2019 Q4 Form 10-K Financial Statement

#000009212220000017 Filed on February 20, 2020

View on sec.gov

Income Statement

Concept 2019 Q4 2019 Q3 2019 Q2
Revenue $4.914B $5.995B $5.098B
YoY Change -7.93% -2.66% -9.4%
Cost Of Revenue $673.0M $79.00M $191.0M
YoY Change -17.42% -83.58% -74.29%
Gross Profit $4.241B $5.916B $4.907B
YoY Change -6.21% 4.19% 0.47%
Gross Profit Margin 86.3% 98.68% 96.25%
Selling, General & Admin
YoY Change
% of Gross Profit
Research & Development
YoY Change
% of Gross Profit
Depreciation & Amortization $817.0M $891.0M $772.0M
YoY Change -9.42% -0.67% -11.97%
% of Gross Profit 19.26% 15.06% 15.73%
Operating Expenses $3.568B $3.427B $3.252B
YoY Change -8.82% -10.29% -9.82%
Operating Profit $690.0M $2.013B $1.342B
YoY Change 19.38% -7.41% 2030.16%
Interest Expense -$400.0M -$395.0M -$396.0M
YoY Change -3.85% -13.76% -15.74%
% of Operating Profit -57.97% -19.62% -29.51%
Other Income/Expense, Net $45.00M -$301.0M -$266.0M
YoY Change -207.14% -8.51% -19.15%
Pretax Income $335.0M $1.712B $1.076B
YoY Change 179.17% -7.21% -504.51%
Income Tax -$74.00M $367.0M $145.0M
% Of Pretax Income -22.09% 21.44% 13.48%
Net Earnings $440.0M $1.316B $899.0M
YoY Change 58.27% 13.06% -683.77%
Net Earnings / Revenue 8.95% 21.95% 17.63%
Basic Earnings Per Share $0.42 $1.26 $0.86
Diluted Earnings Per Share $0.42 $1.25 $0.85
COMMON SHARES
Basic Shares Outstanding 1.048B shares 1.044B shares
Diluted Shares Outstanding 1.057B shares 1.052B shares

Balance Sheet

Concept 2019 Q4 2019 Q3 2019 Q2
SHORT-TERM ASSETS
Cash & Short-Term Investments $1.975B $2.931B $1.383B
YoY Change 41.48% 58.69% -30.15%
Cash & Equivalents $1.975B $2.931B $1.383B
Short-Term Investments
Other Short-Term Assets $188.0M $208.0M $138.0M
YoY Change 16.05% -10.34% -19.77%
Inventory $2.388B $2.324B $2.143B
Prepaid Expenses $314.0M $279.0M $543.0M
Receivables $1.565B $1.765B $1.604B
Other Receivables $1.245B $1.029B $1.186B
Total Short-Term Assets $9.817B $9.917B $8.352B
YoY Change 2.44% 5.68% -28.12%
LONG-TERM ASSETS
Property, Plant & Equipment $83.08B $81.71B $81.17B
YoY Change 2.83% 4.18% 5.16%
Goodwill $5.280B $5.280B $5.282B
YoY Change -0.66% -0.66% -0.62%
Intangibles $536.0M $550.0M $550.0M
YoY Change -12.56% -18.4% -21.65%
Long-Term Investments $1.303B $1.540B $1.557B
YoY Change -17.53% -1.85% 0.71%
Other Assets $1.071B $1.156B $1.141B
YoY Change -26.79% -19.5% -23.78%
Total Long-Term Assets $108.9B $107.7B $106.5B
YoY Change 1.45% 5.22% 5.3%
TOTAL ASSETS
Total Short-Term Assets $9.817B $9.917B $8.352B
Total Long-Term Assets $108.9B $107.7B $106.5B
Total Assets $118.7B $117.6B $114.9B
YoY Change 1.53% 5.26% 1.85%
SHORT-TERM LIABILITIES
YoY Change
Accounts Payable $2.115B $1.898B $1.978B
YoY Change -18.02% -15.49% -8.51%
Accrued Expenses $2.354B $2.102B $1.860B
YoY Change 9.08% -7.89% 12.12%
Deferred Revenue
YoY Change
Short-Term Debt $2.055B $542.0M $1.398B
YoY Change -29.5% -78.86% -71.93%
Long-Term Debt Due $2.989B $3.313B $3.148B
YoY Change -6.54% 9.96% 40.72%
Total Short-Term Liabilities $12.55B $10.53B $11.00B
YoY Change -12.18% -18.75% -23.44%
LONG-TERM LIABILITIES
Long-Term Debt $41.80B $42.10B $39.68B
YoY Change 2.61% 1.62% -6.59%
Other Long-Term Liabilities $609.0M $562.0M $384.0M
YoY Change 30.97% 23.79% -25.58%
Total Long-Term Liabilities $609.0M $562.0M $384.0M
YoY Change 30.97% 23.79% -25.58%
TOTAL LIABILITIES
Total Short-Term Liabilities $12.55B $10.53B $11.00B
Total Long-Term Liabilities $609.0M $562.0M $384.0M
Total Liabilities $86.65B $85.51B $83.45B
YoY Change -1.07% 2.62% -2.7%
SHAREHOLDERS EQUITY
Retained Earnings $10.88B
YoY Change 24.94%
Common Stock $16.99B
YoY Change 4.51%
Preferred Stock
YoY Change
Treasury Stock (at cost) $42.00M
YoY Change 10.53%
Treasury Stock Shares 1.000M shares
Shareholders Equity $27.51B $27.80B $27.19B
YoY Change
Total Liabilities & Shareholders Equity $118.7B $117.6B $114.9B
YoY Change 1.53% 5.26% 1.85%

Cashflow Statement

Concept 2019 Q4 2019 Q3 2019 Q2
OPERATING ACTIVITIES
Net Income $440.0M $1.316B $899.0M
YoY Change 58.27% 13.06% -683.77%
Depreciation, Depletion And Amortization $817.0M $891.0M $772.0M
YoY Change -9.42% -0.67% -11.97%
Cash From Operating Activities $900.0M $2.368B $1.769B
YoY Change -33.87% 1.81% 1.14%
INVESTING ACTIVITIES
Capital Expenditures -$2.138B -$1.933B -$1.806B
YoY Change -3.17% -1.63% -11.77%
Acquisitions
YoY Change
Other Investing Activities -$181.0M -$142.0M $354.0M
YoY Change 248.08% -106.8% -15.31%
Cash From Investing Activities -$2.319B -$2.075B -$1.452B
YoY Change 2.61% -1773.39% -10.87%
FINANCING ACTIVITIES
Cash Dividend Paid
YoY Change
Common Stock Issuance & Retirement, Net
YoY Change
Debt Paid & Issued, Net
YoY Change
Cash From Financing Activities 462.0M 1.256B -295.0M
YoY Change -12.33% -148.76% -24.94%
NET CHANGE
Cash From Operating Activities 900.0M 2.368B 1.769B
Cash From Investing Activities -2.319B -2.075B -1.452B
Cash From Financing Activities 462.0M 1.256B -295.0M
Net Change In Cash -957.0M 1.549B 22.00M
YoY Change 157.26% -1329.37% -108.06%
FREE CASH FLOW
Cash From Operating Activities $900.0M $2.368B $1.769B
Capital Expenditures -$2.138B -$1.933B -$1.806B
Free Cash Flow $3.038B $4.301B $3.575B
YoY Change -14.88% 0.23% -5.82%

Facts In Submission

Frame Concept Type Concept / XBRL Key Value Unit
CY2019 dei Amendment Flag
AmendmentFlag
false
CY2019 dei Current Fiscal Year End Date
CurrentFiscalYearEndDate
--12-31
CY2019 dei Document Fiscal Period Focus
DocumentFiscalPeriodFocus
FY
CY2019 dei Document Fiscal Year Focus
DocumentFiscalYearFocus
2019
CY2019 dei Entity Central Index Key
EntityCentralIndexKey
0000092122
CY2019 dei Entity Emerging Growth Company
EntityEmergingGrowthCompany
false
CY2019 dei Entity Small Business
EntitySmallBusiness
false
CY2019 so Maximum Deductible Waiting Period
MaximumDeductibleWaitingPeriod
P182D
CY2017 us-gaap Common Stock Dividends Per Share Cash Paid
CommonStockDividendsPerShareCashPaid
2.3000
CY2018 us-gaap Common Stock Dividends Per Share Cash Paid
CommonStockDividendsPerShareCashPaid
2.3800
CY2019 us-gaap Common Stock Dividends Per Share Cash Paid
CommonStockDividendsPerShareCashPaid
2.4600
CY2018Q4 us-gaap Common Stock Par Or Stated Value Per Share
CommonStockParOrStatedValuePerShare
5
CY2019Q4 us-gaap Common Stock Par Or Stated Value Per Share
CommonStockParOrStatedValuePerShare
5
CY2018Q4 us-gaap Common Stock Shares Authorized
CommonStockSharesAuthorized
1500000000 shares
CY2019Q4 us-gaap Common Stock Shares Authorized
CommonStockSharesAuthorized
1500000000 shares
CY2018Q4 us-gaap Common Stock Shares Issued
CommonStockSharesIssued
1000000000 shares
CY2019Q4 us-gaap Common Stock Shares Issued
CommonStockSharesIssued
1100000000 shares
CY2019Q4 us-gaap Goodwill Impairment Loss
GoodwillImpairmentLoss
0 USD
CY2017 us-gaap Interest Paid Capitalized
InterestPaidCapitalized
89000000 USD
CY2018 us-gaap Interest Paid Capitalized
InterestPaidCapitalized
72000000 USD
CY2019 us-gaap Interest Paid Capitalized
InterestPaidCapitalized
74000000 USD
CY2017 us-gaap Other Comprehensive Income Defined Benefit Plans Net Unamortized Gain Loss Arising During Period Tax
OtherComprehensiveIncomeDefinedBenefitPlansNetUnamortizedGainLossArisingDuringPeriodTax
6000000 USD
CY2018 us-gaap Other Comprehensive Income Defined Benefit Plans Net Unamortized Gain Loss Arising During Period Tax
OtherComprehensiveIncomeDefinedBenefitPlansNetUnamortizedGainLossArisingDuringPeriodTax
-2000000 USD
CY2019 us-gaap Other Comprehensive Income Defined Benefit Plans Net Unamortized Gain Loss Arising During Period Tax
OtherComprehensiveIncomeDefinedBenefitPlansNetUnamortizedGainLossArisingDuringPeriodTax
-31000000 USD
CY2019 us-gaap Other Comprehensive Income Loss Cash Flow Hedge Gain Loss Before Reclassification Tax
OtherComprehensiveIncomeLossCashFlowHedgeGainLossBeforeReclassificationTax
-39000000 USD
CY2019 us-gaap Other Comprehensive Income Loss Cash Flow Hedge Gain Loss Reclassification Tax
OtherComprehensiveIncomeLossCashFlowHedgeGainLossReclassificationTax
-19000000 USD
CY2017 us-gaap Other Comprehensive Income Loss Reclassification Adjustment From Aoci On Derivatives Tax
OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIOnDerivativesTax
37000000 USD
CY2018 us-gaap Other Comprehensive Income Loss Reclassification Adjustment From Aoci On Derivatives Tax
OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIOnDerivativesTax
-24000000 USD
CY2017 us-gaap Other Comprehensive Income Loss Reclassification Adjustment From Aoci Pension And Other Postretirement Benefit Plans For Net Gain Loss Tax
OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansForNetGainLossTax
6000000 USD
CY2018 us-gaap Other Comprehensive Income Loss Reclassification Adjustment From Aoci Pension And Other Postretirement Benefit Plans For Net Gain Loss Tax
OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansForNetGainLossTax
-5000000 USD
CY2019 us-gaap Other Comprehensive Income Loss Reclassification Adjustment From Aoci Pension And Other Postretirement Benefit Plans For Net Gain Loss Tax
OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansForNetGainLossTax
-1000000 USD
CY2017 us-gaap Other Comprehensive Income Unrealized Gain Loss On Derivatives Arising During Period Tax
OtherComprehensiveIncomeUnrealizedGainLossOnDerivativesArisingDuringPeriodTax
34000000 USD
CY2018 us-gaap Other Comprehensive Income Unrealized Gain Loss On Derivatives Arising During Period Tax
OtherComprehensiveIncomeUnrealizedGainLossOnDerivativesArisingDuringPeriodTax
-16000000 USD
CY2019Q4 us-gaap Revenue Remaining Performance Obligation Expected Timing Of Satisfaction Period1
RevenueRemainingPerformanceObligationExpectedTimingOfSatisfactionPeriod1
P1Y
CY2019Q4 us-gaap Revenue Remaining Performance Obligation Expected Timing Of Satisfaction Period1
RevenueRemainingPerformanceObligationExpectedTimingOfSatisfactionPeriod1
P1Y
CY2019Q4 us-gaap Revenue Remaining Performance Obligation Expected Timing Of Satisfaction Period1
RevenueRemainingPerformanceObligationExpectedTimingOfSatisfactionPeriod1
P1Y
CY2019Q4 us-gaap Revenue Remaining Performance Obligation Expected Timing Of Satisfaction Period1
RevenueRemainingPerformanceObligationExpectedTimingOfSatisfactionPeriod1
P1Y
CY2019Q4 us-gaap Revenue Remaining Performance Obligation Expected Timing Of Satisfaction Period1
RevenueRemainingPerformanceObligationExpectedTimingOfSatisfactionPeriod1
P1Y
CY2019Q4 us-gaap Revenue Remaining Performance Obligation Expected Timing Of Satisfaction Period1
RevenueRemainingPerformanceObligationExpectedTimingOfSatisfactionPeriod1
CY2019Q4 us-gaap Sharebased Compensation Arrangement By Sharebased Payment Award Options Exercisable Intrinsic Value1
SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsExercisableIntrinsicValue1
124000000 USD
CY2018Q4 us-gaap Treasury Stock Shares
TreasuryStockShares
1000000 shares
CY2019Q4 us-gaap Treasury Stock Shares
TreasuryStockShares
1000000 shares
CY2019 dei Document Type
DocumentType
10-K
CY2019 dei Document Annual Report
DocumentAnnualReport
true
CY2019 dei Document Period End Date
DocumentPeriodEndDate
2019-12-31
CY2019 dei Document Transition Report
DocumentTransitionReport
false
CY2019 dei Entity File Number
EntityFileNumber
1-3526
CY2019 dei Entity Registrant Name
EntityRegistrantName
The Southern Company
CY2019 dei Entity Tax Identification Number
EntityTaxIdentificationNumber
58-0690070
CY2019 dei Entity Incorporation State Country Code
EntityIncorporationStateCountryCode
DE
CY2019 dei Entity Address Address Line1
EntityAddressAddressLine1
30 Ivan Allen Jr. Boulevard, N.W.
CY2019 dei Entity Address City Or Town
EntityAddressCityOrTown
Atlanta
CY2019 dei Entity Address State Or Province
EntityAddressStateOrProvince
GA
CY2019 dei Entity Address Postal Zip Code
EntityAddressPostalZipCode
30308
CY2019 dei City Area Code
CityAreaCode
404
CY2019 dei Local Phone Number
LocalPhoneNumber
506-5000
CY2019 dei Entity Well Known Seasoned Issuer
EntityWellKnownSeasonedIssuer
Yes
CY2019 dei Entity Voluntary Filers
EntityVoluntaryFilers
No
CY2019 dei Entity Current Reporting Status
EntityCurrentReportingStatus
Yes
CY2019 dei Entity Interactive Data Current
EntityInteractiveDataCurrent
Yes
CY2019 dei Entity Filer Category
EntityFilerCategory
Large Accelerated Filer
CY2019 dei Entity Shell Company
EntityShellCompany
false
CY2019Q2 dei Entity Public Float
EntityPublicFloat
57800000000 USD
CY2020Q1 dei Entity Common Stock Shares Outstanding
EntityCommonStockSharesOutstanding
1054228409 shares
CY2019 us-gaap Revenue From Contract With Customer Including Assessed Tax
RevenueFromContractWithCustomerIncludingAssessedTax
21419000000 USD
CY2018 us-gaap Revenue From Contract With Customer Including Assessed Tax
RevenueFromContractWithCustomerIncludingAssessedTax
23495000000 USD
CY2017 us-gaap Revenue From Contract With Customer Including Assessed Tax
RevenueFromContractWithCustomerIncludingAssessedTax
23031000000 USD
CY2019 us-gaap Utilities Operating Expense Maintenance And Operations
UtilitiesOperatingExpenseMaintenanceAndOperations
5600000000 USD
CY2018 us-gaap Utilities Operating Expense Maintenance And Operations
UtilitiesOperatingExpenseMaintenanceAndOperations
5889000000 USD
CY2017 us-gaap Utilities Operating Expense Maintenance And Operations
UtilitiesOperatingExpenseMaintenanceAndOperations
5739000000 USD
CY2019 so Depreciation And Amortization Excluding Nuclear Fuel
DepreciationAndAmortizationExcludingNuclearFuel
3038000000 USD
CY2018 so Depreciation And Amortization Excluding Nuclear Fuel
DepreciationAndAmortizationExcludingNuclearFuel
3131000000 USD
CY2017 so Depreciation And Amortization Excluding Nuclear Fuel
DepreciationAndAmortizationExcludingNuclearFuel
3010000000 USD
CY2019 us-gaap Taxes Excluding Income And Excise Taxes
TaxesExcludingIncomeAndExciseTaxes
1230000000 USD
CY2018 us-gaap Taxes Excluding Income And Excise Taxes
TaxesExcludingIncomeAndExciseTaxes
1315000000 USD
CY2017 us-gaap Taxes Excluding Income And Excise Taxes
TaxesExcludingIncomeAndExciseTaxes
1250000000 USD
CY2019 so Estimated Loss On Integrated Coal Gasification Combined Cycle Project
EstimatedLossOnIntegratedCoalGasificationCombinedCycleProject
24000000 USD
CY2018 so Estimated Loss On Integrated Coal Gasification Combined Cycle Project
EstimatedLossOnIntegratedCoalGasificationCombinedCycleProject
1097000000 USD
CY2017 so Estimated Loss On Integrated Coal Gasification Combined Cycle Project
EstimatedLossOnIntegratedCoalGasificationCombinedCycleProject
3362000000 USD
CY2019 us-gaap Asset Impairment Charges
AssetImpairmentCharges
168000000 USD
CY2018 us-gaap Asset Impairment Charges
AssetImpairmentCharges
210000000 USD
CY2017 us-gaap Asset Impairment Charges
AssetImpairmentCharges
0 USD
CY2019 us-gaap Disposal Group Not Discontinued Operation Gain Loss On Disposal
DisposalGroupNotDiscontinuedOperationGainLossOnDisposal
-2569000000 USD
CY2018 us-gaap Disposal Group Not Discontinued Operation Gain Loss On Disposal
DisposalGroupNotDiscontinuedOperationGainLossOnDisposal
-291000000 USD
CY2017 us-gaap Disposal Group Not Discontinued Operation Gain Loss On Disposal
DisposalGroupNotDiscontinuedOperationGainLossOnDisposal
-40000000 USD
CY2019 us-gaap Costs And Expenses
CostsAndExpenses
13683000000 USD
CY2018 us-gaap Costs And Expenses
CostsAndExpenses
19304000000 USD
CY2017 us-gaap Costs And Expenses
CostsAndExpenses
20698000000 USD
CY2019 us-gaap Operating Income Loss
OperatingIncomeLoss
7736000000 USD
CY2018 us-gaap Operating Income Loss
OperatingIncomeLoss
4191000000 USD
CY2017 us-gaap Operating Income Loss
OperatingIncomeLoss
2333000000 USD
CY2019 us-gaap Public Utilities Allowance For Funds Used During Construction Capitalized Cost Of Equity
PublicUtilitiesAllowanceForFundsUsedDuringConstructionCapitalizedCostOfEquity
128000000 USD
CY2018 us-gaap Public Utilities Allowance For Funds Used During Construction Capitalized Cost Of Equity
PublicUtilitiesAllowanceForFundsUsedDuringConstructionCapitalizedCostOfEquity
138000000 USD
CY2017 us-gaap Public Utilities Allowance For Funds Used During Construction Capitalized Cost Of Equity
PublicUtilitiesAllowanceForFundsUsedDuringConstructionCapitalizedCostOfEquity
160000000 USD
CY2019 us-gaap Income Loss From Equity Method Investments
IncomeLossFromEquityMethodInvestments
162000000 USD
CY2018 us-gaap Income Loss From Equity Method Investments
IncomeLossFromEquityMethodInvestments
148000000 USD
CY2017 us-gaap Income Loss From Equity Method Investments
IncomeLossFromEquityMethodInvestments
106000000 USD
CY2019 us-gaap Interest And Debt Expense
InterestAndDebtExpense
1736000000 USD
CY2018 us-gaap Interest And Debt Expense
InterestAndDebtExpense
1842000000 USD
CY2017 us-gaap Interest And Debt Expense
InterestAndDebtExpense
1694000000 USD
CY2019 us-gaap Other Nonoperating Income Expense
OtherNonoperatingIncomeExpense
252000000 USD
CY2018 us-gaap Other Nonoperating Income Expense
OtherNonoperatingIncomeExpense
114000000 USD
CY2017 us-gaap Other Nonoperating Income Expense
OtherNonoperatingIncomeExpense
163000000 USD
CY2019 us-gaap Nonoperating Income Expense
NonoperatingIncomeExpense
-1194000000 USD
CY2018 us-gaap Nonoperating Income Expense
NonoperatingIncomeExpense
-1442000000 USD
CY2017 us-gaap Nonoperating Income Expense
NonoperatingIncomeExpense
-1265000000 USD
CY2019 us-gaap Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest
IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest
6542000000 USD
CY2018 us-gaap Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest
IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest
2749000000 USD
CY2017 us-gaap Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest
IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest
1068000000 USD
CY2019 us-gaap Income Tax Expense Benefit
IncomeTaxExpenseBenefit
1798000000 USD
CY2018 us-gaap Income Tax Expense Benefit
IncomeTaxExpenseBenefit
449000000 USD
CY2017 us-gaap Income Tax Expense Benefit
IncomeTaxExpenseBenefit
142000000 USD
CY2019 us-gaap Profit Loss
ProfitLoss
4744000000 USD
CY2018 us-gaap Profit Loss
ProfitLoss
2300000000 USD
CY2019 us-gaap Preferred Stock Dividends Income Statement Impact
PreferredStockDividendsIncomeStatementImpact
15000000 USD
CY2018 us-gaap Preferred Stock Dividends Income Statement Impact
PreferredStockDividendsIncomeStatementImpact
16000000 USD
CY2017 us-gaap Profit Loss
ProfitLoss
926000000 USD
CY2017 us-gaap Preferred Stock Dividends Income Statement Impact
PreferredStockDividendsIncomeStatementImpact
38000000 USD
CY2019 us-gaap Net Income Loss Attributable To Noncontrolling Interest
NetIncomeLossAttributableToNoncontrollingInterest
-10000000 USD
CY2018 us-gaap Net Income Loss Attributable To Noncontrolling Interest
NetIncomeLossAttributableToNoncontrollingInterest
58000000 USD
CY2017 us-gaap Net Income Loss Attributable To Noncontrolling Interest
NetIncomeLossAttributableToNoncontrollingInterest
46000000 USD
CY2019 us-gaap Net Income Loss Available To Common Stockholders Basic
NetIncomeLossAvailableToCommonStockholdersBasic
4739000000 USD
CY2018 us-gaap Net Income Loss Available To Common Stockholders Basic
NetIncomeLossAvailableToCommonStockholdersBasic
2226000000 USD
CY2017 us-gaap Net Income Loss Available To Common Stockholders Basic
NetIncomeLossAvailableToCommonStockholdersBasic
842000000 USD
CY2019 us-gaap Earnings Per Share Basic
EarningsPerShareBasic
4.53
CY2018 us-gaap Earnings Per Share Basic
EarningsPerShareBasic
2.18
CY2017 us-gaap Earnings Per Share Basic
EarningsPerShareBasic
0.84
CY2019 us-gaap Earnings Per Share Diluted
EarningsPerShareDiluted
4.50
CY2018 us-gaap Earnings Per Share Diluted
EarningsPerShareDiluted
2.17
CY2017 us-gaap Earnings Per Share Diluted
EarningsPerShareDiluted
0.84
CY2019 us-gaap Weighted Average Number Of Shares Outstanding Basic
WeightedAverageNumberOfSharesOutstandingBasic
1046000000 shares
CY2018 us-gaap Weighted Average Number Of Shares Outstanding Basic
WeightedAverageNumberOfSharesOutstandingBasic
1020000000 shares
CY2017 us-gaap Weighted Average Number Of Shares Outstanding Basic
WeightedAverageNumberOfSharesOutstandingBasic
1000000000 shares
CY2019 us-gaap Weighted Average Number Of Diluted Shares Outstanding
WeightedAverageNumberOfDilutedSharesOutstanding
1054000000 shares
CY2018 us-gaap Weighted Average Number Of Diluted Shares Outstanding
WeightedAverageNumberOfDilutedSharesOutstanding
1025000000 shares
CY2017 us-gaap Weighted Average Number Of Diluted Shares Outstanding
WeightedAverageNumberOfDilutedSharesOutstanding
1008000000 shares
CY2019 us-gaap Profit Loss
ProfitLoss
4744000000 USD
CY2018 us-gaap Profit Loss
ProfitLoss
2300000000 USD
CY2017 us-gaap Profit Loss
ProfitLoss
926000000 USD
CY2019 us-gaap Other Comprehensive Income Loss Cash Flow Hedge Gain Loss Before Reclassification After Tax
OtherComprehensiveIncomeLossCashFlowHedgeGainLossBeforeReclassificationAfterTax
-115000000 USD
CY2018 us-gaap Other Comprehensive Income Unrealized Gain Loss On Derivatives Arising During Period Net Of Tax
OtherComprehensiveIncomeUnrealizedGainLossOnDerivativesArisingDuringPeriodNetOfTax
-47000000 USD
CY2017 us-gaap Other Comprehensive Income Unrealized Gain Loss On Derivatives Arising During Period Net Of Tax
OtherComprehensiveIncomeUnrealizedGainLossOnDerivativesArisingDuringPeriodNetOfTax
57000000 USD
CY2019 us-gaap Other Comprehensive Income Loss Cash Flow Hedge Gain Loss Reclassification After Tax
OtherComprehensiveIncomeLossCashFlowHedgeGainLossReclassificationAfterTax
-57000000 USD
CY2018 us-gaap Other Comprehensive Income Loss Reclassification Adjustment From Aoci On Derivatives Net Of Tax
OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIOnDerivativesNetOfTax
-72000000 USD
CY2017 us-gaap Other Comprehensive Income Loss Reclassification Adjustment From Aoci On Derivatives Net Of Tax
OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIOnDerivativesNetOfTax
60000000 USD
CY2019 us-gaap Other Comprehensive Income Defined Benefit Plans Net Unamortized Gain Loss Arising During Period Net Of Tax
OtherComprehensiveIncomeDefinedBenefitPlansNetUnamortizedGainLossArisingDuringPeriodNetOfTax
-64000000 USD
CY2018 us-gaap Other Comprehensive Income Defined Benefit Plans Net Unamortized Gain Loss Arising During Period Net Of Tax
OtherComprehensiveIncomeDefinedBenefitPlansNetUnamortizedGainLossArisingDuringPeriodNetOfTax
-5000000 USD
CY2017 us-gaap Other Comprehensive Income Defined Benefit Plans Net Unamortized Gain Loss Arising During Period Net Of Tax
OtherComprehensiveIncomeDefinedBenefitPlansNetUnamortizedGainLossArisingDuringPeriodNetOfTax
17000000 USD
CY2019 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
CY2018 us-gaap Other Comprehensive Income Loss Reclassification Adjustment From Aoci Pension And Other Postretirement Benefit Plans For Net Gain Loss Net Of Tax
OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansForNetGainLossNetOfTax
-6000000 USD
CY2017 us-gaap Other Comprehensive Income Loss Reclassification Adjustment From Aoci Pension And Other Postretirement Benefit Plans For Net Gain Loss Net Of Tax
OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansForNetGainLossNetOfTax
23000000 USD
CY2019 us-gaap Other Comprehensive Income Loss Net Of Tax
OtherComprehensiveIncomeLossNetOfTax
-118000000 USD
CY2018 us-gaap Other Comprehensive Income Loss Net Of Tax
OtherComprehensiveIncomeLossNetOfTax
26000000 USD
CY2017 us-gaap Other Comprehensive Income Loss Net Of Tax
OtherComprehensiveIncomeLossNetOfTax
-9000000 USD
CY2019 us-gaap Preferred Stock Dividends Income Statement Impact
PreferredStockDividendsIncomeStatementImpact
15000000 USD
CY2018 us-gaap Preferred Stock Dividends Income Statement Impact
PreferredStockDividendsIncomeStatementImpact
16000000 USD
CY2017 us-gaap Preferred Stock Dividends Income Statement Impact
PreferredStockDividendsIncomeStatementImpact
38000000 USD
CY2018 us-gaap Asset Impairment Charges
AssetImpairmentCharges
210000000 USD
CY2019 us-gaap Comprehensive Income Net Of Tax Attributable To Noncontrolling Interest
ComprehensiveIncomeNetOfTaxAttributableToNoncontrollingInterest
-10000000 USD
CY2018 us-gaap Comprehensive Income Net Of Tax Attributable To Noncontrolling Interest
ComprehensiveIncomeNetOfTaxAttributableToNoncontrollingInterest
58000000 USD
CY2017 us-gaap Comprehensive Income Net Of Tax Attributable To Noncontrolling Interest
ComprehensiveIncomeNetOfTaxAttributableToNoncontrollingInterest
46000000 USD
CY2019 us-gaap Comprehensive Income Net Of Tax
ComprehensiveIncomeNetOfTax
4621000000 USD
CY2018 us-gaap Comprehensive Income Net Of Tax
ComprehensiveIncomeNetOfTax
2252000000 USD
CY2017 us-gaap Comprehensive Income Net Of Tax
ComprehensiveIncomeNetOfTax
833000000 USD
CY2019 us-gaap Profit Loss
ProfitLoss
4744000000 USD
CY2018 us-gaap Profit Loss
ProfitLoss
2300000000 USD
CY2017 us-gaap Profit Loss
ProfitLoss
926000000 USD
CY2019 us-gaap Depreciation Amortization And Accretion Net
DepreciationAmortizationAndAccretionNet
3331000000 USD
CY2018 us-gaap Depreciation Amortization And Accretion Net
DepreciationAmortizationAndAccretionNet
3549000000 USD
CY2017 us-gaap Depreciation Amortization And Accretion Net
DepreciationAmortizationAndAccretionNet
3457000000 USD
CY2019 us-gaap Deferred Income Tax Expense Benefit
DeferredIncomeTaxExpenseBenefit
611000000 USD
CY2018 us-gaap Deferred Income Tax Expense Benefit
DeferredIncomeTaxExpenseBenefit
89000000 USD
CY2017 us-gaap Deferred Income Tax Expense Benefit
DeferredIncomeTaxExpenseBenefit
166000000 USD
CY2019 us-gaap Investment Tax Credit
InvestmentTaxCredit
757000000 USD
CY2018 us-gaap Investment Tax Credit
InvestmentTaxCredit
5000000 USD
CY2017 us-gaap Investment Tax Credit
InvestmentTaxCredit
0 USD
CY2019 us-gaap Public Utilities Allowance For Funds Used During Construction Capitalized Cost Of Equity
PublicUtilitiesAllowanceForFundsUsedDuringConstructionCapitalizedCostOfEquity
128000000 USD
CY2018 us-gaap Public Utilities Allowance For Funds Used During Construction Capitalized Cost Of Equity
PublicUtilitiesAllowanceForFundsUsedDuringConstructionCapitalizedCostOfEquity
138000000 USD
CY2017 us-gaap Public Utilities Allowance For Funds Used During Construction Capitalized Cost Of Equity
PublicUtilitiesAllowanceForFundsUsedDuringConstructionCapitalizedCostOfEquity
160000000 USD
CY2019 us-gaap Pension And Other Postretirement Benefit Expense
PensionAndOtherPostretirementBenefitExpense
-204000000 USD
CY2018 us-gaap Pension And Other Postretirement Benefit Expense
PensionAndOtherPostretirementBenefitExpense
-103000000 USD
CY2017 us-gaap Pension And Other Postretirement Benefit Expense
PensionAndOtherPostretirementBenefitExpense
-84000000 USD
CY2019 us-gaap Pension And Other Postretirement Benefit Contributions
PensionAndOtherPostretirementBenefitContributions
1136000000 USD
CY2018 us-gaap Pension And Other Postretirement Benefit Contributions
PensionAndOtherPostretirementBenefitContributions
4000000 USD
CY2017 us-gaap Pension And Other Postretirement Benefit Contributions
PensionAndOtherPostretirementBenefitContributions
2000000 USD
CY2019 us-gaap Asset Retirement Obligation Cash Paid To Settle
AssetRetirementObligationCashPaidToSettle
328000000 USD
CY2018 us-gaap Asset Retirement Obligation Cash Paid To Settle
AssetRetirementObligationCashPaidToSettle
244000000 USD
CY2017 us-gaap Asset Retirement Obligation Cash Paid To Settle
AssetRetirementObligationCashPaidToSettle
177000000 USD
CY2019 us-gaap Storm Damage Provision
StormDamageProvision
168000000 USD
CY2018 us-gaap Storm Damage Provision
StormDamageProvision
74000000 USD
CY2017 us-gaap Storm Damage Provision
StormDamageProvision
38000000 USD
CY2019 us-gaap Stock Option Plan Expense
StockOptionPlanExpense
107000000 USD
CY2018 us-gaap Stock Option Plan Expense
StockOptionPlanExpense
125000000 USD
CY2017 us-gaap Stock Option Plan Expense
StockOptionPlanExpense
109000000 USD
CY2019 so Estimated Loss On Integrated Coal Gasification Combined Cycle Project Non Cash
EstimatedLossOnIntegratedCoalGasificationCombinedCycleProjectNonCash
15000000 USD
CY2018 so Estimated Loss On Integrated Coal Gasification Combined Cycle Project Non Cash
EstimatedLossOnIntegratedCoalGasificationCombinedCycleProjectNonCash
1093000000 USD
CY2017 so Estimated Loss On Integrated Coal Gasification Combined Cycle Project Non Cash
EstimatedLossOnIntegratedCoalGasificationCombinedCycleProjectNonCash
3179000000 USD
CY2019 us-gaap Asset Impairment Charges
AssetImpairmentCharges
168000000 USD
CY2019 us-gaap Gain Loss On Disposition Of Assets1
GainLossOnDispositionOfAssets1
2588000000 USD
CY2017 us-gaap Asset Impairment Charges
AssetImpairmentCharges
0 USD
CY2018 us-gaap Gain Loss On Disposition Of Assets1
GainLossOnDispositionOfAssets1
301000000 USD
CY2017 us-gaap Gain Loss On Disposition Of Assets1
GainLossOnDispositionOfAssets1
42000000 USD
CY2019 us-gaap Other Noncash Income Expense
OtherNoncashIncomeExpense
-102000000 USD
CY2018 us-gaap Other Noncash Income Expense
OtherNoncashIncomeExpense
-14000000 USD
CY2017 us-gaap Other Noncash Income Expense
OtherNoncashIncomeExpense
63000000 USD
CY2019 us-gaap Increase Decrease In Receivables
IncreaseDecreaseInReceivables
-630000000 USD
CY2018 us-gaap Increase Decrease In Receivables
IncreaseDecreaseInReceivables
426000000 USD
CY2017 us-gaap Increase Decrease In Receivables
IncreaseDecreaseInReceivables
202000000 USD
CY2019 us-gaap Increase Decrease In Fossil Fuel Inventories
IncreaseDecreaseInFossilFuelInventories
120000000 USD
CY2018 us-gaap Increase Decrease In Fossil Fuel Inventories
IncreaseDecreaseInFossilFuelInventories
-123000000 USD
CY2017 us-gaap Increase Decrease In Fossil Fuel Inventories
IncreaseDecreaseInFossilFuelInventories
-36000000 USD
CY2019 so Increase Decreasein Energy Related Inventory Natural Gasin Storage
IncreaseDecreaseinEnergyRelatedInventoryNaturalGasinStorage
-44000000 USD
CY2018 so Increase Decreasein Energy Related Inventory Natural Gasin Storage
IncreaseDecreaseinEnergyRelatedInventoryNaturalGasinStorage
-49000000 USD
CY2017 so Increase Decreasein Energy Related Inventory Natural Gasin Storage
IncreaseDecreaseinEnergyRelatedInventoryNaturalGasinStorage
-36000000 USD
CY2019 us-gaap Increase Decrease In Other Operating Assets
IncreaseDecreaseInOtherOperatingAssets
-70000000 USD
CY2018 us-gaap Increase Decrease In Other Operating Assets
IncreaseDecreaseInOtherOperatingAssets
127000000 USD
CY2017 us-gaap Increase Decrease In Other Operating Assets
IncreaseDecreaseInOtherOperatingAssets
143000000 USD
CY2019 us-gaap Increase Decrease In Accounts Payable
IncreaseDecreaseInAccountsPayable
-693000000 USD
CY2018 us-gaap Increase Decrease In Accounts Payable
IncreaseDecreaseInAccountsPayable
291000000 USD
CY2017 us-gaap Increase Decrease In Accounts Payable
IncreaseDecreaseInAccountsPayable
-280000000 USD
CY2019 so Increase Decrease In Accrued Taxes
IncreaseDecreaseInAccruedTaxes
117000000 USD
CY2018 so Increase Decrease In Accrued Taxes
IncreaseDecreaseInAccruedTaxes
267000000 USD
CY2017 so Increase Decrease In Accrued Taxes
IncreaseDecreaseInAccruedTaxes
-142000000 USD
CY2019 us-gaap Increase Decrease In Accrued Salaries
IncreaseDecreaseInAccruedSalaries
-9000000 USD
CY2018 us-gaap Increase Decrease In Accrued Salaries
IncreaseDecreaseInAccruedSalaries
33000000 USD
CY2017 us-gaap Increase Decrease In Accrued Salaries
IncreaseDecreaseInAccruedSalaries
-8000000 USD
CY2019 so Increase Decrease Retail Fuel Cost Over Recovery Short Term
IncreaseDecreaseRetailFuelCostOverRecoveryShortTerm
-62000000 USD
CY2018 so Increase Decrease Retail Fuel Cost Over Recovery Short Term
IncreaseDecreaseRetailFuelCostOverRecoveryShortTerm
-36000000 USD
CY2017 so Increase Decrease Retail Fuel Cost Over Recovery Short Term
IncreaseDecreaseRetailFuelCostOverRecoveryShortTerm
212000000 USD
CY2019 us-gaap Increase Decrease In Other Operating Liabilities
IncreaseDecreaseInOtherOperatingLiabilities
61000000 USD
CY2018 us-gaap Increase Decrease In Other Operating Liabilities
IncreaseDecreaseInOtherOperatingLiabilities
30000000 USD
CY2017 us-gaap Increase Decrease In Other Operating Liabilities
IncreaseDecreaseInOtherOperatingLiabilities
-38000000 USD
CY2019 us-gaap Net Cash Provided By Used In Operating Activities
NetCashProvidedByUsedInOperatingActivities
5781000000 USD
CY2018 us-gaap Net Cash Provided By Used In Operating Activities
NetCashProvidedByUsedInOperatingActivities
6945000000 USD
CY2017 us-gaap Net Cash Provided By Used In Operating Activities
NetCashProvidedByUsedInOperatingActivities
6394000000 USD
CY2019 us-gaap Payments To Acquire Businesses Net Of Cash Acquired
PaymentsToAcquireBusinessesNetOfCashAcquired
50000000 USD
CY2018 us-gaap Payments To Acquire Businesses Net Of Cash Acquired
PaymentsToAcquireBusinessesNetOfCashAcquired
65000000 USD
CY2017 us-gaap Payments To Acquire Businesses Net Of Cash Acquired
PaymentsToAcquireBusinessesNetOfCashAcquired
1054000000 USD
CY2019 us-gaap Payments To Acquire Property Plant And Equipment
PaymentsToAcquirePropertyPlantAndEquipment
7555000000 USD
CY2018 us-gaap Payments To Acquire Property Plant And Equipment
PaymentsToAcquirePropertyPlantAndEquipment
8001000000 USD
CY2017 us-gaap Payments To Acquire Property Plant And Equipment
PaymentsToAcquirePropertyPlantAndEquipment
7423000000 USD
CY2019 so Proceeds From Guarantee Obligation
ProceedsFromGuaranteeObligation
0 USD
CY2018 so Proceeds From Guarantee Obligation
ProceedsFromGuaranteeObligation
0 USD
CY2017 so Proceeds From Guarantee Obligation
ProceedsFromGuaranteeObligation
1682000000 USD
CY2019 us-gaap Payments To Invest In Decommissioning Fund
PaymentsToInvestInDecommissioningFund
888000000 USD
CY2018 us-gaap Payments To Invest In Decommissioning Fund
PaymentsToInvestInDecommissioningFund
1117000000 USD
CY2017 us-gaap Payments To Invest In Decommissioning Fund
PaymentsToInvestInDecommissioningFund
811000000 USD
CY2019 us-gaap Proceeds From Decommissioning Fund
ProceedsFromDecommissioningFund
882000000 USD
CY2018 us-gaap Proceeds From Decommissioning Fund
ProceedsFromDecommissioningFund
1111000000 USD
CY2017 us-gaap Proceeds From Decommissioning Fund
ProceedsFromDecommissioningFund
805000000 USD
CY2019 us-gaap Proceeds From Divestiture Of Businesses Net Of Cash Divested
ProceedsFromDivestitureOfBusinessesNetOfCashDivested
5122000000 USD
CY2018 us-gaap Proceeds From Divestiture Of Businesses Net Of Cash Divested
ProceedsFromDivestitureOfBusinessesNetOfCashDivested
2956000000 USD
CY2017 us-gaap Proceeds From Divestiture Of Businesses Net Of Cash Divested
ProceedsFromDivestitureOfBusinessesNetOfCashDivested
97000000 USD
CY2019 us-gaap Payments For Removal Costs
PaymentsForRemovalCosts
393000000 USD
CY2018 us-gaap Payments For Removal Costs
PaymentsForRemovalCosts
388000000 USD
CY2017 us-gaap Payments For Removal Costs
PaymentsForRemovalCosts
313000000 USD
CY2019 so Change In Construction Payables
ChangeInConstructionPayables
-169000000 USD
CY2018 so Change In Construction Payables
ChangeInConstructionPayables
50000000 USD
CY2017 so Change In Construction Payables
ChangeInConstructionPayables
259000000 USD
CY2019 us-gaap Payments To Acquire Equity Method Investments
PaymentsToAcquireEquityMethodInvestments
148000000 USD
CY2018 us-gaap Payments To Acquire Equity Method Investments
PaymentsToAcquireEquityMethodInvestments
114000000 USD
CY2017 us-gaap Payments To Acquire Equity Method Investments
PaymentsToAcquireEquityMethodInvestments
152000000 USD
CY2019 so Prepaid Long Term Service Agreement
PrepaidLongTermServiceAgreement
234000000 USD
CY2018 so Prepaid Long Term Service Agreement
PrepaidLongTermServiceAgreement
186000000 USD
CY2017 so Prepaid Long Term Service Agreement
PrepaidLongTermServiceAgreement
227000000 USD
CY2019 us-gaap Payments For Proceeds From Other Investing Activities
PaymentsForProceedsFromOtherInvestingActivities
-41000000 USD
CY2018 us-gaap Payments For Proceeds From Other Investing Activities
PaymentsForProceedsFromOtherInvestingActivities
6000000 USD
CY2017 us-gaap Payments For Proceeds From Other Investing Activities
PaymentsForProceedsFromOtherInvestingActivities
53000000 USD
CY2019 us-gaap Net Cash Provided By Used In Investing Activities
NetCashProvidedByUsedInInvestingActivities
-3392000000 USD
CY2018 us-gaap Net Cash Provided By Used In Investing Activities
NetCashProvidedByUsedInInvestingActivities
-5760000000 USD
CY2017 us-gaap Net Cash Provided By Used In Investing Activities
NetCashProvidedByUsedInInvestingActivities
-7190000000 USD
CY2019 us-gaap Proceeds From Notes Payable
ProceedsFromNotesPayable
640000000 USD
CY2018 us-gaap Repayments Of Notes Payable
RepaymentsOfNotesPayable
774000000 USD
CY2017 us-gaap Repayments Of Notes Payable
RepaymentsOfNotesPayable
401000000 USD
CY2019 us-gaap Proceeds From Issuance Of Long Term Debt And Capital Securities Net
ProceedsFromIssuanceOfLongTermDebtAndCapitalSecuritiesNet
5220000000 USD
CY2018 us-gaap Proceeds From Issuance Of Long Term Debt And Capital Securities Net
ProceedsFromIssuanceOfLongTermDebtAndCapitalSecuritiesNet
2478000000 USD
CY2017 us-gaap Proceeds From Issuance Of Long Term Debt And Capital Securities Net
ProceedsFromIssuanceOfLongTermDebtAndCapitalSecuritiesNet
5858000000 USD
CY2019 us-gaap Proceeds From Issuance Of Common Stock
ProceedsFromIssuanceOfCommonStock
844000000 USD
CY2018 us-gaap Proceeds From Issuance Of Common Stock
ProceedsFromIssuanceOfCommonStock
1090000000 USD
CY2017 us-gaap Proceeds From Issuance Of Common Stock
ProceedsFromIssuanceOfCommonStock
793000000 USD
CY2019 us-gaap Proceeds From Issuance Of Preferred Stock And Preference Stock
ProceedsFromIssuanceOfPreferredStockAndPreferenceStock
0 USD
CY2018 us-gaap Proceeds From Issuance Of Preferred Stock And Preference Stock
ProceedsFromIssuanceOfPreferredStockAndPreferenceStock
0 USD
CY2017 us-gaap Proceeds From Issuance Of Preferred Stock And Preference Stock
ProceedsFromIssuanceOfPreferredStockAndPreferenceStock
250000000 USD
CY2019 us-gaap Proceeds From Short Term Debt
ProceedsFromShortTermDebt
350000000 USD
CY2018 us-gaap Proceeds From Short Term Debt
ProceedsFromShortTermDebt
3150000000 USD
CY2017 us-gaap Proceeds From Short Term Debt
ProceedsFromShortTermDebt
1259000000 USD
CY2019 us-gaap Repayments Of Long Term Debt And Capital Securities
RepaymentsOfLongTermDebtAndCapitalSecurities
4347000000 USD
CY2018 us-gaap Repayments Of Long Term Debt And Capital Securities
RepaymentsOfLongTermDebtAndCapitalSecurities
5533000000 USD
CY2017 us-gaap Repayments Of Long Term Debt And Capital Securities
RepaymentsOfLongTermDebtAndCapitalSecurities
2930000000 USD
CY2019 us-gaap Payments For Repurchase Of Preferred Stock And Preference Stock
PaymentsForRepurchaseOfPreferredStockAndPreferenceStock
0 USD
CY2018 us-gaap Payments For Repurchase Of Preferred Stock And Preference Stock
PaymentsForRepurchaseOfPreferredStockAndPreferenceStock
33000000 USD
CY2017 us-gaap Payments For Repurchase Of Preferred Stock And Preference Stock
PaymentsForRepurchaseOfPreferredStockAndPreferenceStock
658000000 USD
CY2019 us-gaap Repayments Of Short Term Debt
RepaymentsOfShortTermDebt
1850000000 USD
CY2018 us-gaap Repayments Of Short Term Debt
RepaymentsOfShortTermDebt
1900000000 USD
CY2017 us-gaap Repayments Of Short Term Debt
RepaymentsOfShortTermDebt
659000000 USD
CY2019 us-gaap Payments To Minority Shareholders
PaymentsToMinorityShareholders
256000000 USD
CY2018 us-gaap Payments To Minority Shareholders
PaymentsToMinorityShareholders
153000000 USD
CY2017 us-gaap Payments To Minority Shareholders
PaymentsToMinorityShareholders
119000000 USD
CY2019 us-gaap Proceeds From Minority Shareholders
ProceedsFromMinorityShareholders
196000000 USD
CY2018 us-gaap Proceeds From Minority Shareholders
ProceedsFromMinorityShareholders
2551000000 USD
CY2017 us-gaap Proceeds From Minority Shareholders
ProceedsFromMinorityShareholders
80000000 USD
CY2019 us-gaap Payments Of Dividends Common Stock
PaymentsOfDividendsCommonStock
2570000000 USD
CY2018 us-gaap Payments Of Dividends Common Stock
PaymentsOfDividendsCommonStock
2425000000 USD
CY2017 us-gaap Payments Of Dividends Common Stock
PaymentsOfDividendsCommonStock
2300000000 USD
CY2019 us-gaap Proceeds From Payments For Other Financing Activities
ProceedsFromPaymentsForOtherFinancingActivities
-157000000 USD
CY2018 us-gaap Proceeds From Payments For Other Financing Activities
ProceedsFromPaymentsForOtherFinancingActivities
-264000000 USD
CY2017 us-gaap Proceeds From Payments For Other Financing Activities
ProceedsFromPaymentsForOtherFinancingActivities
-222000000 USD
CY2019 us-gaap Net Cash Provided By Used In Financing Activities
NetCashProvidedByUsedInFinancingActivities
-1930000000 USD
CY2018 us-gaap Net Cash Provided By Used In Financing Activities
NetCashProvidedByUsedInFinancingActivities
-1813000000 USD
CY2017 us-gaap Net Cash Provided By Used In Financing Activities
NetCashProvidedByUsedInFinancingActivities
951000000 USD
CY2019 us-gaap Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Excluding Exchange Rate Effect
CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseExcludingExchangeRateEffect
459000000 USD
CY2018 us-gaap Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Excluding Exchange Rate Effect
CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseExcludingExchangeRateEffect
-628000000 USD
CY2017 us-gaap Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Excluding Exchange Rate Effect
CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseExcludingExchangeRateEffect
155000000 USD
CY2018Q4 us-gaap Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents
CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents
1519000000 USD
CY2017Q4 us-gaap Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents
CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents
2147000000 USD
CY2016Q4 us-gaap Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents
CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents
1992000000 USD
CY2019Q4 us-gaap Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents
CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents
1978000000 USD
CY2018Q4 us-gaap Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents
CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents
1519000000 USD
CY2017Q4 us-gaap Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents
CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents
2147000000 USD
CY2019 us-gaap Interest Paid Net
InterestPaidNet
1651000000 USD
CY2018 us-gaap Interest Paid Net
InterestPaidNet
1794000000 USD
CY2017 us-gaap Interest Paid Net
InterestPaidNet
1676000000 USD
CY2019 us-gaap Income Taxes Paid Net
IncomeTaxesPaidNet
276000000 USD
CY2018 us-gaap Income Taxes Paid Net
IncomeTaxesPaidNet
172000000 USD
CY2017 us-gaap Income Taxes Paid Net
IncomeTaxesPaidNet
-410000000 USD
CY2019 us-gaap Capital Expenditures Incurred But Not Yet Paid
CapitalExpendituresIncurredButNotYetPaid
932000000 USD
CY2018 us-gaap Capital Expenditures Incurred But Not Yet Paid
CapitalExpendituresIncurredButNotYetPaid
1103000000 USD
CY2017 us-gaap Capital Expenditures Incurred But Not Yet Paid
CapitalExpendituresIncurredButNotYetPaid
985000000 USD
CY2019Q4 us-gaap Cash And Cash Equivalents At Carrying Value
CashAndCashEquivalentsAtCarryingValue
1975000000 USD
CY2018Q4 us-gaap Cash And Cash Equivalents At Carrying Value
CashAndCashEquivalentsAtCarryingValue
1396000000 USD
CY2019Q4 us-gaap Accounts Receivable Gross Current
AccountsReceivableGrossCurrent
1614000000 USD
CY2018Q4 us-gaap Accounts Receivable Gross Current
AccountsReceivableGrossCurrent
1726000000 USD
CY2019Q4 us-gaap Energy Marketing Contracts Assets Current
EnergyMarketingContractsAssetsCurrent
428000000 USD
CY2018Q4 us-gaap Energy Marketing Contracts Assets Current
EnergyMarketingContractsAssetsCurrent
801000000 USD
CY2019Q4 so Unbilled Revenues Current
UnbilledRevenuesCurrent
599000000 USD
CY2018Q4 so Unbilled Revenues Current
UnbilledRevenuesCurrent
654000000 USD
CY2019Q4 so Under Recovered Regulatory Clause Revenues
UnderRecoveredRegulatoryClauseRevenues
0 USD
CY2018Q4 so Under Recovered Regulatory Clause Revenues
UnderRecoveredRegulatoryClauseRevenues
115000000 USD
CY2019Q4 so Other Accounts Notes And Loans Receivable
OtherAccountsNotesAndLoansReceivable
817000000 USD
CY2018Q4 so Other Accounts Notes And Loans Receivable
OtherAccountsNotesAndLoansReceivable
813000000 USD
CY2019Q4 us-gaap Allowance For Doubtful Accounts Receivable Current
AllowanceForDoubtfulAccountsReceivableCurrent
49000000 USD
CY2018Q4 us-gaap Allowance For Doubtful Accounts Receivable Current
AllowanceForDoubtfulAccountsReceivableCurrent
50000000 USD
CY2019Q4 us-gaap Other Inventory Supplies
OtherInventorySupplies
1388000000 USD
CY2018Q4 us-gaap Other Inventory Supplies
OtherInventorySupplies
1465000000 USD
CY2019Q4 us-gaap Energy Related Inventory Other Fossil Fuel
EnergyRelatedInventoryOtherFossilFuel
521000000 USD
CY2018Q4 us-gaap Energy Related Inventory Other Fossil Fuel
EnergyRelatedInventoryOtherFossilFuel
405000000 USD
CY2019Q4 us-gaap Energy Related Inventory Natural Gas In Storage
EnergyRelatedInventoryNaturalGasInStorage
479000000 USD
CY2018Q4 us-gaap Energy Related Inventory Natural Gas In Storage
EnergyRelatedInventoryNaturalGasInStorage
524000000 USD
CY2019Q4 us-gaap Prepaid Expense Current
PrepaidExpenseCurrent
314000000 USD
CY2018Q4 us-gaap Prepaid Expense Current
PrepaidExpenseCurrent
432000000 USD
CY2019Q4 us-gaap Derivative Assets Current
DerivativeAssetsCurrent
183000000 USD
CY2018Q4 us-gaap Derivative Assets Current
DerivativeAssetsCurrent
222000000 USD
CY2019Q4 so Regulatory Asset Asset Retirement Obligation Current
RegulatoryAssetAssetRetirementObligationCurrent
287000000 USD
CY2018Q4 so Regulatory Asset Asset Retirement Obligation Current
RegulatoryAssetAssetRetirementObligationCurrent
0 USD
CY2019Q4 so Other Regulatory Assets Current
OtherRegulatoryAssetsCurrent
885000000 USD
CY2018Q4 so Other Regulatory Assets Current
OtherRegulatoryAssetsCurrent
525000000 USD
CY2019Q4 us-gaap Assets Held For Sale Not Part Of Disposal Group Current
AssetsHeldForSaleNotPartOfDisposalGroupCurrent
188000000 USD
CY2018Q4 us-gaap Assets Held For Sale Not Part Of Disposal Group Current
AssetsHeldForSaleNotPartOfDisposalGroupCurrent
393000000 USD
CY2019Q4 us-gaap Other Assets Current
OtherAssetsCurrent
188000000 USD
CY2018Q4 us-gaap Other Assets Current
OtherAssetsCurrent
162000000 USD
CY2019Q4 us-gaap Assets Current
AssetsCurrent
9817000000 USD
CY2018Q4 us-gaap Assets Current
AssetsCurrent
9583000000 USD
CY2019Q4 us-gaap Property Plant And Equipment Gross
PropertyPlantAndEquipmentGross
105114000000 USD
CY2018Q4 us-gaap Property Plant And Equipment Gross
PropertyPlantAndEquipmentGross
103706000000 USD
CY2019Q4 us-gaap Accumulated Depreciation Depletion And Amortization Property Plant And Equipment
AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment
30765000000 USD
CY2018Q4 us-gaap Accumulated Depreciation Depletion And Amortization Property Plant And Equipment
AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment
31038000000 USD
CY2019Q4 so Plant In Service Net Of Depreciation
PlantInServiceNetOfDepreciation
74349000000 USD
CY2018Q4 so Plant In Service Net Of Depreciation
PlantInServiceNetOfDepreciation
72668000000 USD
CY2019Q4 so Nuclear Fuel At Amortized Cost
NuclearFuelAtAmortizedCost
851000000 USD
CY2018Q4 so Nuclear Fuel At Amortized Cost
NuclearFuelAtAmortizedCost
875000000 USD
CY2019Q4 us-gaap Construction In Progress Gross
ConstructionInProgressGross
7880000000 USD
CY2018Q4 us-gaap Construction In Progress Gross
ConstructionInProgressGross
7254000000 USD
CY2019Q4 us-gaap Property Plant And Equipment Net
PropertyPlantAndEquipmentNet
83080000000 USD
CY2018Q4 us-gaap Property Plant And Equipment Net
PropertyPlantAndEquipmentNet
80797000000 USD
CY2019Q4 us-gaap Goodwill
Goodwill
5280000000 USD
CY2018Q4 us-gaap Goodwill
Goodwill
5315000000 USD
CY2019Q4 us-gaap Equity Method Investments
EquityMethodInvestments
1303000000 USD
CY2018Q4 us-gaap Equity Method Investments
EquityMethodInvestments
1580000000 USD
CY2019Q4 us-gaap Intangible Assets Net Excluding Goodwill
IntangibleAssetsNetExcludingGoodwill
536000000 USD
CY2018Q4 us-gaap Intangible Assets Net Excluding Goodwill
IntangibleAssetsNetExcludingGoodwill
613000000 USD
CY2019Q4 us-gaap Decommissioning Fund Investments
DecommissioningFundInvestments
2036000000 USD
CY2018Q4 us-gaap Decommissioning Fund Investments
DecommissioningFundInvestments
1721000000 USD
CY2019Q4 us-gaap Leveraged Leases Balance Sheet Investment In Leveraged Leases Net
LeveragedLeasesBalanceSheetInvestmentInLeveragedLeasesNet
788000000 USD
CY2018Q4 us-gaap Leveraged Leases Balance Sheet Investment In Leveraged Leases Net
LeveragedLeasesBalanceSheetInvestmentInLeveragedLeasesNet
798000000 USD
CY2019Q4 us-gaap Other Long Term Investments
OtherLongTermInvestments
391000000 USD
CY2018Q4 us-gaap Other Long Term Investments
OtherLongTermInvestments
269000000 USD
CY2019Q4 us-gaap Long Term Investments
LongTermInvestments
10334000000 USD
CY2018Q4 us-gaap Long Term Investments
LongTermInvestments
10296000000 USD
CY2019Q4 us-gaap Operating Lease Right Of Use Asset
OperatingLeaseRightOfUseAsset
1800000000 USD
CY2019Q4 so Deferred Charges Related To Income Taxes
DeferredChargesRelatedToIncomeTaxes
798000000 USD
CY2018Q4 so Deferred Charges Related To Income Taxes
DeferredChargesRelatedToIncomeTaxes
794000000 USD
CY2019Q4 us-gaap Unamortized Loss Reacquired Debt Noncurrent
UnamortizedLossReacquiredDebtNoncurrent
300000000 USD
CY2018Q4 us-gaap Unamortized Loss Reacquired Debt Noncurrent
UnamortizedLossReacquiredDebtNoncurrent
323000000 USD
CY2019Q4 so Regulatory Asset Asset Retirement Obligation
RegulatoryAssetAssetRetirementObligation
4094000000 USD
CY2018Q4 so Regulatory Asset Asset Retirement Obligation
RegulatoryAssetAssetRetirementObligation
2933000000 USD
CY2019Q4 so Other Regulatory Assets Deferred
OtherRegulatoryAssetsDeferred
6805000000 USD
CY2018Q4 so Other Regulatory Assets Deferred
OtherRegulatoryAssetsDeferred
5375000000 USD
CY2019Q4 us-gaap Disposal Group Including Discontinued Operation Assets Noncurrent
DisposalGroupIncludingDiscontinuedOperationAssetsNoncurrent
601000000 USD
CY2018Q4 us-gaap Disposal Group Including Discontinued Operation Assets Noncurrent
DisposalGroupIncludingDiscontinuedOperationAssetsNoncurrent
5350000000 USD
CY2019Q4 us-gaap Other Assets Noncurrent
OtherAssetsNoncurrent
1071000000 USD
CY2018Q4 us-gaap Other Assets Noncurrent
OtherAssetsNoncurrent
1463000000 USD
CY2019Q4 so Deferred Charges And Other Assets
DeferredChargesAndOtherAssets
15469000000 USD
CY2018Q4 so Deferred Charges And Other Assets
DeferredChargesAndOtherAssets
16238000000 USD
CY2019Q4 us-gaap Assets
Assets
118700000000 USD
CY2018Q4 us-gaap Assets
Assets
116914000000 USD
CY2019Q4 us-gaap Long Term Debt And Capital Lease Obligations Current
LongTermDebtAndCapitalLeaseObligationsCurrent
2989000000 USD
CY2018Q4 us-gaap Long Term Debt And Capital Lease Obligations Current
LongTermDebtAndCapitalLeaseObligationsCurrent
3198000000 USD
CY2019Q4 us-gaap Short Term Borrowings
ShortTermBorrowings
2055000000 USD
CY2018Q4 us-gaap Short Term Borrowings
ShortTermBorrowings
2915000000 USD
CY2019Q4 us-gaap Energy Marketing Contract Liabilities Current
EnergyMarketingContractLiabilitiesCurrent
442000000 USD
CY2018Q4 us-gaap Energy Marketing Contract Liabilities Current
EnergyMarketingContractLiabilitiesCurrent
856000000 USD
CY2019Q4 us-gaap Accounts Payable Current
AccountsPayableCurrent
2115000000 USD
CY2018Q4 us-gaap Accounts Payable Current
AccountsPayableCurrent
2580000000 USD
CY2019Q4 so Customer Deposits Current1
CustomerDepositsCurrent1
496000000 USD
CY2018Q4 so Customer Deposits Current1
CustomerDepositsCurrent1
522000000 USD
CY2019Q4 us-gaap Accrued Income Taxes Current
AccruedIncomeTaxesCurrent
0 USD
CY2018Q4 us-gaap Accrued Income Taxes Current
AccruedIncomeTaxesCurrent
21000000 USD
CY2019Q4 us-gaap Accrual For Taxes Other Than Income Taxes Current
AccrualForTaxesOtherThanIncomeTaxesCurrent
659000000 USD
CY2018Q4 us-gaap Accrual For Taxes Other Than Income Taxes Current
AccrualForTaxesOtherThanIncomeTaxesCurrent
635000000 USD
CY2019Q4 us-gaap Interest Payable Current
InterestPayableCurrent
474000000 USD
CY2018Q4 us-gaap Interest Payable Current
InterestPayableCurrent
472000000 USD
CY2019Q4 us-gaap Accrued Salaries Current
AccruedSalariesCurrent
992000000 USD
CY2018Q4 us-gaap Accrued Salaries Current
AccruedSalariesCurrent
1030000000 USD
CY2019Q4 us-gaap Asset Retirement Obligation Current
AssetRetirementObligationCurrent
504000000 USD
CY2018Q4 us-gaap Asset Retirement Obligation Current
AssetRetirementObligationCurrent
404000000 USD
CY2019Q4 so Other Regulatory Liabilities Current
OtherRegulatoryLiabilitiesCurrent
756000000 USD
CY2018Q4 so Other Regulatory Liabilities Current
OtherRegulatoryLiabilitiesCurrent
376000000 USD
CY2019Q4 so Liabilities Held For Sale Current
LiabilitiesHeldForSaleCurrent
5000000 USD
CY2018Q4 so Liabilities Held For Sale Current
LiabilitiesHeldForSaleCurrent
425000000 USD
CY2019Q4 us-gaap Operating Lease Liability Current
OperatingLeaseLiabilityCurrent
229000000 USD
CY2019Q4 us-gaap Other Liabilities Current
OtherLiabilitiesCurrent
830000000 USD
CY2018Q4 us-gaap Other Liabilities Current
OtherLiabilitiesCurrent
852000000 USD
CY2019Q4 us-gaap Liabilities Current
LiabilitiesCurrent
12546000000 USD
CY2018Q4 us-gaap Liabilities Current
LiabilitiesCurrent
14286000000 USD
CY2019Q4 us-gaap Long Term Debt And Capital Lease Obligations
LongTermDebtAndCapitalLeaseObligations
41798000000 USD
CY2018Q4 us-gaap Long Term Debt And Capital Lease Obligations
LongTermDebtAndCapitalLeaseObligations
40736000000 USD
CY2019Q4 us-gaap Deferred Income Tax Liabilities Net
DeferredIncomeTaxLiabilitiesNet
7888000000 USD
CY2018Q4 us-gaap Deferred Income Tax Liabilities Net
DeferredIncomeTaxLiabilitiesNet
6558000000 USD
CY2019Q4 so Deferred Credits Related To Income Taxes
DeferredCreditsRelatedToIncomeTaxes
6078000000 USD
CY2018Q4 so Deferred Credits Related To Income Taxes
DeferredCreditsRelatedToIncomeTaxes
6460000000 USD
CY2019Q4 us-gaap Accumulated Deferred Investment Tax Credit
AccumulatedDeferredInvestmentTaxCredit
2291000000 USD
CY2018Q4 us-gaap Accumulated Deferred Investment Tax Credit
AccumulatedDeferredInvestmentTaxCredit
2372000000 USD
CY2019Q4 us-gaap Pension And Other Postretirement Defined Benefit Plans Liabilities Noncurrent
PensionAndOtherPostretirementDefinedBenefitPlansLiabilitiesNoncurrent
1814000000 USD
CY2018Q4 us-gaap Pension And Other Postretirement Defined Benefit Plans Liabilities Noncurrent
PensionAndOtherPostretirementDefinedBenefitPlansLiabilitiesNoncurrent
2147000000 USD
CY2019Q4 us-gaap Operating Lease Liability Noncurrent
OperatingLeaseLiabilityNoncurrent
1615000000 USD
CY2019Q4 us-gaap Asset Retirement Obligations Noncurrent
AssetRetirementObligationsNoncurrent
9282000000 USD
CY2018Q4 us-gaap Asset Retirement Obligations Noncurrent
AssetRetirementObligationsNoncurrent
8990000000 USD
CY2019Q4 us-gaap Accrued Environmental Loss Contingencies Noncurrent
AccruedEnvironmentalLossContingenciesNoncurrent
234000000 USD
CY2018Q4 us-gaap Accrued Environmental Loss Contingencies Noncurrent
AccruedEnvironmentalLossContingenciesNoncurrent
268000000 USD
CY2019Q4 so Other Cost Of Removal Obligations
OtherCostOfRemovalObligations
2239000000 USD
CY2018Q4 so Other Cost Of Removal Obligations
OtherCostOfRemovalObligations
2297000000 USD
CY2019Q4 so Other Regulatory Liabilities Deferred
OtherRegulatoryLiabilitiesDeferred
256000000 USD
CY2018Q4 so Other Regulatory Liabilities Deferred
OtherRegulatoryLiabilitiesDeferred
169000000 USD
CY2019Q4 so Liabilities Held For Sale Noncurrent
LiabilitiesHeldForSaleNoncurrent
0 USD
CY2018Q4 so Liabilities Held For Sale Noncurrent
LiabilitiesHeldForSaleNoncurrent
2836000000 USD
CY2019Q4 us-gaap Other Liabilities Noncurrent
OtherLiabilitiesNoncurrent
609000000 USD
CY2018Q4 us-gaap Other Liabilities Noncurrent
OtherLiabilitiesNoncurrent
465000000 USD
CY2019Q4 us-gaap Deferred Credits And Other Liabilities
DeferredCreditsAndOtherLiabilities
32306000000 USD
CY2018Q4 us-gaap Deferred Credits And Other Liabilities
DeferredCreditsAndOtherLiabilities
32562000000 USD
CY2019Q4 us-gaap Liabilities
Liabilities
86650000000 USD
CY2018Q4 us-gaap Liabilities
Liabilities
87584000000 USD
CY2019Q4 us-gaap Temporary Equity Carrying Amount Attributable To Parent
TemporaryEquityCarryingAmountAttributableToParent
291000000 USD
CY2018Q4 us-gaap Temporary Equity Carrying Amount Attributable To Parent
TemporaryEquityCarryingAmountAttributableToParent
291000000 USD
CY2019Q4 us-gaap Stockholders Equity Including Portion Attributable To Noncontrolling Interest
StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest
31759000000 USD
CY2018Q4 us-gaap Stockholders Equity Including Portion Attributable To Noncontrolling Interest
StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest
29039000000 USD
CY2019Q4 us-gaap Liabilities And Stockholders Equity
LiabilitiesAndStockholdersEquity
118700000000 USD
CY2018Q4 us-gaap Liabilities And Stockholders Equity
LiabilitiesAndStockholdersEquity
116914000000 USD
CY2019Q4 us-gaap Commitments And Contingencies
CommitmentsAndContingencies
USD
CY2018Q4 us-gaap Commitments And Contingencies
CommitmentsAndContingencies
USD
CY2019Q4 so Long Term Senior Notes And Debt
LongTermSeniorNotesAndDebt
30377000000 USD
CY2018Q4 so Long Term Senior Notes And Debt
LongTermSeniorNotesAndDebt
34025000000 USD
CY2019Q4 us-gaap Other Long Term Debt
OtherLongTermDebt
13947000000 USD
CY2018Q4 us-gaap Other Long Term Debt
OtherLongTermDebt
10684000000 USD
CY2019Q4 so Unamortized Fair Value Adjustmentof Longterm Debt
UnamortizedFairValueAdjustmentofLongtermDebt
430000000 USD
CY2018Q4 so Unamortized Fair Value Adjustmentof Longterm Debt
UnamortizedFairValueAdjustmentofLongtermDebt
474000000 USD
CY2019Q4 us-gaap Finance Lease Liability
FinanceLeaseLiability
226000000 USD
CY2018Q4 us-gaap Capital Lease Obligations
CapitalLeaseObligations
197000000 USD
CY2019Q4 us-gaap Debt Instrument Unamortized Discount Premium Net
DebtInstrumentUnamortizedDiscountPremiumNet
-152000000 USD
CY2018Q4 us-gaap Debt Instrument Unamortized Discount Premium Net
DebtInstrumentUnamortizedDiscountPremiumNet
-158000000 USD
CY2019Q4 us-gaap Unamortized Debt Issuance Expense
UnamortizedDebtIssuanceExpense
247000000 USD
CY2018Q4 us-gaap Unamortized Debt Issuance Expense
UnamortizedDebtIssuanceExpense
208000000 USD
CY2019Q4 so Long Term Debtand Finance Lease Obligation Net
LongTermDebtandFinanceLeaseObligationNet
44787000000 USD
CY2018Q4 so Long Term Debtand Finance Lease Obligation Net
LongTermDebtandFinanceLeaseObligationNet
45220000000 USD
CY2019Q4 us-gaap Long Term Debt And Capital Lease Obligations Current
LongTermDebtAndCapitalLeaseObligationsCurrent
2989000000 USD
CY2018Q4 us-gaap Long Term Debt And Capital Lease Obligations Current
LongTermDebtAndCapitalLeaseObligationsCurrent
3198000000 USD
CY2019Q4 so Long Term Debt And Capital Lease Obligations Held For Sale
LongTermDebtAndCapitalLeaseObligationsHeldForSale
0 USD
CY2018Q4 so Long Term Debt And Capital Lease Obligations Held For Sale
LongTermDebtAndCapitalLeaseObligationsHeldForSale
1286000000 USD
CY2019Q4 us-gaap Long Term Debt And Capital Lease Obligations
LongTermDebtAndCapitalLeaseObligations
41798000000 USD
CY2018Q4 us-gaap Long Term Debt And Capital Lease Obligations
LongTermDebtAndCapitalLeaseObligations
40736000000 USD
CY2019Q4 so Long Term Debt And Capital Lease Obligations In Percent Of Capitalization
LongTermDebtAndCapitalLeaseObligationsInPercentOfCapitalization
0.566
CY2018Q4 so Long Term Debt And Capital Lease Obligations In Percent Of Capitalization
LongTermDebtAndCapitalLeaseObligationsInPercentOfCapitalization
0.581
CY2019Q4 us-gaap Temporary Equity Carrying Amount Attributable To Parent
TemporaryEquityCarryingAmountAttributableToParent
291000000 USD
CY2018Q4 us-gaap Temporary Equity Carrying Amount Attributable To Parent
TemporaryEquityCarryingAmountAttributableToParent
291000000 USD
CY2019Q4 so Temporary Equity Carrying Amount In Percent Of Capitalization
TemporaryEquityCarryingAmountInPercentOfCapitalization
0.004
CY2018Q4 so Temporary Equity Carrying Amount In Percent Of Capitalization
TemporaryEquityCarryingAmountInPercentOfCapitalization
0.004
CY2019Q4 us-gaap Common Stock Value
CommonStockValue
5257000000 USD
CY2018Q4 us-gaap Common Stock Value
CommonStockValue
5164000000 USD
CY2019Q4 us-gaap Additional Paid In Capital Common Stock
AdditionalPaidInCapitalCommonStock
11734000000 USD
CY2018Q4 us-gaap Additional Paid In Capital Common Stock
AdditionalPaidInCapitalCommonStock
11094000000 USD
CY2019Q4 us-gaap Treasury Stock Value
TreasuryStockValue
42000000 USD
CY2018Q4 us-gaap Treasury Stock Value
TreasuryStockValue
38000000 USD
CY2019Q4 us-gaap Retained Earnings Accumulated Deficit
RetainedEarningsAccumulatedDeficit
10877000000 USD
CY2018Q4 us-gaap Retained Earnings Accumulated Deficit
RetainedEarningsAccumulatedDeficit
8706000000 USD
CY2019Q4 us-gaap Accumulated Other Comprehensive Income Loss Net Of Tax
AccumulatedOtherComprehensiveIncomeLossNetOfTax
-321000000 USD
CY2018Q4 us-gaap Accumulated Other Comprehensive Income Loss Net Of Tax
AccumulatedOtherComprehensiveIncomeLossNetOfTax
-203000000 USD
CY2019Q4 us-gaap Stockholders Equity
StockholdersEquity
27505000000 USD
CY2018Q4 us-gaap Stockholders Equity
StockholdersEquity
24723000000 USD
CY2019Q4 so Common Stockholders Equity In Percent Of Capitalization
CommonStockholdersEquityInPercentOfCapitalization
0.372
CY2018Q4 so Common Stockholders Equity In Percent Of Capitalization
CommonStockholdersEquityInPercentOfCapitalization
0.353
CY2019Q4 so Minority Interest In Percent Of Capitalization
MinorityInterestInPercentOfCapitalization
0.058
CY2018Q4 so Minority Interest In Percent Of Capitalization
MinorityInterestInPercentOfCapitalization
0.062
CY2019Q4 us-gaap Stockholders Equity Including Portion Attributable To Noncontrolling Interest
StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest
31759000000 USD
CY2018Q4 us-gaap Stockholders Equity Including Portion Attributable To Noncontrolling Interest
StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest
29039000000 USD
CY2019Q4 us-gaap Capitalization Longterm Debt And Equity
CapitalizationLongtermDebtAndEquity
73848000000 USD
CY2018Q4 us-gaap Capitalization Longterm Debt And Equity
CapitalizationLongtermDebtAndEquity
70066000000 USD
CY2019Q4 so Capitalization In Percent
CapitalizationInPercent
1.000
CY2018Q4 so Capitalization In Percent
CapitalizationInPercent
1.000
CY2016Q4 us-gaap Stockholders Equity Including Portion Attributable To Noncontrolling Interest
StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest
26612000000 USD
CY2017 us-gaap Net Income Loss Available To Common Stockholders Basic
NetIncomeLossAvailableToCommonStockholdersBasic
842000000 USD
CY2017 us-gaap Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent
OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent
-9000000 USD
CY2017 us-gaap Stock Issued During Period Value New Issues
StockIssuedDuringPeriodValueNewIssues
793000000 USD
CY2019 so Share Based Compensation Arrangement By Share Based Payment Award Number Of Shares Reserved For Issuance Pursuant To Stock Based Compensation Plan
ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesReservedForIssuancePursuantToStockBasedCompensationPlan
104000000 shares
CY2017 us-gaap Adjustments To Additional Paid In Capital Sharebased Compensation Requisite Service Period Recognition Value
AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue
105000000 USD
CY2017 us-gaap Dividends Common Stock Cash
DividendsCommonStockCash
2300000000 USD
CY2017 us-gaap Stock Redeemed Or Called During Period Value
StockRedeemedOrCalledDuringPeriodValue
609000000 USD
CY2017 so Noncontrolling Interest Increasefrom Contributionsfrom Noncontrolling Interest Holders
NoncontrollingInterestIncreasefromContributionsfromNoncontrollingInterestHolders
79000000 USD
CY2017 us-gaap Minority Interest Decrease From Distributions To Noncontrolling Interest Holders
MinorityInterestDecreaseFromDistributionsToNoncontrollingInterestHolders
122000000 USD
CY2017 us-gaap Noncontrolling Interest In Net Income Loss Other Noncontrolling Interests Redeemable
NoncontrollingInterestInNetIncomeLossOtherNoncontrollingInterestsRedeemable
-44000000 USD
CY2017 so Reclassificationfrom Redeemable Noncontrolling Interests
ReclassificationfromRedeemableNoncontrollingInterests
114000000 USD
CY2017 us-gaap Stockholders Equity Other
StockholdersEquityOther
21000000 USD
CY2017Q4 us-gaap Stockholders Equity Including Portion Attributable To Noncontrolling Interest
StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest
25528000000 USD
CY2018 us-gaap Net Income Loss Available To Common Stockholders Basic
NetIncomeLossAvailableToCommonStockholdersBasic
2226000000 USD
CY2018 us-gaap Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent
OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent
26000000 USD
CY2018 us-gaap Stock Issued During Period Value New Issues
StockIssuedDuringPeriodValueNewIssues
1090000000 USD
CY2018 us-gaap Adjustments To Additional Paid In Capital Sharebased Compensation Requisite Service Period Recognition Value
AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue
84000000 USD
CY2018 us-gaap Dividends Common Stock Cash
DividendsCommonStockCash
2425000000 USD
CY2018 so Noncontrolling Interest Increasefrom Contributionsfrom Noncontrolling Interest Holders
NoncontrollingInterestIncreasefromContributionsfromNoncontrollingInterestHolders
1372000000 USD
CY2018 us-gaap Minority Interest Decrease From Distributions To Noncontrolling Interest Holders
MinorityInterestDecreaseFromDistributionsToNoncontrollingInterestHolders
164000000 USD
CY2018 us-gaap Noncontrolling Interest In Net Income Loss Other Noncontrolling Interests Redeemable
NoncontrollingInterestInNetIncomeLossOtherNoncontrollingInterestsRedeemable
-58000000 USD
CY2018 so Noncontrolling Interest Increase Decrease From Sale Of Parent Equity Interest
NoncontrollingInterestIncreaseDecreaseFromSaleOfParentEquityInterest
1273000000 USD
CY2018 us-gaap Stockholders Equity Other
StockholdersEquityOther
29000000 USD
CY2018Q4 us-gaap Stockholders Equity Including Portion Attributable To Noncontrolling Interest
StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest
29039000000 USD
CY2019 us-gaap Net Income Loss Available To Common Stockholders Basic
NetIncomeLossAvailableToCommonStockholdersBasic
4739000000 USD
CY2019 us-gaap Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent
OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent
-118000000 USD
CY2019 so Adjustments To Additional Paid In Capital Contract Adjustment Payments
AdjustmentsToAdditionalPaidInCapitalContractAdjustmentPayments
198000000 USD
CY2019 us-gaap Stock Issued During Period Value New Issues
StockIssuedDuringPeriodValueNewIssues
844000000 USD
CY2019 us-gaap Adjustments To Additional Paid In Capital Sharebased Compensation Requisite Service Period Recognition Value
AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue
66000000 USD
CY2019 us-gaap Dividends Common Stock Cash
DividendsCommonStockCash
2570000000 USD
CY2019 so Noncontrolling Interest Increasefrom Contributionsfrom Noncontrolling Interest Holders
NoncontrollingInterestIncreasefromContributionsfromNoncontrollingInterestHolders
276000000 USD
CY2019 us-gaap Minority Interest Decrease From Distributions To Noncontrolling Interest Holders
MinorityInterestDecreaseFromDistributionsToNoncontrollingInterestHolders
327000000 USD
CY2019 us-gaap Noncontrolling Interest In Net Income Loss Other Noncontrolling Interests Redeemable
NoncontrollingInterestInNetIncomeLossOtherNoncontrollingInterestsRedeemable
10000000 USD
CY2019 us-gaap Stockholders Equity Other
StockholdersEquityOther
-18000000 USD
CY2019Q4 us-gaap Stockholders Equity Including Portion Attributable To Noncontrolling Interest
StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest
31759000000 USD
CY2019Q4 so Number Of Traditional Electric Operating Companies
NumberOfTraditionalElectricOperatingCompanies
3 electric_company
CY2019 us-gaap Public Utilities Allowance For Funds Used During Construction Capitalized Interest
PublicUtilitiesAllowanceForFundsUsedDuringConstructionCapitalizedInterest
202000000 USD
CY2018 us-gaap Public Utilities Allowance For Funds Used During Construction Capitalized Interest
PublicUtilitiesAllowanceForFundsUsedDuringConstructionCapitalizedInterest
210000000 USD
CY2017 us-gaap Public Utilities Allowance For Funds Used During Construction Capitalized Interest
PublicUtilitiesAllowanceForFundsUsedDuringConstructionCapitalizedInterest
249000000 USD
CY2019Q4 us-gaap Goodwill
Goodwill
5280000000 USD
CY2018Q4 us-gaap Goodwill
Goodwill
5315000000 USD
CY2019Q4 us-gaap Finite Lived Intangible Assets Gross
FiniteLivedIntangibleAssetsGross
741000000 USD
CY2019Q4 us-gaap Finite Lived Intangible Assets Accumulated Amortization
FiniteLivedIntangibleAssetsAccumulatedAmortization
280000000 USD
CY2019Q4 us-gaap Finite Lived Intangible Assets Net
FiniteLivedIntangibleAssetsNet
461000000 USD
CY2018Q4 us-gaap Finite Lived Intangible Assets Gross
FiniteLivedIntangibleAssetsGross
773000000 USD
CY2018Q4 us-gaap Finite Lived Intangible Assets Accumulated Amortization
FiniteLivedIntangibleAssetsAccumulatedAmortization
235000000 USD
CY2018Q4 us-gaap Finite Lived Intangible Assets Net
FiniteLivedIntangibleAssetsNet
538000000 USD
CY2019Q4 us-gaap Intangible Assets Gross Excluding Goodwill
IntangibleAssetsGrossExcludingGoodwill
816000000 USD
CY2019Q4 us-gaap Finite Lived Intangible Assets Accumulated Amortization
FiniteLivedIntangibleAssetsAccumulatedAmortization
280000000 USD
CY2019Q4 us-gaap Intangible Assets Net Excluding Goodwill
IntangibleAssetsNetExcludingGoodwill
536000000 USD
CY2018Q4 us-gaap Intangible Assets Gross Excluding Goodwill
IntangibleAssetsGrossExcludingGoodwill
848000000 USD
CY2018Q4 us-gaap Finite Lived Intangible Assets Accumulated Amortization
FiniteLivedIntangibleAssetsAccumulatedAmortization
235000000 USD
CY2018Q4 us-gaap Intangible Assets Net Excluding Goodwill
IntangibleAssetsNetExcludingGoodwill
613000000 USD
CY2019 us-gaap Amortization Of Intangible Assets
AmortizationOfIntangibleAssets
61000000 USD
CY2018 us-gaap Amortization Of Intangible Assets
AmortizationOfIntangibleAssets
89000000 USD
CY2017 us-gaap Amortization Of Intangible Assets
AmortizationOfIntangibleAssets
124000000 USD
CY2019Q4 us-gaap Finite Lived Intangible Assets Amortization Expense Next Twelve Months
FiniteLivedIntangibleAssetsAmortizationExpenseNextTwelveMonths
48000000 USD
CY2019Q4 us-gaap Finite Lived Intangible Assets Amortization Expense Year Two
FiniteLivedIntangibleAssetsAmortizationExpenseYearTwo
42000000 USD
CY2019Q4 us-gaap Finite Lived Intangible Assets Amortization Expense Year Three
FiniteLivedIntangibleAssetsAmortizationExpenseYearThree
38000000 USD
CY2019Q4 us-gaap Finite Lived Intangible Assets Amortization Expense Year Four
FiniteLivedIntangibleAssetsAmortizationExpenseYearFour
37000000 USD
CY2019Q4 us-gaap Finite Lived Intangible Assets Amortization Expense Year Five
FiniteLivedIntangibleAssetsAmortizationExpenseYearFive
35000000 USD
CY2019 us-gaap Property Plant And Equipment Preproduction Design And Development Costs
PropertyPlantAndEquipmentPreproductionDesignAndDevelopmentCosts
<div style="line-height:120%;padding-top:12px;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;font-weight:bold;">Development Costs</span></div><div style="line-height:120%;padding-top:6px;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;">For Southern Power, development costs are capitalized once a project is probable of completion, primarily based on a review of its economics and operational feasibility, as well as the status of power off-take agreements and regulatory approvals, if applicable. Southern Power's capitalized development costs are included in CWIP on the balance sheets. All of Southern Power's development costs incurred prior to the determination that a project is probable of completion are expensed as incurred and included in other operations and maintenance expense in the statements of income. If it is determined that a project is no longer probable of completion, any of Southern Power's capitalized development costs are expensed and included in other operations and maintenance expense in the statements of income.</span></div>
CY2019Q4 us-gaap Cash And Cash Equivalents At Carrying Value
CashAndCashEquivalentsAtCarryingValue
1975000000 USD
CY2019Q4 us-gaap Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents
CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents
1978000000 USD
CY2018Q4 us-gaap Cash And Cash Equivalents At Carrying Value
CashAndCashEquivalentsAtCarryingValue
1396000000 USD
CY2018Q4 us-gaap Restricted Cash
RestrictedCash
0 USD
CY2018Q4 us-gaap Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents
CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents
1519000000 USD
CY2019Q4 so Number Of Leveraged Leases
NumberOfLeveragedLeases
1 leveraged_lease
CY2019Q4 so Number Of Leveraged Leases
NumberOfLeveragedLeases
1 leveraged_lease
CY2019Q4 so Required Collateral Credit Rating Downgrade
RequiredCollateralCreditRatingDowngrade
11000000 USD
CY2018Q4 so Required Collateral Credit Rating Downgrade
RequiredCollateralCreditRatingDowngrade
30000000 USD
CY2019 so Uncollectible Accounts
UncollectibleAccounts
0.01
CY2019 us-gaap Concentration Risk Credit Risk
ConcentrationRiskCreditRisk
<div style="line-height:120%;padding-top:12px;text-align:left;font-size:10pt;"><span style="font-weight:bold;">Concentration of Credit Risk</span></div><div style="line-height:120%;padding-top:6px;text-align:left;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;">Southern Company Gas' wholesale gas services business has a concentration of credit risk for services it provides to its counterparties. This credit risk is generally concentrated in </span><span style="font-family:inherit;font-size:10pt;"><span>20</span></span><span style="font-family:inherit;font-size:10pt;"> of its counterparties and is measured by </span><span style="font-family:inherit;font-size:10pt;"><span>30</span></span><span style="font-family:inherit;font-size:10pt;">-day receivable exposure plus forward exposure. Counterparty credit risk is evaluated using a S&amp;P equivalent credit rating, which is determined by a process of converting the lower of the S&amp;P or Moody's rating to an internal rating ranging from </span><span style="font-family:inherit;font-size:10pt;">9</span><span style="font-family:inherit;font-size:10pt;"> to </span><span style="font-family:inherit;font-size:10pt;">1</span><span style="font-family:inherit;font-size:10pt;">, with </span><span style="font-family:inherit;font-size:10pt;">9</span><span style="font-family:inherit;font-size:10pt;"> being equivalent to AAA/Aaa by S&amp;P and Moody's, respectively, and 1 being equivalent to D/Default by S&amp;P and Moody's, respectively. A counterparty that does not have an external rating is assigned an internal rating based on the strength of its financial ratios. As of </span><span style="font-family:inherit;font-size:10pt;">December 31, 2019</span><span style="font-family:inherit;font-size:10pt;">, the top </span><span style="font-family:inherit;font-size:10pt;"><span>20</span></span><span style="font-family:inherit;font-size:10pt;"> counterparties represented </span><span style="font-family:inherit;font-size:10pt;"><span>59%</span></span><span style="font-family:inherit;font-size:10pt;">, or </span><span style="font-family:inherit;font-size:10pt;"><span>$218 million</span></span><span style="font-family:inherit;font-size:10pt;">, of the total counterparty exposure and had a weighted average S&amp;P equivalent rating of A-.</span></div><div style="line-height:120%;padding-top:6px;text-align:left;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;">Concentration of credit risk occurs at Atlanta Gas Light for amounts billed for services and other costs to its customers, which consist of </span><span style="font-family:inherit;font-size:10pt;"><span>16</span></span><span style="font-family:inherit;font-size:10pt;"> Marketers in Georgia (including SouthStar). The credit risk exposure to Marketers varies seasonally, with the lowest exposure in the non-peak summer months and the highest exposure in the peak winter months. Marketers are responsible for the retail sale of natural gas to end-use customers in Georgia. The functions of the retail sale of gas include the purchase and sale of natural gas, customer service, billings, and collections. The provisions of Atlanta Gas Light's tariff allow Atlanta Gas Light to obtain credit security support in an amount equal to a minimum of </span><span style="font-family:inherit;font-size:10pt;"><span>two</span></span><span style="font-family:inherit;font-size:10pt;"> times a Marketer's highest month's estimated bill from Atlanta Gas Light.</span></div>
CY2019Q4 us-gaap Net Regulatory Assets
NetRegulatoryAssets
3838000000 USD
CY2018Q4 us-gaap Net Regulatory Assets
NetRegulatoryAssets
720000000 USD
CY2019 so Contract With Customer Liability Bill Credits
ContractWithCustomerLiabilityBillCredits
50000000 USD
CY2018Q4 us-gaap Loss Contingency Number Of Plaintiffs
LossContingencyNumberOfPlaintiffs
10 plaintiff
CY2019 so Maximum Fund Provided For Public Liability Claims
MaximumFundProvidedForPublicLiabilityClaims
13900000000 USD
CY2019 so Maximum Insurance Coverage
MaximumInsuranceCoverage
450000000 USD
CY2019 so Maximum Amount For Each Licensed Reactor
MaximumAmountForEachLicensedReactor
138000000 USD
CY2019 so Maximum Aggregate Amount For Each Incident
MaximumAggregateAmountForEachIncident
20000000 USD
CY2019 so Block Period Considered For Inflation Adjustment Against Maximum Assessment Per Reactor
BlockPeriodConsideredForInflationAdjustmentAgainstMaximumAssessmentPerReactor
P5Y
CY2019 so Maximum Coverage Per Occurrence Per Unit Limit To Obtain Replacement Power
MaximumCoveragePerOccurrencePerUnitLimitToObtainReplacementPower
490000000 USD
CY2019 so Aggregate Payment For Claims Resulting From Terrorist Acts In One Year Period
AggregatePaymentForClaimsResultingFromTerroristActsInOneYearPeriod
3200000000 USD
CY2017Q4 so Number Of Lessees
NumberOfLessees
1 lessee
CY2019Q4 so Lease Impairment Loss
LeaseImpairmentLoss
17000000 USD
CY2019Q4 so Lease Impairment Loss After Tax
LeaseImpairmentLossAfterTax
13000000 USD
CY2019Q4 us-gaap Leveraged Lease Investment
LeveragedLeaseInvestment
76000000 USD
CY2019 us-gaap Revenue From Contract With Customer Including Assessed Tax
RevenueFromContractWithCustomerIncludingAssessedTax
21419000000 USD
CY2018 us-gaap Revenue From Contract With Customer Including Assessed Tax
RevenueFromContractWithCustomerIncludingAssessedTax
23495000000 USD
CY2019Q4 us-gaap Accounts Receivable Net
AccountsReceivableNet
2413000000 USD
CY2018Q4 us-gaap Accounts Receivable Net
AccountsReceivableNet
2630000000 USD
CY2019Q4 us-gaap Contract With Customer Asset Net
ContractWithCustomerAssetNet
117000000 USD
CY2018Q4 us-gaap Contract With Customer Asset Net
ContractWithCustomerAssetNet
102000000 USD
CY2019Q4 us-gaap Contract With Customer Liability
ContractWithCustomerLiability
52000000 USD
CY2018Q4 us-gaap Contract With Customer Liability
ContractWithCustomerLiability
32000000 USD
CY2019 us-gaap Contract With Customer Liability Revenue Recognized
ContractWithCustomerLiabilityRevenueRecognized
30000000 USD
CY2019Q4 us-gaap Revenue Remaining Performance Obligation
RevenueRemainingPerformanceObligation
490000000 USD
CY2019Q4 us-gaap Revenue Remaining Performance Obligation
RevenueRemainingPerformanceObligation
430000000 USD
CY2019Q4 us-gaap Revenue Remaining Performance Obligation
RevenueRemainingPerformanceObligation
336000000 USD
CY2019Q4 us-gaap Revenue Remaining Performance Obligation
RevenueRemainingPerformanceObligation
324000000 USD
CY2019Q4 us-gaap Revenue Remaining Performance Obligation
RevenueRemainingPerformanceObligation
323000000 USD
CY2019Q4 us-gaap Revenue Remaining Performance Obligation
RevenueRemainingPerformanceObligation
2108000000 USD
CY2019Q4 us-gaap Public Utilities Property Plant And Equipment Generation Or Processing
PublicUtilitiesPropertyPlantAndEquipmentGenerationOrProcessing
50329000000 USD
CY2019Q4 us-gaap Public Utilities Property Plant And Equipment Transmission
PublicUtilitiesPropertyPlantAndEquipmentTransmission
12157000000 USD
CY2019Q4 us-gaap Public Utilities Property Plant And Equipment Distribution
PublicUtilitiesPropertyPlantAndEquipmentDistribution
19846000000 USD
CY2019Q4 so Public Utilities Property Plantand Equipment General
PublicUtilitiesPropertyPlantandEquipmentGeneral
4650000000 USD
CY2019Q4 so Electric Utility Plantin Service
ElectricUtilityPlantinService
86982000000 USD
CY2019Q4 so Public Utilities Property Plantand Equipment Transportationand Distribution
PublicUtilitiesPropertyPlantandEquipmentTransportationandDistribution
13518000000 USD
CY2019Q4 so Public Utilities Property Plantand Equipment Storage Facilities
PublicUtilitiesPropertyPlantandEquipmentStorageFacilities
1634000000 USD
CY2019Q4 so Public Utilities Property Plant And Equipment Other
PublicUtilitiesPropertyPlantAndEquipmentOther
1192000000 USD
CY2019Q4 so Utility Plant In Service
UtilityPlantInService
16344000000 USD
CY2019Q4 us-gaap Public Utilities Property Plant And Equipment Other Property Plant And Equipment
PublicUtilitiesPropertyPlantAndEquipmentOtherPropertyPlantAndEquipment
1788000000 USD
CY2019Q4 us-gaap Public Utilities Property Plant And Equipment Plant In Service
PublicUtilitiesPropertyPlantAndEquipmentPlantInService
105114000000 USD
CY2018Q4 us-gaap Public Utilities Property Plant And Equipment Generation Or Processing
PublicUtilitiesPropertyPlantAndEquipmentGenerationOrProcessing
52324000000 USD
CY2018Q4 us-gaap Public Utilities Property Plant And Equipment Transmission
PublicUtilitiesPropertyPlantAndEquipmentTransmission
11344000000 USD
CY2018Q4 us-gaap Public Utilities Property Plant And Equipment Distribution
PublicUtilitiesPropertyPlantAndEquipmentDistribution
18746000000 USD
CY2018Q4 so Public Utilities Property Plantand Equipment General
PublicUtilitiesPropertyPlantandEquipmentGeneral
4446000000 USD
CY2018Q4 so Electric Utility Plantin Service
ElectricUtilityPlantinService
86860000000 USD
CY2018Q4 so Public Utilities Property Plantand Equipment Transportationand Distribution
PublicUtilitiesPropertyPlantandEquipmentTransportationandDistribution
12409000000 USD
CY2018Q4 so Public Utilities Property Plantand Equipment Storage Facilities
PublicUtilitiesPropertyPlantandEquipmentStorageFacilities
1640000000 USD
CY2018Q4 so Public Utilities Property Plant And Equipment Other
PublicUtilitiesPropertyPlantAndEquipmentOther
1128000000 USD
CY2018Q4 so Utility Plant In Service
UtilityPlantInService
15177000000 USD
CY2018Q4 us-gaap Public Utilities Property Plant And Equipment Other Property Plant And Equipment
PublicUtilitiesPropertyPlantAndEquipmentOtherPropertyPlantAndEquipment
1669000000 USD
CY2018Q4 us-gaap Public Utilities Property Plant And Equipment Plant In Service
PublicUtilitiesPropertyPlantAndEquipmentPlantInService
103706000000 USD
CY2018Q4 us-gaap Capital Leases Lessee Balance Sheet Assets By Major Class Accumulated Deprecation
CapitalLeasesLesseeBalanceSheetAssetsByMajorClassAccumulatedDeprecation
75000000 USD
CY2018Q4 us-gaap Capital Leases Balance Sheet Assets By Major Class Net
CapitalLeasesBalanceSheetAssetsByMajorClassNet
191000000 USD
CY2017Q4 us-gaap Asset Retirement Obligation
AssetRetirementObligation
4824000000 USD
CY2018 us-gaap Asset Retirement Obligation Liabilities Incurred
AssetRetirementObligationLiabilitiesIncurred
29000000 USD
CY2018 us-gaap Asset Retirement Obligation Liabilities Settled
AssetRetirementObligationLiabilitiesSettled
244000000 USD
CY2018 us-gaap Asset Retirement Obligation Accretion Expense
AssetRetirementObligationAccretionExpense
217000000 USD
CY2018 us-gaap Asset Retirement Obligation Revision Of Estimate
AssetRetirementObligationRevisionOfEstimate
4737000000 USD
CY2018 so Asset Retirement Obligation Reclassification To Held For Sale
AssetRetirementObligationReclassificationToHeldForSale
169000000 USD
CY2018Q4 us-gaap Asset Retirement Obligation
AssetRetirementObligation
9394000000 USD
CY2019 us-gaap Asset Retirement Obligation Liabilities Incurred
AssetRetirementObligationLiabilitiesIncurred
37000000 USD
CY2019 us-gaap Asset Retirement Obligation Liabilities Settled
AssetRetirementObligationLiabilitiesSettled
328000000 USD
CY2019 us-gaap Asset Retirement Obligation Accretion Expense
AssetRetirementObligationAccretionExpense
402000000 USD
CY2019 us-gaap Asset Retirement Obligation Revision Of Estimate
AssetRetirementObligationRevisionOfEstimate
281000000 USD
CY2019Q4 us-gaap Asset Retirement Obligation
AssetRetirementObligation
9786000000 USD
CY2019Q4 so Decommissioning Fund Investments Net Of Receivables
DecommissioningFundInvestmentsNetOfReceivables
2034000000 USD
CY2018Q4 so Decommissioning Fund Investments Net Of Receivables
DecommissioningFundInvestmentsNetOfReceivables
1719000000 USD
CY2019Q4 us-gaap Long Term Debt Maturities Repayments Of Principal In Next Twelve Months
LongTermDebtMaturitiesRepaymentsOfPrincipalInNextTwelveMonths
2991000000 USD
CY2019Q4 us-gaap Long Term Debt Maturities Repayments Of Principal In Year Two
LongTermDebtMaturitiesRepaymentsOfPrincipalInYearTwo
3214000000 USD
CY2019Q4 us-gaap Long Term Debt Maturities Repayments Of Principal In Year Three
LongTermDebtMaturitiesRepaymentsOfPrincipalInYearThree
2003000000 USD
CY2019Q4 us-gaap Long Term Debt Maturities Repayments Of Principal In Year Four
LongTermDebtMaturitiesRepaymentsOfPrincipalInYearFour
2413000000 USD
CY2019Q4 us-gaap Long Term Debt Maturities Repayments Of Principal In Year Five
LongTermDebtMaturitiesRepaymentsOfPrincipalInYearFive
492000000 USD
CY2019Q3 so Number Of Equity Units Issued
NumberOfEquityUnitsIssued
34500000 shares
CY2019Q3 so Equity Units Per Unit Issuance Price
EquityUnitsPerUnitIssuancePrice
50
CY2019Q3 us-gaap Proceeds From Debt Net Of Issuance Costs
ProceedsFromDebtNetOfIssuanceCosts
1682000000 USD
CY2019Q3 so Equity Units Per Unit Issuance Price
EquityUnitsPerUnitIssuancePrice
50
CY2019Q3 so Equity Units Per Unit Issuance Price
EquityUnitsPerUnitIssuancePrice
50
CY2019Q3 so Equity Units Settlement Terms Maximum Number Of Shares
EquityUnitsSettlementTermsMaximumNumberOfShares
30200000 shares
CY2019Q4 so Line Of Credit Expire Year One
LineOfCreditExpireYearOne
33000000 USD
CY2019Q4 so Line Of Credit Expire Year Two
LineOfCreditExpireYearTwo
675000000 USD
CY2019Q4 so Line Of Credit Expire Year Four
LineOfCreditExpireYearFour
6900000000 USD
CY2019Q4 us-gaap Line Of Credit Facility Maximum Borrowing Capacity
LineOfCreditFacilityMaximumBorrowingCapacity
7608000000 USD
CY2019Q4 us-gaap Line Of Credit Facility Remaining Borrowing Capacity
LineOfCreditFacilityRemainingBorrowingCapacity
7576000000 USD
CY2019Q4 so Bank Credit Arrangements No Term Loan Due With In One Year
BankCreditArrangementsNoTermLoanDueWithInOneYear
33000000 USD
CY2019Q4 so Ratio Of Indebtedness To Capitalization Covenant
RatioOfIndebtednessToCapitalizationCovenant
0.70
CY2019Q4 so Amount Of Variable Rate Pollution Control Revenue Bonds Outstanding Requiring Liquidity Support
AmountOfVariableRatePollutionControlRevenueBondsOutstandingRequiringLiquiditySupport
1400000000 USD
CY2019 so Remarketed Pollution Control Bonds
RemarketedPollutionControlBonds
275000000 USD
CY2019Q4 us-gaap Short Term Borrowings
ShortTermBorrowings
2055000000 USD
CY2019Q4 us-gaap Short Term Debt Weighted Average Interest Rate
ShortTermDebtWeightedAverageInterestRate
0.021
CY2018Q4 us-gaap Short Term Borrowings
ShortTermBorrowings
2915000000 USD
CY2018Q4 us-gaap Short Term Debt Weighted Average Interest Rate
ShortTermDebtWeightedAverageInterestRate
0.031
CY2019 so Stock Issued During Period Shares Company Investment Plan And Employee And Director Stock Plans
StockIssuedDuringPeriodSharesCompanyInvestmentPlanAndEmployeeAndDirectorStockPlans
19500000 shares
CY2019 us-gaap Proceeds From Issuance Of Shares Under Incentive And Share Based Compensation Plans Including Stock Options
ProceedsFromIssuanceOfSharesUnderIncentiveAndShareBasedCompensationPlansIncludingStockOptions
844000000 USD
CY2019 so Share Based Compensation Arrangement By Share Based Payment Award Number Of Shares Reserved For Issuance Pursuant To Stock Based Compensation Plan
ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesReservedForIssuancePursuantToStockBasedCompensationPlan
104000000 shares
CY2019 us-gaap Weighted Average Number Of Shares Outstanding Basic
WeightedAverageNumberOfSharesOutstandingBasic
1046000000 shares
CY2018 us-gaap Weighted Average Number Of Shares Outstanding Basic
WeightedAverageNumberOfSharesOutstandingBasic
1020000000 shares
CY2017 us-gaap Weighted Average Number Of Shares Outstanding Basic
WeightedAverageNumberOfSharesOutstandingBasic
1000000000 shares
CY2019 us-gaap Incremental Common Shares Attributable To Share Based Payment Arrangements
IncrementalCommonSharesAttributableToShareBasedPaymentArrangements
8000000 shares
CY2018 us-gaap Incremental Common Shares Attributable To Share Based Payment Arrangements
IncrementalCommonSharesAttributableToShareBasedPaymentArrangements
5000000 shares
CY2017 us-gaap Incremental Common Shares Attributable To Share Based Payment Arrangements
IncrementalCommonSharesAttributableToShareBasedPaymentArrangements
8000000 shares
CY2019 us-gaap Weighted Average Number Of Diluted Shares Outstanding
WeightedAverageNumberOfDilutedSharesOutstanding
1054000000 shares
CY2018 us-gaap Weighted Average Number Of Diluted Shares Outstanding
WeightedAverageNumberOfDilutedSharesOutstanding
1025000000 shares
CY2017 us-gaap Weighted Average Number Of Diluted Shares Outstanding
WeightedAverageNumberOfDilutedSharesOutstanding
1008000000 shares
CY2019 so Undistributed Retained Earnings Of Subsidiaries
UndistributedRetainedEarningsOfSubsidiaries
5300000000 USD
CY2019Q4 so Lease Liability
LeaseLiability
2070000000 USD
CY2019Q4 us-gaap Operating Lease Right Of Use Asset
OperatingLeaseRightOfUseAsset
1800000000 USD
CY2019Q4 us-gaap Operating Lease Liability Current
OperatingLeaseLiabilityCurrent
229000000 USD
CY2019Q4 us-gaap Operating Lease Liability Noncurrent
OperatingLeaseLiabilityNoncurrent
1615000000 USD
CY2019Q4 us-gaap Operating Lease Liability
OperatingLeaseLiability
1844000000 USD
CY2019Q4 us-gaap Finance Lease Right Of Use Asset
FinanceLeaseRightOfUseAsset
216000000 USD
CY2019Q4 us-gaap Finance Lease Liability Current
FinanceLeaseLiabilityCurrent
21000000 USD
CY2019Q4 us-gaap Finance Lease Liability Noncurrent
FinanceLeaseLiabilityNoncurrent
205000000 USD
CY2019Q4 us-gaap Finance Lease Liability
FinanceLeaseLiability
226000000 USD
CY2019 us-gaap Operating Lease Cost
OperatingLeaseCost
310000000 USD
CY2019 us-gaap Finance Lease Right Of Use Asset Amortization
FinanceLeaseRightOfUseAssetAmortization
28000000 USD
CY2019 us-gaap Finance Lease Interest Expense
FinanceLeaseInterestExpense
12000000 USD
CY2019 so Finance Lease Cost
FinanceLeaseCost
40000000 USD
CY2019 us-gaap Short Term Lease Cost
ShortTermLeaseCost
48000000 USD
CY2019 us-gaap Variable Lease Cost
VariableLeaseCost
105000000 USD
CY2019 us-gaap Sublease Income
SubleaseIncome
0 USD
CY2019 us-gaap Lease Cost
LeaseCost
503000000 USD
CY2018 so Leases Rent Expense
LeasesRentExpense
192 USD
CY2018 so Leases Ppa Capacity Expense
LeasesPPACapacityExpense
231 USD
CY2017 so Leases Rent Expense
LeasesRentExpense
176 USD
CY2017 so Leases Ppa Capacity Expense
LeasesPPACapacityExpense
235 USD
CY2019 us-gaap Operating Lease Payments
OperatingLeasePayments
323000000 USD
CY2019 us-gaap Finance Lease Interest Payment On Liability
FinanceLeaseInterestPaymentOnLiability
10000000 USD
CY2019 us-gaap Finance Lease Principal Payments
FinanceLeasePrincipalPayments
32000000 USD
CY2019 us-gaap Right Of Use Asset Obtained In Exchange For Operating Lease Liability
RightOfUseAssetObtainedInExchangeForOperatingLeaseLiability
118000000 USD
CY2019 us-gaap Right Of Use Asset Obtained In Exchange For Finance Lease Liability
RightOfUseAssetObtainedInExchangeForFinanceLeaseLiability
35000000 USD
CY2019Q4 us-gaap Operating Lease Weighted Average Remaining Lease Term1
OperatingLeaseWeightedAverageRemainingLeaseTerm1
P14Y2M12D
CY2019Q4 us-gaap Finance Lease Weighted Average Remaining Lease Term1
FinanceLeaseWeightedAverageRemainingLeaseTerm1
P18Y9M18D
CY2019Q4 us-gaap Operating Lease Weighted Average Discount Rate Percent
OperatingLeaseWeightedAverageDiscountRatePercent
0.0453
CY2019Q4 us-gaap Finance Lease Weighted Average Discount Rate Percent
FinanceLeaseWeightedAverageDiscountRatePercent
0.0504
CY2019Q4 us-gaap Lessee Operating Lease Liability Payments Due Next Rolling Twelve Months
LesseeOperatingLeaseLiabilityPaymentsDueNextRollingTwelveMonths
289000000 USD
CY2019Q4 us-gaap Lessee Operating Lease Liability Payments Due Year Two
LesseeOperatingLeaseLiabilityPaymentsDueYearTwo
268000000 USD
CY2019Q4 us-gaap Lessee Operating Lease Liability Payments Due Year Three
LesseeOperatingLeaseLiabilityPaymentsDueYearThree
260000000 USD
CY2019Q4 us-gaap Lessee Operating Lease Liability Payments Due Year Four
LesseeOperatingLeaseLiabilityPaymentsDueYearFour
208000000 USD
CY2019Q4 us-gaap Lessee Operating Lease Liability Payments Due Year Five
LesseeOperatingLeaseLiabilityPaymentsDueYearFive
163000000 USD
CY2019Q4 us-gaap Lessee Operating Lease Liability Payments Due After Year Five
LesseeOperatingLeaseLiabilityPaymentsDueAfterYearFive
1514000000 USD
CY2019Q4 us-gaap Lessee Operating Lease Liability Payments Due
LesseeOperatingLeaseLiabilityPaymentsDue
2702000000 USD
CY2019Q4 us-gaap Lessee Operating Lease Liability Undiscounted Excess Amount
LesseeOperatingLeaseLiabilityUndiscountedExcessAmount
858000000 USD
CY2019Q4 so Operating Lease Liability Including Held For Sale
OperatingLeaseLiabilityIncludingHeldForSale
1844000000 USD
CY2019Q4 us-gaap Finance Lease Liability Payments Due In Next Rolling Twelve Months
FinanceLeaseLiabilityPaymentsDueInNextRollingTwelveMonths
31000000 USD
CY2019Q4 us-gaap Finance Lease Liability Payments Due Year Two
FinanceLeaseLiabilityPaymentsDueYearTwo
25000000 USD
CY2019Q4 us-gaap Finance Lease Liability Payments Due Year Three
FinanceLeaseLiabilityPaymentsDueYearThree
22000000 USD
CY2019Q4 us-gaap Finance Lease Liability Payments Due Year Four
FinanceLeaseLiabilityPaymentsDueYearFour
18000000 USD
CY2019Q4 us-gaap Finance Lease Liability Payments Due Year Five
FinanceLeaseLiabilityPaymentsDueYearFive
15000000 USD
CY2019Q4 us-gaap Finance Lease Liability Payments Due After Year Five
FinanceLeaseLiabilityPaymentsDueAfterYearFive
246000000 USD
CY2019Q4 us-gaap Finance Lease Liability Payments Due
FinanceLeaseLiabilityPaymentsDue
357000000 USD
CY2019Q4 us-gaap Finance Lease Liability Undiscounted Excess Amount
FinanceLeaseLiabilityUndiscountedExcessAmount
131000000 USD
CY2019Q4 us-gaap Finance Lease Liability
FinanceLeaseLiability
226000000 USD
CY2019Q4 us-gaap Lessee Operating Lease Lease Not Yet Commenced Term Of Contract1
LesseeOperatingLeaseLeaseNotYetCommencedTermOfContract1
P40Y
CY2019Q4 so Lessee Operating Lease Lease Not Yet Commenced Liability
LesseeOperatingLeaseLeaseNotYetCommencedLiability
248000000 USD
CY2019 us-gaap Sales Type Lease Interest Income
SalesTypeLeaseInterestIncome
9000000 USD
CY2019 us-gaap Operating Lease Lease Income
OperatingLeaseLeaseIncome
273000000 USD
CY2019 us-gaap Variable Lease Income
VariableLeaseIncome
403000000 USD
CY2019 us-gaap Lease Income
LeaseIncome
685000000 USD
CY2019Q4 us-gaap Sales Type And Direct Financing Leases Lease Receivable Payments To Be Received Next Rolling Twelve Months
SalesTypeAndDirectFinancingLeasesLeaseReceivablePaymentsToBeReceivedNextRollingTwelveMonths
17000000 USD
CY2019Q4 us-gaap Sales Type And Direct Financing Leases Lease Receivable Payments To Be Received Two Years
SalesTypeAndDirectFinancingLeasesLeaseReceivablePaymentsToBeReceivedTwoYears
15000000 USD
CY2019Q4 us-gaap Sales Type And Direct Financing Leases Lease Receivable Payments To Be Received Three Years
SalesTypeAndDirectFinancingLeasesLeaseReceivablePaymentsToBeReceivedThreeYears
15000000 USD
CY2019Q4 us-gaap Sales Type And Direct Financing Leases Lease Receivable Payments To Be Received Four Years
SalesTypeAndDirectFinancingLeasesLeaseReceivablePaymentsToBeReceivedFourYears
14000000 USD
CY2019Q4 us-gaap Sales Type And Direct Financing Leases Lease Receivable Payments To Be Received Five Years
SalesTypeAndDirectFinancingLeasesLeaseReceivablePaymentsToBeReceivedFiveYears
14000000 USD
CY2019Q4 us-gaap Sales Type And Direct Financing Leases Lease Receivable Payments To Be Received Thereafter
SalesTypeAndDirectFinancingLeasesLeaseReceivablePaymentsToBeReceivedThereafter
138000000 USD
CY2019Q4 us-gaap Sales Type And Direct Financing Leases Lease Receivable Payments To Be Received
SalesTypeAndDirectFinancingLeasesLeaseReceivablePaymentsToBeReceived
213000000 USD
CY2019Q4 us-gaap Sales Type And Direct Financing Leases Lease Receivable
SalesTypeAndDirectFinancingLeasesLeaseReceivable
118000000 USD
CY2019Q4 us-gaap Sales Type And Direct Financing Leases Lease Receivable Undiscounted Excess Amount
SalesTypeAndDirectFinancingLeasesLeaseReceivableUndiscountedExcessAmount
95000000 USD
CY2019Q4 us-gaap Lessor Operating Lease Payments To Be Received Next Rolling Twelve Months
LessorOperatingLeasePaymentsToBeReceivedNextRollingTwelveMonths
155000000 USD
CY2019Q4 us-gaap Lessor Operating Lease Payments To Be Received Two Years
LessorOperatingLeasePaymentsToBeReceivedTwoYears
141000000 USD
CY2019Q4 us-gaap Lessor Operating Lease Payments To Be Received Three Years
LessorOperatingLeasePaymentsToBeReceivedThreeYears
125000000 USD
CY2019Q4 us-gaap Lessor Operating Lease Payments To Be Received Four Years
LessorOperatingLeasePaymentsToBeReceivedFourYears
110000000 USD
CY2019Q4 us-gaap Lessor Operating Lease Payments To Be Received Five Years
LessorOperatingLeasePaymentsToBeReceivedFiveYears
103000000 USD
CY2019Q4 us-gaap Lessor Operating Lease Payments To Be Received Thereafter
LessorOperatingLeasePaymentsToBeReceivedThereafter
1063000000 USD
CY2019Q4 us-gaap Lessor Operating Lease Payments To Be Received
LessorOperatingLeasePaymentsToBeReceived
1697000000 USD
CY2019 us-gaap Current Federal Tax Expense Benefit
CurrentFederalTaxExpenseBenefit
156000000 USD
CY2019 us-gaap Deferred Federal Income Tax Expense Benefit
DeferredFederalIncomeTaxExpenseBenefit
1237000000 USD
CY2019 us-gaap Federal Income Tax Expense Benefit Continuing Operations
FederalIncomeTaxExpenseBenefitContinuingOperations
1393000000 USD
CY2019 us-gaap Current State And Local Tax Expense Benefit
CurrentStateAndLocalTaxExpenseBenefit
275000000 USD
CY2019 us-gaap Deferred State And Local Income Tax Expense Benefit
DeferredStateAndLocalIncomeTaxExpenseBenefit
130000000 USD
CY2018 us-gaap Effective Income Tax Rate Reconciliation Nondeductible Expense Depreciation
EffectiveIncomeTaxRateReconciliationNondeductibleExpenseDepreciation
0.008
CY2018 us-gaap Effective Income Tax Rate Reconciliation Prior Year Income Taxes
EffectiveIncomeTaxRateReconciliationPriorYearIncomeTaxes
-0.040
CY2019 us-gaap State And Local Income Tax Expense Benefit Continuing Operations
StateAndLocalIncomeTaxExpenseBenefitContinuingOperations
405000000 USD
CY2019 us-gaap Income Tax Expense Benefit
IncomeTaxExpenseBenefit
1798000000 USD
CY2018 us-gaap Current Federal Tax Expense Benefit
CurrentFederalTaxExpenseBenefit
167000000 USD
CY2018 us-gaap Deferred Federal Income Tax Expense Benefit
DeferredFederalIncomeTaxExpenseBenefit
231000000 USD
CY2018 us-gaap Federal Income Tax Expense Benefit Continuing Operations
FederalIncomeTaxExpenseBenefitContinuingOperations
398000000 USD
CY2018 us-gaap Current State And Local Tax Expense Benefit
CurrentStateAndLocalTaxExpenseBenefit
188000000 USD
CY2018 us-gaap Deferred State And Local Income Tax Expense Benefit
DeferredStateAndLocalIncomeTaxExpenseBenefit
-137000000 USD
CY2018 us-gaap State And Local Income Tax Expense Benefit Continuing Operations
StateAndLocalIncomeTaxExpenseBenefitContinuingOperations
51000000 USD
CY2018 us-gaap Income Tax Expense Benefit
IncomeTaxExpenseBenefit
449000000 USD
CY2017 us-gaap Current Federal Tax Expense Benefit
CurrentFederalTaxExpenseBenefit
-62000000 USD
CY2017 us-gaap Deferred Federal Income Tax Expense Benefit
DeferredFederalIncomeTaxExpenseBenefit
-6000000 USD
CY2017 us-gaap Federal Income Tax Expense Benefit Continuing Operations
FederalIncomeTaxExpenseBenefitContinuingOperations
-68000000 USD
CY2017 us-gaap Current State And Local Tax Expense Benefit
CurrentStateAndLocalTaxExpenseBenefit
37000000 USD
CY2017 us-gaap Deferred State And Local Income Tax Expense Benefit
DeferredStateAndLocalIncomeTaxExpenseBenefit
173000000 USD
CY2017 us-gaap State And Local Income Tax Expense Benefit Continuing Operations
StateAndLocalIncomeTaxExpenseBenefitContinuingOperations
210000000 USD
CY2017 us-gaap Income Tax Expense Benefit
IncomeTaxExpenseBenefit
142000000 USD
CY2019 so Amortization Of Deferred Investment Tax Credits
AmortizationOfDeferredInvestmentTaxCredits
181000000 USD
CY2018 so Amortization Of Deferred Investment Tax Credits
AmortizationOfDeferredInvestmentTaxCredits
87000000 USD
CY2017 so Amortization Of Deferred Investment Tax Credits
AmortizationOfDeferredInvestmentTaxCredits
79000000 USD
CY2019 us-gaap Effective Income Tax Rate Reconciliation At Federal Statutory Income Tax Rate
EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate
0.210
CY2019 us-gaap Effective Income Tax Rate Reconciliation State And Local Income Taxes
EffectiveIncomeTaxRateReconciliationStateAndLocalIncomeTaxes
0.049
CY2019 us-gaap Effective Income Tax Rate Reconciliation Deductions Employee Stock Ownership Plan Dividends
EffectiveIncomeTaxRateReconciliationDeductionsEmployeeStockOwnershipPlanDividends
0.004
CY2019 us-gaap Effective Income Tax Rate Reconciliation Nondeductible Expense Depreciation
EffectiveIncomeTaxRateReconciliationNondeductibleExpenseDepreciation
0.003
CY2019 us-gaap Effective Income Tax Rate Reconciliation Prior Year Income Taxes
EffectiveIncomeTaxRateReconciliationPriorYearIncomeTaxes
-0.021
CY2019 so Afudc Equity
AfudcEquity
0.004
CY2019 us-gaap Effective Income Tax Rate Reconciliation Tax Credits Investment
EffectiveIncomeTaxRateReconciliationTaxCreditsInvestment
0.001
CY2019 so Effective Income Tax Rate Reconciliation Amortization Tax Credits Investment
EffectiveIncomeTaxRateReconciliationAmortizationTaxCreditsInvestment
0.008
CY2019 us-gaap Effective Income Tax Rate Reconciliation Disposition Of Business
EffectiveIncomeTaxRateReconciliationDispositionOfBusiness
0.051
CY2019 us-gaap Effective Income Tax Rate Reconciliation Minority Interest Income Expense
EffectiveIncomeTaxRateReconciliationMinorityInterestIncomeExpense
0
CY2019 us-gaap Effective Income Tax Rate Reconciliation Other Adjustments
EffectiveIncomeTaxRateReconciliationOtherAdjustments
0
CY2019 us-gaap Effective Income Tax Rate Continuing Operations
EffectiveIncomeTaxRateContinuingOperations
0.275
CY2018 us-gaap Effective Income Tax Rate Reconciliation At Federal Statutory Income Tax Rate
EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate
0.210
CY2018 us-gaap Effective Income Tax Rate Reconciliation State And Local Income Taxes
EffectiveIncomeTaxRateReconciliationStateAndLocalIncomeTaxes
0.018
CY2018 us-gaap Effective Income Tax Rate Reconciliation Deductions Employee Stock Ownership Plan Dividends
EffectiveIncomeTaxRateReconciliationDeductionsEmployeeStockOwnershipPlanDividends
0.010
CY2018 so Afudc Equity
AfudcEquity
0.010
CY2018 us-gaap Effective Income Tax Rate Reconciliation Tax Credits Investment
EffectiveIncomeTaxRateReconciliationTaxCreditsInvestment
0.006
CY2018 so Effective Income Tax Rate Reconciliation Tax Credit Production Percent
EffectiveIncomeTaxRateReconciliationTaxCreditProductionPercent
0.047
CY2018 so Effective Income Tax Rate Reconciliation Amortization Tax Credits Investment
EffectiveIncomeTaxRateReconciliationAmortizationTaxCreditsInvestment
0.020
CY2018 us-gaap Effective Income Tax Rate Reconciliation Disposition Of Business
EffectiveIncomeTaxRateReconciliationDispositionOfBusiness
0.086
CY2018 us-gaap Effective Income Tax Rate Reconciliation Change In Enacted Tax Rate
EffectiveIncomeTaxRateReconciliationChangeInEnactedTaxRate
-0.014
CY2018 us-gaap Effective Income Tax Rate Reconciliation Minority Interest Income Expense
EffectiveIncomeTaxRateReconciliationMinorityInterestIncomeExpense
0.004
CY2018 us-gaap Effective Income Tax Rate Reconciliation Other Adjustments
EffectiveIncomeTaxRateReconciliationOtherAdjustments
-0.008
CY2018 us-gaap Effective Income Tax Rate Continuing Operations
EffectiveIncomeTaxRateContinuingOperations
0.163
CY2017 us-gaap Effective Income Tax Rate Reconciliation At Federal Statutory Income Tax Rate
EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate
0.350
CY2017 us-gaap Effective Income Tax Rate Reconciliation State And Local Income Taxes
EffectiveIncomeTaxRateReconciliationStateAndLocalIncomeTaxes
0.125
CY2017 us-gaap Effective Income Tax Rate Reconciliation Deductions Employee Stock Ownership Plan Dividends
EffectiveIncomeTaxRateReconciliationDeductionsEmployeeStockOwnershipPlanDividends
0.040
CY2017 us-gaap Effective Income Tax Rate Reconciliation Nondeductible Expense Depreciation
EffectiveIncomeTaxRateReconciliationNondeductibleExpenseDepreciation
0.031
CY2017 us-gaap Effective Income Tax Rate Reconciliation Prior Year Income Taxes
EffectiveIncomeTaxRateReconciliationPriorYearIncomeTaxes
-0.003
CY2017 so Afudc Equity
AfudcEquity
0.026
CY2017 us-gaap Effective Income Tax Rate Reconciliation Tax Credits
EffectiveIncomeTaxRateReconciliationTaxCredits
-0.157
CY2017 us-gaap Effective Income Tax Rate Reconciliation Tax Credits Investment
EffectiveIncomeTaxRateReconciliationTaxCreditsInvestment
0.017
CY2017 so Effective Income Tax Rate Reconciliation Tax Credit Production Percent
EffectiveIncomeTaxRateReconciliationTaxCreditProductionPercent
0.121
CY2017 so Effective Income Tax Rate Reconciliation Amortization Tax Credits Investment
EffectiveIncomeTaxRateReconciliationAmortizationTaxCreditsInvestment
0.042
CY2017 us-gaap Effective Income Tax Rate Reconciliation Change In Enacted Tax Rate
EffectiveIncomeTaxRateReconciliationChangeInEnactedTaxRate
-0.256
CY2017 us-gaap Effective Income Tax Rate Reconciliation Minority Interest Income Expense
EffectiveIncomeTaxRateReconciliationMinorityInterestIncomeExpense
0.014
CY2017 us-gaap Effective Income Tax Rate Reconciliation Other Adjustments
EffectiveIncomeTaxRateReconciliationOtherAdjustments
-0.011
CY2017 us-gaap Effective Income Tax Rate Continuing Operations
EffectiveIncomeTaxRateContinuingOperations
0.133
CY2019Q4 us-gaap Deferred Income Tax Liabilities
DeferredIncomeTaxLiabilities
16261000000 USD
CY2019Q4 us-gaap Deferred Tax Assets Gross
DeferredTaxAssetsGross
8680000000 USD
CY2019Q4 us-gaap Deferred Tax Assets Valuation Allowance
DeferredTaxAssetsValuationAllowance
137000000 USD
CY2019Q4 us-gaap Deferred Tax Assets Net
DeferredTaxAssetsNet
8543000000 USD
CY2019Q4 us-gaap Deferred Tax Liabilities
DeferredTaxLiabilities
7718000000 USD
CY2019Q4 so Accumulated Deferred Tax Assets
AccumulatedDeferredTaxAssets
170000000 USD
CY2019Q4 so Accumulated Deferred Tax Liabilities
AccumulatedDeferredTaxLiabilities
7888000000 USD
CY2018Q4 us-gaap Deferred Income Tax Liabilities
DeferredIncomeTaxLiabilities
15207000000 USD
CY2018Q4 us-gaap Deferred Tax Assets Gross
DeferredTaxAssetsGross
9048000000 USD
CY2018Q4 us-gaap Deferred Tax Assets Valuation Allowance
DeferredTaxAssetsValuationAllowance
123000000 USD
CY2018Q4 us-gaap Deferred Tax Assets Net
DeferredTaxAssetsNet
8925000000 USD
CY2018Q4 us-gaap Deferred Tax Liabilities
DeferredTaxLiabilities
6282000000 USD
CY2018Q4 so Accumulated Deferred Tax Assets
AccumulatedDeferredTaxAssets
276000000 USD
CY2018Q4 so Accumulated Deferred Tax Liabilities
AccumulatedDeferredTaxLiabilities
6558000000 USD
CY2019Q4 us-gaap Deferred Tax Assets Operating Loss Carryforwards State And Local
DeferredTaxAssetsOperatingLossCarryforwardsStateAndLocal
306000000 USD
CY2016Q4 us-gaap Unrecognized Tax Benefits
UnrecognizedTaxBenefits
484000000 USD
CY2017 us-gaap Unrecognized Tax Benefits Increases Resulting From Current Period Tax Positions
UnrecognizedTaxBenefitsIncreasesResultingFromCurrentPeriodTaxPositions
10000000 USD
CY2017 us-gaap Unrecognized Tax Benefits Increases Resulting From Prior Period Tax Positions
UnrecognizedTaxBenefitsIncreasesResultingFromPriorPeriodTaxPositions
10000000 USD
CY2017 us-gaap Unrecognized Tax Benefits Decreases Resulting From Prior Period Tax Positions
UnrecognizedTaxBenefitsDecreasesResultingFromPriorPeriodTaxPositions
196000000 USD
CY2017 us-gaap Unrecognized Tax Benefits Decreases Resulting From Settlements With Taxing Authorities
UnrecognizedTaxBenefitsDecreasesResultingFromSettlementsWithTaxingAuthorities
290000000 USD
CY2017Q4 us-gaap Unrecognized Tax Benefits
UnrecognizedTaxBenefits
18000000 USD
CY2018 us-gaap Unrecognized Tax Benefits Decreases Resulting From Prior Period Tax Positions
UnrecognizedTaxBenefitsDecreasesResultingFromPriorPeriodTaxPositions
18000000 USD
CY2018Q4 us-gaap Unrecognized Tax Benefits
UnrecognizedTaxBenefits
0 USD
CY2017Q4 us-gaap Unrecognized Tax Benefits That Would Impact Effective Tax Rate
UnrecognizedTaxBenefitsThatWouldImpactEffectiveTaxRate
18000000 USD
CY2017Q4 so Tax Positions Not Impacting Effective Tax Rate
TaxPositionsNotImpactingEffectiveTaxRate
0 USD
CY2017Q4 us-gaap Unrecognized Tax Benefits
UnrecognizedTaxBenefits
18000000 USD
CY2019 so Significantly Increase Or Decrease In Amount Of Unrecognized Tax Benefits
SignificantlyIncreaseOrDecreaseInAmountOfUnrecognizedTaxBenefits
P12M
CY2019 so Period Over Which Company Has Elected To Amortize Changes In Market Value Of All Plan Assets
PeriodOverWhichCompanyHasElectedToAmortizeChangesInMarketValueOfAllPlanAssets
P5Y
CY2019Q4 us-gaap Defined Benefit Plan Plan Assets Target Allocation Percentage
DefinedBenefitPlanPlanAssetsTargetAllocationPercentage
1
CY2019Q4 us-gaap Defined Benefit Plan Weighted Average Asset Allocations
DefinedBenefitPlanWeightedAverageAssetAllocations
1
CY2019Q4 us-gaap Defined Benefit Plan Plan Assets Target Allocation Percentage
DefinedBenefitPlanPlanAssetsTargetAllocationPercentage
1
CY2019Q4 us-gaap Defined Benefit Plan Weighted Average Asset Allocations
DefinedBenefitPlanWeightedAverageAssetAllocations
1
CY2019Q4 so Number Of Employees Participatingin Stock Optionand Performance Share Units Program
NumberOfEmployeesParticipatinginStockOptionandPerformanceShareUnitsProgram
2320 employee
CY2019 so Depreciation And Amortization Excluding Nuclear Fuel
DepreciationAndAmortizationExcludingNuclearFuel
3038000000 USD
CY2019Q1 us-gaap Conversion Of Stock Shares Converted1
ConversionOfStockSharesConverted1
1700000 shares
CY2019Q1 so Common Stock Conversion Price
CommonStockConversionPrice
49.24
CY2018Q4 us-gaap Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Number
ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber
17500000 shares
CY2018Q4 us-gaap Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Weighted Average Exercise Price
ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice
41.92
CY2019 us-gaap Stock Issued During Period Shares Stock Options Exercised
StockIssuedDuringPeriodSharesStockOptionsExercised
11600000 shares
CY2019 us-gaap Share Based Compensation Arrangements By Share Based Payment Award Options Exercises In Period Weighted Average Exercise Price
ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsExercisesInPeriodWeightedAverageExercisePrice
41.62
CY2019Q4 us-gaap Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Number
ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber
5900000 shares
CY2019Q4 us-gaap Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Weighted Average Exercise Price
ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice
42.52
CY2019 us-gaap Proceeds From Stock Options Exercised
ProceedsFromStockOptionsExercised
482000000 USD
CY2018 us-gaap Proceeds From Stock Options Exercised
ProceedsFromStockOptionsExercised
41000000 USD
CY2017 us-gaap Proceeds From Stock Options Exercised
ProceedsFromStockOptionsExercised
239000000 USD
CY2019Q4 us-gaap Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Intrinsic Value
ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingIntrinsicValue
124000000 USD
CY2019 us-gaap Share Based Compensation Arrangement By Share Based Payment Award Options Exercises In Period Total Intrinsic Value
ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisesInPeriodTotalIntrinsicValue
167000000 USD
CY2018 us-gaap Share Based Compensation Arrangement By Share Based Payment Award Options Exercises In Period Total Intrinsic Value
ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisesInPeriodTotalIntrinsicValue
9000000 USD
CY2017 us-gaap Share Based Compensation Arrangement By Share Based Payment Award Options Exercises In Period Total Intrinsic Value
ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisesInPeriodTotalIntrinsicValue
64000000 USD
CY2019 us-gaap Employee Service Share Based Compensation Tax Benefit From Exercise Of Stock Options
EmployeeServiceShareBasedCompensationTaxBenefitFromExerciseOfStockOptions
35000000 USD
CY2018 us-gaap Employee Service Share Based Compensation Tax Benefit From Exercise Of Stock Options
EmployeeServiceShareBasedCompensationTaxBenefitFromExerciseOfStockOptions
2000000 USD
CY2017 us-gaap Employee Service Share Based Compensation Tax Benefit From Exercise Of Stock Options
EmployeeServiceShareBasedCompensationTaxBenefitFromExerciseOfStockOptions
25000000 USD
CY2019Q4 so Weather Derivative Premium
WeatherDerivativePremium
4000000 USD
CY2019 us-gaap Other Comprehensive Income Loss Cash Flow Hedge Gain Loss Before Reclassification And Tax
OtherComprehensiveIncomeLossCashFlowHedgeGainLossBeforeReclassificationAndTax
-154000000 USD
CY2018 us-gaap Derivative Instruments Gain Loss Reclassified From Accumulated Oci Into Income Effective Portion Net
DerivativeInstrumentsGainLossReclassifiedFromAccumulatedOCIIntoIncomeEffectivePortionNet
-62000000 USD
CY2017 us-gaap Derivative Instruments Gain Loss Reclassified From Accumulated Oci Into Income Effective Portion Net
DerivativeInstrumentsGainLossReclassifiedFromAccumulatedOCIIntoIncomeEffectivePortionNet
91000000 USD
CY2019Q4 us-gaap Collateral Already Posted Aggregate Fair Value
CollateralAlreadyPostedAggregateFairValue
99000000 USD
CY2018Q4 so Weather Derivative Premium
WeatherDerivativePremium
8000000 USD
CY2018Q4 us-gaap Collateral Already Posted Aggregate Fair Value
CollateralAlreadyPostedAggregateFairValue
277000000 USD
CY2019Q4 us-gaap Debt Instrument Carrying Amount
DebtInstrumentCarryingAmount
44561000000 USD
CY2019Q4 us-gaap Debt Instrument Fair Value
DebtInstrumentFairValue
48339000000 USD
CY2018Q4 us-gaap Debt Instrument Carrying Amount
DebtInstrumentCarryingAmount
45023000000 USD
CY2018Q4 us-gaap Debt Instrument Fair Value
DebtInstrumentFairValue
44824000000 USD
CY2019 so Expected Volume Of Natural Gas Subject To Option To Sell Back Excess Gas Due To Operational Constraints
ExpectedVolumeOfNaturalGasSubjectToOptionToSellBackExcessGasDueToOperationalConstraints
23000000 MMBTU
CY2019Q4 us-gaap Interest Rate Cash Flow Hedge Gain Loss To Be Reclassified During Next12 Months Net
InterestRateCashFlowHedgeGainLossToBeReclassifiedDuringNext12MonthsNet
-22000000 USD
CY2018 us-gaap Interest And Debt Expense
InterestAndDebtExpense
1842000000 USD
CY2018 so Depreciation And Amortization Excluding Nuclear Fuel
DepreciationAndAmortizationExcludingNuclearFuel
3131000000 USD
CY2017 so Depreciation And Amortization Excluding Nuclear Fuel
DepreciationAndAmortizationExcludingNuclearFuel
3010000000 USD
CY2019 us-gaap Interest And Debt Expense
InterestAndDebtExpense
1736000000 USD
CY2018 us-gaap Interest And Debt Expense
InterestAndDebtExpense
1842000000 USD
CY2017 us-gaap Interest And Debt Expense
InterestAndDebtExpense
1694000000 USD
CY2019 us-gaap Other Nonoperating Income Expense
OtherNonoperatingIncomeExpense
252000000 USD
CY2018 us-gaap Other Nonoperating Income Expense
OtherNonoperatingIncomeExpense
114000000 USD
CY2017 us-gaap Other Nonoperating Income Expense
OtherNonoperatingIncomeExpense
163000000 USD
CY2019Q4 us-gaap Collateral Already Posted Aggregate Fair Value
CollateralAlreadyPostedAggregateFairValue
99000000 USD
CY2019 us-gaap Revenue From Contract With Customer Including Assessed Tax
RevenueFromContractWithCustomerIncludingAssessedTax
21419000000 USD
CY2019 so Depreciation And Amortization Excluding Nuclear Fuel
DepreciationAndAmortizationExcludingNuclearFuel
3038000000 USD
CY2019 us-gaap Investment Income Interest And Dividend
InvestmentIncomeInterestAndDividend
60000000 USD
CY2019 us-gaap Income Loss From Equity Method Investments
IncomeLossFromEquityMethodInvestments
162000000 USD
CY2019 us-gaap Interest And Debt Expense
InterestAndDebtExpense
1736000000 USD
CY2019 us-gaap Income Tax Expense Benefit
IncomeTaxExpenseBenefit
1798000000 USD
CY2019 us-gaap Net Income Loss Available To Common Stockholders Basic
NetIncomeLossAvailableToCommonStockholdersBasic
4739000000 USD
CY2019Q4 us-gaap Goodwill
Goodwill
5280000000 USD
CY2019Q4 us-gaap Assets
Assets
118700000000 USD
CY2019 us-gaap Payments To Acquire Productive Assets
PaymentsToAcquireProductiveAssets
7814000000 USD
CY2018 us-gaap Revenue From Contract With Customer Including Assessed Tax
RevenueFromContractWithCustomerIncludingAssessedTax
23495000000 USD
CY2018 so Depreciation And Amortization Excluding Nuclear Fuel
DepreciationAndAmortizationExcludingNuclearFuel
3131000000 USD
CY2018 us-gaap Investment Income Interest And Dividend
InvestmentIncomeInterestAndDividend
38000000 USD
CY2018 us-gaap Income Loss From Equity Method Investments
IncomeLossFromEquityMethodInvestments
148000000 USD
CY2019Q2 us-gaap Revenues
Revenues
5098000000 USD
CY2019Q2 us-gaap Operating Income Loss
OperatingIncomeLoss
1342000000 USD
CY2019Q3 us-gaap Revenues
Revenues
5995000000 USD
CY2019Q2 us-gaap Net Income Loss Available To Common Stockholders Basic
NetIncomeLossAvailableToCommonStockholdersBasic
931000000 USD
CY2019Q2 us-gaap Net Income Loss
NetIncomeLoss
899000000 USD
CY2018 us-gaap Income Tax Expense Benefit
IncomeTaxExpenseBenefit
449000000 USD
CY2018 us-gaap Net Income Loss Available To Common Stockholders Basic
NetIncomeLossAvailableToCommonStockholdersBasic
2226000000 USD
CY2018Q4 us-gaap Goodwill
Goodwill
5315000000 USD
CY2018Q4 us-gaap Assets
Assets
116914000000 USD
CY2018 us-gaap Payments To Acquire Productive Assets
PaymentsToAcquireProductiveAssets
8205000000 USD
CY2017 us-gaap Revenue From Contract With Customer Including Assessed Tax
RevenueFromContractWithCustomerIncludingAssessedTax
23031000000 USD
CY2017 so Depreciation And Amortization Excluding Nuclear Fuel
DepreciationAndAmortizationExcludingNuclearFuel
3010000000 USD
CY2017 us-gaap Investment Income Interest And Dividend
InvestmentIncomeInterestAndDividend
26000000 USD
CY2017 us-gaap Income Loss From Equity Method Investments
IncomeLossFromEquityMethodInvestments
106000000 USD
CY2017 us-gaap Interest And Debt Expense
InterestAndDebtExpense
1694000000 USD
CY2017 us-gaap Income Tax Expense Benefit
IncomeTaxExpenseBenefit
142000000 USD
CY2017 us-gaap Net Income Loss Available To Common Stockholders Basic
NetIncomeLossAvailableToCommonStockholdersBasic
842000000 USD
CY2017Q4 us-gaap Goodwill
Goodwill
6268000000 USD
CY2017Q4 us-gaap Assets
Assets
111005000000 USD
CY2017 us-gaap Payments To Acquire Productive Assets
PaymentsToAcquireProductiveAssets
5984000000 USD
CY2019Q4 so Lease Impairment Loss
LeaseImpairmentLoss
17000000 USD
CY2019Q4 so Lease Impairment Loss After Tax
LeaseImpairmentLossAfterTax
13000000 USD
CY2019Q1 us-gaap Revenues
Revenues
5412000000 USD
CY2019Q1 us-gaap Operating Income Loss
OperatingIncomeLoss
3691000000 USD
CY2019Q1 us-gaap Net Income Loss Available To Common Stockholders Basic
NetIncomeLossAvailableToCommonStockholdersBasic
2059000000 USD
CY2019Q1 us-gaap Net Income Loss
NetIncomeLoss
2084000000 USD
CY2019Q3 us-gaap Operating Income Loss
OperatingIncomeLoss
2013000000 USD
CY2019Q3 us-gaap Net Income Loss Available To Common Stockholders Basic
NetIncomeLossAvailableToCommonStockholdersBasic
1345000000 USD
CY2019Q3 us-gaap Net Income Loss
NetIncomeLoss
1316000000 USD
CY2019Q4 us-gaap Revenues
Revenues
4914000000 USD
CY2019Q4 us-gaap Operating Income Loss
OperatingIncomeLoss
690000000 USD
CY2019Q4 us-gaap Net Income Loss Available To Common Stockholders Basic
NetIncomeLossAvailableToCommonStockholdersBasic
409000000 USD
CY2019Q4 us-gaap Net Income Loss
NetIncomeLoss
440000000 USD
CY2019Q4 so Lease Impairment Loss
LeaseImpairmentLoss
17000000 USD
CY2019Q4 so Lease Impairment Loss After Tax
LeaseImpairmentLossAfterTax
13000000 USD
CY2018Q1 us-gaap Revenues
Revenues
6372000000 USD
CY2018Q1 us-gaap Operating Income Loss
OperatingIncomeLoss
1376000000 USD
CY2018Q1 us-gaap Net Income Loss Available To Common Stockholders Basic
NetIncomeLossAvailableToCommonStockholdersBasic
936000000 USD
CY2018Q1 us-gaap Net Income Loss
NetIncomeLoss
938000000 USD
CY2018Q2 us-gaap Revenues
Revenues
5627000000 USD
CY2018Q2 us-gaap Operating Income Loss
OperatingIncomeLoss
63000000 USD
CY2018Q2 us-gaap Net Income Loss Available To Common Stockholders Basic
NetIncomeLossAvailableToCommonStockholdersBasic
-127000000 USD
CY2018Q2 us-gaap Net Income Loss
NetIncomeLoss
-154000000 USD
CY2018Q3 us-gaap Revenues
Revenues
6159000000 USD
CY2018Q3 us-gaap Operating Income Loss
OperatingIncomeLoss
2174000000 USD
CY2018Q3 us-gaap Net Income Loss Available To Common Stockholders Basic
NetIncomeLossAvailableToCommonStockholdersBasic
1222000000 USD
CY2018Q3 us-gaap Net Income Loss
NetIncomeLoss
1164000000 USD
CY2018Q4 us-gaap Revenues
Revenues
5337000000 USD
CY2018Q4 us-gaap Operating Income Loss
OperatingIncomeLoss
578000000 USD
CY2018Q4 us-gaap Net Income Loss Available To Common Stockholders Basic
NetIncomeLossAvailableToCommonStockholdersBasic
269000000 USD
CY2018Q4 us-gaap Net Income Loss
NetIncomeLoss
278000000 USD
CY2019Q1 us-gaap Earnings Per Share Basic
EarningsPerShareBasic
2.01
CY2019Q1 us-gaap Earnings Per Share Diluted
EarningsPerShareDiluted
1.99
CY2019Q2 us-gaap Earnings Per Share Basic
EarningsPerShareBasic
0.86
CY2019Q2 us-gaap Earnings Per Share Diluted
EarningsPerShareDiluted
0.85
CY2019Q3 us-gaap Earnings Per Share Basic
EarningsPerShareBasic
1.26
CY2019Q3 us-gaap Earnings Per Share Diluted
EarningsPerShareDiluted
1.25
CY2019Q4 us-gaap Earnings Per Share Basic
EarningsPerShareBasic
0.42
CY2019Q4 us-gaap Earnings Per Share Diluted
EarningsPerShareDiluted
0.42
CY2018Q1 us-gaap Earnings Per Share Basic
EarningsPerShareBasic
0.93
CY2018Q1 us-gaap Earnings Per Share Diluted
EarningsPerShareDiluted
0.92
CY2018Q2 us-gaap Earnings Per Share Basic
EarningsPerShareBasic
-0.15
CY2018Q2 us-gaap Earnings Per Share Diluted
EarningsPerShareDiluted
-0.15
CY2018Q3 us-gaap Earnings Per Share Basic
EarningsPerShareBasic
1.14
CY2018Q3 us-gaap Earnings Per Share Diluted
EarningsPerShareDiluted
1.13
CY2018Q4 us-gaap Earnings Per Share Basic
EarningsPerShareBasic
0.27
CY2018Q4 us-gaap Earnings Per Share Diluted
EarningsPerShareDiluted
0.27

Files In Submission

Name View Source Status
0000092122-20-000017-index-headers.html Edgar Link pending
0000092122-20-000017-index.html Edgar Link pending
0000092122-20-000017.txt Edgar Link pending
0000092122-20-000017-xbrl.zip Edgar Link pending
FilingSummary.xml Edgar Link unprocessable
Financial_Report.xlsx Edgar Link pending
MetaLinks.json Edgar Link pending
R1.htm Edgar Link pending
R10.htm Edgar Link pending
R100.htm Edgar Link pending
R101.htm Edgar Link pending
R102.htm Edgar Link pending
R103.htm Edgar Link pending
R104.htm Edgar Link pending
R105.htm Edgar Link pending
R106.htm Edgar Link pending
R107.htm Edgar Link pending
R108.htm Edgar Link pending
R109.htm Edgar Link pending
R11.htm Edgar Link pending
R110.htm Edgar Link pending
R111.htm Edgar Link pending
R112.htm Edgar Link pending
R113.htm Edgar Link pending
R114.htm Edgar Link pending
R115.htm Edgar Link pending
R116.htm Edgar Link pending
R117.htm Edgar Link pending
R118.htm Edgar Link pending
R119.htm Edgar Link pending
R12.htm Edgar Link pending
R120.htm Edgar Link pending
R121.htm Edgar Link pending
R122.htm Edgar Link pending
R123.htm Edgar Link pending
R124.htm Edgar Link pending
R125.htm Edgar Link pending
R126.htm Edgar Link pending
R127.htm Edgar Link pending
R128.htm Edgar Link pending
R129.htm Edgar Link pending
R13.htm Edgar Link pending
R130.htm Edgar Link pending
R131.htm Edgar Link pending
R132.htm Edgar Link pending
R133.htm Edgar Link pending
R134.htm Edgar Link pending
R135.htm Edgar Link pending
R136.htm Edgar Link pending
R137.htm Edgar Link pending
R138.htm Edgar Link pending
R139.htm Edgar Link pending
R14.htm Edgar Link pending
R140.htm Edgar Link pending
R141.htm Edgar Link pending
R142.htm Edgar Link pending
R143.htm Edgar Link pending
R144.htm Edgar Link pending
R145.htm Edgar Link pending
R146.htm Edgar Link pending
R147.htm Edgar Link pending
R148.htm Edgar Link pending
R149.htm Edgar Link pending
R15.htm Edgar Link pending
R150.htm Edgar Link pending
R151.htm Edgar Link pending
R152.htm Edgar Link pending
R153.htm Edgar Link pending
R154.htm Edgar Link pending
R155.htm Edgar Link pending
R156.htm Edgar Link pending
R157.htm Edgar Link pending
R158.htm Edgar Link pending
R159.htm Edgar Link pending
R16.htm Edgar Link pending
R160.htm Edgar Link pending
R161.htm Edgar Link pending
R162.htm Edgar Link pending
R163.htm Edgar Link pending
R164.htm Edgar Link pending
R165.htm Edgar Link pending
R166.htm Edgar Link pending
R167.htm Edgar Link pending
R168.htm Edgar Link pending
R169.htm Edgar Link pending
R17.htm Edgar Link pending
R170.htm Edgar Link pending
R171.htm Edgar Link pending
R172.htm Edgar Link pending
R173.htm Edgar Link pending
R174.htm Edgar Link pending
R175.htm Edgar Link pending
R176.htm Edgar Link pending
R177.htm Edgar Link pending
R178.htm Edgar Link pending
R179.htm Edgar Link pending
R18.htm Edgar Link pending
R180.htm Edgar Link pending
R181.htm Edgar Link pending
R182.htm Edgar Link pending
R183.htm Edgar Link pending
R184.htm Edgar Link pending
R185.htm Edgar Link pending
R186.htm Edgar Link pending
R187.htm Edgar Link pending
R188.htm Edgar Link pending
R189.htm Edgar Link pending
R19.htm Edgar Link pending
R190.htm Edgar Link pending
R191.htm Edgar Link pending
R192.htm Edgar Link pending
R193.htm Edgar Link pending
R194.htm Edgar Link pending
R195.htm Edgar Link pending
R196.htm Edgar Link pending
R197.htm Edgar Link pending
R198.htm Edgar Link pending
R199.htm Edgar Link pending
R2.htm Edgar Link pending
R20.htm Edgar Link pending
R200.htm Edgar Link pending
R201.htm Edgar Link pending
R202.htm Edgar Link pending
R203.htm Edgar Link pending
R204.htm Edgar Link pending
R205.htm Edgar Link pending
R206.htm Edgar Link pending
R207.htm Edgar Link pending
R208.htm Edgar Link pending
R209.htm Edgar Link pending
R21.htm Edgar Link pending
R210.htm Edgar Link pending
R211.htm Edgar Link pending
R22.htm Edgar Link pending
R23.htm Edgar Link pending
R24.htm Edgar Link pending
R25.htm Edgar Link pending
R26.htm Edgar Link pending
R27.htm Edgar Link pending
R28.htm Edgar Link pending
R29.htm Edgar Link pending
R3.htm Edgar Link pending
R30.htm Edgar Link pending
R31.htm Edgar Link pending
R32.htm Edgar Link pending
R33.htm Edgar Link pending
R34.htm Edgar Link pending
R35.htm Edgar Link pending
R36.htm Edgar Link pending
R37.htm Edgar Link pending
R38.htm Edgar Link pending
R39.htm Edgar Link pending
R4.htm Edgar Link pending
R40.htm Edgar Link pending
R41.htm Edgar Link pending
R42.htm Edgar Link pending
R43.htm Edgar Link pending
R44.htm Edgar Link pending
R45.htm Edgar Link pending
R46.htm Edgar Link pending
R47.htm Edgar Link pending
R48.htm Edgar Link pending
R49.htm Edgar Link pending
R5.htm Edgar Link pending
R50.htm Edgar Link pending
R51.htm Edgar Link pending
R52.htm Edgar Link pending
R53.htm Edgar Link pending
R54.htm Edgar Link pending
R55.htm Edgar Link pending
R56.htm Edgar Link pending
R57.htm Edgar Link pending
R58.htm Edgar Link pending
R59.htm Edgar Link pending
R6.htm Edgar Link pending
R60.htm Edgar Link pending
R61.htm Edgar Link pending
R62.htm Edgar Link pending
R63.htm Edgar Link pending
R64.htm Edgar Link pending
R65.htm Edgar Link pending
R66.htm Edgar Link pending
R67.htm Edgar Link pending
R68.htm Edgar Link pending
R69.htm Edgar Link pending
R7.htm Edgar Link pending
R70.htm Edgar Link pending
R71.htm Edgar Link pending
R72.htm Edgar Link pending
R73.htm Edgar Link pending
R74.htm Edgar Link pending
R75.htm Edgar Link pending
R76.htm Edgar Link pending
R77.htm Edgar Link pending
R78.htm Edgar Link pending
R79.htm Edgar Link pending
R8.htm Edgar Link pending
R80.htm Edgar Link pending
R81.htm Edgar Link pending
R82.htm Edgar Link pending
R83.htm Edgar Link pending
R84.htm Edgar Link pending
R85.htm Edgar Link pending
R86.htm Edgar Link pending
R87.htm Edgar Link pending
R88.htm Edgar Link pending
R89.htm Edgar Link pending
R9.htm Edgar Link pending
R90.htm Edgar Link pending
R91.htm Edgar Link pending
R92.htm Edgar Link pending
R93.htm Edgar Link pending
R94.htm Edgar Link pending
R95.htm Edgar Link pending
R96.htm Edgar Link pending
R97.htm Edgar Link pending
R98.htm Edgar Link pending
R99.htm Edgar Link pending
R9999.htm Edgar Link pending
report.css Edgar Link pending
Show.js Edgar Link pending
so-20191231.xsd Edgar Link pending
so-20191231_cal.xml Edgar Link unprocessable
so-20191231_def.xml Edgar Link unprocessable
so-20191231_lab.xml Edgar Link unprocessable
so-20191231_pre.xml Edgar Link unprocessable
so10-k12312019.htm Edgar Link pending
so10-k12312019_htm.xml Edgar Link completed
x10a23-q42019.htm Edgar Link pending
x10a24-q42019.htm Edgar Link pending
x10a25-q42019.htm Edgar Link pending
x10a26-q42019.htm Edgar Link pending
x10a27-q42019.htm Edgar Link pending
x10c8-q42019.htm Edgar Link pending
x21a-q42019.htm Edgar Link pending
x23a1-q42019.htm Edgar Link pending
x23b1-q42019.htm Edgar Link pending
x23c1-q42019.htm Edgar Link pending
x23d1-q42019.htm Edgar Link pending
x23e1-q42019.htm Edgar Link pending
x23f1-q42019.htm Edgar Link pending
x23f2-q42019.htm Edgar Link pending
x23f3-q42019.htm Edgar Link pending
x24a-q42019.htm Edgar Link pending
x24b-q42019.htm Edgar Link pending
x24c-q42019.htm Edgar Link pending
x24d-q42019.htm Edgar Link pending
x24e-q42019.htm Edgar Link pending
x24f-q42019.htm Edgar Link pending
x31a1-q42019.htm Edgar Link pending
x31a2-q42019.htm Edgar Link pending
x31b1-q42019.htm Edgar Link pending
x31b2-q42019.htm Edgar Link pending
x31c1-q42019.htm Edgar Link pending
x31c2-q42019.htm Edgar Link pending
x31d1-q42019.htm Edgar Link pending
x31d2-q42019.htm Edgar Link pending
x31e1-q42019.htm Edgar Link pending
x31e2-q42019.htm Edgar Link pending
x31f1-q42019.htm Edgar Link pending
x31f2-q42019.htm Edgar Link pending
x32a-q42019.htm Edgar Link pending
x32b-q42019.htm Edgar Link pending
x32c-q42019.htm Edgar Link pending
x32d-q42019.htm Edgar Link pending
x32e-q42019.htm Edgar Link pending
x32f-q42019.htm Edgar Link pending
x4a4-q42019.htm Edgar Link pending
x4b5-q42019.htm Edgar Link pending
x4c10-q42019.htm Edgar Link pending
x4e2-q42019.htm Edgar Link pending
x4f6-q42019.htm Edgar Link pending
x99f-q42019.htm Edgar Link pending