2018 Q4 Form 10-K Financial Statement
#000103129619000010 Filed on February 19, 2019
Income Statement
| Concept | 2018 Q4 | 2017 Q4 | 2017 Q3 |
|---|---|---|---|
| Revenue | $2.710B | $2.681B | $2.910B |
| YoY Change | 1.08% | -20.56% | -25.71% |
| Cost Of Revenue | $716.0M | $711.0M | $774.0M |
| YoY Change | 0.7% | 123.58% | -20.94% |
| Gross Profit | $1.994B | $1.970B | $2.136B |
| YoY Change | 1.22% | -344.72% | -27.3% |
| Gross Profit Margin | 73.58% | 73.48% | 73.4% |
| Selling, General & Admin | |||
| YoY Change | |||
| % of Gross Profit | |||
| Research & Development | |||
| YoY Change | |||
| % of Gross Profit | |||
| Depreciation & Amortization | $293.0M | $262.0M | $261.0M |
| YoY Change | 11.83% | -22.71% | -16.08% |
| % of Gross Profit | 14.69% | 13.3% | 12.22% |
| Operating Expenses | $1.482B | $1.437B | $1.390B |
| YoY Change | 3.13% | -168.59% | -33.59% |
| Operating Profit | $512.0M | $505.0M | $733.0M |
| YoY Change | 1.39% | -105.66% | -14.87% |
| Interest Expense | -$240.0M | -$241.0M | $262.0M |
| YoY Change | -0.41% | 15.31% | -8.39% |
| % of Operating Profit | -46.88% | -47.72% | 35.74% |
| Other Income/Expense, Net | $41.00M | $9.000M | -$230.0M |
| YoY Change | 355.56% | -79.55% | 0.0% |
| Pretax Income | $169.0M | $171.0M | $503.0M |
| YoY Change | -1.17% | -101.86% | -20.29% |
| Income Tax | $35.00M | $1.232B | $202.0M |
| % Of Pretax Income | 20.71% | 720.47% | 40.16% |
| Net Earnings | $138.0M | -$2.499B | $396.0M |
| YoY Change | -105.52% | -56.88% | 4.21% |
| Net Earnings / Revenue | 5.09% | -93.21% | 13.61% |
| Basic Earnings Per Share | $0.25 | -$5.62 | $0.89 |
| Diluted Earnings Per Share | $0.25 | -$5.62 | $0.89 |
| COMMON SHARES | |||
| Basic Shares Outstanding | 444.0M shares | ||
| Diluted Shares Outstanding | 446.0M shares |
Balance Sheet
| Concept | 2018 Q4 | 2017 Q4 | 2017 Q3 |
|---|---|---|---|
| SHORT-TERM ASSETS | |||
| Cash & Short-Term Investments | $367.0M | $588.0M | $399.0M |
| YoY Change | -37.59% | 195.48% | -27.59% |
| Cash & Equivalents | $367.0M | $588.0M | $399.0M |
| Short-Term Investments | |||
| Other Short-Term Assets | $175.0M | $151.0M | $143.0M |
| YoY Change | 15.89% | -4.43% | -8.33% |
| Inventory | $252.0M | $236.0M | $543.0M |
| Prepaid Expenses | |||
| Receivables | $1.221B | $1.282B | $1.370B |
| Other Receivables | $270.0M | $170.0M | $172.0M |
| Total Short-Term Assets | $2.392B | $3.110B | $2.931B |
| YoY Change | -23.09% | 5.42% | -15.78% |
| LONG-TERM ASSETS | |||
| Property, Plant & Equipment | $29.91B | $28.10B | $29.50B |
| YoY Change | 6.44% | -4.38% | -22.03% |
| Goodwill | $5.618B | $5.618B | $5.618B |
| YoY Change | 0.0% | 0.0% | 0.0% |
| Intangibles | |||
| YoY Change | |||
| Long-Term Investments | $509.0M | $506.0M | $511.0M |
| YoY Change | 0.59% | -1.17% | -4.13% |
| Other Assets | $752.0M | $697.0M | $742.0M |
| YoY Change | 7.89% | -39.55% | -18.19% |
| Total Long-Term Assets | $6.461B | $6.711B | $7.289B |
| YoY Change | -3.73% | -13.8% | -4.26% |
| TOTAL ASSETS | |||
| Total Short-Term Assets | $2.392B | $3.110B | $2.931B |
| Total Long-Term Assets | $6.461B | $6.711B | $7.289B |
| Total Assets | $40.06B | $42.26B | $43.65B |
| YoY Change | -5.19% | -2.06% | -16.0% |
| SHORT-TERM LIABILITIES | |||
| YoY Change | |||
| Accounts Payable | $965.0M | $827.0M | $924.0M |
| YoY Change | 16.69% | -20.71% | -2.12% |
| Accrued Expenses | $318.0M | $257.0M | $337.0M |
| YoY Change | 23.74% | -29.2% | -7.67% |
| Deferred Revenue | |||
| YoY Change | |||
| Short-Term Debt | $1.250B | $300.0M | $500.0M |
| YoY Change | 316.67% | -88.79% | -83.19% |
| Long-Term Debt Due | $503.0M | $558.0M | $1.076B |
| YoY Change | -9.86% | -66.88% | -11.51% |
| Total Short-Term Liabilities | $4.634B | $4.113B | $4.255B |
| YoY Change | 12.67% | -42.28% | -39.59% |
| LONG-TERM LIABILITIES | |||
| Long-Term Debt | $17.75B | $18.69B | $21.09B |
| YoY Change | -5.01% | 2.72% | 13.8% |
| Other Long-Term Liabilities | $2.057B | $1.438B | $1.435B |
| YoY Change | 43.05% | -7.05% | 13.08% |
| Total Long-Term Liabilities | $10.86B | $15.53B | $11.90B |
| YoY Change | -30.05% | 34.02% | -20.05% |
| TOTAL LIABILITIES | |||
| Total Short-Term Liabilities | $4.634B | $4.113B | $4.255B |
| Total Long-Term Liabilities | $10.86B | $15.53B | $11.90B |
| Total Liabilities | $15.50B | $19.65B | $16.15B |
| YoY Change | -21.11% | 4.97% | -26.32% |
| SHAREHOLDERS EQUITY | |||
| Retained Earnings | -$4.879B | -$6.262B | -$3.763B |
| YoY Change | -22.09% | 38.17% | -397.71% |
| Common Stock | $11.53B | $10.00B | $9.974B |
| YoY Change | 15.29% | -5.25% | -0.38% |
| Preferred Stock | |||
| YoY Change | |||
| Treasury Stock (at cost) | |||
| YoY Change | |||
| Treasury Stock Shares | |||
| Shareholders Equity | $6.814B | $3.925B | $6.406B |
| YoY Change | |||
| Total Liabilities & Shareholders Equity | $40.06B | $42.26B | $43.65B |
| YoY Change | -5.19% | -2.06% | -16.0% |
Cashflow Statement
| Concept | 2018 Q4 | 2017 Q4 | 2017 Q3 |
|---|---|---|---|
| OPERATING ACTIVITIES | |||
| Net Income | $138.0M | -$2.499B | $396.0M |
| YoY Change | -105.52% | -56.88% | 4.21% |
| Depreciation, Depletion And Amortization | $293.0M | $262.0M | $261.0M |
| YoY Change | 11.83% | -22.71% | -16.08% |
| Cash From Operating Activities | $852.0M | $1.046B | $1.280B |
| YoY Change | -18.55% | 32.24% | 14.29% |
| INVESTING ACTIVITIES | |||
| Capital Expenditures | -$733.0M | -$838.0M | -$615.0M |
| YoY Change | -12.53% | 17.04% | -8.35% |
| Acquisitions | |||
| YoY Change | |||
| Other Investing Activities | -$48.00M | $321.0M | -$76.00M |
| YoY Change | -114.95% | -391.82% | 100.0% |
| Cash From Investing Activities | -$781.0M | -$517.0M | -$691.0M |
| YoY Change | 51.06% | -37.41% | -2.54% |
| FINANCING ACTIVITIES | |||
| Cash Dividend Paid | |||
| YoY Change | |||
| Common Stock Issuance & Retirement, Net | |||
| YoY Change | |||
| Debt Paid & Issued, Net | |||
| YoY Change | |||
| Cash From Financing Activities | -129.0M | -321.0M | -325.0M |
| YoY Change | -59.81% | -5.03% | 450.85% |
| NET CHANGE | |||
| Cash From Operating Activities | 852.0M | 1.046B | 1.280B |
| Cash From Investing Activities | -781.0M | -517.0M | -691.0M |
| Cash From Financing Activities | -129.0M | -321.0M | -325.0M |
| Net Change In Cash | -58.00M | 208.0M | 264.0M |
| YoY Change | -127.88% | -155.76% | -25.0% |
| FREE CASH FLOW | |||
| Cash From Operating Activities | $852.0M | $1.046B | $1.280B |
| Capital Expenditures | -$733.0M | -$838.0M | -$615.0M |
| Free Cash Flow | $1.585B | $1.884B | $1.895B |
| YoY Change | -15.87% | 25.02% | 5.81% |
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Noncash Transaction Deemed Dividend Preferred Stock
NoncashTransactionDeemedDividendPreferredStock
|
296000000 | USD |
| CY2017Q4 | fe |
Nuclear Fuel Disposal Trust
NuclearFuelDisposalTrust
|
251000000 | USD |
| CY2018Q4 | fe |
Nuclear Fuel Disposal Trust
NuclearFuelDisposalTrust
|
256000000 | USD |
| CY2018 | fe |
Number Of Subsidiaries That Issued Environmental Control Bonds
NumberOfSubsidiariesThatIssuedEnvironmentalControlBonds
|
2 | subsidiary |
| CY2018 | fe |
Number Of Variable Interest Contracts
NumberOfVariableInterestContracts
|
1 | entity |
| CY2018Q4 | fe |
Numberof Regional Transmission Centers
NumberofRegionalTransmissionCenters
|
2 | transmission_center |
| CY2016 | fe |
Paymentsof Debt Redemption Tender Premiums
PaymentsofDebtRedemptionTenderPremiums
|
0 | USD |
| CY2017 | fe |
Paymentsof Debt Redemption Tender Premiums
PaymentsofDebtRedemptionTenderPremiums
|
0 | USD |
| CY2018 | fe |
Paymentsof Debt Redemption Tender Premiums
PaymentsofDebtRedemptionTenderPremiums
|
89000000 | USD |
| CY2017Q4 | fe |
Preference Stock Shares Outstanding
PreferenceStockSharesOutstanding
|
0 | shares |
| CY2018Q4 | fe |
Preference Stock Shares Outstanding
PreferenceStockSharesOutstanding
|
0 | shares |
| CY2018Q1 | fe |
Preferred Stock Purchase Agreement Numberof Sharestobe Convertedin Next Two Years
PreferredStockPurchaseAgreementNumberofSharestobeConvertedinNextTwoYears
|
0 | shares |
| CY2018Q1 | fe |
Preferred Stock Purchase Agreement Shares Outstanding Conversion Threshold
PreferredStockPurchaseAgreementSharesOutstandingConversionThreshold
|
323200 | shares |
| CY2017Q4 | fe |
Prepaid Taxesand Other
PrepaidTaxesandOther
|
151000000 | USD |
| CY2018Q4 | fe |
Prepaid Taxesand Other
PrepaidTaxesandOther
|
175000000 | USD |
| CY2018 | fe |
Principal Default Amount Specified In Debt Covenants
PrincipalDefaultAmountSpecifiedInDebtCovenants
|
100000000 | USD |
| CY2017Q4 | fe |
Property Plant And Equipment Excluding Construction In Progress
PropertyPlantAndEquipmentExcludingConstructionInProgress
|
37113000000 | USD |
| CY2018Q4 | fe |
Property Plant And Equipment Excluding Construction In Progress
PropertyPlantAndEquipmentExcludingConstructionInProgress
|
39469000000 | USD |
| CY2018 | fe |
Proposed Action Reductionin Power Plants Carbon Pollution Percentage
ProposedActionReductioninPowerPlantsCarbonPollutionPercentage
|
0.9 | |
| CY2018 | fe |
Public Utilities Liability Assessedwith Respectto Single Nuclear Incident Based On Act
PublicUtilitiesLiabilityAssessedwithRespecttoSingleNuclearIncidentBasedOnAct
|
560000000 | USD |
| CY2018 | fe |
Regional Enforcement Entities
RegionalEnforcementEntities
|
8 | entity |
| CY2018Q4 | fe |
Remaining Amountsof Regulatory Assetsforwhich Recoveryis Basedon Prior Precedentor Rate Makingwithouta Specific Order
RemainingAmountsofRegulatoryAssetsforwhichRecoveryisBasedonPriorPrecedentorRateMakingwithoutaSpecificOrder
|
141000000 | USD |
| CY2016 | fe |
Removal Costs
RemovalCosts
|
54000000 | USD |
| CY2017 | fe |
Removal Costs
RemovalCosts
|
22000000 | USD |
| CY2018 | fe |
Removal Costs
RemovalCosts
|
42000000 | USD |
| CY2018Q1 | fe |
Restructuring Working Group Numberof Employees
RestructuringWorkingGroupNumberofEmployees
|
2 | employee |
| CY2018 | fe |
Revenue Otherthan Customer Revenue
RevenueOtherthanCustomerRevenue
|
63000000 | USD |
| CY2018 | fe |
Revenuefrom Alternative Revenue Program Excluding Assessed Tax
RevenuefromAlternativeRevenueProgramExcludingAssessedTax
|
254000000 | USD |
| CY2018 | fe |
Revenuefrom Contractwith Customer Utility Customer Payment Period
RevenuefromContractwithCustomerUtilityCustomerPaymentPeriod
|
P30D | |
| CY2016 | fe |
Taxes Gross Receipts Stateand Local
TaxesGrossReceiptsStateandLocal
|
184000000 | USD |
| CY2017 | fe |
Taxes Gross Receipts Stateand Local
TaxesGrossReceiptsStateandLocal
|
184000000 | USD |
| CY2018 | fe |
Taxes Gross Receipts Stateand Local
TaxesGrossReceiptsStateandLocal
|
192000000 | USD |
| CY2016 | fe |
Taxes Social Securityand Unemployment
TaxesSocialSecurityandUnemployment
|
91000000 | USD |
| CY2017 | fe |
Taxes Social Securityand Unemployment
TaxesSocialSecurityandUnemployment
|
96000000 | USD |
| CY2018 | fe |
Taxes Social Securityand Unemployment
TaxesSocialSecurityandUnemployment
|
103000000 | USD |
| CY2017Q4 | fe |
Unamortized Gains Included In Long Term Debt Associated With Prior Fixed For Floating Interest Rate Swap Agreements
UnamortizedGainsIncludedInLongTermDebtAssociatedWithPriorFixedForFloatingInterestRateSwapAgreements
|
3000000 | USD |
| CY2018Q4 | fe |
Unamortized Gains Included In Long Term Debt Associated With Prior Fixed For Floating Interest Rate Swap Agreements
UnamortizedGainsIncludedInLongTermDebtAssociatedWithPriorFixedForFloatingInterestRateSwapAgreements
|
2000000 | USD |
| CY2018 | fe |
Unrecognized Tax Benefits Increase Resultingfrom Changein Worthless Stock Deduction Reserve
UnrecognizedTaxBenefitsIncreaseResultingfromChangeinWorthlessStockDeductionReserve
|
88000000 | USD |
| CY2018 | fe |
Unrecognized Tax Benefits Increase Resultingfrom Nondeductible Interest
UnrecognizedTaxBenefitsIncreaseResultingfromNondeductibleInterest
|
27000000 | USD |
| CY2018Q4 | fe |
Unrecognized Tax Benefits Portion Expected To Be Resolved In Next Fiscal Year
UnrecognizedTaxBenefitsPortionExpectedToBeResolvedInNextFiscalYear
|
6000000 | USD |
| CY2018Q4 | fe |
Unrecognized Tax Benefitsthat Would Impact Effective Tax Rate Future Years
UnrecognizedTaxBenefitsthatWouldImpactEffectiveTaxRateFutureYears
|
142000000 | USD |
| CY2017Q4 | us-gaap |
Accounts Payable Current
AccountsPayableCurrent
|
827000000 | USD |
| CY2018Q4 | us-gaap |
Accounts Payable Current
AccountsPayableCurrent
|
965000000 | USD |
| CY2017Q4 | us-gaap |
Accounts Receivable Net Current
AccountsReceivableNetCurrent
|
1282000000 | USD |
| CY2018Q4 | us-gaap |
Accounts Receivable Net Current
AccountsReceivableNetCurrent
|
1221000000 | USD |
| CY2017Q4 | us-gaap |
Accrued Employee Benefits Current
AccruedEmployeeBenefitsCurrent
|
257000000 | USD |
| CY2018Q4 | us-gaap |
Accrued Employee Benefits Current
AccruedEmployeeBenefitsCurrent
|
318000000 | USD |
| CY2017Q4 | us-gaap |
Accrued Income Taxes Current
AccruedIncomeTaxesCurrent
|
533000000 | USD |
| CY2018Q4 | us-gaap |
Accrued Income Taxes Current
AccruedIncomeTaxesCurrent
|
533000000 | USD |
| CY2017Q4 | us-gaap |
Accumulated Depreciation Depletion And Amortization Property Plant And Equipment
AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment
|
10011000000 | USD |
| CY2018Q4 | us-gaap |
Accumulated Depreciation Depletion And Amortization Property Plant And Equipment
AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment
|
10793000000 | USD |
| CY2017Q4 | us-gaap |
Accumulated Other Comprehensive Income Loss Net Of Tax
AccumulatedOtherComprehensiveIncomeLossNetOfTax
|
142000000 | USD |
| CY2018Q4 | us-gaap |
Accumulated Other Comprehensive Income Loss Net Of Tax
AccumulatedOtherComprehensiveIncomeLossNetOfTax
|
41000000 | USD |
| CY2017Q4 | us-gaap |
Additional Paid In Capital Common Stock
AdditionalPaidInCapitalCommonStock
|
10001000000 | USD |
| CY2018Q4 | us-gaap |
Additional Paid In Capital Common Stock
AdditionalPaidInCapitalCommonStock
|
11530000000 | USD |
| CY2018 | us-gaap |
Amortization Of Intangible Assets
AmortizationOfIntangibleAssets
|
8000000 | USD |
| CY2016 | us-gaap |
Asset Impairment Charges
AssetImpairmentCharges
|
10665000000 | USD |
| CY2017 | us-gaap |
Asset Impairment Charges
AssetImpairmentCharges
|
2399000000 | USD |
| CY2018 | us-gaap |
Asset Impairment Charges
AssetImpairmentCharges
|
0 | USD |
| CY2016Q4 | us-gaap |
Asset Retirement Obligation
AssetRetirementObligation
|
581000000 | USD |
| CY2017Q4 | us-gaap |
Asset Retirement Obligation
AssetRetirementObligation
|
570000000 | USD |
| CY2018Q4 | us-gaap |
Asset Retirement Obligation
AssetRetirementObligation
|
812000000 | USD |
| CY2017 | us-gaap |
Asset Retirement Obligation Accretion Expense
AssetRetirementObligationAccretionExpense
|
39000000 | USD |
| CY2018 | us-gaap |
Asset Retirement Obligation Accretion Expense
AssetRetirementObligationAccretionExpense
|
40000000 | USD |
| CY2017 | us-gaap |
Asset Retirement Obligation Liabilities Settled
AssetRetirementObligationLiabilitiesSettled
|
1000000 | USD |
| CY2018 | us-gaap |
Asset Retirement Obligation Liabilities Settled
AssetRetirementObligationLiabilitiesSettled
|
1000000 | USD |
| CY2018 | us-gaap |
Asset Retirement Obligation Revision Of Estimate
AssetRetirementObligationRevisionOfEstimate
|
203000000 | USD |
| CY2017Q4 | us-gaap |
Asset Retirement Obligations Noncurrent
AssetRetirementObligationsNoncurrent
|
570000000 | USD |
| CY2018Q4 | us-gaap |
Asset Retirement Obligations Noncurrent
AssetRetirementObligationsNoncurrent
|
812000000 | USD |
| CY2016Q4 | us-gaap |
Assets
Assets
|
43148000000 | USD |
| CY2017Q4 | us-gaap |
Assets
Assets
|
42257000000 | USD |
| CY2018Q4 | us-gaap |
Assets
Assets
|
40063000000 | USD |
| CY2018Q4 | us-gaap |
Capital Lease Obligations Current
CapitalLeaseObligationsCurrent
|
18000000 | USD |
| CY2018Q4 | us-gaap |
Capital Lease Obligations Noncurrent
CapitalLeaseObligationsNoncurrent
|
55000000 | USD |
| CY2017Q4 | us-gaap |
Capital Leased Assets Gross
CapitalLeasedAssetsGross
|
190000000 | USD |
| CY2018Q4 | us-gaap |
Capital Leased Assets Gross
CapitalLeasedAssetsGross
|
173000000 | USD |
| CY2017Q4 | us-gaap |
Assets Current
AssetsCurrent
|
3110000000 | USD |
| CY2018Q4 | us-gaap |
Assets Current
AssetsCurrent
|
2392000000 | USD |
| CY2017Q4 | us-gaap |
Assets Noncurrent
AssetsNoncurrent
|
6711000000 | USD |
| CY2018Q4 | us-gaap |
Assets Noncurrent
AssetsNoncurrent
|
6461000000 | USD |
| CY2017Q4 | us-gaap |
Assets Of Disposal Group Including Discontinued Operation Current
AssetsOfDisposalGroupIncludingDiscontinuedOperationCurrent
|
632000000 | USD |
| CY2018Q4 | us-gaap |
Assets Of Disposal Group Including Discontinued Operation Current
AssetsOfDisposalGroupIncludingDiscontinuedOperationCurrent
|
25000000 | USD |
| CY2018Q3 | us-gaap |
Bankruptcy Claims Amount Paid To Settle Claims
BankruptcyClaimsAmountPaidToSettleClaims
|
225000000 | USD |
| CY2017Q4 | us-gaap |
Capital Lease Obligations
CapitalLeaseObligations
|
89000000 | USD |
| CY2018Q4 | us-gaap |
Capital Lease Obligations
CapitalLeaseObligations
|
73000000 | USD |
| CY2018Q4 | us-gaap |
Capital Leases Future Minimum Payments Due
CapitalLeasesFutureMinimumPaymentsDue
|
96000000 | USD |
| CY2018Q4 | us-gaap |
Capital Leases Future Minimum Payments Due Current
CapitalLeasesFutureMinimumPaymentsDueCurrent
|
24000000 | USD |
| CY2018Q4 | us-gaap |
Capital Leases Future Minimum Payments Due In Five Years
CapitalLeasesFutureMinimumPaymentsDueInFiveYears
|
8000000 | USD |
| CY2018Q4 | us-gaap |
Capital Leases Future Minimum Payments Due In Four Years
CapitalLeasesFutureMinimumPaymentsDueInFourYears
|
13000000 | USD |
| CY2018Q4 | us-gaap |
Capital Leases Future Minimum Payments Due In Three Years
CapitalLeasesFutureMinimumPaymentsDueInThreeYears
|
16000000 | USD |
| CY2018Q4 | us-gaap |
Capital Leases Future Minimum Payments Due In Two Years
CapitalLeasesFutureMinimumPaymentsDueInTwoYears
|
19000000 | USD |
| CY2018Q4 | us-gaap |
Capital Leases Future Minimum Payments Due Thereafter
CapitalLeasesFutureMinimumPaymentsDueThereafter
|
16000000 | USD |
| CY2018Q4 | us-gaap |
Capital Leases Future Minimum Payments Interest Included In Payments
CapitalLeasesFutureMinimumPaymentsInterestIncludedInPayments
|
23000000 | USD |
| CY2018Q4 | us-gaap |
Capital Leases Future Minimum Payments Present Value Of Net Minimum Payments
CapitalLeasesFutureMinimumPaymentsPresentValueOfNetMinimumPayments
|
73000000 | USD |
| CY2017Q4 | us-gaap |
Capitalization Longterm Debt And Equity
CapitalizationLongtermDebtAndEquity
|
22612000000 | USD |
| CY2018Q4 | us-gaap |
Capitalization Longterm Debt And Equity
CapitalizationLongtermDebtAndEquity
|
24565000000 | USD |
| CY2017Q4 | us-gaap |
Cash And Cash Equivalents At Carrying Value
CashAndCashEquivalentsAtCarryingValue
|
588000000 | USD |
| CY2018Q4 | us-gaap |
Cash And Cash Equivalents At Carrying Value
CashAndCashEquivalentsAtCarryingValue
|
367000000 | USD |
| CY2015Q4 | us-gaap |
Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents
CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents
|
213000000 | USD |
| CY2016Q4 | us-gaap |
Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents
CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents
|
260000000 | USD |
| CY2017Q4 | us-gaap |
Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents
CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents
|
643000000 | USD |
| CY2018Q4 | us-gaap |
Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents
CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents
|
429000000 | USD |
| CY2016 | us-gaap |
Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Including Exchange Rate Effect
CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect
|
47000000 | USD |
| CY2017 | us-gaap |
Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Including Exchange Rate Effect
CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect
|
383000000 | USD |
| CY2018 | us-gaap |
Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Including Exchange Rate Effect
CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect
|
-214000000 | USD |
| CY2017Q4 | us-gaap |
Commitments And Contingencies
CommitmentsAndContingencies
|
USD | |
| CY2018Q4 | us-gaap |
Commitments And Contingencies
CommitmentsAndContingencies
|
USD | |
| CY2016Q1 | us-gaap |
Common Stock Dividends Per Share Cash Paid
CommonStockDividendsPerShareCashPaid
|
0.36 | |
| CY2016Q2 | us-gaap |
Common Stock Dividends Per Share Cash Paid
CommonStockDividendsPerShareCashPaid
|
0.36 | |
| CY2016Q3 | us-gaap |
Common Stock Dividends Per Share Cash Paid
CommonStockDividendsPerShareCashPaid
|
0.36 | |
| CY2016Q4 | us-gaap |
Common Stock Dividends Per Share Cash Paid
CommonStockDividendsPerShareCashPaid
|
0.36 | |
| CY2017Q1 | us-gaap |
Common Stock Dividends Per Share Cash Paid
CommonStockDividendsPerShareCashPaid
|
0.36 | |
| CY2017Q2 | us-gaap |
Common Stock Dividends Per Share Cash Paid
CommonStockDividendsPerShareCashPaid
|
0.36 | |
| CY2017Q3 | us-gaap |
Common Stock Dividends Per Share Cash Paid
CommonStockDividendsPerShareCashPaid
|
0.36 | |
| CY2017Q4 | us-gaap |
Common Stock Dividends Per Share Cash Paid
CommonStockDividendsPerShareCashPaid
|
0.36 | |
| CY2018Q4 | us-gaap |
Common Stock Dividends Per Share Declared
CommonStockDividendsPerShareDeclared
|
0.38 | |
| CY2016 | us-gaap |
Common Stock Dividends Per Share Declared
CommonStockDividendsPerShareDeclared
|
1.44 | |
| CY2017 | us-gaap |
Common Stock Dividends Per Share Declared
CommonStockDividendsPerShareDeclared
|
1.44 | |
| CY2018 | us-gaap |
Common Stock Dividends Per Share Declared
CommonStockDividendsPerShareDeclared
|
1.82 | |
| CY2017Q4 | us-gaap |
Common Stock Par Or Stated Value Per Share
CommonStockParOrStatedValuePerShare
|
0.1 | |
| CY2018Q4 | us-gaap |
Common Stock Par Or Stated Value Per Share
CommonStockParOrStatedValuePerShare
|
0.1 | |
| CY2018Q1 | us-gaap |
Common Stock Par Or Stated Value Per Share
CommonStockParOrStatedValuePerShare
|
0.10 | |
| CY2017Q4 | us-gaap |
Common Stock Shares Authorized
CommonStockSharesAuthorized
|
700000000 | shares |
| CY2018Q4 | us-gaap |
Common Stock Shares Authorized
CommonStockSharesAuthorized
|
700000000 | shares |
| CY2018Q1 | us-gaap |
Common Stock Shares Issued
CommonStockSharesIssued
|
30120482 | shares |
| CY2017Q4 | us-gaap |
Common Stock Shares Outstanding
CommonStockSharesOutstanding
|
445334111 | shares |
| CY2018Q4 | us-gaap |
Common Stock Shares Outstanding
CommonStockSharesOutstanding
|
511915450 | shares |
| CY2018Q1 | us-gaap |
Common Stock Value
CommonStockValue
|
850000000 | USD |
| CY2017Q4 | us-gaap |
Common Stock Value Outstanding
CommonStockValueOutstanding
|
44000000 | USD |
| CY2018Q4 | us-gaap |
Common Stock Value Outstanding
CommonStockValueOutstanding
|
51000000 | USD |
| CY2016 | us-gaap |
Comprehensive Income Net Of Tax
ComprehensiveIncomeNetOfTax
|
-6174000000 | USD |
| CY2017 | us-gaap |
Comprehensive Income Net Of Tax
ComprehensiveIncomeNetOfTax
|
-1756000000 | USD |
| CY2018 | us-gaap |
Comprehensive Income Net Of Tax
ComprehensiveIncomeNetOfTax
|
1247000000 | USD |
| CY2017Q4 | us-gaap |
Construction In Progress Gross
ConstructionInProgressGross
|
999000000 | USD |
| CY2018Q4 | us-gaap |
Construction In Progress Gross
ConstructionInProgressGross
|
1235000000 | USD |
| CY2016 | us-gaap |
Costs And Expenses
CostsAndExpenses
|
8646000000 | USD |
| CY2017 | us-gaap |
Costs And Expenses
CostsAndExpenses
|
8500000000 | USD |
| CY2018 | us-gaap |
Costs And Expenses
CostsAndExpenses
|
8759000000 | USD |
| CY2017Q4 | us-gaap |
Cumulative Effect Of New Accounting Principle In Period Of Adoption
CumulativeEffectOfNewAccountingPrincipleInPeriodOfAdoption
|
-6000000 | USD |
| CY2016 | us-gaap |
Current Federal Tax Expense Benefit
CurrentFederalTaxExpenseBenefit
|
-1000000 | USD |
| CY2017 | us-gaap |
Current Federal Tax Expense Benefit
CurrentFederalTaxExpenseBenefit
|
14000000 | USD |
| CY2018 | us-gaap |
Current Federal Tax Expense Benefit
CurrentFederalTaxExpenseBenefit
|
-16000000 | USD |
| CY2016 | us-gaap |
Current Income Tax Expense Benefit
CurrentIncomeTaxExpenseBenefit
|
8000000 | USD |
| CY2017 | us-gaap |
Current Income Tax Expense Benefit
CurrentIncomeTaxExpenseBenefit
|
34000000 | USD |
| CY2018 | us-gaap |
Current Income Tax Expense Benefit
CurrentIncomeTaxExpenseBenefit
|
1000000 | USD |
| CY2016 | us-gaap |
Current State And Local Tax Expense Benefit
CurrentStateAndLocalTaxExpenseBenefit
|
9000000 | USD |
| CY2017 | us-gaap |
Current State And Local Tax Expense Benefit
CurrentStateAndLocalTaxExpenseBenefit
|
20000000 | USD |
| CY2018 | us-gaap |
Current State And Local Tax Expense Benefit
CurrentStateAndLocalTaxExpenseBenefit
|
17000000 | USD |
| CY2017Q4 | us-gaap |
Debt Instrument Unamortized Discount Premium Net
DebtInstrumentUnamortizedDiscountPremiumNet
|
41000000 | USD |
| CY2018Q4 | us-gaap |
Debt Instrument Unamortized Discount Premium Net
DebtInstrumentUnamortizedDiscountPremiumNet
|
39000000 | USD |
| CY2017Q4 | us-gaap |
Decommissioning Fund Investments
DecommissioningFundInvestments
|
822000000 | USD |
| CY2018Q4 | us-gaap |
Decommissioning Fund Investments
DecommissioningFundInvestments
|
790000000 | USD |
| CY2016 | us-gaap |
Deferred Federal Income Tax Expense Benefit
DeferredFederalIncomeTaxExpenseBenefit
|
317000000 | USD |
| CY2017 | us-gaap |
Deferred Federal Income Tax Expense Benefit
DeferredFederalIncomeTaxExpenseBenefit
|
1647000000 | USD |
| CY2018 | us-gaap |
Deferred Federal Income Tax Expense Benefit
DeferredFederalIncomeTaxExpenseBenefit
|
252000000 | USD |
| CY2017Q4 | us-gaap |
Deferred Finance Costs Gross
DeferredFinanceCostsGross
|
99000000 | USD |
| CY2018Q4 | us-gaap |
Deferred Finance Costs Gross
DeferredFinanceCostsGross
|
95000000 | USD |
| CY2016 | us-gaap |
Deferred Income Tax Expense Benefit
DeferredIncomeTaxExpenseBenefit
|
525000000 | USD |
| CY2017 | us-gaap |
Deferred Income Tax Expense Benefit
DeferredIncomeTaxExpenseBenefit
|
1687000000 | USD |
| CY2018 | us-gaap |
Deferred Income Tax Expense Benefit
DeferredIncomeTaxExpenseBenefit
|
495000000 | USD |
| CY2016 | us-gaap |
Deferred Income Taxes And Tax Credits
DeferredIncomeTaxesAndTaxCredits
|
-3063000000 | USD |
| CY2017 | us-gaap |
Deferred Income Taxes And Tax Credits
DeferredIncomeTaxesAndTaxCredits
|
839000000 | USD |
| CY2018 | us-gaap |
Deferred Income Taxes And Tax Credits
DeferredIncomeTaxesAndTaxCredits
|
485000000 | USD |
| CY2016 | us-gaap |
Deferred State And Local Income Tax Expense Benefit
DeferredStateAndLocalIncomeTaxExpenseBenefit
|
208000000 | USD |
| CY2017 | us-gaap |
Deferred State And Local Income Tax Expense Benefit
DeferredStateAndLocalIncomeTaxExpenseBenefit
|
40000000 | USD |
| CY2018 | us-gaap |
Deferred State And Local Income Tax Expense Benefit
DeferredStateAndLocalIncomeTaxExpenseBenefit
|
243000000 | USD |
| CY2017Q4 | us-gaap |
Deferred Tax Assets Tax Deferred Expense Compensation And Benefits Employee Compensation
DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsEmployeeCompensation
|
149000000 | USD |
| CY2018Q4 | us-gaap |
Deferred Tax Assets Tax Deferred Expense Compensation And Benefits Employee Compensation
DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsEmployeeCompensation
|
170000000 | USD |
| CY2017Q4 | us-gaap |
Deferred Tax Liabilities
DeferredTaxLiabilities
|
3171000000 | USD |
| CY2018Q4 | us-gaap |
Deferred Tax Liabilities
DeferredTaxLiabilities
|
2502000000 | USD |
| CY2017Q4 | us-gaap |
Deferred Tax Liabilities Noncurrent
DeferredTaxLiabilitiesNoncurrent
|
3171000000 | USD |
| CY2018Q4 | us-gaap |
Deferred Tax Liabilities Noncurrent
DeferredTaxLiabilitiesNoncurrent
|
2502000000 | USD |
| CY2016 | us-gaap |
Defined Benefit Plan Fair Value Of Plan Assets Period Increase Decrease
DefinedBenefitPlanFairValueOfPlanAssetsPeriodIncreaseDecrease
|
-102000000 | USD |
| CY2017Q1 | us-gaap |
Defined Benefit Plan Fair Value Of Plan Assets Period Increase Decrease
DefinedBenefitPlanFairValueOfPlanAssetsPeriodIncreaseDecrease
|
0 | USD |
| CY2017Q2 | us-gaap |
Defined Benefit Plan Fair Value Of Plan Assets Period Increase Decrease
DefinedBenefitPlanFairValueOfPlanAssetsPeriodIncreaseDecrease
|
0 | USD |
| CY2017Q3 | us-gaap |
Defined Benefit Plan Fair Value Of Plan Assets Period Increase Decrease
DefinedBenefitPlanFairValueOfPlanAssetsPeriodIncreaseDecrease
|
0 | USD |
| CY2017Q4 | us-gaap |
Defined Benefit Plan Fair Value Of Plan Assets Period Increase Decrease
DefinedBenefitPlanFairValueOfPlanAssetsPeriodIncreaseDecrease
|
-102000000 | USD |
| CY2017 | us-gaap |
Defined Benefit Plan Fair Value Of Plan Assets Period Increase Decrease
DefinedBenefitPlanFairValueOfPlanAssetsPeriodIncreaseDecrease
|
-102000000 | USD |
| CY2018Q1 | us-gaap |
Defined Benefit Plan Fair Value Of Plan Assets Period Increase Decrease
DefinedBenefitPlanFairValueOfPlanAssetsPeriodIncreaseDecrease
|
0 | USD |
| CY2018Q2 | us-gaap |
Defined Benefit Plan Fair Value Of Plan Assets Period Increase Decrease
DefinedBenefitPlanFairValueOfPlanAssetsPeriodIncreaseDecrease
|
0 | USD |
| CY2018Q3 | us-gaap |
Defined Benefit Plan Fair Value Of Plan Assets Period Increase Decrease
DefinedBenefitPlanFairValueOfPlanAssetsPeriodIncreaseDecrease
|
0 | USD |
| CY2018Q4 | us-gaap |
Defined Benefit Plan Fair Value Of Plan Assets Period Increase Decrease
DefinedBenefitPlanFairValueOfPlanAssetsPeriodIncreaseDecrease
|
-144000000 | USD |
| CY2018 | us-gaap |
Defined Benefit Plan Fair Value Of Plan Assets Period Increase Decrease
DefinedBenefitPlanFairValueOfPlanAssetsPeriodIncreaseDecrease
|
-144000000 | USD |
| CY2018Q4 | us-gaap |
Defined Benefit Plan Plan Assets Target Allocation Percentage
DefinedBenefitPlanPlanAssetsTargetAllocationPercentage
|
1 | |
| CY2016 | us-gaap |
Depreciation
Depreciation
|
933000000 | USD |
| CY2017Q1 | us-gaap |
Depreciation
Depreciation
|
250000000 | USD |
| CY2017Q2 | us-gaap |
Depreciation
Depreciation
|
254000000 | USD |
| CY2017Q3 | us-gaap |
Depreciation
Depreciation
|
261000000 | USD |
| CY2017Q4 | us-gaap |
Depreciation
Depreciation
|
262000000 | USD |
| CY2017 | us-gaap |
Depreciation
Depreciation
|
1027000000 | USD |
| CY2018Q1 | us-gaap |
Depreciation
Depreciation
|
277000000 | USD |
| CY2018Q2 | us-gaap |
Depreciation
Depreciation
|
283000000 | USD |
| CY2018Q3 | us-gaap |
Depreciation
Depreciation
|
283000000 | USD |
| CY2018Q4 | us-gaap |
Depreciation
Depreciation
|
293000000 | USD |
| CY2018 | us-gaap |
Depreciation
Depreciation
|
1136000000 | USD |
| CY2016 | us-gaap |
Depreciation Depletion And Amortization
DepreciationDepletionAndAmortization
|
1974000000 | USD |
| CY2017 | us-gaap |
Depreciation Depletion And Amortization
DepreciationDepletionAndAmortization
|
1700000000 | USD |
| CY2018 | us-gaap |
Depreciation Depletion And Amortization
DepreciationDepletionAndAmortization
|
1384000000 | USD |
| CY2016 | us-gaap |
Discontinued Operation Tax Effect Of Discontinued Operation
DiscontinuedOperationTaxEffectOfDiscontinuedOperation
|
3582000000 | USD |
| CY2017 | us-gaap |
Discontinued Operation Tax Effect Of Discontinued Operation
DiscontinuedOperationTaxEffectOfDiscontinuedOperation
|
820000000 | USD |
| CY2018 | us-gaap |
Discontinued Operation Tax Effect Of Discontinued Operation
DiscontinuedOperationTaxEffectOfDiscontinuedOperation
|
1251000000 | USD |
| CY2017Q4 | us-gaap |
Disposal Group Including Discontinued Operation Property Plant And Equipment Noncurrent
DisposalGroupIncludingDiscontinuedOperationPropertyPlantAndEquipmentNoncurrent
|
1132000000 | USD |
| CY2018Q4 | us-gaap |
Disposal Group Including Discontinued Operation Property Plant And Equipment Noncurrent
DisposalGroupIncludingDiscontinuedOperationPropertyPlantAndEquipmentNoncurrent
|
0 | USD |
| CY2016 | us-gaap |
Disposal Group Not Discontinued Operation Gain Loss On Disposal
DisposalGroupNotDiscontinuedOperationGainLossOnDisposal
|
0 | USD |
| CY2017 | us-gaap |
Disposal Group Not Discontinued Operation Gain Loss On Disposal
DisposalGroupNotDiscontinuedOperationGainLossOnDisposal
|
0 | USD |
| CY2018 | us-gaap |
Disposal Group Not Discontinued Operation Gain Loss On Disposal
DisposalGroupNotDiscontinuedOperationGainLossOnDisposal
|
435000000 | USD |
| CY2016 | us-gaap |
Dividends Common Stock Cash
DividendsCommonStockCash
|
611000000 | USD |
| CY2017 | us-gaap |
Dividends Common Stock Cash
DividendsCommonStockCash
|
639000000 | USD |
| CY2018 | us-gaap |
Dividends Common Stock Cash
DividendsCommonStockCash
|
906000000 | USD |
| CY2016 | us-gaap |
Dividends Preferred Stock
DividendsPreferredStock
|
0 | USD |
| CY2017 | us-gaap |
Dividends Preferred Stock
DividendsPreferredStock
|
0 | USD |
| CY2018 | us-gaap |
Dividends Preferred Stock
DividendsPreferredStock
|
71000000 | USD |
| CY2018 | us-gaap |
Dividends Preferred Stock Cash
DividendsPreferredStockCash
|
71000000 | USD |
| CY2016 | us-gaap |
Earnings Per Share Basic
EarningsPerShareBasic
|
-14.49 | |
| CY2017Q1 | us-gaap |
Earnings Per Share Basic
EarningsPerShareBasic
|
0.46 | |
| CY2017Q2 | us-gaap |
Earnings Per Share Basic
EarningsPerShareBasic
|
0.39 | |
| CY2017Q3 | us-gaap |
Earnings Per Share Basic
EarningsPerShareBasic
|
0.89 | |
| CY2017Q4 | us-gaap |
Earnings Per Share Basic
EarningsPerShareBasic
|
-5.62 | |
| CY2017 | us-gaap |
Earnings Per Share Basic
EarningsPerShareBasic
|
-3.88 | |
| CY2018Q1 | us-gaap |
Earnings Per Share Basic
EarningsPerShareBasic
|
2.55 | |
| CY2018Q2 | us-gaap |
Earnings Per Share Basic
EarningsPerShareBasic
|
0.28 | |
| CY2018Q3 | us-gaap |
Earnings Per Share Basic
EarningsPerShareBasic
|
-1.02 | |
| CY2018Q4 | us-gaap |
Earnings Per Share Basic
EarningsPerShareBasic
|
0.25 | |
| CY2018 | us-gaap |
Earnings Per Share Basic
EarningsPerShareBasic
|
1.99 | |
| CY2016 | us-gaap |
Earnings Per Share Diluted
EarningsPerShareDiluted
|
-14.49 | |
| CY2017Q1 | us-gaap |
Earnings Per Share Diluted
EarningsPerShareDiluted
|
0.46 | |
| CY2017Q2 | us-gaap |
Earnings Per Share Diluted
EarningsPerShareDiluted
|
0.39 | |
| CY2017Q3 | us-gaap |
Earnings Per Share Diluted
EarningsPerShareDiluted
|
0.89 | |
| CY2017Q4 | us-gaap |
Earnings Per Share Diluted
EarningsPerShareDiluted
|
-5.62 | |
| CY2017 | us-gaap |
Earnings Per Share Diluted
EarningsPerShareDiluted
|
-3.88 | |
| CY2018Q1 | us-gaap |
Earnings Per Share Diluted
EarningsPerShareDiluted
|
2.54 | |
| CY2018Q2 | us-gaap |
Earnings Per Share Diluted
EarningsPerShareDiluted
|
0.28 | |
| CY2018Q3 | us-gaap |
Earnings Per Share Diluted
EarningsPerShareDiluted
|
-1.02 | |
| CY2018Q4 | us-gaap |
Earnings Per Share Diluted
EarningsPerShareDiluted
|
0.25 | |
| CY2018 | us-gaap |
Earnings Per Share Diluted
EarningsPerShareDiluted
|
1.99 | |
| CY2016 | us-gaap |
Effective Income Tax Rate Continuing Operations
EffectiveIncomeTaxRateContinuingOperations
|
0.490 | |
| CY2017 | us-gaap |
Effective Income Tax Rate Continuing Operations
EffectiveIncomeTaxRateContinuingOperations
|
1.203 | |
| CY2018 | us-gaap |
Effective Income Tax Rate Continuing Operations
EffectiveIncomeTaxRateContinuingOperations
|
0.324 | |
| CY2016 | us-gaap |
Employee Service Share Based Compensation Allocation Of Recognized Period Costs Capitalized Amount
EmployeeServiceShareBasedCompensationAllocationOfRecognizedPeriodCostsCapitalizedAmount
|
37000000 | USD |
| CY2017 | us-gaap |
Employee Service Share Based Compensation Allocation Of Recognized Period Costs Capitalized Amount
EmployeeServiceShareBasedCompensationAllocationOfRecognizedPeriodCostsCapitalizedAmount
|
37000000 | USD |
| CY2018 | us-gaap |
Employee Service Share Based Compensation Allocation Of Recognized Period Costs Capitalized Amount
EmployeeServiceShareBasedCompensationAllocationOfRecognizedPeriodCostsCapitalizedAmount
|
60000000 | USD |
| CY2016 | us-gaap |
Employee Service Share Based Compensation Tax Benefit From Compensation Expense
EmployeeServiceShareBasedCompensationTaxBenefitFromCompensationExpense
|
14000000 | USD |
| CY2017 | us-gaap |
Employee Service Share Based Compensation Tax Benefit From Compensation Expense
EmployeeServiceShareBasedCompensationTaxBenefitFromCompensationExpense
|
10000000 | USD |
| CY2018 | us-gaap |
Employee Service Share Based Compensation Tax Benefit From Compensation Expense
EmployeeServiceShareBasedCompensationTaxBenefitFromCompensationExpense
|
18000000 | USD |
| CY2016 | us-gaap |
Employee Service Share Based Compensation Tax Benefit From Exercise Of Stock Options
EmployeeServiceShareBasedCompensationTaxBenefitFromExerciseOfStockOptions
|
13000000 | USD |
| CY2017 | us-gaap |
Employee Service Share Based Compensation Tax Benefit From Exercise Of Stock Options
EmployeeServiceShareBasedCompensationTaxBenefitFromExerciseOfStockOptions
|
15000000 | USD |
| CY2018 | us-gaap |
Employee Service Share Based Compensation Tax Benefit From Exercise Of Stock Options
EmployeeServiceShareBasedCompensationTaxBenefitFromExerciseOfStockOptions
|
15000000 | USD |
| CY2016 | us-gaap |
Excise Taxes Collected
ExciseTaxesCollected
|
378000000 | USD |
| CY2017 | us-gaap |
Excise Taxes Collected
ExciseTaxesCollected
|
370000000 | USD |
| CY2018 | us-gaap |
Excise Taxes Collected
ExciseTaxesCollected
|
386000000 | USD |
| CY2018Q4 | us-gaap |
Finite Lived Intangible Assets Accumulated Amortization
FiniteLivedIntangibleAssetsAccumulatedAmortization
|
141000000 | USD |
| CY2018Q4 | us-gaap |
Finite Lived Intangible Assets Amortization Expense After Year Five
FiniteLivedIntangibleAssetsAmortizationExpenseAfterYearFive
|
61000000 | USD |
| CY2018Q4 | us-gaap |
Finite Lived Intangible Assets Amortization Expense Next Twelve Months
FiniteLivedIntangibleAssetsAmortizationExpenseNextTwelveMonths
|
9000000 | USD |
| CY2018Q4 | us-gaap |
Finite Lived Intangible Assets Amortization Expense Year Five
FiniteLivedIntangibleAssetsAmortizationExpenseYearFive
|
6000000 | USD |
| CY2018Q4 | us-gaap |
Finite Lived Intangible Assets Amortization Expense Year Four
FiniteLivedIntangibleAssetsAmortizationExpenseYearFour
|
5000000 | USD |
| CY2018Q4 | us-gaap |
Finite Lived Intangible Assets Amortization Expense Year Three
FiniteLivedIntangibleAssetsAmortizationExpenseYearThree
|
5000000 | USD |
| CY2018Q4 | us-gaap |
Finite Lived Intangible Assets Amortization Expense Year Two
FiniteLivedIntangibleAssetsAmortizationExpenseYearTwo
|
7000000 | USD |
| CY2018Q4 | us-gaap |
Finite Lived Intangible Assets Gross
FiniteLivedIntangibleAssetsGross
|
234000000 | USD |
| CY2018Q4 | us-gaap |
Finite Lived Intangible Assets Net
FiniteLivedIntangibleAssetsNet
|
93000000 | USD |
| CY2016 | us-gaap |
Fuel Costs
FuelCosts
|
571000000 | USD |
| CY2017 | us-gaap |
Fuel Costs
FuelCosts
|
497000000 | USD |
| CY2018 | us-gaap |
Fuel Costs
FuelCosts
|
538000000 | USD |
| CY2016 | us-gaap |
Gain Loss On Sale Of Investments
GainLossOnSaleOfInvestments
|
50000000 | USD |
| CY2017 | us-gaap |
Gain Loss On Sale Of Investments
GainLossOnSaleOfInvestments
|
63000000 | USD |
| CY2018 | us-gaap |
Gain Loss On Sale Of Investments
GainLossOnSaleOfInvestments
|
9000000 | USD |
| CY2016Q4 | us-gaap |
Goodwill
Goodwill
|
5618000000 | USD |
| CY2017Q4 | us-gaap |
Goodwill
Goodwill
|
5618000000 | USD |
| CY2018Q4 | us-gaap |
Goodwill
Goodwill
|
5618000000 | USD |
| CY2018Q4 | us-gaap |
Guarantee Obligations Current Carrying Value
GuaranteeObligationsCurrentCarryingValue
|
1700000000 | USD |
| CY2018Q4 | us-gaap |
Guarantee Obligations Maximum Exposure
GuaranteeObligationsMaximumExposure
|
369000000 | USD |
| CY2016 | us-gaap |
Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest
IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest
|
1078000000 | USD |
| CY2017 | us-gaap |
Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest
IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest
|
1426000000 | USD |
| CY2018 | us-gaap |
Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest
IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest
|
1512000000 | USD |
| CY2017Q1 | us-gaap |
Income Loss From Continuing Operations Before Income Taxes Minority Interest And Income Loss From Equity Method Investments
IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments
|
400000000 | USD |
| CY2017Q2 | us-gaap |
Income Loss From Continuing Operations Before Income Taxes Minority Interest And Income Loss From Equity Method Investments
IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments
|
352000000 | USD |
| CY2017Q3 | us-gaap |
Income Loss From Continuing Operations Before Income Taxes Minority Interest And Income Loss From Equity Method Investments
IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments
|
503000000 | USD |
| CY2017Q4 | us-gaap |
Income Loss From Continuing Operations Before Income Taxes Minority Interest And Income Loss From Equity Method Investments
IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments
|
171000000 | USD |
| CY2018Q1 | us-gaap |
Income Loss From Continuing Operations Before Income Taxes Minority Interest And Income Loss From Equity Method Investments
IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments
|
414000000 | USD |
| CY2018Q2 | us-gaap |
Income Loss From Continuing Operations Before Income Taxes Minority Interest And Income Loss From Equity Method Investments
IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments
|
409000000 | USD |
| CY2018Q3 | us-gaap |
Income Loss From Continuing Operations Before Income Taxes Minority Interest And Income Loss From Equity Method Investments
IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments
|
520000000 | USD |
| CY2018Q4 | us-gaap |
Income Loss From Continuing Operations Before Income Taxes Minority Interest And Income Loss From Equity Method Investments
IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments
|
169000000 | USD |
| CY2016 | us-gaap |
Income Loss From Continuing Operations Including Portion Attributable To Noncontrolling Interest
IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest
|
551000000 | USD |
| CY2017Q1 | us-gaap |
Income Loss From Continuing Operations Including Portion Attributable To Noncontrolling Interest
IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest
|
251000000 | USD |
| CY2017Q2 | us-gaap |
Income Loss From Continuing Operations Including Portion Attributable To Noncontrolling Interest
IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest
|
220000000 | USD |
| CY2017Q3 | us-gaap |
Income Loss From Continuing Operations Including Portion Attributable To Noncontrolling Interest
IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest
|
301000000 | USD |
| CY2017Q4 | us-gaap |
Income Loss From Continuing Operations Including Portion Attributable To Noncontrolling Interest
IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest
|
-1061000000 | USD |
| CY2017 | us-gaap |
Income Loss From Continuing Operations Including Portion Attributable To Noncontrolling Interest
IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest
|
-289000000 | USD |
| CY2018Q1 | us-gaap |
Income Loss From Continuing Operations Including Portion Attributable To Noncontrolling Interest
IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest
|
165000000 | USD |
| CY2018Q2 | us-gaap |
Income Loss From Continuing Operations Including Portion Attributable To Noncontrolling Interest
IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest
|
288000000 | USD |
| CY2018Q3 | us-gaap |
Income Loss From Continuing Operations Including Portion Attributable To Noncontrolling Interest
IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest
|
387000000 | USD |
| CY2018Q4 | us-gaap |
Income Loss From Continuing Operations Including Portion Attributable To Noncontrolling Interest
IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest
|
182000000 | USD |
| CY2018 | us-gaap |
Income Loss From Continuing Operations Including Portion Attributable To Noncontrolling Interest
IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest
|
1022000000 | USD |
| CY2016 | us-gaap |
Income Loss From Continuing Operations Per Basic Share
IncomeLossFromContinuingOperationsPerBasicShare
|
1.29 | |
| CY2017Q1 | us-gaap |
Income Loss From Continuing Operations Per Basic Share
IncomeLossFromContinuingOperationsPerBasicShare
|
0.57 | |
| CY2017Q2 | us-gaap |
Income Loss From Continuing Operations Per Basic Share
IncomeLossFromContinuingOperationsPerBasicShare
|
0.49 | |
| CY2017Q3 | us-gaap |
Income Loss From Continuing Operations Per Basic Share
IncomeLossFromContinuingOperationsPerBasicShare
|
0.68 | |
| CY2017Q4 | us-gaap |
Income Loss From Continuing Operations Per Basic Share
IncomeLossFromContinuingOperationsPerBasicShare
|
-2.39 | |
| CY2017 | us-gaap |
Income Loss From Continuing Operations Per Basic Share
IncomeLossFromContinuingOperationsPerBasicShare
|
-0.65 | |
| CY2018Q1 | us-gaap |
Income Loss From Continuing Operations Per Basic Share
IncomeLossFromContinuingOperationsPerBasicShare
|
0.01 | |
| CY2018Q2 | us-gaap |
Income Loss From Continuing Operations Per Basic Share
IncomeLossFromContinuingOperationsPerBasicShare
|
0.27 | |
| CY2018Q3 | us-gaap |
Income Loss From Continuing Operations Per Basic Share
IncomeLossFromContinuingOperationsPerBasicShare
|
0.66 | |
| CY2018Q4 | us-gaap |
Income Loss From Continuing Operations Per Basic Share
IncomeLossFromContinuingOperationsPerBasicShare
|
0.34 | |
| CY2018 | us-gaap |
Income Loss From Continuing Operations Per Basic Share
IncomeLossFromContinuingOperationsPerBasicShare
|
1.33 | |
| CY2016 | us-gaap |
Income Loss From Continuing Operations Per Diluted Share
IncomeLossFromContinuingOperationsPerDilutedShare
|
1.29 | |
| CY2017Q1 | us-gaap |
Income Loss From Continuing Operations Per Diluted Share
IncomeLossFromContinuingOperationsPerDilutedShare
|
0.57 | |
| CY2017Q2 | us-gaap |
Income Loss From Continuing Operations Per Diluted Share
IncomeLossFromContinuingOperationsPerDilutedShare
|
0.49 | |
| CY2017Q3 | us-gaap |
Income Loss From Continuing Operations Per Diluted Share
IncomeLossFromContinuingOperationsPerDilutedShare
|
0.68 | |
| CY2017Q4 | us-gaap |
Income Loss From Continuing Operations Per Diluted Share
IncomeLossFromContinuingOperationsPerDilutedShare
|
-2.39 | |
| CY2017 | us-gaap |
Income Loss From Continuing Operations Per Diluted Share
IncomeLossFromContinuingOperationsPerDilutedShare
|
-0.65 | |
| CY2018Q1 | us-gaap |
Income Loss From Continuing Operations Per Diluted Share
IncomeLossFromContinuingOperationsPerDilutedShare
|
0.01 | |
| CY2018Q2 | us-gaap |
Income Loss From Continuing Operations Per Diluted Share
IncomeLossFromContinuingOperationsPerDilutedShare
|
0.27 | |
| CY2018Q3 | us-gaap |
Income Loss From Continuing Operations Per Diluted Share
IncomeLossFromContinuingOperationsPerDilutedShare
|
0.66 | |
| CY2018Q4 | us-gaap |
Income Loss From Continuing Operations Per Diluted Share
IncomeLossFromContinuingOperationsPerDilutedShare
|
0.34 | |
| CY2018 | us-gaap |
Income Loss From Continuing Operations Per Diluted Share
IncomeLossFromContinuingOperationsPerDilutedShare
|
1.33 | |
| CY2017Q1 | us-gaap |
Income Loss From Discontinued Operations Net Of Tax
IncomeLossFromDiscontinuedOperationsNetOfTax
|
-46000000 | USD |
| CY2017Q2 | us-gaap |
Income Loss From Discontinued Operations Net Of Tax
IncomeLossFromDiscontinuedOperationsNetOfTax
|
-46000000 | USD |
| CY2017Q3 | us-gaap |
Income Loss From Discontinued Operations Net Of Tax
IncomeLossFromDiscontinuedOperationsNetOfTax
|
95000000 | USD |
| CY2017Q4 | us-gaap |
Income Loss From Discontinued Operations Net Of Tax
IncomeLossFromDiscontinuedOperationsNetOfTax
|
-1438000000 | USD |
| CY2018Q1 | us-gaap |
Income Loss From Discontinued Operations Net Of Tax
IncomeLossFromDiscontinuedOperationsNetOfTax
|
1204000000 | USD |
| CY2018Q2 | us-gaap |
Income Loss From Discontinued Operations Net Of Tax
IncomeLossFromDiscontinuedOperationsNetOfTax
|
11000000 | USD |
| CY2018Q3 | us-gaap |
Income Loss From Discontinued Operations Net Of Tax
IncomeLossFromDiscontinuedOperationsNetOfTax
|
-845000000 | USD |
| CY2018Q4 | us-gaap |
Income Loss From Discontinued Operations Net Of Tax
IncomeLossFromDiscontinuedOperationsNetOfTax
|
-44000000 | USD |
| CY2016 | us-gaap |
Income Loss From Discontinued Operations Net Of Tax Attributable To Reporting Entity
IncomeLossFromDiscontinuedOperationsNetOfTaxAttributableToReportingEntity
|
-6728000000 | USD |
| CY2017 | us-gaap |
Income Loss From Discontinued Operations Net Of Tax Attributable To Reporting Entity
IncomeLossFromDiscontinuedOperationsNetOfTaxAttributableToReportingEntity
|
-1435000000 | USD |
| CY2018 | us-gaap |
Income Loss From Discontinued Operations Net Of Tax Attributable To Reporting Entity
IncomeLossFromDiscontinuedOperationsNetOfTaxAttributableToReportingEntity
|
326000000 | USD |
| CY2016 | us-gaap |
Income Loss From Discontinued Operations Net Of Tax Per Basic Share
IncomeLossFromDiscontinuedOperationsNetOfTaxPerBasicShare
|
-15.78 | |
| CY2017Q1 | us-gaap |
Income Loss From Discontinued Operations Net Of Tax Per Basic Share
IncomeLossFromDiscontinuedOperationsNetOfTaxPerBasicShare
|
-0.11 | |
| CY2017Q2 | us-gaap |
Income Loss From Discontinued Operations Net Of Tax Per Basic Share
IncomeLossFromDiscontinuedOperationsNetOfTaxPerBasicShare
|
-0.10 | |
| CY2017Q3 | us-gaap |
Income Loss From Discontinued Operations Net Of Tax Per Basic Share
IncomeLossFromDiscontinuedOperationsNetOfTaxPerBasicShare
|
0.21 | |
| CY2017Q4 | us-gaap |
Income Loss From Discontinued Operations Net Of Tax Per Basic Share
IncomeLossFromDiscontinuedOperationsNetOfTaxPerBasicShare
|
-3.23 | |
| CY2017 | us-gaap |
Income Loss From Discontinued Operations Net Of Tax Per Basic Share
IncomeLossFromDiscontinuedOperationsNetOfTaxPerBasicShare
|
-3.23 | |
| CY2018Q1 | us-gaap |
Income Loss From Discontinued Operations Net Of Tax Per Basic Share
IncomeLossFromDiscontinuedOperationsNetOfTaxPerBasicShare
|
2.54 | |
| CY2018Q2 | us-gaap |
Income Loss From Discontinued Operations Net Of Tax Per Basic Share
IncomeLossFromDiscontinuedOperationsNetOfTaxPerBasicShare
|
0.01 | |
| CY2018Q3 | us-gaap |
Income Loss From Discontinued Operations Net Of Tax Per Basic Share
IncomeLossFromDiscontinuedOperationsNetOfTaxPerBasicShare
|
-1.68 | |
| CY2018Q4 | us-gaap |
Income Loss From Discontinued Operations Net Of Tax Per Basic Share
IncomeLossFromDiscontinuedOperationsNetOfTaxPerBasicShare
|
-0.09 | |
| CY2018 | us-gaap |
Income Loss From Discontinued Operations Net Of Tax Per Basic Share
IncomeLossFromDiscontinuedOperationsNetOfTaxPerBasicShare
|
0.66 | |
| CY2016 | us-gaap |
Income Loss From Discontinued Operations Net Of Tax Per Diluted Share
IncomeLossFromDiscontinuedOperationsNetOfTaxPerDilutedShare
|
-15.78 | |
| CY2017Q1 | us-gaap |
Income Loss From Discontinued Operations Net Of Tax Per Diluted Share
IncomeLossFromDiscontinuedOperationsNetOfTaxPerDilutedShare
|
-0.11 | |
| CY2017Q2 | us-gaap |
Income Loss From Discontinued Operations Net Of Tax Per Diluted Share
IncomeLossFromDiscontinuedOperationsNetOfTaxPerDilutedShare
|
-0.10 | |
| CY2017Q3 | us-gaap |
Income Loss From Discontinued Operations Net Of Tax Per Diluted Share
IncomeLossFromDiscontinuedOperationsNetOfTaxPerDilutedShare
|
0.21 | |
| CY2017Q4 | us-gaap |
Income Loss From Discontinued Operations Net Of Tax Per Diluted Share
IncomeLossFromDiscontinuedOperationsNetOfTaxPerDilutedShare
|
-3.23 | |
| CY2017 | us-gaap |
Income Loss From Discontinued Operations Net Of Tax Per Diluted Share
IncomeLossFromDiscontinuedOperationsNetOfTaxPerDilutedShare
|
-3.23 | |
| CY2018Q1 | us-gaap |
Income Loss From Discontinued Operations Net Of Tax Per Diluted Share
IncomeLossFromDiscontinuedOperationsNetOfTaxPerDilutedShare
|
2.53 | |
| CY2018Q2 | us-gaap |
Income Loss From Discontinued Operations Net Of Tax Per Diluted Share
IncomeLossFromDiscontinuedOperationsNetOfTaxPerDilutedShare
|
0.01 | |
| CY2018Q3 | us-gaap |
Income Loss From Discontinued Operations Net Of Tax Per Diluted Share
IncomeLossFromDiscontinuedOperationsNetOfTaxPerDilutedShare
|
-1.68 | |
| CY2018Q4 | us-gaap |
Income Loss From Discontinued Operations Net Of Tax Per Diluted Share
IncomeLossFromDiscontinuedOperationsNetOfTaxPerDilutedShare
|
-0.09 | |
| CY2018 | us-gaap |
Income Loss From Discontinued Operations Net Of Tax Per Diluted Share
IncomeLossFromDiscontinuedOperationsNetOfTaxPerDilutedShare
|
0.66 | |
| CY2016 | us-gaap |
Income Tax Expense Benefit
IncomeTaxExpenseBenefit
|
527000000 | USD |
| CY2017Q1 | us-gaap |
Income Tax Expense Benefit
IncomeTaxExpenseBenefit
|
149000000 | USD |
| CY2017Q2 | us-gaap |
Income Tax Expense Benefit
IncomeTaxExpenseBenefit
|
132000000 | USD |
| CY2017Q3 | us-gaap |
Income Tax Expense Benefit
IncomeTaxExpenseBenefit
|
202000000 | USD |
| CY2017Q4 | us-gaap |
Income Tax Expense Benefit
IncomeTaxExpenseBenefit
|
1232000000 | USD |
| CY2017 | us-gaap |
Income Tax Expense Benefit
IncomeTaxExpenseBenefit
|
1715000000 | USD |
| CY2018Q1 | us-gaap |
Income Tax Expense Benefit
IncomeTaxExpenseBenefit
|
249000000 | USD |
| CY2018Q2 | us-gaap |
Income Tax Expense Benefit
IncomeTaxExpenseBenefit
|
121000000 | USD |
| CY2018Q3 | us-gaap |
Income Tax Expense Benefit
IncomeTaxExpenseBenefit
|
133000000 | USD |
| CY2018Q4 | us-gaap |
Income Tax Expense Benefit
IncomeTaxExpenseBenefit
|
-13000000 | USD |
| CY2018 | us-gaap |
Income Tax Expense Benefit
IncomeTaxExpenseBenefit
|
490000000 | USD |
| CY2016 | us-gaap |
Income Tax Rate Reconciliation Deductions Employee Stock Ownership Plan Dividends
IncomeTaxRateReconciliationDeductionsEmployeeStockOwnershipPlanDividends
|
4000000 | USD |
| CY2017 | us-gaap |
Income Tax Rate Reconciliation Deductions Employee Stock Ownership Plan Dividends
IncomeTaxRateReconciliationDeductionsEmployeeStockOwnershipPlanDividends
|
5000000 | USD |
| CY2018 | us-gaap |
Income Tax Rate Reconciliation Deductions Employee Stock Ownership Plan Dividends
IncomeTaxRateReconciliationDeductionsEmployeeStockOwnershipPlanDividends
|
3000000 | USD |
| CY2016 | us-gaap |
Income Tax Reconciliation Change In Deferred Tax Assets Valuation Allowance
IncomeTaxReconciliationChangeInDeferredTaxAssetsValuationAllowance
|
160000000 | USD |
| CY2017 | us-gaap |
Income Tax Reconciliation Change In Deferred Tax Assets Valuation Allowance
IncomeTaxReconciliationChangeInDeferredTaxAssetsValuationAllowance
|
11000000 | USD |
| CY2018 | us-gaap |
Income Tax Reconciliation Change In Deferred Tax Assets Valuation Allowance
IncomeTaxReconciliationChangeInDeferredTaxAssetsValuationAllowance
|
21000000 | USD |
| CY2016 | us-gaap |
Income Tax Reconciliation Change In Enacted Tax Rate
IncomeTaxReconciliationChangeInEnactedTaxRate
|
0 | USD |
| CY2017 | us-gaap |
Income Tax Reconciliation Change In Enacted Tax Rate
IncomeTaxReconciliationChangeInEnactedTaxRate
|
0 | USD |
| CY2018 | us-gaap |
Income Tax Reconciliation Change In Enacted Tax Rate
IncomeTaxReconciliationChangeInEnactedTaxRate
|
-60000000 | USD |
| CY2016 | us-gaap |
Income Tax Reconciliation Disposition Of Business
IncomeTaxReconciliationDispositionOfBusiness
|
0 | USD |
| CY2017 | us-gaap |
Income Tax Reconciliation Disposition Of Business
IncomeTaxReconciliationDispositionOfBusiness
|
0 | USD |
| CY2018 | us-gaap |
Income Tax Reconciliation Disposition Of Business
IncomeTaxReconciliationDispositionOfBusiness
|
126000000 | USD |
| CY2016 | us-gaap |
Income Tax Reconciliation Income Tax Expense Benefit At Federal Statutory Income Tax Rate
IncomeTaxReconciliationIncomeTaxExpenseBenefitAtFederalStatutoryIncomeTaxRate
|
377000000 | USD |
| CY2017 | us-gaap |
Income Tax Reconciliation Income Tax Expense Benefit At Federal Statutory Income Tax Rate
IncomeTaxReconciliationIncomeTaxExpenseBenefitAtFederalStatutoryIncomeTaxRate
|
499000000 | USD |
| CY2018 | us-gaap |
Income Tax Reconciliation Income Tax Expense Benefit At Federal Statutory Income Tax Rate
IncomeTaxReconciliationIncomeTaxExpenseBenefitAtFederalStatutoryIncomeTaxRate
|
318000000 | USD |
| CY2016 | us-gaap |
Income Tax Reconciliation Other Reconciling Items
IncomeTaxReconciliationOtherReconcilingItems
|
5000000 | USD |
| CY2017 | us-gaap |
Income Tax Reconciliation Other Reconciling Items
IncomeTaxReconciliationOtherReconcilingItems
|
1000000 | USD |
| CY2018 | us-gaap |
Income Tax Reconciliation Other Reconciling Items
IncomeTaxReconciliationOtherReconcilingItems
|
8000000 | USD |
| CY2016 | us-gaap |
Income Tax Reconciliation State And Local Income Taxes
IncomeTaxReconciliationStateAndLocalIncomeTaxes
|
16000000 | USD |
| CY2017 | us-gaap |
Income Tax Reconciliation State And Local Income Taxes
IncomeTaxReconciliationStateAndLocalIncomeTaxes
|
40000000 | USD |
| CY2018 | us-gaap |
Income Tax Reconciliation State And Local Income Taxes
IncomeTaxReconciliationStateAndLocalIncomeTaxes
|
90000000 | USD |
| CY2016 | us-gaap |
Income Tax Reconciliation Tax Credits Investment
IncomeTaxReconciliationTaxCreditsInvestment
|
6000000 | USD |
| CY2017 | us-gaap |
Income Tax Reconciliation Tax Credits Investment
IncomeTaxReconciliationTaxCreditsInvestment
|
6000000 | USD |
| CY2018 | us-gaap |
Income Tax Reconciliation Tax Credits Investment
IncomeTaxReconciliationTaxCreditsInvestment
|
5000000 | USD |
| CY2016 | us-gaap |
Income Tax Reconciliation Tax Settlements
IncomeTaxReconciliationTaxSettlements
|
-8000000 | USD |
| CY2017 | us-gaap |
Income Tax Reconciliation Tax Settlements
IncomeTaxReconciliationTaxSettlements
|
-3000000 | USD |
| CY2018 | us-gaap |
Income Tax Reconciliation Tax Settlements
IncomeTaxReconciliationTaxSettlements
|
2000000 | USD |
| CY2016 | us-gaap |
Income Taxes Paid Net
IncomeTaxesPaidNet
|
-16000000 | USD |
| CY2017 | us-gaap |
Income Taxes Paid Net
IncomeTaxesPaidNet
|
53000000 | USD |
| CY2018 | us-gaap |
Income Taxes Paid Net
IncomeTaxesPaidNet
|
49000000 | USD |
| CY2016 | us-gaap |
Increase Decrease In Accounts And Other Receivables
IncreaseDecreaseInAccountsAndOtherReceivables
|
11000000 | USD |
| CY2017 | us-gaap |
Increase Decrease In Accounts And Other Receivables
IncreaseDecreaseInAccountsAndOtherReceivables
|
39000000 | USD |
| CY2018 | us-gaap |
Increase Decrease In Accounts And Other Receivables
IncreaseDecreaseInAccountsAndOtherReceivables
|
248000000 | USD |
| CY2016 | us-gaap |
Increase Decrease In Accounts Payable Trade
IncreaseDecreaseInAccountsPayableTrade
|
-37000000 | USD |
| CY2017 | us-gaap |
Increase Decrease In Accounts Payable Trade
IncreaseDecreaseInAccountsPayableTrade
|
72000000 | USD |
| CY2018 | us-gaap |
Increase Decrease In Accounts Payable Trade
IncreaseDecreaseInAccountsPayableTrade
|
109000000 | USD |
| CY2016 | us-gaap |
Increase Decrease In Accrued Income Taxes Payable
IncreaseDecreaseInAccruedIncomeTaxesPayable
|
61000000 | USD |
| CY2017 | us-gaap |
Increase Decrease In Accrued Income Taxes Payable
IncreaseDecreaseInAccruedIncomeTaxesPayable
|
-9000000 | USD |
| CY2018 | us-gaap |
Increase Decrease In Accrued Income Taxes Payable
IncreaseDecreaseInAccruedIncomeTaxesPayable
|
0 | USD |
| CY2016 | us-gaap |
Increase Decrease In Deposits Outstanding
IncreaseDecreaseInDepositsOutstanding
|
116000000 | USD |
| CY2017 | us-gaap |
Increase Decrease In Deposits Outstanding
IncreaseDecreaseInDepositsOutstanding
|
-27000000 | USD |
| CY2018 | us-gaap |
Increase Decrease In Deposits Outstanding
IncreaseDecreaseInDepositsOutstanding
|
1000000 | USD |
| CY2016 | us-gaap |
Increase Decrease In Employee Related Liabilities
IncreaseDecreaseInEmployeeRelatedLiabilities
|
29000000 | USD |
| CY2017 | us-gaap |
Increase Decrease In Employee Related Liabilities
IncreaseDecreaseInEmployeeRelatedLiabilities
|
-27000000 | USD |
| CY2018 | us-gaap |
Increase Decrease In Employee Related Liabilities
IncreaseDecreaseInEmployeeRelatedLiabilities
|
37000000 | USD |
| CY2016 | us-gaap |
Increase Decrease In Inventories
IncreaseDecreaseInInventories
|
-41000000 | USD |
| CY2017 | us-gaap |
Increase Decrease In Inventories
IncreaseDecreaseInInventories
|
6000000 | USD |
| CY2018 | us-gaap |
Increase Decrease In Inventories
IncreaseDecreaseInInventories
|
-24000000 | USD |
| CY2016 | us-gaap |
Increase Decrease In Other Current Liabilities
IncreaseDecreaseInOtherCurrentLiabilities
|
56000000 | USD |
| CY2017 | us-gaap |
Increase Decrease In Other Current Liabilities
IncreaseDecreaseInOtherCurrentLiabilities
|
20000000 | USD |
| CY2018 | us-gaap |
Increase Decrease In Other Current Liabilities
IncreaseDecreaseInOtherCurrentLiabilities
|
-146000000 | USD |
| CY2016 | us-gaap |
Increase Decrease In Prepaid Deferred Expense And Other Assets
IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets
|
-27000000 | USD |
| CY2017 | us-gaap |
Increase Decrease In Prepaid Deferred Expense And Other Assets
IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets
|
-30000000 | USD |
| CY2018 | us-gaap |
Increase Decrease In Prepaid Deferred Expense And Other Assets
IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets
|
61000000 | USD |
| CY2018 | us-gaap |
Increase Decrease In Regulatory Assets And Liabilities
IncreaseDecreaseInRegulatoryAssetsAndLiabilities
|
273000000 | USD |
| CY2016 | us-gaap |
Incremental Common Shares Attributable To Share Based Payment Arrangements
IncrementalCommonSharesAttributableToShareBasedPaymentArrangements
|
0 | shares |
| CY2017 | us-gaap |
Incremental Common Shares Attributable To Share Based Payment Arrangements
IncrementalCommonSharesAttributableToShareBasedPaymentArrangements
|
0 | shares |
| CY2018 | us-gaap |
Incremental Common Shares Attributable To Share Based Payment Arrangements
IncrementalCommonSharesAttributableToShareBasedPaymentArrangements
|
2000000 | shares |
| CY2016 | us-gaap |
Interest And Debt Expense
InterestAndDebtExpense
|
973000000 | USD |
| CY2017 | us-gaap |
Interest And Debt Expense
InterestAndDebtExpense
|
1005000000 | USD |
| CY2018 | us-gaap |
Interest And Debt Expense
InterestAndDebtExpense
|
1116000000 | USD |
| CY2016 | us-gaap |
Interest Costs Capitalized
InterestCostsCapitalized
|
18000000 | USD |
| CY2017 | us-gaap |
Interest Costs Capitalized
InterestCostsCapitalized
|
17000000 | USD |
| CY2018 | us-gaap |
Interest Costs Capitalized
InterestCostsCapitalized
|
19000000 | USD |
| CY2016 | us-gaap |
Interest Costs Capitalized Adjustment
InterestCostsCapitalizedAdjustment
|
55000000 | USD |
| CY2017 | us-gaap |
Interest Costs Capitalized Adjustment
InterestCostsCapitalizedAdjustment
|
52000000 | USD |
| CY2018 | us-gaap |
Interest Costs Capitalized Adjustment
InterestCostsCapitalizedAdjustment
|
65000000 | USD |
| CY2016 | us-gaap |
Interest Expense
InterestExpense
|
973000000 | USD |
| CY2017 | us-gaap |
Interest Expense
InterestExpense
|
1005000000 | USD |
| CY2018 | us-gaap |
Interest Expense
InterestExpense
|
1116000000 | USD |
| CY2016 | us-gaap |
Interest Paid Net
InterestPaidNet
|
1050000000 | USD |
| CY2017 | us-gaap |
Interest Paid Net
InterestPaidNet
|
1039000000 | USD |
| CY2018 | us-gaap |
Interest Paid Net
InterestPaidNet
|
1071000000 | USD |
| CY2017Q4 | us-gaap |
Inventory Net
InventoryNet
|
236000000 | USD |
| CY2018Q4 | us-gaap |
Inventory Net
InventoryNet
|
252000000 | USD |
| CY2016 | us-gaap |
Investment Income Net
InvestmentIncomeNet
|
44000000 | USD |
| CY2017 | us-gaap |
Investment Income Net
InvestmentIncomeNet
|
53000000 | USD |
| CY2018 | us-gaap |
Investment Income Net
InvestmentIncomeNet
|
205000000 | USD |
| CY2016 | us-gaap |
Lease And Rental Expense
LeaseAndRentalExpense
|
62000000 | USD |
| CY2017 | us-gaap |
Lease And Rental Expense
LeaseAndRentalExpense
|
53000000 | USD |
| CY2017Q4 | us-gaap |
Liabilities And Stockholders Equity
LiabilitiesAndStockholdersEquity
|
42257000000 | USD |
| CY2018Q4 | us-gaap |
Liabilities And Stockholders Equity
LiabilitiesAndStockholdersEquity
|
40063000000 | USD |
| CY2017Q4 | us-gaap |
Liabilities Current
LiabilitiesCurrent
|
4113000000 | USD |
| CY2018 | us-gaap |
Lease And Rental Expense
LeaseAndRentalExpense
|
48000000 | USD |
| CY2017Q4 | us-gaap |
Liabilities Of Disposal Group Including Discontinued Operation Noncurrent
LiabilitiesOfDisposalGroupIncludingDiscontinuedOperationNoncurrent
|
3528000000 | USD |
| CY2018Q4 | us-gaap |
Liabilities Of Disposal Group Including Discontinued Operation Noncurrent
LiabilitiesOfDisposalGroupIncludingDiscontinuedOperationNoncurrent
|
0 | USD |
| CY2017Q4 | us-gaap |
Long Term Debt And Capital Lease Obligations
LongTermDebtAndCapitalLeaseObligations
|
18687000000 | USD |
| CY2018Q4 | us-gaap |
Liabilities Current
LiabilitiesCurrent
|
4634000000 | USD |
| CY2017Q4 | us-gaap |
Liabilities Noncurrent
LiabilitiesNoncurrent
|
15532000000 | USD |
| CY2018Q4 | us-gaap |
Liabilities Noncurrent
LiabilitiesNoncurrent
|
10864000000 | USD |
| CY2017Q4 | us-gaap |
Liabilities Of Disposal Group Including Discontinued Operation Current
LiabilitiesOfDisposalGroupIncludingDiscontinuedOperationCurrent
|
978000000 | USD |
| CY2018Q4 | us-gaap |
Liabilities Of Disposal Group Including Discontinued Operation Current
LiabilitiesOfDisposalGroupIncludingDiscontinuedOperationCurrent
|
0 | USD |
| CY2018Q4 | us-gaap |
Long Term Debt And Capital Lease Obligations
LongTermDebtAndCapitalLeaseObligations
|
17751000000 | USD |
| CY2017Q4 | us-gaap |
Long Term Debt And Capital Lease Obligations Current
LongTermDebtAndCapitalLeaseObligationsCurrent
|
558000000 | USD |
| CY2018Q4 | us-gaap |
Long Term Debt And Capital Lease Obligations Current
LongTermDebtAndCapitalLeaseObligationsCurrent
|
503000000 | USD |
| CY2017Q4 | us-gaap |
Long Term Debt Current
LongTermDebtCurrent
|
558000000 | USD |
| CY2018Q4 | us-gaap |
Long Term Debt Current
LongTermDebtCurrent
|
503000000 | USD |
| CY2018Q4 | us-gaap |
Long Term Debt Maturities Repayments Of Principal In Next Twelve Months
LongTermDebtMaturitiesRepaymentsOfPrincipalInNextTwelveMonths
|
489000000 | USD |
| CY2018Q4 | us-gaap |
Long Term Debt Maturities Repayments Of Principal In Year Five
LongTermDebtMaturitiesRepaymentsOfPrincipalInYearFive
|
1194000000 | USD |
| CY2018Q4 | us-gaap |
Long Term Debt Maturities Repayments Of Principal In Year Four
LongTermDebtMaturitiesRepaymentsOfPrincipalInYearFour
|
1143000000 | USD |
| CY2018Q4 | us-gaap |
Long Term Debt Maturities Repayments Of Principal In Year Three
LongTermDebtMaturitiesRepaymentsOfPrincipalInYearThree
|
132000000 | USD |
| CY2018Q4 | us-gaap |
Long Term Debt Maturities Repayments Of Principal In Year Two
LongTermDebtMaturitiesRepaymentsOfPrincipalInYearTwo
|
864000000 | USD |
| CY2017Q4 | us-gaap |
Long Term Investments
LongTermInvestments
|
3203000000 | USD |
| CY2018Q4 | us-gaap |
Long Term Investments
LongTermInvestments
|
1299000000 | USD |
| CY2017Q4 | us-gaap |
Longterm Pollution Control Bond Current And Noncurrent
LongtermPollutionControlBondCurrentAndNoncurrent
|
383000000 | USD |
| CY2018Q4 | us-gaap |
Longterm Pollution Control Bond Current And Noncurrent
LongtermPollutionControlBondCurrentAndNoncurrent
|
358000000 | USD |
| CY2017Q4 | us-gaap |
Longterm Transition Bond Current And Noncurrent
LongtermTransitionBondCurrentAndNoncurrent
|
56000000 | USD |
| CY2018Q4 | us-gaap |
Longterm Transition Bond Current And Noncurrent
LongtermTransitionBondCurrentAndNoncurrent
|
41000000 | USD |
| CY2016 | us-gaap |
Net Cash Provided By Used In Financing Activities
NetCashProvidedByUsedInFinancingActivities
|
-34000000 | USD |
| CY2017 | us-gaap |
Net Cash Provided By Used In Financing Activities
NetCashProvidedByUsedInFinancingActivities
|
-702000000 | USD |
| CY2018 | us-gaap |
Net Cash Provided By Used In Financing Activities
NetCashProvidedByUsedInFinancingActivities
|
1394000000 | USD |
| CY2016 | us-gaap |
Net Cash Provided By Used In Investing Activities
NetCashProvidedByUsedInInvestingActivities
|
-3302000000 | USD |
| CY2017 | us-gaap |
Net Cash Provided By Used In Investing Activities
NetCashProvidedByUsedInInvestingActivities
|
-2723000000 | USD |
| CY2018 | us-gaap |
Net Cash Provided By Used In Investing Activities
NetCashProvidedByUsedInInvestingActivities
|
-3018000000 | USD |
| CY2016 | us-gaap |
Net Cash Provided By Used In Operating Activities
NetCashProvidedByUsedInOperatingActivities
|
3383000000 | USD |
| CY2017 | us-gaap |
Net Cash Provided By Used In Operating Activities
NetCashProvidedByUsedInOperatingActivities
|
3808000000 | USD |
| CY2018 | us-gaap |
Net Cash Provided By Used In Operating Activities
NetCashProvidedByUsedInOperatingActivities
|
1410000000 | USD |
| CY2016 | us-gaap |
Net Income Loss
NetIncomeLoss
|
-6177000000 | USD |
| CY2017Q1 | us-gaap |
Net Income Loss
NetIncomeLoss
|
205000000 | USD |
| CY2017Q2 | us-gaap |
Net Income Loss
NetIncomeLoss
|
174000000 | USD |
| CY2017Q3 | us-gaap |
Net Income Loss
NetIncomeLoss
|
396000000 | USD |
| CY2017Q4 | us-gaap |
Net Income Loss
NetIncomeLoss
|
-2499000000 | USD |
| CY2017 | us-gaap |
Net Income Loss
NetIncomeLoss
|
-1724000000 | USD |
| CY2018Q1 | us-gaap |
Net Income Loss
NetIncomeLoss
|
1369000000 | USD |
| CY2018Q2 | us-gaap |
Net Income Loss
NetIncomeLoss
|
299000000 | USD |
| CY2018Q3 | us-gaap |
Net Income Loss
NetIncomeLoss
|
-458000000 | USD |
| CY2018Q4 | us-gaap |
Net Income Loss
NetIncomeLoss
|
138000000 | USD |
| CY2018 | us-gaap |
Net Income Loss
NetIncomeLoss
|
1348000000 | USD |
| CY2016 | us-gaap |
Net Income Loss Attributable To Noncontrolling Interest
NetIncomeLossAttributableToNoncontrollingInterest
|
0 | USD |
| CY2017 | us-gaap |
Net Income Loss Attributable To Noncontrolling Interest
NetIncomeLossAttributableToNoncontrollingInterest
|
0 | USD |
| CY2018 | us-gaap |
Net Income Loss Attributable To Noncontrolling Interest
NetIncomeLossAttributableToNoncontrollingInterest
|
367000000 | USD |
| CY2016 | us-gaap |
Net Income Loss Available To Common Stockholders Basic
NetIncomeLossAvailableToCommonStockholdersBasic
|
-6177000000 | USD |
| CY2017Q1 | us-gaap |
Net Income Loss Available To Common Stockholders Basic
NetIncomeLossAvailableToCommonStockholdersBasic
|
205000000 | USD |
| CY2017Q2 | us-gaap |
Net Income Loss Available To Common Stockholders Basic
NetIncomeLossAvailableToCommonStockholdersBasic
|
174000000 | USD |
| CY2017Q3 | us-gaap |
Net Income Loss Available To Common Stockholders Basic
NetIncomeLossAvailableToCommonStockholdersBasic
|
396000000 | USD |
| CY2017Q4 | us-gaap |
Net Income Loss Available To Common Stockholders Basic
NetIncomeLossAvailableToCommonStockholdersBasic
|
-2499000000 | USD |
| CY2017 | us-gaap |
Net Income Loss Available To Common Stockholders Basic
NetIncomeLossAvailableToCommonStockholdersBasic
|
-1724000000 | USD |
| CY2018Q1 | us-gaap |
Net Income Loss Available To Common Stockholders Basic
NetIncomeLossAvailableToCommonStockholdersBasic
|
1213000000 | USD |
| CY2018Q2 | us-gaap |
Net Income Loss Available To Common Stockholders Basic
NetIncomeLossAvailableToCommonStockholdersBasic
|
134000000 | USD |
| CY2018Q3 | us-gaap |
Net Income Loss Available To Common Stockholders Basic
NetIncomeLossAvailableToCommonStockholdersBasic
|
-512000000 | USD |
| CY2018Q4 | us-gaap |
Net Income Loss Available To Common Stockholders Basic
NetIncomeLossAvailableToCommonStockholdersBasic
|
128000000 | USD |
| CY2018 | us-gaap |
Net Income Loss Available To Common Stockholders Basic
NetIncomeLossAvailableToCommonStockholdersBasic
|
981000000 | USD |
| CY2016 | us-gaap |
Net Income Loss From Continuing Operations Available To Common Shareholders Basic
NetIncomeLossFromContinuingOperationsAvailableToCommonShareholdersBasic
|
551000000 | USD |
| CY2017 | us-gaap |
Net Income Loss From Continuing Operations Available To Common Shareholders Basic
NetIncomeLossFromContinuingOperationsAvailableToCommonShareholdersBasic
|
-289000000 | USD |
| CY2018 | us-gaap |
Net Income Loss From Continuing Operations Available To Common Shareholders Basic
NetIncomeLossFromContinuingOperationsAvailableToCommonShareholdersBasic
|
655000000 | USD |
| CY2016 | us-gaap |
Net Income Loss From Discontinued Operations Available To Common Shareholders Basic
NetIncomeLossFromDiscontinuedOperationsAvailableToCommonShareholdersBasic
|
-6728000000 | USD |
| CY2017 | us-gaap |
Net Income Loss From Discontinued Operations Available To Common Shareholders Basic
NetIncomeLossFromDiscontinuedOperationsAvailableToCommonShareholdersBasic
|
-1435000000 | USD |
| CY2018 | us-gaap |
Net Income Loss From Discontinued Operations Available To Common Shareholders Basic
NetIncomeLossFromDiscontinuedOperationsAvailableToCommonShareholdersBasic
|
326000000 | USD |
| CY2017Q4 | us-gaap |
Net Regulatory Assets
NetRegulatoryAssets
|
-2680000000 | USD |
| CY2018Q4 | us-gaap |
Net Regulatory Assets
NetRegulatoryAssets
|
-2407000000 | USD |
| CY2018 | us-gaap |
New Accounting Pronouncement Or Change In Accounting Principle Effect Of Adoption Quantification
NewAccountingPronouncementOrChangeInAccountingPrincipleEffectOfAdoptionQuantification
|
35000000 | USD |
| CY2016 | us-gaap |
Nonoperating Income Expense
NonoperatingIncomeExpense
|
-976000000 | USD |
| CY2017 | us-gaap |
Nonoperating Income Expense
NonoperatingIncomeExpense
|
-1002000000 | USD |
| CY2018 | us-gaap |
Nonoperating Income Expense
NonoperatingIncomeExpense
|
-990000000 | USD |
| CY2016 | us-gaap |
Operating Costs And Expenses
OperatingCostsAndExpenses
|
3310000000 | USD |
| CY2017 | us-gaap |
Operating Costs And Expenses
OperatingCostsAndExpenses
|
2926000000 | USD |
| CY2018 | us-gaap |
Operating Costs And Expenses
OperatingCostsAndExpenses
|
3109000000 | USD |
| CY2016 | us-gaap |
Operating Income Loss
OperatingIncomeLoss
|
2054000000 | USD |
| CY2017Q1 | us-gaap |
Operating Income Loss
OperatingIncomeLoss
|
616000000 | USD |
| CY2017Q2 | us-gaap |
Operating Income Loss
OperatingIncomeLoss
|
574000000 | USD |
| CY2017Q3 | us-gaap |
Operating Income Loss
OperatingIncomeLoss
|
733000000 | USD |
| CY2017Q4 | us-gaap |
Operating Income Loss
OperatingIncomeLoss
|
505000000 | USD |
| CY2017 | us-gaap |
Operating Income Loss
OperatingIncomeLoss
|
2428000000 | USD |
| CY2018Q1 | us-gaap |
Operating Income Loss
OperatingIncomeLoss
|
580000000 | USD |
| CY2018Q2 | us-gaap |
Operating Income Loss
OperatingIncomeLoss
|
700000000 | USD |
| CY2018Q3 | us-gaap |
Operating Income Loss
OperatingIncomeLoss
|
710000000 | USD |
| CY2018Q4 | us-gaap |
Operating Income Loss
OperatingIncomeLoss
|
512000000 | USD |
| CY2018 | us-gaap |
Operating Income Loss
OperatingIncomeLoss
|
2502000000 | USD |
| CY2018Q4 | us-gaap |
Operating Leases Future Minimum Payments Due
OperatingLeasesFutureMinimumPaymentsDue
|
289000000 | USD |
| CY2018Q4 | us-gaap |
Operating Leases Future Minimum Payments Due Current
OperatingLeasesFutureMinimumPaymentsDueCurrent
|
34000000 | USD |
| CY2018Q4 | us-gaap |
Operating Leases Future Minimum Payments Due In Five Years
OperatingLeasesFutureMinimumPaymentsDueInFiveYears
|
28000000 | USD |
| CY2018Q4 | us-gaap |
Operating Leases Future Minimum Payments Due In Four Years
OperatingLeasesFutureMinimumPaymentsDueInFourYears
|
30000000 | USD |
| CY2018Q4 | us-gaap |
Operating Leases Future Minimum Payments Due In Three Years
OperatingLeasesFutureMinimumPaymentsDueInThreeYears
|
34000000 | USD |
| CY2018Q4 | us-gaap |
Operating Leases Future Minimum Payments Due In Two Years
OperatingLeasesFutureMinimumPaymentsDueInTwoYears
|
36000000 | USD |
| CY2018Q4 | us-gaap |
Operating Leases Future Minimum Payments Due Thereafter
OperatingLeasesFutureMinimumPaymentsDueThereafter
|
127000000 | USD |
| CY2017Q4 | us-gaap |
Other Assets Noncurrent
OtherAssetsNoncurrent
|
697000000 | USD |
| CY2018Q4 | us-gaap |
Other Assets Noncurrent
OtherAssetsNoncurrent
|
752000000 | USD |
| CY2016 | us-gaap |
Other Comprehensive Income Loss Available For Sale Securities Adjustment Before Tax
OtherComprehensiveIncomeLossAvailableForSaleSecuritiesAdjustmentBeforeTax
|
55000000 | USD |
| CY2017 | us-gaap |
Other Comprehensive Income Loss Available For Sale Securities Adjustment Before Tax
OtherComprehensiveIncomeLossAvailableForSaleSecuritiesAdjustmentBeforeTax
|
22000000 | USD |
| CY2018 | us-gaap |
Other Comprehensive Income Loss Available For Sale Securities Adjustment Before Tax
OtherComprehensiveIncomeLossAvailableForSaleSecuritiesAdjustmentBeforeTax
|
-106000000 | USD |
| CY2016 | us-gaap |
Other Comprehensive Income Loss Before Tax
OtherComprehensiveIncomeLossBeforeTax
|
4000000 | USD |
| CY2017 | us-gaap |
Other Comprehensive Income Loss Before Tax
OtherComprehensiveIncomeLossBeforeTax
|
-53000000 | USD |
| CY2018 | us-gaap |
Other Comprehensive Income Loss Before Tax
OtherComprehensiveIncomeLossBeforeTax
|
-168000000 | USD |
| CY2016 | us-gaap |
Other Comprehensive Income Loss Derivatives Qualifying As Hedges Before Tax
OtherComprehensiveIncomeLossDerivativesQualifyingAsHedgesBeforeTax
|
8000000 | USD |
| CY2017 | us-gaap |
Other Comprehensive Income Loss Derivatives Qualifying As Hedges Before Tax
OtherComprehensiveIncomeLossDerivativesQualifyingAsHedgesBeforeTax
|
10000000 | USD |
| CY2018 | us-gaap |
Other Comprehensive Income Loss Derivatives Qualifying As Hedges Before Tax
OtherComprehensiveIncomeLossDerivativesQualifyingAsHedgesBeforeTax
|
21000000 | USD |
| CY2016 | us-gaap |
Other Comprehensive Income Loss Net Of Tax
OtherComprehensiveIncomeLossNetOfTax
|
3000000 | USD |
| CY2017 | us-gaap |
Other Comprehensive Income Loss Net Of Tax
OtherComprehensiveIncomeLossNetOfTax
|
-32000000 | USD |
| CY2018 | us-gaap |
Other Comprehensive Income Loss Net Of Tax
OtherComprehensiveIncomeLossNetOfTax
|
-101000000 | USD |
| CY2016 | us-gaap |
Other Comprehensive Income Loss Pension And Other Postretirement Benefit Plans Adjustment Before Tax
OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentBeforeTax
|
59000000 | USD |
| CY2017 | us-gaap |
Other Comprehensive Income Loss Pension And Other Postretirement Benefit Plans Adjustment Before Tax
OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentBeforeTax
|
85000000 | USD |
| CY2018 | us-gaap |
Other Comprehensive Income Loss Pension And Other Postretirement Benefit Plans Adjustment Before Tax
OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentBeforeTax
|
83000000 | USD |
| CY2016 | us-gaap |
Other Comprehensive Income Loss Tax
OtherComprehensiveIncomeLossTax
|
1000000 | USD |
| CY2017 | us-gaap |
Other Comprehensive Income Loss Tax
OtherComprehensiveIncomeLossTax
|
-21000000 | USD |
| CY2018 | us-gaap |
Other Comprehensive Income Loss Tax
OtherComprehensiveIncomeLossTax
|
-67000000 | USD |
| CY2016 | us-gaap |
Other Comprehensive Income Unrealized Gain Loss On Derivatives Arising During Period Net Of Tax
OtherComprehensiveIncomeUnrealizedGainLossOnDerivativesArisingDuringPeriodNetOfTax
|
3000000 | USD |
| CY2017 | us-gaap |
Other Comprehensive Income Unrealized Gain Loss On Derivatives Arising During Period Net Of Tax
OtherComprehensiveIncomeUnrealizedGainLossOnDerivativesArisingDuringPeriodNetOfTax
|
-32000000 | USD |
| CY2016 | us-gaap |
Other Cost And Expense Operating
OtherCostAndExpenseOperating
|
2579000000 | USD |
| CY2017Q1 | us-gaap |
Other Cost And Expense Operating
OtherCostAndExpenseOperating
|
650000000 | USD |
| CY2017Q2 | us-gaap |
Other Cost And Expense Operating
OtherCostAndExpenseOperating
|
657000000 | USD |
| CY2017Q3 | us-gaap |
Other Cost And Expense Operating
OtherCostAndExpenseOperating
|
651000000 | USD |
| CY2017Q4 | us-gaap |
Other Cost And Expense Operating
OtherCostAndExpenseOperating
|
803000000 | USD |
| CY2017 | us-gaap |
Other Cost And Expense Operating
OtherCostAndExpenseOperating
|
2761000000 | USD |
| CY2018Q1 | us-gaap |
Other Cost And Expense Operating
OtherCostAndExpenseOperating
|
940000000 | USD |
| CY2018Q2 | us-gaap |
Other Cost And Expense Operating
OtherCostAndExpenseOperating
|
684000000 | USD |
| CY2018Q3 | us-gaap |
Other Cost And Expense Operating
OtherCostAndExpenseOperating
|
739000000 | USD |
| CY2018Q4 | us-gaap |
Other Cost And Expense Operating
OtherCostAndExpenseOperating
|
770000000 | USD |
| CY2018 | us-gaap |
Other Cost And Expense Operating
OtherCostAndExpenseOperating
|
3133000000 | USD |
| CY2017Q4 | us-gaap |
Other Liabilities Current
OtherLiabilitiesCurrent
|
621000000 | USD |
| CY2018Q4 | us-gaap |
Other Liabilities Current
OtherLiabilitiesCurrent
|
1026000000 | USD |
| CY2017Q4 | us-gaap |
Other Liabilities Noncurrent
OtherLiabilitiesNoncurrent
|
1438000000 | USD |
| CY2018Q4 | us-gaap |
Other Liabilities Noncurrent
OtherLiabilitiesNoncurrent
|
2057000000 | USD |
| CY2017Q4 | us-gaap |
Other Long Term Investments
OtherLongTermInvestments
|
255000000 | USD |
| CY2018Q4 | us-gaap |
Other Long Term Investments
OtherLongTermInvestments
|
253000000 | USD |
| CY2016 | us-gaap |
Other Operating Activities Cash Flow Statement
OtherOperatingActivitiesCashFlowStatement
|
92000000 | USD |
| CY2017 | us-gaap |
Other Operating Activities Cash Flow Statement
OtherOperatingActivitiesCashFlowStatement
|
316000000 | USD |
| CY2018 | us-gaap |
Other Operating Activities Cash Flow Statement
OtherOperatingActivitiesCashFlowStatement
|
129000000 | USD |
| CY2017Q4 | us-gaap |
Other Receivables
OtherReceivables
|
170000000 | USD |
| CY2018Q4 | us-gaap |
Other Receivables
OtherReceivables
|
270000000 | USD |
| CY2016 | us-gaap |
Other Than Temporary Impairment Losses Investments Portion Recognized In Earnings Net Availableforsale Securities
OtherThanTemporaryImpairmentLossesInvestmentsPortionRecognizedInEarningsNetAvailableforsaleSecurities
|
-2000000 | USD |
| CY2017 | us-gaap |
Other Than Temporary Impairment Losses Investments Portion Recognized In Earnings Net Availableforsale Securities
OtherThanTemporaryImpairmentLossesInvestmentsPortionRecognizedInEarningsNetAvailableforsaleSecurities
|
0 | USD |
| CY2018 | us-gaap |
Other Than Temporary Impairment Losses Investments Portion Recognized In Earnings Net Availableforsale Securities
OtherThanTemporaryImpairmentLossesInvestmentsPortionRecognizedInEarningsNetAvailableforsaleSecurities
|
0 | USD |
| CY2016 | us-gaap |
Payments For Nuclear Fuel
PaymentsForNuclearFuel
|
232000000 | USD |
| CY2017 | us-gaap |
Payments For Nuclear Fuel
PaymentsForNuclearFuel
|
254000000 | USD |
| CY2018 | us-gaap |
Payments For Nuclear Fuel
PaymentsForNuclearFuel
|
0 | USD |
| CY2016 | us-gaap |
Payments For Proceeds From Investments
PaymentsForProceedsFromInvestments
|
0 | USD |
| CY2017 | us-gaap |
Payments For Proceeds From Investments
PaymentsForProceedsFromInvestments
|
0 | USD |
| CY2018 | us-gaap |
Payments For Proceeds From Investments
PaymentsForProceedsFromInvestments
|
500000000 | USD |
| CY2016 | us-gaap |
Payments For Proceeds From Other Investing Activities
PaymentsForProceedsFromOtherInvestingActivities
|
-6000000 | USD |
| CY2017 | us-gaap |
Payments For Proceeds From Other Investing Activities
PaymentsForProceedsFromOtherInvestingActivities
|
0 | USD |
| CY2018 | us-gaap |
Payments For Proceeds From Other Investing Activities
PaymentsForProceedsFromOtherInvestingActivities
|
-4000000 | USD |
| CY2016 | us-gaap |
Payments For Removal Costs
PaymentsForRemovalCosts
|
145000000 | USD |
| CY2017 | us-gaap |
Payments For Removal Costs
PaymentsForRemovalCosts
|
172000000 | USD |
| CY2018 | us-gaap |
Payments For Removal Costs
PaymentsForRemovalCosts
|
218000000 | USD |
| CY2016 | us-gaap |
Payments Of Dividends Common Stock
PaymentsOfDividendsCommonStock
|
611000000 | USD |
| CY2017 | us-gaap |
Payments Of Dividends Common Stock
PaymentsOfDividendsCommonStock
|
639000000 | USD |
| CY2018 | us-gaap |
Payments Of Dividends Common Stock
PaymentsOfDividendsCommonStock
|
711000000 | USD |
| CY2016 | us-gaap |
Payments Of Dividends Preferred Stock And Preference Stock
PaymentsOfDividendsPreferredStockAndPreferenceStock
|
0 | USD |
| CY2017 | us-gaap |
Payments Of Dividends Preferred Stock And Preference Stock
PaymentsOfDividendsPreferredStockAndPreferenceStock
|
0 | USD |
| CY2018 | us-gaap |
Payments Of Dividends Preferred Stock And Preference Stock
PaymentsOfDividendsPreferredStockAndPreferenceStock
|
61000000 | USD |
| CY2016 | us-gaap |
Payments To Acquire Available For Sale Securities
PaymentsToAcquireAvailableForSaleSecurities
|
1789000000 | USD |
| CY2017 | us-gaap |
Payments To Acquire Available For Sale Securities
PaymentsToAcquireAvailableForSaleSecurities
|
2268000000 | USD |
| CY2018 | us-gaap |
Payments To Acquire Available For Sale Securities
PaymentsToAcquireAvailableForSaleSecurities
|
963000000 | USD |
| CY2016 | us-gaap |
Payments To Acquire Productive Assets
PaymentsToAcquireProductiveAssets
|
2835000000 | USD |
| CY2017 | us-gaap |
Payments To Acquire Productive Assets
PaymentsToAcquireProductiveAssets
|
2587000000 | USD |
| CY2018 | us-gaap |
Payments To Acquire Productive Assets
PaymentsToAcquireProductiveAssets
|
2675000000 | USD |
| CY2016 | us-gaap |
Pension And Other Postretirement Benefit Contributions
PensionAndOtherPostretirementBenefitContributions
|
-64000000 | USD |
| CY2017 | us-gaap |
Pension And Other Postretirement Benefit Contributions
PensionAndOtherPostretirementBenefitContributions
|
-29000000 | USD |
| CY2018 | us-gaap |
Pension And Other Postretirement Benefit Contributions
PensionAndOtherPostretirementBenefitContributions
|
137000000 | USD |
| CY2017Q4 | us-gaap |
Pension And Other Postretirement Defined Benefit Plans Liabilities Noncurrent
PensionAndOtherPostretirementDefinedBenefitPlansLiabilitiesNoncurrent
|
3975000000 | USD |
| CY2018Q4 | us-gaap |
Pension And Other Postretirement Defined Benefit Plans Liabilities Noncurrent
PensionAndOtherPostretirementDefinedBenefitPlansLiabilitiesNoncurrent
|
2906000000 | USD |
| CY2016Q4 | us-gaap |
Pension Contributions
PensionContributions
|
500000000 | USD |
| CY2016 | us-gaap |
Pension Contributions
PensionContributions
|
382000000 | USD |
| CY2017 | us-gaap |
Pension Contributions
PensionContributions
|
0 | USD |
| CY2018 | us-gaap |
Pension Contributions
PensionContributions
|
1250000000 | USD |
| CY2018Q1 | us-gaap |
Preferred Stock Liquidation Preference Value
PreferredStockLiquidationPreferenceValue
|
1000 | USD |
| CY2018Q4 | us-gaap |
Preferred Stock Par Or Stated Value Per Share
PreferredStockParOrStatedValuePerShare
|
100 | |
| CY2018Q1 | us-gaap |
Preferred Stock Par Or Stated Value Per Share
PreferredStockParOrStatedValuePerShare
|
100 | |
| CY2018Q1 | us-gaap |
Preferred Stock Redemption Price Per Share
PreferredStockRedemptionPricePerShare
|
27.42 | |
| CY2018Q4 | us-gaap |
Preferred Stock Shares Authorized
PreferredStockSharesAuthorized
|
5000000 | shares |
| CY2017Q4 | us-gaap |
Preferred Stock Shares Outstanding
PreferredStockSharesOutstanding
|
0 | shares |
| CY2018Q4 | us-gaap |
Preferred Stock Shares Outstanding
PreferredStockSharesOutstanding
|
0 | shares |
| CY2017Q4 | us-gaap |
Preferred Stock Value Outstanding
PreferredStockValueOutstanding
|
0 | USD |
| CY2018Q4 | us-gaap |
Preferred Stock Value Outstanding
PreferredStockValueOutstanding
|
71000000 | USD |
| CY2016 | us-gaap |
Proceeds From Issuance Of Common Stock
ProceedsFromIssuanceOfCommonStock
|
0 | USD |
| CY2017 | us-gaap |
Proceeds From Issuance Of Common Stock
ProceedsFromIssuanceOfCommonStock
|
0 | USD |
| CY2018 | us-gaap |
Proceeds From Issuance Of Common Stock
ProceedsFromIssuanceOfCommonStock
|
850000000 | USD |
| CY2016 | us-gaap |
Proceeds From Issuance Of Long Term Debt
ProceedsFromIssuanceOfLongTermDebt
|
1976000000 | USD |
| CY2017 | us-gaap |
Proceeds From Issuance Of Long Term Debt
ProceedsFromIssuanceOfLongTermDebt
|
4675000000 | USD |
| CY2018 | us-gaap |
Proceeds From Issuance Of Long Term Debt
ProceedsFromIssuanceOfLongTermDebt
|
1474000000 | USD |
| CY2016 | us-gaap |
Proceeds From Issuance Of Preferred Stock And Preference Stock
ProceedsFromIssuanceOfPreferredStockAndPreferenceStock
|
0 | USD |
| CY2017 | us-gaap |
Proceeds From Issuance Of Preferred Stock And Preference Stock
ProceedsFromIssuanceOfPreferredStockAndPreferenceStock
|
0 | USD |
| CY2018 | us-gaap |
Proceeds From Issuance Of Preferred Stock And Preference Stock
ProceedsFromIssuanceOfPreferredStockAndPreferenceStock
|
1616000000 | USD |
| CY2018Q1 | us-gaap |
Proceeds From Issuance Or Sale Of Equity
ProceedsFromIssuanceOrSaleOfEquity
|
2500000000 | USD |
| CY2016 | us-gaap |
Proceeds From Payments For Other Financing Activities
ProceedsFromPaymentsForOtherFinancingActivities
|
-43000000 | USD |
| CY2017 | us-gaap |
Proceeds From Payments For Other Financing Activities
ProceedsFromPaymentsForOtherFinancingActivities
|
-72000000 | USD |
| CY2018 | us-gaap |
Proceeds From Payments For Other Financing Activities
ProceedsFromPaymentsForOtherFinancingActivities
|
-27000000 | USD |
| CY2016 | us-gaap |
Proceeds From Sale Of Available For Sale Securities
ProceedsFromSaleOfAvailableForSaleSecurities
|
1678000000 | USD |
| CY2017 | us-gaap |
Proceeds From Sale Of Available For Sale Securities
ProceedsFromSaleOfAvailableForSaleSecurities
|
2170000000 | USD |
| CY2018 | us-gaap |
Proceeds From Sale Of Available For Sale Securities
ProceedsFromSaleOfAvailableForSaleSecurities
|
909000000 | USD |
| CY2016 | us-gaap |
Proceeds From Sale Of Productive Assets
ProceedsFromSaleOfProductiveAssets
|
15000000 | USD |
| CY2017 | us-gaap |
Proceeds From Sale Of Productive Assets
ProceedsFromSaleOfProductiveAssets
|
388000000 | USD |
| CY2018 | us-gaap |
Proceeds From Sale Of Productive Assets
ProceedsFromSaleOfProductiveAssets
|
425000000 | USD |
| CY2016 | us-gaap |
Proceeds From Short Term Debt
ProceedsFromShortTermDebt
|
975000000 | USD |
| CY2017 | us-gaap |
Proceeds From Short Term Debt
ProceedsFromShortTermDebt
|
0 | USD |
| CY2018 | us-gaap |
Proceeds From Short Term Debt
ProceedsFromShortTermDebt
|
950000000 | USD |
| CY2017 | us-gaap |
Proceeds From Stock Options Exercised
ProceedsFromStockOptionsExercised
|
0 | USD |
| CY2018 | us-gaap |
Proceeds From Stock Options Exercised
ProceedsFromStockOptionsExercised
|
12000000 | USD |
| CY2017Q4 | us-gaap |
Property Plant And Equipment Gross
PropertyPlantAndEquipmentGross
|
37113000000 | USD |
| CY2018Q4 | us-gaap |
Property Plant And Equipment Gross
PropertyPlantAndEquipmentGross
|
39469000000 | USD |
| CY2017Q4 | us-gaap |
Property Plant And Equipment Net
PropertyPlantAndEquipmentNet
|
28101000000 | USD |
| CY2018Q4 | us-gaap |
Property Plant And Equipment Net
PropertyPlantAndEquipmentNet
|
29911000000 | USD |
| CY2016 | us-gaap |
Public Utilities Allowance For Funds Used During Construction Capitalized Cost Of Equity
PublicUtilitiesAllowanceForFundsUsedDuringConstructionCapitalizedCostOfEquity
|
37000000 | USD |
| CY2017 | us-gaap |
Public Utilities Allowance For Funds Used During Construction Capitalized Cost Of Equity
PublicUtilitiesAllowanceForFundsUsedDuringConstructionCapitalizedCostOfEquity
|
35000000 | USD |
| CY2018 | us-gaap |
Public Utilities Allowance For Funds Used During Construction Capitalized Cost Of Equity
PublicUtilitiesAllowanceForFundsUsedDuringConstructionCapitalizedCostOfEquity
|
46000000 | USD |
| CY2017Q4 | us-gaap |
Public Utilities Property Plant And Equipment Construction Work In Progress
PublicUtilitiesPropertyPlantAndEquipmentConstructionWorkInProgress
|
999000000 | USD |
| CY2018Q4 | us-gaap |
Public Utilities Property Plant And Equipment Construction Work In Progress
PublicUtilitiesPropertyPlantAndEquipmentConstructionWorkInProgress
|
1235000000 | USD |
| CY2016 | us-gaap |
Public Utilities Property Plant And Equipment Disclosure Of Composite Depreciation Rate For Plants In Service
PublicUtilitiesPropertyPlantAndEquipmentDisclosureOfCompositeDepreciationRateForPlantsInService
|
0.023 | |
| CY2017 | us-gaap |
Public Utilities Property Plant And Equipment Disclosure Of Composite Depreciation Rate For Plants In Service
PublicUtilitiesPropertyPlantAndEquipmentDisclosureOfCompositeDepreciationRateForPlantsInService
|
0.024 | |
| CY2018 | us-gaap |
Public Utilities Property Plant And Equipment Disclosure Of Composite Depreciation Rate For Plants In Service
PublicUtilitiesPropertyPlantAndEquipmentDisclosureOfCompositeDepreciationRateForPlantsInService
|
0.026 | |
| CY2016 | us-gaap |
Real Estate Taxes And Insurance
RealEstateTaxesAndInsurance
|
421000000 | USD |
| CY2017 | us-gaap |
Real Estate Taxes And Insurance
RealEstateTaxesAndInsurance
|
452000000 | USD |
| CY2018 | us-gaap |
Real Estate Taxes And Insurance
RealEstateTaxesAndInsurance
|
478000000 | USD |
| CY2017Q4 | us-gaap |
Regulatory Assets Noncurrent
RegulatoryAssetsNoncurrent
|
40000000 | USD |
| CY2018Q4 | us-gaap |
Regulatory Assets Noncurrent
RegulatoryAssetsNoncurrent
|
91000000 | USD |
| CY2017Q4 | us-gaap |
Regulatory Liability Noncurrent
RegulatoryLiabilityNoncurrent
|
2720000000 | USD |
| CY2018Q4 | us-gaap |
Regulatory Liability Noncurrent
RegulatoryLiabilityNoncurrent
|
2498000000 | USD |
| CY2017Q4 | us-gaap |
Remaining Amounts Of Regulatory Assets For Which No Return On Investment During Recovery Period Is Provided
RemainingAmountsOfRegulatoryAssetsForWhichNoReturnOnInvestmentDuringRecoveryPeriodIsProvided
|
223000000 | USD |
| CY2018Q4 | us-gaap |
Remaining Amounts Of Regulatory Assets For Which No Return On Investment During Recovery Period Is Provided
RemainingAmountsOfRegulatoryAssetsForWhichNoReturnOnInvestmentDuringRecoveryPeriodIsProvided
|
503000000 | USD |
| CY2016 | us-gaap |
Repayments Of Long Term Debt
RepaymentsOfLongTermDebt
|
2331000000 | USD |
| CY2017 | us-gaap |
Repayments Of Long Term Debt
RepaymentsOfLongTermDebt
|
2291000000 | USD |
| CY2018 | us-gaap |
Repayments Of Long Term Debt
RepaymentsOfLongTermDebt
|
2608000000 | USD |
| CY2016 | us-gaap |
Repayments Of Short Term Debt
RepaymentsOfShortTermDebt
|
0 | USD |
| CY2017 | us-gaap |
Repayments Of Short Term Debt
RepaymentsOfShortTermDebt
|
2375000000 | USD |
| CY2018 | us-gaap |
Repayments Of Short Term Debt
RepaymentsOfShortTermDebt
|
0 | USD |
| CY2017Q4 | us-gaap |
Restricted Cash Current
RestrictedCashCurrent
|
51000000 | USD |
| CY2018Q4 | us-gaap |
Restricted Cash Current
RestrictedCashCurrent
|
62000000 | USD |
| CY2017Q4 | us-gaap |
Retained Earnings Accumulated Deficit
RetainedEarningsAccumulatedDeficit
|
-6262000000 | USD |
| CY2018Q4 | us-gaap |
Retained Earnings Accumulated Deficit
RetainedEarningsAccumulatedDeficit
|
-4900000000 | USD |
| CY2018Q4 | us-gaap |
Retained Earnings Accumulated Deficit
RetainedEarningsAccumulatedDeficit
|
-4879000000 | USD |
| CY2018 | us-gaap |
Revenue From Contract With Customer Excluding Assessed Tax
RevenueFromContractWithCustomerExcludingAssessedTax
|
10944000000 | USD |
| CY2016 | us-gaap |
Revenues
Revenues
|
10700000000 | USD |
| CY2017Q1 | us-gaap |
Revenues
Revenues
|
2776000000 | USD |
| CY2017Q2 | us-gaap |
Revenues
Revenues
|
2561000000 | USD |
| CY2017Q3 | us-gaap |
Revenues
Revenues
|
2910000000 | USD |
| CY2017Q4 | us-gaap |
Revenues
Revenues
|
2681000000 | USD |
| CY2017 | us-gaap |
Revenues
Revenues
|
10928000000 | USD |
| CY2018Q1 | us-gaap |
Revenues
Revenues
|
2862000000 | USD |
| CY2018Q2 | us-gaap |
Revenues
Revenues
|
2625000000 | USD |
| CY2018Q3 | us-gaap |
Revenues
Revenues
|
3064000000 | USD |
| CY2018Q4 | us-gaap |
Revenues
Revenues
|
2710000000 | USD |
| CY2018 | us-gaap |
Revenues
Revenues
|
11261000000 | USD |
| CY2017Q4 | us-gaap |
Securities Loaned
SecuritiesLoaned
|
39000000 | USD |
| CY2018Q4 | us-gaap |
Securities Loaned
SecuritiesLoaned
|
39000000 | USD |
| CY2018 | us-gaap |
Share Based Compensation Arrangement By Share Based Payment Award Award Vesting Period1
ShareBasedCompensationArrangementByShareBasedPaymentAwardAwardVestingPeriod1
|
P3Y | |
| CY2017 | us-gaap |
Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Share Based Liabilities Paid
ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsShareBasedLiabilitiesPaid
|
0 | USD |
| CY2018 | us-gaap |
Share Based Compensation Arrangement By Share Based Payment Award Options Forfeitures In Period
ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeituresInPeriod
|
300000 | shares |
| CY2018 | us-gaap |
Share Based Compensation Arrangement By Share Based Payment Award Options Grants In Period Gross
ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodGross
|
0 | shares |
| CY2017Q4 | us-gaap |
Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Number
ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber
|
1400000 | shares |
| CY2018Q4 | us-gaap |
Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Number
ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber
|
800000 | shares |
| CY2017Q4 | us-gaap |
Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Weighted Average Exercise Price
ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice
|
44.41 | |
| CY2018Q4 | us-gaap |
Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Weighted Average Exercise Price
ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice
|
37.37 | |
| CY2018 | us-gaap |
Share Based Compensation Arrangements By Share Based Payment Award Options Exercises In Period Weighted Average Exercise Price
ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsExercisesInPeriodWeightedAverageExercisePrice
|
35.45 | |
| CY2018 | us-gaap |
Share Based Compensation Arrangements By Share Based Payment Award Options Forfeitures In Period Weighted Average Exercise Price
ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsForfeituresInPeriodWeightedAverageExercisePrice
|
79.99 | |
| CY2016 | us-gaap |
Sharebased Compensation Arrangement By Sharebased Payment Award Compensation Cost1
SharebasedCompensationArrangementBySharebasedPaymentAwardCompensationCost1
|
105000000 | USD |
| CY2017 | us-gaap |
Sharebased Compensation Arrangement By Sharebased Payment Award Compensation Cost1
SharebasedCompensationArrangementBySharebasedPaymentAwardCompensationCost1
|
98000000 | USD |
| CY2018 | us-gaap |
Sharebased Compensation Arrangement By Sharebased Payment Award Compensation Cost1
SharebasedCompensationArrangementBySharebasedPaymentAwardCompensationCost1
|
143000000 | USD |
| CY2018 | us-gaap |
Sharebased Compensation Arrangement By Sharebased Payment Award Expiration Period
SharebasedCompensationArrangementBySharebasedPaymentAwardExpirationPeriod
|
P10Y | |
| CY2018 | us-gaap |
Sharebased Compensation Arrangement By Sharebased Payment Award Options Outstanding Weighted Average Remaining Contractual Term2
SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsOutstandingWeightedAverageRemainingContractualTerm2
|
P1Y4M6D | |
| CY2017Q4 | us-gaap |
Short Term Borrowings
ShortTermBorrowings
|
300000000 | USD |
| CY2018Q4 | us-gaap |
Short Term Borrowings
ShortTermBorrowings
|
1250000000 | USD |
| CY2017Q4 | us-gaap |
Short Term Debt Weighted Average Interest Rate
ShortTermDebtWeightedAverageInterestRate
|
0.0324 | |
| CY2018Q4 | us-gaap |
Short Term Debt Weighted Average Interest Rate
ShortTermDebtWeightedAverageInterestRate
|
0.0307 | |
| CY2018Q1 | us-gaap |
Significant Change In Unrecognized Tax Benefits Is Reasonably Possible Amount Of Unrecorded Benefit
SignificantChangeInUnrecognizedTaxBenefitsIsReasonablyPossibleAmountOfUnrecordedBenefit
|
45000000 | USD |
| CY2016 | us-gaap |
Stock Granted During Period Value Sharebased Compensation
StockGrantedDuringPeriodValueSharebasedCompensation
|
49000000 | USD |
| CY2017 | us-gaap |
Stock Granted During Period Value Sharebased Compensation
StockGrantedDuringPeriodValueSharebasedCompensation
|
36000000 | USD |
| CY2018 | us-gaap |
Stock Granted During Period Value Sharebased Compensation
StockGrantedDuringPeriodValueSharebasedCompensation
|
60000000 | USD |
| CY2016 | us-gaap |
Stock Issued1
StockIssued1
|
500000000 | USD |
| CY2017 | us-gaap |
Stock Issued1
StockIssued1
|
0 | USD |
| CY2018 | us-gaap |
Stock Issued1
StockIssued1
|
0 | USD |
| CY2018 | us-gaap |
Stock Issued During Period Shares Stock Options Exercised
StockIssuedDuringPeriodSharesStockOptionsExercised
|
300000 | shares |
| CY2018 | us-gaap |
Stock Issued During Period Value Conversion Of Convertible Securities
StockIssuedDuringPeriodValueConversionOfConvertibleSecurities
|
0 | USD |
| CY2016 | us-gaap |
Stock Issued During Period Value Employee Benefit Plan
StockIssuedDuringPeriodValueEmployeeBenefitPlan
|
56000000 | USD |
| CY2017 | us-gaap |
Stock Issued During Period Value Employee Benefit Plan
StockIssuedDuringPeriodValueEmployeeBenefitPlan
|
56000000 | USD |
| CY2018 | us-gaap |
Stock Issued During Period Value Employee Benefit Plan
StockIssuedDuringPeriodValueEmployeeBenefitPlan
|
62000000 | USD |
| CY2016 | us-gaap |
Stock Issued During Period Value New Issues
StockIssuedDuringPeriodValueNewIssues
|
500000000 | USD |
| CY2018 | us-gaap |
Stock Issued During Period Value New Issues
StockIssuedDuringPeriodValueNewIssues
|
2462000000 | USD |
| CY2015Q4 | us-gaap |
Stockholders Equity
StockholdersEquity
|
12421000000 | USD |
| CY2016Q4 | us-gaap |
Stockholders Equity
StockholdersEquity
|
6241000000 | USD |
| CY2017Q4 | us-gaap |
Stockholders Equity
StockholdersEquity
|
3925000000 | USD |
| CY2018Q4 | us-gaap |
Stockholders Equity
StockholdersEquity
|
6814000000 | USD |
| CY2017Q4 | us-gaap |
Stockholders Equity Including Portion Attributable To Noncontrolling Interest
StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest
|
3925000000 | USD |
| CY2018Q4 | us-gaap |
Stockholders Equity Including Portion Attributable To Noncontrolling Interest
StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest
|
6814000000 | USD |
| CY2016 | us-gaap |
Taxes Excluding Income And Excise Taxes
TaxesExcludingIncomeAndExciseTaxes
|
913000000 | USD |
| CY2017 | us-gaap |
Taxes Excluding Income And Excise Taxes
TaxesExcludingIncomeAndExciseTaxes
|
940000000 | USD |
| CY2018 | us-gaap |
Taxes Excluding Income And Excise Taxes
TaxesExcludingIncomeAndExciseTaxes
|
993000000 | USD |
| CY2016 | us-gaap |
Taxes Other
TaxesOther
|
21000000 | USD |
| CY2017 | us-gaap |
Taxes Other
TaxesOther
|
20000000 | USD |
| CY2018 | us-gaap |
Taxes Other
TaxesOther
|
22000000 | USD |
| CY2016 | us-gaap |
Undistributed Continuing Operation Earnings Loss Allocation To Participating Securities Basic
UndistributedContinuingOperationEarningsLossAllocationToParticipatingSecuritiesBasic
|
0 | USD |
| CY2017 | us-gaap |
Undistributed Continuing Operation Earnings Loss Allocation To Participating Securities Basic
UndistributedContinuingOperationEarningsLossAllocationToParticipatingSecuritiesBasic
|
0 | USD |
| CY2018 | us-gaap |
Undistributed Continuing Operation Earnings Loss Allocation To Participating Securities Basic
UndistributedContinuingOperationEarningsLossAllocationToParticipatingSecuritiesBasic
|
0 | USD |
| CY2016 | us-gaap |
Undistributed Discontinued Operation Earnings Loss Allocation To Participating Securities Basic
UndistributedDiscontinuedOperationEarningsLossAllocationToParticipatingSecuritiesBasic
|
0 | USD |
| CY2017 | us-gaap |
Undistributed Discontinued Operation Earnings Loss Allocation To Participating Securities Basic
UndistributedDiscontinuedOperationEarningsLossAllocationToParticipatingSecuritiesBasic
|
0 | USD |
| CY2018 | us-gaap |
Undistributed Discontinued Operation Earnings Loss Allocation To Participating Securities Basic
UndistributedDiscontinuedOperationEarningsLossAllocationToParticipatingSecuritiesBasic
|
0 | USD |
| CY2017Q1 | us-gaap |
Undistributed Earnings Loss Allocated To Participating Securities Basic
UndistributedEarningsLossAllocatedToParticipatingSecuritiesBasic
|
0 | USD |
| CY2017Q2 | us-gaap |
Undistributed Earnings Loss Allocated To Participating Securities Basic
UndistributedEarningsLossAllocatedToParticipatingSecuritiesBasic
|
0 | USD |
| CY2017Q3 | us-gaap |
Undistributed Earnings Loss Allocated To Participating Securities Basic
UndistributedEarningsLossAllocatedToParticipatingSecuritiesBasic
|
0 | USD |
| CY2017Q4 | us-gaap |
Undistributed Earnings Loss Allocated To Participating Securities Basic
UndistributedEarningsLossAllocatedToParticipatingSecuritiesBasic
|
0 | USD |
| CY2018Q1 | us-gaap |
Undistributed Earnings Loss Allocated To Participating Securities Basic
UndistributedEarningsLossAllocatedToParticipatingSecuritiesBasic
|
156000000 | USD |
| CY2018Q2 | us-gaap |
Undistributed Earnings Loss Allocated To Participating Securities Basic
UndistributedEarningsLossAllocatedToParticipatingSecuritiesBasic
|
165000000 | USD |
| CY2018Q3 | us-gaap |
Undistributed Earnings Loss Allocated To Participating Securities Basic
UndistributedEarningsLossAllocatedToParticipatingSecuritiesBasic
|
54000000 | USD |
| CY2018Q4 | us-gaap |
Undistributed Earnings Loss Allocated To Participating Securities Basic
UndistributedEarningsLossAllocatedToParticipatingSecuritiesBasic
|
10000000 | USD |
| CY2016 | us-gaap |
Unrealized Gain Loss On Commodity Contracts
UnrealizedGainLossOnCommodityContracts
|
-9000000 | USD |
| CY2017 | us-gaap |
Unrealized Gain Loss On Commodity Contracts
UnrealizedGainLossOnCommodityContracts
|
-81000000 | USD |
| CY2018 | us-gaap |
Unrealized Gain Loss On Commodity Contracts
UnrealizedGainLossOnCommodityContracts
|
5000000 | USD |
| CY2015Q4 | us-gaap |
Unrecognized Tax Benefits
UnrecognizedTaxBenefits
|
26000000 | USD |
| CY2016Q4 | us-gaap |
Unrecognized Tax Benefits
UnrecognizedTaxBenefits
|
84000000 | USD |
| CY2017Q4 | us-gaap |
Unrecognized Tax Benefits
UnrecognizedTaxBenefits
|
80000000 | USD |
| CY2018Q4 | us-gaap |
Unrecognized Tax Benefits
UnrecognizedTaxBenefits
|
158000000 | USD |
| CY2016 | us-gaap |
Unrecognized Tax Benefits Decreases Resulting From Prior Period Tax Positions
UnrecognizedTaxBenefitsDecreasesResultingFromPriorPeriodTaxPositions
|
13000000 | USD |
| CY2018 | us-gaap |
Unrecognized Tax Benefits Decreases Resulting From Prior Period Tax Positions
UnrecognizedTaxBenefitsDecreasesResultingFromPriorPeriodTaxPositions
|
45000000 | USD |
| CY2016 | us-gaap |
Unrecognized Tax Benefits Increases Resulting From Current Period Tax Positions
UnrecognizedTaxBenefitsIncreasesResultingFromCurrentPeriodTaxPositions
|
2000000 | USD |
| CY2017 | us-gaap |
Unrecognized Tax Benefits Increases Resulting From Current Period Tax Positions
UnrecognizedTaxBenefitsIncreasesResultingFromCurrentPeriodTaxPositions
|
2000000 | USD |
| CY2018 | us-gaap |
Unrecognized Tax Benefits Increases Resulting From Current Period Tax Positions
UnrecognizedTaxBenefitsIncreasesResultingFromCurrentPeriodTaxPositions
|
125000000 | USD |
| CY2016 | us-gaap |
Unrecognized Tax Benefits Increases Resulting From Prior Period Tax Positions
UnrecognizedTaxBenefitsIncreasesResultingFromPriorPeriodTaxPositions
|
69000000 | USD |
| CY2017 | us-gaap |
Unrecognized Tax Benefits Reductions Resulting From Lapse Of Applicable Statute Of Limitations
UnrecognizedTaxBenefitsReductionsResultingFromLapseOfApplicableStatuteOfLimitations
|
6000000 | USD |
| CY2018 | us-gaap |
Unrecognized Tax Benefits Reductions Resulting From Lapse Of Applicable Statute Of Limitations
UnrecognizedTaxBenefitsReductionsResultingFromLapseOfApplicableStatuteOfLimitations
|
2000000 | USD |
| CY2018Q4 | us-gaap |
Unrecognized Tax Benefits That Would Impact Effective Tax Rate
UnrecognizedTaxBenefitsThatWouldImpactEffectiveTaxRate
|
2000000 | USD |
| CY2016 | us-gaap |
Utilities Operating Expense Impairments
UtilitiesOperatingExpenseImpairments
|
43000000 | USD |
| CY2017Q1 | us-gaap |
Utilities Operating Expense Impairments
UtilitiesOperatingExpenseImpairments
|
0 | USD |
| CY2017Q2 | us-gaap |
Utilities Operating Expense Impairments
UtilitiesOperatingExpenseImpairments
|
0 | USD |
| CY2017Q3 | us-gaap |
Utilities Operating Expense Impairments
UtilitiesOperatingExpenseImpairments
|
13000000 | USD |
| CY2017Q4 | us-gaap |
Utilities Operating Expense Impairments
UtilitiesOperatingExpenseImpairments
|
28000000 | USD |
| CY2017 | us-gaap |
Utilities Operating Expense Impairments
UtilitiesOperatingExpenseImpairments
|
41000000 | USD |
| CY2018Q1 | us-gaap |
Utilities Operating Expense Impairments
UtilitiesOperatingExpenseImpairments
|
0 | USD |
| CY2018Q2 | us-gaap |
Utilities Operating Expense Impairments
UtilitiesOperatingExpenseImpairments
|
0 | USD |
| CY2018Q3 | us-gaap |
Utilities Operating Expense Impairments
UtilitiesOperatingExpenseImpairments
|
0 | USD |
| CY2018Q4 | us-gaap |
Utilities Operating Expense Impairments
UtilitiesOperatingExpenseImpairments
|
0 | USD |
| CY2018 | us-gaap |
Utilities Operating Expense Impairments
UtilitiesOperatingExpenseImpairments
|
0 | USD |
| CY2016 | us-gaap |
Utilities Operating Expense Taxes
UtilitiesOperatingExpenseTaxes
|
913000000 | USD |
| CY2017 | us-gaap |
Utilities Operating Expense Taxes
UtilitiesOperatingExpenseTaxes
|
940000000 | USD |
| CY2018 | us-gaap |
Utilities Operating Expense Taxes
UtilitiesOperatingExpenseTaxes
|
993000000 | USD |
| CY2016 | us-gaap |
Weighted Average Number Of Diluted Shares Outstanding
WeightedAverageNumberOfDilutedSharesOutstanding
|
426000000 | shares |
| CY2017 | us-gaap |
Weighted Average Number Of Diluted Shares Outstanding
WeightedAverageNumberOfDilutedSharesOutstanding
|
444000000 | shares |
| CY2018 | us-gaap |
Weighted Average Number Of Diluted Shares Outstanding
WeightedAverageNumberOfDilutedSharesOutstanding
|
494000000 | shares |
| CY2016 | us-gaap |
Weighted Average Number Of Shares Outstanding Basic
WeightedAverageNumberOfSharesOutstandingBasic
|
426000000 | shares |
| CY2017 | us-gaap |
Weighted Average Number Of Shares Outstanding Basic
WeightedAverageNumberOfSharesOutstandingBasic
|
444000000 | shares |
| CY2018 | us-gaap |
Weighted Average Number Of Shares Outstanding Basic
WeightedAverageNumberOfSharesOutstandingBasic
|
492000000 | shares |
| CY2018 | us-gaap |
Use Of Estimates
UseOfEstimates
|
<div style="font-family:Times New Roman;font-size:10pt;"><div style="line-height:120%;text-align:justify;font-size:9pt;"><font style="font-family:Arial;font-size:9pt;">FE and its subsidiaries follow GAAP and comply with the related regulations, orders, policies and practices prescribed by the SEC, FERC, and, as applicable, the NRC, the PUCO, the PPUC, the MDPSC, the NYPSC, the WVPSC, the VSCC and the NJBPU. The preparation of financial statements in conformity with GAAP requires management to make periodic estimates and assumptions that affect the reported amounts of assets, liabilities, revenues and expenses and disclosure of contingent assets and liabilities. Actual results could differ from these estimates. The reported results of operations are not necessarily indicative of results of operations for any future period. FE and its subsidiaries have evaluated events and transactions for potential recognition or disclosure through the date the financial statements were issued.</font></div></div> |
