$NEE
NEXTERA ENERGY INC Stock $nee

$nee Overview Financials Valuation SEC Filings Company Website

2016 Q4 Form 10-K Financial Statement

#000075330818000013 Filed on February 16, 2018

Income Statement

Concept	2016 Q4	2016 Q3	2016 Q2
Revenue	$3.699B	$4.805B	$3.817B
YoY Change	-9.09%	-3.01%	-12.41%
Cost Of Revenue
YoY Change
Gross Profit
YoY Change
Gross Profit Margin
Selling, General & Admin
YoY Change
% of Gross Profit
Research & Development
YoY Change
% of Gross Profit
Depreciation & Amortization	$891.0M	$1.070B	$816.0M
YoY Change	5.95%	18.89%	-1.09%
% of Gross Profit
Operating Expenses	$3.338B	$3.526B	$2.648B
YoY Change	4.87%	1.53%	-17.56%
Operating Profit	$926.0M	$1.279B	$1.169B
YoY Change	5.71%	-13.64%	2.01%
Interest Expense	$409.0M	-$267.0M	-$521.0M
YoY Change	-292.02%	18.14%	130.53%
% of Operating Profit	44.17%	-20.88%	-44.57%
Other Income/Expense, Net	$325.0M	-$72.00M	-$406.0M
YoY Change	253.26%	-59.78%	167.11%
Pretax Income	$1.511B	$1.207B	$763.0M
YoY Change	99.6%	-7.3%	-23.24%
Income Tax	$500.0M	$418.0M	$219.0M
% Of Pretax Income	33.09%	34.63%	28.7%
Net Earnings	$966.0M	$753.0M	$540.0M
YoY Change	90.53%	-14.33%	-24.58%
Net Earnings / Revenue	26.12%	15.67%	14.15%
Basic Earnings Per Share	$2.07	$1.63	$1.17
Diluted Earnings Per Share	$2.06	$1.62	$1.16
COMMON SHARES
Basic Shares Outstanding		463.3M shares	461.3M shares
Diluted Shares Outstanding		466.0M shares	464.6M shares

Balance Sheet

Concept	2016 Q4	2016 Q3	2016 Q2
SHORT-TERM ASSETS
Cash & Short-Term Investments	$1.292B	$681.0M	$730.0M
YoY Change	126.27%	-42.34%	32.49%
Cash & Equivalents	$1.292B	$681.0M	$730.0M
Short-Term Investments
Other Short-Term Assets	$528.0M	$459.0M	$469.0M
YoY Change	10.92%	-23.75%	-29.58%
Inventory	$1.289B	$1.309B	$1.254B
Prepaid Expenses
Receivables	$1.784B	$1.921B	$1.816B
Other Receivables	$655.0M	$938.0M	$857.0M
Total Short-Term Assets	$7.409B	$6.747B	$6.512B
YoY Change	9.04%	1.35%	2.62%
LONG-TERM ASSETS
Property, Plant & Equipment	$66.91B	$65.62B	$64.16B
YoY Change	9.0%	9.66%	10.03%
Goodwill	$779.0M
YoY Change	0.13%
Intangibles
YoY Change
Long-Term Investments	$1.767B	$0.00	$0.00
YoY Change	66.23%
Other Assets	$3.335B	$3.279B	$3.069B
YoY Change	2.96%	40.55%	37.07%
Total Long-Term Assets	$15.67B	$15.50B	$14.75B
YoY Change	9.61%	15.06%	17.58%
TOTAL ASSETS
Total Short-Term Assets	$7.409B	$6.747B	$6.512B
Total Long-Term Assets	$15.67B	$15.50B	$14.75B
Total Assets	$90.47B	$87.86B	$85.42B
YoY Change	9.69%	9.88%	10.65%
SHORT-TERM LIABILITIES
YoY Change
Accounts Payable	$3.447B	$2.800B	$1.774B
YoY Change	36.3%	49.73%	16.94%
Accrued Expenses	$1.600B	$1.642B	$1.671B
YoY Change	16.79%	-9.38%	18.51%
Deferred Revenue
YoY Change
Short-Term Debt	$150.0M	$490.0M	$800.0M
YoY Change	-63.59%	-56.9%	-15.79%
Long-Term Debt Due	$2.604B	$2.364B	$3.125B
YoY Change	17.3%	-5.33%	12.9%
Total Short-Term Liabilities	$10.92B	$10.46B	$11.34B
YoY Change	8.03%	0.82%	20.33%
LONG-TERM LIABILITIES
Long-Term Debt	$27.82B	$28.20B	$27.00B
YoY Change	4.26%	10.12%	7.0%
Other Long-Term Liabilities	$2.049B	$2.115B	$1.847B
YoY Change	2.19%	23.68%	10.01%
Total Long-Term Liabilities	$25.93B	$24.34B	$23.20B
YoY Change	14.82%	15.04%	10.78%
TOTAL LIABILITIES
Total Short-Term Liabilities	$10.92B	$10.46B	$11.34B
Total Long-Term Liabilities	$25.93B	$24.34B	$23.20B
Total Liabilities	$36.84B	$34.80B	$34.54B
YoY Change	12.72%	10.36%	13.74%
SHAREHOLDERS EQUITY
Retained Earnings	$15.46B	$14.90B	$14.55B
YoY Change	9.32%	6.52%	8.12%
Common Stock	$8.953B	$9.044B	$8.708B
YoY Change	4.09%	6.41%	10.42%
Preferred Stock
YoY Change
Treasury Stock (at cost)
YoY Change
Treasury Stock Shares
Shareholders Equity	$24.34B	$23.91B	$23.17B
YoY Change
Total Liabilities & Shareholders Equity	$89.99B	$87.86B	$85.42B
YoY Change	9.11%	9.88%	10.65%

Cashflow Statement

Concept	2016 Q4	2016 Q3	2016 Q2
OPERATING ACTIVITIES
Net Income	$966.0M	$753.0M	$540.0M
YoY Change	90.53%	-14.33%	-24.58%
Depreciation, Depletion And Amortization	$891.0M	$1.070B	$816.0M
YoY Change	5.95%	18.89%	-1.09%
Cash From Operating Activities	$1.075B	$2.024B	$1.725B
YoY Change	-32.94%	28.18%	-1.6%
INVESTING ACTIVITIES
Capital Expenditures	-$921.0M	-$972.0M	-$1.082B
YoY Change	3.6%	-13.14%	14.26%
Acquisitions
YoY Change
Other Investing Activities	-$142.0M	-$574.0M	-$674.0M
YoY Change	-91.34%	-4.97%	-45.78%
Cash From Investing Activities	-$1.063B	-$1.546B	-$1.756B
YoY Change	-57.95%	-10.27%	-19.82%
FINANCING ACTIVITIES
Cash Dividend Paid
YoY Change
Common Stock Issuance & Retirement, Net
YoY Change
Debt Paid & Issued, Net
YoY Change
Cash From Financing Activities	625.0M	-527.0M	133.0M
YoY Change	98.41%	-168.09%	-74.37%
NET CHANGE
Cash From Operating Activities	1.075B	2.024B	1.725B
Cash From Investing Activities	-1.063B	-1.546B	-1.756B
Cash From Financing Activities	625.0M	-527.0M	133.0M
Net Change In Cash	637.0M	-49.00M	102.0M
YoY Change	-204.43%	-107.78%	24.39%
FREE CASH FLOW
Cash From Operating Activities	$1.075B	$2.024B	$1.725B
Capital Expenditures	-$921.0M	-$972.0M	-$1.082B
Free Cash Flow	$1.996B	$2.996B	$2.807B
YoY Change	-19.9%	11.05%	3.96%

Facts In Submission

Frame	Concept Type	Concept / XBRL Key	Value	Unit
CY2017	dei	Amendment Flag AmendmentFlag	false
CY2017	dei	Current Fiscal Year End Date CurrentFiscalYearEndDate	--12-31
CY2017	dei	Document Fiscal Period Focus DocumentFiscalPeriodFocus	FY
CY2017	dei	Document Fiscal Year Focus DocumentFiscalYearFocus	2017
CY2017	dei	Document Period End Date DocumentPeriodEndDate	2017-12-31
CY2017	dei	Document Type DocumentType	10-K
CY2017	dei	Entity Central Index Key EntityCentralIndexKey	0000753308
CY2018Q1	dei	Entity Common Stock Shares Outstanding EntityCommonStockSharesOutstanding	470793941	shares
CY2017	dei	Entity Current Reporting Status EntityCurrentReportingStatus	Yes
CY2017	dei	Entity Filer Category EntityFilerCategory	Large Accelerated Filer
CY2017Q2	dei	Entity Public Float EntityPublicFloat	65589650954	USD
CY2017	dei	Entity Registrant Name EntityRegistrantName	NEXTERA ENERGY INC
CY2017	dei	Entity Voluntary Filers EntityVoluntaryFilers	No
CY2017	dei	Entity Well Known Seasoned Issuer EntityWellKnownSeasonedIssuer	Yes
CY2016Q4	nee	Accrued Interest And Taxes AccruedInterestAndTaxes	480000000	USD
CY2017Q4	nee	Accrued Interest And Taxes AccruedInterestAndTaxes	622000000	USD
CY2015Q4	nee	Accumulated Depreciation And Amortization AccumulatedDepreciationAndAmortization	18944000000	USD
CY2016Q4	nee	Accumulated Depreciation And Amortization AccumulatedDepreciationAndAmortization	20101000000	USD
CY2017Q4	nee	Accumulated Depreciation And Amortization AccumulatedDepreciationAndAmortization	21367000000	USD
CY2016Q4	nee	Additional Collateral Aggregate Fair Value Due To Credit Rating Downgrade To Bbb Or Baa2 AdditionalCollateralAggregateFairValueDueToCreditRatingDowngradeToBbbOrBaa2	110000000	USD
CY2017Q4	nee	Additional Collateral Aggregate Fair Value Due To Credit Rating Downgrade To Bbb Or Baa2 AdditionalCollateralAggregateFairValueDueToCreditRatingDowngradeToBbbOrBaa2	145000000	USD
CY2016Q4	nee	Additional Collateral Aggregate Fair Value Due To Credit Rating Downgrade To Below Investment Grade AdditionalCollateralAggregateFairValueDueToCreditRatingDowngradeToBelowInvestmentGrade	990000000	USD
CY2017Q4	nee	Additional Collateral Aggregate Fair Value Due To Credit Rating Downgrade To Below Investment Grade AdditionalCollateralAggregateFairValueDueToCreditRatingDowngradeToBelowInvestmentGrade	1200000000	USD
CY2016Q4	nee	Additional Collateral Aggregate Fair Value Due To Other Financial Measures AdditionalCollateralAggregateFairValueDueToOtherFinancialMeasures	225000000	USD
CY2017Q4	nee	Additional Collateral Aggregate Fair Value Due To Other Financial Measures AdditionalCollateralAggregateFairValueDueToOtherFinancialMeasures	210000000	USD
CY2017Q4	nee	Amount Of Limited Insurance Coverage Per Occurrence Per Site Under Nuclear Insurance Mutual Companies For Property Damage Decontamination And Premature Decommissioning Risks AmountOfLimitedInsuranceCoveragePerOccurrencePerSiteUnderNuclearInsuranceMutualCompaniesForPropertyDamageDecontaminationAndPrematureDecommissioningRisks	2750000000	USD
CY2017Q4	nee	Amount Of Private Liability Insurance Per Nuclear Power Plant Site AmountOfPrivateLiabilityInsurancePerNuclearPowerPlantSite	450000000	USD
CY2017Q4	nee	Amount Of Secondary Financial Protection Per Incident At Nuclear Reactor AmountOfSecondaryFinancialProtectionPerIncidentAtNuclearReactor	13000000000	USD
CY2017Q4	nee	Amount Of Sublimit For Non Nuclear Perils Per Occurrence Per Site Under Nuclear Insurance Mutual Companies For Property Damage Decontamination And Premature Decommissioning Risks AmountOfSublimitForNonNuclearPerilsPerOccurrencePerSiteUnderNuclearInsuranceMutualCompaniesForPropertyDamageDecontaminationAndPrematureDecommissioningRisks	1500000000	USD
CY2017Q4	nee	Approximate Number Of Customer Accounts ApproximateNumberOfCustomerAccounts	5000000
CY2015	nee	Asset Recovery Damaged Property Costs AssetRecoveryDamagedPropertyCosts	0	USD
CY2016	nee	Asset Recovery Damaged Property Costs AssetRecoveryDamagedPropertyCosts	0	USD
CY2017	nee	Asset Recovery Damaged Property Costs AssetRecoveryDamagedPropertyCosts	1255000000	USD
CY2015	nee	Assumptionof Debtand Acquisition Holdbacksin Connectionwith Acquisition AssumptionofDebtandAcquisitionHoldbacksinConnectionwithAcquisition	1078000000	USD
CY2016	nee	Assumptionof Debtand Acquisition Holdbacksin Connectionwith Acquisition AssumptionofDebtandAcquisitionHoldbacksinConnectionwithAcquisition	0	USD
CY2017	nee	Assumptionof Debtand Acquisition Holdbacksin Connectionwith Acquisition AssumptionofDebtandAcquisitionHoldbacksinConnectionwithAcquisition	0	USD
CY2015	nee	Capital Contribution To Subsidiary CapitalContributionToSubsidiary	0	USD
CY2016	nee	Capital Contribution To Subsidiary CapitalContributionToSubsidiary	0	USD
CY2017	nee	Capital Contribution To Subsidiary CapitalContributionToSubsidiary	0	USD
CY2015	nee	Capital Expenditures Independent Power Investments And Nuclear Fuel Purchases CapitalExpendituresIndependentPowerInvestmentsAndNuclearFuelPurchases	8377000000	USD
CY2016	nee	Capital Expenditures Independent Power Investments And Nuclear Fuel Purchases CapitalExpendituresIndependentPowerInvestmentsAndNuclearFuelPurchases	9636000000	USD
CY2017	nee	Capital Expenditures Independent Power Investments And Nuclear Fuel Purchases CapitalExpendituresIndependentPowerInvestmentsAndNuclearFuelPurchases	10740000000	USD
CY2015	nee	Capital Expenditures Of Public Utility CapitalExpendituresOfPublicUtility	3428000000	USD
CY2016	nee	Capital Expenditures Of Public Utility CapitalExpendituresOfPublicUtility	3776000000	USD
CY2017	nee	Capital Expenditures Of Public Utility CapitalExpendituresOfPublicUtility	5174000000	USD
CY2015	nee	Cash Grants Under American Recovery And Reinvestment Act Of2009 CashGrantsUnderAmericanRecoveryAndReinvestmentActOf2009	8000000	USD
CY2016	nee	Cash Grants Under American Recovery And Reinvestment Act Of2009 CashGrantsUnderAmericanRecoveryAndReinvestmentActOf2009	335000000	USD
CY2017	nee	Cash Grants Under American Recovery And Reinvestment Act Of2009 CashGrantsUnderAmericanRecoveryAndReinvestmentActOf2009	78000000	USD
CY2015	nee	Changesinpropertyplantandequipmentasaresultofasettlement Changesinpropertyplantandequipmentasaresultofasettlement	-45000000	USD
CY2016	nee	Changesinpropertyplantandequipmentasaresultofasettlement Changesinpropertyplantandequipmentasaresultofasettlement	-72000000	USD
CY2017	nee	Changesinpropertyplantandequipmentasaresultofasettlement Changesinpropertyplantandequipmentasaresultofasettlement	-108000000	USD
CY2017Q4	nee	Coinsurance Limitof Coverage Per Loss Per Site Occurrence CoinsuranceLimitofCoveragePerLossPerSiteOccurrence	400000000	USD
CY2017	nee	Coinsurance Percent CoinsurancePercent	0.1
CY2016	nee	Convertible Investment Tax Credits ConvertibleInvestmentTaxCredits	2100000000	USD
CY2017	nee	Convertible Investment Tax Credits ConvertibleInvestmentTaxCredits	1900000000	USD
CY2016Q4	nee	Convertible Investment Tax Credits Included In Other Receivables ConvertibleInvestmentTaxCreditsIncludedInOtherReceivables	289000000	USD
CY2017Q4	nee	Convertible Investment Tax Credits Included In Other Receivables ConvertibleInvestmentTaxCreditsIncludedInOtherReceivables	138000000	USD
CY2015	nee	Cost Recovery Clauses And Franchise Fees CostRecoveryClausesAndFranchiseFees	-176000000	USD
CY2016	nee	Cost Recovery Clauses And Franchise Fees CostRecoveryClausesAndFranchiseFees	-94000000	USD
CY2017	nee	Cost Recovery Clauses And Franchise Fees CostRecoveryClausesAndFranchiseFees	-82000000	USD
CY2016Q4	nee	Current Assets Derviatives CurrentAssetsDerviatives	885000000	USD
CY2017Q4	nee	Current Assets Derviatives CurrentAssetsDerviatives	489000000	USD
CY2016Q4	nee	Current Regulatory Assets Other CurrentRegulatoryAssetsOther	321000000	USD
CY2017Q4	nee	Current Regulatory Assets Other CurrentRegulatoryAssetsOther	336000000	USD
CY2016Q4	nee	Deferred Proceeds From Sale Of Differential Membership Interests DeferredProceedsFromSaleOfDifferentialMembershipInterests	4656000000	USD
CY2017Q4	nee	Deferred Proceeds From Sale Of Differential Membership Interests DeferredProceedsFromSaleOfDifferentialMembershipInterests	5403000000	USD
CY2016Q4	nee	Deferred Tax Assets Tax Deferred Expense Decommissioning Reserves DeferredTaxAssetsTaxDeferredExpenseDecommissioningReserves	454000000	USD
CY2017Q4	nee	Deferred Tax Assets Tax Deferred Expense Decommissioning Reserves DeferredTaxAssetsTaxDeferredExpenseDecommissioningReserves	306000000	USD
CY2016Q4	nee	Deferred Tax Liabilities Nuclear Decommissioning Trusts DeferredTaxLiabilitiesNuclearDecommissioningTrusts	253000000	USD
CY2017Q4	nee	Deferred Tax Liabilities Nuclear Decommissioning Trusts DeferredTaxLiabilitiesNuclearDecommissioningTrusts	226000000	USD
CY2016Q4	nee	Deferredtaxliabilitiesequitymethodinvestmentofwhollyownedindirectsubsidiary Deferredtaxliabilitiesequitymethodinvestmentofwhollyownedindirectsubsidiary	603000000	USD
CY2017Q4	nee	Deferredtaxliabilitiesequitymethodinvestmentofwhollyownedindirectsubsidiary Deferredtaxliabilitiesequitymethodinvestmentofwhollyownedindirectsubsidiary	442000000	USD
CY2015	nee	Depreciation And Amortization Excluding Nuclear Fuel DepreciationAndAmortizationExcludingNuclearFuel	2831000000	USD
CY2016	nee	Depreciation And Amortization Excluding Nuclear Fuel DepreciationAndAmortizationExcludingNuclearFuel	3077000000	USD
CY2017	nee	Depreciation And Amortization Excluding Nuclear Fuel DepreciationAndAmortizationExcludingNuclearFuel	2357000000	USD
CY2016Q4	nee	Derivative Liabilities Contract DerivativeLiabilitiesContract	404000000	USD
CY2017Q4	nee	Derivative Liabilities Contract DerivativeLiabilitiesContract	364000000	USD
CY2015	nee	Effective Income Tax Rate Reconciliation Convertible Investment Tax Credits EffectiveIncomeTaxRateReconciliationConvertibleInvestmentTaxCredits	-0.008
CY2016	nee	Effective Income Tax Rate Reconciliation Convertible Investment Tax Credits EffectiveIncomeTaxRateReconciliationConvertibleInvestmentTaxCredits	-0.017
CY2017	nee	Effective Income Tax Rate Reconciliation Convertible Investment Tax Credits EffectiveIncomeTaxRateReconciliationConvertibleInvestmentTaxCredits	0.006
CY2015	nee	Effective Income Tax Rate Reconciliation Income Tax Charge Associatedwith Canadian Assetsin Nep Portfolio EffectiveIncomeTaxRateReconciliationIncomeTaxChargeAssociatedwithCanadianAssetsinNEPPortfolio	0.000
CY2016	nee	Effective Income Tax Rate Reconciliation Income Tax Charge Associatedwith Canadian Assetsin Nep Portfolio EffectiveIncomeTaxRateReconciliationIncomeTaxChargeAssociatedwithCanadianAssetsinNEPPortfolio	-0.007
CY2017	nee	Effective Income Tax Rate Reconciliation Income Tax Charge Associatedwith Canadian Assetsin Nep Portfolio EffectiveIncomeTaxRateReconciliationIncomeTaxChargeAssociatedwithCanadianAssetsinNEPPortfolio	0.000
CY2015	nee	Effective Income Tax Rate Reconciliation Production And Investment Tax Credits EffectiveIncomeTaxRateReconciliationProductionAndInvestmentTaxCredits	-0.041
CY2016	nee	Effective Income Tax Rate Reconciliation Production And Investment Tax Credits EffectiveIncomeTaxRateReconciliationProductionAndInvestmentTaxCredits	-0.039
CY2017	nee	Effective Income Tax Rate Reconciliation Production And Investment Tax Credits EffectiveIncomeTaxRateReconciliationProductionAndInvestmentTaxCredits	-0.084
CY2016Q4	nee	Electric Utility Plant In Service And Other Property ElectricUtilityPlantInServiceAndOtherProperty	80150000000	USD
CY2017Q4	nee	Electric Utility Plant In Service And Other Property ElectricUtilityPlantInServiceAndOtherProperty	85337000000	USD
CY2015	nee	Equity In Earnings Of Subsidiaries EquityInEarningsOfSubsidiaries	0	USD
CY2016	nee	Equity In Earnings Of Subsidiaries EquityInEarningsOfSubsidiaries	0	USD
CY2017	nee	Equity In Earnings Of Subsidiaries EquityInEarningsOfSubsidiaries	0	USD
CY2017Q4	nee	Equity Method Investment Ownership Percentage High Range EquityMethodInvestmentOwnershipPercentageHighRange	0.50
CY2017Q4	nee	Equity Method Investment Ownership Percentage Low Range EquityMethodInvestmentOwnershipPercentageLowRange	0.31
CY2016Q4	nee	Equity Method Investments Of Wholly Owned Indirect Subsidiary EquityMethodInvestmentsOfWhollyOwnedIndirectSubsidiary	1767000000	USD
CY2017Q4	nee	Equity Method Investments Of Wholly Owned Indirect Subsidiary EquityMethodInvestmentsOfWhollyOwnedIndirectSubsidiary	2321000000	USD
CY2015	nee	Fair Value Net Assets Liabilities Measured On Recurring Basis Change In Unrealized Gain Loss Included In Operating Revenues FairValueNetAssetsLiabilitiesMeasuredOnRecurringBasisChangeInUnrealizedGainLossIncludedInOperatingRevenues	289000000	USD
CY2016	nee	Fair Value Net Assets Liabilities Measured On Recurring Basis Change In Unrealized Gain Loss Included In Operating Revenues FairValueNetAssetsLiabilitiesMeasuredOnRecurringBasisChangeInUnrealizedGainLossIncludedInOperatingRevenues	283000000	USD
CY2017	nee	Fair Value Net Assets Liabilities Measured On Recurring Basis Change In Unrealized Gain Loss Included In Operating Revenues FairValueNetAssetsLiabilitiesMeasuredOnRecurringBasisChangeInUnrealizedGainLossIncludedInOperatingRevenues	281000000	USD
CY2015	nee	Fair Value Net Assets Liabilities Measured On Recurring Basis Gain Loss Included In Operating Revenues FairValueNetAssetsLiabilitiesMeasuredOnRecurringBasisGainLossIncludedInOperatingRevenues	462000000	USD
CY2016	nee	Fair Value Net Assets Liabilities Measured On Recurring Basis Gain Loss Included In Operating Revenues FairValueNetAssetsLiabilitiesMeasuredOnRecurringBasisGainLossIncludedInOperatingRevenues	397000000	USD
CY2017	nee	Fair Value Net Assets Liabilities Measured On Recurring Basis Gain Loss Included In Operating Revenues FairValueNetAssetsLiabilitiesMeasuredOnRecurringBasisGainLossIncludedInOperatingRevenues	379000000	USD
CY2015	nee	Fuel Purchased Power And Interchange Expense FuelPurchasedPowerAndInterchangeExpense	5327000000	USD
CY2016	nee	Fuel Purchased Power And Interchange Expense FuelPurchasedPowerAndInterchangeExpense	4042000000	USD
CY2017	nee	Fuel Purchased Power And Interchange Expense FuelPurchasedPowerAndInterchangeExpense	4071000000	USD
CY2016Q1	nee	High Common Stock Sales Price HighCommonStockSalesPrice	119.37
CY2016Q2	nee	High Common Stock Sales Price HighCommonStockSalesPrice	130.43
CY2016Q3	nee	High Common Stock Sales Price HighCommonStockSalesPrice	131.98
CY2016Q4	nee	High Common Stock Sales Price HighCommonStockSalesPrice	128.46
CY2017Q1	nee	High Common Stock Sales Price HighCommonStockSalesPrice	133.28
CY2017Q2	nee	High Common Stock Sales Price HighCommonStockSalesPrice	144.87
CY2017Q3	nee	High Common Stock Sales Price HighCommonStockSalesPrice	151.60
CY2017Q4	nee	High Common Stock Sales Price HighCommonStockSalesPrice	159.40
CY2015	nee	Income Associated With Differential Membership Interests IncomeAssociatedWithDifferentialMembershipInterests	216000000	USD
CY2016	nee	Income Associated With Differential Membership Interests IncomeAssociatedWithDifferentialMembershipInterests	309000000	USD
CY2017	nee	Income Associated With Differential Membership Interests IncomeAssociatedWithDifferentialMembershipInterests	460000000	USD
CY2015	nee	Increase Decreasein Property Plantand Equipment Net Dueto Cash Grants Under American Recoveryand Reinvestment Actof2009 IncreaseDecreaseinPropertyPlantandEquipmentNetDuetoCashGrantsUnderAmericanRecoveryandReinvestmentActof2009	-224000000	USD
CY2016	nee	Increase Decreasein Property Plantand Equipment Net Dueto Cash Grants Under American Recoveryand Reinvestment Actof2009 IncreaseDecreaseinPropertyPlantandEquipmentNetDuetoCashGrantsUnderAmericanRecoveryandReinvestmentActof2009	-419000000	USD
CY2017	nee	Increase Decreasein Property Plantand Equipment Net Dueto Cash Grants Under American Recoveryand Reinvestment Actof2009 IncreaseDecreaseinPropertyPlantandEquipmentNetDuetoCashGrantsUnderAmericanRecoveryandReinvestmentActof2009	154000000	USD
CY2015	nee	Independent Power Investments IndependentPowerInvestments	4505000000	USD
CY2016	nee	Independent Power Investments IndependentPowerInvestments	5396000000	USD
CY2017	nee	Independent Power Investments IndependentPowerInvestments	5295000000	USD
CY2015	nee	Interest Expense Aggregate Expenses InterestExpenseAggregateExpenses	1211000000	USD
CY2016	nee	Interest Expense Aggregate Expenses InterestExpenseAggregateExpenses	1093000000	USD
CY2017	nee	Interest Expense Aggregate Expenses InterestExpenseAggregateExpenses	1558000000	USD
CY2015	nee	Interest Income InterestIncome	86000000	USD
CY2016	nee	Interest Income InterestIncome	82000000	USD
CY2017	nee	Interest Income InterestIncome	81000000	USD
CY2016Q4	nee	Investmentsin Wholly Owned Subsidiaries InvestmentsinWhollyOwnedSubsidiaries	0	USD
CY2017Q4	nee	Investmentsin Wholly Owned Subsidiaries InvestmentsinWhollyOwnedSubsidiaries	0	USD
CY2016Q4	nee	Letters Of Credit Already Posted Aggregate Fair Value LettersOfCreditAlreadyPostedAggregateFairValue	30000000	USD
CY2017Q4	nee	Letters Of Credit Already Posted Aggregate Fair Value LettersOfCreditAlreadyPostedAggregateFairValue	20000000	USD
CY2016Q4	nee	Liabilities Associatedwith Assets Heldfor Sale LiabilitiesAssociatedwithAssetsHeldforSale	451000000	USD
CY2017Q4	nee	Liabilities Associatedwith Assets Heldfor Sale LiabilitiesAssociatedwithAssetsHeldforSale	18000000	USD
CY2016Q1	nee	Low Common Stock Sales Price LowCommonStockSalesPrice	102.20
CY2016Q2	nee	Low Common Stock Sales Price LowCommonStockSalesPrice	112.44
CY2016Q3	nee	Low Common Stock Sales Price LowCommonStockSalesPrice	120.22
CY2016Q4	nee	Low Common Stock Sales Price LowCommonStockSalesPrice	110.49
CY2017Q1	nee	Low Common Stock Sales Price LowCommonStockSalesPrice	117.33
CY2017Q2	nee	Low Common Stock Sales Price LowCommonStockSalesPrice	127.09
CY2017Q3	nee	Low Common Stock Sales Price LowCommonStockSalesPrice	138.00
CY2017Q4	nee	Low Common Stock Sales Price LowCommonStockSalesPrice	145.62
CY2016Q4	nee	Maximum Percentage Of Long Lived Assets Located In Foreign Countries MaximumPercentageOfLongLivedAssetsLocatedInForeignCountries	0.03
CY2017Q4	nee	Maximum Percentage Of Long Lived Assets Located In Foreign Countries MaximumPercentageOfLongLivedAssetsLocatedInForeignCountries	0.03
CY2015	nee	Maximum Percentage Of Operating Revenues From Foreign Sources MaximumPercentageOfOperatingRevenuesFromForeignSources	0.02
CY2016	nee	Maximum Percentage Of Operating Revenues From Foreign Sources MaximumPercentageOfOperatingRevenuesFromForeignSources	0.02
CY2017	nee	Maximum Percentage Of Operating Revenues From Foreign Sources MaximumPercentageOfOperatingRevenuesFromForeignSources	0.02
CY2016Q4	nee	Non Current Assets Derviatives NonCurrentAssetsDerviatives	1350000000	USD
CY2017Q4	nee	Non Current Assets Derviatives NonCurrentAssetsDerviatives	1315000000	USD
CY2016Q4	nee	Noncurrent Regulatory Asset Other NoncurrentRegulatoryAssetOther	1258000000	USD
CY2017Q4	nee	Noncurrent Regulatory Asset Other NoncurrentRegulatoryAssetOther	1506000000	USD
CY2016Q4	nee	Noncurrent Regulatory Liability Accrued Asset Removal Costs NoncurrentRegulatoryLiabilityAccruedAssetRemovalCosts	1956000000	USD
CY2017Q4	nee	Noncurrent Regulatory Liability Accrued Asset Removal Costs NoncurrentRegulatoryLiabilityAccruedAssetRemovalCosts	601000000	USD
CY2016Q4	nee	Noncurrent Regulatory Liability Asset Retirement Obligation Regulatory Expense Difference NoncurrentRegulatoryLiabilityAssetRetirementObligationRegulatoryExpenseDifference	2294000000	USD
CY2017Q4	nee	Noncurrent Regulatory Liability Asset Retirement Obligation Regulatory Expense Difference NoncurrentRegulatoryLiabilityAssetRetirementObligationRegulatoryExpenseDifference	2569000000	USD
CY2016Q4	nee	Noncurrent Regulatory Liability Other NoncurrentRegulatoryLiabilityOther	560000000	USD
CY2017Q4	nee	Noncurrent Regulatory Liability Other NoncurrentRegulatoryLiabilityOther	614000000	USD
CY2016Q4	nee	Nuclear Fuel NuclearFuel	2131000000	USD
CY2017Q4	nee	Nuclear Fuel NuclearFuel	1767000000	USD
CY2015	nee	Nuclear Fuel And Other Amortization NuclearFuelAndOtherAmortization	372000000	USD
CY2016	nee	Nuclear Fuel And Other Amortization NuclearFuelAndOtherAmortization	300000000	USD
CY2017	nee	Nuclear Fuel And Other Amortization NuclearFuelAndOtherAmortization	272000000	USD
CY2015	nee	Other Capital Expenditures OtherCapitalExpenditures	83000000	USD
CY2016	nee	Other Capital Expenditures OtherCapitalExpenditures	181000000	USD
CY2017	nee	Other Capital Expenditures OtherCapitalExpenditures	74000000	USD
CY2015	nee	Other Comprehensive Income Loss Related To Equity Method Investee Net Of Tax OtherComprehensiveIncomeLossRelatedToEquityMethodInvesteeNetOfTax	0	USD
CY2016	nee	Other Comprehensive Income Loss Related To Equity Method Investee Net Of Tax OtherComprehensiveIncomeLossRelatedToEquityMethodInvesteeNetOfTax	2000000	USD
CY2017	nee	Other Comprehensive Income Loss Related To Equity Method Investee Net Of Tax OtherComprehensiveIncomeLossRelatedToEquityMethodInvesteeNetOfTax	2000000	USD
CY2015	nee	Other Comprehensive Income Loss Related To Equity Method Investee Tax OtherComprehensiveIncomeLossRelatedToEquityMethodInvesteeTax	0	USD
CY2016	nee	Other Comprehensive Income Loss Related To Equity Method Investee Tax OtherComprehensiveIncomeLossRelatedToEquityMethodInvesteeTax	2000000	USD
CY2017	nee	Other Comprehensive Income Loss Related To Equity Method Investee Tax OtherComprehensiveIncomeLossRelatedToEquityMethodInvesteeTax	1000000	USD
CY2016Q4	nee	Other Current Assets OtherCurrentAssets	3678000000	USD
CY2017Q4	nee	Other Current Assets OtherCurrentAssets	2706000000	USD
CY2016Q4	nee	Other Current Liabilities OtherCurrentLiabilities	4450000000	USD
CY2017Q4	nee	Other Current Liabilities OtherCurrentLiabilities	4379000000	USD
CY2015	nee	Other Income Deductions Net OtherIncomeDeductionsNet	569000000	USD
CY2016	nee	Other Income Deductions Net OtherIncomeDeductionsNet	873000000	USD
CY2017	nee	Other Income Deductions Net OtherIncomeDeductionsNet	899000000	USD
CY2016Q4	nee	Other Liabilities Derivatives OtherLiabilitiesDerivatives	477000000	USD
CY2017Q4	nee	Other Liabilities Derivatives OtherLiabilitiesDerivatives	535000000	USD
CY2015	nee	Other Operations And Maintenance Expenses OtherOperationsAndMaintenanceExpenses	3269000000	USD
CY2016	nee	Other Operations And Maintenance Expenses OtherOperationsAndMaintenanceExpenses	3389000000	USD
CY2017	nee	Other Operations And Maintenance Expenses OtherOperationsAndMaintenanceExpenses	3327000000	USD
CY2015	nee	Other Than Temporary Impairment Losses On Securities Held In Nuclear Decommissioning Funds OtherThanTemporaryImpairmentLossesOnSecuritiesHeldInNuclearDecommissioningFunds	-40000000	USD
CY2016	nee	Other Than Temporary Impairment Losses On Securities Held In Nuclear Decommissioning Funds OtherThanTemporaryImpairmentLossesOnSecuritiesHeldInNuclearDecommissioningFunds	-23000000	USD
CY2017	nee	Other Than Temporary Impairment Losses On Securities Held In Nuclear Decommissioning Funds OtherThanTemporaryImpairmentLossesOnSecuritiesHeldInNuclearDecommissioningFunds	-10000000	USD
CY2015	nee	Percentage Of Operating Revenues Derived From Sale Of Electricity PercentageOfOperatingRevenuesDerivedFromSaleOfElectricity	0.92
CY2016	nee	Percentage Of Operating Revenues Derived From Sale Of Electricity PercentageOfOperatingRevenuesDerivedFromSaleOfElectricity	0.90
CY2017	nee	Percentage Of Operating Revenues Derived From Sale Of Electricity PercentageOfOperatingRevenuesDerivedFromSaleOfElectricity	0.93
CY2017Q4	nee	Potential Retrospective Assessment Limited Insurance Coverage Per Occurrence Per Site Nuclear Insurance Mutual Companies Property Damage Decontamination And Premature Decommissioning Risks PotentialRetrospectiveAssessmentLimitedInsuranceCoveragePerOccurrencePerSiteNuclearInsuranceMutualCompaniesPropertyDamageDecontaminationAndPrematureDecommissioningRisks	178000000	USD
CY2017Q4	nee	Potential Retrospective Assessments Under Secondary Financial Protection System PotentialRetrospectiveAssessmentsUnderSecondaryFinancialProtectionSystem	1000000000	USD
CY2017Q4	nee	Potential Retrospective Assessments Under Secondary Financial Protection System Payable Per Incident Per Year PotentialRetrospectiveAssessmentsUnderSecondaryFinancialProtectionSystemPayablePerIncidentPerYear	152000000	USD
CY2015	nee	Proceedsfrom Differential Membership Investors Usedin Debt Reduction ProceedsfromDifferentialMembershipInvestorsUsedinDebtReduction	0	USD
CY2016	nee	Proceedsfrom Differential Membership Investors Usedin Debt Reduction ProceedsfromDifferentialMembershipInvestorsUsedinDebtReduction	100000000	USD
CY2017	nee	Proceedsfrom Differential Membership Investors Usedin Debt Reduction ProceedsfromDifferentialMembershipInvestorsUsedinDebtReduction	0	USD
CY2015	nee	Proceedsfrom Saleof Independent Power Investments ProceedsfromSaleofIndependentPowerInvestments	52000000	USD
CY2016	nee	Proceedsfrom Saleof Independent Power Investments ProceedsfromSaleofIndependentPowerInvestments	658000000	USD
CY2017	nee	Proceedsfrom Saleof Independent Power Investments ProceedsfromSaleofIndependentPowerInvestments	178000000	USD
CY2016Q4	nee	Profit Sharing Liabilitynetof Amortization ProfitSharingLiabilitynetofAmortization	757000000	USD
CY2017Q4	nee	Profit Sharing Liabilitynetof Amortization ProfitSharingLiabilitynetofAmortization	866000000	USD
CY2015	nee	Regulatory Asset Purchased Power Agreement Termination Net RegulatoryAssetPurchasedPowerAgreementTerminationNet	521000000	USD
CY2016	nee	Regulatory Asset Purchased Power Agreement Termination Net RegulatoryAssetPurchasedPowerAgreementTerminationNet	0	USD
CY2017	nee	Regulatory Asset Purchased Power Agreement Termination Net RegulatoryAssetPurchasedPowerAgreementTerminationNet	243000000	USD
CY2016Q4	nee	Regulatory Assets Current Storm Reserve Deficiency RegulatoryAssetsCurrentStormReserveDeficiency	203000000	USD
CY2017Q4	nee	Regulatory Assets Current Storm Reserve Deficiency RegulatoryAssetsCurrentStormReserveDeficiency	0	USD
CY2016Q4	nee	Regulatory Assets Purchased Power Agreement Gross Noncurrent RegulatoryAssetsPurchasedPowerAgreementGrossNoncurrent	636000000	USD
CY2017Q4	nee	Regulatory Assets Purchased Power Agreement Gross Noncurrent RegulatoryAssetsPurchasedPowerAgreementGrossNoncurrent	963000000	USD
CY2016Q4	nee	Regulatory Liability Current Derivatives RegulatoryLiabilityCurrentDerivatives	208000000	USD
CY2017Q4	nee	Regulatory Liability Current Derivatives RegulatoryLiabilityCurrentDerivatives	0	USD
CY2016Q4	nee	Regulatory Liability Current Other RegulatoryLiabilityCurrentOther	5000000	USD
CY2017Q4	nee	Regulatory Liability Current Other RegulatoryLiabilityCurrentOther	50000000	USD
CY2016Q4	nee	Regulatory Liability Deferred Revenueand Credits Current RegulatoryLiabilityDeferredRevenueandCreditsCurrent	86000000	USD
CY2017Q4	nee	Regulatory Liability Deferred Revenueand Credits Current RegulatoryLiabilityDeferredRevenueandCreditsCurrent	296000000	USD
CY2017Q4	nee	Restrictedcashrelatedtomargincashcollateralthatisnettedagainstderivativeinstruments Restrictedcashrelatedtomargincashcollateralthatisnettedagainstderivativeinstruments	83000000	USD
CY2016Q4	nee	Revenue Equivalent Of Difference In Accumulated Deferred Income Taxes Computer Under Accounting Rules Versus Regulatory Rules RevenueEquivalentOfDifferenceInAccumulatedDeferredIncomeTaxesComputerUnderAccountingRulesVersusRegulatoryRules	289000000	USD
CY2017Q4	nee	Revenue Equivalent Of Difference In Accumulated Deferred Income Taxes Computer Under Accounting Rules Versus Regulatory Rules RevenueEquivalentOfDifferenceInAccumulatedDeferredIncomeTaxesComputerUnderAccountingRulesVersusRegulatoryRules	4213000000	USD
CY2015	nee	Sale Of Differential Membership Interests SaleOfDifferentialMembershipInterests	761000000	USD
CY2016	nee	Sale Of Differential Membership Interests SaleOfDifferentialMembershipInterests	1859000000	USD
CY2017	nee	Sale Of Differential Membership Interests SaleOfDifferentialMembershipInterests	1414000000	USD
CY2017	nee	Special Use Funds Nuclear Decommissioning Funds Weighted Average Maturity SpecialUseFundsNuclearDecommissioningFundsWeightedAverageMaturity	P9Y
CY2017	nee	Tax Cutsand Jobs Actof2017 Changein Tax Rate Deferred Tax Liability Income Tax Expense Benefit TaxCutsandJobsActof2017ChangeinTaxRateDeferredTaxLiabilityIncomeTaxExpenseBenefit	-6500000000	USD
CY2017Q4	nee	Total Number Of Consolidated Variable Interest Entities TotalNumberOfConsolidatedVariableInterestEntities	37
CY2017Q4	nee	Variable Rate Tax Exempt Bonds VariableRateTaxExemptBonds	838000000	USD
CY2016Q4	us-gaap	Accounts Payable Current And Noncurrent AccountsPayableCurrentAndNoncurrent	3447000000	USD
CY2017Q4	us-gaap	Accounts Payable Current And Noncurrent AccountsPayableCurrentAndNoncurrent	3235000000	USD
CY2016Q4	us-gaap	Accounts Receivable Net Current AccountsReceivableNetCurrent	1784000000	USD
CY2017Q4	us-gaap	Accounts Receivable Net Current AccountsReceivableNetCurrent	2220000000	USD
CY2014Q4	us-gaap	Accumulated Other Comprehensive Income Loss Net Of Tax AccumulatedOtherComprehensiveIncomeLossNetOfTax	-40000000	USD
CY2015Q4	us-gaap	Accumulated Other Comprehensive Income Loss Net Of Tax AccumulatedOtherComprehensiveIncomeLossNetOfTax	-167000000	USD
CY2016Q4	us-gaap	Accumulated Other Comprehensive Income Loss Net Of Tax AccumulatedOtherComprehensiveIncomeLossNetOfTax	-70000000	USD
CY2017Q4	us-gaap	Accumulated Other Comprehensive Income Loss Net Of Tax AccumulatedOtherComprehensiveIncomeLossNetOfTax	111000000	USD
CY2016Q4	us-gaap	Additional Paid In Capital Common Stock AdditionalPaidInCapitalCommonStock	8948000000	USD
CY2017Q4	us-gaap	Additional Paid In Capital Common Stock AdditionalPaidInCapitalCommonStock	9100000000	USD
CY2015	us-gaap	Adjustments To Additional Paid In Capital Stock Issued Issuance Costs AdjustmentsToAdditionalPaidInCapitalStockIssuedIssuanceCosts	1000000	USD
CY2016	us-gaap	Adjustments To Additional Paid In Capital Stock Issued Issuance Costs AdjustmentsToAdditionalPaidInCapitalStockIssuedIssuanceCosts	1000000	USD
CY2017	us-gaap	Adjustments To Additional Paid In Capital Stock Issued Issuance Costs AdjustmentsToAdditionalPaidInCapitalStockIssuedIssuanceCosts	1000000	USD
CY2015	us-gaap	Allocated Share Based Compensation Expense AllocatedShareBasedCompensationExpense	60000000	USD
CY2016	us-gaap	Allocated Share Based Compensation Expense AllocatedShareBasedCompensationExpense	77000000	USD
CY2017	us-gaap	Allocated Share Based Compensation Expense AllocatedShareBasedCompensationExpense	76000000	USD
CY2016Q4	us-gaap	Allowance For Doubtful Accounts Receivable Current AllowanceForDoubtfulAccountsReceivableCurrent	5000000	USD
CY2017Q4	us-gaap	Allowance For Doubtful Accounts Receivable Current AllowanceForDoubtfulAccountsReceivableCurrent	7000000	USD
CY2015	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	17000000	USD
CY2016	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	35000000	USD
CY2017	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	35000000	USD
CY2015	us-gaap	Antidilutive Securities Excluded From Computation Of Earnings Per Share Amount AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount	3500000	shares
CY2016	us-gaap	Antidilutive Securities Excluded From Computation Of Earnings Per Share Amount AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount	7900000	shares
CY2017	us-gaap	Antidilutive Securities Excluded From Computation Of Earnings Per Share Amount AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount	3100000	shares
CY2015Q4	us-gaap	Asset Retirement Obligation AssetRetirementObligation	2469000000	USD
CY2016Q4	us-gaap	Asset Retirement Obligation AssetRetirementObligation	2736000000	USD
CY2017Q4	us-gaap	Asset Retirement Obligation AssetRetirementObligation	3031000000	USD
CY2016	us-gaap	Asset Retirement Obligation Accretion Expense AssetRetirementObligationAccretionExpense	138000000	USD
CY2017	us-gaap	Asset Retirement Obligation Accretion Expense AssetRetirementObligationAccretionExpense	148000000	USD
CY2016Q4	us-gaap	Asset Retirement Obligation Legally Restricted Assets Fair Value AssetRetirementObligationLegallyRestrictedAssetsFairValue	5434000000	USD
CY2017Q4	us-gaap	Asset Retirement Obligation Legally Restricted Assets Fair Value AssetRetirementObligationLegallyRestrictedAssetsFairValue	6003000000	USD
CY2016	us-gaap	Asset Retirement Obligation Liabilities Incurred AssetRetirementObligationLiabilitiesIncurred	57000000	USD
CY2017	us-gaap	Asset Retirement Obligation Liabilities Incurred AssetRetirementObligationLiabilitiesIncurred	76000000	USD
CY2016	us-gaap	Asset Retirement Obligation Liabilities Settled AssetRetirementObligationLiabilitiesSettled	2000000	USD
CY2017	us-gaap	Asset Retirement Obligation Liabilities Settled AssetRetirementObligationLiabilitiesSettled	14000000	USD
CY2016	us-gaap	Asset Retirement Obligation Revision Of Estimate AssetRetirementObligationRevisionOfEstimate	74000000	USD
CY2017	us-gaap	Asset Retirement Obligation Revision Of Estimate AssetRetirementObligationRevisionOfEstimate	85000000	USD
CY2016Q4	us-gaap	Asset Retirement Obligations Noncurrent AssetRetirementObligationsNoncurrent	2736000000	USD
CY2017Q4	us-gaap	Asset Retirement Obligations Noncurrent AssetRetirementObligationsNoncurrent	3031000000	USD
CY2015Q4	us-gaap	Assets Assets	82479000000	USD
CY2016Q4	us-gaap	Assets Assets	89993000000	USD
CY2017Q4	us-gaap	Assets Assets	97827000000	USD
CY2016Q4	us-gaap	Assets Current AssetsCurrent	7409000000	USD
CY2017Q4	us-gaap	Assets Current AssetsCurrent	7157000000	USD
CY2016Q4	us-gaap	Assets Held For Sale Not Part Of Disposal Group Current AssetsHeldForSaleNotPartOfDisposalGroupCurrent	452000000	USD
CY2017Q4	us-gaap	Assets Held For Sale Not Part Of Disposal Group Current AssetsHeldForSaleNotPartOfDisposalGroupCurrent	140000000	USD
CY2016Q4	us-gaap	Assets Noncurrent AssetsNoncurrent	15672000000	USD
CY2017Q4	us-gaap	Assets Noncurrent AssetsNoncurrent	18254000000	USD
CY2016Q4	us-gaap	Available For Sale Debt Securities Amortized Cost Basis AvailableForSaleDebtSecuritiesAmortizedCostBasis	1820000000	USD
CY2017Q4	us-gaap	Available For Sale Debt Securities Amortized Cost Basis AvailableForSaleDebtSecuritiesAmortizedCostBasis	1921000000	USD
CY2016Q4	us-gaap	Available For Sale Equity Securities Amortized Cost Basis AvailableForSaleEquitySecuritiesAmortizedCostBasis	1543000000	USD
CY2017Q4	us-gaap	Available For Sale Equity Securities Amortized Cost Basis AvailableForSaleEquitySecuritiesAmortizedCostBasis	1521000000	USD
CY2015	us-gaap	Available For Sale Securities Gross Realized Gains AvailableForSaleSecuritiesGrossRealizedGains	194000000	USD
CY2016	us-gaap	Available For Sale Securities Gross Realized Gains AvailableForSaleSecuritiesGrossRealizedGains	116000000	USD
CY2017	us-gaap	Available For Sale Securities Gross Realized Gains AvailableForSaleSecuritiesGrossRealizedGains	178000000	USD
CY2015	us-gaap	Available For Sale Securities Gross Realized Gains Losses Sale Proceeds AvailableForSaleSecuritiesGrossRealizedGainsLossesSaleProceeds	4643000000	USD
CY2016	us-gaap	Available For Sale Securities Gross Realized Gains Losses Sale Proceeds AvailableForSaleSecuritiesGrossRealizedGainsLossesSaleProceeds	3400000000	USD
CY2017	us-gaap	Available For Sale Securities Gross Realized Gains Losses Sale Proceeds AvailableForSaleSecuritiesGrossRealizedGainsLossesSaleProceeds	2817000000	USD
CY2015	us-gaap	Available For Sale Securities Gross Realized Losses AvailableForSaleSecuritiesGrossRealizedLosses	87000000	USD
CY2016	us-gaap	Available For Sale Securities Gross Realized Losses AvailableForSaleSecuritiesGrossRealizedLosses	76000000	USD
CY2017	us-gaap	Available For Sale Securities Gross Realized Losses AvailableForSaleSecuritiesGrossRealizedLosses	83000000	USD
CY2015	us-gaap	Business Combination Acquisition Related Costs BusinessCombinationAcquisitionRelatedCosts	26000000	USD
CY2016	us-gaap	Business Combination Acquisition Related Costs BusinessCombinationAcquisitionRelatedCosts	135000000	USD
CY2017	us-gaap	Business Combination Acquisition Related Costs BusinessCombinationAcquisitionRelatedCosts	69000000	USD
CY2015	us-gaap	Business Combination Contingent Consideration Arrangements Change In Amount Of Contingent Consideration Liability1 BusinessCombinationContingentConsiderationArrangementsChangeInAmountOfContingentConsiderationLiability1	0	USD
CY2016	us-gaap	Business Combination Contingent Consideration Arrangements Change In Amount Of Contingent Consideration Liability1 BusinessCombinationContingentConsiderationArrangementsChangeInAmountOfContingentConsiderationLiability1	-189000000	USD
CY2017	us-gaap	Business Combination Contingent Consideration Arrangements Change In Amount Of Contingent Consideration Liability1 BusinessCombinationContingentConsiderationArrangementsChangeInAmountOfContingentConsiderationLiability1	0	USD
CY2015	us-gaap	Capital Expenditures Incurred But Not Yet Paid CapitalExpendituresIncurredButNotYetPaid	2616000000	USD
CY2016	us-gaap	Capital Expenditures Incurred But Not Yet Paid CapitalExpendituresIncurredButNotYetPaid	3626000000	USD
CY2017	us-gaap	Capital Expenditures Incurred But Not Yet Paid CapitalExpendituresIncurredButNotYetPaid	3029000000	USD
CY2016Q4	us-gaap	Capitalization Longterm Debt And Equity CapitalizationLongtermDebtAndEquity	53149000000	USD
CY2017Q4	us-gaap	Capitalization Longterm Debt And Equity CapitalizationLongtermDebtAndEquity	60961000000	USD
CY2016Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	1292000000	USD
CY2017Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	1714000000	USD
CY2014Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	765000000	USD
CY2015Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	772000000	USD
CY2016Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	1529000000	USD
CY2017Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	1983000000	USD
CY2015	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Including Exchange Rate Effect CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect	7000000	USD
CY2016	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Including Exchange Rate Effect CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect	757000000	USD
CY2017	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Including Exchange Rate Effect CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect	454000000	USD
CY2015	us-gaap	Cash Dividends Paid To Parent Company CashDividendsPaidToParentCompany	0	USD
CY2016	us-gaap	Cash Dividends Paid To Parent Company CashDividendsPaidToParentCompany	0	USD
CY2017	us-gaap	Cash Dividends Paid To Parent Company CashDividendsPaidToParentCompany	0	USD
CY2017	us-gaap	Cash Flow Hedge Gain Loss To Be Reclassified Within Twelve Months CashFlowHedgeGainLossToBeReclassifiedWithinTwelveMonths	-25000000	USD
CY2016Q4	us-gaap	Collateral Already Posted Aggregate Fair Value CollateralAlreadyPostedAggregateFairValue	1000000	USD
CY2017Q4	us-gaap	Collateral Already Posted Aggregate Fair Value CollateralAlreadyPostedAggregateFairValue	2000000	USD
CY2016Q4	us-gaap	Commercial Paper CommercialPaper	268000000	USD
CY2017Q4	us-gaap	Commercial Paper CommercialPaper	1687000000	USD
CY2016Q4	us-gaap	Commitments And Contingencies CommitmentsAndContingencies		USD
CY2016Q4	us-gaap	Commitments And Contingencies CommitmentsAndContingencies		USD
CY2017Q4	us-gaap	Commitments And Contingencies CommitmentsAndContingencies		USD
CY2017Q4	us-gaap	Commitments And Contingencies CommitmentsAndContingencies		USD
CY2015	us-gaap	Common Stock Dividends Per Share Cash Paid CommonStockDividendsPerShareCashPaid	3.08
CY2016Q1	us-gaap	Common Stock Dividends Per Share Cash Paid CommonStockDividendsPerShareCashPaid	0.87
CY2016Q2	us-gaap	Common Stock Dividends Per Share Cash Paid CommonStockDividendsPerShareCashPaid	0.87
CY2016Q3	us-gaap	Common Stock Dividends Per Share Cash Paid CommonStockDividendsPerShareCashPaid	0.87
CY2016Q4	us-gaap	Common Stock Dividends Per Share Cash Paid CommonStockDividendsPerShareCashPaid	0.870
CY2016	us-gaap	Common Stock Dividends Per Share Cash Paid CommonStockDividendsPerShareCashPaid	3.48
CY2017Q1	us-gaap	Common Stock Dividends Per Share Cash Paid CommonStockDividendsPerShareCashPaid	0.9825
CY2017Q2	us-gaap	Common Stock Dividends Per Share Cash Paid CommonStockDividendsPerShareCashPaid	0.9825
CY2017Q3	us-gaap	Common Stock Dividends Per Share Cash Paid CommonStockDividendsPerShareCashPaid	0.9825
CY2017Q4	us-gaap	Common Stock Dividends Per Share Cash Paid CommonStockDividendsPerShareCashPaid	0.9825
CY2017	us-gaap	Common Stock Dividends Per Share Cash Paid CommonStockDividendsPerShareCashPaid	3.93
CY2016Q4	us-gaap	Common Stock Par Or Stated Value Per Share CommonStockParOrStatedValuePerShare	0.01
CY2017Q4	us-gaap	Common Stock Par Or Stated Value Per Share CommonStockParOrStatedValuePerShare	0.01
CY2016Q4	us-gaap	Common Stock Shares Authorized CommonStockSharesAuthorized	800000000	shares
CY2017Q4	us-gaap	Common Stock Shares Authorized CommonStockSharesAuthorized	800000000	shares
CY2016Q4	us-gaap	Common Stock Shares Outstanding CommonStockSharesOutstanding	468000000	shares
CY2017Q4	us-gaap	Common Stock Shares Outstanding CommonStockSharesOutstanding	471000000	shares
CY2016Q4	us-gaap	Common Stock Value CommonStockValue	5000000	USD
CY2017Q4	us-gaap	Common Stock Value CommonStockValue	5000000	USD
CY2015	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	2625000000	USD
CY2016	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	3009000000	USD
CY2017	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	5559000000	USD
CY2015	us-gaap	Comprehensive Income Net Of Tax Attributable To Noncontrolling Interest ComprehensiveIncomeNetOfTaxAttributableToNoncontrollingInterest	-1000000	USD
CY2016	us-gaap	Comprehensive Income Net Of Tax Attributable To Noncontrolling Interest ComprehensiveIncomeNetOfTaxAttributableToNoncontrollingInterest	93000000	USD
CY2017	us-gaap	Comprehensive Income Net Of Tax Attributable To Noncontrolling Interest ComprehensiveIncomeNetOfTaxAttributableToNoncontrollingInterest	-46000000	USD
CY2015	us-gaap	Comprehensive Income Net Of Tax Including Portion Attributable To Noncontrolling Interest ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest	2624000000	USD
CY2016	us-gaap	Comprehensive Income Net Of Tax Including Portion Attributable To Noncontrolling Interest ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest	3102000000	USD
CY2017	us-gaap	Comprehensive Income Net Of Tax Including Portion Attributable To Noncontrolling Interest ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest	5513000000	USD
CY2016Q4	us-gaap	Construction In Progress Gross ConstructionInProgressGross	4732000000	USD
CY2017Q4	us-gaap	Construction In Progress Gross ConstructionInProgressGross	6679000000	USD
CY2016Q4	us-gaap	Construction Payable Current ConstructionPayableCurrent	1120000000	USD
CY2017Q4	us-gaap	Construction Payable Current ConstructionPayableCurrent	1033000000	USD
CY2015	us-gaap	Current Federal Tax Expense Benefit CurrentFederalTaxExpenseBenefit	10000000	USD
CY2016	us-gaap	Current Federal Tax Expense Benefit CurrentFederalTaxExpenseBenefit	72000000	USD
CY2017	us-gaap	Current Federal Tax Expense Benefit CurrentFederalTaxExpenseBenefit	100000000	USD
CY2015	us-gaap	Current State And Local Tax Expense Benefit CurrentStateAndLocalTaxExpenseBenefit	31000000	USD
CY2016	us-gaap	Current State And Local Tax Expense Benefit CurrentStateAndLocalTaxExpenseBenefit	76000000	USD
CY2017	us-gaap	Current State And Local Tax Expense Benefit CurrentStateAndLocalTaxExpenseBenefit	88000000	USD
CY2016Q4	us-gaap	Customer Deposits Current CustomerDepositsCurrent	470000000	USD
CY2017Q4	us-gaap	Customer Deposits Current CustomerDepositsCurrent	448000000	USD
CY2016Q4	us-gaap	Debt Current DebtCurrent	3022000000	USD
CY2017Q4	us-gaap	Debt Current DebtCurrent	3618000000	USD
CY2016Q4	us-gaap	Decommissioning Fund Investments DecommissioningFundInvestments	5434000000	USD
CY2017Q4	us-gaap	Decommissioning Fund Investments DecommissioningFundInvestments	6003000000	USD
CY2016Q4	us-gaap	Decommissioning Trust Assets Amount DecommissioningTrustAssetsAmount	5434000000	USD
CY2017Q4	us-gaap	Decommissioning Trust Assets Amount DecommissioningTrustAssetsAmount	6003000000	USD
CY2015	us-gaap	Deferred Federal Income Tax Expense Benefit DeferredFederalIncomeTaxExpenseBenefit	1194000000	USD
CY2016	us-gaap	Deferred Federal Income Tax Expense Benefit DeferredFederalIncomeTaxExpenseBenefit	1075000000	USD
CY2017	us-gaap	Deferred Federal Income Tax Expense Benefit DeferredFederalIncomeTaxExpenseBenefit	-1040000000	USD
CY2015	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	1162000000	USD
CY2016	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	1230000000	USD
CY2017	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	-875000000	USD
CY2016Q4	us-gaap	Deferred Income Tax Liabilities DeferredIncomeTaxLiabilities	16257000000	USD
CY2017Q4	us-gaap	Deferred Income Tax Liabilities DeferredIncomeTaxLiabilities	11196000000	USD
CY2015	us-gaap	Deferred State And Local Income Tax Expense Benefit DeferredStateAndLocalIncomeTaxExpenseBenefit	-7000000	USD
CY2016	us-gaap	Deferred State And Local Income Tax Expense Benefit DeferredStateAndLocalIncomeTaxExpenseBenefit	160000000	USD
CY2017	us-gaap	Deferred State And Local Income Tax Expense Benefit DeferredStateAndLocalIncomeTaxExpenseBenefit	199000000	USD
CY2016Q4	us-gaap	Deferred Tax Assets Net DeferredTaxAssetsNet	5617000000	USD
CY2017Q4	us-gaap	Deferred Tax Assets Net DeferredTaxAssetsNet	5859000000	USD
CY2016Q4	us-gaap	Deferred Tax Assets Net Noncurrent DeferredTaxAssetsNetNoncurrent	461000000	USD
CY2017Q4	us-gaap	Deferred Tax Assets Net Noncurrent DeferredTaxAssetsNetNoncurrent	417000000	USD
CY2016Q4	us-gaap	Deferred Tax Assets Operating Loss Carryforwards DeferredTaxAssetsOperatingLossCarryforwards	427000000	USD
CY2017Q4	us-gaap	Deferred Tax Assets Operating Loss Carryforwards DeferredTaxAssetsOperatingLossCarryforwards	482000000	USD
CY2016Q4	us-gaap	Deferred Tax Assets Other DeferredTaxAssetsOther	940000000	USD
CY2017Q4	us-gaap	Deferred Tax Assets Other DeferredTaxAssetsOther	646000000	USD
CY2016Q4	us-gaap	Deferred Tax Assets Regulatory Assets And Liabilities DeferredTaxAssetsRegulatoryAssetsAndLiabilities	84000000	USD
CY2017Q4	us-gaap	Deferred Tax Assets Regulatory Assets And Liabilities DeferredTaxAssetsRegulatoryAssetsAndLiabilities	1267000000	USD
CY2016Q4	us-gaap	Deferred Tax Assets Tax Credit Carryforwards DeferredTaxAssetsTaxCreditCarryforwards	3059000000	USD
CY2017Q4	us-gaap	Deferred Tax Assets Tax Credit Carryforwards DeferredTaxAssetsTaxCreditCarryforwards	3126000000	USD
CY2016Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Compensation And Benefits Postretirement Benefits DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsPostretirementBenefits	145000000	USD
CY2017Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Compensation And Benefits Postretirement Benefits DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsPostretirementBenefits	74000000	USD
CY2016Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Reserves And Accruals Asset Retirement Obligations DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsAssetRetirementObligations	777000000	USD
CY2017Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Reserves And Accruals Asset Retirement Obligations DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsAssetRetirementObligations	210000000	USD
CY2016Q4	us-gaap	Deferred Tax Assets Valuation Allowance DeferredTaxAssetsValuationAllowance	269000000	USD
CY2017Q4	us-gaap	Deferred Tax Assets Valuation Allowance DeferredTaxAssetsValuationAllowance	252000000	USD
CY2016Q4	us-gaap	Deferred Tax Liabilities DeferredTaxLiabilities	10640000000	USD
CY2017Q4	us-gaap	Deferred Tax Liabilities DeferredTaxLiabilities	5337000000	USD
CY2016Q4	us-gaap	Deferred Tax Liabilities Derivatives DeferredTaxLiabilitiesDerivatives	581000000	USD
CY2017Q4	us-gaap	Deferred Tax Liabilities Derivatives DeferredTaxLiabilitiesDerivatives	263000000	USD
CY2016Q4	us-gaap	Deferred Tax Liabilities Noncurrent DeferredTaxLiabilitiesNoncurrent	11101000000	USD
CY2017Q4	us-gaap	Deferred Tax Liabilities Noncurrent DeferredTaxLiabilitiesNoncurrent	5754000000	USD
CY2016Q4	us-gaap	Deferred Tax Liabilities Other DeferredTaxLiabilitiesOther	1272000000	USD
CY2017Q4	us-gaap	Deferred Tax Liabilities Other DeferredTaxLiabilitiesOther	871000000	USD
CY2016Q4	us-gaap	Deferred Tax Liabilities Prepaid Expenses DeferredTaxLiabilitiesPrepaidExpenses	454000000	USD
CY2017Q4	us-gaap	Deferred Tax Liabilities Prepaid Expenses DeferredTaxLiabilitiesPrepaidExpenses	364000000	USD
CY2016Q4	us-gaap	Deferred Tax Liabilities Property Plant And Equipment DeferredTaxLiabilitiesPropertyPlantAndEquipment	13094000000	USD
CY2017Q4	us-gaap	Deferred Tax Liabilities Property Plant And Equipment DeferredTaxLiabilitiesPropertyPlantAndEquipment	9030000000	USD
CY2016Q4	us-gaap	Deferred Tax Liabilities Regulatory Assets And Liabilities DeferredTaxLiabilitiesRegulatoryAssetsAndLiabilities	96000000	USD
CY2017Q4	us-gaap	Deferred Tax Liabilities Regulatory Assets And Liabilities DeferredTaxLiabilitiesRegulatoryAssetsAndLiabilities	4981000000	USD
CY2016Q4	us-gaap	Defined Benefit Plan Assets For Plan Benefits Noncurrent DefinedBenefitPlanAssetsForPlanBenefitsNoncurrent	1177000000	USD
CY2017Q4	us-gaap	Defined Benefit Plan Assets For Plan Benefits Noncurrent DefinedBenefitPlanAssetsForPlanBenefitsNoncurrent	1427000000	USD
CY2016Q4	us-gaap	Defined Benefit Plan Fair Value Of Plan Assets DefinedBenefitPlanFairValueOfPlanAssets	3651000000	USD
CY2017Q4	us-gaap	Defined Benefit Plan Fair Value Of Plan Assets DefinedBenefitPlanFairValueOfPlanAssets	4020000000	USD
CY2015	us-gaap	Defined Contribution Plan Cost Recognized DefinedContributionPlanCostRecognized	63000000	USD
CY2016	us-gaap	Defined Contribution Plan Cost Recognized DefinedContributionPlanCostRecognized	52000000	USD
CY2017	us-gaap	Defined Contribution Plan Cost Recognized DefinedContributionPlanCostRecognized	53000000	USD
CY2015	us-gaap	Depreciation And Amortization DepreciationAndAmortization	2831000000	USD
CY2016	us-gaap	Depreciation And Amortization DepreciationAndAmortization	3077000000	USD
CY2017	us-gaap	Depreciation And Amortization DepreciationAndAmortization	2357000000	USD
CY2016Q4	us-gaap	Derivative Assets DerivativeAssets	2235000000	USD
CY2017Q4	us-gaap	Derivative Assets DerivativeAssets	1804000000	USD
CY2016Q4	us-gaap	Derivative Collateral Obligation To Return Cash DerivativeCollateralObligationToReturnCash	5000000	USD
CY2017Q4	us-gaap	Derivative Collateral Obligation To Return Cash DerivativeCollateralObligationToReturnCash	10000000	USD
CY2016Q4	us-gaap	Derivative Collateral Right To Reclaim Cash DerivativeCollateralRightToReclaimCash	129000000	USD
CY2017Q4	us-gaap	Derivative Collateral Right To Reclaim Cash DerivativeCollateralRightToReclaimCash	40000000	USD
CY2015	us-gaap	Derivative Instruments Not Designated As Hedging Instruments Gain Loss Net DerivativeInstrumentsNotDesignatedAsHedgingInstrumentsGainLossNet	948000000	USD
CY2016	us-gaap	Derivative Instruments Not Designated As Hedging Instruments Gain Loss Net DerivativeInstrumentsNotDesignatedAsHedgingInstrumentsGainLossNet	551000000	USD
CY2017	us-gaap	Derivative Instruments Not Designated As Hedging Instruments Gain Loss Net DerivativeInstrumentsNotDesignatedAsHedgingInstrumentsGainLossNet	153000000	USD
CY2016Q4	us-gaap	Derivative Liabilities DerivativeLiabilities	881000000	USD
CY2017Q4	us-gaap	Derivative Liabilities DerivativeLiabilities	899000000	USD
CY2016Q4	us-gaap	Derivative Net Liability Position Aggregate Fair Value DerivativeNetLiabilityPositionAggregateFairValue	1300000000	USD
CY2017Q4	us-gaap	Derivative Net Liability Position Aggregate Fair Value DerivativeNetLiabilityPositionAggregateFairValue	1100000000	USD
CY2015	us-gaap	Disposal Group Not Discontinued Operation Gain Loss On Disposal DisposalGroupNotDiscontinuedOperationGainLossOnDisposal	-4000000	USD
CY2016	us-gaap	Disposal Group Not Discontinued Operation Gain Loss On Disposal DisposalGroupNotDiscontinuedOperationGainLossOnDisposal	446000000	USD
CY2017	us-gaap	Disposal Group Not Discontinued Operation Gain Loss On Disposal DisposalGroupNotDiscontinuedOperationGainLossOnDisposal	1111000000	USD
CY2015	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	6.11
CY2016Q1	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	1.42
CY2016Q2	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	1.17
CY2016Q3	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	1.63
CY2016Q4	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	2.07
CY2016	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	6.29
CY2017Q1	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	3.39
CY2017Q2	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	1.69
CY2017Q3	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	1.80
CY2017Q4	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	4.58
CY2017	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	11.47
CY2015	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	6.06
CY2016Q1	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	1.41
CY2016Q2	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	1.16
CY2016Q3	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	1.62
CY2016Q4	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	2.06
CY2016	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	6.25
CY2017Q1	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	3.37
CY2017Q2	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	1.68
CY2017Q3	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	1.79
CY2017Q4	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	4.55
CY2017	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	11.38
CY2015	us-gaap	Effect Of Exchange Rate On Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents EffectOfExchangeRateOnCashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	17000000	USD
CY2016	us-gaap	Effect Of Exchange Rate On Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents EffectOfExchangeRateOnCashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	10000000	USD
CY2017	us-gaap	Effect Of Exchange Rate On Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents EffectOfExchangeRateOnCashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	26000000	USD
CY2015	us-gaap	Effective Income Tax Rate Continuing Operations EffectiveIncomeTaxRateContinuingOperations	0.308
CY2016	us-gaap	Effective Income Tax Rate Continuing Operations EffectiveIncomeTaxRateContinuingOperations	0.315
CY2017	us-gaap	Effective Income Tax Rate Continuing Operations EffectiveIncomeTaxRateContinuingOperations	-0.140
CY2015	us-gaap	Effective Income Tax Rate Reconciliation At Federal Statutory Income Tax Rate EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate	0.35
CY2016	us-gaap	Effective Income Tax Rate Reconciliation At Federal Statutory Income Tax Rate EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate	0.35
CY2017	us-gaap	Effective Income Tax Rate Reconciliation At Federal Statutory Income Tax Rate EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate	0.35
CY2015	us-gaap	Effective Income Tax Rate Reconciliation Change In Enacted Tax Rate EffectiveIncomeTaxRateReconciliationChangeInEnactedTaxRate	0.000
CY2016	us-gaap	Effective Income Tax Rate Reconciliation Change In Enacted Tax Rate EffectiveIncomeTaxRateReconciliationChangeInEnactedTaxRate	0.000
CY2017	us-gaap	Effective Income Tax Rate Reconciliation Change In Enacted Tax Rate EffectiveIncomeTaxRateReconciliationChangeInEnactedTaxRate	-0.412
CY2015	us-gaap	Effective Income Tax Rate Reconciliation Other Adjustments EffectiveIncomeTaxRateReconciliationOtherAdjustments	0.003
CY2016	us-gaap	Effective Income Tax Rate Reconciliation Other Adjustments EffectiveIncomeTaxRateReconciliationOtherAdjustments	-0.007
CY2017	us-gaap	Effective Income Tax Rate Reconciliation Other Adjustments EffectiveIncomeTaxRateReconciliationOtherAdjustments	-0.029
CY2015	us-gaap	Effective Income Tax Rate Reconciliation State And Local Income Taxes EffectiveIncomeTaxRateReconciliationStateAndLocalIncomeTaxes	0.004
CY2016	us-gaap	Effective Income Tax Rate Reconciliation State And Local Income Taxes EffectiveIncomeTaxRateReconciliationStateAndLocalIncomeTaxes	0.035
CY2017	us-gaap	Effective Income Tax Rate Reconciliation State And Local Income Taxes EffectiveIncomeTaxRateReconciliationStateAndLocalIncomeTaxes	0.029
CY2017Q4	us-gaap	Employee Service Share Based Compensation Nonvested Awards Total Compensation Cost Not Yet Recognized EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognized	85000000	USD
CY2017	us-gaap	Employee Service Share Based Compensation Nonvested Awards Total Compensation Cost Not Yet Recognized Period For Recognition1 EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedPeriodForRecognition1	P1Y9M
CY2015	us-gaap	Employee Service Share Based Compensation Tax Benefit From Compensation Expense EmployeeServiceShareBasedCompensationTaxBenefitFromCompensationExpense	23000000	USD
CY2016	us-gaap	Employee Service Share Based Compensation Tax Benefit From Compensation Expense EmployeeServiceShareBasedCompensationTaxBenefitFromCompensationExpense	30000000	USD
CY2017	us-gaap	Employee Service Share Based Compensation Tax Benefit From Compensation Expense EmployeeServiceShareBasedCompensationTaxBenefitFromCompensationExpense	29000000	USD
CY2016Q4	us-gaap	Equity Method Investment Summarized Financial Information Assets EquityMethodInvestmentSummarizedFinancialInformationAssets	4502000000	USD
CY2017Q4	us-gaap	Equity Method Investment Summarized Financial Information Assets EquityMethodInvestmentSummarizedFinancialInformationAssets	6001000000	USD
CY2016Q4	us-gaap	Equity Method Investment Summarized Financial Information Equity Or Capital EquityMethodInvestmentSummarizedFinancialInformationEquityOrCapital	3138000000	USD
CY2017Q4	us-gaap	Equity Method Investment Summarized Financial Information Equity Or Capital EquityMethodInvestmentSummarizedFinancialInformationEquityOrCapital	4784000000	USD
CY2016Q4	us-gaap	Equity Method Investment Summarized Financial Information Liabilities EquityMethodInvestmentSummarizedFinancialInformationLiabilities	1364000000	USD
CY2017Q4	us-gaap	Equity Method Investment Summarized Financial Information Liabilities EquityMethodInvestmentSummarizedFinancialInformationLiabilities	1217000000	USD
CY2016	us-gaap	Equity Method Investment Summarized Financial Information Net Income Loss EquityMethodInvestmentSummarizedFinancialInformationNetIncomeLoss	264000000	USD
CY2017	us-gaap	Equity Method Investment Summarized Financial Information Net Income Loss EquityMethodInvestmentSummarizedFinancialInformationNetIncomeLoss	358000000	USD
CY2015Q4	us-gaap	Equity Method Investments EquityMethodInvestments	1063000000	USD
CY2016Q4	us-gaap	Equity Method Investments EquityMethodInvestments	1767000000	USD
CY2017Q4	us-gaap	Equity Method Investments EquityMethodInvestments	2321000000	USD
CY2015	us-gaap	Federal Income Tax Expense Benefit Continuing Operations FederalIncomeTaxExpenseBenefitContinuingOperations	1204000000	USD
CY2016	us-gaap	Federal Income Tax Expense Benefit Continuing Operations FederalIncomeTaxExpenseBenefitContinuingOperations	1147000000	USD
CY2017	us-gaap	Federal Income Tax Expense Benefit Continuing Operations FederalIncomeTaxExpenseBenefitContinuingOperations	-940000000	USD
CY2016Q4	us-gaap	Finite Lived Intangible Assets Accumulated Amortization FiniteLivedIntangibleAssetsAccumulatedAmortization	115000000	USD
CY2017Q4	us-gaap	Finite Lived Intangible Assets Accumulated Amortization FiniteLivedIntangibleAssetsAccumulatedAmortization	151000000	USD
CY2017Q4	us-gaap	Finite Lived Intangible Assets Amortization Expense Next Twelve Months FiniteLivedIntangibleAssetsAmortizationExpenseNextTwelveMonths	36000000	USD
CY2017Q4	us-gaap	Finite Lived Intangible Assets Amortization Expense Year Five FiniteLivedIntangibleAssetsAmortizationExpenseYearFive	35000000	USD
CY2017Q4	us-gaap	Finite Lived Intangible Assets Amortization Expense Year Four FiniteLivedIntangibleAssetsAmortizationExpenseYearFour	35000000	USD
CY2017Q4	us-gaap	Finite Lived Intangible Assets Amortization Expense Year Three FiniteLivedIntangibleAssetsAmortizationExpenseYearThree	35000000	USD
CY2017Q4	us-gaap	Finite Lived Intangible Assets Amortization Expense Year Two FiniteLivedIntangibleAssetsAmortizationExpenseYearTwo	35000000	USD
CY2016Q4	us-gaap	Finite Lived Intangible Assets Gross FiniteLivedIntangibleAssetsGross	1225000000	USD
CY2017Q4	us-gaap	Finite Lived Intangible Assets Gross FiniteLivedIntangibleAssetsGross	1300000000	USD
CY2016Q4	us-gaap	Finite Lived Intangible Assets Net FiniteLivedIntangibleAssetsNet	1110000000	USD
CY2017Q4	us-gaap	Finite Lived Intangible Assets Net FiniteLivedIntangibleAssetsNet	1149000000	USD
CY2015	us-gaap	Foreign Currency Transaction Loss Before Tax ForeignCurrencyTransactionLossBeforeTax	0	USD
CY2016	us-gaap	Foreign Currency Transaction Loss Before Tax ForeignCurrencyTransactionLossBeforeTax	13000000	USD
CY2017	us-gaap	Foreign Currency Transaction Loss Before Tax ForeignCurrencyTransactionLossBeforeTax	-25000000	USD
CY2016Q4	us-gaap	Forward Contract Indexed To Issuers Equity Forward Rate ForwardContractIndexedToIssuersEquityForwardRate	124.00
CY2015	us-gaap	Gain Loss On Disposition Of Assets1 GainLossOnDispositionOfAssets1	89000000	USD
CY2016	us-gaap	Gain Loss On Disposition Of Assets1 GainLossOnDispositionOfAssets1	490000000	USD
CY2017	us-gaap	Gain Loss On Disposition Of Assets1 GainLossOnDispositionOfAssets1	1225000000	USD
CY2015	us-gaap	Gain Loss On Sale Of Investments GainLossOnSaleOfInvestments	90000000	USD
CY2016	us-gaap	Gain Loss On Sale Of Investments GainLossOnSaleOfInvestments	40000000	USD
CY2017	us-gaap	Gain Loss On Sale Of Investments GainLossOnSaleOfInvestments	114000000	USD
CY2016Q4	us-gaap	Goodwill Goodwill	779000000	USD
CY2017Q4	us-gaap	Goodwill Goodwill	764000000	USD
CY2015	us-gaap	Impairment Of Long Lived Assets Held For Use ImpairmentOfLongLivedAssetsHeldForUse	2000000	USD
CY2016	us-gaap	Impairment Of Long Lived Assets Held For Use ImpairmentOfLongLivedAssetsHeldForUse	7000000	USD
CY2017	us-gaap	Impairment Of Long Lived Assets Held For Use ImpairmentOfLongLivedAssetsHeldForUse	446000000	USD
CY2015	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	3990000000	USD
CY2016	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	4388000000	USD
CY2017	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	4667000000	USD
CY2015	us-gaap	Income Loss From Equity Method Investments IncomeLossFromEquityMethodInvestments	107000000	USD
CY2016	us-gaap	Income Loss From Equity Method Investments IncomeLossFromEquityMethodInvestments	148000000	USD
CY2017	us-gaap	Income Loss From Equity Method Investments IncomeLossFromEquityMethodInvestments	141000000	USD
CY2015	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	1228000000	USD
CY2016	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	1383000000	USD
CY2017	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	-653000000	USD
CY2015	us-gaap	Income Taxes Paid Net IncomeTaxesPaidNet	33000000	USD
CY2016	us-gaap	Income Taxes Paid Net IncomeTaxesPaidNet	91000000	USD
CY2017	us-gaap	Income Taxes Paid Net IncomeTaxesPaidNet	142000000	USD
CY2015	us-gaap	Increase Decrease In Other Current Assets IncreaseDecreaseInOtherCurrentAssets	-66000000	USD
CY2016	us-gaap	Increase Decrease In Other Current Assets IncreaseDecreaseInOtherCurrentAssets	162000000	USD
CY2017	us-gaap	Increase Decrease In Other Current Assets IncreaseDecreaseInOtherCurrentAssets	353000000	USD
CY2015	us-gaap	Increase Decrease In Other Current Liabilities IncreaseDecreaseInOtherCurrentLiabilities	64000000	USD
CY2016	us-gaap	Increase Decrease In Other Current Liabilities IncreaseDecreaseInOtherCurrentLiabilities	-24000000	USD
CY2017	us-gaap	Increase Decrease In Other Current Liabilities IncreaseDecreaseInOtherCurrentLiabilities	766000000	USD
CY2015	us-gaap	Increase Decrease In Other Noncurrent Assets IncreaseDecreaseInOtherNoncurrentAssets	109000000	USD
CY2016	us-gaap	Increase Decrease In Other Noncurrent Assets IncreaseDecreaseInOtherNoncurrentAssets	58000000	USD
CY2017	us-gaap	Increase Decrease In Other Noncurrent Assets IncreaseDecreaseInOtherNoncurrentAssets	60000000	USD
CY2015	us-gaap	Increase Decrease In Other Noncurrent Liabilities IncreaseDecreaseInOtherNoncurrentLiabilities	-123000000	USD
CY2016	us-gaap	Increase Decrease In Other Noncurrent Liabilities IncreaseDecreaseInOtherNoncurrentLiabilities	-12000000	USD
CY2017	us-gaap	Increase Decrease In Other Noncurrent Liabilities IncreaseDecreaseInOtherNoncurrentLiabilities	-7000000	USD
CY2015	us-gaap	Increase Decrease In Recoverable Property Damage Costs IncreaseDecreaseInRecoverablePropertyDamageCosts	0	USD
CY2016	us-gaap	Increase Decrease In Recoverable Property Damage Costs IncreaseDecreaseInRecoverablePropertyDamageCosts	223000000	USD
CY2017	us-gaap	Increase Decrease In Recoverable Property Damage Costs IncreaseDecreaseInRecoverablePropertyDamageCosts	108000000	USD
CY2016Q4	us-gaap	Indefinite Lived Intangible Assets Excluding Goodwill IndefiniteLivedIntangibleAssetsExcludingGoodwill	143000000	USD
CY2017Q4	us-gaap	Indefinite Lived Intangible Assets Excluding Goodwill IndefiniteLivedIntangibleAssetsExcludingGoodwill	138000000	USD
CY2015	us-gaap	Interest Paid Net InterestPaidNet	1143000000	USD
CY2016	us-gaap	Interest Paid Net InterestPaidNet	1193000000	USD
CY2017	us-gaap	Interest Paid Net InterestPaidNet	1184000000	USD
CY2016Q4	us-gaap	Inventory Net InventoryNet	1289000000	USD
CY2017Q4	us-gaap	Inventory Net InventoryNet	1273000000	USD
CY2016Q4	us-gaap	Investments And Other Noncurrent Assets InvestmentsAndOtherNoncurrentAssets	2482000000	USD
CY2017Q4	us-gaap	Investments And Other Noncurrent Assets InvestmentsAndOtherNoncurrentAssets	2959000000	USD
CY2016Q4	us-gaap	Liabilities And Stockholders Equity LiabilitiesAndStockholdersEquity	89993000000	USD
CY2017Q4	us-gaap	Liabilities And Stockholders Equity LiabilitiesAndStockholdersEquity	97827000000	USD
CY2016Q4	us-gaap	Liabilities Current LiabilitiesCurrent	10919000000	USD
CY2017Q4	us-gaap	Liabilities Current LiabilitiesCurrent	11232000000	USD
CY2016Q4	us-gaap	Liabilities Noncurrent LiabilitiesNoncurrent	25925000000	USD
CY2017Q4	us-gaap	Liabilities Noncurrent LiabilitiesNoncurrent	25634000000	USD
CY2016Q4	us-gaap	Long Term Debt Current LongTermDebtCurrent	2604000000	USD
CY2017Q4	us-gaap	Long Term Debt Current LongTermDebtCurrent	1676000000	USD
CY2017Q4	us-gaap	Long Term Debt Maturities Repayments Of Principal In Next Twelve Months LongTermDebtMaturitiesRepaymentsOfPrincipalInNextTwelveMonths	1676000000	USD
CY2017Q4	us-gaap	Long Term Debt Maturities Repayments Of Principal In Year Five LongTermDebtMaturitiesRepaymentsOfPrincipalInYearFive	1137000000	USD
CY2017Q4	us-gaap	Long Term Debt Maturities Repayments Of Principal In Year Four LongTermDebtMaturitiesRepaymentsOfPrincipalInYearFour	2697000000	USD
CY2017Q4	us-gaap	Long Term Debt Maturities Repayments Of Principal In Year Three LongTermDebtMaturitiesRepaymentsOfPrincipalInYearThree	3131000000	USD
CY2017Q4	us-gaap	Long Term Debt Maturities Repayments Of Principal In Year Two LongTermDebtMaturitiesRepaymentsOfPrincipalInYearTwo	2206000000	USD
CY2016Q4	us-gaap	Long Term Debt Noncurrent LongTermDebtNoncurrent	27818000000	USD
CY2017Q4	us-gaap	Long Term Debt Noncurrent LongTermDebtNoncurrent	31463000000	USD
CY2016Q4	us-gaap	Minority Interest MinorityInterest	990000000	USD
CY2017Q4	us-gaap	Minority Interest MinorityInterest	1290000000	USD
CY2015	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	1897000000	USD
CY2016	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	2500000000	USD
CY2017	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	2933000000	USD
CY2015	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-7996000000	USD
CY2016	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-8046000000	USD
CY2017	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-8918000000	USD
CY2015	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	6089000000	USD
CY2016	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	6293000000	USD
CY2017	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	6413000000	USD
CY2015	us-gaap	Net Income Loss NetIncomeLoss	2752000000	USD
CY2016Q1	us-gaap	Net Income Loss NetIncomeLoss	653000000	USD
CY2016Q2	us-gaap	Net Income Loss NetIncomeLoss	540000000	USD
CY2016Q3	us-gaap	Net Income Loss NetIncomeLoss	753000000	USD
CY2016Q4	us-gaap	Net Income Loss NetIncomeLoss	966000000	USD
CY2016	us-gaap	Net Income Loss NetIncomeLoss	2912000000	USD
CY2017Q1	us-gaap	Net Income Loss NetIncomeLoss	1583000000	USD
CY2017Q2	us-gaap	Net Income Loss NetIncomeLoss	793000000	USD
CY2017Q3	us-gaap	Net Income Loss NetIncomeLoss	847000000	USD
CY2017Q4	us-gaap	Net Income Loss NetIncomeLoss	2155000000	USD
CY2017	us-gaap	Net Income Loss NetIncomeLoss	5378000000	USD
CY2015	us-gaap	Net Income Loss Attributable To Noncontrolling Interest NetIncomeLossAttributableToNoncontrollingInterest	10000000	USD
CY2016	us-gaap	Net Income Loss Attributable To Noncontrolling Interest NetIncomeLossAttributableToNoncontrollingInterest	93000000	USD
CY2017	us-gaap	Net Income Loss Attributable To Noncontrolling Interest NetIncomeLossAttributableToNoncontrollingInterest	-58000000	USD
CY2015	us-gaap	Nonoperating Income Expense NonoperatingIncomeExpense	-642000000	USD
CY2016	us-gaap	Nonoperating Income Expense NonoperatingIncomeExpense	-220000000	USD
CY2017	us-gaap	Nonoperating Income Expense NonoperatingIncomeExpense	-659000000	USD
CY2016Q4	us-gaap	Notes Payable Current NotesPayableCurrent	150000000	USD
CY2017Q4	us-gaap	Notes Payable Current NotesPayableCurrent	255000000	USD
CY2015	us-gaap	Operating Expenses OperatingExpenses	12854000000	USD
CY2016	us-gaap	Operating Expenses OperatingExpenses	11547000000	USD
CY2017	us-gaap	Operating Expenses OperatingExpenses	11869000000	USD
CY2015	us-gaap	Operating Income Loss OperatingIncomeLoss	4632000000	USD
CY2016Q1	us-gaap	Operating Income Loss OperatingIncomeLoss	1234000000	USD
CY2016Q2	us-gaap	Operating Income Loss OperatingIncomeLoss	1169000000	USD
CY2016Q3	us-gaap	Operating Income Loss OperatingIncomeLoss	1279000000	USD
CY2016Q4	us-gaap	Operating Income Loss OperatingIncomeLoss	926000000	USD
CY2016	us-gaap	Operating Income Loss OperatingIncomeLoss	4608000000	USD
CY2017Q1	us-gaap	Operating Income Loss OperatingIncomeLoss	2405000000	USD
CY2017Q2	us-gaap	Operating Income Loss OperatingIncomeLoss	1285000000	USD
CY2017Q3	us-gaap	Operating Income Loss OperatingIncomeLoss	1399000000	USD
CY2017Q4	us-gaap	Operating Income Loss OperatingIncomeLoss	236000000	USD
CY2017	us-gaap	Operating Income Loss OperatingIncomeLoss	5326000000	USD
CY2016Q4	us-gaap	Other Assets OtherAssets	15672000000	USD
CY2017Q4	us-gaap	Other Assets OtherAssets	18254000000	USD
CY2016Q4	us-gaap	Other Assets Current OtherAssetsCurrent	528000000	USD
CY2017Q4	us-gaap	Other Assets Current OtherAssetsCurrent	468000000	USD
CY2016Q4	us-gaap	Other Assets Noncurrent OtherAssetsNoncurrent	3335000000	USD
CY2017Q4	us-gaap	Other Assets Noncurrent OtherAssetsNoncurrent	4081000000	USD
CY2015	us-gaap	Other Comprehensive Income Loss Before Reclassifications Net Of Tax OtherComprehensiveIncomeLossBeforeReclassificationsNetOfTax	-164000000	USD
CY2016	us-gaap	Other Comprehensive Income Loss Before Reclassifications Net Of Tax OtherComprehensiveIncomeLossBeforeReclassificationsNetOfTax	45000000	USD
CY2017	us-gaap	Other Comprehensive Income Loss Before Reclassifications Net Of Tax OtherComprehensiveIncomeLossBeforeReclassificationsNetOfTax	197000000	USD
CY2015	us-gaap	Other Comprehensive Income Loss Foreign Currency Transaction And Translation Adjustment Net Of Tax OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax	-27000000	USD
CY2016	us-gaap	Other Comprehensive Income Loss Foreign Currency Transaction And Translation Adjustment Net Of Tax OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax	-5000000	USD
CY2017	us-gaap	Other Comprehensive Income Loss Foreign Currency Transaction And Translation Adjustment Net Of Tax OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax	24000000	USD
CY2015	us-gaap	Other Comprehensive Income Loss Foreign Currency Translation Adjustment Tax OtherComprehensiveIncomeLossForeignCurrencyTranslationAdjustmentTax	-2000000	USD
CY2016	us-gaap	Other Comprehensive Income Loss Foreign Currency Translation Adjustment Tax OtherComprehensiveIncomeLossForeignCurrencyTranslationAdjustmentTax	-2000000	USD
CY2017	us-gaap	Other Comprehensive Income Loss Foreign Currency Translation Adjustment Tax OtherComprehensiveIncomeLossForeignCurrencyTranslationAdjustmentTax	1000000	USD
CY2015	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	-138000000	USD
CY2016	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	97000000	USD
CY2017	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	193000000	USD
CY2015	us-gaap	Other Comprehensive Income Loss Net Of Tax Portion Attributable To Noncontrolling Interest OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToNoncontrollingInterest	-11000000	USD
CY2016	us-gaap	Other Comprehensive Income Loss Net Of Tax Portion Attributable To Noncontrolling Interest OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToNoncontrollingInterest	0	USD
CY2017	us-gaap	Other Comprehensive Income Loss Net Of Tax Portion Attributable To Noncontrolling Interest OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToNoncontrollingInterest	12000000	USD
CY2015	us-gaap	Other Comprehensive Income Loss Pension And Other Postretirement Benefit Plans Adjustment Net Of Tax OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentNetOfTax	42000000	USD
CY2016	us-gaap	Other Comprehensive Income Loss Pension And Other Postretirement Benefit Plans Adjustment Net Of Tax OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentNetOfTax	21000000	USD
CY2017	us-gaap	Other Comprehensive Income Loss Pension And Other Postretirement Benefit Plans Adjustment Net Of Tax OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentNetOfTax	-44000000	USD
CY2015	us-gaap	Other Comprehensive Income Loss Pension And Other Postretirement Benefit Plans Tax OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansTax	-26000000	USD
CY2016	us-gaap	Other Comprehensive Income Loss Pension And Other Postretirement Benefit Plans Tax OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansTax	-13000000	USD
CY2017	us-gaap	Other Comprehensive Income Loss Pension And Other Postretirement Benefit Plans Tax OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansTax	28000000	USD
CY2015	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci For Sale Of Securities Net Of Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesNetOfTax	37000000	USD
CY2016	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci For Sale Of Securities Net Of Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesNetOfTax	18000000	USD
CY2017	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci For Sale Of Securities Net Of Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesNetOfTax	36000000	USD
CY2015	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci For Sale Of Securities Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesTax	-33000000	USD
CY2016	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci For Sale Of Securities Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesTax	-13000000	USD
CY2017	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci For Sale Of Securities Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesTax	-25000000	USD
CY2015	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci On Derivatives Net Of Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIOnDerivativesNetOfTax	-63000000	USD
CY2016	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci On Derivatives Net Of Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIOnDerivativesNetOfTax	-70000000	USD
CY2017	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci On Derivatives Net Of Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIOnDerivativesNetOfTax	-32000000	USD
CY2015	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci On Derivatives Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIOnDerivativesTax	25000000	USD
CY2016	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci On Derivatives Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIOnDerivativesTax	32000000	USD
CY2017	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci On Derivatives Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIOnDerivativesTax	13000000	USD
CY2015	us-gaap	Other Comprehensive Income Unrealized Gain Loss On Derivatives Arising During Period Net Of Tax OtherComprehensiveIncomeUnrealizedGainLossOnDerivativesArisingDuringPeriodNetOfTax	-88000000	USD
CY2016	us-gaap	Other Comprehensive Income Unrealized Gain Loss On Derivatives Arising During Period Net Of Tax OtherComprehensiveIncomeUnrealizedGainLossOnDerivativesArisingDuringPeriodNetOfTax	0	USD
CY2017	us-gaap	Other Comprehensive Income Unrealized Gain Loss On Derivatives Arising During Period Net Of Tax OtherComprehensiveIncomeUnrealizedGainLossOnDerivativesArisingDuringPeriodNetOfTax	0	USD
CY2015	us-gaap	Other Comprehensive Income Unrealized Gain Loss On Derivatives Arising During Period Tax OtherComprehensiveIncomeUnrealizedGainLossOnDerivativesArisingDuringPeriodTax	-37000000	USD
CY2016	us-gaap	Other Comprehensive Income Unrealized Gain Loss On Derivatives Arising During Period Tax OtherComprehensiveIncomeUnrealizedGainLossOnDerivativesArisingDuringPeriodTax	0	USD
CY2017	us-gaap	Other Comprehensive Income Unrealized Gain Loss On Derivatives Arising During Period Tax OtherComprehensiveIncomeUnrealizedGainLossOnDerivativesArisingDuringPeriodTax	0	USD
CY2015	us-gaap	Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Net Of Tax OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodNetOfTax	-7000000	USD
CY2016	us-gaap	Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Net Of Tax OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodNetOfTax	69000000	USD
CY2017	us-gaap	Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Net Of Tax OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodNetOfTax	127000000	USD
CY2015	us-gaap	Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Tax OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodTax	-8000000	USD
CY2016	us-gaap	Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Tax OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodTax	50000000	USD
CY2017	us-gaap	Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Tax OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodTax	94000000	USD
CY2016Q4	us-gaap	Other Liabilities OtherLiabilities	12088000000	USD
CY2017Q4	us-gaap	Other Liabilities OtherLiabilities	16849000000	USD
CY2016Q4	us-gaap	Other Liabilities Current OtherLiabilitiesCurrent	1226000000	USD
CY2017Q4	us-gaap	Other Liabilities Current OtherLiabilitiesCurrent	1548000000	USD
CY2016Q4	us-gaap	Other Liabilities Noncurrent OtherLiabilitiesNoncurrent	2049000000	USD
CY2017Q4	us-gaap	Other Liabilities Noncurrent OtherLiabilitiesNoncurrent	2146000000	USD
CY2015	us-gaap	Other Nonoperating Income Expense OtherNonoperatingIncomeExpense	40000000	USD
CY2016	us-gaap	Other Nonoperating Income Expense OtherNonoperatingIncomeExpense	42000000	USD
CY2017	us-gaap	Other Nonoperating Income Expense OtherNonoperatingIncomeExpense	21000000	USD
CY2015	us-gaap	Other Operating Activities Cash Flow Statement OtherOperatingActivitiesCashFlowStatement	49000000	USD
CY2016	us-gaap	Other Operating Activities Cash Flow Statement OtherOperatingActivitiesCashFlowStatement	-111000000	USD
CY2017	us-gaap	Other Operating Activities Cash Flow Statement OtherOperatingActivitiesCashFlowStatement	90000000	USD
CY2016Q4	us-gaap	Other Receivables Net Current OtherReceivablesNetCurrent	655000000	USD
CY2017Q4	us-gaap	Other Receivables Net Current OtherReceivablesNetCurrent	517000000	USD
CY2015	us-gaap	Payments For Proceeds From Nuclear Fuel PaymentsForProceedsFromNuclearFuel	361000000	USD
CY2016	us-gaap	Payments For Proceeds From Nuclear Fuel PaymentsForProceedsFromNuclearFuel	283000000	USD
CY2017Q3	us-gaap	Profit Loss ProfitLoss	856000000	USD
CY2017Q4	us-gaap	Profit Loss ProfitLoss	2068000000	USD
CY2017	us-gaap	Profit Loss ProfitLoss	5320000000	USD
CY2015Q4	us-gaap	Property Plant And Equipment Gross PropertyPlantAndEquipmentGross	80330000000	USD
CY2017	us-gaap	Payments For Proceeds From Nuclear Fuel PaymentsForProceedsFromNuclearFuel	197000000	USD
CY2015	us-gaap	Payments For Proceeds From Other Investing Activities PaymentsForProceedsFromOtherInvestingActivities	-107000000	USD
CY2016	us-gaap	Payments For Proceeds From Other Investing Activities PaymentsForProceedsFromOtherInvestingActivities	-5000000	USD
CY2017	us-gaap	Payments For Proceeds From Other Investing Activities PaymentsForProceedsFromOtherInvestingActivities	-149000000	USD
CY2015	us-gaap	Payments Of Dividends PaymentsOfDividends	1385000000	USD
CY2016	us-gaap	Payments Of Dividends PaymentsOfDividends	1612000000	USD
CY2017	us-gaap	Payments Of Dividends PaymentsOfDividends	1845000000	USD
CY2015	us-gaap	Payments To Invest In Decommissioning Fund PaymentsToInvestInDecommissioningFund	4982000000	USD
CY2016	us-gaap	Payments To Invest In Decommissioning Fund PaymentsToInvestInDecommissioningFund	3829000000	USD
CY2017	us-gaap	Payments To Invest In Decommissioning Fund PaymentsToInvestInDecommissioningFund	3244000000	USD
CY2015	us-gaap	Proceeds From Decommissioning Fund ProceedsFromDecommissioningFund	4851000000	USD
CY2016	us-gaap	Proceeds From Decommissioning Fund ProceedsFromDecommissioningFund	3776000000	USD
CY2017	us-gaap	Proceeds From Decommissioning Fund ProceedsFromDecommissioningFund	3207000000	USD
CY2015	us-gaap	Proceeds From Issuance Of Common Stock ProceedsFromIssuanceOfCommonStock	1298000000	USD
CY2016	us-gaap	Proceeds From Issuance Of Common Stock ProceedsFromIssuanceOfCommonStock	537000000	USD
CY2017	us-gaap	Proceeds From Issuance Of Common Stock ProceedsFromIssuanceOfCommonStock	55000000	USD
CY2015	us-gaap	Proceeds From Issuance Of Convertible Preferred Stock ProceedsFromIssuanceOfConvertiblePreferredStock	0	USD
CY2016	us-gaap	Proceeds From Issuance Of Convertible Preferred Stock ProceedsFromIssuanceOfConvertiblePreferredStock	0	USD
CY2017	us-gaap	Proceeds From Issuance Of Convertible Preferred Stock ProceedsFromIssuanceOfConvertiblePreferredStock	548000000	USD
CY2015	us-gaap	Proceeds From Issuance Of Long Term Debt ProceedsFromIssuanceOfLongTermDebt	5772000000	USD
CY2016	us-gaap	Proceeds From Issuance Of Long Term Debt ProceedsFromIssuanceOfLongTermDebt	5657000000	USD
CY2017	us-gaap	Proceeds From Issuance Of Long Term Debt ProceedsFromIssuanceOfLongTermDebt	8354000000	USD
CY2015	us-gaap	Proceeds From Minority Shareholders ProceedsFromMinorityShareholders	345000000	USD
CY2016	us-gaap	Proceeds From Minority Shareholders ProceedsFromMinorityShareholders	645000000	USD
CY2017	us-gaap	Proceeds From Minority Shareholders ProceedsFromMinorityShareholders	0	USD
CY2015	us-gaap	Proceeds From Other Short Term Debt ProceedsFromOtherShortTermDebt	1225000000	USD
CY2016	us-gaap	Proceeds From Other Short Term Debt ProceedsFromOtherShortTermDebt	500000000	USD
CY2017	us-gaap	Proceeds From Other Short Term Debt ProceedsFromOtherShortTermDebt	450000000	USD
CY2015	us-gaap	Proceeds From Payments For Other Financing Activities ProceedsFromPaymentsForOtherFinancingActivities	-221000000	USD
CY2016	us-gaap	Proceeds From Payments For Other Financing Activities ProceedsFromPaymentsForOtherFinancingActivities	-363000000	USD
CY2017	us-gaap	Proceeds From Payments For Other Financing Activities ProceedsFromPaymentsForOtherFinancingActivities	-680000000	USD
CY2015	us-gaap	Proceeds From Repayments Of Commercial Paper ProceedsFromRepaymentsOfCommercialPaper	-768000000	USD
CY2016	us-gaap	Proceeds From Repayments Of Commercial Paper ProceedsFromRepaymentsOfCommercialPaper	-106000000	USD
CY2017	us-gaap	Proceeds From Repayments Of Commercial Paper ProceedsFromRepaymentsOfCommercialPaper	1419000000	USD
CY2015	us-gaap	Proceeds From Sale Of Productive Assets ProceedsFromSaleOfProductiveAssets	0	USD
CY2016	us-gaap	Proceeds From Sale Of Productive Assets ProceedsFromSaleOfProductiveAssets	0	USD
CY2017	us-gaap	Proceeds From Sale Of Productive Assets ProceedsFromSaleOfProductiveAssets	1454000000	USD
CY2015	us-gaap	Profit Loss ProfitLoss	2762000000	USD
CY2016Q1	us-gaap	Profit Loss ProfitLoss	654000000	USD
CY2016Q2	us-gaap	Profit Loss ProfitLoss	544000000	USD
CY2016Q3	us-gaap	Profit Loss ProfitLoss	789000000	USD
CY2016Q4	us-gaap	Profit Loss ProfitLoss	1017000000	USD
CY2016	us-gaap	Profit Loss ProfitLoss	3005000000	USD
CY2017Q1	us-gaap	Profit Loss ProfitLoss	1591000000	USD
CY2017Q2	us-gaap	Profit Loss ProfitLoss	804000000	USD
CY2016Q4	us-gaap	Property Plant And Equipment Gross PropertyPlantAndEquipmentGross	87013000000	USD
CY2017Q4	us-gaap	Property Plant And Equipment Gross PropertyPlantAndEquipmentGross	93783000000	USD
CY2016Q4	us-gaap	Property Plant And Equipment Net PropertyPlantAndEquipmentNet	66912000000	USD
CY2017Q4	us-gaap	Property Plant And Equipment Net PropertyPlantAndEquipmentNet	72416000000	USD
CY2015	us-gaap	Public Utilities Allowance For Funds Used During Construction Capitalized Cost Of Equity PublicUtilitiesAllowanceForFundsUsedDuringConstructionCapitalizedCostOfEquity	70000000	USD
CY2016	us-gaap	Public Utilities Allowance For Funds Used During Construction Capitalized Cost Of Equity PublicUtilitiesAllowanceForFundsUsedDuringConstructionCapitalizedCostOfEquity	86000000	USD
CY2017	us-gaap	Public Utilities Allowance For Funds Used During Construction Capitalized Cost Of Equity PublicUtilitiesAllowanceForFundsUsedDuringConstructionCapitalizedCostOfEquity	92000000	USD
CY2016Q4	us-gaap	Receivables Net Current ReceivablesNetCurrent	2439000000	USD
CY2017Q4	us-gaap	Receivables Net Current ReceivablesNetCurrent	2737000000	USD
CY2015	us-gaap	Reclassification From Accumulated Other Comprehensive Income Current Period Net Of Tax ReclassificationFromAccumulatedOtherComprehensiveIncomeCurrentPeriodNetOfTax	-26000000	USD
CY2016	us-gaap	Reclassification From Accumulated Other Comprehensive Income Current Period Net Of Tax ReclassificationFromAccumulatedOtherComprehensiveIncomeCurrentPeriodNetOfTax	-52000000	USD
CY2017	us-gaap	Reclassification From Accumulated Other Comprehensive Income Current Period Net Of Tax ReclassificationFromAccumulatedOtherComprehensiveIncomeCurrentPeriodNetOfTax	4000000	USD
CY2015	us-gaap	Regulated And Unregulated Operating Revenue RegulatedAndUnregulatedOperatingRevenue	17486000000	USD
CY2016Q1	us-gaap	Regulated And Unregulated Operating Revenue RegulatedAndUnregulatedOperatingRevenue	3835000000	USD
CY2016Q2	us-gaap	Regulated And Unregulated Operating Revenue RegulatedAndUnregulatedOperatingRevenue	3817000000	USD
CY2016Q3	us-gaap	Regulated And Unregulated Operating Revenue RegulatedAndUnregulatedOperatingRevenue	4805000000	USD
CY2016Q4	us-gaap	Regulated And Unregulated Operating Revenue RegulatedAndUnregulatedOperatingRevenue	3699000000	USD
CY2016	us-gaap	Regulated And Unregulated Operating Revenue RegulatedAndUnregulatedOperatingRevenue	16155000000	USD
CY2017Q1	us-gaap	Regulated And Unregulated Operating Revenue RegulatedAndUnregulatedOperatingRevenue	3972000000	USD
CY2017Q2	us-gaap	Regulated And Unregulated Operating Revenue RegulatedAndUnregulatedOperatingRevenue	4404000000	USD
CY2017Q3	us-gaap	Regulated And Unregulated Operating Revenue RegulatedAndUnregulatedOperatingRevenue	4808000000	USD
CY2017Q4	us-gaap	Regulated And Unregulated Operating Revenue RegulatedAndUnregulatedOperatingRevenue	4010000000	USD
CY2017	us-gaap	Regulated And Unregulated Operating Revenue RegulatedAndUnregulatedOperatingRevenue	17195000000	USD
CY2016Q4	us-gaap	Regulatory Assets Current RegulatoryAssetsCurrent	524000000	USD
CY2017Q4	us-gaap	Regulatory Assets Current RegulatoryAssetsCurrent	336000000	USD
CY2016Q4	us-gaap	Regulatory Assets Noncurrent RegulatoryAssetsNoncurrent	1894000000	USD
CY2017Q4	us-gaap	Regulatory Assets Noncurrent RegulatoryAssetsNoncurrent	2469000000	USD
CY2016Q4	us-gaap	Regulatory Liability Current RegulatoryLiabilityCurrent	299000000	USD
CY2017Q4	us-gaap	Regulatory Liability Current RegulatoryLiabilityCurrent	346000000	USD
CY2016Q4	us-gaap	Regulatory Liability Noncurrent RegulatoryLiabilityNoncurrent	4906000000	USD
CY2017Q4	us-gaap	Regulatory Liability Noncurrent RegulatoryLiabilityNoncurrent	8765000000	USD
CY2015	us-gaap	Repayments Of Long Term Debt RepaymentsOfLongTermDebt	3972000000	USD
CY2016	us-gaap	Repayments Of Long Term Debt RepaymentsOfLongTermDebt	3310000000	USD
CY2017	us-gaap	Repayments Of Long Term Debt RepaymentsOfLongTermDebt	6780000000	USD
CY2015	us-gaap	Repayments Of Other Short Term Debt RepaymentsOfOtherShortTermDebt	813000000	USD
CY2016	us-gaap	Repayments Of Other Short Term Debt RepaymentsOfOtherShortTermDebt	662000000	USD
CY2017	us-gaap	Repayments Of Other Short Term Debt RepaymentsOfOtherShortTermDebt	2000000	USD
CY2016Q4	us-gaap	Restricted Cash And Cash Equivalents At Carrying Value RestrictedCashAndCashEquivalentsAtCarryingValue	237000000	USD
CY2017Q4	us-gaap	Restricted Cash And Cash Equivalents At Carrying Value RestrictedCashAndCashEquivalentsAtCarryingValue	269000000	USD
CY2016Q4	us-gaap	Retained Earnings Accumulated Deficit RetainedEarningsAccumulatedDeficit	15458000000	USD
CY2017Q4	us-gaap	Retained Earnings Accumulated Deficit RetainedEarningsAccumulatedDeficit	18992000000	USD
CY2017Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Number Of Shares Authorized ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAuthorized	16000000	shares
CY2016Q4	us-gaap	Short Term Debt Weighted Average Interest Rate ShortTermDebtWeightedAverageInterestRate	0.0107
CY2017Q4	us-gaap	Short Term Debt Weighted Average Interest Rate ShortTermDebtWeightedAverageInterestRate	0.0168
CY2015	us-gaap	State And Local Income Tax Expense Benefit Continuing Operations StateAndLocalIncomeTaxExpenseBenefitContinuingOperations	24000000	USD
CY2016	us-gaap	State And Local Income Tax Expense Benefit Continuing Operations StateAndLocalIncomeTaxExpenseBenefitContinuingOperations	236000000	USD
CY2017	us-gaap	State And Local Income Tax Expense Benefit Continuing Operations StateAndLocalIncomeTaxExpenseBenefitContinuingOperations	287000000	USD
CY2016Q4	us-gaap	Stockholders Equity StockholdersEquity	24341000000	USD
CY2017Q4	us-gaap	Stockholders Equity StockholdersEquity	28208000000	USD
CY2014Q4	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	20168000000	USD
CY2015Q4	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	23112000000	USD
CY2016Q4	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	25331000000	USD
CY2017Q4	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	29498000000	USD
CY2015	us-gaap	Taxes Excluding Income And Excise Taxes TaxesExcludingIncomeAndExciseTaxes	1395000000	USD
CY2016	us-gaap	Taxes Excluding Income And Excise Taxes TaxesExcludingIncomeAndExciseTaxes	1343000000	USD
CY2017	us-gaap	Taxes Excluding Income And Excise Taxes TaxesExcludingIncomeAndExciseTaxes	1455000000	USD
CY2015	us-gaap	Unrealized Gain Loss On Derivatives And Commodity Contracts UnrealizedGainLossOnDerivativesAndCommodityContracts	337000000	USD
CY2016	us-gaap	Unrealized Gain Loss On Derivatives And Commodity Contracts UnrealizedGainLossOnDerivativesAndCommodityContracts	44000000	USD
CY2017	us-gaap	Unrealized Gain Loss On Derivatives And Commodity Contracts UnrealizedGainLossOnDerivativesAndCommodityContracts	-436000000	USD
CY2017Q4	us-gaap	Unrecognized Tax Benefits That Would Impact Effective Tax Rate UnrecognizedTaxBenefitsThatWouldImpactEffectiveTaxRate	71000000	USD
CY2015	us-gaap	Weighted Average Number Diluted Shares Outstanding Adjustment WeightedAverageNumberDilutedSharesOutstandingAdjustment	3500000	shares
CY2016	us-gaap	Weighted Average Number Diluted Shares Outstanding Adjustment WeightedAverageNumberDilutedSharesOutstandingAdjustment	2700000	shares
CY2017	us-gaap	Weighted Average Number Diluted Shares Outstanding Adjustment WeightedAverageNumberDilutedSharesOutstandingAdjustment	3700000	shares
CY2015	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	454000000	shares
CY2016	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	465800000	shares
CY2017	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	472500000	shares
CY2015	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	450500000	shares
CY2016	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	463100000	shares
CY2017	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	468800000	shares

Files In Submission

Name	View Source	Status
0000753308-18-000013-index-headers.html	Edgar Link	pending
0000753308-18-000013-index.html	Edgar Link	pending
0000753308-18-000013.txt	Edgar Link	pending
0000753308-18-000013-xbrl.zip	Edgar Link	pending
chart-4c0914b6588a5df8cb5.jpg	Edgar Link	pending
chart-687b6d91f27c1ac344a.jpg	Edgar Link	pending
chart-b18ec0f8bcf8206c136.jpg	Edgar Link	pending
chart-ef984ff76b3fb72816f.jpg	Edgar Link	pending
compareresidentialbill2017.jpg	Edgar Link	pending
customeraccounts.jpg	Edgar Link	pending
FilingSummary.xml	Edgar Link	unprocessable
Financial_Report.xlsx	Edgar Link	pending
fpl.jpg	Edgar Link	pending
fplserviceterritory2017.jpg	Edgar Link	pending
nee-12312017ex10d.htm	Edgar Link	pending
nee-12312017ex10e.htm	Edgar Link	pending
nee-12312017ex10jj.htm	Edgar Link	pending
nee-12312017ex12a.htm	Edgar Link	pending
nee-12312017ex12b.htm	Edgar Link	pending
nee-12312017ex21.htm	Edgar Link	pending
nee-12312017ex23.htm	Edgar Link	pending
nee-12312017ex31a.htm	Edgar Link	pending
nee-12312017ex31b.htm	Edgar Link	pending
nee-12312017ex31c.htm	Edgar Link	pending
nee-12312017ex31d.htm	Edgar Link	pending
nee-12312017ex32a.htm	Edgar Link	pending
nee-12312017ex32b.htm	Edgar Link	pending
nee-12312017ex4b.htm	Edgar Link	pending
nee-12312017x10k.htm	Edgar Link	pending
nee-20171231.xml	Edgar Link	completed
nee-20171231.xsd	Edgar Link	pending
nee-20171231_cal.xml	Edgar Link	unprocessable
nee-20171231_def.xml	Edgar Link	unprocessable
nee-20171231_lab.xml	Edgar Link	unprocessable
nee-20171231_pre.xml	Edgar Link	unprocessable
neeorganizationalchart_2017.jpg	Edgar Link	pending
neergeneratingfacilities2017.jpg	Edgar Link	pending
neeriso2017.jpg	Edgar Link	pending
nexteraenergy.jpg	Edgar Link	pending
operatingrevenues2017.jpg	Edgar Link	pending
R1.htm	Edgar Link	pending
R10.htm	Edgar Link	pending
R11.htm	Edgar Link	pending
R12.htm	Edgar Link	pending
R13.htm	Edgar Link	pending
R14.htm	Edgar Link	pending
R15.htm	Edgar Link	pending
R16.htm	Edgar Link	pending
R17.htm	Edgar Link	pending
R18.htm	Edgar Link	pending
R19.htm	Edgar Link	pending
R2.htm	Edgar Link	pending
R20.htm	Edgar Link	pending
R21.htm	Edgar Link	pending
R22.htm	Edgar Link	pending
R23.htm	Edgar Link	pending
R24.htm	Edgar Link	pending
R25.htm	Edgar Link	pending
R26.htm	Edgar Link	pending
R27.htm	Edgar Link	pending
R28.htm	Edgar Link	pending
R29.htm	Edgar Link	pending
R3.htm	Edgar Link	pending
R30.htm	Edgar Link	pending
R31.htm	Edgar Link	pending
R32.htm	Edgar Link	pending
R33.htm	Edgar Link	pending
R34.htm	Edgar Link	pending
R35.htm	Edgar Link	pending
R36.htm	Edgar Link	pending
R37.htm	Edgar Link	pending
R38.htm	Edgar Link	pending
R39.htm	Edgar Link	pending
R4.htm	Edgar Link	pending
R40.htm	Edgar Link	pending
R41.htm	Edgar Link	pending
R42.htm	Edgar Link	pending
R43.htm	Edgar Link	pending
R44.htm	Edgar Link	pending
R45.htm	Edgar Link	pending
R46.htm	Edgar Link	pending
R47.htm	Edgar Link	pending
R48.htm	Edgar Link	pending
R49.htm	Edgar Link	pending
R5.htm	Edgar Link	pending
R50.htm	Edgar Link	pending
R51.htm	Edgar Link	pending
R52.htm	Edgar Link	pending
R53.htm	Edgar Link	pending
R54.htm	Edgar Link	pending
R55.htm	Edgar Link	pending
R56.htm	Edgar Link	pending
R57.htm	Edgar Link	pending
R58.htm	Edgar Link	pending
R59.htm	Edgar Link	pending
R6.htm	Edgar Link	pending
R60.htm	Edgar Link	pending
R61.htm	Edgar Link	pending
R62.htm	Edgar Link	pending
R63.htm	Edgar Link	pending
R64.htm	Edgar Link	pending
R65.htm	Edgar Link	pending
R66.htm	Edgar Link	pending
R67.htm	Edgar Link	pending
R68.htm	Edgar Link	pending
R69.htm	Edgar Link	pending
R7.htm	Edgar Link	pending
R70.htm	Edgar Link	pending
R71.htm	Edgar Link	pending
R72.htm	Edgar Link	pending
R73.htm	Edgar Link	pending
R74.htm	Edgar Link	pending
R75.htm	Edgar Link	pending
R76.htm	Edgar Link	pending
R77.htm	Edgar Link	pending
R78.htm	Edgar Link	pending
R79.htm	Edgar Link	pending
R8.htm	Edgar Link	pending
R80.htm	Edgar Link	pending
R81.htm	Edgar Link	pending
R82.htm	Edgar Link	pending
R83.htm	Edgar Link	pending
R84.htm	Edgar Link	pending
R85.htm	Edgar Link	pending
R86.htm	Edgar Link	pending
R87.htm	Edgar Link	pending
R88.htm	Edgar Link	pending
R89.htm	Edgar Link	pending
R9.htm	Edgar Link	pending
R90.htm	Edgar Link	pending
R91.htm	Edgar Link	pending
R92.htm	Edgar Link	pending
R93.htm	Edgar Link	pending
report.css	Edgar Link	pending
Show.js	Edgar Link	pending
totalreturn2017.jpg	Edgar Link	pending

Create your account

Find Stocks Worth Researching

Deeply Understand Businesses

Value Businesses Intelligently

$NEE
NEXTERA ENERGY INC Stock $nee

2016 Q4 Form 10-K Financial Statement

#000075330818000013 Filed on February 16, 2018

Income Statement

Balance Sheet

Cashflow Statement

Facts In Submission

Files In Submission

$NEE NEXTERA ENERGY INC Stock $nee

2016 Q4 Form 10-K Financial Statement

#000075330818000013 Filed on February 16, 2018

Income Statement

Balance Sheet

Cashflow Statement

Facts In Submission

Files In Submission

$NEE
NEXTERA ENERGY INC Stock $nee