10-Q Filing

ALLIANT ENERGY CORP CIK: 352541 Q3 2017

Filing Information

Form Type	10-Q
Accession Number	`0000352541-17-000103`
Period End Date	20170930
Filing Date	20171103
Fiscal Year	2017
Fiscal Period	Q3
XBRL Instance	lnt-20170930.xml

Filing Contents

This filing contains the following financial statements:

Balance Sheet 92 Income Statement 136 Cash Flow Statement 64

Balance Sheet 92 line items

Line Item	Tag	Value	Unit	Period
Common stock, par value	`CommonStockParOrStatedValuePerShare`	$0.01	USD	Point-in-time
Common stock, par value	`CommonStockParOrStatedValuePerShare`	$0.01	USD	Point-in-time
Common stock, shares authorized (in shares)	`CommonStockSharesAuthorized`	480.00M	shares	Point-in-time
Common stock, shares authorized (in shares)	`CommonStockSharesAuthorized`	480.00M	shares	Point-in-time
Cash and cash equivalents	`CashAndCashEquivalentsAtCarryingValue`	$9.20M	USD	Point-in-time
Cash and cash equivalents	`CashAndCashEquivalentsAtCarryingValue`	$5.80M	USD	Point-in-time
Cash and cash equivalents	`CashAndCashEquivalentsAtCarryingValue`	$8.20M	USD	Point-in-time
Cash and cash equivalents	`CashAndCashEquivalentsAtCarryingValue`	$84.70M	USD	Point-in-time
Common stock, shares outstanding (in shares)	`CommonStockSharesOutstanding`	227.67M	shares	Point-in-time
Common stock, shares outstanding (in shares)	`CommonStockSharesOutstanding`	231.20M	shares	Point-in-time
Shares in deferred compensation trust (in shares)	`CommonStockHeldInTrustShares`	454,532.00	shares	Point-in-time
Accounts receivable, less allowance for doubtful accounts	`AccountsReceivableNetCurrent`	$336.10M	USD	Point-in-time
Accounts receivable, less allowance for doubtful accounts	`AccountsReceivableNetCurrent`	$493.30M	USD	Point-in-time
Shares in deferred compensation trust (in shares)	`CommonStockHeldInTrustShares`	441,695.00	shares	Point-in-time
Shares in deferred compensation trust, weighted average cost per share (in dollars per share)	`CommonStockHeldInTrustWeightedAverageValuePerShare`	$22.71	USD	Point-in-time
Production fuel, at weighted average cost	`EnergyRelatedInventoryOtherFossilFuel`	$80.90M	USD	Point-in-time
Shares in deferred compensation trust, weighted average cost per share (in dollars per share)	`CommonStockHeldInTrustWeightedAverageValuePerShare`	$23.52	USD	Point-in-time
Production fuel, at weighted average cost	`EnergyRelatedInventoryOtherFossilFuel`	$98.10M	USD	Point-in-time
Gas stored underground, at weighted average cost	`EnergyRelatedInventoryGasStoredUnderground`	$40.60M	USD	Point-in-time
Gas stored underground, at weighted average cost	`EnergyRelatedInventoryGasStoredUnderground`	$37.60M	USD	Point-in-time
Materials and supplies, at weighted average cost	`InventoryRawMaterialsAndSupplies`	$99.10M	USD	Point-in-time
Materials and supplies, at weighted average cost	`InventoryRawMaterialsAndSupplies`	$86.60M	USD	Point-in-time
Regulatory assets	`RegulatoryAssetsCurrent`	$84.20M	USD	Point-in-time
Regulatory assets	`RegulatoryAssetsCurrent`	$57.80M	USD	Point-in-time
Other	`OtherAssetsCurrent`	$101.40M	USD	Point-in-time
Other	`OtherAssetsCurrent`	$95.50M	USD	Point-in-time
Total current assets	`AssetsCurrent`	$751.50M	USD	Point-in-time
Total current assets	`AssetsCurrent`	$877.10M	USD	Point-in-time
Property, plant and equipment, net	`PropertyPlantAndEquipmentNet`	$10.28B	USD	Point-in-time
Property, plant and equipment, net	`PropertyPlantAndEquipmentNet`	$10.93B	USD	Point-in-time
ATC Investment	`InvestmentsBusinessLine1`	$317.60M	USD	Point-in-time
ATC Investment	`InvestmentsBusinessLine1`	$339.20M	USD	Point-in-time
Other	`OtherLongTermInvestments`	$20.00M	USD	Point-in-time
Other	`OtherLongTermInvestments`	$119.40M	USD	Point-in-time
Total investments	`LongTermInvestments`	$337.60M	USD	Point-in-time
Total investments	`LongTermInvestments`	$458.60M	USD	Point-in-time
Regulatory assets	`RegulatoryAssetsNoncurrent`	$1.86B	USD	Point-in-time
Regulatory assets	`RegulatoryAssetsNoncurrent`	$1.95B	USD	Point-in-time
Deferred charges and other	`OtherAssetsNoncurrent`	$21.40M	USD	Point-in-time
Deferred charges and other	`OtherAssetsNoncurrent`	$22.60M	USD	Point-in-time
Total other assets	`AssetsNoncurrent`	$1.97B	USD	Point-in-time
Total other assets	`AssetsNoncurrent`	$1.88B	USD	Point-in-time
Total assets	`Assets`	$14.11B	USD	Point-in-time
Total assets	`Assets`	$13.37B	USD	Point-in-time
Current maturities of long-term debt	`LongTermDebtCurrent`	$4.60M	USD	Point-in-time
Current maturities of long-term debt	`LongTermDebtCurrent`	$105.20M	USD	Point-in-time
Commercial paper	`CommercialPaper`	$390.30M	USD	Point-in-time
Commercial paper	`CommercialPaper`	$244.10M	USD	Point-in-time
Other short-term borrowings	`OtherShortTermBorrowings`	-	USD	Point-in-time
Other short-term borrowings	`OtherShortTermBorrowings`	$95.00M	USD	Point-in-time
Accounts payable	`AccountsPayableCurrent`	$478.10M	USD	Point-in-time
Accounts payable	`AccountsPayableCurrent`	$445.30M	USD	Point-in-time
Regulatory liabilities	`RegulatoryLiabilityCurrent`	$145.10M	USD	Point-in-time
Regulatory liabilities	`RegulatoryLiabilityCurrent`	$186.20M	USD	Point-in-time
Accrued taxes	`TaxesPayableCurrent`	$59.50M	USD	Point-in-time
Accrued taxes	`TaxesPayableCurrent`	$39.40M	USD	Point-in-time
Other	`OtherLiabilitiesCurrent`	$222.30M	USD	Point-in-time
Other	`OtherLiabilitiesCurrent`	$217.00M	USD	Point-in-time
Total current liabilities	`LiabilitiesCurrent`	$1.16B	USD	Point-in-time
Total current liabilities	`LiabilitiesCurrent`	$1.47B	USD	Point-in-time
Long-term debt, net (excluding current portion)	`LongTermDebtNoncurrent`	$4.32B	USD	Point-in-time
Long-term debt, net (excluding current portion)	`LongTermDebtNoncurrent`	$4.26B	USD	Point-in-time
Deferred tax liabilities	`DeferredTaxLiabilitiesNoncurrent`	$2.57B	USD	Point-in-time
Deferred tax liabilities	`DeferredTaxLiabilitiesNoncurrent`	$2.77B	USD	Point-in-time
Regulatory liabilities	`RegulatoryLiabilityNoncurrent`	$494.80M	USD	Point-in-time
Regulatory liabilities	`RegulatoryLiabilityNoncurrent`	$483.40M	USD	Point-in-time
Pension and other benefit obligations	`PensionAndOtherPostretirementDefinedBenefitPlansLiabilitiesNoncurrent`	$489.90M	USD	Point-in-time
Pension and other benefit obligations	`PensionAndOtherPostretirementDefinedBenefitPlansLiabilitiesNoncurrent`	$481.30M	USD	Point-in-time
Other	`OtherLiabilitiesNoncurrent`	$279.30M	USD	Point-in-time
Other	`OtherLiabilitiesNoncurrent`	$296.10M	USD	Point-in-time
Total other liabilities	`DeferredCreditsAndOtherLiabilities`	$3.83B	USD	Point-in-time
Total other liabilities	`DeferredCreditsAndOtherLiabilities`	$4.04B	USD	Point-in-time
Commitments and contingencies (Note 12)	`CommitmentsAndContingencies`	-	USD	Point-in-time
Commitments and contingencies (Note 12)	`CommitmentsAndContingencies`	-	USD	Point-in-time
Common stock	`CommonStockValue`	$2.30M	USD	Point-in-time
Common stock	`CommonStockValue`	$2.30M	USD	Point-in-time
Additional paid-in capital	`AdditionalPaidInCapitalCommonStock`	$1.69B	USD	Point-in-time
Additional paid-in capital	`AdditionalPaidInCapitalCommonStock`	$1.84B	USD	Point-in-time
Retained earnings	`RetainedEarningsAccumulatedDeficit`	$2.32B	USD	Point-in-time
Retained earnings	`RetainedEarningsAccumulatedDeficit`	$2.18B	USD	Point-in-time
Accumulated other comprehensive loss	`AccumulatedOtherComprehensiveIncomeLossNetOfTax`	$-400.00K	USD	Point-in-time
Accumulated other comprehensive loss	`AccumulatedOtherComprehensiveIncomeLossNetOfTax`	$-400.00K	USD	Point-in-time
Shares in deferred compensation trust - 454,532 and 441,695 shares at a weighted average cost of $23.52 and $22.71 per share	`CommonStockHeldInTrust`	$10.70M	USD	Point-in-time
Shares in deferred compensation trust - 454,532 and 441,695 shares at a weighted average cost of $23.52 and $22.71 per share	`CommonStockHeldInTrust`	$10.00M	USD	Point-in-time
Total common equity	`StockholdersEquity`	$4.15B	USD	Point-in-time
Total common equity	`StockholdersEquity`	$3.86B	USD	Point-in-time
Cumulative preferred stock of Interstate Power and Light Company	`MinorityInterestAmountRepresentedByPreferredStock`	$200.00M	USD	Point-in-time
Cumulative preferred stock of Interstate Power and Light Company	`MinorityInterestAmountRepresentedByPreferredStock`	$200.00M	USD	Point-in-time
Total equity	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$4.35B	USD	Point-in-time
Total equity	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$4.06B	USD	Point-in-time
Total liabilities and equity	`LiabilitiesAndStockholdersEquity`	$13.37B	USD	Point-in-time
Total liabilities and equity	`LiabilitiesAndStockholdersEquity`	$14.11B	USD	Point-in-time

Income Statement 136 line items

Line Item	Tag	Value	Unit	Period
Electric utility	`ElectricDomesticRegulatedRevenue`	$2.20B	USD	3 Qtrs
Electric utility	`ElectricDomesticRegulatedRevenue`	$2.21B	USD	3 Qtrs
Electric utility	`ElectricDomesticRegulatedRevenue`	$840.60M	USD	1 Quarter
Electric utility	`ElectricDomesticRegulatedRevenue`	$864.30M	USD	1 Quarter
Gas utility	`GasDomesticRegulatedRevenue`	$248.70M	USD	3 Qtrs
Gas utility	`GasDomesticRegulatedRevenue`	$262.70M	USD	3 Qtrs
Gas utility	`GasDomesticRegulatedRevenue`	$39.50M	USD	1 Quarter
Gas utility	`GasDomesticRegulatedRevenue`	$45.80M	USD	1 Quarter
Other utility	`OtherSalesRevenueNet`	$11.20M	USD	1 Quarter
Other utility	`OtherSalesRevenueNet`	$9.40M	USD	1 Quarter
Other utility	`OtherSalesRevenueNet`	$35.00M	USD	3 Qtrs
Other utility	`OtherSalesRevenueNet`	$34.40M	USD	3 Qtrs
Non-regulated	`UnregulatedOperatingRevenue`	$11.40M	USD	1 Quarter
Non-regulated	`UnregulatedOperatingRevenue`	$29.90M	USD	3 Qtrs
Non-regulated	`UnregulatedOperatingRevenue`	$9.30M	USD	1 Quarter
Non-regulated	`UnregulatedOperatingRevenue`	$30.20M	USD	3 Qtrs
Total operating revenues	`Revenues`	$2.53B	USD	3 Qtrs
Total operating revenues	`Revenues`	$2.52B	USD	3 Qtrs
Total operating revenues	`Revenues`	$924.60M	USD	1 Quarter
Total operating revenues	`Revenues`	$906.90M	USD	1 Quarter
Electric production fuel and purchased power	`ElectricProductionExpense`	$245.90M	USD	1 Quarter
Electric production fuel and purchased power	`ElectricProductionExpense`	$222.60M	USD	1 Quarter
Electric production fuel and purchased power	`ElectricProductionExpense`	$614.70M	USD	3 Qtrs
Electric production fuel and purchased power	`ElectricProductionExpense`	$646.30M	USD	3 Qtrs
Electric transmission service	`CostOfTransmission`	$121.00M	USD	1 Quarter
Electric transmission service	`CostOfTransmission`	$396.80M	USD	3 Qtrs
Electric transmission service	`CostOfTransmission`	$363.30M	USD	3 Qtrs
Electric transmission service	`CostOfTransmission`	$138.60M	USD	1 Quarter
Cost of gas sold	`CostOfDomesticRegulatedGasRevenue`	$15.00M	USD	1 Quarter
Cost of gas sold	`CostOfDomesticRegulatedGasRevenue`	$12.50M	USD	1 Quarter
Cost of gas sold	`CostOfDomesticRegulatedGasRevenue`	$132.30M	USD	3 Qtrs
Cost of gas sold	`CostOfDomesticRegulatedGasRevenue`	$135.50M	USD	3 Qtrs
Asset valuation charges for Franklin County wind farm	`ImpairmentOfLongLivedAssetsHeldForUse`	$86.40M	USD	3 Qtrs
Asset valuation charges for Franklin County wind farm	`ImpairmentOfLongLivedAssetsHeldForUse`	-	USD	1 Quarter
Asset valuation charges for Franklin County wind farm	`ImpairmentOfLongLivedAssetsHeldForUse`	-	USD	3 Qtrs
Asset valuation charges for Franklin County wind farm	`ImpairmentOfLongLivedAssetsHeldForUse`	$86.40M	USD	1 Quarter
Other operation and maintenance	`OtherCostAndExpenseOperating`	$169.10M	USD	1 Quarter
Other operation and maintenance	`OtherCostAndExpenseOperating`	$467.10M	USD	3 Qtrs
Other operation and maintenance	`OtherCostAndExpenseOperating`	$148.60M	USD	1 Quarter
Other operation and maintenance	`OtherCostAndExpenseOperating`	$438.20M	USD	3 Qtrs
Depreciation and amortization	`DepreciationAndAmortization`	$104.10M	USD	1 Quarter
Depreciation and amortization	`DepreciationAndAmortization`	$308.70M	USD	3 Qtrs
Depreciation and amortization	`DepreciationAndAmortization`	$342.70M	USD	3 Qtrs
Depreciation and amortization	`DepreciationAndAmortization`	$120.70M	USD	1 Quarter
Taxes other than income taxes	`TaxesExcludingIncomeAndExciseTaxes`	$77.20M	USD	3 Qtrs
Taxes other than income taxes	`TaxesExcludingIncomeAndExciseTaxes`	$79.10M	USD	3 Qtrs
Taxes other than income taxes	`TaxesExcludingIncomeAndExciseTaxes`	$27.00M	USD	1 Quarter
Taxes other than income taxes	`TaxesExcludingIncomeAndExciseTaxes`	$25.90M	USD	1 Quarter
Total operating expenses	`CostsAndExpenses`	$675.40M	USD	1 Quarter
Total operating expenses	`CostsAndExpenses`	$2.00B	USD	3 Qtrs
Total operating expenses	`CostsAndExpenses`	$2.09B	USD	3 Qtrs
Total operating expenses	`CostsAndExpenses`	$762.00M	USD	1 Quarter
Operating income	`OperatingIncomeLoss`	$523.70M	USD	3 Qtrs
Operating income	`OperatingIncomeLoss`	$437.10M	USD	3 Qtrs
Operating income	`OperatingIncomeLoss`	$162.60M	USD	1 Quarter
Operating income	`OperatingIncomeLoss`	$231.50M	USD	1 Quarter
Interest expense	`InterestExpense`	$159.00M	USD	3 Qtrs
Interest expense	`InterestExpense`	$48.80M	USD	1 Quarter
Interest expense	`InterestExpense`	$53.90M	USD	1 Quarter
Interest expense	`InterestExpense`	$144.80M	USD	3 Qtrs
Equity income from unconsolidated investments, net	`IncomeLossFromEquityMethodInvestments`	$28.80M	USD	3 Qtrs
Equity income from unconsolidated investments, net	`IncomeLossFromEquityMethodInvestments`	$32.90M	USD	3 Qtrs
Equity income from unconsolidated investments, net	`IncomeLossFromEquityMethodInvestments`	$9.20M	USD	1 Quarter
Equity income from unconsolidated investments, net	`IncomeLossFromEquityMethodInvestments`	$10.10M	USD	1 Quarter
Allowance for funds used during construction	`PublicUtilitiesAllowanceForFundsUsedDuringConstructionAdditions`	$36.70M	USD	3 Qtrs
Allowance for funds used during construction	`PublicUtilitiesAllowanceForFundsUsedDuringConstructionAdditions`	$15.80M	USD	1 Quarter
Allowance for funds used during construction	`PublicUtilitiesAllowanceForFundsUsedDuringConstructionAdditions`	$9.60M	USD	1 Quarter
Allowance for funds used during construction	`PublicUtilitiesAllowanceForFundsUsedDuringConstructionAdditions`	$44.30M	USD	3 Qtrs
Interest income and other	`OtherNonoperatingIncomeExpense`	$100.00K	USD	1 Quarter
Interest income and other	`OtherNonoperatingIncomeExpense`	$200.00K	USD	1 Quarter
Interest income and other	`OtherNonoperatingIncomeExpense`	$400.00K	USD	3 Qtrs
Interest income and other	`OtherNonoperatingIncomeExpense`	$300.00K	USD	3 Qtrs
Total interest expense and other	`NonoperatingIncomeExpense`	$-34.00M	USD	1 Quarter
Total interest expense and other	`NonoperatingIncomeExpense`	$-71.40M	USD	3 Qtrs
Total interest expense and other	`NonoperatingIncomeExpense`	$-89.00M	USD	3 Qtrs
Total interest expense and other	`NonoperatingIncomeExpense`	$-23.70M	USD	1 Quarter
Income from continuing operations before income taxes	`IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest`	$434.70M	USD	3 Qtrs
Income from continuing operations before income taxes	`IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest`	$138.90M	USD	1 Quarter
Income from continuing operations before income taxes	`IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest`	$197.50M	USD	1 Quarter
Income from continuing operations before income taxes	`IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest`	$365.70M	USD	3 Qtrs
Income tax expense (benefit)	`IncomeTaxExpenseBenefit`	$64.90M	USD	3 Qtrs
Income tax expense (benefit)	`IncomeTaxExpenseBenefit`	$26.10M	USD	1 Quarter
Income tax expense (benefit)	`IncomeTaxExpenseBenefit`	$7.50M	USD	1 Quarter
Income tax expense (benefit)	`IncomeTaxExpenseBenefit`	$47.20M	USD	3 Qtrs
Income from continuing operations, net of tax	`IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest`	$369.80M	USD	3 Qtrs
Income from continuing operations, net of tax	`IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest`	$131.40M	USD	1 Quarter
Income from continuing operations, net of tax	`IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest`	$171.40M	USD	1 Quarter
Income from continuing operations, net of tax	`IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest`	$318.50M	USD	3 Qtrs
Income (loss) from discontinued operations, net of tax	`IncomeLossFromDiscontinuedOperationsNetOfTax`	$-2.00M	USD	3 Qtrs
Income (loss) from discontinued operations, net of tax	`IncomeLossFromDiscontinuedOperationsNetOfTax`	$1.40M	USD	3 Qtrs
Income (loss) from discontinued operations, net of tax	`IncomeLossFromDiscontinuedOperationsNetOfTax`	-	USD	1 Quarter
Income (loss) from discontinued operations, net of tax	`IncomeLossFromDiscontinuedOperationsNetOfTax`	$-400.00K	USD	1 Quarter
Net income	`NetIncomeLoss`	$131.00M	USD	1 Quarter
Net income	`NetIncomeLoss`	$371.20M	USD	3 Qtrs
Net income	`NetIncomeLoss`	$316.50M	USD	3 Qtrs
Net income	`NetIncomeLoss`	$171.40M	USD	1 Quarter
Preferred dividend requirements of Interstate Power and Light Company	`DividendsPreferredStock`	$7.70M	USD	3 Qtrs
Preferred dividend requirements of Interstate Power and Light Company	`DividendsPreferredStock`	$2.60M	USD	1 Quarter
Preferred dividend requirements of Interstate Power and Light Company	`DividendsPreferredStock`	$2.60M	USD	1 Quarter
Preferred dividend requirements of Interstate Power and Light Company	`DividendsPreferredStock`	$7.70M	USD	3 Qtrs
Net income attributable to common shareowners	`NetIncomeLossAvailableToCommonStockholdersBasic`	$308.80M	USD	3 Qtrs
Net income attributable to common shareowners	`NetIncomeLossAvailableToCommonStockholdersBasic`	$128.40M	USD	1 Quarter
Net income attributable to common shareowners	`NetIncomeLossAvailableToCommonStockholdersBasic`	$363.50M	USD	3 Qtrs
Net income attributable to common shareowners	`NetIncomeLossAvailableToCommonStockholdersBasic`	$168.80M	USD	1 Quarter
Weighted average number of common shares outstanding (basic and diluted) (in shares)	`WeightedAverageNumberOfShareOutstandingBasicAndDiluted`	231.00M	shares	1 Quarter
Weighted average number of common shares outstanding (basic and diluted) (in shares)	`WeightedAverageNumberOfShareOutstandingBasicAndDiluted`	227.00M	shares	3 Qtrs
Weighted average number of common shares outstanding (basic and diluted) (in shares)	`WeightedAverageNumberOfShareOutstandingBasicAndDiluted`	229.20M	shares	3 Qtrs
Weighted average number of common shares outstanding (basic and diluted) (in shares)	`WeightedAverageNumberOfShareOutstandingBasicAndDiluted`	227.20M	shares	1 Quarter
Income from continuing operations, net of tax (basic and diluted) (in dollars per share)	`IncomeLossFromContinuingOperationsPerBasicAndDilutedShare`	$0.57	USD	1 Quarter
Income from continuing operations, net of tax (basic and diluted) (in dollars per share)	`IncomeLossFromContinuingOperationsPerBasicAndDilutedShare`	$1.37	USD	3 Qtrs
Income from continuing operations, net of tax (basic and diluted) (in dollars per share)	`IncomeLossFromContinuingOperationsPerBasicAndDilutedShare`	$0.73	USD	1 Quarter
Income from continuing operations, net of tax (basic and diluted) (in dollars per share)	`IncomeLossFromContinuingOperationsPerBasicAndDilutedShare`	$1.58	USD	3 Qtrs
Income (loss) from discontinued operations, net of tax (basic and diluted) (in dollars per share)	`IncomeLossFromDiscontinuedOperationsNetOfTaxPerBasicAndDilutedShare`	-	USD	1 Quarter
Income (loss) from discontinued operations, net of tax (basic and diluted) (in dollars per share)	`IncomeLossFromDiscontinuedOperationsNetOfTaxPerBasicAndDilutedShare`	$-0.01	USD	3 Qtrs
Income (loss) from discontinued operations, net of tax (basic and diluted) (in dollars per share)	`IncomeLossFromDiscontinuedOperationsNetOfTaxPerBasicAndDilutedShare`	$0.01	USD	3 Qtrs
Income (loss) from discontinued operations, net of tax (basic and diluted) (in dollars per share)	`IncomeLossFromDiscontinuedOperationsNetOfTaxPerBasicAndDilutedShare`	-	USD	1 Quarter
Earnings per weighted average common share attributable to Alliant Energy common shareowners (basic and diluted) (in dollars per share)	`EarningsPerShareBasicAndDiluted`	$1.36	USD	3 Qtrs
Earnings per weighted average common share attributable to Alliant Energy common shareowners (basic and diluted) (in dollars per share)	`EarningsPerShareBasicAndDiluted`	$0.57	USD	1 Quarter
Earnings per weighted average common share attributable to Alliant Energy common shareowners (basic and diluted) (in dollars per share)	`EarningsPerShareBasicAndDiluted`	$0.73	USD	1 Quarter
Earnings per weighted average common share attributable to Alliant Energy common shareowners (basic and diluted) (in dollars per share)	`EarningsPerShareBasicAndDiluted`	$1.59	USD	3 Qtrs
Income from continuing operations, net of tax	`IncomeLossFromContinuingOperations`	$168.80M	USD	1 Quarter
Income from continuing operations, net of tax	`IncomeLossFromContinuingOperations`	$310.80M	USD	3 Qtrs
Income from continuing operations, net of tax	`IncomeLossFromContinuingOperations`	$362.10M	USD	3 Qtrs
Income from continuing operations, net of tax	`IncomeLossFromContinuingOperations`	$128.80M	USD	1 Quarter
Income (loss) from discontinued operations, net of tax	`IncomeLossFromDiscontinuedOperationsNetOfTaxAttributableToReportingEntity`	$-2.00M	USD	3 Qtrs
Income (loss) from discontinued operations, net of tax	`IncomeLossFromDiscontinuedOperationsNetOfTaxAttributableToReportingEntity`	$-400.00K	USD	1 Quarter
Income (loss) from discontinued operations, net of tax	`IncomeLossFromDiscontinuedOperationsNetOfTaxAttributableToReportingEntity`	$1.40M	USD	3 Qtrs
Income (loss) from discontinued operations, net of tax	`IncomeLossFromDiscontinuedOperationsNetOfTaxAttributableToReportingEntity`	-	USD	1 Quarter
Net income attributable to common shareowners	`NetIncomeLossAvailableToCommonStockholdersBasic`	$308.80M	USD	3 Qtrs
Net income attributable to common shareowners	`NetIncomeLossAvailableToCommonStockholdersBasic`	$128.40M	USD	1 Quarter
Net income attributable to common shareowners	`NetIncomeLossAvailableToCommonStockholdersBasic`	$363.50M	USD	3 Qtrs
Net income attributable to common shareowners	`NetIncomeLossAvailableToCommonStockholdersBasic`	$168.80M	USD	1 Quarter
Dividends declared per common share (in dollars per share)	`CommonStockDividendsPerShareDeclared`	$0.88	USD	3 Qtrs
Dividends declared per common share (in dollars per share)	`CommonStockDividendsPerShareDeclared`	$0.94	USD	3 Qtrs
Dividends declared per common share (in dollars per share)	`CommonStockDividendsPerShareDeclared`	$0.32	USD	1 Quarter
Dividends declared per common share (in dollars per share)	`CommonStockDividendsPerShareDeclared`	$0.29	USD	1 Quarter

Cash Flow Statement 64 line items

Line Item	Tag	Value	Unit	Period
Net income	`NetIncomeLoss`	$131.00M	USD	1 Quarter
Net income	`NetIncomeLoss`	$371.20M	USD	3 Qtrs
Net income	`NetIncomeLoss`	$316.50M	USD	3 Qtrs
Net income	`NetIncomeLoss`	$171.40M	USD	1 Quarter
Depreciation and amortization	`AdjustmentDepreciationAndAmortizationIncludingDiscontinuedOperations`	$308.70M	USD	3 Qtrs
Depreciation and amortization	`AdjustmentDepreciationAndAmortizationIncludingDiscontinuedOperations`	$342.70M	USD	3 Qtrs
Deferred tax expense and tax credits	`DeferredIncomeTaxesAndTaxCredits`	$102.70M	USD	3 Qtrs
Deferred tax expense and tax credits	`DeferredIncomeTaxesAndTaxCredits`	$76.70M	USD	3 Qtrs
Asset valuation charges for Franklin County wind farm	`ImpairmentOfLongLivedAssetsHeldForUse`	$86.40M	USD	3 Qtrs
Asset valuation charges for Franklin County wind farm	`ImpairmentOfLongLivedAssetsHeldForUse`	-	USD	1 Quarter
Asset valuation charges for Franklin County wind farm	`ImpairmentOfLongLivedAssetsHeldForUse`	-	USD	3 Qtrs
Asset valuation charges for Franklin County wind farm	`ImpairmentOfLongLivedAssetsHeldForUse`	$86.40M	USD	1 Quarter
Other	`OtherNoncashIncomeExpense`	$7.10M	USD	3 Qtrs
Other	`OtherNoncashIncomeExpense`	$44.00M	USD	3 Qtrs
Accounts receivable	`IncreaseDecreaseInAccountsReceivable`	$101.00M	USD	3 Qtrs
Accounts receivable	`IncreaseDecreaseInAccountsReceivable`	$-72.80M	USD	3 Qtrs
Sales of accounts receivable	`IncreaseDecreaseInOtherReceivables`	$-91.00M	USD	3 Qtrs
Sales of accounts receivable	`IncreaseDecreaseInOtherReceivables`	$4.00M	USD	3 Qtrs
Regulatory assets	`IncreaseDecreaseInOtherRegulatoryAssets`	$-36.60M	USD	3 Qtrs
Regulatory assets	`IncreaseDecreaseInOtherRegulatoryAssets`	$108.90M	USD	3 Qtrs
Regulatory liabilities	`IncreaseDecreaseInRegulatoryLiabilities`	$-64.80M	USD	3 Qtrs
Regulatory liabilities	`IncreaseDecreaseInRegulatoryLiabilities`	$-66.50M	USD	3 Qtrs
Deferred income taxes	`IncreaseDecreaseInDeferredIncomeTaxes`	$-71.80M	USD	3 Qtrs
Deferred income taxes	`IncreaseDecreaseInDeferredIncomeTaxes`	$-101.00M	USD	3 Qtrs
Other	`IncreaseDecreaseInOtherOperatingCapitalNet`	$27.20M	USD	3 Qtrs
Other	`IncreaseDecreaseInOtherOperatingCapitalNet`	$17.20M	USD	3 Qtrs
Net cash flows from operating activities	`NetCashProvidedByUsedInOperatingActivities`	$654.00M	USD	3 Qtrs
Net cash flows from operating activities	`NetCashProvidedByUsedInOperatingActivities`	$883.40M	USD	3 Qtrs
Utility business construction and acquisition expenditures	`PaymentsToAcquireProductiveAssetsBusinessLine1`	$743.60M	USD	3 Qtrs
Utility business construction and acquisition expenditures	`PaymentsToAcquireProductiveAssetsBusinessLine1`	$909.70M	USD	3 Qtrs
Alliant Energy Corporate Services, Inc. and non-regulated businesses construction and acquisition expenditures	`PaymentsToAcquireProductiveAssetsBusinessLine2`	$139.70M	USD	3 Qtrs
Alliant Energy Corporate Services, Inc. and non-regulated businesses construction and acquisition expenditures	`PaymentsToAcquireProductiveAssetsBusinessLine2`	$43.30M	USD	3 Qtrs
Other	`PaymentsForProceedsFromOtherInvestingActivities`	$-15.10M	USD	3 Qtrs
Other	`PaymentsForProceedsFromOtherInvestingActivities`	$22.90M	USD	3 Qtrs
Net cash flows used for investing activities	`NetCashProvidedByUsedInInvestingActivities`	$-771.80M	USD	3 Qtrs
Net cash flows used for investing activities	`NetCashProvidedByUsedInInvestingActivities`	$-1.07B	USD	3 Qtrs
Common stock dividends	`PaymentsOfDividendsCommonStock`	$215.70M	USD	3 Qtrs
Common stock dividends	`PaymentsOfDividendsCommonStock`	$199.80M	USD	3 Qtrs
Proceeds from issuance of common stock, net	`ProceedsFromIssuanceOfCommonStock`	$20.40M	USD	3 Qtrs
Proceeds from issuance of common stock, net	`ProceedsFromIssuanceOfCommonStock`	$143.20M	USD	3 Qtrs
Proceeds from issuance of long-term debt	`ProceedsFromIssuanceOfLongTermDebt`	$300.00M	USD	3 Qtrs
Proceeds from issuance of long-term debt	`ProceedsFromIssuanceOfLongTermDebt`	-	USD	3 Qtrs
Net change in commercial paper and other short-term borrowings	`ProceedsFromRepaymentsOfShortTermDebt`	$281.20M	USD	3 Qtrs
Net change in commercial paper and other short-term borrowings	`ProceedsFromRepaymentsOfShortTermDebt`	$78.50M	USD	3 Qtrs
Other	`ProceedsFromPaymentsForOtherFinancingActivities`	$-18.80M	USD	3 Qtrs
Other	`ProceedsFromPaymentsForOtherFinancingActivities`	$-2.40M	USD	3 Qtrs
Net cash flows from (used for) financing activities	`NetCashProvidedByUsedInFinancingActivities`	$196.70M	USD	3 Qtrs
Net cash flows from (used for) financing activities	`NetCashProvidedByUsedInFinancingActivities`	$189.90M	USD	3 Qtrs
Net increase (decrease) in cash and cash equivalents	`CashAndCashEquivalentsPeriodIncreaseDecrease`	$78.90M	USD	3 Qtrs
Net increase (decrease) in cash and cash equivalents	`CashAndCashEquivalentsPeriodIncreaseDecrease`	$1.00M	USD	3 Qtrs
Cash and cash equivalents at beginning of period	`CashAndCashEquivalentsAtCarryingValue`	$9.20M	USD	Point-in-time
Cash and cash equivalents at beginning of period	`CashAndCashEquivalentsAtCarryingValue`	$5.80M	USD	Point-in-time
Cash and cash equivalents at beginning of period	`CashAndCashEquivalentsAtCarryingValue`	$8.20M	USD	Point-in-time
Cash and cash equivalents at beginning of period	`CashAndCashEquivalentsAtCarryingValue`	$84.70M	USD	Point-in-time
Cash and cash equivalents at end of period	`CashAndCashEquivalentsAtCarryingValue`	$9.20M	USD	Point-in-time
Cash and cash equivalents at end of period	`CashAndCashEquivalentsAtCarryingValue`	$5.80M	USD	Point-in-time
Cash and cash equivalents at end of period	`CashAndCashEquivalentsAtCarryingValue`	$8.20M	USD	Point-in-time
Cash and cash equivalents at end of period	`CashAndCashEquivalentsAtCarryingValue`	$84.70M	USD	Point-in-time
Interest, net of capitalized interest	`InterestPaidNet`	$158.50M	USD	3 Qtrs
Interest, net of capitalized interest	`InterestPaidNet`	$140.70M	USD	3 Qtrs
Income taxes, net	`IncomeTaxesPaidNet`	$8.30M	USD	3 Qtrs
Income taxes, net	`IncomeTaxesPaidNet`	$11.40M	USD	3 Qtrs
Accrued capital expenditures	`CapitalExpendituresIncurredButNotYetPaid`	$99.90M	USD	3 Qtrs
Accrued capital expenditures	`CapitalExpendituresIncurredButNotYetPaid`	$197.20M	USD	3 Qtrs

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