10-K Filing

ATMOS ENERGY CORP CIK: 731802 FY 2019

Filing Information

Form Type	10-K
Accession Number	`0000731802-19-000037`
Period End Date	20190930
Filing Date	20191112
Fiscal Year	2019
Fiscal Period	FY
XBRL Instance	ato201993010-k_htm.xml

Filing Contents

This filing contains the following financial statements:

Balance Sheet 78 Income Statement 111 Cash Flow Statement 133 Stockholders Equity 49 Comprehensive Income 15

Balance Sheet 78 line items

Line Item	Tag	Value	Unit	Period
Allowance for doubtful accounts	`AllowanceForDoubtfulAccountsReceivableCurrent`	$15.90M	USD	Point-in-time
Allowance for doubtful accounts	`AllowanceForDoubtfulAccountsReceivableCurrent`	$14.79M	USD	Point-in-time
Common stock stated value per share (in dollars per share)	`CommonStockParOrStatedValuePerShare`	$0.01	USD	Point-in-time
Common stock stated value per share (in dollars per share)	`CommonStockParOrStatedValuePerShare`	$0.01	USD	Point-in-time
Property, plant and equipment	`PublicUtilitiesPropertyPlantandEquipmentPlantinServiceExcludingConstructionWorkinProgress`	$12.22B	USD	Point-in-time
Property, plant and equipment	`PublicUtilitiesPropertyPlantandEquipmentPlantinServiceExcludingConstructionWorkinProgress`	$13.76B	USD	Point-in-time
Construction in progress	`PublicUtilitiesPropertyPlantAndEquipmentConstructionWorkInProgress`	$349.73M	USD	Point-in-time
Construction in progress	`PublicUtilitiesPropertyPlantAndEquipmentConstructionWorkInProgress`	$421.69M	USD	Point-in-time
Common stock shares authorized (in shares)	`CommonStockSharesAuthorized`	200.00M	shares	Point-in-time
Common stock shares authorized (in shares)	`CommonStockSharesAuthorized`	200.00M	shares	Point-in-time
Total property, plant and equipment and construction in progress	`PublicUtilitiesPropertyPlantAndEquipmentPlantInService`	$12.57B	USD	Point-in-time
Common stock shares issued (in shares)	`CommonStockSharesIssued`	111.27M	shares	Point-in-time
Common stock shares issued (in shares)	`CommonStockSharesIssued`	119.34M	shares	Point-in-time
Total property, plant and equipment and construction in progress	`PublicUtilitiesPropertyPlantAndEquipmentPlantInService`	$14.18B	USD	Point-in-time
Less accumulated depreciation and amortization	`PublicUtilitiesPropertyPlantAndEquipmentAccumulatedDepreciation`	$2.39B	USD	Point-in-time
Less accumulated depreciation and amortization	`PublicUtilitiesPropertyPlantAndEquipmentAccumulatedDepreciation`	$2.20B	USD	Point-in-time
Common stock shares outstanding (in shares)	`CommonStockSharesOutstanding`	111.27M	shares	Point-in-time
Common stock shares outstanding (in shares)	`CommonStockSharesOutstanding`	119.34M	shares	Point-in-time
Net property, plant and equipment	`PublicUtilitiesPropertyPlantAndEquipmentNet`	$11.79B	USD	Point-in-time
Net property, plant and equipment	`PublicUtilitiesPropertyPlantAndEquipmentNet`	$10.37B	USD	Point-in-time
Cash and cash equivalents	`CashAndCashEquivalentsAtCarryingValue`	$47.53M	USD	Point-in-time
Cash and cash equivalents	`CashAndCashEquivalentsAtCarryingValue`	$13.77M	USD	Point-in-time
Cash and cash equivalents	`CashAndCashEquivalentsAtCarryingValue`	$24.55M	USD	Point-in-time
Cash and cash equivalents	`CashAndCashEquivalentsAtCarryingValue`	$26.41M	USD	Point-in-time
Accounts receivable, less allowance for doubtful accounts	`AccountsReceivableNetCurrent`	$230.57M	USD	Point-in-time
Accounts receivable, less allowance for doubtful accounts	`AccountsReceivableNetCurrent`	$253.29M	USD	Point-in-time
Gas stored underground	`EnergyRelatedInventoryGasStoredUnderground`	$130.14M	USD	Point-in-time
Gas stored underground	`EnergyRelatedInventoryGasStoredUnderground`	$165.73M	USD	Point-in-time
Other current assets	`OtherAssetsCurrent`	$72.77M	USD	Point-in-time
Other current assets	`OtherAssetsCurrent`	$46.05M	USD	Point-in-time
Total current assets	`AssetsCurrent`	$478.85M	USD	Point-in-time
Total current assets	`AssetsCurrent`	$458.03M	USD	Point-in-time
Goodwill	`Goodwill`	$730.42M	USD	Point-in-time
Goodwill	`Goodwill`	$730.71M	USD	Point-in-time
Deferred charges and other assets	`OtherAssetsNoncurrent`	$294.02M	USD	Point-in-time
Deferred charges and other assets	`OtherAssetsNoncurrent`	$391.21M	USD	Point-in-time
Total assets	`Assets`	$13.37B	USD	Point-in-time
Total assets	`Assets`	$11.87B	USD	Point-in-time
Common stock, no par value (stated at $.005 per share); 200,000,000 shares authorized; issued and outstanding	`CommonStockValue`	$597.00K	USD	Point-in-time
Common stock, no par value (stated at $.005 per share); 200,000,000 shares authorized; issued and outstanding	`CommonStockValue`	$556.00K	USD	Point-in-time
Additional paid-in capital	`AdditionalPaidInCapitalCommonStock`	$3.71B	USD	Point-in-time
Additional paid-in capital	`AdditionalPaidInCapitalCommonStock`	$2.97B	USD	Point-in-time
Accumulated other comprehensive loss	`AccumulatedOtherComprehensiveIncomeLossNetOfTax`	$-114.58M	USD	Point-in-time
Accumulated other comprehensive loss	`AccumulatedOtherComprehensiveIncomeLossNetOfTax`	$-83.65M	USD	Point-in-time
Retained earnings	`RetainedEarningsAccumulatedDeficit`	$2.15B	USD	Point-in-time
Retained earnings	`RetainedEarningsAccumulatedDeficit`	$1.88B	USD	Point-in-time
Shareholders equity	`StockholdersEquity`	$5.75B	USD	Point-in-time
Shareholders equity	`StockholdersEquity`	$4.77B	USD	Point-in-time
Shareholders equity	`StockholdersEquity`	$3.46B	USD	Point-in-time
Shareholders equity	`StockholdersEquity`	$3.90B	USD	Point-in-time
Long-term debt	`LongTermDebtNoncurrent`	$3.53B	USD	Point-in-time
Long-term debt	`LongTermDebtNoncurrent`	$2.49B	USD	Point-in-time
Total capitalization	`CapitalizationLongtermDebtAndEquity`	$7.26B	USD	Point-in-time
Total capitalization	`CapitalizationLongtermDebtAndEquity`	$9.28B	USD	Point-in-time
Commitments and contingencies (See Note 12)	`CommitmentsAndContingencies`	-	USD	Point-in-time
Commitments and contingencies (See Note 12)	`CommitmentsAndContingencies`	-	USD	Point-in-time
Accounts payable and accrued liabilities	`AccountsPayableAndAccruedLiabilitiesCurrent`	$217.28M	USD	Point-in-time
Accounts payable and accrued liabilities	`AccountsPayableAndAccruedLiabilitiesCurrent`	$265.02M	USD	Point-in-time
Other current liabilities	`OtherLiabilitiesCurrent`	$547.07M	USD	Point-in-time
Other current liabilities	`OtherLiabilitiesCurrent`	$479.50M	USD	Point-in-time
Short-term debt	`ShortTermBorrowings`	$464.92M	USD	Point-in-time
Short-term debt	`ShortTermBorrowings`	$575.78M	USD	Point-in-time
Current maturities of long-term debt	`LongTermDebtCurrent`	-	USD	Point-in-time
Current maturities of long-term debt	`LongTermDebtCurrent`	$575.00M	USD	Point-in-time
Total current liabilities	`LiabilitiesCurrent`	$1.21B	USD	Point-in-time
Total current liabilities	`LiabilitiesCurrent`	$1.92B	USD	Point-in-time
Deferred income taxes	`DeferredTaxLiabilitiesNoncurrent`	$1.30B	USD	Point-in-time
Deferred income taxes	`DeferredTaxLiabilitiesNoncurrent`	$1.15B	USD	Point-in-time
Regulatory excess deferred taxes (See Note 13)	`TaxCutsandJobsActof2017ChangeinTaxRateDeferredTaxLiability`	$705.10M	USD	Point-in-time
Regulatory excess deferred taxes (See Note 13)	`TaxCutsandJobsActof2017ChangeinTaxRateDeferredTaxLiability`	$739.67M	USD	Point-in-time
Regulatory cost of removal obligation	`RegulatoryCostOfRemovalLiabilityNoncurrent`	$473.17M	USD	Point-in-time
Regulatory cost of removal obligation	`RegulatoryCostOfRemovalLiabilityNoncurrent`	$466.40M	USD	Point-in-time
Pension and postretirement liabilities	`PensionAndOtherPostretirementDefinedBenefitPlansLiabilitiesNoncurrent`	$177.52M	USD	Point-in-time
Pension and postretirement liabilities	`PensionAndOtherPostretirementDefinedBenefitPlansLiabilitiesNoncurrent`	$279.08M	USD	Point-in-time
Deferred credits and other liabilities	`OtherLiabilitiesNoncurrent`	$158.03M	USD	Point-in-time
Deferred credits and other liabilities	`OtherLiabilitiesNoncurrent`	$121.13M	USD	Point-in-time
Total shareholders' equity and liabilities	`LiabilitiesAndStockholdersEquity`	$11.87B	USD	Point-in-time
Total shareholders' equity and liabilities	`LiabilitiesAndStockholdersEquity`	$13.37B	USD	Point-in-time

Income Statement 111 line items

Line Item	Tag	Value	Unit	Period
Total operating revenues	`Revenues`	$3.12B	USD	Annual
Total operating revenues	`Revenues`	$2.76B	USD	Annual
Total operating revenues	`Revenues`	$2.90B	USD	Annual
Operation and maintenance expense	`OtherSellingGeneralAndAdministrativeExpense`	$538.72M	USD	Annual
Operation and maintenance expense	`OtherSellingGeneralAndAdministrativeExpense`	$594.79M	USD	Annual
Operation and maintenance expense	`OtherSellingGeneralAndAdministrativeExpense`	$630.31M	USD	Annual
Depreciation and amortization expense	`DepreciationAndAmortization`	$391.46M	USD	Annual
Depreciation and amortization expense	`DepreciationAndAmortization`	$361.08M	USD	Annual
Depreciation and amortization expense	`DepreciationAndAmortization`	$319.45M	USD	Annual
Taxes, other than income	`TaxesOther`	$275.19M	USD	Annual
Taxes, other than income	`TaxesOther`	$263.89M	USD	Annual
Taxes, other than income	`TaxesOther`	$240.41M	USD	Annual
Operating income	`OperatingIncomeLoss`	$242.08M	USD	1 Quarter
Operating income	`OperatingIncomeLoss`	$90.63M	USD	1 Quarter
Operating income	`OperatingIncomeLoss`	$236.46M	USD	1 Quarter
Operating income	`OperatingIncomeLoss`	$122.20M	USD	1 Quarter
Operating income	`OperatingIncomeLoss`	$297.68M	USD	1 Quarter
Operating income	`OperatingIncomeLoss`	$89.72M	USD	1 Quarter
Operating income	`OperatingIncomeLoss`	$727.93M	USD	Annual
Operating income	`OperatingIncomeLoss`	$746.06M	USD	Annual
Operating income	`OperatingIncomeLoss`	$124.32M	USD	1 Quarter
Operating income	`OperatingIncomeLoss`	$270.90M	USD	1 Quarter
Operating income	`OperatingIncomeLoss`	$735.63M	USD	Annual
Other non-operating income (expense)	`OtherNonoperatingIncomeExpense`	$-11.35M	USD	Annual
Other non-operating income (expense)	`OtherNonoperatingIncomeExpense`	$7.40M	USD	Annual
Other non-operating income (expense)	`OtherNonoperatingIncomeExpense`	$-10.14M	USD	Annual
Interest charges	`InterestExpense`	$103.15M	USD	Annual
Interest charges	`InterestExpense`	$106.65M	USD	Annual
Interest charges	`InterestExpense`	$120.18M	USD	Annual
Income from continuing operations before income taxes	`IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments`	$604.09M	USD	Annual
Income from continuing operations before income taxes	`IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments`	$611.14M	USD	Annual
Income from continuing operations before income taxes	`IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments`	$650.31M	USD	Annual
Income tax expense	`IncomeTaxExpenseBenefit`	$138.90M	USD	Annual
Income tax expense	`IncomeTaxExpenseBenefit`	$221.38M	USD	Annual
Income tax expense	`IncomeTaxExpenseBenefit`	$8.08M	USD	Annual
Income from continuing operations	`IncomeLossFromContinuingOperations`	$511.41M	USD	Annual
Income from continuing operations	`IncomeLossFromContinuingOperations`	$603.06M	USD	Annual
Income from continuing operations	`IncomeLossFromContinuingOperations`	$382.71M	USD	Annual
Income from discontinued operations, net of tax	`DiscontinuedOperationIncomeLossFromDiscontinuedOperationDuringPhaseOutPeriodNetOfTax`	-	USD	Annual
Income from discontinued operations, net of tax	`DiscontinuedOperationIncomeLossFromDiscontinuedOperationDuringPhaseOutPeriodNetOfTax`	-	USD	Annual
Income from discontinued operations, net of tax	`DiscontinuedOperationIncomeLossFromDiscontinuedOperationDuringPhaseOutPeriodNetOfTax`	$10.99M	USD	Annual
Gain on sale of discontinued operations, net of tax	`DiscontinuedOperationGainLossOnDisposalOfDiscontinuedOperationNetOfTax`	-	USD	Annual
Gain on sale of discontinued operations, net of tax	`DiscontinuedOperationGainLossOnDisposalOfDiscontinuedOperationNetOfTax`	-	USD	Annual
Gain on sale of discontinued operations, net of tax	`DiscontinuedOperationGainLossOnDisposalOfDiscontinuedOperationNetOfTax`	$2.72M	USD	Annual
Net Income	`NetIncomeLoss`	$80.47M	USD	1 Quarter
Net Income	`NetIncomeLoss`	$511.41M	USD	Annual
Net Income	`NetIncomeLoss`	$178.99M	USD	1 Quarter
Net Income	`NetIncomeLoss`	$71.19M	USD	1 Quarter
Net Income	`NetIncomeLoss`	$603.06M	USD	Annual
Net Income	`NetIncomeLoss`	$214.89M	USD	1 Quarter
Net Income	`NetIncomeLoss`	$396.42M	USD	Annual
Net Income	`NetIncomeLoss`	$58.41M	USD	1 Quarter
Net Income	`NetIncomeLoss`	$157.65M	USD	1 Quarter
Net Income	`NetIncomeLoss`	$314.13M	USD	1 Quarter
Net Income	`NetIncomeLoss`	$38.75M	USD	1 Quarter
Income per share from continuing operations - basic	`IncomeLossFromContinuingOperationsPerBasicShare`	$5.43	USD	Annual
Income per share from continuing operations - basic	`IncomeLossFromContinuingOperationsPerBasicShare`	$3.60	USD	Annual
Income per share from continuing operations - basic	`IncomeLossFromContinuingOperationsPerBasicShare`	$4.36	USD	Annual
Income per share from discontinued operations - basic	`IncomeLossFromDiscontinuedOperationsNetOfTaxPerBasicShare`	-	USD	Annual
Income per share from discontinued operations - basic	`IncomeLossFromDiscontinuedOperationsNetOfTaxPerBasicShare`	$0.13	USD	Annual
Income per share from discontinued operations - basic	`IncomeLossFromDiscontinuedOperationsNetOfTaxPerBasicShare`	-	USD	Annual
Net income per share - basic	`EarningsPerShareBasic`	$3.73	USD	1 Quarter
Net income per share - basic	`EarningsPerShareBasic`	$4.36	USD	Annual
Net income per share - basic	`EarningsPerShareBasic`	$2.89	USD	1 Quarter
Net income per share - basic	`EarningsPerShareBasic`	$0.64	USD	1 Quarter
Net income per share - basic	`EarningsPerShareBasic`	$5.43	USD	Annual
Net income per share - basic	`EarningsPerShareBasic`	$3.73	USD	Annual
Net income per share - basic	`EarningsPerShareBasic`	$1.38	USD	1 Quarter
Net income per share - basic	`EarningsPerShareBasic`	$0.68	USD	1 Quarter
Net income per share - basic	`EarningsPerShareBasic`	$1.60	USD	1 Quarter
Net income per share - basic	`EarningsPerShareBasic`	$0.35	USD	1 Quarter
Net income per share - basic	`EarningsPerShareBasic`	$1.83	USD	1 Quarter
Net income per share - basic	`EarningsPerShareBasic`	$0.49	USD	1 Quarter
Income per share from continuing operations - diluted	`IncomeLossFromContinuingOperationsPerDilutedShare`	$3.60	USD	Annual
Income per share from continuing operations - diluted	`IncomeLossFromContinuingOperationsPerDilutedShare`	$4.35	USD	Annual
Income per share from continuing operations - diluted	`IncomeLossFromContinuingOperationsPerDilutedShare`	$5.43	USD	Annual
Income per share from discontinued operations - diluted	`DiscontinuedOperationIncomeLossFromDiscontinuedOperationNetOfTaxPerDilutedShare`	-	USD	Annual
Income per share from discontinued operations - diluted	`DiscontinuedOperationIncomeLossFromDiscontinuedOperationNetOfTaxPerDilutedShare`	$0.13	USD	Annual
Income per share from discontinued operations - diluted	`DiscontinuedOperationIncomeLossFromDiscontinuedOperationNetOfTaxPerDilutedShare`	-	USD	Annual
Net income per share - diluted	`EarningsPerShareDiluted`	$3.73	USD	Annual
Net income per share - diluted	`EarningsPerShareDiluted`	$0.35	USD	1 Quarter
Net income per share - diluted	`EarningsPerShareDiluted`	$5.43	USD	Annual
Net income per share - diluted	`EarningsPerShareDiluted`	$2.89	USD	1 Quarter
Net income per share - diluted	`EarningsPerShareDiluted`	$1.60	USD	1 Quarter
Net income per share - diluted	`EarningsPerShareDiluted`	$4.35	USD	Annual
Net income per share - diluted	`EarningsPerShareDiluted`	$0.49	USD	1 Quarter
Net income per share - diluted	`EarningsPerShareDiluted`	$1.38	USD	1 Quarter
Net income per share - diluted	`EarningsPerShareDiluted`	$1.82	USD	1 Quarter
Net income per share - diluted	`EarningsPerShareDiluted`	$0.64	USD	1 Quarter
Net income per share - diluted	`EarningsPerShareDiluted`	$0.68	USD	1 Quarter
Weighted average shares outstanding - basic	`WeightedAverageNumberOfSharesOutstandingBasic`	117.20M	shares	Annual
Weighted average shares outstanding - basic	`WeightedAverageNumberOfSharesOutstandingBasic`	111.01M	shares	Annual
Weighted average shares outstanding - basic	`WeightedAverageNumberOfSharesOutstandingBasic`	106.10M	shares	Annual
Weighted average shares outstanding - diluted	`WeightedAverageNumberOfDilutedSharesOutstanding`	106.10M	shares	Annual
Weighted average shares outstanding - diluted	`WeightedAverageNumberOfDilutedSharesOutstanding`	117.46M	shares	Annual
Weighted average shares outstanding - diluted	`WeightedAverageNumberOfDilutedSharesOutstanding`	111.01M	shares	Annual
Net unrealized holding gains (losses) on available-for-sale securities, net of tax	`OtherComprehensiveIncomeLossAvailableForSaleSecuritiesAdjustmentNetOfTax`	$-395.00K	USD	Annual
Net unrealized holding gains (losses) on available-for-sale securities, net of tax	`OtherComprehensiveIncomeLossAvailableForSaleSecuritiesAdjustmentNetOfTax`	$218.00K	USD	Annual
Net unrealized holding gains (losses) on available-for-sale securities, net of tax	`OtherComprehensiveIncomeLossAvailableForSaleSecuritiesAdjustmentNetOfTax`	$2.56M	USD	Annual
Amortization and unrealized gain on interest rate agreements, net of tax	`OtherComprehensiveIncomeLossDerivativesQualifyingAsHedgesNetOfTax`	$-22.94M	USD	Annual
Amortization and unrealized gain on interest rate agreements, net of tax	`OtherComprehensiveIncomeLossDerivativesQualifyingAsHedgesNetOfTax`	$44.94M	USD	Annual
Amortization and unrealized gain on interest rate agreements, net of tax	`OtherComprehensiveIncomeLossDerivativesQualifyingAsHedgesNetOfTax`	$75.22M	USD	Annual
Net unrealized gains on commodity cash flow hedges, net of tax	`OtherComprehensiveIncomeLossCommodityContractDerivativesQualifyingasHedgesNetofTax`	-	USD	Annual
Net unrealized gains on commodity cash flow hedges, net of tax	`OtherComprehensiveIncomeLossCommodityContractDerivativesQualifyingasHedgesNetofTax`	-	USD	Annual
Net unrealized gains on commodity cash flow hedges, net of tax	`OtherComprehensiveIncomeLossCommodityContractDerivativesQualifyingasHedgesNetofTax`	$4.98M	USD	Annual
Total other comprehensive income (loss)	`OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent`	$-22.73M	USD	Annual
Total other comprehensive income (loss)	`OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent`	$82.77M	USD	Annual
Total other comprehensive income (loss)	`OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent`	$44.54M	USD	Annual
Total comprehensive income	`ComprehensiveIncomeNetOfTax`	$479.19M	USD	Annual
Total comprehensive income	`ComprehensiveIncomeNetOfTax`	$488.68M	USD	Annual
Total comprehensive income	`ComprehensiveIncomeNetOfTax`	$647.61M	USD	Annual

Cash Flow Statement 133 line items

Line Item	Tag	Value	Unit	Period
Net income	`NetIncomeLoss`	$80.47M	USD	1 Quarter
Net income	`NetIncomeLoss`	$511.41M	USD	Annual
Net income	`NetIncomeLoss`	$178.99M	USD	1 Quarter
Net income	`NetIncomeLoss`	$71.19M	USD	1 Quarter
Net income	`NetIncomeLoss`	$603.06M	USD	Annual
Net income	`NetIncomeLoss`	$214.89M	USD	1 Quarter
Net income	`NetIncomeLoss`	$396.42M	USD	Annual
Net income	`NetIncomeLoss`	$58.41M	USD	1 Quarter
Net income	`NetIncomeLoss`	$157.65M	USD	1 Quarter
Net income	`NetIncomeLoss`	$314.13M	USD	1 Quarter
Net income	`NetIncomeLoss`	$38.75M	USD	1 Quarter
Depreciation and amortization	`DepreciationDepletionAndAmortization`	$361.08M	USD	Annual
Depreciation and amortization	`DepreciationDepletionAndAmortization`	$319.63M	USD	Annual
Depreciation and amortization	`DepreciationDepletionAndAmortization`	$391.46M	USD	Annual
Deferred income taxes	`DeferredIncomeTaxExpenseBenefit`	$227.18M	USD	Annual
Deferred income taxes	`DeferredIncomeTaxExpenseBenefit`	$158.27M	USD	Annual
Deferred income taxes	`DeferredIncomeTaxExpenseBenefit`	$132.00M	USD	Annual
One-time income tax benefit	`TaxCutsAndJobsActOf2017ChangeInTaxRateIncomeTaxExpenseBenefit`	-	USD	Annual
One-time income tax benefit	`TaxCutsAndJobsActOf2017ChangeInTaxRateIncomeTaxExpenseBenefit`	$-158.78M	USD	Annual
One-time income tax benefit	`TaxCutsAndJobsActOf2017ChangeInTaxRateIncomeTaxExpenseBenefit`	-	USD	Annual
Gain on sale of discontinued operations	`DiscontinuedOperationGainLossFromDisposalOfDiscontinuedOperationBeforeIncomeTax`	$12.93M	USD	Annual
Gain on sale of discontinued operations	`DiscontinuedOperationGainLossFromDisposalOfDiscontinuedOperationBeforeIncomeTax`	-	USD	Annual
Gain on sale of discontinued operations	`DiscontinuedOperationGainLossFromDisposalOfDiscontinuedOperationBeforeIncomeTax`	-	USD	Annual
Discontinued cash flow hedging for commodity contracts	`GainOnDiscontinuationOfCashFlowHedgeDueToForecastedTransactionProbableOfNotOccurring`	-	USD	Annual
Discontinued cash flow hedging for commodity contracts	`GainOnDiscontinuationOfCashFlowHedgeDueToForecastedTransactionProbableOfNotOccurring`	$10.58M	USD	Annual
Discontinued cash flow hedging for commodity contracts	`GainOnDiscontinuationOfCashFlowHedgeDueToForecastedTransactionProbableOfNotOccurring`	-	USD	Annual
Stock-based compensation	`ShareBasedCompensation`	$14.06M	USD	Annual
Stock-based compensation	`ShareBasedCompensation`	$12.86M	USD	Annual
Stock-based compensation	`ShareBasedCompensation`	$11.12M	USD	Annual
Amortization of debt issuance costs	`AmortizationOfFinancingCostsAndDiscounts`	$9.46M	USD	Annual
Amortization of debt issuance costs	`AmortizationOfFinancingCostsAndDiscounts`	$7.87M	USD	Annual
Amortization of debt issuance costs	`AmortizationOfFinancingCostsAndDiscounts`	$6.47M	USD	Annual
Equity Component of AFUDC	`PublicUtilitiesAllowanceForFundsUsedDuringConstructionCapitalizedCostOfEquity`	-	USD	Annual
Equity Component of AFUDC	`PublicUtilitiesAllowanceForFundsUsedDuringConstructionCapitalizedCostOfEquity`	-	USD	Annual
Equity Component of AFUDC	`PublicUtilitiesAllowanceForFundsUsedDuringConstructionCapitalizedCostOfEquity`	$11.16M	USD	Annual
Other	`OtherNoncashIncomeExpense`	$-1.17M	USD	Annual
Other	`OtherNoncashIncomeExpense`	$-5.44M	USD	Annual
Other	`OtherNoncashIncomeExpense`	$-97.00K	USD	Annual
(Increase) decrease in accounts receivable	`IncreaseDecreaseInAccountsReceivable`	$58.70M	USD	Annual
(Increase) decrease in accounts receivable	`IncreaseDecreaseInAccountsReceivable`	$-18.72M	USD	Annual
(Increase) decrease in accounts receivable	`IncreaseDecreaseInAccountsReceivable`	$29.21M	USD	Annual
(Increase) decrease in gas stored underground	`IncreaseDecreaseInInventories`	$-18.92M	USD	Annual
(Increase) decrease in gas stored underground	`IncreaseDecreaseInInventories`	$-35.59M	USD	Annual
(Increase) decrease in gas stored underground	`IncreaseDecreaseInInventories`	$35.13M	USD	Annual
(Increase) decrease in other current assets	`IncreaseDecreaseInOtherCurrentAssets`	$26.59M	USD	Annual
(Increase) decrease in other current assets	`IncreaseDecreaseInOtherCurrentAssets`	$-9.99M	USD	Annual
(Increase) decrease in other current assets	`IncreaseDecreaseInOtherCurrentAssets`	$-60.42M	USD	Annual
(Increase) decrease in deferred charges and other assets	`IncreaseDecreaseInOtherNoncurrentAssets`	$-102.25M	USD	Annual
(Increase) decrease in deferred charges and other assets	`IncreaseDecreaseInOtherNoncurrentAssets`	$58.40M	USD	Annual
(Increase) decrease in deferred charges and other assets	`IncreaseDecreaseInOtherNoncurrentAssets`	$10.05M	USD	Annual
Increase (decrease) in accounts payable and accrued liabilities	`IncreaseDecreaseInAccountsPayableAndAccruedLiabilities`	$-11.86M	USD	Annual
Increase (decrease) in accounts payable and accrued liabilities	`IncreaseDecreaseInAccountsPayableAndAccruedLiabilities`	$9.91M	USD	Annual
Increase (decrease) in accounts payable and accrued liabilities	`IncreaseDecreaseInAccountsPayableAndAccruedLiabilities`	$53.02M	USD	Annual
Increase (decrease) in other current liabilities	`IncreaseDecreaseInOtherCurrentLiabilities`	$-103.89M	USD	Annual
Increase (decrease) in other current liabilities	`IncreaseDecreaseInOtherCurrentLiabilities`	$74.71M	USD	Annual
Increase (decrease) in other current liabilities	`IncreaseDecreaseInOtherCurrentLiabilities`	$-78.65M	USD	Annual
Increase (decrease) in deferred credits and other liabilities	`IncreaseDecreaseInOtherNoncurrentLiabilities`	$31.92M	USD	Annual
Increase (decrease) in deferred credits and other liabilities	`IncreaseDecreaseInOtherNoncurrentLiabilities`	$-66.06M	USD	Annual
Increase (decrease) in deferred credits and other liabilities	`IncreaseDecreaseInOtherNoncurrentLiabilities`	$47.98M	USD	Annual
Net cash provided by operating activities	`NetCashProvidedByUsedInOperatingActivities`	$968.77M	USD	Annual
Net cash provided by operating activities	`NetCashProvidedByUsedInOperatingActivities`	$1.12B	USD	Annual
Net cash provided by operating activities	`NetCashProvidedByUsedInOperatingActivities`	$867.09M	USD	Annual
Capital expenditures	`PaymentsToAcquireProductiveAssets`	$1.14B	USD	Annual
Capital expenditures	`PaymentsToAcquireProductiveAssets`	$1.47B	USD	Annual
Capital expenditures	`PaymentsToAcquireProductiveAssets`	$1.69B	USD	Annual
Acquisition	`PaymentsToAcquireOilAndGasEquipment`	$86.13M	USD	Annual
Acquisition	`PaymentsToAcquireOilAndGasEquipment`	-	USD	Annual
Acquisition	`PaymentsToAcquireOilAndGasEquipment`	-	USD	Annual
Proceeds from the sale of discontinued operations	`CashProvidedByUsedInInvestingActivitiesDiscontinuedOperations`	$4.00M	USD	Annual
Proceeds from the sale of discontinued operations	`CashProvidedByUsedInInvestingActivitiesDiscontinuedOperations`	$3.00M	USD	Annual
Proceeds from the sale of discontinued operations	`CashProvidedByUsedInInvestingActivitiesDiscontinuedOperations`	$140.25M	USD	Annual
Purchases of debt and equity securities	`PaymentsToAcquireAvailableForSaleSecurities`	$46.40M	USD	Annual
Purchases of debt and equity securities	`PaymentsToAcquireAvailableForSaleSecurities`	$53.60M	USD	Annual
Purchases of debt and equity securities	`PaymentsToAcquireAvailableForSaleSecurities`	$29.15M	USD	Annual
Proceeds from sale of debt and equity securities	`ProceedsFromSaleOfAvailableForSaleSecurities`	$31.79M	USD	Annual
Proceeds from sale of debt and equity securities	`ProceedsFromSaleOfAvailableForSaleSecurities`	$22.36M	USD	Annual
Proceeds from sale of debt and equity securities	`ProceedsFromSaleOfAvailableForSaleSecurities`	$6.07M	USD	Annual
Maturities of debt securities	`ProceedsFromMaturitiesPrepaymentsAndCallsOfAvailableForSaleSecurities`	$15.72M	USD	Annual
Maturities of debt securities	`ProceedsFromMaturitiesPrepaymentsAndCallsOfAvailableForSaleSecurities`	$9.33M	USD	Annual
Maturities of debt securities	`ProceedsFromMaturitiesPrepaymentsAndCallsOfAvailableForSaleSecurities`	$20.30M	USD	Annual
Use tax refund	`ProceedsFromUseTaxRefundInvestingActivities`	$790.00K	USD	Annual
Use tax refund	`ProceedsFromUseTaxRefundInvestingActivities`	$29.79M	USD	Annual
Use tax refund	`ProceedsFromUseTaxRefundInvestingActivities`	-	USD	Annual
Other, net	`PaymentsForProceedsFromOtherInvestingActivities`	$-8.56M	USD	Annual
Other, net	`PaymentsForProceedsFromOtherInvestingActivities`	$-8.60M	USD	Annual
Other, net	`PaymentsForProceedsFromOtherInvestingActivities`	$-9.34M	USD	Annual
Net cash used in investing activities	`NetCashProvidedByUsedInInvestingActivities`	$-1.46B	USD	Annual
Net cash used in investing activities	`NetCashProvidedByUsedInInvestingActivities`	$-1.06B	USD	Annual
Net cash used in investing activities	`NetCashProvidedByUsedInInvestingActivities`	$-1.68B	USD	Annual
Net increase (decrease) in short-term debt	`ProceedsFromRepaymentsOfShortTermDebt`	$-382.07M	USD	Annual
Net increase (decrease) in short-term debt	`ProceedsFromRepaymentsOfShortTermDebt`	$128.03M	USD	Annual
Net increase (decrease) in short-term debt	`ProceedsFromRepaymentsOfShortTermDebt`	$-110.86M	USD	Annual
Proceeds from issuance of long-term debt, net of premium/discount	`ProceedsFromIssuanceOfLongTermDebt`	$1.05B	USD	Annual
Proceeds from issuance of long-term debt, net of premium/discount	`ProceedsFromIssuanceOfLongTermDebt`	$884.91M	USD	Annual
Proceeds from issuance of long-term debt, net of premium/discount	`ProceedsFromIssuanceOfLongTermDebt`	-	USD	Annual
Net proceeds from equity offering	`ProceedsFromIssuanceOfCommonStock`	$395.09M	USD	Annual
Net proceeds from equity offering	`ProceedsFromIssuanceOfCommonStock`	$694.10M	USD	Annual
Net proceeds from equity offering	`ProceedsFromIssuanceOfCommonStock`	$98.75M	USD	Annual
Issuance of common stock through stock purchase and employee retirement plans	`ProceedsFromIssuanceOrSaleOfEquity`	$19.56M	USD	Annual
Issuance of common stock through stock purchase and employee retirement plans	`ProceedsFromIssuanceOrSaleOfEquity`	$19.32M	USD	Annual
Issuance of common stock through stock purchase and employee retirement plans	`ProceedsFromIssuanceOrSaleOfEquity`	$26.52M	USD	Annual
Settlement of interest rate swaps	`PaymentsForProceedsFromHedgeFinancingActivities`	$90.14M	USD	Annual
Settlement of interest rate swaps	`PaymentsForProceedsFromHedgeFinancingActivities`	$37.00M	USD	Annual
Settlement of interest rate swaps	`PaymentsForProceedsFromHedgeFinancingActivities`	-	USD	Annual
Interest rate swaps cash collateral	`PaymentsforProceedsfromHedgeFinancingActivitiesCashCollateral`	-	USD	Annual
Interest rate swaps cash collateral	`PaymentsforProceedsfromHedgeFinancingActivitiesCashCollateral`	-	USD	Annual
Interest rate swaps cash collateral	`PaymentsforProceedsfromHedgeFinancingActivitiesCashCollateral`	$-25.67M	USD	Annual
Repayment of long-term debt	`RepaymentsOfLongTermDebt`	$575.00M	USD	Annual
Repayment of long-term debt	`RepaymentsOfLongTermDebt`	-	USD	Annual
Repayment of long-term debt	`RepaymentsOfLongTermDebt`	$250.00M	USD	Annual
Cash dividends paid	`PaymentsOfDividendsCommonStock`	$191.93M	USD	Annual
Cash dividends paid	`PaymentsOfDividendsCommonStock`	$245.72M	USD	Annual
Cash dividends paid	`PaymentsOfDividendsCommonStock`	$214.91M	USD	Annual
Debt issuance costs	`PaymentsOfDebtIssuanceCosts`	$6.78M	USD	Annual
Debt issuance costs	`PaymentsOfDebtIssuanceCosts`	-	USD	Annual
Debt issuance costs	`PaymentsOfDebtIssuanceCosts`	$11.25M	USD	Annual
Other	`ProceedsFromPaymentsForOtherFinancingActivities`	$-1.52M	USD	Annual
Other	`ProceedsFromPaymentsForOtherFinancingActivities`	-	USD	Annual
Other	`ProceedsFromPaymentsForOtherFinancingActivities`	-	USD	Annual
Net cash provided by financing activities	`NetCashProvidedByUsedInFinancingActivities`	$326.27M	USD	Annual
Net cash provided by financing activities	`NetCashProvidedByUsedInFinancingActivities`	$725.67M	USD	Annual
Net cash provided by financing activities	`NetCashProvidedByUsedInFinancingActivities`	$168.09M	USD	Annual
Net increase (decrease) in cash and cash equivalents	`CashAndCashEquivalentsPeriodIncreaseDecrease`	$-12.64M	USD	Annual
Net increase (decrease) in cash and cash equivalents	`CashAndCashEquivalentsPeriodIncreaseDecrease`	$10.78M	USD	Annual
Net increase (decrease) in cash and cash equivalents	`CashAndCashEquivalentsPeriodIncreaseDecrease`	$-21.12M	USD	Annual
Cash and cash equivalents at beginning of year	`CashAndCashEquivalentsAtCarryingValue`	$47.53M	USD	Point-in-time
Cash and cash equivalents at beginning of year	`CashAndCashEquivalentsAtCarryingValue`	$13.77M	USD	Point-in-time
Cash and cash equivalents at beginning of year	`CashAndCashEquivalentsAtCarryingValue`	$24.55M	USD	Point-in-time
Cash and cash equivalents at beginning of year	`CashAndCashEquivalentsAtCarryingValue`	$26.41M	USD	Point-in-time
Cash and cash equivalents at end of year	`CashAndCashEquivalentsAtCarryingValue`	$47.53M	USD	Point-in-time
Cash and cash equivalents at end of year	`CashAndCashEquivalentsAtCarryingValue`	$13.77M	USD	Point-in-time
Cash and cash equivalents at end of year	`CashAndCashEquivalentsAtCarryingValue`	$24.55M	USD	Point-in-time
Cash and cash equivalents at end of year	`CashAndCashEquivalentsAtCarryingValue`	$26.41M	USD	Point-in-time

Stockholders Equity 49 line items

Line Item	Tag	Value	Unit	Period
Cash dividends per share (in dollars per share)	`CommonStockDividendsPerShareCashPaid`	$1.94	USD	Annual
Cash dividends per share (in dollars per share)	`CommonStockDividendsPerShareCashPaid`	$1.80	USD	Annual
Cash dividends per share (in dollars per share)	`CommonStockDividendsPerShareCashPaid`	$2.10	USD	Annual
Common stock shares outstanding, balance (in shares)	`CommonStockSharesOutstanding`	111.27M	shares	Point-in-time
Common stock shares outstanding, balance (in shares)	`CommonStockSharesOutstanding`	119.34M	shares	Point-in-time
Shareholders' equity, beginning balance	`StockholdersEquity`	$5.75B	USD	Point-in-time
Shareholders' equity, beginning balance	`StockholdersEquity`	$4.77B	USD	Point-in-time
Shareholders' equity, beginning balance	`StockholdersEquity`	$3.46B	USD	Point-in-time
Shareholders' equity, beginning balance	`StockholdersEquity`	$3.90B	USD	Point-in-time
Net income	`NetIncomeLoss`	$80.47M	USD	1 Quarter
Net income	`NetIncomeLoss`	$511.41M	USD	Annual
Net income	`NetIncomeLoss`	$178.99M	USD	1 Quarter
Net income	`NetIncomeLoss`	$71.19M	USD	1 Quarter
Net income	`NetIncomeLoss`	$603.06M	USD	Annual
Net income	`NetIncomeLoss`	$214.89M	USD	1 Quarter
Net income	`NetIncomeLoss`	$396.42M	USD	Annual
Net income	`NetIncomeLoss`	$58.41M	USD	1 Quarter
Net income	`NetIncomeLoss`	$157.65M	USD	1 Quarter
Net income	`NetIncomeLoss`	$314.13M	USD	1 Quarter
Net income	`NetIncomeLoss`	$38.75M	USD	1 Quarter
Other comprehensive income (loss)	`OtherComprehensiveIncomeLossNetOfTax`	$82.77M	USD	Annual
Other comprehensive income (loss)	`OtherComprehensiveIncomeLossNetOfTax`	$-22.73M	USD	Annual
Other comprehensive income (loss)	`OtherComprehensiveIncomeLossNetOfTax`	$44.54M	USD	Annual
Cash dividends	`DividendsCommonStockCash`	$191.93M	USD	Annual
Cash dividends	`DividendsCommonStockCash`	$245.72M	USD	Annual
Cash dividends	`DividendsCommonStockCash`	$214.91M	USD	Annual
Public offering (in shares)	`StockIssuedDuringPeriodSharesNewIssues`	1.09M	shares	1 Quarter
Public offering (in shares)	`StockIssuedDuringPeriodSharesNewIssues`	1.09M	shares	1 Quarter
Public offering	`StockIssuedDuringPeriodValueNewIssues`	$694.10M	USD	Annual
Public offering	`StockIssuedDuringPeriodValueNewIssues`	$98.75M	USD	Annual
Public offering	`StockIssuedDuringPeriodValueNewIssues`	$395.09M	USD	Annual
Direct stock purchase plan	`StockIssuedDuringPeriodValueOther`	$11.07M	USD	Annual
Direct stock purchase plan	`StockIssuedDuringPeriodValueOther`	$8.97M	USD	Annual
Direct stock purchase plan	`StockIssuedDuringPeriodValueOther`	$11.32M	USD	Annual
Retirement savings plan	`StockIssuedDuringPeriodValueEmployeeBenefitPlan`	$17.55M	USD	Annual
Retirement savings plan	`StockIssuedDuringPeriodValueEmployeeBenefitPlan`	$8.24M	USD	Annual
Retirement savings plan	`StockIssuedDuringPeriodValueEmployeeBenefitPlan`	$8.25M	USD	Annual
1998 Long-term incentive plan	`StockIssuedDuringPeriodValueRestrictedStockAwardNetOfForfeitures`	$3.70M	USD	Annual
1998 Long-term incentive plan	`StockIssuedDuringPeriodValueRestrictedStockAwardNetOfForfeitures`	$2.95M	USD	Annual
1998 Long-term incentive plan	`StockIssuedDuringPeriodValueRestrictedStockAwardNetOfForfeitures`	$3.47M	USD	Annual
Employee stock-based compensation	`StockIssuedDuringPeriodValueShareBasedCompensation`	$19.37M	USD	Annual
Employee stock-based compensation	`StockIssuedDuringPeriodValueShareBasedCompensation`	$20.46M	USD	Annual
Employee stock-based compensation	`StockIssuedDuringPeriodValueShareBasedCompensation`	$20.93M	USD	Annual
Common stock shares outstanding, ending balance (in shares)	`CommonStockSharesOutstanding`	111.27M	shares	Point-in-time
Common stock shares outstanding, ending balance (in shares)	`CommonStockSharesOutstanding`	119.34M	shares	Point-in-time
Shareholders' equity, ending balance	`StockholdersEquity`	$5.75B	USD	Point-in-time
Shareholders' equity, ending balance	`StockholdersEquity`	$4.77B	USD	Point-in-time
Shareholders' equity, ending balance	`StockholdersEquity`	$3.46B	USD	Point-in-time
Shareholders' equity, ending balance	`StockholdersEquity`	$3.90B	USD	Point-in-time

Comprehensive Income 15 line items

Line Item	Tag	Value	Unit	Period
Income tax expense	`DiscontinuedOperationTaxEffectOfDiscontinuedOperation`	-	USD	Annual
Income tax expense	`DiscontinuedOperationTaxEffectOfDiscontinuedOperation`	-	USD	Annual
Income tax expense	`DiscontinuedOperationTaxEffectOfDiscontinuedOperation`	$6.84M	USD	Annual
Gain on sale of discontinued operations, tax	`DiscontinuedOperationTaxEffectOfIncomeLossFromDisposalOfDiscontinuedOperation`	-	USD	Annual
Gain on sale of discontinued operations, tax	`DiscontinuedOperationTaxEffectOfIncomeLossFromDisposalOfDiscontinuedOperation`	$10.21M	USD	Annual
Gain on sale of discontinued operations, tax	`DiscontinuedOperationTaxEffectOfIncomeLossFromDisposalOfDiscontinuedOperation`	-	USD	Annual
Net unrealized holding gains (losses) on available-for-sale securities, tax	`OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodTax`	$1.47M	USD	Annual
Net unrealized holding gains (losses) on available-for-sale securities, tax	`OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodTax`	$64.00K	USD	Annual
Net unrealized holding gains (losses) on available-for-sale securities, tax	`OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodTax`	$-146.00K	USD	Annual
Amortization and unrealized gain (loss) on interest rate agreements, tax	`OtherComprehensiveIncomeLossInterestRateContractDerivativesQualifyingasHedgesTax`	$13.02M	USD	Annual
Amortization and unrealized gain (loss) on interest rate agreements, tax	`OtherComprehensiveIncomeLossInterestRateContractDerivativesQualifyingasHedgesTax`	$43.24M	USD	Annual
Amortization and unrealized gain (loss) on interest rate agreements, tax	`OtherComprehensiveIncomeLossInterestRateContractDerivativesQualifyingasHedgesTax`	$-6.78M	USD	Annual
Net unrealized gains on commodity cash flow hedges, tax	`OtherComprehensiveIncomeLossCommodityContractDerivativesQualifyingasHedgesTax`	-	USD	Annual
Net unrealized gains on commodity cash flow hedges, tax	`OtherComprehensiveIncomeLossCommodityContractDerivativesQualifyingasHedgesTax`	$3.18M	USD	Annual
Net unrealized gains on commodity cash flow hedges, tax	`OtherComprehensiveIncomeLossCommodityContractDerivativesQualifyingasHedgesTax`	-	USD	Annual

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