10-K Filing

AMERICAN WATER WORKS COMPANY, INC. CIK: 1410636 FY 2014

Filing Information

Form Type	10-K
Accession Number	`0001564590-15-000905`
Period End Date	20141231
Filing Date	20150225
Fiscal Year	2014
Fiscal Period	FY
XBRL Instance	awk-20141231.xml

Filing Contents

This filing contains the following financial statements:

Balance Sheet 113 Income Statement 159 Cash Flow Statement 152 Stockholders Equity 41 Comprehensive Income 10

Balance Sheet 113 line items

Line Item	Tag	Value	Unit	Period
Utility plant, accumulated depreciation	`PublicUtilitiesPropertyPlantAndEquipmentAccumulatedDepreciation`	$3.99B	USD	Point-in-time
Utility plant, accumulated depreciation	`PublicUtilitiesPropertyPlantAndEquipmentAccumulatedDepreciation`	$3.89B	USD	Point-in-time
Nonutility property, accumulated depreciation	`AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment`	$215.08M	USD	Point-in-time
Nonutility property, accumulated depreciation	`AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment`	$248.34M	USD	Point-in-time
Utility plantat original cost, net of accumulated depreciation of $3,991,680 in 2014 and $3,894,326 in 2013	`PublicUtilitiesPropertyPlantAndEquipmentNet`	$12.24B	USD	Point-in-time
Utility plantat original cost, net of accumulated depreciation of $3,991,680 in 2014 and $3,894,326 in 2013	`PublicUtilitiesPropertyPlantAndEquipmentNet`	$12.90B	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
Nonutility property, net of accumulated depreciation of $248,341 in 2014 and $215,083 in 2013	`NonUtilityPropertyNet`	$129.59M	USD	Point-in-time
Nonutility property, net of accumulated depreciation of $248,341 in 2014 and $215,083 in 2013	`NonUtilityPropertyNet`	$144.00M	USD	Point-in-time
Common stock, shares authorized	`CommonStockSharesAuthorized`	500.00M	shares	Point-in-time
Common stock, shares authorized	`CommonStockSharesAuthorized`	500.00M	shares	Point-in-time
Total property, plant and equipment	`PropertyPlantAndEquipmentNet`	$12.39B	USD	Point-in-time
Total property, plant and equipment	`PropertyPlantAndEquipmentNet`	$13.03B	USD	Point-in-time
Common stock, shares outstanding	`CommonStockSharesOutstanding`	178.38M	shares	Point-in-time
Common stock, shares outstanding	`CommonStockSharesOutstanding`	179.46M	shares	Point-in-time
Cash and cash equivalents	`CashAndCashEquivalentsAtCarryingValue`	$23.08M	USD	Point-in-time
Cash and cash equivalents	`CashAndCashEquivalentsAtCarryingValue`	$26.96M	USD	Point-in-time
Cash and cash equivalents	`CashAndCashEquivalentsAtCarryingValue`	$24.43M	USD	Point-in-time
Cash and cash equivalents	`CashAndCashEquivalentsAtCarryingValue`	$14.21M	USD	Point-in-time
Restricted funds	`RestrictedCashAndCashEquivalentsAtCarryingValue`	$13.86M	USD	Point-in-time
Restricted funds	`RestrictedCashAndCashEquivalentsAtCarryingValue`	$28.50M	USD	Point-in-time
Accounts receivable	`AccountsReceivableGrossCurrent`	$241.93M	USD	Point-in-time
Accounts receivable	`AccountsReceivableGrossCurrent`	$267.05M	USD	Point-in-time
Allowance for uncollectible accounts	`ValuationAllowancesAndReservesBalance`	$26.74M	USD	Point-in-time
Allowance for uncollectible accounts	`ValuationAllowancesAndReservesBalance`	$18.90M	USD	Point-in-time
Allowance for uncollectible accounts	`ValuationAllowancesAndReservesBalance`	$33.82M	USD	Point-in-time
Allowance for uncollectible accounts	`ValuationAllowancesAndReservesBalance`	$34.94M	USD	Point-in-time
Unbilled revenues	`UnbilledReceivablesCurrent`	$220.54M	USD	Point-in-time
Unbilled revenues	`UnbilledReceivablesCurrent`	$215.72M	USD	Point-in-time
Income taxes receivable	`IncomeTaxesReceivable`	$2.58M	USD	Point-in-time
Income taxes receivable	`IncomeTaxesReceivable`	$5.78M	USD	Point-in-time
Materials and supplies	`InventoryRawMaterialsAndSupplies`	$32.97M	USD	Point-in-time
Materials and supplies	`InventoryRawMaterialsAndSupplies`	$37.19M	USD	Point-in-time
Deferred income taxes	`DeferredTaxAssetsLiabilitiesNetCurrent`	$86.60M	USD	Point-in-time
Deferred income taxes	`DeferredTaxAssetsLiabilitiesNetCurrent`	$17.72M	USD	Point-in-time
Assets of discontinued operations	`AssetsOfDisposalGroupIncludingDiscontinuedOperationCurrent`	$7.76M	USD	Point-in-time
Other	`OtherAssetsCurrent`	$28.28M	USD	Point-in-time
Other	`OtherAssetsCurrent`	$45.41M	USD	Point-in-time
Total current assets	`AssetsCurrent`	$661.37M	USD	Point-in-time
Total current assets	`AssetsCurrent`	$571.81M	USD	Point-in-time
Regulatory assets	`RegulatoryAssetsNoncurrent`	$858.47M	USD	Point-in-time
Regulatory assets	`RegulatoryAssetsNoncurrent`	$1.15B	USD	Point-in-time
Restricted funds	`RestrictedCashAndCashEquivalentsNoncurrent`	$8.96M	USD	Point-in-time
Restricted funds	`RestrictedCashAndCashEquivalentsNoncurrent`	$754.00K	USD	Point-in-time
Goodwill	`Goodwill`	$1.21B	USD	Point-in-time
Goodwill	`Goodwill`	$1.21B	USD	Point-in-time
Goodwill	`Goodwill`	$1.21B	USD	Point-in-time
Other	`OtherAssetsNoncurrent`	$61.00M	USD	Point-in-time
Other	`OtherAssetsNoncurrent`	$69.86M	USD	Point-in-time
Total regulatory and other long-term assets	`RegulatedEntityOtherAssetsNoncurrent`	$2.13B	USD	Point-in-time
Total regulatory and other long-term assets	`RegulatedEntityOtherAssetsNoncurrent`	$2.44B	USD	Point-in-time
TOTAL ASSETS	`Assets`	$14.72B	USD	Point-in-time
TOTAL ASSETS	`Assets`	$16.13B	USD	Point-in-time
TOTAL ASSETS	`Assets`	$15.09B	USD	Point-in-time
Common stock ($0.01 par value, 500,000 shares authorized, 179,462 shares outstanding in 2014 and 178,379 in 2013)	`CommonStockValue`	$1.79M	USD	Point-in-time
Common stock ($0.01 par value, 500,000 shares authorized, 179,462 shares outstanding in 2014 and 178,379 in 2013)	`CommonStockValue`	$1.78M	USD	Point-in-time
Paid-in-capital	`AdditionalPaidInCapitalCommonStock`	$6.30B	USD	Point-in-time
Paid-in-capital	`AdditionalPaidInCapitalCommonStock`	$6.26B	USD	Point-in-time
Accumulated deficit	`RetainedEarningsAccumulatedDeficit`	$-1.30B	USD	Point-in-time
Accumulated deficit	`RetainedEarningsAccumulatedDeficit`	$-1.50B	USD	Point-in-time
Accumulated other comprehensive loss	`AccumulatedOtherComprehensiveIncomeLossNetOfTax`	$-116.19M	USD	Point-in-time
Accumulated other comprehensive loss	`AccumulatedOtherComprehensiveIncomeLossNetOfTax`	$-34.63M	USD	Point-in-time
Accumulated other comprehensive loss	`AccumulatedOtherComprehensiveIncomeLossNetOfTax`	$-81.87M	USD	Point-in-time
Treasury stock	`TreasuryStockValue`	$10.52M	USD	Point-in-time
Treasury stock	`TreasuryStockValue`	$5.04M	USD	Point-in-time
Total common stockholders' equity	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$4.73B	USD	Point-in-time
Total common stockholders' equity	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$4.24B	USD	Point-in-time
Total common stockholders' equity	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$4.92B	USD	Point-in-time
Total common stockholders' equity	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$4.44B	USD	Point-in-time
Long-term debt	`LongTermDebtAndCapitalLeaseObligations`	$5.43B	USD	Point-in-time
Long-term debt	`LongTermDebtAndCapitalLeaseObligations`	$5.21B	USD	Point-in-time
Redeemable preferred stock at redemption value	`RedeemablePreferredStockAtRedemptionValue`	$17.18M	USD	Point-in-time
Redeemable preferred stock at redemption value	`RedeemablePreferredStockAtRedemptionValue`	$15.50M	USD	Point-in-time
Total capitalization	`CapitalizationLongtermDebtAndEquity`	$9.96B	USD	Point-in-time
Total capitalization	`CapitalizationLongtermDebtAndEquity`	$10.36B	USD	Point-in-time
Short-term debt	`ShortTermBorrowings`	$449.96M	USD	Point-in-time
Short-term debt	`ShortTermBorrowings`	$630.31M	USD	Point-in-time
Current portion of long-term debt	`LongTermDebtAndCapitalLeaseObligationsCurrent`	$61.13M	USD	Point-in-time
Current portion of long-term debt	`LongTermDebtAndCapitalLeaseObligationsCurrent`	$14.17M	USD	Point-in-time
Accounts payable	`AccountsPayableCurrent`	$264.12M	USD	Point-in-time
Accounts payable	`AccountsPayableCurrent`	$285.80M	USD	Point-in-time
Taxes accrued	`TaxesPayableCurrent`	$32.17M	USD	Point-in-time
Taxes accrued	`TaxesPayableCurrent`	$24.50M	USD	Point-in-time
Interest accrued	`InterestPayableCurrent`	$52.09M	USD	Point-in-time
Interest accrued	`InterestPayableCurrent`	$56.52M	USD	Point-in-time
Liabilities of discontinued operations	`LiabilitiesOfDisposalGroupIncludingDiscontinuedOperationCurrent`	$3.82M	USD	Point-in-time
Other	`OtherLiabilitiesCurrent`	$238.86M	USD	Point-in-time
Other	`OtherLiabilitiesCurrent`	$363.08M	USD	Point-in-time
Total current liabilities	`LiabilitiesCurrent`	$1.24B	USD	Point-in-time
Total current liabilities	`LiabilitiesCurrent`	$1.24B	USD	Point-in-time
Advances for construction	`CustomerAdvancesForConstruction`	$367.69M	USD	Point-in-time
Advances for construction	`CustomerAdvancesForConstruction`	$375.73M	USD	Point-in-time
Deferred income taxes	`DeferredTaxLiabilitiesNoncurrent`	$2.12B	USD	Point-in-time
Deferred income taxes	`DeferredTaxLiabilitiesNoncurrent`	$1.84B	USD	Point-in-time
Deferred investment tax credits	`AccumulatedDeferredInvestmentTaxCredit`	$25.01M	USD	Point-in-time
Deferred investment tax credits	`AccumulatedDeferredInvestmentTaxCredit`	$26.41M	USD	Point-in-time
Regulatory liabilities	`RegulatoryLiabilityNoncurrent`	$373.32M	USD	Point-in-time
Regulatory liabilities	`RegulatoryLiabilityNoncurrent`	$391.78M	USD	Point-in-time
Accrued pension	`DefinedBenefitPensionPlanLiabilitiesNoncurrent`	$316.37M	USD	Point-in-time
Accrued pension	`DefinedBenefitPensionPlanLiabilitiesNoncurrent`	$108.54M	USD	Point-in-time
Accrued postretirement benefit	`OtherPostretirementDefinedBenefitPlanLiabilitiesNoncurrent`	$88.42M	USD	Point-in-time
Accrued postretirement benefit	`OtherPostretirementDefinedBenefitPlanLiabilitiesNoncurrent`	$192.50M	USD	Point-in-time
Other	`OtherLiabilitiesNoncurrent`	$37.15M	USD	Point-in-time
Other	`OtherLiabilitiesNoncurrent`	$38.93M	USD	Point-in-time
Total regulatory and other long-term liabilities	`DeferredCreditsAndRegulatoryLiabilities`	$2.85B	USD	Point-in-time
Total regulatory and other long-term liabilities	`DeferredCreditsAndRegulatoryLiabilities`	$3.45B	USD	Point-in-time
Contributions in aid of construction	`ContributionsInAidOfConstruction`	$1.04B	USD	Point-in-time
Contributions in aid of construction	`ContributionsInAidOfConstruction`	$1.07B	USD	Point-in-time
Commitments and contingencies (See Note 14)	`CommitmentsAndContingencies`	-	USD	Point-in-time
Commitments and contingencies (See Note 14)	`CommitmentsAndContingencies`	-	USD	Point-in-time
TOTAL CAPITALIZATION AND LIABILITIES	`LiabilitiesAndStockholdersEquity`	$16.13B	USD	Point-in-time
TOTAL CAPITALIZATION AND LIABILITIES	`LiabilitiesAndStockholdersEquity`	$15.09B	USD	Point-in-time

Income Statement 159 line items

Line Item	Tag	Value	Unit	Period
Operating revenues	`Revenues`	$731.38M	USD	1 Quarter
Operating revenues	`Revenues`	$706.24M	USD	1 Quarter
Operating revenues	`Revenues`	$822.19M	USD	1 Quarter
Operating revenues	`Revenues`	$718.57M	USD	1 Quarter
Operating revenues	`Revenues`	$2.88B	USD	Annual
Operating revenues	`Revenues`	$679.00M	USD	1 Quarter
Operating revenues	`Revenues`	$846.17M	USD	1 Quarter
Operating revenues	`Revenues`	$754.78M	USD	1 Quarter
Operating revenues	`Revenues`	$631.94M	USD	1 Quarter
Operating revenues	`Revenues`	$2.85B	USD	Annual
Operating revenues	`Revenues`	$3.01B	USD	Annual
Operation and maintenance	`UtilitiesOperatingExpenseMaintenanceAndOperations`	$1.33B	USD	Annual
Operation and maintenance	`UtilitiesOperatingExpenseMaintenanceAndOperations`	$1.35B	USD	Annual
Operation and maintenance	`UtilitiesOperatingExpenseMaintenanceAndOperations`	$1.29B	USD	Annual
Depreciation and amortization	`DepreciationAndAmortizationContinuingOperations`	$406.72M	USD	Annual
Depreciation and amortization	`DepreciationAndAmortizationContinuingOperations`	$380.40M	USD	Annual
Depreciation and amortization	`DepreciationAndAmortizationContinuingOperations`	$424.08M	USD	Annual
General taxes	`TaxesExcludingIncomeAndExciseTaxes`	$220.76M	USD	Annual
General taxes	`TaxesExcludingIncomeAndExciseTaxes`	$234.20M	USD	Annual
General taxes	`TaxesExcludingIncomeAndExciseTaxes`	$236.73M	USD	Annual
(Gain) loss on asset dispositions and purchases	`GainLossOnSaleOfAssetsContinuingOperations`	$-624.00K	USD	Annual
(Gain) loss on asset dispositions and purchases	`GainLossOnSaleOfAssetsContinuingOperations`	$838.00K	USD	Annual
(Gain) loss on asset dispositions and purchases	`GainLossOnSaleOfAssetsContinuingOperations`	$1.93M	USD	Annual
Total operating expenses, net	`OperatingExpenses`	$1.93B	USD	Annual
Total operating expenses, net	`OperatingExpenses`	$2.01B	USD	Annual
Total operating expenses, net	`OperatingExpenses`	$1.93B	USD	Annual
Operating income	`OperatingIncomeLoss`	$337.29M	USD	1 Quarter
Operating income	`OperatingIncomeLoss`	$223.06M	USD	1 Quarter
Operating income	`OperatingIncomeLoss`	$242.03M	USD	1 Quarter
Operating income	`OperatingIncomeLoss`	$165.32M	USD	1 Quarter
Operating income	`OperatingIncomeLoss`	$254.79M	USD	1 Quarter
Operating income	`OperatingIncomeLoss`	$924.10M	USD	Annual
Operating income	`OperatingIncomeLoss`	$187.44M	USD	1 Quarter
Operating income	`OperatingIncomeLoss`	$217.79M	USD	1 Quarter
Operating income	`OperatingIncomeLoss`	$323.17M	USD	1 Quarter
Operating income	`OperatingIncomeLoss`	$1.00B	USD	Annual
Operating income	`OperatingIncomeLoss`	$948.32M	USD	Annual
Interest, net	`InterestExpense`	$297.82M	USD	Annual
Interest, net	`InterestExpense`	$308.16M	USD	Annual
Interest, net	`InterestExpense`	$310.79M	USD	Annual
Loss on extinguishment of debt	`GainsLossesOnExtinguishmentOfDebt`	$-40.58M	USD	Annual
Amortization of debt expense	`AmortizationOfFinancingCosts`	$5.36M	USD	Annual
Amortization of debt expense	`AmortizationOfFinancingCosts`	$6.60M	USD	Annual
Amortization of debt expense	`AmortizationOfFinancingCosts`	$7.03M	USD	Annual
Other, net	`OtherNonoperatingIncomeExpense`	$-3.20M	USD	Annual
Other, net	`OtherNonoperatingIncomeExpense`	$-926.00K	USD	Annual
Other, net	`OtherNonoperatingIncomeExpense`	$-4.04M	USD	Annual
Total other income (expenses)	`NonoperatingIncomeExpense`	$-292.76M	USD	Annual
Total other income (expenses)	`NonoperatingIncomeExpense`	$-293.71M	USD	Annual
Total other income (expenses)	`NonoperatingIncomeExpense`	$-340.38M	USD	Annual
Income from continuing operations before income taxes	`IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments`	$709.81M	USD	Annual
Income from continuing operations before income taxes	`IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments`	$630.39M	USD	Annual
Income from continuing operations before income taxes	`IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments`	$607.94M	USD	Annual
Provision for income taxes	`IncomeTaxExpenseBenefit`	$279.97M	USD	Annual
Provision for income taxes	`IncomeTaxExpenseBenefit`	$256.79M	USD	Annual
Provision for income taxes	`IncomeTaxExpenseBenefit`	$237.09M	USD	Annual
Income from continuing operations	`IncomeLossFromContinuingOperations`	$101.37M	USD	1 Quarter
Income from continuing operations	`IncomeLossFromContinuingOperations`	$373.60M	USD	Annual
Income from continuing operations	`IncomeLossFromContinuingOperations`	$61.12M	USD	1 Quarter
Income from continuing operations	`IncomeLossFromContinuingOperations`	$429.84M	USD	Annual
Income from continuing operations	`IncomeLossFromContinuingOperations`	$110.17M	USD	1 Quarter
Income from continuing operations	`IncomeLossFromContinuingOperations`	$370.84M	USD	Annual
Income from continuing operations	`IncomeLossFromContinuingOperations`	$58.45M	USD	1 Quarter
Income from continuing operations	`IncomeLossFromContinuingOperations`	$93.95M	USD	1 Quarter
Income from continuing operations	`IncomeLossFromContinuingOperations`	$149.91M	USD	1 Quarter
Income from continuing operations	`IncomeLossFromContinuingOperations`	$156.61M	USD	1 Quarter
Income from continuing operations	`IncomeLossFromContinuingOperations`	$69.11M	USD	1 Quarter
Loss from discontinued operations, net of tax	`IncomeLossFromDiscontinuedOperationsNetOfTax`	$-6.73M	USD	Annual
Loss from discontinued operations, net of tax	`IncomeLossFromDiscontinuedOperationsNetOfTax`	$-1.58M	USD	Annual
Loss from discontinued operations, net of tax	`IncomeLossFromDiscontinuedOperationsNetOfTax`	$-15.53M	USD	Annual
Net income	`NetIncomeLoss`	$101.26M	USD	1 Quarter
Net income	`NetIncomeLoss`	$369.26M	USD	Annual
Net income	`NetIncomeLoss`	$150.66M	USD	1 Quarter
Net income	`NetIncomeLoss`	$358.07M	USD	Annual
Net income	`NetIncomeLoss`	$57.64M	USD	1 Quarter
Net income	`NetIncomeLoss`	$109.30M	USD	1 Quarter
Net income	`NetIncomeLoss`	$93.50M	USD	1 Quarter
Net income	`NetIncomeLoss`	$68.12M	USD	1 Quarter
Net income	`NetIncomeLoss`	$152.19M	USD	1 Quarter
Net income	`NetIncomeLoss`	$423.11M	USD	Annual
Net income	`NetIncomeLoss`	$59.69M	USD	1 Quarter
Change in employee benefit plan funded status, net of tax of $(29,487), $46,974 and $(16,894), respectively	`OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlanChangeInFundedStatus`	$-73.47M	USD	Annual
Change in employee benefit plan funded status, net of tax of $(29,487), $46,974 and $(16,894), respectively	`OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlanChangeInFundedStatus`	$46.12M	USD	Annual
Change in employee benefit plan funded status, net of tax of $(29,487), $46,974 and $(16,894), respectively	`OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlanChangeInFundedStatus`	$26.43M	USD	Annual
Prior service cost, net of tax of $106, $111 and $113, respectively	`OtherComprehensiveIncomeLossAmortizationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansForNetPriorServiceCostCreditNetOfTax`	$176.00K	USD	Annual
Prior service cost, net of tax of $106, $111 and $113, respectively	`OtherComprehensiveIncomeLossAmortizationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansForNetPriorServiceCostCreditNetOfTax`	$166.00K	USD	Annual
Prior service cost, net of tax of $106, $111 and $113, respectively	`OtherComprehensiveIncomeLossAmortizationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansForNetPriorServiceCostCreditNetOfTax`	$174.00K	USD	Annual
Actuarial (gain) loss, net of tax of $(19), $5,697 and $4,668, respectively	`OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansForNetGainLossNetOfTax`	$-8.91M	USD	Annual
Actuarial (gain) loss, net of tax of $(19), $5,697 and $4,668, respectively	`OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansForNetGainLossNetOfTax`	$31.00K	USD	Annual
Actuarial (gain) loss, net of tax of $(19), $5,697 and $4,668, respectively	`OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansForNetGainLossNetOfTax`	$-7.30M	USD	Annual
Foreign currency translation adjustment	`OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax`	$-1.00M	USD	Annual
Foreign currency translation adjustment	`OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax`	$-458.00K	USD	Annual
Foreign currency translation adjustment	`OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax`	$434.00K	USD	Annual
Unrealized loss on cash flow hedge, net of tax of $(428)	`OtherComprehensiveIncomeUnrealizedGainLossOnDerivativesArisingDuringPeriodNetOfTax`	$-791.00K	USD	Annual
Other comprehensive income (loss)	`OtherComprehensiveIncomeLossNetOfTax`	$81.56M	USD	Annual
Other comprehensive income (loss)	`OtherComprehensiveIncomeLossNetOfTax`	$-47.23M	USD	Annual
Other comprehensive income (loss)	`OtherComprehensiveIncomeLossNetOfTax`	$-18.51M	USD	Annual
Comprehensive income	`ComprehensiveIncomeNetOfTax`	$339.56M	USD	Annual
Comprehensive income	`ComprehensiveIncomeNetOfTax`	$450.82M	USD	Annual
Comprehensive income	`ComprehensiveIncomeNetOfTax`	$375.88M	USD	Annual
Income from continuing operations	`IncomeLossFromContinuingOperationsPerBasicShare`	$0.39	USD	1 Quarter
Income from continuing operations	`IncomeLossFromContinuingOperationsPerBasicShare`	$0.52	USD	1 Quarter
Income from continuing operations	`IncomeLossFromContinuingOperationsPerBasicShare`	$0.34	USD	1 Quarter
Income from continuing operations	`IncomeLossFromContinuingOperationsPerBasicShare`	$0.84	USD	1 Quarter
Income from continuing operations	`IncomeLossFromContinuingOperationsPerBasicShare`	$0.87	USD	1 Quarter
Income from continuing operations	`IncomeLossFromContinuingOperationsPerBasicShare`	$2.40	USD	Annual
Income from continuing operations	`IncomeLossFromContinuingOperationsPerBasicShare`	$0.57	USD	1 Quarter
Income from continuing operations	`IncomeLossFromContinuingOperationsPerBasicShare`	$0.33	USD	1 Quarter
Income from continuing operations	`IncomeLossFromContinuingOperationsPerBasicShare`	$2.12	USD	Annual
Income from continuing operations	`IncomeLossFromContinuingOperationsPerBasicShare`	$0.62	USD	1 Quarter
Income from continuing operations	`IncomeLossFromContinuingOperationsPerBasicShare`	$2.08	USD	Annual
Loss from discontinued operations, net of tax	`IncomeLossFromDiscontinuedOperationsNetOfTaxPerBasicShare`	$-0.04	USD	Annual
Loss from discontinued operations, net of tax	`IncomeLossFromDiscontinuedOperationsNetOfTaxPerBasicShare`	$-0.09	USD	Annual
Loss from discontinued operations, net of tax	`IncomeLossFromDiscontinuedOperationsNetOfTaxPerBasicShare`	$-0.01	USD	Annual
Net income	`EarningsPerShareBasic`	$0.38	USD	1 Quarter
Net income	`EarningsPerShareBasic`	$0.57	USD	1 Quarter
Net income	`EarningsPerShareBasic`	$0.61	USD	1 Quarter
Net income	`EarningsPerShareBasic`	$2.03	USD	Annual
Net income	`EarningsPerShareBasic`	$0.85	USD	1 Quarter
Net income	`EarningsPerShareBasic`	$0.33	USD	1 Quarter
Net income	`EarningsPerShareBasic`	$0.85	USD	1 Quarter
Net income	`EarningsPerShareBasic`	$2.36	USD	Annual
Net income	`EarningsPerShareBasic`	$2.08	USD	Annual
Net income	`EarningsPerShareBasic`	$0.32	USD	1 Quarter
Net income	`EarningsPerShareBasic`	$0.52	USD	1 Quarter
Income from continuing operations	`IncomeLossFromContinuingOperationsPerDilutedShare`	$2.39	USD	Annual
Income from continuing operations	`IncomeLossFromContinuingOperationsPerDilutedShare`	$0.52	USD	1 Quarter
Income from continuing operations	`IncomeLossFromContinuingOperationsPerDilutedShare`	$0.33	USD	1 Quarter
Income from continuing operations	`IncomeLossFromContinuingOperationsPerDilutedShare`	$0.61	USD	1 Quarter
Income from continuing operations	`IncomeLossFromContinuingOperationsPerDilutedShare`	$2.07	USD	Annual
Income from continuing operations	`IncomeLossFromContinuingOperationsPerDilutedShare`	$0.34	USD	1 Quarter
Income from continuing operations	`IncomeLossFromContinuingOperationsPerDilutedShare`	$0.87	USD	1 Quarter
Income from continuing operations	`IncomeLossFromContinuingOperationsPerDilutedShare`	$0.39	USD	1 Quarter
Income from continuing operations	`IncomeLossFromContinuingOperationsPerDilutedShare`	$0.84	USD	1 Quarter
Income from continuing operations	`IncomeLossFromContinuingOperationsPerDilutedShare`	$2.10	USD	Annual
Income from continuing operations	`IncomeLossFromContinuingOperationsPerDilutedShare`	$0.57	USD	1 Quarter
Loss from discontinued operations, net of tax	`IncomeLossFromDiscontinuedOperationsNetOfTaxPerDilutedShare`	$-0.01	USD	Annual
Loss from discontinued operations, net of tax	`IncomeLossFromDiscontinuedOperationsNetOfTaxPerDilutedShare`	$-0.04	USD	Annual
Loss from discontinued operations, net of tax	`IncomeLossFromDiscontinuedOperationsNetOfTaxPerDilutedShare`	$-0.09	USD	Annual
Net income	`EarningsPerShareDiluted`	$0.61	USD	1 Quarter
Net income	`EarningsPerShareDiluted`	$0.33	USD	1 Quarter
Net income	`EarningsPerShareDiluted`	$0.52	USD	1 Quarter
Net income	`EarningsPerShareDiluted`	$2.06	USD	Annual
Net income	`EarningsPerShareDiluted`	$2.01	USD	Annual
Net income	`EarningsPerShareDiluted`	$0.38	USD	1 Quarter
Net income	`EarningsPerShareDiluted`	$2.35	USD	Annual
Net income	`EarningsPerShareDiluted`	$0.32	USD	1 Quarter
Net income	`EarningsPerShareDiluted`	$0.57	USD	1 Quarter
Net income	`EarningsPerShareDiluted`	$0.85	USD	1 Quarter
Net income	`EarningsPerShareDiluted`	$0.84	USD	1 Quarter
Basic	`WeightedAverageNumberOfSharesOutstandingBasic`	177.81M	shares	Annual
Basic	`WeightedAverageNumberOfSharesOutstandingBasic`	178.89M	shares	Annual
Basic	`WeightedAverageNumberOfSharesOutstandingBasic`	176.44M	shares	Annual
Diluted	`WeightedAverageNumberOfDilutedSharesOutstanding`	177.67M	shares	Annual
Diluted	`WeightedAverageNumberOfDilutedSharesOutstanding`	179.81M	shares	Annual
Diluted	`WeightedAverageNumberOfDilutedSharesOutstanding`	179.06M	shares	Annual
Dividends declared per common share	`CommonStockDividendsPerShareDeclared`	$1.24	USD	Annual
Dividends declared per common share	`CommonStockDividendsPerShareDeclared`	$0.98	USD	Annual
Dividends declared per common share	`CommonStockDividendsPerShareDeclared`	$1.12	USD	Annual

Cash Flow Statement 152 line items

Line Item	Tag	Value	Unit	Period
Advances and contributions for construction, refunds	`RepaymentsOfConstructionLoansPayable`	$17.85M	USD	Annual
Advances and contributions for construction, refunds	`RepaymentsOfConstructionLoansPayable`	$21.47M	USD	Annual
Advances and contributions for construction, refunds	`RepaymentsOfConstructionLoansPayable`	$23.35M	USD	Annual
Income taxes, refunds	`ProceedsFromIncomeTaxRefunds`	$3.67M	USD	Annual
Income taxes, refunds	`ProceedsFromIncomeTaxRefunds`	$766.00K	USD	Annual
Income taxes, refunds	`ProceedsFromIncomeTaxRefunds`	$127.00K	USD	Annual
Net income	`NetIncomeLoss`	$101.26M	USD	1 Quarter
Net income	`NetIncomeLoss`	$369.26M	USD	Annual
Net income	`NetIncomeLoss`	$150.66M	USD	1 Quarter
Net income	`NetIncomeLoss`	$358.07M	USD	Annual
Net income	`NetIncomeLoss`	$57.64M	USD	1 Quarter
Net income	`NetIncomeLoss`	$109.30M	USD	1 Quarter
Net income	`NetIncomeLoss`	$93.50M	USD	1 Quarter
Net income	`NetIncomeLoss`	$68.12M	USD	1 Quarter
Net income	`NetIncomeLoss`	$152.19M	USD	1 Quarter
Net income	`NetIncomeLoss`	$423.11M	USD	Annual
Net income	`NetIncomeLoss`	$59.69M	USD	1 Quarter
Depreciation and amortization	`DepreciationDepletionAndAmortization`	$407.72M	USD	Annual
Depreciation and amortization	`DepreciationDepletionAndAmortization`	$424.08M	USD	Annual
Depreciation and amortization	`DepreciationDepletionAndAmortization`	$381.50M	USD	Annual
Provision for deferred income taxes	`DeferredIncomeTaxExpenseBenefit`	$200.44M	USD	Annual
Provision for deferred income taxes	`DeferredIncomeTaxExpenseBenefit`	$250.50M	USD	Annual
Provision for deferred income taxes	`DeferredIncomeTaxExpenseBenefit`	$255.57M	USD	Annual
Amortization of deferred investment tax credits	`DeferredIncomeTaxesAndTaxCredits`	$-1.50M	USD	Annual
Amortization of deferred investment tax credits	`DeferredIncomeTaxesAndTaxCredits`	$-1.52M	USD	Annual
Amortization of deferred investment tax credits	`DeferredIncomeTaxesAndTaxCredits`	$-1.39M	USD	Annual
Provision for losses on accounts receivable	`ProvisionForDoubtfulAccounts`	$36.59M	USD	Annual
Provision for losses on accounts receivable	`ProvisionForDoubtfulAccounts`	$26.95M	USD	Annual
Provision for losses on accounts receivable	`ProvisionForDoubtfulAccounts`	$26.70M	USD	Annual
(Gain) loss on asset dispositions and purchases	`GainsLossesOnSalesOfAssets`	$839.00K	USD	Annual
(Gain) loss on asset dispositions and purchases	`GainsLossesOnSalesOfAssets`	$1.93M	USD	Annual
(Gain) loss on asset dispositions and purchases	`GainsLossesOnSalesOfAssets`	$-925.00K	USD	Annual
Pension and non-pension postretirement benefits	`PensionAndOtherPostretirementBenefitExpense`	$87.29M	USD	Annual
Pension and non-pension postretirement benefits	`PensionAndOtherPostretirementBenefitExpense`	$78.07M	USD	Annual
Pension and non-pension postretirement benefits	`PensionAndOtherPostretirementBenefitExpense`	$24.07M	USD	Annual
Stock-based compensation expense	`ShareBasedCompensation`	$11.47M	USD	Annual
Stock-based compensation expense	`ShareBasedCompensation`	$13.04M	USD	Annual
Stock-based compensation expense	`ShareBasedCompensation`	$12.47M	USD	Annual
Other, net	`OtherOperatingActivitiesCashFlowStatement`	$-17.73M	USD	Annual
Other, net	`OtherOperatingActivitiesCashFlowStatement`	$-1.33M	USD	Annual
Other, net	`OtherOperatingActivitiesCashFlowStatement`	$-727.00K	USD	Annual
Receivables and unbilled revenues	`IncreaseDecreaseInReceivables`	$34.53M	USD	Annual
Receivables and unbilled revenues	`IncreaseDecreaseInReceivables`	$61.94M	USD	Annual
Receivables and unbilled revenues	`IncreaseDecreaseInReceivables`	$79.31M	USD	Annual
Taxes receivable, including income taxes	`IncreaseDecreaseInIncomeTaxesReceivable`	$-3.82M	USD	Annual
Taxes receivable, including income taxes	`IncreaseDecreaseInIncomeTaxesReceivable`	$-3.20M	USD	Annual
Taxes receivable, including income taxes	`IncreaseDecreaseInIncomeTaxesReceivable`	$1.92M	USD	Annual
Other current assets	`IncreaseDecreaseInOtherCurrentAssets`	$-672.00K	USD	Annual
Other current assets	`IncreaseDecreaseInOtherCurrentAssets`	$5.22M	USD	Annual
Other current assets	`IncreaseDecreaseInOtherCurrentAssets`	$1.86M	USD	Annual
Pension and non-pension postretirement benefit contributions	`PensionAndOtherPostretirementBenefitContributions`	$97.50M	USD	Annual
Pension and non-pension postretirement benefit contributions	`PensionAndOtherPostretirementBenefitContributions`	$52.20M	USD	Annual
Pension and non-pension postretirement benefit contributions	`PensionAndOtherPostretirementBenefitContributions`	$129.41M	USD	Annual
Accounts payable	`IncreaseDecreaseInAccountsPayable`	$16.21M	USD	Annual
Accounts payable	`IncreaseDecreaseInAccountsPayable`	$-26.14M	USD	Annual
Accounts payable	`IncreaseDecreaseInAccountsPayable`	$-10.57M	USD	Annual
Taxes accrued, including income taxes	`IncreaseDecreaseInAccruedTaxesPayable`	$-30.18M	USD	Annual
Taxes accrued, including income taxes	`IncreaseDecreaseInAccruedTaxesPayable`	$-7.89M	USD	Annual
Taxes accrued, including income taxes	`IncreaseDecreaseInAccruedTaxesPayable`	$48.44M	USD	Annual
Interest accrued	`IncreaseDecreaseInInterestPayableNet`	$-1.72M	USD	Annual
Interest accrued	`IncreaseDecreaseInInterestPayableNet`	$4.44M	USD	Annual
Interest accrued	`IncreaseDecreaseInInterestPayableNet`	$-5.65M	USD	Annual
Change in book overdraft	`IncreaseDecreaseInOutstandingChecksOperatingActivities`	$34.17M	USD	Annual
Change in book overdraft	`IncreaseDecreaseInOutstandingChecksOperatingActivities`	$31.68M	USD	Annual
Change in book overdraft	`IncreaseDecreaseInOutstandingChecksOperatingActivities`	$-32.12M	USD	Annual
Other current liabilities	`IncreaseDecreaseInOtherCurrentLiabilities`	$62.02M	USD	Annual
Other current liabilities	`IncreaseDecreaseInOtherCurrentLiabilities`	$14.09M	USD	Annual
Other current liabilities	`IncreaseDecreaseInOtherCurrentLiabilities`	$-14.75M	USD	Annual
Net cash provided by operating activities	`NetCashProvidedByUsedInOperatingActivities`	$1.10B	USD	Annual
Net cash provided by operating activities	`NetCashProvidedByUsedInOperatingActivities`	$955.60M	USD	Annual
Net cash provided by operating activities	`NetCashProvidedByUsedInOperatingActivities`	$896.16M	USD	Annual
Capital expenditures	`PaymentsToAcquireCapitalExpenditureOfContinuedOperations`	$956.12M	USD	Annual
Capital expenditures	`PaymentsToAcquireCapitalExpenditureOfContinuedOperations`	$928.57M	USD	Annual
Capital expenditures	`PaymentsToAcquireCapitalExpenditureOfContinuedOperations`	$980.25M	USD	Annual
Acquisitions	`PaymentsToAcquireBusinessesNetOfCashAcquired`	$23.66M	USD	Annual
Acquisitions	`PaymentsToAcquireBusinessesNetOfCashAcquired`	$44.56M	USD	Annual
Acquisitions	`PaymentsToAcquireBusinessesNetOfCashAcquired`	$8.94M	USD	Annual
Proceeds from sale of assets and securities	`ProceedsFromSaleOfProductiveAssets`	$13.84M	USD	Annual
Proceeds from sale of assets and securities	`ProceedsFromSaleOfProductiveAssets`	$561.74M	USD	Annual
Proceeds from sale of assets and securities	`ProceedsFromSaleOfProductiveAssets`	$918.00K	USD	Annual
Removal costs from property, plant and equipment retirements, net	`PaymentsForProceedsFromRemovalCosts`	$57.10M	USD	Annual
Removal costs from property, plant and equipment retirements, net	`PaymentsForProceedsFromRemovalCosts`	$78.17M	USD	Annual
Removal costs from property, plant and equipment retirements, net	`PaymentsForProceedsFromRemovalCosts`	$64.73M	USD	Annual
Net funds released	`IncreaseDecreaseInRestrictedCash`	$-86.14M	USD	Annual
Net funds released	`IncreaseDecreaseInRestrictedCash`	$-15.40M	USD	Annual
Net funds released	`IncreaseDecreaseInRestrictedCash`	$-14.43M	USD	Annual
Net cash used in investing activities	`NetCashProvidedByUsedInInvestingActivities`	$-382.36M	USD	Annual
Net cash used in investing activities	`NetCashProvidedByUsedInInvestingActivities`	$-1.01B	USD	Annual
Net cash used in investing activities	`NetCashProvidedByUsedInInvestingActivities`	$-1.05B	USD	Annual
Proceeds from long-term debt	`ProceedsFromIssuanceOfLongTermDebt`	$315.43M	USD	Annual
Proceeds from long-term debt	`ProceedsFromIssuanceOfLongTermDebt`	$500.50M	USD	Annual
Proceeds from long-term debt	`ProceedsFromIssuanceOfLongTermDebt`	$404.16M	USD	Annual
Repayment of long-term debt	`RepaymentsOfLongTermDebt`	$493.10M	USD	Annual
Repayment of long-term debt	`RepaymentsOfLongTermDebt`	$238.37M	USD	Annual
Repayment of long-term debt	`RepaymentsOfLongTermDebt`	$471.95M	USD	Annual
Proceeds from short-term borrowings with maturities greater than three months	`ProceedsFromShortTermDebtMaturingInMoreThanThreeMonths`	$221.00M	USD	Annual
Proceeds from short-term borrowings with maturities greater than three months	`ProceedsFromShortTermDebtMaturingInMoreThanThreeMonths`	$35.00M	USD	Annual
Repayments of short-term borrowings with maturities greater than three months	`RepaymentsOfDebtMaturingInMoreThanThreeMonths`	$256.00M	USD	Annual
Net short-term borrowings (repayments) with maturities less than three months	`ProceedsFromRepaymentsOfShortTermDebtMaturingInThreeMonthsOrLess`	$139.32M	USD	Annual
Net short-term borrowings (repayments) with maturities less than three months	`ProceedsFromRepaymentsOfShortTermDebtMaturingInThreeMonthsOrLess`	$-211.06M	USD	Annual
Net short-term borrowings (repayments) with maturities less than three months	`ProceedsFromRepaymentsOfShortTermDebtMaturingInThreeMonthsOrLess`	$40.65M	USD	Annual
Proceeds from issuances of employee stock plans and DRIP	`ProceedsFromIssuanceOfSharesUnderIncentiveAndShareBasedCompensationPlansIncludingStockOptions`	$20.91M	USD	Annual
Proceeds from issuances of employee stock plans and DRIP	`ProceedsFromIssuanceOfSharesUnderIncentiveAndShareBasedCompensationPlansIncludingStockOptions`	$26.35M	USD	Annual
Proceeds from issuances of employee stock plans and DRIP	`ProceedsFromIssuanceOfSharesUnderIncentiveAndShareBasedCompensationPlansIncludingStockOptions`	$27.86M	USD	Annual
Advances and contributions for construction, net of refunds of $21,470 in 2014, $23,351 in 2013 and $17,850 in 2012	`ProceedsFromConstructionLoansPayable`	$26.30M	USD	Annual
Advances and contributions for construction, net of refunds of $21,470 in 2014, $23,351 in 2013 and $17,850 in 2012	`ProceedsFromConstructionLoansPayable`	$31.91M	USD	Annual
Advances and contributions for construction, net of refunds of $21,470 in 2014, $23,351 in 2013 and $17,850 in 2012	`ProceedsFromConstructionLoansPayable`	$19.25M	USD	Annual
Change in bank overdraft position	`ProceedsFromRepaymentsOfBankOverdrafts`	$-34.81M	USD	Annual
Debt issuance costs	`PaymentsOfDebtIssuanceCosts`	$4.50M	USD	Annual
Debt issuance costs	`PaymentsOfDebtIssuanceCosts`	$7.39M	USD	Annual
Debt issuance costs	`PaymentsOfDebtIssuanceCosts`	$4.59M	USD	Annual
Redemption of preferred stock	`PaymentsForRepurchaseOfPreferredStockAndPreferenceStock`	$3.37M	USD	Annual
Redemption of preferred stock	`PaymentsForRepurchaseOfPreferredStockAndPreferenceStock`	$1.65M	USD	Annual
Redemption of preferred stock	`PaymentsForRepurchaseOfPreferredStockAndPreferenceStock`	$4.38M	USD	Annual
Dividends paid	`PaymentsOfDividendsCommonStock`	$149.45M	USD	Annual
Dividends paid	`PaymentsOfDividendsCommonStock`	$213.46M	USD	Annual
Dividends paid	`PaymentsOfDividendsCommonStock`	$216.35M	USD	Annual
Other	`ProceedsFromPaymentsForOtherFinancingActivities`	$4.84M	USD	Annual
Other	`ProceedsFromPaymentsForOtherFinancingActivities`	$6.43M	USD	Annual
Net cash provided by (used in) financing activities	`NetCashProvidedByUsedInFinancingActivities`	$159.66M	USD	Annual
Net cash provided by (used in) financing activities	`NetCashProvidedByUsedInFinancingActivities`	$-87.18M	USD	Annual
Net cash provided by (used in) financing activities	`NetCashProvidedByUsedInFinancingActivities`	$-563.02M	USD	Annual
Net increase (decrease) in cash and cash equivalents	`CashAndCashEquivalentsPeriodIncreaseDecrease`	$10.23M	USD	Annual
Net increase (decrease) in cash and cash equivalents	`CashAndCashEquivalentsPeriodIncreaseDecrease`	$-3.88M	USD	Annual
Net increase (decrease) in cash and cash equivalents	`CashAndCashEquivalentsPeriodIncreaseDecrease`	$2.53M	USD	Annual
Cash and cash equivalents at beginning of period	`CashAndCashEquivalentsAtCarryingValue`	$23.08M	USD	Point-in-time
Cash and cash equivalents at beginning of period	`CashAndCashEquivalentsAtCarryingValue`	$26.96M	USD	Point-in-time
Cash and cash equivalents at beginning of period	`CashAndCashEquivalentsAtCarryingValue`	$24.43M	USD	Point-in-time
Cash and cash equivalents at beginning of period	`CashAndCashEquivalentsAtCarryingValue`	$14.21M	USD	Point-in-time
Cash and cash equivalents at end of period	`CashAndCashEquivalentsAtCarryingValue`	$23.08M	USD	Point-in-time
Cash and cash equivalents at end of period	`CashAndCashEquivalentsAtCarryingValue`	$26.96M	USD	Point-in-time
Cash and cash equivalents at end of period	`CashAndCashEquivalentsAtCarryingValue`	$24.43M	USD	Point-in-time
Cash and cash equivalents at end of period	`CashAndCashEquivalentsAtCarryingValue`	$14.21M	USD	Point-in-time
Interest, net of capitalized amount	`InterestPaidNet`	$301.14M	USD	Annual
Interest, net of capitalized amount	`InterestPaidNet`	$329.33M	USD	Annual
Interest, net of capitalized amount	`InterestPaidNet`	$317.83M	USD	Annual
Income taxes, net of refunds of $3,668 in 2014, $127 in 2013 and $766 in 2012	`IncomeTaxesPaidNet`	$15.92M	USD	Annual
Income taxes, net of refunds of $3,668 in 2014, $127 in 2013 and $766 in 2012	`IncomeTaxesPaidNet`	$7.79M	USD	Annual
Income taxes, net of refunds of $3,668 in 2014, $127 in 2013 and $766 in 2012	`IncomeTaxesPaidNet`	$5.35M	USD	Annual
Capital expenditures acquired on account but unpaid as of year end	`CapitalExpendituresIncurredButNotYetPaid`	$159.12M	USD	Annual
Capital expenditures acquired on account but unpaid as of year end	`CapitalExpendituresIncurredButNotYetPaid`	$128.90M	USD	Annual
Capital expenditures acquired on account but unpaid as of year end	`CapitalExpendituresIncurredButNotYetPaid`	$185.64M	USD	Annual
Advances and contributions	`ContributionOfProperty`	$12.28M	USD	Annual
Advances and contributions	`ContributionOfProperty`	$17.59M	USD	Annual
Advances and contributions	`ContributionOfProperty`	$16.23M	USD	Annual
Dividends accrued	`DividendsPayableCurrentAndNoncurrent`	$49.91M	USD	Point-in-time
Dividends accrued	`DividendsPayableCurrentAndNoncurrent`	$55.55M	USD	Point-in-time
Long-term debt issued	`NotesIssued1`	$6.70M	USD	Annual
Long-term debt issued	`NotesIssued1`	$9.98M	USD	Annual
Long-term debt issued	`NotesIssued1`	$68.75M	USD	Annual
Long-term debt retired	`NotesReduction`	$3.56M	USD	Annual
Long-term debt retired	`NotesReduction`	$-1.02M	USD	Annual

Stockholders Equity 41 line items

Line Item	Tag	Value	Unit	Period
Other comprehensive income (loss), tax	`OtherComprehensiveIncomeLossTax`	$-29.83M	USD	Annual
Other comprehensive income (loss), tax	`OtherComprehensiveIncomeLossTax`	$52.78M	USD	Annual
Other comprehensive income (loss), tax	`OtherComprehensiveIncomeLossTax`	$-12.11M	USD	Annual
Beginning Balance	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$4.73B	USD	Point-in-time
Beginning Balance	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$4.24B	USD	Point-in-time
Beginning Balance	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$4.92B	USD	Point-in-time
Beginning Balance	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$4.44B	USD	Point-in-time
Net income	`NetIncomeLoss`	$101.26M	USD	1 Quarter
Net income	`NetIncomeLoss`	$369.26M	USD	Annual
Net income	`NetIncomeLoss`	$150.66M	USD	1 Quarter
Net income	`NetIncomeLoss`	$358.07M	USD	Annual
Net income	`NetIncomeLoss`	$57.64M	USD	1 Quarter
Net income	`NetIncomeLoss`	$109.30M	USD	1 Quarter
Net income	`NetIncomeLoss`	$93.50M	USD	1 Quarter
Net income	`NetIncomeLoss`	$68.12M	USD	1 Quarter
Net income	`NetIncomeLoss`	$152.19M	USD	1 Quarter
Net income	`NetIncomeLoss`	$423.11M	USD	Annual
Net income	`NetIncomeLoss`	$59.69M	USD	1 Quarter
Direct stock reinvestment and purchase plan, net of expense	`StockIssuedDuringPeriodValueDividendReinvestmentPlan`	$2.12M	USD	Annual
Direct stock reinvestment and purchase plan, net of expense	`StockIssuedDuringPeriodValueDividendReinvestmentPlan`	$2.09M	USD	Annual
Direct stock reinvestment and purchase plan, net of expense	`StockIssuedDuringPeriodValueDividendReinvestmentPlan`	$2.09M	USD	Annual
Direct stock reinvestment and purchase plan, net of expense (in shares)	`StockIssuedDuringPeriodSharesDividendReinvestmentPlan`	44,000.00	shares	Annual
Direct stock reinvestment and purchase plan, net of expense (in shares)	`StockIssuedDuringPeriodSharesDividendReinvestmentPlan`	53,000.00	shares	Annual
Employee stock purchase plan	`StockIssuedDuringPeriodValueEmployeeStockPurchasePlan`	$4.82M	USD	Annual
Employee stock purchase plan	`StockIssuedDuringPeriodValueEmployeeStockPurchasePlan`	$4.35M	USD	Annual
Employee stock purchase plan	`StockIssuedDuringPeriodValueEmployeeStockPurchasePlan`	$4.55M	USD	Annual
Stock-based compensation activity	`StockIssuedDuringPeriodValueShareBasedCompensation`	$34.49M	USD	Annual
Stock-based compensation activity	`StockIssuedDuringPeriodValueShareBasedCompensation`	$27.00M	USD	Annual
Stock-based compensation activity	`StockIssuedDuringPeriodValueShareBasedCompensation`	$26.40M	USD	Annual
Subsidiary preferred stock redemption	`TemporaryEquityIssuePeriodIncreaseOrDecrease`	$-1.72M	USD	Annual
Subsidiary preferred stock redemption	`TemporaryEquityIssuePeriodIncreaseOrDecrease`	$-2.83M	USD	Annual
Other comprehensive income (loss), net of tax	`OtherComprehensiveIncomeLossNetOfTax`	$81.56M	USD	Annual
Other comprehensive income (loss), net of tax	`OtherComprehensiveIncomeLossNetOfTax`	$-47.23M	USD	Annual
Other comprehensive income (loss), net of tax	`OtherComprehensiveIncomeLossNetOfTax`	$-18.51M	USD	Annual
Dividends	`DividendsCash`	$222.00M	USD	Annual
Dividends	`DividendsCash`	$173.06M	USD	Annual
Dividends	`DividendsCash`	$199.36M	USD	Annual
Ending Balance	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$4.73B	USD	Point-in-time
Ending Balance	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$4.24B	USD	Point-in-time
Ending Balance	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$4.92B	USD	Point-in-time
Ending Balance	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$4.44B	USD	Point-in-time

Comprehensive Income 10 line items

Line Item	Tag	Value	Unit	Period
Change in employee benefit plan funded status, tax	`OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansTax`	$46.97M	USD	Annual
Change in employee benefit plan funded status, tax	`OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansTax`	$-29.49M	USD	Annual
Change in employee benefit plan funded status, tax	`OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansTax`	$-16.89M	USD	Annual
Prior service cost, tax	`OtherComprehensiveIncomeLossAmortizationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansForNetPriorServiceCostCreditTax`	$111.00K	USD	Annual
Prior service cost, tax	`OtherComprehensiveIncomeLossAmortizationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansForNetPriorServiceCostCreditTax`	$113.00K	USD	Annual
Prior service cost, tax	`OtherComprehensiveIncomeLossAmortizationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansForNetPriorServiceCostCreditTax`	$106.00K	USD	Annual
Actuarial (gain) loss, tax	`OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansForNetGainLossTax`	$5.70M	USD	Annual
Actuarial (gain) loss, tax	`OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansForNetGainLossTax`	$-19.00K	USD	Annual
Actuarial (gain) loss, tax	`OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansForNetGainLossTax`	$4.67M	USD	Annual
Unrealized loss on cash flow hedge, tax	`OtherComprehensiveIncomeUnrealizedGainLossOnDerivativesArisingDuringPeriodTax`	$-428.00K	USD	Annual

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