2019 Q4 Form 10-K Financial Statement
#000009212220000017 Filed on February 20, 2020
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% |
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|
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&P equivalent credit rating, which is determined by a process of converting the lower of the S&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&P and Moody's, respectively, and 1 being equivalent to D/Default by S&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&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 |