$XEL
XCEL ENERGY INC Stock $xel

$xel Overview Financials Valuation SEC Filings Company Website

2012 Q4 Form 10-K Financial Statement

#000007290314000009 Filed on February 21, 2014

Income Statement

Concept	2012 Q4	2012 Q3	2012 Q2
Revenue	$2.551B	$2.724B	$2.275B
YoY Change	-0.67%	-3.79%	-6.71%
Cost Of Revenue	$332.1M	$57.00M	$95.70M
YoY Change	-12.28%	-39.55%	-43.67%
Gross Profit	$2.219B	$2.667B	$2.179B
YoY Change	1.33%	-2.56%	-3.94%
Gross Profit Margin	86.98%	97.91%	95.79%
Selling, General & Admin	$69.30M	$68.90M	$58.60M
YoY Change	0.0%	-3.37%	-10.53%
% of Gross Profit	3.12%	2.58%	2.69%
Research & Development
YoY Change
% of Gross Profit
Depreciation & Amortization	$236.1M	$243.5M	$231.0M
YoY Change	18.64%	-1.38%	-1.2%
% of Gross Profit	10.64%	9.13%	10.6%
Operating Expenses	$1.903B	$1.947B	$1.773B
YoY Change	3.08%	-6.66%	-7.1%
Operating Profit	$316.4M	$720.4M	$405.7M
YoY Change	-8.02%	10.58%	12.88%
Interest Expense	-$117.7M	$153.7M	$151.9M
YoY Change	-13.26%	-216.19%	-217.49%
% of Operating Profit	-37.2%	21.34%	37.45%
Other Income/Expense, Net	$11.60M	$488.0K	$728.0K
YoY Change	5.45%	-96.06%	-94.44%
Pretax Income	$210.3M	$601.0M	$284.9M
YoY Change	-4.15%	13.05%	17.14%
Income Tax	$70.00M	$202.8M	$101.8M
% Of Pretax Income	33.29%	33.75%	35.74%
Net Earnings	$140.2M	$398.1M	$183.1M
YoY Change	-0.23%	17.68%	15.28%
Net Earnings / Revenue	5.49%	14.61%	8.05%
Basic Earnings Per Share	$0.29	$0.82	$0.38
Diluted Earnings Per Share	$0.29	$0.81	$0.38
COMMON SHARES
Basic Shares Outstanding		488.1M shares	487.7M shares
Diluted Shares Outstanding		488.6M shares	488.0M shares

Balance Sheet

Concept	2012 Q4	2012 Q3	2012 Q2
SHORT-TERM ASSETS
Cash & Short-Term Investments	$82.00M	$747.0M	$64.00M
YoY Change	34.43%	285.05%	-37.25%
Cash & Equivalents	$82.32M	$747.3M	$63.53M
Short-Term Investments
Other Short-Term Assets	$1.289B	$1.357B	$1.378B
YoY Change	-16.84%	3.83%	13.6%
Inventory	$535.6M	$563.0M	$473.0M
Prepaid Expenses
Receivables	$718.0M	$705.0M	$645.0M
Other Receivables	$0.00	$0.00	$0.00
Total Short-Term Assets	$2.625B	$3.371B	$2.560B
YoY Change	-12.0%	17.83%	3.27%
LONG-TERM ASSETS
Property, Plant & Equipment	$23.81B	$23.40B	$23.05B
YoY Change	6.52%	7.69%	7.13%
Goodwill
YoY Change
Intangibles
YoY Change
Long-Term Investments	$91.20M
YoY Change
Other Assets	$200.0M	$4.285B	$4.212B
YoY Change	-95.19%	8.56%	5.01%
Total Long-Term Assets	$28.52B	$27.69B	$27.26B
YoY Change	7.55%	7.82%	6.8%
TOTAL ASSETS
Total Short-Term Assets	$2.625B	$3.371B	$2.560B
Total Long-Term Assets	$28.52B	$27.69B	$27.26B
Total Assets	$31.14B	$31.06B	$29.82B
YoY Change	5.57%	8.83%	6.49%
SHORT-TERM LIABILITIES
YoY Change
Accounts Payable	$959.1M	$885.0M	$871.0M
YoY Change	6.33%	5.73%	-9.08%
Accrued Expenses	$162.0M	$161.0M	$177.0M
YoY Change	-8.47%	-0.62%	7.27%
Deferred Revenue
YoY Change
Short-Term Debt	$602.0M	$304.0M	$481.0M
YoY Change	174.89%	508.0%	-26.68%
Long-Term Debt Due	$258.0M	$859.0M	$1.312B
YoY Change	-75.66%	85.93%	2329.63%
Total Short-Term Liabilities	$2.937B	$3.161B	$3.831B
YoY Change	-18.16%	19.15%	45.17%
LONG-TERM LIABILITIES
Long-Term Debt	$10.14B	$10.11B	$8.706B
YoY Change	14.63%	6.94%	-6.02%
Other Long-Term Liabilities	$229.2M	$4.306B	$4.304B
YoY Change	-94.87%	7.65%	7.44%
Total Long-Term Liabilities	$229.2M	$14.41B	$13.01B
YoY Change	-98.28%	7.15%	-1.96%
TOTAL LIABILITIES
Total Short-Term Liabilities	$2.937B	$3.161B	$3.831B
Total Long-Term Liabilities	$229.2M	$14.41B	$13.01B
Total Liabilities	$3.166B	$22.21B	$21.25B
YoY Change	-84.93%	11.02%	8.05%
SHAREHOLDERS EQUITY
Retained Earnings	$2.414B
YoY Change
Common Stock	$6.573B
YoY Change
Preferred Stock
YoY Change
Treasury Stock (at cost)
YoY Change
Treasury Stock Shares
Shareholders Equity	$8.874B	$8.850B	$8.574B
YoY Change
Total Liabilities & Shareholders Equity	$31.14B	$31.06B	$29.82B
YoY Change	5.57%	8.83%	6.49%

Cashflow Statement

Concept	2012 Q4	2012 Q3	2012 Q2
OPERATING ACTIVITIES
Net Income	$140.2M	$398.1M	$183.1M
YoY Change	-0.23%	17.68%	15.28%
Depreciation, Depletion And Amortization	$236.1M	$243.5M	$231.0M
YoY Change	18.64%	-1.38%	-1.2%
Cash From Operating Activities	$432.9M	$706.6M	$387.8M
YoY Change	-10.07%	-11.79%	-16.37%
INVESTING ACTIVITIES
Capital Expenditures	-$764.4M	-$702.2M	-$606.4M
YoY Change	27.1%	45.71%	4.19%
Acquisitions
YoY Change
Other Investing Activities	$41.10M	$49.00M	$49.00M
YoY Change	183.45%	-154.99%	-57.9%
Cash From Investing Activities	-$723.3M	-$653.2M	-$557.4M
YoY Change	23.26%	14.38%	19.72%
FINANCING ACTIVITIES
Cash Dividend Paid
YoY Change
Common Stock Issuance & Retirement, Net
YoY Change
Debt Paid & Issued, Net
YoY Change
Cash From Financing Activities	-374.5M	630.4M	133.3M
YoY Change	1232.74%	-559.14%	1364.84%
NET CHANGE
Cash From Operating Activities	432.9M	706.6M	387.8M
Cash From Investing Activities	-723.3M	-653.2M	-557.4M
Cash From Financing Activities	-374.5M	630.4M	133.3M
Net Change In Cash	-664.9M	683.8M	-36.30M
YoY Change	398.05%	638.44%	-604.17%
FREE CASH FLOW
Cash From Operating Activities	$432.9M	$706.6M	$387.8M
Capital Expenditures	-$764.4M	-$702.2M	-$606.4M
Free Cash Flow	$1.197B	$1.409B	$994.2M
YoY Change	10.57%	9.81%	-4.92%

Facts In Submission

Frame	Concept Type	Concept / XBRL Key	Value	Unit
CY2012Q4	us-gaap	Accounts Payable Current AccountsPayableCurrent	959093000	USD
CY2013Q4	us-gaap	Accounts Payable Current AccountsPayableCurrent	1261238000	USD
CY2013Q4	us-gaap	Accounts Receivable Gross Current AccountsReceivableGrossCurrent	797267000	USD
CY2012Q4	us-gaap	Accounts Receivable Gross Current AccountsReceivableGrossCurrent	769440000	USD
CY2012Q4	us-gaap	Accounts Receivable Net Current AccountsReceivableNetCurrent	718046000	USD
CY2013Q4	us-gaap	Accounts Receivable Net Current AccountsReceivableNetCurrent	744160000	USD
CY2013Q4	us-gaap	Accumulated Deferred Investment Tax Credit AccumulatedDeferredInvestmentTaxCredit	79239000	USD
CY2012Q4	us-gaap	Accumulated Deferred Investment Tax Credit AccumulatedDeferredInvestmentTaxCredit	82761000	USD
CY2012Q4	us-gaap	Accumulated Depreciation Depletion And Amortization Property Plant And Equipment AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment	12048697000	USD
CY2013Q4	us-gaap	Accumulated Depreciation Depletion And Amortization Property Plant And Equipment AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment	12608305000	USD
CY2011Q4	us-gaap	Accumulated Other Comprehensive Income Loss Cumulative Changes In Net Gain Loss From Cash Flow Hedges Effect Net Of Tax AccumulatedOtherComprehensiveIncomeLossCumulativeChangesInNetGainLossFromCashFlowHedgesEffectNetOfTax	-45738000	USD
CY2012Q4	us-gaap	Accumulated Other Comprehensive Income Loss Cumulative Changes In Net Gain Loss From Cash Flow Hedges Effect Net Of Tax AccumulatedOtherComprehensiveIncomeLossCumulativeChangesInNetGainLossFromCashFlowHedgesEffectNetOfTax	-61241000	USD
CY2013Q4	us-gaap	Accumulated Other Comprehensive Income Loss Cumulative Changes In Net Gain Loss From Cash Flow Hedges Effect Net Of Tax AccumulatedOtherComprehensiveIncomeLossCumulativeChangesInNetGainLossFromCashFlowHedgesEffectNetOfTax	-59753000	USD
CY2010Q4	us-gaap	Accumulated Other Comprehensive Income Loss Cumulative Changes In Net Gain Loss From Cash Flow Hedges Effect Net Of Tax AccumulatedOtherComprehensiveIncomeLossCumulativeChangesInNetGainLossFromCashFlowHedgesEffectNetOfTax	-8094000	USD
CY2012Q4	us-gaap	Accumulated Other Comprehensive Income Loss Net Of Tax AccumulatedOtherComprehensiveIncomeLossNetOfTax	-112653000	USD
CY2013Q4	us-gaap	Accumulated Other Comprehensive Income Loss Net Of Tax AccumulatedOtherComprehensiveIncomeLossNetOfTax	-106275000	USD
CY2013Q4	us-gaap	Additional Paid In Capital Common Stock AdditionalPaidInCapitalCommonStock	5619313000	USD
CY2012Q4	us-gaap	Additional Paid In Capital Common Stock AdditionalPaidInCapitalCommonStock	5353015000	USD
CY2012	us-gaap	Adjustments To Additional Paid In Capital Sharebased Compensation Requisite Service Period Recognition Value AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue	37439000	USD
CY2011	us-gaap	Adjustments To Additional Paid In Capital Sharebased Compensation Requisite Service Period Recognition Value AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue	43854000	USD
CY2013	us-gaap	Adjustments To Additional Paid In Capital Sharebased Compensation Requisite Service Period Recognition Value AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue	28627000	USD
CY2012	us-gaap	Allocated Share Based Compensation Expense AllocatedShareBasedCompensationExpense	26970000	USD
CY2013	us-gaap	Allocated Share Based Compensation Expense AllocatedShareBasedCompensationExpense	24613000	USD
CY2011	us-gaap	Allocated Share Based Compensation Expense AllocatedShareBasedCompensationExpense	45006000	USD
CY2012Q4	us-gaap	Allowance For Doubtful Accounts Receivable Current AllowanceForDoubtfulAccountsReceivableCurrent	51394000	USD
CY2013Q4	us-gaap	Allowance For Doubtful Accounts Receivable Current AllowanceForDoubtfulAccountsReceivableCurrent	53107000	USD
CY2012	us-gaap	Allowance For Funds Used During Construction Investing Activities AllowanceForFundsUsedDuringConstructionInvestingActivities	62840000	USD
CY2013	us-gaap	Allowance For Funds Used During Construction Investing Activities AllowanceForFundsUsedDuringConstructionInvestingActivities	87683000	USD
CY2011	us-gaap	Allowance For Funds Used During Construction Investing Activities AllowanceForFundsUsedDuringConstructionInvestingActivities	51223000	USD
CY2013	us-gaap	Amortization Of Regulatory Asset AmortizationOfRegulatoryAsset	6531000	USD
CY2011	us-gaap	Amortization Of Regulatory Asset AmortizationOfRegulatoryAsset	9816000	USD
CY2012	us-gaap	Amortization Of Regulatory Asset AmortizationOfRegulatoryAsset	7258000	USD
CY2013Q4	us-gaap	Asset Retirement Obligation AssetRetirementObligation	1815390000	USD
CY2012Q4	us-gaap	Asset Retirement Obligation AssetRetirementObligation	1719796000	USD
CY2011Q4	us-gaap	Asset Retirement Obligation AssetRetirementObligation	1651793000	USD
CY2013	us-gaap	Asset Retirement Obligation Accretion Expense AssetRetirementObligationAccretionExpense	89350000	USD
CY2012	us-gaap	Asset Retirement Obligation Accretion Expense AssetRetirementObligationAccretionExpense	83649000	USD
CY2013	us-gaap	Asset Retirement Obligation Liabilities Incurred AssetRetirementObligationLiabilitiesIncurred	575000	USD
CY2012	us-gaap	Asset Retirement Obligation Liabilities Incurred AssetRetirementObligationLiabilitiesIncurred	4890000	USD
CY2013	us-gaap	Asset Retirement Obligation Liabilities Settled AssetRetirementObligationLiabilitiesSettled	1059000	USD
CY2012	us-gaap	Asset Retirement Obligation Liabilities Settled AssetRetirementObligationLiabilitiesSettled	9372000	USD
CY2013	us-gaap	Asset Retirement Obligation Revision Of Estimate AssetRetirementObligationRevisionOfEstimate	6728000	USD
CY2012	us-gaap	Asset Retirement Obligation Revision Of Estimate AssetRetirementObligationRevisionOfEstimate	-11164000	USD
CY2013Q4	us-gaap	Asset Retirement Obligations Noncurrent AssetRetirementObligationsNoncurrent	1815390000	USD
CY2012Q4	us-gaap	Asset Retirement Obligations Noncurrent AssetRetirementObligationsNoncurrent	1719796000	USD
CY2013Q4	us-gaap	Assets Assets	33907490000	USD
CY2012Q4	us-gaap	Assets Assets	31140686000	USD
CY2013Q4	us-gaap	Assets Current AssetsCurrent	3218040000	USD
CY2012Q4	us-gaap	Assets Current AssetsCurrent	2625139000	USD
CY2013Q4	us-gaap	Assets Needed For Immediate Settlement Aggregate Fair Value AssetsNeededForImmediateSettlementAggregateFairValue	1400000	USD
CY2012Q4	us-gaap	Assets Needed For Immediate Settlement Aggregate Fair Value AssetsNeededForImmediateSettlementAggregateFairValue	4600000	USD
CY2013Q4	us-gaap	Available For Sale Securities Debt Maturities After Five Through Ten Years Fair Value AvailableForSaleSecuritiesDebtMaturitiesAfterFiveThroughTenYearsFairValue	109334000	USD
CY2013Q4	us-gaap	Available For Sale Securities Debt Maturities After One Through Five Years Fair Value AvailableForSaleSecuritiesDebtMaturitiesAfterOneThroughFiveYearsFairValue	45735000	USD
CY2013Q4	us-gaap	Available For Sale Securities Debt Maturities After Ten Years Fair Value AvailableForSaleSecuritiesDebtMaturitiesAfterTenYearsFairValue	199137000	USD
CY2013Q4	us-gaap	Available For Sale Securities Debt Maturities Single Maturity Date AvailableForSaleSecuritiesDebtMaturitiesSingleMaturityDate	358540000	USD
CY2013Q4	us-gaap	Available For Sale Securities Debt Maturities Within One Year Fair Value AvailableForSaleSecuritiesDebtMaturitiesWithinOneYearFairValue	4334000	USD
CY2012	us-gaap	Available For Sale Securities Gross Unrealized Gains AvailableForSaleSecuritiesGrossUnrealizedGains	135800000	USD
CY2013	us-gaap	Available For Sale Securities Gross Unrealized Gains AvailableForSaleSecuritiesGrossUnrealizedGains	240300000	USD
CY2013	us-gaap	Available For Sale Securities Gross Unrealized Loss AvailableForSaleSecuritiesGrossUnrealizedLoss	58500000	USD
CY2012	us-gaap	Available For Sale Securities Gross Unrealized Loss AvailableForSaleSecuritiesGrossUnrealizedLoss	46400000	USD
CY2013	us-gaap	Capital Expenditures Incurred But Not Yet Paid CapitalExpendituresIncurredButNotYetPaid	452453000	USD
CY2012	us-gaap	Capital Expenditures Incurred But Not Yet Paid CapitalExpendituresIncurredButNotYetPaid	289802000	USD
CY2011	us-gaap	Capital Expenditures Incurred But Not Yet Paid CapitalExpendituresIncurredButNotYetPaid	137558000	USD
CY2012Q4	us-gaap	Capital Leased Assets Gross CapitalLeasedAssetsGross	221200000	USD
CY2013Q4	us-gaap	Capital Leased Assets Gross CapitalLeasedAssetsGross	221200000	USD
CY2013Q4	us-gaap	Capital Leases Balance Sheet Assets By Major Class Net CapitalLeasesBalanceSheetAssetsByMajorClassNet	179400000	USD
CY2012Q4	us-gaap	Capital Leases Balance Sheet Assets By Major Class Net CapitalLeasesBalanceSheetAssetsByMajorClassNet	185700000	USD
CY2013Q4	us-gaap	Capital Leases Future Minimum Payments Due CapitalLeasesFutureMinimumPaymentsDue	371700000	USD
CY2013Q4	us-gaap	Capital Leases Future Minimum Payments Due Current CapitalLeasesFutureMinimumPaymentsDueCurrent	18000000	USD
CY2013Q4	us-gaap	Capital Leases Future Minimum Payments Due In Five Years CapitalLeasesFutureMinimumPaymentsDueInFiveYears	14700000	USD
CY2013Q4	us-gaap	Capital Leases Future Minimum Payments Due In Four Years CapitalLeasesFutureMinimumPaymentsDueInFourYears	15000000	USD
CY2013Q4	us-gaap	Capital Leases Future Minimum Payments Due In Three Years CapitalLeasesFutureMinimumPaymentsDueInThreeYears	17100000	USD
CY2013Q4	us-gaap	Capital Leases Future Minimum Payments Due In Two Years CapitalLeasesFutureMinimumPaymentsDueInTwoYears	17800000	USD
CY2013Q4	us-gaap	Capital Leases Future Minimum Payments Due Thereafter CapitalLeasesFutureMinimumPaymentsDueThereafter	289100000	USD
CY2013Q4	us-gaap	Capital Leases Future Minimum Payments Interest Included In Payments CapitalLeasesFutureMinimumPaymentsInterestIncludedInPayments	264300000	USD
CY2013Q4	us-gaap	Capital Leases Future Minimum Payments Present Value Of Net Minimum Payments CapitalLeasesFutureMinimumPaymentsPresentValueOfNetMinimumPayments	107400000	USD
CY2012	us-gaap	Capital Leases Income Statement Amortization Expense CapitalLeasesIncomeStatementAmortizationExpense	5700000	USD
CY2011	us-gaap	Capital Leases Income Statement Amortization Expense CapitalLeasesIncomeStatementAmortizationExpense	3200000	USD
CY2013	us-gaap	Capital Leases Income Statement Amortization Expense CapitalLeasesIncomeStatementAmortizationExpense	6300000	USD
CY2012Q4	us-gaap	Capital Leases Lessee Balance Sheet Assets By Major Class Accumulated Deprecation CapitalLeasesLesseeBalanceSheetAssetsByMajorClassAccumulatedDeprecation	35500000	USD
CY2013Q4	us-gaap	Capital Leases Lessee Balance Sheet Assets By Major Class Accumulated Deprecation CapitalLeasesLesseeBalanceSheetAssetsByMajorClassAccumulatedDeprecation	41800000	USD
CY2012Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	82323000	USD
CY2011Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	60684000	USD
CY2010Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	108437000	USD
CY2013Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	107144000	USD
CY2013	us-gaap	Cash And Cash Equivalents Period Increase Decrease CashAndCashEquivalentsPeriodIncreaseDecrease	24821000	USD
CY2012	us-gaap	Cash And Cash Equivalents Period Increase Decrease CashAndCashEquivalentsPeriodIncreaseDecrease	21639000	USD
CY2011	us-gaap	Cash And Cash Equivalents Period Increase Decrease CashAndCashEquivalentsPeriodIncreaseDecrease	-47753000	USD
CY2013Q4	us-gaap	Collateral Already Posted Aggregate Fair Value CollateralAlreadyPostedAggregateFairValue	0	USD
CY2012Q4	us-gaap	Collateral Already Posted Aggregate Fair Value CollateralAlreadyPostedAggregateFairValue	0	USD
CY2013Q4	us-gaap	Commitments And Contingencies CommitmentsAndContingencies		USD
CY2012Q4	us-gaap	Commitments And Contingencies CommitmentsAndContingencies		USD
CY2011	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	1.03
CY2012	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	1.07
CY2013	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	1.11
CY2013Q1	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	0.27
CY2013Q3	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	0.28
CY2013Q2	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	0.28
CY2013Q4	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	0.28
CY2012Q2	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	0.27
CY2012Q1	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	0.26
CY2012Q4	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	0.27
CY2012Q3	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	0.27
CY2012Q4	us-gaap	Common Stock Par Or Stated Value Per Share CommonStockParOrStatedValuePerShare	2.50
CY2013Q4	us-gaap	Common Stock Par Or Stated Value Per Share CommonStockParOrStatedValuePerShare	2.50
CY2012Q4	us-gaap	Common Stock Shares Authorized CommonStockSharesAuthorized	1000000000	shares
CY2013Q4	us-gaap	Common Stock Shares Authorized CommonStockSharesAuthorized	1000000000	shares
CY2013Q2	us-gaap	Common Stock Shares Outstanding CommonStockSharesOutstanding	497295719	shares
CY2012Q4	us-gaap	Common Stock Shares Outstanding CommonStockSharesOutstanding	487959516	shares
CY2013Q4	us-gaap	Common Stock Shares Outstanding CommonStockSharesOutstanding	497971508	shares
CY2013Q2	dei	Entity Public Float EntityPublicFloat	14093360676	USD
CY2012Q4	us-gaap	Common Stock Value CommonStockValue	1219899000	USD
CY2013Q4	us-gaap	Common Stock Value CommonStockValue	1244929000	USD
CY2013	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	954612000	USD
CY2011	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	800230000	USD
CY2012	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	886611000	USD
CY2013	us-gaap	Cost Of Domestic Regulated Electric CostOfDomesticRegulatedElectric	4018672000	USD
CY2011	us-gaap	Cost Of Domestic Regulated Electric CostOfDomesticRegulatedElectric	3991786000	USD
CY2012	us-gaap	Cost Of Domestic Regulated Electric CostOfDomesticRegulatedElectric	3623935000	USD
CY2012	us-gaap	Cost Of Domestic Regulated Gas Revenue CostOfDomesticRegulatedGasRevenue	880939000	USD
CY2011	us-gaap	Cost Of Domestic Regulated Gas Revenue CostOfDomesticRegulatedGasRevenue	1163890000	USD
CY2013	us-gaap	Cost Of Domestic Regulated Gas Revenue CostOfDomesticRegulatedGasRevenue	1082751000	USD
CY2011	us-gaap	Costs And Expenses CostsAndExpenses	8873168000	USD
CY2012	us-gaap	Costs And Expenses CostsAndExpenses	8305540000	USD
CY2013	us-gaap	Costs And Expenses CostsAndExpenses	9067367000	USD
CY2011	us-gaap	Current Federal Tax Expense Benefit CurrentFederalTaxExpenseBenefit	3399000	USD
CY2012	us-gaap	Current Federal Tax Expense Benefit CurrentFederalTaxExpenseBenefit	7876000	USD
CY2013	us-gaap	Current Federal Tax Expense Benefit CurrentFederalTaxExpenseBenefit	-46173000	USD
CY2011	us-gaap	Current State And Local Tax Expense Benefit CurrentStateAndLocalTaxExpenseBenefit	9971000	USD
CY2013	us-gaap	Current State And Local Tax Expense Benefit CurrentStateAndLocalTaxExpenseBenefit	7678000	USD
CY2012	us-gaap	Current State And Local Tax Expense Benefit CurrentStateAndLocalTaxExpenseBenefit	31478000	USD
CY2013Q4	us-gaap	Customer Advances For Construction CustomerAdvancesForConstruction	275555000	USD
CY2012Q4	us-gaap	Customer Advances For Construction CustomerAdvancesForConstruction	252888000	USD
CY2012	us-gaap	Debt Related Commitment Fees And Debt Issuance Costs DebtRelatedCommitmentFeesAndDebtIssuanceCosts	24087000	USD
CY2013	us-gaap	Debt Related Commitment Fees And Debt Issuance Costs DebtRelatedCommitmentFeesAndDebtIssuanceCosts	30135000	USD
CY2011	us-gaap	Debt Related Commitment Fees And Debt Issuance Costs DebtRelatedCommitmentFeesAndDebtIssuanceCosts	24019000	USD
CY2012Q4	us-gaap	Decommissioning Trust Assets Amount DecommissioningTrustAssetsAmount	1489542000	USD
CY2013Q4	us-gaap	Decommissioning Trust Assets Amount DecommissioningTrustAssetsAmount	1627026000	USD
CY2011	us-gaap	Deferred Federal Income Tax Expense Benefit DeferredFederalIncomeTaxExpenseBenefit	383931000	USD
CY2012	us-gaap	Deferred Federal Income Tax Expense Benefit DeferredFederalIncomeTaxExpenseBenefit	366409000	USD
CY2013	us-gaap	Deferred Federal Income Tax Expense Benefit DeferredFederalIncomeTaxExpenseBenefit	439085000	USD
CY2013Q4	us-gaap	Deferred Finance Costs Noncurrent Net DeferredFinanceCostsNoncurrentNet	83000000	USD
CY2012Q4	us-gaap	Deferred Finance Costs Noncurrent Net DeferredFinanceCostsNoncurrentNet	85000000	USD
CY2013Q4	xel	Other Assets Excluding Property Plant And Equipment OtherAssetsExcludingPropertyPlantAndEquipment	4567291000	USD
CY2012	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	508094000	USD
CY2011	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	466567000	USD
CY2013	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	515062000	USD
CY2011	us-gaap	Deferred State And Local Income Tax Expense Benefit DeferredStateAndLocalIncomeTaxExpenseBenefit	78770000	USD
CY2013	us-gaap	Deferred State And Local Income Tax Expense Benefit DeferredStateAndLocalIncomeTaxExpenseBenefit	80907000	USD
CY2012	us-gaap	Deferred State And Local Income Tax Expense Benefit DeferredStateAndLocalIncomeTaxExpenseBenefit	50741000	USD
CY2012Q4	us-gaap	Deferred Tax Assets Liabilities Net DeferredTaxAssetsLiabilitiesNet	-4401791000	USD
CY2013Q4	us-gaap	Deferred Tax Assets Liabilities Net DeferredTaxAssetsLiabilitiesNet	-4989844000	USD
CY2012Q4	us-gaap	Deferred Tax Assets Liabilities Net Current DeferredTaxAssetsLiabilitiesNetCurrent	32528000	USD
CY2013Q4	us-gaap	Deferred Tax Assets Liabilities Net Current DeferredTaxAssetsLiabilitiesNetCurrent	341202000	USD
CY2013Q4	us-gaap	Deferred Tax Assets Liabilities Net Noncurrent DeferredTaxAssetsLiabilitiesNetNoncurrent	-5331046000	USD
CY2012Q4	us-gaap	Deferred Tax Assets Liabilities Net Noncurrent DeferredTaxAssetsLiabilitiesNetNoncurrent	-4434909000	USD
CY2012Q4	us-gaap	Deferred Tax Assets Net DeferredTaxAssetsNet	979499000	USD
CY2013Q4	us-gaap	Deferred Tax Assets Net DeferredTaxAssetsNet	1148877000	USD
CY2013Q4	us-gaap	Deferred Tax Assets Operating Loss Carryforwards DeferredTaxAssetsOperatingLossCarryforwards	532774000	USD
CY2012Q4	us-gaap	Deferred Tax Assets Operating Loss Carryforwards DeferredTaxAssetsOperatingLossCarryforwards	430765000	USD
CY2013Q4	us-gaap	Deferred Tax Assets Other DeferredTaxAssetsOther	81202000	USD
CY2012Q4	us-gaap	Deferred Tax Assets Other DeferredTaxAssetsOther	95308000	USD
CY2013Q4	us-gaap	Deferred Tax Assets Valuation Allowance DeferredTaxAssetsValuationAllowance	3263000	USD
CY2012Q4	us-gaap	Deferred Tax Assets Valuation Allowance DeferredTaxAssetsValuationAllowance	3314000	USD
CY2013Q4	us-gaap	Deferred Tax Liabilities DeferredTaxLiabilities	6138721000	USD
CY2012Q4	us-gaap	Deferred Tax Liabilities DeferredTaxLiabilities	5381290000	USD
CY2013Q4	us-gaap	Deferred Tax Liabilities Other DeferredTaxLiabilitiesOther	254639000	USD
CY2012Q4	us-gaap	Deferred Tax Liabilities Other DeferredTaxLiabilitiesOther	220781000	USD
CY2013Q4	us-gaap	Deferred Tax Liabilities Property Plant And Equipment DeferredTaxLiabilitiesPropertyPlantAndEquipment	5562446000	USD
CY2012Q4	us-gaap	Deferred Tax Liabilities Property Plant And Equipment DeferredTaxLiabilitiesPropertyPlantAndEquipment	4867142000	USD
CY2012Q4	us-gaap	Deferred Tax Liabilities Regulatory Assets DeferredTaxLiabilitiesRegulatoryAssets	293367000	USD
CY2013Q4	us-gaap	Deferred Tax Liabilities Regulatory Assets DeferredTaxLiabilitiesRegulatoryAssets	321636000	USD
CY2011	us-gaap	Defined Contribution Plan Cost Recognized DefinedContributionPlanCostRecognized	27100000	USD
CY2013	us-gaap	Defined Contribution Plan Cost Recognized DefinedContributionPlanCostRecognized	30300000	USD
CY2012	us-gaap	Defined Contribution Plan Cost Recognized DefinedContributionPlanCostRecognized	28000000	USD
CY2012	us-gaap	Depreciation Amortization And Accretion Net DepreciationAmortizationAndAccretionNet	943702000	USD
CY2013	us-gaap	Depreciation Amortization And Accretion Net DepreciationAmortizationAndAccretionNet	1001843000	USD
CY2011	us-gaap	Depreciation Amortization And Accretion Net DepreciationAmortizationAndAccretionNet	908853000	USD
CY2013Q4	us-gaap	Derivative Instruments And Hedges DerivativeInstrumentsAndHedges	91707000	USD
CY2012Q4	us-gaap	Derivative Instruments And Hedges DerivativeInstrumentsAndHedges	69013000	USD
CY2012Q4	us-gaap	Derivative Instruments And Hedges Liabilities DerivativeInstrumentsAndHedgesLiabilities	32482000	USD
CY2013Q4	us-gaap	Derivative Instruments And Hedges Liabilities DerivativeInstrumentsAndHedgesLiabilities	23382000	USD
CY2012Q4	us-gaap	Derivative Instruments And Hedges Liabilities Noncurrent DerivativeInstrumentsAndHedgesLiabilitiesNoncurrent	242866000	USD
CY2013Q4	us-gaap	Derivative Instruments And Hedges Liabilities Noncurrent DerivativeInstrumentsAndHedgesLiabilitiesNoncurrent	209224000	USD
CY2012Q4	us-gaap	Derivative Instruments And Hedges Noncurrent DerivativeInstrumentsAndHedgesNoncurrent	126297000	USD
CY2013Q4	us-gaap	Derivative Instruments And Hedges Noncurrent DerivativeInstrumentsAndHedgesNoncurrent	84842000	USD
CY2012	us-gaap	Dividends Common Stock DividendsCommonStock	523969000	USD
CY2013	us-gaap	Dividends Common Stock DividendsCommonStock	554067000	USD
CY2011	us-gaap	Dividends Common Stock DividendsCommonStock	503525000	USD
CY2013Q4	us-gaap	Dividends Payable Current DividendsPayableCurrent	139432000	USD
CY2012Q4	us-gaap	Dividends Payable Current DividendsPayableCurrent	131748000	USD
CY2011	us-gaap	Dividends Preferred Stock Cash DividendsPreferredStockCash	3534000	USD
CY2013	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	1.91
CY2012	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	1.86
CY2011	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	1.72
CY2013Q3	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.73
CY2013Q2	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.40
CY2013Q1	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.48
CY2013Q4	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.30
CY2012Q1	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.38
CY2012Q3	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.82
CY2012Q2	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.38
CY2012Q4	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.29
CY2013	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	1.91
CY2011	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	1.72
CY2012	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	1.85
CY2013Q1	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.48
CY2013Q4	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.30
CY2013Q2	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.40
CY2013Q3	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.73
CY2012Q2	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.38
CY2012Q4	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.29
CY2012Q3	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.81
CY2012Q1	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.38
CY2011	us-gaap	Effective Income Tax Rate Continuing Operations EffectiveIncomeTaxRateContinuingOperations	0.358
CY2012	us-gaap	Effective Income Tax Rate Continuing Operations EffectiveIncomeTaxRateContinuingOperations	0.332
CY2013	us-gaap	Effective Income Tax Rate Continuing Operations EffectiveIncomeTaxRateContinuingOperations	0.338
CY2013	us-gaap	Effective Income Tax Rate Reconciliation At Federal Statutory Income Tax Rate EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate	0.350
CY2012	us-gaap	Effective Income Tax Rate Reconciliation At Federal Statutory Income Tax Rate EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate	0.350
CY2011	us-gaap	Effective Income Tax Rate Reconciliation At Federal Statutory Income Tax Rate EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate	0.350
CY2011	us-gaap	Effective Income Tax Rate Reconciliation Deductions Medicare Prescription Drug Benefit EffectiveIncomeTaxRateReconciliationDeductionsMedicarePrescriptionDrugBenefit	0.000
CY2013	us-gaap	Effective Income Tax Rate Reconciliation Deductions Medicare Prescription Drug Benefit EffectiveIncomeTaxRateReconciliationDeductionsMedicarePrescriptionDrugBenefit	0.000
CY2012	us-gaap	Effective Income Tax Rate Reconciliation Deductions Medicare Prescription Drug Benefit EffectiveIncomeTaxRateReconciliationDeductionsMedicarePrescriptionDrugBenefit	-0.012
CY2012	us-gaap	Effective Income Tax Rate Reconciliation Other Adjustments EffectiveIncomeTaxRateReconciliationOtherAdjustments	-0.003
CY2011	us-gaap	Effective Income Tax Rate Reconciliation Other Adjustments EffectiveIncomeTaxRateReconciliationOtherAdjustments	0.000
CY2013	us-gaap	Effective Income Tax Rate Reconciliation Other Adjustments EffectiveIncomeTaxRateReconciliationOtherAdjustments	-0.009
CY2011	us-gaap	Effective Income Tax Rate Reconciliation State And Local Income Taxes EffectiveIncomeTaxRateReconciliationStateAndLocalIncomeTaxes	0.043
CY2013	us-gaap	Effective Income Tax Rate Reconciliation State And Local Income Taxes EffectiveIncomeTaxRateReconciliationStateAndLocalIncomeTaxes	0.041
CY2012	us-gaap	Effective Income Tax Rate Reconciliation State And Local Income Taxes EffectiveIncomeTaxRateReconciliationStateAndLocalIncomeTaxes	0.040
CY2011	us-gaap	Effective Income Tax Rate Reconciliation Tax Credits EffectiveIncomeTaxRateReconciliationTaxCredits	-0.026
CY2012	us-gaap	Effective Income Tax Rate Reconciliation Tax Credits EffectiveIncomeTaxRateReconciliationTaxCredits	-0.022
CY2013	us-gaap	Effective Income Tax Rate Reconciliation Tax Credits EffectiveIncomeTaxRateReconciliationTaxCredits	-0.026
CY2013	us-gaap	Electric Domestic Regulated Revenue ElectricDomesticRegulatedRevenue	9034045000	USD
CY2012	us-gaap	Electric Domestic Regulated Revenue ElectricDomesticRegulatedRevenue	8517296000	USD
CY2011	us-gaap	Electric Domestic Regulated Revenue ElectricDomesticRegulatedRevenue	8766593000	USD
CY2011	us-gaap	Employee Service Share Based Compensation Allocation Of Recognized Period Costs Capitalized Amount EmployeeServiceShareBasedCompensationAllocationOfRecognizedPeriodCostsCapitalizedAmount	3857000	USD
CY2013	us-gaap	Employee Service Share Based Compensation Allocation Of Recognized Period Costs Capitalized Amount EmployeeServiceShareBasedCompensationAllocationOfRecognizedPeriodCostsCapitalizedAmount	1698000	USD
CY2012	us-gaap	Employee Service Share Based Compensation Allocation Of Recognized Period Costs Capitalized Amount EmployeeServiceShareBasedCompensationAllocationOfRecognizedPeriodCostsCapitalizedAmount	4270000	USD
CY2013Q4	us-gaap	Employee Service Share Based Compensation Nonvested Awards Total Compensation Cost Not Yet Recognized EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognized	22100000	USD
CY2012Q4	us-gaap	Employee Service Share Based Compensation Nonvested Awards Total Compensation Cost Not Yet Recognized EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognized	15300000	USD
CY2013	us-gaap	Employee Service Share Based Compensation Nonvested Awards Total Compensation Cost Not Yet Recognized Period For Recognition1 EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedPeriodForRecognition1	P1Y9M
CY2012	us-gaap	Employee Service Share Based Compensation Tax Benefit From Compensation Expense EmployeeServiceShareBasedCompensationTaxBenefitFromCompensationExpense	10513000	USD
CY2013	us-gaap	Employee Service Share Based Compensation Tax Benefit From Compensation Expense EmployeeServiceShareBasedCompensationTaxBenefitFromCompensationExpense	9571000	USD
CY2011	us-gaap	Employee Service Share Based Compensation Tax Benefit From Compensation Expense EmployeeServiceShareBasedCompensationTaxBenefitFromCompensationExpense	17559000	USD
CY2012	us-gaap	Equity Method Investment Dividends Or Distributions EquityMethodInvestmentDividendsOrDistributions	33470000	USD
CY2013	us-gaap	Equity Method Investment Dividends Or Distributions EquityMethodInvestmentDividendsOrDistributions	36416000	USD
CY2011	us-gaap	Equity Method Investment Dividends Or Distributions EquityMethodInvestmentDividendsOrDistributions	34034000	USD
CY2013Q4	us-gaap	Equity Method Investments EquityMethodInvestments	87100000	USD
CY2012Q4	us-gaap	Equity Method Investments EquityMethodInvestments	91200000	USD
CY2013Q4	us-gaap	Fair Value Hedges At Fair Value Net FairValueHedgesAtFairValueNet	0	USD
CY2012Q4	us-gaap	Fair Value Hedges At Fair Value Net FairValueHedgesAtFairValueNet	0	USD
CY2011Q4	us-gaap	Fair Value Hedges At Fair Value Net FairValueHedgesAtFairValueNet	0	USD
CY2013	us-gaap	Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Asset Purchases FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetPurchases	55827000	USD
CY2012	us-gaap	Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Asset Purchases FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetPurchases	63464000	USD
CY2011	us-gaap	Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Asset Purchases FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetPurchases	219177000	USD
CY2013	us-gaap	Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Asset Settlements FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetSettlements	18622000	USD
CY2012	us-gaap	Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Asset Settlements FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetSettlements	99891000	USD
CY2011	us-gaap	Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Asset Settlements FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetSettlements	193694000	USD
CY2013	us-gaap	Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Asset Transfers Out Of Level3 FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetTransfersOutOfLevel3	32276000	USD
CY2012	us-gaap	Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Asset Transfers Out Of Level3 FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetTransfersOutOfLevel3	0	USD
CY2011	us-gaap	Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Asset Transfers Out Of Level3 FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetTransfersOutOfLevel3	0	USD
CY2012Q4	us-gaap	Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Asset Value FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetValue	104600000	USD
CY2013Q4	us-gaap	Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Asset Value FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetValue	120064000	USD
CY2011Q4	us-gaap	Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Asset Value FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetValue	130763000	USD
CY2010Q4	us-gaap	Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Asset Value FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetValue	105763000	USD
CY2013	us-gaap	Gain Loss On Fair Value Hedges Recognized In Earnings GainLossOnFairValueHedgesRecognizedInEarnings	0	USD
CY2011	us-gaap	Gain Loss On Fair Value Hedges Recognized In Earnings GainLossOnFairValueHedgesRecognizedInEarnings	0	USD
CY2012	us-gaap	Gain Loss On Fair Value Hedges Recognized In Earnings GainLossOnFairValueHedgesRecognizedInEarnings	0	USD
CY2012	us-gaap	Gain Loss On Sale Of Property Plant Equipment GainLossOnSaleOfPropertyPlantEquipment	0	USD
CY2011	us-gaap	Gain Loss On Sale Of Property Plant Equipment GainLossOnSaleOfPropertyPlantEquipment	0	USD
CY2013	us-gaap	Gain Loss On Sale Of Property Plant Equipment GainLossOnSaleOfPropertyPlantEquipment	13661000	USD
CY2011	us-gaap	Gas Domestic Regulated Revenue GasDomesticRegulatedRevenue	1811926000	USD
CY2013	us-gaap	Gas Domestic Regulated Revenue GasDomesticRegulatedRevenue	1804679000	USD
CY2012	us-gaap	Gas Domestic Regulated Revenue GasDomesticRegulatedRevenue	1537374000	USD
CY2011	us-gaap	General Insurance Expense GeneralInsuranceExpense	4785000	USD
CY2013	us-gaap	General Insurance Expense GeneralInsuranceExpense	8292000	USD
CY2012	us-gaap	General Insurance Expense GeneralInsuranceExpense	7365000	USD
CY2013Q4	us-gaap	Guarantee Obligations Maximum Exposure GuaranteeObligationsMaximumExposure	19400000	USD
CY2013	us-gaap	Guarantees Indemnifications And Warranties Policies GuaranteesIndemnificationsAndWarrantiesPolicies	<div style="font-family:Times New Roman;font-size:10pt;"><div style="line-height:120%;text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;font-style:italic;font-weight:bold;">Guarantees —</font><font style="font-family:inherit;font-size:10pt;"> Xcel Energy recognizes, upon issuance or modification of a guarantee, a liability for the fair market value of the obligation that has been assumed in issuing the guarantee.  This liability includes consideration of specific triggering events and other conditions which may modify the ongoing obligation to perform under the guarantee.</font></div><div style="line-height:120%;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br clear="none"/></font></div><div style="line-height:120%;text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">The obligation recognized is reduced over the term of the guarantee as Xcel Energy is released from risk under the guarantee.  See Note 13 for specific details of issued guarantees.</font></div></div>
CY2013	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	1432210000	USD
CY2012	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	1355432000	USD
CY2011	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	1309488000	USD
CY2012	us-gaap	Income Loss From Equity Method Investments IncomeLossFromEquityMethodInvestments	29971000	USD
CY2011	us-gaap	Income Loss From Equity Method Investments IncomeLossFromEquityMethodInvestments	30527000	USD
CY2013	us-gaap	Income Loss From Equity Method Investments IncomeLossFromEquityMethodInvestments	30020000	USD
CY2013	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	483976000	USD
CY2011	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	468316000	USD
CY2012	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	450203000	USD
CY2013	us-gaap	Income Taxes Paid Net IncomeTaxesPaidNet	-17188000	USD
CY2011	us-gaap	Income Taxes Paid Net IncomeTaxesPaidNet	-55764000	USD
CY2012	us-gaap	Income Taxes Paid Net IncomeTaxesPaidNet	9570000	USD
CY2013	us-gaap	Increase Decrease In Accounts And Other Receivables IncreaseDecreaseInAccountsAndOtherReceivables	108911000	USD
CY2011	us-gaap	Increase Decrease In Accounts And Other Receivables IncreaseDecreaseInAccountsAndOtherReceivables	79701000	USD
CY2012	us-gaap	Increase Decrease In Accounts And Other Receivables IncreaseDecreaseInAccountsAndOtherReceivables	197236000	USD
CY2013	us-gaap	Increase Decrease In Accounts Payable IncreaseDecreaseInAccountsPayable	132441000	USD
CY2012	us-gaap	Increase Decrease In Accounts Payable IncreaseDecreaseInAccountsPayable	-100327000	USD
CY2011	us-gaap	Increase Decrease In Accounts Payable IncreaseDecreaseInAccountsPayable	13748000	USD
CY2013	us-gaap	Increase Decrease In Employee Related Liabilities IncreaseDecreaseInEmployeeRelatedLiabilities	-156369000	USD
CY2011	us-gaap	Increase Decrease In Employee Related Liabilities IncreaseDecreaseInEmployeeRelatedLiabilities	-150717000	USD
CY2012	us-gaap	Increase Decrease In Employee Related Liabilities IncreaseDecreaseInEmployeeRelatedLiabilities	-183922000	USD
CY2012	us-gaap	Increase Decrease In Inventories IncreaseDecreaseInInventories	-82658000	USD
CY2013	us-gaap	Increase Decrease In Inventories IncreaseDecreaseInInventories	43588000	USD
CY2011	us-gaap	Increase Decrease In Inventories IncreaseDecreaseInInventories	57432000	USD
CY2012	us-gaap	Increase Decrease In Other Current Assets IncreaseDecreaseInOtherCurrentAssets	30737000	USD
CY2013	us-gaap	Increase Decrease In Other Current Assets IncreaseDecreaseInOtherCurrentAssets	18071000	USD
CY2011	us-gaap	Increase Decrease In Other Current Assets IncreaseDecreaseInOtherCurrentAssets	-62660000	USD
CY2012	us-gaap	Increase Decrease In Other Current Liabilities IncreaseDecreaseInOtherCurrentLiabilities	42914000	USD
CY2011	us-gaap	Increase Decrease In Other Current Liabilities IncreaseDecreaseInOtherCurrentLiabilities	112353000	USD
CY2013	us-gaap	Increase Decrease In Other Current Liabilities IncreaseDecreaseInOtherCurrentLiabilities	126555000	USD
CY2012	us-gaap	Increase Decrease In Other Noncurrent Assets IncreaseDecreaseInOtherNoncurrentAssets	33151000	USD
CY2011	us-gaap	Increase Decrease In Other Noncurrent Assets IncreaseDecreaseInOtherNoncurrentAssets	-24069000	USD
CY2013	us-gaap	Increase Decrease In Other Noncurrent Assets IncreaseDecreaseInOtherNoncurrentAssets	9998000	USD
CY2012	us-gaap	Increase Decrease In Other Noncurrent Liabilities IncreaseDecreaseInOtherNoncurrentLiabilities	-3905000	USD
CY2013	us-gaap	Increase Decrease In Other Noncurrent Liabilities IncreaseDecreaseInOtherNoncurrentLiabilities	17925000	USD
CY2011	us-gaap	Increase Decrease In Other Noncurrent Liabilities IncreaseDecreaseInOtherNoncurrentLiabilities	-61584000	USD
CY2011	us-gaap	Increase Decrease In Regulatory Assets And Liabilities IncreaseDecreaseInRegulatoryAssetsAndLiabilities	-149282000	USD
CY2012	us-gaap	Increase Decrease In Regulatory Assets And Liabilities IncreaseDecreaseInRegulatoryAssetsAndLiabilities	-5866000	USD
CY2013	us-gaap	Increase Decrease In Regulatory Assets And Liabilities IncreaseDecreaseInRegulatoryAssetsAndLiabilities	-141325000	USD
CY2011	us-gaap	Increase Decrease In Restricted Cash IncreaseDecreaseInRestrictedCash	95287000	USD
CY2012	us-gaap	Increase Decrease In Restricted Cash IncreaseDecreaseInRestrictedCash	-95287000	USD
CY2013	us-gaap	Increase Decrease In Restricted Cash IncreaseDecreaseInRestrictedCash	0	USD
CY2011	us-gaap	Increase Decrease In Unbilled Receivables IncreaseDecreaseInUnbilledReceivables	-19951000	USD
CY2012	us-gaap	Increase Decrease In Unbilled Receivables IncreaseDecreaseInUnbilledReceivables	-25377000	USD
CY2013	us-gaap	Increase Decrease In Unbilled Receivables IncreaseDecreaseInUnbilledReceivables	23867000	USD
CY2011	us-gaap	Incremental Common Shares Attributable To Contingently Issuable Shares IncrementalCommonSharesAttributableToContingentlyIssuableShares	576000	shares
CY2013	us-gaap	Incremental Common Shares Attributable To Contingently Issuable Shares IncrementalCommonSharesAttributableToContingentlyIssuableShares	459000	shares
CY2012	us-gaap	Incremental Common Shares Attributable To Contingently Issuable Shares IncrementalCommonSharesAttributableToContingentlyIssuableShares	535000	shares
CY2013	us-gaap	Interest And Debt Expense InterestAndDebtExpense	536020000	USD
CY2012	us-gaap	Interest And Debt Expense InterestAndDebtExpense	566237000	USD
CY2011	us-gaap	Interest And Debt Expense InterestAndDebtExpense	563119000	USD
CY2013	us-gaap	Interest And Other Income InterestAndOtherIncome	8343000	USD
CY2011	us-gaap	Interest And Other Income InterestAndOtherIncome	10639000	USD
CY2012	us-gaap	Interest And Other Income InterestAndOtherIncome	10327000	USD
CY2012	us-gaap	Interest Expense InterestExpense	601552000	USD
CY2011	us-gaap	Interest Expense InterestExpense	591300000	USD
CY2013	us-gaap	Interest Expense InterestExpense	575199000	USD
CY2011	us-gaap	Interest Paid Net InterestPaidNet	531148000	USD
CY2012	us-gaap	Interest Paid Net InterestPaidNet	563517000	USD
CY2013	us-gaap	Interest Paid Net InterestPaidNet	514911000	USD
CY2012Q4	us-gaap	Interest Payable Current InterestPayableCurrent	162494000	USD
CY2013Q4	us-gaap	Interest Payable Current InterestPayableCurrent	159372000	USD
CY2013Q4	us-gaap	Inventory Net InventoryNet	576538000	USD
CY2012Q4	us-gaap	Inventory Net InventoryNet	535574000	USD
CY2012	us-gaap	Investment Tax Credit InvestmentTaxCredit	-6610000	USD
CY2013	us-gaap	Investment Tax Credit InvestmentTaxCredit	-5753000	USD
CY2011	us-gaap	Investment Tax Credit InvestmentTaxCredit	-6194000	USD
CY2013Q4	us-gaap	Investments And Other Noncurrent Assets InvestmentsAndOtherNoncurrentAssets	1755990000	USD
CY2012Q4	us-gaap	Investments And Other Noncurrent Assets InvestmentsAndOtherNoncurrentAssets	1617865000	USD
CY2012	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	2004756000	USD
CY2013Q4	us-gaap	Liabilities And Stockholders Equity LiabilitiesAndStockholdersEquity	33907490000	USD
CY2012Q4	us-gaap	Liabilities And Stockholders Equity LiabilitiesAndStockholdersEquity	31140686000	USD
CY2013Q4	us-gaap	Liabilities Current LiabilitiesCurrent	3654498000	USD
CY2012Q4	us-gaap	Liabilities Current LiabilitiesCurrent	2937073000	USD
CY2012Q4	us-gaap	Liabilities Other Than Longterm Debt Noncurrent LiabilitiesOtherThanLongtermDebtNoncurrent	9185631000	USD
CY2013Q4	us-gaap	Liabilities Other Than Longterm Debt Noncurrent LiabilitiesOtherThanLongtermDebtNoncurrent	9776288000	USD
CY2013Q4	us-gaap	Line Of Credit Facility Maximum Borrowing Capacity LineOfCreditFacilityMaximumBorrowingCapacity	2450000000	USD
CY2013Q4	us-gaap	Line Of Credit Facility Remaining Borrowing Capacity LineOfCreditFacilityRemainingBorrowingCapacity	1643200000	USD
CY2012Q4	us-gaap	Long Term Debt And Capital Lease Obligations LongTermDebtAndCapitalLeaseObligations	10143905000	USD
CY2013Q4	us-gaap	Long Term Debt And Capital Lease Obligations LongTermDebtAndCapitalLeaseObligations	10910754000	USD
CY2013Q4	us-gaap	Long Term Debt And Capital Lease Obligations Current LongTermDebtAndCapitalLeaseObligationsCurrent	280763000	USD
CY2012Q4	us-gaap	Long Term Debt And Capital Lease Obligations Current LongTermDebtAndCapitalLeaseObligationsCurrent	258155000	USD
CY2013Q4	us-gaap	Long Term Debt Maturities Repayments Of Principal In Next Twelve Months LongTermDebtMaturitiesRepaymentsOfPrincipalInNextTwelveMonths	281000000	USD
CY2013Q4	us-gaap	Long Term Debt Maturities Repayments Of Principal In Year Five LongTermDebtMaturitiesRepaymentsOfPrincipalInYearFive	1206000000	USD
CY2013Q4	us-gaap	Long Term Debt Maturities Repayments Of Principal In Year Four LongTermDebtMaturitiesRepaymentsOfPrincipalInYearFour	388000000	USD
CY2013Q4	us-gaap	Long Term Debt Maturities Repayments Of Principal In Year Three LongTermDebtMaturitiesRepaymentsOfPrincipalInYearThree	656000000	USD
CY2013Q4	us-gaap	Long Term Debt Maturities Repayments Of Principal In Year Two LongTermDebtMaturitiesRepaymentsOfPrincipalInYearTwo	256000000	USD
CY2012	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	349825000	USD
CY2013	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	654169000	USD
CY2011	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	-205474000	USD
CY2013	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-3213384000	USD
CY2011	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-2247801000	USD
CY2012	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-2332942000	USD
CY2011	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	2405522000	USD
CY2013	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	2584036000	USD
CY2012	us-gaap	Net Income Loss NetIncomeLoss	905229000	USD
CY2011	us-gaap	Net Income Loss NetIncomeLoss	841172000	USD
CY2013	us-gaap	Net Income Loss NetIncomeLoss	948234000	USD
CY2013Q1	us-gaap	Net Income Loss NetIncomeLoss	236570000	USD
CY2013Q3	us-gaap	Net Income Loss NetIncomeLoss	364752000	USD
CY2013Q4	us-gaap	Net Income Loss NetIncomeLoss	150055000	USD
CY2013Q2	us-gaap	Net Income Loss NetIncomeLoss	196857000	USD
CY2012Q4	us-gaap	Net Income Loss NetIncomeLoss	140170000	USD
CY2012Q1	us-gaap	Net Income Loss NetIncomeLoss	183893000	USD
CY2012Q3	us-gaap	Net Income Loss NetIncomeLoss	398106000	USD
CY2012Q2	us-gaap	Net Income Loss NetIncomeLoss	183060000	USD
CY2013	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	948234000	USD
CY2011	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	834378000	USD
CY2012	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	905229000	USD
CY2011	us-gaap	Net Income Loss Available To Common Stockholders Diluted NetIncomeLossAvailableToCommonStockholdersDiluted	834378000	USD
CY2013	us-gaap	Net Income Loss Available To Common Stockholders Diluted NetIncomeLossAvailableToCommonStockholdersDiluted	948234000	USD
CY2012	us-gaap	Net Income Loss Available To Common Stockholders Diluted NetIncomeLossAvailableToCommonStockholdersDiluted	905229000	USD
CY2012	us-gaap	Operating Income Loss OperatingIncomeLoss	1822683000	USD
CY2013	us-gaap	Operating Income Loss OperatingIncomeLoss	1847555000	USD
CY2011	us-gaap	Operating Income Loss OperatingIncomeLoss	1781602000	USD
CY2013Q4	us-gaap	Operating Income Loss OperatingIncomeLoss	325582000	USD
CY2013Q2	us-gaap	Operating Income Loss OperatingIncomeLoss	402236000	USD
CY2013Q3	us-gaap	Operating Income Loss OperatingIncomeLoss	665113000	USD
CY2013Q1	us-gaap	Operating Income Loss OperatingIncomeLoss	454624000	USD
CY2012Q2	us-gaap	Operating Income Loss OperatingIncomeLoss	405690000	USD
CY2012Q4	us-gaap	Operating Income Loss OperatingIncomeLoss	316397000	USD
CY2012Q1	us-gaap	Operating Income Loss OperatingIncomeLoss	380162000	USD
CY2012Q3	us-gaap	Operating Income Loss OperatingIncomeLoss	720434000	USD
CY2013Q4	us-gaap	Operating Leases Future Minimum Payments Due Current OperatingLeasesFutureMinimumPaymentsDueCurrent	240700000	USD
CY2013Q4	us-gaap	Operating Leases Future Minimum Payments Due In Five Years OperatingLeasesFutureMinimumPaymentsDueInFiveYears	210500000	USD
CY2013Q4	us-gaap	Operating Leases Future Minimum Payments Due In Four Years OperatingLeasesFutureMinimumPaymentsDueInFourYears	209900000	USD
CY2013Q4	us-gaap	Operating Leases Future Minimum Payments Due In Three Years OperatingLeasesFutureMinimumPaymentsDueInThreeYears	219400000	USD
CY2013Q4	us-gaap	Operating Leases Future Minimum Payments Due In Two Years OperatingLeasesFutureMinimumPaymentsDueInTwoYears	232800000	USD
CY2013Q4	us-gaap	Operating Leases Future Minimum Payments Due Thereafter OperatingLeasesFutureMinimumPaymentsDueThereafter	1915500000	USD
CY2011	us-gaap	Other Comprehensive Income Defined Benefit Plans Net Unamortized Gain Loss Arising During Period Tax OtherComprehensiveIncomeDefinedBenefitPlansNetUnamortizedGainLossArisingDuringPeriodTax	-4442000	USD
CY2013	us-gaap	Other Comprehensive Income Loss Derivatives Qualifying As Hedges Net Of Tax OtherComprehensiveIncomeLossDerivativesQualifyingAsHedgesNetOfTax	1488000	USD
CY2012	us-gaap	Other Comprehensive Income Loss Derivatives Qualifying As Hedges Net Of Tax OtherComprehensiveIncomeLossDerivativesQualifyingAsHedgesNetOfTax	-15503000	USD
CY2013	us-gaap	Other Comprehensive Income Loss Amortization Adjustment From Aoci Pension And Other Postretirement Benefit Plans For Net Prior Service Cost Credit Net Of Tax OtherComprehensiveIncomeLossAmortizationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansForNetPriorServiceCostCreditNetOfTax	3306000	USD
CY2012	us-gaap	Other Comprehensive Income Loss Amortization Adjustment From Aoci Pension And Other Postretirement Benefit Plans For Net Prior Service Cost Credit Net Of Tax OtherComprehensiveIncomeLossAmortizationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansForNetPriorServiceCostCreditNetOfTax	3694000	USD
CY2011	us-gaap	Other Comprehensive Income Loss Amortization Adjustment From Aoci Pension And Other Postretirement Benefit Plans For Net Prior Service Cost Credit Net Of Tax OtherComprehensiveIncomeLossAmortizationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansForNetPriorServiceCostCreditNetOfTax	3162000	USD
CY2013	us-gaap	Other Comprehensive Income Loss Amortization Adjustment From Aoci Pension And Other Postretirement Benefit Plans For Net Prior Service Cost Credit Tax OtherComprehensiveIncomeLossAmortizationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansForNetPriorServiceCostCreditTax	4151000	USD
CY2011	us-gaap	Other Comprehensive Income Loss Amortization Adjustment From Aoci Pension And Other Postretirement Benefit Plans For Net Prior Service Cost Credit Tax OtherComprehensiveIncomeLossAmortizationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansForNetPriorServiceCostCreditTax	2195000	USD
CY2012	us-gaap	Other Comprehensive Income Loss Amortization Adjustment From Aoci Pension And Other Postretirement Benefit Plans For Net Prior Service Cost Credit Tax OtherComprehensiveIncomeLossAmortizationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansForNetPriorServiceCostCreditTax	2567000	USD
CY2013	us-gaap	Other Comprehensive Income Loss Before Reclassifications Net Of Tax OtherComprehensiveIncomeLossBeforeReclassificationsNetOfTax	1596000	USD
CY2011	us-gaap	Other Comprehensive Income Loss Derivatives Qualifying As Hedges Net Of Tax OtherComprehensiveIncomeLossDerivativesQualifyingAsHedgesNetOfTax	-37644000	USD
CY2012Q4	us-gaap	Other Assets Noncurrent OtherAssetsNoncurrent	200008000	USD
CY2013Q4	us-gaap	Other Assets Noncurrent OtherAssetsNoncurrent	217241000	USD
CY2013	us-gaap	Other Comprehensive Income Defined Benefit Plans Net Unamortized Gain Loss Arising During Period Net Of Tax OtherComprehensiveIncomeDefinedBenefitPlansNetUnamortizedGainLossArisingDuringPeriodNetOfTax	1408000	USD
CY2011	us-gaap	Other Comprehensive Income Defined Benefit Plans Net Unamortized Gain Loss Arising During Period Net Of Tax OtherComprehensiveIncomeDefinedBenefitPlansNetUnamortizedGainLossArisingDuringPeriodNetOfTax	-6367000	USD
CY2012	us-gaap	Other Comprehensive Income Defined Benefit Plans Net Unamortized Gain Loss Arising During Period Net Of Tax OtherComprehensiveIncomeDefinedBenefitPlansNetUnamortizedGainLossArisingDuringPeriodNetOfTax	-7005000	USD
CY2013	us-gaap	Other Comprehensive Income Defined Benefit Plans Net Unamortized Gain Loss Arising During Period Tax OtherComprehensiveIncomeDefinedBenefitPlansNetUnamortizedGainLossArisingDuringPeriodTax	1746000	USD
CY2012	us-gaap	Other Comprehensive Income Defined Benefit Plans Net Unamortized Gain Loss Arising During Period Tax OtherComprehensiveIncomeDefinedBenefitPlansNetUnamortizedGainLossArisingDuringPeriodTax	-4898000	USD
CY2011	us-gaap	Other Comprehensive Income Loss Derivatives Qualifying As Hedges Tax OtherComprehensiveIncomeLossDerivativesQualifyingAsHedgesTax	-24488000	USD
CY2013	us-gaap	Other Comprehensive Income Loss Derivatives Qualifying As Hedges Tax OtherComprehensiveIncomeLossDerivativesQualifyingAsHedgesTax	2558000	USD
CY2012	us-gaap	Other Comprehensive Income Loss Derivatives Qualifying As Hedges Tax OtherComprehensiveIncomeLossDerivativesQualifyingAsHedgesTax	-9906000	USD
CY2013	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	6378000	USD
CY2011	us-gaap	Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent	-40942000	USD
CY2012	us-gaap	Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent	-18618000	USD
CY2013	us-gaap	Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent	6378000	USD
CY2011	us-gaap	Other Comprehensive Income Loss Pension And Other Postretirement Benefit Plans Adjustment Net Of Tax OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentNetOfTax	3205000	USD
CY2012	us-gaap	Other Comprehensive Income Loss Pension And Other Postretirement Benefit Plans Adjustment Net Of Tax OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentNetOfTax	3311000	USD
CY2013	us-gaap	Other Comprehensive Income Loss Pension And Other Postretirement Benefit Plans Adjustment Net Of Tax OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentNetOfTax	-4714000	USD
CY2012	us-gaap	Other Comprehensive Income Loss Pension And Other Postretirement Benefit Plans Tax OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansTax	-2331000	USD
CY2013	us-gaap	Other Comprehensive Income Loss Pension And Other Postretirement Benefit Plans Tax OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansTax	5897000	USD
CY2011	us-gaap	Other Comprehensive Income Loss Pension And Other Postretirement Benefit Plans Tax OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansTax	-2247000	USD
CY2013	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci On Derivatives Net Of Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIOnDerivativesNetOfTax	-1476000	USD
CY2012	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci On Derivatives Net Of Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIOnDerivativesNetOfTax	-3697000	USD
CY2011	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci On Derivatives Net Of Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIOnDerivativesNetOfTax	-648000	USD
CY2012	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci On Derivatives Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIOnDerivativesTax	-2687000	USD
CY2013	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci On Derivatives Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIOnDerivativesTax	-2541000	USD
CY2011	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci On Derivatives Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIOnDerivativesTax	-598000	USD
CY2011	us-gaap	Other Comprehensive Income Loss Tax OtherComprehensiveIncomeLossTax	26798000	USD
CY2012	us-gaap	Other Comprehensive Income Loss Tax OtherComprehensiveIncomeLossTax	12102000	USD
CY2013	us-gaap	Other Comprehensive Income Loss Tax OtherComprehensiveIncomeLossTax	-8572000	USD
CY2012	us-gaap	Other Comprehensive Income Unrealized Gain Loss On Derivatives Arising During Period Net Of Tax OtherComprehensiveIncomeUnrealizedGainLossOnDerivativesArisingDuringPeriodNetOfTax	-19200000	USD
CY2013	us-gaap	Other Comprehensive Income Unrealized Gain Loss On Derivatives Arising During Period Net Of Tax OtherComprehensiveIncomeUnrealizedGainLossOnDerivativesArisingDuringPeriodNetOfTax	12000	USD
CY2011	us-gaap	Other Comprehensive Income Unrealized Gain Loss On Derivatives Arising During Period Net Of Tax OtherComprehensiveIncomeUnrealizedGainLossOnDerivativesArisingDuringPeriodNetOfTax	-38292000	USD
CY2011	us-gaap	Other Comprehensive Income Unrealized Gain Loss On Derivatives Arising During Period Tax OtherComprehensiveIncomeUnrealizedGainLossOnDerivativesArisingDuringPeriodTax	-25086000	USD
CY2012	us-gaap	Other Comprehensive Income Unrealized Gain Loss On Derivatives Arising During Period Tax OtherComprehensiveIncomeUnrealizedGainLossOnDerivativesArisingDuringPeriodTax	-12593000	USD
CY2013	us-gaap	Other Comprehensive Income Unrealized Gain Loss On Derivatives Arising During Period Tax OtherComprehensiveIncomeUnrealizedGainLossOnDerivativesArisingDuringPeriodTax	17000	USD
CY2011	us-gaap	Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Net Of Tax OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodNetOfTax	-93000	USD
CY2013	us-gaap	Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Net Of Tax OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodNetOfTax	176000	USD
CY2012	us-gaap	Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Net Of Tax OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodNetOfTax	196000	USD
CY2011	us-gaap	Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Tax OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodTax	-63000	USD
CY2013	us-gaap	Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Tax OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodTax	117000	USD
CY2012	us-gaap	Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Tax OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodTax	135000	USD
CY2012	us-gaap	Other Cost Of Operating Revenue OtherCostOfOperatingRevenue	29067000	USD
CY2013	us-gaap	Other Cost Of Operating Revenue OtherCostOfOperatingRevenue	33323000	USD
CY2011	us-gaap	Other Cost Of Operating Revenue OtherCostOfOperatingRevenue	30391000	USD
CY2013Q4	us-gaap	Other Liabilities Current OtherLiabilitiesCurrent	377776000	USD
CY2012Q4	us-gaap	Other Liabilities Current OtherLiabilitiesCurrent	287802000	USD
CY2012Q4	us-gaap	Other Liabilities Noncurrent OtherLiabilitiesNoncurrent	229207000	USD
CY2013Q4	us-gaap	Other Liabilities Noncurrent OtherLiabilitiesNoncurrent	237217000	USD
CY2012Q4	us-gaap	Other Long Term Investments OtherLongTermInvestments	37100000	USD
CY2013Q4	us-gaap	Other Long Term Investments OtherLongTermInvestments	41900000	USD
CY2011	us-gaap	Other Nonoperating Expense OtherNonoperatingExpense	321000	USD
CY2012	us-gaap	Other Nonoperating Expense OtherNonoperatingExpense	270000	USD
CY2013	us-gaap	Other Nonoperating Expense OtherNonoperatingExpense	104000	USD
CY2012	us-gaap	Other Nonoperating Income OtherNonoperatingIncome	3483000	USD
CY2013	us-gaap	Other Nonoperating Income OtherNonoperatingIncome	3025000	USD
CY2011	us-gaap	Other Nonoperating Income OtherNonoperatingIncome	3722000	USD
CY2011	us-gaap	Other Nonoperating Income Expense OtherNonoperatingIncomeExpense	9255000	USD
CY2013	us-gaap	Other Nonoperating Income Expense OtherNonoperatingIncomeExpense	2972000	USD
CY2012	us-gaap	Other Nonoperating Income Expense OtherNonoperatingIncomeExpense	6175000	USD
CY2012	us-gaap	Other Sales Revenue Net OtherSalesRevenueNet	73553000	USD
CY2011	us-gaap	Other Sales Revenue Net OtherSalesRevenueNet	76251000	USD
CY2013	us-gaap	Other Sales Revenue Net OtherSalesRevenueNet	76198000	USD
CY2011	us-gaap	Payments For Proceeds From Other Investing Activities PaymentsForProceedsFromOtherInvestingActivities	6152000	USD
CY2012	us-gaap	Payments For Proceeds From Other Investing Activities PaymentsForProceedsFromOtherInvestingActivities	2766000	USD
CY2013	us-gaap	Payments For Proceeds From Other Investing Activities PaymentsForProceedsFromOtherInvestingActivities	4766000	USD
CY2011	us-gaap	Payments For Repurchase Of Common Stock PaymentsForRepurchaseOfCommonStock	0	USD
CY2012	us-gaap	Payments For Repurchase Of Common Stock PaymentsForRepurchaseOfCommonStock	18529000	USD
CY2013	us-gaap	Payments For Repurchase Of Common Stock PaymentsForRepurchaseOfCommonStock	0	USD
CY2013	us-gaap	Payments For Repurchase Of Preferred Stock And Preference Stock PaymentsForRepurchaseOfPreferredStockAndPreferenceStock	0	USD
CY2011	us-gaap	Payments For Repurchase Of Preferred Stock And Preference Stock PaymentsForRepurchaseOfPreferredStockAndPreferenceStock	104980000	USD
CY2012	us-gaap	Payments For Repurchase Of Preferred Stock And Preference Stock PaymentsForRepurchaseOfPreferredStockAndPreferenceStock	0	USD
CY2012	us-gaap	Payments Of Dividends PaymentsOfDividends	486757000	USD
CY2013	us-gaap	Payments Of Dividends PaymentsOfDividends	514042000	USD
CY2011	us-gaap	Payments Of Dividends PaymentsOfDividends	474760000	USD
CY2011	us-gaap	Payments To Acquire Equity Method Investments PaymentsToAcquireEquityMethodInvestments	2446000	USD
CY2012	us-gaap	Payments To Acquire Equity Method Investments PaymentsToAcquireEquityMethodInvestments	980000	USD
CY2013	us-gaap	Payments To Acquire Equity Method Investments PaymentsToAcquireEquityMethodInvestments	7504000	USD
CY2011	us-gaap	Payments To Acquire Productive Assets PaymentsToAcquireProductiveAssets	2205567000	USD
CY2012	us-gaap	Payments To Acquire Productive Assets PaymentsToAcquireProductiveAssets	2570209000	USD
CY2013	us-gaap	Payments To Acquire Productive Assets PaymentsToAcquireProductiveAssets	3395325000	USD
CY2011	us-gaap	Payments To Invest In Decommissioning Fund PaymentsToInvestInDecommissioningFund	2098642000	USD
CY2013	us-gaap	Payments To Invest In Decommissioning Fund PaymentsToInvestInDecommissioningFund	1481881000	USD
CY2012	us-gaap	Payments To Invest In Decommissioning Fund PaymentsToInvestInDecommissioningFund	1102025000	USD
CY2012Q4	us-gaap	Pension And Other Postretirement Defined Benefit Plans Liabilities Noncurrent PensionAndOtherPostretirementDefinedBenefitPlansLiabilitiesNoncurrent	1163265000	USD
CY2013Q4	us-gaap	Pension And Other Postretirement Defined Benefit Plans Liabilities Noncurrent PensionAndOtherPostretirementDefinedBenefitPlansLiabilitiesNoncurrent	769222000	USD
CY2012	us-gaap	Preferred Stock Dividends Income Statement Impact PreferredStockDividendsIncomeStatementImpact	0	USD
CY2011	us-gaap	Preferred Stock Dividends Income Statement Impact PreferredStockDividendsIncomeStatementImpact	3534000	USD
CY2013	us-gaap	Preferred Stock Dividends Income Statement Impact PreferredStockDividendsIncomeStatementImpact	0	USD
CY2012	us-gaap	Preferred Stock Redemption Premium PreferredStockRedemptionPremium	0	USD
CY2013	us-gaap	Preferred Stock Redemption Premium PreferredStockRedemptionPremium	0	USD
CY2011	us-gaap	Preferred Stock Redemption Premium PreferredStockRedemptionPremium	3260000	USD
CY2013Q4	us-gaap	Prepaid Expense And Other Assets Current PrepaidExpenseAndOtherAssetsCurrent	252258000	USD
CY2012Q4	us-gaap	Prepaid Expense And Other Assets Current PrepaidExpenseAndOtherAssetsCurrent	171315000	USD
CY2013Q4	us-gaap	Price Risk Cash Flow Hedge Unrealized Gain Loss To Be Reclassified During Next12 Months PriceRiskCashFlowHedgeUnrealizedGainLossToBeReclassifiedDuringNext12Months	100000	USD
CY2013	us-gaap	Prior Period Reclassification Adjustment Description PriorPeriodReclassificationAdjustmentDescription	<div style="font-family:Times New Roman;font-size:10pt;"><div style="line-height:120%;text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;font-style:italic;font-weight:bold;">Reclassifications —</font><font style="font-family:inherit;font-size:10pt;"> Certain previously reported amounts have been reclassified to conform to the current year presentation.</font></div></div>
CY2012	us-gaap	Proceeds From Decommissioning Fund ProceedsFromDecommissioningFund	1087076000	USD
CY2013	us-gaap	Proceeds From Decommissioning Fund ProceedsFromDecommissioningFund	1461291000	USD
CY2011	us-gaap	Proceeds From Decommissioning Fund ProceedsFromDecommissioningFund	2098642000	USD
CY2012	us-gaap	Proceeds From Insurance Settlement Investing Activities ProceedsFromInsuranceSettlementInvestingActivities	97835000	USD
CY2013	us-gaap	Proceeds From Insurance Settlement Investing Activities ProceedsFromInsuranceSettlementInvestingActivities	90000000	USD
CY2011	us-gaap	Proceeds From Insurance Settlement Investing Activities ProceedsFromInsuranceSettlementInvestingActivities	0	USD
CY2012	us-gaap	Proceeds From Issuance Of Common Stock ProceedsFromIssuanceOfCommonStock	8050000	USD
CY2011	us-gaap	Proceeds From Issuance Of Common Stock ProceedsFromIssuanceOfCommonStock	38691000	USD
CY2013	us-gaap	Proceeds From Issuance Of Common Stock ProceedsFromIssuanceOfCommonStock	231767000	USD
CY2013	us-gaap	Proceeds From Issuance Of Long Term Debt ProceedsFromIssuanceOfLongTermDebt	1431895000	USD
CY2012	us-gaap	Proceeds From Issuance Of Long Term Debt ProceedsFromIssuanceOfLongTermDebt	1790131000	USD
CY2011	us-gaap	Proceeds From Issuance Of Long Term Debt ProceedsFromIssuanceOfLongTermDebt	688598000	USD
CY2011	us-gaap	Proceeds From Repayments Of Short Term Debt ProceedsFromRepaymentsOfShortTermDebt	-247400000	USD
CY2013	us-gaap	Proceeds From Repayments Of Short Term Debt ProceedsFromRepaymentsOfShortTermDebt	157000000	USD
CY2012	us-gaap	Proceeds From Repayments Of Short Term Debt ProceedsFromRepaymentsOfShortTermDebt	383000000	USD
CY2012	us-gaap	Proceeds From Sale Of Property Plant And Equipment ProceedsFromSaleOfPropertyPlantAndEquipment	0	USD
CY2013	us-gaap	Proceeds From Sale Of Property Plant And Equipment ProceedsFromSaleOfPropertyPlantAndEquipment	37118000	USD
CY2011	us-gaap	Proceeds From Sale Of Property Plant And Equipment ProceedsFromSaleOfPropertyPlantAndEquipment	0	USD
CY2012Q4	us-gaap	Property Plant And Equipment Gross PropertyPlantAndEquipmentGross	35511843000	USD
CY2013Q4	us-gaap	Property Plant And Equipment Gross PropertyPlantAndEquipmentGross	38386353000	USD
CY2012Q4	us-gaap	Property Plant And Equipment Net PropertyPlantAndEquipmentNet	23809348000	USD
CY2013Q4	us-gaap	Property Plant And Equipment Net PropertyPlantAndEquipmentNet	26122159000	USD
CY2011	us-gaap	Provision For Doubtful Accounts ProvisionForDoubtfulAccounts	44521000	USD
CY2013	us-gaap	Provision For Doubtful Accounts ProvisionForDoubtfulAccounts	37627000	USD
CY2012	us-gaap	Provision For Doubtful Accounts ProvisionForDoubtfulAccounts	33808000	USD
CY2011	us-gaap	Public Utilities Allowance For Funds Used During Construction Capitalized Cost Of Equity PublicUtilitiesAllowanceForFundsUsedDuringConstructionCapitalizedCostOfEquity	51223000	USD
CY2013	us-gaap	Public Utilities Allowance For Funds Used During Construction Capitalized Cost Of Equity PublicUtilitiesAllowanceForFundsUsedDuringConstructionCapitalizedCostOfEquity	87683000	USD
CY2012	us-gaap	Public Utilities Allowance For Funds Used During Construction Capitalized Cost Of Equity PublicUtilitiesAllowanceForFundsUsedDuringConstructionCapitalizedCostOfEquity	62840000	USD
CY2012	us-gaap	Public Utilities Allowance For Funds Used During Construction Capitalized Interest PublicUtilitiesAllowanceForFundsUsedDuringConstructionCapitalizedInterest	-35315000	USD
CY2011	us-gaap	Public Utilities Allowance For Funds Used During Construction Capitalized Interest PublicUtilitiesAllowanceForFundsUsedDuringConstructionCapitalizedInterest	-28181000	USD
CY2013	us-gaap	Public Utilities Allowance For Funds Used During Construction Capitalized Interest PublicUtilitiesAllowanceForFundsUsedDuringConstructionCapitalizedInterest	-39179000	USD
CY2013Q4	us-gaap	Public Utilities Inventory PublicUtilitiesInventory	576538000	USD
CY2012Q4	us-gaap	Public Utilities Inventory PublicUtilitiesInventory	535574000	USD
CY2013	us-gaap	Reclassification From Accumulated Other Comprehensive Income Current Period Net Of Tax ReclassificationFromAccumulatedOtherComprehensiveIncomeCurrentPeriodNetOfTax	-4782000	USD
CY2012Q4	us-gaap	Regulatory Assets Current RegulatoryAssetsCurrent	352977000	USD
CY2013Q4	us-gaap	Regulatory Assets Current RegulatoryAssetsCurrent	417801000	USD
CY2012Q4	us-gaap	Regulatory Assets Noncurrent RegulatoryAssetsNoncurrent	2762029000	USD
CY2013Q4	us-gaap	Regulatory Assets Noncurrent RegulatoryAssetsNoncurrent	2509218000	USD
CY2013Q4	us-gaap	Regulatory Liability Current RegulatoryLiabilityCurrent	274769000	USD
CY2012Q4	us-gaap	Regulatory Liability Current RegulatoryLiabilityCurrent	168858000	USD
CY2012Q4	us-gaap	Regulatory Liability Noncurrent RegulatoryLiabilityNoncurrent	1059939000	USD
CY2013Q4	us-gaap	Regulatory Liability Noncurrent RegulatoryLiabilityNoncurrent	1059395000	USD
CY2013Q4	us-gaap	Remaining Amounts Of Regulatory Assets For Which No Return On Investment During Recovery Period Is Provided RemainingAmountsOfRegulatoryAssetsForWhichNoReturnOnInvestmentDuringRecoveryPeriodIsProvided	306000000	USD
CY2012Q4	us-gaap	Remaining Amounts Of Regulatory Assets For Which No Return On Investment During Recovery Period Is Provided RemainingAmountsOfRegulatoryAssetsForWhichNoReturnOnInvestmentDuringRecoveryPeriodIsProvided	275000000	USD
CY2013	us-gaap	Repayments Of Long Term Debt RepaymentsOfLongTermDebt	652451000	USD
CY2012	us-gaap	Repayments Of Long Term Debt RepaymentsOfLongTermDebt	1302763000	USD
CY2011	us-gaap	Repayments Of Long Term Debt RepaymentsOfLongTermDebt	105623000	USD
CY2012Q4	us-gaap	Retained Earnings Accumulated Deficit RetainedEarningsAccumulatedDeficit	2413816000	USD
CY2013Q4	us-gaap	Retained Earnings Accumulated Deficit RetainedEarningsAccumulatedDeficit	2807983000	USD
CY2011	us-gaap	Revenues Revenues	10654770000	USD
CY2012	us-gaap	Revenues Revenues	10128223000	USD
CY2013	us-gaap	Revenues Revenues	10914922000	USD
CY2013Q1	us-gaap	Revenues Revenues	2782849000	USD
CY2013Q2	us-gaap	Revenues Revenues	2578913000	USD
CY2013Q3	us-gaap	Revenues Revenues	2822338000	USD
CY2013Q4	us-gaap	Revenues Revenues	2730822000	USD
CY2012Q3	us-gaap	Revenues Revenues	2724341000	USD
CY2012Q1	us-gaap	Revenues Revenues	2578079000	USD
CY2012Q4	us-gaap	Revenues Revenues	2551135000	USD
CY2012Q2	us-gaap	Revenues Revenues	2274668000	USD
CY2013	us-gaap	Share Based Compensation ShareBasedCompensation	24613000	USD
CY2012	us-gaap	Share Based Compensation ShareBasedCompensation	26970000	USD
CY2011	us-gaap	Share Based Compensation ShareBasedCompensation	45006000	USD
CY2013Q4	us-gaap	Short Term Borrowings ShortTermBorrowings	759000000	USD
CY2012Q4	us-gaap	Short Term Borrowings ShortTermBorrowings	602000000	USD
CY2011Q4	us-gaap	Short Term Borrowings ShortTermBorrowings	219000000	USD
CY2012Q4	us-gaap	Short Term Debt Weighted Average Interest Rate ShortTermDebtWeightedAverageInterestRate	0.0036
CY2011Q4	us-gaap	Short Term Debt Weighted Average Interest Rate ShortTermDebtWeightedAverageInterestRate	0.0040
CY2013Q4	us-gaap	Short Term Debt Weighted Average Interest Rate ShortTermDebtWeightedAverageInterestRate	0.0025
CY2011	us-gaap	Shortterm Debt Average Outstanding Amount ShorttermDebtAverageOutstandingAmount	430000000	USD
CY2012	us-gaap	Shortterm Debt Average Outstanding Amount ShorttermDebtAverageOutstandingAmount	403000000	USD
CY2013	us-gaap	Shortterm Debt Average Outstanding Amount ShorttermDebtAverageOutstandingAmount	481000000	USD
CY2013Q4	us-gaap	Shortterm Debt Average Outstanding Amount ShorttermDebtAverageOutstandingAmount	515000000	USD
CY2013	us-gaap	Shortterm Debt Maximum Amount Outstanding During Period ShorttermDebtMaximumAmountOutstandingDuringPeriod	1160000000	USD
CY2012	us-gaap	Shortterm Debt Maximum Amount Outstanding During Period ShorttermDebtMaximumAmountOutstandingDuringPeriod	634000000	USD
CY2011	us-gaap	Shortterm Debt Maximum Amount Outstanding During Period ShorttermDebtMaximumAmountOutstandingDuringPeriod	824000000	USD
CY2013Q4	us-gaap	Shortterm Debt Maximum Amount Outstanding During Period ShorttermDebtMaximumAmountOutstandingDuringPeriod	759000000	USD
CY2013Q4	us-gaap	Significant Change In Unrecognized Tax Benefits Is Reasonably Possible Estimated Range Of Change Upper Bound SignificantChangeInUnrecognizedTaxBenefitsIsReasonablyPossibleEstimatedRangeOfChangeUpperBound	20000000	USD
CY2013	us-gaap	Stock Issued1 StockIssued1	56950000	USD
CY2012	us-gaap	Stock Issued1 StockIssued1	67723000	USD
CY2011	us-gaap	Stock Issued1 StockIssued1	71715000	USD
CY2013	us-gaap	Stock Issued During Period Value New Issues StockIssuedDuringPeriodValueNewIssues	262701000	USD
CY2011	us-gaap	Stock Issued During Period Value New Issues StockIssuedDuringPeriodValueNewIssues	64914000	USD
CY2012	us-gaap	Stock Issued During Period Value New Issues StockIssuedDuringPeriodValueNewIssues	33634000	USD
CY2012Q1	us-gaap	Stock Repurchase Program Number Of Shares Authorized To Be Repurchased StockRepurchaseProgramNumberOfSharesAuthorizedToBeRepurchased	700000	shares
CY2012Q1	us-gaap	Stock Repurchased During Period Shares StockRepurchasedDuringPeriodShares	700000	shares
CY2013Q4	us-gaap	Unrecognized Tax Benefits Income Tax Penalties Accrued UnrecognizedTaxBenefitsIncomeTaxPenaltiesAccrued	0	USD
CY2011Q4	us-gaap	Unrecognized Tax Benefits Income Tax Penalties Accrued UnrecognizedTaxBenefitsIncomeTaxPenaltiesAccrued	0	USD
CY2013	dei	Entity Registrant Name EntityRegistrantName	XCEL ENERGY INC
CY2012	us-gaap	Stock Repurchased During Period Value StockRepurchasedDuringPeriodValue	18529000	USD
CY2012Q4	us-gaap	Stockholders Equity StockholdersEquity	8874077000	USD
CY2013Q4	us-gaap	Stockholders Equity StockholdersEquity	9565950000	USD
CY2011Q4	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	8482198000	USD
CY2010Q4	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	8083519000	USD
CY2013Q4	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	9565950000	USD
CY2012Q4	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	8874077000	USD
CY2013	us-gaap	Tax Adjustments Settlements And Unusual Provisions TaxAdjustmentsSettlementsAndUnusualProvisions	-12000000	USD
CY2012	us-gaap	Tax Adjustments Settlements And Unusual Provisions TaxAdjustmentsSettlementsAndUnusualProvisions	-15000000	USD
CY2011	us-gaap	Taxes Excluding Income And Excise Taxes TaxesExcludingIncomeAndExciseTaxes	374815000	USD
CY2013	us-gaap	Taxes Excluding Income And Excise Taxes TaxesExcludingIncomeAndExciseTaxes	420500000	USD
CY2012	us-gaap	Taxes Excluding Income And Excise Taxes TaxesExcludingIncomeAndExciseTaxes	408924000	USD
CY2012Q4	us-gaap	Taxes Payable Current TaxesPayableCurrent	334441000	USD
CY2013Q4	us-gaap	Taxes Payable Current TaxesPayableCurrent	378766000	USD
CY2011Q4	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	34700000	USD
CY2013Q4	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	41200000	USD
CY2012Q4	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	34500000	USD
CY2010Q4	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	40500000	USD
CY2011	us-gaap	Unrecognized Tax Benefits Decreases Resulting From Current Period Tax Positions UnrecognizedTaxBenefitsDecreasesResultingFromCurrentPeriodTaxPositions	1900000	USD
CY2012	us-gaap	Unrecognized Tax Benefits Decreases Resulting From Current Period Tax Positions UnrecognizedTaxBenefitsDecreasesResultingFromCurrentPeriodTaxPositions	5700000	USD
CY2013	us-gaap	Unrecognized Tax Benefits Decreases Resulting From Current Period Tax Positions UnrecognizedTaxBenefitsDecreasesResultingFromCurrentPeriodTaxPositions	400000	USD
CY2011	us-gaap	Unrecognized Tax Benefits Decreases Resulting From Prior Period Tax Positions UnrecognizedTaxBenefitsDecreasesResultingFromPriorPeriodTaxPositions	2400000	USD
CY2012	us-gaap	Unrecognized Tax Benefits Decreases Resulting From Prior Period Tax Positions UnrecognizedTaxBenefitsDecreasesResultingFromPriorPeriodTaxPositions	9300000	USD
CY2013	us-gaap	Unrecognized Tax Benefits Decreases Resulting From Prior Period Tax Positions UnrecognizedTaxBenefitsDecreasesResultingFromPriorPeriodTaxPositions	4800000	USD
CY2013	us-gaap	Unrecognized Tax Benefits Decreases Resulting From Settlements With Taxing Authorities UnrecognizedTaxBenefitsDecreasesResultingFromSettlementsWithTaxingAuthorities	24800000	USD
CY2011	us-gaap	Unrecognized Tax Benefits Decreases Resulting From Settlements With Taxing Authorities UnrecognizedTaxBenefitsDecreasesResultingFromSettlementsWithTaxingAuthorities	27300000	USD
CY2012	us-gaap	Unrecognized Tax Benefits Decreases Resulting From Settlements With Taxing Authorities UnrecognizedTaxBenefitsDecreasesResultingFromSettlementsWithTaxingAuthorities	0	USD
CY2012Q4	us-gaap	Unrecognized Tax Benefits Income Tax Penalties Accrued UnrecognizedTaxBenefitsIncomeTaxPenaltiesAccrued	0	USD
CY2012	us-gaap	Unrecognized Tax Benefits Increases Resulting From Current Period Tax Positions UnrecognizedTaxBenefitsIncreasesResultingFromCurrentPeriodTaxPositions	5200000	USD
CY2013	us-gaap	Unrecognized Tax Benefits Increases Resulting From Current Period Tax Positions UnrecognizedTaxBenefitsIncreasesResultingFromCurrentPeriodTaxPositions	15100000	USD
CY2011	us-gaap	Unrecognized Tax Benefits Increases Resulting From Current Period Tax Positions UnrecognizedTaxBenefitsIncreasesResultingFromCurrentPeriodTaxPositions	11900000	USD
CY2013	us-gaap	Unrecognized Tax Benefits Increases Resulting From Prior Period Tax Positions UnrecognizedTaxBenefitsIncreasesResultingFromPriorPeriodTaxPositions	21600000	USD
CY2012	us-gaap	Unrecognized Tax Benefits Increases Resulting From Prior Period Tax Positions UnrecognizedTaxBenefitsIncreasesResultingFromPriorPeriodTaxPositions	9600000	USD
CY2013	dei	Document Fiscal Period Focus DocumentFiscalPeriodFocus	FY
CY2013	dei	Document Fiscal Year Focus DocumentFiscalYearFocus	2013
CY2013	dei	Document Period End Date DocumentPeriodEndDate	2013-12-31
CY2013	dei	Document Type DocumentType	10-K
CY2013	dei	Entity Central Index Key EntityCentralIndexKey	0000072903
CY2014Q1	dei	Entity Common Stock Shares Outstanding EntityCommonStockSharesOutstanding	498288164	shares
CY2013	dei	Entity Current Reporting Status EntityCurrentReportingStatus	Yes
CY2013	dei	Entity Filer Category EntityFilerCategory	Large Accelerated Filer
CY2011	us-gaap	Unrecognized Tax Benefits Increases Resulting From Prior Period Tax Positions UnrecognizedTaxBenefitsIncreasesResultingFromPriorPeriodTaxPositions	14000000	USD
CY2011	us-gaap	Unrecognized Tax Benefits Reductions Resulting From Lapse Of Applicable Statute Of Limitations UnrecognizedTaxBenefitsReductionsResultingFromLapseOfApplicableStatuteOfLimitations	100000	USD
CY2013	us-gaap	Unrecognized Tax Benefits Reductions Resulting From Lapse Of Applicable Statute Of Limitations UnrecognizedTaxBenefitsReductionsResultingFromLapseOfApplicableStatuteOfLimitations	0	USD
CY2012	us-gaap	Unrecognized Tax Benefits Reductions Resulting From Lapse Of Applicable Statute Of Limitations UnrecognizedTaxBenefitsReductionsResultingFromLapseOfApplicableStatuteOfLimitations	0	USD
CY2012Q4	us-gaap	Unrecognized Tax Benefits That Would Impact Effective Tax Rate UnrecognizedTaxBenefitsThatWouldImpactEffectiveTaxRate	4700000	USD
CY2013Q4	us-gaap	Unrecognized Tax Benefits That Would Impact Effective Tax Rate UnrecognizedTaxBenefitsThatWouldImpactEffectiveTaxRate	12900000	USD
CY2013	us-gaap	Use Of Estimates UseOfEstimates	<div style="font-family:Times New Roman;font-size:10pt;"><div style="line-height:120%;text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;font-style:italic;font-weight:bold;">Use of Estimates —</font><font style="font-family:inherit;font-size:10pt;"> In recording transactions and balances resulting from business operations, Xcel Energy uses estimates based on the best information available.  Estimates are used for such items as plant depreciable lives, AROs, regulatory assets and liabilities, tax provisions, uncollectible amounts, environmental costs, unbilled revenues, jurisdictional fuel and energy cost allocations and actuarially determined benefit costs.  The recorded estimates are revised when better information becomes available or when actual amounts can be determined.  Those revisions can affect operating results.</font></div></div>
CY2013	us-gaap	Utilities Operating Expense Depreciation And Amortization UtilitiesOperatingExpenseDepreciationAndAmortization	977863000	USD
CY2011	us-gaap	Utilities Operating Expense Depreciation And Amortization UtilitiesOperatingExpenseDepreciationAndAmortization	890619000	USD
CY2012	us-gaap	Utilities Operating Expense Depreciation And Amortization UtilitiesOperatingExpenseDepreciationAndAmortization	926053000	USD
CY2012	us-gaap	Utilities Operating Expense Maintenance Operations And Other Costs And Expenses UtilitiesOperatingExpenseMaintenanceOperationsAndOtherCostsAndExpenses	2176095000	USD
CY2011	us-gaap	Utilities Operating Expense Maintenance Operations And Other Costs And Expenses UtilitiesOperatingExpenseMaintenanceOperationsAndOtherCostsAndExpenses	2140289000	USD
CY2013	us-gaap	Utilities Operating Expense Maintenance Operations And Other Costs And Expenses UtilitiesOperatingExpenseMaintenanceOperationsAndOtherCostsAndExpenses	2273532000	USD
CY2012	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	488434000	shares
CY2013	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	496532000	shares
CY2011	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	485615000	shares
CY2012	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	487899000	shares
CY2011	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	485039000	shares
CY2013	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	496073000	shares
CY2013	dei	Amendment Flag AmendmentFlag	false
CY2013	dei	Current Fiscal Year End Date CurrentFiscalYearEndDate	--12-31
CY2013Q4	xel	Accrued Unbilled Revenues AccruedUnbilledRevenues	687230000	USD
CY2012Q4	xel	Accrued Unbilled Revenues AccruedUnbilledRevenues	663363000	USD
CY2013	dei	Entity Voluntary Filers EntityVoluntaryFilers	No
CY2013	dei	Entity Well Known Seasoned Issuer EntityWellKnownSeasonedIssuer	Yes
CY2012	xel	Deferred Change In Unrecognized Tax Expense Benefit DeferredChangeInUnrecognizedTaxExpenseBenefit	2013000	USD
CY2013	xel	Deferred Income Tax Expense Benefit Other DeferredIncomeTaxExpenseBenefitOther	1000	USD
CY2012	xel	Adjustments To Additional Paid In Capital Purchase Of Common Stock For Settlement Of Equity Awards AdjustmentsToAdditionalPaidInCapitalPurchaseOfCommonStockForSettlementOfEquityAwards	23307000	USD
CY2011	xel	Amortization And Adjustments To Deferred Income Taxes On Income Tax Regulatory Assets And Liabilities AmortizationAndAdjustmentsToDeferredIncomeTaxesOnIncomeTaxRegulatoryAssetsAndLiabilities	-7108000	USD
CY2012	xel	Amortization And Adjustments To Deferred Income Taxes On Income Tax Regulatory Assets And Liabilities AmortizationAndAdjustmentsToDeferredIncomeTaxesOnIncomeTaxRegulatoryAssetsAndLiabilities	-63862000	USD
CY2013	xel	Amortization And Adjustments To Deferred Income Taxes On Income Tax Regulatory Assets And Liabilities AmortizationAndAdjustmentsToDeferredIncomeTaxesOnIncomeTaxRegulatoryAssetsAndLiabilities	-64420000	USD
CY2012Q4	xel	Approved Annual Accrual For Decommissioning Costs For Next Year ApprovedAnnualAccrualForDecommissioningCostsForNextYear	14200000	USD
CY2013Q4	xel	Assets Held As Collateral For Guarantor Obligations AssetsHeldAsCollateralForGuarantorObligations	0	USD
CY2012Q4	xel	Assets Held As Collateral For Guarantor Obligations AssetsHeldAsCollateralForGuarantorObligations	0	USD
CY2013	xel	Assumed After Tax Rate Of Return Used To Determine Funding For External Decommissioning Trust Fund High End Of Range AssumedAfterTaxRateOfReturnUsedToDetermineFundingForExternalDecommissioningTrustFundHighEndOfRange	0.0553
CY2013	xel	Assumed After Tax Rate Of Return Used To Determine Funding For External Decommissioning Trust Fund Low End Of Range AssumedAfterTaxRateOfReturnUsedToDetermineFundingForExternalDecommissioningTrustFundLowEndOfRange	0.0457
CY2013	xel	Assumed Annual Escalation Rate During Independent Fuel Storage Installation And Site Restoration Portion Of Decommissioning AssumedAnnualEscalationRateDuringIndependentFuelStorageInstallationAndSiteRestorationPortionOfDecommissioning	0.0263
CY2013	xel	Assumed Annual Escalation Rate During Operations And Radiological Portion Of Decommissioning AssumedAnnualEscalationRateDuringOperationsAndRadiologicalPortionOfDecommissioning	0.0363
CY2012Q1	xel	Average Purchase Price Per Share Of Common Stock Repurchased AveragePurchasePricePerShareOfCommonStockRepurchased	26.42
CY2013Q4	xel	Balance In Internally Funded Decommissioning Account BalanceInInternallyFundedDecommissioningAccount	0	USD
CY2013Q4	xel	Bonus Depreciation Rate BonusDepreciationRate	0.5
CY2013Q4	xel	Collateral Already Posted Adequate Assurance Clauses Aggregate Fair Value CollateralAlreadyPostedAdequateAssuranceClausesAggregateFairValue	0	USD
CY2012Q4	xel	Collateral Already Posted Adequate Assurance Clauses Aggregate Fair Value CollateralAlreadyPostedAdequateAssuranceClausesAggregateFairValue	0	USD
CY2013Q4	xel	Commercial Paper Available For Issuance CommercialPaperAvailableForIssuance	2450000000	USD
CY2011Q4	xel	Commercial Paper Available For Issuance CommercialPaperAvailableForIssuance	2450000000	USD
CY2012Q4	xel	Commercial Paper Available For Issuance CommercialPaperAvailableForIssuance	2450000000	USD
CY2012	xel	Conservation And Demand Side Management Program Expenses ConservationAndDemandSideManagementProgramExpenses	260527000	USD
CY2011	xel	Conservation And Demand Side Management Program Expenses ConservationAndDemandSideManagementProgramExpenses	281378000	USD
CY2013	xel	Conservation And Demand Side Management Program Expenses ConservationAndDemandSideManagementProgramExpenses	260726000	USD
CY2013Q4	xel	Credit Facilities Drawn CreditFacilitiesDrawn	806800000	USD
CY2013Q4	xel	Cumulative Fuel Disposal Assessments Paid To Doe CumulativeFuelDisposalAssessmentsPaidToDoe	444800000	USD
CY2012	xel	Current Change In Unrecognized Tax Expense Benefit CurrentChangeInUnrecognizedTaxExpenseBenefit	-1704000	USD
CY2013	xel	Current Change In Unrecognized Tax Expense Benefit CurrentChangeInUnrecognizedTaxExpenseBenefit	13162000	USD
CY2011	xel	Current Change In Unrecognized Tax Expense Benefit CurrentChangeInUnrecognizedTaxExpenseBenefit	-8266000	USD
CY2013Q4	xel	Current Top Tax Rate For Dividends CurrentTopTaxRateForDividends	0.15
CY2011	xel	Doe Fuel Disposal Assessments Included In Fuel Expense DOEFuelDisposalAssessmentsIncludedInFuelExpense	11000000	USD
CY2013	xel	Doe Fuel Disposal Assessments Included In Fuel Expense DOEFuelDisposalAssessmentsIncludedInFuelExpense	10000000	USD
CY2012	xel	Doe Fuel Disposal Assessments Included In Fuel Expense DOEFuelDisposalAssessmentsIncludedInFuelExpense	12000000	USD
CY2013	xel	Deferred Change In Unrecognized Tax Expense Benefit DeferredChangeInUnrecognizedTaxExpenseBenefit	-4930000	USD
CY2011	xel	Deferred Change In Unrecognized Tax Expense Benefit DeferredChangeInUnrecognizedTaxExpenseBenefit	6705000	USD
CY2011	xel	Deferred Income Tax Expense Benefit Other DeferredIncomeTaxExpenseBenefitOther	-16000	USD
CY2012	xel	Deferred Income Tax Expense Benefit Other DeferredIncomeTaxExpenseBenefitOther	-6000	USD
CY2012	xel	Deferred Investment Tax Credits DeferredInvestmentTaxCredits	6610000	USD
CY2012Q4	xel	Deferred Tax Assets Environmental Remediation DeferredTaxAssetsEnvironmentalRemediation	44549000	USD
CY2013	xel	Deferred Investment Tax Credits DeferredInvestmentTaxCredits	5753000	USD
CY2011	xel	Deferred Investment Tax Credits DeferredInvestmentTaxCredits	6194000	USD
CY2013Q4	xel	Deferred Tax Assets Deferred Investment Tax Credits DeferredTaxAssetsDeferredInvestmentTaxCredits	34231000	USD
CY2013Q4	xel	Percent Of Employees Receiving Benefits Who Are Represented By Local Labor Unions Under Collective Bargaining Agreements PercentOfEmployeesReceivingBenefitsWhoAreRepresentedByLocalLaborUnionsUnderCollectiveBargainingAgreements	0.48
CY2013Q4	xel	Percentage Of Total Obligation For Decommissioning Expected To Be Funded By External Funds PercentageOfTotalObligationForDecommissioningExpectedToBeFundedByExternalFunds	1.00
CY2012Q4	xel	Deferred Tax Assets Deferred Investment Tax Credits DeferredTaxAssetsDeferredInvestmentTaxCredits	35767000	USD
CY2013Q4	xel	Deferred Tax Assets Environmental Remediation DeferredTaxAssetsEnvironmentalRemediation	42886000	USD
CY2013Q4	xel	Deferred Tax Assets Rate Refund DeferredTaxAssetsRateRefund	49804000	USD
CY2012Q4	xel	Deferred Tax Assets Rate Refund DeferredTaxAssetsRateRefund	8109000	USD
CY2013Q4	xel	Deferred Tax Assets Regulatory Liabilities DeferredTaxAssetsRegulatoryLiabilities	40947000	USD
CY2012Q4	xel	Deferred Tax Assets Regulatory Liabilities DeferredTaxAssetsRegulatoryLiabilities	34471000	USD
CY2013Q4	xel	Deferred Tax Assets Tax Credit Carryforward DeferredTaxAssetsTaxCreditCarryforward	311388000	USD
CY2012Q4	xel	Deferred Tax Assets Tax Credit Carryforward DeferredTaxAssetsTaxCreditCarryforward	273776000	USD
CY2012Q4	xel	Deferred Tax Assets Unbilled Revenue Fuel Costs DeferredTaxAssetsUnbilledRevenueFuelCosts	60068000	USD
CY2013Q4	xel	Deferred Tax Assets Unbilled Revenue Fuel Costs DeferredTaxAssetsUnbilledRevenueFuelCosts	58908000	USD
CY2012	xel	Deferred Tax Expense Benefit Excluding Selected Items DeferredTaxExpenseBenefitExcludingSelectedItems	559860000	USD
CY2013	xel	Deferred Tax Expense Benefit Excluding Selected Items DeferredTaxExpenseBenefitExcludingSelectedItems	588053000	USD
CY2011	xel	Deferred Tax Expense Benefit Excluding Selected Items DeferredTaxExpenseBenefitExcludingSelectedItems	446893000	USD
CY2012	xel	Depreciation Expense Expressed As Percentage Of Average Depreciable Property DepreciationExpenseExpressedAsPercentageOfAverageDepreciableProperty	0.028
CY2013	xel	Depreciation Expense Expressed As Percentage Of Average Depreciable Property DepreciationExpenseExpressedAsPercentageOfAverageDepreciableProperty	0.029
CY2011	xel	Depreciation Expense Expressed As Percentage Of Average Depreciable Property DepreciationExpenseExpressedAsPercentageOfAverageDepreciableProperty	0.029
CY2012Q4	xel	Derivative Gross Liability Position Aggregate Fair Value DerivativeGrossLiabilityPositionAggregateFairValue	4600000	USD
CY2013Q4	xel	Derivative Gross Liability Position Aggregate Fair Value DerivativeGrossLiabilityPositionAggregateFairValue	1400000	USD
CY2012Q4	xel	Discounted Decommissioning Cost Obligation DiscountedDecommissioningCostObligation	2337956000	USD
CY2013Q4	xel	Discounted Decommissioning Cost Obligation DiscountedDecommissioningCostObligation	2366238000	USD
CY2013Q4	xel	Discounted Decommissioning Obligation Compared To Assets Currently Held In Trust DiscountedDecommissioningObligationComparedToAssetsCurrentlyHeldInTrust	-739212000	USD
CY2012Q4	xel	Discounted Decommissioning Obligation Compared To Assets Currently Held In Trust DiscountedDecommissioningObligationComparedToAssetsCurrentlyHeldInTrust	-848414000	USD
CY2013Q4	xel	Effect Of Discounting Obligation Using Risk Free Interest Rate EffectOfDiscountingObligationUsingRiskFreeInterestRate	6215050000	USD
CY2012Q4	xel	Effect Of Discounting Obligation Using Risk Free Interest Rate EffectOfDiscountingObligationUsingRiskFreeInterestRate	6243332000	USD
CY2013Q4	xel	Effect Of Escalating Costs To Current Year Dollars EffectOfEscalatingCostsToCurrentYearDollars	189924000	USD
CY2012Q4	xel	Effect Of Escalating Costs To Current Year Dollars EffectOfEscalatingCostsToCurrentYearDollars	93327000	USD
CY2013Q4	xel	Effect Of Escalating Costs To Payment Date EffectOfEscalatingCostsToPaymentDate	5697285000	USD
CY2012Q4	xel	Effect Of Escalating Costs To Payment Date EffectOfEscalatingCostsToPaymentDate	5793882000	USD
CY2011	xel	Effective Income Tax Rate Reconciliation Change In Unrecognized Tax Benefits EffectiveIncomeTaxRateReconciliationChangeInUnrecognizedTaxBenefits	-0.001
CY2012	xel	Effective Income Tax Rate Reconciliation Change In Unrecognized Tax Benefits EffectiveIncomeTaxRateReconciliationChangeInUnrecognizedTaxBenefits	0.000
CY2013	xel	Effective Income Tax Rate Reconciliation Change In Unrecognized Tax Benefits EffectiveIncomeTaxRateReconciliationChangeInUnrecognizedTaxBenefits	0.006
CY2012	xel	Effective Income Tax Rate Reconciliation Regulatory Differences Utility Plant Items EffectiveIncomeTaxRateReconciliationRegulatoryDifferencesUtilityPlantItems	-0.010
CY2011	xel	Effective Income Tax Rate Reconciliation Regulatory Differences Utility Plant Items EffectiveIncomeTaxRateReconciliationRegulatoryDifferencesUtilityPlantItems	-0.008
CY2013	xel	Effective Income Tax Rate Reconciliation Regulatory Differences Utility Plant Items EffectiveIncomeTaxRateReconciliationRegulatoryDifferencesUtilityPlantItems	-0.016
CY2011	xel	Effective Income Tax Reconciliation Net Operating Loss Carryback EffectiveIncomeTaxReconciliationNetOperatingLossCarryback	0.000
CY2012	xel	Effective Income Tax Reconciliation Net Operating Loss Carryback EffectiveIncomeTaxReconciliationNetOperatingLossCarryback	-0.011
CY2013	xel	Effective Income Tax Reconciliation Net Operating Loss Carryback EffectiveIncomeTaxReconciliationNetOperatingLossCarryback	-0.008
CY2012Q4	xel	Estimated Decommissioning Cost Obligation From Most Recently Approved Study EstimatedDecommissioningCostObligationFromMostRecentlyApprovedStudy	2694079000	USD
CY2013Q4	xel	Estimated Decommissioning Cost Obligation From Most Recently Approved Study EstimatedDecommissioningCostObligationFromMostRecentlyApprovedStudy	2694079000	USD
CY2013Q4	xel	Estimated Decommissioning Cost Obligation In Current Dollars EstimatedDecommissioningCostObligationInCurrentDollars	2884003000	USD
CY2012Q4	xel	Estimated Decommissioning Cost Obligation In Current Dollars EstimatedDecommissioningCostObligationInCurrentDollars	2787406000	USD
CY2013Q4	xel	Estimated Future Decommissioning Costs Undiscounted EstimatedFutureDecommissioningCostsUndiscounted	8581288000	USD
CY2012Q4	xel	Estimated Future Decommissioning Costs Undiscounted EstimatedFutureDecommissioningCostsUndiscounted	8581288000	USD
CY2013Q4	xel	Estimated Research And Experimentation Benefit EstimatedResearchAndExperimentationBenefit	6000000	USD
CY2013	xel	Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Asset Losses Gains Recognized As Regulatory Assets And Liabilities FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetLossesGainsRecognizedAsRegulatoryAssetsAndLiabilities	10535000	USD
CY2012	xel	Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Asset Losses Gains Recognized As Regulatory Assets And Liabilities FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetLossesGainsRecognizedAsRegulatoryAssetsAndLiabilities	10264000	USD
CY2011	xel	Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Asset Losses Gains Recognized As Regulatory Assets And Liabilities FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetLossesGainsRecognizedAsRegulatoryAssetsAndLiabilities	-483000	USD
CY2013	xel	Fuel Disposal Fee Charge FuelDisposalFeeCharge	0.001
CY2012	xel	Gain Loss On Hedging And Derivative Transactions GainLossOnHedgingAndDerivativeTransactions	85308000	USD
CY2013	xel	Gain Loss On Hedging And Derivative Transactions GainLossOnHedgingAndDerivativeTransactions	4704000	USD
CY2011	xel	Gain Loss On Hedging And Derivative Transactions GainLossOnHedgingAndDerivativeTransactions	-9966000	USD
CY2013Q4	xel	Guarantee Current Exposure GuaranteeCurrentExposure	300000	USD
CY2012Q3	xel	Income Tax Expense Benefit Related To Retiree Prescription Drug Benefits IncomeTaxExpenseBenefitRelatedToRetireePrescriptionDrugBenefits	-17000000	USD
CY2010Q1	xel	Income Tax Expense Benefit Related To Retiree Prescription Drug Benefits IncomeTaxExpenseBenefitRelatedToRetireePrescriptionDrugBenefits	17000000	USD
CY2012Q4	xel	Letters Of Credit Under Credit Facilities LettersOfCreditUnderCreditFacilities	14200000	USD
CY2013Q4	xel	Letters Of Credit Under Credit Facilities LettersOfCreditUnderCreditFacilities	47800000	USD
CY2011	xel	Matching Contributions Related To401 K Plan MatchingContributionsRelatedTo401KPlan	21600000	USD
CY2013	xel	Matching Contributions Related To401 K Plan MatchingContributionsRelatedTo401KPlan	7000000	USD
CY2012	xel	Matching Contributions Related To401 K Plan MatchingContributionsRelatedTo401KPlan	22200000	USD
CY2013	xel	Maximum Number Of Months Following End Of Annual Period In Which Revenues Are Earned To Be Included In Incentive Programs MaximumNumberOfMonthsFollowingEndOfAnnualPeriodInWhichRevenuesAreEarnedToBeIncludedInIncentivePrograms	P24M
CY2013	xel	Maximum Number Of Months Of Remaining Maturity At Time Of Purchase To Consider Investments In Certain Instruments As Cash Equivalents MaximumNumberOfMonthsOfRemainingMaturityAtTimeOfPurchaseToConsiderInvestmentsInCertainInstrumentsAsCashEquivalents	P3M
CY2013Q4	xel	Minimum Amount Of Time Between Nuclear Decommissioning Studies In Years MinimumAmountOfTimeBetweenNuclearDecommissioningStudiesInYears	P3Y
CY2013Q4	xel	New Top Tax Rate For Dividends NewTopTaxRateForDividends	0.2
CY2012	xel	Nuclear Decommissioning Expense Externally Funded NuclearDecommissioningExpenseExternallyFunded	0	USD
CY2011	xel	Nuclear Decommissioning Expense Externally Funded NuclearDecommissioningExpenseExternallyFunded	0	USD
CY2013	xel	Nuclear Decommissioning Expense Externally Funded NuclearDecommissioningExpenseExternallyFunded	6402000	USD
CY2012	xel	Nuclear Decommissioning Expense Internally Funded Including Interest Costs NuclearDecommissioningExpenseInternallyFundedIncludingInterestCosts	1251000	USD
CY2011	xel	Nuclear Decommissioning Expense Internally Funded Including Interest Costs NuclearDecommissioningExpenseInternallyFundedIncludingInterestCosts	456000	USD
CY2013	xel	Nuclear Decommissioning Expense Internally Funded Including Interest Costs NuclearDecommissioningExpenseInternallyFundedIncludingInterestCosts	0	USD
CY2013	xel	Nuclear Decommissioning Expense Net NuclearDecommissioningExpenseNet	6402000	USD
CY2011	xel	Nuclear Decommissioning Expense Net NuclearDecommissioningExpenseNet	-456000	USD
CY2012	xel	Nuclear Decommissioning Expense Net NuclearDecommissioningExpenseNet	-1251000	USD
CY2013	xel	Nuclear Fuel Amortization NuclearFuelAmortization	98089000	USD
CY2012	xel	Nuclear Fuel Amortization NuclearFuelAmortization	102651000	USD
CY2011	xel	Nuclear Fuel Amortization NuclearFuelAmortization	100902000	USD
CY2013Q4	xel	Number Of Additional Authorized Casks For Dry Cask Nuclear Storage Facility NumberOfAdditionalAuthorizedCasksForDryCaskNuclearStorageFacility	64	Cask
CY2010Q1	xel	Number Of Applicable Provisions Addressing Deductibility Of Retiree Health Care Costs NumberOfApplicableProvisionsAddressingDeductibilityOfRetireeHealthCareCosts	1
CY2013Q4	xel	Number Of Authorized Canisters Filled And Placed In Dry Cask Nuclear Storage Facility NumberOfAuthorizedCanistersFilledAndPlacedInDryCaskNuclearStorageFacility	15	Canister
CY2013Q4	xel	Number Of Authorized Canisters In Dry Cask Nuclear Storage Facility NumberOfAuthorizedCanistersInDryCaskNuclearStorageFacility	30	Canister
CY2013Q4	xel	Number Of Authorized Casks Filled And Placed In Dry Cask Nuclear Storage Facility NumberOfAuthorizedCasksFilledAndPlacedInDryCaskNuclearStorageFacility	35	Cask
CY2013	xel	Number Of Employers That Must Be Exceeded During Given Period In Order For Certain Union Workers To Participate In Multiemployer Plans NumberOfEmployersThatMustBeExceededDuringGivenPeriodInOrderForCertainUnionWorkersToParticipateInMultiemployerPlans	1	Employer
CY2013	xel	Number Of Leases Qualifying As Capital Leases NumberOfLeasesQualifyingAsCapitalLeases	3	Lease
CY2012Q1	xel	Number Of Shares Of Common Stock Purchased For Settlement Of Equity Awards NumberOfSharesOfCommonStockPurchasedForSettlementOfEquityAwards	900000	shares
CY2012Q4	xel	Number Of Years Approved For Use In Decommissioning Scenario In Years NumberOfYearsApprovedForUseInDecommissioningScenarioInYears	P60Y
CY2013Q4	xel	Number Of Years Bonus Depreciation Was Extended NumberOfYearsBonusDepreciationWasExtended	1
CY2013Q4	xel	Number Of Years Of Extended Operation At Nuclear Plant NumberOfYearsOfExtendedOperationAtNuclearPlant	P20Y
CY2013	xel	Number Of Years Of Tax Loss Carryback Period NumberOfYearsOfTaxLossCarrybackPeriod	2
CY2014Q1	xel	Numberofcontinuoussessiondaysin Congressbeforefueldisposalfeeadjustmentbecomeeffectiveunlessnewresolutionisapproved NumberofcontinuoussessiondaysinCongressbeforefueldisposalfeeadjustmentbecomeeffectiveunlessnewresolutionisapproved	P90D
CY2012Q4	xel	Other Assets Excluding Property Plant And Equipment OtherAssetsExcludingPropertyPlantAndEquipment	4706199000	USD
CY2011Q4	xel	Preferred Stock Redemption Purchase Price PreferredStockRedemptionPurchasePrice	108000000	USD
CY2011	xel	Pretax Charge For Project Costs PretaxChargeForProjectCosts	0	USD
CY2013	xel	Pretax Charge For Project Costs PretaxChargeForProjectCosts	0	USD
CY2012	xel	Pretax Charge For Project Costs PretaxChargeForProjectCosts	20766000	USD
CY2012	xel	Purchase Of Common Stock For Settlement Of Equity Awards PurchaseOfCommonStockForSettlementOfEquityAwards	23307000	USD
CY2011	xel	Purchase Of Common Stock For Settlement Of Equity Awards PurchaseOfCommonStockForSettlementOfEquityAwards	0	USD
CY2013	xel	Purchase Of Common Stock For Settlement Of Equity Awards PurchaseOfCommonStockForSettlementOfEquityAwards	0	USD
CY2013Q1	xel	Researchandexperimentationbenefitrecorded Researchandexperimentationbenefitrecorded	5000000	USD
CY2013	xel	Wind Project Refund WindProjectRefund	0	USD
CY2011	xel	Wind Project Refund WindProjectRefund	101261000	USD
CY2013	xel	Short Term Debt Weighted Average Interest Rate Computed On Daily Basis ShortTermDebtWeightedAverageInterestRateComputedOnDailyBasis	0.0031
CY2012	xel	Short Term Debt Weighted Average Interest Rate Computed On Daily Basis ShortTermDebtWeightedAverageInterestRateComputedOnDailyBasis	0.0035
CY2011	xel	Short Term Debt Weighted Average Interest Rate Computed On Daily Basis ShortTermDebtWeightedAverageInterestRateComputedOnDailyBasis	0.0036
CY2013Q4	xel	Short Term Debt Weighted Average Interest Rate Computed On Daily Basis ShortTermDebtWeightedAverageInterestRateComputedOnDailyBasis	0.0029
CY2012Q4	xel	Tax Benefits Associated With Nol And Tax Credit Carryforwards TaxBenefitsAssociatedWithNolAndTaxCreditCarryforwards	33500000	USD
CY2013Q4	xel	Tax Benefits Associated With Nol And Tax Credit Carryforwards TaxBenefitsAssociatedWithNolAndTaxCreditCarryforwards	27100000	USD
CY2013	xel	Term Of Letters Of Credit TermOfLettersOfCredit	P1Y
CY2012Q4	xel	Unrecognized Tax Benefits That Would Not Impact Effective Tax Rate UnrecognizedTaxBenefitsThatWouldNotImpactEffectiveTaxRate	29800000	USD
CY2013Q4	xel	Unrecognized Tax Benefits That Would Not Impact Effective Tax Rate UnrecognizedTaxBenefitsThatWouldNotImpactEffectiveTaxRate	28300000	USD
CY2011	xel	Wind Project Deposit WindProjectDeposit	90833000	USD
CY2013	xel	Wind Project Deposit WindProjectDeposit	0	USD
CY2012	xel	Wind Project Deposit WindProjectDeposit	0	USD
CY2012	xel	Wind Project Refund WindProjectRefund	0	USD

Files In Submission

Name	View Source	Status
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0000072903-14-000009-index.html	Edgar Link	pending
0000072903-14-000009.txt	Edgar Link	pending
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xel-20131231.xml	Edgar Link	completed
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xel-20131231_cal.xml	Edgar Link	unprocessable
xel-20131231_def.xml	Edgar Link	unprocessable
xel-20131231_lab.xml	Edgar Link	unprocessable
xel-20131231_pre.xml	Edgar Link	unprocessable

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$XEL
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2012 Q4 Form 10-K Financial Statement

#000007290314000009 Filed on February 21, 2014

Income Statement

Balance Sheet

Cashflow Statement

Facts In Submission

Files In Submission

$XEL XCEL ENERGY INC Stock $xel

2012 Q4 Form 10-K Financial Statement

#000007290314000009 Filed on February 21, 2014

Income Statement

Balance Sheet

Cashflow Statement

Facts In Submission

Files In Submission

$XEL
XCEL ENERGY INC Stock $xel