2015 Q4 Form 10-K Financial Statement
#000009212217000007 Filed on February 22, 2017
Income Statement
| Concept | 2015 Q4 | 2015 Q3 | 2015 Q2 |
|---|---|---|---|
| Revenue | $3.568B | $5.401B | $4.337B |
| YoY Change | -11.18% | 1.16% | -2.91% |
| Cost Of Revenue | $138.0M | $193.0M | $171.0M |
| YoY Change | -12.66% | -0.52% | 28.57% |
| Gross Profit | $3.430B | $5.208B | $4.166B |
| YoY Change | -11.12% | 1.22% | -3.88% |
| Gross Profit Margin | 96.13% | 96.43% | 96.06% |
| Selling, General & Admin | |||
| YoY Change | |||
| % of Gross Profit | |||
| Research & Development | |||
| YoY Change | |||
| % of Gross Profit | |||
| Depreciation & Amortization | $608.0M | $616.0M | $593.0M |
| YoY Change | 22.83% | 0.0% | -0.34% |
| % of Gross Profit | 17.73% | 11.83% | 14.23% |
| Operating Expenses | $2.669B | $3.409B | $3.045B |
| YoY Change | -17.32% | -1.16% | -5.76% |
| Operating Profit | $578.0M | $1.649B | $1.098B |
| YoY Change | 3.03% | 29.03% | -0.45% |
| Interest Expense | -$205.0M | -$218.0M | -$180.0M |
| YoY Change | 6.22% | 5.31% | -14.29% |
| % of Operating Profit | -35.47% | -13.22% | -16.39% |
| Other Income/Expense, Net | $42.00M | -$179.0M | -$153.0M |
| YoY Change | 110.0% | -419.64% | -373.21% |
| Pretax Income | $415.0M | $1.470B | $945.0M |
| YoY Change | 6.96% | 30.43% | -0.42% |
| Income Tax | $118.0M | $500.0M | $302.0M |
| % Of Pretax Income | 28.43% | 34.01% | 31.96% |
| Net Earnings | $283.0M | $970.0M | $643.0M |
| YoY Change | -5.67% | 31.97% | 2.39% |
| Net Earnings / Revenue | 7.93% | 17.96% | 14.83% |
| Basic Earnings Per Share | $0.30 | $1.05 | $0.69 |
| Diluted Earnings Per Share | $0.30 | $1.05 | $0.69 |
| COMMON SHARES | |||
| Basic Shares Outstanding | 910.0M shares | 909.0M shares | |
| Diluted Shares Outstanding | 912.0M shares | 912.0M shares |
Balance Sheet
| Concept | 2015 Q4 | 2015 Q3 | 2015 Q2 |
|---|---|---|---|
| SHORT-TERM ASSETS | |||
| Cash & Short-Term Investments | $1.404B | $1.109B | $813.0M |
| YoY Change | 97.75% | -21.57% | 39.45% |
| Cash & Equivalents | $1.404B | $1.109B | $813.0M |
| Short-Term Investments | |||
| Other Short-Term Assets | $71.00M | $1.637B | $2.277B |
| YoY Change | 42.0% | 33.41% | 74.48% |
| Inventory | $1.929B | $1.737B | $1.838B |
| Prepaid Expenses | $495.0M | ||
| Receivables | $1.045B | $1.413B | $1.295B |
| Other Receivables | $605.0M | $374.0M | $382.0M |
| Total Short-Term Assets | $6.526B | $6.270B | $6.605B |
| YoY Change | 11.29% | 0.19% | 22.86% |
| LONG-TERM ASSETS | |||
| Property, Plant & Equipment | $61.11B | $58.24B | $57.01B |
| YoY Change | 11.38% | 9.55% | 8.04% |
| Goodwill | $2.000M | ||
| YoY Change | |||
| Intangibles | $317.0M | ||
| YoY Change | |||
| Long-Term Investments | $6.000M | ||
| YoY Change | |||
| Other Assets | $737.0M | $10.26B | $10.13B |
| YoY Change | -20.07% | 24.66% | 22.58% |
| Total Long-Term Assets | $71.79B | $68.95B | $67.58B |
| YoY Change | 11.53% | 12.3% | 10.74% |
| TOTAL ASSETS | |||
| Total Short-Term Assets | $6.526B | $6.270B | $6.605B |
| Total Long-Term Assets | $71.79B | $68.95B | $67.58B |
| Total Assets | $78.32B | $75.22B | $74.18B |
| YoY Change | 11.51% | 11.18% | 11.72% |
| SHORT-TERM LIABILITIES | |||
| YoY Change | |||
| Accounts Payable | $1.905B | $1.419B | $1.395B |
| YoY Change | 19.59% | 2.75% | 5.68% |
| Accrued Expenses | $1.510B | $1.474B | $1.159B |
| YoY Change | -4.49% | 0.68% | 0.43% |
| Deferred Revenue | |||
| YoY Change | |||
| Short-Term Debt | $1.376B | $1.490B | $1.057B |
| YoY Change | 71.36% | 312.74% | -41.83% |
| Long-Term Debt Due | $2.674B | $3.313B | $3.643B |
| YoY Change | -19.77% | 38.16% | 522.74% |
| Total Short-Term Liabilities | $9.129B | $9.689B | $8.694B |
| YoY Change | 1.87% | 40.62% | 45.53% |
| LONG-TERM LIABILITIES | |||
| Long-Term Debt | $24.69B | $22.33B | $22.67B |
| YoY Change | 18.46% | 2.89% | 2.5% |
| Other Long-Term Liabilities | $678.0M | $7.941B | $7.845B |
| YoY Change | 15.11% | 30.97% | 33.06% |
| Total Long-Term Liabilities | $678.0M | $30.27B | $30.52B |
| YoY Change | 15.11% | 9.02% | 8.93% |
| TOTAL LIABILITIES | |||
| Total Short-Term Liabilities | $9.129B | $9.689B | $8.694B |
| Total Long-Term Liabilities | $678.0M | $30.27B | $30.52B |
| Total Liabilities | $56.18B | $53.82B | $53.27B |
| YoY Change | 14.89% | 15.34% | 16.21% |
| SHAREHOLDERS EQUITY | |||
| Retained Earnings | $10.01B | ||
| YoY Change | 4.17% | ||
| Common Stock | $10.85B | ||
| YoY Change | 3.43% | ||
| Preferred Stock | |||
| YoY Change | |||
| Treasury Stock (at cost) | $142.0M | ||
| YoY Change | 446.15% | ||
| Treasury Stock Shares | 3.400M shares | ||
| Shareholders Equity | $20.59B | $21.39B | $20.91B |
| YoY Change | |||
| Total Liabilities & Shareholders Equity | $78.32B | $75.22B | $74.18B |
| YoY Change | 11.51% | 11.18% | 11.72% |
Cashflow Statement
| Concept | 2015 Q4 | 2015 Q3 | 2015 Q2 |
|---|---|---|---|
| OPERATING ACTIVITIES | |||
| Net Income | $283.0M | $970.0M | $643.0M |
| YoY Change | -5.67% | 31.97% | 2.39% |
| Depreciation, Depletion And Amortization | $608.0M | $616.0M | $593.0M |
| YoY Change | 22.83% | 0.0% | -0.34% |
| Cash From Operating Activities | $1.186B | $2.981B | $1.194B |
| YoY Change | 5.14% | 13.91% | 23.47% |
| INVESTING ACTIVITIES | |||
| Capital Expenditures | -$2.775B | -$1.971B | -$1.550B |
| YoY Change | 33.8% | 62.76% | 2.51% |
| Acquisitions | |||
| YoY Change | |||
| Other Investing Activities | $375.0M | -$143.0M | -$109.0M |
| YoY Change | -311.86% | -19.21% | 159.52% |
| Cash From Investing Activities | -$2.400B | -$2.114B | -$1.659B |
| YoY Change | 6.62% | 52.31% | 6.76% |
| FINANCING ACTIVITIES | |||
| Cash Dividend Paid | |||
| YoY Change | |||
| Common Stock Issuance & Retirement, Net | |||
| YoY Change | |||
| Debt Paid & Issued, Net | |||
| YoY Change | |||
| Cash From Financing Activities | 1.509B | -571.0M | 166.0M |
| YoY Change | 260.14% | 43.47% | -71.38% |
| NET CHANGE | |||
| Cash From Operating Activities | 1.186B | 2.981B | 1.194B |
| Cash From Investing Activities | -2.400B | -2.114B | -1.659B |
| Cash From Financing Activities | 1.509B | -571.0M | 166.0M |
| Net Change In Cash | 295.0M | 296.0M | -299.0M |
| YoY Change | -141.9% | -64.38% | 4171.43% |
| FREE CASH FLOW | |||
| Cash From Operating Activities | $1.186B | $2.981B | $1.194B |
| Capital Expenditures | -$2.775B | -$1.971B | -$1.550B |
| Free Cash Flow | $3.961B | $4.952B | $2.744B |
| YoY Change | 23.7% | 29.36% | 10.69% |
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MaximumInsuranceCoverage
|
375000000 | USD |
| CY2016 | so |
Maximum Limit Per Occurrence Period Limit Exhausted
MaximumLimitPerOccurrencePeriodLimitExhausted
|
P3Y | |
| CY2016 | so |
Maximum Percentage Of Transfer Performance Shares To Common Stock Based On Actual Shareholder Return
MaximumPercentageOfTransferPerformanceSharesToCommonStockBasedOnActualShareholderReturn
|
2 | |
| CY2016 | so |
Minimum Percentage Of Transfer Performance Shares To Common Stock Based On Actual Shareholder Return
MinimumPercentageOfTransferPerformanceSharesToCommonStockBasedOnActualShareholderReturn
|
0 | |
| CY2015Q4 | so |
Minority Interest In Percent Of Capitalization
MinorityInterestInPercentOfCapitalization
|
0.030 | |
| CY2016Q4 | so |
Minority Interest In Percent Of Capitalization
MinorityInterestInPercentOfCapitalization
|
0.027 | |
| CY2014 | so |
Mirror Construction Work In Progress
MirrorConstructionWorkInProgress
|
180000000 | USD |
| CY2015 | so |
Mirror Construction Work In Progress
MirrorConstructionWorkInProgress
|
-271000000 | USD |
| CY2016 | so |
Mirror Construction Work In Progress
MirrorConstructionWorkInProgress
|
0 | USD |
| CY2014 | so |
Natural Gas Revenues
NaturalGasRevenues
|
0 | USD |
| CY2015 | so |
Natural Gas Revenues
NaturalGasRevenues
|
0 | USD |
| CY2016 | so |
Natural Gas Revenues
NaturalGasRevenues
|
1596000000 | USD |
| CY2014 | so |
Noncontrolling Interest Increasefrom Contributionsfrom Noncontrolling Interest Holders
NoncontrollingInterestIncreasefromContributionsfromNoncontrollingInterestHolders
|
221000000 | USD |
| CY2015 | so |
Noncontrolling Interest Increasefrom Contributionsfrom Noncontrolling Interest Holders
NoncontrollingInterestIncreasefromContributionsfromNoncontrollingInterestHolders
|
567000000 | USD |
| CY2015Q4 | so |
Nuclear Fuel At Amortized Cost
NuclearFuelAtAmortizedCost
|
934000000 | USD |
| CY2016Q4 | so |
Nuclear Fuel At Amortized Cost
NuclearFuelAtAmortizedCost
|
905000000 | USD |
| CY2016Q4 | so |
Number Of Traditional Operating Companies
NumberOfTraditionalOperatingCompanies
|
4 | segment |
| CY2016 | so |
Original Maturitiesof Temporary Cash Investments
OriginalMaturitiesofTemporaryCashInvestments
|
P90D | |
| CY2015Q4 | so |
Other Accounts Notes And Loans Receivable
OtherAccountsNotesAndLoansReceivable
|
398000000 | USD |
| CY2016Q4 | so |
Other Accounts Notes And Loans Receivable
OtherAccountsNotesAndLoansReceivable
|
377000000 | USD |
| CY2015Q4 | so |
Other Cost Of Removal Obligations
OtherCostOfRemovalObligations
|
1162000000 | USD |
| CY2016Q4 | so |
Other Cost Of Removal Obligations
OtherCostOfRemovalObligations
|
2748000000 | USD |
| CY2014 | so |
Other Electric Revenues
OtherElectricRevenues
|
672000000 | USD |
| CY2015 | so |
Other Electric Revenues
OtherElectricRevenues
|
657000000 | USD |
| CY2016 | so |
Other Electric Revenues
OtherElectricRevenues
|
698000000 | USD |
| CY2015Q4 | so |
Other Regulatory Assets Current
OtherRegulatoryAssetsCurrent
|
580000000 | USD |
| CY2016Q4 | so |
Other Regulatory Assets Current
OtherRegulatoryAssetsCurrent
|
581000000 | USD |
| CY2015Q4 | so |
Other Regulatory Assets Deferred
OtherRegulatoryAssetsDeferred
|
4989000000 | USD |
| CY2016Q4 | so |
Other Regulatory Assets Deferred
OtherRegulatoryAssetsDeferred
|
6851000000 | USD |
| CY2015Q4 | so |
Other Regulatory Liabilities Current
OtherRegulatoryLiabilitiesCurrent
|
278000000 | USD |
| CY2016Q4 | so |
Other Regulatory Liabilities Current
OtherRegulatoryLiabilitiesCurrent
|
236000000 | USD |
| CY2015Q4 | so |
Other Regulatory Liabilities Deferred
OtherRegulatoryLiabilitiesDeferred
|
254000000 | USD |
| CY2016Q4 | so |
Other Regulatory Liabilities Deferred
OtherRegulatoryLiabilitiesDeferred
|
258000000 | USD |
| CY2015Q4 | so |
Other Utility Plant Net
OtherUtilityPlantNet
|
233000000 | USD |
| CY2016Q4 | so |
Other Utility Plant Net
OtherUtilityPlantNet
|
0 | USD |
| CY2015Q4 | so |
Over Recovered Regulatory Clause Revenues Current
OverRecoveredRegulatoryClauseRevenuesCurrent
|
106000000 | USD |
| CY2016Q4 | so |
Over Recovered Regulatory Clause Revenues Current
OverRecoveredRegulatoryClauseRevenuesCurrent
|
135000000 | USD |
| CY2014 | so |
Payments For Investment In Restricted Cash
PaymentsForInvestmentInRestrictedCash
|
11000000 | USD |
| CY2015 | so |
Payments For Investment In Restricted Cash
PaymentsForInvestmentInRestrictedCash
|
160000000 | USD |
| CY2016 | so |
Payments For Investment In Restricted Cash
PaymentsForInvestmentInRestrictedCash
|
733000000 | USD |
| CY2016 | so |
Period Over Which Company Has Elected To Amortize Changes In Market Value Of All Plan Assets
PeriodOverWhichCompanyHasElectedToAmortizeChangesInMarketValueOfAllPlanAssets
|
P5Y | |
| CY2015Q4 | so |
Plant In Service Net Of Depreciation
PlantInServiceNetOfDepreciation
|
50865000000 | USD |
| CY2016Q4 | so |
Plant In Service Net Of Depreciation
PlantInServiceNetOfDepreciation
|
68564000000 | USD |
| CY2014 | so |
Prepaid Long Term Service Agreement
PrepaidLongTermServiceAgreement
|
181000000 | USD |
| CY2015 | so |
Prepaid Long Term Service Agreement
PrepaidLongTermServiceAgreement
|
197000000 | USD |
| CY2016 | so |
Prepaid Long Term Service Agreement
PrepaidLongTermServiceAgreement
|
134000000 | USD |
| CY2014 | so |
Proceeds From Distribution Of Restricted Cash
ProceedsFromDistributionOfRestrictedCash
|
57000000 | USD |
| CY2015 | so |
Proceeds From Distribution Of Restricted Cash
ProceedsFromDistributionOfRestrictedCash
|
154000000 | USD |
| CY2016 | so |
Proceeds From Distribution Of Restricted Cash
ProceedsFromDistributionOfRestrictedCash
|
742000000 | USD |
| CY2014 | so |
Proceeds From Sale Of Securities Held In External Trust Funds
ProceedsFromSaleOfSecuritiesHeldInExternalTrustFunds
|
900000000 | USD |
| CY2015 | so |
Proceeds From Sale Of Securities Held In External Trust Funds
ProceedsFromSaleOfSecuritiesHeldInExternalTrustFunds
|
1400000000 | USD |
| CY2016 | so |
Proceeds From Sale Of Securities Held In External Trust Funds
ProceedsFromSaleOfSecuritiesHeldInExternalTrustFunds
|
1200000000 | USD |
| CY2015Q4 | so |
Public Utilities Property Plant And Equipment Communications Equipment
PublicUtilitiesPropertyPlantAndEquipmentCommunicationsEquipment
|
418000000 | USD |
| CY2016Q4 | so |
Public Utilities Property Plant And Equipment Communications Equipment
PublicUtilitiesPropertyPlantAndEquipmentCommunicationsEquipment
|
424000000 | USD |
| CY2015Q4 | so |
Public Utilities Property Plant And Equipment It Equipment And Software
PublicUtilitiesPropertyPlantAndEquipmentItEquipmentAndSoftware
|
222000000 | USD |
| CY2016Q4 | so |
Public Utilities Property Plant And Equipment It Equipment And Software
PublicUtilitiesPropertyPlantAndEquipmentItEquipmentAndSoftware
|
544000000 | USD |
| CY2015Q4 | so |
Public Utilities Property Plant And Equipment Other
PublicUtilitiesPropertyPlantAndEquipmentOther
|
116000000 | USD |
| CY2016Q4 | so |
Public Utilities Property Plant And Equipment Other
PublicUtilitiesPropertyPlantAndEquipmentOther
|
824000000 | USD |
| CY2015Q4 | so |
Public Utilities Property Plantand Equipment General
PublicUtilitiesPropertyPlantandEquipmentGeneral
|
4377000000 | USD |
| CY2016Q4 | so |
Public Utilities Property Plantand Equipment General
PublicUtilitiesPropertyPlantandEquipmentGeneral
|
4629000000 | USD |
| CY2016Q4 | so |
Public Utilities Property Plantand Equipment Storage Facilities
PublicUtilitiesPropertyPlantandEquipmentStorageFacilities
|
1463000000 | USD |
| CY2015Q4 | so |
Public Utilities Property Plantand Equipment Storage Facilities
PublicUtilitiesPropertyPlantandEquipmentStorageFacilities
|
0 | USD |
| CY2015Q4 | so |
Public Utilities Property Plantand Equipment Transportationand Distribution
PublicUtilitiesPropertyPlantandEquipmentTransportationandDistribution
|
0 | USD |
| CY2016Q4 | so |
Public Utilities Property Plantand Equipment Transportationand Distribution
PublicUtilitiesPropertyPlantandEquipmentTransportationandDistribution
|
11996000000 | USD |
| CY2014 | so |
Purchaseof Membership Interestsfrom Noncontrolling Interests
PurchaseofMembershipInterestsfromNoncontrollingInterests
|
0 | USD |
| CY2015 | so |
Purchaseof Membership Interestsfrom Noncontrolling Interests
PurchaseofMembershipInterestsfromNoncontrollingInterests
|
0 | USD |
| CY2016 | so |
Purchaseof Membership Interestsfrom Noncontrolling Interests
PurchaseofMembershipInterestsfromNoncontrollingInterests
|
129000000 | USD |
| CY2016Q4 | so |
Ratio Of Indebtedness To Capitalization Covenant
RatioOfIndebtednessToCapitalizationCovenant
|
0.7 | |
| CY2015Q3 | so |
Ratio Of Indebtedness To Capitalization Covenant
RatioOfIndebtednessToCapitalizationCovenant
|
0.65 | |
| CY2015Q4 | so |
Redeemable Noncontrolling Interest As Percent Of Capitalization
RedeemableNoncontrollingInterestAsPercentOfCapitalization
|
0.001 | |
| CY2016Q4 | so |
Redeemable Noncontrolling Interest As Percent Of Capitalization
RedeemableNoncontrollingInterestAsPercentOfCapitalization
|
0.002 | |
| CY2015Q4 | so |
Regulatory Hedge Unrealized Gain
RegulatoryHedgeUnrealizedGain
|
3000000 | USD |
| CY2016Q4 | so |
Regulatory Hedge Unrealized Gain
RegulatoryHedgeUnrealizedGain
|
68000000 | USD |
| CY2015Q4 | so |
Regulatory Hedge Unrealized Loss
RegulatoryHedgeUnrealizedLoss
|
217000000 | USD |
| CY2016Q4 | so |
Regulatory Hedge Unrealized Loss
RegulatoryHedgeUnrealizedLoss
|
35000000 | USD |
| CY2016 | so |
Remarketed Pollution Control Bonds
RemarketedPollutionControlBonds
|
400000000 | USD |
| CY2014 | so |
Repayment Of Interestbearing Refundable Deposit Related To Asset Sale
RepaymentOfInterestbearingRefundableDepositRelatedToAssetSale
|
0 | USD |
| CY2015 | so |
Repayment Of Interestbearing Refundable Deposit Related To Asset Sale
RepaymentOfInterestbearingRefundableDepositRelatedToAssetSale
|
275000000 | USD |
| CY2016 | so |
Repayment Of Interestbearing Refundable Deposit Related To Asset Sale
RepaymentOfInterestbearingRefundableDepositRelatedToAssetSale
|
0 | USD |
| CY2014 | so |
Retail Revenues
RetailRevenues
|
15550000000 | USD |
| CY2015 | so |
Retail Revenues
RetailRevenues
|
14987000000 | USD |
| CY2016 | so |
Retail Revenues
RetailRevenues
|
15234000000 | USD |
| CY2016 | so |
Share Based Compensation Arrangement By Share Based Payment Award Number Of Shares Reserved For Issuance Pursuant To Stock Based Compensation Plan
ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesReservedForIssuancePursuantToStockBasedCompensationPlan
|
94000000 | shares |
| CY2016 | so |
Share Based Compensation Shares Vestedand Issued Each Year Employee Remains In Service At Each Vest Year Percentage
ShareBasedCompensationSharesVestedandIssuedEachYearEmployeeRemainsInServiceAtEachVestYearPercentage
|
0.0033 | |
| CY2015Q4 | so |
Short Term Borrowings Excluding Other Energy Service Contracts
ShortTermBorrowingsExcludingOtherEnergyServiceContracts
|
1240000000 | USD |
| CY2016Q4 | so |
Short Term Borrowings Excluding Other Energy Service Contracts
ShortTermBorrowingsExcludingOtherEnergyServiceContracts
|
2032000000 | USD |
| CY2016 | so |
Significantly Increase Or Decrease In Amount Of Unrecognized Tax Benefits
SignificantlyIncreaseOrDecreaseInAmountOfUnrecognizedTaxBenefits
|
P12M | |
| CY2016 | so |
State Investment Tax Credit
StateInvestmentTaxCredit
|
202000000 | USD |
| CY2016 | so |
Stock Issued During Period Shares Company Investment Plan And Employee And Director Stock Plans
StockIssuedDuringPeriodSharesCompanyInvestmentPlanAndEmployeeAndDirectorStockPlans
|
20000000 | shares |
| CY2014Q4 | so |
Tax Positions Not Impacting Effective Tax Rate
TaxPositionsNotImpactingEffectiveTaxRate
|
160000000 | USD |
| CY2015Q4 | so |
Tax Positions Not Impacting Effective Tax Rate
TaxPositionsNotImpactingEffectiveTaxRate
|
423000000 | USD |
| CY2016Q4 | so |
Tax Positions Not Impacting Effective Tax Rate
TaxPositionsNotImpactingEffectiveTaxRate
|
464000000 | USD |
| CY2015Q4 | so |
Temporary Equity Carrying Amount In Percent Of Capitalization
TemporaryEquityCarryingAmountInPercentOfCapitalization
|
0.003 | |
| CY2016Q4 | so |
Temporary Equity Carrying Amount In Percent Of Capitalization
TemporaryEquityCarryingAmountInPercentOfCapitalization
|
0.002 | |
| CY2015Q1 | so |
Trading Price Range Per Common Share High
TradingPriceRangePerCommonShareHigh
|
53.16 | |
| CY2015Q2 | so |
Trading Price Range Per Common Share High
TradingPriceRangePerCommonShareHigh
|
45.44 | |
| CY2015Q3 | so |
Trading Price Range Per Common Share High
TradingPriceRangePerCommonShareHigh
|
46.84 | |
| CY2015Q4 | so |
Trading Price Range Per Common Share High
TradingPriceRangePerCommonShareHigh
|
47.5 | |
| CY2016Q1 | so |
Trading Price Range Per Common Share High
TradingPriceRangePerCommonShareHigh
|
51.73 | |
| CY2016Q2 | so |
Trading Price Range Per Common Share High
TradingPriceRangePerCommonShareHigh
|
53.64 | |
| CY2016Q3 | so |
Trading Price Range Per Common Share High
TradingPriceRangePerCommonShareHigh
|
54.64 | |
| CY2016Q4 | so |
Trading Price Range Per Common Share High
TradingPriceRangePerCommonShareHigh
|
52.23 | |
| CY2015Q1 | so |
Trading Price Range Per Common Share Low
TradingPriceRangePerCommonShareLow
|
43.55 | |
| CY2015Q2 | so |
Trading Price Range Per Common Share Low
TradingPriceRangePerCommonShareLow
|
41.4 | |
| CY2015Q3 | so |
Trading Price Range Per Common Share Low
TradingPriceRangePerCommonShareLow
|
41.81 | |
| CY2015Q4 | so |
Trading Price Range Per Common Share Low
TradingPriceRangePerCommonShareLow
|
43.38 | |
| CY2016Q1 | so |
Trading Price Range Per Common Share Low
TradingPriceRangePerCommonShareLow
|
46 | |
| CY2016Q2 | so |
Trading Price Range Per Common Share Low
TradingPriceRangePerCommonShareLow
|
47.62 | |
| CY2015Q4 | us-gaap |
Accumulated Deferred Investment Tax Credit
AccumulatedDeferredInvestmentTaxCredit
|
1219000000 | USD |
| CY2016Q4 | us-gaap |
Accumulated Deferred Investment Tax Credit
AccumulatedDeferredInvestmentTaxCredit
|
2228000000 | USD |
| CY2016Q3 | so |
Trading Price Range Per Common Share Low
TradingPriceRangePerCommonShareLow
|
50 | |
| CY2016Q4 | so |
Trading Price Range Per Common Share Low
TradingPriceRangePerCommonShareLow
|
46.20 | |
| CY2015Q4 | so |
Unamortized Debt Issuance Expense Current
UnamortizedDebtIssuanceExpenseCurrent
|
1000000 | USD |
| CY2016Q4 | so |
Unamortized Debt Issuance Expense Current
UnamortizedDebtIssuanceExpenseCurrent
|
1000000 | USD |
| CY2015Q4 | so |
Unamortized Fair Value Adjustmentof Longterm Debt
UnamortizedFairValueAdjustmentofLongtermDebt
|
0 | USD |
| CY2016Q4 | so |
Unamortized Fair Value Adjustmentof Longterm Debt
UnamortizedFairValueAdjustmentofLongtermDebt
|
578000000 | USD |
| CY2015Q4 | so |
Unbilled Revenues Current
UnbilledRevenuesCurrent
|
397000000 | USD |
| CY2016Q4 | so |
Unbilled Revenues Current
UnbilledRevenuesCurrent
|
706000000 | USD |
| CY2015Q4 | so |
Under Recovered Regulatory Clause Revenues
UnderRecoveredRegulatoryClauseRevenues
|
63000000 | USD |
| CY2016Q4 | so |
Under Recovered Regulatory Clause Revenues
UnderRecoveredRegulatoryClauseRevenues
|
18000000 | USD |
| CY2016 | so |
Undistributed Retained Earnings Of Subsidiaries
UndistributedRetainedEarningsOfSubsidiaries
|
7000000000 | USD |
| CY2015Q4 | so |
Unrecognized Tax Benefit
UnrecognizedTaxBenefit
|
370000000 | USD |
| CY2016Q4 | so |
Unrecognized Tax Benefit
UnrecognizedTaxBenefit
|
0 | USD |
| CY2015Q4 | so |
Unrecognized Tax Benefits Accrued Taxes
UnrecognizedTaxBenefitsAccruedTaxes
|
10000000 | USD |
| CY2016Q4 | so |
Unrecognized Tax Benefits Accrued Taxes
UnrecognizedTaxBenefitsAccruedTaxes
|
385000000 | USD |
| CY2015Q4 | so |
Utility Plant In Service
UtilityPlantInService
|
74362000000 | USD |
| CY2016Q4 | so |
Utility Plant In Service
UtilityPlantInService
|
95161000000 | USD |
| CY2016Q4 | so |
Weather Derivative Premium
WeatherDerivativePremium
|
4000000 | USD |
| CY2014 | so |
Wholesale Revenues
WholesaleRevenues
|
2184000000 | USD |
| CY2015 | so |
Wholesale Revenues
WholesaleRevenues
|
1798000000 | USD |
| CY2016 | so |
Wholesale Revenues
WholesaleRevenues
|
1926000000 | USD |
| CY2015Q4 | us-gaap |
Accounts Payable Current
AccountsPayableCurrent
|
1905000000 | USD |
| CY2016Q4 | us-gaap |
Accounts Payable Current
AccountsPayableCurrent
|
2228000000 | USD |
| CY2015Q4 | us-gaap |
Accounts Receivable Gross Current
AccountsReceivableGrossCurrent
|
1058000000 | USD |
| CY2016Q4 | us-gaap |
Accounts Receivable Gross Current
AccountsReceivableGrossCurrent
|
1565000000 | USD |
| CY2015Q4 | us-gaap |
Accrual For Taxes Other Than Income Taxes Current
AccrualForTaxesOtherThanIncomeTaxesCurrent
|
484000000 | USD |
| CY2016Q4 | us-gaap |
Accrual For Taxes Other Than Income Taxes Current
AccrualForTaxesOtherThanIncomeTaxesCurrent
|
667000000 | USD |
| CY2015Q4 | us-gaap |
Accrued Environmental Loss Contingencies Noncurrent
AccruedEnvironmentalLossContingenciesNoncurrent
|
42000000 | USD |
| CY2016Q4 | us-gaap |
Accrued Environmental Loss Contingencies Noncurrent
AccruedEnvironmentalLossContingenciesNoncurrent
|
397000000 | USD |
| CY2015Q4 | us-gaap |
Accrued Income Taxes Current
AccruedIncomeTaxesCurrent
|
9000000 | USD |
| CY2016Q4 | us-gaap |
Accrued Salaries Current
AccruedSalariesCurrent
|
915000000 | USD |
| CY2016Q4 | us-gaap |
Accrued Income Taxes Current
AccruedIncomeTaxesCurrent
|
193000000 | USD |
| CY2015Q4 | us-gaap |
Accrued Salaries Current
AccruedSalariesCurrent
|
777000000 | USD |
| CY2015Q4 | us-gaap |
Accumulated Depreciation Depletion And Amortization Property Plant And Equipment
AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment
|
24253000000 | USD |
| CY2016Q4 | us-gaap |
Accumulated Depreciation Depletion And Amortization Property Plant And Equipment
AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment
|
29852000000 | USD |
| CY2015Q4 | us-gaap |
Accumulated Other Comprehensive Income Loss Net Of Tax
AccumulatedOtherComprehensiveIncomeLossNetOfTax
|
-130000000 | USD |
| CY2016Q4 | us-gaap |
Accumulated Other Comprehensive Income Loss Net Of Tax
AccumulatedOtherComprehensiveIncomeLossNetOfTax
|
-180000000 | USD |
| CY2015Q4 | us-gaap |
Additional Paid In Capital Common Stock
AdditionalPaidInCapitalCommonStock
|
6282000000 | USD |
| CY2016Q4 | us-gaap |
Additional Paid In Capital Common Stock
AdditionalPaidInCapitalCommonStock
|
9661000000 | USD |
| CY2014 | us-gaap |
Adjustments To Additional Paid In Capital Sharebased Compensation Requisite Service Period Recognition Value
AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue
|
86000000 | USD |
| CY2015 | us-gaap |
Adjustments To Additional Paid In Capital Sharebased Compensation Requisite Service Period Recognition Value
AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue
|
100000000 | USD |
| CY2016 | us-gaap |
Adjustments To Additional Paid In Capital Sharebased Compensation Requisite Service Period Recognition Value
AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue
|
120000000 | USD |
| CY2014 | us-gaap |
Allocated Share Based Compensation Expense
AllocatedShareBasedCompensationExpense
|
27000000 | USD |
| CY2015 | us-gaap |
Allocated Share Based Compensation Expense
AllocatedShareBasedCompensationExpense
|
6000000 | USD |
| CY2016 | us-gaap |
Allocated Share Based Compensation Expense
AllocatedShareBasedCompensationExpense
|
3000000 | USD |
| CY2015Q4 | us-gaap |
Allowance For Doubtful Accounts Receivable Current
AllowanceForDoubtfulAccountsReceivableCurrent
|
13000000 | USD |
| CY2016Q4 | us-gaap |
Allowance For Doubtful Accounts Receivable Current
AllowanceForDoubtfulAccountsReceivableCurrent
|
43000000 | USD |
| CY2014 | us-gaap |
Amortization Of Intangible Assets
AmortizationOfIntangibleAssets
|
3000000 | USD |
| CY2015 | us-gaap |
Amortization Of Intangible Assets
AmortizationOfIntangibleAssets
|
3000000 | USD |
| CY2016 | us-gaap |
Amortization Of Intangible Assets
AmortizationOfIntangibleAssets
|
50000000 | USD |
| CY2014Q4 | us-gaap |
Asset Retirement Obligation
AssetRetirementObligation
|
2201000000 | USD |
| CY2015Q4 | us-gaap |
Asset Retirement Obligation
AssetRetirementObligation
|
3759000000 | USD |
| CY2016Q4 | us-gaap |
Asset Retirement Obligation
AssetRetirementObligation
|
4514000000 | USD |
| CY2015 | us-gaap |
Asset Retirement Obligation Accretion Expense
AssetRetirementObligationAccretionExpense
|
115000000 | USD |
| CY2016 | us-gaap |
Asset Retirement Obligation Accretion Expense
AssetRetirementObligationAccretionExpense
|
162000000 | USD |
| CY2014 | us-gaap |
Asset Retirement Obligation Cash Paid To Settle
AssetRetirementObligationCashPaidToSettle
|
17000000 | USD |
| CY2015 | us-gaap |
Asset Retirement Obligation Cash Paid To Settle
AssetRetirementObligationCashPaidToSettle
|
37000000 | USD |
| CY2016 | us-gaap |
Asset Retirement Obligation Cash Paid To Settle
AssetRetirementObligationCashPaidToSettle
|
171000000 | USD |
| CY2015Q4 | us-gaap |
Asset Retirement Obligation Current
AssetRetirementObligationCurrent
|
217000000 | USD |
| CY2016Q4 | us-gaap |
Asset Retirement Obligation Current
AssetRetirementObligationCurrent
|
378000000 | USD |
| CY2015 | us-gaap |
Asset Retirement Obligation Liabilities Incurred
AssetRetirementObligationLiabilitiesIncurred
|
662000000 | USD |
| CY2016 | us-gaap |
Asset Retirement Obligation Liabilities Incurred
AssetRetirementObligationLiabilitiesIncurred
|
66000000 | USD |
| CY2015 | us-gaap |
Asset Retirement Obligation Liabilities Settled
AssetRetirementObligationLiabilitiesSettled
|
37000000 | USD |
| CY2016 | us-gaap |
Asset Retirement Obligation Liabilities Settled
AssetRetirementObligationLiabilitiesSettled
|
171000000 | USD |
| CY2015 | us-gaap |
Asset Retirement Obligation Revision Of Estimate
AssetRetirementObligationRevisionOfEstimate
|
818000000 | USD |
| CY2016 | us-gaap |
Asset Retirement Obligation Revision Of Estimate
AssetRetirementObligationRevisionOfEstimate
|
698000000 | USD |
| CY2015Q4 | us-gaap |
Asset Retirement Obligations Noncurrent
AssetRetirementObligationsNoncurrent
|
3542000000 | USD |
| CY2016Q4 | us-gaap |
Asset Retirement Obligations Noncurrent
AssetRetirementObligationsNoncurrent
|
4136000000 | USD |
| CY2014Q4 | us-gaap |
Assets
Assets
|
70233000000 | USD |
| CY2015Q4 | us-gaap |
Assets
Assets
|
78318000000 | USD |
| CY2016Q4 | us-gaap |
Assets
Assets
|
109697000000 | USD |
| CY2015Q4 | us-gaap |
Assets Current
AssetsCurrent
|
6526000000 | USD |
| CY2016Q4 | us-gaap |
Assets Current
AssetsCurrent
|
9722000000 | USD |
| CY2014 | us-gaap |
Capital Expenditures Incurred But Not Yet Paid
CapitalExpendituresIncurredButNotYetPaid
|
528000000 | USD |
| CY2015 | us-gaap |
Capital Expenditures Incurred But Not Yet Paid
CapitalExpendituresIncurredButNotYetPaid
|
844000000 | USD |
| CY2016 | us-gaap |
Capital Expenditures Incurred But Not Yet Paid
CapitalExpendituresIncurredButNotYetPaid
|
1500000000 | USD |
| CY2015Q4 | us-gaap |
Capital Lease Obligations
CapitalLeaseObligations
|
146000000 | USD |
| CY2016Q4 | us-gaap |
Capital Lease Obligations
CapitalLeaseObligations
|
136000000 | USD |
| CY2015Q4 | us-gaap |
Capital Lease Obligations Current
CapitalLeaseObligationsCurrent
|
32000000 | USD |
| CY2016Q4 | us-gaap |
Capital Lease Obligations Current
CapitalLeaseObligationsCurrent
|
32000000 | USD |
| CY2015Q4 | us-gaap |
Capital Leases Balance Sheet Assets By Major Class Net
CapitalLeasesBalanceSheetAssetsByMajorClassNet
|
152000000 | USD |
| CY2016Q4 | us-gaap |
Capital Leases Balance Sheet Assets By Major Class Net
CapitalLeasesBalanceSheetAssetsByMajorClassNet
|
144000000 | USD |
| CY2015Q4 | us-gaap |
Capital Leases Lessee Balance Sheet Assets By Major Class Accumulated Deprecation
CapitalLeasesLesseeBalanceSheetAssetsByMajorClassAccumulatedDeprecation
|
59000000 | USD |
| CY2016Q4 | us-gaap |
Capital Leases Lessee Balance Sheet Assets By Major Class Accumulated Deprecation
CapitalLeasesLesseeBalanceSheetAssetsByMajorClassAccumulatedDeprecation
|
69000000 | USD |
| CY2015Q4 | us-gaap |
Capitalization Longterm Debt And Equity
CapitalizationLongtermDebtAndEquity
|
46831000000 | USD |
| CY2016Q4 | us-gaap |
Capitalization Longterm Debt And Equity
CapitalizationLongtermDebtAndEquity
|
69523000000 | USD |
| CY2013Q4 | us-gaap |
Cash And Cash Equivalents At Carrying Value
CashAndCashEquivalentsAtCarryingValue
|
659000000 | USD |
| CY2014Q4 | us-gaap |
Cash And Cash Equivalents At Carrying Value
CashAndCashEquivalentsAtCarryingValue
|
710000000 | USD |
| CY2015Q4 | us-gaap |
Cash And Cash Equivalents At Carrying Value
CashAndCashEquivalentsAtCarryingValue
|
1404000000 | USD |
| CY2016Q4 | us-gaap |
Cash And Cash Equivalents At Carrying Value
CashAndCashEquivalentsAtCarryingValue
|
1975000000 | USD |
| CY2014 | us-gaap |
Cash And Cash Equivalents Period Increase Decrease
CashAndCashEquivalentsPeriodIncreaseDecrease
|
51000000 | USD |
| CY2015 | us-gaap |
Cash And Cash Equivalents Period Increase Decrease
CashAndCashEquivalentsPeriodIncreaseDecrease
|
694000000 | USD |
| CY2016 | us-gaap |
Cash And Cash Equivalents Period Increase Decrease
CashAndCashEquivalentsPeriodIncreaseDecrease
|
571000000 | USD |
| CY2016 | us-gaap |
Cash Flow Hedge Gain Loss To Be Reclassified Within Twelve Months
CashFlowHedgeGainLossToBeReclassifiedWithinTwelveMonths
|
17000000 | USD |
| CY2016Q4 | us-gaap |
Collateral Already Posted Aggregate Fair Value
CollateralAlreadyPostedAggregateFairValue
|
62000000 | USD |
| CY2015Q4 | us-gaap |
Commitments And Contingencies
CommitmentsAndContingencies
|
USD | |
| CY2016Q4 | us-gaap |
Commitments And Contingencies
CommitmentsAndContingencies
|
USD | |
| CY2014 | us-gaap |
Common Stock Dividends Per Share Cash Paid
CommonStockDividendsPerShareCashPaid
|
2.0825 | |
| CY2015Q1 | us-gaap |
Common Stock Dividends Per Share Cash Paid
CommonStockDividendsPerShareCashPaid
|
0.525 | |
| CY2015Q2 | us-gaap |
Common Stock Dividends Per Share Cash Paid
CommonStockDividendsPerShareCashPaid
|
0.5425 | |
| CY2015Q3 | us-gaap |
Common Stock Dividends Per Share Cash Paid
CommonStockDividendsPerShareCashPaid
|
0.5425 | |
| CY2015Q4 | us-gaap |
Common Stock Dividends Per Share Cash Paid
CommonStockDividendsPerShareCashPaid
|
0.5425 | |
| CY2015 | us-gaap |
Common Stock Dividends Per Share Cash Paid
CommonStockDividendsPerShareCashPaid
|
2.1525 | |
| CY2016Q1 | us-gaap |
Common Stock Dividends Per Share Cash Paid
CommonStockDividendsPerShareCashPaid
|
0.5425 | |
| CY2016Q2 | us-gaap |
Common Stock Dividends Per Share Cash Paid
CommonStockDividendsPerShareCashPaid
|
0.5600 | |
| CY2016Q3 | us-gaap |
Common Stock Dividends Per Share Cash Paid
CommonStockDividendsPerShareCashPaid
|
0.5600 | |
| CY2016Q4 | us-gaap |
Common Stock Dividends Per Share Cash Paid
CommonStockDividendsPerShareCashPaid
|
0.5600 | |
| CY2016 | us-gaap |
Common Stock Dividends Per Share Cash Paid
CommonStockDividendsPerShareCashPaid
|
2.2225 | |
| CY2015Q4 | us-gaap |
Common Stock Par Or Stated Value Per Share
CommonStockParOrStatedValuePerShare
|
5 | |
| CY2016Q4 | us-gaap |
Common Stock Par Or Stated Value Per Share
CommonStockParOrStatedValuePerShare
|
5 | |
| CY2015Q4 | us-gaap |
Common Stock Shares Authorized
CommonStockSharesAuthorized
|
1500000000 | shares |
| CY2016Q4 | us-gaap |
Common Stock Shares Authorized
CommonStockSharesAuthorized
|
1500000000 | shares |
| CY2015Q4 | us-gaap |
Common Stock Shares Issued
CommonStockSharesIssued
|
915000000 | shares |
| CY2016Q4 | us-gaap |
Common Stock Shares Issued
CommonStockSharesIssued
|
991000000 | shares |
| CY2015Q4 | us-gaap |
Common Stock Value
CommonStockValue
|
4572000000 | USD |
| CY2016Q4 | us-gaap |
Common Stock Value
CommonStockValue
|
4952000000 | USD |
| CY2014 | us-gaap |
Comprehensive Income Net Of Tax
ComprehensiveIncomeNetOfTax
|
1910000000 | USD |
| CY2015 | us-gaap |
Comprehensive Income Net Of Tax
ComprehensiveIncomeNetOfTax
|
2365000000 | USD |
| CY2016 | us-gaap |
Comprehensive Income Net Of Tax
ComprehensiveIncomeNetOfTax
|
2398000000 | USD |
| CY2014 | us-gaap |
Comprehensive Income Net Of Tax Attributable To Noncontrolling Interest
ComprehensiveIncomeNetOfTaxAttributableToNoncontrollingInterest
|
0 | USD |
| CY2015 | us-gaap |
Comprehensive Income Net Of Tax Attributable To Noncontrolling Interest
ComprehensiveIncomeNetOfTaxAttributableToNoncontrollingInterest
|
14000000 | USD |
| CY2016 | us-gaap |
Comprehensive Income Net Of Tax Attributable To Noncontrolling Interest
ComprehensiveIncomeNetOfTaxAttributableToNoncontrollingInterest
|
36000000 | USD |
| CY2015Q4 | us-gaap |
Construction In Progress Gross
ConstructionInProgressGross
|
9082000000 | USD |
| CY2016Q4 | us-gaap |
Construction In Progress Gross
ConstructionInProgressGross
|
8977000000 | USD |
| CY2015 | us-gaap |
Cost Of Purchased Power
CostOfPurchasedPower
|
645000000 | USD |
| CY2016 | us-gaap |
Cost Of Purchased Power
CostOfPurchasedPower
|
750000000 | USD |
| CY2014 | us-gaap |
Cost Of Purchased Power
CostOfPurchasedPower
|
672000000 | USD |
| CY2014 | us-gaap |
Costs And Expenses
CostsAndExpenses
|
14825000000 | USD |
| CY2015 | us-gaap |
Costs And Expenses
CostsAndExpenses
|
13207000000 | USD |
| CY2016 | us-gaap |
Costs And Expenses
CostsAndExpenses
|
15267000000 | USD |
| CY2014 | us-gaap |
Current Federal Tax Expense Benefit
CurrentFederalTaxExpenseBenefit
|
175000000 | USD |
| CY2015 | us-gaap |
Current Federal Tax Expense Benefit
CurrentFederalTaxExpenseBenefit
|
-177000000 | USD |
| CY2016 | us-gaap |
Current Federal Tax Expense Benefit
CurrentFederalTaxExpenseBenefit
|
1184000000 | USD |
| CY2014 | us-gaap |
Current State And Local Tax Expense Benefit
CurrentStateAndLocalTaxExpenseBenefit
|
93000000 | USD |
| CY2015 | us-gaap |
Current State And Local Tax Expense Benefit
CurrentStateAndLocalTaxExpenseBenefit
|
-33000000 | USD |
| CY2016 | us-gaap |
Current State And Local Tax Expense Benefit
CurrentStateAndLocalTaxExpenseBenefit
|
-108000000 | USD |
| CY2015Q4 | us-gaap |
Customer Deposits Current
CustomerDepositsCurrent
|
404000000 | USD |
| CY2016Q4 | us-gaap |
Customer Deposits Current
CustomerDepositsCurrent
|
558000000 | USD |
| CY2015Q4 | us-gaap |
Debt Instrument Carrying Amount
DebtInstrumentCarryingAmount
|
27216000000 | USD |
| CY2016Q4 | us-gaap |
Debt Instrument Carrying Amount
DebtInstrumentCarryingAmount
|
45080000000 | USD |
| CY2015Q4 | us-gaap |
Debt Instrument Fair Value
DebtInstrumentFairValue
|
27913000000 | USD |
| CY2016Q4 | us-gaap |
Debt Instrument Fair Value
DebtInstrumentFairValue
|
46286000000 | USD |
| CY2015Q4 | us-gaap |
Debt Instrument Unamortized Discount
DebtInstrumentUnamortizedDiscount
|
36000000 | USD |
| CY2016Q4 | us-gaap |
Debt Instrument Unamortized Discount
DebtInstrumentUnamortizedDiscount
|
194000000 | USD |
| CY2015Q4 | us-gaap |
Debt Instrument Unamortized Premium
DebtInstrumentUnamortizedPremium
|
61000000 | USD |
| CY2016Q4 | us-gaap |
Debt Instrument Unamortized Premium
DebtInstrumentUnamortizedPremium
|
52000000 | USD |
| CY2015Q4 | us-gaap |
Decommissioning Fund Investments
DecommissioningFundInvestments
|
1512000000 | USD |
| CY2016Q4 | us-gaap |
Decommissioning Fund Investments
DecommissioningFundInvestments
|
1606000000 | USD |
| CY2016Q4 | us-gaap |
Decommissioning Fund Investments
DecommissioningFundInvestments
|
1600000000 | USD |
| CY2015Q4 | us-gaap |
Deferred Credits And Other Liabilities
DeferredCreditsAndOtherLiabilities
|
22358000000 | USD |
| CY2016Q4 | us-gaap |
Deferred Credits And Other Liabilities
DeferredCreditsAndOtherLiabilities
|
27257000000 | USD |
| CY2014 | us-gaap |
Deferred Federal Income Tax Expense Benefit
DeferredFederalIncomeTaxExpenseBenefit
|
695000000 | USD |
| CY2015 | us-gaap |
Deferred Federal Income Tax Expense Benefit
DeferredFederalIncomeTaxExpenseBenefit
|
1266000000 | USD |
| CY2016 | us-gaap |
Deferred Federal Income Tax Expense Benefit
DeferredFederalIncomeTaxExpenseBenefit
|
-342000000 | USD |
| CY2014 | us-gaap |
Deferred Income Tax Expense Benefit
DeferredIncomeTaxExpenseBenefit
|
709000000 | USD |
| CY2015 | us-gaap |
Deferred Income Tax Expense Benefit
DeferredIncomeTaxExpenseBenefit
|
1404000000 | USD |
| CY2016 | us-gaap |
Deferred Income Tax Expense Benefit
DeferredIncomeTaxExpenseBenefit
|
-127000000 | USD |
| CY2015Q4 | us-gaap |
Deferred Income Tax Liabilities
DeferredIncomeTaxLiabilities
|
18945000000 | USD |
| CY2016Q4 | us-gaap |
Deferred Income Tax Liabilities
DeferredIncomeTaxLiabilities
|
23512000000 | USD |
| CY2014 | us-gaap |
Deferred State And Local Income Tax Expense Benefit
DeferredStateAndLocalIncomeTaxExpenseBenefit
|
14000000 | USD |
| CY2015 | us-gaap |
Deferred State And Local Income Tax Expense Benefit
DeferredStateAndLocalIncomeTaxExpenseBenefit
|
138000000 | USD |
| CY2016 | us-gaap |
Deferred State And Local Income Tax Expense Benefit
DeferredStateAndLocalIncomeTaxExpenseBenefit
|
217000000 | USD |
| CY2015Q4 | us-gaap |
Deferred Tax Assets Gross
DeferredTaxAssetsGross
|
6683000000 | USD |
| CY2016Q4 | us-gaap |
Deferred Tax Assets Gross
DeferredTaxAssetsGross
|
9495000000 | USD |
| CY2015Q4 | us-gaap |
Deferred Tax Assets Liabilities Net Noncurrent
DeferredTaxAssetsLiabilitiesNetNoncurrent
|
56000000 | USD |
| CY2016Q4 | us-gaap |
Deferred Tax Assets Liabilities Net Noncurrent
DeferredTaxAssetsLiabilitiesNetNoncurrent
|
52000000 | USD |
| CY2016Q4 | us-gaap |
Deferred Tax Assets Operating Loss Carryforwards State And Local
DeferredTaxAssetsOperatingLossCarryforwardsStateAndLocal
|
203000000 | USD |
| CY2016Q4 | us-gaap |
Deferred Tax Assets Regulatory Assets And Liabilities
DeferredTaxAssetsRegulatoryAssetsAndLiabilities
|
1600000000 | USD |
| CY2015Q4 | us-gaap |
Deferred Tax Assets Valuation Allowance
DeferredTaxAssetsValuationAllowance
|
4000000 | USD |
| CY2016Q4 | us-gaap |
Deferred Tax Assets Valuation Allowance
DeferredTaxAssetsValuationAllowance
|
23000000 | USD |
| CY2015Q4 | us-gaap |
Deferred Tax Liabilities
DeferredTaxLiabilities
|
12266000000 | USD |
| CY2016Q4 | us-gaap |
Deferred Tax Liabilities
DeferredTaxLiabilities
|
14040000000 | USD |
| CY2015Q4 | us-gaap |
Deferred Tax Liabilities Noncurrent
DeferredTaxLiabilitiesNoncurrent
|
12322000000 | USD |
| CY2016Q4 | us-gaap |
Deferred Tax Liabilities Noncurrent
DeferredTaxLiabilitiesNoncurrent
|
14092000000 | USD |
| CY2016Q4 | us-gaap |
Deferred Tax Liabilities Regulatory Assets And Liabilities
DeferredTaxLiabilitiesRegulatoryAssetsAndLiabilities
|
219000000 | USD |
| CY2015Q4 | us-gaap |
Defined Benefit Plan Accumulated Benefit Obligation
DefinedBenefitPlanAccumulatedBenefitObligation
|
9600000000 | USD |
| CY2016Q4 | us-gaap |
Defined Benefit Plan Accumulated Benefit Obligation
DefinedBenefitPlanAccumulatedBenefitObligation
|
11300000000 | USD |
| CY2016 | us-gaap |
Defined Benefit Plan Effect Of One Percentage Point Decrease On Accumulated Postretirement Benefit Obligation1
DefinedBenefitPlanEffectOfOnePercentagePointDecreaseOnAccumulatedPostretirementBenefitObligation1
|
110000000 | USD |
| CY2016 | us-gaap |
Defined Benefit Plan Effect Of One Percentage Point Decrease On Service And Interest Cost Components1
DefinedBenefitPlanEffectOfOnePercentagePointDecreaseOnServiceAndInterestCostComponents1
|
3000000 | USD |
| CY2016 | us-gaap |
Defined Benefit Plan Effect Of One Percentage Point Increase On Accumulated Postretirement Benefit Obligation
DefinedBenefitPlanEffectOfOnePercentagePointIncreaseOnAccumulatedPostretirementBenefitObligation
|
128000000 | USD |
| CY2016 | us-gaap |
Defined Benefit Plan Effect Of One Percentage Point Increase On Service And Interest Cost Components
DefinedBenefitPlanEffectOfOnePercentagePointIncreaseOnServiceAndInterestCostComponents
|
4000000 | USD |
| CY2016 | us-gaap |
Defined Benefit Plan Target Plan Asset Allocations
DefinedBenefitPlanTargetPlanAssetAllocations
|
1 | |
| CY2015Q4 | us-gaap |
Defined Benefit Plan Weighted Average Asset Allocations
DefinedBenefitPlanWeightedAverageAssetAllocations
|
1 | |
| CY2014 | us-gaap |
Depreciation Amortization And Accretion Net
DepreciationAmortizationAndAccretionNet
|
2293000000 | USD |
| CY2015 | us-gaap |
Depreciation Amortization And Accretion Net
DepreciationAmortizationAndAccretionNet
|
2395000000 | USD |
| CY2016 | us-gaap |
Depreciation Amortization And Accretion Net
DepreciationAmortizationAndAccretionNet
|
2923000000 | USD |
| CY2015Q4 | us-gaap |
Derivative Instruments And Hedges Liabilities
DerivativeInstrumentsAndHedgesLiabilities
|
156000000 | USD |
| CY2016Q4 | us-gaap |
Derivative Instruments And Hedges Liabilities
DerivativeInstrumentsAndHedgesLiabilities
|
107000000 | USD |
| CY2014 | us-gaap |
Derivative Instruments Gain Loss Reclassified From Accumulated Oci Into Income Effective Portion Net
DerivativeInstrumentsGainLossReclassifiedFromAccumulatedOCIIntoIncomeEffectivePortionNet
|
-8000000 | USD |
| CY2015 | us-gaap |
Derivative Instruments Gain Loss Reclassified From Accumulated Oci Into Income Effective Portion Net
DerivativeInstrumentsGainLossReclassifiedFromAccumulatedOCIIntoIncomeEffectivePortionNet
|
-9000000 | USD |
| CY2016 | us-gaap |
Derivative Instruments Gain Loss Reclassified From Accumulated Oci Into Income Effective Portion Net
DerivativeInstrumentsGainLossReclassifiedFromAccumulatedOCIIntoIncomeEffectivePortionNet
|
-112000000 | USD |
| CY2014 | us-gaap |
Derivative Instruments Gain Loss Recognized In Other Comprehensive Income Effective Portion Net
DerivativeInstrumentsGainLossRecognizedInOtherComprehensiveIncomeEffectivePortionNet
|
-16000000 | USD |
| CY2015 | us-gaap |
Derivative Instruments Gain Loss Recognized In Other Comprehensive Income Effective Portion Net
DerivativeInstrumentsGainLossRecognizedInOtherComprehensiveIncomeEffectivePortionNet
|
-22000000 | USD |
| CY2016 | us-gaap |
Derivative Instruments Gain Loss Recognized In Other Comprehensive Income Effective Portion Net
DerivativeInstrumentsGainLossRecognizedInOtherComprehensiveIncomeEffectivePortionNet
|
-220000000 | USD |
| CY2014 | us-gaap |
Dividends Common Stock Cash
DividendsCommonStockCash
|
1866000000 | USD |
| CY2015 | us-gaap |
Dividends Common Stock Cash
DividendsCommonStockCash
|
1959000000 | USD |
| CY2016 | us-gaap |
Dividends Common Stock Cash
DividendsCommonStockCash
|
2104000000 | USD |
| CY2014 | us-gaap |
Earnings Per Share Basic
EarningsPerShareBasic
|
2.19 | |
| CY2015Q1 | us-gaap |
Earnings Per Share Basic
EarningsPerShareBasic
|
0.56 | |
| CY2015Q2 | us-gaap |
Earnings Per Share Basic
EarningsPerShareBasic
|
0.69 | |
| CY2015Q3 | us-gaap |
Earnings Per Share Basic
EarningsPerShareBasic
|
1.05 | |
| CY2015Q4 | us-gaap |
Earnings Per Share Basic
EarningsPerShareBasic
|
0.30 | |
| CY2015 | us-gaap |
Earnings Per Share Basic
EarningsPerShareBasic
|
2.60 | |
| CY2016Q1 | us-gaap |
Earnings Per Share Basic
EarningsPerShareBasic
|
0.53 | |
| CY2016Q2 | us-gaap |
Earnings Per Share Basic
EarningsPerShareBasic
|
0.67 | |
| CY2016Q3 | us-gaap |
Earnings Per Share Basic
EarningsPerShareBasic
|
1.18 | |
| CY2016Q4 | us-gaap |
Earnings Per Share Basic
EarningsPerShareBasic
|
0.20 | |
| CY2016 | us-gaap |
Earnings Per Share Basic
EarningsPerShareBasic
|
2.57 | |
| CY2014 | us-gaap |
Earnings Per Share Diluted
EarningsPerShareDiluted
|
2.18 | |
| CY2015Q1 | us-gaap |
Earnings Per Share Diluted
EarningsPerShareDiluted
|
0.56 | |
| CY2015Q2 | us-gaap |
Earnings Per Share Diluted
EarningsPerShareDiluted
|
0.69 | |
| CY2015Q3 | us-gaap |
Earnings Per Share Diluted
EarningsPerShareDiluted
|
1.05 | |
| CY2015Q4 | us-gaap |
Earnings Per Share Diluted
EarningsPerShareDiluted
|
0.30 | |
| CY2015 | us-gaap |
Earnings Per Share Diluted
EarningsPerShareDiluted
|
2.59 | |
| CY2016Q1 | us-gaap |
Earnings Per Share Diluted
EarningsPerShareDiluted
|
0.53 | |
| CY2016Q2 | us-gaap |
Earnings Per Share Diluted
EarningsPerShareDiluted
|
0.66 | |
| CY2016Q3 | us-gaap |
Earnings Per Share Diluted
EarningsPerShareDiluted
|
1.17 | |
| CY2016Q4 | us-gaap |
Earnings Per Share Diluted
EarningsPerShareDiluted
|
0.20 | |
| CY2016 | us-gaap |
Earnings Per Share Diluted
EarningsPerShareDiluted
|
2.55 | |
| CY2014 | us-gaap |
Effective Income Tax Rate Continuing Operations
EffectiveIncomeTaxRateContinuingOperations
|
0.325 | |
| CY2015 | us-gaap |
Effective Income Tax Rate Continuing Operations
EffectiveIncomeTaxRateContinuingOperations
|
0.329 | |
| CY2016 | us-gaap |
Effective Income Tax Rate Continuing Operations
EffectiveIncomeTaxRateContinuingOperations
|
0.273 | |
| CY2014 | us-gaap |
Effective Income Tax Rate Reconciliation At Federal Statutory Income Tax Rate
EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate
|
0.35 | |
| CY2015 | us-gaap |
Effective Income Tax Rate Reconciliation At Federal Statutory Income Tax Rate
EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate
|
0.35 | |
| CY2016 | us-gaap |
Effective Income Tax Rate Reconciliation At Federal Statutory Income Tax Rate
EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate
|
0.35 | |
| CY2014 | us-gaap |
Effective Income Tax Rate Reconciliation Deductions Employee Stock Ownership Plan Dividends
EffectiveIncomeTaxRateReconciliationDeductionsEmployeeStockOwnershipPlanDividends
|
0.014 | |
| CY2015 | us-gaap |
Effective Income Tax Rate Reconciliation Deductions Employee Stock Ownership Plan Dividends
EffectiveIncomeTaxRateReconciliationDeductionsEmployeeStockOwnershipPlanDividends
|
0.012 | |
| CY2016 | us-gaap |
Effective Income Tax Rate Reconciliation Deductions Employee Stock Ownership Plan Dividends
EffectiveIncomeTaxRateReconciliationDeductionsEmployeeStockOwnershipPlanDividends
|
0.012 | |
| CY2014 | us-gaap |
Effective Income Tax Rate Reconciliation Nondeductible Expense Depreciation
EffectiveIncomeTaxRateReconciliationNondeductibleExpenseDepreciation
|
0.014 | |
| CY2015 | us-gaap |
Effective Income Tax Rate Reconciliation Nondeductible Expense Depreciation
EffectiveIncomeTaxRateReconciliationNondeductibleExpenseDepreciation
|
0.012 | |
| CY2016 | us-gaap |
Effective Income Tax Rate Reconciliation Nondeductible Expense Depreciation
EffectiveIncomeTaxRateReconciliationNondeductibleExpenseDepreciation
|
0.009 | |
| CY2014 | us-gaap |
Effective Income Tax Rate Reconciliation Other Adjustments
EffectiveIncomeTaxRateReconciliationOtherAdjustments
|
0.002 | |
| CY2015 | us-gaap |
Effective Income Tax Rate Reconciliation Other Adjustments
EffectiveIncomeTaxRateReconciliationOtherAdjustments
|
0.002 | |
| CY2016 | us-gaap |
Effective Income Tax Rate Reconciliation Other Adjustments
EffectiveIncomeTaxRateReconciliationOtherAdjustments
|
-0.004 | |
| CY2014 | us-gaap |
Effective Income Tax Rate Reconciliation State And Local Income Taxes
EffectiveIncomeTaxRateReconciliationStateAndLocalIncomeTaxes
|
0.023 | |
| CY2015 | us-gaap |
Effective Income Tax Rate Reconciliation State And Local Income Taxes
EffectiveIncomeTaxRateReconciliationStateAndLocalIncomeTaxes
|
0.019 | |
| CY2016 | us-gaap |
Effective Income Tax Rate Reconciliation State And Local Income Taxes
EffectiveIncomeTaxRateReconciliationStateAndLocalIncomeTaxes
|
0.021 | |
| CY2014 | us-gaap |
Effective Income Tax Rate Reconciliation Tax Credits Investment
EffectiveIncomeTaxRateReconciliationTaxCreditsInvestment
|
0.016 | |
| CY2015 | us-gaap |
Effective Income Tax Rate Reconciliation Tax Credits Investment
EffectiveIncomeTaxRateReconciliationTaxCreditsInvestment
|
0.015 | |
| CY2016 | us-gaap |
Effective Income Tax Rate Reconciliation Tax Credits Investment
EffectiveIncomeTaxRateReconciliationTaxCreditsInvestment
|
0.050 | |
| CY2014 | us-gaap |
Employee Service Share Based Compensation Cash Received From Exercise Of Stock Options
EmployeeServiceShareBasedCompensationCashReceivedFromExerciseOfStockOptions
|
400000000 | USD |
| CY2015 | us-gaap |
Employee Service Share Based Compensation Cash Received From Exercise Of Stock Options
EmployeeServiceShareBasedCompensationCashReceivedFromExerciseOfStockOptions
|
154000000 | USD |
| CY2016 | us-gaap |
Employee Service Share Based Compensation Cash Received From Exercise Of Stock Options
EmployeeServiceShareBasedCompensationCashReceivedFromExerciseOfStockOptions
|
448000000 | USD |
| CY2014 | us-gaap |
Employee Service Share Based Compensation Tax Benefit From Compensation Expense
EmployeeServiceShareBasedCompensationTaxBenefitFromCompensationExpense
|
10000000 | USD |
| CY2015 | us-gaap |
Employee Service Share Based Compensation Tax Benefit From Compensation Expense
EmployeeServiceShareBasedCompensationTaxBenefitFromCompensationExpense
|
2000000 | USD |
| CY2016 | us-gaap |
Employee Service Share Based Compensation Tax Benefit From Compensation Expense
EmployeeServiceShareBasedCompensationTaxBenefitFromCompensationExpense
|
1000000 | USD |
| CY2014 | us-gaap |
Employee Service Share Based Compensation Tax Benefit Realized From Exercise Of Stock Options
EmployeeServiceShareBasedCompensationTaxBenefitRealizedFromExerciseOfStockOptions
|
48000000 | USD |
| CY2015 | us-gaap |
Employee Service Share Based Compensation Tax Benefit Realized From Exercise Of Stock Options
EmployeeServiceShareBasedCompensationTaxBenefitRealizedFromExerciseOfStockOptions
|
19000000 | USD |
| CY2016 | us-gaap |
Employee Service Share Based Compensation Tax Benefit Realized From Exercise Of Stock Options
EmployeeServiceShareBasedCompensationTaxBenefitRealizedFromExerciseOfStockOptions
|
46000000 | USD |
| CY2015Q4 | us-gaap |
Energy Marketing Contract Liabilities Current
EnergyMarketingContractLiabilitiesCurrent
|
0 | USD |
| CY2016Q4 | us-gaap |
Energy Marketing Contract Liabilities Current
EnergyMarketingContractLiabilitiesCurrent
|
597000000 | USD |
| CY2015Q4 | us-gaap |
Energy Marketing Contracts Assets Current
EnergyMarketingContractsAssetsCurrent
|
0 | USD |
| CY2016Q4 | us-gaap |
Energy Marketing Contracts Assets Current
EnergyMarketingContractsAssetsCurrent
|
623000000 | USD |
| CY2015Q4 | us-gaap |
Energy Related Inventory Natural Gas In Storage
EnergyRelatedInventoryNaturalGasInStorage
|
0 | USD |
| CY2016Q4 | us-gaap |
Energy Related Inventory Natural Gas In Storage
EnergyRelatedInventoryNaturalGasInStorage
|
631000000 | USD |
| CY2015Q4 | us-gaap |
Energy Related Inventory Other Fossil Fuel
EnergyRelatedInventoryOtherFossilFuel
|
868000000 | USD |
| CY2016Q4 | us-gaap |
Energy Related Inventory Other Fossil Fuel
EnergyRelatedInventoryOtherFossilFuel
|
689000000 | USD |
| CY2015Q4 | us-gaap |
Equity Method Investments
EquityMethodInvestments
|
6000000 | USD |
| CY2016Q4 | us-gaap |
Equity Method Investments
EquityMethodInvestments
|
1549000000 | USD |
| CY2014 | us-gaap |
Federal Income Tax Expense Benefit Continuing Operations
FederalIncomeTaxExpenseBenefitContinuingOperations
|
870000000 | USD |
| CY2015 | us-gaap |
Federal Income Tax Expense Benefit Continuing Operations
FederalIncomeTaxExpenseBenefitContinuingOperations
|
1089000000 | USD |
| CY2016 | us-gaap |
Federal Income Tax Expense Benefit Continuing Operations
FederalIncomeTaxExpenseBenefitContinuingOperations
|
842000000 | USD |
| CY2015Q4 | us-gaap |
Finite Lived Intangible Assets Accumulated Amortization
FiniteLivedIntangibleAssetsAccumulatedAmortization
|
12000000 | USD |
| CY2016Q4 | us-gaap |
Finite Lived Intangible Assets Accumulated Amortization
FiniteLivedIntangibleAssetsAccumulatedAmortization
|
62000000 | USD |
| CY2016Q4 | us-gaap |
Finite Lived Intangible Assets Amortization Expense Next Twelve Months
FiniteLivedIntangibleAssetsAmortizationExpenseNextTwelveMonths
|
108000000 | USD |
| CY2016Q4 | us-gaap |
Finite Lived Intangible Assets Amortization Expense Year Five
FiniteLivedIntangibleAssetsAmortizationExpenseYearFive
|
56000000 | USD |
| CY2016Q4 | us-gaap |
Finite Lived Intangible Assets Amortization Expense Year Four
FiniteLivedIntangibleAssetsAmortizationExpenseYearFour
|
63000000 | USD |
| CY2016Q4 | us-gaap |
Finite Lived Intangible Assets Amortization Expense Year Three
FiniteLivedIntangibleAssetsAmortizationExpenseYearThree
|
74000000 | USD |
| CY2016Q4 | us-gaap |
Finite Lived Intangible Assets Amortization Expense Year Two
FiniteLivedIntangibleAssetsAmortizationExpenseYearTwo
|
93000000 | USD |
| CY2016Q4 | us-gaap |
Finite Lived Intangible Assets Gross
FiniteLivedIntangibleAssetsGross
|
957000000 | USD |
| CY2016Q4 | us-gaap |
Finite Lived Intangible Assets Net
FiniteLivedIntangibleAssetsNet
|
895000000 | USD |
| CY2015Q4 | us-gaap |
Goodwill
Goodwill
|
2000000 | USD |
| CY2016Q4 | us-gaap |
Goodwill
Goodwill
|
6251000000 | USD |
| CY2014 | us-gaap |
Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest
IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest
|
3008000000 | USD |
| CY2015 | us-gaap |
Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest
IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest
|
3629000000 | USD |
| CY2016 | us-gaap |
Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest
IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest
|
3480000000 | USD |
| us-gaap |
Income Loss From Equity Method Investments
IncomeLossFromEquityMethodInvestments
|
15000000 | USD | |
| CY2014 | us-gaap |
Income Loss From Equity Method Investments
IncomeLossFromEquityMethodInvestments
|
0 | USD |
| CY2015 | us-gaap |
Income Loss From Equity Method Investments
IncomeLossFromEquityMethodInvestments
|
0 | USD |
| CY2016 | us-gaap |
Income Loss From Equity Method Investments
IncomeLossFromEquityMethodInvestments
|
59000000 | USD |
| CY2014 | us-gaap |
Income Tax Expense Benefit
IncomeTaxExpenseBenefit
|
977000000 | USD |
| CY2015 | us-gaap |
Income Tax Expense Benefit
IncomeTaxExpenseBenefit
|
1194000000 | USD |
| CY2016 | us-gaap |
Income Tax Expense Benefit
IncomeTaxExpenseBenefit
|
951000000 | USD |
| CY2014 | us-gaap |
Income Taxes Paid Net
IncomeTaxesPaidNet
|
272000000 | USD |
| CY2015 | us-gaap |
Income Taxes Paid Net
IncomeTaxesPaidNet
|
-9000000 | USD |
| CY2016 | us-gaap |
Income Taxes Paid Net
IncomeTaxesPaidNet
|
-148000000 | USD |
| CY2015Q4 | us-gaap |
Income Taxes Receivable
IncomeTaxesReceivable
|
144000000 | USD |
| CY2016Q4 | us-gaap |
Income Taxes Receivable
IncomeTaxesReceivable
|
544000000 | USD |
| CY2015Q4 | us-gaap |
Income Taxes Receivable Noncurrent
IncomeTaxesReceivableNoncurrent
|
413000000 | USD |
| CY2016Q4 | us-gaap |
Income Taxes Receivable Noncurrent
IncomeTaxesReceivableNoncurrent
|
11000000 | USD |
| CY2014 | us-gaap |
Increase Decrease In Accounts Payable
IncreaseDecreaseInAccountsPayable
|
267000000 | USD |
| CY2015 | us-gaap |
Increase Decrease In Accounts Payable
IncreaseDecreaseInAccountsPayable
|
-353000000 | USD |
| CY2016 | us-gaap |
Increase Decrease In Accounts Payable
IncreaseDecreaseInAccountsPayable
|
301000000 | USD |
| CY2014 | us-gaap |
Increase Decrease In Accrued Salaries
IncreaseDecreaseInAccruedSalaries
|
255000000 | USD |
| CY2015 | us-gaap |
Increase Decrease In Accrued Salaries
IncreaseDecreaseInAccruedSalaries
|
-41000000 | USD |
| CY2016 | us-gaap |
Increase Decrease In Accrued Salaries
IncreaseDecreaseInAccruedSalaries
|
36000000 | USD |
| CY2014 | us-gaap |
Increase Decrease In Deposits
IncreaseDecreaseInDeposits
|
0 | USD |
| CY2015 | us-gaap |
Increase Decrease In Deposits
IncreaseDecreaseInDeposits
|
0 | USD |
| CY2016 | us-gaap |
Increase Decrease In Deposits
IncreaseDecreaseInDeposits
|
-102000000 | USD |
| CY2014 | us-gaap |
Increase Decrease In Fossil Fuel Inventories
IncreaseDecreaseInFossilFuelInventories
|
-408000000 | USD |
| CY2015 | us-gaap |
Increase Decrease In Fossil Fuel Inventories
IncreaseDecreaseInFossilFuelInventories
|
-61000000 | USD |
| CY2016 | us-gaap |
Increase Decrease In Fossil Fuel Inventories
IncreaseDecreaseInFossilFuelInventories
|
-178000000 | USD |
| CY2014 | us-gaap |
Increase Decrease In Income Taxes Receivable
IncreaseDecreaseInIncomeTaxesReceivable
|
0 | USD |
| CY2015 | us-gaap |
Increase Decrease In Income Taxes Receivable
IncreaseDecreaseInIncomeTaxesReceivable
|
413000000 | USD |
| CY2016 | us-gaap |
Increase Decrease In Income Taxes Receivable
IncreaseDecreaseInIncomeTaxesReceivable
|
122000000 | USD |
| CY2014 | us-gaap |
Increase Decrease In Other Operating Assets
IncreaseDecreaseInOtherOperatingAssets
|
57000000 | USD |
| CY2015 | us-gaap |
Increase Decrease In Other Operating Assets
IncreaseDecreaseInOtherOperatingAssets
|
108000000 | USD |
| CY2016 | us-gaap |
Increase Decrease In Other Operating Assets
IncreaseDecreaseInOtherOperatingAssets
|
174000000 | USD |
| CY2014 | us-gaap |
Increase Decrease In Other Operating Liabilities
IncreaseDecreaseInOtherOperatingLiabilities
|
109000000 | USD |
| CY2015 | us-gaap |
Increase Decrease In Other Operating Liabilities
IncreaseDecreaseInOtherOperatingLiabilities
|
98000000 | USD |
| CY2016 | us-gaap |
Increase Decrease In Other Operating Liabilities
IncreaseDecreaseInOtherOperatingLiabilities
|
215000000 | USD |
| CY2014 | us-gaap |
Increase Decrease In Raw Materials Packaging Materials And Supplies Inventories
IncreaseDecreaseInRawMaterialsPackagingMaterialsAndSuppliesInventories
|
67000000 | USD |
| CY2015 | us-gaap |
Increase Decrease In Raw Materials Packaging Materials And Supplies Inventories
IncreaseDecreaseInRawMaterialsPackagingMaterialsAndSuppliesInventories
|
44000000 | USD |
| CY2016 | us-gaap |
Increase Decrease In Raw Materials Packaging Materials And Supplies Inventories
IncreaseDecreaseInRawMaterialsPackagingMaterialsAndSuppliesInventories
|
31000000 | USD |
| CY2014 | us-gaap |
Increase Decrease In Receivables
IncreaseDecreaseInReceivables
|
352000000 | USD |
| CY2015 | us-gaap |
Increase Decrease In Receivables
IncreaseDecreaseInReceivables
|
-243000000 | USD |
| CY2016 | us-gaap |
Increase Decrease In Receivables
IncreaseDecreaseInReceivables
|
544000000 | USD |
| CY2014 | us-gaap |
Incremental Common Shares Attributable To Share Based Payment Arrangements
IncrementalCommonSharesAttributableToShareBasedPaymentArrangements
|
4000000 | shares |
| CY2015 | us-gaap |
Incremental Common Shares Attributable To Share Based Payment Arrangements
IncrementalCommonSharesAttributableToShareBasedPaymentArrangements
|
4000000 | shares |
| CY2016 | us-gaap |
Incremental Common Shares Attributable To Share Based Payment Arrangements
IncrementalCommonSharesAttributableToShareBasedPaymentArrangements
|
7000000 | shares |
| CY2016Q4 | us-gaap |
Intangible Assets Gross Excluding Goodwill
IntangibleAssetsGrossExcludingGoodwill
|
1032000000 | USD |
| CY2015Q4 | us-gaap |
Intangible Assets Net Excluding Goodwill
IntangibleAssetsNetExcludingGoodwill
|
317000000 | USD |
| CY2016Q4 | us-gaap |
Intangible Assets Net Excluding Goodwill
IntangibleAssetsNetExcludingGoodwill
|
970000000 | USD |
| CY2014 | us-gaap |
Interest And Debt Expense
InterestAndDebtExpense
|
835000000 | USD |
| CY2015 | us-gaap |
Interest And Debt Expense
InterestAndDebtExpense
|
840000000 | USD |
| CY2016 | us-gaap |
Interest And Debt Expense
InterestAndDebtExpense
|
1317000000 | USD |
| CY2014 | us-gaap |
Interest Paid Capitalized
InterestPaidCapitalized
|
111000000 | USD |
| CY2015 | us-gaap |
Interest Paid Capitalized
InterestPaidCapitalized
|
124000000 | USD |
| CY2016 | us-gaap |
Interest Paid Capitalized
InterestPaidCapitalized
|
125000000 | USD |
| CY2014 | us-gaap |
Interest Paid Net
InterestPaidNet
|
732000000 | USD |
| CY2015 | us-gaap |
Interest Paid Net
InterestPaidNet
|
809000000 | USD |
| CY2016 | us-gaap |
Interest Paid Net
InterestPaidNet
|
1100000000 | USD |
| CY2015Q4 | us-gaap |
Interest Payable Current
InterestPayableCurrent
|
249000000 | USD |
| CY2016Q4 | us-gaap |
Interest Payable Current
InterestPayableCurrent
|
518000000 | USD |
| CY2016Q4 | us-gaap |
Interest Rate Cash Flow Hedge Gain Loss To Be Reclassified During Next12 Months Net
InterestRateCashFlowHedgeGainLossToBeReclassifiedDuringNext12MonthsNet
|
-21000000 | USD |
| CY2014 | us-gaap |
Investment Income Interest And Dividend
InvestmentIncomeInterestAndDividend
|
19000000 | USD |
| CY2015 | us-gaap |
Investment Income Interest And Dividend
InvestmentIncomeInterestAndDividend
|
23000000 | USD |
| CY2016 | us-gaap |
Investment Income Interest And Dividend
InvestmentIncomeInterestAndDividend
|
20000000 | USD |
| CY2015Q4 | us-gaap |
Junior Subordinated Debenture Owed To Unconsolidated Subsidiary Trust Current
JuniorSubordinatedDebentureOwedToUnconsolidatedSubsidiaryTrustCurrent
|
206000000 | USD |
| CY2016Q4 | us-gaap |
Junior Subordinated Debenture Owed To Unconsolidated Subsidiary Trust Current
JuniorSubordinatedDebentureOwedToUnconsolidatedSubsidiaryTrustCurrent
|
206000000 | USD |
| CY2014 | us-gaap |
Lease And Rental Expense
LeaseAndRentalExpense
|
118000000 | USD |
| CY2015 | us-gaap |
Lease And Rental Expense
LeaseAndRentalExpense
|
130000000 | USD |
| CY2016 | us-gaap |
Lease And Rental Expense
LeaseAndRentalExpense
|
169000000 | USD |
| CY2015Q4 | us-gaap |
Leveraged Leases Balance Sheet Investment In Leveraged Leases Net
LeveragedLeasesBalanceSheetInvestmentInLeveragedLeasesNet
|
755000000 | USD |
| CY2016Q4 | us-gaap |
Leveraged Leases Balance Sheet Investment In Leveraged Leases Net
LeveragedLeasesBalanceSheetInvestmentInLeveragedLeasesNet
|
774000000 | USD |
| CY2015Q4 | us-gaap |
Liabilities
Liabilities
|
56175000000 | USD |
| CY2016Q4 | us-gaap |
Liabilities
Liabilities
|
82803000000 | USD |
| CY2015Q4 | us-gaap |
Liabilities And Stockholders Equity
LiabilitiesAndStockholdersEquity
|
78318000000 | USD |
| CY2016Q4 | us-gaap |
Liabilities And Stockholders Equity
LiabilitiesAndStockholdersEquity
|
109697000000 | USD |
| CY2015Q4 | us-gaap |
Liabilities Current
LiabilitiesCurrent
|
9129000000 | USD |
| CY2016Q4 | us-gaap |
Liabilities Current
LiabilitiesCurrent
|
12917000000 | USD |
| CY2016 | us-gaap |
Line Of Credit Facility Commitment Fee Percentage
LineOfCreditFacilityCommitmentFeePercentage
|
0.0025 | |
| CY2016Q4 | us-gaap |
Line Of Credit Facility Maximum Borrowing Capacity
LineOfCreditFacilityMaximumBorrowingCapacity
|
8443000000 | USD |
| CY2016Q4 | us-gaap |
Line Of Credit Facility Remaining Borrowing Capacity
LineOfCreditFacilityRemainingBorrowingCapacity
|
8273000000 | USD |
| CY2015Q4 | us-gaap |
Long Term Debt And Capital Lease Obligations
LongTermDebtAndCapitalLeaseObligations
|
24688000000 | USD |
| CY2016Q4 | us-gaap |
Long Term Debt And Capital Lease Obligations
LongTermDebtAndCapitalLeaseObligations
|
42629000000 | USD |
| CY2015Q4 | us-gaap |
Long Term Debt And Capital Lease Obligations Current
LongTermDebtAndCapitalLeaseObligationsCurrent
|
2674000000 | USD |
| CY2016Q4 | us-gaap |
Long Term Debt And Capital Lease Obligations Current
LongTermDebtAndCapitalLeaseObligationsCurrent
|
2587000000 | USD |
| CY2015Q4 | us-gaap |
Long Term Debt Maturities Repayments Of Principal After Year Five
LongTermDebtMaturitiesRepaymentsOfPrincipalAfterYearFive
|
10972000000 | USD |
| CY2016Q4 | us-gaap |
Long Term Debt Maturities Repayments Of Principal After Year Five
LongTermDebtMaturitiesRepaymentsOfPrincipalAfterYearFive
|
21797000000 | USD |
| CY2015Q4 | us-gaap |
Long Term Debt Maturities Repayments Of Principal In Next Twelve Months
LongTermDebtMaturitiesRepaymentsOfPrincipalInNextTwelveMonths
|
1995000000 | USD |
| CY2016Q4 | us-gaap |
Long Term Debt Maturities Repayments Of Principal In Next Twelve Months
LongTermDebtMaturitiesRepaymentsOfPrincipalInNextTwelveMonths
|
2019000000 | USD |
| CY2015Q4 | us-gaap |
Long Term Debt Maturities Repayments Of Principal In Year Five
LongTermDebtMaturitiesRepaymentsOfPrincipalInYearFive
|
200000000 | USD |
| CY2016Q4 | us-gaap |
Long Term Debt Maturities Repayments Of Principal In Year Five
LongTermDebtMaturitiesRepaymentsOfPrincipalInYearFive
|
2655000000 | USD |
| CY2015Q4 | us-gaap |
Long Term Debt Maturities Repayments Of Principal In Year Four
LongTermDebtMaturitiesRepaymentsOfPrincipalInYearFour
|
1327000000 | USD |
| CY2016Q4 | us-gaap |
Long Term Debt Maturities Repayments Of Principal In Year Four
LongTermDebtMaturitiesRepaymentsOfPrincipalInYearFour
|
1326000000 | USD |
| CY2015Q4 | us-gaap |
Long Term Debt Maturities Repayments Of Principal In Year Three
LongTermDebtMaturitiesRepaymentsOfPrincipalInYearThree
|
1176000000 | USD |
| CY2016Q4 | us-gaap |
Long Term Debt Maturities Repayments Of Principal In Year Three
LongTermDebtMaturitiesRepaymentsOfPrincipalInYearThree
|
3076000000 | USD |
| CY2015Q4 | us-gaap |
Long Term Debt Maturities Repayments Of Principal In Year Two
LongTermDebtMaturitiesRepaymentsOfPrincipalInYearTwo
|
1697000000 | USD |
| CY2016Q4 | us-gaap |
Long Term Debt Maturities Repayments Of Principal In Year Two
LongTermDebtMaturitiesRepaymentsOfPrincipalInYearTwo
|
2353000000 | USD |
| CY2015Q4 | us-gaap |
Long Term Investments
LongTermInvestments
|
2752000000 | USD |
| CY2016Q4 | us-gaap |
Long Term Investments
LongTermInvestments
|
11420000000 | USD |
| CY2015Q4 | us-gaap |
Longterm Pollution Control Bond Current
LongtermPollutionControlBondCurrent
|
4000000 | USD |
| CY2016Q4 | us-gaap |
Longterm Pollution Control Bond Current
LongtermPollutionControlBondCurrent
|
76000000 | USD |
| CY2015Q4 | us-gaap |
Minority Interest
MinorityInterest
|
1390000000 | USD |
| CY2016Q4 | us-gaap |
Minority Interest
MinorityInterest
|
1854000000 | USD |
| CY2015 | us-gaap |
Minority Interest Decrease From Distributions To Noncontrolling Interest Holders
MinorityInterestDecreaseFromDistributionsToNoncontrollingInterestHolders
|
18000000 | USD |
| CY2016 | us-gaap |
Minority Interest Decrease From Distributions To Noncontrolling Interest Holders
MinorityInterestDecreaseFromDistributionsToNoncontrollingInterestHolders
|
57000000 | USD |
| CY2016 | us-gaap |
Minority Interest Decrease From Redemptions
MinorityInterestDecreaseFromRedemptions
|
129000000 | USD |
| CY2014 | us-gaap |
Net Cash Provided By Used In Financing Activities
NetCashProvidedByUsedInFinancingActivities
|
644000000 | USD |
| CY2015 | us-gaap |
Net Cash Provided By Used In Financing Activities
NetCashProvidedByUsedInFinancingActivities
|
1700000000 | USD |
| CY2016 | us-gaap |
Net Cash Provided By Used In Financing Activities
NetCashProvidedByUsedInFinancingActivities
|
15725000000 | USD |
| CY2014 | us-gaap |
Net Cash Provided By Used In Investing Activities
NetCashProvidedByUsedInInvestingActivities
|
-6408000000 | USD |
| CY2015 | us-gaap |
Net Cash Provided By Used In Investing Activities
NetCashProvidedByUsedInInvestingActivities
|
-7280000000 | USD |
| CY2016 | us-gaap |
Net Cash Provided By Used In Investing Activities
NetCashProvidedByUsedInInvestingActivities
|
-20048000000 | USD |
| CY2014 | us-gaap |
Net Cash Provided By Used In Operating Activities
NetCashProvidedByUsedInOperatingActivities
|
5815000000 | USD |
| CY2015 | us-gaap |
Net Cash Provided By Used In Operating Activities
NetCashProvidedByUsedInOperatingActivities
|
6274000000 | USD |
| CY2016 | us-gaap |
Net Cash Provided By Used In Operating Activities
NetCashProvidedByUsedInOperatingActivities
|
4894000000 | USD |
| CY2014 | us-gaap |
Net Income Loss Attributable To Noncontrolling Interest
NetIncomeLossAttributableToNoncontrollingInterest
|
0 | USD |
| CY2015 | us-gaap |
Net Income Loss Attributable To Noncontrolling Interest
NetIncomeLossAttributableToNoncontrollingInterest
|
14000000 | USD |
| CY2016 | us-gaap |
Net Income Loss Attributable To Noncontrolling Interest
NetIncomeLossAttributableToNoncontrollingInterest
|
36000000 | USD |
| CY2014 | us-gaap |
Net Income Loss Available To Common Stockholders Basic
NetIncomeLossAvailableToCommonStockholdersBasic
|
1963000000 | USD |
| CY2015Q1 | us-gaap |
Net Income Loss Available To Common Stockholders Basic
NetIncomeLossAvailableToCommonStockholdersBasic
|
508000000 | USD |
| CY2015Q2 | us-gaap |
Net Income Loss Available To Common Stockholders Basic
NetIncomeLossAvailableToCommonStockholdersBasic
|
629000000 | USD |
| CY2015Q3 | us-gaap |
Net Income Loss Available To Common Stockholders Basic
NetIncomeLossAvailableToCommonStockholdersBasic
|
959000000 | USD |
| CY2015Q4 | us-gaap |
Net Income Loss Available To Common Stockholders Basic
NetIncomeLossAvailableToCommonStockholdersBasic
|
271000000 | USD |
| CY2015 | us-gaap |
Net Income Loss Available To Common Stockholders Basic
NetIncomeLossAvailableToCommonStockholdersBasic
|
2367000000 | USD |
| CY2016Q1 | us-gaap |
Net Income Loss Available To Common Stockholders Basic
NetIncomeLossAvailableToCommonStockholdersBasic
|
489000000 | USD |
| CY2016Q2 | us-gaap |
Net Income Loss Available To Common Stockholders Basic
NetIncomeLossAvailableToCommonStockholdersBasic
|
623000000 | USD |
| CY2016Q3 | us-gaap |
Net Income Loss Available To Common Stockholders Basic
NetIncomeLossAvailableToCommonStockholdersBasic
|
1139000000 | USD |
| CY2016Q4 | us-gaap |
Net Income Loss Available To Common Stockholders Basic
NetIncomeLossAvailableToCommonStockholdersBasic
|
197000000 | USD |
| CY2016 | us-gaap |
Net Income Loss Available To Common Stockholders Basic
NetIncomeLossAvailableToCommonStockholdersBasic
|
2448000000 | USD |
| CY2015Q4 | us-gaap |
Net Regulatory Assets
NetRegulatoryAssets
|
5564000000 | USD |
| CY2016Q4 | us-gaap |
Net Regulatory Assets
NetRegulatoryAssets
|
5866000000 | USD |
| CY2014 | us-gaap |
Noncontrolling Interest In Net Income Loss Other Noncontrolling Interests Redeemable
NoncontrollingInterestInNetIncomeLossOtherNoncontrollingInterestsRedeemable
|
-2000000 | USD |
| CY2015 | us-gaap |
Noncontrolling Interest In Net Income Loss Other Noncontrolling Interests Redeemable
NoncontrollingInterestInNetIncomeLossOtherNoncontrollingInterestsRedeemable
|
12000000 | USD |
| CY2016 | us-gaap |
Noncontrolling Interest In Net Income Loss Other Noncontrolling Interests Redeemable
NoncontrollingInterestInNetIncomeLossOtherNoncontrollingInterestsRedeemable
|
32000000 | USD |
| CY2014 | us-gaap |
Nonoperating Income Expense
NonoperatingIncomeExpense
|
-634000000 | USD |
| CY2015 | us-gaap |
Nonoperating Income Expense
NonoperatingIncomeExpense
|
-653000000 | USD |
| CY2016 | us-gaap |
Nonoperating Income Expense
NonoperatingIncomeExpense
|
-1149000000 | USD |
| CY2014 | us-gaap |
Operating Income Loss
OperatingIncomeLoss
|
3642000000 | USD |
| CY2015Q1 | us-gaap |
Operating Income Loss
OperatingIncomeLoss
|
957000000 | USD |
| CY2015Q2 | us-gaap |
Operating Income Loss
OperatingIncomeLoss
|
1098000000 | USD |
| CY2015Q3 | us-gaap |
Operating Income Loss
OperatingIncomeLoss
|
1649000000 | USD |
| CY2015Q4 | us-gaap |
Operating Income Loss
OperatingIncomeLoss
|
578000000 | USD |
| CY2015 | us-gaap |
Operating Income Loss
OperatingIncomeLoss
|
4282000000 | USD |
| CY2016Q1 | us-gaap |
Operating Income Loss
OperatingIncomeLoss
|
940000000 | USD |
| CY2016Q2 | us-gaap |
Operating Income Loss
OperatingIncomeLoss
|
1185000000 | USD |
| CY2016Q3 | us-gaap |
Operating Income Loss
OperatingIncomeLoss
|
1917000000 | USD |
| CY2016Q4 | us-gaap |
Operating Income Loss
OperatingIncomeLoss
|
587000000 | USD |
| CY2016 | us-gaap |
Operating Income Loss
OperatingIncomeLoss
|
4629000000 | USD |
| CY2016Q4 | us-gaap |
Operating Leases Future Minimum Payments Due
OperatingLeasesFutureMinimumPaymentsDue
|
1784000000 | USD |
| CY2016Q4 | us-gaap |
Operating Leases Future Minimum Payments Due Current
OperatingLeasesFutureMinimumPaymentsDueCurrent
|
152000000 | USD |
| CY2016Q4 | us-gaap |
Operating Leases Future Minimum Payments Due In Five Years
OperatingLeasesFutureMinimumPaymentsDueInFiveYears
|
90000000 | USD |
| CY2016Q4 | us-gaap |
Operating Leases Future Minimum Payments Due In Four Years
OperatingLeasesFutureMinimumPaymentsDueInFourYears
|
100000000 | USD |
| CY2016Q4 | us-gaap |
Operating Leases Future Minimum Payments Due In Three Years
OperatingLeasesFutureMinimumPaymentsDueInThreeYears
|
113000000 | USD |
| CY2016Q4 | us-gaap |
Operating Leases Future Minimum Payments Due In Two Years
OperatingLeasesFutureMinimumPaymentsDueInTwoYears
|
134000000 | USD |
| CY2016Q4 | us-gaap |
Operating Leases Future Minimum Payments Due Thereafter
OperatingLeasesFutureMinimumPaymentsDueThereafter
|
1195000000 | USD |
| CY2016Q4 | us-gaap |
Operating Loss Carryforwards
OperatingLossCarryforwards
|
3000000000 | USD |
| CY2015Q4 | us-gaap |
Other Assets Current
OtherAssetsCurrent
|
71000000 | USD |
| CY2016Q4 | us-gaap |
Other Assets Current
OtherAssetsCurrent
|
230000000 | USD |
| CY2015Q4 | us-gaap |
Other Assets Noncurrent
OtherAssetsNoncurrent
|
737000000 | USD |
| CY2016Q4 | us-gaap |
Other Assets Noncurrent
OtherAssetsNoncurrent
|
1395000000 | USD |
| CY2014 | us-gaap |
Other Comprehensive Income Defined Benefit Plans Net Unamortized Gain Loss Arising During Period Net Of Tax
OtherComprehensiveIncomeDefinedBenefitPlansNetUnamortizedGainLossArisingDuringPeriodNetOfTax
|
-51000000 | USD |
| CY2015 | us-gaap |
Other Comprehensive Income Defined Benefit Plans Net Unamortized Gain Loss Arising During Period Net Of Tax
OtherComprehensiveIncomeDefinedBenefitPlansNetUnamortizedGainLossArisingDuringPeriodNetOfTax
|
-2000000 | USD |
| CY2016 | us-gaap |
Other Comprehensive Income Defined Benefit Plans Net Unamortized Gain Loss Arising During Period Net Of Tax
OtherComprehensiveIncomeDefinedBenefitPlansNetUnamortizedGainLossArisingDuringPeriodNetOfTax
|
13000000 | USD |
| CY2014 | us-gaap |
Other Comprehensive Income Defined Benefit Plans Net Unamortized Gain Loss Arising During Period Tax
OtherComprehensiveIncomeDefinedBenefitPlansNetUnamortizedGainLossArisingDuringPeriodTax
|
-32000000 | USD |
| CY2015 | us-gaap |
Other Comprehensive Income Defined Benefit Plans Net Unamortized Gain Loss Arising During Period Tax
OtherComprehensiveIncomeDefinedBenefitPlansNetUnamortizedGainLossArisingDuringPeriodTax
|
-1000000 | USD |
| CY2016 | us-gaap |
Other Comprehensive Income Defined Benefit Plans Net Unamortized Gain Loss Arising During Period Tax
OtherComprehensiveIncomeDefinedBenefitPlansNetUnamortizedGainLossArisingDuringPeriodTax
|
10000000 | USD |
| CY2014 | us-gaap |
Other Comprehensive Income Loss Net Of Tax
OtherComprehensiveIncomeLossNetOfTax
|
-53000000 | USD |
| CY2015 | us-gaap |
Other Comprehensive Income Loss Net Of Tax
OtherComprehensiveIncomeLossNetOfTax
|
-2000000 | USD |
| CY2016 | us-gaap |
Other Comprehensive Income Loss Net Of Tax
OtherComprehensiveIncomeLossNetOfTax
|
-50000000 | USD |
| CY2014 | us-gaap |
Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent
OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent
|
-53000000 | USD |
| CY2015 | us-gaap |
Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent
OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent
|
-2000000 | USD |
| CY2016 | us-gaap |
Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent
OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent
|
-50000000 | USD |
| CY2014 | us-gaap |
Other Comprehensive Income Loss Reclassification Adjustment From Aoci On Derivatives Net Of Tax
OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIOnDerivativesNetOfTax
|
-5000000 | USD |
| CY2015 | us-gaap |
Other Comprehensive Income Loss Reclassification Adjustment From Aoci On Derivatives Net Of Tax
OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIOnDerivativesNetOfTax
|
-6000000 | USD |
| CY2016 | us-gaap |
Other Comprehensive Income Loss Reclassification Adjustment From Aoci On Derivatives Net Of Tax
OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIOnDerivativesNetOfTax
|
-69000000 | USD |
| CY2014 | us-gaap |
Other Comprehensive Income Loss Reclassification Adjustment From Aoci On Derivatives Tax
OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIOnDerivativesTax
|
-3000000 | USD |
| CY2015 | us-gaap |
Other Comprehensive Income Loss Reclassification Adjustment From Aoci On Derivatives Tax
OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIOnDerivativesTax
|
-4000000 | USD |
| CY2016 | us-gaap |
Other Comprehensive Income Loss Reclassification Adjustment From Aoci On Derivatives Tax
OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIOnDerivativesTax
|
-43000000 | USD |
| CY2014 | us-gaap |
Other Comprehensive Income Loss Reclassification Adjustment From Aoci Pension And Other Postretirement Benefit Plans For Net Gain Loss Net Of Tax
OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansForNetGainLossNetOfTax
|
-3000000 | USD |
| CY2015 | us-gaap |
Other Comprehensive Income Loss Reclassification Adjustment From Aoci Pension And Other Postretirement Benefit Plans For Net Gain Loss Net Of Tax
OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansForNetGainLossNetOfTax
|
-7000000 | USD |
| CY2016 | us-gaap |
Other Comprehensive Income Loss Reclassification Adjustment From Aoci Pension And Other Postretirement Benefit Plans For Net Gain Loss Net Of Tax
OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansForNetGainLossNetOfTax
|
-4000000 | USD |
| CY2014 | us-gaap |
Other Comprehensive Income Loss Reclassification Adjustment From Aoci Pension And Other Postretirement Benefit Plans For Net Gain Loss Tax
OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansForNetGainLossTax
|
-2000000 | USD |
| CY2015 | us-gaap |
Other Comprehensive Income Loss Reclassification Adjustment From Aoci Pension And Other Postretirement Benefit Plans For Net Gain Loss Tax
OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansForNetGainLossTax
|
-4000000 | USD |
| CY2016 | us-gaap |
Other Comprehensive Income Loss Reclassification Adjustment From Aoci Pension And Other Postretirement Benefit Plans For Net Gain Loss Tax
OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansForNetGainLossTax
|
-3000000 | USD |
| CY2014 | us-gaap |
Other Comprehensive Income Unrealized Gain Loss On Derivatives Arising During Period Net Of Tax
OtherComprehensiveIncomeUnrealizedGainLossOnDerivativesArisingDuringPeriodNetOfTax
|
-10000000 | USD |
| CY2015 | us-gaap |
Other Comprehensive Income Unrealized Gain Loss On Derivatives Arising During Period Net Of Tax
OtherComprehensiveIncomeUnrealizedGainLossOnDerivativesArisingDuringPeriodNetOfTax
|
-13000000 | USD |
| CY2016 | us-gaap |
Other Comprehensive Income Unrealized Gain Loss On Derivatives Arising During Period Net Of Tax
OtherComprehensiveIncomeUnrealizedGainLossOnDerivativesArisingDuringPeriodNetOfTax
|
-136000000 | USD |
| CY2014 | us-gaap |
Other Comprehensive Income Unrealized Gain Loss On Derivatives Arising During Period Tax
OtherComprehensiveIncomeUnrealizedGainLossOnDerivativesArisingDuringPeriodTax
|
-6000000 | USD |
| CY2015 | us-gaap |
Other Comprehensive Income Unrealized Gain Loss On Derivatives Arising During Period Tax
OtherComprehensiveIncomeUnrealizedGainLossOnDerivativesArisingDuringPeriodTax
|
-8000000 | USD |
| CY2016 | us-gaap |
Other Comprehensive Income Unrealized Gain Loss On Derivatives Arising During Period Tax
OtherComprehensiveIncomeUnrealizedGainLossOnDerivativesArisingDuringPeriodTax
|
-84000000 | USD |
| CY2014 | us-gaap |
Other Cost Of Operating Revenue
OtherCostOfOperatingRevenue
|
0 | USD |
| CY2015 | us-gaap |
Other Cost Of Operating Revenue
OtherCostOfOperatingRevenue
|
0 | USD |
| CY2016 | us-gaap |
Other Cost Of Operating Revenue
OtherCostOfOperatingRevenue
|
260000000 | USD |
| CY2015Q4 | us-gaap |
Other Inventory Supplies
OtherInventorySupplies
|
1061000000 | USD |
| CY2016Q4 | us-gaap |
Other Inventory Supplies
OtherInventorySupplies
|
1462000000 | USD |
| CY2015Q4 | us-gaap |
Other Liabilities Current
OtherLiabilitiesCurrent
|
484000000 | USD |
| CY2016Q4 | us-gaap |
Other Liabilities Current
OtherLiabilitiesCurrent
|
683000000 | USD |
| CY2015Q4 | us-gaap |
Other Liabilities Noncurrent
OtherLiabilitiesNoncurrent
|
678000000 | USD |
| CY2016Q4 | us-gaap |
Other Liabilities Noncurrent
OtherLiabilitiesNoncurrent
|
880000000 | USD |
| CY2015Q4 | us-gaap |
Other Long Term Debt
OtherLongTermDebt
|
6808000000 | USD |
| CY2016Q4 | us-gaap |
Other Long Term Debt
OtherLongTermDebt
|
9404000000 | USD |
| CY2015Q4 | us-gaap |
Other Long Term Debt Current
OtherLongTermDebtCurrent
|
829000000 | USD |
| CY2016Q4 | us-gaap |
Other Long Term Debt Current
OtherLongTermDebtCurrent
|
485000000 | USD |
| CY2015Q4 | us-gaap |
Other Long Term Investments
OtherLongTermInvestments
|
160000000 | USD |
| CY2016Q4 | us-gaap |
Other Long Term Investments
OtherLongTermInvestments
|
270000000 | USD |
| CY2014 | us-gaap |
Other Noncash Income Expense
OtherNoncashIncomeExpense
|
-13000000 | USD |
| CY2015 | us-gaap |
Other Noncash Income Expense
OtherNoncashIncomeExpense
|
33000000 | USD |
| CY2016 | us-gaap |
Other Noncash Income Expense
OtherNoncashIncomeExpense
|
36000000 | USD |
| CY2014 | us-gaap |
Other Nonoperating Income Expense
OtherNonoperatingIncomeExpense
|
-44000000 | USD |
| CY2015 | us-gaap |
Other Nonoperating Income Expense
OtherNonoperatingIncomeExpense
|
-39000000 | USD |
| CY2016 | us-gaap |
Other Nonoperating Income Expense
OtherNonoperatingIncomeExpense
|
-93000000 | USD |
| CY2014 | us-gaap |
Other Sales Revenue Net
OtherSalesRevenueNet
|
61000000 | USD |
| CY2015 | us-gaap |
Other Sales Revenue Net
OtherSalesRevenueNet
|
47000000 | USD |
| CY2016 | us-gaap |
Other Sales Revenue Net
OtherSalesRevenueNet
|
442000000 | USD |
| CY2014 | us-gaap |
Payments For Proceeds From Other Investing Activities
PaymentsForProceedsFromOtherInvestingActivities
|
17000000 | USD |
| CY2015 | us-gaap |
Payments For Proceeds From Other Investing Activities
PaymentsForProceedsFromOtherInvestingActivities
|
-87000000 | USD |
| CY2016 | us-gaap |
Payments For Proceeds From Other Investing Activities
PaymentsForProceedsFromOtherInvestingActivities
|
108000000 | USD |
| CY2014 | us-gaap |
Payments For Proceeds From Removal Costs
PaymentsForProceedsFromRemovalCosts
|
170000000 | USD |
| CY2015 | us-gaap |
Payments For Proceeds From Removal Costs
PaymentsForProceedsFromRemovalCosts
|
167000000 | USD |
| CY2016 | us-gaap |
Payments For Proceeds From Removal Costs
PaymentsForProceedsFromRemovalCosts
|
245000000 | USD |
| CY2014 | us-gaap |
Payments For Repurchase Of Common Stock
PaymentsForRepurchaseOfCommonStock
|
5000000 | USD |
| CY2015 | us-gaap |
Payments For Repurchase Of Common Stock
PaymentsForRepurchaseOfCommonStock
|
115000000 | USD |
| CY2016 | us-gaap |
Payments For Repurchase Of Common Stock
PaymentsForRepurchaseOfCommonStock
|
0 | USD |
| CY2014 | us-gaap |
Payments For Repurchase Of Preferred Stock And Preference Stock
PaymentsForRepurchaseOfPreferredStockAndPreferenceStock
|
0 | USD |
| CY2015 | us-gaap |
Payments For Repurchase Of Preferred Stock And Preference Stock
PaymentsForRepurchaseOfPreferredStockAndPreferenceStock
|
412000000 | USD |
| CY2016 | us-gaap |
Payments For Repurchase Of Preferred Stock And Preference Stock
PaymentsForRepurchaseOfPreferredStockAndPreferenceStock
|
0 | USD |
| CY2014 | us-gaap |
Payments Of Dividends Common Stock
PaymentsOfDividendsCommonStock
|
1866000000 | USD |
| CY2015 | us-gaap |
Payments Of Dividends Common Stock
PaymentsOfDividendsCommonStock
|
1959000000 | USD |
| CY2016 | us-gaap |
Payments Of Dividends Common Stock
PaymentsOfDividendsCommonStock
|
2104000000 | USD |
| CY2014 | us-gaap |
Payments To Acquire Businesses Net Of Cash Acquired
PaymentsToAcquireBusinessesNetOfCashAcquired
|
731000000 | USD |
| CY2015 | us-gaap |
Payments To Acquire Businesses Net Of Cash Acquired
PaymentsToAcquireBusinessesNetOfCashAcquired
|
1719000000 | USD |
| CY2016 | us-gaap |
Payments To Acquire Businesses Net Of Cash Acquired
PaymentsToAcquireBusinessesNetOfCashAcquired
|
10689000000 | USD |
| CY2014 | us-gaap |
Payments To Acquire Equity Method Investments
PaymentsToAcquireEquityMethodInvestments
|
0 | USD |
| CY2015 | us-gaap |
Payments To Acquire Equity Method Investments
PaymentsToAcquireEquityMethodInvestments
|
0 | USD |
| CY2016 | us-gaap |
Payments To Acquire Equity Method Investments
PaymentsToAcquireEquityMethodInvestments
|
1444000000 | USD |
| CY2014 | us-gaap |
Payments To Acquire Productive Assets
PaymentsToAcquireProductiveAssets
|
6522000000 | USD |
| CY2015 | us-gaap |
Payments To Acquire Productive Assets
PaymentsToAcquireProductiveAssets
|
6169000000 | USD |
| CY2016 | us-gaap |
Payments To Acquire Productive Assets
PaymentsToAcquireProductiveAssets
|
7624000000 | USD |
| CY2014 | us-gaap |
Payments To Acquire Property Plant And Equipment
PaymentsToAcquirePropertyPlantAndEquipment
|
5246000000 | USD |
| CY2015 | us-gaap |
Payments To Acquire Property Plant And Equipment
PaymentsToAcquirePropertyPlantAndEquipment
|
5674000000 | USD |
| CY2016 | us-gaap |
Payments To Acquire Property Plant And Equipment
PaymentsToAcquirePropertyPlantAndEquipment
|
7310000000 | USD |
| CY2014 | us-gaap |
Payments To Invest In Decommissioning Fund
PaymentsToInvestInDecommissioningFund
|
916000000 | USD |
| CY2015 | us-gaap |
Payments To Invest In Decommissioning Fund
PaymentsToInvestInDecommissioningFund
|
1424000000 | USD |
| CY2016 | us-gaap |
Payments To Invest In Decommissioning Fund
PaymentsToInvestInDecommissioningFund
|
1160000000 | USD |
| CY2014 | us-gaap |
Payments To Minority Shareholders
PaymentsToMinorityShareholders
|
1000000 | USD |
| CY2015 | us-gaap |
Payments To Minority Shareholders
PaymentsToMinorityShareholders
|
18000000 | USD |
| CY2016 | us-gaap |
Payments To Minority Shareholders
PaymentsToMinorityShareholders
|
72000000 | USD |
| CY2014 | us-gaap |
Pension And Other Postretirement Benefit Contributions
PensionAndOtherPostretirementBenefitContributions
|
506000000 | USD |
| CY2015 | us-gaap |
Pension And Other Postretirement Benefit Contributions
PensionAndOtherPostretirementBenefitContributions
|
7000000 | USD |
| CY2016 | us-gaap |
Pension And Other Postretirement Benefit Contributions
PensionAndOtherPostretirementBenefitContributions
|
1029000000 | USD |
| CY2014 | us-gaap |
Pension And Other Postretirement Benefit Expense
PensionAndOtherPostretirementBenefitExpense
|
-9000000 | USD |
| CY2015 | us-gaap |
Pension And Other Postretirement Benefit Expense
PensionAndOtherPostretirementBenefitExpense
|
83000000 | USD |
| CY2016 | us-gaap |
Pension And Other Postretirement Benefit Expense
PensionAndOtherPostretirementBenefitExpense
|
-65000000 | USD |
| CY2015Q4 | us-gaap |
Pension And Other Postretirement Defined Benefit Plans Liabilities Noncurrent
PensionAndOtherPostretirementDefinedBenefitPlansLiabilitiesNoncurrent
|
2582000000 | USD |
| CY2016Q4 | us-gaap |
Pension And Other Postretirement Defined Benefit Plans Liabilities Noncurrent
PensionAndOtherPostretirementDefinedBenefitPlansLiabilitiesNoncurrent
|
2299000000 | USD |
| CY2014 | us-gaap |
Preferred Stock Dividends Income Statement Impact
PreferredStockDividendsIncomeStatementImpact
|
68000000 | USD |
| CY2015 | us-gaap |
Preferred Stock Dividends Income Statement Impact
PreferredStockDividendsIncomeStatementImpact
|
54000000 | USD |
| CY2016 | us-gaap |
Preferred Stock Dividends Income Statement Impact
PreferredStockDividendsIncomeStatementImpact
|
45000000 | USD |
| CY2015Q4 | us-gaap |
Prepaid Expense Current
PrepaidExpenseCurrent
|
495000000 | USD |
| CY2016Q4 | us-gaap |
Prepaid Expense Current
PrepaidExpenseCurrent
|
364000000 | USD |
| CY2014 | us-gaap |
Proceeds From Decommissioning Fund
ProceedsFromDecommissioningFund
|
914000000 | USD |
| CY2015 | us-gaap |
Proceeds From Decommissioning Fund
ProceedsFromDecommissioningFund
|
1418000000 | USD |
| CY2016 | us-gaap |
Proceeds From Decommissioning Fund
ProceedsFromDecommissioningFund
|
1154000000 | USD |
| CY2014 | us-gaap |
Proceeds From Issuance Of Common Stock
ProceedsFromIssuanceOfCommonStock
|
806000000 | USD |
| CY2015 | us-gaap |
Proceeds From Issuance Of Common Stock
ProceedsFromIssuanceOfCommonStock
|
256000000 | USD |
| CY2016 | us-gaap |
Proceeds From Issuance Of Common Stock
ProceedsFromIssuanceOfCommonStock
|
3758000000 | USD |
| CY2014 | us-gaap |
Proceeds From Issuance Of Long Term Debt And Capital Securities Net
ProceedsFromIssuanceOfLongTermDebtAndCapitalSecuritiesNet
|
3169000000 | USD |
| CY2015 | us-gaap |
Proceeds From Issuance Of Long Term Debt And Capital Securities Net
ProceedsFromIssuanceOfLongTermDebtAndCapitalSecuritiesNet
|
7029000000 | USD |
| CY2016 | us-gaap |
Proceeds From Issuance Of Long Term Debt And Capital Securities Net
ProceedsFromIssuanceOfLongTermDebtAndCapitalSecuritiesNet
|
16368000000 | USD |
| CY2016 | us-gaap |
Proceeds From Issuance Of Shares Under Incentive And Share Based Compensation Plans Including Stock Options
ProceedsFromIssuanceOfSharesUnderIncentiveAndShareBasedCompensationPlansIncludingStockOptions
|
874000000 | USD |
| CY2014 | us-gaap |
Proceeds From Minority Shareholders
ProceedsFromMinorityShareholders
|
8000000 | USD |
| CY2015 | us-gaap |
Proceeds From Minority Shareholders
ProceedsFromMinorityShareholders
|
341000000 | USD |
| CY2016 | us-gaap |
Proceeds From Minority Shareholders
ProceedsFromMinorityShareholders
|
682000000 | USD |
| CY2014 | us-gaap |
Proceeds From Payments For Other Financing Activities
ProceedsFromPaymentsForOtherFinancingActivities
|
-100000000 | USD |
| CY2015 | us-gaap |
Proceeds From Payments For Other Financing Activities
ProceedsFromPaymentsForOtherFinancingActivities
|
-116000000 | USD |
| CY2016 | us-gaap |
Proceeds From Payments For Other Financing Activities
ProceedsFromPaymentsForOtherFinancingActivities
|
-383000000 | USD |
| CY2014 | us-gaap |
Proceeds From Repayments Of Short Term Debt
ProceedsFromRepaymentsOfShortTermDebt
|
-676000000 | USD |
| CY2015 | us-gaap |
Proceeds From Repayments Of Short Term Debt
ProceedsFromRepaymentsOfShortTermDebt
|
73000000 | USD |
| CY2016 | us-gaap |
Proceeds From Repayments Of Short Term Debt
ProceedsFromRepaymentsOfShortTermDebt
|
1228000000 | USD |
| CY2014 | us-gaap |
Proceeds From Short Term Debt
ProceedsFromShortTermDebt
|
0 | USD |
| CY2015 | us-gaap |
Proceeds From Short Term Debt
ProceedsFromShortTermDebt
|
755000000 | USD |
| CY2016 | us-gaap |
Proceeds From Short Term Debt
ProceedsFromShortTermDebt
|
0 | USD |
| CY2014 | us-gaap |
Profit Loss
ProfitLoss
|
2031000000 | USD |
| CY2015 | us-gaap |
Profit Loss
ProfitLoss
|
2435000000 | USD |
| CY2016 | us-gaap |
Profit Loss
ProfitLoss
|
2529000000 | USD |
| CY2015Q4 | us-gaap |
Property Plant And Equipment Gross
PropertyPlantAndEquipmentGross
|
75118000000 | USD |
| CY2016Q4 | us-gaap |
Property Plant And Equipment Gross
PropertyPlantAndEquipmentGross
|
98416000000 | USD |
| CY2015Q4 | us-gaap |
Property Plant And Equipment Net
PropertyPlantAndEquipmentNet
|
61114000000 | USD |
| CY2016Q4 | us-gaap |
Property Plant And Equipment Net
PropertyPlantAndEquipmentNet
|
78446000000 | USD |
| CY2014 | us-gaap |
Public Utilities Allowance For Funds Used During Construction Capitalized Cost Of Equity
PublicUtilitiesAllowanceForFundsUsedDuringConstructionCapitalizedCostOfEquity
|
245000000 | USD |
| CY2015 | us-gaap |
Public Utilities Allowance For Funds Used During Construction Capitalized Cost Of Equity
PublicUtilitiesAllowanceForFundsUsedDuringConstructionCapitalizedCostOfEquity
|
226000000 | USD |
| CY2016 | us-gaap |
Public Utilities Allowance For Funds Used During Construction Capitalized Cost Of Equity
PublicUtilitiesAllowanceForFundsUsedDuringConstructionCapitalizedCostOfEquity
|
202000000 | USD |
| CY2015Q4 | us-gaap |
Public Utilities Property Plant And Equipment Amount Of Acquisition Adjustments1
PublicUtilitiesPropertyPlantAndEquipmentAmountOfAcquisitionAdjustments1
|
123000000 | USD |
| CY2016Q4 | us-gaap |
Public Utilities Property Plant And Equipment Amount Of Acquisition Adjustments1
PublicUtilitiesPropertyPlantAndEquipmentAmountOfAcquisitionAdjustments1
|
126000000 | USD |
| CY2015Q4 | us-gaap |
Public Utilities Property Plant And Equipment Distribution
PublicUtilitiesPropertyPlantAndEquipmentDistribution
|
17670000000 | USD |
| CY2016Q4 | us-gaap |
Public Utilities Property Plant And Equipment Distribution
PublicUtilitiesPropertyPlantAndEquipmentDistribution
|
18418000000 | USD |
| CY2015Q4 | us-gaap |
Public Utilities Property Plant And Equipment Generation Or Processing
PublicUtilitiesPropertyPlantAndEquipmentGenerationOrProcessing
|
41648000000 | USD |
| CY2016Q4 | us-gaap |
Public Utilities Property Plant And Equipment Generation Or Processing
PublicUtilitiesPropertyPlantAndEquipmentGenerationOrProcessing
|
48836000000 | USD |
| CY2015Q4 | us-gaap |
Public Utilities Property Plant And Equipment Other Property Plant And Equipment
PublicUtilitiesPropertyPlantAndEquipmentOtherPropertyPlantAndEquipment
|
756000000 | USD |
| CY2016Q4 | us-gaap |
Public Utilities Property Plant And Equipment Other Property Plant And Equipment
PublicUtilitiesPropertyPlantAndEquipmentOtherPropertyPlantAndEquipment
|
3255000000 | USD |
| CY2015Q4 | us-gaap |
Public Utilities Property Plant And Equipment Plant In Service
PublicUtilitiesPropertyPlantAndEquipmentPlantInService
|
75118000000 | USD |
| CY2016Q4 | us-gaap |
Public Utilities Property Plant And Equipment Plant In Service
PublicUtilitiesPropertyPlantAndEquipmentPlantInService
|
98416000000 | USD |
| CY2015Q4 | us-gaap |
Public Utilities Property Plant And Equipment Transmission
PublicUtilitiesPropertyPlantAndEquipmentTransmission
|
10544000000 | USD |
| CY2016Q4 | us-gaap |
Public Utilities Property Plant And Equipment Transmission
PublicUtilitiesPropertyPlantAndEquipmentTransmission
|
11156000000 | USD |
| CY2015Q4 | us-gaap |
Redeemable Noncontrolling Interest Equity Carrying Amount
RedeemableNoncontrollingInterestEquityCarryingAmount
|
43000000 | USD |
| CY2016Q4 | us-gaap |
Redeemable Noncontrolling Interest Equity Carrying Amount
RedeemableNoncontrollingInterestEquityCarryingAmount
|
164000000 | USD |
| CY2014 | us-gaap |
Repayments Of Long Term Debt And Capital Securities
RepaymentsOfLongTermDebtAndCapitalSecurities
|
816000000 | USD |
| CY2015 | us-gaap |
Repayments Of Long Term Debt And Capital Securities
RepaymentsOfLongTermDebtAndCapitalSecurities
|
3604000000 | USD |
| CY2016 | us-gaap |
Repayments Of Long Term Debt And Capital Securities
RepaymentsOfLongTermDebtAndCapitalSecurities
|
3145000000 | USD |
| CY2014 | us-gaap |
Repayments Of Short Term Debt
RepaymentsOfShortTermDebt
|
0 | USD |
| CY2015 | us-gaap |
Repayments Of Short Term Debt
RepaymentsOfShortTermDebt
|
255000000 | USD |
| CY2016 | us-gaap |
Repayments Of Short Term Debt
RepaymentsOfShortTermDebt
|
478000000 | USD |
| CY2015Q4 | us-gaap |
Retained Earnings Accumulated Deficit
RetainedEarningsAccumulatedDeficit
|
10010000000 | USD |
| CY2016Q4 | us-gaap |
Retained Earnings Accumulated Deficit
RetainedEarningsAccumulatedDeficit
|
10356000000 | USD |
| CY2014 | us-gaap |
Revenues
Revenues
|
18467000000 | USD |
| CY2015Q1 | us-gaap |
Revenues
Revenues
|
4183000000 | USD |
| CY2015Q2 | us-gaap |
Revenues
Revenues
|
4337000000 | USD |
| CY2015Q3 | us-gaap |
Revenues
Revenues
|
5401000000 | USD |
| CY2015Q4 | us-gaap |
Revenues
Revenues
|
3568000000 | USD |
| CY2015 | us-gaap |
Revenues
Revenues
|
17489000000 | USD |
| CY2016Q1 | us-gaap |
Revenues
Revenues
|
3992000000 | USD |
| CY2016Q2 | us-gaap |
Revenues
Revenues
|
4459000000 | USD |
| CY2016Q3 | us-gaap |
Revenues
Revenues
|
6264000000 | USD |
| CY2016Q4 | us-gaap |
Revenues
Revenues
|
5181000000 | USD |
| CY2016 | us-gaap |
Revenues
Revenues
|
19896000000 | USD |
| CY2015Q4 | us-gaap |
Senior Notes
SeniorNotes
|
19100000000 | USD |
| CY2016Q4 | us-gaap |
Senior Notes
SeniorNotes
|
33000000000 | USD |
| CY2015Q4 | us-gaap |
Senior Notes Current
SeniorNotesCurrent
|
1810000000 | USD |
| CY2016Q4 | us-gaap |
Senior Notes Current
SeniorNotesCurrent
|
1995000000 | USD |
| CY2016Q4 | us-gaap |
Share Based Compensation Arrangement By Share Based Payment Award Options Exercisable Number
ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableNumber
|
21133320 | shares |
| CY2016Q4 | us-gaap |
Share Based Compensation Arrangement By Share Based Payment Award Options Exercisable Weighted Average Exercise Price
ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableWeightedAverageExercisePrice
|
41.26 | |
| CY2014 | us-gaap |
Share Based Compensation Arrangement By Share Based Payment Award Options Exercises In Period Total Intrinsic Value
ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisesInPeriodTotalIntrinsicValue
|
125000000 | USD |
| CY2015 | us-gaap |
Share Based Compensation Arrangement By Share Based Payment Award Options Exercises In Period Total Intrinsic Value
ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisesInPeriodTotalIntrinsicValue
|
48000000 | USD |
| CY2016 | us-gaap |
Share Based Compensation Arrangement By Share Based Payment Award Options Exercises In Period Total Intrinsic Value
ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisesInPeriodTotalIntrinsicValue
|
120000000 | USD |
| CY2016 | us-gaap |
Share Based Compensation Arrangement By Share Based Payment Award Options Forfeitures And Expirations In Period
ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeituresAndExpirationsInPeriod
|
43429 | shares |
| CY2016 | us-gaap |
Share Based Compensation Arrangement By Share Based Payment Award Options Forfeitures And Expirations In Period Weighted Average Exercise Price
ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeituresAndExpirationsInPeriodWeightedAverageExercisePrice
|
41.38 | |
| CY2016Q4 | us-gaap |
Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Intrinsic Value
ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingIntrinsicValue
|
195000000 | USD |
| CY2015Q4 | us-gaap |
Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Number
ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber
|
35749906 | shares |
| CY2016Q4 | us-gaap |
Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Number
ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber
|
24585864 | shares |
| CY2015Q4 | us-gaap |
Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Weighted Average Exercise Price
ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice
|
40.96 | |
| CY2016Q4 | us-gaap |
Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Weighted Average Exercise Price
ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice
|
41.28 | |
| CY2016 | us-gaap |
Share Based Compensation Arrangements By Share Based Payment Award Options Exercises In Period Weighted Average Exercise Price
ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsExercisesInPeriodWeightedAverageExercisePrice
|
40.26 | |
| CY2016Q4 | us-gaap |
Sharebased Compensation Arrangement By Sharebased Payment Award Options Exercisable Intrinsic Value1
SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsExercisableIntrinsicValue1
|
168000000 | USD |
| CY2016 | us-gaap |
Sharebased Compensation Arrangement By Sharebased Payment Award Options Exercisable Weighted Average Remaining Contractual Term1
SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsExercisableWeightedAverageRemainingContractualTerm1
|
P5Y | |
| CY2016 | us-gaap |
Sharebased Compensation Arrangement By Sharebased Payment Award Options Outstanding Weighted Average Remaining Contractual Term2
SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsOutstandingWeightedAverageRemainingContractualTerm2
|
P6Y | |
| CY2015Q4 | us-gaap |
Short Term Borrowings
ShortTermBorrowings
|
1376000000 | USD |
| CY2016Q4 | us-gaap |
Short Term Borrowings
ShortTermBorrowings
|
2241000000 | USD |
| CY2015Q4 | us-gaap |
Short Term Debt Weighted Average Interest Rate
ShortTermDebtWeightedAverageInterestRate
|
0.009 | |
| CY2016Q4 | us-gaap |
Short Term Debt Weighted Average Interest Rate
ShortTermDebtWeightedAverageInterestRate
|
0.011 | |
| CY2014 | us-gaap |
State And Local Income Tax Expense Benefit Continuing Operations
StateAndLocalIncomeTaxExpenseBenefitContinuingOperations
|
107000000 | USD |
| CY2015 | us-gaap |
State And Local Income Tax Expense Benefit Continuing Operations
StateAndLocalIncomeTaxExpenseBenefitContinuingOperations
|
105000000 | USD |
| CY2016 | us-gaap |
State And Local Income Tax Expense Benefit Continuing Operations
StateAndLocalIncomeTaxExpenseBenefitContinuingOperations
|
109000000 | USD |
| CY2016 | us-gaap |
Stock Issued During Period Shares Stock Options Exercised
StockIssuedDuringPeriodSharesStockOptionsExercised
|
11120613 | shares |
| CY2014 | us-gaap |
Stock Issued During Period Value New Issues
StockIssuedDuringPeriodValueNewIssues
|
806000000 | USD |
| CY2015 | us-gaap |
Stock Issued During Period Value New Issues
StockIssuedDuringPeriodValueNewIssues
|
256000000 | USD |
| CY2016 | us-gaap |
Stock Issued During Period Value New Issues
StockIssuedDuringPeriodValueNewIssues
|
3758000000 | USD |
| CY2014 | us-gaap |
Stock Option Plan Expense
StockOptionPlanExpense
|
63000000 | USD |
| CY2015 | us-gaap |
Stock Option Plan Expense
StockOptionPlanExpense
|
99000000 | USD |
| CY2016 | us-gaap |
Stock Option Plan Expense
StockOptionPlanExpense
|
121000000 | USD |
| CY2015 | us-gaap |
Stock Redeemed Or Called During Period Value
StockRedeemedOrCalledDuringPeriodValue
|
150000000 | USD |
| CY2015 | us-gaap |
Stock Repurchased During Period Value
StockRepurchasedDuringPeriodValue
|
115000000 | USD |
| CY2015Q4 | us-gaap |
Stockholders Equity
StockholdersEquity
|
20592000000 | USD |
| CY2016Q4 | us-gaap |
Stockholders Equity
StockholdersEquity
|
24758000000 | USD |
| CY2013Q4 | us-gaap |
Stockholders Equity Including Portion Attributable To Noncontrolling Interest
StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest
|
19764000000 | USD |
| CY2014Q4 | us-gaap |
Stockholders Equity Including Portion Attributable To Noncontrolling Interest
StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest
|
20926000000 | USD |
| CY2015Q4 | us-gaap |
Stockholders Equity Including Portion Attributable To Noncontrolling Interest
StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest
|
21982000000 | USD |
| CY2016Q4 | us-gaap |
Stockholders Equity Including Portion Attributable To Noncontrolling Interest
StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest
|
26612000000 | USD |
| CY2014 | us-gaap |
Stockholders Equity Other
StockholdersEquityOther
|
-7000000 | USD |
| CY2015 | us-gaap |
Stockholders Equity Other
StockholdersEquityOther
|
2000000 | USD |
| CY2016 | us-gaap |
Stockholders Equity Other
StockholdersEquityOther
|
6000000 | USD |
| CY2016Q4 | us-gaap |
Tax Credit Carryforward Amount
TaxCreditCarryforwardAmount
|
1800000000 | USD |
| CY2014 | us-gaap |
Taxes Excluding Income And Excise Taxes
TaxesExcludingIncomeAndExciseTaxes
|
981000000 | USD |
| CY2015 | us-gaap |
Taxes Excluding Income And Excise Taxes
TaxesExcludingIncomeAndExciseTaxes
|
997000000 | USD |
| CY2016 | us-gaap |
Taxes Excluding Income And Excise Taxes
TaxesExcludingIncomeAndExciseTaxes
|
1113000000 | USD |
| CY2014Q4 | us-gaap |
Temporary Equity Carrying Amount Attributable To Parent
TemporaryEquityCarryingAmountAttributableToParent
|
375000000 | USD |
| CY2015Q4 | us-gaap |
Temporary Equity Carrying Amount Attributable To Parent
TemporaryEquityCarryingAmountAttributableToParent
|
118000000 | USD |
| CY2016Q4 | us-gaap |
Temporary Equity Carrying Amount Attributable To Parent
TemporaryEquityCarryingAmountAttributableToParent
|
118000000 | USD |
| CY2015Q4 | us-gaap |
Treasury Stock Shares
TreasuryStockShares
|
3400000 | shares |
| CY2016Q4 | us-gaap |
Treasury Stock Shares
TreasuryStockShares
|
800000 | shares |
| CY2015Q4 | us-gaap |
Treasury Stock Value
TreasuryStockValue
|
142000000 | USD |
| CY2016Q4 | us-gaap |
Treasury Stock Value
TreasuryStockValue
|
31000000 | USD |
| CY2014Q4 | us-gaap |
Unamortized Debt Issuance Expense
UnamortizedDebtIssuanceExpense
|
202000000 | USD |
| CY2015Q4 | us-gaap |
Unamortized Debt Issuance Expense
UnamortizedDebtIssuanceExpense
|
241000000 | USD |
| CY2016Q4 | us-gaap |
Unamortized Debt Issuance Expense
UnamortizedDebtIssuanceExpense
|
213000000 | USD |
| CY2015Q4 | us-gaap |
Unamortized Loss Reacquired Debt Noncurrent
UnamortizedLossReacquiredDebtNoncurrent
|
227000000 | USD |
| CY2016Q4 | us-gaap |
Unamortized Loss Reacquired Debt Noncurrent
UnamortizedLossReacquiredDebtNoncurrent
|
223000000 | USD |
| CY2013Q4 | us-gaap |
Unrecognized Tax Benefits
UnrecognizedTaxBenefits
|
7000000 | USD |
| CY2014Q4 | us-gaap |
Unrecognized Tax Benefits
UnrecognizedTaxBenefits
|
170000000 | USD |
| CY2015Q4 | us-gaap |
Unrecognized Tax Benefits
UnrecognizedTaxBenefits
|
433000000 | USD |
| CY2016Q4 | us-gaap |
Unrecognized Tax Benefits
UnrecognizedTaxBenefits
|
484000000 | USD |
| CY2014 | us-gaap |
Unrecognized Tax Benefits Decreases Resulting From Prior Period Tax Positions
UnrecognizedTaxBenefitsDecreasesResultingFromPriorPeriodTaxPositions
|
3000000 | USD |
| CY2015 | us-gaap |
Unrecognized Tax Benefits Decreases Resulting From Prior Period Tax Positions
UnrecognizedTaxBenefitsDecreasesResultingFromPriorPeriodTaxPositions
|
20000000 | USD |
| CY2016 | us-gaap |
Unrecognized Tax Benefits Decreases Resulting From Prior Period Tax Positions
UnrecognizedTaxBenefitsDecreasesResultingFromPriorPeriodTaxPositions
|
15000000 | USD |
| CY2014 | us-gaap |
Unrecognized Tax Benefits Increases Resulting From Current Period Tax Positions
UnrecognizedTaxBenefitsIncreasesResultingFromCurrentPeriodTaxPositions
|
64000000 | USD |
| CY2015 | us-gaap |
Unrecognized Tax Benefits Increases Resulting From Current Period Tax Positions
UnrecognizedTaxBenefitsIncreasesResultingFromCurrentPeriodTaxPositions
|
43000000 | USD |
| CY2016 | us-gaap |
Unrecognized Tax Benefits Increases Resulting From Current Period Tax Positions
UnrecognizedTaxBenefitsIncreasesResultingFromCurrentPeriodTaxPositions
|
45000000 | USD |
| CY2014 | us-gaap |
Unrecognized Tax Benefits Increases Resulting From Prior Period Tax Positions
UnrecognizedTaxBenefitsIncreasesResultingFromPriorPeriodTaxPositions
|
102000000 | USD |
| CY2015 | us-gaap |
Unrecognized Tax Benefits Increases Resulting From Prior Period Tax Positions
UnrecognizedTaxBenefitsIncreasesResultingFromPriorPeriodTaxPositions
|
240000000 | USD |
| CY2016 | us-gaap |
Unrecognized Tax Benefits Increases Resulting From Prior Period Tax Positions
UnrecognizedTaxBenefitsIncreasesResultingFromPriorPeriodTaxPositions
|
21000000 | USD |
| CY2014Q4 | us-gaap |
Unrecognized Tax Benefits That Would Impact Effective Tax Rate
UnrecognizedTaxBenefitsThatWouldImpactEffectiveTaxRate
|
10000000 | USD |
| CY2015Q4 | us-gaap |
Unrecognized Tax Benefits That Would Impact Effective Tax Rate
UnrecognizedTaxBenefitsThatWouldImpactEffectiveTaxRate
|
10000000 | USD |
| CY2016Q4 | us-gaap |
Unrecognized Tax Benefits That Would Impact Effective Tax Rate
UnrecognizedTaxBenefitsThatWouldImpactEffectiveTaxRate
|
20000000 | USD |
| CY2014 | us-gaap |
Utilities Operating Expense Fuel Used
UtilitiesOperatingExpenseFuelUsed
|
6005000000 | USD |
| CY2015 | us-gaap |
Utilities Operating Expense Fuel Used
UtilitiesOperatingExpenseFuelUsed
|
4750000000 | USD |
| CY2016 | us-gaap |
Utilities Operating Expense Fuel Used
UtilitiesOperatingExpenseFuelUsed
|
4361000000 | USD |
| CY2014 | us-gaap |
Utilities Operating Expense Maintenance And Operations
UtilitiesOperatingExpenseMaintenanceAndOperations
|
4354000000 | USD |
| CY2015 | us-gaap |
Utilities Operating Expense Maintenance And Operations
UtilitiesOperatingExpenseMaintenanceAndOperations
|
4416000000 | USD |
| CY2016 | us-gaap |
Utilities Operating Expense Maintenance And Operations
UtilitiesOperatingExpenseMaintenanceAndOperations
|
5240000000 | USD |
| CY2014 | us-gaap |
Weighted Average Number Of Diluted Shares Outstanding
WeightedAverageNumberOfDilutedSharesOutstanding
|
901000000 | shares |
| CY2015 | us-gaap |
Weighted Average Number Of Diluted Shares Outstanding
WeightedAverageNumberOfDilutedSharesOutstanding
|
914000000 | shares |
| CY2016 | us-gaap |
Weighted Average Number Of Diluted Shares Outstanding
WeightedAverageNumberOfDilutedSharesOutstanding
|
958000000 | shares |
| CY2014 | us-gaap |
Weighted Average Number Of Shares Outstanding Basic
WeightedAverageNumberOfSharesOutstandingBasic
|
897000000 | shares |
| CY2015 | us-gaap |
Weighted Average Number Of Shares Outstanding Basic
WeightedAverageNumberOfSharesOutstandingBasic
|
910000000 | shares |
| CY2016 | us-gaap |
Weighted Average Number Of Shares Outstanding Basic
WeightedAverageNumberOfSharesOutstandingBasic
|
951000000 | shares |
