$TLN
Talen Energy Corp Stock $tln

$tln Overview Financials Valuation SEC Filings Company Website

2015 Q4 Form 10-K Financial Statement

#000162253616000111 Filed on February 29, 2016

Income Statement

Concept	2015 Q4	2015	2014 Q4
Revenue	$1.122B	$4.481B	$1.353B
YoY Change	-17.07%	-2.18%	43.63%
Cost Of Revenue	$337.0M	$1.870B	$2.190B
YoY Change	-84.61%	-16.89%	557.66%
Gross Profit	$714.0M	$2.611B	$738.0M
YoY Change	-3.25%	12.01%	21.18%
Gross Profit Margin	63.64%	58.27%	54.55%
Selling, General & Admin	$309.0M	$1.117B	$273.0M
YoY Change	13.19%	4.98%	5.0%
% of Gross Profit	43.28%	42.78%	36.99%
Research & Development
YoY Change
% of Gross Profit
Depreciation & Amortization	$160.0M	$356.0M	$117.0M
YoY Change	36.75%	19.87%	-7.14%
% of Gross Profit	22.41%	13.63%	15.85%
Operating Expenses	$541.0M	$1.993B	$467.0M
YoY Change	15.85%	3.05%	-60.39%
Operating Profit	$94.00M	-$39.00M	$271.0M
YoY Change	-65.31%	-109.82%	-147.54%
Interest Expense	-$65.00M	$211.0M	-$29.00M
YoY Change	124.14%	70.16%	-19.44%
% of Operating Profit	-69.15%		-10.7%
Other Income/Expense, Net	-$129.0M	-$118.0M	$7.000M
YoY Change	-1942.86%	-493.33%	-53.33%
Pretax Income	-$199.0M	-$368.0M	$249.0M
YoY Change	-179.92%	-221.45%	-137.96%
Income Tax	-$76.00M	-$27.00M	$100.0M
% Of Pretax Income			40.16%
Net Earnings	-$62.00M	-$341.0M	$362.0M
YoY Change	-117.13%	-183.17%	-190.05%
Net Earnings / Revenue	-5.53%	-7.61%	26.76%
Basic Earnings Per Share	-$0.48	-$3.10	$4.33
Diluted Earnings Per Share	-$0.48	-$3.10	$4.33
COMMON SHARES
Basic Shares Outstanding	128.5M shares	109.9M shares
Diluted Shares Outstanding		109.9M shares

Balance Sheet

Concept	2015 Q4	2015	2014 Q4
SHORT-TERM ASSETS
Cash & Short-Term Investments	$141.0M	$141.0M	$352.0M
YoY Change	-59.94%	-59.94%
Cash & Equivalents	$141.0M	$141.0M	$352.0M
Short-Term Investments
Other Short-Term Assets	$12.00M	$1.686B	$26.00M
YoY Change	-53.85%	24.8%
Inventory	$508.0M	$508.0M	$455.0M
Prepaid Expenses	$52.00M		$70.00M
Receivables	$205.0M	$427.0M	$186.0M
Other Receivables	$0.00	$0.00	$36.00M
Total Short-Term Assets	$2.762B	$2.762B	$2.701B
YoY Change	2.26%	2.26%
LONG-TERM ASSETS
Property, Plant & Equipment	$8.587B	$8.587B	$6.436B
YoY Change	33.42%	33.42%
Goodwill	$0.00		$72.00M
YoY Change	-100.0%		-16.28%
Intangibles	$310.0M		$257.0M
YoY Change	20.62%
Long-Term Investments	$25.00M	$25.00M	$30.00M
YoY Change	-16.67%	-16.67%
Other Assets	$43.00M	$1.125B	$75.00M
YoY Change	-42.67%	-11.0%
Total Long-Term Assets	$484.0M	$10.05B	$643.0M
YoY Change	-24.73%	24.67%
TOTAL ASSETS
Total Short-Term Assets	$2.762B	$2.762B	$2.701B
Total Long-Term Assets	$484.0M	$10.05B	$643.0M
Total Assets	$12.81B	$12.81B	$10.76B
YoY Change	19.04%	19.04%
SHORT-TERM LIABILITIES
YoY Change
Accounts Payable	$291.0M	$291.0M	$361.0M
YoY Change	-19.39%	-19.39%
Accrued Expenses	$43.00M	$43.00M	$16.00M
YoY Change	168.75%	168.75%
Deferred Revenue
YoY Change
Short-Term Debt	$608.0M	$0.00	$630.0M
YoY Change	-3.49%
Long-Term Debt Due	$399.0M	$1.007B	$535.0M
YoY Change	-25.42%	-13.56%
Total Short-Term Liabilities	$2.088B	$2.088B	$2.890B
YoY Change	-27.75%	-27.75%
LONG-TERM LIABILITIES
Long-Term Debt	$3.787B	$3.787B	$1.683B
YoY Change	125.01%	125.01%
Other Long-Term Liabilities	$91.00M	$1.029B	$123.0M
YoY Change	-26.02%	-0.1%
Total Long-Term Liabilities	$2.631B	$4.816B	$2.280B
YoY Change	15.39%	77.52%
TOTAL LIABILITIES
Total Short-Term Liabilities	$2.088B	$2.088B	$2.890B
Total Long-Term Liabilities	$2.631B	$4.816B	$2.280B
Total Liabilities	$4.719B	$8.506B	$5.170B
YoY Change	-8.72%	24.12%
SHAREHOLDERS EQUITY
Retained Earnings	-$373.0M		$0.00
YoY Change
Common Stock	$4.702B		$0.00
YoY Change
Preferred Stock
YoY Change
Treasury Stock (at cost)
YoY Change
Treasury Stock Shares
Shareholders Equity	$4.303B	$4.303B	$3.907B
YoY Change
Total Liabilities & Shareholders Equity	$12.81B	$12.81B	$10.76B
YoY Change	19.04%	19.04%

Cashflow Statement

Concept	2015 Q4	2015	2014 Q4
OPERATING ACTIVITIES
Net Income	-$62.00M	-$341.0M	$362.0M
YoY Change	-117.13%	-183.17%	-190.05%
Depreciation, Depletion And Amortization	$160.0M	$356.0M	$117.0M
YoY Change	36.75%	19.87%	-7.14%
Cash From Operating Activities	$37.00M	$768.0M	-$3.000M
YoY Change	-1333.33%	66.23%	-98.27%
INVESTING ACTIVITIES
Capital Expenditures	$234.0M	$451.0M	$148.0M
YoY Change	58.11%	8.41%	-41.04%
Acquisitions
YoY Change
Other Investing Activities	-$508.0M	-$22.00M	$989.0M
YoY Change	-151.37%	15.79%	-3510.34%
Cash From Investing Activities	-$742.0M	-$915.0M	$841.0M
YoY Change	-188.23%	-284.1%	-400.36%
FINANCING ACTIVITIES
Cash Dividend Paid
YoY Change
Common Stock Issuance & Retirement, Net
YoY Change
Debt Paid & Issued, Net		$335.0M
YoY Change		8.41%
Cash From Financing Activities	198.0M	-$64.00M	-680.0M
YoY Change	-129.12%	-92.43%	-582.27%
NET CHANGE
Cash From Operating Activities	37.00M	$768.0M	-3.000M
Cash From Investing Activities	-742.0M	-$915.0M	841.0M
Cash From Financing Activities	198.0M	-$64.00M	-680.0M
Net Change In Cash	-507.0M	-$211.0M	158.0M
YoY Change	-420.89%	-286.73%	-150.64%
FREE CASH FLOW
Cash From Operating Activities	$37.00M	$768.0M	-$3.000M
Capital Expenditures	$234.0M	$451.0M	$148.0M
Free Cash Flow	-$197.0M	$317.0M	-$151.0M
YoY Change	30.46%	589.13%	-64.39%

Facts In Submission

Frame	Concept Type	Concept / XBRL Key	Value	Unit
CY2015	dei	Amendment Flag AmendmentFlag	false
CY2015	dei	Current Fiscal Year End Date CurrentFiscalYearEndDate	--12-31
CY2015	dei	Document Fiscal Period Focus DocumentFiscalPeriodFocus	FY
CY2015	dei	Document Fiscal Year Focus DocumentFiscalYearFocus	2015
CY2015	dei	Document Period End Date DocumentPeriodEndDate	2015-12-31
CY2015	dei	Document Type DocumentType	10-K
CY2015	dei	Entity Central Index Key EntityCentralIndexKey	0001622536
CY2016Q1	dei	Entity Common Stock Shares Outstanding EntityCommonStockSharesOutstanding	128526720	shares
CY2015	dei	Entity Current Reporting Status EntityCurrentReportingStatus	Yes
CY2015	dei	Entity Filer Category EntityFilerCategory	Non-accelerated Filer
CY2015Q2	dei	Entity Public Float EntityPublicFloat	1429161711	USD
CY2015	dei	Entity Registrant Name EntityRegistrantName	TALEN ENERGY CORPORATION
CY2015	dei	Entity Voluntary Filers EntityVoluntaryFilers	No
CY2015	dei	Entity Well Known Seasoned Issuer EntityWellKnownSeasonedIssuer	No
CY2015Q4	tln	Amount Of Potential Liability That Maybe Required To Be Funded By Master During Life Of Partnership AmountOfPotentialLiabilityThatMaybeRequiredToBeFundedByMasterDuringLifeOfPartnership	12000000	USD
CY2013	tln	Asset Impairment Charges Included In Operating Expenses Or Other Income Expense Net AssetImpairmentChargesIncludedInOperatingExpensesOrOtherIncomeExpenseNet	65000000	USD
CY2014	tln	Asset Impairment Charges Included In Operating Expenses Or Other Income Expense Net AssetImpairmentChargesIncludedInOperatingExpensesOrOtherIncomeExpenseNet	20000000	USD
CY2015	tln	Asset Impairment Charges Included In Operating Expenses Or Other Income Expense Net AssetImpairmentChargesIncludedInOperatingExpensesOrOtherIncomeExpenseNet	662000000	USD
CY2015	tln	Asset Retirement Obligation Revisionof Estimate Revision Of Legislation AssetRetirementObligationRevisionofEstimateRevisionOfLegislation	41000000	USD
CY2014	tln	Asset Retirement Obligations Liabilities Assumed AssetRetirementObligationsLiabilitiesAssumed	0	USD
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CY2015Q4	tln	Concentration Risk Credit Risk Fin Instrument Maximum Exposure ConcentrationRiskCreditRiskFinInstrumentMaximumExposure	574000000	USD
CY2013	tln	Contributions Made To Limited Liability Company Llc ContributionsMadeToLimitedLiabilityCompanyLLC	1577000000	USD
CY2014	tln	Contributions Made To Limited Liability Company Llc ContributionsMadeToLimitedLiabilityCompanyLLC	739000000	USD
CY2015	tln	Contributions Made To Limited Liability Company Llc ContributionsMadeToLimitedLiabilityCompanyLLC	248000000	USD
CY2015	tln	Limited Live In Years Of Fifth Partnership Private Equity LimitedLiveInYearsOfFifthPartnershipPrivateEquity	P15Y
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CY2015Q4	tln	Current Appropriated Federal Loan Guarantees For Nuclear Projects CurrentAppropriatedFederalLoanGuaranteesForNuclearProjects	18500000000	USD
CY2014Q4	tln	Deferred Investment Tax Credit DeferredInvestmentTaxCredit	27000000	USD
CY2015Q4	tln	Deferred Investment Tax Credit DeferredInvestmentTaxCredit	15000000	USD
CY2014Q4	tln	Deferred Tax Assets Deferred Investment Tax Credits DeferredTaxAssetsDeferredInvestmentTaxCredits	11000000	USD
CY2015Q4	tln	Deferred Tax Assets Deferred Investment Tax Credits DeferredTaxAssetsDeferredInvestmentTaxCredits	6000000	USD
CY2015	tln	Defined Benefit Plan Amortization Of Actuarial Gain Loss In Accumulated Other Comprehensive Income And Regulatory Assets Liabilities DefinedBenefitPlanAmortizationOfActuarialGainLossInAccumulatedOtherComprehensiveIncomeAndRegulatoryAssetsLiabilities	20000000	USD
CY2013	tln	Defined Benefit Plan Health Care Rate Assumed For Next Fiscal Year Benefit Obligation DefinedBenefitPlanHealthCareRateAssumedForNextFiscalYearBenefitObligation	0.076
CY2014	tln	Defined Benefit Plan Health Care Rate Assumed For Next Fiscal Year Benefit Obligation DefinedBenefitPlanHealthCareRateAssumedForNextFiscalYearBenefitObligation	0.072
CY2015	tln	Defined Benefit Plan Health Care Rate Assumed For Next Fiscal Year Benefit Obligation DefinedBenefitPlanHealthCareRateAssumedForNextFiscalYearBenefitObligation	0.068
CY2013	tln	Defined Benefit Plan Ultimate Health Care Cost Trend Rate Benefit Obligation DefinedBenefitPlanUltimateHealthCareCostTrendRateBenefitObligation	0.05
CY2014	tln	Defined Benefit Plan Ultimate Health Care Cost Trend Rate Benefit Obligation DefinedBenefitPlanUltimateHealthCareCostTrendRateBenefitObligation	0.05
CY2015	tln	Defined Benefit Plan Ultimate Health Care Cost Trend Rate Benefit Obligation DefinedBenefitPlanUltimateHealthCareCostTrendRateBenefitObligation	0.05
CY2013	tln	Defined Benefit Plan Year That Rate Reaches Ultimate Trend Rate Benefit Obligation DefinedBenefitPlanYearThatRateReachesUltimateTrendRateBenefitObligation	2020
CY2014	tln	Defined Benefit Plan Year That Rate Reaches Ultimate Trend Rate Benefit Obligation DefinedBenefitPlanYearThatRateReachesUltimateTrendRateBenefitObligation	2020
CY2015	tln	Defined Benefit Plan Year That Rate Reaches Ultimate Trend Rate Benefit Obligation DefinedBenefitPlanYearThatRateReachesUltimateTrendRateBenefitObligation	2020
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CY2015	tln	Depreciation From Continuing And Discontinued Operations DepreciationFromContinuingAndDiscontinuedOperations	356000000	USD
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CY2014	tln	Effective Income Tax Rate Reconciliation Deduction Goodwill Impairment EffectiveIncomeTaxRateReconciliationDeductionGoodwillImpairment	0	USD
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CY2013Q1	tln	Loss Contingency Civil Penalty Amount Per Day Per Violation LossContingencyCivilPenaltyAmountPerDayPerViolation	36000	USD
CY2013Q1	tln	Loss Contingency Civil Penalty Amount Used For Beneficial Projects LossContingencyCivilPenaltyAmountUsedForBeneficialProjects	100000	USD
CY2013Q3	tln	Loss Contingency Estimated Number Of Projects Alleged Not In Compliance LossContingencyEstimatedNumberOfProjectsAllegedNotInCompliance	40	project
CY2014Q3	tln	Loss Contingency Number Of Plants Included In Second Complaint LossContingencyNumberOfPlantsIncludedInSecondComplaint	8	project
CY2014Q2	tln	Loss Contingency Number Of Plants With Claims Dismissed LossContingencyNumberOfPlantsWithClaimsDismissed	3	project
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CY2015Q4	tln	Loss Contingency Number Of Plants With More Preferable Legal Standards Claims LossContingencyNumberOfPlantsWithMorePreferableLegalStandardsClaims	2	claim
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CY2015Q4	tln	Maximum Amount Assessed For Nuclear Incident MaximumAmountAssessedForNuclearIncident	255000000	USD
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CY2012Q2	tln	Number Electric Utilities Ordered To Enter Into Long Term Contracts NumberElectricUtilitiesOrderedToEnterIntoLongTermContracts	3	utility
CY2015	tln	Number Of Applicants For Nuclear Guarantee NumberOfApplicantsForNuclearGuarantee	10	applicant
CY2015	tln	Number Of Applicants Still Active For Nuclear Guarantee NumberOfApplicantsStillActiveForNuclearGuarantee	8	applicant
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CY2013	tln	Payment Of Distributions To Affiliate PaymentOfDistributionsToAffiliate	408000000	USD
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CY2014	tln	Price Risk Management Assets And Liabilities PriceRiskManagementAssetsAndLiabilities	30000000	USD
CY2015	tln	Price Risk Management Assets And Liabilities PriceRiskManagementAssetsAndLiabilities	14000000	USD
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CY2015Q4	tln	Price Risk Management Liabilities PriceRiskManagementLiabilities	108000000	USD
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CY2015	tln	Taxes Other Than Income State Capital Stock Tax Expense Benefit TaxesOtherThanIncomeStateCapitalStockTaxExpenseBenefit	1000000	USD
CY2013	tln	Taxes Other Than Income State Gross Receipts Tax Expense Benefit TaxesOtherThanIncomeStateGrossReceiptsTaxExpenseBenefit	37000000	USD
CY2014	tln	Taxes Other Than Income State Gross Receipts Tax Expense Benefit TaxesOtherThanIncomeStateGrossReceiptsTaxExpenseBenefit	45000000	USD
CY2015	tln	Taxes Other Than Income State Gross Receipts Tax Expense Benefit TaxesOtherThanIncomeStateGrossReceiptsTaxExpenseBenefit	41000000	USD
CY2013	tln	Total Increase Decrease To Federal Income Tax On Income From Continuing Operations At Statuatory Tax Rate TotalIncreaseDecreaseToFederalIncomeTaxOnIncomeFromContinuingOperationsAtStatuatoryTaxRate	-12000000	USD
CY2014	tln	Total Increase Decrease To Federal Income Tax On Income From Continuing Operations At Statuatory Tax Rate TotalIncreaseDecreaseToFederalIncomeTaxOnIncomeFromContinuingOperationsAtStatuatoryTaxRate	10000000	USD
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CY2015	tln	Transition Services Agreement Tsa Term TransitionServicesAgreementTSATerm	P2Y
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CY2015	tln	Unrealized Gains Losses On Derivatives And Other Hedging Activities UnrealizedGainsLossesOnDerivativesAndOtherHedgingActivities	119000000	USD
CY2013	tln	Unregulated Wholesale Energy UnregulatedWholesaleEnergy	2890000000	USD
CY2014	tln	Unregulated Wholesale Energy UnregulatedWholesaleEnergy	2653000000	USD
CY2015	tln	Unregulated Wholesale Energy UnregulatedWholesaleEnergy	2828000000	USD
CY2014Q4	us-gaap	Accounts Payable Current AccountsPayableCurrent	361000000	USD
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CY2014Q4	us-gaap	Accounts Payable Related Parties Current AccountsPayableRelatedPartiesCurrent	50000000	USD
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CY2014Q4	us-gaap	Accounts Receivable Related Parties AccountsReceivableRelatedParties	36000000	USD
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CY2015Q4	us-gaap	Accumulated Depreciation Depletion And Amortization Property Plant And Equipment AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment	6411000000	USD
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CY2015Q4	us-gaap	Additional Collateral Aggregate Fair Value AdditionalCollateralAggregateFairValue	34000000	USD
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CY2015Q4	us-gaap	Additional Paid In Capital Common Stock AdditionalPaidInCapitalCommonStock	4702000000	USD
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CY2014	us-gaap	Adjustment For Amortization AdjustmentForAmortization	163000000	USD
CY2015	us-gaap	Adjustment For Amortization AdjustmentForAmortization	222000000	USD
CY2015	us-gaap	Adjustments To Additional Paid In Capital Sharebased Compensation Requisite Service Period Recognition Value AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue	2000000	USD
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CY2015	us-gaap	Allocated Share Based Compensation Expense AllocatedShareBasedCompensationExpense	18000000	USD
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CY2015Q4	us-gaap	Amount Of Restricted Net Assets For Consolidated And Unconsolidated Subsidiaries AmountOfRestrictedNetAssetsForConsolidatedAndUnconsolidatedSubsidiaries	3300000000	USD
CY2015	us-gaap	Antidilutive Securities Excluded From Computation Of Earnings Per Share Amount AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount	731000	shares
CY2013	us-gaap	Asset Impairment Charges AssetImpairmentCharges	65000000	USD
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CY2015	us-gaap	Asset Impairment Charges AssetImpairmentCharges	657000000	USD
CY2013Q4	us-gaap	Asset Retirement Obligation AssetRetirementObligation	404000000	USD
CY2014Q4	us-gaap	Asset Retirement Obligation AssetRetirementObligation	425000000	USD
CY2015Q4	us-gaap	Asset Retirement Obligation AssetRetirementObligation	501000000	USD
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CY2015	us-gaap	Asset Retirement Obligation Accretion Expense AssetRetirementObligationAccretionExpense	35000000	USD
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CY2015	us-gaap	Asset Retirement Obligation Liabilities Settled AssetRetirementObligationLiabilitiesSettled	4000000	USD
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CY2015	us-gaap	Asset Retirement Obligation Revision Of Estimate AssetRetirementObligationRevisionOfEstimate	25000000	USD
CY2014Q4	us-gaap	Asset Retirement Obligations Noncurrent AssetRetirementObligationsNoncurrent	415000000	USD
CY2015Q4	us-gaap	Asset Retirement Obligations Noncurrent AssetRetirementObligationsNoncurrent	490000000	USD
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CY2015Q4	us-gaap	Assets Assets	12826000000	USD
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CY2015	us-gaap	Comprehensive Income Net Of Tax Attributable To Noncontrolling Interest ComprehensiveIncomeNetOfTaxAttributableToNoncontrollingInterest	0	USD
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CY2014	us-gaap	Comprehensive Income Net Of Tax Including Portion Attributable To Noncontrolling Interest ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest	310000000	USD
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CY2015Q4	us-gaap	Available For Sale Debt Securities Amortized Cost Basis AvailableForSaleDebtSecuritiesAmortizedCostBasis	236000000	USD
CY2015Q4	us-gaap	Available For Sale Securities Debt Maturities After Five Through Ten Years Amortized Cost AvailableForSaleSecuritiesDebtMaturitiesAfterFiveThroughTenYearsAmortizedCost	67000000	USD
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CY2015Q4	us-gaap	Available For Sale Securities Debt Maturities After One Through Five Years Amortized Cost AvailableForSaleSecuritiesDebtMaturitiesAfterOneThroughFiveYearsAmortizedCost	101000000	USD
CY2015Q4	us-gaap	Available For Sale Securities Debt Maturities After One Through Five Years Fair Value AvailableForSaleSecuritiesDebtMaturitiesAfterOneThroughFiveYearsFairValue	102000000	USD
CY2015Q4	us-gaap	Available For Sale Securities Debt Maturities After Ten Years Amortized Cost AvailableForSaleSecuritiesDebtMaturitiesAfterTenYearsAmortizedCost	61000000	USD
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CY2015Q4	us-gaap	Commitments And Contingencies CommitmentsAndContingencies		USD
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CY2014Q4	us-gaap	Common Stock Value CommonStockValue	0	USD
CY2015Q4	us-gaap	Common Stock Value CommonStockValue	0	USD
CY2013	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	-201000000	USD
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CY2014Q4	us-gaap	Debt Instrument Carrying Amount DebtInstrumentCarryingAmount	2238000000	USD
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CY2014Q4	us-gaap	Decommissioning Fund Investments DecommissioningFundInvestments	950000000	USD
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CY2014Q4	us-gaap	Deferred Tax Assets Operating Loss Carryforwards Domestic DeferredTaxAssetsOperatingLossCarryforwardsDomestic	22000000	USD
CY2015Q4	us-gaap	Deferred Tax Assets Operating Loss Carryforwards Domestic DeferredTaxAssetsOperatingLossCarryforwardsDomestic	110000000	USD
CY2014Q4	us-gaap	Deferred Tax Assets Operating Loss Carryforwards State And Local DeferredTaxAssetsOperatingLossCarryforwardsStateAndLocal	79000000	USD
CY2015Q4	us-gaap	Deferred Tax Assets Operating Loss Carryforwards State And Local DeferredTaxAssetsOperatingLossCarryforwardsStateAndLocal	19000000	USD
CY2014Q4	us-gaap	Deferred Tax Assets Other DeferredTaxAssetsOther	79000000	USD
CY2015Q4	us-gaap	Deferred Tax Assets Other DeferredTaxAssetsOther	105000000	USD
CY2014Q4	us-gaap	Deferred Tax Assets Tax Credit Carryforwards DeferredTaxAssetsTaxCreditCarryforwards	13000000	USD
CY2015Q4	us-gaap	Deferred Tax Assets Tax Credit Carryforwards DeferredTaxAssetsTaxCreditCarryforwards	0	USD
CY2014Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Compensation And Benefits Pensions DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsPensions	98000000	USD
CY2015Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Compensation And Benefits Pensions DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsPensions	121000000	USD
CY2014Q4	us-gaap	Deferred Tax Assets Valuation Allowance DeferredTaxAssetsValuationAllowance	78000000	USD
CY2015Q4	us-gaap	Deferred Tax Assets Valuation Allowance DeferredTaxAssetsValuationAllowance	10000000	USD
CY2014Q4	us-gaap	Deferred Tax Liabilities DeferredTaxLiabilities	1220000000	USD
CY2015Q4	us-gaap	Deferred Tax Liabilities DeferredTaxLiabilities	1586000000	USD
CY2014Q4	us-gaap	Deferred Tax Liabilities Derivatives DeferredTaxLiabilitiesDerivatives	28000000	USD
CY2015Q4	us-gaap	Deferred Tax Liabilities Derivatives DeferredTaxLiabilitiesDerivatives	53000000	USD
CY2014Q4	us-gaap	Deferred Tax Liabilities Noncurrent DeferredTaxLiabilitiesNoncurrent	1223000000	USD
CY2015Q4	us-gaap	Deferred Tax Liabilities Noncurrent DeferredTaxLiabilitiesNoncurrent	1587000000	USD
CY2014Q4	us-gaap	Deferred Tax Liabilities Other DeferredTaxLiabilitiesOther	42000000	USD
CY2015Q4	us-gaap	Deferred Tax Liabilities Other DeferredTaxLiabilitiesOther	10000000	USD
CY2014Q4	us-gaap	Deferred Tax Liabilities Property Plant And Equipment DeferredTaxLiabilitiesPropertyPlantAndEquipment	1374000000	USD
CY2015Q4	us-gaap	Deferred Tax Liabilities Property Plant And Equipment DeferredTaxLiabilitiesPropertyPlantAndEquipment	1874000000	USD
CY2014Q4	us-gaap	Defined Benefit Pension Plan Liabilities Noncurrent DefinedBenefitPensionPlanLiabilitiesNoncurrent	299000000	USD
CY2015Q4	us-gaap	Defined Benefit Pension Plan Liabilities Noncurrent DefinedBenefitPensionPlanLiabilitiesNoncurrent	340000000	USD
CY2015Q2	us-gaap	Defined Benefit Plan Funded Status Of Plan DefinedBenefitPlanFundedStatusOfPlan	-257000000	USD
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CY2013	us-gaap	Defined Benefit Plan Ultimate Health Care Cost Trend Rate DefinedBenefitPlanUltimateHealthCareCostTrendRate	0.055
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CY2013Q4	us-gaap	Defined Benefit Plan Year That Rate Reaches Ultimate Trend Rate DefinedBenefitPlanYearThatRateReachesUltimateTrendRate	2019
CY2014Q4	us-gaap	Defined Benefit Plan Year That Rate Reaches Ultimate Trend Rate DefinedBenefitPlanYearThatRateReachesUltimateTrendRate	2020
CY2015Q4	us-gaap	Defined Benefit Plan Year That Rate Reaches Ultimate Trend Rate DefinedBenefitPlanYearThatRateReachesUltimateTrendRate	2020
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CY2014Q4	us-gaap	Derivative Asset Fair Value Offset Against Collateral Net Of Not Subject To Master Netting Arrangement Policy Election DerivativeAssetFairValueOffsetAgainstCollateralNetOfNotSubjectToMasterNettingArrangementPolicyElection	248000000	USD
CY2015Q4	us-gaap	Derivative Asset Fair Value Offset Against Collateral Net Of Not Subject To Master Netting Arrangement Policy Election DerivativeAssetFairValueOffsetAgainstCollateralNetOfNotSubjectToMasterNettingArrangementPolicyElection	182000000	USD
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CY2014Q4	us-gaap	Derivative Assets DerivativeAssets	1318000000	USD
CY2015Q4	us-gaap	Derivative Assets DerivativeAssets	693000000	USD
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CY2015Q4	us-gaap	Derivative Collateral Obligation To Return Cash DerivativeCollateralObligationToReturnCash	74000000	USD
CY2014Q4	us-gaap	Derivative Collateral Right To Reclaim Cash DerivativeCollateralRightToReclaimCash	58000000	USD
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CY2014Q4	us-gaap	Derivative Instruments And Hedges DerivativeInstrumentsAndHedges	1079000000	USD
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CY2014Q4	us-gaap	Derivative Liability Not Offset Policy Election Deduction DerivativeLiabilityNotOffsetPolicyElectionDeduction	1060000000	USD
CY2015Q4	us-gaap	Derivative Liability Not Offset Policy Election Deduction DerivativeLiabilityNotOffsetPolicyElectionDeduction	437000000	USD
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CY2014	us-gaap	Discontinued Operation Tax Effect Of Discontinued Operation DiscontinuedOperationTaxEffectOfDiscontinuedOperation	109000000	USD
CY2013	us-gaap	Distribution Made To Limited Liability Company Llc Member Cash Distributions Declared DistributionMadeToLimitedLiabilityCompanyLLCMemberCashDistributionsDeclared	427000000	USD
CY2014	us-gaap	Distribution Made To Limited Liability Company Llc Member Cash Distributions Declared DistributionMadeToLimitedLiabilityCompanyLLCMemberCashDistributionsDeclared	1940000000	USD
CY2015	us-gaap	Distribution Made To Limited Liability Company Llc Member Cash Distributions Declared DistributionMadeToLimitedLiabilityCompanyLLCMemberCashDistributionsDeclared	410000000	USD
CY2013	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	-2.75
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CY2015Q4	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	-0.48
CY2015	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	-3.10
CY2013	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	-2.75
CY2014Q1	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	-0.79
CY2014Q2	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.16
CY2014Q3	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	1.21
CY2014Q4	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	4.33
CY2014	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	4.91
CY2015Q1	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	1.15
CY2015Q2	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.26
CY2015Q3	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	-3.12
CY2015Q4	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	-0.48
CY2015	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	-3.10
CY2013	us-gaap	Effective Income Tax Rate Continuing Operations EffectiveIncomeTaxRateContinuingOperations	0.379
CY2014	us-gaap	Effective Income Tax Rate Continuing Operations EffectiveIncomeTaxRateContinuingOperations	0.383
CY2015	us-gaap	Effective Income Tax Rate Continuing Operations EffectiveIncomeTaxRateContinuingOperations	0.074
CY2013	us-gaap	Effective Income Tax Rate Reconciliation At Federal Statutory Income Tax Rate EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate	0.35
CY2014	us-gaap	Effective Income Tax Rate Reconciliation At Federal Statutory Income Tax Rate EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate	0.35
CY2015	us-gaap	Effective Income Tax Rate Reconciliation At Federal Statutory Income Tax Rate EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate	0.35
CY2013	us-gaap	Federal Income Tax Expense Benefit Continuing Operations FederalIncomeTaxExpenseBenefitContinuingOperations	-148000000	USD
CY2014	us-gaap	Federal Income Tax Expense Benefit Continuing Operations FederalIncomeTaxExpenseBenefitContinuingOperations	92000000	USD
CY2015	us-gaap	Federal Income Tax Expense Benefit Continuing Operations FederalIncomeTaxExpenseBenefitContinuingOperations	10000000	USD
CY2014Q4	us-gaap	Finite Lived Intangible Assets Accumulated Amortization FiniteLivedIntangibleAssetsAccumulatedAmortization	33000000	USD
CY2015Q4	us-gaap	Finite Lived Intangible Assets Accumulated Amortization FiniteLivedIntangibleAssetsAccumulatedAmortization	36000000	USD
CY2014Q4	us-gaap	Finite Lived Intangible Assets Gross FiniteLivedIntangibleAssetsGross	297000000	USD
CY2015Q4	us-gaap	Finite Lived Intangible Assets Gross FiniteLivedIntangibleAssetsGross	350000000	USD
CY2013	us-gaap	Fuel Costs FuelCosts	1048000000	USD
CY2014	us-gaap	Fuel Costs FuelCosts	1196000000	USD
CY2015	us-gaap	Fuel Costs FuelCosts	1194000000	USD
CY2013	us-gaap	Gain Loss On Contract Termination GainLossOnContractTermination	-697000000	USD
CY2014	us-gaap	Gain Loss On Contract Termination GainLossOnContractTermination	0	USD
CY2015	us-gaap	Gain Loss On Contract Termination GainLossOnContractTermination	0	USD
CY2013	us-gaap	Gain Loss On Disposition Of Assets1 GainLossOnDispositionOfAssets1	0	USD
CY2014	us-gaap	Gain Loss On Disposition Of Assets1 GainLossOnDispositionOfAssets1	315000000	USD
CY2015	us-gaap	Gain Loss On Disposition Of Assets1 GainLossOnDispositionOfAssets1	0	USD
CY2013Q4	us-gaap	Goodwill Goodwill	86000000	USD
CY2014Q4	us-gaap	Goodwill Goodwill	72000000	USD
CY2015Q4	us-gaap	Goodwill Goodwill	0	USD
CY2014	us-gaap	Goodwill Acquired During Period GoodwillAcquiredDuringPeriod	0	USD
CY2015	us-gaap	Goodwill Acquired During Period GoodwillAcquiredDuringPeriod	393000000	USD
CY2014Q4	us-gaap	Goodwill Impaired Accumulated Impairment Loss GoodwillImpairedAccumulatedImpairmentLoss	0	USD
CY2015Q4	us-gaap	Goodwill Impaired Accumulated Impairment Loss GoodwillImpairedAccumulatedImpairmentLoss	465000000	USD
CY2014	us-gaap	Goodwill Impairment Loss GoodwillImpairmentLoss	0	USD
CY2015	us-gaap	Goodwill Impairment Loss GoodwillImpairmentLoss	465000000	USD
CY2014	us-gaap	Goodwill Written Off Related To Sale Of Business Unit GoodwillWrittenOffRelatedToSaleOfBusinessUnit	14000000	USD
CY2015	us-gaap	Goodwill Written Off Related To Sale Of Business Unit GoodwillWrittenOffRelatedToSaleOfBusinessUnit	0	USD
CY2014Q4	us-gaap	Guarantee Obligations Current Carrying Value GuaranteeObligationsCurrentCarryingValue	13000000	USD
CY2015Q4	us-gaap	Guarantee Obligations Current Carrying Value GuaranteeObligationsCurrentCarryingValue	0	USD
CY2013	us-gaap	Income Loss From Continuing Operations IncomeLossFromContinuingOperations	-262000000	USD
CY2014	us-gaap	Income Loss From Continuing Operations IncomeLossFromContinuingOperations	187000000	USD
CY2015	us-gaap	Income Loss From Continuing Operations IncomeLossFromContinuingOperations	-341000000	USD
CY2013	us-gaap	Income Loss From Continuing Operations Before Income Taxes Minority Interest And Income Loss From Equity Method Investments IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments	-420000000	USD
CY2014	us-gaap	Income Loss From Continuing Operations Before Income Taxes Minority Interest And Income Loss From Equity Method Investments IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments	303000000	USD
CY2015	us-gaap	Income Loss From Continuing Operations Before Income Taxes Minority Interest And Income Loss From Equity Method Investments IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments	-368000000	USD
CY2013	us-gaap	Income Loss From Continuing Operations Including Portion Attributable To Noncontrolling Interest IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest	-261000000	USD
CY2014Q1	us-gaap	Income Loss From Continuing Operations Including Portion Attributable To Noncontrolling Interest IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest	-58000000	USD
CY2014Q2	us-gaap	Income Loss From Continuing Operations Including Portion Attributable To Noncontrolling Interest IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest	2000000	USD
CY2014Q3	us-gaap	Income Loss From Continuing Operations Including Portion Attributable To Noncontrolling Interest IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest	94000000	USD
CY2014Q4	us-gaap	Income Loss From Continuing Operations Including Portion Attributable To Noncontrolling Interest IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest	149000000	USD
CY2014	us-gaap	Income Loss From Continuing Operations Including Portion Attributable To Noncontrolling Interest IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest	187000000	USD
CY2015Q1	us-gaap	Income Loss From Continuing Operations Including Portion Attributable To Noncontrolling Interest IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest	96000000	USD
CY2015Q2	us-gaap	Income Loss From Continuing Operations Including Portion Attributable To Noncontrolling Interest IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest	26000000	USD
CY2015Q3	us-gaap	Income Loss From Continuing Operations Including Portion Attributable To Noncontrolling Interest IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest	-401000000	USD
CY2015Q4	us-gaap	Income Loss From Continuing Operations Including Portion Attributable To Noncontrolling Interest IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest	-62000000	USD
CY2015	us-gaap	Income Loss From Continuing Operations Including Portion Attributable To Noncontrolling Interest IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest	-341000000	USD
CY2013	us-gaap	Income Loss From Continuing Operations Per Basic Share IncomeLossFromContinuingOperationsPerBasicShare	-3.13
CY2014Q1	us-gaap	Income Loss From Continuing Operations Per Basic Share IncomeLossFromContinuingOperationsPerBasicShare	-0.69
CY2014Q2	us-gaap	Income Loss From Continuing Operations Per Basic Share IncomeLossFromContinuingOperationsPerBasicShare	0.03
CY2014Q3	us-gaap	Income Loss From Continuing Operations Per Basic Share IncomeLossFromContinuingOperationsPerBasicShare	1.13
CY2014Q4	us-gaap	Income Loss From Continuing Operations Per Basic Share IncomeLossFromContinuingOperationsPerBasicShare	1.78
CY2014	us-gaap	Income Loss From Continuing Operations Per Basic Share IncomeLossFromContinuingOperationsPerBasicShare	2.24
CY2015Q1	us-gaap	Income Loss From Continuing Operations Per Basic Share IncomeLossFromContinuingOperationsPerBasicShare	1.15
CY2015Q2	us-gaap	Income Loss From Continuing Operations Per Basic Share IncomeLossFromContinuingOperationsPerBasicShare	0.26
CY2015Q3	us-gaap	Income Loss From Continuing Operations Per Basic Share IncomeLossFromContinuingOperationsPerBasicShare	-3.12
CY2015Q4	us-gaap	Income Loss From Continuing Operations Per Basic Share IncomeLossFromContinuingOperationsPerBasicShare	-0.48
CY2015	us-gaap	Income Loss From Continuing Operations Per Basic Share IncomeLossFromContinuingOperationsPerBasicShare	-3.10
CY2013	us-gaap	Income Loss From Continuing Operations Per Diluted Share IncomeLossFromContinuingOperationsPerDilutedShare	-3.13
CY2014Q1	us-gaap	Income Loss From Continuing Operations Per Diluted Share IncomeLossFromContinuingOperationsPerDilutedShare	-0.69
CY2014Q2	us-gaap	Income Loss From Continuing Operations Per Diluted Share IncomeLossFromContinuingOperationsPerDilutedShare	0.03
CY2014Q3	us-gaap	Income Loss From Continuing Operations Per Diluted Share IncomeLossFromContinuingOperationsPerDilutedShare	1.13
CY2014Q4	us-gaap	Income Loss From Continuing Operations Per Diluted Share IncomeLossFromContinuingOperationsPerDilutedShare	1.78
CY2014	us-gaap	Income Loss From Continuing Operations Per Diluted Share IncomeLossFromContinuingOperationsPerDilutedShare	2.24
CY2015Q1	us-gaap	Income Loss From Continuing Operations Per Diluted Share IncomeLossFromContinuingOperationsPerDilutedShare	1.15
CY2015Q2	us-gaap	Income Loss From Continuing Operations Per Diluted Share IncomeLossFromContinuingOperationsPerDilutedShare	0.26
CY2015Q3	us-gaap	Income Loss From Continuing Operations Per Diluted Share IncomeLossFromContinuingOperationsPerDilutedShare	-3.12
CY2015Q4	us-gaap	Income Loss From Continuing Operations Per Diluted Share IncomeLossFromContinuingOperationsPerDilutedShare	-0.48
CY2015	us-gaap	Income Loss From Continuing Operations Per Diluted Share IncomeLossFromContinuingOperationsPerDilutedShare	-3.10
CY2013	us-gaap	Income Loss From Discontinued Operations Net Of Tax IncomeLossFromDiscontinuedOperationsNetOfTax	32000000	USD
CY2014Q1	us-gaap	Income Loss From Discontinued Operations Net Of Tax IncomeLossFromDiscontinuedOperationsNetOfTax	-8000000	USD
CY2014Q2	us-gaap	Income Loss From Discontinued Operations Net Of Tax IncomeLossFromDiscontinuedOperationsNetOfTax	11000000	USD
CY2014Q3	us-gaap	Income Loss From Discontinued Operations Net Of Tax IncomeLossFromDiscontinuedOperationsNetOfTax	7000000	USD
CY2014Q4	us-gaap	Income Loss From Discontinued Operations Net Of Tax IncomeLossFromDiscontinuedOperationsNetOfTax	213000000	USD
CY2014	us-gaap	Income Loss From Discontinued Operations Net Of Tax IncomeLossFromDiscontinuedOperationsNetOfTax	223000000	USD
CY2015Q1	us-gaap	Income Loss From Discontinued Operations Net Of Tax IncomeLossFromDiscontinuedOperationsNetOfTax	0	USD
CY2015Q2	us-gaap	Income Loss From Discontinued Operations Net Of Tax IncomeLossFromDiscontinuedOperationsNetOfTax	0	USD
CY2015Q3	us-gaap	Income Loss From Discontinued Operations Net Of Tax IncomeLossFromDiscontinuedOperationsNetOfTax	0	USD
CY2015Q4	us-gaap	Income Loss From Discontinued Operations Net Of Tax IncomeLossFromDiscontinuedOperationsNetOfTax	0	USD
CY2015	us-gaap	Income Loss From Discontinued Operations Net Of Tax IncomeLossFromDiscontinuedOperationsNetOfTax	0	USD
CY2013	us-gaap	Income Loss From Discontinued Operations Net Of Tax Attributable To Reporting Entity IncomeLossFromDiscontinuedOperationsNetOfTaxAttributableToReportingEntity	32000000	USD
CY2014	us-gaap	Income Loss From Discontinued Operations Net Of Tax Attributable To Reporting Entity IncomeLossFromDiscontinuedOperationsNetOfTaxAttributableToReportingEntity	223000000	USD
CY2015	us-gaap	Income Loss From Discontinued Operations Net Of Tax Attributable To Reporting Entity IncomeLossFromDiscontinuedOperationsNetOfTaxAttributableToReportingEntity	0	USD
CY2013	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	-159000000	USD
CY2014	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	116000000	USD
CY2015	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	-27000000	USD
CY2013	us-gaap	Income Tax Reconciliation Income Tax Expense Benefit At Federal Statutory Income Tax Rate IncomeTaxReconciliationIncomeTaxExpenseBenefitAtFederalStatutoryIncomeTaxRate	-147000000	USD
CY2014	us-gaap	Income Tax Reconciliation Income Tax Expense Benefit At Federal Statutory Income Tax Rate IncomeTaxReconciliationIncomeTaxExpenseBenefitAtFederalStatutoryIncomeTaxRate	106000000	USD
CY2015	us-gaap	Income Tax Reconciliation Income Tax Expense Benefit At Federal Statutory Income Tax Rate IncomeTaxReconciliationIncomeTaxExpenseBenefitAtFederalStatutoryIncomeTaxRate	-129000000	USD
CY2013	us-gaap	Income Tax Reconciliation Other Adjustments IncomeTaxReconciliationOtherAdjustments	5000000	USD
CY2014	us-gaap	Income Tax Reconciliation Other Adjustments IncomeTaxReconciliationOtherAdjustments	-6000000	USD
CY2015	us-gaap	Income Tax Reconciliation Other Adjustments IncomeTaxReconciliationOtherAdjustments	6000000	USD
CY2013	us-gaap	Income Tax Reconciliation State And Local Income Taxes IncomeTaxReconciliationStateAndLocalIncomeTaxes	-24000000	USD
CY2014	us-gaap	Income Tax Reconciliation State And Local Income Taxes IncomeTaxReconciliationStateAndLocalIncomeTaxes	17000000	USD
CY2015	us-gaap	Income Tax Reconciliation State And Local Income Taxes IncomeTaxReconciliationStateAndLocalIncomeTaxes	-3000000	USD
CY2013	us-gaap	Income Tax Reconciliation Tax Credits IncomeTaxReconciliationTaxCredits	8000000	USD
CY2014	us-gaap	Income Tax Reconciliation Tax Credits IncomeTaxReconciliationTaxCredits	0	USD
CY2015	us-gaap	Income Tax Reconciliation Tax Credits IncomeTaxReconciliationTaxCredits	9000000	USD
CY2013	us-gaap	Income Taxes Paid Net IncomeTaxesPaidNet	189000000	USD
CY2014	us-gaap	Income Taxes Paid Net IncomeTaxesPaidNet	310000000	USD
CY2015	us-gaap	Income Taxes Paid Net IncomeTaxesPaidNet	5000000	USD
CY2013	us-gaap	Increase Decrease In Accounts Payable Trade IncreaseDecreaseInAccountsPayableTrade	-56000000	USD
CY2014	us-gaap	Increase Decrease In Accounts Payable Trade IncreaseDecreaseInAccountsPayableTrade	2000000	USD
CY2015	us-gaap	Increase Decrease In Accounts Payable Trade IncreaseDecreaseInAccountsPayableTrade	-147000000	USD
CY2013	us-gaap	Increase Decrease In Accrued Taxes Payable IncreaseDecreaseInAccruedTaxesPayable	-31000000	USD
CY2014	us-gaap	Increase Decrease In Accrued Taxes Payable IncreaseDecreaseInAccruedTaxesPayable	-3000000	USD
CY2015	us-gaap	Increase Decrease In Accrued Taxes Payable IncreaseDecreaseInAccruedTaxesPayable	-23000000	USD
CY2013	us-gaap	Increase Decrease In Customer Deposits IncreaseDecreaseInCustomerDeposits	-81000000	USD
CY2014	us-gaap	Increase Decrease In Customer Deposits IncreaseDecreaseInCustomerDeposits	-17000000	USD
CY2015	us-gaap	Increase Decrease In Customer Deposits IncreaseDecreaseInCustomerDeposits	63000000	USD
CY2013	us-gaap	Increase Decrease In Inventories IncreaseDecreaseInInventories	31000000	USD
CY2014	us-gaap	Increase Decrease In Inventories IncreaseDecreaseInInventories	97000000	USD
CY2015	us-gaap	Increase Decrease In Inventories IncreaseDecreaseInInventories	-12000000	USD
CY2013	us-gaap	Increase Decrease In Other Operating Assets IncreaseDecreaseInOtherOperatingAssets	4000000	USD
CY2014	us-gaap	Increase Decrease In Other Operating Assets IncreaseDecreaseInOtherOperatingAssets	-3000000	USD
CY2015	us-gaap	Increase Decrease In Other Operating Assets IncreaseDecreaseInOtherOperatingAssets	-4000000	USD
CY2013	us-gaap	Increase Decrease In Other Operating Capital Net IncreaseDecreaseInOtherOperatingCapitalNet	16000000	USD
CY2014	us-gaap	Increase Decrease In Other Operating Capital Net IncreaseDecreaseInOtherOperatingCapitalNet	40000000	USD
CY2015	us-gaap	Increase Decrease In Other Operating Capital Net IncreaseDecreaseInOtherOperatingCapitalNet	49000000	USD
CY2013	us-gaap	Increase Decrease In Other Operating Liabilities IncreaseDecreaseInOtherOperatingLiabilities	-30000000	USD
CY2014	us-gaap	Increase Decrease In Other Operating Liabilities IncreaseDecreaseInOtherOperatingLiabilities	0	USD
CY2015	us-gaap	Increase Decrease In Other Operating Liabilities IncreaseDecreaseInOtherOperatingLiabilities	-23000000	USD
CY2013	us-gaap	Increase Decrease In Prepaid Expense IncreaseDecreaseInPrepaidExpense	5000000	USD
CY2014	us-gaap	Increase Decrease In Prepaid Expense IncreaseDecreaseInPrepaidExpense	53000000	USD
CY2015	us-gaap	Increase Decrease In Prepaid Expense IncreaseDecreaseInPrepaidExpense	-31000000	USD
CY2013	us-gaap	Increase Decrease In Receivables IncreaseDecreaseInReceivables	-23000000	USD
CY2014	us-gaap	Increase Decrease In Receivables IncreaseDecreaseInReceivables	-17000000	USD
CY2015	us-gaap	Increase Decrease In Receivables IncreaseDecreaseInReceivables	-115000000	USD
CY2013	us-gaap	Increase Decrease In Restricted Cash IncreaseDecreaseInRestrictedCash	22000000	USD
CY2014	us-gaap	Increase Decrease In Restricted Cash IncreaseDecreaseInRestrictedCash	108000000	USD
CY2015	us-gaap	Increase Decrease In Restricted Cash IncreaseDecreaseInRestrictedCash	-87000000	USD
CY2014Q4	us-gaap	Intangible Assets Net Excluding Goodwill IntangibleAssetsNetExcludingGoodwill	257000000	USD
CY2015Q4	us-gaap	Intangible Assets Net Excluding Goodwill IntangibleAssetsNetExcludingGoodwill	310000000	USD
CY2013	us-gaap	Interest Costs Capitalized InterestCostsCapitalized	37000000	USD
CY2014	us-gaap	Interest Costs Capitalized InterestCostsCapitalized	23000000	USD
CY2015	us-gaap	Interest Costs Capitalized InterestCostsCapitalized	20000000	USD
CY2013	us-gaap	Interest Expense InterestExpense	159000000	USD
CY2014	us-gaap	Interest Expense InterestExpense	124000000	USD
CY2015	us-gaap	Interest Expense InterestExpense	211000000	USD
CY2013	us-gaap	Interest Paid Net InterestPaidNet	157000000	USD
CY2014	us-gaap	Interest Paid Net InterestPaidNet	122000000	USD
CY2015	us-gaap	Interest Paid Net InterestPaidNet	169000000	USD
CY2014Q4	us-gaap	Interest Payable Current InterestPayableCurrent	16000000	USD
CY2015Q4	us-gaap	Interest Payable Current InterestPayableCurrent	43000000	USD
CY2014Q4	us-gaap	Interest Receivable InterestReceivable	16000000	USD
CY2014Q4	us-gaap	Inventory Net InventoryNet	455000000	USD
CY2015Q4	us-gaap	Inventory Net InventoryNet	508000000	USD
CY2013	us-gaap	Lease And Rental Expense LeaseAndRentalExpense	55000000	USD
CY2014	us-gaap	Lease And Rental Expense LeaseAndRentalExpense	29000000	USD
CY2015	us-gaap	Lease And Rental Expense LeaseAndRentalExpense	14000000	USD
CY2014Q4	us-gaap	Liabilities And Stockholders Equity LiabilitiesAndStockholdersEquity	10760000000	USD
CY2015Q4	us-gaap	Liabilities And Stockholders Equity LiabilitiesAndStockholdersEquity	12826000000	USD
CY2014Q4	us-gaap	Liabilities Current LiabilitiesCurrent	2890000000	USD
CY2015Q4	us-gaap	Liabilities Current LiabilitiesCurrent	2088000000	USD
CY2014Q4	us-gaap	Liabilities Noncurrent LiabilitiesNoncurrent	2280000000	USD
CY2015Q4	us-gaap	Liabilities Noncurrent LiabilitiesNoncurrent	2631000000	USD
CY2014Q4	us-gaap	Liabilities Of Disposal Group Including Discontinued Operation Current LiabilitiesOfDisposalGroupIncludingDiscontinuedOperationCurrent	0	USD
CY2015Q4	us-gaap	Liabilities Of Disposal Group Including Discontinued Operation Current LiabilitiesOfDisposalGroupIncludingDiscontinuedOperationCurrent	33000000	USD
CY2015Q4	us-gaap	Line Of Credit LineOfCredit	608000000	USD
CY2015Q4	us-gaap	Line Of Credit Facility Maximum Borrowing Capacity LineOfCreditFacilityMaximumBorrowingCapacity	2010000000	USD
CY2015Q4	us-gaap	Line Of Credit Facility Remaining Borrowing Capacity LineOfCreditFacilityRemainingBorrowingCapacity	1208000000	USD
CY2014Q4	us-gaap	Long Term Debt LongTermDebt	2218000000	USD
CY2015Q4	us-gaap	Long Term Debt LongTermDebt	4203000000	USD
CY2014Q4	us-gaap	Long Term Debt Current LongTermDebtCurrent	535000000	USD
CY2015Q4	us-gaap	Long Term Debt Current LongTermDebtCurrent	399000000	USD
CY2015Q4	us-gaap	Long Term Debt Maturities Repayments Of Principal After Year Five LongTermDebtMaturitiesRepaymentsOfPrincipalAfterYearFive	1980000000	USD
CY2015Q4	us-gaap	Long Term Debt Maturities Repayments Of Principal In Next Twelve Months LongTermDebtMaturitiesRepaymentsOfPrincipalInNextTwelveMonths	396000000	USD
CY2015Q4	us-gaap	Long Term Debt Maturities Repayments Of Principal In Year Five LongTermDebtMaturitiesRepaymentsOfPrincipalInYearFive	179000000	USD
CY2015Q4	us-gaap	Long Term Debt Maturities Repayments Of Principal In Year Four LongTermDebtMaturitiesRepaymentsOfPrincipalInYearFour	1244000000	USD
CY2015Q4	us-gaap	Long Term Debt Maturities Repayments Of Principal In Year Three LongTermDebtMaturitiesRepaymentsOfPrincipalInYearThree	424000000	USD
CY2015Q4	us-gaap	Long Term Debt Maturities Repayments Of Principal In Year Two LongTermDebtMaturitiesRepaymentsOfPrincipalInYearTwo	5000000	USD
CY2014Q4	us-gaap	Long Term Debt Noncurrent LongTermDebtNoncurrent	1683000000	USD
CY2015Q4	us-gaap	Long Term Debt Noncurrent LongTermDebtNoncurrent	3804000000	USD
CY2014Q4	us-gaap	Long Term Investments LongTermInvestments	980000000	USD
CY2015Q4	us-gaap	Long Term Investments LongTermInvestments	976000000	USD
CY2013	us-gaap	Loss On Contract Termination LossOnContractTermination	697000000	USD
CY2013	us-gaap	Multiemployer Plan Period Contributions MultiemployerPlanPeriodContributions	68000000	USD
CY2014	us-gaap	Multiemployer Plan Period Contributions MultiemployerPlanPeriodContributions	73000000	USD
CY2015	us-gaap	Multiemployer Plan Period Contributions MultiemployerPlanPeriodContributions	60000000	USD
CY2013	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	47000000	USD
CY2014	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	-846000000	USD
CY2015	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	-64000000	USD
CY2013	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-631000000	USD
CY2014	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	497000000	USD
CY2013	us-gaap	Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Tax OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodTax	72000000	USD
CY2015	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-915000000	USD
CY2013	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	410000000	USD
CY2014	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	462000000	USD
CY2015	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	768000000	USD
CY2013	us-gaap	Net Income Loss NetIncomeLoss	-230000000	USD
CY2014Q1	us-gaap	Net Income Loss NetIncomeLoss	-66000000	USD
CY2014Q2	us-gaap	Net Income Loss NetIncomeLoss	13000000	USD
CY2014Q3	us-gaap	Net Income Loss NetIncomeLoss	101000000	USD
CY2014Q4	us-gaap	Net Income Loss NetIncomeLoss	362000000	USD
CY2014	us-gaap	Net Income Loss NetIncomeLoss	410000000	USD
CY2015Q1	us-gaap	Net Income Loss NetIncomeLoss	96000000	USD
CY2015Q2	us-gaap	Net Income Loss NetIncomeLoss	26000000	USD
CY2015Q3	us-gaap	Net Income Loss NetIncomeLoss	-401000000	USD
CY2015Q4	us-gaap	Net Income Loss NetIncomeLoss	-62000000	USD
CY2015	us-gaap	Net Income Loss NetIncomeLoss	-341000000	USD
CY2013	us-gaap	Net Income Loss Attributable To Noncontrolling Interest NetIncomeLossAttributableToNoncontrollingInterest	1000000	USD
CY2014	us-gaap	Net Income Loss Attributable To Noncontrolling Interest NetIncomeLossAttributableToNoncontrollingInterest	0	USD
CY2015	us-gaap	Net Income Loss Attributable To Noncontrolling Interest NetIncomeLossAttributableToNoncontrollingInterest	0	USD
CY2014Q4	us-gaap	Nontrade Receivables Current NontradeReceivablesCurrent	103000000	USD
CY2015Q4	us-gaap	Nontrade Receivables Current NontradeReceivablesCurrent	62000000	USD
CY2015Q4	us-gaap	Number Of Reportable Segments NumberOfReportableSegments	2	segment
	us-gaap	Number Of Reportable Segments NumberOfReportableSegments	2	segment
CY2013	us-gaap	Operating Income Loss OperatingIncomeLoss	-293000000	USD
CY2014Q1	us-gaap	Operating Income Loss OperatingIncomeLoss	-79000000	USD
CY2014Q2	us-gaap	Operating Income Loss OperatingIncomeLoss	16000000	USD
CY2014Q3	us-gaap	Operating Income Loss OperatingIncomeLoss	189000000	USD
CY2014Q4	us-gaap	Operating Income Loss OperatingIncomeLoss	271000000	USD
CY2014	us-gaap	Operating Income Loss OperatingIncomeLoss	397000000	USD
CY2015Q1	us-gaap	Operating Income Loss OperatingIncomeLoss	178000000	USD
CY2015Q2	us-gaap	Operating Income Loss OperatingIncomeLoss	35000000	USD
CY2015Q3	us-gaap	Operating Income Loss OperatingIncomeLoss	-346000000	USD
CY2015Q4	us-gaap	Operating Income Loss OperatingIncomeLoss	94000000	USD
CY2015	us-gaap	Operating Income Loss OperatingIncomeLoss	-39000000	USD
CY2015Q4	us-gaap	Operating Leases Future Minimum Payments Due OperatingLeasesFutureMinimumPaymentsDue	81000000	USD
CY2015Q4	us-gaap	Operating Leases Future Minimum Payments Due Current OperatingLeasesFutureMinimumPaymentsDueCurrent	19000000	USD
CY2015Q4	us-gaap	Operating Leases Future Minimum Payments Due In Five Years OperatingLeasesFutureMinimumPaymentsDueInFiveYears	5000000	USD
CY2015Q4	us-gaap	Operating Leases Future Minimum Payments Due In Four Years OperatingLeasesFutureMinimumPaymentsDueInFourYears	5000000	USD
CY2015Q4	us-gaap	Operating Leases Future Minimum Payments Due In Three Years OperatingLeasesFutureMinimumPaymentsDueInThreeYears	8000000	USD
CY2015Q4	us-gaap	Operating Leases Future Minimum Payments Due In Two Years OperatingLeasesFutureMinimumPaymentsDueInTwoYears	18000000	USD
CY2015Q4	us-gaap	Operating Leases Future Minimum Payments Due Thereafter OperatingLeasesFutureMinimumPaymentsDueThereafter	26000000	USD
CY2014Q4	us-gaap	Other Assets Current OtherAssetsCurrent	26000000	USD
CY2015Q4	us-gaap	Other Assets Current OtherAssetsCurrent	12000000	USD
CY2014Q4	us-gaap	Other Assets Noncurrent OtherAssetsNoncurrent	75000000	USD
CY2015Q4	us-gaap	Other Assets Noncurrent OtherAssetsNoncurrent	60000000	USD
CY2014	us-gaap	Pension Contributions PensionContributions	35000000	USD
CY2015	us-gaap	Pension Contributions PensionContributions	74000000	USD
CY2015Q4	us-gaap	Preferred Stock Shares Authorized PreferredStockSharesAuthorized	100000000	shares
CY2015Q4	us-gaap	Preferred Stock Shares Issued PreferredStockSharesIssued	0	shares
CY2013	us-gaap	Other Comprehensive Income Defined Benefit Plan Net Prior Service Costs Credit Arising During Period Net Of Tax OtherComprehensiveIncomeDefinedBenefitPlanNetPriorServiceCostsCreditArisingDuringPeriodNetOfTax	-2000000	USD
CY2014	us-gaap	Other Comprehensive Income Defined Benefit Plan Net Prior Service Costs Credit Arising During Period Net Of Tax OtherComprehensiveIncomeDefinedBenefitPlanNetPriorServiceCostsCreditArisingDuringPeriodNetOfTax	-8000000	USD
CY2015	us-gaap	Other Comprehensive Income Defined Benefit Plan Net Prior Service Costs Credit Arising During Period Net Of Tax OtherComprehensiveIncomeDefinedBenefitPlanNetPriorServiceCostsCreditArisingDuringPeriodNetOfTax	3000000	USD
CY2013	us-gaap	Other Comprehensive Income Defined Benefit Plans Net Unamortized Gain Loss Arising During Period Net Of Tax OtherComprehensiveIncomeDefinedBenefitPlansNetUnamortizedGainLossArisingDuringPeriodNetOfTax	71000000	USD
CY2014	us-gaap	Other Comprehensive Income Defined Benefit Plans Net Unamortized Gain Loss Arising During Period Net Of Tax OtherComprehensiveIncomeDefinedBenefitPlansNetUnamortizedGainLossArisingDuringPeriodNetOfTax	-120000000	USD
CY2015	us-gaap	Other Comprehensive Income Defined Benefit Plans Net Unamortized Gain Loss Arising During Period Net Of Tax OtherComprehensiveIncomeDefinedBenefitPlansNetUnamortizedGainLossArisingDuringPeriodNetOfTax	46000000	USD
CY2013	us-gaap	Other Comprehensive Income Defined Benefit Plans Net Unamortized Gain Loss Arising During Period Tax OtherComprehensiveIncomeDefinedBenefitPlansNetUnamortizedGainLossArisingDuringPeriodTax	49000000	USD
CY2014	us-gaap	Other Comprehensive Income Defined Benefit Plans Net Unamortized Gain Loss Arising During Period Tax OtherComprehensiveIncomeDefinedBenefitPlansNetUnamortizedGainLossArisingDuringPeriodTax	-83000000	USD
CY2015	us-gaap	Other Comprehensive Income Defined Benefit Plans Net Unamortized Gain Loss Arising During Period Tax OtherComprehensiveIncomeDefinedBenefitPlansNetUnamortizedGainLossArisingDuringPeriodTax	30000000	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	4000000	USD
CY2014	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	3000000	USD
CY2015	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	-1000000	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	3000000	USD
CY2014	us-gaap	Other Comprehensive Income Loss Amortization Adjustment From Aoci Pension And Other Postretirement Benefit Plans For Net Prior Service Cost Credit Tax OtherComprehensiveIncomeLossAmortizationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansForNetPriorServiceCostCreditTax	1000000	USD
CY2015	us-gaap	Other Comprehensive Income Loss Amortization Adjustment From Aoci Pension And Other Postretirement Benefit Plans For Net Prior Service Cost Credit Tax OtherComprehensiveIncomeLossAmortizationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansForNetPriorServiceCostCreditTax	0	USD
CY2013	us-gaap	Other Comprehensive Income Loss Before Reclassifications Net Of Tax OtherComprehensiveIncomeLossBeforeReclassificationsNetOfTax	140000000	USD
CY2014	us-gaap	Other Comprehensive Income Loss Before Reclassifications Net Of Tax OtherComprehensiveIncomeLossBeforeReclassificationsNetOfTax	-77000000	USD
CY2015	us-gaap	Other Comprehensive Income Loss Before Reclassifications Net Of Tax OtherComprehensiveIncomeLossBeforeReclassificationsNetOfTax	37000000	USD
CY2013	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	29000000	USD
CY2014	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	-100000000	USD
CY2015	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	-3000000	USD
CY2013	us-gaap	Other Comprehensive Income Loss Pension And Other Postretirement Benefit Plans Benefit Plan Improvement Tax Effect OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansBenefitPlanImprovementTaxEffect	-1000000	USD
CY2014	us-gaap	Other Comprehensive Income Loss Pension And Other Postretirement Benefit Plans Benefit Plan Improvement Tax Effect OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansBenefitPlanImprovementTaxEffect	-6000000	USD
CY2015	us-gaap	Other Comprehensive Income Loss Pension And Other Postretirement Benefit Plans Benefit Plan Improvement Tax Effect OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansBenefitPlanImprovementTaxEffect	1000000	USD
CY2013	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci For Sale Of Securities Net Of Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesNetOfTax	6000000	USD
CY2014	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci For Sale Of Securities Net Of Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesNetOfTax	6000000	USD
CY2015	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci For Sale Of Securities Net Of Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesNetOfTax	2000000	USD
CY2013	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci For Sale Of Securities Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesTax	4000000	USD
CY2014	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci For Sale Of Securities Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesTax	7000000	USD
CY2015	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci For Sale Of Securities Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesTax	2000000	USD
CY2013	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci On Derivatives Net Of Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIOnDerivativesNetOfTax	123000000	USD
CY2014	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci On Derivatives Net Of Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIOnDerivativesNetOfTax	25000000	USD
CY2015	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci On Derivatives Net Of Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIOnDerivativesNetOfTax	19000000	USD
CY2013	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci On Derivatives Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIOnDerivativesTax	84000000	USD
CY2014	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci On Derivatives Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIOnDerivativesTax	17000000	USD
CY2015	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci On Derivatives Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIOnDerivativesTax	12000000	USD
CY2013	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci Pension And Other Postretirement Benefit Plans For Net Gain Loss Net Of Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansForNetGainLossNetOfTax	-14000000	USD
CY2014	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci Pension And Other Postretirement Benefit Plans For Net Gain Loss Net Of Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansForNetGainLossNetOfTax	-5000000	USD
CY2015	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci Pension And Other Postretirement Benefit Plans For Net Gain Loss Net Of Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansForNetGainLossNetOfTax	18000000	USD
CY2013	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci Pension And Other Postretirement Benefit Plans For Net Gain Loss Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansForNetGainLossTax	-10000000	USD
CY2014	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci Pension And Other Postretirement Benefit Plans For Net Gain Loss Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansForNetGainLossTax	-4000000	USD
CY2015	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci Pension And Other Postretirement Benefit Plans For Net Gain Loss Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansForNetGainLossTax	11000000	USD
CY2013	us-gaap	Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Net Of Tax OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodNetOfTax	67000000	USD
CY2014	us-gaap	Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Net Of Tax OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodNetOfTax	35000000	USD
CY2015	us-gaap	Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Net Of Tax OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodNetOfTax	-6000000	USD
CY2014	us-gaap	Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Tax OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodTax	40000000	USD
CY2015	us-gaap	Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Tax OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodTax	-5000000	USD
CY2013	us-gaap	Other Cost And Expense Operating OtherCostAndExpenseOperating	512000000	USD
CY2014	us-gaap	Other Cost And Expense Operating OtherCostAndExpenseOperating	573000000	USD
CY2015	us-gaap	Other Cost And Expense Operating OtherCostAndExpenseOperating	520000000	USD
CY2013	us-gaap	Other Cost Of Services OtherCostOfServices	961000000	USD
CY2014	us-gaap	Other Cost Of Services OtherCostOfServices	1007000000	USD
CY2015	us-gaap	Other Cost Of Services OtherCostOfServices	1052000000	USD
CY2014Q4	us-gaap	Other Investments OtherInvestments	30000000	USD
CY2015Q4	us-gaap	Other Investments OtherInvestments	25000000	USD
CY2014Q4	us-gaap	Other Liabilities Current OtherLiabilitiesCurrent	246000000	USD
CY2015Q4	us-gaap	Other Liabilities Current OtherLiabilitiesCurrent	267000000	USD
CY2014Q4	us-gaap	Other Liabilities Noncurrent OtherLiabilitiesNoncurrent	123000000	USD
CY2015Q4	us-gaap	Other Liabilities Noncurrent OtherLiabilitiesNoncurrent	91000000	USD
CY2013	us-gaap	Other Noncash Income Expense OtherNoncashIncomeExpense	-2000000	USD
CY2014	us-gaap	Other Noncash Income Expense OtherNoncashIncomeExpense	-36000000	USD
CY2015	us-gaap	Other Noncash Income Expense OtherNoncashIncomeExpense	-46000000	USD
CY2013	us-gaap	Other Nonoperating Income Expense OtherNonoperatingIncomeExpense	32000000	USD
CY2014	us-gaap	Other Nonoperating Income Expense OtherNonoperatingIncomeExpense	30000000	USD
CY2015	us-gaap	Other Nonoperating Income Expense OtherNonoperatingIncomeExpense	-118000000	USD
CY2013	us-gaap	Other Sales Revenue Net OtherSalesRevenueNet	527000000	USD
CY2014	us-gaap	Other Sales Revenue Net OtherSalesRevenueNet	601000000	USD
CY2015	us-gaap	Other Sales Revenue Net OtherSalesRevenueNet	544000000	USD
CY2013	us-gaap	Payments For Proceeds From Other Investing Activities PaymentsForProceedsFromOtherInvestingActivities	-28000000	USD
CY2014	us-gaap	Payments For Proceeds From Other Investing Activities PaymentsForProceedsFromOtherInvestingActivities	-19000000	USD
CY2015	us-gaap	Payments For Proceeds From Other Investing Activities PaymentsForProceedsFromOtherInvestingActivities	-22000000	USD
CY2013	us-gaap	Payments To Acquire Available For Sale Securities PaymentsToAcquireAvailableForSaleSecurities	159000000	USD
CY2014	us-gaap	Payments To Acquire Available For Sale Securities PaymentsToAcquireAvailableForSaleSecurities	170000000	USD
CY2015	us-gaap	Payments To Acquire Available For Sale Securities PaymentsToAcquireAvailableForSaleSecurities	196000000	USD
CY2013	us-gaap	Payments To Acquire Businesses Gross PaymentsToAcquireBusinessesGross	0	USD
CY2014	us-gaap	Payments To Acquire Businesses Gross PaymentsToAcquireBusinessesGross	0	USD
CY2015	us-gaap	Payments To Acquire Businesses Gross PaymentsToAcquireBusinessesGross	603000000	USD
CY2013	us-gaap	Payments To Acquire Intangible Assets PaymentsToAcquireIntangibleAssets	42000000	USD
CY2014	us-gaap	Payments To Acquire Intangible Assets PaymentsToAcquireIntangibleAssets	46000000	USD
CY2015	us-gaap	Payments To Acquire Intangible Assets PaymentsToAcquireIntangibleAssets	70000000	USD
CY2013	us-gaap	Payments To Acquire Productive Assets PaymentsToAcquireProductiveAssets	568000000	USD
CY2014	us-gaap	Payments To Acquire Productive Assets PaymentsToAcquireProductiveAssets	431000000	USD
CY2015	us-gaap	Payments To Acquire Productive Assets PaymentsToAcquireProductiveAssets	464000000	USD
CY2013	us-gaap	Payments To Acquire Property Plant And Equipment PaymentsToAcquirePropertyPlantAndEquipment	583000000	USD
CY2014	us-gaap	Payments To Acquire Property Plant And Equipment PaymentsToAcquirePropertyPlantAndEquipment	416000000	USD
CY2015	us-gaap	Payments To Acquire Property Plant And Equipment PaymentsToAcquirePropertyPlantAndEquipment	451000000	USD
CY2013	us-gaap	Pension And Other Postretirement Benefit Expense PensionAndOtherPostretirementBenefitExpense	51000000	USD
CY2014	us-gaap	Pension And Other Postretirement Benefit Expense PensionAndOtherPostretirementBenefitExpense	42000000	USD
CY2015	us-gaap	Pension And Other Postretirement Benefit Expense PensionAndOtherPostretirementBenefitExpense	50000000	USD
CY2013	us-gaap	Pension Contributions PensionContributions	113000000	USD
CY2015Q4	us-gaap	Preferred Stock Shares Outstanding PreferredStockSharesOutstanding	0	shares
CY2014Q4	us-gaap	Prepaid Expense Current PrepaidExpenseCurrent	70000000	USD
CY2015Q4	us-gaap	Prepaid Expense Current PrepaidExpenseCurrent	52000000	USD
CY2015Q4	us-gaap	Price Risk Cash Flow Hedge Unrealized Gain Loss To Be Reclassified During Next12 Months PriceRiskCashFlowHedgeUnrealizedGainLossToBeReclassifiedDuringNext12Months	12000000	USD
CY2013	us-gaap	Proceeds From Contributions From Affiliates ProceedsFromContributionsFromAffiliates	1577000000	USD
CY2014	us-gaap	Proceeds From Contributions From Affiliates ProceedsFromContributionsFromAffiliates	739000000	USD
CY2015	us-gaap	Proceeds From Contributions From Affiliates ProceedsFromContributionsFromAffiliates	82000000	USD
CY2013	us-gaap	Proceeds From Divestiture Of Businesses ProceedsFromDivestitureOfBusinesses	0	USD
CY2014	us-gaap	Proceeds From Divestiture Of Businesses ProceedsFromDivestitureOfBusinesses	0	USD
CY2015	us-gaap	Proceeds From Divestiture Of Businesses ProceedsFromDivestitureOfBusinesses	116000000	USD
CY2013	us-gaap	Proceeds From Issuance Of Long Term Debt ProceedsFromIssuanceOfLongTermDebt	0	USD
CY2014	us-gaap	Proceeds From Issuance Of Long Term Debt ProceedsFromIssuanceOfLongTermDebt	0	USD
CY2015	us-gaap	Proceeds From Issuance Of Long Term Debt ProceedsFromIssuanceOfLongTermDebt	600000000	USD
CY2013	us-gaap	Proceeds From Payments For Other Financing Activities ProceedsFromPaymentsForOtherFinancingActivities	-19000000	USD
CY2014	us-gaap	Proceeds From Payments For Other Financing Activities ProceedsFromPaymentsForOtherFinancingActivities	0	USD
CY2015	us-gaap	Proceeds From Payments For Other Financing Activities ProceedsFromPaymentsForOtherFinancingActivities	-32000000	USD
CY2013	us-gaap	Proceeds From Repayments Of Short Term Debt ProceedsFromRepaymentsOfShortTermDebt	-356000000	USD
CY2014	us-gaap	Proceeds From Repayments Of Short Term Debt ProceedsFromRepaymentsOfShortTermDebt	630000000	USD
CY2015	us-gaap	Proceeds From Repayments Of Short Term Debt ProceedsFromRepaymentsOfShortTermDebt	-162000000	USD
CY2013	us-gaap	Proceeds From Sale Of Available For Sale Securities ProceedsFromSaleOfAvailableForSaleSecurities	144000000	USD
CY2014	us-gaap	Proceeds From Sale Of Available For Sale Securities ProceedsFromSaleOfAvailableForSaleSecurities	154000000	USD
CY2015	us-gaap	Proceeds From Sale Of Available For Sale Securities ProceedsFromSaleOfAvailableForSaleSecurities	180000000	USD
CY2013	us-gaap	Proceeds From Sale Of Productive Assets ProceedsFromSaleOfProductiveAssets	0	USD
CY2014	us-gaap	Proceeds From Sale Of Productive Assets ProceedsFromSaleOfProductiveAssets	900000000	USD
CY2015	us-gaap	Proceeds From Sale Of Productive Assets ProceedsFromSaleOfProductiveAssets	0	USD
	us-gaap	Profit Loss ProfitLoss	32000000	USD
	us-gaap	Profit Loss ProfitLoss	-373000000	USD
CY2013	us-gaap	Profit Loss ProfitLoss	-229000000	USD
CY2014	us-gaap	Profit Loss ProfitLoss	410000000	USD
CY2015	us-gaap	Profit Loss ProfitLoss	-341000000	USD
CY2014Q4	us-gaap	Property Plant And Equipment Net PropertyPlantAndEquipmentNet	6436000000	USD
CY2015Q4	us-gaap	Property Plant And Equipment Net PropertyPlantAndEquipmentNet	8587000000	USD
CY2014Q4	us-gaap	Property Plant And Equipment Other PropertyPlantAndEquipmentOther	293000000	USD
CY2015Q4	us-gaap	Property Plant And Equipment Other PropertyPlantAndEquipmentOther	342000000	USD
CY2014Q4	us-gaap	Public Utilities Inventory PublicUtilitiesInventory	455000000	USD
CY2015Q4	us-gaap	Public Utilities Inventory PublicUtilitiesInventory	508000000	USD
CY2014	us-gaap	Public Utilities Property Plant And Equipment Disclosure Of Composite Depreciation Rate For Plants In Service PublicUtilitiesPropertyPlantAndEquipmentDisclosureOfCompositeDepreciationRateForPlantsInService	0.0328
CY2015	us-gaap	Public Utilities Property Plant And Equipment Disclosure Of Composite Depreciation Rate For Plants In Service PublicUtilitiesPropertyPlantAndEquipmentDisclosureOfCompositeDepreciationRateForPlantsInService	0.0318
CY2013	us-gaap	Reclassification From Accumulated Other Comprehensive Income Current Period Net Of Tax ReclassificationFromAccumulatedOtherComprehensiveIncomeCurrentPeriodNetOfTax	111000000	USD
CY2014	us-gaap	Reclassification From Accumulated Other Comprehensive Income Current Period Net Of Tax ReclassificationFromAccumulatedOtherComprehensiveIncomeCurrentPeriodNetOfTax	23000000	USD
CY2015	us-gaap	Reclassification From Accumulated Other Comprehensive Income Current Period Net Of Tax ReclassificationFromAccumulatedOtherComprehensiveIncomeCurrentPeriodNetOfTax	40000000	USD
CY2013	us-gaap	Regulated And Unregulated Operating Revenue RegulatedAndUnregulatedOperatingRevenue	4495000000	USD
CY2014Q1	us-gaap	Regulated And Unregulated Operating Revenue RegulatedAndUnregulatedOperatingRevenue	946000000	USD
CY2014Q2	us-gaap	Regulated And Unregulated Operating Revenue RegulatedAndUnregulatedOperatingRevenue	1090000000	USD
CY2014Q3	us-gaap	Regulated And Unregulated Operating Revenue RegulatedAndUnregulatedOperatingRevenue	1192000000	USD
CY2014Q4	us-gaap	Regulated And Unregulated Operating Revenue RegulatedAndUnregulatedOperatingRevenue	1353000000	USD
CY2014	us-gaap	Regulated And Unregulated Operating Revenue RegulatedAndUnregulatedOperatingRevenue	4581000000	USD
CY2015Q1	us-gaap	Regulated And Unregulated Operating Revenue RegulatedAndUnregulatedOperatingRevenue	1091000000	USD
CY2015Q2	us-gaap	Regulated And Unregulated Operating Revenue RegulatedAndUnregulatedOperatingRevenue	948000000	USD
CY2015Q3	us-gaap	Regulated And Unregulated Operating Revenue RegulatedAndUnregulatedOperatingRevenue	1320000000	USD
CY2015Q4	us-gaap	Regulated And Unregulated Operating Revenue RegulatedAndUnregulatedOperatingRevenue	1122000000	USD
CY2015	us-gaap	Regulated And Unregulated Operating Revenue RegulatedAndUnregulatedOperatingRevenue	4481000000	USD
CY2013	us-gaap	Repayments Of Long Term Debt RepaymentsOfLongTermDebt	747000000	USD
CY2014	us-gaap	Repayments Of Long Term Debt RepaymentsOfLongTermDebt	309000000	USD
CY2015	us-gaap	Repayments Of Long Term Debt RepaymentsOfLongTermDebt	335000000	USD
CY2014Q4	us-gaap	Restricted Cash And Cash Equivalents RestrictedCashAndCashEquivalents	193000000	USD
CY2015Q4	us-gaap	Restricted Cash And Cash Equivalents RestrictedCashAndCashEquivalents	106000000	USD
CY2014Q4	us-gaap	Restricted Cash And Cash Equivalents At Carrying Value RestrictedCashAndCashEquivalentsAtCarryingValue	176000000	USD
CY2015Q4	us-gaap	Restricted Cash And Cash Equivalents At Carrying Value RestrictedCashAndCashEquivalentsAtCarryingValue	106000000	USD
CY2014Q4	us-gaap	Retained Earnings Accumulated Deficit RetainedEarningsAccumulatedDeficit	0	USD
CY2015Q4	us-gaap	Retained Earnings Accumulated Deficit RetainedEarningsAccumulatedDeficit	-373000000	USD
CY2013	us-gaap	Revenue From Related Parties RevenueFromRelatedParties	51000000	USD
CY2014	us-gaap	Revenue From Related Parties RevenueFromRelatedParties	84000000	USD
CY2015	us-gaap	Revenue From Related Parties RevenueFromRelatedParties	14000000	USD
CY2015Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Number Of Shares Authorized ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAuthorized	5630000	shares
CY2014Q4	us-gaap	Short Term Borrowings ShortTermBorrowings	630000000	USD
CY2015Q4	us-gaap	Short Term Borrowings ShortTermBorrowings	608000000	USD
CY2013	us-gaap	State And Local Income Tax Expense Benefit Continuing Operations StateAndLocalIncomeTaxExpenseBenefitContinuingOperations	-11000000	USD
CY2014	us-gaap	State And Local Income Tax Expense Benefit Continuing Operations StateAndLocalIncomeTaxExpenseBenefitContinuingOperations	24000000	USD
CY2015	us-gaap	State And Local Income Tax Expense Benefit Continuing Operations StateAndLocalIncomeTaxExpenseBenefitContinuingOperations	-37000000	USD
CY2015	us-gaap	Stock Issued During Period Value Acquisitions StockIssuedDuringPeriodValueAcquisitions	902000000	USD
CY2014Q4	us-gaap	Stockholders Equity StockholdersEquity	3907000000	USD
CY2015Q4	us-gaap	Stockholders Equity StockholdersEquity	4303000000	USD
CY2012Q4	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	3848000000	USD
CY2013Q4	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	4798000000	USD
CY2014Q4	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	3907000000	USD
CY2015Q4	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	4303000000	USD
CY2015	us-gaap	Stockholders Equity Note Spinoff Transaction StockholdersEquityNoteSpinoffTransaction	0	USD
CY2014Q4	us-gaap	Taxes Payable Current TaxesPayableCurrent	28000000	USD
CY2015Q4	us-gaap	Taxes Payable Current TaxesPayableCurrent	16000000	USD
CY2014Q4	us-gaap	Unbilled Contracts Receivable UnbilledContractsReceivable	218000000	USD
CY2015Q4	us-gaap	Unbilled Contracts Receivable UnbilledContractsReceivable	160000000	USD
CY2013	us-gaap	Unrealized Gain Loss On Derivatives UnrealizedGainLossOnDerivatives	-171000000	USD
CY2014	us-gaap	Unrealized Gain Loss On Derivatives UnrealizedGainLossOnDerivatives	-4000000	USD
CY2015	us-gaap	Unrealized Gain Loss On Derivatives UnrealizedGainLossOnDerivatives	119000000	USD
CY2013Q4	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	15000000	USD
CY2014Q4	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	15000000	USD
CY2015Q4	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	31000000	USD
CY2014	us-gaap	Unrecognized Tax Benefits Decreases Resulting From Prior Period Tax Positions UnrecognizedTaxBenefitsDecreasesResultingFromPriorPeriodTaxPositions	0	USD
CY2015	us-gaap	Unrecognized Tax Benefits Decreases Resulting From Prior Period Tax Positions UnrecognizedTaxBenefitsDecreasesResultingFromPriorPeriodTaxPositions	15000000	USD
CY2014	us-gaap	Unrecognized Tax Benefits Increases Resulting From Prior Period Tax Positions UnrecognizedTaxBenefitsIncreasesResultingFromPriorPeriodTaxPositions	0	USD
CY2015	us-gaap	Unrecognized Tax Benefits Increases Resulting From Prior Period Tax Positions UnrecognizedTaxBenefitsIncreasesResultingFromPriorPeriodTaxPositions	31000000	USD
CY2014Q4	us-gaap	Unrecognized Tax Benefits That Would Impact Effective Tax Rate UnrecognizedTaxBenefitsThatWouldImpactEffectiveTaxRate	14000000	USD
CY2015Q4	us-gaap	Unrecognized Tax Benefits That Would Impact Effective Tax Rate UnrecognizedTaxBenefitsThatWouldImpactEffectiveTaxRate	30000000	USD
CY2015	us-gaap	Unregulated Operating Revenue UnregulatedOperatingRevenue	1095000000	USD
CY2013	us-gaap	Unregulated Operating Revenue UnregulatedOperatingRevenue	1027000000	USD
CY2014	us-gaap	Unregulated Operating Revenue UnregulatedOperatingRevenue	1243000000	USD
CY2013	us-gaap	Utilities Operating Expense UtilitiesOperatingExpense	4788000000	USD
CY2014	us-gaap	Utilities Operating Expense UtilitiesOperatingExpense	4184000000	USD
CY2015	us-gaap	Utilities Operating Expense UtilitiesOperatingExpense	4520000000	USD
CY2013	us-gaap	Utilities Operating Expense Depreciation And Amortization UtilitiesOperatingExpenseDepreciationAndAmortization	299000000	USD
CY2014	us-gaap	Utilities Operating Expense Depreciation And Amortization UtilitiesOperatingExpenseDepreciationAndAmortization	297000000	USD
CY2015	us-gaap	Utilities Operating Expense Depreciation And Amortization UtilitiesOperatingExpenseDepreciationAndAmortization	356000000	USD
CY2013	us-gaap	Utilities Operating Expense Taxes UtilitiesOperatingExpenseTaxes	53000000	USD
CY2014	us-gaap	Utilities Operating Expense Taxes UtilitiesOperatingExpenseTaxes	57000000	USD
CY2015	us-gaap	Utilities Operating Expense Taxes UtilitiesOperatingExpenseTaxes	65000000	USD
CY2013	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	83524000	shares
CY2014	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	83524000	shares
CY2015	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	109898000	shares
CY2013	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	83524000	shares
CY2014	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	83524000	shares
CY2015	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	109898000	shares
CY2015	us-gaap	Write Off Of Deferred Debt Issuance Cost WriteOffOfDeferredDebtIssuanceCost	12000000	USD
CY2015	us-gaap	Comparability Of Prior Year Financial Data ComparabilityOfPriorYearFinancialData	<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:Arial;font-size:10pt;text-decoration:underline;">Reclassifications</font></div><div style="line-height:120%;text-align:left;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;">Certain amounts in the prior period financial statements have been reclassified to conform to current period's presentation, including the change in presentation discussed below. The reclassifications did not affect operating income, net income or equity. </font><font style="font-family:inherit;font-size:10pt;"> </font></div><div style="line-height:120%;text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br clear="none"/></font></div><div style="line-height:120%;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">In these financial statements, revenue and expense from derivatives is recorded based on Talen Energy's economic hedging strategy. For example, all purchases and sales associated with economic hedging of the sale of energy using contracts accounted for as derivatives are recorded within "Operating Revenues" and all purchases and sales associated with economic hedging of the procurement of fuel or purchasing energy using contracts accounted for as derivatives are recorded as "Operating Expenses" on the Statements of Income. Prior to 2015, Talen Energy classified all non-trading commodity hedge transactions as revenue or expense based upon whether each specific transaction was a sale or purchase, which in certain instances, created losses within revenue and gains within expense. As a result of this change in presentation, there was an equal and offsetting increase of </font><font style="font-family:inherit;font-size:10pt;">$845 million</font><font style="font-family:inherit;font-size:10pt;"> in 2014 and a decrease of </font><font style="font-family:inherit;font-size:10pt;">$19 million</font><font style="font-family:inherit;font-size:10pt;"> in 2013 primarily in "Wholesale energy" and "Energy purchases" on the Statements of Income. </font><font style="font-family:inherit;font-size:10pt;"> </font></div><div style="line-height:120%;text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br clear="none"/></font></div></div>
CY2015	us-gaap	Description Of New Accounting Pronouncements Not Yet Adopted DescriptionOfNewAccountingPronouncementsNotYetAdopted	<div style="font-family:Times New Roman;font-size:10pt;"><div style="line-height:120%;font-size:10pt;"><font style="font-family:Arial;font-size:10pt;font-weight:bold;">New Accounting Guidance Pending Adoption</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%;font-size:10pt;"><font style="font-family:Arial;font-size:10pt;color:#000000;text-decoration:underline;">Accounting for Revenue from Contracts with Customers</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;">In May 2014, the FASB issued accounting guidance that establishes a comprehensive new model for the recognition of revenue from contracts with customers.  This model is based on the core principle that revenue should be recognized to depict the transfer of promised goods or services to customers in an amount that reflects the consideration to which the entity expects to be entitled in exchange for those goods or services.</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;">This guidance can be applied using either a full retrospective or modified retrospective transition method. In August 2015, the FASB issued guidance that defers the effective date of the standard by one year, which for public business entities, results in initial application of this guidance in annual reporting periods beginning after December 15, 2017 and interim periods within those years. Entities may early adopt the guidance as of the original effective date of the standard, which for public business entities is annual reporting periods beginning after December 15, 2016. Talen Energy expects to adopt this guidance effective January 1, 2018.</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;">Talen Energy is currently assessing the impact of adopting this guidance, as well as the transition method it will use.</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%;font-size:10pt;"><font style="font-family:Arial;font-size:10pt;color:#000000;text-decoration:underline;">Reporting Uncertainties about an Entity's Ability to Continue as a Going Concern</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;">In August 2014, the FASB issued accounting guidance which will require management to assess, for each interim and annual period, whether there are conditions or events that raise substantial doubt about an entity's ability to continue as a going concern.  Substantial doubt about an entity's ability to continue as a going concern exists when relevant conditions and events, considered in the aggregate, indicate that it is probable that the entity will be unable to meet its obligations as they become due within one year after the date the financial statements are issued.</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;">When management identifies conditions or events that raise substantial doubt about an entity's ability to continue as a going concern, management is required to disclose information that enables users of the financial statements to understand the principal conditions or events that raised substantial doubt about the entity's ability to continue as a going concern and management's evaluation of the significance of those conditions or events.  If substantial doubt about the entity's ability to continue as a going concern has been alleviated as a result of management's plan, the entity should disclose information that allows the users of the financial statements to understand those plans.  If the substantial doubt about the entity's ability to continue as a going concern is not alleviated by management's plans, management's plans to mitigate the conditions or events that gave rise to the substantial doubt about the entity's ability to continue as a going concern should be disclosed, as well as a statement that there is substantial doubt the entity's ability to continue as a going concern within one year after the date the financial statements are issued.</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;">For all entities, this guidance should be applied prospectively within the annual periods ending after December 15, 2016, and for annual periods and interim periods thereafter.  Early adoption is permitted.</font></div><div style="line-height:120%;text-align:left;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;">Talen Energy will adopt this guidance for the annual period ending December 31, 2016. The adoption of this guidance is not expected to have a significant impact. </font></div><div style="line-height:120%;text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"> </font></div><div style="line-height:120%;font-size:10pt;"><font style="font-family:Arial;font-size:10pt;color:#000000;text-decoration:underline;">Determining Whether the Host Contract in a Hybrid Financial Instrument Issued in the Form of a Share Is More Akin to Debt or to Equity</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;">In November 2014, the FASB issued guidance that clarifies how current accounting guidance should be interpreted when evaluating the economic characteristics and risks of a host contract of a hybrid financial instrument issued in the form of a share.  This guidance does not change the current criteria for determining whether separation of an embedded derivative feature from a hybrid financial instrument is required.  Entities are still required to evaluate whether the economic risks of the embedded derivative feature are clearly and closely related to those of the host contract, among other relevant criteria.</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;">An entity should consider the substantive terms and features of the entire hybrid financial instrument, including the embedded derivative feature being evaluated for bifurcation, in evaluating the nature of the host contract to determine whether the host contract is more akin to a debt instrument or more akin to an equity instrument.  An entity should assess the relative strength of the debt-like and equity-like terms and features when determining how to weight those terms and features.</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;">For public business entities, this guidance is effective for fiscal years, and interim periods within those fiscal years, beginning after December 15, 2015 and should be applied using a modified retrospective method for existing hybrid financial instruments issued in the form of a share as of the beginning of the fiscal year the guidance is adopted.  Early adoption is permitted.  Retrospective application is permitted but not required.</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;">Talen Energy will adopt this guidance effective January 1, 2016.  The adoption of this guidance is not expected to have a significant impact.</font></div><div style="line-height:120%;text-align:left;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:Arial;font-size:10pt;text-decoration:underline;">Simplifying the Presentation of Debt Issuance Costs</font></div><div style="line-height:120%;text-align:left;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;">In April 2015, the FASB issued accounting guidance to simplify the presentation of debt issuance costs by requiring debt issuance costs to be presented on the balance sheet as a direct deduction from the carrying amount of the associated debt liability, consistent with the presentation of debt discounts. Because this guidance did not address the treatment of debt issuance costs related to line-of-credit arrangements, additional guidance was issued in August 2015 stating that an entity may defer and amortize debt issuance costs over the term of a line-of-credit arrangement, regardless of whether there are any related outstanding borrowings.</font></div><div style="line-height:120%;text-align:left;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;">For public business entities, this guidance should be applied retrospectively for financial statements issued for fiscal years beginning after December 15, 2015 and interim periods within those fiscal years. Early adoption is permitted.</font></div><div style="line-height:120%;text-align:left;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;">Talen Energy will adopt this guidance effective January 1, 2016. The adoption of this guidance will require Talen Energy to reclassify debt issuance costs from assets to long-term debt, and is not expected to have a significant impact. </font></div><div style="line-height:120%;text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"> </font></div><div style="line-height:120%;text-align:left;font-size:10pt;"><font style="font-family:Arial;font-size:10pt;text-decoration:underline;">Recognition of Measurement of Financial Assets and Financial Liabilities</font><font style="font-family:inherit;font-size:10pt;"> </font></div><div style="line-height:120%;text-align:left;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;">In January 2016, the FASB issued accounting guidance that affects the accounting for equity investments, financial liabilities under the fair value option, and the disclosure requirements for financial instruments. This guidance generally requires entities to measure equity investments that are not accounted for under the equity method of accounting and do not result in consolidation at fair value and recognize any changes in fair value in net income. Entities may elect to record equity investments without readily determinable fair values at cost, less impairment, adjusted for observable price changes. The impairment model for equity investments subject to this election is a single-step qualitative assessment performed each quarter. For financial liabilities measured using the fair value option, changes in fair value related to instrument-specific credit risk to be presented separately within OCI. </font></div><div style="line-height:120%;text-align:left;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;">For public business entities, this guidance should generally be applied prospectively for financial statements issued for fiscal years beginning after December 15, 2017 and interim periods within those fiscal years. Early adoption is generally not permitted, although entities may early adopt the provision related to financial liabilities under the fair value option.</font></div><div style="line-height:120%;text-align:left;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;">Talen Energy expects to adopt this guidance effective January 1, 2018. Upon adoption, an entity will record a cumulative-effect adjustment to beginning retained earnings as of the beginning of the first reporting period in which the guidance is adopted, with the exception that the amendments related to equity securities with readily determined fair values should be applied prospectively. Talen Energy is currently assessing the impact of adopting this guidance, which may be significant for equity securities held in the NDT funds.</font></div><div style="line-height:120%;text-align:left;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:Arial;font-size:10pt;text-decoration:underline;">Accounting for Leases</font></div><div style="line-height:120%;text-align:left;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;">In February 2016, the FASB issued accounting guidance that updates the accounting for leases.  The updated guidance will require lessees to recognize assets and liabilities for the rights and obligations created by their leases with lease terms of more than 12 months.  Consistent with current accounting guidance, the recognition, measurement, and presentation of expenses and cash flows arising from a lease by a lessee primarily will depend on its classification as a finance (similar to the current capital lease) or an operating lease.  However, unlike current accounting guidance, which requires only capital leases to be recognized on the balance sheet, the new accounting guidance will require both types of leases to be recognized on the balance sheet.</font></div><div style="line-height:120%;text-align:left;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 new accounting guidance also will require disclosures to help investors and other financial statement users better understand the amount, timing, and uncertainty of cash flows arising from leases. These disclosures include qualitative and quantitative requirements, providing additional information about the amounts recorded in the financial statements.</font></div><div style="line-height:120%;text-align:left;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 accounting by lessors will remain largely unchanged.  However, the new accounting guidance contains some targeted improvements that are intended to align, where necessary, lessor accounting with the lessee accounting model and with the updated revenue recognition guidance issued in 2014 and discussed above.</font></div><div style="line-height:120%;text-align:left;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;">For public business entities, this guidance is effective for annual reporting periods beginning after December 15, 2018 and interim periods within those years.  Early application is permitted.  In transition, lessees and lessors are required to recognize and measure leases at the beginning of the earliest period presented using a modified retrospective approach.  The modified retrospective approach includes a number of optional practical expedients that entities may elect to apply.  These practical expedients relate to the identification and classification of leases that commenced before the effective date, initial direct costs for leases that commenced before the effective date, and the ability to use hindsight in evaluating lessee options to extend or terminate a lease or to purchase the underlying asset.  An entity that elects to apply the practical expedients will, in effect, continue to account for leases that commence before the effective date in accordance with previous accounting guidance unless the lease is modified, except that lessees are required to recognize a right-of-use asset and a lease liability for all operating leases at each reporting date based on the present value of the remaining minimum rental payments that were tracked and disclosed under previous accounting guidance.</font></div><div style="line-height:120%;text-align:left;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;">Talen Energy is currently assessing the impact of adopting this guidance and expects to adopt this guidance effective January 1, 2019.</font></div></div>
CY2015	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:Arial;font-size:10pt;text-decoration:underline;">Guarantees</font></div><div style="line-height:120%;text-align:left;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;">Generally, the initial measurement of a guarantee liability is the fair value of the guarantee at its inception. However, there are certain guarantees excluded from the scope of accounting guidance and other guarantees that are not subject to the initial recognition and measurement provisions of accounting guidance that only require disclosure. See Note </font><font style="font-family:inherit;font-size:10pt;">11</font><font style="font-family:inherit;font-size:10pt;"> for further discussion of recorded and unrecorded guarantees. </font></div></div>
CY2015	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:Arial;font-size:10pt;text-decoration:underline;">Use of Estimates</font><font style="font-family:Arial;font-size:10pt;font-weight:bold;"> </font></div><div style="line-height:120%;text-align:left;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 preparation of financial statements in conformity with GAAP requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities, the disclosure of contingent liabilities at the date of the financial statements and the reported amounts of revenues and expenses during the reporting period. Actual results could differ from those estimates. </font></div></div>

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2015 Q4 Form 10-K Financial Statement

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$TLN Talen Energy Corp Stock $tln

2015 Q4 Form 10-K Financial Statement

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