$WEC
WEC ENERGY GROUP, INC. Stock $wec

$wec Overview Financials Valuation SEC Filings Company Website

2014 Form 10-K Financial Statement

#000010781515000040 Filed on February 27, 2015

Income Statement

Concept	2014	2013 Q4	2013
Revenue	$4.997B	$1.178B	$4.519B
YoY Change	10.58%	10.0%	6.42%
Cost Of Revenue	$2.259B	$227.2M	$1.827B
YoY Change	23.66%	27.78%	234.76%
Gross Profit	$2.738B	$951.1M	$2.692B
YoY Change	1.7%	6.46%	-27.26%
Gross Profit Margin	54.79%	80.72%	59.57%
Selling, General & Admin
YoY Change
% of Gross Profit
Research & Development
YoY Change
% of Gross Profit
Depreciation & Amortization	$391.4M	$102.6M	$340.1M
YoY Change	15.08%	9.73%	-6.62%
% of Gross Profit	14.3%	10.79%	12.63%
Operating Expenses	$2.849B	$679.5M	$2.765B
YoY Change	3.04%	-1.81%	2.39%
Operating Profit	$1.112B	$271.6M	$1.080B
YoY Change	2.96%	34.86%	7.98%
Interest Expense	$240.3M	-$44.30M	$250.9M
YoY Change	-4.22%	-11.58%	1.09%
% of Operating Profit	21.61%	-16.31%	23.23%
Other Income/Expense, Net	-$160.9M	$3.500M	-$163.6M
YoY Change	-1.65%	191.67%	-570.11%
Pretax Income	$951.2M	$230.8M	$916.5M
YoY Change	3.79%	51.34%	7.49%
Income Tax	$361.7M	$86.50M	$337.9M
% Of Pretax Income	38.03%	37.48%	36.87%
Net Earnings	$589.5M	$144.3M	$578.6M
YoY Change	1.88%	46.05%	5.91%
Net Earnings / Revenue	11.8%	12.25%	12.8%
Basic Earnings Per Share	$2.61		$2.54
Diluted Earnings Per Share	$2.59	$0.63	$2.51
COMMON SHARES
Basic Shares Outstanding	225.6M shares		227.6M shares
Diluted Shares Outstanding	227.5M shares		229.7M shares

Balance Sheet

Concept	2014	2013 Q4	2013
SHORT-TERM ASSETS
Cash & Short-Term Investments	$62.00M	$26.00M	$26.00M
YoY Change	138.46%	-27.78%	-27.78%
Cash & Equivalents	$62.00M	$26.00M	$26.00M
Short-Term Investments
Other Short-Term Assets	$187.0M	$12.90M	$469.0M
YoY Change	-60.13%	-79.23%	49.84%
Inventory	$401.0M	$329.0M	$329.0M
Prepaid Expenses		$145.7M
Receivables	$643.0M	$406.0M	$727.0M
Other Receivables	$0.00	$0.00	$0.00
Total Short-Term Assets	$1.293B	$1.551B	$1.551B
YoY Change	-16.63%	21.88%	21.84%
LONG-TERM ASSETS
Property, Plant & Equipment	$11.26B	$10.91B	$10.91B
YoY Change	3.23%	3.16%	3.16%
Goodwill		$441.9M
YoY Change		0.0%
Intangibles
YoY Change
Long-Term Investments	$457.0M	$439.0M	$439.0M
YoY Change	4.1%	6.04%	6.04%
Other Assets	$1.456B	$322.5M	$1.431B
YoY Change	1.75%	57.93%	-9.72%
Total Long-Term Assets	$13.61B	$12.89B	$13.22B
YoY Change	2.98%	-0.92%	1.58%
TOTAL ASSETS
Total Short-Term Assets	$1.293B	$1.551B	$1.551B
Total Long-Term Assets	$13.61B	$12.89B	$13.22B
Total Assets	$14.91B	$14.44B	$14.77B
YoY Change	0.92%	1.11%	3.39%
SHORT-TERM LIABILITIES
YoY Change
Accounts Payable	$363.0M	$342.6M	$343.0M
YoY Change	5.83%	-7.0%	-6.79%
Accrued Expenses	$95.00M	$97.00M	$97.00M
YoY Change	-2.06%	-3.96%	-3.96%
Deferred Revenue
YoY Change
Short-Term Debt	$618.0M	$537.0M	$537.0M
YoY Change	15.08%	35.95%	35.95%
Long-Term Debt Due	$424.0M	$342.2M	$342.0M
YoY Change	23.98%	-16.96%	-16.99%
Total Short-Term Liabilities	$1.669B	$1.496B	$1.496B
YoY Change	11.56%	3.82%	3.82%
LONG-TERM LIABILITIES
Long-Term Debt	$4.171B	$4.363B	$4.363B
YoY Change	-4.4%	-2.03%	-2.04%
Other Long-Term Liabilities	$1.952B	$295.9M	$2.012B
YoY Change	-2.98%	3.75%	-4.51%
Total Long-Term Liabilities	$6.123B	$4.659B	$6.375B
YoY Change	-3.95%	-1.69%	-2.83%
TOTAL LIABILITIES
Total Short-Term Liabilities	$1.669B	$1.496B	$1.496B
Total Long-Term Liabilities	$6.123B	$4.659B	$6.375B
Total Liabilities	$10.46B	$6.156B	$10.51B
YoY Change	-0.49%	-0.4%	3.81%
SHAREHOLDERS EQUITY
Retained Earnings
YoY Change
Common Stock		$4.233B
YoY Change		2.37%
Preferred Stock
YoY Change
Treasury Stock (at cost)
YoY Change
Treasury Stock Shares
Shareholders Equity	$4.450B	$4.263B	$4.263B
YoY Change
Total Liabilities & Shareholders Equity	$14.91B	$14.77B	$14.77B
YoY Change	0.92%	3.39%	3.39%

Cashflow Statement

Concept	2014	2013 Q4	2013
OPERATING ACTIVITIES
Net Income	$589.5M	$144.3M	$578.6M
YoY Change	1.88%	46.05%	5.91%
Depreciation, Depletion And Amortization	$391.4M	$102.6M	$340.1M
YoY Change	15.08%	9.73%	-6.62%
Cash From Operating Activities	$1.198B	$180.7M	$1.231B
YoY Change	-2.71%	-0.44%	4.86%
INVESTING ACTIVITIES
Capital Expenditures	$761.2M	$189.7M	$725.2M
YoY Change	4.96%	-17.34%	2.57%
Acquisitions	$0.00		$0.00
YoY Change
Other Investing Activities	-$3.600M	-$11.30M	$12.60M
YoY Change	-128.57%	29.89%	-37.31%
Cash From Investing Activities	-$756.8M	-$201.0M	-$745.8M
YoY Change	1.47%	-15.62%	2.22%
FINANCING ACTIVITIES
Cash Dividend Paid
YoY Change
Common Stock Issuance & Retirement, Net	$123.2M		$223.4M
YoY Change	-44.85%		45.82%
Debt Paid & Issued, Net	$324.3M		$397.2M
YoY Change	-18.35%		1856.65%
Cash From Financing Activities	-$405.0M	27.80M	-$494.8M
YoY Change	-18.15%	-64.94%	17.03%
NET CHANGE
Cash From Operating Activities	$1.198B	180.7M	$1.231B
Cash From Investing Activities	-$756.8M	-201.0M	-$745.8M
Cash From Financing Activities	-$405.0M	27.80M	-$494.8M
Net Change In Cash	$35.90M	7.500M	-$9.600M
YoY Change	-473.96%	-66.81%	-144.65%
FREE CASH FLOW
Cash From Operating Activities	$1.198B	$180.7M	$1.231B
Capital Expenditures	$761.2M	$189.7M	$725.2M
Free Cash Flow	$436.5M	-$9.000M	$505.8M
YoY Change	-13.7%	-81.25%	8.33%

Facts In Submission

Frame	Concept Type	Concept / XBRL Key	Value	Unit
CY2014	dei	Amendment Flag AmendmentFlag	false
CY2014	dei	Current Fiscal Year End Date CurrentFiscalYearEndDate	--12-31
CY2014	dei	Document Fiscal Period Focus DocumentFiscalPeriodFocus	FY
CY2014	dei	Document Fiscal Year Focus DocumentFiscalYearFocus	2014
CY2014	dei	Document Period End Date DocumentPeriodEndDate	2014-12-31
CY2014	dei	Document Type DocumentType	10-K
CY2014	dei	Entity Central Index Key EntityCentralIndexKey	0000783325
CY2015Q1	dei	Entity Common Stock Shares Outstanding EntityCommonStockSharesOutstanding	225506754	shares
CY2014	dei	Entity Current Reporting Status EntityCurrentReportingStatus	Yes
CY2014	dei	Entity Filer Category EntityFilerCategory	Large Accelerated Filer
CY2014Q2	dei	Entity Public Float EntityPublicFloat	10600000000	USD
CY2014	dei	Entity Registrant Name EntityRegistrantName	WISCONSIN ENERGY CORP
CY2014	dei	Entity Voluntary Filers EntityVoluntaryFilers	No
CY2014	dei	Entity Well Known Seasoned Issuer EntityWellKnownSeasonedIssuer	Yes
CY2013Q4	us-gaap	Accounts Payable Current AccountsPayableCurrent	342600000	USD
CY2014Q4	us-gaap	Accounts Payable Current AccountsPayableCurrent	363300000	USD
CY2013Q4	us-gaap	Accounts Receivable Net Current AccountsReceivableNetCurrent	406000000	USD
CY2014Q4	us-gaap	Accounts Receivable Net Current AccountsReceivableNetCurrent	352100000	USD
CY2013Q4	us-gaap	Accumulated Depreciation Depletion And Amortization Property Plant And Equipment AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment	4257100000	USD
CY2014Q4	us-gaap	Accumulated Depreciation Depletion And Amortization Property Plant And Equipment AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment	4485100000	USD
CY2012	us-gaap	Adjustments To Additional Paid In Capital Sharebased Compensation Requisite Service Period Recognition Value AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue	5200000	USD
CY2013	us-gaap	Adjustments To Additional Paid In Capital Sharebased Compensation Requisite Service Period Recognition Value AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue	6200000	USD
CY2014	us-gaap	Adjustments To Additional Paid In Capital Sharebased Compensation Requisite Service Period Recognition Value AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue	6500000	USD
CY2013	us-gaap	Adjustments To Additional Paid In Capital Tax Effect From Share Based Compensation AdjustmentsToAdditionalPaidInCapitalTaxEffectFromShareBasedCompensation	18100000	USD
CY2014	us-gaap	Adjustments To Additional Paid In Capital Tax Effect From Share Based Compensation AdjustmentsToAdditionalPaidInCapitalTaxEffectFromShareBasedCompensation	16800000	USD
CY2012	us-gaap	Allocated Share Based Compensation Expense AllocatedShareBasedCompensationExpense	22000000	USD
CY2013	us-gaap	Allocated Share Based Compensation Expense AllocatedShareBasedCompensationExpense	19000000	USD
CY2014	us-gaap	Allocated Share Based Compensation Expense AllocatedShareBasedCompensationExpense	21900000	USD
CY2013Q4	us-gaap	Allowance For Doubtful Accounts Receivable Current AllowanceForDoubtfulAccountsReceivableCurrent	61000000	USD
CY2014Q4	us-gaap	Allowance For Doubtful Accounts Receivable Current AllowanceForDoubtfulAccountsReceivableCurrent	74500000	USD
CY2012Q4	us-gaap	Asset Retirement Obligation AssetRetirementObligation	44300000	USD
CY2013Q4	us-gaap	Asset Retirement Obligation AssetRetirementObligation	42300000	USD
CY2014Q4	us-gaap	Asset Retirement Obligation AssetRetirementObligation	43600000	USD
CY2014Q4	us-gaap	Capital Leases Future Minimum Payments Due In Two Years CapitalLeasesFutureMinimumPaymentsDueInTwoYears	45100000	USD
CY2014Q4	us-gaap	Capitalization Longterm Debt And Equity CapitalizationLongtermDebtAndEquity	8636500000	USD
CY2011Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	14100000	USD
CY2014Q4	us-gaap	Capital Leases Future Minimum Payments Due Thereafter CapitalLeasesFutureMinimumPaymentsDueThereafter	41300000	USD
CY2014Q4	us-gaap	Capital Leases Future Minimum Payments Executory Costs CapitalLeasesFutureMinimumPaymentsExecutoryCosts	54700000	USD
CY2014Q4	us-gaap	Capital Leases Future Minimum Payments Interest Included In Payments CapitalLeasesFutureMinimumPaymentsInterestIncludedInPayments	34800000	USD
CY2014Q4	us-gaap	Capital Leases Future Minimum Payments Present Value Of Net Minimum Payments CapitalLeasesFutureMinimumPaymentsPresentValueOfNetMinimumPayments	84500000	USD
CY2013Q4	us-gaap	Capital Leases Lessee Balance Sheet Assets By Major Class Accumulated Deprecation CapitalLeasesLesseeBalanceSheetAssetsByMajorClassAccumulatedDeprecation	92500000	USD
CY2014Q4	us-gaap	Capital Leases Lessee Balance Sheet Assets By Major Class Accumulated Deprecation CapitalLeasesLesseeBalanceSheetAssetsByMajorClassAccumulatedDeprecation	98300000	USD
CY2013Q4	us-gaap	Capitalization Longterm Debt And Equity CapitalizationLongtermDebtAndEquity	8626600000	USD
CY2013	us-gaap	Asset Retirement Obligation Accretion Expense AssetRetirementObligationAccretionExpense	2400000	USD
CY2014	us-gaap	Asset Retirement Obligation Accretion Expense AssetRetirementObligationAccretionExpense	2400000	USD
CY2013	us-gaap	Asset Retirement Obligation Liabilities Settled AssetRetirementObligationLiabilitiesSettled	4400000	USD
CY2014	us-gaap	Asset Retirement Obligation Liabilities Settled AssetRetirementObligationLiabilitiesSettled	1100000	USD
CY2012Q4	us-gaap	Assets Assets	14285000000	USD
CY2013Q4	us-gaap	Assets Assets	14769400000	USD
CY2014Q4	us-gaap	Assets Assets	15163400000	USD
CY2013Q4	us-gaap	Assets Current AssetsCurrent	1551100000	USD
CY2014Q4	us-gaap	Assets Current AssetsCurrent	1535400000	USD
CY2014	us-gaap	Business Acquisition Date Of Acquisition Agreement1 BusinessAcquisitionDateOfAcquisitionAgreement1	2014-06-22
CY2012	us-gaap	Capital Expenditures Incurred But Not Yet Paid CapitalExpendituresIncurredButNotYetPaid	15700000	USD
CY2013	us-gaap	Capital Expenditures Incurred But Not Yet Paid CapitalExpendituresIncurredButNotYetPaid	4700000	USD
CY2014	us-gaap	Capital Expenditures Incurred But Not Yet Paid CapitalExpendituresIncurredButNotYetPaid	1800000	USD
CY2013Q4	us-gaap	Capital Lease Obligations CapitalLeaseObligations	104300000	USD
CY2014Q4	us-gaap	Capital Lease Obligations CapitalLeaseObligations	84500000	USD
CY2014Q4	us-gaap	Capital Lease Obligations Current CapitalLeaseObligationsCurrent	24600000	USD
CY2014Q4	us-gaap	Capital Lease Obligations Noncurrent CapitalLeaseObligationsNoncurrent	59900000	USD
CY2013Q4	us-gaap	Capital Leased Assets Gross CapitalLeasedAssetsGross	140300000	USD
CY2014Q4	us-gaap	Capital Leased Assets Gross CapitalLeasedAssetsGross	140300000	USD
CY2013Q4	us-gaap	Capital Leases Balance Sheet Assets By Major Class Net CapitalLeasesBalanceSheetAssetsByMajorClassNet	47800000	USD
CY2014Q4	us-gaap	Capital Leases Balance Sheet Assets By Major Class Net CapitalLeasesBalanceSheetAssetsByMajorClassNet	42000000	USD
CY2014Q4	us-gaap	Capital Leases Future Minimum Payments Due CapitalLeasesFutureMinimumPaymentsDue	174000000	USD
CY2014Q4	us-gaap	Capital Leases Future Minimum Payments Due Current CapitalLeasesFutureMinimumPaymentsDueCurrent	43500000	USD
CY2014Q4	us-gaap	Capital Leases Future Minimum Payments Due In Five Years CapitalLeasesFutureMinimumPaymentsDueInFiveYears	15500000	USD
CY2014Q4	us-gaap	Capital Leases Future Minimum Payments Due In Four Years CapitalLeasesFutureMinimumPaymentsDueInFourYears	14700000	USD
CY2014Q4	us-gaap	Capital Leases Future Minimum Payments Due In Three Years CapitalLeasesFutureMinimumPaymentsDueInThreeYears	13900000	USD
CY2012Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	35600000	USD
CY2013Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	26000000	USD
CY2014Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	61900000	USD
CY2012	us-gaap	Cash And Cash Equivalents Period Increase Decrease CashAndCashEquivalentsPeriodIncreaseDecrease	21500000	USD
CY2013	us-gaap	Cash And Cash Equivalents Period Increase Decrease CashAndCashEquivalentsPeriodIncreaseDecrease	-9600000	USD
CY2014	us-gaap	Cash And Cash Equivalents Period Increase Decrease CashAndCashEquivalentsPeriodIncreaseDecrease	35900000	USD
CY2013Q4	us-gaap	Collateral Already Posted Aggregate Fair Value CollateralAlreadyPostedAggregateFairValue	0	USD
CY2014Q4	us-gaap	Collateral Already Posted Aggregate Fair Value CollateralAlreadyPostedAggregateFairValue	11200000	USD
CY2013Q4	us-gaap	Commercial Paper CommercialPaper	537400000	USD
CY2014Q4	us-gaap	Commercial Paper CommercialPaper	617600000	USD
CY2013Q4	us-gaap	Commitments And Contingencies CommitmentsAndContingencies		USD
CY2014Q4	us-gaap	Commitments And Contingencies CommitmentsAndContingencies		USD
CY2013Q4	us-gaap	Common Stock Shares Authorized CommonStockSharesAuthorized	325000000	shares
CY2014Q4	us-gaap	Common Stock Shares Authorized CommonStockSharesAuthorized	325000000	shares
CY2013Q4	us-gaap	Common Stock Shares Outstanding CommonStockSharesOutstanding	225962959	shares
CY2014Q4	us-gaap	Common Stock Shares Outstanding CommonStockSharesOutstanding	225517339	shares
CY2013Q4	us-gaap	Common Stock Value CommonStockValue	4233000000	USD
CY2014Q4	us-gaap	Common Stock Value CommonStockValue	4419700000	USD
CY2013Q4	us-gaap	Construction In Progress Gross ConstructionInProgressGross	149600000	USD
CY2014Q4	us-gaap	Construction In Progress Gross ConstructionInProgressGross	191800000	USD
CY2012	us-gaap	Cost Of Domestic Regulated Gas Revenue CostOfDomesticRegulatedGasRevenue	545800000	USD
CY2013	us-gaap	Cost Of Domestic Regulated Gas Revenue CostOfDomesticRegulatedGasRevenue	674100000	USD
CY2014	us-gaap	Cost Of Domestic Regulated Gas Revenue CostOfDomesticRegulatedGasRevenue	1036100000	USD
CY2012	us-gaap	Cost Of Purchased Power CostOfPurchasedPower	1098600000	USD
CY2013	us-gaap	Cost Of Purchased Power CostOfPurchasedPower	1153000000	USD
CY2014	us-gaap	Cost Of Purchased Power CostOfPurchasedPower	1223300000	USD
CY2012	us-gaap	Current Income Tax Expense Benefit CurrentIncomeTaxExpenseBenefit	13100000	USD
CY2013	us-gaap	Current Income Tax Expense Benefit CurrentIncomeTaxExpenseBenefit	25200000	USD
CY2014	us-gaap	Current Income Tax Expense Benefit CurrentIncomeTaxExpenseBenefit	33600000	USD
CY2014Q4	us-gaap	Debt Instrument Face Amount DebtInstrumentFaceAmount	4552400000	USD
CY2013Q4	us-gaap	Debt Instrument Fair Value DebtInstrumentFairValue	4911800000	USD
CY2014Q4	us-gaap	Debt Instrument Fair Value DebtInstrumentFairValue	5126000000	USD
CY2014	us-gaap	Debt Instrument Interest Rate Terms DebtInstrumentInterestRateTerms	We have the option to defer interest payments on the Junior Notes, from time to time, for one or more periods of up to 10 consecutive years per period. During any period in which we defer interest payments, we may not declare or pay any dividends or distributions on, or redeem, repurchase or acquire, our common stock.
CY2014	us-gaap	Debt Instrument Restrictive Covenants DebtInstrumentRestrictiveCovenants	The RCC provides that we may not redeem, defease or purchase and our subsidiaries may not purchase any Junior Notes on or before May 15, 2037, unless, subject to certain limitations described in the RCC, during the 180 days prior to the date of redemption, defeasance or purchase, we have received a specified amount of proceeds from the sale of qualifying securities.
CY2013Q4	us-gaap	Debt Instrument Unamortized Discount Premium Net DebtInstrumentUnamortizedDiscountPremiumNet	25600000	USD
CY2014Q4	us-gaap	Debt Instrument Unamortized Discount Premium Net DebtInstrumentUnamortizedDiscountPremiumNet	26400000	USD
CY2012	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	294400000	USD
CY2013	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	313800000	USD
CY2014	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	329200000	USD
CY2012	us-gaap	Deferred Income Taxes And Tax Credits DeferredIncomeTaxesAndTaxCredits	293200000	USD
CY2013	us-gaap	Deferred Income Taxes And Tax Credits DeferredIncomeTaxesAndTaxCredits	312700000	USD
CY2014	us-gaap	Deferred Income Taxes And Tax Credits DeferredIncomeTaxesAndTaxCredits	328100000	USD
CY2013Q4	us-gaap	Deferred Revenue Noncurrent DeferredRevenueNoncurrent	664200000	USD
CY2014Q4	us-gaap	Deferred Revenue Noncurrent DeferredRevenueNoncurrent	614100000	USD
CY2012	us-gaap	Deferred Revenue Revenue Recognized DeferredRevenueRevenueRecognized	54900000	USD
CY2013	us-gaap	Deferred Revenue Revenue Recognized DeferredRevenueRevenueRecognized	56500000	USD
CY2014	us-gaap	Deferred Revenue Revenue Recognized DeferredRevenueRevenueRecognized	55700000	USD
CY2013Q4	us-gaap	Deferred Tax Assets Deferred Income DeferredTaxAssetsDeferredIncome	237000000	USD
CY2014Q4	us-gaap	Deferred Tax Assets Deferred Income DeferredTaxAssetsDeferredIncome	221300000	USD
CY2013Q4	us-gaap	Deferred Tax Assets Liabilities Net Current DeferredTaxAssetsLiabilitiesNetCurrent	310000000	USD
CY2014Q4	us-gaap	Deferred Tax Assets Liabilities Net Current DeferredTaxAssetsLiabilitiesNetCurrent	242700000	USD
CY2013Q4	us-gaap	Deferred Tax Assets Liabilities Net Noncurrent DeferredTaxAssetsLiabilitiesNetNoncurrent	-2634000000	USD
CY2014Q4	us-gaap	Deferred Tax Assets Liabilities Net Noncurrent DeferredTaxAssetsLiabilitiesNetNoncurrent	-2906700000	USD
CY2013Q4	us-gaap	Deferred Tax Assets Net DeferredTaxAssetsNet	854000000	USD
CY2014Q4	us-gaap	Deferred Tax Assets Net DeferredTaxAssetsNet	702100000	USD
CY2013Q4	us-gaap	Deferred Tax Assets Net Current DeferredTaxAssetsNetCurrent	379500000	USD
CY2014Q4	us-gaap	Deferred Tax Assets Net Current DeferredTaxAssetsNetCurrent	283100000	USD
CY2013Q4	us-gaap	Deferred Tax Assets Net Noncurrent DeferredTaxAssetsNetNoncurrent	474500000	USD
CY2014Q4	us-gaap	Deferred Tax Assets Net Noncurrent DeferredTaxAssetsNetNoncurrent	419000000	USD
CY2013Q4	us-gaap	Deferred Tax Assets Operating Loss Carryforwards DeferredTaxAssetsOperatingLossCarryforwards	283600000	USD
CY2014Q4	us-gaap	Deferred Tax Assets Operating Loss Carryforwards DeferredTaxAssetsOperatingLossCarryforwards	145700000	USD
CY2012	us-gaap	Deferred Tax Expense From Stock Options Exercised DeferredTaxExpenseFromStockOptionsExercised	0	USD
CY2013	us-gaap	Deferred Tax Expense From Stock Options Exercised DeferredTaxExpenseFromStockOptionsExercised	17800000	USD
CY2014	us-gaap	Deferred Tax Expense From Stock Options Exercised DeferredTaxExpenseFromStockOptionsExercised	19900000	USD
CY2013Q4	us-gaap	Deferred Tax Liabilities DeferredTaxLiabilities	3178000000	USD
CY2014Q4	us-gaap	Deferred Tax Liabilities DeferredTaxLiabilities	3366100000	USD
CY2013Q4	us-gaap	Deferred Tax Liabilities Current DeferredTaxLiabilitiesCurrent	69500000	USD
CY2014Q4	us-gaap	Deferred Tax Liabilities Current DeferredTaxLiabilitiesCurrent	40400000	USD
CY2013Q4	us-gaap	Deferred Tax Liabilities Noncurrent DeferredTaxLiabilitiesNoncurrent	3108500000	USD
CY2014Q4	us-gaap	Deferred Tax Liabilities Noncurrent DeferredTaxLiabilitiesNoncurrent	3325700000	USD
CY2013Q4	us-gaap	Deferred Tax Liabilities Property Plant And Equipment DeferredTaxLiabilitiesPropertyPlantAndEquipment	2574400000	USD
CY2014Q4	us-gaap	Deferred Tax Liabilities Property Plant And Equipment DeferredTaxLiabilitiesPropertyPlantAndEquipment	2750400000	USD
CY2014	us-gaap	Defined Benefit Plan Effect Of One Percentage Point Decrease On Accumulated Postretirement Benefit Obligation1 DefinedBenefitPlanEffectOfOnePercentagePointDecreaseOnAccumulatedPostretirementBenefitObligation1	-25400000	USD
CY2014	us-gaap	Defined Benefit Plan Effect Of One Percentage Point Decrease On Service And Interest Cost Components1 DefinedBenefitPlanEffectOfOnePercentagePointDecreaseOnServiceAndInterestCostComponents1	-2500000	USD
CY2014	us-gaap	Defined Benefit Plan Effect Of One Percentage Point Increase On Accumulated Postretirement Benefit Obligation DefinedBenefitPlanEffectOfOnePercentagePointIncreaseOnAccumulatedPostretirementBenefitObligation	30200000	USD
CY2014	us-gaap	Defined Benefit Plan Effect Of One Percentage Point Increase On Service And Interest Cost Components DefinedBenefitPlanEffectOfOnePercentagePointIncreaseOnServiceAndInterestCostComponents	3100000	USD
CY2012	us-gaap	Depreciation Amortization And Accretion Net DepreciationAmortizationAndAccretionNet	371700000	USD
CY2013	us-gaap	Depreciation Amortization And Accretion Net DepreciationAmortizationAndAccretionNet	400200000	USD
CY2014	us-gaap	Depreciation Amortization And Accretion Net DepreciationAmortizationAndAccretionNet	419400000	USD
CY2012	us-gaap	Depreciation And Amortization DepreciationAndAmortization	364200000	USD
CY2013	us-gaap	Depreciation And Amortization DepreciationAndAmortization	388100000	USD
CY2014	us-gaap	Depreciation And Amortization DepreciationAndAmortization	408800000	USD
CY2012	us-gaap	Depreciation Depletion And Amortization DepreciationDepletionAndAmortization	364200000	USD
CY2013	us-gaap	Depreciation Depletion And Amortization DepreciationDepletionAndAmortization	388100000	USD
CY2014	us-gaap	Depreciation Depletion And Amortization DepreciationDepletionAndAmortization	408800000	USD
CY2013Q4	us-gaap	Derivative Assets DerivativeAssets	11800000	USD
CY2014Q4	us-gaap	Derivative Assets DerivativeAssets	15300000	USD
CY2013	us-gaap	Derivative Gain Loss On Derivative Net DerivativeGainLossOnDerivativeNet	6900000	USD
CY2014	us-gaap	Derivative Gain Loss On Derivative Net DerivativeGainLossOnDerivativeNet	20500000	USD
CY2013Q4	us-gaap	Derivative Liabilities DerivativeLiabilities	300000	USD
CY2014Q4	us-gaap	Derivative Liabilities DerivativeLiabilities	12500000	USD
CY2014Q4	us-gaap	Disposal Group Including Discontinued Operation Long Lived Assets DisposalGroupIncludingDiscontinuedOperationLongLivedAssets	0	USD
CY2012	us-gaap	Dividends Common Stock Cash DividendsCommonStockCash	276300000	USD
CY2013	us-gaap	Dividends Common Stock Cash DividendsCommonStockCash	328900000	USD
CY2014	us-gaap	Dividends Common Stock Cash DividendsCommonStockCash	352000000	USD
CY2012	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	2.37
CY2013	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	2.54
CY2014	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	2.61
CY2012	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	2.35
CY2013	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	2.51
CY2014	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	2.59
CY2012	us-gaap	Effective Income Tax Rate Reconciliation At Federal Statutory Income Tax Rate EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate	0.350
CY2013	us-gaap	Effective Income Tax Rate Reconciliation At Federal Statutory Income Tax Rate EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate	0.350
CY2014	us-gaap	Effective Income Tax Rate Reconciliation At Federal Statutory Income Tax Rate EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate	0.350
CY2012	us-gaap	Effective Income Tax Rate Reconciliation Deductions Qualified Production Activities EffectiveIncomeTaxRateReconciliationDeductionsQualifiedProductionActivities	-0.015
CY2013	us-gaap	Effective Income Tax Rate Reconciliation Deductions Qualified Production Activities EffectiveIncomeTaxRateReconciliationDeductionsQualifiedProductionActivities	0.000
CY2014	us-gaap	Effective Income Tax Rate Reconciliation Deductions Qualified Production Activities EffectiveIncomeTaxRateReconciliationDeductionsQualifiedProductionActivities	0.000
CY2012	us-gaap	Effective Income Tax Rate Reconciliation Other Adjustments EffectiveIncomeTaxRateReconciliationOtherAdjustments	0.007
CY2013	us-gaap	Effective Income Tax Rate Reconciliation Other Adjustments EffectiveIncomeTaxRateReconciliationOtherAdjustments	0.000
CY2014	us-gaap	Effective Income Tax Rate Reconciliation Other Adjustments EffectiveIncomeTaxRateReconciliationOtherAdjustments	0.003
CY2012	us-gaap	Effective Income Tax Rate Reconciliation Tax Credits Investment EffectiveIncomeTaxRateReconciliationTaxCreditsInvestment	-0.001
CY2013	us-gaap	Effective Income Tax Rate Reconciliation Tax Credits Investment EffectiveIncomeTaxRateReconciliationTaxCreditsInvestment	-0.001
CY2014	us-gaap	Effective Income Tax Rate Reconciliation Tax Credits Investment EffectiveIncomeTaxRateReconciliationTaxCreditsInvestment	-0.001
CY2012	us-gaap	Effective Income Tax Rate Reconciliation Tax Credits Other EffectiveIncomeTaxRateReconciliationTaxCreditsOther	-0.019
CY2013	us-gaap	Effective Income Tax Rate Reconciliation Tax Credits Other EffectiveIncomeTaxRateReconciliationTaxCreditsOther	-0.018
CY2014	us-gaap	Effective Income Tax Rate Reconciliation Tax Credits Other EffectiveIncomeTaxRateReconciliationTaxCreditsOther	-0.018
CY2013Q4	us-gaap	Employee Related Liabilities Current EmployeeRelatedLiabilitiesCurrent	96900000	USD
CY2014Q4	us-gaap	Employee Related Liabilities Current EmployeeRelatedLiabilitiesCurrent	95100000	USD
CY2012	us-gaap	Employee Service Share Based Compensation Tax Benefit From Compensation Expense EmployeeServiceShareBasedCompensationTaxBenefitFromCompensationExpense	8800000	USD
CY2013	us-gaap	Employee Service Share Based Compensation Tax Benefit From Compensation Expense EmployeeServiceShareBasedCompensationTaxBenefitFromCompensationExpense	7600000	USD
CY2014	us-gaap	Employee Service Share Based Compensation Tax Benefit From Compensation Expense EmployeeServiceShareBasedCompensationTaxBenefitFromCompensationExpense	8800000	USD
CY2013Q4	us-gaap	Energy Related Inventory EnergyRelatedInventory	329400000	USD
CY2014Q4	us-gaap	Energy Related Inventory EnergyRelatedInventory	400600000	USD
CY2013Q4	us-gaap	Energy Related Inventory Natural Gas In Storage EnergyRelatedInventoryNaturalGasInStorage	77800000	USD
CY2014Q4	us-gaap	Energy Related Inventory Natural Gas In Storage EnergyRelatedInventoryNaturalGasInStorage	124800000	USD
CY2013Q4	us-gaap	Energy Related Inventory Other Fossil Fuel EnergyRelatedInventoryOtherFossilFuel	117700000	USD
CY2014Q4	us-gaap	Energy Related Inventory Other Fossil Fuel EnergyRelatedInventoryOtherFossilFuel	125600000	USD
CY2014Q4	us-gaap	Equity Method Investment Ownership Percentage EquityMethodInvestmentOwnershipPercentage	0.50
CY2014Q4	us-gaap	Equity Method Investment Underlying Equity In Net Assets EquityMethodInvestmentUnderlyingEquityInNetAssets	3700000000	USD
CY2012	us-gaap	Gain Loss On Sale Of Property GainLossOnSaleOfProperty	2700000	USD
CY2013	us-gaap	Gain Loss On Sale Of Property GainLossOnSaleOfProperty	800000	USD
CY2014	us-gaap	Gain Loss On Sale Of Property GainLossOnSaleOfProperty	7500000	USD
CY2013Q4	us-gaap	Goodwill Goodwill	441900000	USD
CY2014Q4	us-gaap	Goodwill Goodwill	441900000	USD
CY2014	us-gaap	Goodwill Impairment Loss GoodwillImpairmentLoss	0	USD
CY2012	us-gaap	Income Loss From Continuing Operations Before Income Taxes Minority Interest And Income Loss From Equity Method Investments IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments	852600000	USD
CY2013	us-gaap	Income Loss From Continuing Operations Before Income Taxes Minority Interest And Income Loss From Equity Method Investments IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments	915300000	USD
CY2014	us-gaap	Income Loss From Continuing Operations Before Income Taxes Minority Interest And Income Loss From Equity Method Investments IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments	950000000	USD
CY2012	us-gaap	Income Loss From Equity Method Investments IncomeLossFromEquityMethodInvestments	65500000	USD
CY2013	us-gaap	Income Loss From Equity Method Investments IncomeLossFromEquityMethodInvestments	68400000	USD
CY2014	us-gaap	Income Loss From Equity Method Investments IncomeLossFromEquityMethodInvestments	65900000	USD
CY2012	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	306300000	USD
CY2013	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	337900000	USD
CY2014	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	361700000	USD
CY2012	us-gaap	Income Tax Reconciliation Deductions Qualified Production Activities IncomeTaxReconciliationDeductionsQualifiedProductionActivities	12600000	USD
CY2013	us-gaap	Income Tax Reconciliation Deductions Qualified Production Activities IncomeTaxReconciliationDeductionsQualifiedProductionActivities	0	USD
CY2014	us-gaap	Income Tax Reconciliation Deductions Qualified Production Activities IncomeTaxReconciliationDeductionsQualifiedProductionActivities	0	USD
CY2012	us-gaap	Income Tax Reconciliation Income Tax Expense Benefit At Federal Statutory Income Tax Rate IncomeTaxReconciliationIncomeTaxExpenseBenefitAtFederalStatutoryIncomeTaxRate	298400000	USD
CY2013	us-gaap	Income Tax Reconciliation Income Tax Expense Benefit At Federal Statutory Income Tax Rate IncomeTaxReconciliationIncomeTaxExpenseBenefitAtFederalStatutoryIncomeTaxRate	320300000	USD
CY2014	us-gaap	Income Tax Reconciliation Income Tax Expense Benefit At Federal Statutory Income Tax Rate IncomeTaxReconciliationIncomeTaxExpenseBenefitAtFederalStatutoryIncomeTaxRate	332500000	USD
CY2012	us-gaap	Income Tax Reconciliation Other Adjustments IncomeTaxReconciliationOtherAdjustments	6600000	USD
CY2013	us-gaap	Income Tax Reconciliation Other Adjustments IncomeTaxReconciliationOtherAdjustments	200000	USD
CY2014	us-gaap	Income Tax Reconciliation Other Adjustments IncomeTaxReconciliationOtherAdjustments	2900000	USD
CY2012	us-gaap	Income Tax Reconciliation State And Local Income Taxes IncomeTaxReconciliationStateAndLocalIncomeTaxes	43300000	USD
CY2013	us-gaap	Income Tax Reconciliation State And Local Income Taxes IncomeTaxReconciliationStateAndLocalIncomeTaxes	49000000	USD
CY2014	us-gaap	Income Tax Reconciliation State And Local Income Taxes IncomeTaxReconciliationStateAndLocalIncomeTaxes	50500000	USD
CY2012	us-gaap	Income Tax Reconciliation Tax Credits Investment IncomeTaxReconciliationTaxCreditsInvestment	1200000	USD
CY2013	us-gaap	Income Tax Reconciliation Tax Credits Investment IncomeTaxReconciliationTaxCreditsInvestment	1100000	USD
CY2014	us-gaap	Income Tax Reconciliation Tax Credits Investment IncomeTaxReconciliationTaxCreditsInvestment	1100000	USD
CY2012	us-gaap	Income Tax Reconciliation Tax Credits Other IncomeTaxReconciliationTaxCreditsOther	15900000	USD
CY2013	us-gaap	Income Tax Reconciliation Tax Credits Other IncomeTaxReconciliationTaxCreditsOther	16700000	USD
CY2014	us-gaap	Income Tax Reconciliation Tax Credits Other IncomeTaxReconciliationTaxCreditsOther	17400000	USD
CY2014	us-gaap	Income Taxes Paid Net IncomeTaxesPaidNet	22000000	USD
CY2012	us-gaap	Increase Decrease In Accounts Payable IncreaseDecreaseInAccountsPayable	43800000	USD
CY2013	us-gaap	Increase Decrease In Accounts Payable IncreaseDecreaseInAccountsPayable	-14800000	USD
CY2014	us-gaap	Increase Decrease In Accounts Payable IncreaseDecreaseInAccountsPayable	23700000	USD
CY2012	us-gaap	Increase Decrease In Accounts Receivable IncreaseDecreaseInAccountsReceivable	-38300000	USD
CY2013	us-gaap	Increase Decrease In Accounts Receivable IncreaseDecreaseInAccountsReceivable	162900000	USD
CY2014	us-gaap	Increase Decrease In Accounts Receivable IncreaseDecreaseInAccountsReceivable	-80700000	USD
CY2012	us-gaap	Increase Decrease In Accrued Income Taxes Payable IncreaseDecreaseInAccruedIncomeTaxesPayable	116900000	USD
CY2013	us-gaap	Increase Decrease In Accrued Income Taxes Payable IncreaseDecreaseInAccruedIncomeTaxesPayable	36600000	USD
CY2014	us-gaap	Increase Decrease In Accrued Income Taxes Payable IncreaseDecreaseInAccruedIncomeTaxesPayable	-11400000	USD
CY2012	us-gaap	Increase Decrease In Inventories IncreaseDecreaseInInventories	-21300000	USD
CY2013	us-gaap	Increase Decrease In Inventories IncreaseDecreaseInInventories	-31300000	USD
CY2014	us-gaap	Increase Decrease In Inventories IncreaseDecreaseInInventories	71200000	USD
CY2012	us-gaap	Increase Decrease In Other Deferred Liability IncreaseDecreaseInOtherDeferredLiability	9200000	USD
CY2013	us-gaap	Increase Decrease In Other Deferred Liability IncreaseDecreaseInOtherDeferredLiability	-8700000	USD
CY2014	us-gaap	Increase Decrease In Other Deferred Liability IncreaseDecreaseInOtherDeferredLiability	-15100000	USD
CY2012	us-gaap	Increase Decrease In Other Operating Assets IncreaseDecreaseInOtherOperatingAssets	-12100000	USD
CY2013	us-gaap	Increase Decrease In Other Operating Assets IncreaseDecreaseInOtherOperatingAssets	-2800000	USD
CY2014	us-gaap	Increase Decrease In Other Operating Assets IncreaseDecreaseInOtherOperatingAssets	13900000	USD
CY2012	us-gaap	Increase Decrease In Other Operating Capital Net IncreaseDecreaseInOtherOperatingCapitalNet	164000000	USD
CY2013	us-gaap	Increase Decrease In Other Operating Capital Net IncreaseDecreaseInOtherOperatingCapitalNet	-49200000	USD
CY2014	us-gaap	Increase Decrease In Other Operating Capital Net IncreaseDecreaseInOtherOperatingCapitalNet	112100000	USD
CY2012	us-gaap	Increase Decrease In Other Operating Liabilities IncreaseDecreaseInOtherOperatingLiabilities	-14900000	USD
CY2013	us-gaap	Increase Decrease In Other Operating Liabilities IncreaseDecreaseInOtherOperatingLiabilities	7200000	USD
CY2014	us-gaap	Increase Decrease In Other Operating Liabilities IncreaseDecreaseInOtherOperatingLiabilities	-18800000	USD
CY2012	us-gaap	Increase Decrease In Restricted Cash IncreaseDecreaseInRestrictedCash	-42800000	USD
CY2013	us-gaap	Increase Decrease In Restricted Cash IncreaseDecreaseInRestrictedCash	-2700000	USD
CY2014	us-gaap	Increase Decrease In Restricted Cash IncreaseDecreaseInRestrictedCash	0	USD
CY2012	us-gaap	Interest Expense InterestExpense	248200000	USD
CY2013	us-gaap	Interest Expense InterestExpense	252100000	USD
CY2014	us-gaap	Interest Expense InterestExpense	241500000	USD
CY2012	us-gaap	Interest Paid Net InterestPaidNet	241200000	USD
CY2013	us-gaap	Interest Paid Net InterestPaidNet	250400000	USD
CY2014	us-gaap	Interest Paid Net InterestPaidNet	241100000	USD
CY2013Q4	us-gaap	Inventory Raw Materials And Supplies InventoryRawMaterialsAndSupplies	133900000	USD
CY2014Q4	us-gaap	Inventory Raw Materials And Supplies InventoryRawMaterialsAndSupplies	150200000	USD
CY2013Q4	us-gaap	Investments In Affiliates Subsidiaries Associates And Joint Ventures InvestmentsInAffiliatesSubsidiariesAssociatesAndJointVentures	402700000	USD
CY2014Q4	us-gaap	Investments In Affiliates Subsidiaries Associates And Joint Ventures InvestmentsInAffiliatesSubsidiariesAssociatesAndJointVentures	424100000	USD
CY2013Q4	us-gaap	Liabilities And Stockholders Equity LiabilitiesAndStockholdersEquity	14769400000	USD
CY2014Q4	us-gaap	Liabilities And Stockholders Equity LiabilitiesAndStockholdersEquity	15163400000	USD
CY2013Q4	us-gaap	Liabilities Current LiabilitiesCurrent	1496400000	USD
CY2014Q4	us-gaap	Liabilities Current LiabilitiesCurrent	1668700000	USD
CY2014Q4	us-gaap	Line Of Credit LineOfCredit	617600000	USD
CY2014Q4	us-gaap	Line Of Credit Facility Remaining Borrowing Capacity LineOfCreditFacilityRemainingBorrowingCapacity	1200000000	USD
CY2014	us-gaap	Long Term Contract For Purchase Of Electric Power Amount Of Long Term Debt Or Lease Obligation Outstanding LongTermContractForPurchaseOfElectricPowerAmountOfLongTermDebtOrLeaseObligationOutstanding	174000000	USD
CY2012	us-gaap	Long Term Contract For Purchase Of Electric Power Annual Minimum Debt Service Payment Required LongTermContractForPurchaseOfElectricPowerAnnualMinimumDebtServicePaymentRequired	45800000	USD
CY2013	us-gaap	Long Term Contract For Purchase Of Electric Power Annual Minimum Debt Service Payment Required LongTermContractForPurchaseOfElectricPowerAnnualMinimumDebtServicePaymentRequired	50300000	USD
CY2014	us-gaap	Long Term Contract For Purchase Of Electric Power Annual Minimum Debt Service Payment Required LongTermContractForPurchaseOfElectricPowerAnnualMinimumDebtServicePaymentRequired	53000000	USD
CY2014	us-gaap	Long Term Contract For Purchase Of Electric Power Date Of Contract Expiration LongTermContractForPurchaseOfElectricPowerDateOfContractExpiration	2022-12-31
CY2013Q4	us-gaap	Long Term Debt LongTermDebt	4626700000	USD
CY2014Q4	us-gaap	Long Term Debt LongTermDebt	4552400000	USD
CY2013Q4	us-gaap	Long Term Debt And Capital Lease Obligations LongTermDebtAndCapitalLeaseObligations	4363200000	USD
CY2014Q4	us-gaap	Long Term Debt And Capital Lease Obligations LongTermDebtAndCapitalLeaseObligations	4186400000	USD
CY2013Q4	us-gaap	Long Term Debt And Capital Lease Obligations Current LongTermDebtAndCapitalLeaseObligationsCurrent	342200000	USD
CY2014Q4	us-gaap	Long Term Debt And Capital Lease Obligations Current LongTermDebtAndCapitalLeaseObligationsCurrent	424100000	USD
CY2014Q4	us-gaap	Long Term Debt Maturities Repayments Of Principal After Year Five LongTermDebtMaturitiesRepaymentsOfPrincipalAfterYearFive	3532200000	USD
CY2014Q4	us-gaap	Long Term Debt Maturities Repayments Of Principal In Next Twelve Months LongTermDebtMaturitiesRepaymentsOfPrincipalInNextTwelveMonths	399500000	USD
CY2014Q4	us-gaap	Long Term Debt Maturities Repayments Of Principal In Year Five LongTermDebtMaturitiesRepaymentsOfPrincipalInYearFive	282700000	USD
CY2014Q4	us-gaap	Long Term Debt Maturities Repayments Of Principal In Year Four LongTermDebtMaturitiesRepaymentsOfPrincipalInYearFour	281100000	USD
CY2014Q4	us-gaap	Long Term Debt Maturities Repayments Of Principal In Year Three LongTermDebtMaturitiesRepaymentsOfPrincipalInYearThree	29500000	USD
CY2014Q4	us-gaap	Long Term Debt Maturities Repayments Of Principal In Year Two LongTermDebtMaturitiesRepaymentsOfPrincipalInYearTwo	27400000	USD
CY2013Q4	us-gaap	Long Term Debt Noncurrent LongTermDebtNoncurrent	4363200000	USD
CY2014Q4	us-gaap	Long Term Debt Noncurrent LongTermDebtNoncurrent	4186400000	USD
CY2013Q4	us-gaap	Long Term Investments LongTermInvestments	438800000	USD
CY2014Q4	us-gaap	Long Term Investments LongTermInvestments	456900000	USD
CY2012	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	-422800000	USD
CY2013	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	-494800000	USD
CY2014	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	-405000000	USD
CY2012	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-729600000	USD
CY2013	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-745800000	USD
CY2014	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-756800000	USD
CY2012	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	1173900000	USD
CY2013	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	1231000000	USD
CY2014	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	1197700000	USD
CY2012	us-gaap	Net Income Loss NetIncomeLoss	546300000	USD
CY2013	us-gaap	Net Income Loss NetIncomeLoss	577400000	USD
CY2014	us-gaap	Net Income Loss NetIncomeLoss	588300000	USD
CY2012	us-gaap	Operating Income Loss OperatingIncomeLoss	1000300000	USD
CY2013	us-gaap	Operating Income Loss OperatingIncomeLoss	1080100000	USD
CY2014	us-gaap	Operating Income Loss OperatingIncomeLoss	1112100000	USD
CY2014Q4	us-gaap	Operating Leases Future Minimum Payments Due OperatingLeasesFutureMinimumPaymentsDue	38100000	USD
CY2014Q4	us-gaap	Operating Leases Future Minimum Payments Due Current OperatingLeasesFutureMinimumPaymentsDueCurrent	5200000	USD
CY2014Q4	us-gaap	Operating Leases Future Minimum Payments Due In Five Years OperatingLeasesFutureMinimumPaymentsDueInFiveYears	1200000	USD
CY2014Q4	us-gaap	Operating Leases Future Minimum Payments Due In Four Years OperatingLeasesFutureMinimumPaymentsDueInFourYears	3100000	USD
CY2014Q4	us-gaap	Operating Leases Future Minimum Payments Due In Three Years OperatingLeasesFutureMinimumPaymentsDueInThreeYears	3200000	USD
CY2014Q4	us-gaap	Operating Leases Future Minimum Payments Due In Two Years OperatingLeasesFutureMinimumPaymentsDueInTwoYears	3900000	USD
CY2014Q4	us-gaap	Operating Leases Future Minimum Payments Due Thereafter OperatingLeasesFutureMinimumPaymentsDueThereafter	21500000	USD
CY2013Q4	us-gaap	Operating Loss Carryforwards OperatingLossCarryforwards	810300000	USD
CY2014Q4	us-gaap	Operating Loss Carryforwards OperatingLossCarryforwards	416200000	USD
CY2013Q4	us-gaap	Other Assets Current OtherAssetsCurrent	12900000	USD
CY2014Q4	us-gaap	Other Assets Current OtherAssetsCurrent	38600000	USD
CY2013Q4	us-gaap	Other Assets Noncurrent OtherAssetsNoncurrent	322500000	USD
CY2014Q4	us-gaap	Other Assets Noncurrent OtherAssetsNoncurrent	200300000	USD
CY2013Q4	us-gaap	Other Liabilities Current OtherLiabilitiesCurrent	177300000	USD
CY2014Q4	us-gaap	Other Liabilities Current OtherLiabilitiesCurrent	168600000	USD
CY2013Q4	us-gaap	Other Liabilities Noncurrent OtherLiabilitiesNoncurrent	295900000	USD
CY2014Q4	us-gaap	Other Liabilities Noncurrent OtherLiabilitiesNoncurrent	303000000	USD
CY2013Q4	us-gaap	Other Long Term Investments OtherLongTermInvestments	36100000	USD
CY2014Q4	us-gaap	Other Long Term Investments OtherLongTermInvestments	32800000	USD
CY2012	us-gaap	Other Nonoperating Income Expense OtherNonoperatingIncomeExpense	34800000	USD
CY2013	us-gaap	Other Nonoperating Income Expense OtherNonoperatingIncomeExpense	18800000	USD
CY2014	us-gaap	Other Nonoperating Income Expense OtherNonoperatingIncomeExpense	13400000	USD
CY2012	us-gaap	Payments For Proceeds From Other Investing Activities PaymentsForProceedsFromOtherInvestingActivities	20100000	USD
CY2013	us-gaap	Payments For Proceeds From Other Investing Activities PaymentsForProceedsFromOtherInvestingActivities	15300000	USD
CY2014	us-gaap	Payments For Proceeds From Other Investing Activities PaymentsForProceedsFromOtherInvestingActivities	-3600000	USD
CY2012	us-gaap	Payments For Proceeds From Removal Costs PaymentsForProceedsFromRemovalCosts	38300000	USD
CY2013	us-gaap	Payments For Proceeds From Removal Costs PaymentsForProceedsFromRemovalCosts	37800000	USD
CY2014	us-gaap	Payments For Proceeds From Removal Costs PaymentsForProceedsFromRemovalCosts	25100000	USD
CY2012	us-gaap	Payments For Repurchase Of Common Stock PaymentsForRepurchaseOfCommonStock	153200000	USD
CY2013	us-gaap	Payments For Repurchase Of Common Stock PaymentsForRepurchaseOfCommonStock	223400000	USD
CY2014	us-gaap	Payments For Repurchase Of Common Stock PaymentsForRepurchaseOfCommonStock	123200000	USD
CY2012	us-gaap	Payments Of Dividends Common Stock PaymentsOfDividendsCommonStock	276300000	USD
CY2013	us-gaap	Payments Of Dividends Common Stock PaymentsOfDividendsCommonStock	328900000	USD
CY2014	us-gaap	Payments Of Dividends Common Stock PaymentsOfDividendsCommonStock	352000000	USD
CY2012	us-gaap	Payments To Acquire Interest In Subsidiaries And Affiliates PaymentsToAcquireInterestInSubsidiariesAndAffiliates	15700000	USD
CY2013	us-gaap	Payments To Acquire Interest In Subsidiaries And Affiliates PaymentsToAcquireInterestInSubsidiariesAndAffiliates	10500000	USD
CY2014	us-gaap	Payments To Acquire Interest In Subsidiaries And Affiliates PaymentsToAcquireInterestInSubsidiariesAndAffiliates	13100000	USD
CY2012	us-gaap	Payments To Acquire Productive Assets PaymentsToAcquireProductiveAssets	707000000	USD
CY2013	us-gaap	Payments To Acquire Productive Assets PaymentsToAcquireProductiveAssets	687400000	USD
CY2014	us-gaap	Payments To Acquire Productive Assets PaymentsToAcquireProductiveAssets	736100000	USD
CY2012	us-gaap	Payments To Acquire Property Plant And Equipment PaymentsToAcquirePropertyPlantAndEquipment	707000000	USD
CY2013	us-gaap	Payments To Acquire Property Plant And Equipment PaymentsToAcquirePropertyPlantAndEquipment	687400000	USD
CY2014	us-gaap	Payments To Acquire Property Plant And Equipment PaymentsToAcquirePropertyPlantAndEquipment	736100000	USD
CY2012	us-gaap	Pension And Other Postretirement Benefit Contributions PensionAndOtherPostretirementBenefitContributions	100000000	USD
CY2013	us-gaap	Pension And Other Postretirement Benefit Contributions PensionAndOtherPostretirementBenefitContributions	0	USD
CY2014	us-gaap	Pension And Other Postretirement Benefit Contributions PensionAndOtherPostretirementBenefitContributions	0	USD
CY2013Q4	us-gaap	Pension And Other Postretirement Defined Benefit Plans Liabilities Noncurrent PensionAndOtherPostretirementDefinedBenefitPlansLiabilitiesNoncurrent	173200000	USD
CY2014Q4	us-gaap	Pension And Other Postretirement Defined Benefit Plans Liabilities Noncurrent PensionAndOtherPostretirementDefinedBenefitPlansLiabilitiesNoncurrent	203800000	USD
CY2013Q4	us-gaap	Postemployment Benefits Liability Current And Noncurrent PostemploymentBenefitsLiabilityCurrentAndNoncurrent	4200000	USD
CY2014Q4	us-gaap	Postemployment Benefits Liability Current And Noncurrent PostemploymentBenefitsLiabilityCurrentAndNoncurrent	3300000	USD
CY2013Q4	us-gaap	Preferred Stock Value PreferredStockValue	30400000	USD
CY2014Q4	us-gaap	Preferred Stock Value PreferredStockValue	30400000	USD
CY2013Q4	us-gaap	Prepaid Expense Current PrepaidExpenseCurrent	145700000	USD
CY2014Q4	us-gaap	Prepaid Expense Current PrepaidExpenseCurrent	148200000	USD
CY2012	us-gaap	Proceeds From Income Tax Refunds ProceedsFromIncomeTaxRefunds	107000000	USD
CY2013	us-gaap	Proceeds From Income Tax Refunds ProceedsFromIncomeTaxRefunds	39600000	USD
CY2012	us-gaap	Proceeds From Issuance Of Long Term Debt ProceedsFromIssuanceOfLongTermDebt	251800000	USD
CY2013	us-gaap	Proceeds From Issuance Of Long Term Debt ProceedsFromIssuanceOfLongTermDebt	251000000	USD
CY2014	us-gaap	Proceeds From Issuance Of Long Term Debt ProceedsFromIssuanceOfLongTermDebt	250000000	USD
CY2012	us-gaap	Proceeds From Payments For Other Financing Activities ProceedsFromPaymentsForOtherFinancingActivities	700000	USD
CY2013	us-gaap	Proceeds From Payments For Other Financing Activities ProceedsFromPaymentsForOtherFinancingActivities	12400000	USD
CY2014	us-gaap	Proceeds From Payments For Other Financing Activities ProceedsFromPaymentsForOtherFinancingActivities	14000000	USD
CY2012	us-gaap	Proceeds From Repayments Of Short Term Debt ProceedsFromRepaymentsOfShortTermDebt	-275300000	USD
CY2013	us-gaap	Proceeds From Repayments Of Short Term Debt ProceedsFromRepaymentsOfShortTermDebt	142800000	USD
CY2014	us-gaap	Proceeds From Repayments Of Short Term Debt ProceedsFromRepaymentsOfShortTermDebt	80200000	USD
CY2012	us-gaap	Proceeds From Sale Of Productive Assets ProceedsFromSaleOfProductiveAssets	8700000	USD
CY2013	us-gaap	Proceeds From Sale Of Productive Assets ProceedsFromSaleOfProductiveAssets	2500000	USD
CY2014	us-gaap	Proceeds From Sale Of Productive Assets ProceedsFromSaleOfProductiveAssets	13900000	USD
CY2012	us-gaap	Proceeds From Stock Options Exercised ProceedsFromStockOptionsExercised	49800000	USD
CY2013	us-gaap	Proceeds From Stock Options Exercised ProceedsFromStockOptionsExercised	48500000	USD
CY2014	us-gaap	Proceeds From Stock Options Exercised ProceedsFromStockOptionsExercised	50300000	USD
CY2012	us-gaap	Profit Loss ProfitLoss	546300000	USD
CY2013	us-gaap	Profit Loss ProfitLoss	577400000	USD
CY2014	us-gaap	Profit Loss ProfitLoss	588300000	USD
CY2013Q4	us-gaap	Property Plant And Equipment Net PropertyPlantAndEquipmentNet	10906600000	USD
CY2014Q4	us-gaap	Property Plant And Equipment Net PropertyPlantAndEquipmentNet	11257700000	USD
CY2013Q4	us-gaap	Property Plant And Equipment Other PropertyPlantAndEquipmentOther	14966300000	USD
CY2014Q4	us-gaap	Property Plant And Equipment Other PropertyPlantAndEquipmentOther	15509000000	USD
CY2012	us-gaap	Public Utilities Allowance For Funds Used During Construction Capitalized Cost Of Equity PublicUtilitiesAllowanceForFundsUsedDuringConstructionCapitalizedCostOfEquity	35300000	USD
CY2013	us-gaap	Public Utilities Allowance For Funds Used During Construction Capitalized Cost Of Equity PublicUtilitiesAllowanceForFundsUsedDuringConstructionCapitalizedCostOfEquity	18300000	USD
CY2014	us-gaap	Public Utilities Allowance For Funds Used During Construction Capitalized Cost Of Equity PublicUtilitiesAllowanceForFundsUsedDuringConstructionCapitalizedCostOfEquity	5600000	USD
CY2012	us-gaap	Public Utilities Allowance For Funds Used During Construction Capitalized Interest PublicUtilitiesAllowanceForFundsUsedDuringConstructionCapitalizedInterest	14700000	USD
CY2013	us-gaap	Public Utilities Allowance For Funds Used During Construction Capitalized Interest PublicUtilitiesAllowanceForFundsUsedDuringConstructionCapitalizedInterest	7700000	USD
CY2014	us-gaap	Public Utilities Allowance For Funds Used During Construction Capitalized Interest PublicUtilitiesAllowanceForFundsUsedDuringConstructionCapitalizedInterest	2300000	USD
CY2014	us-gaap	Public Utilities Disclosure Of Rate Matters PublicUtilitiesDisclosureOfRateMatters	Our retail electric rates in Wisconsin are established by the PSCW and include base amounts for fuel and purchased power costs. The electric fuel rules in Wisconsin allow us to defer, for subsequent rate recovery or refund, any under-collection or over-collection of fuel costs that are outside of the symmetrical fuel cost tolerance, which the PSCW set at plus or minus 2% of the approved fuel cost plan. The deferred under-collected amounts are subject to an excess revenues test. Our retail gas rates include monthly adjustments which permit the recovery or refund of actual purchased gas costs. We defer any difference between actual gas costs incurred (adjusted for a sharing mechanism) and costs recovered through rates as a current asset or liability. The deferred balance is returned to or recovered from customers at intervals throughout the year.
CY2012	us-gaap	Public Utilities Property Plant And Equipment Disclosure Of Composite Depreciation Rate For Plants In Service PublicUtilitiesPropertyPlantAndEquipmentDisclosureOfCompositeDepreciationRateForPlantsInService	0.029
CY2013	us-gaap	Public Utilities Property Plant And Equipment Disclosure Of Composite Depreciation Rate For Plants In Service PublicUtilitiesPropertyPlantAndEquipmentDisclosureOfCompositeDepreciationRateForPlantsInService	0.029
CY2014	us-gaap	Public Utilities Property Plant And Equipment Disclosure Of Composite Depreciation Rate For Plants In Service PublicUtilitiesPropertyPlantAndEquipmentDisclosureOfCompositeDepreciationRateForPlantsInService	0.029
CY2013Q4	us-gaap	Public Utilities Property Plant And Equipment Plant In Service PublicUtilitiesPropertyPlantAndEquipmentPlantInService	10709200000	USD
CY2014Q4	us-gaap	Public Utilities Property Plant And Equipment Plant In Service PublicUtilitiesPropertyPlantAndEquipmentPlantInService	11023900000	USD
CY2013Q4	us-gaap	Regulatory Assets RegulatoryAssets	1108500000	USD
CY2014Q4	us-gaap	Regulatory Assets RegulatoryAssets	1271200000	USD
CY2013Q4	us-gaap	Regulatory Assets Noncurrent RegulatoryAssetsNoncurrent	1108500000	USD
CY2014Q4	us-gaap	Regulatory Assets Noncurrent RegulatoryAssetsNoncurrent	1271200000	USD
CY2013Q4	us-gaap	Regulatory Liabilities RegulatoryLiabilities	879100000	USD
CY2014Q4	us-gaap	Regulatory Liabilities RegulatoryLiabilities	830600000	USD
CY2013Q4	us-gaap	Regulatory Liability Noncurrent RegulatoryLiabilityNoncurrent	879100000	USD
CY2014Q4	us-gaap	Regulatory Liability Noncurrent RegulatoryLiabilityNoncurrent	830600000	USD
CY2014Q4	us-gaap	Remaining Amounts Of Regulatory Assets For Which No Return On Investment During Recovery Period Is Provided RemainingAmountsOfRegulatoryAssetsForWhichNoReturnOnInvestmentDuringRecoveryPeriodIsProvided	12800000	USD
CY2013	us-gaap	Repayments Of Long Term Capital Lease Obligations RepaymentsOfLongTermCapitalLeaseObligations	33700000	USD
CY2014	us-gaap	Repayments Of Long Term Capital Lease Obligations RepaymentsOfLongTermCapitalLeaseObligations	34900000	USD
CY2012	us-gaap	Repayments Of Long Term Debt RepaymentsOfLongTermDebt	20300000	USD
CY2013	us-gaap	Repayments Of Long Term Debt RepaymentsOfLongTermDebt	397200000	USD
CY2014	us-gaap	Repayments Of Long Term Debt RepaymentsOfLongTermDebt	324300000	USD
CY2012	us-gaap	Revenue From Grants RevenueFromGrants	0	USD
CY2013	us-gaap	Revenue From Grants RevenueFromGrants	48000000	USD
CY2014	us-gaap	Revenue From Grants RevenueFromGrants	17400000	USD
CY2012	us-gaap	Revenues Revenues	4246400000	USD
CY2013	us-gaap	Revenues Revenues	4519000000	USD
CY2014	us-gaap	Revenues Revenues	4997100000	USD
CY2012	us-gaap	Sales Revenue Energy Services SalesRevenueEnergyServices	4246400000	USD
CY2013	us-gaap	Sales Revenue Energy Services SalesRevenueEnergyServices	4519000000	USD
CY2014	us-gaap	Sales Revenue Energy Services SalesRevenueEnergyServices	4997100000	USD
CY2012	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Expected Dividend Rate ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedDividendRate	0.039
CY2013	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Expected Dividend Rate ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedDividendRate	0.037
CY2014	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Expected Dividend Rate ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedDividendRate	0.038
CY2012	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Expected Volatility Rate ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedVolatilityRate	0.190
CY2013	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Expected Volatility Rate ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedVolatilityRate	0.180
CY2014	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Expected Volatility Rate ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedVolatilityRate	0.180
CY2014Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Exercisable Number ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableNumber	3890339	shares
CY2014Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Exercisable Weighted Average Exercise Price ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableWeightedAverageExercisePrice	24.10
CY2012	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Exercises In Period Total Intrinsic Value ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisesInPeriodTotalIntrinsicValue	47500000	USD
CY2013	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Exercises In Period Total Intrinsic Value ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisesInPeriodTotalIntrinsicValue	44500000	USD
CY2014	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Exercises In Period Total Intrinsic Value ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisesInPeriodTotalIntrinsicValue	50500000	USD
CY2015Q1	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Grants In Period Gross ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodGross	516475	shares
CY2012	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Grants In Period Weighted Average Grant Date Fair Value ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageGrantDateFairValue	3.34
CY2013	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Grants In Period Weighted Average Grant Date Fair Value ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageGrantDateFairValue	3.45
CY2014	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Grants In Period Weighted Average Grant Date Fair Value ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageGrantDateFairValue	4.18
CY2014Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Number ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber	6770194	shares
CY2014Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Weighted Average Exercise Price ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice	29.99
CY2015Q1	us-gaap	Share Based Compensation Arrangements By Share Based Payment Award Options Grants In Period Weighted Average Exercise Price ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageExercisePrice	52.895
CY2012	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Fair Value Assumptions Expected Term1 SharebasedCompensationArrangementBySharebasedPaymentAwardFairValueAssumptionsExpectedTerm1	P5Y11M
CY2013	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Fair Value Assumptions Expected Term1 SharebasedCompensationArrangementBySharebasedPaymentAwardFairValueAssumptionsExpectedTerm1	P5Y11M
CY2014	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Fair Value Assumptions Expected Term1 SharebasedCompensationArrangementBySharebasedPaymentAwardFairValueAssumptionsExpectedTerm1	P5Y10M
CY2014	us-gaap	Sharebased Compensation Shares Authorized Under Stock Option Plans Exercise Price Range Exercisable Options Weighted Average Remaining Contractual Term2 SharebasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeExercisableOptionsWeightedAverageRemainingContractualTerm2	P3Y11M
CY2014	us-gaap	Sharebased Compensation Shares Authorized Under Stock Option Plans Exercise Price Range Outstanding Options Weighted Average Remaining Contractual Term2 SharebasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeOutstandingOptionsWeightedAverageRemainingContractualTerm2	P5Y8M
CY2012	us-gaap	Stock Issued During Period Value Stock Options Exercised StockIssuedDuringPeriodValueStockOptionsExercised	49800000	USD
CY2013	us-gaap	Stock Issued During Period Value Stock Options Exercised StockIssuedDuringPeriodValueStockOptionsExercised	48500000	USD
CY2014	us-gaap	Stock Issued During Period Value Stock Options Exercised StockIssuedDuringPeriodValueStockOptionsExercised	50300000	USD
CY2012	us-gaap	Stock Repurchased During Period Shares StockRepurchasedDuringPeriodShares	4300000	shares
CY2013	us-gaap	Stock Repurchased During Period Shares StockRepurchasedDuringPeriodShares	5400000	shares
CY2014	us-gaap	Stock Repurchased During Period Shares StockRepurchasedDuringPeriodShares	2700000	shares
CY2012	us-gaap	Stock Repurchased During Period Value StockRepurchasedDuringPeriodValue	153200000	USD
CY2013	us-gaap	Stock Repurchased During Period Value StockRepurchasedDuringPeriodValue	223400000	USD
CY2014	us-gaap	Stock Repurchased During Period Value StockRepurchasedDuringPeriodValue	123200000	USD
CY2011Q4	us-gaap	Stockholders Equity StockholdersEquity	3963300000	USD
CY2012Q4	us-gaap	Stockholders Equity StockholdersEquity	4135100000	USD
CY2013Q4	us-gaap	Stockholders Equity StockholdersEquity	4233000000	USD
CY2014Q4	us-gaap	Stockholders Equity StockholdersEquity	4419700000	USD
CY2013Q4	us-gaap	Tax Credit Carryforward Amount TaxCreditCarryforwardAmount	58600000	USD
CY2014Q4	us-gaap	Tax Credit Carryforward Amount TaxCreditCarryforwardAmount	76000000	USD
CY2013Q4	us-gaap	Tax Credit Carryforward Deferred Tax Asset TaxCreditCarryforwardDeferredTaxAsset	58600000	USD
CY2014Q4	us-gaap	Tax Credit Carryforward Deferred Tax Asset TaxCreditCarryforwardDeferredTaxAsset	76000000	USD
CY2012	us-gaap	Taxes Excluding Income And Excise Taxes TaxesExcludingIncomeAndExciseTaxes	121400000	USD
CY2013	us-gaap	Taxes Excluding Income And Excise Taxes TaxesExcludingIncomeAndExciseTaxes	116700000	USD
CY2014	us-gaap	Taxes Excluding Income And Excise Taxes TaxesExcludingIncomeAndExciseTaxes	121800000	USD
CY2012Q4	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	11300000	USD
CY2013Q4	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	8400000	USD
CY2014Q4	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	7200000	USD
CY2013	us-gaap	Unrecognized Tax Benefits Decreases Resulting From Prior Period Tax Positions UnrecognizedTaxBenefitsDecreasesResultingFromPriorPeriodTaxPositions	2900000	USD
CY2014	us-gaap	Unrecognized Tax Benefits Decreases Resulting From Prior Period Tax Positions UnrecognizedTaxBenefitsDecreasesResultingFromPriorPeriodTaxPositions	1200000	USD
CY2013Q4	us-gaap	Unrecognized Tax Benefits Income Tax Penalties Accrued UnrecognizedTaxBenefitsIncomeTaxPenaltiesAccrued	0	USD
CY2014Q4	us-gaap	Unrecognized Tax Benefits Income Tax Penalties Accrued UnrecognizedTaxBenefitsIncomeTaxPenaltiesAccrued	0	USD
CY2012	us-gaap	Unrecognized Tax Benefits Income Tax Penalties Expense UnrecognizedTaxBenefitsIncomeTaxPenaltiesExpense	0	USD
CY2013	us-gaap	Unrecognized Tax Benefits Income Tax Penalties Expense UnrecognizedTaxBenefitsIncomeTaxPenaltiesExpense	0	USD
CY2014	us-gaap	Unrecognized Tax Benefits Income Tax Penalties Expense UnrecognizedTaxBenefitsIncomeTaxPenaltiesExpense	0	USD
CY2013Q4	us-gaap	Unrecognized Tax Benefits Interest On Income Taxes Accrued UnrecognizedTaxBenefitsInterestOnIncomeTaxesAccrued	400000	USD
CY2014Q4	us-gaap	Unrecognized Tax Benefits Interest On Income Taxes Accrued UnrecognizedTaxBenefitsInterestOnIncomeTaxesAccrued	700000	USD
CY2012	us-gaap	Unrecognized Tax Benefits Interest On Income Taxes Expense UnrecognizedTaxBenefitsInterestOnIncomeTaxesExpense	200000	USD
CY2013	us-gaap	Unrecognized Tax Benefits Interest On Income Taxes Expense UnrecognizedTaxBenefitsInterestOnIncomeTaxesExpense	200000	USD
CY2014	us-gaap	Unrecognized Tax Benefits Interest On Income Taxes Expense UnrecognizedTaxBenefitsInterestOnIncomeTaxesExpense	300000	USD
CY2013Q4	us-gaap	Unrecognized Tax Benefits That Would Impact Effective Tax Rate UnrecognizedTaxBenefitsThatWouldImpactEffectiveTaxRate	0	USD
CY2014Q4	us-gaap	Unrecognized Tax Benefits That Would Impact Effective Tax Rate UnrecognizedTaxBenefitsThatWouldImpactEffectiveTaxRate	0	USD
CY2012	us-gaap	Utilities Operating Expense UtilitiesOperatingExpense	3246100000	USD
CY2013	us-gaap	Utilities Operating Expense UtilitiesOperatingExpense	3486900000	USD
CY2014	us-gaap	Utilities Operating Expense UtilitiesOperatingExpense	3902400000	USD
CY2012	us-gaap	Utilities Operating Expense Maintenance And Operations UtilitiesOperatingExpenseMaintenanceAndOperations	1116100000	USD
CY2013	us-gaap	Utilities Operating Expense Maintenance And Operations UtilitiesOperatingExpenseMaintenanceAndOperations	1155000000	USD
CY2014	us-gaap	Utilities Operating Expense Maintenance And Operations UtilitiesOperatingExpenseMaintenanceAndOperations	1112400000	USD
CY2012	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	232800000	shares
CY2013	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	229700000	shares
CY2014	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	227500000	shares
CY2012	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	230200000	shares
CY2013	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	227600000	shares
CY2014	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	225600000	shares
CY2014	wec	Ability To Declare Common Dividends Limited To Percentage Of Net Income AbilityToDeclareCommonDividendsLimitedToPercentageOfNetIncome	limited to 75% or 50%
CY2013Q4	wec	Accrued Revenues AccruedRevenues	321100000	USD
CY2014Q4	wec	Accrued Revenues AccruedRevenues	291300000	USD
CY2014	wec	Capital Lease Agreements With Vie Remaining Term In Years CapitalLeaseAgreementsWithVIERemainingTermInYears	P8Y
CY2014	wec	Capital Lease Obligation At End Of Life Of Contract CapitalLeaseObligationAtEndOfLifeOfContract	0	USD
CY2014Q4	wec	Capital Leases Future Minimum Payments Due Less Executory Costs CapitalLeasesFutureMinimumPaymentsDueLessExecutoryCosts	119300000	USD
CY2014	wec	Cashpershareof Integryscommonstock CashpershareofIntegryscommonstock	18.58
CY2014Q4	wec	Current Pension Plan Asset Allocation In Equity Investments CurrentPensionPlanAssetAllocationInEquityInvestments	0.45
CY2015Q1	wec	Current Pension Plan Asset Allocation In Equity Investments CurrentPensionPlanAssetAllocationInEquityInvestments	0.35
CY2014Q4	wec	Current Pension Plan Asset Allocation In Fixed Income Investments CurrentPensionPlanAssetAllocationInFixedIncomeInvestments	0.55
CY2015Q1	wec	Current Pension Plan Asset Allocation In Fixed Income Investments CurrentPensionPlanAssetAllocationInFixedIncomeInvestments	0.55
CY2015Q1	wec	Currentpensionplanassetallocationinrealestateinvestments Currentpensionplanassetallocationinrealestateinvestments	0.10
CY2014	wec	Debt Securities In Cash Equivalents Maximum Period Until Maturity DebtSecuritiesInCashEquivalentsMaximumPeriodUntilMaturity	P0Y3M
CY2013Q4	wec	Deferred Tax Assets Construction Advances Non Current DeferredTaxAssetsConstructionAdvancesNonCurrent	18300000	USD
CY2014Q4	wec	Deferred Tax Assets Construction Advances Non Current DeferredTaxAssetsConstructionAdvancesNonCurrent	18900000	USD
CY2013Q4	wec	Deferred Tax Assets Employee Benefits And Compensation Current DeferredTaxAssetsEmployeeBenefitsAndCompensationCurrent	13800000	USD
CY2014Q4	wec	Deferred Tax Assets Employee Benefits And Compensation Current DeferredTaxAssetsEmployeeBenefitsAndCompensationCurrent	13700000	USD
CY2013Q4	wec	Deferred Tax Assets Employee Benefits And Compensation Non Current DeferredTaxAssetsEmployeeBenefitsAndCompensationNonCurrent	95600000	USD
CY2014Q4	wec	Deferred Tax Assets Employee Benefits And Compensation Non Current DeferredTaxAssetsEmployeeBenefitsAndCompensationNonCurrent	98200000	USD
CY2013Q4	wec	Deferred Tax Assets Future Federal Tax Benefits Current DeferredTaxAssetsFutureFederalTaxBenefitsCurrent	309700000	USD
CY2014Q4	wec	Deferred Tax Assets Future Federal Tax Benefits Current DeferredTaxAssetsFutureFederalTaxBenefitsCurrent	221700000	USD
CY2013Q4	wec	Deferred Tax Assets Future Federal Tax Benefits Non Current DeferredTaxAssetsFutureFederalTaxBenefitsNonCurrent	32500000	USD
CY2014Q4	wec	Deferred Tax Assets Future Federal Tax Benefits Non Current DeferredTaxAssetsFutureFederalTaxBenefitsNonCurrent	0	USD
CY2013Q4	wec	Deferred Tax Assets Other Current DeferredTaxAssetsOtherCurrent	56000000	USD
CY2014Q4	wec	Deferred Tax Assets Other Current DeferredTaxAssetsOtherCurrent	47700000	USD
CY2013Q4	wec	Deferred Tax Assets Other Non Current DeferredTaxAssetsOtherNonCurrent	62900000	USD
CY2014Q4	wec	Deferred Tax Assets Other Non Current DeferredTaxAssetsOtherNonCurrent	51800000	USD
CY2013Q4	wec	Deferred Tax Assets Uncertainty In Income Taxes DeferredTaxAssetsUncertaintyInIncomeTaxes	8400000	USD
CY2014Q4	wec	Deferred Tax Assets Uncertainty In Income Taxes DeferredTaxAssetsUncertaintyInIncomeTaxes	7200000	USD
CY2013Q4	wec	Deferred Tax Liabilities Deferred Transmission Costs Non Current DeferredTaxLiabilitiesDeferredTransmissionCostsNonCurrent	50800000	USD
CY2014Q4	wec	Deferred Tax Liabilities Deferred Transmission Costs Non Current DeferredTaxLiabilitiesDeferredTransmissionCostsNonCurrent	58500000	USD
CY2013Q4	wec	Deferred Tax Liabilities Employee Benefits And Compensation Non Current DeferredTaxLiabilitiesEmployeeBenefitsAndCompensationNonCurrent	238500000	USD
CY2014Q4	wec	Deferred Tax Liabilities Employee Benefits And Compensation Non Current DeferredTaxLiabilitiesEmployeeBenefitsAndCompensationNonCurrent	242500000	USD
CY2013Q4	wec	Deferred Tax Liabilities Investment In Transmission Affiliate Non Current DeferredTaxLiabilitiesInvestmentInTransmissionAffiliateNonCurrent	169900000	USD
CY2014Q4	wec	Deferred Tax Liabilities Investment In Transmission Affiliate Non Current DeferredTaxLiabilitiesInvestmentInTransmissionAffiliateNonCurrent	188600000	USD
CY2013Q4	wec	Deferred Tax Liabilities Other Non Current DeferredTaxLiabilitiesOtherNonCurrent	74900000	USD
CY2014Q4	wec	Deferred Tax Liabilities Other Non Current DeferredTaxLiabilitiesOtherNonCurrent	85700000	USD
CY2013Q4	wec	Deferred Tax Liabilities Prepaid Items Current DeferredTaxLiabilitiesPrepaidItemsCurrent	69500000	USD
CY2014Q4	wec	Deferred Tax Liabilities Prepaid Items Current DeferredTaxLiabilitiesPrepaidItemsCurrent	40400000	USD
CY2012	wec	Effective Income Tax Rate Reconciliation Allowance For Funds Used During Construction Capitalized Cost Of Equity EffectiveIncomeTaxRateReconciliationAllowanceForFundsUsedDuringConstructionCapitalizedCostOfEquity	-0.014
CY2013	wec	Effective Income Tax Rate Reconciliation Allowance For Funds Used During Construction Capitalized Cost Of Equity EffectiveIncomeTaxRateReconciliationAllowanceForFundsUsedDuringConstructionCapitalizedCostOfEquity	-0.007
CY2014	wec	Effective Income Tax Rate Reconciliation Allowance For Funds Used During Construction Capitalized Cost Of Equity EffectiveIncomeTaxRateReconciliationAllowanceForFundsUsedDuringConstructionCapitalizedCostOfEquity	-0.002
CY2012	wec	Effective Income Tax Rate Reconciliation State And Local Income Taxes Net Of Federal Tax Benefit EffectiveIncomeTaxRateReconciliationStateAndLocalIncomeTaxesNetOfFederalTaxBenefit	0.051
CY2013	wec	Effective Income Tax Rate Reconciliation State And Local Income Taxes Net Of Federal Tax Benefit EffectiveIncomeTaxRateReconciliationStateAndLocalIncomeTaxesNetOfFederalTaxBenefit	0.053
CY2014	wec	Effective Income Tax Rate Reconciliation State And Local Income Taxes Net Of Federal Tax Benefit EffectiveIncomeTaxRateReconciliationStateAndLocalIncomeTaxesNetOfFederalTaxBenefit	0.053
CY2012	wec	Effective Tax Rate Reconciliation1603 Grant Amount EffectiveTaxRateReconciliation1603GrantAmount	0	USD
CY2013	wec	Effective Tax Rate Reconciliation1603 Grant Amount EffectiveTaxRateReconciliation1603GrantAmount	-7400000	USD
CY2014	wec	Effective Tax Rate Reconciliation1603 Grant Amount EffectiveTaxRateReconciliation1603GrantAmount	-3800000	USD
CY2012	wec	Effective Tax Rate Reconciliation1603 Grant Percent EffectiveTaxRateReconciliation1603GrantPercent	0.000
CY2013	wec	Effective Tax Rate Reconciliation1603 Grant Percent EffectiveTaxRateReconciliation1603GrantPercent	-0.008
CY2014	wec	Effective Tax Rate Reconciliation1603 Grant Percent EffectiveTaxRateReconciliation1603GrantPercent	-0.004
CY2014Q4	wec	Estimateofacquisitionrelateddebt Estimateofacquisitionrelateddebt	1500000000	USD
CY2014	wec	Estimateofnumberof We Csharestobeissuedforacquisition EstimateofnumberofWECsharestobeissuedforacquisition	91000000	shares
CY2015	wec	Exercise Price Of Stock Option On Grant Date ExercisePriceOfStockOptionOnGrantDate	no less than 100% of the common stock's fair market value
CY2013Q4	wec	Fair Value Assets Measured On Recurring Basis Total Assets FairValueAssetsMeasuredOnRecurringBasisTotalAssets	11800000	USD
CY2014Q4	wec	Fair Value Assets Measured On Recurring Basis Total Assets FairValueAssetsMeasuredOnRecurringBasisTotalAssets	15300000	USD
CY2013Q4	wec	Fair Value Liabilities Measured On Recurring Basis Total Liabilities FairValueLiabilitiesMeasuredOnRecurringBasisTotalLiabilities	300000	USD
CY2014Q4	wec	Fair Value Liabilities Measured On Recurring Basis Total Liabilities FairValueLiabilitiesMeasuredOnRecurringBasisTotalLiabilities	12500000	USD
CY2014	wec	Fuel Cost Tolerance Range Set By Regulators Percent FuelCostToleranceRangeSetByRegulatorsPercent	0.02
CY2014	wec	Grant Revenue Received GrantRevenueReceived	76.2
CY2014	wec	Health Care Cost Trend Rate Post Specified Age HealthCareCostTrendRatePostSpecifiedAge	65
CY2014	wec	Health Care Cost Trend Rate Up To Specified Age HealthCareCostTrendRateUpToSpecifiedAge	65
CY2012	wec	Income Tax Expense Benefit Effective Tax Rate IncomeTaxExpenseBenefitEffectiveTaxRate	0.359
CY2013	wec	Income Tax Expense Benefit Effective Tax Rate IncomeTaxExpenseBenefitEffectiveTaxRate	0.369
CY2014	wec	Income Tax Expense Benefit Effective Tax Rate IncomeTaxExpenseBenefitEffectiveTaxRate	0.381
CY2012	wec	Income Tax Reconciliation Allowance For Funds Used During Construction Capitalized Cost Of Equity IncomeTaxReconciliationAllowanceForFundsUsedDuringConstructionCapitalizedCostOfEquity	12300000	USD
CY2013	wec	Income Tax Reconciliation Allowance For Funds Used During Construction Capitalized Cost Of Equity IncomeTaxReconciliationAllowanceForFundsUsedDuringConstructionCapitalizedCostOfEquity	6400000	USD
CY2014	wec	Income Tax Reconciliation Allowance For Funds Used During Construction Capitalized Cost Of Equity IncomeTaxReconciliationAllowanceForFundsUsedDuringConstructionCapitalizedCostOfEquity	1900000	USD
CY2009	wec	Increase In Regulatory Asset Due To Minimum Lease Payment IncreaseInRegulatoryAssetDueToMinimumLeasePayment	78500000	USD
CY2012	wec	Matching Contributions Under Savings Plans MatchingContributionsUnderSavingsPlans	13800000	USD
CY2013	wec	Matching Contributions Under Savings Plans MatchingContributionsUnderSavingsPlans	14200000	USD
CY2014	wec	Matching Contributions Under Savings Plans MatchingContributionsUnderSavingsPlans	14200000	USD
CY2014	wec	Maximum Duration To Recover Outstanding Regulatory Assets MaximumDurationToRecoverOutstandingRegulatoryAssets	P8Y
CY2014	wec	Maximum Percentage Award Based On Performance Unit MaximumPercentageAwardBasedOnPerformanceUnit	1.75
CY2014	wec	Minimum Duration To Recover Outstanding Regulatory Assets MinimumDurationToRecoverOutstandingRegulatoryAssets	P1Y
CY2014	wec	Minimum Energy Requirement In Gas Fired Cogeneration Facility MinimumEnergyRequirementInGasFiredCogenerationFacility	0
CY2014	wec	Minimum Percentage Award Based On Performance Unit MinimumPercentageAwardBasedOnPerformanceUnit	0.00
CY2015Q1	wec	New401k Contributionfornewhires New401kContributionfornewhires	0.06
CY2014Q4	wec	Number Of Series Of Tax Exempt Pollution Control Refunding Bonds NumberOfSeriesOfTaxExemptPollutionControlRefundingBonds	2
CY2014	wec	Numberof We Csharesper Integrysshare NumberofWECsharesperIntegrysshare	1.128	shares
CY2012	wec	Other Income And Deductions Net Other OtherIncomeAndDeductionsNetOther	-3200000	USD
CY2013	wec	Other Income And Deductions Net Other OtherIncomeAndDeductionsNetOther	-300000	USD
CY2014	wec	Other Income And Deductions Net Other OtherIncomeAndDeductionsNetOther	300000	USD
CY2015Q1	wec	Other Post Retirement Employee Benefits Asset Allocation In Equity Investments OtherPostRetirementEmployeeBenefitsAssetAllocationInEquityInvestments	0.60
CY2015Q1	wec	Other Post Retirement Employee Benefits Asset Allocation In Fixed Income Investments OtherPostRetirementEmployeeBenefitsAssetAllocationInFixedIncomeInvestments	0.40
CY2014Q4	wec	Percentage Of Equity Method Investment Exceeding Consolidated Net Assets PercentageOfEquityMethodInvestmentExceedingConsolidatedNetAssets	0.25
CY2014	wec	Power Capacity Under Capital Lease PowerCapacityUnderCapitalLease	236
CY2014	wec	Power Purchase Contract Expected Future Renewable Period PowerPurchaseContractExpectedFutureRenewablePeriod	P10Y
CY2014	wec	Power Purchase Contract Period PowerPurchaseContractPeriod	P25Y
CY2014	wec	Preferred Interest Rate PreferredInterestRate	0.0360
CY2013Q4	wec	Property Related Deferred Tax Assets Non Current PropertyRelatedDeferredTaxAssetsNonCurrent	28200000	USD
CY2014Q4	wec	Property Related Deferred Tax Assets Non Current PropertyRelatedDeferredTaxAssetsNonCurrent	28800000	USD
CY2014	wec	Regulatory Asset Value At End Of Life Of Contract RegulatoryAssetValueAtEndOfLifeOfContract	0	USD
CY2014Q4	wec	Regulatoryassetsearningareturnbasedonshorttermrates Regulatoryassetsearningareturnbasedonshorttermrates	115100000	USD
CY2012	wec	Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Expected Forfeiture Rate ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedForfeitureRate	0.020
CY2013	wec	Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Expected Forfeiture Rate ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedForfeitureRate	0.020
CY2014	wec	Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Expected Forfeiture Rate ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedForfeitureRate	0.020
CY2014	wec	Stock Equity To Total Capitalization StockEquityToTotalCapitalization	is less than 25% and 20%
CY2013Q4	wec	Total Capitalization TotalCapitalization	8626600000	USD
CY2014Q4	wec	Total Capitalization TotalCapitalization	8636500000	USD
CY2013Q4	wec	Total Deferred Charges And Other Assets TotalDeferredChargesAndOtherAssets	1872900000	USD
CY2014Q4	wec	Total Deferred Charges And Other Assets TotalDeferredChargesAndOtherAssets	1913400000	USD
CY2013Q4	wec	Total Deferred Credits And Other Liabilities TotalDeferredCreditsAndOtherLiabilities	4646400000	USD
CY2014Q4	wec	Total Deferred Credits And Other Liabilities TotalDeferredCreditsAndOtherLiabilities	4858200000	USD

Files In Submission

Name	View Source	Status
0000107815-15-000040-index-headers.html	Edgar Link	pending
0000107815-15-000040-index.html	Edgar Link	pending
0000107815-15-000040.txt	Edgar Link	pending
0000107815-15-000040-xbrl.zip	Edgar Link	pending
FilingSummary.xml	Edgar Link	unprocessable
Financial_Report.xls	Edgar Link	pending
Financial_Report.xlsx	Edgar Link	pending
R1.htm	Edgar Link	pending
R10.htm	Edgar Link	pending
R11.htm	Edgar Link	pending
R12.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
R9.htm	Edgar Link	pending
report.css	Edgar Link	pending
Show.js	Edgar Link	pending
wec-20141231.xml	Edgar Link	completed
wec-20141231.xsd	Edgar Link	pending
wec-20141231_cal.xml	Edgar Link	unprocessable
wec-20141231_def.xml	Edgar Link	unprocessable
wec-20141231_lab.xml	Edgar Link	unprocessable
wec-20141231_pre.xml	Edgar Link	unprocessable
wec1231201410-k.htm	Edgar Link	pending
wec12312014ex101.htm	Edgar Link	pending
wec12312014ex1013.htm	Edgar Link	pending
wec12312014ex104.htm	Edgar Link	pending
wec12312014ex105.htm	Edgar Link	pending
wec12312014ex108.htm	Edgar Link	pending
wec12312014ex109.htm	Edgar Link	pending
wec12312014ex211.htm	Edgar Link	pending
wec12312014ex231.htm	Edgar Link	pending
wec12312014ex311.htm	Edgar Link	pending
wec12312014ex312.htm	Edgar Link	pending
wec12312014ex321.htm	Edgar Link	pending
wec12312014ex322.htm	Edgar Link	pending
weclogo.jpg	Edgar Link	pending

Create your account

Find Stocks Worth Researching

Deeply Understand Businesses

Value Businesses Intelligently

$WEC
WEC ENERGY GROUP, INC. Stock $wec

2014 Form 10-K Financial Statement

#000010781515000040 Filed on February 27, 2015

Income Statement

Balance Sheet

Cashflow Statement

Facts In Submission

Files In Submission

$WEC WEC ENERGY GROUP, INC. Stock $wec

2014 Form 10-K Financial Statement

#000010781515000040 Filed on February 27, 2015

Income Statement

Balance Sheet

Cashflow Statement

Facts In Submission

Files In Submission

$WEC
WEC ENERGY GROUP, INC. Stock $wec