interests (Note 6)	`NetIncomeLossAttributableToNoncontrollingInterest`	$14.62M	USD	3 Qtrs
NET INCOME ATTRIBUTABLE TO COMMON SHAREHOLDERS	`NetIncomeLossAvailableToCommonStockholdersBasic`	$474.34M	USD	3 Qtrs
NET INCOME ATTRIBUTABLE TO COMMON SHAREHOLDERS	`NetIncomeLossAvailableToCommonStockholdersBasic`	$346.37M	USD	1 Quarter
NET INCOME ATTRIBUTABLE TO COMMON SHAREHOLDERS	`NetIncomeLossAvailableToCommonStockholdersBasic`	$312.28M	USD	1 Quarter
NET INCOME ATTRIBUTABLE TO COMMON SHAREHOLDERS	`NetIncomeLossAvailableToCommonStockholdersBasic`	$569.95M	USD	3 Qtrs
WEIGHTED-AVERAGE COMMON SHARES OUTSTANDING - BASIC (in shares)	`WeightedAverageNumberOfSharesOutstandingBasic`	112.64M	shares	3 Qtrs
WEIGHTED-AVERAGE COMMON SHARES OUTSTANDING - BASIC (in shares)	`WeightedAverageNumberOfSharesOutstandingBasic`	112.68M	shares	1 Quarter
WEIGHTED-AVERAGE COMMON SHARES OUTSTANDING - BASIC (in shares)	`WeightedAverageNumberOfSharesOutstandingBasic`	112.41M	shares	3 Qtrs
WEIGHTED-AVERAGE COMMON SHARES OUTSTANDING - BASIC (in shares)	`WeightedAverageNumberOfSharesOutstandingBasic`	112.46M	shares	1 Quarter
WEIGHTED-AVERAGE COMMON SHARES OUTSTANDING - DILUTED (in shares)	`WeightedAverageNumberOfDilutedSharesOutstanding`	112.74M	shares	3 Qtrs
WEIGHTED-AVERAGE COMMON SHARES OUTSTANDING - DILUTED (in shares)	`WeightedAverageNumberOfDilutedSharesOutstanding`	112.99M	shares	1 Quarter
WEIGHTED-AVERAGE COMMON SHARES OUTSTANDING - DILUTED (in shares)	`WeightedAverageNumberOfDilutedSharesOutstanding`	112.91M	shares	3 Qtrs
WEIGHTED-AVERAGE COMMON SHARES OUTSTANDING - DILUTED (in shares)	`WeightedAverageNumberOfDilutedSharesOutstanding`	112.75M	shares	1 Quarter
Net income attributable to common shareholders - basic (in dollars per share)	`EarningsPerShareBasic`	$2.78	USD	1 Quarter
Net income attributable to common shareholders - basic (in dollars per share)	`EarningsPerShareBasic`	$3.07	USD	1 Quarter
Net income attributable to common shareholders - basic (in dollars per share)	`EarningsPerShareBasic`	$4.22	USD	3 Qtrs
Net income attributable to common shareholders - basic (in dollars per share)	`EarningsPerShareBasic`	$5.06	USD	3 Qtrs
Net income attributable to common shareholders - diluted (in dollars per share)	`EarningsPerShareDiluted`	$4.21	USD	3 Qtrs
Net income attributable to common shareholders - diluted (in dollars per share)	`EarningsPerShareDiluted`	$3.07	USD	1 Quarter
Net income attributable to common shareholders - diluted (in dollars per share)	`EarningsPerShareDiluted`	$5.05	USD	3 Qtrs
Net income attributable to common shareholders - diluted (in dollars per share)	`EarningsPerShareDiluted`	$2.77	USD	1 Quarter

Cash Flow Statement 84 line items

Line Item	Tag	Value	Unit	Period
NET INCOME	`ProfitLoss`	$317.15M	USD	1 Quarter
NET INCOME	`ProfitLoss`	$351.25M	USD	1 Quarter
NET INCOME	`ProfitLoss`	$584.57M	USD	3 Qtrs
NET INCOME	`ProfitLoss`	$488.96M	USD	3 Qtrs
Depreciation and amortization including nuclear fuel	`DepreciationDepletionAndAmortization`	$500.80M	USD	3 Qtrs
Depreciation and amortization including nuclear fuel	`DepreciationDepletionAndAmortization`	$515.74M	USD	3 Qtrs
Deferred fuel and purchased power	`IncreaseDecreaseInRegulatoryClauseRevenue`	$-82.68M	USD	3 Qtrs
Deferred fuel and purchased power	`IncreaseDecreaseInRegulatoryClauseRevenue`	$-60.91M	USD	3 Qtrs
Deferred fuel and purchased power amortization	`IncreaseDecreaseDeferredFuelAndPurchasedPowerAmortization`	$-9.29M	USD	3 Qtrs
Deferred fuel and purchased power amortization	`IncreaseDecreaseDeferredFuelAndPurchasedPowerAmortization`	$38.60M	USD	3 Qtrs
Allowance for equity funds used during construction	`PublicUtilitiesAllowanceForFundsUsedDuringConstructionCapitalizedCostOfEquity`	$24.68M	USD	3 Qtrs
Allowance for equity funds used during construction	`PublicUtilitiesAllowanceForFundsUsedDuringConstructionCapitalizedCostOfEquity`	$5.92M	USD	1 Quarter
Allowance for equity funds used during construction	`PublicUtilitiesAllowanceForFundsUsedDuringConstructionCapitalizedCostOfEquity`	$24.65M	USD	3 Qtrs
Allowance for equity funds used during construction	`PublicUtilitiesAllowanceForFundsUsedDuringConstructionCapitalizedCostOfEquity`	$8.14M	USD	1 Quarter
Deferred income taxes	`DeferredIncomeTaxExpenseBenefit`	$83.70M	USD	3 Qtrs
Deferred income taxes	`DeferredIncomeTaxExpenseBenefit`	$91.08M	USD	3 Qtrs
Deferred investment tax credit	`DeferredInvestmentTaxCredit`	$7.29M	USD	3 Qtrs
Deferred investment tax credit	`DeferredInvestmentTaxCredit`	$8.54M	USD	3 Qtrs
Stock compensation	`ShareBasedCompensation`	$16.49M	USD	3 Qtrs
Stock compensation	`ShareBasedCompensation`	$12.12M	USD	3 Qtrs
Customer and other receivables	`IncreaseDecreaseInAccountsAndNotesReceivable`	$91.51M	USD	3 Qtrs
Customer and other receivables	`IncreaseDecreaseInAccountsAndNotesReceivable`	$119.00M	USD	3 Qtrs
Accrued unbilled revenues	`IncreaseDecreaseInContractWithCustomerAsset`	$47.18M	USD	3 Qtrs
Accrued unbilled revenues	`IncreaseDecreaseInContractWithCustomerAsset`	$18.67M	USD	3 Qtrs
Materials, supplies and fossil fuel	`IncreaseDecreaseInInventories`	$18.33M	USD	3 Qtrs
Materials, supplies and fossil fuel	`IncreaseDecreaseInInventories`	$-6.84M	USD	3 Qtrs
Income tax receivable	`IncreaseDecreaseInIncomeTaxesReceivable`	$-17.40M	USD	3 Qtrs
Income tax receivable	`IncreaseDecreaseInIncomeTaxesReceivable`	$14.06M	USD	3 Qtrs
Other current assets	`IncreaseDecreaseInPrepaidExpense`	$10.10M	USD	3 Qtrs
Other current assets	`IncreaseDecreaseInPrepaidExpense`	$20.53M	USD	3 Qtrs
Accounts payable	`IncreaseDecreaseInAccountsPayable`	$-6.40M	USD	3 Qtrs
Accounts payable	`IncreaseDecreaseInAccountsPayable`	$33.90M	USD	3 Qtrs
Accrued taxes	`IncreaseDecreaseInAccruedTaxesPayable`	$66.11M	USD	3 Qtrs
Accrued taxes	`IncreaseDecreaseInAccruedTaxesPayable`	$76.46M	USD	3 Qtrs
Other current liabilities	`IncreaseDecreaseInOtherAccruedLiabilities`	$6.95M	USD	3 Qtrs
Other current liabilities	`IncreaseDecreaseInOtherAccruedLiabilities`	$-68.93M	USD	3 Qtrs
Change in other long-term assets	`IncreaseDecreaseInOtherOperatingAssets`	$10.15M	USD	3 Qtrs
Change in other long-term assets	`IncreaseDecreaseInOtherOperatingAssets`	$52.28M	USD	3 Qtrs
Change in other long-term liabilities	`IncreaseDecreaseInOtherOperatingLiabilities`	$-27.05M	USD	3 Qtrs
Change in other long-term liabilities	`IncreaseDecreaseInOtherOperatingLiabilities`	$-210.72M	USD	3 Qtrs
Net cash flow provided by operating activities	`NetCashProvidedByUsedInOperatingActivities`	$834.76M	USD	3 Qtrs
Net cash flow provided by operating activities	`NetCashProvidedByUsedInOperatingActivities`	$772.02M	USD	3 Qtrs
Capital expenditures	`PaymentsToAcquireProductiveAssets`	$857.88M	USD	3 Qtrs
Capital expenditures	`PaymentsToAcquireProductiveAssets`	$971.05M	USD	3 Qtrs
Contributions in aid of construction	`ProceedsFromContributionInAidOfConstruction`	$34.12M	USD	3 Qtrs
Contributions in aid of construction	`ProceedsFromContributionInAidOfConstruction`	$41.46M	USD	3 Qtrs
Allowance for borrowed funds used during construction	`AllowanceForFundsUsedDuringConstructionInvestingActivities`	$-13.49M	USD	3 Qtrs
Allowance for borrowed funds used during construction	`AllowanceForFundsUsedDuringConstructionInvestingActivities`	$-14.64M	USD	3 Qtrs
Proceeds from nuclear decommissioning trust sales and other special use funds	`ProceedsfromDecommissioningTrustFundAssetsAndOtherSpecialUseFunds`	$607.88M	USD	3 Qtrs
Proceeds from nuclear decommissioning trust sales and other special use funds	`ProceedsfromDecommissioningTrustFundAssetsAndOtherSpecialUseFunds`	$521.00M	USD	3 Qtrs
Investment in nuclear decommissioning trust and other special use funds	`PaymentstoAcquireInvestmentstobeHeldinDecommissioningTrustFundAndOtherSpecialUseFunds`	$523.57M	USD	3 Qtrs
Investment in nuclear decommissioning trust and other special use funds	`PaymentstoAcquireInvestmentstobeHeldinDecommissioningTrustFundAndOtherSpecialUseFunds`	$624.25M	USD	3 Qtrs
Other	`PaymentsForProceedsFromOtherInvestingActivities`	$-3.94M	USD	3 Qtrs
Other	`PaymentsForProceedsFromOtherInvestingActivities`	$-8.97M	USD	3 Qtrs
Net cash flow used for investing activities	`NetCashProvidedByUsedInInvestingActivities`	$-832.01M	USD	3 Qtrs
Net cash flow used for investing activities	`NetCashProvidedByUsedInInvestingActivities`	$-955.50M	USD	3 Qtrs
Issuance of long-term debt	`ProceedsFromIssuanceOfLongTermDebt`	$794.98M	USD	3 Qtrs
Issuance of long-term debt	`ProceedsFromIssuanceOfLongTermDebt`	$1.48B	USD	3 Qtrs
Short-term borrowing and payments net	`ProceedsfromRepaymentsofShorttermDebtNet`	$-6.03M	USD	3 Qtrs
Short-term borrowing and payments net	`ProceedsfromRepaymentsofShorttermDebtNet`	$-42.75M	USD	3 Qtrs
Short-term debt borrowings	`ProceedsFromLinesOfCredit`	$49.00M	USD	3 Qtrs
Short-term debt borrowings	`ProceedsFromLinesOfCredit`	$751.69M	USD	3 Qtrs
Short-term debt repayments	`RepaymentsOfLinesOfCredit`	$62.00M	USD	3 Qtrs
Short-term debt repayments	`RepaymentsOfLinesOfCredit`	$765.69M	USD	3 Qtrs
Repayment of long-term debt	`RepaymentsOfLongTermDebt`	$500.00M	USD	3 Qtrs
Repayment of long-term debt	`RepaymentsOfLongTermDebt`	$800.00M	USD	3 Qtrs
Dividends paid on common stock	`PaymentsOfDividendsCommonStock`	$243.12M	USD	3 Qtrs
Dividends paid on common stock	`PaymentsOfDividendsCommonStock`	$258.92M	USD	3 Qtrs
Common stock equity issuance - net of purchases	`ProceedsFromRepurchaseOfEquity`	$-1.65M	USD	3 Qtrs
Common stock equity issuance - net of purchases	`ProceedsFromRepurchaseOfEquity`	$-130.00K	USD	3 Qtrs
Distributions to noncontrolling interests	`PaymentsToMinorityShareholders`	$11.37M	USD	3 Qtrs
Distributions to noncontrolling interests	`PaymentsToMinorityShareholders`	$11.37M	USD	3 Qtrs
Net cash flow provided by financing activities	`NetCashProvidedByUsedInFinancingActivities`	$355.13M	USD	3 Qtrs
Net cash flow provided by financing activities	`NetCashProvidedByUsedInFinancingActivities`	$21.34M	USD	3 Qtrs
NET INCREASE IN CASH AND CASH EQUIVALENTS	`CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect`	$171.64M	USD	3 Qtrs
NET INCREASE IN CASH AND CASH EQUIVALENTS	`CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect`	$24.09M	USD	3 Qtrs
CASH AND CASH EQUIVALENTS AT BEGINNING OF PERIOD	`CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents`	$10.28M	USD	Point-in-time
CASH AND CASH EQUIVALENTS AT BEGINNING OF PERIOD	`CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents`	$29.85M	USD	Point-in-time
CASH AND CASH EQUIVALENTS AT BEGINNING OF PERIOD	`CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents`	$5.77M	USD	Point-in-time
CASH AND CASH EQUIVALENTS AT BEGINNING OF PERIOD	`CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents`	$181.93M	USD	Point-in-time
CASH AND CASH EQUIVALENTS AT END OF PERIOD	`CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents`	$10.28M	USD	Point-in-time
CASH AND CASH EQUIVALENTS AT END OF PERIOD	`CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents`	$29.85M	USD	Point-in-time
CASH AND CASH EQUIVALENTS AT END OF PERIOD	`CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents`	$5.77M	USD	Point-in-time
CASH AND CASH EQUIVALENTS AT END OF PERIOD	`CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents`	$181.93M	USD	Point-in-time

Stockholders Equity 47 line items

Line Item	Tag	Value	Unit	Period
DIVIDENDS DECLARED PER SHARE (in dollars per share)	`CommonStockDividendsPerShareDeclared`	$1.48	USD	3 Qtrs
DIVIDENDS DECLARED PER SHARE (in dollars per share)	`CommonStockDividendsPerShareDeclared`	$1.57	USD	3 Qtrs
Beginning balance (in shares)	`CommonStockSharesIssued`	112.62M	shares	Point-in-time
Beginning balance (in shares)	`CommonStockSharesIssued`	112.54M	shares	Point-in-time
Balance at beginning of period	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$5.61B	USD	Point-in-time
Balance at beginning of period	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$5.35B	USD	Point-in-time
Balance at beginning of period	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$5.55B	USD	Point-in-time
Balance at beginning of period	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$5.68B	USD	Point-in-time
Balance at beginning of period	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$5.36B	USD	Point-in-time
Balance at beginning of period	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$5.97B	USD	Point-in-time
Net Income	`ProfitLoss`	$317.15M	USD	1 Quarter
Net Income	`ProfitLoss`	$351.25M	USD	1 Quarter
Net Income	`ProfitLoss`	$584.57M	USD	3 Qtrs
Net Income	`ProfitLoss`	$488.96M	USD	3 Qtrs
Other comprehensive income (loss)	`OtherComprehensiveIncomeLossNetOfTax`	$384.00K	USD	1 Quarter
Other comprehensive income (loss)	`OtherComprehensiveIncomeLossNetOfTax`	$-395.00K	USD	3 Qtrs
Other comprehensive income (loss)	`OtherComprehensiveIncomeLossNetOfTax`	$1.10M	USD	1 Quarter
Other comprehensive income (loss)	`OtherComprehensiveIncomeLossNetOfTax`	$1.17M	USD	3 Qtrs
Dividends on common stock	`DividendsCommonStockNet`	$1.00K	USD	1 Quarter
Dividends on common stock	`DividendsCommonStock`	$5.00K	USD	1 Quarter
Dividends on common stock	`DividendsCommonStock`	$165.63M	USD	3 Qtrs
Dividends on common stock	`DividendsCommonStock`	$176.08M	USD	3 Qtrs
Issuance of common stock	`StockIssuedDuringPeriodValueNewIssues`	$10.80M	USD	3 Qtrs
Issuance of common stock	`StockIssuedDuringPeriodValueNewIssues`	$4.84M	USD	1 Quarter
Issuance of common stock	`StockIssuedDuringPeriodValueNewIssues`	$6.20M	USD	1 Quarter
Issuance of common stock	`StockIssuedDuringPeriodValueNewIssues`	$20.16M	USD	3 Qtrs
Purchase of treasury stock	`TreasuryStockValueAcquiredCostMethod`	$109.00K	USD	1 Quarter
Purchase of treasury stock	`TreasuryStockValueAcquiredCostMethod`	$6.89M	USD	3 Qtrs
Purchase of treasury stock	`TreasuryStockValueAcquiredCostMethod`	$3.12M	USD	3 Qtrs
Purchase of treasury stock	`TreasuryStockValueAcquiredCostMethod`	$10.00K	USD	1 Quarter
Reissuance of treasury stock for stock-based compensation and other	`StockIssuedDuringPeriodValueTreasuryStockReissued`	$333.00K	USD	1 Quarter
Reissuance of treasury stock for stock-based compensation and other	`StockIssuedDuringPeriodValueTreasuryStockReissued`	$33.00K	USD	1 Quarter
Reissuance of treasury stock for stock-based compensation and other	`StockIssuedDuringPeriodValueTreasuryStockReissued`	$6.60M	USD	3 Qtrs
Reissuance of treasury stock for stock-based compensation and other	`StockIssuedDuringPeriodValueTreasuryStockReissued`	$9.58M	USD	3 Qtrs
Other	`StockholdersEquityOther`	$-5.00K	USD	3 Qtrs
Other	`StockholdersEquityOther`	$-1.00K	USD	1 Quarter
Other	`StockholdersEquityOther`	$-4.00K	USD	1 Quarter
Capital activities by noncontrolling interests	`StockholdersEquityPeriodIncreaseDecrease`	$-11.37M	USD	3 Qtrs
Capital activities by noncontrolling interests	`StockholdersEquityPeriodIncreaseDecrease`	$-11.37M	USD	3 Qtrs
Ending balance (in shares)	`CommonStockSharesIssued`	112.62M	shares	Point-in-time
Ending balance (in shares)	`CommonStockSharesIssued`	112.54M	shares	Point-in-time
Balance at end of period	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$5.61B	USD	Point-in-time
Balance at end of period	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$5.35B	USD	Point-in-time
Balance at end of period	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$5.55B	USD	Point-in-time
Balance at end of period	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$5.68B	USD	Point-in-time
Balance at end of period	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$5.36B	USD	Point-in-time
Balance at end of period	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$5.97B	USD	Point-in-time

Comprehensive Income 44 line items

Line Item	Tag	Value	Unit	Period
NET INCOME	`ProfitLoss`	$317.15M	USD	1 Quarter
NET INCOME	`ProfitLoss`	$351.25M	USD	1 Quarter
Net unrealized loss, net of tax expense	`OtherComprehensiveIncomeLossCashFlowHedgeGainLossBeforeReclassificationTax`	-	USD	1 Quarter
Net unrealized loss, net of tax expense	`OtherComprehensiveIncomeLossCashFlowHedgeGainLossBeforeReclassificationTax`	-	USD	3 Qtrs
NET INCOME	`ProfitLoss`	$584.57M	USD	3 Qtrs
NET INCOME	`ProfitLoss`	$488.96M	USD	3 Qtrs
Net unrealized loss, net of tax expense	`OtherComprehensiveIncomeLossCashFlowHedgeGainLossBeforeReclassificationTax`	$-219.00K	USD	1 Quarter
Net unrealized loss, net of tax expense	`OtherComprehensiveIncomeLossCashFlowHedgeGainLossBeforeReclassificationTax`	$-1.02M	USD	3 Qtrs
Reclassification of net realized loss, net of tax benefit	`OtherComprehensiveIncomeLossCashFlowHedgeGainLossReclassificationTax`	$-71.00K	USD	1 Quarter
Reclassification of net realized loss, net of tax benefit	`OtherComprehensiveIncomeLossCashFlowHedgeGainLossReclassificationTax`	-	USD	1 Quarter
Reclassification of net realized loss, net of tax benefit	`OtherComprehensiveIncomeLossCashFlowHedgeGainLossReclassificationTax`	$-313.00K	USD	3 Qtrs
Reclassification of net realized loss, net of tax benefit	`OtherComprehensiveIncomeLossCashFlowHedgeGainLossReclassificationTax`	$-481.00K	USD	3 Qtrs
Pension and other postretirement benefits activity, net of tax expense (benefit)	`OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansTax`	$-290.00K	USD	1 Quarter
Pension and other postretirement benefits activity, net of tax expense (benefit)	`OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansTax`	$-256.00K	USD	3 Qtrs
Pension and other postretirement benefits activity, net of tax expense (benefit)	`OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansTax`	$-72.00K	USD	3 Qtrs
Pension and other postretirement benefits activity, net of tax expense (benefit)	`OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansTax`	$-345.00K	USD	1 Quarter
Net unrealized gain, net of tax expense	`OtherComprehensiveIncomeLossCashFlowHedgeGainLossBeforeReclassificationAfterTax`	$-1.92M	USD	3 Qtrs
Net unrealized gain, net of tax expense	`OtherComprehensiveIncomeLossCashFlowHedgeGainLossBeforeReclassificationAfterTax`	$-659.00K	USD	1 Quarter
Net unrealized gain, net of tax expense	`OtherComprehensiveIncomeLossCashFlowHedgeGainLossBeforeReclassificationAfterTax`	-	USD	3 Qtrs
Net unrealized gain, net of tax expense	`OtherComprehensiveIncomeLossCashFlowHedgeGainLossBeforeReclassificationAfterTax`	-	USD	1 Quarter
Reclassification of net realized loss, net of tax benefit	`OtherComprehensiveIncomeLossCashFlowHedgeGainLossReclassificationAfterTax`	$-218.00K	USD	1 Quarter
Reclassification of net realized loss, net of tax benefit	`OtherComprehensiveIncomeLossCashFlowHedgeGainLossReclassificationAfterTax`	$-282.00K	USD	3 Qtrs
Reclassification of net realized loss, net of tax benefit	`OtherComprehensiveIncomeLossCashFlowHedgeGainLossReclassificationAfterTax`	$-950.00K	USD	3 Qtrs
Reclassification of net realized loss, net of tax benefit	`OtherComprehensiveIncomeLossCashFlowHedgeGainLossReclassificationAfterTax`	-	USD	1 Quarter
Pension and other postretirement benefits activity, net of tax expense	`OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentNetOfTax`	$-880.00K	USD	1 Quarter
Pension and other postretirement benefits activity, net of tax expense	`OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentNetOfTax`	$-1.04M	USD	1 Quarter
Pension and other postretirement benefits activity, net of tax expense	`OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentNetOfTax`	$-1.24M	USD	3 Qtrs
Pension and other postretirement benefits activity, net of tax expense	`OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentNetOfTax`	$-220.00K	USD	3 Qtrs
Total other comprehensive income (loss)	`OtherComprehensiveIncomeLossNetOfTax`	$384.00K	USD	1 Quarter
Total other comprehensive income (loss)	`OtherComprehensiveIncomeLossNetOfTax`	$-395.00K	USD	3 Qtrs
Total other comprehensive income (loss)	`OtherComprehensiveIncomeLossNetOfTax`	$1.10M	USD	1 Quarter
Total other comprehensive income (loss)	`OtherComprehensiveIncomeLossNetOfTax`	$1.17M	USD	3 Qtrs
COMPREHENSIVE INCOME	`ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest`	$584.17M	USD	3 Qtrs
COMPREHENSIVE INCOME	`ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest`	$490.13M	USD	3 Qtrs
COMPREHENSIVE INCOME	`ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest`	$351.63M	USD	1 Quarter
COMPREHENSIVE INCOME	`ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest`	$318.25M	USD	1 Quarter
Less: Comprehensive income attributable to noncontrolling interests	`NetIncomeLossAttributableToNoncontrollingInterest`	$14.62M	USD	3 Qtrs
Less: Comprehensive income attributable to noncontrolling interests	`NetIncomeLossAttributableToNoncontrollingInterest`	$4.87M	USD	1 Quarter
Less: Comprehensive income attributable to noncontrolling interests	`NetIncomeLossAttributableToNoncontrollingInterest`	$4.87M	USD	1 Quarter
Less: Comprehensive income attributable to noncontrolling interests	`NetIncomeLossAttributableToNoncontrollingInterest`	$14.62M	USD	3 Qtrs
COMPREHENSIVE INCOME ATTRIBUTABLE TO COMMON SHAREHOLDERS	`ComprehensiveIncomeNetOfTax`	$346.76M	USD	1 Quarter
COMPREHENSIVE INCOME ATTRIBUTABLE TO COMMON SHAREHOLDERS	`ComprehensiveIncomeNetOfTax`	$313.37M	USD	1 Quarter
COMPREHENSIVE INCOME ATTRIBUTABLE TO COMMON SHAREHOLDERS	`ComprehensiveIncomeNetOfTax`	$475.51M	USD	3 Qtrs
COMPREHENSIVE INCOME ATTRIBUTABLE TO COMMON SHAREHOLDERS	`ComprehensiveIncomeNetOfTax`	$569.55M	USD	3 Qtrs

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