$WELPP
WISCONSIN ELECTRIC POWER CO Stock $welpp

$welpp Overview Financials Valuation SEC Filings Company Website

2019 Q4 Form 10-K Financial Statement

#000010781520000091 Filed on February 27, 2020

Income Statement

Concept	2019 Q4	2018 Q4	2018 Q3
Revenue	$860.1M	$903.3M	$924.0M
YoY Change	-4.78%	-3.96%	-2.1%
Cost Of Revenue			$316.5M
YoY Change			-5.94%
Gross Profit			$607.5M
YoY Change			0.03%
Gross Profit Margin			65.75%
Selling, General & Admin
YoY Change
% of Gross Profit
Research & Development
YoY Change
% of Gross Profit
Depreciation & Amortization			$87.40M
YoY Change			5.3%
% of Gross Profit			14.39%
Operating Expenses
YoY Change
Operating Profit	$153.6M	$53.80M	$107.8M
YoY Change	185.5%	-60.12%	-34.59%
Interest Expense			$29.90M
YoY Change			2.05%
% of Operating Profit			27.74%
Other Income/Expense, Net			-$24.80M
YoY Change			-1.59%
Pretax Income			$83.00M
YoY Change			-40.54%
Income Tax			-$20.50M
% Of Pretax Income			-24.7%
Net Earnings
YoY Change
Net Earnings / Revenue
Basic Earnings Per Share
Diluted Earnings Per Share
COMMON SHARES
Basic Shares Outstanding			33.29M shares
Diluted Shares Outstanding

Balance Sheet

Concept	2019 Q4	2018 Q4	2018 Q3
SHORT-TERM ASSETS
Cash & Short-Term Investments
YoY Change
Cash & Equivalents	$19.10M	$20.20M	$4.100M
Short-Term Investments
Other Short-Term Assets	$33.60M	$31.60M	$10.40M
YoY Change	6.33%	236.17%	44.44%
Inventory
Prepaid Expenses		$163.7M	$93.70M
Receivables	$434.6M	$472.3M
Other Receivables
Total Short-Term Assets	$908.0M	$1.016B	$915.2M
YoY Change	-10.66%	-2.24%	-0.24%
LONG-TERM ASSETS
Property, Plant & Equipment	$9.587B	$9.529B	$9.450B
YoY Change	0.61%	-4.78%	-4.62%
Goodwill
YoY Change
Intangibles
YoY Change
Long-Term Investments
YoY Change
Other Assets	$110.9M	$90.90M	$97.70M
YoY Change	22.0%	1.68%	15.62%
Total Long-Term Assets	$12.45B	$12.52B	$12.44B
YoY Change	-0.55%	3.64%	2.66%
TOTAL ASSETS
Total Short-Term Assets	$908.0M	$1.016B	$915.2M
Total Long-Term Assets	$12.45B	$12.52B	$12.44B
Total Assets	$13.36B	$13.54B	$13.36B
YoY Change	-1.31%	3.18%	2.45%
SHORT-TERM LIABILITIES
YoY Change
Accounts Payable	$267.6M	$248.9M	$225.2M
YoY Change	7.51%	-24.42%	-18.55%
Accrued Expenses
YoY Change
Deferred Revenue
YoY Change
Short-Term Debt
YoY Change
Long-Term Debt Due	$0.00	$250.0M	$0.00
YoY Change	-100.0%	0.0%	-100.0%
Total Short-Term Liabilities	$794.6M	$1.077B	$1.016B
YoY Change	-26.21%	-9.32%	12.18%
LONG-TERM LIABILITIES
Long-Term Debt	$2.759B	$2.460B	$2.414B
YoY Change	12.18%	1.96%	0.09%
Other Long-Term Liabilities	$281.0M	$284.3M	$291.8M
YoY Change	-1.16%	2.67%	7.48%
Total Long-Term Liabilities	$8.975B	$8.970B	$8.794B
YoY Change	0.05%	5.29%	0.95%
TOTAL LIABILITIES
Total Short-Term Liabilities	$794.6M	$1.077B	$1.016B
Total Long-Term Liabilities	$8.975B	$8.970B	$8.794B
Total Liabilities	$9.769B	$10.05B	$9.810B
YoY Change	-2.76%	3.5%	2.01%
SHAREHOLDERS EQUITY
Retained Earnings	$2.299B	$2.297B	$2.350B
YoY Change	0.09%	2.15%	4.95%
Common Stock	$1.262B	$1.164B	$332.9M
YoY Change	8.43%	2.52%	0.0%
Preferred Stock
YoY Change
Treasury Stock (at cost)
YoY Change
Treasury Stock Shares
Shareholders Equity	$3.592B	$3.491B	$3.545B
YoY Change
Total Liabilities & Shareholders Equity	$13.36B	$13.54B	$13.36B
YoY Change	-1.31%	3.18%	2.45%

Cashflow Statement

Concept	2019 Q4	2018 Q4	2018 Q3
OPERATING ACTIVITIES
Net Income
YoY Change
Depreciation, Depletion And Amortization			$87.40M
YoY Change			5.3%
Cash From Operating Activities
YoY Change
INVESTING ACTIVITIES
Capital Expenditures
YoY Change
Acquisitions
YoY Change
Other Investing Activities
YoY Change
Cash From Investing Activities
YoY Change
FINANCING ACTIVITIES
Cash Dividend Paid
YoY Change
Common Stock Issuance & Retirement, Net
YoY Change
Debt Paid & Issued, Net
YoY Change
Cash From Financing Activities
YoY Change
NET CHANGE
Cash From Operating Activities
Cash From Investing Activities
Cash From Financing Activities
Net Change In Cash
YoY Change
FREE CASH FLOW
Cash From Operating Activities
Capital Expenditures
Free Cash Flow
YoY Change

Facts In Submission

Frame	Concept Type	Concept / XBRL Key	Value	Unit
CY2019	dei	Entity Current Reporting Status EntityCurrentReportingStatus	Yes
CY2019	dei	Entity Address Address Line2 EntityAddressAddressLine2	P.O. Box 2046
CY2019	dei	Entity Address City Or Town EntityAddressCityOrTown	Milwaukee
CY2019	dei	Entity Address State Or Province EntityAddressStateOrProvince	WI
CY2019Q4	us-gaap	Common Stock Par Or Stated Value Per Share CommonStockParOrStatedValuePerShare	10
CY2019Q4	us-gaap	Common Stock Shares Authorized CommonStockSharesAuthorized	65000000	shares
CY2018Q4	us-gaap	Common Stock Shares Outstanding CommonStockSharesOutstanding	33289327	shares
CY2019	dei	Entity Address Address Line1 EntityAddressAddressLine1	231 West Michigan Street
CY2019Q4	us-gaap	Common Stock Shares Outstanding CommonStockSharesOutstanding	33289327	shares
CY2019	dei	Amendment Flag AmendmentFlag	false
CY2019	dei	Current Fiscal Year End Date CurrentFiscalYearEndDate	--12-31
CY2019	dei	Document Fiscal Period Focus DocumentFiscalPeriodFocus	FY
CY2019	dei	Document Fiscal Year Focus DocumentFiscalYearFocus	2019
CY2019	dei	Entity Central Index Key EntityCentralIndexKey	0000107815
CY2018Q4	us-gaap	Accumulated Depreciation Depletion And Amortization Property Plant And Equipment AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment	4505500000	USD
CY2019Q4	us-gaap	Accumulated Depreciation Depletion And Amortization Property Plant And Equipment AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment	4564000000	USD
CY2018Q4	us-gaap	Allowance For Doubtful Accounts Receivable Current AllowanceForDoubtfulAccountsReceivableCurrent	40900000	USD
CY2019Q4	us-gaap	Allowance For Doubtful Accounts Receivable Current AllowanceForDoubtfulAccountsReceivableCurrent	38100000	USD
CY2018	us-gaap	Defined Contribution Plan Cost Recognized DefinedContributionPlanCostRecognized	11900000	USD
CY2018Q4	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	0	USD
CY2018Q4	us-gaap	Unrecognized Tax Benefits Income Tax Penalties Accrued UnrecognizedTaxBenefitsIncomeTaxPenaltiesAccrued	0	USD
CY2017	us-gaap	Unrecognized Tax Benefits Income Tax Penalties Expense UnrecognizedTaxBenefitsIncomeTaxPenaltiesExpense	0	USD
CY2018	us-gaap	Unrecognized Tax Benefits Income Tax Penalties Expense UnrecognizedTaxBenefitsIncomeTaxPenaltiesExpense	0	USD
CY2018Q4	us-gaap	Unrecognized Tax Benefits Interest On Income Taxes Accrued UnrecognizedTaxBenefitsInterestOnIncomeTaxesAccrued	0	USD
CY2018	us-gaap	Unrecognized Tax Benefits Interest On Income Taxes Expense UnrecognizedTaxBenefitsInterestOnIncomeTaxesExpense	0	USD
CY2019	dei	Document Type DocumentType	10-K
CY2019	dei	Document Annual Report DocumentAnnualReport	true
CY2019	dei	Document Period End Date DocumentPeriodEndDate	2019-12-31
CY2019	dei	Document Transition Report DocumentTransitionReport	false
CY2019	dei	Entity File Number EntityFileNumber	001-01245
CY2019	dei	Entity Registrant Name EntityRegistrantName	WISCONSIN ELECTRIC POWER COMPANY
CY2019	dei	Entity Tax Identification Number EntityTaxIdentificationNumber	39-0476280
CY2019	dei	Entity Incorporation State Country Code EntityIncorporationStateCountryCode	WI
CY2019	dei	Entity Address Postal Zip Code EntityAddressPostalZipCode	53201
CY2019	dei	City Area Code CityAreaCode	414
CY2019	dei	Local Phone Number LocalPhoneNumber	221-2345
CY2019	dei	Entity Well Known Seasoned Issuer EntityWellKnownSeasonedIssuer	No
CY2019	dei	Entity Voluntary Filers EntityVoluntaryFilers	No
CY2019Q4	us-gaap	Capital Lease Obligations Current CapitalLeaseObligationsCurrent	57800000	USD
CY2019	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	305500000	USD
CY2019	dei	Entity Interactive Data Current EntityInteractiveDataCurrent	Yes
CY2019	dei	Entity Filer Category EntityFilerCategory	Non-accelerated Filer
CY2019	dei	Entity Small Business EntitySmallBusiness	false
CY2019	dei	Entity Emerging Growth Company EntityEmergingGrowthCompany	false
CY2019	dei	Entity Shell Company EntityShellCompany	false
CY2019Q2	dei	Entity Public Float EntityPublicFloat	0	USD
CY2020Q1	dei	Entity Common Stock Shares Outstanding EntityCommonStockSharesOutstanding	33289327	shares
CY2019	us-gaap	Revenues Revenues	3496700000	USD
CY2018	us-gaap	Revenues Revenues	3625000000.0	USD
CY2017	us-gaap	Revenues Revenues	3711700000	USD
CY2019	us-gaap	Cost Of Goods And Services Sold CostOfGoodsAndServicesSold	1190700000	USD
CY2018	us-gaap	Cost Of Goods And Services Sold CostOfGoodsAndServicesSold	1262100000	USD
CY2017	us-gaap	Cost Of Goods And Services Sold CostOfGoodsAndServicesSold	1286400000	USD
CY2019	us-gaap	Other Cost And Expense Operating OtherCostAndExpenseOperating	1053100000	USD
CY2018	us-gaap	Other Cost And Expense Operating OtherCostAndExpenseOperating	1502400000	USD
CY2017	us-gaap	Other Cost And Expense Operating OtherCostAndExpenseOperating	1352000000.0	USD
CY2019	us-gaap	Depreciation Depletion And Amortization DepreciationDepletionAndAmortization	384400000	USD
CY2018	us-gaap	Depreciation Depletion And Amortization DepreciationDepletionAndAmortization	348100000	USD
CY2017	us-gaap	Depreciation Depletion And Amortization DepreciationDepletionAndAmortization	331600000	USD
CY2019	us-gaap	Taxes Excluding Income And Excise Taxes TaxesExcludingIncomeAndExciseTaxes	108300000	USD
CY2018	us-gaap	Taxes Excluding Income And Excise Taxes TaxesExcludingIncomeAndExciseTaxes	109900000	USD
CY2017	us-gaap	Taxes Excluding Income And Excise Taxes TaxesExcludingIncomeAndExciseTaxes	109600000	USD
CY2019	us-gaap	Utilities Operating Expense UtilitiesOperatingExpense	2736500000	USD
CY2018	us-gaap	Utilities Operating Expense UtilitiesOperatingExpense	3222500000	USD
CY2017	us-gaap	Utilities Operating Expense UtilitiesOperatingExpense	3079600000	USD
CY2019	us-gaap	Operating Income Loss OperatingIncomeLoss	760200000	USD
CY2018	us-gaap	Operating Income Loss OperatingIncomeLoss	402500000	USD
CY2017	us-gaap	Operating Income Loss OperatingIncomeLoss	632100000	USD
CY2019	us-gaap	Other Nonoperating Income Expense OtherNonoperatingIncomeExpense	22700000	USD
CY2018	us-gaap	Other Nonoperating Income Expense OtherNonoperatingIncomeExpense	20200000	USD
CY2017	us-gaap	Other Nonoperating Income Expense OtherNonoperatingIncomeExpense	13200000	USD
CY2019	us-gaap	Interest Expense InterestExpense	477400000	USD
CY2018	us-gaap	Interest Expense InterestExpense	120100000	USD
CY2017	us-gaap	Interest Expense InterestExpense	117300000	USD
CY2019	us-gaap	Nonoperating Income Expense NonoperatingIncomeExpense	-454700000	USD
CY2018	us-gaap	Nonoperating Income Expense NonoperatingIncomeExpense	-99900000	USD
CY2017	us-gaap	Nonoperating Income Expense NonoperatingIncomeExpense	-104100000	USD
CY2018Q4	us-gaap	Capital Lease Obligations Current CapitalLeaseObligationsCurrent	49900000	USD
CY2018	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	302600000	USD
CY2019	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	362100000	USD
CY2018	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	358300000	USD
CY2017	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	528000000.0	USD
CY2019	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	-57800000	USD
CY2018	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	-56900000	USD
CY2017	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	191200000	USD
CY2019	us-gaap	Income Loss From Continuing Operations IncomeLossFromContinuingOperations	363300000	USD
CY2018	us-gaap	Income Loss From Continuing Operations IncomeLossFromContinuingOperations	359500000	USD
CY2017	us-gaap	Income Loss From Continuing Operations IncomeLossFromContinuingOperations	336800000	USD
CY2019	us-gaap	Dividends Preferred Stock Cash DividendsPreferredStockCash	1200000	USD
CY2018	us-gaap	Dividends Preferred Stock Cash DividendsPreferredStockCash	1200000	USD
CY2017	us-gaap	Dividends Preferred Stock Cash DividendsPreferredStockCash	1200000	USD
CY2017	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	335600000	USD
CY2019Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	19100000	USD
CY2018Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	20200000	USD
CY2019Q4	us-gaap	Accounts Receivable Net Current AccountsReceivableNetCurrent	434600000	USD
CY2018Q4	us-gaap	Accounts Receivable Net Current AccountsReceivableNetCurrent	472300000	USD
CY2019Q4	us-gaap	Due From Related Parties Current DueFromRelatedPartiesCurrent	86500000	USD
CY2018Q4	us-gaap	Due From Related Parties Current DueFromRelatedPartiesCurrent	112400000	USD
CY2019Q4	us-gaap	Energy Related Inventory EnergyRelatedInventory	229800000	USD
CY2018Q4	us-gaap	Energy Related Inventory EnergyRelatedInventory	241400000	USD
CY2019Q4	us-gaap	Prepaid Taxes PrepaidTaxes	104400000	USD
CY2018Q4	us-gaap	Prepaid Taxes PrepaidTaxes	138400000	USD
CY2019Q4	us-gaap	Other Assets Current OtherAssetsCurrent	33600000	USD
CY2018Q4	us-gaap	Other Assets Current OtherAssetsCurrent	31600000	USD
CY2019Q4	us-gaap	Assets Current AssetsCurrent	908000000.0	USD
CY2018Q4	us-gaap	Assets Current AssetsCurrent	1016300000	USD
CY2019Q4	us-gaap	Property Plant And Equipment Net PropertyPlantAndEquipmentNet	9586700000	USD
CY2018Q4	us-gaap	Property Plant And Equipment Net PropertyPlantAndEquipmentNet	9528900000	USD
CY2019Q4	us-gaap	Regulatory Assets Noncurrent RegulatoryAssetsNoncurrent	2755200000	USD
CY2018Q4	us-gaap	Regulatory Assets Noncurrent RegulatoryAssetsNoncurrent	2902200000	USD
CY2019Q4	us-gaap	Other Assets Noncurrent OtherAssetsNoncurrent	110900000	USD
CY2018Q4	us-gaap	Other Assets Noncurrent OtherAssetsNoncurrent	90900000	USD
CY2019Q4	us-gaap	Assets Noncurrent AssetsNoncurrent	12452800000	USD
CY2018Q4	us-gaap	Assets Noncurrent AssetsNoncurrent	12522000000.0	USD
CY2019Q4	us-gaap	Assets Assets	13360800000	USD
CY2018Q4	us-gaap	Assets Assets	13538300000	USD
CY2019Q4	us-gaap	Commercial Paper CommercialPaper	115500000	USD
CY2018Q4	us-gaap	Commercial Paper CommercialPaper	134900000	USD
CY2019Q4	us-gaap	Long Term Debt Current LongTermDebtCurrent	0	USD
CY2018Q4	us-gaap	Long Term Debt Current LongTermDebtCurrent	250000000.0	USD
CY2019Q4	us-gaap	Accounts Payable Current AccountsPayableCurrent	267600000	USD
CY2018Q4	us-gaap	Accounts Payable Current AccountsPayableCurrent	248900000	USD
CY2019Q4	us-gaap	Due To Related Parties Current DueToRelatedPartiesCurrent	184500000	USD
CY2018Q4	us-gaap	Due To Related Parties Current DueToRelatedPartiesCurrent	226000000.0	USD
CY2018	us-gaap	Depreciation Amortization And Accretion Net DepreciationAmortizationAndAccretionNet	348100000	USD
CY2017	us-gaap	Depreciation Amortization And Accretion Net DepreciationAmortizationAndAccretionNet	331600000	USD
CY2019Q4	us-gaap	Employee Related Liabilities Current EmployeeRelatedLiabilitiesCurrent	51300000	USD
CY2018Q4	us-gaap	Employee Related Liabilities Current EmployeeRelatedLiabilitiesCurrent	50400000	USD
CY2019Q4	us-gaap	Accrued Income Taxes Current AccruedIncomeTaxesCurrent	12300000	USD
CY2018Q4	us-gaap	Accrued Income Taxes Current AccruedIncomeTaxesCurrent	13600000	USD
CY2019Q4	us-gaap	Other Liabilities Current OtherLiabilitiesCurrent	105600000	USD
CY2018Q4	us-gaap	Other Liabilities Current OtherLiabilitiesCurrent	103200000	USD
CY2019Q4	us-gaap	Liabilities Current LiabilitiesCurrent	794600000	USD
CY2018Q4	us-gaap	Liabilities Current LiabilitiesCurrent	1076900000	USD
CY2019Q4	us-gaap	Long Term Debt Noncurrent LongTermDebtNoncurrent	2759200000	USD
CY2018Q4	us-gaap	Long Term Debt Noncurrent LongTermDebtNoncurrent	2459600000	USD
CY2019Q4	us-gaap	Capital Lease Obligations Noncurrent CapitalLeaseObligationsNoncurrent	2783100000	USD
CY2018Q4	us-gaap	Capital Lease Obligations Noncurrent CapitalLeaseObligationsNoncurrent	2807200000	USD
CY2019Q4	us-gaap	Deferred Tax Liabilities Noncurrent DeferredTaxLiabilitiesNoncurrent	1347400000	USD
CY2018Q4	us-gaap	Deferred Tax Liabilities Noncurrent DeferredTaxLiabilitiesNoncurrent	1298300000	USD
CY2019Q4	us-gaap	Regulatory Liability Noncurrent RegulatoryLiabilityNoncurrent	1744200000	USD
CY2018Q4	us-gaap	Regulatory Liability Noncurrent RegulatoryLiabilityNoncurrent	2002300000	USD
CY2019Q4	us-gaap	Pension And Other Postretirement Defined Benefit Plans Liabilities Noncurrent PensionAndOtherPostretirementDefinedBenefitPlansLiabilitiesNoncurrent	59800000	USD
CY2018Q4	us-gaap	Pension And Other Postretirement Defined Benefit Plans Liabilities Noncurrent PensionAndOtherPostretirementDefinedBenefitPlansLiabilitiesNoncurrent	118500000	USD
CY2019Q4	us-gaap	Other Liabilities Noncurrent OtherLiabilitiesNoncurrent	281000000.0	USD
CY2018Q4	us-gaap	Other Liabilities Noncurrent OtherLiabilitiesNoncurrent	284300000	USD
CY2019Q4	us-gaap	Liabilities Noncurrent LiabilitiesNoncurrent	8974700000	USD
CY2018Q4	us-gaap	Liabilities Noncurrent LiabilitiesNoncurrent	8970200000	USD
CY2019Q4	us-gaap	Commitments And Contingencies CommitmentsAndContingencies		USD
CY2018Q4	us-gaap	Commitments And Contingencies CommitmentsAndContingencies		USD
CY2019Q4	us-gaap	Common Stock Value CommonStockValue	332900000	USD
CY2018Q4	us-gaap	Common Stock Value CommonStockValue	332900000	USD
CY2019Q4	us-gaap	Additional Paid In Capital Common Stock AdditionalPaidInCapitalCommonStock	929500000	USD
CY2018Q4	us-gaap	Additional Paid In Capital Common Stock AdditionalPaidInCapitalCommonStock	831300000	USD
CY2019Q4	us-gaap	Retained Earnings Accumulated Deficit RetainedEarningsAccumulatedDeficit	2298700000	USD
CY2018Q4	us-gaap	Retained Earnings Accumulated Deficit RetainedEarningsAccumulatedDeficit	2296600000	USD
CY2019Q4	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	3561100000	USD
CY2018Q4	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	3460800000	USD
CY2019Q4	us-gaap	Preferred Stock Value PreferredStockValue	30400000	USD
CY2018Q4	us-gaap	Preferred Stock Value PreferredStockValue	30400000	USD
CY2019Q4	us-gaap	Liabilities And Stockholders Equity LiabilitiesAndStockholdersEquity	13360800000	USD
CY2018Q4	us-gaap	Liabilities And Stockholders Equity LiabilitiesAndStockholdersEquity	13538300000	USD
CY2019	us-gaap	Income Loss From Continuing Operations IncomeLossFromContinuingOperations	363300000	USD
CY2018	us-gaap	Income Loss From Continuing Operations IncomeLossFromContinuingOperations	359500000	USD
CY2017	us-gaap	Income Loss From Continuing Operations IncomeLossFromContinuingOperations	336800000	USD
CY2019	us-gaap	Depreciation Amortization And Accretion Net DepreciationAmortizationAndAccretionNet	384400000	USD
CY2019	us-gaap	Pension And Other Postretirement Benefit Contributions PensionAndOtherPostretirementBenefitContributions	5500000	USD
CY2019	us-gaap	Deferred Income Taxes And Tax Credits DeferredIncomeTaxesAndTaxCredits	-131200000	USD
CY2018	us-gaap	Deferred Income Taxes And Tax Credits DeferredIncomeTaxesAndTaxCredits	-700000	USD
CY2017	us-gaap	Deferred Income Taxes And Tax Credits DeferredIncomeTaxesAndTaxCredits	109700000	USD
CY2019	wep	Payments For Transfer Of Liabilities To Related Party PaymentsForTransferOfLiabilitiesToRelatedParty	4500000	USD
CY2018	wep	Payments For Transfer Of Liabilities To Related Party PaymentsForTransferOfLiabilitiesToRelatedParty	10100000	USD
CY2017	wep	Payments For Transfer Of Liabilities To Related Party PaymentsForTransferOfLiabilitiesToRelatedParty	300000	USD
CY2019	us-gaap	Increase Decrease In Accounts And Other Receivables IncreaseDecreaseInAccountsAndOtherReceivables	-60300000	USD
CY2018	us-gaap	Increase Decrease In Accounts And Other Receivables IncreaseDecreaseInAccountsAndOtherReceivables	-34800000	USD
CY2017	us-gaap	Increase Decrease In Accounts And Other Receivables IncreaseDecreaseInAccountsAndOtherReceivables	64900000	USD
CY2019	us-gaap	Increase Decrease In Inventories IncreaseDecreaseInInventories	-11600000	USD
CY2018	us-gaap	Pension And Other Postretirement Benefit Contributions PensionAndOtherPostretirementBenefitContributions	6300000	USD
CY2017	us-gaap	Pension And Other Postretirement Benefit Contributions PensionAndOtherPostretirementBenefitContributions	8300000	USD
CY2018	us-gaap	Increase Decrease In Inventories IncreaseDecreaseInInventories	-9300000	USD
CY2017	us-gaap	Increase Decrease In Inventories IncreaseDecreaseInInventories	-20300000	USD
CY2019	us-gaap	Increase Decrease In Prepaid Taxes IncreaseDecreaseInPrepaidTaxes	-34000000.0	USD
CY2018	us-gaap	Increase Decrease In Prepaid Taxes IncreaseDecreaseInPrepaidTaxes	28300000	USD
CY2017	us-gaap	Increase Decrease In Prepaid Taxes IncreaseDecreaseInPrepaidTaxes	-500000	USD
CY2019	us-gaap	Increase Decrease In Other Current Assets IncreaseDecreaseInOtherCurrentAssets	5200000	USD
CY2018	us-gaap	Increase Decrease In Other Current Assets IncreaseDecreaseInOtherCurrentAssets	-13500000	USD
CY2017	us-gaap	Increase Decrease In Other Current Assets IncreaseDecreaseInOtherCurrentAssets	11800000	USD
CY2019	us-gaap	Increase Decrease In Accounts Payable IncreaseDecreaseInAccountsPayable	-22400000	USD
CY2018	us-gaap	Increase Decrease In Accounts Payable IncreaseDecreaseInAccountsPayable	13200000	USD
CY2017	us-gaap	Increase Decrease In Accounts Payable IncreaseDecreaseInAccountsPayable	45800000	USD
CY2019	us-gaap	Increase Decrease In Accrued Taxes Payable IncreaseDecreaseInAccruedTaxesPayable	-1300000	USD
CY2018	us-gaap	Increase Decrease In Accrued Taxes Payable IncreaseDecreaseInAccruedTaxesPayable	-41100000	USD
CY2017	us-gaap	Increase Decrease In Accrued Taxes Payable IncreaseDecreaseInAccruedTaxesPayable	12800000	USD
CY2019	us-gaap	Increase Decrease In Other Current Liabilities IncreaseDecreaseInOtherCurrentLiabilities	-1100000	USD
CY2018	us-gaap	Increase Decrease In Other Current Liabilities IncreaseDecreaseInOtherCurrentLiabilities	-5200000	USD
CY2017	us-gaap	Increase Decrease In Other Current Liabilities IncreaseDecreaseInOtherCurrentLiabilities	12200000	USD
CY2019	us-gaap	Other Operating Activities Cash Flow Statement OtherOperatingActivitiesCashFlowStatement	172000000.0	USD
CY2018	us-gaap	Other Operating Activities Cash Flow Statement OtherOperatingActivitiesCashFlowStatement	275500000	USD
CY2017	us-gaap	Other Operating Activities Cash Flow Statement OtherOperatingActivitiesCashFlowStatement	-86400000	USD
CY2019	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	854400000	USD
CY2018	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	962200000	USD
CY2017	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	698000000.0	USD
CY2019	us-gaap	Payments To Acquire Property Plant And Equipment PaymentsToAcquirePropertyPlantAndEquipment	590600000	USD
CY2018	us-gaap	Payments To Acquire Property Plant And Equipment PaymentsToAcquirePropertyPlantAndEquipment	603200000	USD
CY2017	us-gaap	Payments To Acquire Property Plant And Equipment PaymentsToAcquirePropertyPlantAndEquipment	596100000	USD
CY2019	us-gaap	Proceeds From Sale Of Productive Assets ProceedsFromSaleOfProductiveAssets	2000000.0	USD
CY2018	us-gaap	Proceeds From Sale Of Productive Assets ProceedsFromSaleOfProductiveAssets	1700000	USD
CY2017	us-gaap	Proceeds From Sale Of Productive Assets ProceedsFromSaleOfProductiveAssets	22900000	USD
CY2019	wep	Proceeds From Assets Transferred To Related Party ProceedsFromAssetsTransferredToRelatedParty	100000	USD
CY2018	wep	Proceeds From Assets Transferred To Related Party ProceedsFromAssetsTransferredToRelatedParty	8800000	USD
CY2017	wep	Proceeds From Assets Transferred To Related Party ProceedsFromAssetsTransferredToRelatedParty	0	USD
CY2019	wep	Proceeds From Payments For Transfer Of Assets To Related Party ProceedsFromPaymentsForTransferOfAssetsToRelatedParty	0	USD
CY2017	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-568200000	USD
CY2018	wep	Proceeds From Payments For Transfer Of Assets To Related Party ProceedsFromPaymentsForTransferOfAssetsToRelatedParty	-59800000	USD
CY2017	wep	Proceeds From Payments For Transfer Of Assets To Related Party ProceedsFromPaymentsForTransferOfAssetsToRelatedParty	0	USD
CY2019	us-gaap	Payments For Proceeds From Other Investing Activities PaymentsForProceedsFromOtherInvestingActivities	-11600000	USD
CY2018	us-gaap	Payments For Proceeds From Other Investing Activities PaymentsForProceedsFromOtherInvestingActivities	-12100000	USD
CY2017	us-gaap	Payments For Proceeds From Other Investing Activities PaymentsForProceedsFromOtherInvestingActivities	-5000000.0	USD
CY2019	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-576900000	USD
CY2018	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-640400000	USD
CY2019	us-gaap	Proceeds From Repayments Of Short Term Debt Maturing In Three Months Or Less ProceedsFromRepaymentsOfShortTermDebtMaturingInThreeMonthsOrLess	-19400000	USD
CY2018	us-gaap	Proceeds From Repayments Of Short Term Debt Maturing In Three Months Or Less ProceedsFromRepaymentsOfShortTermDebtMaturingInThreeMonthsOrLess	-76000000.0	USD
CY2017	us-gaap	Proceeds From Repayments Of Short Term Debt Maturing In Three Months Or Less ProceedsFromRepaymentsOfShortTermDebtMaturingInThreeMonthsOrLess	51900000	USD
CY2019	us-gaap	Repayments Of Other Short Term Debt RepaymentsOfOtherShortTermDebt	0	USD
CY2018	us-gaap	Repayments Of Other Short Term Debt RepaymentsOfOtherShortTermDebt	0	USD
CY2017	us-gaap	Repayments Of Other Short Term Debt RepaymentsOfOtherShortTermDebt	18500000	USD
CY2019	us-gaap	Proceeds From Issuance Of Long Term Debt ProceedsFromIssuanceOfLongTermDebt	300000000.0	USD
CY2018	us-gaap	Proceeds From Issuance Of Long Term Debt ProceedsFromIssuanceOfLongTermDebt	300000000.0	USD
CY2017	us-gaap	Proceeds From Issuance Of Long Term Debt ProceedsFromIssuanceOfLongTermDebt	0	USD
CY2019	us-gaap	Repayments Of Long Term Debt RepaymentsOfLongTermDebt	250000000.0	USD
CY2018	us-gaap	Repayments Of Long Term Debt RepaymentsOfLongTermDebt	250000000.0	USD
CY2017	us-gaap	Repayments Of Long Term Debt RepaymentsOfLongTermDebt	0	USD
CY2019	us-gaap	Finance Lease Principal Payments FinanceLeasePrincipalPayments	50500000	USD
CY2018	us-gaap	Finance Lease Principal Payments FinanceLeasePrincipalPayments	0	USD
CY2017	us-gaap	Finance Lease Principal Payments FinanceLeasePrincipalPayments	0	USD
CY2019	us-gaap	Proceeds From Contributions From Parent ProceedsFromContributionsFromParent	105000000.0	USD
CY2018	us-gaap	Proceeds From Contributions From Parent ProceedsFromContributionsFromParent	28000000.0	USD
CY2017	us-gaap	Proceeds From Contributions From Parent ProceedsFromContributionsFromParent	75000000.0	USD
CY2019	us-gaap	Payments Of Distributions To Affiliates PaymentsOfDistributionsToAffiliates	360000000.0	USD
CY2018	us-gaap	Payments Of Distributions To Affiliates PaymentsOfDistributionsToAffiliates	310000000.0	USD
CY2017	us-gaap	Payments Of Distributions To Affiliates PaymentsOfDistributionsToAffiliates	240000000.0	USD
CY2019	us-gaap	Proceeds From Payments For Other Financing Activities ProceedsFromPaymentsForOtherFinancingActivities	-3700000	USD
CY2018	us-gaap	Proceeds From Payments For Other Financing Activities ProceedsFromPaymentsForOtherFinancingActivities	-5900000	USD
CY2017	us-gaap	Proceeds From Payments For Other Financing Activities ProceedsFromPaymentsForOtherFinancingActivities	-1300000	USD
CY2019	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	-278600000	USD
CY2018	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	-313900000	USD
CY2017	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	-132900000	USD
CY2019	us-gaap	Cash And Cash Equivalents Period Increase Decrease CashAndCashEquivalentsPeriodIncreaseDecrease	-1100000	USD
CY2018	us-gaap	Cash And Cash Equivalents Period Increase Decrease CashAndCashEquivalentsPeriodIncreaseDecrease	7900000	USD
CY2017	us-gaap	Cash And Cash Equivalents Period Increase Decrease CashAndCashEquivalentsPeriodIncreaseDecrease	-3100000	USD
CY2018Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	20200000	USD
CY2017Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	12300000	USD
CY2018Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	20200000	USD
CY2016Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	15400000	USD
CY2019Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	19100000	USD
CY2017Q4	us-gaap	Stockholders Equity StockholdersEquity	3414300000	USD
CY2018	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	358300000	USD
CY2017Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	12300000	USD
CY2016Q4	us-gaap	Stockholders Equity StockholdersEquity	3524200000	USD
CY2017	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	335600000	USD
CY2017	us-gaap	Payments Of Distributions To Affiliates PaymentsOfDistributionsToAffiliates	240000000.0	USD
CY2016Q4	us-gaap	Cumulative Effect Of New Accounting Principle In Period Of Adoption CumulativeEffectOfNewAccountingPrincipleInPeriodOfAdoption	11900000	USD
CY2017	us-gaap	Proceeds From Contributions From Parent ProceedsFromContributionsFromParent	75000000.0	USD
CY2017	us-gaap	Stockholders Equity Other StockholdersEquityOther	-2100000	USD
CY2018	us-gaap	Payments Of Distributions To Affiliates PaymentsOfDistributionsToAffiliates	310000000.0	USD
CY2018	us-gaap	Proceeds From Contributions From Parent ProceedsFromContributionsFromParent	28000000.0	USD
CY2018	us-gaap	Stockholders Equity Other StockholdersEquityOther	-600000	USD
CY2018Q4	us-gaap	Stockholders Equity StockholdersEquity	3491200000	USD
CY2019	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	362100000	USD
CY2019	us-gaap	Payments Of Distributions To Affiliates PaymentsOfDistributionsToAffiliates	360000000.0	USD
CY2019	us-gaap	Proceeds From Contributions From Parent ProceedsFromContributionsFromParent	105000000.0	USD
CY2019	us-gaap	Stockholders Equity Other StockholdersEquityOther	-500000	USD
CY2019Q4	us-gaap	Stockholders Equity StockholdersEquity	3591500000	USD
CY2019	us-gaap	Use Of Estimates UseOfEstimates	We prepare our financial statements in conformity with GAAP. We make estimates and assumptions that affect the reported amounts of assets and liabilities, the disclosure of contingent assets and liabilities at the date of the financial statements, and the reported amounts of revenues and expenses during the reporting period. Actual results may differ from these estimates.
CY2019	wep	Debt Securities In Cash Equivalents Maximum Period Until Maturity DebtSecuritiesInCashEquivalentsMaximumPeriodUntilMaturity	P3M
CY2019Q4	us-gaap	Inventory Raw Materials And Supplies Net Of Reserves InventoryRawMaterialsAndSuppliesNetOfReserves	148300000	USD
CY2018Q4	us-gaap	Inventory Raw Materials And Supplies Net Of Reserves InventoryRawMaterialsAndSuppliesNetOfReserves	146100000	USD
CY2019Q4	us-gaap	Energy Related Inventory Other Fossil Fuel EnergyRelatedInventoryOtherFossilFuel	51100000	USD
CY2018Q4	us-gaap	Energy Related Inventory Other Fossil Fuel EnergyRelatedInventoryOtherFossilFuel	58700000	USD
CY2019Q4	us-gaap	Energy Related Inventory Natural Gas In Storage EnergyRelatedInventoryNaturalGasInStorage	30400000	USD
CY2018Q4	us-gaap	Energy Related Inventory Natural Gas In Storage EnergyRelatedInventoryNaturalGasInStorage	36600000	USD
CY2019Q4	us-gaap	Energy Related Inventory EnergyRelatedInventory	229800000	USD
CY2018Q4	us-gaap	Energy Related Inventory EnergyRelatedInventory	241400000	USD
CY2019	us-gaap	Public Utilities Property Plant And Equipment Disclosure Of Composite Depreciation Rate For Plants In Service PublicUtilitiesPropertyPlantAndEquipmentDisclosureOfCompositeDepreciationRateForPlantsInService	0.0311
CY2018	us-gaap	Public Utilities Property Plant And Equipment Disclosure Of Composite Depreciation Rate For Plants In Service PublicUtilitiesPropertyPlantAndEquipmentDisclosureOfCompositeDepreciationRateForPlantsInService	0.0318
CY2017	us-gaap	Public Utilities Property Plant And Equipment Disclosure Of Composite Depreciation Rate For Plants In Service PublicUtilitiesPropertyPlantAndEquipmentDisclosureOfCompositeDepreciationRateForPlantsInService	0.0295
CY2019	wep	Percentage Of Retail Jurisdictional Construction Work In Progress Expenditure Subject To Public Utilities Allowance For Funds Used During Construction Calculation PercentageOfRetailJurisdictionalConstructionWorkInProgressExpenditureSubjectToPublicUtilitiesAllowanceForFundsUsedDuringConstructionCalculation	0.50
CY2018Q4	us-gaap	Regulatory Assets RegulatoryAssets	2902300000	USD
CY2019Q4	us-gaap	Regulatory Assets Current RegulatoryAssetsCurrent	0	USD
CY2019	us-gaap	Public Utilities Allowance For Funds Used During Construction Capitalized Interest PublicUtilitiesAllowanceForFundsUsedDuringConstructionCapitalizedInterest	1500000	USD
CY2018	us-gaap	Public Utilities Allowance For Funds Used During Construction Capitalized Interest PublicUtilitiesAllowanceForFundsUsedDuringConstructionCapitalizedInterest	1500000	USD
CY2017	us-gaap	Public Utilities Allowance For Funds Used During Construction Capitalized Interest PublicUtilitiesAllowanceForFundsUsedDuringConstructionCapitalizedInterest	1200000	USD
CY2019	us-gaap	Public Utilities Allowance For Funds Used During Construction Capitalized Cost Of Equity PublicUtilitiesAllowanceForFundsUsedDuringConstructionCapitalizedCostOfEquity	3700000	USD
CY2018	us-gaap	Public Utilities Allowance For Funds Used During Construction Capitalized Cost Of Equity PublicUtilitiesAllowanceForFundsUsedDuringConstructionCapitalizedCostOfEquity	3900000	USD
CY2017	us-gaap	Public Utilities Allowance For Funds Used During Construction Capitalized Cost Of Equity PublicUtilitiesAllowanceForFundsUsedDuringConstructionCapitalizedCostOfEquity	3100000	USD
CY2019Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Number Of Shares Authorized ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAuthorized	34300000	shares
CY2016Q4	us-gaap	New Accounting Pronouncement Or Change In Accounting Principle Cumulative Effect Of Change On Equity Or Net Assets1 NewAccountingPronouncementOrChangeInAccountingPrincipleCumulativeEffectOfChangeOnEquityOrNetAssets1	11900000	USD
CY2019	wep	Impairment Losses Recorded Upon Adoption Of Asu201602 ImpairmentLossesRecordedUponAdoptionOfASU201602	0	USD
CY2019Q4	wep	Number Of Land Easements Considered Leases Upon Adoptionof Asu201602 NumberOfLandEasementsConsideredLeasesUponAdoptionofASU201602	0	land_easement
CY2019Q1	us-gaap	Operating Lease Right Of Use Asset OperatingLeaseRightOfUseAsset	13000000.0	USD
CY2019	wep	Finance Capital Lease Expense Impact Of Asu201602 FinanceCapitalLeaseExpenseImpactOfASU201602	0	USD
CY2019	us-gaap	Guarantees Indemnifications And Warranties Policies GuaranteesIndemnificationsAndWarrantiesPolicies	We follow the guidance of the Guarantees Topic of the FASB ASC, which requires, under certain circumstances, that the guarantor recognize a liability for the fair value of the obligation undertaken in issuing the guarantee at its inception.
CY2018	wep	Proceeds From Payments For Transfer Of Liabilities To Related Party ProceedsFromPaymentsForTransferOfLiabilitiesToRelatedParty	10000000.0	USD
CY2018	wep	Payments For Assets Transferred From Related Party PaymentsForAssetsTransferredFromRelatedParty	59800000	USD
CY2019Q4	us-gaap	Regulatory Assets RegulatoryAssets	2755200000	USD
CY2018Q4	us-gaap	Regulatory Assets Current RegulatoryAssetsCurrent	100000	USD
CY2019Q4	us-gaap	Regulatory Assets Noncurrent RegulatoryAssetsNoncurrent	2755200000	USD
CY2018Q4	us-gaap	Regulatory Assets Noncurrent RegulatoryAssetsNoncurrent	2902200000	USD
CY2019Q4	us-gaap	Regulatory Assets RegulatoryAssets	2755200000	USD
CY2018Q4	us-gaap	Regulatory Assets RegulatoryAssets	2902300000	USD
CY2019Q4	us-gaap	Remaining Amounts Of Regulatory Assets For Which No Return On Investment During Recovery Period Is Provided RemainingAmountsOfRegulatoryAssetsForWhichNoReturnOnInvestmentDuringRecoveryPeriodIsProvided	10000000.0	USD
CY2019Q4	wep	Remaining Amounts Of Regulatory Assets Earning Short Term Interest Rate Return On Investment RemainingAmountsOfRegulatoryAssetsEarningShortTermInterestRateReturnOnInvestment	28600000	USD
CY2019Q4	wep	Remaining Amounts Of Regulatory Assets Earning Long Term Interest Rate Return On Investment RemainingAmountsOfRegulatoryAssetsEarningLongTermInterestRateReturnOnInvestment	151500000	USD
CY2019Q4	us-gaap	Regulatory Liabilities RegulatoryLiabilities	1756200000	USD
CY2018Q4	us-gaap	Regulatory Liabilities RegulatoryLiabilities	2014200000	USD
CY2019Q4	us-gaap	Regulatory Liability Current RegulatoryLiabilityCurrent	12000000.0	USD
CY2018Q4	us-gaap	Regulatory Liability Current RegulatoryLiabilityCurrent	11900000	USD
CY2019Q4	us-gaap	Regulatory Liability Noncurrent RegulatoryLiabilityNoncurrent	1744200000	USD
CY2018Q4	us-gaap	Regulatory Liability Noncurrent RegulatoryLiabilityNoncurrent	2002300000	USD
CY2019Q4	us-gaap	Regulatory Liabilities RegulatoryLiabilities	1756200000	USD
CY2018Q4	us-gaap	Regulatory Liabilities RegulatoryLiabilities	2014200000	USD
CY2019Q4	us-gaap	Property Plant And Equipment Net PropertyPlantAndEquipmentNet	9586700000	USD
CY2018Q4	us-gaap	Property Plant And Equipment Net PropertyPlantAndEquipmentNet	9528900000	USD
CY2017Q4	us-gaap	Restructuring Reserve RestructuringReserve	25800000	USD
CY2018Q4	us-gaap	Restructuring Reserve RestructuringReserve	12900000	USD
CY2017Q4	us-gaap	Restructuring Reserve RestructuringReserve	25800000	USD
CY2019	us-gaap	Payments For Restructuring PaymentsForRestructuring	5700000	USD
CY2018	us-gaap	Payments For Restructuring PaymentsForRestructuring	9900000	USD
CY2019	us-gaap	Restructuring Reserve Accrual Adjustment1 RestructuringReserveAccrualAdjustment1	5100000	USD
CY2018	us-gaap	Restructuring Reserve Accrual Adjustment1 RestructuringReserveAccrualAdjustment1	3000000.0	USD
CY2019Q4	us-gaap	Restructuring Reserve RestructuringReserve	2100000	USD
CY2018Q4	us-gaap	Restructuring Reserve RestructuringReserve	12900000	USD
CY2018Q4	us-gaap	Asset Retirement Obligation AssetRetirementObligation	70700000	USD
CY2017Q4	us-gaap	Asset Retirement Obligation AssetRetirementObligation	68300000	USD
CY2016Q4	us-gaap	Asset Retirement Obligation AssetRetirementObligation	61500000	USD
CY2019	us-gaap	Asset Retirement Obligation Accretion Expense AssetRetirementObligationAccretionExpense	3600000	USD
CY2018	us-gaap	Asset Retirement Obligation Accretion Expense AssetRetirementObligationAccretionExpense	3300000	USD
CY2017	us-gaap	Asset Retirement Obligation Accretion Expense AssetRetirementObligationAccretionExpense	3200000	USD
CY2019	wep	Asset Retirement Obligation Addition Revision Of Estimate AssetRetirementObligationAdditionRevisionOfEstimate	-8400000	USD
CY2018	wep	Asset Retirement Obligation Addition Revision Of Estimate AssetRetirementObligationAdditionRevisionOfEstimate	1000000.0	USD
CY2017	wep	Asset Retirement Obligation Addition Revision Of Estimate AssetRetirementObligationAdditionRevisionOfEstimate	5500000	USD
CY2019	us-gaap	Asset Retirement Obligation Liabilities Settled AssetRetirementObligationLiabilitiesSettled	900000	USD
CY2018	us-gaap	Asset Retirement Obligation Liabilities Settled AssetRetirementObligationLiabilitiesSettled	1900000	USD
CY2017	us-gaap	Asset Retirement Obligation Liabilities Settled AssetRetirementObligationLiabilitiesSettled	1900000	USD
CY2019Q4	us-gaap	Asset Retirement Obligation AssetRetirementObligation	65000000.0	USD
CY2018Q4	us-gaap	Asset Retirement Obligation AssetRetirementObligation	70700000	USD
CY2017Q4	us-gaap	Asset Retirement Obligation AssetRetirementObligation	68300000	USD
CY2019	us-gaap	Asset Retirement Obligation Revision Of Estimate AssetRetirementObligationRevisionOfEstimate	-7300000	USD
CY2019	us-gaap	Allocated Share Based Compensation Expense AllocatedShareBasedCompensationExpense	22300000	USD
CY2018	us-gaap	Allocated Share Based Compensation Expense AllocatedShareBasedCompensationExpense	14600000	USD
CY2017	us-gaap	Allocated Share Based Compensation Expense AllocatedShareBasedCompensationExpense	12000000.0	USD
CY2019	us-gaap	Employee Service Share Based Compensation Tax Benefit From Compensation Expense EmployeeServiceShareBasedCompensationTaxBenefitFromCompensationExpense	6100000	USD
CY2018	us-gaap	Employee Service Share Based Compensation Tax Benefit From Compensation Expense EmployeeServiceShareBasedCompensationTaxBenefitFromCompensationExpense	4000000.0	USD
CY2017	us-gaap	Employee Service Share Based Compensation Tax Benefit From Compensation Expense EmployeeServiceShareBasedCompensationTaxBenefitFromCompensationExpense	4800000	USD
CY2019Q4	us-gaap	Retained Earnings Appropriated RetainedEarningsAppropriated	2200000000	USD
CY2019Q4	us-gaap	Preferred Stock Value PreferredStockValue	30400000	USD
CY2019	wep	Maximum Debtto Capitalization Ratio MaximumDebttoCapitalizationRatio	0.65
CY2019Q4	us-gaap	Line Of Credit Facility Remaining Borrowing Capacity LineOfCreditFacilityRemainingBorrowingCapacity	383500000	USD
CY2019Q4	wep	Numberofextensionsavailableonacreditfacility Numberofextensionsavailableonacreditfacility	2	extension
CY2019	wep	Lengthofcreditfacilityextension Lengthofcreditfacilityextension	P1Y
CY2019Q4	us-gaap	Debt Instrument Carrying Amount DebtInstrumentCarryingAmount	2785000000.0	USD
CY2018Q4	us-gaap	Debt Instrument Carrying Amount DebtInstrumentCarryingAmount	2735000000.0	USD
CY2019Q4	us-gaap	Unamortized Debt Issuance Expense UnamortizedDebtIssuanceExpense	8000000.0	USD
CY2018Q4	us-gaap	Unamortized Debt Issuance Expense UnamortizedDebtIssuanceExpense	6000000.0	USD
CY2019Q4	us-gaap	Debt Instrument Unamortized Discount Premium Net DebtInstrumentUnamortizedDiscountPremiumNet	17800000	USD
CY2018Q4	us-gaap	Debt Instrument Unamortized Discount Premium Net DebtInstrumentUnamortizedDiscountPremiumNet	19400000	USD
CY2019Q4	us-gaap	Long Term Debt LongTermDebt	2759200000	USD
CY2018Q4	us-gaap	Long Term Debt LongTermDebt	2709600000	USD
CY2019Q4	us-gaap	Long Term Debt Current LongTermDebtCurrent	0	USD
CY2018Q4	us-gaap	Long Term Debt Current LongTermDebtCurrent	250000000.0	USD
CY2019Q4	us-gaap	Long Term Debt Noncurrent LongTermDebtNoncurrent	2759200000	USD
CY2018Q4	us-gaap	Long Term Debt Noncurrent LongTermDebtNoncurrent	2459600000	USD
CY2019Q4	us-gaap	Long Term Debt Maturities Repayments Of Principal In Next Twelve Months LongTermDebtMaturitiesRepaymentsOfPrincipalInNextTwelveMonths	0	USD
CY2019Q4	us-gaap	Long Term Debt Maturities Repayments Of Principal In Year Two LongTermDebtMaturitiesRepaymentsOfPrincipalInYearTwo	300000000.0	USD
CY2019Q4	us-gaap	Long Term Debt Maturities Repayments Of Principal In Year Three LongTermDebtMaturitiesRepaymentsOfPrincipalInYearThree	0	USD
CY2019Q4	us-gaap	Long Term Debt Maturities Repayments Of Principal In Year Four LongTermDebtMaturitiesRepaymentsOfPrincipalInYearFour	0	USD
CY2018	wep	Taxrepairsamount Taxrepairsamount	-120700000	USD
CY2019Q4	us-gaap	Operating Lease Liability OperatingLeaseLiability	10600000	USD
CY2019Q4	us-gaap	Finance Lease Liability Payments Due After Year Five FinanceLeaseLiabilityPaymentsDueAfterYearFive	5239800000	USD
CY2019Q4	us-gaap	Long Term Debt Maturities Repayments Of Principal In Year Five LongTermDebtMaturitiesRepaymentsOfPrincipalInYearFive	300000000.0	USD
CY2019Q4	us-gaap	Long Term Debt Maturities Repayments Of Principal After Year Five LongTermDebtMaturitiesRepaymentsOfPrincipalAfterYearFive	2185000000.0	USD
CY2019Q4	us-gaap	Debt Instrument Carrying Amount DebtInstrumentCarryingAmount	2785000000.0	USD
CY2019	us-gaap	Operating Lease Cost OperatingLeaseCost	2600000	USD
CY2018	us-gaap	Operating Lease Cost OperatingLeaseCost	2700000	USD
CY2017	us-gaap	Operating Lease Cost OperatingLeaseCost	3700000	USD
CY2019	us-gaap	Lease Cost LeaseCost	374100000	USD
CY2018	us-gaap	Lease Cost LeaseCost	373700000	USD
CY2017	us-gaap	Lease Cost LeaseCost	374200000	USD
CY2019	us-gaap	Finance Lease Interest Payment On Liability FinanceLeaseInterestPaymentOnLiability	350900000	USD
CY2018	us-gaap	Finance Lease Interest Payment On Liability FinanceLeaseInterestPaymentOnLiability	381400000	USD
CY2017	us-gaap	Finance Lease Interest Payment On Liability FinanceLeaseInterestPaymentOnLiability	427700000	USD
CY2019	us-gaap	Operating Lease Payments OperatingLeasePayments	2600000	USD
CY2018	us-gaap	Operating Lease Payments OperatingLeasePayments	2700000	USD
CY2017	us-gaap	Operating Lease Payments OperatingLeasePayments	3500000	USD
CY2019	us-gaap	Finance Lease Principal Payments FinanceLeasePrincipalPayments	50500000	USD
CY2019	us-gaap	Right Of Use Asset Obtained In Exchange For Operating Lease Liability RightOfUseAssetObtainedInExchangeForOperatingLeaseLiability	13000000.0	USD
CY2019Q4	us-gaap	Finance Lease Weighted Average Remaining Lease Term1 FinanceLeaseWeightedAverageRemainingLeaseTerm1	P18Y7M6D
CY2019Q4	us-gaap	Operating Lease Weighted Average Remaining Lease Term1 OperatingLeaseWeightedAverageRemainingLeaseTerm1	P25Y
CY2019Q4	us-gaap	Finance Lease Weighted Average Discount Rate Percent FinanceLeaseWeightedAverageDiscountRatePercent	0.139
CY2019Q4	us-gaap	Operating Lease Weighted Average Discount Rate Percent OperatingLeaseWeightedAverageDiscountRatePercent	0.045
CY2019	us-gaap	Finance Lease Right Of Use Asset Amortization FinanceLeaseRightOfUseAssetAmortization	20600000	USD
CY2019	us-gaap	Finance Lease Interest Expense FinanceLeaseInterestExpense	350900000	USD
CY2019Q4	us-gaap	Operating Lease Right Of Use Asset OperatingLeaseRightOfUseAsset	10600000	USD
CY2019Q4	us-gaap	Lessee Operating Lease Liability Payments Due Next Twelve Months LesseeOperatingLeaseLiabilityPaymentsDueNextTwelveMonths	2600000	USD
CY2019Q4	us-gaap	Finance Lease Liability Payments Due Next Twelve Months FinanceLeaseLiabilityPaymentsDueNextTwelveMonths	401700000	USD
CY2019Q4	us-gaap	Lessee Operating Lease Liability Payments Due Year Two LesseeOperatingLeaseLiabilityPaymentsDueYearTwo	700000	USD
CY2019Q4	us-gaap	Finance Lease Liability Payments Due Year Two FinanceLeaseLiabilityPaymentsDueYearTwo	402300000	USD
CY2019Q4	us-gaap	Lessee Operating Lease Liability Payments Due Year Three LesseeOperatingLeaseLiabilityPaymentsDueYearThree	500000	USD
CY2019Q4	us-gaap	Finance Lease Liability Payments Due Year Three FinanceLeaseLiabilityPaymentsDueYearThree	396900000	USD
CY2019Q4	us-gaap	Lessee Operating Lease Liability Payments Due Year Four LesseeOperatingLeaseLiabilityPaymentsDueYearFour	500000	USD
CY2019Q4	us-gaap	Finance Lease Liability Payments Due Year Four FinanceLeaseLiabilityPaymentsDueYearFour	392600000	USD
CY2019Q4	us-gaap	Lessee Operating Lease Liability Payments Due Year Five LesseeOperatingLeaseLiabilityPaymentsDueYearFive	500000	USD
CY2019Q4	us-gaap	Finance Lease Liability Payments Due Year Five FinanceLeaseLiabilityPaymentsDueYearFive	392400000	USD
CY2019Q4	us-gaap	Lessee Operating Lease Liability Payments Due After Year Five LesseeOperatingLeaseLiabilityPaymentsDueAfterYearFive	13200000	USD
CY2019Q4	us-gaap	Lessee Operating Lease Liability Payments Due LesseeOperatingLeaseLiabilityPaymentsDue	18000000.0	USD
CY2019Q4	us-gaap	Finance Lease Liability Payments Due FinanceLeaseLiabilityPaymentsDue	7225700000	USD
CY2018	us-gaap	Effective Income Tax Rate Reconciliation At Federal Statutory Income Tax Rate EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate	0.210
CY2019Q4	us-gaap	Lessee Operating Lease Liability Undiscounted Excess Amount LesseeOperatingLeaseLiabilityUndiscountedExcessAmount	7400000	USD
CY2019	us-gaap	Income Tax Reconciliation Income Tax Expense Benefit At Federal Statutory Income Tax Rate IncomeTaxReconciliationIncomeTaxExpenseBenefitAtFederalStatutoryIncomeTaxRate	63900000	USD
CY2019	us-gaap	Effective Income Tax Rate Reconciliation At Federal Statutory Income Tax Rate EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate	0.210
CY2018	us-gaap	Income Tax Reconciliation Income Tax Expense Benefit At Federal Statutory Income Tax Rate IncomeTaxReconciliationIncomeTaxExpenseBenefitAtFederalStatutoryIncomeTaxRate	63300000	USD
CY2019Q4	us-gaap	Finance Lease Liability Undiscounted Excess Amount FinanceLeaseLiabilityUndiscountedExcessAmount	4384800000	USD
CY2019	us-gaap	Income Tax Reconciliation Tax Credits Investment IncomeTaxReconciliationTaxCreditsInvestment	2300000	USD
CY2018	us-gaap	Income Tax Reconciliation Tax Credits Investment IncomeTaxReconciliationTaxCreditsInvestment	800000	USD
CY2017	us-gaap	Income Tax Reconciliation Tax Credits Investment IncomeTaxReconciliationTaxCreditsInvestment	900000	USD
CY2019	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	-57800000	USD
CY2018	wep	Taxrepairspercentage Taxrepairspercentage	-0.399
CY2017	wep	Taxrepairsamount Taxrepairsamount	0	USD
CY2018	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	-56900000	USD
CY2017	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	191200000	USD
CY2019Q4	us-gaap	Finance Lease Liability FinanceLeaseLiability	2840900000	USD
CY2019Q4	us-gaap	Operating Lease Liability Current OperatingLeaseLiabilityCurrent	2200000	USD
CY2019Q4	us-gaap	Finance Lease Liability Current FinanceLeaseLiabilityCurrent	57800000	USD
CY2019Q4	us-gaap	Operating Lease Liability Noncurrent OperatingLeaseLiabilityNoncurrent	8400000	USD
CY2019Q4	us-gaap	Finance Lease Liability Noncurrent FinanceLeaseLiabilityNoncurrent	2783100000	USD
CY2019	us-gaap	Current Income Tax Expense Benefit CurrentIncomeTaxExpenseBenefit	73400000	USD
CY2018	us-gaap	Current Income Tax Expense Benefit CurrentIncomeTaxExpenseBenefit	-56200000	USD
CY2017	us-gaap	Current Income Tax Expense Benefit CurrentIncomeTaxExpenseBenefit	81500000	USD
CY2019	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	-128900000	USD
CY2018	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	100000	USD
CY2017	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	110600000	USD
CY2017	us-gaap	Income Tax Reconciliation Income Tax Expense Benefit At Federal Statutory Income Tax Rate IncomeTaxReconciliationIncomeTaxExpenseBenefitAtFederalStatutoryIncomeTaxRate	184400000	USD
CY2017	us-gaap	Effective Income Tax Rate Reconciliation At Federal Statutory Income Tax Rate EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate	0.350
CY2019	us-gaap	Income Tax Reconciliation State And Local Income Taxes IncomeTaxReconciliationStateAndLocalIncomeTaxes	20200000	USD
CY2019	wep	Effective Income Tax Rate Reconciliation State And Local Income Taxes Net Of Federal Tax Benefit EffectiveIncomeTaxRateReconciliationStateAndLocalIncomeTaxesNetOfFederalTaxBenefit	0.066
CY2018	us-gaap	Income Tax Reconciliation State And Local Income Taxes IncomeTaxReconciliationStateAndLocalIncomeTaxes	19600000	USD
CY2018	wep	Effective Income Tax Rate Reconciliation State And Local Income Taxes Net Of Federal Tax Benefit EffectiveIncomeTaxRateReconciliationStateAndLocalIncomeTaxesNetOfFederalTaxBenefit	0.065
CY2017	us-gaap	Income Tax Reconciliation State And Local Income Taxes IncomeTaxReconciliationStateAndLocalIncomeTaxes	27900000	USD
CY2017	wep	Effective Income Tax Rate Reconciliation State And Local Income Taxes Net Of Federal Tax Benefit EffectiveIncomeTaxRateReconciliationStateAndLocalIncomeTaxesNetOfFederalTaxBenefit	0.053
CY2019	wep	Taxrepairsamount Taxrepairsamount	-122900000	USD
CY2019	wep	Taxrepairspercentage Taxrepairspercentage	-0.401
CY2018	wep	Effective Income Tax Rate Reconciliation Deduction Amortizationof Qualified Production Activity Amount EffectiveIncomeTaxRateReconciliationDeductionAmortizationofQualifiedProductionActivityAmount	6100000	USD
CY2018	wep	Effective Income Tax Rate Reconciliation Deduction Amortizationof Qualified Production Activity Percent EffectiveIncomeTaxRateReconciliationDeductionAmortizationofQualifiedProductionActivityPercent	0.020
CY2017	us-gaap	Income Tax Reconciliation Deductions Qualified Production Activities IncomeTaxReconciliationDeductionsQualifiedProductionActivities	7800000	USD
CY2017	us-gaap	Effective Income Tax Rate Reconciliation Deductions Qualified Production Activities EffectiveIncomeTaxRateReconciliationDeductionsQualifiedProductionActivities	0.015
CY2017	wep	Taxrepairspercentage Taxrepairspercentage	0
CY2019	wep	Federalexcessamortizationamount Federalexcessamortizationamount	-16100000	USD
CY2019	wep	Federalexcessamortizationeffectivetaxrate Federalexcessamortizationeffectivetaxrate	-0.053
CY2018	wep	Federalexcessamortizationamount Federalexcessamortizationamount	-15500000	USD
CY2018	wep	Federalexcessamortizationeffectivetaxrate Federalexcessamortizationeffectivetaxrate	-0.051
CY2017	wep	Federalexcessamortizationamount Federalexcessamortizationamount	0	USD
CY2017	wep	Federalexcessamortizationeffectivetaxrate Federalexcessamortizationeffectivetaxrate	0
CY2019	us-gaap	Income Tax Reconciliation Tax Credits Other IncomeTaxReconciliationTaxCreditsOther	9300000	USD
CY2019	us-gaap	Effective Income Tax Rate Reconciliation Tax Credits Other EffectiveIncomeTaxRateReconciliationTaxCreditsOther	0.030
CY2018	us-gaap	Income Tax Reconciliation Tax Credits Other IncomeTaxReconciliationTaxCreditsOther	9400000	USD
CY2018	us-gaap	Effective Income Tax Rate Reconciliation Tax Credits Other EffectiveIncomeTaxRateReconciliationTaxCreditsOther	0.031
CY2017	us-gaap	Income Tax Reconciliation Tax Credits Other IncomeTaxReconciliationTaxCreditsOther	17600000	USD
CY2017	us-gaap	Effective Income Tax Rate Reconciliation Tax Credits Other EffectiveIncomeTaxRateReconciliationTaxCreditsOther	0.033
CY2019	us-gaap	Income Tax Reconciliation Tax Credits Investment IncomeTaxReconciliationTaxCreditsInvestment	2300000	USD
CY2019	us-gaap	Effective Income Tax Rate Reconciliation Tax Credits Investment EffectiveIncomeTaxRateReconciliationTaxCreditsInvestment	0.008
CY2018	us-gaap	Income Tax Reconciliation Tax Credits Investment IncomeTaxReconciliationTaxCreditsInvestment	800000	USD
CY2018	us-gaap	Effective Income Tax Rate Reconciliation Tax Credits Investment EffectiveIncomeTaxRateReconciliationTaxCreditsInvestment	0.003
CY2017	us-gaap	Income Tax Reconciliation Tax Credits Investment IncomeTaxReconciliationTaxCreditsInvestment	900000	USD
CY2017	us-gaap	Effective Income Tax Rate Reconciliation Tax Credits Investment EffectiveIncomeTaxRateReconciliationTaxCreditsInvestment	0.002
CY2019	wep	Income Tax Reconciliation Allowance For Funds Used During Construction Capitalized Cost Of Equity IncomeTaxReconciliationAllowanceForFundsUsedDuringConstructionCapitalizedCostOfEquity	800000	USD
CY2019	wep	Effective Income Tax Rate Reconciliation Allowance For Funds Used During Construction Capitalized Cost Of Equity EffectiveIncomeTaxRateReconciliationAllowanceForFundsUsedDuringConstructionCapitalizedCostOfEquity	0.003
CY2018	wep	Income Tax Reconciliation Allowance For Funds Used During Construction Capitalized Cost Of Equity IncomeTaxReconciliationAllowanceForFundsUsedDuringConstructionCapitalizedCostOfEquity	800000	USD
CY2018	wep	Effective Income Tax Rate Reconciliation Allowance For Funds Used During Construction Capitalized Cost Of Equity EffectiveIncomeTaxRateReconciliationAllowanceForFundsUsedDuringConstructionCapitalizedCostOfEquity	0.003
CY2017	wep	Income Tax Reconciliation Allowance For Funds Used During Construction Capitalized Cost Of Equity IncomeTaxReconciliationAllowanceForFundsUsedDuringConstructionCapitalizedCostOfEquity	1100000	USD
CY2017	wep	Effective Income Tax Rate Reconciliation Allowance For Funds Used During Construction Capitalized Cost Of Equity EffectiveIncomeTaxRateReconciliationAllowanceForFundsUsedDuringConstructionCapitalizedCostOfEquity	0.002
CY2019	wep	Effective Income Tax Rate Reconciliation Deduction Amortizationof Qualified Production Activity Amount EffectiveIncomeTaxRateReconciliationDeductionAmortizationofQualifiedProductionActivityAmount	6100000	USD
CY2019	wep	Effective Income Tax Rate Reconciliation Deduction Amortizationof Qualified Production Activity Percent EffectiveIncomeTaxRateReconciliationDeductionAmortizationofQualifiedProductionActivityPercent	0.020
CY2019	us-gaap	Income Tax Reconciliation Other Adjustments IncomeTaxReconciliationOtherAdjustments	3400000	USD
CY2019	us-gaap	Effective Income Tax Rate Reconciliation Other Adjustments EffectiveIncomeTaxRateReconciliationOtherAdjustments	0.010
CY2018	us-gaap	Income Tax Reconciliation Other Adjustments IncomeTaxReconciliationOtherAdjustments	1300000	USD
CY2018	us-gaap	Effective Income Tax Rate Reconciliation Other Adjustments EffectiveIncomeTaxRateReconciliationOtherAdjustments	0.004
CY2017	us-gaap	Income Tax Reconciliation Other Adjustments IncomeTaxReconciliationOtherAdjustments	6300000	USD
CY2017	us-gaap	Effective Income Tax Rate Reconciliation Other Adjustments EffectiveIncomeTaxRateReconciliationOtherAdjustments	0.011
CY2019	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	-57800000	USD
CY2019	wep	Income Tax Expense Benefit Effective Tax Rate IncomeTaxExpenseBenefitEffectiveTaxRate	-0.189
CY2018	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	-56900000	USD
CY2018	wep	Income Tax Expense Benefit Effective Tax Rate IncomeTaxExpenseBenefitEffectiveTaxRate	-0.188
CY2017	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	191200000	USD
CY2017	wep	Income Tax Expense Benefit Effective Tax Rate IncomeTaxExpenseBenefitEffectiveTaxRate	0.362
CY2019Q4	us-gaap	Deferred Tax Liabilities Gross Noncurrent DeferredTaxLiabilitiesGrossNoncurrent	1732400000	USD
CY2018Q4	us-gaap	Deferred Tax Liabilities Gross Noncurrent DeferredTaxLiabilitiesGrossNoncurrent	1803100000	USD
CY2019Q4	us-gaap	Deferred Tax Liabilities Noncurrent DeferredTaxLiabilitiesNoncurrent	1347400000	USD
CY2017	us-gaap	Effective Income Tax Rate Reconciliation At Federal Statutory Income Tax Rate EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate	0.35
CY2018Q1	us-gaap	Effective Income Tax Rate Reconciliation At Federal Statutory Income Tax Rate EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate	0.21
CY2017Q4	wep	Estimated Tax Benefit Relatedtothe Remeasurementof Deferred Taxesfrom Tax Legislation EstimatedTaxBenefitRelatedtotheRemeasurementofDeferredTaxesfromTaxLegislation	1065000000	USD
CY2019Q4	wep	Deferred Tax Assets Tax Gross Up Regulatory Items Non Current DeferredTaxAssetsTaxGrossUpRegulatoryItemsNonCurrent	152700000	USD
CY2018Q4	wep	Deferred Tax Assets Tax Gross Up Regulatory Items Non Current DeferredTaxAssetsTaxGrossUpRegulatoryItemsNonCurrent	203000000.0	USD
CY2019Q4	us-gaap	Deferred Tax Assets Deferred Income DeferredTaxAssetsDeferredIncome	126800000	USD
CY2018Q4	us-gaap	Deferred Tax Assets Deferred Income DeferredTaxAssetsDeferredIncome	129300000	USD
CY2019Q4	wep	Deferred Tax Assets Future Federal Tax Benefits Non Current DeferredTaxAssetsFutureFederalTaxBenefitsNonCurrent	41000000.0	USD
CY2018Q4	wep	Deferred Tax Assets Future Federal Tax Benefits Non Current DeferredTaxAssetsFutureFederalTaxBenefitsNonCurrent	15900000	USD
CY2019Q4	wep	Deferred Tax Asset Regulatory Deferrals DeferredTaxAssetRegulatoryDeferrals	1300000	USD
CY2018Q4	wep	Deferred Tax Asset Regulatory Deferrals DeferredTaxAssetRegulatoryDeferrals	97300000	USD
CY2019Q4	wep	Deferred Tax Assets Other Non Current DeferredTaxAssetsOtherNonCurrent	63200000	USD
CY2018Q4	wep	Deferred Tax Assets Other Non Current DeferredTaxAssetsOtherNonCurrent	59300000	USD
CY2019Q4	us-gaap	Deferred Tax Assets Net Noncurrent DeferredTaxAssetsNetNoncurrent	385000000.0	USD
CY2018Q4	us-gaap	Deferred Tax Assets Net Noncurrent DeferredTaxAssetsNetNoncurrent	504800000	USD
CY2019Q4	us-gaap	Deferred Tax Liabilities Property Plant And Equipment DeferredTaxLiabilitiesPropertyPlantAndEquipment	1368900000	USD
CY2018Q4	us-gaap	Deferred Tax Liabilities Property Plant And Equipment DeferredTaxLiabilitiesPropertyPlantAndEquipment	1365900000	USD
CY2019Q4	us-gaap	Deferred Tax Liabilities Deferred Expense DeferredTaxLiabilitiesDeferredExpense	215500000	USD
CY2018Q4	us-gaap	Deferred Tax Liabilities Deferred Expense DeferredTaxLiabilitiesDeferredExpense	176000000.0	USD
CY2019Q4	wep	Deferred Tax Liabilities Employee Benefits And Compensation Non Current DeferredTaxLiabilitiesEmployeeBenefitsAndCompensationNonCurrent	55800000	USD
CY2018Q4	wep	Deferred Tax Liabilities Employee Benefits And Compensation Non Current DeferredTaxLiabilitiesEmployeeBenefitsAndCompensationNonCurrent	55900000	USD
CY2019Q4	us-gaap	Deferred Tax Liabilities Regulatory Assets DeferredTaxLiabilitiesRegulatoryAssets	51100000	USD
CY2018Q4	us-gaap	Deferred Tax Liabilities Regulatory Assets DeferredTaxLiabilitiesRegulatoryAssets	110700000	USD
CY2019Q4	wep	Deferred Tax Liabilities Other Non Current DeferredTaxLiabilitiesOtherNonCurrent	41100000	USD
CY2018Q4	wep	Deferred Tax Liabilities Other Non Current DeferredTaxLiabilitiesOtherNonCurrent	94600000	USD
CY2018Q4	us-gaap	Deferred Tax Liabilities Noncurrent DeferredTaxLiabilitiesNoncurrent	1298300000	USD
CY2019Q4	wep	Balanceof Tax Benefit Carryforward BalanceofTaxBenefitCarryforward	52400000	USD
CY2019Q4	wep	Deferred Tax Assets Future Federal Tax Benefits Non Current DeferredTaxAssetsFutureFederalTaxBenefitsNonCurrent	41000000.0	USD
CY2018Q4	wep	Balanceof Tax Benefit Carryforward BalanceofTaxBenefitCarryforward	68700000	USD
CY2018Q4	wep	Deferred Tax Assets Future Federal Tax Benefits Non Current DeferredTaxAssetsFutureFederalTaxBenefitsNonCurrent	15900000	USD
CY2019Q4	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	0	USD
CY2019	us-gaap	Unrecognized Tax Benefits Interest On Income Taxes Expense UnrecognizedTaxBenefitsInterestOnIncomeTaxesExpense	0	USD
CY2017	wep	Unrecognized Tax Benefits Interest Incomeon Income Tax Benefit UnrecognizedTaxBenefitsInterestIncomeonIncomeTaxBenefit	700000	USD
CY2019	us-gaap	Unrecognized Tax Benefits Income Tax Penalties Expense UnrecognizedTaxBenefitsIncomeTaxPenaltiesExpense	0	USD
CY2019Q4	us-gaap	Unrecognized Tax Benefits Interest On Income Taxes Accrued UnrecognizedTaxBenefitsInterestOnIncomeTaxesAccrued	0	USD
CY2019Q4	us-gaap	Unrecognized Tax Benefits Income Tax Penalties Accrued UnrecognizedTaxBenefitsIncomeTaxPenaltiesAccrued	0	USD
CY2018Q4	us-gaap	Derivative Asset Fair Value Gross Asset Including Not Subject To Master Netting Arrangement DerivativeAssetFairValueGrossAssetIncludingNotSubjectToMasterNettingArrangement	5100000	USD
CY2018Q4	us-gaap	Derivative Liability Fair Value Gross Liability Including Not Subject To Master Netting Arrangement DerivativeLiabilityFairValueGrossLiabilityIncludingNotSubjectToMasterNettingArrangement	1300000	USD
CY2019Q4	us-gaap	Derivative Instruments And Hedges Liabilities Noncurrent DerivativeInstrumentsAndHedgesLiabilitiesNoncurrent	100000	USD
CY2018Q4	us-gaap	Derivative Instruments And Hedges Noncurrent DerivativeInstrumentsAndHedgesNoncurrent	0	USD
CY2018Q4	us-gaap	Fair Value Net Derivative Asset Liability Measured On Recurring Basis With Unobservable Inputs FairValueNetDerivativeAssetLiabilityMeasuredOnRecurringBasisWithUnobservableInputs	4400000	USD
CY2017Q4	us-gaap	Fair Value Net Derivative Asset Liability Measured On Recurring Basis With Unobservable Inputs FairValueNetDerivativeAssetLiabilityMeasuredOnRecurringBasisWithUnobservableInputs	2400000	USD
CY2016Q4	us-gaap	Fair Value Net Derivative Asset Liability Measured On Recurring Basis With Unobservable Inputs FairValueNetDerivativeAssetLiabilityMeasuredOnRecurringBasisWithUnobservableInputs	3100000	USD
CY2019	us-gaap	Fair Value Net Derivative Asset Liability Measured On Recurring Basis Unobservable Inputs Reconciliation Purchases FairValueNetDerivativeAssetLiabilityMeasuredOnRecurringBasisUnobservableInputsReconciliationPurchases	6800000	USD
CY2018	us-gaap	Fair Value Net Derivative Asset Liability Measured On Recurring Basis Unobservable Inputs Reconciliation Purchases FairValueNetDerivativeAssetLiabilityMeasuredOnRecurringBasisUnobservableInputsReconciliationPurchases	9400000	USD
CY2017	us-gaap	Fair Value Net Derivative Asset Liability Measured On Recurring Basis Unobservable Inputs Reconciliation Purchases FairValueNetDerivativeAssetLiabilityMeasuredOnRecurringBasisUnobservableInputsReconciliationPurchases	6900000	USD
CY2019	us-gaap	Fair Value Net Derivative Asset Liability Measured On Recurring Basis Unobservable Inputs Reconciliation Settlements FairValueNetDerivativeAssetLiabilityMeasuredOnRecurringBasisUnobservableInputsReconciliationSettlements	9700000	USD
CY2018	us-gaap	Fair Value Net Derivative Asset Liability Measured On Recurring Basis Unobservable Inputs Reconciliation Settlements FairValueNetDerivativeAssetLiabilityMeasuredOnRecurringBasisUnobservableInputsReconciliationSettlements	7400000	USD
CY2017	us-gaap	Fair Value Net Derivative Asset Liability Measured On Recurring Basis Unobservable Inputs Reconciliation Settlements FairValueNetDerivativeAssetLiabilityMeasuredOnRecurringBasisUnobservableInputsReconciliationSettlements	7600000	USD
CY2019Q4	us-gaap	Fair Value Net Derivative Asset Liability Measured On Recurring Basis With Unobservable Inputs FairValueNetDerivativeAssetLiabilityMeasuredOnRecurringBasisWithUnobservableInputs	1500000	USD
CY2018Q4	us-gaap	Fair Value Net Derivative Asset Liability Measured On Recurring Basis With Unobservable Inputs FairValueNetDerivativeAssetLiabilityMeasuredOnRecurringBasisWithUnobservableInputs	4400000	USD
CY2017Q4	us-gaap	Fair Value Net Derivative Asset Liability Measured On Recurring Basis With Unobservable Inputs FairValueNetDerivativeAssetLiabilityMeasuredOnRecurringBasisWithUnobservableInputs	2400000	USD
CY2019Q4	us-gaap	Derivative Instruments And Hedges DerivativeInstrumentsAndHedges	1900000	USD
CY2019Q4	wep	Derivative Instruments And Hedges Liabilities Gross Current DerivativeInstrumentsAndHedgesLiabilitiesGrossCurrent	5300000	USD
CY2018Q4	us-gaap	Derivative Instruments And Hedges DerivativeInstrumentsAndHedges	5100000	USD
CY2018Q4	wep	Derivative Instruments And Hedges Liabilities Gross Current DerivativeInstrumentsAndHedgesLiabilitiesGrossCurrent	1300000	USD
CY2019Q4	us-gaap	Derivative Instruments And Hedges Noncurrent DerivativeInstrumentsAndHedgesNoncurrent	100000	USD
CY2018Q4	us-gaap	Derivative Instruments And Hedges Liabilities Noncurrent DerivativeInstrumentsAndHedgesLiabilitiesNoncurrent	0	USD
CY2019Q4	us-gaap	Derivative Asset Fair Value Gross Asset Including Not Subject To Master Netting Arrangement DerivativeAssetFairValueGrossAssetIncludingNotSubjectToMasterNettingArrangement	2000000.0	USD
CY2019Q4	us-gaap	Derivative Liability Fair Value Gross Liability Including Not Subject To Master Netting Arrangement DerivativeLiabilityFairValueGrossLiabilityIncludingNotSubjectToMasterNettingArrangement	5400000	USD
CY2019Q4	us-gaap	Derivative Liability Collateral Right To Reclaim Cash Offset DerivativeLiabilityCollateralRightToReclaimCashOffset	4800000	USD
CY2018Q4	us-gaap	Derivative Liability Collateral Right To Reclaim Cash Offset DerivativeLiabilityCollateralRightToReclaimCashOffset	700000	USD
CY2018Q4	us-gaap	Derivative Liability Fair Value Gross Asset And Right To Reclaim Cash Offset DerivativeLiabilityFairValueGrossAssetAndRightToReclaimCashOffset	1300000	USD
CY2019Q4	us-gaap	Derivative Assets DerivativeAssets	1600000	USD
CY2019Q4	us-gaap	Derivative Liabilities DerivativeLiabilities	200000	USD
CY2018Q4	us-gaap	Derivative Assets DerivativeAssets	4500000	USD
CY2018Q4	us-gaap	Derivative Liabilities DerivativeLiabilities	0	USD
CY2019	us-gaap	Derivative Gain Loss On Derivative Net DerivativeGainLossOnDerivativeNet	-2600000	USD
CY2018	us-gaap	Derivative Gain Loss On Derivative Net DerivativeGainLossOnDerivativeNet	14300000	USD
CY2017	us-gaap	Derivative Gain Loss On Derivative Net DerivativeGainLossOnDerivativeNet	5200000	USD
CY2019Q4	us-gaap	Derivative Collateral Right To Reclaim Cash DerivativeCollateralRightToReclaimCash	8500000	USD
CY2018Q4	us-gaap	Derivative Collateral Right To Reclaim Cash DerivativeCollateralRightToReclaimCash	1100000	USD
CY2019Q4	us-gaap	Derivative Asset Fair Value Gross Asset Including Not Subject To Master Netting Arrangement DerivativeAssetFairValueGrossAssetIncludingNotSubjectToMasterNettingArrangement	2000000.0	USD
CY2019Q4	us-gaap	Derivative Liability Fair Value Gross Liability Including Not Subject To Master Netting Arrangement DerivativeLiabilityFairValueGrossLiabilityIncludingNotSubjectToMasterNettingArrangement	5400000	USD
CY2018Q4	us-gaap	Derivative Asset Fair Value Gross Asset Including Not Subject To Master Netting Arrangement DerivativeAssetFairValueGrossAssetIncludingNotSubjectToMasterNettingArrangement	5100000	USD
CY2018Q4	us-gaap	Derivative Liability Fair Value Gross Liability Including Not Subject To Master Netting Arrangement DerivativeLiabilityFairValueGrossLiabilityIncludingNotSubjectToMasterNettingArrangement	1300000	USD
CY2019Q4	us-gaap	Derivative Asset Fair Value Gross Liability And Obligation To Return Cash Offset DerivativeAssetFairValueGrossLiabilityAndObligationToReturnCashOffset	400000	USD
CY2019Q4	us-gaap	Derivative Liability Fair Value Gross Asset And Right To Reclaim Cash Offset DerivativeLiabilityFairValueGrossAssetAndRightToReclaimCashOffset	5200000	USD
CY2018Q4	us-gaap	Derivative Asset Fair Value Gross Liability And Obligation To Return Cash Offset DerivativeAssetFairValueGrossLiabilityAndObligationToReturnCashOffset	600000	USD
CY2018	us-gaap	Operating Income Loss OperatingIncomeLoss	402500000	USD
CY2018	us-gaap	Interest Expense InterestExpense	120100000	USD
CY2018	us-gaap	Payments To Acquire Property Plant And Equipment PaymentsToAcquirePropertyPlantAndEquipment	603200000	USD
CY2018	us-gaap	Depreciation Depletion And Amortization DepreciationDepletionAndAmortization	348100000	USD
CY2017	us-gaap	Payments To Acquire Property Plant And Equipment PaymentsToAcquirePropertyPlantAndEquipment	596100000	USD
CY2019	us-gaap	Defined Contribution Plan Cost Recognized DefinedContributionPlanCostRecognized	11900000	USD
CY2017	us-gaap	Defined Contribution Plan Cost Recognized DefinedContributionPlanCostRecognized	11700000	USD
CY2019	us-gaap	Number Of Reportable Segments NumberOfReportableSegments	2	segment
CY2018	wep	Significantitemsreportedintheothersegment Significantitemsreportedintheothersegment	0	USD
CY2019	us-gaap	Revenues Revenues	3496700000	USD
CY2019	us-gaap	Other Cost And Expense Operating OtherCostAndExpenseOperating	1053100000	USD
CY2019	us-gaap	Depreciation Depletion And Amortization DepreciationDepletionAndAmortization	384400000	USD
CY2019	us-gaap	Operating Income Loss OperatingIncomeLoss	760200000	USD
CY2019	us-gaap	Interest Expense InterestExpense	477400000	USD
CY2019	us-gaap	Payments To Acquire Property Plant And Equipment PaymentsToAcquirePropertyPlantAndEquipment	590600000	USD
CY2019Q4	us-gaap	Assets Assets	13360800000	USD
CY2018	us-gaap	Revenues Revenues	3625000000.0	USD
CY2018	us-gaap	Other Cost And Expense Operating OtherCostAndExpenseOperating	1502400000	USD
CY2018Q4	us-gaap	Assets Assets	13538300000	USD
CY2017	us-gaap	Revenues Revenues	3711700000	USD
CY2017	us-gaap	Other Cost And Expense Operating OtherCostAndExpenseOperating	1352000000.0	USD
CY2017	us-gaap	Depreciation Depletion And Amortization DepreciationDepletionAndAmortization	331600000	USD
CY2017	us-gaap	Operating Income Loss OperatingIncomeLoss	632100000	USD
CY2017	us-gaap	Interest Expense InterestExpense	117300000	USD
CY2018	us-gaap	Income Taxes Paid Net IncomeTaxesPaidNet	-17700000	USD
CY2017Q4	us-gaap	Assets Assets	13121600000	USD
CY2019	us-gaap	Interest Paid Net InterestPaidNet	475200000	USD
CY2018Q2	us-gaap	Operating Income Loss OperatingIncomeLoss	104500000	USD
CY2018	us-gaap	Interest Paid Net InterestPaidNet	115000000.0	USD
CY2017	us-gaap	Interest Paid Net InterestPaidNet	115100000	USD
CY2019	us-gaap	Income Taxes Paid Net IncomeTaxesPaidNet	-45800000	USD
CY2019Q4	us-gaap	Purchase Obligation PurchaseObligation	9627800000	USD
CY2019Q4	us-gaap	Purchase Obligation Due In Next Twelve Months PurchaseObligationDueInNextTwelveMonths	782300000	USD
CY2019Q4	us-gaap	Purchase Obligation Due In Second Year PurchaseObligationDueInSecondYear	766800000	USD
CY2019Q4	us-gaap	Purchase Obligation Due In Third Year PurchaseObligationDueInThirdYear	751000000.0	USD
CY2019Q4	us-gaap	Purchase Obligation Due In Fourth Year PurchaseObligationDueInFourthYear	742100000	USD
CY2019Q4	us-gaap	Purchase Obligation Due In Fifth Year PurchaseObligationDueInFifthYear	617900000	USD
CY2019Q4	us-gaap	Purchase Obligation Due After Fifth Year PurchaseObligationDueAfterFifthYear	5967700000	USD
CY2017	us-gaap	Income Taxes Paid Net IncomeTaxesPaidNet	-71700000	USD
CY2019	us-gaap	Capital Expenditures Incurred But Not Yet Paid CapitalExpendituresIncurredButNotYetPaid	36100000	USD
CY2018	us-gaap	Capital Expenditures Incurred But Not Yet Paid CapitalExpendituresIncurredButNotYetPaid	14000000.0	USD
CY2017	us-gaap	Capital Expenditures Incurred But Not Yet Paid CapitalExpendituresIncurredButNotYetPaid	13200000	USD
CY2019	us-gaap	Public Utilities Allowance For Funds Used During Construction Capitalized Cost Of Equity PublicUtilitiesAllowanceForFundsUsedDuringConstructionCapitalizedCostOfEquity	3700000	USD
CY2018	us-gaap	Public Utilities Allowance For Funds Used During Construction Capitalized Cost Of Equity PublicUtilitiesAllowanceForFundsUsedDuringConstructionCapitalizedCostOfEquity	3900000	USD
CY2017	us-gaap	Public Utilities Allowance For Funds Used During Construction Capitalized Cost Of Equity PublicUtilitiesAllowanceForFundsUsedDuringConstructionCapitalizedCostOfEquity	3100000	USD
CY2019	us-gaap	Net Periodic Defined Benefits Expense Reversal Of Expense Excluding Service Cost Component NetPeriodicDefinedBenefitsExpenseReversalOfExpenseExcludingServiceCostComponent	-9200000	USD
CY2018	us-gaap	Net Periodic Defined Benefits Expense Reversal Of Expense Excluding Service Cost Component NetPeriodicDefinedBenefitsExpenseReversalOfExpenseExcludingServiceCostComponent	-5700000	USD
CY2017	us-gaap	Net Periodic Defined Benefits Expense Reversal Of Expense Excluding Service Cost Component NetPeriodicDefinedBenefitsExpenseReversalOfExpenseExcludingServiceCostComponent	6500000	USD
CY2019	us-gaap	Interest Income Expense Nonoperating Net InterestIncomeExpenseNonoperatingNet	2200000	USD
CY2018	us-gaap	Interest Income Expense Nonoperating Net InterestIncomeExpenseNonoperatingNet	2200000	USD
CY2017	us-gaap	Interest Income Expense Nonoperating Net InterestIncomeExpenseNonoperatingNet	2300000	USD
CY2019	wep	Other Unclassified Nonoperating Income Expense OtherUnclassifiedNonoperatingIncomeExpense	7600000	USD
CY2018	wep	Other Unclassified Nonoperating Income Expense OtherUnclassifiedNonoperatingIncomeExpense	8400000	USD
CY2017	wep	Other Unclassified Nonoperating Income Expense OtherUnclassifiedNonoperatingIncomeExpense	14300000	USD
CY2019	us-gaap	Other Nonoperating Income Expense OtherNonoperatingIncomeExpense	22700000	USD
CY2018	us-gaap	Other Nonoperating Income Expense OtherNonoperatingIncomeExpense	20200000	USD
CY2017	us-gaap	Other Nonoperating Income Expense OtherNonoperatingIncomeExpense	13200000	USD
CY2018Q3	us-gaap	Operating Income Loss OperatingIncomeLoss	107800000	USD
CY2018Q4	us-gaap	Operating Income Loss OperatingIncomeLoss	53800000	USD
CY2018	us-gaap	Operating Income Loss OperatingIncomeLoss	402500000	USD
CY2018Q4	us-gaap	Revenues Revenues	903300000	USD
CY2019Q1	us-gaap	Revenues Revenues	960800000	USD
CY2019Q2	us-gaap	Revenues Revenues	791700000	USD
CY2019Q3	us-gaap	Revenues Revenues	884100000	USD
CY2019Q4	us-gaap	Revenues Revenues	860100000	USD
CY2019	us-gaap	Revenues Revenues	3496700000	USD
CY2019Q1	us-gaap	Operating Income Loss OperatingIncomeLoss	222900000	USD
CY2019Q2	us-gaap	Operating Income Loss OperatingIncomeLoss	182600000	USD
CY2019Q3	us-gaap	Operating Income Loss OperatingIncomeLoss	201100000	USD
CY2019Q4	us-gaap	Operating Income Loss OperatingIncomeLoss	153600000	USD
CY2019	us-gaap	Operating Income Loss OperatingIncomeLoss	760200000	USD
CY2019Q1	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	114700000	USD
CY2019Q2	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	84900000	USD
CY2019Q3	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	100600000	USD
CY2019Q4	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	61900000	USD
CY2019	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	362100000	USD
CY2018Q1	us-gaap	Revenues Revenues	941500000	USD
CY2018Q2	us-gaap	Revenues Revenues	856200000	USD
CY2018Q3	us-gaap	Revenues Revenues	924000000.0	USD
CY2018	us-gaap	Revenues Revenues	3625000000.0	USD
CY2018Q1	us-gaap	Operating Income Loss OperatingIncomeLoss	136400000	USD
CY2018Q1	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	105800000	USD
CY2018Q2	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	92800000	USD
CY2018Q3	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	103200000	USD
CY2018Q4	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	56500000	USD
CY2018	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	358300000	USD
CY2018Q4	us-gaap	Valuation Allowances And Reserves Balance ValuationAllowancesAndReservesBalance	40900000	USD
CY2019	us-gaap	Valuation Allowances And Reserves Adjustments ValuationAllowancesAndReservesAdjustments	0	USD
CY2019	us-gaap	Valuation Allowances And Reserves Charged To Cost And Expense ValuationAllowancesAndReservesChargedToCostAndExpense	32700000	USD
CY2019	us-gaap	Valuation Allowances And Reserves Charged To Other Accounts ValuationAllowancesAndReservesChargedToOtherAccounts	-12600000	USD
CY2019	us-gaap	Valuation Allowances And Reserves Deductions ValuationAllowancesAndReservesDeductions	22900000	USD
CY2019Q4	us-gaap	Valuation Allowances And Reserves Balance ValuationAllowancesAndReservesBalance	38100000	USD
CY2017Q4	us-gaap	Valuation Allowances And Reserves Balance ValuationAllowancesAndReservesBalance	39500000	USD
CY2018	us-gaap	Valuation Allowances And Reserves Adjustments ValuationAllowancesAndReservesAdjustments	0	USD
CY2018	us-gaap	Valuation Allowances And Reserves Charged To Cost And Expense ValuationAllowancesAndReservesChargedToCostAndExpense	32300000	USD
CY2018	us-gaap	Valuation Allowances And Reserves Charged To Other Accounts ValuationAllowancesAndReservesChargedToOtherAccounts	-9100000	USD
CY2018	us-gaap	Valuation Allowances And Reserves Deductions ValuationAllowancesAndReservesDeductions	21800000	USD
CY2018Q4	us-gaap	Valuation Allowances And Reserves Balance ValuationAllowancesAndReservesBalance	40900000	USD
CY2016Q4	us-gaap	Valuation Allowances And Reserves Balance ValuationAllowancesAndReservesBalance	40900000	USD
CY2017	us-gaap	Valuation Allowances And Reserves Adjustments ValuationAllowancesAndReservesAdjustments	-300000	USD
CY2017	us-gaap	Valuation Allowances And Reserves Charged To Cost And Expense ValuationAllowancesAndReservesChargedToCostAndExpense	31200000	USD
CY2017	us-gaap	Valuation Allowances And Reserves Charged To Other Accounts ValuationAllowancesAndReservesChargedToOtherAccounts	-6400000	USD
CY2017	us-gaap	Valuation Allowances And Reserves Deductions ValuationAllowancesAndReservesDeductions	25900000	USD
CY2017Q4	us-gaap	Valuation Allowances And Reserves Balance ValuationAllowancesAndReservesBalance	39500000	USD

Files In Submission

Name	View Source	Status
0000107815-20-000091-index-headers.html	Edgar Link	pending
0000107815-20-000091-index.html	Edgar Link	pending
0000107815-20-000091.txt	Edgar Link	pending
0000107815-20-000091-xbrl.zip	Edgar Link	pending
a2019we10k.htm	Edgar Link	pending
a2019we10kexhibit231.htm	Edgar Link	pending
a2019we10kexhibit311.htm	Edgar Link	pending
a2019we10kexhibit312.htm	Edgar Link	pending
a2019we10kexhibit321.htm	Edgar Link	pending
a2019we10kexhibit322.htm	Edgar Link	pending
a2019we10kexhibit42.htm	Edgar Link	pending
a2019we10k_htm.xml	Edgar Link	completed
FilingSummary.xml	Edgar Link	unprocessable
Financial_Report.xlsx	Edgar Link	pending
MetaLinks.json	Edgar Link	pending
R1.htm	Edgar Link	pending
R10.htm	Edgar Link	pending
R100.htm	Edgar Link	pending
R101.htm	Edgar Link	pending
R102.htm	Edgar Link	pending
R103.htm	Edgar Link	pending
R104.htm	Edgar Link	pending
R105.htm	Edgar Link	pending
R106.htm	Edgar Link	pending
R107.htm	Edgar Link	pending
R108.htm	Edgar Link	pending
R109.htm	Edgar Link	pending
R11.htm	Edgar Link	pending
R110.htm	Edgar Link	pending
R111.htm	Edgar Link	pending
R112.htm	Edgar Link	pending
R113.htm	Edgar Link	pending
R114.htm	Edgar Link	pending
R115.htm	Edgar Link	pending
R116.htm	Edgar Link	pending
R117.htm	Edgar Link	pending
R118.htm	Edgar Link	pending
R119.htm	Edgar Link	pending
R12.htm	Edgar Link	pending
R120.htm	Edgar Link	pending
R121.htm	Edgar Link	pending
R122.htm	Edgar Link	pending
R123.htm	Edgar Link	pending
R124.htm	Edgar Link	pending
R125.htm	Edgar Link	pending
R13.htm	Edgar Link	pending
R14.htm	Edgar Link	pending
R15.htm	Edgar Link	pending
R16.htm	Edgar Link	pending
R17.htm	Edgar Link	pending
R18.htm	Edgar Link	pending
R19.htm	Edgar Link	pending
R2.htm	Edgar Link	pending
R20.htm	Edgar Link	pending
R21.htm	Edgar Link	pending
R22.htm	Edgar Link	pending
R23.htm	Edgar Link	pending
R24.htm	Edgar Link	pending
R25.htm	Edgar Link	pending
R26.htm	Edgar Link	pending
R27.htm	Edgar Link	pending
R28.htm	Edgar Link	pending
R29.htm	Edgar Link	pending
R3.htm	Edgar Link	pending
R30.htm	Edgar Link	pending
R31.htm	Edgar Link	pending
R32.htm	Edgar Link	pending
R33.htm	Edgar Link	pending
R34.htm	Edgar Link	pending
R35.htm	Edgar Link	pending
R36.htm	Edgar Link	pending
R37.htm	Edgar Link	pending
R38.htm	Edgar Link	pending
R39.htm	Edgar Link	pending
R4.htm	Edgar Link	pending
R40.htm	Edgar Link	pending
R41.htm	Edgar Link	pending
R42.htm	Edgar Link	pending
R43.htm	Edgar Link	pending
R44.htm	Edgar Link	pending
R45.htm	Edgar Link	pending
R46.htm	Edgar Link	pending
R47.htm	Edgar Link	pending
R48.htm	Edgar Link	pending
R49.htm	Edgar Link	pending
R5.htm	Edgar Link	pending
R50.htm	Edgar Link	pending
R51.htm	Edgar Link	pending
R52.htm	Edgar Link	pending
R53.htm	Edgar Link	pending
R54.htm	Edgar Link	pending
R55.htm	Edgar Link	pending
R56.htm	Edgar Link	pending
R57.htm	Edgar Link	pending
R58.htm	Edgar Link	pending
R59.htm	Edgar Link	pending
R6.htm	Edgar Link	pending
R60.htm	Edgar Link	pending
R61.htm	Edgar Link	pending
R62.htm	Edgar Link	pending
R63.htm	Edgar Link	pending
R64.htm	Edgar Link	pending
R65.htm	Edgar Link	pending
R66.htm	Edgar Link	pending
R67.htm	Edgar Link	pending
R68.htm	Edgar Link	pending
R69.htm	Edgar Link	pending
R7.htm	Edgar Link	pending
R70.htm	Edgar Link	pending
R71.htm	Edgar Link	pending
R72.htm	Edgar Link	pending
R73.htm	Edgar Link	pending
R74.htm	Edgar Link	pending
R75.htm	Edgar Link	pending
R76.htm	Edgar Link	pending
R77.htm	Edgar Link	pending
R78.htm	Edgar Link	pending
R79.htm	Edgar Link	pending
R8.htm	Edgar Link	pending
R80.htm	Edgar Link	pending
R81.htm	Edgar Link	pending
R82.htm	Edgar Link	pending
R83.htm	Edgar Link	pending
R84.htm	Edgar Link	pending
R85.htm	Edgar Link	pending
R86.htm	Edgar Link	pending
R87.htm	Edgar Link	pending
R88.htm	Edgar Link	pending
R89.htm	Edgar Link	pending
R9.htm	Edgar Link	pending
R90.htm	Edgar Link	pending
R91.htm	Edgar Link	pending
R92.htm	Edgar Link	pending
R93.htm	Edgar Link	pending
R94.htm	Edgar Link	pending
R95.htm	Edgar Link	pending
R96.htm	Edgar Link	pending
R97.htm	Edgar Link	pending
R98.htm	Edgar Link	pending
R99.htm	Edgar Link	pending
report.css	Edgar Link	pending
Show.js	Edgar Link	pending
wep-20191231.xsd	Edgar Link	pending
wep-20191231_cal.xml	Edgar Link	unprocessable
wep-20191231_def.xml	Edgar Link	unprocessable
wep-20191231_lab.xml	Edgar Link	unprocessable
wep-20191231_pre.xml	Edgar Link	unprocessable

Create your account

Find Stocks Worth Researching

Deeply Understand Businesses

Value Businesses Intelligently

$WELPP
WISCONSIN ELECTRIC POWER CO Stock $welpp

2019 Q4 Form 10-K Financial Statement

#000010781520000091 Filed on February 27, 2020

Income Statement

Balance Sheet

Cashflow Statement

Facts In Submission

Files In Submission

$WELPP WISCONSIN ELECTRIC POWER CO Stock $welpp

2019 Q4 Form 10-K Financial Statement

#000010781520000091 Filed on February 27, 2020

Income Statement

Balance Sheet

Cashflow Statement

Facts In Submission

Files In Submission

$WELPP
WISCONSIN ELECTRIC POWER CO Stock $welpp