10-K Filing

NISOURCE INC. CIK: 1111711 FY 2023

Filing Information

Form Type	10-K
Accession Number	`0001111711-24-000011`
Period End Date	20231231
Filing Date	20240221
Fiscal Year	2023
Fiscal Period	FY
XBRL Instance	nix-20231231_htm.xml

Filing Contents

This filing contains the following financial statements:

Balance Sheet 147 Income Statement 73 Cash Flow Statement 134 Stockholders Equity 44 Comprehensive Income 27

Balance Sheet 147 line items

Line Item	Tag	Value	Unit	Period
Plant	`PublicUtilitiesPropertyPlantAndEquipmentPlantInService`	$30.48B	USD	Point-in-time
Plant	`PublicUtilitiesPropertyPlantAndEquipmentPlantInService`	$27.55B	USD	Point-in-time
Accumulated depreciation and amortization	`PublicUtilitiesPropertyPlantAndEquipmentAccumulatedDepreciation`	$8.21B	USD	Point-in-time
Accumulated depreciation and amortization	`PublicUtilitiesPropertyPlantAndEquipmentAccumulatedDepreciation`	$7.71B	USD	Point-in-time
Net Property, Plant and Equipment	`PublicUtilitiesPropertyPlantAndEquipmentNet`	$19.84B	USD	Point-in-time
Net Property, Plant and Equipment	`PublicUtilitiesPropertyPlantAndEquipmentNet`	$22.27B	USD	Point-in-time
Amortized Cost	`AvailableForSaleDebtSecuritiesAmortizedCostBasis`	$169.00M	USD	Point-in-time
Amortized Cost	`AvailableForSaleDebtSecuritiesAmortizedCostBasis`	$166.70M	USD	Point-in-time
Unconsolidated affiliates	`InvestmentsInAffiliatesSubsidiariesAssociatesAndJointVentures`	$1.60M	USD	Point-in-time
Unconsolidated affiliates	`InvestmentsInAffiliatesSubsidiariesAssociatesAndJointVentures`	$5.30M	USD	Point-in-time
Allowance for Credit Loss	`DebtSecuritiesAvailableForSaleAllowanceForCreditLoss`	$-900.00K	USD	Point-in-time
Available-for-sale debt securities (amortized cost of $169.0 and $166.7, allowance for credit losses of $0.6 and $0.9, respectively)	`AvailableForSaleSecuritiesDebtSecuritiesNoncurrent`	$151.60M	USD	Point-in-time
Allowance for Credit Loss	`DebtSecuritiesAvailableForSaleAllowanceForCreditLoss`	$600.00K	USD	Point-in-time
Available-for-sale debt securities (amortized cost of $169.0 and $166.7, allowance for credit losses of $0.6 and $0.9, respectively)	`AvailableForSaleSecuritiesDebtSecuritiesNoncurrent`	$159.10M	USD	Point-in-time
Other investments	`OtherLongTermInvestments`	$71.00M	USD	Point-in-time
Net Property, Plant and Equipment	`PublicUtilitiesPropertyPlantAndEquipmentNet`	$19.84B	USD	Point-in-time
Other investments	`OtherLongTermInvestments`	$82.70M	USD	Point-in-time
Net Property, Plant and Equipment	`PublicUtilitiesPropertyPlantAndEquipmentNet`	$22.27B	USD	Point-in-time
Current assets	`AssetsCurrent`	$4.50B	USD	Point-in-time
Current assets	`AssetsCurrent`	$2.58B	USD	Point-in-time
Total Investments and Other Assets	`InvestmentsAndOtherNoncurrentAssets`	$224.20M	USD	Point-in-time
Total Investments and Other Assets	`InvestmentsAndOtherNoncurrentAssets`	$247.10M	USD	Point-in-time
Common stock, par value	`CommonStockParOrStatedValuePerShare`	$0.01	USD	Point-in-time
Common stock, par value	`CommonStockParOrStatedValuePerShare`	$0.01	USD	Point-in-time
Common stock, shares authorized	`CommonStockSharesAuthorized`	750.00M	shares	Point-in-time
Cash and cash equivalents	`CashAndCashEquivalentsAtCarryingValue`	$84.20M	USD	Point-in-time
Cash and cash equivalents	`CashAndCashEquivalentsAtCarryingValue`	$2.25B	USD	Point-in-time
Cash and cash equivalents	`CashAndCashEquivalentsAtCarryingValue`	$40.80M	USD	Point-in-time
Common stock, shares authorized	`CommonStockSharesAuthorized`	750.00M	shares	Point-in-time
Restricted cash	`RestrictedCashAndCashEquivalents`	$35.70M	USD	Point-in-time
Restricted cash	`RestrictedCashAndCashEquivalents`	$34.60M	USD	Point-in-time
Restricted cash	`RestrictedCashAndCashEquivalents`	$10.70M	USD	Point-in-time
Common stock, shares outstanding	`CommonStockSharesOutstanding`	447.38M	shares	Point-in-time
Common stock, shares outstanding	`CommonStockSharesOutstanding`	412.14M	shares	Point-in-time
Accounts receivable	`AccountsReceivableGrossCurrent`	$884.90M	USD	Point-in-time
Accounts receivable	`AccountsReceivableGrossCurrent`	$1.07B	USD	Point-in-time
Preferred Stock, Par or Stated Value Per Share	`PreferredStockParOrStatedValuePerShare`	$0.01	USD	Point-in-time
Preferred Stock, Par or Stated Value Per Share	`PreferredStockParOrStatedValuePerShare`	$0.01	USD	Point-in-time
Allowance for credit losses	`AllowanceForDoubtfulAccountsReceivableCurrent`	$22.90M	USD	Point-in-time
Preferred Stock, Shares Authorized	`PreferredStockSharesAuthorized`	20.00M	shares	Point-in-time
Preferred Stock, Shares Authorized	`PreferredStockSharesAuthorized`	20.00M	shares	Point-in-time
Allowance for credit losses	`AllowanceForDoubtfulAccountsReceivableCurrent`	$23.90M	USD	Point-in-time
Accounts receivable, net	`AccountsReceivableNetCurrent`	$862.00M	USD	Point-in-time
Preferred Stock, Shares Outstanding	`PreferredStockSharesOutstanding`	1.30M	shares	Point-in-time
Accounts receivable, net	`AccountsReceivableNetCurrent`	$1.04B	USD	Point-in-time
Preferred Stock, Shares Outstanding	`PreferredStockSharesOutstanding`	40,000.00	shares	Point-in-time
Current liabilities	`LiabilitiesCurrent`	$5.27B	USD	Point-in-time
Gas inventory	`EnergyRelatedInventoryNaturalGasInStorage`	$531.70M	USD	Point-in-time
Current liabilities	`LiabilitiesCurrent`	$4.66B	USD	Point-in-time
Gas inventory	`EnergyRelatedInventoryNaturalGasInStorage`	$265.80M	USD	Point-in-time
Materials and supplies, at average cost	`InventoryRawMaterialsAndSupplies`	$151.40M	USD	Point-in-time
Materials and supplies, at average cost	`InventoryRawMaterialsAndSupplies`	$172.10M	USD	Point-in-time
Liabilities, Noncurrent	`LiabilitiesNoncurrent`	$4.62B	USD	Point-in-time
Liabilities, Noncurrent	`LiabilitiesNoncurrent`	$4.65B	USD	Point-in-time
Electric production fuel, at average cost	`EnergyRelatedInventoryCoal`	$65.30M	USD	Point-in-time
Electric production fuel, at average cost	`EnergyRelatedInventoryCoal`	$68.80M	USD	Point-in-time
Deposits to renewable generation asset developer	`DepositsToRenewableGenerationAssetDeveloper`	$143.80M	USD	Point-in-time
Deposits to renewable generation asset developer	`DepositsToRenewableGenerationAssetDeveloper`	$454.20M	USD	Point-in-time
Obligations to renewable generation asset developer	`ObligationsToRenewableGenerationAssetDeveloper`	$347.20M	USD	Point-in-time
Exchange gas receivable	`ExchangeGasReceivable`	$128.10M	USD	Point-in-time
Exchange gas receivable	`ExchangeGasReceivable`	$66.00M	USD	Point-in-time
Obligations to renewable generation asset developer	`ObligationsToRenewableGenerationAssetDeveloper`	-	USD	Point-in-time
Regulatory assets	`RegulatoryAssetsCurrent`	$214.30M	USD	Point-in-time
Regulatory assets	`RegulatoryAssetsCurrent`	$233.20M	USD	Point-in-time
Deposits to renewable generation asset developer	`DepositsToRenewableGenerationAssetDeveloper`	$143.80M	USD	Point-in-time
Deposits to renewable generation asset developer	`DepositsToRenewableGenerationAssetDeveloper`	$454.20M	USD	Point-in-time
Prepayments and other	`OtherAssetsCurrent`	$118.60M	USD	Point-in-time
Prepayments and other	`OtherAssetsCurrent`	$210.00M	USD	Point-in-time
Total Current Assets	`AssetsCurrent`	$4.50B	USD	Point-in-time
Total Current Assets	`AssetsCurrent`	$2.58B	USD	Point-in-time
Regulatory assets	`RegulatoryAssetsNoncurrent`	$2.35B	USD	Point-in-time
Regulatory assets	`RegulatoryAssetsNoncurrent`	$2.25B	USD	Point-in-time
Goodwill	`Goodwill`	$1.49B	USD	Point-in-time
Goodwill	`Goodwill`	$1.49B	USD	Point-in-time
Deferred charges and other	`DeferredChargesAndOther`	$324.00M	USD	Point-in-time
Deferred charges and other	`DeferredChargesAndOther`	$252.00M	USD	Point-in-time
Total Other Assets	`OtherAssetsNoncurrent`	$4.09B	USD	Point-in-time
Total Other Assets	`OtherAssetsNoncurrent`	$4.06B	USD	Point-in-time
Total Assets	`Assets`	$24.16B	USD	Point-in-time
Total Assets	`Assets`	$26.74B	USD	Point-in-time
Total Assets	`Assets`	$31.08B	USD	Point-in-time
Common stock - $0.01 par value, 750,000,000 shares authorized; 447,381,671 and 412,142,602 shares outstanding, respectively	`CommonStockValue`	$4.50M	USD	Point-in-time
Common stock - $0.01 par value, 750,000,000 shares authorized; 447,381,671 and 412,142,602 shares outstanding, respectively	`CommonStockValue`	$4.20M	USD	Point-in-time
Preferred stock - $0.01 par value, 20,000,000 shares authorized; 40,000 and 1,302,500 shares outstanding, respectively	`PreferredStockValueOutstanding`	$486.10M	USD	Point-in-time
Preferred stock - $0.01 par value, 20,000,000 shares authorized; 40,000 and 1,302,500 shares outstanding, respectively	`PreferredStockValueOutstanding`	$1.55B	USD	Point-in-time
Treasury stock	`TreasuryStockValue`	$99.90M	USD	Point-in-time
Treasury stock	`TreasuryStockValue`	$99.90M	USD	Point-in-time
Additional paid-in capital	`AdditionalPaidInCapitalCommonStock`	$8.88B	USD	Point-in-time
Additional paid-in capital	`AdditionalPaidInCapitalCommonStock`	$7.38B	USD	Point-in-time
Retained deficit	`RetainedEarningsAccumulatedDeficit`	$-1.21B	USD	Point-in-time
Retained deficit	`RetainedEarningsAccumulatedDeficit`	$-967.00M	USD	Point-in-time
Accumulated other comprehensive loss	`AccumulatedOtherComprehensiveIncomeLossNetOfTax`	$-33.60M	USD	Point-in-time
Accumulated other comprehensive loss	`AccumulatedOtherComprehensiveIncomeLossNetOfTax`	$-37.10M	USD	Point-in-time
Accumulated other comprehensive loss	`AccumulatedOtherComprehensiveIncomeLossNetOfTax`	$-156.70M	USD	Point-in-time
Accumulated other comprehensive loss	`AccumulatedOtherComprehensiveIncomeLossNetOfTax`	$-126.80M	USD	Point-in-time
Total NiSource Stockholders' Equity	`StockholdersEquity`	$8.27B	USD	Point-in-time
Total NiSource Stockholders' Equity	`StockholdersEquity`	$7.58B	USD	Point-in-time
Noncontrolling interest in consolidated subsidiaries	`MinorityInterest`	$326.40M	USD	Point-in-time
Noncontrolling interest in consolidated subsidiaries	`MinorityInterest`	$1.87B	USD	Point-in-time
Total Stockholders Equity	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$10.14B	USD	Point-in-time
Total Stockholders Equity	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$7.90B	USD	Point-in-time
Total Stockholders Equity	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$7.27B	USD	Point-in-time
Total Stockholders Equity	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$5.84B	USD	Point-in-time
Long-term debt, excluding amounts due within one year	`LongTermDebtAndCapitalLeaseObligations`	$9.52B	USD	Point-in-time
Long-term debt, excluding amounts due within one year	`LongTermDebtAndCapitalLeaseObligations`	$11.06B	USD	Point-in-time
Total Capitalization	`CapitalizationLongtermDebtAndEquity`	$21.19B	USD	Point-in-time
Total Capitalization	`CapitalizationLongtermDebtAndEquity`	$17.43B	USD	Point-in-time
Current portion of long-term debt	`LongTermDebtAndCapitalLeaseObligationsCurrent`	$30.00M	USD	Point-in-time
Current portion of long-term debt	`LongTermDebtAndCapitalLeaseObligationsCurrent`	$23.80M	USD	Point-in-time
Short-term borrowings	`ShortTermBorrowings`	$1.76B	USD	Point-in-time
Short-term borrowings	`ShortTermBorrowings`	$3.05B	USD	Point-in-time
Accounts payable	`AccountsPayableCurrent`	$749.40M	USD	Point-in-time
Accounts payable	`AccountsPayableCurrent`	$899.50M	USD	Point-in-time
Customer deposits and credits	`ContractWithCustomerLiabilityCurrent`	$324.70M	USD	Point-in-time
Customer deposits and credits	`ContractWithCustomerLiabilityCurrent`	$294.40M	USD	Point-in-time
Taxes accrued	`TaxesPayableCurrent`	$246.20M	USD	Point-in-time
Taxes accrued	`TaxesPayableCurrent`	$166.20M	USD	Point-in-time
Interest accrued	`InterestPayableCurrent`	$136.10M	USD	Point-in-time
Interest accrued	`InterestPayableCurrent`	$138.40M	USD	Point-in-time
Exchange gas payable	`ExchangeGasPayable`	$50.50M	USD	Point-in-time
Exchange gas payable	`ExchangeGasPayable`	$147.60M	USD	Point-in-time
Regulatory liabilities	`RegulatoryLiabilityCurrent`	$278.60M	USD	Point-in-time
Regulatory liabilities	`RegulatoryLiabilityCurrent`	$236.80M	USD	Point-in-time
Accrued compensation and employee benefits	`EmployeeRelatedLiabilitiesCurrent`	$167.50M	USD	Point-in-time
Accrued compensation and employee benefits	`EmployeeRelatedLiabilitiesCurrent`	$227.60M	USD	Point-in-time
Other accruals	`OtherLiabilitiesCurrent`	$325.20M	USD	Point-in-time
Other accruals	`OtherLiabilitiesCurrent`	$217.40M	USD	Point-in-time
Total Current Liabilities	`LiabilitiesCurrent`	$5.27B	USD	Point-in-time
Total Current Liabilities	`LiabilitiesCurrent`	$4.66B	USD	Point-in-time
Deferred Income Tax Liabilities, Net	`DeferredIncomeTaxLiabilitiesNet`	$2.08B	USD	Point-in-time
Deferred Income Tax Liabilities, Net	`DeferredIncomeTaxLiabilitiesNet`	$1.85B	USD	Point-in-time
Accrued liability for postretirement and postemployment benefits	`PensionAndOtherPostretirementAndPostemploymentBenefitPlansLiabilitiesNoncurrent`	$245.50M	USD	Point-in-time
Accrued liability for postretirement and postemployment benefits	`PensionAndOtherPostretirementAndPostemploymentBenefitPlansLiabilitiesNoncurrent`	$250.10M	USD	Point-in-time
Regulatory liabilities	`RegulatoryLiabilityNoncurrent`	$1.51B	USD	Point-in-time
Regulatory liabilities	`RegulatoryLiabilityNoncurrent`	$1.78B	USD	Point-in-time
Asset retirement obligations	`AssetRetirementObligationsNoncurrent`	$478.10M	USD	Point-in-time
Asset retirement obligations	`AssetRetirementObligationsNoncurrent`	$480.50M	USD	Point-in-time
Other noncurrent liabilities	`OtherLiabilitiesNoncurrent`	$296.80M	USD	Point-in-time
Other noncurrent liabilities	`OtherLiabilitiesNoncurrent`	$298.60M	USD	Point-in-time
Total Other Liabilities(1)	`LiabilitiesNoncurrent`	$4.62B	USD	Point-in-time
Total Other Liabilities(1)	`LiabilitiesNoncurrent`	$4.65B	USD	Point-in-time
Total Capitalization and Liabilities	`LiabilitiesAndStockholdersEquity`	$31.08B	USD	Point-in-time
Total Capitalization and Liabilities	`LiabilitiesAndStockholdersEquity`	$26.74B	USD	Point-in-time
Obligations to renewable generation asset developer	`ObligationsToRenewableGenerationAssetDeveloper`	$347.20M	USD	Point-in-time
Obligations to renewable generation asset developer	`ObligationsToRenewableGenerationAssetDeveloper`	-	USD	Point-in-time
Asset Retirement Obligation, Current	`AssetRetirementObligationCurrent`	$35.50M	USD	Point-in-time
Asset Retirement Obligation, Current	`AssetRetirementObligationCurrent`	$72.50M	USD	Point-in-time

Income Statement 73 line items

Line Item	Tag	Value	Unit	Period
Customer revenues	`RevenueFromContractWithCustomerExcludingAssessedTax`	$5.35B	USD	Annual
Customer revenues	`RevenueFromContractWithCustomerExcludingAssessedTax`	$4.73B	USD	Annual
Customer revenues	`RevenueFromContractWithCustomerExcludingAssessedTax`	$5.74B	USD	Annual
Other revenues	`RegulatedOperatingRevenueOther`	$112.00M	USD	Annual
Other revenues	`RegulatedOperatingRevenueOther`	$168.30M	USD	Annual
Other revenues	`RegulatedOperatingRevenueOther`	$157.60M	USD	Annual
Total Operating Revenues	`RegulatedOperatingRevenue`	$5.85B	USD	Annual
Total Operating Revenues	`RegulatedOperatingRevenue`	$5.51B	USD	Annual
Total Operating Revenues	`RegulatedOperatingRevenue`	$4.90B	USD	Annual
Cost of energy	`CostOfGoodsAndServiceExcludingDepreciationDepletionAndAmortization`	$1.39B	USD	Annual
Cost of energy	`CostOfGoodsAndServiceExcludingDepreciationDepletionAndAmortization`	$2.11B	USD	Annual
Cost of energy	`CostOfGoodsAndServiceExcludingDepreciationDepletionAndAmortization`	$1.53B	USD	Annual
Operation and maintenance	`UtilitiesOperatingExpenseMaintenanceAndOperations`	$1.46B	USD	Annual
Operation and maintenance	`UtilitiesOperatingExpenseMaintenanceAndOperations`	$1.49B	USD	Annual
Operation and maintenance	`UtilitiesOperatingExpenseMaintenanceAndOperations`	$1.49B	USD	Annual
Depreciation and amortization	`DepreciationDepletionAndAmortization`	$908.20M	USD	Annual
Depreciation and amortization	`DepreciationDepletionAndAmortization`	$820.80M	USD	Annual
Depreciation and amortization	`DepreciationDepletionAndAmortization`	$748.40M	USD	Annual
Loss (gain) on sale of assets, net	`ImpairmentAndGainLossOnSaleOfAssetsNet`	$-104.20M	USD	Annual
Loss (gain) on sale of assets, net	`ImpairmentAndGainLossOnSaleOfAssetsNet`	$2.90M	USD	Annual
Loss (gain) on sale of assets, net	`ImpairmentAndGainLossOnSaleOfAssetsNet`	$7.70M	USD	Annual
Other taxes	`TaxesExcludingIncomeAndExciseTaxes`	$288.30M	USD	Annual
Other taxes	`TaxesExcludingIncomeAndExciseTaxes`	$268.30M	USD	Annual
Other taxes	`TaxesExcludingIncomeAndExciseTaxes`	$270.60M	USD	Annual
Total Operating Expenses	`OperatingCostsAndExpenses`	$4.21B	USD	Annual
Total Operating Expenses	`OperatingCostsAndExpenses`	$3.89B	USD	Annual
Total Operating Expenses	`OperatingCostsAndExpenses`	$4.58B	USD	Annual
Operating Income	`OperatingIncomeLoss`	$1.01B	USD	Annual
Operating Income	`OperatingIncomeLoss`	$1.30B	USD	Annual
Operating Income	`OperatingIncomeLoss`	$1.27B	USD	Annual
Interest expense, net	`InterestExpense`	$489.60M	USD	Annual
Interest expense, net	`InterestExpense`	$361.60M	USD	Annual
Interest expense, net	`InterestExpense`	$341.10M	USD	Annual
Other, net	`OtherNonoperatingIncomeExpense`	$8.00M	USD	Annual
Other, net	`OtherNonoperatingIncomeExpense`	$40.80M	USD	Annual
Other, net	`OtherNonoperatingIncomeExpense`	$52.20M	USD	Annual
Total Other Deductions, Net	`NonoperatingIncomeExpense`	$-309.40M	USD	Annual
Total Other Deductions, Net	`NonoperatingIncomeExpense`	$-300.30M	USD	Annual
Total Other Deductions, Net	`NonoperatingIncomeExpense`	$-481.60M	USD	Annual
Income before Income Taxes	`IncomeLossFromContinuingOperationsBeforeIncomeTaxesDomestic`	$813.90M	USD	Annual
Income before Income Taxes	`IncomeLossFromContinuingOperationsBeforeIncomeTaxesDomestic`	$706.60M	USD	Annual
Income before Income Taxes	`IncomeLossFromContinuingOperationsBeforeIncomeTaxesDomestic`	$956.40M	USD	Annual
Income Taxes	`IncomeTaxExpenseBenefit`	$164.60M	USD	Annual
Income Taxes	`IncomeTaxExpenseBenefit`	$139.50M	USD	Annual
Income Taxes	`IncomeTaxExpenseBenefit`	$117.80M	USD	Annual
Net Income	`ProfitLoss`	$588.80M	USD	Annual
Net Income	`ProfitLoss`	$791.80M	USD	Annual
Net Income	`ProfitLoss`	$674.40M	USD	Annual
Net (loss) income attributable to noncontrolling interest	`NetIncomeLossAttributableToNoncontrollingInterest`	$3.90M	USD	Annual
Net Income attributable to NiSource	`NetIncomeLoss`	$584.90M	USD	Annual
Net Income attributable to NiSource	`NetIncomeLoss`	$804.10M	USD	Annual
Net Income attributable to NiSource	`NetIncomeLoss`	$714.30M	USD	Annual
Preferred dividends	`PreferredStockDividendsIncomeStatementImpact`	$55.10M	USD	Annual
Preferred dividends	`PreferredStockDividendsIncomeStatementImpact`	$42.80M	USD	Annual
Preferred dividends	`PreferredStockDividendsIncomeStatementImpact`	$55.10M	USD	Annual
Net Income Available to Common Shareholders	`NetIncomeLossAvailableToCommonStockholdersBasic`	$529.80M	USD	Annual
Net Income Available to Common Shareholders	`NetIncomeLossAvailableToCommonStockholdersBasic`	$661.70M	USD	Annual
Net Income Available to Common Shareholders	`NetIncomeLossAvailableToCommonStockholdersBasic`	$749.00M	USD	Annual
Basic Earnings Per Share	`EarningsPerShareBasic`	$1.35	USD	Annual
Basic Earnings Per Share	`EarningsPerShareBasic`	$1.84	USD	Annual
Basic Earnings Per Share	`EarningsPerShareBasic`	$1.59	USD	Annual
Diluted Earnings Per Share	`EarningsPerShareDiluted`	$1.48	USD	Annual
Diluted Earnings Per Share	`EarningsPerShareDiluted`	$1.70	USD	Annual
Diluted Earnings Per Share	`EarningsPerShareDiluted`	$1.27	USD	Annual
Average common shares outstanding - Basic	`WeightedAverageNumberOfSharesOutstandingBasic`	393.60M	shares	Annual
Average common shares outstanding - Basic	`WeightedAverageNumberOfSharesOutstandingBasic`	407.10M	shares	Annual
Average common shares outstanding - Basic	`WeightedAverageNumberOfSharesOutstandingBasic`	416.10M	shares	Annual
Diluted Average Common Shares	`WeightedAverageNumberOfDilutedSharesOutstanding`	447.90M	shares	Annual
Diluted Average Common Shares	`WeightedAverageNumberOfDilutedSharesOutstanding`	442.70M	shares	Annual
Diluted Average Common Shares	`WeightedAverageNumberOfDilutedSharesOutstanding`	417.30M	shares	Annual
Preferred Stock Redemption Premium	`PreferredStockRedemptionPremium`	-	USD	Annual
Preferred Stock Redemption Premium	`PreferredStockRedemptionPremium`	-	USD	Annual
Preferred Stock Redemption Premium	`PreferredStockRedemptionPremium`	$9.80M	USD	Annual

Cash Flow Statement 134 line items

Line Item	Tag	Value	Unit	Period
Net Income	`ProfitLoss`	$588.80M	USD	Annual
Net Income	`ProfitLoss`	$791.80M	USD	Annual
Net Income	`ProfitLoss`	$674.40M	USD	Annual
Depreciation and amortization	`DepreciationDepletionAndAmortization`	$908.20M	USD	Annual
Depreciation and amortization	`DepreciationDepletionAndAmortization`	$820.80M	USD	Annual
Depreciation and amortization	`DepreciationDepletionAndAmortization`	$748.40M	USD	Annual
Deferred income taxes and investment tax credits	`DeferredIncomeTaxesAndTaxCredits`	$111.90M	USD	Annual
Deferred income taxes and investment tax credits	`DeferredIncomeTaxesAndTaxCredits`	$134.10M	USD	Annual
Deferred income taxes and investment tax credits	`DeferredIncomeTaxesAndTaxCredits`	$156.90M	USD	Annual
Stock compensation expense and 401(k) profit sharing contribution	`ShareBasedCompensation`	$24.90M	USD	Annual
Stock compensation expense and 401(k) profit sharing contribution	`ShareBasedCompensation`	$33.50M	USD	Annual
Stock compensation expense and 401(k) profit sharing contribution	`ShareBasedCompensation`	$24.30M	USD	Annual
Loss (gain) on sale of assets	`GainLossOnDispositionOfAssets1`	$105.30M	USD	Annual
Loss (gain) on sale of assets	`GainLossOnDispositionOfAssets1`	$-2.90M	USD	Annual
Loss (gain) on sale of assets	`GainLossOnDispositionOfAssets1`	$-5.60M	USD	Annual
Other adjustments	`OtherOperatingActivitiesCashFlowStatement`	$5.70M	USD	Annual
Other adjustments	`OtherOperatingActivitiesCashFlowStatement`	$-700.00K	USD	Annual
Other adjustments	`OtherOperatingActivitiesCashFlowStatement`	$-17.90M	USD	Annual
Accounts receivable	`IncreaseDecreaseInAccountsReceivable`	$216.30M	USD	Annual
Accounts receivable	`IncreaseDecreaseInAccountsReceivable`	$40.30M	USD	Annual
Accounts receivable	`IncreaseDecreaseInAccountsReceivable`	$-184.10M	USD	Annual
Gas storage and other inventories	`IncreaseDecreaseInInventories`	$-233.90M	USD	Annual
Gas storage and other inventories	`IncreaseDecreaseInInventories`	$112.90M	USD	Annual
Gas storage and other inventories	`IncreaseDecreaseInInventories`	$258.90M	USD	Annual
Accounts payable	`IncreaseDecreaseInAccountsPayable`	$54.90M	USD	Annual
Accounts payable	`IncreaseDecreaseInAccountsPayable`	$165.00M	USD	Annual
Accounts payable	`IncreaseDecreaseInAccountsPayable`	$-171.80M	USD	Annual
Exchange gas receivable/payable	`IncreaseDecreaseInExchangeGasReceivablePayable`	$114.20M	USD	Annual
Exchange gas receivable/payable	`IncreaseDecreaseInExchangeGasReceivablePayable`	$-126.50M	USD	Annual
Exchange gas receivable/payable	`IncreaseDecreaseInExchangeGasReceivablePayable`	$-57.80M	USD	Annual
Other accruals	`IncreaseDecreaseInOtherAccruals`	$102.90M	USD	Annual
Other accruals	`IncreaseDecreaseInOtherAccruals`	$-73.40M	USD	Annual
Other accruals	`IncreaseDecreaseInOtherAccruals`	$-43.00M	USD	Annual
Prepayments and other current assets	`IncreaseDecreaseInPrepaymentsAndOtherCurrentAssets`	$-9.80M	USD	Annual
Prepayments and other current assets	`IncreaseDecreaseInPrepaymentsAndOtherCurrentAssets`	$36.70M	USD	Annual
Prepayments and other current assets	`IncreaseDecreaseInPrepaymentsAndOtherCurrentAssets`	$-36.60M	USD	Annual
Regulatory assets/liabilities	`IncreaseDecreaseInRegulatoryAssetsAndLiabilities`	$129.40M	USD	Annual
Regulatory assets/liabilities	`IncreaseDecreaseInRegulatoryAssetsAndLiabilities`	$-76.80M	USD	Annual
Regulatory assets/liabilities	`IncreaseDecreaseInRegulatoryAssetsAndLiabilities`	$26.20M	USD	Annual
Postretirement and postemployment benefits	`IncreaseDecreaseInEmployeeRelatedLiabilities`	$-22.00M	USD	Annual
Postretirement and postemployment benefits	`IncreaseDecreaseInEmployeeRelatedLiabilities`	$-96.40M	USD	Annual
Postretirement and postemployment benefits	`IncreaseDecreaseInEmployeeRelatedLiabilities`	$84.70M	USD	Annual
Deferred charges and other noncurrent assets	`IncreaseDecreaseInDeferredChargesAndOtherNonCurrentAssets`	$-4.70M	USD	Annual
Deferred charges and other noncurrent assets	`IncreaseDecreaseInDeferredChargesAndOtherNonCurrentAssets`	$-10.10M	USD	Annual
Deferred charges and other noncurrent assets	`IncreaseDecreaseInDeferredChargesAndOtherNonCurrentAssets`	$-4.10M	USD	Annual
Other noncurrent liabilities and deferred credits	`IncreaseDecreaseInOtherOperatingLiabilities`	$-47.80M	USD	Annual
Other noncurrent liabilities and deferred credits	`IncreaseDecreaseInOtherOperatingLiabilities`	$-48.30M	USD	Annual
Other noncurrent liabilities and deferred credits	`IncreaseDecreaseInOtherOperatingLiabilities`	$-30.00M	USD	Annual
Net Cash Flows from Operating Activities	`NetCashProvidedByUsedInOperatingActivities`	$1.22B	USD	Annual
Net Cash Flows from Operating Activities	`NetCashProvidedByUsedInOperatingActivities`	$1.94B	USD	Annual
Net Cash Flows from Operating Activities	`NetCashProvidedByUsedInOperatingActivities`	$1.41B	USD	Annual
Capital expenditures	`PaymentsToAcquirePropertyPlantAndEquipment`	$2.20B	USD	Annual
Capital expenditures	`PaymentsToAcquirePropertyPlantAndEquipment`	$2.65B	USD	Annual
Capital expenditures	`PaymentsToAcquirePropertyPlantAndEquipment`	$1.84B	USD	Annual
Proceeds from Insurance Settlement, Investing Activities	`ProceedsFromInsuranceSettlementInvestingActivities`	-	USD	Annual
Proceeds from Insurance Settlement, Investing Activities	`ProceedsFromInsuranceSettlementInvestingActivities`	$105.00M	USD	Annual
Proceeds from Insurance Settlement, Investing Activities	`ProceedsFromInsuranceSettlementInvestingActivities`	$3.00M	USD	Annual
Cost of removal	`PaymentsForRemovalCosts`	$151.70M	USD	Annual
Cost of removal	`PaymentsForRemovalCosts`	$121.10M	USD	Annual
Cost of removal	`PaymentsForRemovalCosts`	$160.80M	USD	Annual
Purchases of available-for-sale securities	`PaymentsToAcquireAvailableForSaleSecuritiesDebt`	$42.80M	USD	Annual
Purchases of available-for-sale securities	`PaymentsToAcquireAvailableForSaleSecuritiesDebt`	$73.50M	USD	Annual
Purchases of available-for-sale securities	`PaymentsToAcquireAvailableForSaleSecuritiesDebt`	$102.90M	USD	Annual
Sales of available-for-sale securities	`ProceedsFromSaleOfAvailableForSaleSecuritiesDebt`	$97.80M	USD	Annual
Sales of available-for-sale securities	`ProceedsFromSaleOfAvailableForSaleSecuritiesDebt`	$75.70M	USD	Annual
Sales of available-for-sale securities	`ProceedsFromSaleOfAvailableForSaleSecuritiesDebt`	$39.90M	USD	Annual
Milestone and final payments to renewable generation asset developer	`PaymentToRenewableGenerationAssetDeveloper`	$761.40M	USD	Annual
Milestone and final payments to renewable generation asset developer	`PaymentToRenewableGenerationAssetDeveloper`	$323.90M	USD	Annual
Milestone and final payments to renewable generation asset developer	`PaymentToRenewableGenerationAssetDeveloper`	$240.40M	USD	Annual
Other investing activities	`PaymentsForProceedsFromOtherInvestingActivities`	$-1.30M	USD	Annual
Other investing activities	`PaymentsForProceedsFromOtherInvestingActivities`	$3.70M	USD	Annual
Other investing activities	`PaymentsForProceedsFromOtherInvestingActivities`	$1.00M	USD	Annual
Net Cash Flows used for Investing Activities	`NetCashProvidedByUsedInInvestingActivities`	$-2.20B	USD	Annual
Net Cash Flows used for Investing Activities	`NetCashProvidedByUsedInInvestingActivities`	$-3.57B	USD	Annual
Net Cash Flows used for Investing Activities	`NetCashProvidedByUsedInInvestingActivities`	$-2.57B	USD	Annual
Proceeds from issuance of long-term debt	`ProceedsFromIssuanceOfLongTermDebt`	$345.60M	USD	Annual
Proceeds from issuance of long-term debt	`ProceedsFromIssuanceOfLongTermDebt`	$1.49B	USD	Annual
Proceeds from issuance of long-term debt	`ProceedsFromIssuanceOfLongTermDebt`	-	USD	Annual
Repayments of long-term debt and finance lease obligations	`RepaymentsOfLongTermDebtAndCapitalSecurities`	$33.10M	USD	Annual
Repayments of long-term debt and finance lease obligations	`RepaymentsOfLongTermDebtAndCapitalSecurities`	$60.30M	USD	Annual
Repayments of long-term debt and finance lease obligations	`RepaymentsOfLongTermDebtAndCapitalSecurities`	$25.70M	USD	Annual
Issuance of short term credit agreements	`ProceedsFromShortTermDebtMaturingInMoreThanThreeMonths`	-	USD	Annual
Issuance of short term credit agreements	`ProceedsFromShortTermDebtMaturingInMoreThanThreeMonths`	$1.00B	USD	Annual
Repayment of short-term debt (maturity > 90 days)	`RepaymentsOfShortTermDebtMaturingInMoreThanThreeMonths`	$650.00M	USD	Annual
Net change in commercial paper and other short-term borrowings	`ProceedsFromRepaymentsOfShortTermDebtMaturingInThreeMonthsOrLess`	$57.00M	USD	Annual
Net change in commercial paper and other short-term borrowings	`ProceedsFromRepaymentsOfShortTermDebtMaturingInThreeMonthsOrLess`	$202.20M	USD	Annual
Net change in commercial paper and other short-term borrowings	`ProceedsFromRepaymentsOfShortTermDebtMaturingInThreeMonthsOrLess`	$636.40M	USD	Annual
Issuance of common stock, net of issuance costs	`ProceedsFromIssuanceOfCommonStock`	$12.90M	USD	Annual
Issuance of common stock, net of issuance costs	`ProceedsFromIssuanceOfCommonStock`	$154.30M	USD	Annual
Issuance of common stock, net of issuance costs	`ProceedsFromIssuanceOfCommonStock`	$299.60M	USD	Annual
Equity costs, premiums and other debt related costs	`PaymentOfFinancingAndStockIssuanceCosts`	$30.20M	USD	Annual
Equity costs, premiums and other debt related costs	`PaymentOfFinancingAndStockIssuanceCosts`	$13.00M	USD	Annual
Equity costs, premiums and other debt related costs	`PaymentOfFinancingAndStockIssuanceCosts`	$18.20M	USD	Annual
Contributions from noncontrolling interests	`ProceedsFromMinorityShareholders`	$21.20M	USD	Annual
Contributions from noncontrolling interests	`ProceedsFromMinorityShareholders`	$2.40B	USD	Annual
Contributions from noncontrolling interests	`ProceedsFromMinorityShareholders`	$245.10M	USD	Annual
Distributions to noncontrolling interest	`PaymentsToMinorityShareholders`	$600.00K	USD	Annual
Distributions to noncontrolling interest	`PaymentsToMinorityShareholders`	$14.10M	USD	Annual
Distributions to noncontrolling interest	`PaymentsToMinorityShareholders`	$6.00M	USD	Annual
Issuance of equity units, net of underwriting costs	`ProceedsFromOtherEquity`	$839.90M	USD	Annual
Issuance of equity units, net of underwriting costs	`ProceedsFromOtherEquity`	-	USD	Annual
Issuance of equity units, net of underwriting costs	`ProceedsFromOtherEquity`	-	USD	Annual
Dividends paid - common stock	`PaymentsOfDividendsCommonStock`	$413.50M	USD	Annual
Dividends paid - common stock	`PaymentsOfDividendsCommonStock`	$345.20M	USD	Annual
Dividends paid - common stock	`PaymentsOfDividendsCommonStock`	$381.50M	USD	Annual
Preferred Stock Redemption Premium	`PreferredStockRedemptionPremium`	-	USD	Annual
Preferred Stock Redemption Premium	`PreferredStockRedemptionPremium`	-	USD	Annual
Preferred Stock Redemption Premium	`PreferredStockRedemptionPremium`	$9.80M	USD	Annual
Dividends paid - preferred stock	`PaymentsOfDividendsPreferredStockAndPreferenceStock`	$43.80M	USD	Annual
Dividends paid - preferred stock	`PaymentsOfDividendsPreferredStockAndPreferenceStock`	$55.10M	USD	Annual
Dividends paid - preferred stock	`PaymentsOfDividendsPreferredStockAndPreferenceStock`	$55.10M	USD	Annual
Contract liability payment	`ProceedsFromPaymentsForOtherFinancingActivities`	$-66.10M	USD	Annual
Contract liability payment	`ProceedsFromPaymentsForOtherFinancingActivities`	$-66.60M	USD	Annual
Contract liability payment	`ProceedsFromPaymentsForOtherFinancingActivities`	$-40.50M	USD	Annual
Net Cash Flows from Financing Activities	`NetCashProvidedByUsedInFinancingActivities`	$3.84B	USD	Annual
Net Cash Flows from Financing Activities	`NetCashProvidedByUsedInFinancingActivities`	$956.30M	USD	Annual
Net Cash Flows from Financing Activities	`NetCashProvidedByUsedInFinancingActivities`	$1.14B	USD	Annual
Change in cash, cash equivalents and restricted cash	`CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseExcludingExchangeRateEffect`	$-30.70M	USD	Annual
Change in cash, cash equivalents and restricted cash	`CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseExcludingExchangeRateEffect`	$-19.50M	USD	Annual
Change in cash, cash equivalents and restricted cash	`CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseExcludingExchangeRateEffect`	$2.21B	USD	Annual
Cash, cash equivalents and restricted cash at beginning of period	`CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents`	$75.40M	USD	Point-in-time
Cash, cash equivalents and restricted cash at beginning of period	`CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents`	$94.90M	USD	Point-in-time
Cash, cash equivalents and restricted cash at beginning of period	`CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents`	$2.28B	USD	Point-in-time
Cash, cash equivalents and restricted cash at beginning of period	`CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents`	$125.60M	USD	Point-in-time
Cash, Cash Equivalents and Restricted Cash at End of Period	`CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents`	$75.40M	USD	Point-in-time
Cash, Cash Equivalents and Restricted Cash at End of Period	`CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents`	$94.90M	USD	Point-in-time
Cash, Cash Equivalents and Restricted Cash at End of Period	`CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents`	$2.28B	USD	Point-in-time
Cash, Cash Equivalents and Restricted Cash at End of Period	`CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents`	$125.60M	USD	Point-in-time
Repayments of Other Debt	`RepaymentsOfOtherDebt`	-	USD	Annual
Repayments of Other Debt	`RepaymentsOfOtherDebt`	-	USD	Annual
Repayments of Other Debt	`RepaymentsOfOtherDebt`	$347.20M	USD	Annual
Proceeds from Issuance of Preferred Stock and Preference Stock	`ProceedsFromIssuanceOfPreferredStockAndPreferenceStock`	-	USD	Annual
Proceeds from Issuance of Preferred Stock and Preference Stock	`ProceedsFromIssuanceOfPreferredStockAndPreferenceStock`	$-393.90M	USD	Annual
Proceeds from Issuance of Preferred Stock and Preference Stock	`ProceedsFromIssuanceOfPreferredStockAndPreferenceStock`	-	USD	Annual

Stockholders Equity 44 line items

Line Item	Tag	Value	Unit	Period
Beginning Balance	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$10.14B	USD	Point-in-time
Beginning Balance	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$7.90B	USD	Point-in-time
Beginning Balance	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$7.27B	USD	Point-in-time
Beginning Balance	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$5.84B	USD	Point-in-time
Net Income	`ProfitLoss`	$588.80M	USD	Annual
Net Income	`ProfitLoss`	$791.80M	USD	Annual
Net Income	`ProfitLoss`	$674.40M	USD	Annual
Other Comprehensive Income (Loss), Net of Tax	`OtherComprehensiveIncomeLossNetOfTax`	$89.70M	USD	Annual
Other Comprehensive Income (Loss), Net of Tax	`OtherComprehensiveIncomeLossNetOfTax`	$3.50M	USD	Annual
Other Comprehensive Income (Loss), Net of Tax	`OtherComprehensiveIncomeLossNetOfTax`	$29.90M	USD	Annual
Common stock	`DividendsCommonStockCash`	$345.50M	USD	Annual
Common stock	`DividendsCommonStockCash`	$381.70M	USD	Annual
Common stock	`DividendsCommonStockCash`	$414.10M	USD	Annual
Preferred stock	`DividendsPreferredStockCash`	$55.10M	USD	Annual
Preferred stock	`DividendsPreferredStockCash`	$55.10M	USD	Annual
Preferred stock	`DividendsPreferredStockCash`	$43.80M	USD	Annual
Proceeds from (Payments to) Noncontrolling Interests	`ProceedsFromPaymentsToMinorityShareholders`	$2.17B	USD	Annual
Treasury Stock, Value, Acquired, Cost Method	`TreasuryStockValueAcquiredCostMethod`	$236.70M	USD	Annual
Contribution from noncontrolling interest	`NoncontrollingInterestIncreaseFromSubsidiaryEquityIssuance`	$600.00K	USD	Annual
Contribution from noncontrolling interest	`NoncontrollingInterestIncreaseFromSubsidiaryEquityIssuance`	$19.10M	USD	Annual
Contribution from noncontrolling interest	`NoncontrollingInterestIncreaseFromSubsidiaryEquityIssuance`	$233.20M	USD	Annual
Distributions to Noncontrolling Interest Holders	`MinorityInterestDecreaseFromDistributionsToNoncontrollingInterestHolders`	$6.00M	USD	Annual
Distributions to Noncontrolling Interest Holders	`MinorityInterestDecreaseFromDistributionsToNoncontrollingInterestHolders`	$14.10M	USD	Annual
Equity Units	`StockIssuedDuringThePeriodEquityUnitsValue`	-	USD	Annual
Employee stock purchase plan	`StockIssuedDuringPeriodValueEmployeeStockPurchasePlan`	$5.00M	USD	Annual
Employee stock purchase plan	`StockIssuedDuringPeriodValueEmployeeStockPurchasePlan`	$5.90M	USD	Annual
Employee stock purchase plan	`StockIssuedDuringPeriodValueEmployeeStockPurchasePlan`	$5.20M	USD	Annual
Long-term incentive plan	`StockIssuedDuringPeriodValueShareBasedCompensation`	$11.80M	USD	Annual
Long-term incentive plan	`StockIssuedDuringPeriodValueShareBasedCompensation`	$14.30M	USD	Annual
Long-term incentive plan	`StockIssuedDuringPeriodValueShareBasedCompensation`	$12.60M	USD	Annual
401(k) and profit sharing	`StockIssuedDuringPeriodValueEmployeeBenefitPlan`	$9.70M	USD	Annual
401(k) and profit sharing	`StockIssuedDuringPeriodValueEmployeeBenefitPlan`	$9.50M	USD	Annual
401(k) and profit sharing	`StockIssuedDuringPeriodValueEmployeeBenefitPlan`	$9.90M	USD	Annual
ATM Program	`StockIssuedDuringPeriodValueOther`	$141.90M	USD	Annual
ATM Program	`StockIssuedDuringPeriodValueOther`	$288.10M	USD	Annual
Ending Balance	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$10.14B	USD	Point-in-time
Ending Balance	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$7.90B	USD	Point-in-time
Ending Balance	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$7.27B	USD	Point-in-time
Ending Balance	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$5.84B	USD	Point-in-time
Common stock	`StockIssuedDuringPeriodValueNewIssues`	$666.50M	USD	Annual
Preferred stock redemption	`PreferredStockRedemption`	$393.90M	USD	Annual
Preferred Stock Redemption Premium	`PreferredStockRedemptionPremium`	-	USD	Annual
Preferred Stock Redemption Premium	`PreferredStockRedemptionPremium`	-	USD	Annual
Preferred Stock Redemption Premium	`PreferredStockRedemptionPremium`	$9.80M	USD	Annual

Comprehensive Income 27 line items

Line Item	Tag	Value	Unit	Period
Other Comprehensive Income (Loss), Securities, Available-for-Sale, Unrealized Holding Gain (Loss) Arising During Period, Tax	`OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodTax`	$3.50M	USD	Annual
Net Income	`ProfitLoss`	$588.80M	USD	Annual
Net Income	`ProfitLoss`	$791.80M	USD	Annual
Net Income	`ProfitLoss`	$674.40M	USD	Annual
Other Comprehensive Income (Loss), Securities, Available-for-Sale, Unrealized Holding Gain (Loss) Arising During Period, Tax	`OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodTax`	$1.00M	USD	Annual
Other Comprehensive Income (Loss), Securities, Available-for-Sale, Unrealized Holding Gain (Loss) Arising During Period, Tax	`OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodTax`	$-1.00M	USD	Annual
Other Comprehensive Income (Loss), Cash Flow Hedge, Gain (Loss), after Reclassification, Tax, Parent	`OtherComprehensiveIncomeLossCashFlowHedgeGainLossAfterReclassificationTaxParent`	$-8.40M	USD	Annual
Other Comprehensive Income (Loss), Cash Flow Hedge, Gain (Loss), after Reclassification, Tax, Parent	`OtherComprehensiveIncomeLossCashFlowHedgeGainLossAfterReclassificationTaxParent`	$-36.40M	USD	Annual
Other Comprehensive Income (Loss), Cash Flow Hedge, Gain (Loss), after Reclassification, Tax, Parent	`OtherComprehensiveIncomeLossCashFlowHedgeGainLossAfterReclassificationTaxParent`	$100.00K	USD	Annual
Net unrealized gain (loss) on available-for-sale securities	`OtherComprehensiveIncomeLossAvailableForSaleSecuritiesAdjustmentNetOfTax`	$-3.90M	USD	Annual
Other Comprehensive (Income) Loss, Defined Benefit Plan, after Reclassification Adjustment, Tax	`OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansTax`	$100.00K	USD	Annual
Net unrealized gain (loss) on available-for-sale securities	`OtherComprehensiveIncomeLossAvailableForSaleSecuritiesAdjustmentNetOfTax`	$-13.30M	USD	Annual
Other Comprehensive (Income) Loss, Defined Benefit Plan, after Reclassification Adjustment, Tax	`OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansTax`	$2.30M	USD	Annual
Net unrealized gain (loss) on available-for-sale securities	`OtherComprehensiveIncomeLossAvailableForSaleSecuritiesAdjustmentNetOfTax`	$3.90M	USD	Annual
Other Comprehensive (Income) Loss, Defined Benefit Plan, after Reclassification Adjustment, Tax	`OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansTax`	$-3.80M	USD	Annual
Net unrealized gain (loss) on cash flow hedges	`OtherComprehensiveIncomeLossCashFlowHedgeGainLossAfterReclassificationAndTaxParent`	$109.90M	USD	Annual
Net unrealized gain (loss) on cash flow hedges	`OtherComprehensiveIncomeLossCashFlowHedgeGainLossAfterReclassificationAndTaxParent`	$-200.00K	USD	Annual
Net unrealized gain (loss) on cash flow hedges	`OtherComprehensiveIncomeLossCashFlowHedgeGainLossAfterReclassificationAndTaxParent`	$25.40M	USD	Annual
Unrecognized pension and OPEB benefit (costs)	`OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentNetOfTax`	$6.90M	USD	Annual
Unrecognized pension and OPEB benefit (costs)	`OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentNetOfTax`	$200.00K	USD	Annual
Unrecognized pension and OPEB benefit (costs)	`OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentNetOfTax`	$-8.40M	USD	Annual
Total other comprehensive income	`OtherComprehensiveIncomeLossNetOfTax`	$89.70M	USD	Annual
Total other comprehensive income	`OtherComprehensiveIncomeLossNetOfTax`	$3.50M	USD	Annual
Total other comprehensive income	`OtherComprehensiveIncomeLossNetOfTax`	$29.90M	USD	Annual
Total Comprehensive Income	`ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest`	$677.90M	USD	Annual
Total Comprehensive Income	`ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest`	$618.70M	USD	Annual
Total Comprehensive Income	`ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest`	$881.50M	USD	Annual

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