10-Q Filing

PINNACLE WEST CAPITAL CORP CIK: 764622 Q3 2025

Filing Information

Form Type	10-Q
Accession Number	`0000764622-25-000087`
Period End Date	20250930
Filing Date	20251103
Fiscal Year	2025
Fiscal Period	Q3
XBRL Instance	pnw-20250930_htm.xml

Filing Contents

This filing contains the following financial statements:

Balance Sheet 286 Income Statement 200 Cash Flow Statement 196 Stockholders Equity 96 Comprehensive Income 72

Balance Sheet 286 line items

Line Item	Tag	Value	Unit	Period
Common stock, authorized (in shares)	`CommonStockSharesAuthorized`	150.00M	shares	Point-in-time
Common stock, authorized (in shares)	`CommonStockSharesAuthorized`	150.00M	shares	Point-in-time
Common stock, authorized (in shares)	`CommonStockSharesAuthorized`	300.00M	shares	Point-in-time
Common stock, authorized (in shares)	`CommonStockSharesAuthorized`	300.00M	shares	Point-in-time
Common stock, authorized (in shares)	`CommonStockSharesAuthorized`	300.00M	shares	Point-in-time
Common stock, authorized (in shares)	`CommonStockSharesAuthorized`	300.00M	shares	Point-in-time
Common stock, issued (in shares)	`CommonStockSharesIssued`	119.14M	shares	Point-in-time
Common stock, issued (in shares)	`CommonStockSharesIssued`	119.14M	shares	Point-in-time
Common stock, issued (in shares)	`CommonStockSharesIssued`	119.74M	shares	Point-in-time
Common stock, issued (in shares)	`CommonStockSharesIssued`	119.74M	shares	Point-in-time
Cash and cash equivalents	`CashAndCashEquivalentsAtCarryingValue`	$3.84M	USD	Point-in-time
Cash and cash equivalents	`CashAndCashEquivalentsAtCarryingValue`	$3.84M	USD	Point-in-time
Cash and cash equivalents	`CashAndCashEquivalentsAtCarryingValue`	$30.89M	USD	Point-in-time
Cash and cash equivalents	`CashAndCashEquivalentsAtCarryingValue`	$30.89M	USD	Point-in-time
Treasury stock at cost (in shares)	`TreasuryStockCommonShares`	46,968.00	shares	Point-in-time
Treasury stock at cost (in shares)	`TreasuryStockCommonShares`	46,968.00	shares	Point-in-time
Treasury stock at cost (in shares)	`TreasuryStockCommonShares`	46,968.00	shares	Point-in-time
Treasury stock at cost (in shares)	`TreasuryStockCommonShares`	46,968.00	shares	Point-in-time
Customer and other receivables	`AccountsReceivableGrossCurrent`	$525.61M	USD	Point-in-time
Customer and other receivables	`AccountsReceivableGrossCurrent`	$525.61M	USD	Point-in-time
Customer and other receivables	`AccountsReceivableGrossCurrent`	$778.10M	USD	Point-in-time
Customer and other receivables	`AccountsReceivableGrossCurrent`	$778.10M	USD	Point-in-time
Accrued unbilled revenues (Note 4)	`ContractWithCustomerAssetNetCurrent`	$176.90M	USD	Point-in-time
Accrued unbilled revenues (Note 4)	`ContractWithCustomerAssetNetCurrent`	$176.90M	USD	Point-in-time
Accrued unbilled revenues (Note 4)	`ContractWithCustomerAssetNetCurrent`	$257.87M	USD	Point-in-time
Accrued unbilled revenues (Note 4)	`ContractWithCustomerAssetNetCurrent`	$257.87M	USD	Point-in-time
Allowance for doubtful accounts (Note 4)	`AllowanceForDoubtfulAccountsReceivableCurrent`	$24.85M	USD	Point-in-time
Allowance for doubtful accounts (Note 4)	`AllowanceForDoubtfulAccountsReceivableCurrent`	$24.85M	USD	Point-in-time
Allowance for doubtful accounts (Note 4)	`AllowanceForDoubtfulAccountsReceivableCurrent`	$21.87M	USD	Point-in-time
Allowance for doubtful accounts (Note 4)	`AllowanceForDoubtfulAccountsReceivableCurrent`	$21.87M	USD	Point-in-time
Materials and supplies (at average cost)	`OtherInventorySupplies`	$469.02M	USD	Point-in-time
Materials and supplies (at average cost)	`OtherInventorySupplies`	$469.02M	USD	Point-in-time
Materials and supplies (at average cost)	`OtherInventorySupplies`	$519.18M	USD	Point-in-time
Materials and supplies (at average cost)	`OtherInventorySupplies`	$519.18M	USD	Point-in-time
Fossil fuel (at average cost)	`EnergyRelatedInventoryOtherFossilFuel`	$32.42M	USD	Point-in-time
Fossil fuel (at average cost)	`EnergyRelatedInventoryOtherFossilFuel`	$32.42M	USD	Point-in-time
Fossil fuel (at average cost)	`EnergyRelatedInventoryOtherFossilFuel`	$19.52M	USD	Point-in-time
Fossil fuel (at average cost)	`EnergyRelatedInventoryOtherFossilFuel`	$19.52M	USD	Point-in-time
Assets from risk management activities (Note 9)	`DerivativeInstrumentsAndHedges`	$10.58M	USD	Point-in-time
Assets from risk management activities (Note 9)	`DerivativeInstrumentsAndHedges`	$10.58M	USD	Point-in-time
Assets from risk management activities (Note 9)	`DerivativeInstrumentsAndHedges`	$6.64M	USD	Point-in-time
Assets from risk management activities (Note 9)	`DerivativeInstrumentsAndHedges`	$6.64M	USD	Point-in-time
Deferred fuel and purchased power regulatory asset (Note 6)	`DeferredFuelAndPurchasedPowerRegulatoryAssetCurrent`	$287.60M	USD	Point-in-time
Deferred fuel and purchased power regulatory asset (Note 6)	`DeferredFuelAndPurchasedPowerRegulatoryAssetCurrent`	$287.60M	USD	Point-in-time
Deferred fuel and purchased power regulatory asset (Note 6)	`DeferredFuelAndPurchasedPowerRegulatoryAssetCurrent`	$205.05M	USD	Point-in-time
Deferred fuel and purchased power regulatory asset (Note 6)	`DeferredFuelAndPurchasedPowerRegulatoryAssetCurrent`	$205.05M	USD	Point-in-time
Other regulatory assets (Note 6)	`OtherRegulatoryAssetsCurrent`	$133.37M	USD	Point-in-time
Other regulatory assets (Note 6)	`OtherRegulatoryAssetsCurrent`	$133.37M	USD	Point-in-time
Other regulatory assets (Note 6)	`OtherRegulatoryAssetsCurrent`	$130.57M	USD	Point-in-time
Other regulatory assets (Note 6)	`OtherRegulatoryAssetsCurrent`	$130.57M	USD	Point-in-time
Other current assets	`OtherAssetsCurrent`	$74.92M	USD	Point-in-time
Other current assets	`OtherAssetsCurrent`	$74.92M	USD	Point-in-time
Other current assets	`OtherAssetsCurrent`	$74.71M	USD	Point-in-time
Other current assets	`OtherAssetsCurrent`	$74.71M	USD	Point-in-time
Total current assets	`AssetsCurrent`	$1.69B	USD	Point-in-time
Total current assets	`AssetsCurrent`	$1.69B	USD	Point-in-time
Total current assets	`AssetsCurrent`	$2.00B	USD	Point-in-time
Total current assets	`AssetsCurrent`	$2.00B	USD	Point-in-time
Nuclear decommissioning trusts (Notes 13 and 14)	`DecommissioningTrustAssetsAmount`	$1.28B	USD	Point-in-time
Nuclear decommissioning trusts (Notes 13 and 14)	`DecommissioningTrustAssetsAmount`	$1.28B	USD	Point-in-time
Nuclear decommissioning trusts (Notes 13 and 14)	`DecommissioningTrustAssetsAmount`	$1.39B	USD	Point-in-time
Nuclear decommissioning trusts (Notes 13 and 14)	`DecommissioningTrustAssetsAmount`	$1.39B	USD	Point-in-time
Other special use funds (Notes 13 and 14)	`CoalReclamationandUnionTrust`	$408.36M	USD	Point-in-time
Other special use funds (Notes 13 and 14)	`CoalReclamationandUnionTrust`	$408.36M	USD	Point-in-time
Other special use funds (Notes 13 and 14)	`CoalReclamationandUnionTrust`	$429.93M	USD	Point-in-time
Other special use funds (Notes 13 and 14)	`CoalReclamationandUnionTrust`	$429.93M	USD	Point-in-time
Assets from risk management activities (Note 9)	`CreditRiskDerivativeAssetsAtFairValue`	$5.98M	USD	Point-in-time
Assets from risk management activities (Note 9)	`CreditRiskDerivativeAssetsAtFairValue`	$5.98M	USD	Point-in-time
Assets from risk management activities (Note 9)	`CreditRiskDerivativeAssetsAtFairValue`	$15.60M	USD	Point-in-time
Assets from risk management activities (Note 9)	`CreditRiskDerivativeAssetsAtFairValue`	$15.60M	USD	Point-in-time
Other assets	`OtherAssetsNoncurrent`	$115.09M	USD	Point-in-time
Other assets	`OtherAssetsNoncurrent`	$115.09M	USD	Point-in-time
Other assets	`OtherAssetsNoncurrent`	$138.38M	USD	Point-in-time
Other assets	`OtherAssetsNoncurrent`	$138.38M	USD	Point-in-time
Total investments and other assets	`TotalInvestmentsAndOtherAssets`	$1.81B	USD	Point-in-time
Total investments and other assets	`TotalInvestmentsAndOtherAssets`	$1.81B	USD	Point-in-time
Total investments and other assets	`TotalInvestmentsAndOtherAssets`	$1.98B	USD	Point-in-time
Total investments and other assets	`TotalInvestmentsAndOtherAssets`	$1.98B	USD	Point-in-time
Plant in service and held for future use	`PropertyPlantAndEquipmentGross`	$25.86B	USD	Point-in-time
Plant in service and held for future use	`PropertyPlantAndEquipmentGross`	$25.86B	USD	Point-in-time
Plant in service and held for future use	`PropertyPlantAndEquipmentGross`	$26.27B	USD	Point-in-time
Plant in service and held for future use	`PropertyPlantAndEquipmentGross`	$26.27B	USD	Point-in-time
Accumulated depreciation and amortization	`AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment`	$9.03B	USD	Point-in-time
Accumulated depreciation and amortization	`AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment`	$9.03B	USD	Point-in-time
Accumulated depreciation and amortization	`AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment`	$8.95B	USD	Point-in-time
Accumulated depreciation and amortization	`AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment`	$8.95B	USD	Point-in-time
Net	`PropertyPlantAndEquipmentNet`	$16.83B	USD	Point-in-time
Net	`PropertyPlantAndEquipmentNet`	$16.83B	USD	Point-in-time
Net	`PropertyPlantAndEquipmentNet`	$17.32B	USD	Point-in-time
Net	`PropertyPlantAndEquipmentNet`	$17.32B	USD	Point-in-time
Construction work in progress	`ConstructionWorkInProgressGross`	$1.59B	USD	Point-in-time
Construction work in progress	`ConstructionWorkInProgressGross`	$1.59B	USD	Point-in-time
Construction work in progress	`ConstructionWorkInProgressGross`	$2.32B	USD	Point-in-time
Construction work in progress	`ConstructionWorkInProgressGross`	$2.32B	USD	Point-in-time
Palo Verde sale leaseback, net of accumulated depreciation (Note 8)	`PublicUtilitiesPropertyPlantAndEquipmentSaleLeasebackNet`	$82.56M	USD	Point-in-time
Palo Verde sale leaseback, net of accumulated depreciation (Note 8)	`PublicUtilitiesPropertyPlantAndEquipmentSaleLeasebackNet`	$82.56M	USD	Point-in-time
Palo Verde sale leaseback, net of accumulated depreciation (Note 8)	`PublicUtilitiesPropertyPlantAndEquipmentSaleLeasebackNet`	$32.42M	USD	Point-in-time
Palo Verde sale leaseback, net of accumulated depreciation (Note 8)	`PublicUtilitiesPropertyPlantAndEquipmentSaleLeasebackNet`	$32.42M	USD	Point-in-time
Intangible assets, net of accumulated amortization	`IntangibleAssetsNetExcludingGoodwill`	$591.31M	USD	Point-in-time
Intangible assets, net of accumulated amortization	`IntangibleAssetsNetExcludingGoodwill`	$591.31M	USD	Point-in-time
Intangible assets, net of accumulated amortization	`IntangibleAssetsNetExcludingGoodwill`	$544.36M	USD	Point-in-time
Intangible assets, net of accumulated amortization	`IntangibleAssetsNetExcludingGoodwill`	$544.36M	USD	Point-in-time
Nuclear fuel, net of accumulated amortization	`NuclearFuelNetOfAmortization`	$97.85M	USD	Point-in-time
Nuclear fuel, net of accumulated amortization	`NuclearFuelNetOfAmortization`	$97.85M	USD	Point-in-time
Nuclear fuel, net of accumulated amortization	`NuclearFuelNetOfAmortization`	$115.10M	USD	Point-in-time
Nuclear fuel, net of accumulated amortization	`NuclearFuelNetOfAmortization`	$115.10M	USD	Point-in-time
Total property, plant and equipment	`PublicUtilitiesPropertyPlantAndEquipmentNet`	$19.20B	USD	Point-in-time
Total property, plant and equipment	`PublicUtilitiesPropertyPlantAndEquipmentNet`	$19.20B	USD	Point-in-time
Total property, plant and equipment	`PublicUtilitiesPropertyPlantAndEquipmentNet`	$20.33B	USD	Point-in-time
Total property, plant and equipment	`PublicUtilitiesPropertyPlantAndEquipmentNet`	$20.33B	USD	Point-in-time
Regulatory assets (Note 6)	`RegulatoryAssetsNoncurrent`	$1.39B	USD	Point-in-time
Regulatory assets (Note 6)	`RegulatoryAssetsNoncurrent`	$1.39B	USD	Point-in-time
Regulatory assets (Note 6)	`RegulatoryAssetsNoncurrent`	$1.47B	USD	Point-in-time
Regulatory assets (Note 6)	`RegulatoryAssetsNoncurrent`	$1.47B	USD	Point-in-time
Operating lease right-of-use assets (Note 16)	`OperatingLeaseRightOfUseAsset`	$1.61B	USD	Point-in-time
Operating lease right-of-use assets (Note 16)	`OperatingLeaseRightOfUseAsset`	$1.61B	USD	Point-in-time
Operating lease right-of-use assets (Note 16)	`OperatingLeaseRightOfUseAsset`	$3.65B	USD	Point-in-time
Operating lease right-of-use assets (Note 16)	`OperatingLeaseRightOfUseAsset`	$3.65B	USD	Point-in-time
Assets for pension and other postretirement benefits (Note 7)	`DefinedBenefitPlanAssetsForPlanBenefitsNoncurrent`	$342.10M	USD	Point-in-time
Assets for pension and other postretirement benefits (Note 7)	`DefinedBenefitPlanAssetsForPlanBenefitsNoncurrent`	$342.10M	USD	Point-in-time
Assets for pension and other postretirement benefits (Note 7)	`DefinedBenefitPlanAssetsForPlanBenefitsNoncurrent`	$376.34M	USD	Point-in-time
Assets for pension and other postretirement benefits (Note 7)	`DefinedBenefitPlanAssetsForPlanBenefitsNoncurrent`	$376.34M	USD	Point-in-time
Other	`OtherDeferredCostsNet`	$66.13M	USD	Point-in-time
Other	`OtherDeferredCostsNet`	$66.13M	USD	Point-in-time
Other	`OtherDeferredCostsNet`	$83.75M	USD	Point-in-time
Other	`OtherDeferredCostsNet`	$83.75M	USD	Point-in-time
Total deferred debits	`TotalDeferredDebits`	$3.40B	USD	Point-in-time
Total deferred debits	`TotalDeferredDebits`	$3.40B	USD	Point-in-time
Total deferred debits	`TotalDeferredDebits`	$5.58B	USD	Point-in-time
Total deferred debits	`TotalDeferredDebits`	$5.58B	USD	Point-in-time
TOTAL ASSETS	`Assets`	$26.10B	USD	Point-in-time
TOTAL ASSETS	`Assets`	$26.10B	USD	Point-in-time
TOTAL ASSETS	`Assets`	$29.89B	USD	Point-in-time
TOTAL ASSETS	`Assets`	$29.89B	USD	Point-in-time
Accounts payable	`AccountsPayableCurrent`	$485.43M	USD	Point-in-time
Accounts payable	`AccountsPayableCurrent`	$485.43M	USD	Point-in-time
Accounts payable	`AccountsPayableCurrent`	$536.92M	USD	Point-in-time
Accounts payable	`AccountsPayableCurrent`	$536.92M	USD	Point-in-time
Accrued taxes	`TaxesPayableCurrent`	$175.86M	USD	Point-in-time
Accrued taxes	`TaxesPayableCurrent`	$175.86M	USD	Point-in-time
Accrued taxes	`TaxesPayableCurrent`	$348.38M	USD	Point-in-time
Accrued taxes	`TaxesPayableCurrent`	$348.38M	USD	Point-in-time
Accrued interest	`InterestPayableCurrent`	$81.80M	USD	Point-in-time
Accrued interest	`InterestPayableCurrent`	$81.80M	USD	Point-in-time
Accrued interest	`InterestPayableCurrent`	$99.23M	USD	Point-in-time
Accrued interest	`InterestPayableCurrent`	$99.23M	USD	Point-in-time
Common dividends payable	`DividendsPayableCurrent`	$106.59M	USD	Point-in-time
Common dividends payable	`DividendsPayableCurrent`	$106.59M	USD	Point-in-time
Common dividends payable	`DividendsPayableCurrent`	-	USD	Point-in-time
Common dividends payable	`DividendsPayableCurrent`	-	USD	Point-in-time
Short-term borrowings (Note 5)	`ShortTermBorrowings`	$568.45M	USD	Point-in-time
Short-term borrowings (Note 5)	`ShortTermBorrowings`	$568.45M	USD	Point-in-time
Short-term borrowings (Note 5)	`ShortTermBorrowings`	$675.70M	USD	Point-in-time
Short-term borrowings (Note 5)	`ShortTermBorrowings`	$675.70M	USD	Point-in-time
Current maturities of long-term debt (Note 5)	`LongTermDebtCurrent`	$800.00M	USD	Point-in-time
Current maturities of long-term debt (Note 5)	`LongTermDebtCurrent`	$800.00M	USD	Point-in-time
Current maturities of long-term debt (Note 5)	`LongTermDebtCurrent`	$600.00M	USD	Point-in-time
Current maturities of long-term debt (Note 5)	`LongTermDebtCurrent`	$600.00M	USD	Point-in-time
Customer deposits	`ContractWithCustomerLiabilityCurrent`	$44.34M	USD	Point-in-time
Customer deposits	`ContractWithCustomerLiabilityCurrent`	$44.34M	USD	Point-in-time
Customer deposits	`ContractWithCustomerLiabilityCurrent`	$61.72M	USD	Point-in-time
Customer deposits	`ContractWithCustomerLiabilityCurrent`	$61.72M	USD	Point-in-time
Liabilities from risk management activities (Note 9)	`DerivativeInstrumentsAndHedgesLiabilities`	$52.34M	USD	Point-in-time
Liabilities from risk management activities (Note 9)	`DerivativeInstrumentsAndHedgesLiabilities`	$52.34M	USD	Point-in-time
Liabilities from risk management activities (Note 9)	`DerivativeInstrumentsAndHedgesLiabilities`	$39.08M	USD	Point-in-time
Liabilities from risk management activities (Note 9)	`DerivativeInstrumentsAndHedgesLiabilities`	$39.08M	USD	Point-in-time
Liabilities for asset retirements (Note 17)	`AssetRetirementObligationCurrent`	$50.01M	USD	Point-in-time
Liabilities for asset retirements (Note 17)	`AssetRetirementObligationCurrent`	$50.01M	USD	Point-in-time
Liabilities for asset retirements (Note 17)	`AssetRetirementObligationCurrent`	$59.80M	USD	Point-in-time
Liabilities for asset retirements (Note 17)	`AssetRetirementObligationCurrent`	$59.80M	USD	Point-in-time
Operating lease liabilities (Note 16)	`OperatingLeaseLiabilityCurrent`	$100.37M	USD	Point-in-time
Operating lease liabilities (Note 16)	`OperatingLeaseLiabilityCurrent`	$100.37M	USD	Point-in-time
Operating lease liabilities (Note 16)	`OperatingLeaseLiabilityCurrent`	$203.74M	USD	Point-in-time
Operating lease liabilities (Note 16)	`OperatingLeaseLiabilityCurrent`	$203.74M	USD	Point-in-time
Regulatory liabilities (Note 6)	`RegulatoryLiabilityCurrent`	$206.96M	USD	Point-in-time
Regulatory liabilities (Note 6)	`RegulatoryLiabilityCurrent`	$206.96M	USD	Point-in-time
Regulatory liabilities (Note 6)	`RegulatoryLiabilityCurrent`	$194.09M	USD	Point-in-time
Regulatory liabilities (Note 6)	`RegulatoryLiabilityCurrent`	$194.09M	USD	Point-in-time
Other current liabilities	`OtherLiabilitiesCurrent`	$171.65M	USD	Point-in-time
Other current liabilities	`OtherLiabilitiesCurrent`	$171.65M	USD	Point-in-time
Other current liabilities	`OtherLiabilitiesCurrent`	$146.82M	USD	Point-in-time
Other current liabilities	`OtherLiabilitiesCurrent`	$146.82M	USD	Point-in-time
Total current liabilities	`LiabilitiesCurrent`	$2.84B	USD	Point-in-time
Total current liabilities	`LiabilitiesCurrent`	$2.84B	USD	Point-in-time
Total current liabilities	`LiabilitiesCurrent`	$2.97B	USD	Point-in-time
Total current liabilities	`LiabilitiesCurrent`	$2.97B	USD	Point-in-time
LONG-TERM DEBT LESS CURRENT MATURITIES (Note 5)	`LongTermDebtNoncurrent`	$8.06B	USD	Point-in-time
LONG-TERM DEBT LESS CURRENT MATURITIES (Note 5)	`LongTermDebtNoncurrent`	$8.06B	USD	Point-in-time
LONG-TERM DEBT LESS CURRENT MATURITIES (Note 5)	`LongTermDebtNoncurrent`	$9.20B	USD	Point-in-time
LONG-TERM DEBT LESS CURRENT MATURITIES (Note 5)	`LongTermDebtNoncurrent`	$9.20B	USD	Point-in-time
Deferred income taxes	`DeferredIncomeTaxLiabilitiesNet`	$2.44B	USD	Point-in-time
Deferred income taxes	`DeferredIncomeTaxLiabilitiesNet`	$2.44B	USD	Point-in-time
Deferred income taxes	`DeferredIncomeTaxLiabilitiesNet`	$2.49B	USD	Point-in-time
Deferred income taxes	`DeferredIncomeTaxLiabilitiesNet`	$2.49B	USD	Point-in-time
Regulatory liabilities (Note 6)	`RegulatoryLiabilityNoncurrent`	$1.86B	USD	Point-in-time
Regulatory liabilities (Note 6)	`RegulatoryLiabilityNoncurrent`	$1.86B	USD	Point-in-time
Regulatory liabilities (Note 6)	`RegulatoryLiabilityNoncurrent`	$1.77B	USD	Point-in-time
Regulatory liabilities (Note 6)	`RegulatoryLiabilityNoncurrent`	$1.77B	USD	Point-in-time
Liabilities for asset retirements (Note 17)	`AssetRetirementObligationsNoncurrent`	$1.10B	USD	Point-in-time
Liabilities for asset retirements (Note 17)	`AssetRetirementObligationsNoncurrent`	$1.10B	USD	Point-in-time
Liabilities for asset retirements (Note 17)	`AssetRetirementObligationsNoncurrent`	$1.16B	USD	Point-in-time
Liabilities for asset retirements (Note 17)	`AssetRetirementObligationsNoncurrent`	$1.16B	USD	Point-in-time
Liabilities for pension benefits (Note 7)	`DefinedBenefitPensionPlanLiabilitiesNoncurrent`	$139.32M	USD	Point-in-time
Liabilities for pension benefits (Note 7)	`DefinedBenefitPensionPlanLiabilitiesNoncurrent`	$139.32M	USD	Point-in-time
Liabilities for pension benefits (Note 7)	`DefinedBenefitPensionPlanLiabilitiesNoncurrent`	$150.09M	USD	Point-in-time
Liabilities for pension benefits (Note 7)	`DefinedBenefitPensionPlanLiabilitiesNoncurrent`	$150.09M	USD	Point-in-time
Liabilities from risk management activities (Note 9)	`DerivativeLiabilitiesNoncurrent`	$9.45M	USD	Point-in-time
Liabilities from risk management activities (Note 9)	`DerivativeLiabilitiesNoncurrent`	$9.45M	USD	Point-in-time
Liabilities from risk management activities (Note 9)	`DerivativeLiabilitiesNoncurrent`	-	USD	Point-in-time
Liabilities from risk management activities (Note 9)	`DerivativeLiabilitiesNoncurrent`	-	USD	Point-in-time
Customer advances	`ContractWithCustomerLiabilityNoncurrent`	$569.34M	USD	Point-in-time
Customer advances	`ContractWithCustomerLiabilityNoncurrent`	$569.34M	USD	Point-in-time
Customer advances	`ContractWithCustomerLiabilityNoncurrent`	$661.27M	USD	Point-in-time
Customer advances	`ContractWithCustomerLiabilityNoncurrent`	$661.27M	USD	Point-in-time
Coal mine reclamation	`RecordedUnconditionalPurchaseObligation`	$171.48M	USD	Point-in-time
Coal mine reclamation	`RecordedUnconditionalPurchaseObligation`	$171.48M	USD	Point-in-time
Coal mine reclamation	`RecordedUnconditionalPurchaseObligation`	$157.59M	USD	Point-in-time
Coal mine reclamation	`RecordedUnconditionalPurchaseObligation`	$157.59M	USD	Point-in-time
Deferred investment tax credit	`AccumulatedDeferredInvestmentTaxCredit`	$249.49M	USD	Point-in-time
Deferred investment tax credit	`AccumulatedDeferredInvestmentTaxCredit`	$249.49M	USD	Point-in-time
Deferred investment tax credit	`AccumulatedDeferredInvestmentTaxCredit`	$239.47M	USD	Point-in-time
Deferred investment tax credit	`AccumulatedDeferredInvestmentTaxCredit`	$239.47M	USD	Point-in-time
Unrecognized tax benefits	`LiabilityForUncertainTaxPositionsNoncurrent`	$44.23M	USD	Point-in-time
Unrecognized tax benefits	`LiabilityForUncertainTaxPositionsNoncurrent`	$44.23M	USD	Point-in-time
Unrecognized tax benefits	`LiabilityForUncertainTaxPositionsNoncurrent`	$87.25M	USD	Point-in-time
Unrecognized tax benefits	`LiabilityForUncertainTaxPositionsNoncurrent`	$87.25M	USD	Point-in-time
Operating lease liabilities (Note 16)	`OperatingLeaseLiabilityNoncurrent`	$1.52B	USD	Point-in-time
Operating lease liabilities (Note 16)	`OperatingLeaseLiabilityNoncurrent`	$1.52B	USD	Point-in-time
Operating lease liabilities (Note 16)	`OperatingLeaseLiabilityNoncurrent`	$3.56B	USD	Point-in-time
Operating lease liabilities (Note 16)	`OperatingLeaseLiabilityNoncurrent`	$3.56B	USD	Point-in-time
Other	`OtherLiabilitiesNoncurrent`	$242.32M	USD	Point-in-time
Other	`OtherLiabilitiesNoncurrent`	$242.32M	USD	Point-in-time
Other	`OtherLiabilitiesNoncurrent`	$232.85M	USD	Point-in-time
Other	`OtherLiabilitiesNoncurrent`	$232.85M	USD	Point-in-time
Total deferred credits and other	`DeferredCreditsAndOtherLiabilities`	$8.34B	USD	Point-in-time
Total deferred credits and other	`DeferredCreditsAndOtherLiabilities`	$8.34B	USD	Point-in-time
Total deferred credits and other	`DeferredCreditsAndOtherLiabilities`	$10.51B	USD	Point-in-time
Total deferred credits and other	`DeferredCreditsAndOtherLiabilities`	$10.51B	USD	Point-in-time
COMMITMENTS AND CONTINGENCIES (Note 10)	`CommitmentsAndContingencies`	-	USD	Point-in-time
COMMITMENTS AND CONTINGENCIES (Note 10)	`CommitmentsAndContingencies`	-	USD	Point-in-time
COMMITMENTS AND CONTINGENCIES (Note 10)	`CommitmentsAndContingencies`	-	USD	Point-in-time
COMMITMENTS AND CONTINGENCIES (Note 10)	`CommitmentsAndContingencies`	-	USD	Point-in-time
Common stock, no par value; 300,000,000 and 150,000,000 shares authorized at respective dates, 119,736,525 and 119,143,782 shares issued at respective dates	`CommonStockValue`	$3.12B	USD	Point-in-time
Common stock, no par value; 300,000,000 and 150,000,000 shares authorized at respective dates, 119,736,525 and 119,143,782 shares issued at respective dates	`CommonStockValue`	$3.12B	USD	Point-in-time
Common stock, no par value; 300,000,000 and 150,000,000 shares authorized at respective dates, 119,736,525 and 119,143,782 shares issued at respective dates	`CommonStockValue`	$3.15B	USD	Point-in-time
Common stock, no par value; 300,000,000 and 150,000,000 shares authorized at respective dates, 119,736,525 and 119,143,782 shares issued at respective dates	`CommonStockValue`	$3.15B	USD	Point-in-time
Treasury stock at cost; 46,968 and 46,968 shares at respective dates	`TreasuryStockValue`	$3.32M	USD	Point-in-time
Treasury stock at cost; 46,968 and 46,968 shares at respective dates	`TreasuryStockValue`	$3.32M	USD	Point-in-time
Treasury stock at cost; 46,968 and 46,968 shares at respective dates	`TreasuryStockValue`	$3.32M	USD	Point-in-time
Treasury stock at cost; 46,968 and 46,968 shares at respective dates	`TreasuryStockValue`	$3.32M	USD	Point-in-time
Total common stock	`CommonStockValueCommonAndTreasury`	$3.12B	USD	Point-in-time
Total common stock	`CommonStockValueCommonAndTreasury`	$3.12B	USD	Point-in-time
Total common stock	`CommonStockValueCommonAndTreasury`	$3.14B	USD	Point-in-time
Total common stock	`CommonStockValueCommonAndTreasury`	$3.14B	USD	Point-in-time
Retained earnings	`RetainedEarningsAccumulatedDeficit`	$3.67B	USD	Point-in-time
Retained earnings	`RetainedEarningsAccumulatedDeficit`	$3.67B	USD	Point-in-time
Retained earnings	`RetainedEarningsAccumulatedDeficit`	$4.05B	USD	Point-in-time
Retained earnings	`RetainedEarningsAccumulatedDeficit`	$4.05B	USD	Point-in-time
Accumulated other comprehensive loss (Note 15)	`AccumulatedOtherComprehensiveIncomeLossNetOfTax`	$-30.94M	USD	Point-in-time
Accumulated other comprehensive loss (Note 15)	`AccumulatedOtherComprehensiveIncomeLossNetOfTax`	$-30.94M	USD	Point-in-time
Accumulated other comprehensive loss (Note 15)	`AccumulatedOtherComprehensiveIncomeLossNetOfTax`	$-30.09M	USD	Point-in-time
Accumulated other comprehensive loss (Note 15)	`AccumulatedOtherComprehensiveIncomeLossNetOfTax`	$-30.09M	USD	Point-in-time
Total shareholder equity	`StockholdersEquity`	$6.75B	USD	Point-in-time
Total shareholder equity	`StockholdersEquity`	$6.75B	USD	Point-in-time
Total shareholder equity	`StockholdersEquity`	$7.17B	USD	Point-in-time
Total shareholder equity	`StockholdersEquity`	$7.17B	USD	Point-in-time
Noncontrolling interests (Note 8)	`MinorityInterest`	$103.17M	USD	Point-in-time
Noncontrolling interests (Note 8)	`MinorityInterest`	$103.17M	USD	Point-in-time
Noncontrolling interests (Note 8)	`MinorityInterest`	$43.08M	USD	Point-in-time
Noncontrolling interests (Note 8)	`MinorityInterest`	$43.08M	USD	Point-in-time
Total equity	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$6.28B	USD	Point-in-time
Total equity	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$6.28B	USD	Point-in-time
Total equity	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$6.32B	USD	Point-in-time
Total equity	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$6.32B	USD	Point-in-time
Total equity	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$6.73B	USD	Point-in-time
Total equity	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$6.73B	USD	Point-in-time
Total equity	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$6.86B	USD	Point-in-time
Total equity	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$6.86B	USD	Point-in-time
Total equity	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$6.83B	USD	Point-in-time
Total equity	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$6.83B	USD	Point-in-time
Total equity	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$7.21B	USD	Point-in-time
Total equity	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$7.21B	USD	Point-in-time
TOTAL LIABILITIES AND EQUITY	`LiabilitiesAndStockholdersEquity`	$26.10B	USD	Point-in-time
TOTAL LIABILITIES AND EQUITY	`LiabilitiesAndStockholdersEquity`	$26.10B	USD	Point-in-time
TOTAL LIABILITIES AND EQUITY	`LiabilitiesAndStockholdersEquity`	$29.89B	USD	Point-in-time
TOTAL LIABILITIES AND EQUITY	`LiabilitiesAndStockholdersEquity`	$29.89B	USD	Point-in-time

Income Statement 200 line items

Line Item	Tag	Value	Unit	Period
OPERATING REVENUES (Note 4)	`Revenues`	$1.77B	USD	1 Quarter
OPERATING REVENUES (Note 4)	`Revenues`	$1.77B	USD	1 Quarter
OPERATING REVENUES (Note 4)	`Revenues`	$4.03B	USD	3 Qtrs
OPERATING REVENUES (Note 4)	`Revenues`	$4.03B	USD	3 Qtrs
OPERATING REVENUES (Note 4)	`Revenues`	$1.82B	USD	1 Quarter
OPERATING REVENUES (Note 4)	`Revenues`	$1.82B	USD	1 Quarter
OPERATING REVENUES (Note 4)	`Revenues`	$4.21B	USD	3 Qtrs
OPERATING REVENUES (Note 4)	`Revenues`	$4.21B	USD	3 Qtrs
Fuel and purchased power	`CostOfGoodsAndServiceExcludingDepreciationDepletionAndAmortization`	$631.38M	USD	1 Quarter
Fuel and purchased power	`CostOfGoodsAndServiceExcludingDepreciationDepletionAndAmortization`	$631.38M	USD	1 Quarter
Fuel and purchased power	`CostOfGoodsAndServiceExcludingDepreciationDepletionAndAmortization`	$1.43B	USD	3 Qtrs
Fuel and purchased power	`CostOfGoodsAndServiceExcludingDepreciationDepletionAndAmortization`	$1.43B	USD	3 Qtrs
Fuel and purchased power	`CostOfGoodsAndServiceExcludingDepreciationDepletionAndAmortization`	$655.97M	USD	1 Quarter
Fuel and purchased power	`CostOfGoodsAndServiceExcludingDepreciationDepletionAndAmortization`	$655.97M	USD	1 Quarter
Fuel and purchased power	`CostOfGoodsAndServiceExcludingDepreciationDepletionAndAmortization`	$1.51B	USD	3 Qtrs
Fuel and purchased power	`CostOfGoodsAndServiceExcludingDepreciationDepletionAndAmortization`	$1.51B	USD	3 Qtrs
Operations and maintenance	`UtilitiesOperatingExpenseMaintenanceAndOperations`	$308.06M	USD	1 Quarter
Operations and maintenance	`UtilitiesOperatingExpenseMaintenanceAndOperations`	$308.06M	USD	1 Quarter
Operations and maintenance	`UtilitiesOperatingExpenseMaintenanceAndOperations`	$837.90M	USD	3 Qtrs
Operations and maintenance	`UtilitiesOperatingExpenseMaintenanceAndOperations`	$837.90M	USD	3 Qtrs
Operations and maintenance	`UtilitiesOperatingExpenseMaintenanceAndOperations`	$299.62M	USD	1 Quarter
Operations and maintenance	`UtilitiesOperatingExpenseMaintenanceAndOperations`	$299.62M	USD	1 Quarter
Operations and maintenance	`UtilitiesOperatingExpenseMaintenanceAndOperations`	$886.33M	USD	3 Qtrs
Operations and maintenance	`UtilitiesOperatingExpenseMaintenanceAndOperations`	$886.33M	USD	3 Qtrs
Depreciation and amortization	`CostOfGoodsAndServicesSoldDepreciationAndAmortization`	$229.45M	USD	1 Quarter
Depreciation and amortization	`CostOfGoodsAndServicesSoldDepreciationAndAmortization`	$229.45M	USD	1 Quarter
Depreciation and amortization	`CostOfGoodsAndServicesSoldDepreciationAndAmortization`	$664.76M	USD	3 Qtrs
Depreciation and amortization	`CostOfGoodsAndServicesSoldDepreciationAndAmortization`	$664.76M	USD	3 Qtrs
Depreciation and amortization	`CostOfGoodsAndServicesSoldDepreciationAndAmortization`	$224.56M	USD	1 Quarter
Depreciation and amortization	`CostOfGoodsAndServicesSoldDepreciationAndAmortization`	$224.56M	USD	1 Quarter
Depreciation and amortization	`CostOfGoodsAndServicesSoldDepreciationAndAmortization`	$688.39M	USD	3 Qtrs
Depreciation and amortization	`CostOfGoodsAndServicesSoldDepreciationAndAmortization`	$688.39M	USD	3 Qtrs
Taxes other than income taxes	`TaxesExcludingIncomeAndExciseTaxes`	$52.78M	USD	1 Quarter
Taxes other than income taxes	`TaxesExcludingIncomeAndExciseTaxes`	$52.78M	USD	1 Quarter
Taxes other than income taxes	`TaxesExcludingIncomeAndExciseTaxes`	$170.59M	USD	3 Qtrs
Taxes other than income taxes	`TaxesExcludingIncomeAndExciseTaxes`	$170.59M	USD	3 Qtrs
Taxes other than income taxes	`TaxesExcludingIncomeAndExciseTaxes`	$58.42M	USD	1 Quarter
Taxes other than income taxes	`TaxesExcludingIncomeAndExciseTaxes`	$58.42M	USD	1 Quarter
Taxes other than income taxes	`TaxesExcludingIncomeAndExciseTaxes`	$175.42M	USD	3 Qtrs
Taxes other than income taxes	`TaxesExcludingIncomeAndExciseTaxes`	$175.42M	USD	3 Qtrs
Other expense	`OtherCostAndExpenseOperating`	$145.00K	USD	1 Quarter
Other expense	`OtherCostAndExpenseOperating`	$145.00K	USD	1 Quarter
Other expense	`OtherCostAndExpenseOperating`	$2.31M	USD	3 Qtrs
Other expense	`OtherCostAndExpenseOperating`	$2.31M	USD	3 Qtrs
Other expense	`OtherCostAndExpenseOperating`	$338.00K	USD	1 Quarter
Other expense	`OtherCostAndExpenseOperating`	$338.00K	USD	1 Quarter
Other expense	`OtherCostAndExpenseOperating`	$1.96M	USD	3 Qtrs
Other expense	`OtherCostAndExpenseOperating`	$1.96M	USD	3 Qtrs
Total	`CostsAndExpenses`	$1.22B	USD	1 Quarter
Total	`CostsAndExpenses`	$1.22B	USD	1 Quarter
Total	`CostsAndExpenses`	$3.10B	USD	3 Qtrs
Total	`CostsAndExpenses`	$3.10B	USD	3 Qtrs
Total	`CostsAndExpenses`	$1.24B	USD	1 Quarter
Total	`CostsAndExpenses`	$1.24B	USD	1 Quarter
Total	`CostsAndExpenses`	$3.27B	USD	3 Qtrs
Total	`CostsAndExpenses`	$3.27B	USD	3 Qtrs
OPERATING INCOME	`OperatingIncomeLoss`	$546.99M	USD	1 Quarter
OPERATING INCOME	`OperatingIncomeLoss`	$546.99M	USD	1 Quarter
OPERATING INCOME	`OperatingIncomeLoss`	$927.52M	USD	3 Qtrs
OPERATING INCOME	`OperatingIncomeLoss`	$927.52M	USD	3 Qtrs
OPERATING INCOME	`OperatingIncomeLoss`	$581.85M	USD	1 Quarter
OPERATING INCOME	`OperatingIncomeLoss`	$581.85M	USD	1 Quarter
OPERATING INCOME	`OperatingIncomeLoss`	$946.62M	USD	3 Qtrs
OPERATING INCOME	`OperatingIncomeLoss`	$946.62M	USD	3 Qtrs
Allowance for equity funds used during construction	`PublicUtilitiesAllowanceForFundsUsedDuringConstructionCapitalizedCostOfEquity`	$9.59M	USD	1 Quarter
Allowance for equity funds used during construction	`PublicUtilitiesAllowanceForFundsUsedDuringConstructionCapitalizedCostOfEquity`	$9.59M	USD	1 Quarter
Allowance for equity funds used during construction	`PublicUtilitiesAllowanceForFundsUsedDuringConstructionCapitalizedCostOfEquity`	$28.79M	USD	3 Qtrs
Allowance for equity funds used during construction	`PublicUtilitiesAllowanceForFundsUsedDuringConstructionCapitalizedCostOfEquity`	$28.79M	USD	3 Qtrs
Allowance for equity funds used during construction	`PublicUtilitiesAllowanceForFundsUsedDuringConstructionCapitalizedCostOfEquity`	$17.67M	USD	1 Quarter
Allowance for equity funds used during construction	`PublicUtilitiesAllowanceForFundsUsedDuringConstructionCapitalizedCostOfEquity`	$17.67M	USD	1 Quarter
Allowance for equity funds used during construction	`PublicUtilitiesAllowanceForFundsUsedDuringConstructionCapitalizedCostOfEquity`	$45.69M	USD	3 Qtrs
Allowance for equity funds used during construction	`PublicUtilitiesAllowanceForFundsUsedDuringConstructionCapitalizedCostOfEquity`	$45.69M	USD	3 Qtrs
Pension and other postretirement non-service credits, net (Note 7)	`PensionAndOtherPostretirementBenefitExpense`	$-12.19M	USD	1 Quarter
Pension and other postretirement non-service credits, net (Note 7)	`PensionAndOtherPostretirementBenefitExpense`	$-12.19M	USD	1 Quarter
Pension and other postretirement non-service credits, net (Note 7)	`PensionAndOtherPostretirementBenefitExpense`	$-36.63M	USD	3 Qtrs
Pension and other postretirement non-service credits, net (Note 7)	`PensionAndOtherPostretirementBenefitExpense`	$-36.63M	USD	3 Qtrs
Pension and other postretirement non-service credits, net (Note 7)	`PensionAndOtherPostretirementBenefitExpense`	$-2.78M	USD	1 Quarter
Pension and other postretirement non-service credits, net (Note 7)	`PensionAndOtherPostretirementBenefitExpense`	$-2.78M	USD	1 Quarter
Pension and other postretirement non-service credits, net (Note 7)	`PensionAndOtherPostretirementBenefitExpense`	$-9.43M	USD	3 Qtrs
Pension and other postretirement non-service credits, net (Note 7)	`PensionAndOtherPostretirementBenefitExpense`	$-9.43M	USD	3 Qtrs
Other income (Note 11)	`OtherNonoperatingIncome`	$6.77M	USD	1 Quarter
Other income (Note 11)	`OtherNonoperatingIncome`	$6.77M	USD	1 Quarter
Other income (Note 11)	`OtherNonoperatingIncome`	$43.23M	USD	3 Qtrs
Other income (Note 11)	`OtherNonoperatingIncome`	$43.23M	USD	3 Qtrs
Other income (Note 11)	`OtherNonoperatingIncome`	$12.47M	USD	1 Quarter
Other income (Note 11)	`OtherNonoperatingIncome`	$12.47M	USD	1 Quarter
Other income (Note 11)	`OtherNonoperatingIncome`	$42.04M	USD	3 Qtrs
Other income (Note 11)	`OtherNonoperatingIncome`	$42.04M	USD	3 Qtrs
Other expense (Note 11)	`OtherNonoperatingExpense`	$4.01M	USD	1 Quarter
Other expense (Note 11)	`OtherNonoperatingExpense`	$4.01M	USD	1 Quarter
Other expense (Note 11)	`OtherNonoperatingExpense`	$14.58M	USD	3 Qtrs
Other expense (Note 11)	`OtherNonoperatingExpense`	$14.58M	USD	3 Qtrs
Other expense (Note 11)	`OtherNonoperatingExpense`	$8.16M	USD	1 Quarter
Other expense (Note 11)	`OtherNonoperatingExpense`	$8.16M	USD	1 Quarter
Other expense (Note 11)	`OtherNonoperatingExpense`	$14.99M	USD	3 Qtrs
Other expense (Note 11)	`OtherNonoperatingExpense`	$14.99M	USD	3 Qtrs
Total	`NonoperatingIncomeExpense`	$24.54M	USD	1 Quarter
Total	`NonoperatingIncomeExpense`	$24.54M	USD	1 Quarter
Total	`NonoperatingIncomeExpense`	$94.08M	USD	3 Qtrs
Total	`NonoperatingIncomeExpense`	$94.08M	USD	3 Qtrs
Total	`NonoperatingIncomeExpense`	$24.76M	USD	1 Quarter
Total	`NonoperatingIncomeExpense`	$24.76M	USD	1 Quarter
Total	`NonoperatingIncomeExpense`	$82.16M	USD	3 Qtrs
Total	`NonoperatingIncomeExpense`	$82.16M	USD	3 Qtrs
Interest charges	`InterestCostsIncurred`	$109.92M	USD	1 Quarter
Interest charges	`InterestCostsIncurred`	$109.92M	USD	1 Quarter
Interest charges	`InterestCostsIncurred`	$318.59M	USD	3 Qtrs
Interest charges	`InterestCostsIncurred`	$318.59M	USD	3 Qtrs
Interest charges	`InterestCostsIncurred`	$125.18M	USD	1 Quarter
Interest charges	`InterestCostsIncurred`	$125.18M	USD	1 Quarter
Interest charges	`InterestCostsIncurred`	$343.65M	USD	3 Qtrs
Interest charges	`InterestCostsIncurred`	$343.65M	USD	3 Qtrs
Allowance for borrowed funds used during construction	`PublicUtilitiesAllowanceForFundsUsedDuringConstructionAdditions`	$11.90M	USD	1 Quarter
Allowance for borrowed funds used during construction	`PublicUtilitiesAllowanceForFundsUsedDuringConstructionAdditions`	$11.90M	USD	1 Quarter
Allowance for borrowed funds used during construction	`PublicUtilitiesAllowanceForFundsUsedDuringConstructionAdditions`	$36.08M	USD	3 Qtrs
Allowance for borrowed funds used during construction	`PublicUtilitiesAllowanceForFundsUsedDuringConstructionAdditions`	$36.08M	USD	3 Qtrs
Allowance for borrowed funds used during construction	`PublicUtilitiesAllowanceForFundsUsedDuringConstructionAdditions`	$13.98M	USD	1 Quarter
Allowance for borrowed funds used during construction	`PublicUtilitiesAllowanceForFundsUsedDuringConstructionAdditions`	$13.98M	USD	1 Quarter
Allowance for borrowed funds used during construction	`PublicUtilitiesAllowanceForFundsUsedDuringConstructionAdditions`	$35.64M	USD	3 Qtrs
Allowance for borrowed funds used during construction	`PublicUtilitiesAllowanceForFundsUsedDuringConstructionAdditions`	$35.64M	USD	3 Qtrs
Total	`InterestExpenseNonoperating`	$98.02M	USD	1 Quarter
Total	`InterestExpenseNonoperating`	$98.02M	USD	1 Quarter
Total	`InterestExpenseNonoperating`	$282.51M	USD	3 Qtrs
Total	`InterestExpenseNonoperating`	$282.51M	USD	3 Qtrs
Total	`InterestExpenseNonoperating`	$111.20M	USD	1 Quarter
Total	`InterestExpenseNonoperating`	$111.20M	USD	1 Quarter
Total	`InterestExpenseNonoperating`	$308.01M	USD	3 Qtrs
Total	`InterestExpenseNonoperating`	$308.01M	USD	3 Qtrs
Income Before Income Taxes	`IncomeLossIncludingPortionAttributableToNoncontrollingInterest`	$473.50M	USD	1 Quarter
Income Before Income Taxes	`IncomeLossIncludingPortionAttributableToNoncontrollingInterest`	$473.50M	USD	1 Quarter
Income Before Income Taxes	`IncomeLossIncludingPortionAttributableToNoncontrollingInterest`	$739.09M	USD	3 Qtrs
Income Before Income Taxes	`IncomeLossIncludingPortionAttributableToNoncontrollingInterest`	$739.09M	USD	3 Qtrs
Income Before Income Taxes	`IncomeLossIncludingPortionAttributableToNoncontrollingInterest`	$495.41M	USD	1 Quarter
Income Before Income Taxes	`IncomeLossIncludingPortionAttributableToNoncontrollingInterest`	$495.41M	USD	1 Quarter
Income Before Income Taxes	`IncomeLossIncludingPortionAttributableToNoncontrollingInterest`	$720.77M	USD	3 Qtrs
Income Before Income Taxes	`IncomeLossIncludingPortionAttributableToNoncontrollingInterest`	$720.77M	USD	3 Qtrs
Income taxes	`IncomeTaxExpenseBenefit`	$74.23M	USD	1 Quarter
Income taxes	`IncomeTaxExpenseBenefit`	$74.23M	USD	1 Quarter
Income taxes	`IncomeTaxExpenseBenefit`	$110.54M	USD	3 Qtrs
Income taxes	`IncomeTaxExpenseBenefit`	$110.54M	USD	3 Qtrs
Income taxes	`IncomeTaxExpenseBenefit`	$77.89M	USD	1 Quarter
Income taxes	`IncomeTaxExpenseBenefit`	$77.89M	USD	1 Quarter
Income taxes	`IncomeTaxExpenseBenefit`	$106.73M	USD	3 Qtrs
Income taxes	`IncomeTaxExpenseBenefit`	$106.73M	USD	3 Qtrs
Net Income	`ProfitLoss`	$399.27M	USD	1 Quarter
Net Income	`ProfitLoss`	$399.27M	USD	1 Quarter
Net Income	`ProfitLoss`	$628.55M	USD	3 Qtrs
Net Income	`ProfitLoss`	$628.55M	USD	3 Qtrs
Net Income	`ProfitLoss`	$417.51M	USD	1 Quarter
Net Income	`ProfitLoss`	$417.51M	USD	1 Quarter
Net Income	`ProfitLoss`	$614.05M	USD	3 Qtrs
Net Income	`ProfitLoss`	$614.05M	USD	3 Qtrs
Less: Net income attributable to noncontrolling interests (Note 8)	`NetIncomeLossAttributableToNoncontrollingInterest`	$4.31M	USD	1 Quarter
Less: Net income attributable to noncontrolling interests (Note 8)	`NetIncomeLossAttributableToNoncontrollingInterest`	$4.31M	USD	1 Quarter
Less: Net income attributable to noncontrolling interests (Note 8)	`NetIncomeLossAttributableToNoncontrollingInterest`	$12.92M	USD	3 Qtrs
Less: Net income attributable to noncontrolling interests (Note 8)	`NetIncomeLossAttributableToNoncontrollingInterest`	$12.92M	USD	3 Qtrs
Less: Net income attributable to noncontrolling interests (Note 8)	`NetIncomeLossAttributableToNoncontrollingInterest`	$4.31M	USD	1 Quarter
Less: Net income attributable to noncontrolling interests (Note 8)	`NetIncomeLossAttributableToNoncontrollingInterest`	$4.31M	USD	1 Quarter
Less: Net income attributable to noncontrolling interests (Note 8)	`NetIncomeLossAttributableToNoncontrollingInterest`	$12.92M	USD	3 Qtrs
Less: Net income attributable to noncontrolling interests (Note 8)	`NetIncomeLossAttributableToNoncontrollingInterest`	$12.92M	USD	3 Qtrs
Net Income Attributable to Common Shareholders	`NetIncomeLossAvailableToCommonStockholdersBasic`	$394.97M	USD	1 Quarter
Net Income Attributable to Common Shareholders	`NetIncomeLossAvailableToCommonStockholdersBasic`	$394.97M	USD	1 Quarter
Net Income Attributable to Common Shareholders	`NetIncomeLossAvailableToCommonStockholdersBasic`	$615.63M	USD	3 Qtrs
Net Income Attributable to Common Shareholders	`NetIncomeLossAvailableToCommonStockholdersBasic`	$615.63M	USD	3 Qtrs
Net Income Attributable to Common Shareholders	`NetIncomeLossAvailableToCommonStockholdersBasic`	$413.21M	USD	1 Quarter
Net Income Attributable to Common Shareholders	`NetIncomeLossAvailableToCommonStockholdersBasic`	$413.21M	USD	1 Quarter
Net Income Attributable to Common Shareholders	`NetIncomeLossAvailableToCommonStockholdersBasic`	$601.13M	USD	3 Qtrs
Net Income Attributable to Common Shareholders	`NetIncomeLossAvailableToCommonStockholdersBasic`	$601.13M	USD	3 Qtrs
Weighted-average common shares outstanding - basic (in shares)	`WeightedAverageNumberOfSharesOutstandingBasic`	113.73M	shares	1 Quarter
Weighted-average common shares outstanding - basic (in shares)	`WeightedAverageNumberOfSharesOutstandingBasic`	113.73M	shares	1 Quarter
Weighted-average common shares outstanding - basic (in shares)	`WeightedAverageNumberOfSharesOutstandingBasic`	113.68M	shares	3 Qtrs
Weighted-average common shares outstanding - basic (in shares)	`WeightedAverageNumberOfSharesOutstandingBasic`	113.68M	shares	3 Qtrs
Weighted-average common shares outstanding - basic (in shares)	`WeightedAverageNumberOfSharesOutstandingBasic`	119.62M	shares	1 Quarter
Weighted-average common shares outstanding - basic (in shares)	`WeightedAverageNumberOfSharesOutstandingBasic`	119.62M	shares	1 Quarter
Weighted-average common shares outstanding - basic (in shares)	`WeightedAverageNumberOfSharesOutstandingBasic`	119.58M	shares	3 Qtrs
Weighted-average common shares outstanding - basic (in shares)	`WeightedAverageNumberOfSharesOutstandingBasic`	119.58M	shares	3 Qtrs
Weighted-average common shares outstanding - diluted (in shares)	`WeightedAverageNumberOfDilutedSharesOutstanding`	117.12M	shares	1 Quarter
Weighted-average common shares outstanding - diluted (in shares)	`WeightedAverageNumberOfDilutedSharesOutstanding`	117.12M	shares	1 Quarter
Weighted-average common shares outstanding - diluted (in shares)	`WeightedAverageNumberOfDilutedSharesOutstanding`	115.72M	shares	3 Qtrs
Weighted-average common shares outstanding - diluted (in shares)	`WeightedAverageNumberOfDilutedSharesOutstanding`	115.72M	shares	3 Qtrs
Weighted-average common shares outstanding - diluted (in shares)	`WeightedAverageNumberOfDilutedSharesOutstanding`	121.96M	shares	1 Quarter
Weighted-average common shares outstanding - diluted (in shares)	`WeightedAverageNumberOfDilutedSharesOutstanding`	121.96M	shares	1 Quarter
Weighted-average common shares outstanding - diluted (in shares)	`WeightedAverageNumberOfDilutedSharesOutstanding`	121.86M	shares	3 Qtrs
Weighted-average common shares outstanding - diluted (in shares)	`WeightedAverageNumberOfDilutedSharesOutstanding`	121.86M	shares	3 Qtrs
Net income attributable to common shareholders basic (in dollars per share)	`EarningsPerShareBasic`	$3.47	USD	1 Quarter
Net income attributable to common shareholders basic (in dollars per share)	`EarningsPerShareBasic`	$3.47	USD	1 Quarter
Net income attributable to common shareholders basic (in dollars per share)	`EarningsPerShareBasic`	$5.42	USD	3 Qtrs
Net income attributable to common shareholders basic (in dollars per share)	`EarningsPerShareBasic`	$5.42	USD	3 Qtrs
Net income attributable to common shareholders basic (in dollars per share)	`EarningsPerShareBasic`	$3.45	USD	1 Quarter
Net income attributable to common shareholders basic (in dollars per share)	`EarningsPerShareBasic`	$3.45	USD	1 Quarter
Net income attributable to common shareholders basic (in dollars per share)	`EarningsPerShareBasic`	$5.03	USD	3 Qtrs
Net income attributable to common shareholders basic (in dollars per share)	`EarningsPerShareBasic`	$5.03	USD	3 Qtrs
Net income attributable to common shareholders diluted (in dollars per share)	`EarningsPerShareDiluted`	$3.37	USD	1 Quarter
Net income attributable to common shareholders diluted (in dollars per share)	`EarningsPerShareDiluted`	$3.37	USD	1 Quarter
Net income attributable to common shareholders diluted (in dollars per share)	`EarningsPerShareDiluted`	$5.32	USD	3 Qtrs
Net income attributable to common shareholders diluted (in dollars per share)	`EarningsPerShareDiluted`	$5.32	USD	3 Qtrs
Net income attributable to common shareholders diluted (in dollars per share)	`EarningsPerShareDiluted`	$3.39	USD	1 Quarter
Net income attributable to common shareholders diluted (in dollars per share)	`EarningsPerShareDiluted`	$3.39	USD	1 Quarter
Net income attributable to common shareholders diluted (in dollars per share)	`EarningsPerShareDiluted`	$4.93	USD	3 Qtrs
Net income attributable to common shareholders diluted (in dollars per share)	`EarningsPerShareDiluted`	$4.93	USD	3 Qtrs

Cash Flow Statement 196 line items

Line Item	Tag	Value	Unit	Period
Net income	`ProfitLoss`	$399.27M	USD	1 Quarter
Net income	`ProfitLoss`	$399.27M	USD	1 Quarter
Net income	`ProfitLoss`	$628.55M	USD	3 Qtrs
Net income	`ProfitLoss`	$628.55M	USD	3 Qtrs
Net income	`ProfitLoss`	$417.51M	USD	1 Quarter
Net income	`ProfitLoss`	$417.51M	USD	1 Quarter
Net income	`ProfitLoss`	$614.05M	USD	3 Qtrs
Net income	`ProfitLoss`	$614.05M	USD	3 Qtrs
Gain on sale relating to BCE	`DisposalGroupNotDiscontinuedOperationGainLossOnDisposal`	$22.99M	USD	3 Qtrs
Gain on sale relating to BCE	`DisposalGroupNotDiscontinuedOperationGainLossOnDisposal`	$22.99M	USD	3 Qtrs
Gain on sale relating to BCE	`DisposalGroupNotDiscontinuedOperationGainLossOnDisposal`	-	USD	3 Qtrs
Gain on sale relating to BCE	`DisposalGroupNotDiscontinuedOperationGainLossOnDisposal`	-	USD	3 Qtrs
Depreciation and amortization including nuclear fuel	`DepreciationDepletionAndAmortization`	$711.59M	USD	3 Qtrs
Depreciation and amortization including nuclear fuel	`DepreciationDepletionAndAmortization`	$711.59M	USD	3 Qtrs
Depreciation and amortization including nuclear fuel	`DepreciationDepletionAndAmortization`	$731.64M	USD	3 Qtrs
Depreciation and amortization including nuclear fuel	`DepreciationDepletionAndAmortization`	$731.64M	USD	3 Qtrs
Allowance for equity funds used during construction	`PublicUtilitiesAllowanceForFundsUsedDuringConstructionCapitalizedCostOfEquity`	$9.59M	USD	1 Quarter
Allowance for equity funds used during construction	`PublicUtilitiesAllowanceForFundsUsedDuringConstructionCapitalizedCostOfEquity`	$9.59M	USD	1 Quarter
Allowance for equity funds used during construction	`PublicUtilitiesAllowanceForFundsUsedDuringConstructionCapitalizedCostOfEquity`	$28.79M	USD	3 Qtrs
Allowance for equity funds used during construction	`PublicUtilitiesAllowanceForFundsUsedDuringConstructionCapitalizedCostOfEquity`	$28.79M	USD	3 Qtrs
Allowance for equity funds used during construction	`PublicUtilitiesAllowanceForFundsUsedDuringConstructionCapitalizedCostOfEquity`	$17.67M	USD	1 Quarter
Allowance for equity funds used during construction	`PublicUtilitiesAllowanceForFundsUsedDuringConstructionCapitalizedCostOfEquity`	$17.67M	USD	1 Quarter
Allowance for equity funds used during construction	`PublicUtilitiesAllowanceForFundsUsedDuringConstructionCapitalizedCostOfEquity`	$45.69M	USD	3 Qtrs
Allowance for equity funds used during construction	`PublicUtilitiesAllowanceForFundsUsedDuringConstructionCapitalizedCostOfEquity`	$45.69M	USD	3 Qtrs
Deferred income taxes	`DeferredIncomeTaxExpenseBenefit`	$-13.35M	USD	3 Qtrs
Deferred income taxes	`DeferredIncomeTaxExpenseBenefit`	$-13.35M	USD	3 Qtrs
Deferred income taxes	`DeferredIncomeTaxExpenseBenefit`	$-9.63M	USD	3 Qtrs
Deferred income taxes	`DeferredIncomeTaxExpenseBenefit`	$-9.63M	USD	3 Qtrs
Deferred investment tax credit	`DeferredInvestmentTaxCreditExpense`	$-10.29M	USD	3 Qtrs
Deferred investment tax credit	`DeferredInvestmentTaxCreditExpense`	$-10.29M	USD	3 Qtrs
Deferred investment tax credit	`DeferredInvestmentTaxCreditExpense`	$-10.02M	USD	3 Qtrs
Deferred investment tax credit	`DeferredInvestmentTaxCreditExpense`	$-10.02M	USD	3 Qtrs
Stock compensation	`ShareBasedCompensation`	$16.94M	USD	3 Qtrs
Stock compensation	`ShareBasedCompensation`	$16.94M	USD	3 Qtrs
Stock compensation	`ShareBasedCompensation`	$21.25M	USD	3 Qtrs
Stock compensation	`ShareBasedCompensation`	$21.25M	USD	3 Qtrs
Customer and other receivables	`IncreaseDecreaseInAccountsAndNotesReceivable`	$330.87M	USD	3 Qtrs
Customer and other receivables	`IncreaseDecreaseInAccountsAndNotesReceivable`	$330.87M	USD	3 Qtrs
Customer and other receivables	`IncreaseDecreaseInAccountsAndNotesReceivable`	$253.22M	USD	3 Qtrs
Customer and other receivables	`IncreaseDecreaseInAccountsAndNotesReceivable`	$253.22M	USD	3 Qtrs
Accrued unbilled revenues	`IncreaseDecreaseInContractWithCustomerAsset`	$94.29M	USD	3 Qtrs
Accrued unbilled revenues	`IncreaseDecreaseInContractWithCustomerAsset`	$94.29M	USD	3 Qtrs
Accrued unbilled revenues	`IncreaseDecreaseInContractWithCustomerAsset`	$80.97M	USD	3 Qtrs
Accrued unbilled revenues	`IncreaseDecreaseInContractWithCustomerAsset`	$80.97M	USD	3 Qtrs
Materials, supplies and fossil fuel	`IncreaseDecreaseInInventories`	$34.49M	USD	3 Qtrs
Materials, supplies and fossil fuel	`IncreaseDecreaseInInventories`	$34.49M	USD	3 Qtrs
Materials, supplies and fossil fuel	`IncreaseDecreaseInInventories`	$37.25M	USD	3 Qtrs
Materials, supplies and fossil fuel	`IncreaseDecreaseInInventories`	$37.25M	USD	3 Qtrs
Income tax receivable	`IncreaseDecreaseInIncomeTaxesReceivable`	$-332.00K	USD	3 Qtrs
Income tax receivable	`IncreaseDecreaseInIncomeTaxesReceivable`	$-332.00K	USD	3 Qtrs
Income tax receivable	`IncreaseDecreaseInIncomeTaxesReceivable`	-	USD	3 Qtrs
Income tax receivable	`IncreaseDecreaseInIncomeTaxesReceivable`	-	USD	3 Qtrs
Deferred fuel and purchased power	`IncreaseDecreaseInRegulatoryClauseRevenue`	$-244.11M	USD	3 Qtrs
Deferred fuel and purchased power	`IncreaseDecreaseInRegulatoryClauseRevenue`	$-244.11M	USD	3 Qtrs
Deferred fuel and purchased power	`IncreaseDecreaseInRegulatoryClauseRevenue`	$-276.33M	USD	3 Qtrs
Deferred fuel and purchased power	`IncreaseDecreaseInRegulatoryClauseRevenue`	$-276.33M	USD	3 Qtrs
Deferred fuel and purchased power amortization	`IncreaseDecreaseDeferredFuelAndPurchasedPowerAmortization`	$340.03M	USD	3 Qtrs
Deferred fuel and purchased power amortization	`IncreaseDecreaseDeferredFuelAndPurchasedPowerAmortization`	$340.03M	USD	3 Qtrs
Deferred fuel and purchased power amortization	`IncreaseDecreaseDeferredFuelAndPurchasedPowerAmortization`	$358.87M	USD	3 Qtrs
Deferred fuel and purchased power amortization	`IncreaseDecreaseDeferredFuelAndPurchasedPowerAmortization`	$358.87M	USD	3 Qtrs
Other current assets	`IncreaseDecreaseInPrepaidExpense`	$26.06M	USD	3 Qtrs
Other current assets	`IncreaseDecreaseInPrepaidExpense`	$26.06M	USD	3 Qtrs
Other current assets	`IncreaseDecreaseInPrepaidExpense`	$5.80M	USD	3 Qtrs
Other current assets	`IncreaseDecreaseInPrepaidExpense`	$5.80M	USD	3 Qtrs
Accounts payable	`IncreaseDecreaseInAccountsPayable`	$24.96M	USD	3 Qtrs
Accounts payable	`IncreaseDecreaseInAccountsPayable`	$24.96M	USD	3 Qtrs
Accounts payable	`IncreaseDecreaseInAccountsPayable`	$80.81M	USD	3 Qtrs
Accounts payable	`IncreaseDecreaseInAccountsPayable`	$80.81M	USD	3 Qtrs
Accrued taxes	`IncreaseDecreaseInAccruedTaxesPayable`	$174.81M	USD	3 Qtrs
Accrued taxes	`IncreaseDecreaseInAccruedTaxesPayable`	$174.81M	USD	3 Qtrs
Accrued taxes	`IncreaseDecreaseInAccruedTaxesPayable`	$172.51M	USD	3 Qtrs
Accrued taxes	`IncreaseDecreaseInAccruedTaxesPayable`	$172.51M	USD	3 Qtrs
Other current liabilities	`IncreaseDecreaseInOtherAccruedLiabilities`	$74.18M	USD	3 Qtrs
Other current liabilities	`IncreaseDecreaseInOtherAccruedLiabilities`	$74.18M	USD	3 Qtrs
Other current liabilities	`IncreaseDecreaseInOtherAccruedLiabilities`	$23.46M	USD	3 Qtrs
Other current liabilities	`IncreaseDecreaseInOtherAccruedLiabilities`	$23.46M	USD	3 Qtrs
Change in long-term regulatory assets	`IncreaseDecreaseInOtherRegulatoryAssets`	$-32.13M	USD	3 Qtrs
Change in long-term regulatory assets	`IncreaseDecreaseInOtherRegulatoryAssets`	$-32.13M	USD	3 Qtrs
Change in long-term regulatory assets	`IncreaseDecreaseInOtherRegulatoryAssets`	$-72.05M	USD	3 Qtrs
Change in long-term regulatory assets	`IncreaseDecreaseInOtherRegulatoryAssets`	$-72.05M	USD	3 Qtrs
Change in long-term regulatory liabilities	`IncreaseDecreaseInRegulatoryLiabilities`	$43.45M	USD	3 Qtrs
Change in long-term regulatory liabilities	`IncreaseDecreaseInRegulatoryLiabilities`	$43.45M	USD	3 Qtrs
Change in long-term regulatory liabilities	`IncreaseDecreaseInRegulatoryLiabilities`	$46.17M	USD	3 Qtrs
Change in long-term regulatory liabilities	`IncreaseDecreaseInRegulatoryLiabilities`	$46.17M	USD	3 Qtrs
Change in other long-term assets	`IncreaseDecreaseInOtherOperatingAssets`	$126.38M	USD	3 Qtrs
Change in other long-term assets	`IncreaseDecreaseInOtherOperatingAssets`	$126.38M	USD	3 Qtrs
Change in other long-term assets	`IncreaseDecreaseInOtherOperatingAssets`	$222.25M	USD	3 Qtrs
Change in other long-term assets	`IncreaseDecreaseInOtherOperatingAssets`	$222.25M	USD	3 Qtrs
Change in operating lease assets	`IncreaseDecreaseInOperatingLeaseRightOfUseAsset`	$-94.77M	USD	3 Qtrs
Change in operating lease assets	`IncreaseDecreaseInOperatingLeaseRightOfUseAsset`	$-94.77M	USD	3 Qtrs
Change in operating lease assets	`IncreaseDecreaseInOperatingLeaseRightOfUseAsset`	$-131.27M	USD	3 Qtrs
Change in operating lease assets	`IncreaseDecreaseInOperatingLeaseRightOfUseAsset`	$-131.27M	USD	3 Qtrs
Change in other long-term liabilities	`IncreaseDecreaseInOtherOperatingLiabilities`	$49.69M	USD	3 Qtrs
Change in other long-term liabilities	`IncreaseDecreaseInOtherOperatingLiabilities`	$49.69M	USD	3 Qtrs
Change in other long-term liabilities	`IncreaseDecreaseInOtherOperatingLiabilities`	$153.25M	USD	3 Qtrs
Change in other long-term liabilities	`IncreaseDecreaseInOtherOperatingLiabilities`	$153.25M	USD	3 Qtrs
Change in operating lease liabilities	`IncreaseDecreaseInOperatingLeaseLiability`	$-89.48M	USD	3 Qtrs
Change in operating lease liabilities	`IncreaseDecreaseInOperatingLeaseLiability`	$-89.48M	USD	3 Qtrs
Change in operating lease liabilities	`IncreaseDecreaseInOperatingLeaseLiability`	$-135.87M	USD	3 Qtrs
Change in operating lease liabilities	`IncreaseDecreaseInOperatingLeaseLiability`	$-135.87M	USD	3 Qtrs
Net cash provided by operating activities	`NetCashProvidedByUsedInOperatingActivities`	$1.17B	USD	3 Qtrs
Net cash provided by operating activities	`NetCashProvidedByUsedInOperatingActivities`	$1.17B	USD	3 Qtrs
Net cash provided by operating activities	`NetCashProvidedByUsedInOperatingActivities`	$1.33B	USD	3 Qtrs
Net cash provided by operating activities	`NetCashProvidedByUsedInOperatingActivities`	$1.33B	USD	3 Qtrs
Capital expenditures	`PaymentsToAcquireProductiveAssets`	$1.72B	USD	3 Qtrs
Capital expenditures	`PaymentsToAcquireProductiveAssets`	$1.72B	USD	3 Qtrs
Capital expenditures	`PaymentsToAcquireProductiveAssets`	$1.96B	USD	3 Qtrs
Capital expenditures	`PaymentsToAcquireProductiveAssets`	$1.96B	USD	3 Qtrs
Contributions in aid of construction	`ProceedsFromContributionInAidOfConstruction`	$235.86M	USD	3 Qtrs
Contributions in aid of construction	`ProceedsFromContributionInAidOfConstruction`	$235.86M	USD	3 Qtrs
Contributions in aid of construction	`ProceedsFromContributionInAidOfConstruction`	$166.20M	USD	3 Qtrs
Contributions in aid of construction	`ProceedsFromContributionInAidOfConstruction`	$166.20M	USD	3 Qtrs
Proceeds from sale relating to BCE	`ProceedsFromDivestitureOfBusinessesNetOfCashDivested`	$64.32M	USD	3 Qtrs
Proceeds from sale relating to BCE	`ProceedsFromDivestitureOfBusinessesNetOfCashDivested`	$64.32M	USD	3 Qtrs
Proceeds from sale relating to BCE	`ProceedsFromDivestitureOfBusinessesNetOfCashDivested`	-	USD	3 Qtrs
Proceeds from sale relating to BCE	`ProceedsFromDivestitureOfBusinessesNetOfCashDivested`	-	USD	3 Qtrs
Allowance for borrowed funds used during construction	`AllowanceForFundsUsedDuringConstructionInvestingActivities`	$-36.08M	USD	3 Qtrs
Allowance for borrowed funds used during construction	`AllowanceForFundsUsedDuringConstructionInvestingActivities`	$-36.08M	USD	3 Qtrs
Allowance for borrowed funds used during construction	`AllowanceForFundsUsedDuringConstructionInvestingActivities`	$-35.64M	USD	3 Qtrs
Allowance for borrowed funds used during construction	`AllowanceForFundsUsedDuringConstructionInvestingActivities`	$-35.64M	USD	3 Qtrs
Proceeds from nuclear decommissioning trusts sales and other special use funds	`ProceedsFromDecommissioningTrustFundAssetsAndOtherSpecialUseFunds`	$1.14B	USD	3 Qtrs
Proceeds from nuclear decommissioning trusts sales and other special use funds	`ProceedsFromDecommissioningTrustFundAssetsAndOtherSpecialUseFunds`	$1.14B	USD	3 Qtrs
Proceeds from nuclear decommissioning trusts sales and other special use funds	`ProceedsFromDecommissioningTrustFundAssetsAndOtherSpecialUseFunds`	$1.38B	USD	3 Qtrs
Proceeds from nuclear decommissioning trusts sales and other special use funds	`ProceedsFromDecommissioningTrustFundAssetsAndOtherSpecialUseFunds`	$1.38B	USD	3 Qtrs
Investment in nuclear decommissioning trusts and other special use funds	`PaymentsToAcquireInvestmentsToBeHeldInDecommissioningTrustFundAndOtherSpecialUseFunds`	$1.15B	USD	3 Qtrs
Investment in nuclear decommissioning trusts and other special use funds	`PaymentsToAcquireInvestmentsToBeHeldInDecommissioningTrustFundAndOtherSpecialUseFunds`	$1.15B	USD	3 Qtrs
Investment in nuclear decommissioning trusts and other special use funds	`PaymentsToAcquireInvestmentsToBeHeldInDecommissioningTrustFundAndOtherSpecialUseFunds`	$1.38B	USD	3 Qtrs
Investment in nuclear decommissioning trusts and other special use funds	`PaymentsToAcquireInvestmentsToBeHeldInDecommissioningTrustFundAndOtherSpecialUseFunds`	$1.38B	USD	3 Qtrs
Other	`PaymentsForProceedsFromOtherInvestingActivities`	$5.69M	USD	3 Qtrs
Other	`PaymentsForProceedsFromOtherInvestingActivities`	$5.69M	USD	3 Qtrs
Other	`PaymentsForProceedsFromOtherInvestingActivities`	$5.35M	USD	3 Qtrs
Other	`PaymentsForProceedsFromOtherInvestingActivities`	$5.35M	USD	3 Qtrs
Net cash used for investing activities	`NetCashProvidedByUsedInInvestingActivities`	$-1.47B	USD	3 Qtrs
Net cash used for investing activities	`NetCashProvidedByUsedInInvestingActivities`	$-1.47B	USD	3 Qtrs
Net cash used for investing activities	`NetCashProvidedByUsedInInvestingActivities`	$-1.83B	USD	3 Qtrs
Net cash used for investing activities	`NetCashProvidedByUsedInInvestingActivities`	$-1.83B	USD	3 Qtrs
Issuance of long-term debt	`ProceedsFromIssuanceOfOtherLongTermDebt`	$1.31B	USD	3 Qtrs
Issuance of long-term debt	`ProceedsFromIssuanceOfOtherLongTermDebt`	$1.31B	USD	3 Qtrs
Issuance of long-term debt	`ProceedsFromIssuanceOfOtherLongTermDebt`	$1.74B	USD	3 Qtrs
Issuance of long-term debt	`ProceedsFromIssuanceOfOtherLongTermDebt`	$1.74B	USD	3 Qtrs
Repayment of long-term debt	`RepaymentsOfOtherLongTermDebt`	$675.00M	USD	3 Qtrs
Repayment of long-term debt	`RepaymentsOfOtherLongTermDebt`	$675.00M	USD	3 Qtrs
Repayment of long-term debt	`RepaymentsOfOtherLongTermDebt`	$800.00M	USD	3 Qtrs
Repayment of long-term debt	`RepaymentsOfOtherLongTermDebt`	$800.00M	USD	3 Qtrs
Short-term borrowing and (repayments) - net	`ProceedsFromRepaymentsOfShortTermDebtNet`	$14.00M	USD	3 Qtrs
Short-term borrowing and (repayments) - net	`ProceedsFromRepaymentsOfShortTermDebtNet`	$14.00M	USD	3 Qtrs
Short-term borrowing and (repayments) - net	`ProceedsFromRepaymentsOfShortTermDebtNet`	$107.25M	USD	3 Qtrs
Short-term borrowing and (repayments) - net	`ProceedsFromRepaymentsOfShortTermDebtNet`	$107.25M	USD	3 Qtrs
Short-term debt borrowings under term loan facility	`ProceedsFromIssuanceOfSecuredDebt`	$350.00M	USD	3 Qtrs
Short-term debt borrowings under term loan facility	`ProceedsFromIssuanceOfSecuredDebt`	$350.00M	USD	3 Qtrs
Short-term debt borrowings under term loan facility	`ProceedsFromIssuanceOfSecuredDebt`	$400.00M	USD	3 Qtrs
Short-term debt borrowings under term loan facility	`ProceedsFromIssuanceOfSecuredDebt`	$400.00M	USD	3 Qtrs
Short-term debt repayments under term loan facility	`RepaymentsOfSecuredDebt`	$350.00M	USD	3 Qtrs
Short-term debt repayments under term loan facility	`RepaymentsOfSecuredDebt`	$350.00M	USD	3 Qtrs
Short-term debt repayments under term loan facility	`RepaymentsOfSecuredDebt`	$400.00M	USD	3 Qtrs
Short-term debt repayments under term loan facility	`RepaymentsOfSecuredDebt`	$400.00M	USD	3 Qtrs
Dividends paid on common stock	`PaymentsOfDividendsCommonStock`	$294.59M	USD	3 Qtrs
Dividends paid on common stock	`PaymentsOfDividendsCommonStock`	$294.59M	USD	3 Qtrs
Dividends paid on common stock	`PaymentsOfDividendsCommonStock`	$315.46M	USD	3 Qtrs
Dividends paid on common stock	`PaymentsOfDividendsCommonStock`	$315.46M	USD	3 Qtrs
Common stock equity issuance and (purchases) - net	`ProceedsFromIssuanceOrSaleOfEquity`	$9.42M	USD	3 Qtrs
Common stock equity issuance and (purchases) - net	`ProceedsFromIssuanceOrSaleOfEquity`	$9.42M	USD	3 Qtrs
Common stock equity issuance and (purchases) - net	`PaymentsForRepurchaseOfCommonStock`	$3.80M	USD	3 Qtrs
Common stock equity issuance and (purchases) - net	`PaymentsForRepurchaseOfCommonStock`	$3.80M	USD	3 Qtrs
Palo Verde sale leaseback noncontrolling interest acquisition	`PaymentForSaleLeasebackNoncontrollingInterestAcquisition`	-	USD	3 Qtrs
Palo Verde sale leaseback noncontrolling interest acquisition	`PaymentForSaleLeasebackNoncontrollingInterestAcquisition`	-	USD	3 Qtrs
Palo Verde sale leaseback noncontrolling interest acquisition	`PaymentForSaleLeasebackNoncontrollingInterestAcquisition`	$198.74M	USD	3 Qtrs
Palo Verde sale leaseback noncontrolling interest acquisition	`PaymentForSaleLeasebackNoncontrollingInterestAcquisition`	$198.74M	USD	3 Qtrs
Capital activities by noncontrolling interests	`PaymentsToMinorityShareholders`	$10.63M	USD	3 Qtrs
Capital activities by noncontrolling interests	`PaymentsToMinorityShareholders`	$10.63M	USD	3 Qtrs
Capital activities by noncontrolling interests	`PaymentsToMinorityShareholders`	$13.37M	USD	3 Qtrs
Capital activities by noncontrolling interests	`PaymentsToMinorityShareholders`	$13.37M	USD	3 Qtrs
Net cash provided by financing activities	`NetCashProvidedByUsedInFinancingActivities`	$343.21M	USD	3 Qtrs
Net cash provided by financing activities	`NetCashProvidedByUsedInFinancingActivities`	$343.21M	USD	3 Qtrs
Net cash provided by financing activities	`NetCashProvidedByUsedInFinancingActivities`	$531.85M	USD	3 Qtrs
Net cash provided by financing activities	`NetCashProvidedByUsedInFinancingActivities`	$531.85M	USD	3 Qtrs
NET INCREASE IN CASH AND CASH EQUIVALENTS	`CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect`	$44.22M	USD	3 Qtrs
NET INCREASE IN CASH AND CASH EQUIVALENTS	`CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect`	$44.22M	USD	3 Qtrs
NET INCREASE IN CASH AND CASH EQUIVALENTS	`CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect`	$27.05M	USD	3 Qtrs
NET INCREASE IN CASH AND CASH EQUIVALENTS	`CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect`	$27.05M	USD	3 Qtrs
CASH AND CASH EQUIVALENTS AT BEGINNING OF PERIOD	`CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents`	$4.96M	USD	Point-in-time
CASH AND CASH EQUIVALENTS AT BEGINNING OF PERIOD	`CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents`	$4.96M	USD	Point-in-time
CASH AND CASH EQUIVALENTS AT BEGINNING OF PERIOD	`CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents`	$49.17M	USD	Point-in-time
CASH AND CASH EQUIVALENTS AT BEGINNING OF PERIOD	`CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents`	$49.17M	USD	Point-in-time
CASH AND CASH EQUIVALENTS AT BEGINNING OF PERIOD	`CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents`	$3.84M	USD	Point-in-time
CASH AND CASH EQUIVALENTS AT BEGINNING OF PERIOD	`CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents`	$3.84M	USD	Point-in-time
CASH AND CASH EQUIVALENTS AT BEGINNING OF PERIOD	`CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents`	$30.89M	USD	Point-in-time
CASH AND CASH EQUIVALENTS AT BEGINNING OF PERIOD	`CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents`	$30.89M	USD	Point-in-time
CASH AND CASH EQUIVALENTS AT END OF PERIOD	`CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents`	$4.96M	USD	Point-in-time
CASH AND CASH EQUIVALENTS AT END OF PERIOD	`CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents`	$4.96M	USD	Point-in-time
CASH AND CASH EQUIVALENTS AT END OF PERIOD	`CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents`	$49.17M	USD	Point-in-time
CASH AND CASH EQUIVALENTS AT END OF PERIOD	`CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents`	$49.17M	USD	Point-in-time
CASH AND CASH EQUIVALENTS AT END OF PERIOD	`CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents`	$3.84M	USD	Point-in-time
CASH AND CASH EQUIVALENTS AT END OF PERIOD	`CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents`	$3.84M	USD	Point-in-time
CASH AND CASH EQUIVALENTS AT END OF PERIOD	`CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents`	$30.89M	USD	Point-in-time
CASH AND CASH EQUIVALENTS AT END OF PERIOD	`CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents`	$30.89M	USD	Point-in-time

Stockholders Equity 96 line items

Line Item	Tag	Value	Unit	Period
Dividends on common stock (in dollars per share)	`CommonStockDividendsPerShareDeclared`	$1.76	USD	3 Qtrs
Dividends on common stock (in dollars per share)	`CommonStockDividendsPerShareDeclared`	$1.76	USD	3 Qtrs
Dividends on common stock (in dollars per share)	`CommonStockDividendsPerShareDeclared`	$1.79	USD	3 Qtrs
Dividends on common stock (in dollars per share)	`CommonStockDividendsPerShareDeclared`	$1.79	USD	3 Qtrs
Beginning balance (in shares)	`CommonStockSharesIssued`	119.14M	shares	Point-in-time
Beginning balance (in shares)	`CommonStockSharesIssued`	119.14M	shares	Point-in-time
Beginning balance (in shares)	`CommonStockSharesIssued`	119.74M	shares	Point-in-time
Beginning balance (in shares)	`CommonStockSharesIssued`	119.74M	shares	Point-in-time
Beginning balance	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$6.28B	USD	Point-in-time
Beginning balance	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$6.28B	USD	Point-in-time
Beginning balance	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$6.32B	USD	Point-in-time
Beginning balance	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$6.32B	USD	Point-in-time
Beginning balance	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$6.73B	USD	Point-in-time
Beginning balance	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$6.73B	USD	Point-in-time
Beginning balance	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$6.86B	USD	Point-in-time
Beginning balance	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$6.86B	USD	Point-in-time
Beginning balance	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$6.83B	USD	Point-in-time
Beginning balance	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$6.83B	USD	Point-in-time
Beginning balance	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$7.21B	USD	Point-in-time
Beginning balance	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$7.21B	USD	Point-in-time
Beginning balance (in shares)	`TreasuryStockCommonShares`	46,968.00	shares	Point-in-time
Beginning balance (in shares)	`TreasuryStockCommonShares`	46,968.00	shares	Point-in-time
Beginning balance (in shares)	`TreasuryStockCommonShares`	46,968.00	shares	Point-in-time
Beginning balance (in shares)	`TreasuryStockCommonShares`	46,968.00	shares	Point-in-time
Net income	`ProfitLoss`	$399.27M	USD	1 Quarter
Net income	`ProfitLoss`	$399.27M	USD	1 Quarter
Net income	`ProfitLoss`	$628.55M	USD	3 Qtrs
Net income	`ProfitLoss`	$628.55M	USD	3 Qtrs
Net income	`ProfitLoss`	$417.51M	USD	1 Quarter
Net income	`ProfitLoss`	$417.51M	USD	1 Quarter
Net income	`ProfitLoss`	$614.05M	USD	3 Qtrs
Net income	`ProfitLoss`	$614.05M	USD	3 Qtrs
Other comprehensive income	`OtherComprehensiveIncomeLossNetOfTax`	$480.00K	USD	1 Quarter
Other comprehensive income	`OtherComprehensiveIncomeLossNetOfTax`	$480.00K	USD	1 Quarter
Other comprehensive income	`OtherComprehensiveIncomeLossNetOfTax`	$330.00K	USD	3 Qtrs
Other comprehensive income	`OtherComprehensiveIncomeLossNetOfTax`	$330.00K	USD	3 Qtrs
Other comprehensive income	`OtherComprehensiveIncomeLossNetOfTax`	$350.00K	USD	1 Quarter
Other comprehensive income	`OtherComprehensiveIncomeLossNetOfTax`	$350.00K	USD	1 Quarter
Other comprehensive income	`OtherComprehensiveIncomeLossNetOfTax`	$851.00K	USD	3 Qtrs
Other comprehensive income	`OtherComprehensiveIncomeLossNetOfTax`	$851.00K	USD	3 Qtrs
Dividends on common stock	`DividendsCommonStockCash`	$199.87M	USD	3 Qtrs
Dividends on common stock	`DividendsCommonStockCash`	$199.87M	USD	3 Qtrs
Dividends on common stock	`DividendsCommonStockCash`	$213.73M	USD	3 Qtrs
Dividends on common stock	`DividendsCommonStockCash`	$213.73M	USD	3 Qtrs
Issuance of common stock	`StockIssuedDuringPeriodValueNewIssuesNettedAgainstCompensationExpense`	$27.66M	USD	1 Quarter
Issuance of common stock	`StockIssuedDuringPeriodValueNewIssuesNettedAgainstCompensationExpense`	$27.66M	USD	1 Quarter
Issuance of common stock	`StockIssuedDuringPeriodValueNewIssuesNettedAgainstCompensationExpense`	$25.45M	USD	3 Qtrs
Issuance of common stock	`StockIssuedDuringPeriodValueNewIssuesNettedAgainstCompensationExpense`	$25.45M	USD	3 Qtrs
Issuance of common stock	`StockIssuedDuringPeriodValueNewIssues`	$9.99M	USD	1 Quarter
Issuance of common stock	`StockIssuedDuringPeriodValueNewIssues`	$9.99M	USD	1 Quarter
Issuance of common stock	`StockIssuedDuringPeriodValueNewIssues`	$21.83M	USD	3 Qtrs
Issuance of common stock	`StockIssuedDuringPeriodValueNewIssues`	$21.83M	USD	3 Qtrs
Issuance of common stock	`StockIssuedDuringPeriodValueNewIssues`	$198.18M	USD	3 Qtrs
Issuance of common stock	`StockIssuedDuringPeriodValueNewIssues`	$198.18M	USD	3 Qtrs
Purchase of treasury stock	`TreasuryStockValueAcquiredCostMethod`	$4.91M	USD	3 Qtrs
Purchase of treasury stock	`TreasuryStockValueAcquiredCostMethod`	$4.91M	USD	3 Qtrs
Reissuance of treasury stock for stock-based compensation and other	`StockIssuedDuringPeriodValueTreasuryStockReissued`	$5.90M	USD	3 Qtrs
Reissuance of treasury stock for stock-based compensation and other	`StockIssuedDuringPeriodValueTreasuryStockReissued`	$5.90M	USD	3 Qtrs
Capital activities by noncontrolling interests	`MinorityInterestDecreaseFromDistributionsToNoncontrollingInterestHolders`	$10.63M	USD	3 Qtrs
Capital activities by noncontrolling interests	`MinorityInterestDecreaseFromDistributionsToNoncontrollingInterestHolders`	$10.63M	USD	3 Qtrs
Capital activities by noncontrolling interests	`MinorityInterestDecreaseFromDistributionsToNoncontrollingInterestHolders`	$2.74M	USD	1 Quarter
Capital activities by noncontrolling interests	`MinorityInterestDecreaseFromDistributionsToNoncontrollingInterestHolders`	$2.74M	USD	1 Quarter
Capital activities by noncontrolling interests	`MinorityInterestDecreaseFromDistributionsToNoncontrollingInterestHolders`	$13.37M	USD	3 Qtrs
Capital activities by noncontrolling interests	`MinorityInterestDecreaseFromDistributionsToNoncontrollingInterestHolders`	$13.37M	USD	3 Qtrs
Deconsolidation of noncontrolling interests	`NoncontrollingInterestDecreaseFromDeconsolidation`	$59.63M	USD	1 Quarter
Deconsolidation of noncontrolling interests	`NoncontrollingInterestDecreaseFromDeconsolidation`	$59.63M	USD	1 Quarter
Deconsolidation of noncontrolling interests	`NoncontrollingInterestDecreaseFromDeconsolidation`	$59.63M	USD	3 Qtrs
Deconsolidation of noncontrolling interests	`NoncontrollingInterestDecreaseFromDeconsolidation`	$59.63M	USD	3 Qtrs
Other	`StockholdersEquityOther`	$-2.00K	USD	1 Quarter
Other	`StockholdersEquityOther`	$-2.00K	USD	1 Quarter
Other	`StockholdersEquityOther`	$-1.00K	USD	3 Qtrs
Other	`StockholdersEquityOther`	$-1.00K	USD	3 Qtrs
Other	`StockholdersEquityOther`	$1.00K	USD	1 Quarter
Other	`StockholdersEquityOther`	$1.00K	USD	1 Quarter
Other	`StockholdersEquityOther`	-	USD	3 Qtrs
Other	`StockholdersEquityOther`	-	USD	3 Qtrs
Ending balance (in shares)	`CommonStockSharesIssued`	119.14M	shares	Point-in-time
Ending balance (in shares)	`CommonStockSharesIssued`	119.14M	shares	Point-in-time
Ending balance (in shares)	`CommonStockSharesIssued`	119.74M	shares	Point-in-time
Ending balance (in shares)	`CommonStockSharesIssued`	119.74M	shares	Point-in-time
Ending balance	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$6.28B	USD	Point-in-time
Ending balance	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$6.28B	USD	Point-in-time
Ending balance	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$6.32B	USD	Point-in-time
Ending balance	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$6.32B	USD	Point-in-time
Ending balance	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$6.73B	USD	Point-in-time
Ending balance	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$6.73B	USD	Point-in-time
Ending balance	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$6.86B	USD	Point-in-time
Ending balance	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$6.86B	USD	Point-in-time
Ending balance	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$6.83B	USD	Point-in-time
Ending balance	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$6.83B	USD	Point-in-time
Ending balance	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$7.21B	USD	Point-in-time
Ending balance	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$7.21B	USD	Point-in-time
Ending balance (in shares)	`TreasuryStockCommonShares`	46,968.00	shares	Point-in-time
Ending balance (in shares)	`TreasuryStockCommonShares`	46,968.00	shares	Point-in-time
Ending balance (in shares)	`TreasuryStockCommonShares`	46,968.00	shares	Point-in-time
Ending balance (in shares)	`TreasuryStockCommonShares`	46,968.00	shares	Point-in-time

Comprehensive Income 72 line items

Line Item	Tag	Value	Unit	Period
Derivative instruments net unrealized gain (loss), net of tax benefit (expense)	`OtherComprehensiveIncomeLossCashFlowHedgeGainLossBeforeReclassificationTax`	$-11.00K	USD	1 Quarter
Derivative instruments net unrealized gain (loss), net of tax benefit (expense)	`OtherComprehensiveIncomeLossCashFlowHedgeGainLossBeforeReclassificationTax`	$-11.00K	USD	1 Quarter
Derivative instruments net unrealized gain (loss), net of tax benefit (expense)	`OtherComprehensiveIncomeLossCashFlowHedgeGainLossBeforeReclassificationTax`	$-142.00K	USD	3 Qtrs
Derivative instruments net unrealized gain (loss), net of tax benefit (expense)	`OtherComprehensiveIncomeLossCashFlowHedgeGainLossBeforeReclassificationTax`	$-142.00K	USD	3 Qtrs
Derivative instruments net unrealized gain (loss), net of tax benefit (expense)	`OtherComprehensiveIncomeLossCashFlowHedgeGainLossBeforeReclassificationTax`	$-42.00K	USD	1 Quarter
Derivative instruments net unrealized gain (loss), net of tax benefit (expense)	`OtherComprehensiveIncomeLossCashFlowHedgeGainLossBeforeReclassificationTax`	$-42.00K	USD	1 Quarter
Derivative instruments net unrealized gain (loss), net of tax benefit (expense)	`OtherComprehensiveIncomeLossCashFlowHedgeGainLossBeforeReclassificationTax`	$-24.00K	USD	3 Qtrs
Derivative instruments net unrealized gain (loss), net of tax benefit (expense)	`OtherComprehensiveIncomeLossCashFlowHedgeGainLossBeforeReclassificationTax`	$-24.00K	USD	3 Qtrs
NET INCOME	`ProfitLoss`	$399.27M	USD	1 Quarter
NET INCOME	`ProfitLoss`	$399.27M	USD	1 Quarter
NET INCOME	`ProfitLoss`	$628.55M	USD	3 Qtrs
NET INCOME	`ProfitLoss`	$628.55M	USD	3 Qtrs
NET INCOME	`ProfitLoss`	$417.51M	USD	1 Quarter
NET INCOME	`ProfitLoss`	$417.51M	USD	1 Quarter
NET INCOME	`ProfitLoss`	$614.05M	USD	3 Qtrs
NET INCOME	`ProfitLoss`	$614.05M	USD	3 Qtrs
Pension and other postretirement benefits activity, tax benefit (expense)	`OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansTax`	$-169.00K	USD	1 Quarter
Pension and other postretirement benefits activity, tax benefit (expense)	`OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansTax`	$-169.00K	USD	1 Quarter
Pension and other postretirement benefits activity, tax benefit (expense)	`OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansTax`	$-251.00K	USD	3 Qtrs
Pension and other postretirement benefits activity, tax benefit (expense)	`OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansTax`	$-251.00K	USD	3 Qtrs
Pension and other postretirement benefits activity, tax benefit (expense)	`OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansTax`	$-156.00K	USD	1 Quarter
Pension and other postretirement benefits activity, tax benefit (expense)	`OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansTax`	$-156.00K	USD	1 Quarter
Pension and other postretirement benefits activity, tax benefit (expense)	`OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansTax`	$-251.00K	USD	3 Qtrs
Pension and other postretirement benefits activity, tax benefit (expense)	`OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansTax`	$-251.00K	USD	3 Qtrs
Derivative instruments net unrealized loss, net of tax benefit of $42, $11, $24 and $142	`OtherComprehensiveIncomeLossCashFlowHedgeGainLossBeforeReclassificationAfterTax`	$-33.00K	USD	1 Quarter
Derivative instruments net unrealized loss, net of tax benefit of $42, $11, $24 and $142	`OtherComprehensiveIncomeLossCashFlowHedgeGainLossBeforeReclassificationAfterTax`	$-33.00K	USD	1 Quarter
Derivative instruments net unrealized loss, net of tax benefit of $42, $11, $24 and $142	`OtherComprehensiveIncomeLossCashFlowHedgeGainLossBeforeReclassificationAfterTax`	$-432.00K	USD	3 Qtrs
Derivative instruments net unrealized loss, net of tax benefit of $42, $11, $24 and $142	`OtherComprehensiveIncomeLossCashFlowHedgeGainLossBeforeReclassificationAfterTax`	$-432.00K	USD	3 Qtrs
Derivative instruments net unrealized loss, net of tax benefit of $42, $11, $24 and $142	`OtherComprehensiveIncomeLossCashFlowHedgeGainLossBeforeReclassificationAfterTax`	$-128.00K	USD	1 Quarter
Derivative instruments net unrealized loss, net of tax benefit of $42, $11, $24 and $142	`OtherComprehensiveIncomeLossCashFlowHedgeGainLossBeforeReclassificationAfterTax`	$-128.00K	USD	1 Quarter
Derivative instruments net unrealized loss, net of tax benefit of $42, $11, $24 and $142	`OtherComprehensiveIncomeLossCashFlowHedgeGainLossBeforeReclassificationAfterTax`	$-72.00K	USD	3 Qtrs
Derivative instruments net unrealized loss, net of tax benefit of $42, $11, $24 and $142	`OtherComprehensiveIncomeLossCashFlowHedgeGainLossBeforeReclassificationAfterTax`	$-72.00K	USD	3 Qtrs
Pension and other postretirement benefits activity, net of tax expense of $(127), $(148), $(216) and $(208)	`OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentNetOfTax`	$-513.00K	USD	1 Quarter
Pension and other postretirement benefits activity, net of tax expense of $(127), $(148), $(216) and $(208)	`OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentNetOfTax`	$-513.00K	USD	1 Quarter
Pension and other postretirement benefits activity, net of tax expense of $(127), $(148), $(216) and $(208)	`OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentNetOfTax`	$-762.00K	USD	3 Qtrs
Pension and other postretirement benefits activity, net of tax expense of $(127), $(148), $(216) and $(208)	`OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentNetOfTax`	$-762.00K	USD	3 Qtrs
Pension and other postretirement benefits activity, net of tax expense of $(127), $(148), $(216) and $(208)	`OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentNetOfTax`	$-478.00K	USD	1 Quarter
Pension and other postretirement benefits activity, net of tax expense of $(127), $(148), $(216) and $(208)	`OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentNetOfTax`	$-478.00K	USD	1 Quarter
Pension and other postretirement benefits activity, net of tax expense of $(127), $(148), $(216) and $(208)	`OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentNetOfTax`	$-923.00K	USD	3 Qtrs
Pension and other postretirement benefits activity, net of tax expense of $(127), $(148), $(216) and $(208)	`OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentNetOfTax`	$-923.00K	USD	3 Qtrs
Total other comprehensive income	`OtherComprehensiveIncomeLossNetOfTax`	$480.00K	USD	1 Quarter
Total other comprehensive income	`OtherComprehensiveIncomeLossNetOfTax`	$480.00K	USD	1 Quarter
Total other comprehensive income	`OtherComprehensiveIncomeLossNetOfTax`	$330.00K	USD	3 Qtrs
Total other comprehensive income	`OtherComprehensiveIncomeLossNetOfTax`	$330.00K	USD	3 Qtrs
Total other comprehensive income	`OtherComprehensiveIncomeLossNetOfTax`	$350.00K	USD	1 Quarter
Total other comprehensive income	`OtherComprehensiveIncomeLossNetOfTax`	$350.00K	USD	1 Quarter
Total other comprehensive income	`OtherComprehensiveIncomeLossNetOfTax`	$851.00K	USD	3 Qtrs
Total other comprehensive income	`OtherComprehensiveIncomeLossNetOfTax`	$851.00K	USD	3 Qtrs
COMPREHENSIVE INCOME	`ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest`	$399.75M	USD	1 Quarter
COMPREHENSIVE INCOME	`ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest`	$399.75M	USD	1 Quarter
COMPREHENSIVE INCOME	`ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest`	$628.88M	USD	3 Qtrs
COMPREHENSIVE INCOME	`ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest`	$628.88M	USD	3 Qtrs
COMPREHENSIVE INCOME	`ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest`	$417.86M	USD	1 Quarter
COMPREHENSIVE INCOME	`ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest`	$417.86M	USD	1 Quarter
COMPREHENSIVE INCOME	`ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest`	$614.90M	USD	3 Qtrs
COMPREHENSIVE INCOME	`ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest`	$614.90M	USD	3 Qtrs
Less: Comprehensive income attributable to noncontrolling interests	`NetIncomeLossAttributableToNoncontrollingInterest`	$4.31M	USD	1 Quarter
Less: Comprehensive income attributable to noncontrolling interests	`NetIncomeLossAttributableToNoncontrollingInterest`	$4.31M	USD	1 Quarter
Less: Comprehensive income attributable to noncontrolling interests	`NetIncomeLossAttributableToNoncontrollingInterest`	$12.92M	USD	3 Qtrs
Less: Comprehensive income attributable to noncontrolling interests	`NetIncomeLossAttributableToNoncontrollingInterest`	$12.92M	USD	3 Qtrs
Less: Comprehensive income attributable to noncontrolling interests	`NetIncomeLossAttributableToNoncontrollingInterest`	$4.31M	USD	1 Quarter
Less: Comprehensive income attributable to noncontrolling interests	`NetIncomeLossAttributableToNoncontrollingInterest`	$4.31M	USD	1 Quarter
Less: Comprehensive income attributable to noncontrolling interests	`NetIncomeLossAttributableToNoncontrollingInterest`	$12.92M	USD	3 Qtrs
Less: Comprehensive income attributable to noncontrolling interests	`NetIncomeLossAttributableToNoncontrollingInterest`	$12.92M	USD	3 Qtrs
COMPREHENSIVE INCOME ATTRIBUTABLE TO COMMON SHAREHOLDERS	`ComprehensiveIncomeNetOfTax`	$395.45M	USD	1 Quarter
COMPREHENSIVE INCOME ATTRIBUTABLE TO COMMON SHAREHOLDERS	`ComprehensiveIncomeNetOfTax`	$395.45M	USD	1 Quarter
COMPREHENSIVE INCOME ATTRIBUTABLE TO COMMON SHAREHOLDERS	`ComprehensiveIncomeNetOfTax`	$615.96M	USD	3 Qtrs
COMPREHENSIVE INCOME ATTRIBUTABLE TO COMMON SHAREHOLDERS	`ComprehensiveIncomeNetOfTax`	$615.96M	USD	3 Qtrs
COMPREHENSIVE INCOME ATTRIBUTABLE TO COMMON SHAREHOLDERS	`ComprehensiveIncomeNetOfTax`	$413.56M	USD	1 Quarter
COMPREHENSIVE INCOME ATTRIBUTABLE TO COMMON SHAREHOLDERS	`ComprehensiveIncomeNetOfTax`	$413.56M	USD	1 Quarter
COMPREHENSIVE INCOME ATTRIBUTABLE TO COMMON SHAREHOLDERS	`ComprehensiveIncomeNetOfTax`	$601.98M	USD	3 Qtrs
COMPREHENSIVE INCOME ATTRIBUTABLE TO COMMON SHAREHOLDERS	`ComprehensiveIncomeNetOfTax`	$601.98M	USD	3 Qtrs

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