2019 Q3 Form 10-Q Financial Statement
#000035254119000099 Filed on November 07, 2019
Income Statement
Concept | 2019 Q3 | 2018 Q3 |
---|---|---|
Revenue | $990.2M | $928.6M |
YoY Change | 6.63% | 2.39% |
Cost Of Revenue | $127.0M | $129.1M |
YoY Change | -1.63% | 760.67% |
Gross Profit | $863.2M | $799.5M |
YoY Change | 7.97% | -10.36% |
Gross Profit Margin | 87.17% | 86.1% |
Selling, General & Admin | ||
YoY Change | ||
% of Gross Profit | ||
Research & Development | ||
YoY Change | ||
% of Gross Profit | ||
Depreciation & Amortization | $143.8M | $129.0M |
YoY Change | 11.47% | 6.88% |
% of Gross Profit | 16.66% | 16.14% |
Operating Expenses | $690.9M | $661.2M |
YoY Change | 4.49% | 0.85% |
Operating Profit | $290.0M | $256.1M |
YoY Change | 13.24% | 8.38% |
Interest Expense | $68.00M | $63.30M |
YoY Change | 7.42% | 17.44% |
% of Operating Profit | 23.45% | 24.72% |
Other Income/Expense, Net | -$38.00M | -$36.30M |
YoY Change | 4.68% | -6.44% |
Pretax Income | $252.0M | $219.8M |
YoY Change | 14.65% | 11.29% |
Income Tax | $23.00M | $11.70M |
% Of Pretax Income | 9.13% | 5.32% |
Net Earnings | $229.0M | $208.1M |
YoY Change | 10.04% | 21.41% |
Net Earnings / Revenue | 23.13% | 22.41% |
Basic Earnings Per Share | $0.95 | $0.87 |
Diluted Earnings Per Share | $0.94 | $0.87 |
COMMON SHARES | ||
Basic Shares Outstanding | 239.1M shares | 235.2M shares |
Diluted Shares Outstanding | 239.9M shares | 235.2M shares |
Balance Sheet
Concept | 2019 Q3 | 2018 Q3 |
---|---|---|
SHORT-TERM ASSETS | ||
Cash & Short-Term Investments | $194.0M | $240.0M |
YoY Change | -19.17% | 2566.67% |
Cash & Equivalents | $193.7M | $239.7M |
Short-Term Investments | ||
Other Short-Term Assets | $137.1M | $126.5M |
YoY Change | 8.38% | 24.75% |
Inventory | $224.0M | $211.0M |
Prepaid Expenses | ||
Receivables | $451.5M | $465.3M |
Other Receivables | $0.00 | $0.00 |
Total Short-Term Assets | $1.113B | $1.125B |
YoY Change | -1.05% | 49.67% |
LONG-TERM ASSETS | ||
Property, Plant & Equipment | $13.13B | $12.01B |
YoY Change | 9.38% | 9.83% |
Goodwill | ||
YoY Change | ||
Intangibles | ||
YoY Change | ||
Long-Term Investments | $453.0M | $424.0M |
YoY Change | 6.84% | -7.63% |
Other Assets | $72.60M | $103.3M |
YoY Change | -29.72% | 382.71% |
Total Long-Term Assets | $1.836B | $1.716B |
YoY Change | 7.02% | -13.07% |
TOTAL ASSETS | ||
Total Short-Term Assets | $1.113B | $1.125B |
Total Long-Term Assets | $1.836B | $1.716B |
Total Assets | $16.53B | $15.27B |
YoY Change | 8.28% | 8.18% |
SHORT-TERM LIABILITIES | ||
YoY Change | ||
Accounts Payable | $497.7M | $498.1M |
YoY Change | -0.08% | 4.18% |
Accrued Expenses | $2.000M | |
YoY Change | ||
Deferred Revenue | ||
YoY Change | ||
Short-Term Debt | $350.0M | $137.0M |
YoY Change | 155.47% | -71.75% |
Long-Term Debt Due | $656.8M | $506.1M |
YoY Change | 29.78% | 381.08% |
Total Short-Term Liabilities | $2.082B | $1.548B |
YoY Change | 34.48% | 5.32% |
LONG-TERM LIABILITIES | ||
Long-Term Debt | $5.535B | $5.248B |
YoY Change | 5.47% | 23.34% |
Other Long-Term Liabilities | $305.6M | $286.8M |
YoY Change | 6.56% | -3.14% |
Total Long-Term Liabilities | $5.841B | $5.535B |
YoY Change | 5.52% | 21.62% |
TOTAL LIABILITIES | ||
Total Short-Term Liabilities | $2.082B | $1.548B |
Total Long-Term Liabilities | $5.841B | $5.535B |
Total Liabilities | $7.923B | $7.083B |
YoY Change | 11.85% | 17.64% |
SHAREHOLDERS EQUITY | ||
Retained Earnings | $2.739B | $2.540B |
YoY Change | 7.86% | 9.24% |
Common Stock | $2.239B | $2.041B |
YoY Change | 9.74% | 10.87% |
Preferred Stock | ||
YoY Change | ||
Treasury Stock (at cost) | ||
YoY Change | ||
Treasury Stock Shares | ||
Shareholders Equity | $4.969B | $4.570B |
YoY Change | ||
Total Liabilities & Shareholders Equity | $16.53B | $15.27B |
YoY Change | 8.28% | 8.18% |
Cashflow Statement
Concept | 2019 Q3 | 2018 Q3 |
---|---|---|
OPERATING ACTIVITIES | ||
Net Income | $229.0M | $208.1M |
YoY Change | 10.04% | 21.41% |
Depreciation, Depletion And Amortization | $143.8M | $129.0M |
YoY Change | 11.47% | 6.88% |
Cash From Operating Activities | $232.3M | $167.8M |
YoY Change | 38.44% | -48.18% |
INVESTING ACTIVITIES | ||
Capital Expenditures | -$351.4M | -$380.6M |
YoY Change | -7.67% | 16.43% |
Acquisitions | ||
YoY Change | ||
Other Investing Activities | $97.30M | $82.80M |
YoY Change | 17.51% | -237.31% |
Cash From Investing Activities | -$254.1M | -$297.8M |
YoY Change | -14.67% | -23.09% |
FINANCING ACTIVITIES | ||
Cash Dividend Paid | ||
YoY Change | ||
Common Stock Issuance & Retirement, Net | $125.0M | $91.20M |
YoY Change | 37.06% | |
Debt Paid & Issued, Net | ||
YoY Change | ||
Cash From Financing Activities | 47.30M | 365.8M |
YoY Change | -87.07% | 450.9% |
NET CHANGE | ||
Cash From Operating Activities | 232.3M | 167.8M |
Cash From Investing Activities | -254.1M | -297.8M |
Cash From Financing Activities | 47.30M | 365.8M |
Net Change In Cash | 25.50M | 235.8M |
YoY Change | -89.19% | 7760.0% |
FREE CASH FLOW | ||
Cash From Operating Activities | $232.3M | $167.8M |
Capital Expenditures | -$351.4M | -$380.6M |
Free Cash Flow | $583.7M | $548.4M |
YoY Change | 6.44% | -15.72% |
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CashAndCashEquivalentsAtCarryingValue
|
20900000 | USD |
CY2019Q3 | us-gaap |
Accounts Receivable Net Current
AccountsReceivableNetCurrent
|
451500000 | USD |
CY2018Q4 | us-gaap |
Accounts Receivable Net Current
AccountsReceivableNetCurrent
|
350400000 | USD |
CY2019Q3 | us-gaap |
Energy Related Inventory Other Fossil Fuel
EnergyRelatedInventoryOtherFossilFuel
|
71100000 | USD |
CY2018Q4 | us-gaap |
Energy Related Inventory Other Fossil Fuel
EnergyRelatedInventoryOtherFossilFuel
|
61400000 | USD |
CY2019Q3 | us-gaap |
Energy Related Inventory Gas Stored Underground
EnergyRelatedInventoryGasStoredUnderground
|
46100000 | USD |
CY2018Q4 | us-gaap |
Energy Related Inventory Gas Stored Underground
EnergyRelatedInventoryGasStoredUnderground
|
49000000.0 | USD |
CY2019Q3 | us-gaap |
Inventory Raw Materials And Supplies
InventoryRawMaterialsAndSupplies
|
106900000 | USD |
CY2018Q4 | us-gaap |
Inventory Raw Materials And Supplies
InventoryRawMaterialsAndSupplies
|
101400000 | USD |
CY2019Q3 | us-gaap |
Regulatory Assets Current
RegulatoryAssetsCurrent
|
76300000 | USD |
CY2018Q4 | us-gaap |
Regulatory Assets Current
RegulatoryAssetsCurrent
|
79800000 | USD |
CY2019Q3 | us-gaap |
Prepaid Taxes
PrepaidTaxes
|
30300000 | USD |
CY2018Q4 | us-gaap |
Prepaid Taxes
PrepaidTaxes
|
42200000 | USD |
CY2019Q3 | us-gaap |
Other Assets Current
OtherAssetsCurrent
|
137100000 | USD |
CY2018Q4 | us-gaap |
Other Assets Current
OtherAssetsCurrent
|
80000000.0 | USD |
CY2019Q3 | us-gaap |
Assets Current
AssetsCurrent
|
1113000000.0 | USD |
CY2018Q4 | us-gaap |
Assets Current
AssetsCurrent
|
785100000 | USD |
CY2019Q3 | us-gaap |
Property Plant And Equipment Net
PropertyPlantAndEquipmentNet
|
13131100000 | USD |
CY2018Q4 | us-gaap |
Property Plant And Equipment Net
PropertyPlantAndEquipmentNet
|
12462400000 | USD |
CY2019Q3 | lnt |
Investments Business Line1
InvestmentsBusinessLine1
|
309100000 | USD |
CY2018Q4 | lnt |
Investments Business Line1
InvestmentsBusinessLine1
|
293600000 | USD |
CY2019Q3 | us-gaap |
Other Long Term Investments
OtherLongTermInvestments
|
143900000 | USD |
CY2018Q4 | us-gaap |
Other Long Term Investments
OtherLongTermInvestments
|
137700000 | USD |
CY2019Q3 | us-gaap |
Long Term Investments
LongTermInvestments
|
453000000.0 | USD |
CY2018Q4 | us-gaap |
Long Term Investments
LongTermInvestments
|
431300000 | USD |
CY2019Q3 | us-gaap |
Regulatory Assets Noncurrent
RegulatoryAssetsNoncurrent
|
1763700000 | USD |
CY2018Q4 | us-gaap |
Regulatory Assets Noncurrent
RegulatoryAssetsNoncurrent
|
1657500000 | USD |
CY2019Q3 | us-gaap |
Other Assets Noncurrent
OtherAssetsNoncurrent
|
72600000 | USD |
CY2018Q4 | us-gaap |
Other Assets Noncurrent
OtherAssetsNoncurrent
|
89700000 | USD |
CY2019Q3 | us-gaap |
Assets Noncurrent
AssetsNoncurrent
|
1836300000 | USD |
CY2018Q4 | us-gaap |
Assets Noncurrent
AssetsNoncurrent
|
1747200000 | USD |
CY2019Q3 | us-gaap |
Assets
Assets
|
16533400000 | USD |
CY2018Q4 | us-gaap |
Assets
Assets
|
15426000000.0 | USD |
CY2019Q3 | us-gaap |
Long Term Debt Current
LongTermDebtCurrent
|
656800000 | USD |
CY2018Q4 | us-gaap |
Long Term Debt Current
LongTermDebtCurrent
|
256500000 | USD |
CY2019Q3 | us-gaap |
Commercial Paper
CommercialPaper
|
349600000 | USD |
CY2018Q4 | us-gaap |
Commercial Paper
CommercialPaper
|
441200000 | USD |
CY2019Q3 | us-gaap |
Accounts Payable Current
AccountsPayableCurrent
|
497700000 | USD |
CY2018Q4 | us-gaap |
Accounts Payable Current
AccountsPayableCurrent
|
543300000 | USD |
CY2019Q3 | us-gaap |
Regulatory Liability Current
RegulatoryLiabilityCurrent
|
188900000 | USD |
CY2018Q4 | us-gaap |
Regulatory Liability Current
RegulatoryLiabilityCurrent
|
142700000 | USD |
CY2019Q3 | us-gaap |
Other Liabilities Current
OtherLiabilitiesCurrent
|
389100000 | USD |
CY2018Q4 | us-gaap |
Other Liabilities Current
OtherLiabilitiesCurrent
|
260400000 | USD |
CY2019Q3 | us-gaap |
Liabilities Current
LiabilitiesCurrent
|
2082100000 | USD |
CY2018Q4 | us-gaap |
Liabilities Current
LiabilitiesCurrent
|
1644100000 | USD |
CY2019Q3 | us-gaap |
Long Term Debt Noncurrent
LongTermDebtNoncurrent
|
5535100000 | USD |
CY2018Q4 | us-gaap |
Long Term Debt Noncurrent
LongTermDebtNoncurrent
|
5246300000 | USD |
CY2019Q3 | us-gaap |
Deferred Tax Liabilities Noncurrent
DeferredTaxLiabilitiesNoncurrent
|
1703000000.0 | USD |
CY2018Q4 | us-gaap |
Deferred Tax Liabilities Noncurrent
DeferredTaxLiabilitiesNoncurrent
|
1603100000 | USD |
CY2019Q3 | us-gaap |
Regulatory Liability Noncurrent
RegulatoryLiabilityNoncurrent
|
1262100000 | USD |
CY2018Q4 | us-gaap |
Regulatory Liability Noncurrent
RegulatoryLiabilityNoncurrent
|
1350500000 | USD |
CY2019Q3 | us-gaap |
Pension And Other Postretirement Defined Benefit Plans Liabilities Noncurrent
PensionAndOtherPostretirementDefinedBenefitPlansLiabilitiesNoncurrent
|
476300000 | USD |
CY2018Q4 | us-gaap |
Pension And Other Postretirement Defined Benefit Plans Liabilities Noncurrent
PensionAndOtherPostretirementDefinedBenefitPlansLiabilitiesNoncurrent
|
509100000 | USD |
CY2019Q3 | us-gaap |
Other Liabilities Noncurrent
OtherLiabilitiesNoncurrent
|
305600000 | USD |
CY2018Q4 | us-gaap |
Other Liabilities Noncurrent
OtherLiabilitiesNoncurrent
|
287200000 | USD |
CY2019Q3 | us-gaap |
Deferred Credits And Other Liabilities
DeferredCreditsAndOtherLiabilities
|
3747000000.0 | USD |
CY2018Q4 | us-gaap |
Deferred Credits And Other Liabilities
DeferredCreditsAndOtherLiabilities
|
3749900000 | USD |
CY2019Q3 | us-gaap |
Commitments And Contingencies
CommitmentsAndContingencies
|
USD | |
CY2018Q4 | us-gaap |
Commitments And Contingencies
CommitmentsAndContingencies
|
USD | |
CY2019Q3 | us-gaap |
Common Stock Value
CommonStockValue
|
2400000 | USD |
CY2018Q4 | us-gaap |
Common Stock Value
CommonStockValue
|
2400000 | USD |
CY2019Q3 | us-gaap |
Additional Paid In Capital Common Stock
AdditionalPaidInCapitalCommonStock
|
2236900000 | USD |
CY2018Q4 | us-gaap |
Additional Paid In Capital Common Stock
AdditionalPaidInCapitalCommonStock
|
2045500000 | USD |
CY2019Q3 | us-gaap |
Retained Earnings Accumulated Deficit
RetainedEarningsAccumulatedDeficit
|
2739100000 | USD |
CY2018Q4 | us-gaap |
Retained Earnings Accumulated Deficit
RetainedEarningsAccumulatedDeficit
|
2545900000 | USD |
CY2019Q3 | us-gaap |
Accumulated Other Comprehensive Income Loss Net Of Tax
AccumulatedOtherComprehensiveIncomeLossNetOfTax
|
1000000.0 | USD |
CY2018Q4 | us-gaap |
Accumulated Other Comprehensive Income Loss Net Of Tax
AccumulatedOtherComprehensiveIncomeLossNetOfTax
|
1700000 | USD |
CY2019Q3 | us-gaap |
Common Stock Held In Trust
CommonStockHeldInTrust
|
10200000 | USD |
CY2018Q4 | us-gaap |
Common Stock Held In Trust
CommonStockHeldInTrust
|
9800000 | USD |
CY2019Q3 | us-gaap |
Stockholders Equity
StockholdersEquity
|
4969200000 | USD |
CY2018Q4 | us-gaap |
Stockholders Equity
StockholdersEquity
|
4585700000 | USD |
CY2019Q3 | us-gaap |
Minority Interest Amount Represented By Preferred Stock
MinorityInterestAmountRepresentedByPreferredStock
|
200000000.0 | USD |
CY2018Q4 | us-gaap |
Minority Interest Amount Represented By Preferred Stock
MinorityInterestAmountRepresentedByPreferredStock
|
200000000.0 | USD |
CY2019Q3 | us-gaap |
Stockholders Equity Including Portion Attributable To Noncontrolling Interest
StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest
|
5169200000 | USD |
CY2018Q4 | us-gaap |
Stockholders Equity Including Portion Attributable To Noncontrolling Interest
StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest
|
4785700000 | USD |
CY2019Q3 | us-gaap |
Liabilities And Stockholders Equity
LiabilitiesAndStockholdersEquity
|
16533400000 | USD |
CY2018Q4 | us-gaap |
Liabilities And Stockholders Equity
LiabilitiesAndStockholdersEquity
|
15426000000.0 | USD |
us-gaap |
Net Income Loss
NetIncomeLoss
|
453400000 | USD | |
us-gaap |
Net Income Loss
NetIncomeLoss
|
434500000 | USD | |
us-gaap |
Depreciation Depletion And Amortization
DepreciationDepletionAndAmortization
|
423600000 | USD | |
us-gaap |
Depreciation Depletion And Amortization
DepreciationDepletionAndAmortization
|
376400000 | USD | |
us-gaap |
Deferred Income Taxes And Tax Credits
DeferredIncomeTaxesAndTaxCredits
|
53200000 | USD | |
us-gaap |
Deferred Income Taxes And Tax Credits
DeferredIncomeTaxesAndTaxCredits
|
62500000 | USD | |
us-gaap |
Increase Decrease In Allowance For Equity Funds Used During Construction
IncreaseDecreaseInAllowanceForEquityFundsUsedDuringConstruction
|
46300000 | USD | |
us-gaap |
Increase Decrease In Allowance For Equity Funds Used During Construction
IncreaseDecreaseInAllowanceForEquityFundsUsedDuringConstruction
|
35500000 | USD | |
us-gaap |
Other Noncash Income Expense
OtherNoncashIncomeExpense
|
-17100000 | USD | |
us-gaap |
Other Noncash Income Expense
OtherNoncashIncomeExpense
|
-2100000 | USD | |
us-gaap |
Increase Decrease In Accounts Receivable
IncreaseDecreaseInAccountsReceivable
|
359200000 | USD | |
us-gaap |
Increase Decrease In Accounts Receivable
IncreaseDecreaseInAccountsReceivable
|
325200000 | USD | |
us-gaap |
Increase Decrease In Accounts Payable
IncreaseDecreaseInAccountsPayable
|
-27900000 | USD | |
us-gaap |
Increase Decrease In Accounts Payable
IncreaseDecreaseInAccountsPayable
|
-47300000 | USD | |
us-gaap |
Increase Decrease In Deferred Income Taxes
IncreaseDecreaseInDeferredIncomeTaxes
|
-45400000 | USD | |
us-gaap |
Increase Decrease In Deferred Income Taxes
IncreaseDecreaseInDeferredIncomeTaxes
|
-32700000 | USD | |
us-gaap |
Increase Decrease In Other Operating Capital Net
IncreaseDecreaseInOtherOperatingCapitalNet
|
50100000 | USD | |
us-gaap |
Increase Decrease In Other Operating Capital Net
IncreaseDecreaseInOtherOperatingCapitalNet
|
58000000.0 | USD | |
us-gaap |
Net Cash Provided By Used In Operating Activities
NetCashProvidedByUsedInOperatingActivities
|
509200000 | USD | |
us-gaap |
Net Cash Provided By Used In Operating Activities
NetCashProvidedByUsedInOperatingActivities
|
442200000 | USD | |
us-gaap |
Payments To Acquire Property Plant And Equipment
PaymentsToAcquirePropertyPlantAndEquipment
|
1003900000 | USD | |
us-gaap |
Payments To Acquire Property Plant And Equipment
PaymentsToAcquirePropertyPlantAndEquipment
|
1080200000 | USD | |
us-gaap |
Payments To Acquire Other Productive Assets
PaymentsToAcquireOtherProductiveAssets
|
71400000 | USD | |
us-gaap |
Payments To Acquire Other Productive Assets
PaymentsToAcquireOtherProductiveAssets
|
47800000 | USD | |
us-gaap |
Proceeds From Collection Of Retained Interest In Securitized Receivables
ProceedsFromCollectionOfRetainedInterestInSecuritizedReceivables
|
255900000 | USD | |
us-gaap |
Proceeds From Collection Of Retained Interest In Securitized Receivables
ProceedsFromCollectionOfRetainedInterestInSecuritizedReceivables
|
337200000 | USD | |
us-gaap |
Payments For Proceeds From Other Investing Activities
PaymentsForProceedsFromOtherInvestingActivities
|
41700000 | USD | |
us-gaap |
Payments For Proceeds From Other Investing Activities
PaymentsForProceedsFromOtherInvestingActivities
|
24900000 | USD | |
us-gaap |
Net Cash Provided By Used In Investing Activities
NetCashProvidedByUsedInInvestingActivities
|
-861100000 | USD | |
us-gaap |
Net Cash Provided By Used In Investing Activities
NetCashProvidedByUsedInInvestingActivities
|
-815700000 | USD | |
us-gaap |
Payments Of Dividends Common Stock
PaymentsOfDividendsCommonStock
|
252500000 | USD | |
us-gaap |
Payments Of Dividends Common Stock
PaymentsOfDividendsCommonStock
|
233300000 | USD | |
us-gaap |
Proceeds From Issuance Of Common Stock
ProceedsFromIssuanceOfCommonStock
|
185400000 | USD | |
us-gaap |
Proceeds From Issuance Of Common Stock
ProceedsFromIssuanceOfCommonStock
|
191300000 | USD | |
us-gaap |
Proceeds From Issuance Of Long Term Debt
ProceedsFromIssuanceOfLongTermDebt
|
950000000.0 | USD | |
us-gaap |
Proceeds From Issuance Of Long Term Debt
ProceedsFromIssuanceOfLongTermDebt
|
1500000000.0 | USD | |
us-gaap |
Repayments Of Long Term Debt
RepaymentsOfLongTermDebt
|
253500000 | USD | |
us-gaap |
Repayments Of Long Term Debt
RepaymentsOfLongTermDebt
|
603100000 | USD | |
us-gaap |
Proceeds From Repayments Of Short Term Debt
ProceedsFromRepaymentsOfShortTermDebt
|
-91600000 | USD | |
us-gaap |
Proceeds From Repayments Of Short Term Debt
ProceedsFromRepaymentsOfShortTermDebt
|
-278400000 | USD | |
us-gaap |
Proceeds From Payments For Other Financing Activities
ProceedsFromPaymentsForOtherFinancingActivities
|
-11700000 | USD | |
us-gaap |
Proceeds From Payments For Other Financing Activities
ProceedsFromPaymentsForOtherFinancingActivities
|
10900000 | USD | |
us-gaap |
Net Cash Provided By Used In Financing Activities
NetCashProvidedByUsedInFinancingActivities
|
526100000 | USD | |
us-gaap |
Net Cash Provided By Used In Financing Activities
NetCashProvidedByUsedInFinancingActivities
|
587400000 | USD | |
us-gaap |
Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Including Exchange Rate Effect
CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect
|
174200000 | USD | |
us-gaap |
Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Including Exchange Rate Effect
CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect
|
213900000 | USD | |
CY2018Q4 | us-gaap |
Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Including Disposal Group And Discontinued Operations
CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsIncludingDisposalGroupAndDiscontinuedOperations
|
25500000 | USD |
CY2017Q4 | us-gaap |
Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Including Disposal Group And Discontinued Operations
CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsIncludingDisposalGroupAndDiscontinuedOperations
|
33900000 | USD |
CY2019Q3 | us-gaap |
Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Including Disposal Group And Discontinued Operations
CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsIncludingDisposalGroupAndDiscontinuedOperations
|
199700000 | USD |
CY2018Q3 | us-gaap |
Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Including Disposal Group And Discontinued Operations
CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsIncludingDisposalGroupAndDiscontinuedOperations
|
247800000 | USD |
us-gaap |
Interest Paid Net
InterestPaidNet
|
194700000 | USD | |
us-gaap |
Interest Paid Net
InterestPaidNet
|
171600000 | USD | |
us-gaap |
Income Taxes Paid Net
IncomeTaxesPaidNet
|
-800000 | USD | |
us-gaap |
Income Taxes Paid Net
IncomeTaxesPaidNet
|
5000000.0 | USD | |
us-gaap |
Capital Expenditures Incurred But Not Yet Paid
CapitalExpendituresIncurredButNotYetPaid
|
254200000 | USD | |
us-gaap |
Capital Expenditures Incurred But Not Yet Paid
CapitalExpendituresIncurredButNotYetPaid
|
236200000 | USD | |
us-gaap |
Consideration Received For Beneficial Interest Obtained For Transferring Financial Asset
ConsiderationReceivedForBeneficialInterestObtainedForTransferringFinancialAsset
|
237000000.0 | USD | |
us-gaap |
Consideration Received For Beneficial Interest Obtained For Transferring Financial Asset
ConsiderationReceivedForBeneficialInterestObtainedForTransferringFinancialAsset
|
243700000 | USD | |
CY2019Q3 | us-gaap |
Regulatory Assets
RegulatoryAssets
|
1840000000.0 | USD |
us-gaap |
Use Of Estimates
UseOfEstimates
|
<span style="font-family:inherit;font-size:10pt;">In the opinion of management, all adjustments, which unless otherwise noted are normal and recurring in nature, necessary for a fair presentation of the results of operations, financial position and cash flows have been made. Results for the </span><span style="font-size:10pt;">nine</span><span style="font-family:inherit;font-size:10pt;"> months ended </span><span style="font-family:inherit;font-size:10pt;">September 30, 2019</span><span style="font-family:inherit;font-size:10pt;"> are not necessarily indicative of results that may be expected for the year ending </span><span style="font-family:inherit;font-size:10pt;">December 31, 2019</span>. A change in management’s estimates or assumptions could have a material impact on financial condition and results of operations during the period in which such change occurred. | ||
us-gaap |
Prior Period Reclassification Adjustment Description
PriorPeriodReclassificationAdjustmentDescription
|
Certain prior period amounts in the Financial Statements and Notes have been reclassified to conform to the current period presentation for comparative purposes. | ||
CY2019Q3 | us-gaap |
Money Market Funds At Carrying Value
MoneyMarketFundsAtCarryingValue
|
174400000 | USD |
CY2019Q3 | us-gaap |
Weighted Average Rate Domestic Deposit Money Market
WeightedAverageRateDomesticDepositMoneyMarket
|
0.020 | |
CY2019Q3 | us-gaap |
Regulatory Liabilities
RegulatoryLiabilities
|
1451000000.0 | USD |
CY2018Q4 | us-gaap |
Regulatory Liabilities
RegulatoryLiabilities
|
1493200000 | USD |
CY2018Q4 | us-gaap |
Regulatory Assets
RegulatoryAssets
|
1737300000 | USD |
CY2019Q3 | us-gaap |
Income Loss From Equity Method Investments
IncomeLossFromEquityMethodInvestments
|
11600000 | USD |
CY2018Q3 | us-gaap |
Income Loss From Equity Method Investments
IncomeLossFromEquityMethodInvestments
|
9800000 | USD |
us-gaap |
Income Loss From Equity Method Investments
IncomeLossFromEquityMethodInvestments
|
35200000 | USD | |
us-gaap |
Income Loss From Equity Method Investments
IncomeLossFromEquityMethodInvestments
|
41600000 | USD | |
CY2019Q1 | us-gaap |
Business Combination Recognized Identifiable Assets Acquired And Liabilities Assumed Net
BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedNet
|
21000000 | USD |
CY2019Q1 | us-gaap |
Business Combination Contingent Consideration Asset
BusinessCombinationContingentConsiderationAsset
|
8000000 | USD |
CY2019Q1 | lnt |
Contingent Consideration Payment Timing
ContingentConsiderationPaymentTiming
|
P2Y | |
CY2018Q4 | us-gaap |
Common Stock Shares Outstanding
CommonStockSharesOutstanding
|
236063279 | shares |
lnt |
Shares Of Stock Issued Shareowner Direct Plan
SharesOfStockIssuedShareownerDirectPlan
|
390630 | shares | |
us-gaap |
Stock Issued During Period Shares Employee Stock Purchase Plans
StockIssuedDuringPeriodSharesEmployeeStockPurchasePlans
|
101478 | shares | |
lnt |
Other Common Stock Activity
OtherCommonStockActivity
|
2738 | shares | |
CY2019Q3 | us-gaap |
Common Stock Shares Outstanding
CommonStockSharesOutstanding
|
240342949 | shares |
CY2019Q2 | us-gaap |
Stockholders Equity Including Portion Attributable To Noncontrolling Interest
StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest
|
4899600000 | USD |
CY2019Q3 | us-gaap |
Net Income Loss Available To Common Stockholders Basic
NetIncomeLossAvailableToCommonStockholdersBasic
|
226000000.0 | USD |
CY2019Q3 | us-gaap |
Dividends Common Stock
DividendsCommonStock
|
84700000 | USD |
CY2019Q3 | us-gaap |
Proceeds From Issuance Of Common Stock
ProceedsFromIssuanceOfCommonStock
|
124800000 | USD |
CY2019Q3 | us-gaap |
Stockholders Equity Other
StockholdersEquityOther
|
-3500000 | USD |
CY2019Q3 | us-gaap |
Stockholders Equity Including Portion Attributable To Noncontrolling Interest
StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest
|
5169200000 | USD |
CY2018Q2 | us-gaap |
Stockholders Equity Including Portion Attributable To Noncontrolling Interest
StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest
|
4550700000 | USD |
CY2018Q3 | us-gaap |
Net Income Loss Available To Common Stockholders Basic
NetIncomeLossAvailableToCommonStockholdersBasic
|
205500000 | USD |
CY2018Q3 | us-gaap |
Dividends Common Stock
DividendsCommonStock
|
78500000 | USD |
CY2018Q3 | us-gaap |
Proceeds From Issuance Of Common Stock
ProceedsFromIssuanceOfCommonStock
|
91200000 | USD |
CY2018Q3 | us-gaap |
Stockholders Equity Other
StockholdersEquityOther
|
-1800000 | USD |
CY2018Q3 | us-gaap |
Other Comprehensive Income Loss Net Of Tax
OtherComprehensiveIncomeLossNetOfTax
|
-300000 | USD |
CY2018Q3 | us-gaap |
Stockholders Equity Including Portion Attributable To Noncontrolling Interest
StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest
|
4770400000 | USD |
CY2018Q4 | us-gaap |
Stockholders Equity Including Portion Attributable To Noncontrolling Interest
StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest
|
4785700000 | USD |
us-gaap |
Net Income Loss Available To Common Stockholders Basic
NetIncomeLossAvailableToCommonStockholdersBasic
|
445700000 | USD | |
us-gaap |
Dividends Common Stock
DividendsCommonStock
|
252500000 | USD | |
us-gaap |
Proceeds From Issuance Of Common Stock
ProceedsFromIssuanceOfCommonStock
|
185400000 | USD | |
us-gaap |
Stockholders Equity Other
StockholdersEquityOther
|
-5600000 | USD | |
us-gaap |
Other Comprehensive Income Loss Net Of Tax
OtherComprehensiveIncomeLossNetOfTax
|
-700000 | USD | |
CY2019Q3 | us-gaap |
Stockholders Equity Including Portion Attributable To Noncontrolling Interest
StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest
|
5169200000 | USD |
CY2017Q4 | us-gaap |
Stockholders Equity Including Portion Attributable To Noncontrolling Interest
StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest
|
4382200000 | USD |
us-gaap |
Net Income Loss Available To Common Stockholders Basic
NetIncomeLossAvailableToCommonStockholdersBasic
|
426800000 | USD | |
us-gaap |
Dividends Common Stock
DividendsCommonStock
|
233300000 | USD | |
us-gaap |
Proceeds From Issuance Of Common Stock
ProceedsFromIssuanceOfCommonStock
|
191300000 | USD | |
us-gaap |
Stockholders Equity Other
StockholdersEquityOther
|
-3100000 | USD | |
us-gaap |
Other Comprehensive Income Loss Net Of Tax
OtherComprehensiveIncomeLossNetOfTax
|
300000 | USD | |
CY2018Q3 | us-gaap |
Stockholders Equity Including Portion Attributable To Noncontrolling Interest
StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest
|
4770400000 | USD |
lnt |
Agreement Term Of Extension
AgreementTermOfExtension
|
P1Y | ||
CY2019Q3 | us-gaap |
Line Of Credit Facility Current Borrowing Capacity
LineOfCreditFacilityCurrentBorrowingCapacity
|
1000000000 | USD |
us-gaap |
Shortterm Debt Average Outstanding Amount
ShorttermDebtAverageOutstandingAmount
|
476300000 | USD | |
us-gaap |
Shortterm Debt Average Outstanding Amount
ShorttermDebtAverageOutstandingAmount
|
207600000 | USD | |
us-gaap |
Short Term Debt Weighted Average Interest Rate Over Time
ShortTermDebtWeightedAverageInterestRateOverTime
|
0.026 | ||
us-gaap |
Short Term Debt Weighted Average Interest Rate Over Time
ShortTermDebtWeightedAverageInterestRateOverTime
|
0.021 | ||
CY2019Q3 | us-gaap |
Commercial Paper
CommercialPaper
|
349600000 | USD |
CY2019Q3 | us-gaap |
Short Term Debt Weighted Average Interest Rate
ShortTermDebtWeightedAverageInterestRate
|
0.023 | |
CY2019Q3 | us-gaap |
Line Of Credit Facility Remaining Borrowing Capacity
LineOfCreditFacilityRemainingBorrowingCapacity
|
650400000 | USD |
CY2019Q3 | us-gaap |
Shortterm Debt Maximum Amount Outstanding During Period
ShorttermDebtMaximumAmountOutstandingDuringPeriod
|
471700000 | USD |
CY2018Q3 | us-gaap |
Shortterm Debt Maximum Amount Outstanding During Period
ShorttermDebtMaximumAmountOutstandingDuringPeriod
|
153300000 | USD |
CY2019Q3 | us-gaap |
Shortterm Debt Average Outstanding Amount
ShorttermDebtAverageOutstandingAmount
|
399500000 | USD |
CY2018Q3 | us-gaap |
Shortterm Debt Average Outstanding Amount
ShorttermDebtAverageOutstandingAmount
|
80800000 | USD |
CY2019Q3 | us-gaap |
Short Term Debt Weighted Average Interest Rate Over Time
ShortTermDebtWeightedAverageInterestRateOverTime
|
0.025 | |
CY2018Q3 | us-gaap |
Short Term Debt Weighted Average Interest Rate Over Time
ShortTermDebtWeightedAverageInterestRateOverTime
|
0.022 | |
us-gaap |
Shortterm Debt Maximum Amount Outstanding During Period
ShorttermDebtMaximumAmountOutstandingDuringPeriod
|
600600000 | USD | |
us-gaap |
Shortterm Debt Maximum Amount Outstanding During Period
ShorttermDebtMaximumAmountOutstandingDuringPeriod
|
446500000 | USD | |
CY2019Q3 | us-gaap |
Operating Lease Right Of Use Asset
OperatingLeaseRightOfUseAsset
|
17000000 | USD |
CY2019Q3 | us-gaap |
Operating Lease Liability Current
OperatingLeaseLiabilityCurrent
|
2000000 | USD |
CY2019Q3 | us-gaap |
Operating Lease Liability Noncurrent
OperatingLeaseLiabilityNoncurrent
|
15000000 | USD |
CY2019Q3 | us-gaap |
Operating Lease Liability
OperatingLeaseLiability
|
17000000 | USD |
CY2019Q3 | us-gaap |
Operating Lease Weighted Average Remaining Lease Term1
OperatingLeaseWeightedAverageRemainingLeaseTerm1
|
P11Y | |
CY2019Q3 | us-gaap |
Lessee Operating Lease Discount Rate
LesseeOperatingLeaseDiscountRate
|
0.04 | |
CY2019Q3 | us-gaap |
Operating Lease Cost
OperatingLeaseCost
|
1000000 | USD |
us-gaap |
Operating Lease Cost
OperatingLeaseCost
|
2000000 | USD | |
CY2019Q3 | us-gaap |
Lessee Operating Lease Liability Payments Remainder Of Fiscal Year
LesseeOperatingLeaseLiabilityPaymentsRemainderOfFiscalYear
|
0 | USD |
CY2019Q3 | us-gaap |
Lessee Operating Lease Liability Payments Due Year Two
LesseeOperatingLeaseLiabilityPaymentsDueYearTwo
|
2000000 | USD |
CY2019Q3 | us-gaap |
Lessee Operating Lease Liability Payments Due Year Three
LesseeOperatingLeaseLiabilityPaymentsDueYearThree
|
2000000 | USD |
CY2019Q3 | us-gaap |
Lessee Operating Lease Liability Payments Due Year Four
LesseeOperatingLeaseLiabilityPaymentsDueYearFour
|
2000000 | USD |
CY2019Q3 | us-gaap |
Lessee Operating Lease Liability Payments Due Year Five
LesseeOperatingLeaseLiabilityPaymentsDueYearFive
|
2000000 | USD |
CY2019Q3 | us-gaap |
Lessee Operating Lease Liability Payments Due After Year Five
LesseeOperatingLeaseLiabilityPaymentsDueAfterYearFive
|
13000000 | USD |
CY2019Q3 | us-gaap |
Lessee Operating Lease Liability Payments Due
LesseeOperatingLeaseLiabilityPaymentsDue
|
21000000 | USD |
CY2019Q3 | us-gaap |
Lessee Operating Lease Liability Undiscounted Excess Amount
LesseeOperatingLeaseLiabilityUndiscountedExcessAmount
|
4000000 | USD |
CY2019Q3 | us-gaap |
Operating Lease Liability
OperatingLeaseLiability
|
17000000 | USD |
CY2018Q4 | us-gaap |
Operating Leases Future Minimum Payments Due Current
OperatingLeasesFutureMinimumPaymentsDueCurrent
|
5000000 | USD |
CY2018Q4 | us-gaap |
Operating Leases Future Minimum Payments Due In Two Years
OperatingLeasesFutureMinimumPaymentsDueInTwoYears
|
5000000 | USD |
CY2018Q4 | us-gaap |
Operating Leases Future Minimum Payments Due In Three Years
OperatingLeasesFutureMinimumPaymentsDueInThreeYears
|
3000000 | USD |
CY2018Q4 | us-gaap |
Operating Leases Future Minimum Payments Due In Four Years
OperatingLeasesFutureMinimumPaymentsDueInFourYears
|
3000000 | USD |
CY2018Q4 | us-gaap |
Operating Leases Future Minimum Payments Due In Five Years
OperatingLeasesFutureMinimumPaymentsDueInFiveYears
|
2000000 | USD |
CY2018Q4 | us-gaap |
Operating Leases Future Minimum Payments Due Thereafter
OperatingLeasesFutureMinimumPaymentsDueThereafter
|
12000000 | USD |
CY2018Q4 | us-gaap |
Operating Leases Future Minimum Payments Due
OperatingLeasesFutureMinimumPaymentsDue
|
30000000 | USD |
CY2019Q3 | us-gaap |
Revenue From Contract With Customer Excluding Assessed Tax
RevenueFromContractWithCustomerExcludingAssessedTax
|
990200000 | USD |
CY2018Q3 | us-gaap |
Revenue From Contract With Customer Excluding Assessed Tax
RevenueFromContractWithCustomerExcludingAssessedTax
|
928600000 | USD |
us-gaap |
Revenue From Contract With Customer Excluding Assessed Tax
RevenueFromContractWithCustomerExcludingAssessedTax
|
2767600000 | USD | |
us-gaap |
Revenue From Contract With Customer Excluding Assessed Tax
RevenueFromContractWithCustomerExcludingAssessedTax
|
2661000000.0 | USD | |
CY2019Q3 | us-gaap |
Effective Income Tax Rate Reconciliation At Federal Statutory Income Tax Rate
EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate
|
0.210 | |
CY2018Q3 | us-gaap |
Effective Income Tax Rate Reconciliation At Federal Statutory Income Tax Rate
EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate
|
0.210 | |
CY2019Q3 | us-gaap |
Effective Income Tax Rate Reconciliation State And Local Income Taxes
EffectiveIncomeTaxRateReconciliationStateAndLocalIncomeTaxes
|
0.070 | |
CY2018Q3 | us-gaap |
Effective Income Tax Rate Reconciliation State And Local Income Taxes
EffectiveIncomeTaxRateReconciliationStateAndLocalIncomeTaxes
|
0.069 | |
CY2019Q3 | us-gaap |
Effective Income Tax Rate Reconciliation Tax Credits
EffectiveIncomeTaxRateReconciliationTaxCredits
|
0.093 | |
CY2018Q3 | us-gaap |
Effective Income Tax Rate Reconciliation Tax Credits
EffectiveIncomeTaxRateReconciliationTaxCredits
|
0.054 | |
CY2019Q3 | lnt |
Effective Income Tax Rate Reconciliation Effect Of Rate Making On Property Related Differences
EffectiveIncomeTaxRateReconciliationEffectOfRateMakingOnPropertyRelatedDifferences
|
-0.056 | |
CY2018Q3 | lnt |
Effective Income Tax Rate Reconciliation Effect Of Rate Making On Property Related Differences
EffectiveIncomeTaxRateReconciliationEffectOfRateMakingOnPropertyRelatedDifferences
|
-0.063 | |
CY2019Q3 | lnt |
Effective Income Tax Rate Reconciliation Amortization Of Excess Deferred Taxes
EffectiveIncomeTaxRateReconciliationAmortizationOfExcessDeferredTaxes
|
-0.011 | |
CY2018Q3 | lnt |
Effective Income Tax Rate Reconciliation Amortization Of Excess Deferred Taxes
EffectiveIncomeTaxRateReconciliationAmortizationOfExcessDeferredTaxes
|
-0.001 | |
CY2019Q3 | us-gaap |
Effective Income Tax Rate Reconciliation Prior Year Income Taxes
EffectiveIncomeTaxRateReconciliationPriorYearIncomeTaxes
|
-0.018 | |
CY2018Q3 | us-gaap |
Effective Income Tax Rate Reconciliation Prior Year Income Taxes
EffectiveIncomeTaxRateReconciliationPriorYearIncomeTaxes
|
-0.057 | |
CY2019Q3 | lnt |
Effective Income Tax Rate Reconciliation Tax Benefit Rider
EffectiveIncomeTaxRateReconciliationTaxBenefitRider
|
-0.008 | |
CY2018Q3 | lnt |
Effective Income Tax Rate Reconciliation Tax Benefit Rider
EffectiveIncomeTaxRateReconciliationTaxBenefitRider
|
-0.023 | |
CY2019Q3 | us-gaap |
Effective Income Tax Rate Reconciliation Other Reconciling Items Percent
EffectiveIncomeTaxRateReconciliationOtherReconcilingItemsPercent
|
0 | |
CY2018Q3 | us-gaap |
Effective Income Tax Rate Reconciliation Other Reconciling Items Percent
EffectiveIncomeTaxRateReconciliationOtherReconcilingItemsPercent
|
-0.025 | |
CY2019Q3 | us-gaap |
Effective Income Tax Rate Reconciliation Other Adjustments
EffectiveIncomeTaxRateReconciliationOtherAdjustments
|
-0.002 | |
CY2018Q3 | us-gaap |
Effective Income Tax Rate Reconciliation Other Adjustments
EffectiveIncomeTaxRateReconciliationOtherAdjustments
|
-0.003 | |
CY2019Q3 | us-gaap |
Effective Income Tax Rate Continuing Operations
EffectiveIncomeTaxRateContinuingOperations
|
0.092 | |
CY2018Q3 | us-gaap |
Effective Income Tax Rate Continuing Operations
EffectiveIncomeTaxRateContinuingOperations
|
0.053 | |
us-gaap |
Effective Income Tax Rate Reconciliation At Federal Statutory Income Tax Rate
EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate
|
0.210 | ||
us-gaap |
Effective Income Tax Rate Reconciliation At Federal Statutory Income Tax Rate
EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate
|
0.210 | ||
us-gaap |
Effective Income Tax Rate Reconciliation State And Local Income Taxes
EffectiveIncomeTaxRateReconciliationStateAndLocalIncomeTaxes
|
0.071 | ||
us-gaap |
Effective Income Tax Rate Reconciliation State And Local Income Taxes
EffectiveIncomeTaxRateReconciliationStateAndLocalIncomeTaxes
|
0.069 | ||
us-gaap |
Effective Income Tax Rate Reconciliation Tax Credits
EffectiveIncomeTaxRateReconciliationTaxCredits
|
0.091 | ||
us-gaap |
Effective Income Tax Rate Reconciliation Tax Credits
EffectiveIncomeTaxRateReconciliationTaxCredits
|
0.054 | ||
lnt |
Effective Income Tax Rate Reconciliation Effect Of Rate Making On Property Related Differences
EffectiveIncomeTaxRateReconciliationEffectOfRateMakingOnPropertyRelatedDifferences
|
-0.057 | ||
lnt |
Effective Income Tax Rate Reconciliation Effect Of Rate Making On Property Related Differences
EffectiveIncomeTaxRateReconciliationEffectOfRateMakingOnPropertyRelatedDifferences
|
-0.067 | ||
lnt |
Effective Income Tax Rate Reconciliation Amortization Of Excess Deferred Taxes
EffectiveIncomeTaxRateReconciliationAmortizationOfExcessDeferredTaxes
|
-0.011 | ||
lnt |
Effective Income Tax Rate Reconciliation Amortization Of Excess Deferred Taxes
EffectiveIncomeTaxRateReconciliationAmortizationOfExcessDeferredTaxes
|
-0.003 | ||
us-gaap |
Effective Income Tax Rate Reconciliation Prior Year Income Taxes
EffectiveIncomeTaxRateReconciliationPriorYearIncomeTaxes
|
-0.007 | ||
us-gaap |
Effective Income Tax Rate Reconciliation Prior Year Income Taxes
EffectiveIncomeTaxRateReconciliationPriorYearIncomeTaxes
|
-0.026 | ||
lnt |
Effective Income Tax Rate Reconciliation Tax Benefit Rider
EffectiveIncomeTaxRateReconciliationTaxBenefitRider
|
-0.007 | ||
lnt |
Effective Income Tax Rate Reconciliation Tax Benefit Rider
EffectiveIncomeTaxRateReconciliationTaxBenefitRider
|
-0.022 | ||
us-gaap |
Effective Income Tax Rate Reconciliation Other Reconciling Items Percent
EffectiveIncomeTaxRateReconciliationOtherReconcilingItemsPercent
|
0 | ||
us-gaap |
Effective Income Tax Rate Reconciliation Other Reconciling Items Percent
EffectiveIncomeTaxRateReconciliationOtherReconcilingItemsPercent
|
-0.012 | ||
us-gaap |
Effective Income Tax Rate Reconciliation Other Adjustments
EffectiveIncomeTaxRateReconciliationOtherAdjustments
|
-0.010 | ||
us-gaap |
Effective Income Tax Rate Reconciliation Other Adjustments
EffectiveIncomeTaxRateReconciliationOtherAdjustments
|
-0.007 | ||
us-gaap |
Effective Income Tax Rate Continuing Operations
EffectiveIncomeTaxRateContinuingOperations
|
0.098 | ||
us-gaap |
Effective Income Tax Rate Continuing Operations
EffectiveIncomeTaxRateContinuingOperations
|
0.088 | ||
CY2019Q3 | us-gaap |
Allocated Share Based Compensation Expense
AllocatedShareBasedCompensationExpense
|
7500000 | USD |
CY2018Q3 | us-gaap |
Allocated Share Based Compensation Expense
AllocatedShareBasedCompensationExpense
|
4200000 | USD |
us-gaap |
Allocated Share Based Compensation Expense
AllocatedShareBasedCompensationExpense
|
15600000 | USD | |
us-gaap |
Allocated Share Based Compensation Expense
AllocatedShareBasedCompensationExpense
|
12600000 | USD | |
CY2019Q3 | us-gaap |
Employee Service Share Based Compensation Tax Benefit From Compensation Expense
EmployeeServiceShareBasedCompensationTaxBenefitFromCompensationExpense
|
2100000 | USD |
CY2018Q3 | us-gaap |
Employee Service Share Based Compensation Tax Benefit From Compensation Expense
EmployeeServiceShareBasedCompensationTaxBenefitFromCompensationExpense
|
1200000 | USD |
us-gaap |
Employee Service Share Based Compensation Tax Benefit From Compensation Expense
EmployeeServiceShareBasedCompensationTaxBenefitFromCompensationExpense
|
4400000 | USD | |
us-gaap |
Employee Service Share Based Compensation Tax Benefit From Compensation Expense
EmployeeServiceShareBasedCompensationTaxBenefitFromCompensationExpense
|
3600000 | USD | |
CY2019Q3 | us-gaap |
Employee Service Share Based Compensation Nonvested Awards Total Compensation Cost Not Yet Recognized
EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognized
|
7200000 | USD |
CY2018Q4 | us-gaap |
Asset Retirement Obligation
AssetRetirementObligation
|
177500000 | USD |
us-gaap |
Asset Retirement Obligation Revision Of Estimate
AssetRetirementObligationRevisionOfEstimate
|
-5800000 | USD | |
us-gaap |
Asset Retirement Obligation Liabilities Settled
AssetRetirementObligationLiabilitiesSettled
|
5900000 | USD | |
us-gaap |
Asset Retirement Obligation Liabilities Incurred
AssetRetirementObligationLiabilitiesIncurred
|
26200000 | USD | |
us-gaap |
Asset Retirement Obligation Accretion Expense
AssetRetirementObligationAccretionExpense
|
5300000 | USD | |
CY2019Q3 | us-gaap |
Asset Retirement Obligation
AssetRetirementObligation
|
197300000 | USD |
CY2019Q3 | us-gaap |
Money Market Funds At Carrying Value
MoneyMarketFundsAtCarryingValue
|
174400000 | USD |
CY2018Q4 | us-gaap |
Money Market Funds At Carrying Value
MoneyMarketFundsAtCarryingValue
|
0 | USD |
CY2019Q3 | lnt |
Fair Value Of Deferred Proceeds Of Receivables Sold
FairValueOfDeferredProceedsOfReceivablesSold
|
237000000.0 | USD |
CY2018Q4 | lnt |
Fair Value Of Deferred Proceeds Of Receivables Sold
FairValueOfDeferredProceedsOfReceivablesSold
|
119400000 | USD |
CY2019Q3 | us-gaap |
Long Term Debt Fair Value
LongTermDebtFairValue
|
7018400000 | USD |
CY2018Q4 | us-gaap |
Long Term Debt Fair Value
LongTermDebtFairValue
|
5860800000 | USD |
us-gaap |
Long Term Purchase Commitment Amount
LongTermPurchaseCommitmentAmount
|
1230000000 | USD | |
CY2019Q3 | lnt |
Individual Commitments Incurred
IndividualCommitmentsIncurred
|
1000000 | USD |
CY2019Q3 | lnt |
Present Value Abandonment Obligation
PresentValueAbandonmentObligation
|
38000000 | USD |
CY2019Q3 | us-gaap |
Regulated And Unregulated Operating Revenue
RegulatedAndUnregulatedOperatingRevenue
|
990200000 | USD |
CY2019Q3 | us-gaap |
Operating Income Loss
OperatingIncomeLoss
|
290200000 | USD |
CY2019Q3 | us-gaap |
Net Income Loss Available To Common Stockholders Basic
NetIncomeLossAvailableToCommonStockholdersBasic
|
226000000.0 | USD |
CY2018Q3 | us-gaap |
Regulated And Unregulated Operating Revenue
RegulatedAndUnregulatedOperatingRevenue
|
928600000 | USD |
CY2018Q3 | us-gaap |
Operating Income Loss
OperatingIncomeLoss
|
256100000 | USD |
CY2018Q3 | us-gaap |
Net Income Loss Available To Common Stockholders Basic
NetIncomeLossAvailableToCommonStockholdersBasic
|
205500000 | USD |
us-gaap |
Regulated And Unregulated Operating Revenue
RegulatedAndUnregulatedOperatingRevenue
|
2767600000 | USD | |
us-gaap |
Operating Income Loss
OperatingIncomeLoss
|
616800000 | USD | |
us-gaap |
Net Income Loss Available To Common Stockholders Basic
NetIncomeLossAvailableToCommonStockholdersBasic
|
445700000 | USD | |
us-gaap |
Regulated And Unregulated Operating Revenue
RegulatedAndUnregulatedOperatingRevenue
|
2661000000.0 | USD | |
us-gaap |
Operating Income Loss
OperatingIncomeLoss
|
573000000.0 | USD | |
us-gaap |
Net Income Loss Available To Common Stockholders Basic
NetIncomeLossAvailableToCommonStockholdersBasic
|
426800000 | USD |