10-K Filing

ALLIANT ENERGY CORP CIK: 352541 FY 2014

Filing Information

Form Type	10-K
Accession Number	`0000352541-15-000005`
Period End Date	20141231
Filing Date	20150225
Fiscal Year	2014
Fiscal Period	FY
XBRL Instance	lnt-20141231.xml

Filing Contents

This filing contains the following financial statements:

Balance Sheet 97 Income Statement 150 Cash Flow Statement 113 Stockholders Equity 39

Balance Sheet 97 line items

Line Item	Tag	Value	Unit	Period
Common stock, par value (in dollars per share)	`CommonStockParOrStatedValuePerShare`	$0.01	USD	Point-in-time
Common stock, par value (in dollars per share)	`CommonStockParOrStatedValuePerShare`	$0.01	USD	Point-in-time
Common stock, shares authorized (in shares)	`CommonStockSharesAuthorized`	240.00M	shares	Point-in-time
Common stock, shares authorized (in shares)	`CommonStockSharesAuthorized`	240.00M	shares	Point-in-time
Common stock, shares outstanding (in shares)	`CommonStockSharesOutstanding`	110.99M	shares	Point-in-time
Common stock, shares outstanding (in shares)	`CommonStockSharesOutstanding`	110.94M	shares	Point-in-time
Cash and cash equivalents	`CashAndCashEquivalentsAtCarryingValue`	$21.20M	USD	Point-in-time
Common stock, shares outstanding (in shares)	`CommonStockSharesOutstanding`	110.94M	shares	Point-in-time
Common stock, shares outstanding (in shares)	`CommonStockSharesOutstanding`	111.02M	shares	Point-in-time
Cash and cash equivalents	`CashAndCashEquivalentsAtCarryingValue`	$9.80M	USD	Point-in-time
Cash and cash equivalents	`CashAndCashEquivalentsAtCarryingValue`	$11.40M	USD	Point-in-time
Cash and cash equivalents	`CashAndCashEquivalentsAtCarryingValue`	$56.90M	USD	Point-in-time
Shares in deferred compensation trust (in shares)	`CommonStockHeldInTrustShares`	227,469.00	shares	Point-in-time
Accounts receivable, less allowance for doubtful accounts	`AccountsReceivableNetCurrent`	$427.30M	USD	Point-in-time
Accounts receivable, less allowance for doubtful accounts	`AccountsReceivableNetCurrent`	$473.30M	USD	Point-in-time
Shares in deferred compensation trust (in shares)	`CommonStockHeldInTrustShares`	238,935.00	shares	Point-in-time
Shares in deferred compensation trust, weighted average cost per share (in dollars per share)	`CommonStockHeldInTrustWeightedAverageValuePerShare`	$37.45	USD	Point-in-time
Production fuel, at weighted average cost	`EnergyRelatedInventoryOtherFossilFuel`	$83.80M	USD	Point-in-time
Production fuel, at weighted average cost	`EnergyRelatedInventoryOtherFossilFuel`	$103.60M	USD	Point-in-time
Shares in deferred compensation trust, weighted average cost per share (in dollars per share)	`CommonStockHeldInTrustWeightedAverageValuePerShare`	$35.25	USD	Point-in-time
Materials and supplies, at weighted average cost	`InventoryRawMaterialsAndSupplies`	$69.60M	USD	Point-in-time
Materials and supplies, at weighted average cost	`InventoryRawMaterialsAndSupplies`	$72.90M	USD	Point-in-time
Gas stored underground, at weighted average cost	`EnergyRelatedInventoryGasStoredUnderground`	$67.10M	USD	Point-in-time
Gas stored underground, at weighted average cost	`EnergyRelatedInventoryGasStoredUnderground`	$38.60M	USD	Point-in-time
Regulatory assets	`RegulatoryAssetsCurrent`	$68.10M	USD	Point-in-time
Regulatory assets	`RegulatoryAssetsCurrent`	$53.90M	USD	Point-in-time
Deferred income tax assets	`DeferredTaxAssetsNetCurrent`	$150.10M	USD	Point-in-time
Deferred income tax assets	`DeferredTaxAssetsNetCurrent`	$136.70M	USD	Point-in-time
Other	`OtherAssetsCurrent`	$125.70M	USD	Point-in-time
Other	`OtherAssetsCurrent`	$116.90M	USD	Point-in-time
Total current assets	`AssetsCurrent`	$1.01B	USD	Point-in-time
Total current assets	`AssetsCurrent`	$1.04B	USD	Point-in-time
Property, plant and equipment, net	`PropertyPlantAndEquipmentNet`	$8.33B	USD	Point-in-time
Property, plant and equipment, net	`PropertyPlantAndEquipmentNet`	$8.94B	USD	Point-in-time
Investment in American Transmission Company LLC	`InvestmentsBusinessLine1`	$272.10M	USD	Point-in-time
Investment in American Transmission Company LLC	`InvestmentsBusinessLine1`	$286.50M	USD	Point-in-time
Other	`OtherLongTermInvestmentsAndMarketableSecurities`	$58.40M	USD	Point-in-time
Other	`OtherLongTermInvestmentsAndMarketableSecurities`	$57.50M	USD	Point-in-time
Total investments	`LongTermInvestments`	$344.90M	USD	Point-in-time
Total investments	`LongTermInvestments`	$329.60M	USD	Point-in-time
Regulatory assets	`RegulatoryAssetsNoncurrent`	$1.72B	USD	Point-in-time
Regulatory assets	`RegulatoryAssetsNoncurrent`	$1.36B	USD	Point-in-time
Deferred charges and other	`OtherAssetsNoncurrent`	$43.90M	USD	Point-in-time
Deferred charges and other	`OtherAssetsNoncurrent`	$85.80M	USD	Point-in-time
Total other assets	`DeferredChargesRegulatoryAssetsAndOtherAssetsNoncurrent`	$1.45B	USD	Point-in-time
Total other assets	`DeferredChargesRegulatoryAssetsAndOtherAssetsNoncurrent`	$1.76B	USD	Point-in-time
Total assets	`Assets`	$12.09B	USD	Point-in-time
Total assets	`Assets`	$11.11B	USD	Point-in-time
Total assets	`Assets`	$10.79B	USD	Point-in-time
Current maturities of long-term debt	`LongTermDebtCurrent`	$358.50M	USD	Point-in-time
Current maturities of long-term debt	`LongTermDebtCurrent`	$183.00M	USD	Point-in-time
Commercial paper	`CommercialPaper`	$141.30M	USD	Point-in-time
Commercial paper	`CommercialPaper`	$279.40M	USD	Point-in-time
Accounts payable	`AccountsPayableCurrent`	$427.90M	USD	Point-in-time
Accounts payable	`AccountsPayableCurrent`	$365.00M	USD	Point-in-time
Regulatory liabilities	`RegulatoryLiabilityCurrent`	$200.10M	USD	Point-in-time
Regulatory liabilities	`RegulatoryLiabilityCurrent`	$196.60M	USD	Point-in-time
Other	`OtherLiabilitiesCurrent`	$262.40M	USD	Point-in-time
Other	`OtherLiabilitiesCurrent`	$233.80M	USD	Point-in-time
Total current liabilities	`LiabilitiesCurrent`	$1.21B	USD	Point-in-time
Total current liabilities	`LiabilitiesCurrent`	$1.43B	USD	Point-in-time
Long-term debt, net (excluding current portion)	`LongTermDebtNoncurrent`	$3.61B	USD	Point-in-time
Long-term debt, net (excluding current portion)	`LongTermDebtNoncurrent`	$2.98B	USD	Point-in-time
Deferred income tax liabilities	`DeferredTaxLiabilitiesNoncurrent`	$2.32B	USD	Point-in-time
Deferred income tax liabilities	`DeferredTaxLiabilitiesNoncurrent`	$2.11B	USD	Point-in-time
Regulatory liabilities	`RegulatoryLiabilityNoncurrent`	$624.90M	USD	Point-in-time
Regulatory liabilities	`RegulatoryLiabilityNoncurrent`	$621.10M	USD	Point-in-time
Pension and other benefit obligations	`PensionAndOtherPostretirementDefinedBenefitPlansLiabilitiesNoncurrent`	$421.70M	USD	Point-in-time
Pension and other benefit obligations	`PensionAndOtherPostretirementDefinedBenefitPlansLiabilitiesNoncurrent`	$206.60M	USD	Point-in-time
Other	`OtherLiabilitiesNoncurrent`	$273.90M	USD	Point-in-time
Other	`OtherLiabilitiesNoncurrent`	$260.10M	USD	Point-in-time
Total other liabilities	`DeferredCreditsAndOtherLiabilities`	$3.22B	USD	Point-in-time
Total other liabilities	`DeferredCreditsAndOtherLiabilities`	$3.62B	USD	Point-in-time
Commitments and contingencies (Note 16)	`CommitmentsAndContingencies`	-	USD	Point-in-time
Commitments and contingencies (Note 16)	`CommitmentsAndContingencies`	-	USD	Point-in-time
Common stock	`CommonStockValue`	$1.10M	USD	Point-in-time
Common stock	`CommonStockValue`	$1.10M	USD	Point-in-time
Additional paid-in capital	`AdditionalPaidInCapitalCommonStock`	$1.51B	USD	Point-in-time
Additional paid-in capital	`AdditionalPaidInCapitalCommonStock`	$1.51B	USD	Point-in-time
Retained earnings	`RetainedEarningsAccumulatedDeficit`	$1.94B	USD	Point-in-time
Retained earnings	`RetainedEarningsAccumulatedDeficit`	$1.78B	USD	Point-in-time
Accumulated other comprehensive loss	`AccumulatedOtherComprehensiveIncomeLossNetOfTax`	$-200.00K	USD	Point-in-time
Accumulated other comprehensive loss	`AccumulatedOtherComprehensiveIncomeLossNetOfTax`	$-600.00K	USD	Point-in-time
Shares in deferred compensation trust - 238,935 and 227,469 shares at a weighted average cost of $37.45 and $35.25 per share	`CommonStockHeldInTrust`	$8.00M	USD	Point-in-time
Shares in deferred compensation trust - 238,935 and 227,469 shares at a weighted average cost of $37.45 and $35.25 per share	`CommonStockHeldInTrust`	$8.90M	USD	Point-in-time
Total common equity	`StockholdersEquity`	$3.44B	USD	Point-in-time
Total common equity	`StockholdersEquity`	$3.01B	USD	Point-in-time
Total common equity	`StockholdersEquity`	$3.28B	USD	Point-in-time
Total common equity	`StockholdersEquity`	$3.13B	USD	Point-in-time
Cumulative preferred stock of Interstate Power and Light Company	`MinorityInterestPreferredStockAmount`	$200.00M	USD	Point-in-time
Cumulative preferred stock of Interstate Power and Light Company	`MinorityInterestPreferredStockAmount`	$200.00M	USD	Point-in-time
Noncontrolling interest	`OtherMinorityInterests`	$1.80M	USD	Point-in-time
Noncontrolling interest	`OtherMinorityInterests`	$1.80M	USD	Point-in-time
Total equity	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$3.48B	USD	Point-in-time
Total equity	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$3.64B	USD	Point-in-time
Total liabilities and equity	`LiabilitiesAndStockholdersEquity`	$12.09B	USD	Point-in-time
Total liabilities and equity	`LiabilitiesAndStockholdersEquity`	$11.11B	USD	Point-in-time

Income Statement 150 line items

Line Item	Tag	Value	Unit	Period
Electric	`ElectricDomesticRegulatedRevenue`	$2.59B	USD	Annual
Electric	`ElectricDomesticRegulatedRevenue`	$2.69B	USD	Annual
Electric	`ElectricDomesticRegulatedRevenue`	$2.71B	USD	Annual
Gas	`GasDomesticRegulatedRevenue`	$464.80M	USD	Annual
Gas	`GasDomesticRegulatedRevenue`	$517.50M	USD	Annual
Gas	`GasDomesticRegulatedRevenue`	$396.30M	USD	Annual
Other	`OtherSalesRevenueNet`	$56.70M	USD	Annual
Other	`OtherSalesRevenueNet`	$66.10M	USD	Annual
Other	`OtherSalesRevenueNet`	$71.30M	USD	Annual
Non-regulated	`UnregulatedOperatingRevenue`	$51.70M	USD	Annual
Non-regulated	`UnregulatedOperatingRevenue`	$53.10M	USD	Annual
Non-regulated	`UnregulatedOperatingRevenue`	$52.20M	USD	Annual
Total operating revenues	`Revenues`	$750.30M	USD	1 Quarter
Total operating revenues	`Revenues`	$3.09B	USD	Annual
Total operating revenues	`Revenues`	$952.80M	USD	1 Quarter
Total operating revenues	`Revenues`	$804.10M	USD	1 Quarter
Total operating revenues	`Revenues`	$718.00M	USD	1 Quarter
Total operating revenues	`Revenues`	$832.60M	USD	1 Quarter
Total operating revenues	`Revenues`	$859.60M	USD	1 Quarter
Total operating revenues	`Revenues`	$843.10M	USD	1 Quarter
Total operating revenues	`Revenues`	$3.28B	USD	Annual
Total operating revenues	`Revenues`	$3.35B	USD	Annual
Total operating revenues	`Revenues`	$866.60M	USD	1 Quarter
Electric production fuel and energy purchases	`CostElectricProductionFuelAndEnergyPurchases`	$712.30M	USD	Annual
Electric production fuel and energy purchases	`CostElectricProductionFuelAndEnergyPurchases`	$725.00M	USD	Annual
Electric production fuel and energy purchases	`CostElectricProductionFuelAndEnergyPurchases`	$852.10M	USD	Annual
Purchased electric capacity	`CostPurchasedElectricCapacity`	$25.10M	USD	Annual
Purchased electric capacity	`CostPurchasedElectricCapacity`	$271.50M	USD	Annual
Purchased electric capacity	`CostPurchasedElectricCapacity`	$216.80M	USD	Annual
Electric transmission service	`CostOfTransmission`	$341.30M	USD	Annual
Electric transmission service	`CostOfTransmission`	$447.50M	USD	Annual
Electric transmission service	`CostOfTransmission`	$418.30M	USD	Annual
Cost of gas sold	`CostOfGasSold`	$276.70M	USD	Annual
Cost of gas sold	`CostOfGasSold`	$327.80M	USD	Annual
Cost of gas sold	`CostOfGasSold`	$217.20M	USD	Annual
Other operation and maintenance	`UtilitiesOperatingExpenseMaintenanceAndOperations`	$590.00M	USD	Annual
Other operation and maintenance	`UtilitiesOperatingExpenseMaintenanceAndOperations`	$620.70M	USD	Annual
Other operation and maintenance	`UtilitiesOperatingExpenseMaintenanceAndOperations`	$658.30M	USD	Annual
Non-regulated operation and maintenance	`OtherCostAndExpenseOperating`	$14.90M	USD	Annual
Non-regulated operation and maintenance	`OtherCostAndExpenseOperating`	$6.70M	USD	Annual
Non-regulated operation and maintenance	`OtherCostAndExpenseOperating`	$11.90M	USD	Annual
Depreciation and amortization	`DepreciationAndAmortization`	$332.40M	USD	Annual
Depreciation and amortization	`DepreciationAndAmortization`	$370.90M	USD	Annual
Depreciation and amortization	`DepreciationAndAmortization`	$388.10M	USD	Annual
Taxes other than income taxes	`TaxesExcludingIncomeAndExciseTaxes`	$99.60M	USD	Annual
Taxes other than income taxes	`TaxesExcludingIncomeAndExciseTaxes`	$101.10M	USD	Annual
Taxes other than income taxes	`TaxesExcludingIncomeAndExciseTaxes`	$98.20M	USD	Annual
Total operating expenses	`CostsAndExpenses`	$2.74B	USD	Annual
Total operating expenses	`CostsAndExpenses`	$2.57B	USD	Annual
Total operating expenses	`CostsAndExpenses`	$2.81B	USD	Annual
Operating income (loss)	`OperatingIncomeLoss`	$201.40M	USD	1 Quarter
Operating income (loss)	`OperatingIncomeLoss`	$91.30M	USD	1 Quarter
Operating income (loss)	`OperatingIncomeLoss`	$103.30M	USD	1 Quarter
Operating income (loss)	`OperatingIncomeLoss`	$519.70M	USD	Annual
Operating income (loss)	`OperatingIncomeLoss`	$154.20M	USD	1 Quarter
Operating income (loss)	`OperatingIncomeLoss`	$533.90M	USD	Annual
Operating income (loss)	`OperatingIncomeLoss`	$103.20M	USD	1 Quarter
Operating income (loss)	`OperatingIncomeLoss`	$120.70M	USD	1 Quarter
Operating income (loss)	`OperatingIncomeLoss`	$194.80M	USD	1 Quarter
Operating income (loss)	`OperatingIncomeLoss`	$108.60M	USD	1 Quarter
Operating income (loss)	`OperatingIncomeLoss`	$543.60M	USD	Annual
Interest expense	`InterestExpense`	$172.80M	USD	Annual
Interest expense	`InterestExpense`	$180.60M	USD	Annual
Interest expense	`InterestExpense`	$156.70M	USD	Annual
Equity (income) loss from unconsolidated investments, net	`IncomeLossFromEquityMethodInvestments`	$41.30M	USD	Annual
Equity (income) loss from unconsolidated investments, net	`IncomeLossFromEquityMethodInvestments`	$40.40M	USD	Annual
Equity (income) loss from unconsolidated investments, net	`IncomeLossFromEquityMethodInvestments`	$43.70M	USD	Annual
Allowance for funds used during construction	`PublicUtilitiesAllowanceForFundsUsedDuringConstructionAdditions`	$30.80M	USD	Annual
Allowance for funds used during construction	`PublicUtilitiesAllowanceForFundsUsedDuringConstructionAdditions`	$34.80M	USD	Annual
Allowance for funds used during construction	`PublicUtilitiesAllowanceForFundsUsedDuringConstructionAdditions`	$21.90M	USD	Annual
Interest income and other	`OtherNonoperatingIncomeExpense`	$4.00M	USD	Annual
Interest income and other	`OtherNonoperatingIncomeExpense`	$400.00K	USD	Annual
Interest income and other	`OtherNonoperatingIncomeExpense`	$1.80M	USD	Annual
Total interest expense and other	`NonoperatingIncomeExpense`	$-97.90M	USD	Annual
Total interest expense and other	`NonoperatingIncomeExpense`	$-103.60M	USD	Annual
Total interest expense and other	`NonoperatingIncomeExpense`	$-89.50M	USD	Annual
Income from continuing operations before income taxes	`IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest`	$436.00M	USD	Annual
Income from continuing operations before income taxes	`IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest`	$440.00M	USD	Annual
Income from continuing operations before income taxes	`IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest`	$430.20M	USD	Annual
Income tax expense (benefit)	`IncomeTaxExpenseBenefit`	$89.40M	USD	Annual
Income tax expense (benefit)	`IncomeTaxExpenseBenefit`	$44.30M	USD	Annual
Income tax expense (benefit)	`IncomeTaxExpenseBenefit`	$53.90M	USD	Annual
Income from continuing operations, net of tax	`IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest`	$340.80M	USD	Annual
Income from continuing operations, net of tax	`IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest`	$382.10M	USD	Annual
Income from continuing operations, net of tax	`IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest`	$395.70M	USD	Annual
Loss from discontinued operations, net of tax	`IncomeLossFromDiscontinuedOperationsNetOfTax`	$-2.40M	USD	Annual
Loss from discontinued operations, net of tax	`IncomeLossFromDiscontinuedOperationsNetOfTax`	$-5.10M	USD	Annual
Loss from discontinued operations, net of tax	`IncomeLossFromDiscontinuedOperationsNetOfTax`	$-5.90M	USD	Annual
Net income	`NetIncomeLoss`	$376.20M	USD	Annual
Net income	`NetIncomeLoss`	$335.70M	USD	Annual
Net income	`NetIncomeLoss`	$393.30M	USD	Annual
Preferred dividend requirements of subsidiaries	`DividendsPreferredStock`	$10.20M	USD	Annual
Preferred dividend requirements of subsidiaries	`DividendsPreferredStock`	$17.90M	USD	Annual
Preferred dividend requirements of subsidiaries	`DividendsPreferredStock`	$15.90M	USD	Annual
Net income (loss) attributable to common shareowners	`NetIncomeLossAvailableToCommonStockholdersBasic`	$358.30M	USD	Annual
Net income (loss) attributable to common shareowners	`NetIncomeLossAvailableToCommonStockholdersBasic`	$153.30M	USD	1 Quarter
Net income (loss) attributable to common shareowners	`NetIncomeLossAvailableToCommonStockholdersBasic`	$319.80M	USD	Annual
Net income (loss) attributable to common shareowners	`NetIncomeLossAvailableToCommonStockholdersBasic`	$60.00M	USD	1 Quarter
Net income (loss) attributable to common shareowners	`NetIncomeLossAvailableToCommonStockholdersBasic`	$65.30M	USD	1 Quarter
Net income (loss) attributable to common shareowners	`NetIncomeLossAvailableToCommonStockholdersBasic`	$61.80M	USD	1 Quarter
Net income (loss) attributable to common shareowners	`NetIncomeLossAvailableToCommonStockholdersBasic`	$69.90M	USD	1 Quarter
Net income (loss) attributable to common shareowners	`NetIncomeLossAvailableToCommonStockholdersBasic`	$157.60M	USD	1 Quarter
Net income (loss) attributable to common shareowners	`NetIncomeLossAvailableToCommonStockholdersBasic`	$383.10M	USD	Annual
Net income (loss) attributable to common shareowners	`NetIncomeLossAvailableToCommonStockholdersBasic`	$108.00M	USD	1 Quarter
Net income (loss) attributable to common shareowners	`NetIncomeLossAvailableToCommonStockholdersBasic`	$65.50M	USD	1 Quarter
Weighted average number of common shares outstanding (basic and diluted) (in shares)	`WeightedAverageNumberOfShareOutstandingBasicAndDiluted`	110.80M	shares	Annual
Weighted average number of common shares outstanding (basic and diluted) (in shares)	`WeightedAverageNumberOfShareOutstandingBasicAndDiluted`	110.80M	shares	Annual
Weighted average number of common shares outstanding (basic and diluted) (in shares)	`WeightedAverageNumberOfShareOutstandingBasicAndDiluted`	110.80M	shares	Annual
Income from continuing operations, net of tax (in dollars per share)	`IncomeLossFromContinuingOperationsPerBasicAndDilutedShare`	$2.93	USD	Annual
Income from continuing operations, net of tax (in dollars per share)	`IncomeLossFromContinuingOperationsPerBasicAndDilutedShare`	$3.48	USD	Annual
Income from continuing operations, net of tax (in dollars per share)	`IncomeLossFromContinuingOperationsPerBasicAndDilutedShare`	$3.29	USD	Annual
Loss from discontinued operations, net of tax (in dollars per share)	`IncomeLossFromDiscontinuedOperationsNetOfTaxPerBasicAndDilutedShare`	$-0.04	USD	Annual
Loss from discontinued operations, net of tax (in dollars per share)	`IncomeLossFromDiscontinuedOperationsNetOfTaxPerBasicAndDilutedShare`	$-0.06	USD	Annual
Loss from discontinued operations, net of tax (in dollars per share)	`IncomeLossFromDiscontinuedOperationsNetOfTaxPerBasicAndDilutedShare`	$-0.02	USD	Annual
Net income (in dollars per share)	`EarningsPerShareBasicAndDiluted`	$2.89	USD	Annual
Net income (in dollars per share)	`EarningsPerShareBasicAndDiluted`	$3.23	USD	Annual
Net income (in dollars per share)	`EarningsPerShareBasicAndDiluted`	$3.46	USD	Annual
Income from continuing operations, net of tax	`IncomeLossFromContinuingOperations`	$66.50M	USD	1 Quarter
Income from continuing operations, net of tax	`IncomeLossFromContinuingOperations`	$155.20M	USD	1 Quarter
Income from continuing operations, net of tax	`IncomeLossFromContinuingOperations`	$62.10M	USD	1 Quarter
Income from continuing operations, net of tax	`IncomeLossFromContinuingOperations`	$108.00M	USD	1 Quarter
Income from continuing operations, net of tax	`IncomeLossFromContinuingOperations`	$385.50M	USD	Annual
Income from continuing operations, net of tax	`IncomeLossFromContinuingOperations`	$364.20M	USD	Annual
Income from continuing operations, net of tax	`IncomeLossFromContinuingOperations`	$72.90M	USD	1 Quarter
Income from continuing operations, net of tax	`IncomeLossFromContinuingOperations`	$158.90M	USD	1 Quarter
Income from continuing operations, net of tax	`IncomeLossFromContinuingOperations`	$60.20M	USD	1 Quarter
Income from continuing operations, net of tax	`IncomeLossFromContinuingOperations`	$65.90M	USD	1 Quarter
Income from continuing operations, net of tax	`IncomeLossFromContinuingOperations`	$324.90M	USD	Annual
Loss from discontinued operations, net of tax	`IncomeLossFromDiscontinuedOperationsNetOfTaxAttributableToReportingEntity`	$-1.90M	USD	1 Quarter
Loss from discontinued operations, net of tax	`IncomeLossFromDiscontinuedOperationsNetOfTaxAttributableToReportingEntity`	-	USD	1 Quarter
Loss from discontinued operations, net of tax	`IncomeLossFromDiscontinuedOperationsNetOfTaxAttributableToReportingEntity`	$-5.90M	USD	Annual
Loss from discontinued operations, net of tax	`IncomeLossFromDiscontinuedOperationsNetOfTaxAttributableToReportingEntity`	$-200.00K	USD	1 Quarter
Loss from discontinued operations, net of tax	`IncomeLossFromDiscontinuedOperationsNetOfTaxAttributableToReportingEntity`	$-3.00M	USD	1 Quarter
Loss from discontinued operations, net of tax	`IncomeLossFromDiscontinuedOperationsNetOfTaxAttributableToReportingEntity`	$-1.00M	USD	1 Quarter
Loss from discontinued operations, net of tax	`IncomeLossFromDiscontinuedOperationsNetOfTaxAttributableToReportingEntity`	$-1.30M	USD	1 Quarter
Loss from discontinued operations, net of tax	`IncomeLossFromDiscontinuedOperationsNetOfTaxAttributableToReportingEntity`	$-600.00K	USD	1 Quarter
Loss from discontinued operations, net of tax	`IncomeLossFromDiscontinuedOperationsNetOfTaxAttributableToReportingEntity`	$-2.40M	USD	Annual
Loss from discontinued operations, net of tax	`IncomeLossFromDiscontinuedOperationsNetOfTaxAttributableToReportingEntity`	$-5.10M	USD	Annual
Loss from discontinued operations, net of tax	`IncomeLossFromDiscontinuedOperationsNetOfTaxAttributableToReportingEntity`	$-300.00K	USD	1 Quarter
Net income (loss) attributable to common shareowners	`NetIncomeLossAvailableToCommonStockholdersBasic`	$358.30M	USD	Annual
Net income (loss) attributable to common shareowners	`NetIncomeLossAvailableToCommonStockholdersBasic`	$153.30M	USD	1 Quarter
Net income (loss) attributable to common shareowners	`NetIncomeLossAvailableToCommonStockholdersBasic`	$319.80M	USD	Annual
Net income (loss) attributable to common shareowners	`NetIncomeLossAvailableToCommonStockholdersBasic`	$60.00M	USD	1 Quarter
Net income (loss) attributable to common shareowners	`NetIncomeLossAvailableToCommonStockholdersBasic`	$65.30M	USD	1 Quarter
Net income (loss) attributable to common shareowners	`NetIncomeLossAvailableToCommonStockholdersBasic`	$61.80M	USD	1 Quarter
Net income (loss) attributable to common shareowners	`NetIncomeLossAvailableToCommonStockholdersBasic`	$69.90M	USD	1 Quarter
Net income (loss) attributable to common shareowners	`NetIncomeLossAvailableToCommonStockholdersBasic`	$157.60M	USD	1 Quarter
Net income (loss) attributable to common shareowners	`NetIncomeLossAvailableToCommonStockholdersBasic`	$383.10M	USD	Annual
Net income (loss) attributable to common shareowners	`NetIncomeLossAvailableToCommonStockholdersBasic`	$108.00M	USD	1 Quarter
Net income (loss) attributable to common shareowners	`NetIncomeLossAvailableToCommonStockholdersBasic`	$65.50M	USD	1 Quarter

Cash Flow Statement 113 line items

Line Item	Tag	Value	Unit	Period
Net income	`NetIncomeLoss`	$376.20M	USD	Annual
Net income	`NetIncomeLoss`	$335.70M	USD	Annual
Net income	`NetIncomeLoss`	$393.30M	USD	Annual
Depreciation and amortization	`AdjustmentDepreciationAndAmortizationIncludingDiscontinuedOperations`	$388.10M	USD	Annual
Depreciation and amortization	`AdjustmentDepreciationAndAmortizationIncludingDiscontinuedOperations`	$332.90M	USD	Annual
Depreciation and amortization	`AdjustmentDepreciationAndAmortizationIncludingDiscontinuedOperations`	$370.90M	USD	Annual
Other amortizations	`OtherAmortizationOfDeferredCharges`	$55.00M	USD	Annual
Other amortizations	`OtherAmortizationOfDeferredCharges`	$40.20M	USD	Annual
Other amortizations	`OtherAmortizationOfDeferredCharges`	$54.20M	USD	Annual
Deferred tax expense (benefit) and investment tax credits	`DeferredIncomeTaxesAndTaxCredits`	$55.20M	USD	Annual
Deferred tax expense (benefit) and investment tax credits	`DeferredIncomeTaxesAndTaxCredits`	$143.30M	USD	Annual
Deferred tax expense (benefit) and investment tax credits	`DeferredIncomeTaxesAndTaxCredits`	$108.30M	USD	Annual
Equity (income) loss from unconsolidated investments, net	`IncomeLossFromEquityMethodInvestments`	$41.30M	USD	Annual
Equity (income) loss from unconsolidated investments, net	`IncomeLossFromEquityMethodInvestments`	$40.40M	USD	Annual
Equity (income) loss from unconsolidated investments, net	`IncomeLossFromEquityMethodInvestments`	$43.70M	USD	Annual
Distributions from equity method investments	`EquityMethodInvestmentDividendsOrDistributions`	$34.20M	USD	Annual
Distributions from equity method investments	`EquityMethodInvestmentDividendsOrDistributions`	$35.40M	USD	Annual
Distributions from equity method investments	`EquityMethodInvestmentDividendsOrDistributions`	$36.40M	USD	Annual
Equity component of allowance for funds used during construction	`IncreaseDecreaseInAllowanceForEquityFundsUsedDuringConstruction`	$14.10M	USD	Annual
Equity component of allowance for funds used during construction	`IncreaseDecreaseInAllowanceForEquityFundsUsedDuringConstruction`	$23.10M	USD	Annual
Equity component of allowance for funds used during construction	`IncreaseDecreaseInAllowanceForEquityFundsUsedDuringConstruction`	$20.30M	USD	Annual
Other	`OtherNoncashIncomeExpense`	$-700.00K	USD	Annual
Other	`OtherNoncashIncomeExpense`	$3.70M	USD	Annual
Other	`OtherNoncashIncomeExpense`	$-2.00M	USD	Annual
Accounts receivable	`IncreaseDecreaseInAccountsReceivable`	$-48.70M	USD	Annual
Accounts receivable	`IncreaseDecreaseInAccountsReceivable`	$-61.30M	USD	Annual
Accounts receivable	`IncreaseDecreaseInAccountsReceivable`	$49.20M	USD	Annual
Sales of accounts receivable	`IncreaseDecreaseInOtherReceivables`	$7.00M	USD	Annual
Sales of accounts receivable	`IncreaseDecreaseInOtherReceivables`	$101.00M	USD	Annual
Sales of accounts receivable	`IncreaseDecreaseInOtherReceivables`	$10.00M	USD	Annual
Regulatory assets	`IncreaseDecreaseInOtherRegulatoryAssets`	$178.10M	USD	Annual
Regulatory assets	`IncreaseDecreaseInOtherRegulatoryAssets`	$439.80M	USD	Annual
Regulatory assets	`IncreaseDecreaseInOtherRegulatoryAssets`	$-140.50M	USD	Annual
Regulatory liabilities	`IncreaseDecreaseInRegulatoryLiabilities`	$-90.80M	USD	Annual
Regulatory liabilities	`IncreaseDecreaseInRegulatoryLiabilities`	$16.40M	USD	Annual
Regulatory liabilities	`IncreaseDecreaseInRegulatoryLiabilities`	$10.80M	USD	Annual
Deferred income taxes	`IncreaseDecreaseInDeferredIncomeTaxes`	$-101.90M	USD	Annual
Deferred income taxes	`IncreaseDecreaseInDeferredIncomeTaxes`	$-138.40M	USD	Annual
Deferred income taxes	`IncreaseDecreaseInDeferredIncomeTaxes`	$-69.70M	USD	Annual
Pension and other benefit obligations	`IncreaseDecreaseInPensionAndPostretirementObligations`	$-157.40M	USD	Annual
Pension and other benefit obligations	`IncreaseDecreaseInPensionAndPostretirementObligations`	$51.30M	USD	Annual
Pension and other benefit obligations	`IncreaseDecreaseInPensionAndPostretirementObligations`	$215.10M	USD	Annual
Other	`IncreaseDecreaseInOtherOperatingCapitalNet`	$15.90M	USD	Annual
Other	`IncreaseDecreaseInOtherOperatingCapitalNet`	$-23.70M	USD	Annual
Other	`IncreaseDecreaseInOtherOperatingCapitalNet`	$-59.70M	USD	Annual
Net cash flows from operating activities	`NetCashProvidedByUsedInOperatingActivities`	$891.60M	USD	Annual
Net cash flows from operating activities	`NetCashProvidedByUsedInOperatingActivities`	$731.00M	USD	Annual
Net cash flows from operating activities	`NetCashProvidedByUsedInOperatingActivities`	$841.10M	USD	Annual
Utility business - purchase of Riverside Energy Center	`PaymentsToAcquireProductiveAssetsBusinessLine1`	$403.50M	USD	Annual
Utility business - purchase of Riverside Energy Center	`PaymentsToAcquireProductiveAssetsBusinessLine1`	-	USD	Annual
Utility business - purchase of Riverside Energy Center	`PaymentsToAcquireProductiveAssetsBusinessLine1`	-	USD	Annual
Utility business - other	`PaymentsToAcquireProductiveAssetsOther`	$838.90M	USD	Annual
Utility business - other	`PaymentsToAcquireProductiveAssetsOther`	$622.00M	USD	Annual
Utility business - other	`PaymentsToAcquireProductiveAssetsOther`	$731.60M	USD	Annual
Alliant Energy Corporate Services, Inc. and non-regulated businesses	`PaymentsToAcquireProductiveAssetsBusinessLine2`	$63.90M	USD	Annual
Alliant Energy Corporate Services, Inc. and non-regulated businesses	`PaymentsToAcquireProductiveAssetsBusinessLine2`	$132.60M	USD	Annual
Alliant Energy Corporate Services, Inc. and non-regulated businesses	`PaymentsToAcquireProductiveAssetsBusinessLine2`	$66.70M	USD	Annual
Proceeds from Franklin County wind project cash grant	`ProceedsFromCashGrant`	$62.40M	USD	Annual
Proceeds from Franklin County wind project cash grant	`ProceedsFromCashGrant`	-	USD	Annual
Proceeds from Franklin County wind project cash grant	`ProceedsFromCashGrant`	-	USD	Annual
Other	`PaymentsForProceedsFromOtherInvestingActivities`	$18.80M	USD	Annual
Other	`PaymentsForProceedsFromOtherInvestingActivities`	$-2.60M	USD	Annual
Other	`PaymentsForProceedsFromOtherInvestingActivities`	$14.90M	USD	Annual
Net cash flows used for investing activities	`NetCashProvidedByUsedInInvestingActivities`	$-917.70M	USD	Annual
Net cash flows used for investing activities	`NetCashProvidedByUsedInInvestingActivities`	$-1.16B	USD	Annual
Net cash flows used for investing activities	`NetCashProvidedByUsedInInvestingActivities`	$-754.70M	USD	Annual
Common stock dividends	`PaymentsOfDividendsCommonStock`	$208.30M	USD	Annual
Common stock dividends	`PaymentsOfDividendsCommonStock`	$199.30M	USD	Annual
Common stock dividends	`PaymentsOfDividendsCommonStock`	$225.80M	USD	Annual
Preferred dividends paid by subsidiaries	`PaymentsOfDividendsPreferredStockAndPreferenceStock`	$11.40M	USD	Annual
Preferred dividends paid by subsidiaries	`PaymentsOfDividendsPreferredStockAndPreferenceStock`	$10.20M	USD	Annual
Preferred dividends paid by subsidiaries	`PaymentsOfDividendsPreferredStockAndPreferenceStock`	$15.90M	USD	Annual
Payments to redeem cumulative preferred stock	`PaymentsForRepurchaseOfRedeemablePreferredStock`	$211.00M	USD	Annual
Payments to redeem cumulative preferred stock	`PaymentsForRepurchaseOfRedeemablePreferredStock`	-	USD	Annual
Payments to redeem cumulative preferred stock	`PaymentsForRepurchaseOfRedeemablePreferredStock`	-	USD	Annual
Proceeds from issuance of cumulative preferred stock of IPL	`ProceedsFromIssuanceOfRedeemablePreferredStock`	$200.00M	USD	Annual
Proceeds from issuance of cumulative preferred stock of IPL	`ProceedsFromIssuanceOfRedeemablePreferredStock`	-	USD	Annual
Proceeds from issuance of cumulative preferred stock of IPL	`ProceedsFromIssuanceOfRedeemablePreferredStock`	-	USD	Annual
Proceeds from issuance of long-term debt	`ProceedsFromIssuanceOfLongTermDebt`	$812.90M	USD	Annual
Proceeds from issuance of long-term debt	`ProceedsFromIssuanceOfLongTermDebt`	$250.00M	USD	Annual
Proceeds from issuance of long-term debt	`ProceedsFromIssuanceOfLongTermDebt`	$385.00M	USD	Annual
Payments to retire long-term debt	`RepaymentsOfLongTermDebt`	$1.40M	USD	Annual
Payments to retire long-term debt	`RepaymentsOfLongTermDebt`	$1.50M	USD	Annual
Payments to retire long-term debt	`RepaymentsOfLongTermDebt`	$358.50M	USD	Annual
Net change in commercial paper	`ProceedsFromRepaymentsOfShortTermDebt`	$-138.10M	USD	Annual
Net change in commercial paper	`ProceedsFromRepaymentsOfShortTermDebt`	$11.90M	USD	Annual
Net change in commercial paper	`ProceedsFromRepaymentsOfShortTermDebt`	$164.70M	USD	Annual
Other	`ProceedsFromPaymentsForOtherFinancingActivities`	$-7.10M	USD	Annual
Other	`ProceedsFromPaymentsForOtherFinancingActivities`	$-17.40M	USD	Annual
Other	`ProceedsFromPaymentsForOtherFinancingActivities`	$-8.90M	USD	Annual
Net cash flows from (used for) financing activities	`NetCashProvidedByUsedInFinancingActivities`	$73.20M	USD	Annual
Net cash flows from (used for) financing activities	`NetCashProvidedByUsedInFinancingActivities`	$324.20M	USD	Annual
Net cash flows from (used for) financing activities	`NetCashProvidedByUsedInFinancingActivities`	$12.30M	USD	Annual
Net increase (decrease) in cash and cash equivalents	`CashAndCashEquivalentsPeriodIncreaseDecrease`	$-11.40M	USD	Annual
Net increase (decrease) in cash and cash equivalents	`CashAndCashEquivalentsPeriodIncreaseDecrease`	$47.10M	USD	Annual
Net increase (decrease) in cash and cash equivalents	`CashAndCashEquivalentsPeriodIncreaseDecrease`	$9.80M	USD	Annual
Cash and cash equivalents at beginning of period	`CashAndCashEquivalentsAtCarryingValue`	$21.20M	USD	Point-in-time
Cash and cash equivalents at beginning of period	`CashAndCashEquivalentsAtCarryingValue`	$9.80M	USD	Point-in-time
Cash and cash equivalents at beginning of period	`CashAndCashEquivalentsAtCarryingValue`	$11.40M	USD	Point-in-time
Cash and cash equivalents at beginning of period	`CashAndCashEquivalentsAtCarryingValue`	$56.90M	USD	Point-in-time
Cash and cash equivalents at end of period	`CashAndCashEquivalentsAtCarryingValue`	$21.20M	USD	Point-in-time
Cash and cash equivalents at end of period	`CashAndCashEquivalentsAtCarryingValue`	$9.80M	USD	Point-in-time
Cash and cash equivalents at end of period	`CashAndCashEquivalentsAtCarryingValue`	$11.40M	USD	Point-in-time
Cash and cash equivalents at end of period	`CashAndCashEquivalentsAtCarryingValue`	$56.90M	USD	Point-in-time
Interest, net of capitalized interest	`InterestPaidNet`	$155.20M	USD	Annual
Interest, net of capitalized interest	`InterestPaidNet`	$180.80M	USD	Annual
Interest, net of capitalized interest	`InterestPaidNet`	$171.70M	USD	Annual
Income taxes, net	`IncomeTaxesPaidNet`	$-9.60M	USD	Annual
Income taxes, net	`IncomeTaxesPaidNet`	$-5.30M	USD	Annual
Income taxes, net	`IncomeTaxesPaidNet`	$-20.30M	USD	Annual
Accrued capital expenditures	`CapitalExpendituresIncurredButNotYetPaid`	$160.30M	USD	Annual
Accrued capital expenditures	`CapitalExpendituresIncurredButNotYetPaid`	$103.80M	USD	Annual
Accrued capital expenditures	`CapitalExpendituresIncurredButNotYetPaid`	$105.30M	USD	Annual

Stockholders Equity 39 line items

Line Item	Tag	Value	Unit	Period
Common stock dividends (in dollars per share)	`CommonStockDividendsPerShareCashPaid`	$2.04	USD	Annual
Common stock dividends (in dollars per share)	`CommonStockDividendsPerShareCashPaid`	$1.80	USD	Annual
Common stock dividends (in dollars per share)	`CommonStockDividendsPerShareCashPaid`	$1.88	USD	Annual
Beginning balance	`StockholdersEquity`	$3.44B	USD	Point-in-time
Beginning balance	`StockholdersEquity`	$3.01B	USD	Point-in-time
Beginning balance	`StockholdersEquity`	$3.28B	USD	Point-in-time
Beginning balance	`StockholdersEquity`	$3.13B	USD	Point-in-time
Beginning balance	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$3.48B	USD	Point-in-time
Beginning balance	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$3.64B	USD	Point-in-time
Net income (loss) attributable to common shareowners	`NetIncomeLossAvailableToCommonStockholdersBasic`	$358.30M	USD	Annual
Net income (loss) attributable to common shareowners	`NetIncomeLossAvailableToCommonStockholdersBasic`	$153.30M	USD	1 Quarter
Net income (loss) attributable to common shareowners	`NetIncomeLossAvailableToCommonStockholdersBasic`	$319.80M	USD	Annual
Net income (loss) attributable to common shareowners	`NetIncomeLossAvailableToCommonStockholdersBasic`	$60.00M	USD	1 Quarter
Net income (loss) attributable to common shareowners	`NetIncomeLossAvailableToCommonStockholdersBasic`	$65.30M	USD	1 Quarter
Net income (loss) attributable to common shareowners	`NetIncomeLossAvailableToCommonStockholdersBasic`	$61.80M	USD	1 Quarter
Net income (loss) attributable to common shareowners	`NetIncomeLossAvailableToCommonStockholdersBasic`	$69.90M	USD	1 Quarter
Net income (loss) attributable to common shareowners	`NetIncomeLossAvailableToCommonStockholdersBasic`	$157.60M	USD	1 Quarter
Net income (loss) attributable to common shareowners	`NetIncomeLossAvailableToCommonStockholdersBasic`	$383.10M	USD	Annual
Net income (loss) attributable to common shareowners	`NetIncomeLossAvailableToCommonStockholdersBasic`	$108.00M	USD	1 Quarter
Net income (loss) attributable to common shareowners	`NetIncomeLossAvailableToCommonStockholdersBasic`	$65.50M	USD	1 Quarter
Net income	`NetIncomeLoss`	$376.20M	USD	Annual
Net income	`NetIncomeLoss`	$335.70M	USD	Annual
Net income	`NetIncomeLoss`	$393.30M	USD	Annual
Common stock dividends	`DividendsCommonStock`	$199.30M	USD	Annual
Common stock dividends	`DividendsCommonStock`	$225.80M	USD	Annual
Common stock dividends	`DividendsCommonStock`	$208.30M	USD	Annual
Preferred stock issuance costs	`AdjustmentsToAdditionalPaidInCapitalStockIssuedIssuanceCosts`	$-5.40M	USD	Annual
Other	`StockholdersEquityOther`	$-1.40M	USD	Annual
Other	`StockholdersEquityOther`	$-400.00K	USD	Annual
Other	`StockholdersEquityOther`	$-1.30M	USD	Annual
Other comprehensive income, net of tax	`OtherComprehensiveIncomeLossNetOfTax`	$600.00K	USD	Annual
Other comprehensive income, net of tax	`OtherComprehensiveIncomeLossNetOfTax`	-	USD	Annual
Other comprehensive income, net of tax	`OtherComprehensiveIncomeLossNetOfTax`	$-400.00K	USD	Annual
Ending balance	`StockholdersEquity`	$3.44B	USD	Point-in-time
Ending balance	`StockholdersEquity`	$3.01B	USD	Point-in-time
Ending balance	`StockholdersEquity`	$3.28B	USD	Point-in-time
Ending balance	`StockholdersEquity`	$3.13B	USD	Point-in-time
Ending balance	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$3.48B	USD	Point-in-time
Ending balance	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$3.64B	USD	Point-in-time

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