2017 Form 10-K Financial Statement
#000104786218000037 Filed on February 15, 2018
Income Statement
Concept | 2017 | 2016 Q4 | 2016 |
---|---|---|---|
Revenue | $12.03B | $2.707B | $12.08B |
YoY Change | -0.35% | 0.0% | -3.82% |
Cost Of Revenue | $2.409B | $549.0M | $2.916B |
YoY Change | -17.39% | -15.41% | -15.92% |
Gross Profit | $9.624B | $2.158B | $9.159B |
YoY Change | 5.08% | 4.86% | 0.8% |
Gross Profit Margin | 79.98% | 79.72% | 75.85% |
Selling, General & Admin | |||
YoY Change | |||
% of Gross Profit | |||
Research & Development | $24.00M | $24.00M | |
YoY Change | 0.0% | 4.35% | |
% of Gross Profit | 0.25% | 0.26% | |
Depreciation & Amortization | $1.341B | $311.0M | $1.216B |
YoY Change | 10.28% | 7.24% | 7.61% |
% of Gross Profit | 13.93% | 14.41% | 13.28% |
Operating Expenses | $9.260B | $1.475B | $9.399B |
YoY Change | -1.48% | -11.09% | -7.19% |
Operating Profit | $2.774B | $683.0M | $2.780B |
YoY Change | -0.22% | 71.18% | 14.54% |
Interest Expense | $729.0M | -$167.0M | -$597.0M |
YoY Change | -222.11% | 5.7% | 0.51% |
% of Operating Profit | 26.28% | -24.45% | -21.47% |
Other Income/Expense, Net | -$48.00M | -$214.0M | -$141.0M |
YoY Change | -65.96% | 2575.0% | -687.5% |
Pretax Income | $1.997B | $302.0M | $1.943B |
YoY Change | 2.78% | 29.61% | 8.06% |
Income Tax | $472.0M | $96.00M | $698.0M |
% Of Pretax Income | 23.64% | 31.79% | 35.92% |
Net Earnings | $1.525B | $206.0M | $1.245B |
YoY Change | 22.49% | 17.05% | 4.36% |
Net Earnings / Revenue | 12.67% | 7.61% | 10.31% |
Basic Earnings Per Share | $4.97 | $4.15 | |
Diluted Earnings Per Share | $4.94 | $673.0K | $4.12 |
COMMON SHARES | |||
Basic Shares Outstanding | 307.1M shares | 304.7M shares | 300.4M shares |
Diluted Shares Outstanding | 308.8M shares | 301.9M shares |
Balance Sheet
Concept | 2017 | 2016 Q4 | 2016 |
---|---|---|---|
SHORT-TERM ASSETS | |||
Cash & Short-Term Investments | $797.0M | $776.0M | $776.0M |
YoY Change | 2.71% | -18.06% | -18.06% |
Cash & Equivalents | $797.0M | $776.0M | $776.0M |
Short-Term Investments | |||
Other Short-Term Assets | $1.079B | $151.0M | $911.0M |
YoY Change | 18.44% | -22.16% | -10.42% |
Inventory | $334.0M | $339.0M | $339.0M |
Prepaid Expenses | $159.0M | ||
Receivables | $1.103B | $1.106B | $1.106B |
Other Receivables | $224.0M | $274.0M | $274.0M |
Total Short-Term Assets | $3.537B | $3.406B | $3.406B |
YoY Change | 3.85% | -11.21% | -11.21% |
LONG-TERM ASSETS | |||
Property, Plant & Equipment | $37.60B | $35.22B | $35.22B |
YoY Change | 6.77% | 9.34% | 9.34% |
Goodwill | $428.0M | ||
YoY Change | -0.23% | ||
Intangibles | $124.0M | ||
YoY Change | 6100.0% | ||
Long-Term Investments | $1.598B | $488.0M | $1.588B |
YoY Change | 0.63% | -14.98% | 79.64% |
Other Assets | $4.817B | $7.712B | $7.493B |
YoY Change | -35.71% | -11.49% | -9.53% |
Total Long-Term Assets | $44.57B | $44.85B | $44.85B |
YoY Change | -0.61% | 7.28% | 7.28% |
TOTAL ASSETS | |||
Total Short-Term Assets | $3.537B | $3.406B | $3.406B |
Total Long-Term Assets | $44.57B | $44.85B | $44.85B |
Total Assets | $48.11B | $48.26B | $48.26B |
YoY Change | -0.3% | 5.72% | 5.72% |
SHORT-TERM LIABILITIES | |||
YoY Change | |||
Accounts Payable | $1.286B | $1.147B | $1.147B |
YoY Change | 12.12% | 13.79% | 13.79% |
Accrued Expenses | $248.0M | $251.0M | $251.0M |
YoY Change | -1.2% | 7.73% | 7.73% |
Deferred Revenue | |||
YoY Change | |||
Short-Term Debt | $577.0M | $1.054B | $1.054B |
YoY Change | -45.26% | -31.07% | -31.07% |
Long-Term Debt Due | $1.298B | $39.00M | $39.00M |
YoY Change | 3228.21% | -94.72% | -94.72% |
Total Short-Term Liabilities | $4.902B | $3.843B | $3.843B |
YoY Change | 27.56% | -18.58% | -18.58% |
LONG-TERM LIABILITIES | |||
Long-Term Debt | $14.73B | $14.74B | $14.74B |
YoY Change | -0.03% | 22.73% | 22.73% |
Other Long-Term Liabilities | $7.558B | $5.166B | $5.166B |
YoY Change | 46.3% | -18.23% | -18.23% |
Total Long-Term Liabilities | $22.29B | $15.37B | $19.90B |
YoY Change | 12.0% | -3.05% | 8.61% |
TOTAL LIABILITIES | |||
Total Short-Term Liabilities | $4.902B | $3.843B | $3.843B |
Total Long-Term Liabilities | $22.29B | $15.37B | $19.90B |
Total Liabilities | $32.69B | $19.21B | $33.96B |
YoY Change | -3.72% | -6.61% | 4.19% |
SHAREHOLDERS EQUITY | |||
Retained Earnings | |||
YoY Change | |||
Common Stock | |||
YoY Change | |||
Preferred Stock | |||
YoY Change | |||
Treasury Stock (at cost) | |||
YoY Change | |||
Treasury Stock Shares | |||
Shareholders Equity | $15.42B | $14.30B | $14.30B |
YoY Change | |||
Total Liabilities & Shareholders Equity | $48.11B | $48.26B | $48.26B |
YoY Change | -0.3% | 5.72% | 5.72% |
Cashflow Statement
Concept | 2017 | 2016 Q4 | 2016 |
---|---|---|---|
OPERATING ACTIVITIES | |||
Net Income | $1.525B | $206.0M | $1.245B |
YoY Change | 22.49% | 17.05% | 4.36% |
Depreciation, Depletion And Amortization | $1.341B | $311.0M | $1.216B |
YoY Change | 10.28% | 7.24% | 7.61% |
Cash From Operating Activities | $3.367B | $1.127B | $3.459B |
YoY Change | -2.66% | 4.55% | 5.55% |
INVESTING ACTIVITIES | |||
Capital Expenditures | $3.606B | -$1.375B | $5.235B |
YoY Change | -31.12% | 59.33% | 964.02% |
Acquisitions | $0.00 | $0.00 | |
YoY Change | |||
Other Investing Activities | -$37.00M | $142.0M | -$31.00M |
YoY Change | 19.35% | -232.71% | -143.06% |
Cash From Investing Activities | -$3.710B | -$1.233B | -$4.950B |
YoY Change | -25.05% | 27.11% | 35.36% |
FINANCING ACTIVITIES | |||
Cash Dividend Paid | |||
YoY Change | |||
Common Stock Issuance & Retirement, Net | $343.0M | $702.0M | |
YoY Change | -51.14% | -70300.0% | |
Debt Paid & Issued, Net | $434.0M | $735.0M | |
YoY Change | -40.95% | 47.0% | |
Cash From Financing Activities | $357.0M | 762.0M | $1.345B |
YoY Change | -73.46% | 2.01% | 113.83% |
NET CHANGE | |||
Cash From Operating Activities | $3.367B | 1.127B | $3.459B |
Cash From Investing Activities | -$3.710B | -1.233B | -$4.950B |
Cash From Financing Activities | $357.0M | 762.0M | $1.345B |
Net Change In Cash | $14.00M | 656.0M | -$146.0M |
YoY Change | -109.59% | -23.27% | -158.63% |
FREE CASH FLOW | |||
Cash From Operating Activities | $3.367B | $1.127B | $3.459B |
Capital Expenditures | $3.606B | -$1.375B | $5.235B |
Free Cash Flow | -$239.0M | $2.502B | -$1.776B |
YoY Change | -86.54% | 28.9% | -163.77% |
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CY2015 | ed |
Stock Issued During Period Value Dividend Reinvestment And Employee Stock Purchase Plan Netof Repurchases
StockIssuedDuringPeriodValueDividendReinvestmentAndEmployeeStockPurchasePlanNetofRepurchases
|
33000000 | USD |
CY2016Q4 | ed |
Supplemental Retirement Income Plan Assets
SupplementalRetirementIncomePlanAssets
|
273000000 | USD |
CY2017Q4 | ed |
Supplemental Retirement Income Plan Assets
SupplementalRetirementIncomePlanAssets
|
330000000 | USD |
CY2016Q4 | ed |
System Benefits Charge Liability Current
SystemBenefitsChargeLiabilityCurrent
|
434000000 | USD |
CY2017Q4 | ed |
System Benefits Charge Liability Current
SystemBenefitsChargeLiabilityCurrent
|
535000000 | USD |
CY2017 | ed |
Tax Cuts And Jobs Act Of2017 Change In Tax Rate Deferred Income Tax Liabilities Net Income Tax Expense Benefit
TaxCutsAndJobsActOf2017ChangeInTaxRateDeferredIncomeTaxLiabilitiesNetIncomeTaxExpenseBenefit
|
5312000000 | USD |
CY2017 | ed |
Tax Cutsand Jobs Actof2017 Changein Tax Rate Income Tax Expense Benefit
TaxCutsandJobsActof2017ChangeinTaxRateIncomeTaxExpenseBenefit
|
259000000 | USD |
CY2017 | ed |
Tax Cutsand Jobs Actof2017 Income Tax Expense Benefit
TaxCutsandJobsActof2017IncomeTaxExpenseBenefit
|
259000000 | USD |
CY2017Q4 | ed |
Unrecognized Tax Benefitsthat Would Impact Effective Tax Rate Netof Taxes
UnrecognizedTaxBenefitsthatWouldImpactEffectiveTaxRateNetofTaxes
|
11000000 | USD |
CY2016 | ed |
Weighted Average Interest Rate Of Commercial Paper
WeightedAverageInterestRateOfCommercialPaper
|
0.010 | |
CY2017 | ed |
Weighted Average Interest Rate Of Commercial Paper
WeightedAverageInterestRateOfCommercialPaper
|
0.018 | |
CY2016Q4 | us-gaap |
Accounts Payable Current
AccountsPayableCurrent
|
1147000000 | USD |
CY2017Q4 | us-gaap |
Accounts Payable Current
AccountsPayableCurrent
|
1286000000 | USD |
CY2016Q4 | us-gaap |
Accounts Receivable Net Current
AccountsReceivableNetCurrent
|
1106000000 | USD |
CY2017Q4 | us-gaap |
Accounts Receivable Net Current
AccountsReceivableNetCurrent
|
1103000000 | USD |
CY2016Q4 | us-gaap |
Accrued Environmental Loss Contingencies Noncurrent
AccruedEnvironmentalLossContingenciesNoncurrent
|
753000000 | USD |
CY2017Q4 | us-gaap |
Accrued Environmental Loss Contingencies Noncurrent
AccruedEnvironmentalLossContingenciesNoncurrent
|
737000000 | USD |
CY2016Q4 | us-gaap |
Accumulated Depreciation Depletion And Amortization Property Plant And Equipment
AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment
|
140000000 | USD |
CY2017Q4 | us-gaap |
Accumulated Depreciation Depletion And Amortization Property Plant And Equipment
AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment
|
201000000 | USD |
CY2016Q4 | us-gaap |
Accumulated Other Comprehensive Income Loss Defined Benefit Pension And Other Postretirement Plans Net Of Tax
AccumulatedOtherComprehensiveIncomeLossDefinedBenefitPensionAndOtherPostretirementPlansNetOfTax
|
24000000 | USD |
CY2017Q4 | us-gaap |
Accumulated Other Comprehensive Income Loss Defined Benefit Pension And Other Postretirement Plans Net Of Tax
AccumulatedOtherComprehensiveIncomeLossDefinedBenefitPensionAndOtherPostretirementPlansNetOfTax
|
23000000 | USD |
CY2016Q4 | us-gaap |
Accumulated Other Comprehensive Income Loss Net Of Tax
AccumulatedOtherComprehensiveIncomeLossNetOfTax
|
-27000000 | USD |
CY2017Q4 | us-gaap |
Accumulated Other Comprehensive Income Loss Net Of Tax
AccumulatedOtherComprehensiveIncomeLossNetOfTax
|
-26000000 | USD |
CY2015 | us-gaap |
Adjustment For Amortization
AdjustmentForAmortization
|
-52000000 | USD |
CY2016 | us-gaap |
Adjustment For Amortization
AdjustmentForAmortization
|
-210000000 | USD |
CY2017 | us-gaap |
Adjustment For Amortization
AdjustmentForAmortization
|
-124000000 | USD |
CY2015 | us-gaap |
Allocated Share Based Compensation Expense
AllocatedShareBasedCompensationExpense
|
34000000 | USD |
CY2016 | us-gaap |
Allocated Share Based Compensation Expense
AllocatedShareBasedCompensationExpense
|
50000000 | USD |
CY2017 | us-gaap |
Allocated Share Based Compensation Expense
AllocatedShareBasedCompensationExpense
|
63000000 | USD |
CY2016Q4 | us-gaap |
Allowance For Doubtful Accounts Receivable Current
AllowanceForDoubtfulAccountsReceivableCurrent
|
69000000 | USD |
CY2017Q4 | us-gaap |
Allowance For Doubtful Accounts Receivable Current
AllowanceForDoubtfulAccountsReceivableCurrent
|
63000000 | USD |
CY2016Q4 | us-gaap |
Allowance For Doubtful Other Receivables Current
AllowanceForDoubtfulOtherReceivablesCurrent
|
14000000 | USD |
CY2017Q4 | us-gaap |
Allowance For Doubtful Other Receivables Current
AllowanceForDoubtfulOtherReceivablesCurrent
|
8000000 | USD |
CY2015 | us-gaap |
Amortization Of Intangible Assets
AmortizationOfIntangibleAssets
|
0 | USD |
CY2016 | us-gaap |
Amortization Of Intangible Assets
AmortizationOfIntangibleAssets
|
2000000 | USD |
CY2017 | us-gaap |
Amortization Of Intangible Assets
AmortizationOfIntangibleAssets
|
9000000 | USD |
CY2017 | us-gaap |
Asset Retirement Obligation Accretion Expense
AssetRetirementObligationAccretionExpense
|
10000000 | USD |
CY2017 | us-gaap |
Asset Retirement Obligation Liabilities Settled
AssetRetirementObligationLiabilitiesSettled
|
40000000 | USD |
CY2016 | us-gaap |
Asset Retirement Obligation Period Increase Decrease
AssetRetirementObligationPeriodIncreaseDecrease
|
-37000000 | USD |
CY2017 | us-gaap |
Asset Retirement Obligation Period Increase Decrease
AssetRetirementObligationPeriodIncreaseDecrease
|
-36000000 | USD |
CY2017Q4 | us-gaap |
Contractual Obligation Due In Fourth Year
ContractualObligationDueInFourthYear
|
65000000 | USD |
CY2017Q4 | us-gaap |
Contractual Obligation Due In Next Twelve Months
ContractualObligationDueInNextTwelveMonths
|
257000000 | USD |
CY2017 | us-gaap |
Asset Retirement Obligation Revision Of Estimate
AssetRetirementObligationRevisionOfEstimate
|
98000000 | USD |
CY2016Q4 | us-gaap |
Asset Retirement Obligations Noncurrent
AssetRetirementObligationsNoncurrent
|
246000000 | USD |
CY2017Q4 | us-gaap |
Asset Retirement Obligations Noncurrent
AssetRetirementObligationsNoncurrent
|
314000000 | USD |
CY2015Q4 | us-gaap |
Assets
Assets
|
45642000000 | USD |
CY2016Q4 | us-gaap |
Assets
Assets
|
48255000000 | USD |
CY2017Q4 | us-gaap |
Assets
Assets
|
48111000000 | USD |
CY2016Q4 | us-gaap |
Assets Current
AssetsCurrent
|
3406000000 | USD |
CY2017Q4 | us-gaap |
Assets Current
AssetsCurrent
|
3537000000 | USD |
CY2016Q4 | us-gaap |
Billings In Excess Of Cost
BillingsInExcessOfCost
|
2000000 | USD |
CY2017Q4 | us-gaap |
Billings In Excess Of Cost
BillingsInExcessOfCost
|
87000000 | USD |
CY2016Q4 | us-gaap |
Capitalization Longterm Debt And Equity
CapitalizationLongtermDebtAndEquity
|
29033000000 | USD |
CY2017Q4 | us-gaap |
Capitalization Longterm Debt And Equity
CapitalizationLongtermDebtAndEquity
|
30149000000 | USD |
CY2014Q4 | us-gaap |
Cash And Cash Equivalents At Carrying Value
CashAndCashEquivalentsAtCarryingValue
|
699000000 | USD |
CY2015Q4 | us-gaap |
Cash And Cash Equivalents At Carrying Value
CashAndCashEquivalentsAtCarryingValue
|
944000000 | USD |
CY2016Q4 | us-gaap |
Cash And Cash Equivalents At Carrying Value
CashAndCashEquivalentsAtCarryingValue
|
776000000 | USD |
CY2017Q4 | us-gaap |
Cash And Cash Equivalents At Carrying Value
CashAndCashEquivalentsAtCarryingValue
|
797000000 | USD |
CY2015Q4 | us-gaap |
Cash And Cash Equivalents At Carrying Value Including Discontinued Operations
CashAndCashEquivalentsAtCarryingValueIncludingDiscontinuedOperations
|
948000000 | USD |
CY2016Q4 | us-gaap |
Cash And Cash Equivalents At Carrying Value Including Discontinued Operations
CashAndCashEquivalentsAtCarryingValueIncludingDiscontinuedOperations
|
772000000 | USD |
CY2017Q4 | us-gaap |
Cash And Cash Equivalents At Carrying Value Including Discontinued Operations
CashAndCashEquivalentsAtCarryingValueIncludingDiscontinuedOperations
|
797000000 | USD |
CY2015 | us-gaap |
Cash And Cash Equivalents Period Increase Decrease
CashAndCashEquivalentsPeriodIncreaseDecrease
|
249000000 | USD |
CY2016 | us-gaap |
Cash And Cash Equivalents Period Increase Decrease
CashAndCashEquivalentsPeriodIncreaseDecrease
|
-172000000 | USD |
CY2017 | us-gaap |
Cash And Cash Equivalents Period Increase Decrease
CashAndCashEquivalentsPeriodIncreaseDecrease
|
21000000 | USD |
CY2015 | us-gaap |
Cash Flows Between Transferee And Transferor Proceeds From New Transfers
CashFlowsBetweenTransfereeAndTransferorProceedsFromNewTransfers
|
0 | USD |
CY2016 | us-gaap |
Cash Flows Between Transferee And Transferor Proceeds From New Transfers
CashFlowsBetweenTransfereeAndTransferorProceedsFromNewTransfers
|
122000000 | USD |
CY2017 | us-gaap |
Cash Flows Between Transferee And Transferor Proceeds From New Transfers
CashFlowsBetweenTransfereeAndTransferorProceedsFromNewTransfers
|
0 | USD |
CY2017Q4 | us-gaap |
Collateral Already Posted Aggregate Fair Value
CollateralAlreadyPostedAggregateFairValue
|
68000000 | USD |
CY2016Q4 | us-gaap |
Commercial Paper
CommercialPaper
|
1054000000 | USD |
CY2017Q4 | us-gaap |
Commercial Paper
CommercialPaper
|
577000000 | USD |
CY2015 | us-gaap |
Common Stock Dividends Per Share Declared
CommonStockDividendsPerShareDeclared
|
2.60 | |
CY2016 | us-gaap |
Common Stock Dividends Per Share Declared
CommonStockDividendsPerShareDeclared
|
2.68 | |
CY2017 | us-gaap |
Common Stock Dividends Per Share Declared
CommonStockDividendsPerShareDeclared
|
2.76 | |
CY2015 | us-gaap |
Comprehensive Income Net Of Tax
ComprehensiveIncomeNetOfTax
|
1204000000 | USD |
CY2016 | us-gaap |
Comprehensive Income Net Of Tax
ComprehensiveIncomeNetOfTax
|
1252000000 | USD |
CY2017 | us-gaap |
Comprehensive Income Net Of Tax
ComprehensiveIncomeNetOfTax
|
1526000000 | USD |
CY2015 | us-gaap |
Construction And Development Costs
ConstructionAndDevelopmentCosts
|
3418000000 | USD |
CY2016 | us-gaap |
Construction And Development Costs
ConstructionAndDevelopmentCosts
|
5235000000 | USD |
CY2017 | us-gaap |
Construction And Development Costs
ConstructionAndDevelopmentCosts
|
3606000000 | USD |
CY2015 | us-gaap |
Construction In Progress Expenditures Incurred But Not Yet Paid
ConstructionInProgressExpendituresIncurredButNotYetPaid
|
279000000 | USD |
CY2016 | us-gaap |
Construction In Progress Expenditures Incurred But Not Yet Paid
ConstructionInProgressExpendituresIncurredButNotYetPaid
|
388000000 | USD |
CY2017 | us-gaap |
Construction In Progress Expenditures Incurred But Not Yet Paid
ConstructionInProgressExpendituresIncurredButNotYetPaid
|
432000000 | USD |
CY2016Q4 | us-gaap |
Construction In Progress Gross
ConstructionInProgressGross
|
689000000 | USD |
CY2017Q4 | us-gaap |
Construction In Progress Gross
ConstructionInProgressGross
|
551000000 | USD |
CY2017Q4 | us-gaap |
Contractual Obligation Due After Fifth Year
ContractualObligationDueAfterFifthYear
|
656000000 | USD |
CY2017Q4 | us-gaap |
Contractual Obligation Due In Fifth Year
ContractualObligationDueInFifthYear
|
54000000 | USD |
CY2017Q4 | us-gaap |
Contractual Obligation Due In Second Year
ContractualObligationDueInSecondYear
|
202000000 | USD |
CY2017Q4 | us-gaap |
Contractual Obligation Due In Third Year
ContractualObligationDueInThirdYear
|
114000000 | USD |
CY2015 | us-gaap |
Cost Of Purchased Oil And Gas
CostOfPurchasedOilAndGas
|
495000000 | USD |
CY2016 | us-gaap |
Cost Of Purchased Oil And Gas
CostOfPurchasedOilAndGas
|
477000000 | USD |
CY2017 | us-gaap |
Cost Of Purchased Oil And Gas
CostOfPurchasedOilAndGas
|
808000000 | USD |
CY2015 | us-gaap |
Cost Of Purchased Power
CostOfPurchasedPower
|
2973000000 | USD |
CY2016 | us-gaap |
Cost Of Purchased Power
CostOfPurchasedPower
|
2439000000 | USD |
CY2017 | us-gaap |
Cost Of Purchased Power
CostOfPurchasedPower
|
1601000000 | USD |
CY2016Q4 | us-gaap |
Costs In Excess Of Billings On Uncompleted Contracts Or Programs Expected To Be Collected Within One Year
CostsInExcessOfBillingsOnUncompletedContractsOrProgramsExpectedToBeCollectedWithinOneYear
|
447000000 | USD |
CY2017Q4 | us-gaap |
Costs In Excess Of Billings On Uncompleted Contracts Or Programs Expected To Be Collected Within One Year
CostsInExcessOfBillingsOnUncompletedContractsOrProgramsExpectedToBeCollectedWithinOneYear
|
598000000 | USD |
CY2017Q4 | us-gaap |
Credit Derivative Maximum Exposure Undiscounted
CreditDerivativeMaximumExposureUndiscounted
|
103000000 | USD |
CY2017Q4 | us-gaap |
Credit Risk Derivatives At Fair Value Net
CreditRiskDerivativesAtFairValueNet
|
39000000 | USD |
CY2015 | us-gaap |
Current Federal Tax Expense Benefit
CurrentFederalTaxExpenseBenefit
|
-86000000 | USD |
CY2016 | us-gaap |
Current Federal Tax Expense Benefit
CurrentFederalTaxExpenseBenefit
|
-43000000 | USD |
CY2017 | us-gaap |
Current Federal Tax Expense Benefit
CurrentFederalTaxExpenseBenefit
|
-11000000 | USD |
CY2015 | us-gaap |
Current State And Local Tax Expense Benefit
CurrentStateAndLocalTaxExpenseBenefit
|
38000000 | USD |
CY2016 | us-gaap |
Current State And Local Tax Expense Benefit
CurrentStateAndLocalTaxExpenseBenefit
|
-42000000 | USD |
CY2017 | us-gaap |
Current State And Local Tax Expense Benefit
CurrentStateAndLocalTaxExpenseBenefit
|
-2000000 | USD |
CY2016Q4 | us-gaap |
Customer Deposits Current
CustomerDepositsCurrent
|
352000000 | USD |
CY2017Q4 | us-gaap |
Customer Deposits Current
CustomerDepositsCurrent
|
346000000 | USD |
CY2016Q4 | us-gaap |
Debt Instrument Unamortized Discount
DebtInstrumentUnamortizedDiscount
|
27000000 | USD |
CY2017Q4 | us-gaap |
Debt Instrument Unamortized Discount
DebtInstrumentUnamortizedDiscount
|
29000000 | USD |
CY2016Q4 | us-gaap |
Deferred Compensation Plan Assets
DeferredCompensationPlanAssets
|
60000000 | USD |
CY2017Q4 | us-gaap |
Deferred Compensation Plan Assets
DeferredCompensationPlanAssets
|
73000000 | USD |
CY2015 | us-gaap |
Deferred Federal Income Tax Expense Benefit
DeferredFederalIncomeTaxExpenseBenefit
|
569000000 | USD |
CY2016 | us-gaap |
Deferred Federal Income Tax Expense Benefit
DeferredFederalIncomeTaxExpenseBenefit
|
604000000 | USD |
CY2017 | us-gaap |
Deferred Federal Income Tax Expense Benefit
DeferredFederalIncomeTaxExpenseBenefit
|
391000000 | USD |
CY2016Q4 | us-gaap |
Deferred Finance Costs Net
DeferredFinanceCostsNet
|
107000000 | USD |
CY2017Q4 | us-gaap |
Deferred Finance Costs Net
DeferredFinanceCostsNet
|
113000000 | USD |
CY2015 | us-gaap |
Deferred Income Tax Expense Benefit
DeferredIncomeTaxExpenseBenefit
|
653000000 | USD |
CY2016 | us-gaap |
Deferred Income Tax Expense Benefit
DeferredIncomeTaxExpenseBenefit
|
783000000 | USD |
CY2017 | us-gaap |
Deferred Income Tax Expense Benefit
DeferredIncomeTaxExpenseBenefit
|
485000000 | USD |
CY2016Q4 | us-gaap |
Deferred Income Tax Liabilities
DeferredIncomeTaxLiabilities
|
12684000000 | USD |
CY2017Q4 | us-gaap |
Deferred Income Tax Liabilities
DeferredIncomeTaxLiabilities
|
8014000000 | USD |
CY2015 | us-gaap |
Deferred State And Local Income Tax Expense Benefit
DeferredStateAndLocalIncomeTaxExpenseBenefit
|
93000000 | USD |
CY2016 | us-gaap |
Deferred State And Local Income Tax Expense Benefit
DeferredStateAndLocalIncomeTaxExpenseBenefit
|
188000000 | USD |
CY2017 | us-gaap |
Deferred State And Local Income Tax Expense Benefit
DeferredStateAndLocalIncomeTaxExpenseBenefit
|
103000000 | USD |
CY2015Q4 | us-gaap |
Deferred Tax Assets Charitable Contribution Carryforwards
DeferredTaxAssetsCharitableContributionCarryforwards
|
5000000 | USD |
CY2016Q4 | us-gaap |
Deferred Tax Assets Charitable Contribution Carryforwards
DeferredTaxAssetsCharitableContributionCarryforwards
|
5000000 | USD |
CY2017Q4 | us-gaap |
Deferred Tax Assets Charitable Contribution Carryforwards
DeferredTaxAssetsCharitableContributionCarryforwards
|
4000000 | USD |
CY2016Q4 | us-gaap |
Deferred Tax Assets Net
DeferredTaxAssetsNet
|
2650000000 | USD |
CY2017Q4 | us-gaap |
Deferred Tax Assets Net
DeferredTaxAssetsNet
|
2676000000 | USD |
CY2016Q4 | us-gaap |
Deferred Tax Assets Operating Loss Carryforwards
DeferredTaxAssetsOperatingLossCarryforwards
|
59000000 | USD |
CY2017Q4 | us-gaap |
Deferred Tax Assets Operating Loss Carryforwards
DeferredTaxAssetsOperatingLossCarryforwards
|
95000000 | USD |
CY2016Q4 | us-gaap |
Deferred Tax Assets Other
DeferredTaxAssetsOther
|
303000000 | USD |
CY2017Q4 | us-gaap |
Deferred Tax Assets Other
DeferredTaxAssetsOther
|
112000000 | USD |
CY2016Q4 | us-gaap |
Deferred Tax Assets Tax Credit Carryforwards
DeferredTaxAssetsTaxCreditCarryforwards
|
498000000 | USD |
CY2017Q4 | us-gaap |
Deferred Tax Assets Tax Credit Carryforwards
DeferredTaxAssetsTaxCreditCarryforwards
|
658000000 | USD |
CY2016Q4 | us-gaap |
Deferred Tax Assets Valuation Allowance
DeferredTaxAssetsValuationAllowance
|
16000000 | USD |
CY2017Q4 | us-gaap |
Deferred Tax Assets Valuation Allowance
DeferredTaxAssetsValuationAllowance
|
33000000 | USD |
CY2016Q4 | us-gaap |
Deferred Tax Liabilities
DeferredTaxLiabilities
|
10205000000 | USD |
CY2017Q4 | us-gaap |
Deferred Tax Liabilities
DeferredTaxLiabilities
|
5495000000 | USD |
CY2016Q4 | us-gaap |
Deferred Tax Liabilities Investment In Noncontrolled Affiliates
DeferredTaxLiabilitiesInvestmentInNoncontrolledAffiliates
|
171000000 | USD |
CY2017Q4 | us-gaap |
Deferred Tax Liabilities Investment In Noncontrolled Affiliates
DeferredTaxLiabilitiesInvestmentInNoncontrolledAffiliates
|
157000000 | USD |
CY2016Q4 | us-gaap |
Deferred Tax Liabilities Property Plant And Equipment
DeferredTaxLiabilitiesPropertyPlantAndEquipment
|
9446000000 | USD |
CY2017Q4 | us-gaap |
Deferred Tax Liabilities Property Plant And Equipment
DeferredTaxLiabilitiesPropertyPlantAndEquipment
|
6555000000 | USD |
CY2017Q4 | us-gaap |
Defined Benefit Pension Plan Current And Noncurrent Liabilities
DefinedBenefitPensionPlanCurrentAndNoncurrentLiabilities
|
361000000 | USD |
CY2016Q4 | us-gaap |
Defined Benefit Plan Fair Value Of Plan Assets
DefinedBenefitPlanFairValueOfPlanAssets
|
273000000 | USD |
CY2017Q4 | us-gaap |
Defined Benefit Plan Fair Value Of Plan Assets
DefinedBenefitPlanFairValueOfPlanAssets
|
330000000 | USD |
CY2015 | us-gaap |
Depreciation And Amortization
DepreciationAndAmortization
|
1130000000 | USD |
CY2016 | us-gaap |
Depreciation And Amortization
DepreciationAndAmortization
|
1216000000 | USD |
CY2017 | us-gaap |
Depreciation And Amortization
DepreciationAndAmortization
|
1341000000 | USD |
CY2016Q4 | us-gaap |
Derivative Assets
DerivativeAssets
|
363000000 | USD |
CY2017Q4 | us-gaap |
Derivative Assets
DerivativeAssets
|
453000000 | USD |
CY2016Q4 | us-gaap |
Derivative Fair Value Of Derivative Net
DerivativeFairValueOfDerivativeNet
|
-93000000 | USD |
CY2017Q4 | us-gaap |
Derivative Fair Value Of Derivative Net
DerivativeFairValueOfDerivativeNet
|
-17000000 | USD |
CY2016 | us-gaap |
Derivative Gain Loss On Derivative Net
DerivativeGainLossOnDerivativeNet
|
-203000000 | USD |
CY2017 | us-gaap |
Derivative Gain Loss On Derivative Net
DerivativeGainLossOnDerivativeNet
|
8000000 | USD |
CY2016Q4 | us-gaap |
Derivative Liabilities
DerivativeLiabilities
|
117000000 | USD |
CY2017Q4 | us-gaap |
Derivative Liabilities
DerivativeLiabilities
|
55000000 | USD |
CY2016Q4 | us-gaap |
Derivative Liabilities Current
DerivativeLiabilitiesCurrent
|
77000000 | USD |
CY2017Q4 | us-gaap |
Derivative Liabilities Current
DerivativeLiabilitiesCurrent
|
17000000 | USD |
CY2016Q4 | us-gaap |
Derivative Liabilities Noncurrent
DerivativeLiabilitiesNoncurrent
|
40000000 | USD |
CY2017Q4 | us-gaap |
Derivative Liabilities Noncurrent
DerivativeLiabilitiesNoncurrent
|
38000000 | USD |
CY2015 | us-gaap |
Dividends Common Stock
DividendsCommonStock
|
761000000 | USD |
CY2016 | us-gaap |
Dividends Common Stock
DividendsCommonStock
|
809000000 | USD |
CY2017 | us-gaap |
Dividends Common Stock
DividendsCommonStock
|
849000000 | USD |
CY2015Q4 | us-gaap |
Dividends Payable Current And Noncurrent
DividendsPayableCurrentAndNoncurrent
|
28000000 | USD |
CY2016Q4 | us-gaap |
Dividends Payable Current And Noncurrent
DividendsPayableCurrentAndNoncurrent
|
46000000 | USD |
CY2017Q4 | us-gaap |
Dividends Payable Current And Noncurrent
DividendsPayableCurrentAndNoncurrent
|
46000000 | USD |
CY2015 | us-gaap |
Earnings Per Share Basic
EarningsPerShareBasic
|
4.07 | |
CY2016 | us-gaap |
Earnings Per Share Basic
EarningsPerShareBasic
|
4.15 | |
CY2017 | us-gaap |
Earnings Per Share Basic
EarningsPerShareBasic
|
4.97 | |
CY2015 | us-gaap |
Earnings Per Share Diluted
EarningsPerShareDiluted
|
4.05 | |
CY2016 | us-gaap |
Earnings Per Share Diluted
EarningsPerShareDiluted
|
4.12 | |
CY2017 | us-gaap |
Earnings Per Share Diluted
EarningsPerShareDiluted
|
4.94 | |
CY2015 | us-gaap |
Effective Income Tax Rate Continuing Operations
EffectiveIncomeTaxRateContinuingOperations
|
0.34 | |
CY2016 | us-gaap |
Effective Income Tax Rate Continuing Operations
EffectiveIncomeTaxRateContinuingOperations
|
0.36 | |
CY2017 | us-gaap |
Effective Income Tax Rate Continuing Operations
EffectiveIncomeTaxRateContinuingOperations
|
0.23 | |
CY2015 | us-gaap |
Effective Income Tax Rate Reconciliation At Federal Statutory Income Tax Rate
EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate
|
0.35 | |
CY2016 | us-gaap |
Effective Income Tax Rate Reconciliation At Federal Statutory Income Tax Rate
EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate
|
0.35 | |
CY2017 | us-gaap |
Effective Income Tax Rate Reconciliation At Federal Statutory Income Tax Rate
EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate
|
0.35 | |
CY2015 | us-gaap |
Effective Income Tax Rate Reconciliation Other Adjustments
EffectiveIncomeTaxRateReconciliationOtherAdjustments
|
0.00 | |
CY2016 | us-gaap |
Effective Income Tax Rate Reconciliation Other Adjustments
EffectiveIncomeTaxRateReconciliationOtherAdjustments
|
0.00 | |
CY2017 | us-gaap |
Effective Income Tax Rate Reconciliation Other Adjustments
EffectiveIncomeTaxRateReconciliationOtherAdjustments
|
-0.02 | |
CY2015 | us-gaap |
Effective Income Tax Rate Reconciliation State And Local Income Taxes
EffectiveIncomeTaxRateReconciliationStateAndLocalIncomeTaxes
|
0.05 | |
CY2016 | us-gaap |
Effective Income Tax Rate Reconciliation State And Local Income Taxes
EffectiveIncomeTaxRateReconciliationStateAndLocalIncomeTaxes
|
0.04 | |
CY2017 | us-gaap |
Effective Income Tax Rate Reconciliation State And Local Income Taxes
EffectiveIncomeTaxRateReconciliationStateAndLocalIncomeTaxes
|
0.04 | |
CY2015 | us-gaap |
Effective Income Tax Rate Reconciliation Tax Credits Research
EffectiveIncomeTaxRateReconciliationTaxCreditsResearch
|
0.00 | |
CY2016 | us-gaap |
Effective Income Tax Rate Reconciliation Tax Credits Research
EffectiveIncomeTaxRateReconciliationTaxCreditsResearch
|
0.01 | |
CY2017 | us-gaap |
Effective Income Tax Rate Reconciliation Tax Credits Research
EffectiveIncomeTaxRateReconciliationTaxCreditsResearch
|
0.00 | |
CY2015 | us-gaap |
Electric Utility Revenue
ElectricUtilityRevenue
|
8832000000 | USD |
CY2016 | us-gaap |
Electric Utility Revenue
ElectricUtilityRevenue
|
8741000000 | USD |
CY2017 | us-gaap |
Electric Utility Revenue
ElectricUtilityRevenue
|
8612000000 | USD |
CY2016Q4 | us-gaap |
Employee Related Liabilities Current
EmployeeRelatedLiabilitiesCurrent
|
101000000 | USD |
CY2017Q4 | us-gaap |
Employee Related Liabilities Current
EmployeeRelatedLiabilitiesCurrent
|
105000000 | USD |
CY2015 | us-gaap |
Employee Service Share Based Compensation Tax Benefit From Compensation Expense
EmployeeServiceShareBasedCompensationTaxBenefitFromCompensationExpense
|
14000000 | USD |
CY2016 | us-gaap |
Employee Service Share Based Compensation Tax Benefit From Compensation Expense
EmployeeServiceShareBasedCompensationTaxBenefitFromCompensationExpense
|
20000000 | USD |
CY2017 | us-gaap |
Employee Service Share Based Compensation Tax Benefit From Compensation Expense
EmployeeServiceShareBasedCompensationTaxBenefitFromCompensationExpense
|
25000000 | USD |
CY2016 | us-gaap |
Environmental Remediation Expense
EnvironmentalRemediationExpense
|
34000000 | USD |
CY2017 | us-gaap |
Environmental Remediation Expense
EnvironmentalRemediationExpense
|
24000000 | USD |
CY2015 | us-gaap |
Equity Method Investment Dividends Or Distributions
EquityMethodInvestmentDividendsOrDistributions
|
31000000 | USD |
CY2016 | us-gaap |
Equity Method Investment Dividends Or Distributions
EquityMethodInvestmentDividendsOrDistributions
|
68000000 | USD |
CY2017 | us-gaap |
Equity Method Investment Dividends Or Distributions
EquityMethodInvestmentDividendsOrDistributions
|
108000000 | USD |
CY2016Q4 | us-gaap |
Equity Method Investments
EquityMethodInvestments
|
488000000 | USD |
CY2017Q4 | us-gaap |
Equity Method Investments
EquityMethodInvestments
|
467000000 | USD |
CY2015 | us-gaap |
Excise Taxes Collected
ExciseTaxesCollected
|
354000000 | USD |
CY2016 | us-gaap |
Excise Taxes Collected
ExciseTaxesCollected
|
336000000 | USD |
CY2017 | us-gaap |
Excise Taxes Collected
ExciseTaxesCollected
|
302000000 | USD |
CY2016 | us-gaap |
Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Asset Gain Loss Included In Earnings1
FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetGainLossIncludedInEarnings1
|
-7000000 | USD |
CY2017 | us-gaap |
Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Asset Gain Loss Included In Earnings1
FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetGainLossIncludedInEarnings1
|
8000000 | USD |
CY2016 | us-gaap |
Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Asset Purchases
FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetPurchases
|
4000000 | USD |
CY2017 | us-gaap |
Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Asset Purchases
FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetPurchases
|
2000000 | USD |
CY2016 | us-gaap |
Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Asset Sales
FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetSales
|
4000000 | USD |
CY2017 | us-gaap |
Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Asset Sales
FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetSales
|
0 | USD |
CY2016 | us-gaap |
Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Asset Settlements
FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetSettlements
|
0 | USD |
CY2017 | us-gaap |
Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Asset Settlements
FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetSettlements
|
8000000 | USD |
CY2016 | us-gaap |
Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Asset Transfers Out Of Level3
FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetTransfersOutOfLevel3
|
0 | USD |
CY2017 | us-gaap |
Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Asset Transfers Out Of Level3
FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetTransfersOutOfLevel3
|
11000000 | USD |
CY2015Q4 | us-gaap |
Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Asset Value
FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetValue
|
6000000 | USD |
CY2016Q4 | us-gaap |
Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Asset Value
FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetValue
|
1000000 | USD |
CY2017Q4 | us-gaap |
Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Asset Value
FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetValue
|
1000000 | USD |
CY2016Q4 | us-gaap |
Finite Lived Intangible Assets Accumulated Amortization
FiniteLivedIntangibleAssetsAccumulatedAmortization
|
6000000 | USD |
CY2017Q4 | us-gaap |
Finite Lived Intangible Assets Accumulated Amortization
FiniteLivedIntangibleAssetsAccumulatedAmortization
|
15000000 | USD |
CY2017Q4 | us-gaap |
Finite Lived Intangible Assets Amortization Expense Next Twelve Months
FiniteLivedIntangibleAssetsAmortizationExpenseNextTwelveMonths
|
9000000 | USD |
CY2017Q4 | us-gaap |
Finite Lived Intangible Assets Amortization Expense Year Five
FiniteLivedIntangibleAssetsAmortizationExpenseYearFive
|
9000000 | USD |
CY2017Q4 | us-gaap |
Finite Lived Intangible Assets Amortization Expense Year Four
FiniteLivedIntangibleAssetsAmortizationExpenseYearFour
|
9000000 | USD |
CY2017Q4 | us-gaap |
Finite Lived Intangible Assets Amortization Expense Year Three
FiniteLivedIntangibleAssetsAmortizationExpenseYearThree
|
9000000 | USD |
CY2017Q4 | us-gaap |
Finite Lived Intangible Assets Amortization Expense Year Two
FiniteLivedIntangibleAssetsAmortizationExpenseYearTwo
|
9000000 | USD |
CY2015 | us-gaap |
Fuel Costs
FuelCosts
|
248000000 | USD |
CY2016 | us-gaap |
Fuel Costs
FuelCosts
|
172000000 | USD |
CY2017 | us-gaap |
Fuel Costs
FuelCosts
|
216000000 | USD |
CY2015 | us-gaap |
Gain Loss On Disposition Of Assets1
GainLossOnDispositionOfAssets1
|
0 | USD |
CY2016 | us-gaap |
Gain Loss On Disposition Of Assets1
GainLossOnDispositionOfAssets1
|
104000000 | USD |
CY2017 | us-gaap |
Gain Loss On Disposition Of Assets1
GainLossOnDispositionOfAssets1
|
1000000 | USD |
CY2015 | us-gaap |
Gain Loss On Sale Of Derivatives
GainLossOnSaleOfDerivatives
|
-3000000 | USD |
CY2016 | us-gaap |
Gain Loss On Sale Of Derivatives
GainLossOnSaleOfDerivatives
|
6000000 | USD |
CY2017 | us-gaap |
Gain Loss On Sale Of Derivatives
GainLossOnSaleOfDerivatives
|
4000000 | USD |
CY2015 | us-gaap |
Gas Domestic Regulated Revenue
GasDomesticRegulatedRevenue
|
1709000000 | USD |
CY2016 | us-gaap |
Gas Domestic Regulated Revenue
GasDomesticRegulatedRevenue
|
1692000000 | USD |
CY2017 | us-gaap |
Gas Domestic Regulated Revenue
GasDomesticRegulatedRevenue
|
2133000000 | USD |
CY2016Q4 | us-gaap |
Goodwill
Goodwill
|
428000000 | USD |
CY2017Q4 | us-gaap |
Goodwill
Goodwill
|
428000000 | USD |
CY2017 | us-gaap |
Goodwill Impairment Loss
GoodwillImpairmentLoss
|
0 | USD |
CY2016Q4 | us-gaap |
Guarantee Obligations Maximum Exposure
GuaranteeObligationsMaximumExposure
|
2370000000 | USD |
CY2017Q4 | us-gaap |
Guarantee Obligations Maximum Exposure
GuaranteeObligationsMaximumExposure
|
2073000000 | USD |
CY2015 | us-gaap |
Impairment Of Intangible Assets Finitelived
ImpairmentOfIntangibleAssetsFinitelived
|
0 | USD |
CY2016 | us-gaap |
Impairment Of Intangible Assets Finitelived
ImpairmentOfIntangibleAssetsFinitelived
|
0 | USD |
CY2017 | us-gaap |
Impairment Of Intangible Assets Finitelived
ImpairmentOfIntangibleAssetsFinitelived
|
0 | USD |
CY2016 | us-gaap |
Impairment Of Long Lived Assets Held For Use
ImpairmentOfLongLivedAssetsHeldForUse
|
0 | USD |
CY2017 | us-gaap |
Impairment Of Long Lived Assets Held For Use
ImpairmentOfLongLivedAssetsHeldForUse
|
0 | USD |
CY2015 | us-gaap |
Income Loss From Continuing Operations Before Income Taxes Minority Interest And Income Loss From Equity Method Investments
IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments
|
1798000000 | USD |
CY2016 | us-gaap |
Income Loss From Continuing Operations Before Income Taxes Minority Interest And Income Loss From Equity Method Investments
IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments
|
1943000000 | USD |
CY2017 | us-gaap |
Income Loss From Continuing Operations Before Income Taxes Minority Interest And Income Loss From Equity Method Investments
IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments
|
1997000000 | USD |
CY2016Q4 | us-gaap |
Income Tax Examination Penalties Accrued
IncomeTaxExaminationPenaltiesAccrued
|
0 | USD |
CY2017Q4 | us-gaap |
Income Tax Examination Penalties Accrued
IncomeTaxExaminationPenaltiesAccrued
|
0 | USD |
CY2015 | us-gaap |
Income Tax Expense Benefit
IncomeTaxExpenseBenefit
|
605000000 | USD |
CY2016 | us-gaap |
Income Tax Expense Benefit
IncomeTaxExpenseBenefit
|
698000000 | USD |
CY2017 | us-gaap |
Income Tax Expense Benefit
IncomeTaxExpenseBenefit
|
472000000 | USD |
CY2017 | us-gaap |
Income Tax Reconciliation Tax Contingencies
IncomeTaxReconciliationTaxContingencies
|
8000000 | USD |
CY2015 | us-gaap |
Income Taxes Paid Net
IncomeTaxesPaidNet
|
-36000000 | USD |
CY2016 | us-gaap |
Income Taxes Paid Net
IncomeTaxesPaidNet
|
-180000000 | USD |
CY2017 | us-gaap |
Income Taxes Paid Net
IncomeTaxesPaidNet
|
-29000000 | USD |
CY2016Q4 | us-gaap |
Income Taxes Receivable
IncomeTaxesReceivable
|
79000000 | USD |
CY2017Q4 | us-gaap |
Income Taxes Receivable
IncomeTaxesReceivable
|
64000000 | USD |
CY2015 | us-gaap |
Increase Decrease In Accounts Payable
IncreaseDecreaseInAccountsPayable
|
-79000000 | USD |
CY2016 | us-gaap |
Increase Decrease In Accounts Payable
IncreaseDecreaseInAccountsPayable
|
29000000 | USD |
CY2017 | us-gaap |
Increase Decrease In Accounts Payable
IncreaseDecreaseInAccountsPayable
|
95000000 | USD |
CY2015 | us-gaap |
Increase Decrease In Accounts Receivable
IncreaseDecreaseInAccountsReceivable
|
-96000000 | USD |
CY2016 | us-gaap |
Increase Decrease In Accounts Receivable
IncreaseDecreaseInAccountsReceivable
|
69000000 | USD |
CY2017 | us-gaap |
Increase Decrease In Accounts Receivable
IncreaseDecreaseInAccountsReceivable
|
6000000 | USD |
CY2015 | us-gaap |
Increase Decrease In Deferred Charges
IncreaseDecreaseInDeferredCharges
|
111000000 | USD |
CY2016 | us-gaap |
Increase Decrease In Deferred Charges
IncreaseDecreaseInDeferredCharges
|
97000000 | USD |
CY2017 | us-gaap |
Increase Decrease In Deferred Charges
IncreaseDecreaseInDeferredCharges
|
-2376000000 | USD |
CY2015 | us-gaap |
Increase Decrease In Deferred Liabilities
IncreaseDecreaseInDeferredLiabilities
|
182000000 | USD |
CY2016 | us-gaap |
Increase Decrease In Deferred Liabilities
IncreaseDecreaseInDeferredLiabilities
|
-68000000 | USD |
CY2017 | us-gaap |
Increase Decrease In Deferred Liabilities
IncreaseDecreaseInDeferredLiabilities
|
-2524000000 | USD |
CY2015 | us-gaap |
Increase Decrease In Income Taxes Receivable
IncreaseDecreaseInIncomeTaxesReceivable
|
-58000000 | USD |
CY2016 | us-gaap |
Increase Decrease In Income Taxes Receivable
IncreaseDecreaseInIncomeTaxesReceivable
|
-87000000 | USD |
CY2017 | us-gaap |
Increase Decrease In Income Taxes Receivable
IncreaseDecreaseInIncomeTaxesReceivable
|
-15000000 | USD |
CY2015 | us-gaap |
Increase Decrease In Interest Payable Net
IncreaseDecreaseInInterestPayableNet
|
4000000 | USD |
CY2016 | us-gaap |
Increase Decrease In Interest Payable Net
IncreaseDecreaseInInterestPayableNet
|
14000000 | USD |
CY2017 | us-gaap |
Increase Decrease In Interest Payable Net
IncreaseDecreaseInInterestPayableNet
|
-7000000 | USD |
CY2015 | us-gaap |
Increase Decrease In Inventories
IncreaseDecreaseInInventories
|
-22000000 | USD |
CY2016 | us-gaap |
Increase Decrease In Inventories
IncreaseDecreaseInInventories
|
-13000000 | USD |
CY2017 | us-gaap |
Increase Decrease In Inventories
IncreaseDecreaseInInventories
|
-5000000 | USD |
CY2015 | us-gaap |
Increase Decrease In Other Operating Liabilities
IncreaseDecreaseInOtherOperatingLiabilities
|
66000000 | USD |
CY2016 | us-gaap |
Increase Decrease In Other Operating Liabilities
IncreaseDecreaseInOtherOperatingLiabilities
|
-57000000 | USD |
CY2017 | us-gaap |
Increase Decrease In Other Operating Liabilities
IncreaseDecreaseInOtherOperatingLiabilities
|
128000000 | USD |
CY2015 | us-gaap |
Increase Decrease In Other Receivables
IncreaseDecreaseInOtherReceivables
|
27000000 | USD |
CY2016 | us-gaap |
Increase Decrease In Other Receivables
IncreaseDecreaseInOtherReceivables
|
-54000000 | USD |
CY2017 | us-gaap |
Increase Decrease In Other Receivables
IncreaseDecreaseInOtherReceivables
|
44000000 | USD |
CY2015 | us-gaap |
Increase Decrease In Pension And Postretirement Obligations
IncreaseDecreaseInPensionAndPostretirementObligations
|
756000000 | USD |
CY2016 | us-gaap |
Increase Decrease In Pension And Postretirement Obligations
IncreaseDecreaseInPensionAndPostretirementObligations
|
609000000 | USD |
CY2017 | us-gaap |
Increase Decrease In Pension And Postretirement Obligations
IncreaseDecreaseInPensionAndPostretirementObligations
|
414000000 | USD |
CY2015 | us-gaap |
Increase Decrease In Prepaid Expense
IncreaseDecreaseInPrepaidExpense
|
14000000 | USD |
CY2016 | us-gaap |
Increase Decrease In Prepaid Expense
IncreaseDecreaseInPrepaidExpense
|
-20000000 | USD |
CY2017 | us-gaap |
Increase Decrease In Prepaid Expense
IncreaseDecreaseInPrepaidExpense
|
19000000 | USD |
CY2015 | us-gaap |
Increase Decrease In Property And Other Taxes Payable
IncreaseDecreaseInPropertyAndOtherTaxesPayable
|
-10000000 | USD |
CY2016 | us-gaap |
Increase Decrease In Property And Other Taxes Payable
IncreaseDecreaseInPropertyAndOtherTaxesPayable
|
2000000 | USD |
CY2017 | us-gaap |
Increase Decrease In Property And Other Taxes Payable
IncreaseDecreaseInPropertyAndOtherTaxesPayable
|
44000000 | USD |
CY2015 | us-gaap |
Increase Decrease In Restricted Cash
IncreaseDecreaseInRestrictedCash
|
13000000 | USD |
CY2016 | us-gaap |
Increase Decrease In Restricted Cash
IncreaseDecreaseInRestrictedCash
|
17000000 | USD |
CY2017 | us-gaap |
Increase Decrease In Restricted Cash
IncreaseDecreaseInRestrictedCash
|
-7000000 | USD |
CY2015 | us-gaap |
Incremental Common Shares Attributable To Contingently Issuable Shares
IncrementalCommonSharesAttributableToContingentlyIssuableShares
|
1400000 | shares |
CY2016 | us-gaap |
Incremental Common Shares Attributable To Contingently Issuable Shares
IncrementalCommonSharesAttributableToContingentlyIssuableShares
|
1500000 | shares |
CY2017 | us-gaap |
Incremental Common Shares Attributable To Contingently Issuable Shares
IncrementalCommonSharesAttributableToContingentlyIssuableShares
|
1700000 | shares |
CY2016 | us-gaap |
Insurance Recoveries
InsuranceRecoveries
|
1000000 | USD |
CY2017 | us-gaap |
Insurance Recoveries
InsuranceRecoveries
|
0 | USD |
CY2016Q4 | us-gaap |
Intangible Assets Net Excluding Goodwill
IntangibleAssetsNetExcludingGoodwill
|
124000000 | USD |
CY2017Q4 | us-gaap |
Intangible Assets Net Excluding Goodwill
IntangibleAssetsNetExcludingGoodwill
|
131000000 | USD |
CY2015 | us-gaap |
Interest And Debt Expense
InterestAndDebtExpense
|
653000000 | USD |
CY2016 | us-gaap |
Interest And Debt Expense
InterestAndDebtExpense
|
696000000 | USD |
CY2017 | us-gaap |
Interest And Debt Expense
InterestAndDebtExpense
|
729000000 | USD |
CY2015 | us-gaap |
Interest Expense Debt
InterestExpenseDebt
|
632000000 | USD |
CY2016 | us-gaap |
Interest Expense Debt
InterestExpenseDebt
|
678000000 | USD |
CY2017 | us-gaap |
Interest Expense Debt
InterestExpenseDebt
|
726000000 | USD |
CY2015 | us-gaap |
Interest Expense Other
InterestExpenseOther
|
24000000 | USD |
CY2016 | us-gaap |
Interest Expense Other
InterestExpenseOther
|
24000000 | USD |
CY2017 | us-gaap |
Interest Expense Other
InterestExpenseOther
|
11000000 | USD |
CY2015 | us-gaap |
Interest Paid
InterestPaid
|
597000000 | USD |
CY2016 | us-gaap |
Interest Paid
InterestPaid
|
664000000 | USD |
CY2017 | us-gaap |
Interest Paid
InterestPaid
|
725000000 | USD |
CY2016Q4 | us-gaap |
Interest Payable Current
InterestPayableCurrent
|
150000000 | USD |
CY2017Q4 | us-gaap |
Interest Payable Current
InterestPayableCurrent
|
143000000 | USD |
CY2015 | us-gaap |
Investment Income Net
InvestmentIncomeNet
|
0 | USD |
CY2016 | us-gaap |
Investment Income Net
InvestmentIncomeNet
|
47000000 | USD |
CY2017 | us-gaap |
Investment Income Net
InvestmentIncomeNet
|
79000000 | USD |
CY2016Q4 | us-gaap |
Letters Of Credit Outstanding Amount
LettersOfCreditOutstandingAmount
|
2000000 | USD |
CY2017Q4 | us-gaap |
Letters Of Credit Outstanding Amount
LettersOfCreditOutstandingAmount
|
0 | USD |
CY2016Q4 | us-gaap |
Liabilities And Stockholders Equity
LiabilitiesAndStockholdersEquity
|
48255000000 | USD |
CY2017Q4 | us-gaap |
Liabilities And Stockholders Equity
LiabilitiesAndStockholdersEquity
|
48111000000 | USD |
CY2016Q4 | us-gaap |
Liabilities Current
LiabilitiesCurrent
|
3843000000 | USD |
CY2017Q4 | us-gaap |
Liabilities Current
LiabilitiesCurrent
|
4902000000 | USD |
CY2016Q4 | us-gaap |
Liabilities Noncurrent
LiabilitiesNoncurrent
|
15371000000 | USD |
CY2017Q4 | us-gaap |
Liabilities Noncurrent
LiabilitiesNoncurrent
|
13053000000 | USD |
CY2016Q4 | us-gaap |
Loans Payable Current
LoansPayableCurrent
|
0 | USD |
CY2017Q4 | us-gaap |
Loans Payable Current
LoansPayableCurrent
|
0 | USD |
CY2016Q4 | us-gaap |
Long Term Debt
LongTermDebt
|
14774000000 | USD |
CY2017Q4 | us-gaap |
Long Term Debt
LongTermDebt
|
16029000000 | USD |
CY2016Q4 | us-gaap |
Long Term Debt Current
LongTermDebtCurrent
|
39000000 | USD |
CY2017Q4 | us-gaap |
Long Term Debt Current
LongTermDebtCurrent
|
1298000000 | USD |
CY2017Q4 | us-gaap |
Long Term Debt Maturities Repayments Of Principal In Next Twelve Months
LongTermDebtMaturitiesRepaymentsOfPrincipalInNextTwelveMonths
|
1298000000 | USD |
CY2017Q4 | us-gaap |
Long Term Debt Maturities Repayments Of Principal In Year Five
LongTermDebtMaturitiesRepaymentsOfPrincipalInYearFive
|
335000000 | USD |
CY2017Q4 | us-gaap |
Long Term Debt Maturities Repayments Of Principal In Year Four
LongTermDebtMaturitiesRepaymentsOfPrincipalInYearFour
|
544000000 | USD |
CY2017Q4 | us-gaap |
Long Term Debt Maturities Repayments Of Principal In Year Three
LongTermDebtMaturitiesRepaymentsOfPrincipalInYearThree
|
791000000 | USD |
CY2017Q4 | us-gaap |
Long Term Debt Maturities Repayments Of Principal In Year Two
LongTermDebtMaturitiesRepaymentsOfPrincipalInYearTwo
|
578000000 | USD |
CY2016Q4 | us-gaap |
Long Term Debt Noncurrent
LongTermDebtNoncurrent
|
14735000000 | USD |
CY2017Q4 | us-gaap |
Long Term Debt Noncurrent
LongTermDebtNoncurrent
|
14731000000 | USD |
CY2016Q4 | us-gaap |
Long Term Investments
LongTermInvestments
|
1921000000 | USD |
CY2017Q4 | us-gaap |
Long Term Investments
LongTermInvestments
|
2001000000 | USD |
CY2016Q4 | us-gaap |
Longterm Debt Percentage Bearing Variable Interest Amount
LongtermDebtPercentageBearingVariableInterestAmount
|
400000000 | USD |
CY2017Q4 | us-gaap |
Longterm Debt Percentage Bearing Variable Interest Amount
LongtermDebtPercentageBearingVariableInterestAmount
|
0 | USD |
CY2016Q4 | us-gaap |
Margin Deposit Assets
MarginDepositAssets
|
7000000 | USD |
CY2017Q4 | us-gaap |
Margin Deposit Assets
MarginDepositAssets
|
12000000 | USD |
CY2016Q4 | us-gaap |
Minority Interest
MinorityInterest
|
8000000 | USD |
CY2017Q4 | us-gaap |
Minority Interest
MinorityInterest
|
7000000 | USD |
CY2015 | us-gaap |
Minority Interest Period Increase Decrease
MinorityInterestPeriodIncreaseDecrease
|
0 | USD |
CY2016 | us-gaap |
Minority Interest Period Increase Decrease
MinorityInterestPeriodIncreaseDecrease
|
-1000000 | USD |
CY2017 | us-gaap |
Minority Interest Period Increase Decrease
MinorityInterestPeriodIncreaseDecrease
|
-1000000 | USD |
CY2015 | us-gaap |
Net Cash Provided By Used In Discontinued Operations
NetCashProvidedByUsedInDiscontinuedOperations
|
4000000 | USD |
CY2016 | us-gaap |
Net Cash Provided By Used In Discontinued Operations
NetCashProvidedByUsedInDiscontinuedOperations
|
-4000000 | USD |
CY2017 | us-gaap |
Net Cash Provided By Used In Discontinued Operations
NetCashProvidedByUsedInDiscontinuedOperations
|
0 | USD |
CY2015 | us-gaap |
Net Cash Provided By Used In Financing Activities
NetCashProvidedByUsedInFinancingActivities
|
629000000 | USD |
CY2016 | us-gaap |
Net Cash Provided By Used In Financing Activities
NetCashProvidedByUsedInFinancingActivities
|
1345000000 | USD |
CY2017 | us-gaap |
Net Cash Provided By Used In Financing Activities
NetCashProvidedByUsedInFinancingActivities
|
357000000 | USD |
CY2015 | us-gaap |
Net Cash Provided By Used In Investing Activities
NetCashProvidedByUsedInInvestingActivities
|
-3657000000 | USD |
CY2016 | us-gaap |
Net Cash Provided By Used In Investing Activities
NetCashProvidedByUsedInInvestingActivities
|
-4976000000 | USD |
CY2017 | us-gaap |
Net Cash Provided By Used In Investing Activities
NetCashProvidedByUsedInInvestingActivities
|
-3703000000 | USD |
CY2015 | us-gaap |
Net Cash Provided By Used In Operating Activities
NetCashProvidedByUsedInOperatingActivities
|
3277000000 | USD |
CY2016 | us-gaap |
Net Cash Provided By Used In Operating Activities
NetCashProvidedByUsedInOperatingActivities
|
3459000000 | USD |
CY2017 | us-gaap |
Net Cash Provided By Used In Operating Activities
NetCashProvidedByUsedInOperatingActivities
|
3367000000 | USD |
CY2015 | us-gaap |
Net Income Loss
NetIncomeLoss
|
1193000000 | USD |
CY2016 | us-gaap |
Net Income Loss
NetIncomeLoss
|
1245000000 | USD |
CY2017 | us-gaap |
Net Income Loss
NetIncomeLoss
|
1525000000 | USD |
CY2016Q4 | us-gaap |
Non Recourse Debt
NonRecourseDebt
|
845000000 | USD |
CY2017Q4 | us-gaap |
Non Recourse Debt
NonRecourseDebt
|
915000000 | USD |
CY2015 | us-gaap |
Noncash Or Part Noncash Acquisition Debt Assumed1
NoncashOrPartNoncashAcquisitionDebtAssumed1
|
0 | USD |
CY2016 | us-gaap |
Noncash Or Part Noncash Acquisition Debt Assumed1
NoncashOrPartNoncashAcquisitionDebtAssumed1
|
195000000 | USD |
CY2017 | us-gaap |
Noncash Or Part Noncash Acquisition Debt Assumed1
NoncashOrPartNoncashAcquisitionDebtAssumed1
|
0 | USD |
CY2015 | us-gaap |
Nonoperating Income Expense
NonoperatingIncomeExpense
|
24000000 | USD |
CY2016 | us-gaap |
Nonoperating Income Expense
NonoperatingIncomeExpense
|
64000000 | USD |
CY2017 | us-gaap |
Nonoperating Income Expense
NonoperatingIncomeExpense
|
116000000 | USD |
CY2016Q4 | us-gaap |
Notes Payable Current
NotesPayableCurrent
|
1054000000 | USD |
CY2017Q4 | us-gaap |
Notes Payable Current
NotesPayableCurrent
|
577000000 | USD |
CY2015 | us-gaap |
Operating Expenses
OperatingExpenses
|
10127000000 | USD |
CY2016 | us-gaap |
Operating Expenses
OperatingExpenses
|
9604000000 | USD |
CY2017 | us-gaap |
Operating Expenses
OperatingExpenses
|
9424000000 | USD |
CY2015 | us-gaap |
Operating Income Loss
OperatingIncomeLoss
|
2427000000 | USD |
CY2016 | us-gaap |
Operating Income Loss
OperatingIncomeLoss
|
2575000000 | USD |
CY2017 | us-gaap |
Operating Income Loss
OperatingIncomeLoss
|
2610000000 | USD |
CY2017Q4 | us-gaap |
Operating Leases Future Minimum Payments Receivable
OperatingLeasesFutureMinimumPaymentsReceivable
|
1056000000 | USD |
CY2017Q4 | us-gaap |
Operating Leases Future Minimum Payments Receivable Current
OperatingLeasesFutureMinimumPaymentsReceivableCurrent
|
63000000 | USD |
CY2017Q4 | us-gaap |
Operating Leases Future Minimum Payments Receivable In Five Years
OperatingLeasesFutureMinimumPaymentsReceivableInFiveYears
|
59000000 | USD |
CY2017Q4 | us-gaap |
Operating Leases Future Minimum Payments Receivable In Four Years
OperatingLeasesFutureMinimumPaymentsReceivableInFourYears
|
62000000 | USD |
CY2017Q4 | us-gaap |
Operating Leases Future Minimum Payments Receivable In Three Years
OperatingLeasesFutureMinimumPaymentsReceivableInThreeYears
|
63000000 | USD |
CY2017Q4 | us-gaap |
Operating Leases Future Minimum Payments Receivable In Two Years
OperatingLeasesFutureMinimumPaymentsReceivableInTwoYears
|
63000000 | USD |
CY2017Q4 | us-gaap |
Operating Leases Future Minimum Payments Receivable Thereafter
OperatingLeasesFutureMinimumPaymentsReceivableThereafter
|
746000000 | USD |
CY2016Q4 | us-gaap |
Other Assets Current
OtherAssetsCurrent
|
151000000 | USD |
CY2017Q4 | us-gaap |
Other Assets Current
OtherAssetsCurrent
|
189000000 | USD |
CY2016Q4 | us-gaap |
Other Assets Miscellaneous Noncurrent
OtherAssetsMiscellaneousNoncurrent
|
136000000 | USD |
CY2017Q4 | us-gaap |
Other Assets Miscellaneous Noncurrent
OtherAssetsMiscellaneousNoncurrent
|
148000000 | USD |
CY2016Q4 | us-gaap |
Other Assets Noncurrent
OtherAssetsNoncurrent
|
7712000000 | USD |
CY2017Q4 | us-gaap |
Other Assets Noncurrent
OtherAssetsNoncurrent
|
4973000000 | USD |
CY2015 | us-gaap |
Other Comprehensive Income Loss Net Of Tax
OtherComprehensiveIncomeLossNetOfTax
|
11000000 | USD |
CY2016 | us-gaap |
Other Comprehensive Income Loss Net Of Tax
OtherComprehensiveIncomeLossNetOfTax
|
7000000 | USD |
CY2017 | us-gaap |
Other Comprehensive Income Loss Net Of Tax
OtherComprehensiveIncomeLossNetOfTax
|
1000000 | USD |
CY2015 | us-gaap |
Other Comprehensive Income Loss Pension And Other Postretirement Benefit Plans Adjustment Net Of Tax
OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentNetOfTax
|
-11000000 | USD |
CY2016 | us-gaap |
Other Comprehensive Income Loss Pension And Other Postretirement Benefit Plans Adjustment Net Of Tax
OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentNetOfTax
|
-7000000 | USD |
CY2017 | us-gaap |
Other Comprehensive Income Loss Pension And Other Postretirement Benefit Plans Adjustment Net Of Tax
OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentNetOfTax
|
-1000000 | USD |
CY2016Q4 | us-gaap |
Other Deferred Credits Noncurrent
OtherDeferredCreditsNoncurrent
|
215000000 | USD |
CY2017Q4 | us-gaap |
Other Deferred Credits Noncurrent
OtherDeferredCreditsNoncurrent
|
296000000 | USD |
CY2015 | us-gaap |
Other Income
OtherIncome
|
35000000 | USD |
CY2016 | us-gaap |
Other Income
OtherIncome
|
44000000 | USD |
CY2017 | us-gaap |
Other Income
OtherIncome
|
47000000 | USD |
CY2015 | us-gaap |
Other Increase Decrease In Environmental Liabilities
OtherIncreaseDecreaseInEnvironmentalLiabilities
|
22000000 | USD |
CY2016 | us-gaap |
Other Increase Decrease In Environmental Liabilities
OtherIncreaseDecreaseInEnvironmentalLiabilities
|
69000000 | USD |
CY2017 | us-gaap |
Other Increase Decrease In Environmental Liabilities
OtherIncreaseDecreaseInEnvironmentalLiabilities
|
-14000000 | USD |
CY2016Q4 | us-gaap |
Other Liabilities Current
OtherLiabilitiesCurrent
|
297000000 | USD |
CY2017Q4 | us-gaap |
Other Liabilities Current
OtherLiabilitiesCurrent
|
386000000 | USD |
CY2016Q4 | us-gaap |
Other Long Term Debt
OtherLongTermDebt
|
317000000 | USD |
CY2017Q4 | us-gaap |
Other Long Term Debt
OtherLongTermDebt
|
310000000 | USD |
CY2016Q4 | us-gaap |
Other Long Term Investments
OtherLongTermInvestments
|
9000000 | USD |
CY2017Q4 | us-gaap |
Other Long Term Investments
OtherLongTermInvestments
|
9000000 | USD |
CY2015 | us-gaap |
Other Noncash Income Expense
OtherNoncashIncomeExpense
|
-77000000 | USD |
CY2016 | us-gaap |
Other Noncash Income Expense
OtherNoncashIncomeExpense
|
-142000000 | USD |
CY2017 | us-gaap |
Other Noncash Income Expense
OtherNoncashIncomeExpense
|
49000000 | USD |
CY2015 | us-gaap |
Other Nonoperating Expense
OtherNonoperatingExpense
|
16000000 | USD |
CY2016 | us-gaap |
Other Nonoperating Expense
OtherNonoperatingExpense
|
37000000 | USD |
CY2017 | us-gaap |
Other Nonoperating Expense
OtherNonoperatingExpense
|
21000000 | USD |
CY2016Q4 | us-gaap |
Other Receivables
OtherReceivables
|
195000000 | USD |
CY2017Q4 | us-gaap |
Other Receivables
OtherReceivables
|
160000000 | USD |
CY2015 | us-gaap |
Other Sales Revenue Net
OtherSalesRevenueNet
|
1384000000 | USD |
CY2016 | us-gaap |
Other Sales Revenue Net
OtherSalesRevenueNet
|
1091000000 | USD |
CY2017 | us-gaap |
Other Sales Revenue Net
OtherSalesRevenueNet
|
693000000 | USD |
CY2015 | us-gaap |
Payments For Construction In Process
PaymentsForConstructionInProcess
|
2562000000 | USD |
CY2016 | us-gaap |
Payments For Construction In Process
PaymentsForConstructionInProcess
|
2835000000 | USD |
CY2017 | us-gaap |
Payments For Construction In Process
PaymentsForConstructionInProcess
|
3028000000 | USD |
CY2015 | us-gaap |
Payments For Proceeds From Other Investing Activities
PaymentsForProceedsFromOtherInvestingActivities
|
72000000 | USD |
CY2016 | us-gaap |
Payments For Proceeds From Other Investing Activities
PaymentsForProceedsFromOtherInvestingActivities
|
-31000000 | USD |
CY2017 | us-gaap |
Payments For Proceeds From Other Investing Activities
PaymentsForProceedsFromOtherInvestingActivities
|
-37000000 | USD |
CY2015 | us-gaap |
Payments For Proceeds From Removal Costs
PaymentsForProceedsFromRemovalCosts
|
219000000 | USD |
CY2016 | us-gaap |
Payments For Proceeds From Removal Costs
PaymentsForProceedsFromRemovalCosts
|
206000000 | USD |
CY2017 | us-gaap |
Payments For Proceeds From Removal Costs
PaymentsForProceedsFromRemovalCosts
|
248000000 | USD |
CY2015 | us-gaap |
Payments Of Debt Issuance Costs
PaymentsOfDebtIssuanceCosts
|
15000000 | USD |
CY2016 | us-gaap |
Payments Of Debt Issuance Costs
PaymentsOfDebtIssuanceCosts
|
24000000 | USD |
CY2017 | us-gaap |
Payments Of Debt Issuance Costs
PaymentsOfDebtIssuanceCosts
|
19000000 | USD |
CY2015 | us-gaap |
Payments Of Dividends Common Stock
PaymentsOfDividendsCommonStock
|
733000000 | USD |
CY2016 | us-gaap |
Payments Of Dividends Common Stock
PaymentsOfDividendsCommonStock
|
763000000 | USD |
CY2017 | us-gaap |
Payments Of Dividends Common Stock
PaymentsOfDividendsCommonStock
|
803000000 | USD |
CY2015 | us-gaap |
Payments Of Dividends Minority Interest
PaymentsOfDividendsMinorityInterest
|
0 | USD |
CY2016 | us-gaap |
Payments Of Dividends Minority Interest
PaymentsOfDividendsMinorityInterest
|
1000000 | USD |
CY2017 | us-gaap |
Payments Of Dividends Minority Interest
PaymentsOfDividendsMinorityInterest
|
1000000 | USD |
CY2015 | us-gaap |
Payments To Acquire Property Plant And Equipment
PaymentsToAcquirePropertyPlantAndEquipment
|
492000000 | USD |
CY2016 | us-gaap |
Payments To Acquire Property Plant And Equipment
PaymentsToAcquirePropertyPlantAndEquipment
|
845000000 | USD |
CY2017 | us-gaap |
Payments To Acquire Property Plant And Equipment
PaymentsToAcquirePropertyPlantAndEquipment
|
415000000 | USD |
CY2015 | us-gaap |
Pension And Other Postretirement Benefit Contributions
PensionAndOtherPostretirementBenefitContributions
|
756000000 | USD |
CY2016 | us-gaap |
Pension And Other Postretirement Benefit Contributions
PensionAndOtherPostretirementBenefitContributions
|
515000000 | USD |
CY2017 | us-gaap |
Pension And Other Postretirement Benefit Contributions
PensionAndOtherPostretirementBenefitContributions
|
467000000 | USD |
CY2016Q4 | us-gaap |
Pension And Other Postretirement Defined Benefit Plans Liabilities Noncurrent
PensionAndOtherPostretirementDefinedBenefitPlansLiabilitiesNoncurrent
|
1847000000 | USD |
CY2017Q4 | us-gaap |
Pension And Other Postretirement Defined Benefit Plans Liabilities Noncurrent
PensionAndOtherPostretirementDefinedBenefitPlansLiabilitiesNoncurrent
|
1443000000 | USD |
CY2016Q4 | us-gaap |
Plant Held For Future Use Amount
PlantHeldForFutureUseAmount
|
74000000 | USD |
CY2017Q4 | us-gaap |
Plant Held For Future Use Amount
PlantHeldForFutureUseAmount
|
76000000 | USD |
CY2016Q4 | us-gaap |
Prepaid Expense Current
PrepaidExpenseCurrent
|
159000000 | USD |
CY2017Q4 | us-gaap |
Prepaid Expense Current
PrepaidExpenseCurrent
|
178000000 | USD |
CY2016Q1 | us-gaap |
Proceeds From Income Tax Refunds
ProceedsFromIncomeTaxRefunds
|
160000000 | USD |
CY2015 | us-gaap |
Proceeds From Issuance Of Common Stock
ProceedsFromIssuanceOfCommonStock
|
0 | USD |
CY2016 | us-gaap |
Proceeds From Issuance Of Common Stock
ProceedsFromIssuanceOfCommonStock
|
702000000 | USD |
CY2017 | us-gaap |
Proceeds From Issuance Of Common Stock
ProceedsFromIssuanceOfCommonStock
|
343000000 | USD |
CY2015 | us-gaap |
Proceeds From Issuance Of Long Term Debt
ProceedsFromIssuanceOfLongTermDebt
|
1147000000 | USD |
CY2016 | us-gaap |
Proceeds From Issuance Of Long Term Debt
ProceedsFromIssuanceOfLongTermDebt
|
2590000000 | USD |
CY2017 | us-gaap |
Proceeds From Issuance Of Long Term Debt
ProceedsFromIssuanceOfLongTermDebt
|
1697000000 | USD |
CY2015 | us-gaap |
Proceeds From Issuance Of Shares Under Incentive And Share Based Compensation Plans Including Stock Options
ProceedsFromIssuanceOfSharesUnderIncentiveAndShareBasedCompensationPlansIncludingStockOptions
|
1000000 | USD |
CY2016 | us-gaap |
Proceeds From Issuance Of Shares Under Incentive And Share Based Compensation Plans Including Stock Options
ProceedsFromIssuanceOfSharesUnderIncentiveAndShareBasedCompensationPlansIncludingStockOptions
|
51000000 | USD |
CY2017 | us-gaap |
Proceeds From Issuance Of Shares Under Incentive And Share Based Compensation Plans Including Stock Options
ProceedsFromIssuanceOfSharesUnderIncentiveAndShareBasedCompensationPlansIncludingStockOptions
|
51000000 | USD |
CY2015 | us-gaap |
Proceeds From Repayments Of Short Term Debt
ProceedsFromRepaymentsOfShortTermDebt
|
729000000 | USD |
CY2016 | us-gaap |
Proceeds From Repayments Of Short Term Debt
ProceedsFromRepaymentsOfShortTermDebt
|
-475000000 | USD |
CY2017 | us-gaap |
Proceeds From Repayments Of Short Term Debt
ProceedsFromRepaymentsOfShortTermDebt
|
-477000000 | USD |
CY2015 | us-gaap |
Proceeds From Sale Of Productive Assets
ProceedsFromSaleOfProductiveAssets
|
0 | USD |
CY2016 | us-gaap |
Proceeds From Sale Of Productive Assets
ProceedsFromSaleOfProductiveAssets
|
252000000 | USD |
CY2017 | us-gaap |
Proceeds From Sale Of Productive Assets
ProceedsFromSaleOfProductiveAssets
|
34000000 | USD |
CY2016 | us-gaap |
Proceeds From Stock Options Exercised
ProceedsFromStockOptionsExercised
|
3000000 | USD |
CY2016Q4 | us-gaap |
Property Plant And Equipment Net
PropertyPlantAndEquipmentNet
|
35216000000 | USD |
CY2017Q4 | us-gaap |
Property Plant And Equipment Net
PropertyPlantAndEquipmentNet
|
37600000000 | USD |
CY2015 | us-gaap |
Public Utilities Allowance For Funds Used During Construction Additions
PublicUtilitiesAllowanceForFundsUsedDuringConstructionAdditions
|
3000000 | USD |
CY2016 | us-gaap |
Public Utilities Allowance For Funds Used During Construction Additions
PublicUtilitiesAllowanceForFundsUsedDuringConstructionAdditions
|
6000000 | USD |
CY2017 | us-gaap |
Public Utilities Allowance For Funds Used During Construction Additions
PublicUtilitiesAllowanceForFundsUsedDuringConstructionAdditions
|
8000000 | USD |
CY2015 | us-gaap |
Public Utilities Allowance For Funds Used During Construction Capitalized Cost Of Equity
PublicUtilitiesAllowanceForFundsUsedDuringConstructionCapitalizedCostOfEquity
|
5000000 | USD |
CY2016 | us-gaap |
Public Utilities Allowance For Funds Used During Construction Capitalized Cost Of Equity
PublicUtilitiesAllowanceForFundsUsedDuringConstructionCapitalizedCostOfEquity
|
10000000 | USD |
CY2017 | us-gaap |
Public Utilities Allowance For Funds Used During Construction Capitalized Cost Of Equity
PublicUtilitiesAllowanceForFundsUsedDuringConstructionCapitalizedCostOfEquity
|
11000000 | USD |
CY2016Q4 | us-gaap |
Public Utilities Property Plant And Equipment Accumulated Depreciation
PublicUtilitiesPropertyPlantAndEquipmentAccumulatedDepreciation
|
8541000000 | USD |
CY2017Q4 | us-gaap |
Public Utilities Property Plant And Equipment Accumulated Depreciation
PublicUtilitiesPropertyPlantAndEquipmentAccumulatedDepreciation
|
9063000000 | USD |
CY2016Q4 | us-gaap |
Public Utilities Property Plant And Equipment Common
PublicUtilitiesPropertyPlantAndEquipmentCommon
|
2719000000 | USD |
CY2017Q4 | us-gaap |
Public Utilities Property Plant And Equipment Common
PublicUtilitiesPropertyPlantAndEquipmentCommon
|
3008000000 | USD |
CY2016Q4 | us-gaap |
Public Utilities Property Plant And Equipment Construction Work In Progress
PublicUtilitiesPropertyPlantAndEquipmentConstructionWorkInProgress
|
1175000000 | USD |
CY2017Q4 | us-gaap |
Public Utilities Property Plant And Equipment Construction Work In Progress
PublicUtilitiesPropertyPlantAndEquipmentConstructionWorkInProgress
|
1605000000 | USD |
CY2016Q4 | us-gaap |
Public Utilities Property Plant And Equipment Net
PublicUtilitiesPropertyPlantAndEquipmentNet
|
33045000000 | USD |
CY2017Q4 | us-gaap |
Public Utilities Property Plant And Equipment Net
PublicUtilitiesPropertyPlantAndEquipmentNet
|
35273000000 | USD |
CY2016Q4 | us-gaap |
Public Utilities Property Plant And Equipment Plant In Service
PublicUtilitiesPropertyPlantAndEquipmentPlantInService
|
40411000000 | USD |
CY2017Q4 | us-gaap |
Public Utilities Property Plant And Equipment Plant In Service
PublicUtilitiesPropertyPlantAndEquipmentPlantInService
|
42731000000 | USD |
CY2017Q4 | us-gaap |
Ratio Of Indebtedness To Net Capital1
RatioOfIndebtednessToNetCapital1
|
0.51 | |
CY2016Q4 | us-gaap |
Regulatory Assets
RegulatoryAssets
|
7124000000 | USD |
CY2017Q4 | us-gaap |
Regulatory Assets
RegulatoryAssets
|
4333000000 | USD |
CY2016Q4 | us-gaap |
Regulatory Assets Current
RegulatoryAssetsCurrent
|
100000000 | USD |
CY2017Q4 | us-gaap |
Regulatory Assets Current
RegulatoryAssetsCurrent
|
67000000 | USD |
CY2016Q4 | us-gaap |
Regulatory Assets Noncurrent
RegulatoryAssetsNoncurrent
|
7024000000 | USD |
CY2017Q4 | us-gaap |
Regulatory Assets Noncurrent
RegulatoryAssetsNoncurrent
|
4266000000 | USD |
CY2016Q4 | us-gaap |
Regulatory Liabilities
RegulatoryLiabilities
|
2033000000 | USD |
CY2017Q4 | us-gaap |
Regulatory Liabilities
RegulatoryLiabilities
|
4678000000 | USD |
CY2016Q4 | us-gaap |
Regulatory Liability Current
RegulatoryLiabilityCurrent
|
128000000 | USD |
CY2017Q4 | us-gaap |
Regulatory Liability Current
RegulatoryLiabilityCurrent
|
101000000 | USD |
CY2016Q4 | us-gaap |
Regulatory Liability Noncurrent
RegulatoryLiabilityNoncurrent
|
1905000000 | USD |
CY2017Q4 | us-gaap |
Regulatory Liability Noncurrent
RegulatoryLiabilityNoncurrent
|
4577000000 | USD |
CY2015 | us-gaap |
Repayments Of Long Term Debt
RepaymentsOfLongTermDebt
|
500000000 | USD |
CY2016 | us-gaap |
Repayments Of Long Term Debt
RepaymentsOfLongTermDebt
|
735000000 | USD |
CY2017 | us-gaap |
Repayments Of Long Term Debt
RepaymentsOfLongTermDebt
|
434000000 | USD |
CY2015 | us-gaap |
Research And Development Expense
ResearchAndDevelopmentExpense
|
23000000 | USD |
CY2016 | us-gaap |
Research And Development Expense
ResearchAndDevelopmentExpense
|
24000000 | USD |
CY2017 | us-gaap |
Research And Development Expense
ResearchAndDevelopmentExpense
|
24000000 | USD |
CY2016Q4 | us-gaap |
Restricted Cash And Cash Equivalents At Carrying Value
RestrictedCashAndCashEquivalentsAtCarryingValue
|
54000000 | USD |
CY2017Q4 | us-gaap |
Restricted Cash And Cash Equivalents At Carrying Value
RestrictedCashAndCashEquivalentsAtCarryingValue
|
47000000 | USD |
CY2015 | us-gaap |
Revenue Steam Products And Services
RevenueSteamProductsAndServices
|
629000000 | USD |
CY2016 | us-gaap |
Revenue Steam Products And Services
RevenueSteamProductsAndServices
|
551000000 | USD |
CY2017 | us-gaap |
Revenue Steam Products And Services
RevenueSteamProductsAndServices
|
595000000 | USD |
CY2015 | us-gaap |
Revenues
Revenues
|
12554000000 | USD |
CY2016 | us-gaap |
Revenues
Revenues
|
12075000000 | USD |
CY2017 | us-gaap |
Revenues
Revenues
|
12033000000 | USD |
CY2017Q4 | us-gaap |
Share Based Compensation Arrangement By Share Based Payment Award Maximum Employee Subscription Rate
ShareBasedCompensationArrangementByShareBasedPaymentAwardMaximumEmployeeSubscriptionRate
|
0.2 | |
CY2016 | us-gaap |
Share Based Compensation Arrangement By Share Based Payment Award Options Exercises In Period Total Intrinsic Value
ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisesInPeriodTotalIntrinsicValue
|
2000000 | USD |
CY2017 | us-gaap |
Share Based Compensation Arrangement By Share Based Payment Award Options Exercises In Period Total Intrinsic Value
ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisesInPeriodTotalIntrinsicValue
|
0 | USD |
CY2016 | us-gaap |
Stock Issued During Period Value New Issues
StockIssuedDuringPeriodValueNewIssues
|
702000000 | USD |
CY2017 | us-gaap |
Stock Issued During Period Value New Issues
StockIssuedDuringPeriodValueNewIssues
|
343000000 | USD |
CY2016 | us-gaap |
Stock Issued During Period Value Share Based Compensation Gross
StockIssuedDuringPeriodValueShareBasedCompensationGross
|
101000000 | USD |
CY2017 | us-gaap |
Stock Issued During Period Value Share Based Compensation Gross
StockIssuedDuringPeriodValueShareBasedCompensationGross
|
100000000 | USD |
CY2016Q4 | us-gaap |
Stockholders Equity
StockholdersEquity
|
14298000000 | USD |
CY2017Q4 | us-gaap |
Stockholders Equity
StockholdersEquity
|
15418000000 | USD |
CY2014Q4 | us-gaap |
Stockholders Equity Including Portion Attributable To Noncontrolling Interest
StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest
|
12585000000 | USD |
CY2015Q4 | us-gaap |
Stockholders Equity Including Portion Attributable To Noncontrolling Interest
StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest
|
13061000000 | USD |
CY2016Q4 | us-gaap |
Stockholders Equity Including Portion Attributable To Noncontrolling Interest
StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest
|
14306000000 | USD |
CY2017Q4 | us-gaap |
Stockholders Equity Including Portion Attributable To Noncontrolling Interest
StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest
|
15425000000 | USD |
CY2015 | us-gaap |
Tax Adjustments Settlements And Unusual Provisions
TaxAdjustmentsSettlementsAndUnusualProvisions
|
-9000000 | USD |
CY2016 | us-gaap |
Tax Adjustments Settlements And Unusual Provisions
TaxAdjustmentsSettlementsAndUnusualProvisions
|
-9000000 | USD |
CY2017 | us-gaap |
Tax Adjustments Settlements And Unusual Provisions
TaxAdjustmentsSettlementsAndUnusualProvisions
|
-9000000 | USD |
CY2015 | us-gaap |
Taxes Excluding Income And Excise Taxes
TaxesExcludingIncomeAndExciseTaxes
|
1937000000 | USD |
CY2016 | us-gaap |
Taxes Excluding Income And Excise Taxes
TaxesExcludingIncomeAndExciseTaxes
|
2031000000 | USD |
CY2017 | us-gaap |
Taxes Excluding Income And Excise Taxes
TaxesExcludingIncomeAndExciseTaxes
|
2155000000 | USD |
CY2016Q4 | us-gaap |
Taxes Payable Current
TaxesPayableCurrent
|
64000000 | USD |
CY2017Q4 | us-gaap |
Taxes Payable Current
TaxesPayableCurrent
|
108000000 | USD |
CY2016Q4 | us-gaap |
Unamortized Debt Issuance Expense
UnamortizedDebtIssuanceExpense
|
134000000 | USD |
CY2017Q4 | us-gaap |
Unamortized Debt Issuance Expense
UnamortizedDebtIssuanceExpense
|
142000000 | USD |
CY2016Q4 | us-gaap |
Unbilled Contracts Receivable
UnbilledContractsReceivable
|
21000000 | USD |
CY2017Q4 | us-gaap |
Unbilled Contracts Receivable
UnbilledContractsReceivable
|
58000000 | USD |
CY2014Q4 | us-gaap |
Unrecognized Tax Benefits
UnrecognizedTaxBenefits
|
34000000 | USD |
CY2015Q4 | us-gaap |
Unrecognized Tax Benefits
UnrecognizedTaxBenefits
|
34000000 | USD |
CY2016Q4 | us-gaap |
Unrecognized Tax Benefits
UnrecognizedTaxBenefits
|
42000000 | USD |
CY2017Q4 | us-gaap |
Unrecognized Tax Benefits
UnrecognizedTaxBenefits
|
12000000 | USD |
CY2015 | us-gaap |
Unrecognized Tax Benefits Decreases Resulting From Prior Period Tax Positions
UnrecognizedTaxBenefitsDecreasesResultingFromPriorPeriodTaxPositions
|
0 | USD |
CY2016 | us-gaap |
Unrecognized Tax Benefits Decreases Resulting From Prior Period Tax Positions
UnrecognizedTaxBenefitsDecreasesResultingFromPriorPeriodTaxPositions
|
13000000 | USD |
CY2017 | us-gaap |
Unrecognized Tax Benefits Decreases Resulting From Prior Period Tax Positions
UnrecognizedTaxBenefitsDecreasesResultingFromPriorPeriodTaxPositions
|
24000000 | USD |
CY2015 | us-gaap |
Unrecognized Tax Benefits Decreases Resulting From Settlements With Taxing Authorities
UnrecognizedTaxBenefitsDecreasesResultingFromSettlementsWithTaxingAuthorities
|
0 | USD |
CY2016 | us-gaap |
Unrecognized Tax Benefits Decreases Resulting From Settlements With Taxing Authorities
UnrecognizedTaxBenefitsDecreasesResultingFromSettlementsWithTaxingAuthorities
|
0 | USD |
CY2017 | us-gaap |
Unrecognized Tax Benefits Decreases Resulting From Settlements With Taxing Authorities
UnrecognizedTaxBenefitsDecreasesResultingFromSettlementsWithTaxingAuthorities
|
6000000 | USD |
CY2015 | us-gaap |
Unrecognized Tax Benefits Income Tax Penalties Expense
UnrecognizedTaxBenefitsIncomeTaxPenaltiesExpense
|
0 | USD |
CY2016 | us-gaap |
Unrecognized Tax Benefits Income Tax Penalties Expense
UnrecognizedTaxBenefitsIncomeTaxPenaltiesExpense
|
0 | USD |
CY2017 | us-gaap |
Unrecognized Tax Benefits Income Tax Penalties Expense
UnrecognizedTaxBenefitsIncomeTaxPenaltiesExpense
|
0 | USD |
CY2015 | us-gaap |
Unrecognized Tax Benefits Increases Resulting From Current Period Tax Positions
UnrecognizedTaxBenefitsIncreasesResultingFromCurrentPeriodTaxPositions
|
0 | 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
|
1000000 | USD |
CY2015 | us-gaap |
Unrecognized Tax Benefits Increases Resulting From Prior Period Tax Positions
UnrecognizedTaxBenefitsIncreasesResultingFromPriorPeriodTaxPositions
|
1000000 | USD |
CY2016 | us-gaap |
Unrecognized Tax Benefits Increases Resulting From Prior Period Tax Positions
UnrecognizedTaxBenefitsIncreasesResultingFromPriorPeriodTaxPositions
|
19000000 | USD |
CY2017 | us-gaap |
Unrecognized Tax Benefits Increases Resulting From Prior Period Tax Positions
UnrecognizedTaxBenefitsIncreasesResultingFromPriorPeriodTaxPositions
|
1000000 | USD |
CY2015 | us-gaap |
Unrecognized Tax Benefits Reductions Resulting From Lapse Of Applicable Statute Of Limitations
UnrecognizedTaxBenefitsReductionsResultingFromLapseOfApplicableStatuteOfLimitations
|
1000000 | USD |
CY2016 | us-gaap |
Unrecognized Tax Benefits Reductions Resulting From Lapse Of Applicable Statute Of Limitations
UnrecognizedTaxBenefitsReductionsResultingFromLapseOfApplicableStatuteOfLimitations
|
0 | USD |
CY2017 | us-gaap |
Unrecognized Tax Benefits Reductions Resulting From Lapse Of Applicable Statute Of Limitations
UnrecognizedTaxBenefitsReductionsResultingFromLapseOfApplicableStatuteOfLimitations
|
2000000 | USD |
CY2017Q4 | us-gaap |
Unrecognized Tax Benefits That Would Impact Effective Tax Rate
UnrecognizedTaxBenefitsThatWouldImpactEffectiveTaxRate
|
12000000 | USD |
CY2015 | us-gaap |
Utilities Operating Expense Other
UtilitiesOperatingExpenseOther
|
3344000000 | USD |
CY2016 | us-gaap |
Utilities Operating Expense Other
UtilitiesOperatingExpenseOther
|
3269000000 | USD |
CY2017 | us-gaap |
Utilities Operating Expense Other
UtilitiesOperatingExpenseOther
|
3303000000 | USD |
CY2015 | us-gaap |
Weighted Average Number Of Diluted Shares Outstanding
WeightedAverageNumberOfDilutedSharesOutstanding
|
294400000 | shares |
CY2016 | us-gaap |
Weighted Average Number Of Diluted Shares Outstanding
WeightedAverageNumberOfDilutedSharesOutstanding
|
301900000 | shares |
CY2017 | us-gaap |
Weighted Average Number Of Diluted Shares Outstanding
WeightedAverageNumberOfDilutedSharesOutstanding
|
308800000 | shares |
CY2015 | us-gaap |
Weighted Average Number Of Shares Outstanding Basic
WeightedAverageNumberOfSharesOutstandingBasic
|
293000000 | shares |
CY2016 | us-gaap |
Weighted Average Number Of Shares Outstanding Basic
WeightedAverageNumberOfSharesOutstandingBasic
|
300400000 | shares |
CY2017 | us-gaap |
Weighted Average Number Of Shares Outstanding Basic
WeightedAverageNumberOfSharesOutstandingBasic
|
307100000 | shares |
CY2017 | us-gaap |
Prior Period Reclassification Adjustment Description
PriorPeriodReclassificationAdjustmentDescription
|
<div style="font-family:Times New Roman;font-size:10pt;"><div style="line-height:120%;padding-top:17px;font-size:10pt;"><font style="font-family:Arial;font-size:10pt;color:#5e5e61;font-weight:bold;">Reclassification</font></div><div style="line-height:120%;font-size:10pt;"><font style="font-family:Arial;font-size:10pt;color:#5e5e61;">Certain prior year amounts have been reclassified to conform with the current year presentation.</font></div></div> | |
CY2017 | us-gaap |
Use Of Estimates
UseOfEstimates
|
<div style="font-family:Times New Roman;font-size:10pt;"><div style="line-height:120%;padding-top:17px;font-size:10pt;"><font style="font-family:Arial;font-size:10pt;color:#5e5e61;font-weight:bold;">Estimates</font></div><div style="line-height:120%;font-size:10pt;"><font style="font-family:Arial;font-size:10pt;color:#5e5e61;">The preparation of financial statements in conformity with GAAP requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities and contingent assets and liabilities at the date of the financial statements and the reported amounts of revenues and expenses during the reporting period. Actual results could differ from those estimates.</font></div></div> |