$EXC
EXELON CORP

2020 Form 10-K Financial Statement

#000110935721000022 Filed on February 24, 2021

View on sec.gov

Income Statement

Concept 2020 2019 Q4 2019
Revenue $16.66B $8.343B $16.73B
YoY Change -0.37% -5.32% -53.51%
Cost Of Revenue $13.09B $3.514B $14.46B
YoY Change -9.47% -12.74% -6.96%
Gross Profit $19.95B $4.828B $19.98B
YoY Change -0.15% 0.98% -2.25%
Gross Profit Margin 119.71% 57.87% 119.45%
Selling, General & Admin
YoY Change
% of Gross Profit
Research & Development
YoY Change
% of Gross Profit
Depreciation & Amortization $2.891B $1.387B $2.717B
YoY Change 6.4% -5.0% -37.58%
% of Gross Profit 14.49% 28.73% 13.6%
Operating Expenses $14.49B $3.879B $14.07B
YoY Change 2.93% -4.93% -56.22%
Operating Profit $2.191B $962.0M $2.656B
YoY Change -17.51% 36.26% -31.74%
Interest Expense $1.610B -$395.0M $1.591B
YoY Change 1.19% -5.05% 4.05%
% of Operating Profit 73.48% -41.06% 59.9%
Other Income/Expense, Net -$1.099B $390.0M -$1.018B
YoY Change 7.96% -220.37% -38.9%
Pretax Income $1.092B $957.0M $1.638B
YoY Change -33.33% -2618.42% -26.38%
Income Tax -$7.000M $148.0M $153.0M
% Of Pretax Income -0.64% 15.46% 9.34%
Net Earnings $1.954B $772.0M $3.028B
YoY Change -35.47% 425.17% 45.65%
Net Earnings / Revenue 11.73% 9.25% 18.1%
Basic Earnings Per Share $2.01 $0.79 $3.02
Diluted Earnings Per Share $2.01 $0.79 $3.01
COMMON SHARES
Basic Shares Outstanding 976.0M shares 973.0M shares
Diluted Shares Outstanding 977.0M shares 974.0M shares

Balance Sheet

Concept 2020 2019 Q4 2019
SHORT-TERM ASSETS
Cash & Short-Term Investments $663.0M $587.0M $587.0M
YoY Change 12.95% -56.49% -56.49%
Cash & Equivalents $663.0M $587.0M $587.0M
Short-Term Investments
Other Short-Term Assets $5.404B $905.0M $3.333B
YoY Change 62.14% -26.9% -21.47%
Inventory $1.722B $1.768B $1.768B
Prepaid Expenses
Receivables $3.375B $4.592B $4.766B
Other Receivables $1.398B $1.583B $1.583B
Total Short-Term Assets $12.56B $12.04B $12.04B
YoY Change 4.36% -9.69% -9.69%
LONG-TERM ASSETS
Property, Plant & Equipment $83.65B $80.23B $81.54B
YoY Change 2.59% 4.6% 6.3%
Goodwill $6.677B
YoY Change 0.0%
Intangibles
YoY Change
Long-Term Investments $440.0M $464.0M $464.0M
YoY Change -5.17% -25.76% -25.76%
Other Assets $25.70B $3.197B $23.93B
YoY Change 7.4% 102.98% 9.12%
Total Long-Term Assets $116.8B $112.9B $112.9B
YoY Change 3.38% 6.24% 6.24%
TOTAL ASSETS
Total Short-Term Assets $12.56B $12.04B $12.04B
Total Long-Term Assets $116.8B $112.9B $112.9B
Total Assets $129.3B $125.0B $125.0B
YoY Change 3.47% 4.47% 4.47%
SHORT-TERM LIABILITIES
YoY Change
Accounts Payable $3.562B $3.560B $3.560B
YoY Change 0.06% -6.32% -6.32%
Accrued Expenses $2.291B $1.981B $2.206B
YoY Change 3.85% -6.2% 4.45%
Deferred Revenue $33.00M
YoY Change 22.22%
Short-Term Debt $2.031B $1.370B $1.370B
YoY Change 48.25% 91.88% 91.88%
Long-Term Debt Due $1.819B -$4.710B $4.710B
YoY Change -61.38% -449.15% 249.15%
Total Short-Term Liabilities $12.77B $14.19B $14.19B
YoY Change -9.97% 24.39% 24.39%
LONG-TERM LIABILITIES
Long-Term Debt $35.48B $31.33B $31.72B
YoY Change 11.87% -8.06% -7.97%
Other Long-Term Liabilities $33.16B $3.064B $32.15B
YoY Change 3.14% 43.85% 9.36%
Total Long-Term Liabilities $68.64B $34.39B $63.87B
YoY Change 7.48% -5.0% 0.01%
TOTAL LIABILITIES
Total Short-Term Liabilities $12.77B $14.19B $14.19B
Total Long-Term Liabilities $68.64B $34.39B $63.87B
Total Liabilities $96.73B $90.40B $92.75B
YoY Change 4.29% 4.41% 4.34%
SHAREHOLDERS EQUITY
Retained Earnings $16.27B
YoY Change 10.34%
Common Stock $19.27B
YoY Change 0.83%
Preferred Stock
YoY Change
Treasury Stock (at cost) $123.0M
YoY Change 0.0%
Treasury Stock Shares 2.000M shares
Shareholders Equity $32.59B $32.22B $32.22B
YoY Change
Total Liabilities & Shareholders Equity $129.3B $125.0B $125.0B
YoY Change 3.47% 4.47% 4.47%

Cashflow Statement

Concept 2020 2019 Q4 2019
OPERATING ACTIVITIES
Net Income $1.954B $772.0M $3.028B
YoY Change -35.47% 425.17% 45.65%
Depreciation, Depletion And Amortization $2.891B $1.387B $2.717B
YoY Change 6.4% -5.0% -37.58%
Cash From Operating Activities $4.235B $1.260B $6.659B
YoY Change -36.4% -36.01% -22.96%
INVESTING ACTIVITIES
Capital Expenditures $8.048B -$1.989B $7.248B
YoY Change 11.04% -5.15% -4.56%
Acquisitions
YoY Change
Other Investing Activities -$18.00M -$56.00M -$12.00M
YoY Change 50.0% -56.25% -79.31%
Cash From Investing Activities -$4.336B -$2.045B -$7.260B
YoY Change -40.28% -8.09% -7.33%
FINANCING ACTIVITIES
Cash Dividend Paid
YoY Change
Common Stock Issuance & Retirement, Net $0.00
YoY Change
Debt Paid & Issued, Net $6.440B $1.287B
YoY Change 400.39% -27.94%
Cash From Financing Activities $145.0M -271.0M -$58.00M
YoY Change -350.0% -4.58% -73.52%
NET CHANGE
Cash From Operating Activities $4.235B 1.260B $6.659B
Cash From Investing Activities -$4.336B -2.045B -$7.260B
Cash From Financing Activities $145.0M -271.0M -$58.00M
Net Change In Cash $44.00M -1.056B -$659.0M
YoY Change -106.68% 95.56% -211.51%
FREE CASH FLOW
Cash From Operating Activities $4.235B $1.260B $6.659B
Capital Expenditures $8.048B -$1.989B $7.248B
Free Cash Flow -$3.813B $3.249B -$589.0M
YoY Change 547.37% -20.09% -156.1%

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CY2019Q4 us-gaap Retained Earnings Accumulated Deficit
RetainedEarningsAccumulatedDeficit
16267000000 USD
CY2020Q4 us-gaap Accumulated Other Comprehensive Income Loss Net Of Tax
AccumulatedOtherComprehensiveIncomeLossNetOfTax
-3400000000 USD
CY2019Q4 us-gaap Accumulated Other Comprehensive Income Loss Net Of Tax
AccumulatedOtherComprehensiveIncomeLossNetOfTax
-3194000000 USD
CY2020Q4 us-gaap Stockholders Equity
StockholdersEquity
32585000000 USD
CY2019Q4 us-gaap Stockholders Equity
StockholdersEquity
32224000000 USD
CY2020Q4 us-gaap Minority Interest
MinorityInterest
2283000000 USD
CY2019Q4 us-gaap Minority Interest
MinorityInterest
2349000000 USD
CY2020Q4 us-gaap Stockholders Equity Including Portion Attributable To Noncontrolling Interest
StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest
34868000000 USD
CY2019Q4 us-gaap Stockholders Equity Including Portion Attributable To Noncontrolling Interest
StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest
34573000000 USD
CY2020Q4 us-gaap Liabilities And Stockholders Equity
LiabilitiesAndStockholdersEquity
129317000000 USD
CY2019Q4 us-gaap Liabilities And Stockholders Equity
LiabilitiesAndStockholdersEquity
124977000000 USD
CY2017Q4 us-gaap Shares Issued
SharesIssued
965168000 shares
CY2017Q4 us-gaap Stockholders Equity Including Portion Attributable To Noncontrolling Interest
StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest
32169000000 USD
CY2018 us-gaap Profit Loss
ProfitLoss
2079000000 USD
CY2018 us-gaap Stock Issued During Period Shares Share Based Compensation Gross
StockIssuedDuringPeriodSharesShareBasedCompensationGross
3534000 shares
CY2018 us-gaap Stock Issued During Period Value Share Based Compensation Gross
StockIssuedDuringPeriodValueShareBasedCompensationGross
41000000 USD
CY2018 us-gaap Stock Issued During Period Shares Employee Stock Purchase Plans
StockIssuedDuringPeriodSharesEmployeeStockPurchasePlans
1318000 shares
CY2018 us-gaap Stock Issued During Period Value Employee Stock Purchase Plan
StockIssuedDuringPeriodValueEmployeeStockPurchasePlan
105000000 USD
CY2018 us-gaap Noncontrolling Interest Increase From Sale Of Parent Equity Interest
NoncontrollingInterestIncreaseFromSaleOfParentEquityInterest
6000000 USD
CY2018 us-gaap Minority Interest Period Increase Decrease
MinorityInterestPeriodIncreaseDecrease
-60000000 USD
CY2018 us-gaap Common Stock Dividends Per Share Declared
CommonStockDividendsPerShareDeclared
1.38
CY2020Q4 us-gaap Regulatory Assets
RegulatoryAssets
9987000000 USD
CY2020Q4 us-gaap Regulatory Assets Current
RegulatoryAssetsCurrent
1228000000 USD
CY2018 us-gaap Dividends Common Stock Cash
DividendsCommonStockCash
1339000000 USD
CY2018 us-gaap Reclassification From Accumulated Other Comprehensive Income Current Period Before Tax
ReclassificationFromAccumulatedOtherComprehensiveIncomeCurrentPeriodBeforeTax
-4000000 USD
CY2018Q4 us-gaap Shares Issued
SharesIssued
970020000 shares
CY2018Q4 us-gaap Stockholders Equity Including Portion Attributable To Noncontrolling Interest
StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest
33047000000 USD
CY2019 us-gaap Profit Loss
ProfitLoss
3028000000 USD
CY2019 us-gaap Stock Issued During Period Shares Share Based Compensation Gross
StockIssuedDuringPeriodSharesShareBasedCompensationGross
3111000 shares
CY2019 us-gaap Stock Issued During Period Value Share Based Compensation Gross
StockIssuedDuringPeriodValueShareBasedCompensationGross
40000000 USD
CY2019 us-gaap Stock Issued During Period Shares Employee Stock Purchase Plans
StockIssuedDuringPeriodSharesEmployeeStockPurchasePlans
1285000 shares
CY2019 us-gaap Stock Issued During Period Value Employee Stock Purchase Plan
StockIssuedDuringPeriodValueEmployeeStockPurchasePlan
112000000 USD
CY2019 us-gaap Noncontrolling Interest Increase From Sale Of Parent Equity Interest
NoncontrollingInterestIncreaseFromSaleOfParentEquityInterest
6000000 USD
CY2019 us-gaap Minority Interest Period Increase Decrease
MinorityInterestPeriodIncreaseDecrease
-48000000 USD
CY2019 us-gaap Common Stock Dividends Per Share Declared
CommonStockDividendsPerShareDeclared
1.45
CY2019 us-gaap Dividends Common Stock Cash
DividendsCommonStockCash
1412000000 USD
CY2019Q4 us-gaap Shares Issued
SharesIssued
974416000 shares
CY2019Q4 us-gaap Stockholders Equity Including Portion Attributable To Noncontrolling Interest
StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest
34573000000 USD
CY2020 us-gaap Profit Loss
ProfitLoss
1954000000 USD
CY2020 us-gaap Stock Issued During Period Shares Share Based Compensation Gross
StockIssuedDuringPeriodSharesShareBasedCompensationGross
1570000 shares
CY2020 us-gaap Stock Issued During Period Value Share Based Compensation Gross
StockIssuedDuringPeriodValueShareBasedCompensationGross
40000000 USD
CY2020 us-gaap Stock Issued During Period Shares Employee Stock Purchase Plans
StockIssuedDuringPeriodSharesEmployeeStockPurchasePlans
1480000 shares
CY2020 us-gaap Stock Issued During Period Value Employee Stock Purchase Plan
StockIssuedDuringPeriodValueEmployeeStockPurchasePlan
56000000 USD
CY2020 us-gaap Noncontrolling Interest Increase From Sale Of Parent Equity Interest
NoncontrollingInterestIncreaseFromSaleOfParentEquityInterest
3000000 USD
CY2020 us-gaap Minority Interest Period Increase Decrease
MinorityInterestPeriodIncreaseDecrease
-57000000 USD
CY2020 us-gaap Common Stock Dividends Per Share Declared
CommonStockDividendsPerShareDeclared
1.53
CY2020 us-gaap Dividends Common Stock Cash
DividendsCommonStockCash
1495000000 USD
CY2020Q4 us-gaap Shares Issued
SharesIssued
977466000 shares
CY2020Q4 us-gaap Stockholders Equity Including Portion Attributable To Noncontrolling Interest
StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest
34868000000 USD
CY2018 us-gaap Adjustments To Additional Paid In Capital Other
AdjustmentsToAdditionalPaidInCapitalOther
0 USD
CY2019 us-gaap Adjustments To Additional Paid In Capital Other
AdjustmentsToAdditionalPaidInCapitalOther
0 USD
CY2020 us-gaap Subsidiary Or Equity Method Investee Cumulative Percentage Ownership After All Transactions
SubsidiaryOrEquityMethodInvesteeCumulativePercentageOwnershipAfterAllTransactions
1
CY2020 us-gaap Subsidiary Or Equity Method Investee Cumulative Percentage Ownership After All Transactions
SubsidiaryOrEquityMethodInvesteeCumulativePercentageOwnershipAfterAllTransactions
1
CY2020 us-gaap Subsidiary Or Equity Method Investee Cumulative Percentage Ownership After All Transactions
SubsidiaryOrEquityMethodInvesteeCumulativePercentageOwnershipAfterAllTransactions
1
CY2020 us-gaap Guarantees Indemnifications And Warranties Policies
GuaranteesIndemnificationsAndWarrantiesPolicies
Guarantees (All Registrants)If necessary, the Registrants recognize a liability at the time of issuance of a guarantee for the fair market value of the obligations they have undertaken by issuing the guarantee. The liability is reduced or eliminated as the Registrants are released from risk under the guarantee. Depending on the nature of the guarantee, the release from risk of the Registrant may be recognized only upon the expiration or settlement of the guarantee or by a systematic and rational amortization method over the term of the guarantee.
CY2020 us-gaap Use Of Estimates
UseOfEstimates
<div style="margin-bottom:9pt;margin-top:9pt;text-align:justify"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:9pt;font-weight:700;line-height:120%">Use of Estimates (All Registrants)</span></div><div style="margin-bottom:9pt;margin-top:9pt;text-align:justify"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:9pt;font-weight:400;line-height:120%">The preparation of financial statements of each of the Registrants in conformity with GAAP requires management to make estimates and assumptions that affect the amounts reported in the financial statements and accompanying notes. Areas in which significant estimates have been made include, but are not limited to, the accounting for nuclear decommissioning costs and other AROs, pension and OPEB, inventory reserves, allowance for credit losses, goodwill and asset impairment assessments, derivative instruments, unamortized </span></div>energy contracts, fixed asset depreciation, environmental costs and other loss contingencies, taxes, and unbilled energy revenues. Actual results could differ from those estimates.
CY2020 exc Minimum Expectation Of Tax Position To Be Realized
MinimumExpectationOfTaxPositionToBeRealized
0.50
CY2020 us-gaap Financing Receivable Allowance For Credit Losses Policy For Uncollectible Amounts
FinancingReceivableAllowanceForCreditLossesPolicyForUncollectibleAmounts
<div style="margin-bottom:9pt;margin-top:9pt;text-align:justify"><span style="color:#212529;font-family:'Arial',sans-serif;font-size:9pt;font-weight:700;line-height:120%">Allowance for Credit Losses on Accounts Receivables (All Registrants)</span></div><div style="margin-bottom:9pt;margin-top:9pt;text-align:justify"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:9pt;font-weight:400;line-height:120%">The allowance for credit losses reflects the Registrants’ best estimates of losses on the customers' accounts receivable balances based on historical experience, current information, and reasonable and supportable forecasts. </span></div><div style="text-align:justify"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:9pt;font-weight:400;line-height:120%">The allowance for credit losses for Generation’s retail customers is based on accounts receivable aging historical experience coupled with specific identification through a credit monitoring process, which considers current conditions and forward-looking information such as industry trends, macroeconomic factors, changes in the regulatory environment, external credit ratings, publicly available news, payment status, payment history, and the </span></div><div style="text-align:justify"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:9pt;font-weight:400;line-height:120%">exercise of collateral calls. The allowance for credit losses for Generation wholesale customers is developed using a credit monitoring process, similar to that used for retail customers. When a wholesale customer’s risk characteristics are no longer aligned with the pooled population, Generation uses specific identification to develop an allowance for credit losses. Adjustments to the allowance for credit losses are recorded in Operating and maintenance expense on Generation’s Consolidated Statements of Operations and Comprehensive Income. </span></div><div style="text-align:justify"><span><br/></span></div><div style="text-align:justify"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:9pt;font-weight:400;line-height:120%">The allowance for credit losses for the Utility Registrants’ customers is developed by applying loss rates for each Utility Registrant, based on historical loss experience, current conditions, and forward-looking risk factors, to the outstanding receivable balance by customer risk segment. Utility Registrants' customer accounts are written off consistent with approved regulatory requirements. Adjustments to the allowance for credit losses are primarily recorded to Operating and maintenance expense on the Utility Registrants' Consolidated Statements of Operations and Comprehensive Income or Regulatory assets and liabilities on the Utility Registrants' Consolidated Balance Sheets. See Note 3 - Regulatory Matters for additional information regarding the regulatory recovery of credit losses on customer accounts receivable.</span></div>The Registrants have certain non-customer receivables in Other deferred debits and other assets which primarily are with governmental agencies and other high-quality counterparties with no history of default.  As such, the allowance for credit losses related to these receivables is not material.  The Registrants monitor these balances and will record an allowance if there are indicators of a decline in credit quality.
CY2020Q4 us-gaap Regulatory Assets Noncurrent
RegulatoryAssetsNoncurrent
8759000000 USD
CY2020Q4 us-gaap Regulatory Liabilities
RegulatoryLiabilities
10066000000 USD
CY2020Q4 us-gaap Regulatory Liability Current
RegulatoryLiabilityCurrent
581000000 USD
CY2020Q4 us-gaap Regulatory Liability Noncurrent
RegulatoryLiabilityNoncurrent
9485000000 USD
CY2019Q4 us-gaap Regulatory Assets
RegulatoryAssets
9505000000 USD
CY2019Q4 us-gaap Regulatory Assets Current
RegulatoryAssetsCurrent
1170000000 USD
CY2019Q4 us-gaap Regulatory Assets Noncurrent
RegulatoryAssetsNoncurrent
8335000000 USD
CY2019Q4 us-gaap Regulatory Liabilities
RegulatoryLiabilities
10392000000 USD
CY2019Q4 us-gaap Regulatory Liability Current
RegulatoryLiabilityCurrent
406000000 USD
CY2019Q4 us-gaap Regulatory Liability Noncurrent
RegulatoryLiabilityNoncurrent
9986000000 USD
CY2020Q4 us-gaap Public Utilities Amount Of Allowance For Earnings On Equity Capitalized For Rate Making Purposes
PublicUtilitiesAmountOfAllowanceForEarningsOnEquityCapitalizedForRateMakingPurposes
51000000 USD
CY2019Q4 us-gaap Public Utilities Amount Of Allowance For Earnings On Equity Capitalized For Rate Making Purposes
PublicUtilitiesAmountOfAllowanceForEarningsOnEquityCapitalizedForRateMakingPurposes
63000000 USD
CY2018Q4 us-gaap Contract With Customer Asset Net Current
ContractWithCustomerAssetNetCurrent
187000000 USD
CY2019 us-gaap Contract With Customer Asset Reclassified To Receivable
ContractWithCustomerAssetReclassifiedToReceivable
-143000000 USD
CY2019 us-gaap Contract With Customer Asset Cumulative Catch Up Adjustment To Revenue Change In Measure Of Progress
ContractWithCustomerAssetCumulativeCatchUpAdjustmentToRevenueChangeInMeasureOfProgress
-130000000 USD
CY2019Q4 us-gaap Contract With Customer Asset Net Current
ContractWithCustomerAssetNetCurrent
174000000 USD
CY2020 us-gaap Contract With Customer Asset Reclassified To Receivable
ContractWithCustomerAssetReclassifiedToReceivable
-86000000 USD
CY2020 us-gaap Contract With Customer Asset Cumulative Catch Up Adjustment To Revenue Change In Measure Of Progress
ContractWithCustomerAssetCumulativeCatchUpAdjustmentToRevenueChangeInMeasureOfProgress
-68000000 USD
CY2020 us-gaap Contract With Customer Asset Increase Decrease For Contract Acquired In Business Combination
ContractWithCustomerAssetIncreaseDecreaseForContractAcquiredInBusinessCombination
-12000000 USD
CY2020Q4 us-gaap Contract With Customer Asset Net Current
ContractWithCustomerAssetNetCurrent
144000000 USD
CY2017Q4 us-gaap Contract With Customer Liability
ContractWithCustomerLiability
35000000 USD
CY2018 us-gaap Contract With Customer Liability Cumulative Catch Up Adjustment To Revenue Modification Of Contract
ContractWithCustomerLiabilityCumulativeCatchUpAdjustmentToRevenueModificationOfContract
179000000 USD
CY2018 us-gaap Contract With Customer Liability Revenue Recognized
ContractWithCustomerLiabilityRevenueRecognized
-187000000 USD
CY2018Q4 us-gaap Contract With Customer Liability
ContractWithCustomerLiability
27000000 USD
CY2019 us-gaap Contract With Customer Liability Cumulative Catch Up Adjustment To Revenue Modification Of Contract
ContractWithCustomerLiabilityCumulativeCatchUpAdjustmentToRevenueModificationOfContract
94000000 USD
CY2019 us-gaap Contract With Customer Liability Revenue Recognized
ContractWithCustomerLiabilityRevenueRecognized
-88000000 USD
CY2019Q4 us-gaap Contract With Customer Liability
ContractWithCustomerLiability
33000000 USD
CY2020 us-gaap Contract With Customer Liability Cumulative Catch Up Adjustment To Revenue Modification Of Contract
ContractWithCustomerLiabilityCumulativeCatchUpAdjustmentToRevenueModificationOfContract
219000000 USD
CY2020 us-gaap Contract With Customer Liability Revenue Recognized
ContractWithCustomerLiabilityRevenueRecognized
-98000000 USD
CY2020 us-gaap Contract With Customer Liability Increase Decrease For Contract Acquired In Business Combination
ContractWithCustomerLiabilityIncreaseDecreaseForContractAcquiredInBusinessCombination
-3000000 USD
CY2020Q4 us-gaap Contract With Customer Liability
ContractWithCustomerLiability
151000000 USD
CY2020 us-gaap Contract With Customer Performance Obligation Satisfied In Previous Period
ContractWithCustomerPerformanceObligationSatisfiedInPreviousPeriod
27000000 USD
CY2019 us-gaap Contract With Customer Performance Obligation Satisfied In Previous Period
ContractWithCustomerPerformanceObligationSatisfiedInPreviousPeriod
18000000 USD
CY2018 us-gaap Contract With Customer Performance Obligation Satisfied In Previous Period
ContractWithCustomerPerformanceObligationSatisfiedInPreviousPeriod
11000000 USD
CY2020Q4 us-gaap Revenue Remaining Performance Obligation
RevenueRemainingPerformanceObligation
262000000 USD
CY2020Q4 us-gaap Revenue Remaining Performance Obligation
RevenueRemainingPerformanceObligation
93000000 USD
CY2020Q4 us-gaap Revenue Remaining Performance Obligation
RevenueRemainingPerformanceObligation
54000000 USD
CY2020Q4 us-gaap Revenue Remaining Performance Obligation
RevenueRemainingPerformanceObligation
40000000 USD
CY2020Q4 us-gaap Revenue Remaining Performance Obligation
RevenueRemainingPerformanceObligation
330000000 USD
CY2020Q4 us-gaap Revenue Remaining Performance Obligation
RevenueRemainingPerformanceObligation
779000000 USD
CY2020 us-gaap Number Of Reportable Segments
NumberOfReportableSegments
11 Reportable_segment
CY2020 us-gaap Depreciation Depletion And Amortization
DepreciationDepletionAndAmortization
5014000000 USD
CY2019 us-gaap Depreciation Depletion And Amortization
DepreciationDepletionAndAmortization
4252000000 USD
CY2018 us-gaap Depreciation Depletion And Amortization
DepreciationDepletionAndAmortization
4353000000 USD
CY2020 us-gaap Operating Expenses
OperatingExpenses
30240000000 USD
CY2019 us-gaap Operating Expenses
OperatingExpenses
30096000000 USD
CY2018 us-gaap Operating Expenses
OperatingExpenses
32143000000 USD
CY2020 us-gaap Interest Revenue Expense Net
InterestRevenueExpenseNet
1635000000 USD
CY2019 us-gaap Interest Revenue Expense Net
InterestRevenueExpenseNet
1616000000 USD
CY2018 us-gaap Interest Revenue Expense Net
InterestRevenueExpenseNet
1554000000 USD
CY2020 us-gaap Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest
IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest
2333000000 USD
CY2019 us-gaap Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest
IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest
3985000000 USD
CY2018 us-gaap Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest
IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest
2225000000 USD
CY2020 us-gaap Income Tax Expense Benefit
IncomeTaxExpenseBenefit
373000000 USD
CY2019 us-gaap Income Tax Expense Benefit
IncomeTaxExpenseBenefit
774000000 USD
CY2018 us-gaap Income Tax Expense Benefit
IncomeTaxExpenseBenefit
118000000 USD
CY2020 us-gaap Payments To Acquire Property Plant And Equipment
PaymentsToAcquirePropertyPlantAndEquipment
8048000000 USD
CY2019 us-gaap Payments To Acquire Property Plant And Equipment
PaymentsToAcquirePropertyPlantAndEquipment
7248000000 USD
CY2018 us-gaap Payments To Acquire Property Plant And Equipment
PaymentsToAcquirePropertyPlantAndEquipment
7594000000 USD
CY2020Q4 us-gaap Unbilled Contracts Receivable
UnbilledContractsReceivable
998000000 USD
CY2019Q4 us-gaap Unbilled Contracts Receivable
UnbilledContractsReceivable
1535000000 USD
CY2020 us-gaap Securitization Financial Asset For Which Transfer Is Accounted As Sale Gain Loss On Sale
SecuritizationFinancialAssetForWhichTransferIsAccountedAsSaleGainLossOnSale
30000000 USD
CY2020 us-gaap Cash Flows Between Transferee And Transferor Proceeds From New Transfers
CashFlowsBetweenTransfereeAndTransferorProceedsFromNewTransfers
2816000000 USD
CY2020 us-gaap Cash Flows Between Transferor And Transferee Beneficial Interest
CashFlowsBetweenTransferorAndTransfereeBeneficialInterest
3771000000 USD
CY2020 us-gaap Cash Flows Between Transferee And Transferor Proceeds From Collections Reinvested In Revolving Period Transfers
CashFlowsBetweenTransfereeAndTransferorProceedsFromCollectionsReinvestedInRevolvingPeriodTransfers
6587000000 USD
CY2020 us-gaap Accounts Receivable Purchase
AccountsReceivablePurchase
3529000000 USD
CY2020 us-gaap Accounts Receivable Sale
AccountsReceivableSale
572000000 USD
CY2020Q4 us-gaap Property Plant And Equipment Gross
PropertyPlantAndEquipmentGross
109311000000 USD
CY2020Q4 us-gaap Accumulated Depreciation Depletion And Amortization Property Plant And Equipment
AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment
26727000000 USD
CY2020Q4 us-gaap Public Utilities Property Plant And Equipment Net
PublicUtilitiesPropertyPlantAndEquipmentNet
82584000000 USD
CY2019Q4 us-gaap Property Plant And Equipment Gross
PropertyPlantAndEquipmentGross
104212000000 USD
CY2019Q4 us-gaap Accumulated Depreciation Depletion And Amortization Property Plant And Equipment
AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment
23979000000 USD
CY2019Q4 us-gaap Public Utilities Property Plant And Equipment Net
PublicUtilitiesPropertyPlantAndEquipmentNet
80233000000 USD
CY2020 us-gaap Interest Costs Capitalized
InterestCostsCapitalized
22000000 USD
CY2020 us-gaap Public Utilities Allowance For Funds Used During Construction Capitalized Interest
PublicUtilitiesAllowanceForFundsUsedDuringConstructionCapitalizedInterest
150000000 USD
CY2019 us-gaap Interest Costs Capitalized
InterestCostsCapitalized
24000000 USD
CY2019 us-gaap Public Utilities Allowance For Funds Used During Construction Capitalized Interest
PublicUtilitiesAllowanceForFundsUsedDuringConstructionCapitalizedInterest
132000000 USD
CY2018 us-gaap Interest Costs Capitalized
InterestCostsCapitalized
31000000 USD
CY2018 us-gaap Public Utilities Allowance For Funds Used During Construction Capitalized Interest
PublicUtilitiesAllowanceForFundsUsedDuringConstructionCapitalizedInterest
109000000 USD
CY2020 exc Scheduleofjointlyownedelectricutilityplanttextblock
Scheduleofjointlyownedelectricutilityplanttextblock
Jointly Owned Electric Utility Plant (Exelon, Generation, PECO, DPL, and ACE)<div style="margin-bottom:9pt;margin-top:9pt;text-align:justify"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:9pt;font-weight:400;line-height:120%">Exelon's, Generation's, PECO's, DPL's, and ACE's material undivided ownership interests in jointly owned electric plants and transmission facilities at December 31, 2020 and 2019 were as follows:</span></div><div style="margin-bottom:5pt;margin-top:5pt"><table style="border-collapse:collapse;display:inline-table;vertical-align:top;width:99.500%"><tr><td style="width:1.0%"/><td style="width:34.410%"/><td style="width:0.1%"/><td style="width:1.0%"/><td style="width:11.127%"/><td style="width:0.1%"/><td style="width:0.1%"/><td style="width:0.637%"/><td style="width:0.1%"/><td style="width:1.0%"/><td style="width:11.127%"/><td style="width:0.1%"/><td style="width:0.1%"/><td style="width:0.637%"/><td style="width:0.1%"/><td style="width:1.0%"/><td style="width:11.127%"/><td style="width:0.1%"/><td style="width:0.1%"/><td style="width:0.637%"/><td style="width:0.1%"/><td style="width:1.0%"/><td style="width:11.127%"/><td style="width:0.1%"/><td style="width:0.1%"/><td style="width:0.637%"/><td style="width:0.1%"/><td style="width:1.0%"/><td style="width:11.134%"/><td style="width:0.1%"/></tr><tr><td colspan="3" style="padding:0 1pt"/><td colspan="21" style="padding:2px 1pt;text-align:center;vertical-align:bottom"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:7pt;font-weight:700;line-height:120%">Nuclear Generation</span></td><td colspan="3" style="padding:0 1pt"/><td colspan="3" style="padding:2px 1pt;text-align:center;vertical-align:bottom"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:7pt;font-weight:700;line-height:120%">Transmission</span></td></tr><tr><td colspan="3" style="padding:0 1pt"/><td colspan="3" style="border-top:1pt solid #000000;padding:2px 1pt;text-align:center;vertical-align:bottom"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:7pt;font-weight:700;line-height:120%">Quad Cities</span></td><td colspan="3" style="border-top:1pt solid #000000;padding:0 1pt"/><td colspan="3" style="border-top:1pt solid #000000;padding:2px 1pt;text-align:center;vertical-align:bottom"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:7pt;font-weight:700;line-height:120%">Peach<br/>Bottom</span></td><td colspan="3" style="border-top:1pt solid #000000;padding:0 1pt"/><td colspan="3" style="border-top:1pt solid #000000;padding:2px 1pt;text-align:center;vertical-align:bottom"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:7pt;font-weight:700;line-height:120%">Salem</span></td><td colspan="3" style="border-top:1pt solid #000000;padding:0 1pt"/><td colspan="3" style="border-top:1pt solid #000000;padding:2px 1pt;text-align:center;vertical-align:bottom"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:7pt;font-weight:700;line-height:120%">Nine Mile Point Unit 2</span></td><td colspan="3" style="padding:0 1pt"/><td colspan="3" style="border-top:1pt solid #000000;padding:2px 1pt;text-align:left;vertical-align:bottom"><div style="text-align:center"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:7pt;font-weight:700;line-height:100%">NJ/DE</span><span style="color:#000000;font-family:'Arial',sans-serif;font-size:4.55pt;font-weight:700;line-height:100%;position:relative;top:-2.44pt;vertical-align:baseline">(a)</span></div></td></tr><tr><td colspan="3" style="background-color:#cceeff;padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:7pt;font-weight:700;line-height:120%">Operator</span></td><td colspan="3" style="background-color:#cceeff;border-top:1pt solid #000000;padding:2px 1pt;text-align:center;vertical-align:bottom"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:7pt;font-weight:700;line-height:120%">Generation</span></td><td colspan="3" style="background-color:#cceeff;padding:0 1pt"/><td colspan="3" style="background-color:#cceeff;border-top:1pt solid #000000;padding:2px 1pt;text-align:center;vertical-align:bottom"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:7pt;font-weight:700;line-height:120%">Generation</span></td><td colspan="3" style="background-color:#cceeff;padding:0 1pt"/><td colspan="3" style="background-color:#cceeff;border-top:1pt solid #000000;padding:2px 1pt;text-align:center;vertical-align:bottom"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:7pt;font-weight:700;line-height:120%">PSEG<br/>Nuclear</span></td><td colspan="3" style="background-color:#cceeff;padding:0 1pt"/><td colspan="3" style="background-color:#cceeff;border-top:1pt solid #000000;padding:2px 1pt;text-align:center;vertical-align:bottom"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:7pt;font-weight:700;line-height:120%">Generation</span></td><td colspan="3" style="background-color:#cceeff;padding:0 1pt"/><td colspan="3" style="background-color:#cceeff;border-top:1pt solid #000000;padding:2px 1pt;text-align:center;vertical-align:bottom"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:7pt;font-weight:700;line-height:120%">PSEG/DPL</span></td></tr><tr><td colspan="3" style="background-color:#ffffff;padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:9pt;font-weight:400;line-height:120%">Ownership interest</span></td><td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:9pt;font-weight:400;line-height:120%">75.00 </span></td><td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:9pt;font-weight:400;line-height:120%">%</span></td><td colspan="3" style="background-color:#ffffff;padding:0 1pt"/><td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:9pt;font-weight:400;line-height:120%">50.00 </span></td><td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:9pt;font-weight:400;line-height:120%">%</span></td><td colspan="3" style="background-color:#ffffff;padding:0 1pt"/><td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:9pt;font-weight:400;line-height:120%">42.59 </span></td><td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:9pt;font-weight:400;line-height:120%">%</span></td><td colspan="3" style="background-color:#ffffff;padding:0 1pt"/><td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:9pt;font-weight:400;line-height:120%">82.00 </span></td><td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:9pt;font-weight:400;line-height:120%">%</span></td><td colspan="3" style="background-color:#ffffff;padding:0 1pt"/><td colspan="3" style="background-color:#ffffff;padding:2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:9pt;font-weight:400;line-height:120%">various</span></td></tr><tr><td colspan="3" style="background-color:#cceeff;padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:7pt;font-weight:700;line-height:120%">Exelon’s share at December 31, 2020:</span></td><td colspan="3" style="background-color:#cceeff;padding:0 1pt"/><td colspan="3" style="background-color:#cceeff;padding:0 1pt"/><td colspan="3" style="background-color:#cceeff;padding:0 1pt"/><td colspan="3" style="background-color:#cceeff;padding:0 1pt"/><td colspan="3" style="background-color:#cceeff;padding:0 1pt"/><td colspan="3" style="background-color:#cceeff;padding:0 1pt"/><td colspan="3" style="background-color:#cceeff;padding:0 1pt"/><td colspan="3" style="background-color:#cceeff;padding:0 1pt"/><td colspan="3" style="background-color:#cceeff;padding:0 1pt"/></tr><tr><td colspan="3" style="background-color:#ffffff;padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:9pt;font-weight:400;line-height:120%">Plant in service</span></td><td style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:9pt;font-weight:400;line-height:120%">$</span></td><td style="background-color:#ffffff;padding:2px 0;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:9pt;font-weight:400;line-height:120%">1,188 </span></td><td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/><td colspan="3" style="background-color:#ffffff;padding:0 1pt"/><td style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:9pt;font-weight:400;line-height:120%">$</span></td><td style="background-color:#ffffff;padding:2px 0;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:9pt;font-weight:400;line-height:120%">1,506 </span></td><td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/><td colspan="3" style="background-color:#ffffff;padding:0 1pt"/><td style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:9pt;font-weight:400;line-height:120%">$</span></td><td style="background-color:#ffffff;padding:2px 0;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:9pt;font-weight:400;line-height:120%">717 </span></td><td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/><td colspan="3" style="background-color:#ffffff;padding:0 1pt"/><td style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:9pt;font-weight:400;line-height:120%">$</span></td><td style="background-color:#ffffff;padding:2px 0;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:9pt;font-weight:400;line-height:120%">990 </span></td><td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/><td colspan="3" style="background-color:#ffffff;padding:0 1pt"/><td style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:9pt;font-weight:400;line-height:120%">$</span></td><td style="background-color:#ffffff;padding:2px 0;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:9pt;font-weight:400;line-height:120%">103 </span></td><td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/></tr><tr><td colspan="3" style="background-color:#cceeff;padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:9pt;font-weight:400;line-height:120%">Accumulated depreciation</span></td><td colspan="2" style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:9pt;font-weight:400;line-height:120%">670 </span></td><td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/><td colspan="3" style="background-color:#cceeff;padding:0 1pt"/><td colspan="2" style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:9pt;font-weight:400;line-height:120%">601 </span></td><td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/><td colspan="3" style="background-color:#cceeff;padding:0 1pt"/><td colspan="2" style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:9pt;font-weight:400;line-height:120%">265 </span></td><td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/><td colspan="3" style="background-color:#cceeff;padding:0 1pt"/><td colspan="2" style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:9pt;font-weight:400;line-height:120%">187 </span></td><td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/><td colspan="3" style="background-color:#cceeff;padding:0 1pt"/><td colspan="2" style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:9pt;font-weight:400;line-height:120%">54 </span></td><td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/></tr><tr><td colspan="3" style="background-color:#ffffff;padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:9pt;font-weight:400;line-height:120%">Construction work in progress</span></td><td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:9pt;font-weight:400;line-height:120%">13 </span></td><td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/><td colspan="3" style="background-color:#ffffff;padding:0 1pt"/><td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:9pt;font-weight:400;line-height:120%">13 </span></td><td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/><td colspan="3" style="background-color:#ffffff;padding:0 1pt"/><td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:9pt;font-weight:400;line-height:120%">39 </span></td><td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/><td colspan="3" style="background-color:#ffffff;padding:0 1pt"/><td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:9pt;font-weight:400;line-height:120%">25 </span></td><td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/><td colspan="3" style="background-color:#ffffff;padding:0 1pt"/><td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:9pt;font-weight:400;line-height:120%">— </span></td><td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/></tr><tr><td colspan="3" style="background-color:#cceeff;padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:7pt;font-weight:700;line-height:120%">Exelon’s share at December 31, 2019:</span></td><td colspan="3" style="background-color:#cceeff;padding:0 1pt"/><td colspan="3" style="background-color:#cceeff;padding:0 1pt"/><td colspan="3" style="background-color:#cceeff;padding:0 1pt"/><td colspan="3" style="background-color:#cceeff;padding:0 1pt"/><td colspan="3" style="background-color:#cceeff;padding:0 1pt"/><td colspan="3" style="background-color:#cceeff;padding:0 1pt"/><td colspan="3" style="background-color:#cceeff;padding:0 1pt"/><td colspan="3" style="background-color:#cceeff;padding:0 1pt"/><td colspan="3" style="background-color:#cceeff;padding:0 1pt"/></tr><tr><td colspan="3" style="background-color:#ffffff;padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:9pt;font-weight:400;line-height:120%">Plant in service</span></td><td style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:9pt;font-weight:400;line-height:120%">$</span></td><td style="background-color:#ffffff;padding:2px 0;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:9pt;font-weight:400;line-height:120%">1,161 </span></td><td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/><td colspan="3" style="background-color:#ffffff;padding:0 1pt"/><td style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:9pt;font-weight:400;line-height:120%">$</span></td><td style="background-color:#ffffff;padding:2px 0;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:9pt;font-weight:400;line-height:120%">1,466 </span></td><td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/><td colspan="3" style="background-color:#ffffff;padding:0 1pt"/><td style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:9pt;font-weight:400;line-height:120%">$</span></td><td style="background-color:#ffffff;padding:2px 0;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:9pt;font-weight:400;line-height:120%">663 </span></td><td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/><td colspan="3" style="background-color:#ffffff;padding:0 1pt"/><td style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:9pt;font-weight:400;line-height:120%">$</span></td><td style="background-color:#ffffff;padding:2px 0;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:9pt;font-weight:400;line-height:120%">951 </span></td><td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/><td colspan="3" style="background-color:#ffffff;padding:0 1pt"/><td style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:9pt;font-weight:400;line-height:120%">$</span></td><td style="background-color:#ffffff;padding:2px 0;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:9pt;font-weight:400;line-height:120%">102 </span></td><td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/></tr><tr><td colspan="3" style="background-color:#cceeff;padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:9pt;font-weight:400;line-height:120%">Accumulated depreciation</span></td><td colspan="2" style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:9pt;font-weight:400;line-height:120%">627 </span></td><td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/><td colspan="3" style="background-color:#cceeff;padding:0 1pt"/><td colspan="2" style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:9pt;font-weight:400;line-height:120%">571 </span></td><td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/><td colspan="3" style="background-color:#cceeff;padding:0 1pt"/><td colspan="2" style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:9pt;font-weight:400;line-height:120%">249 </span></td><td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/><td colspan="3" style="background-color:#cceeff;padding:0 1pt"/><td colspan="2" style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:9pt;font-weight:400;line-height:120%">156 </span></td><td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/><td colspan="3" style="background-color:#cceeff;padding:0 1pt"/><td colspan="2" style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:9pt;font-weight:400;line-height:120%">53 </span></td><td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/></tr><tr><td colspan="3" style="background-color:#ffffff;padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:9pt;font-weight:400;line-height:120%">Construction work in progress</span></td><td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:9pt;font-weight:400;line-height:120%">13 </span></td><td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/><td colspan="3" style="background-color:#ffffff;padding:0 1pt"/><td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:9pt;font-weight:400;line-height:120%">21 </span></td><td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/><td colspan="3" style="background-color:#ffffff;padding:0 1pt"/><td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:9pt;font-weight:400;line-height:120%">53 </span></td><td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/><td colspan="3" style="background-color:#ffffff;padding:0 1pt"/><td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:9pt;font-weight:400;line-height:120%">27 </span></td><td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/><td colspan="3" style="background-color:#ffffff;padding:0 1pt"/><td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:9pt;font-weight:400;line-height:120%">— </span></td><td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/></tr></table></div><div><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:120%">__________</span></div><div style="padding-left:18pt;text-align:justify;text-indent:-18pt"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:8pt;font-weight:400;line-height:120%">(a)</span><span style="color:#000000;font-family:'Arial',sans-serif;font-size:8pt;font-weight:400;line-height:120%;padding-left:8.24pt">PECO, DPL, and ACE own a 42.55%, 1%, and 13.9% share, respectively in 151.3 miles of 500kV lines located in New Jersey and of the Salem generating plant substation. PECO, DPL, and ACE also own a 42.55%, 7.45%, and 7.45% share, respectively, in 2.5 miles of 500kV line located over the Delaware River. ACE also has a 21.78% share in a 500kV New Freedom Switching substation.</span></div><div style="margin-bottom:9pt;margin-top:9pt;text-align:justify"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:9pt;font-weight:400;line-height:120%">Exelon’s, Generation’s, PECO's, DPL's, and ACE's undivided ownership interests are financed with their funds and all operations are accounted for as if such participating interests were wholly owned facilities. Exelon’s, Generation’s, PECO's, DPL's, and ACE's share of direct expenses of the jointly owned plants are included in Purchased power and fuel and Operating and maintenance expenses in Exelon’s and Generation’s Consolidated Statements of Operations and Comprehensive Income and in Operating and maintenance expenses in PECO's, PHI's, DPL's, and ACE's Consolidated Statements of Operations and Comprehensive Income.</span></div>
CY2020 exc Increase Decreasein Aro Dueto Early Retirement
IncreaseDecreaseinARODuetoEarlyRetirement
800000000 USD
CY2020 exc Increase Decrease In Aro Due To Change In Doe Spent Fuel Acceptance Date
IncreaseDecreaseInARODueToChangeInDOESpentFuelAcceptanceDate
360000000 USD
CY2020 exc Increase Decreasein Ar Ofor Impactsof Revised Decommissioning Cost Estimates
IncreaseDecreaseinAROforImpactsofRevisedDecommissioningCostEstimates
-220000000 USD
CY2019 exc Increase Decreasein Aro Dueto Changein Retirement Timing Probabilities
IncreaseDecreaseinARODuetoChangeinRetirementTimingProbabilities
780000000 USD
CY2019 exc Increase Decreasein Ar Ofor Other Impacts
IncreaseDecreaseinAROforOtherImpacts
490000000 USD
CY2019 exc Increase Decreasein Aro Dueto Early Retirement
IncreaseDecreaseinARODuetoEarlyRetirement
-410000000 USD
CY2020Q4 exc Uncollectible Decommissioning Shortfall
UncollectibleDecommissioningShortfall
50000000 USD
CY2020Q4 exc Uncollectible Decommissioning Shortfall Percentage
UncollectibleDecommissioningShortfallPercentage
0.05
CY2020Q4 exc Uncollectible Decommissioning Shortfall
UncollectibleDecommissioningShortfall
50000000 USD
CY2020Q4 exc Uncollectible Decommissioning Shortfall Percentage
UncollectibleDecommissioningShortfallPercentage
0.05
CY2020Q4 exc Assumed Returnson Ndt Funds
AssumedReturnsonNDTFunds
0.02
CY2020 exc Asset Retirement Obligation Accretion Rate
AssetRetirementObligationAccretionRate
0.04
CY2020Q4 exc Returnon Nuclear Decommissioning Funds Historical
ReturnonNuclearDecommissioningFundsHistorical
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OperatingLeaseCost
292000000 USD
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CY2020 us-gaap Lease Cost
LeaseCost
535000000 USD
CY2019 us-gaap Operating Lease Cost
OperatingLeaseCost
320000000 USD
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CY2019 us-gaap Short Term Lease Cost
ShortTermLeaseCost
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CY2019 us-gaap Lease Cost
LeaseCost
639000000 USD
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SubleaseIncome
48000000 USD
CY2019 us-gaap Sublease Income
SubleaseIncome
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670000000 USD
CY2020Q4 us-gaap Operating Lease Liability
OperatingLeaseLiability
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CY2019Q4 us-gaap Operating Lease Liability
OperatingLeaseLiability
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OperatingLeaseWeightedAverageDiscountRatePercent
0.047
CY2019Q4 us-gaap Operating Lease Weighted Average Discount Rate Percent
OperatingLeaseWeightedAverageDiscountRatePercent
0.046
CY2020Q4 us-gaap Lessee Operating Lease Liability Payments Remainder Of Fiscal Year
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239000000 USD
CY2020Q4 us-gaap Lessee Operating Lease Liability Payments Due Next Twelve Months
LesseeOperatingLeaseLiabilityPaymentsDueNextTwelveMonths
177000000 USD
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146000000 USD
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LesseeOperatingLeaseLiabilityPaymentsDueYearThree
141000000 USD
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LesseeOperatingLeaseLiabilityPaymentsDueYearFour
140000000 USD
CY2020Q4 us-gaap Lessee Operating Lease Liability Payments Due After Year Five
LesseeOperatingLeaseLiabilityPaymentsDueAfterYearFive
834000000 USD
CY2020Q4 us-gaap Lessee Operating Lease Liability Payments Due
LesseeOperatingLeaseLiabilityPaymentsDue
1677000000 USD
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LesseeOperatingLeaseLiabilityUndiscountedExcessAmount
375000000 USD
CY2020Q4 us-gaap Operating Lease Liability
OperatingLeaseLiability
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OperatingLeasePayments
271000000 USD
CY2019 us-gaap Operating Lease Payments
OperatingLeasePayments
287000000 USD
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CY2019 us-gaap Right Of Use Asset Obtained In Exchange For Operating Lease Liability
RightOfUseAssetObtainedInExchangeForOperatingLeaseLiability
52000000 USD
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OperatingLeaseLeaseIncomeLeasePayments
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OperatingLeaseVariableLeaseIncome
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OperatingLeaseLeaseIncomeLeasePayments
54000000 USD
CY2019 us-gaap Operating Lease Variable Lease Income
OperatingLeaseVariableLeaseIncome
261000000 USD
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LessorOperatingLeasePaymentsToBeReceivedRemainderOfFiscalYear
51000000 USD
CY2020Q4 us-gaap Lessor Operating Lease Payments To Be Received Next Twelve Months
LessorOperatingLeasePaymentsToBeReceivedNextTwelveMonths
50000000 USD
CY2020Q4 us-gaap Lessor Operating Lease Payments To Be Received Two Years
LessorOperatingLeasePaymentsToBeReceivedTwoYears
49000000 USD
CY2020Q4 us-gaap Lessor Operating Lease Payments To Be Received Three Years
LessorOperatingLeasePaymentsToBeReceivedThreeYears
49000000 USD
CY2020Q4 us-gaap Lessor Operating Lease Payments To Be Received Four Years
LessorOperatingLeasePaymentsToBeReceivedFourYears
48000000 USD
CY2020Q4 us-gaap Lessor Operating Lease Payments To Be Received Thereafter
LessorOperatingLeasePaymentsToBeReceivedThereafter
217000000 USD
CY2020Q4 us-gaap Lessor Operating Lease Payments To Be Received
LessorOperatingLeasePaymentsToBeReceived
464000000 USD
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GoodwillImpairmentLossNetOfTax
0 USD
CY2019 us-gaap Goodwill Acquired During Period
GoodwillAcquiredDuringPeriod
0 USD
CY2020 us-gaap Goodwill Acquired During Period
GoodwillAcquiredDuringPeriod
0 USD
CY2020 us-gaap Goodwill Impairment Loss Net Of Tax
GoodwillImpairmentLossNetOfTax
0 USD
CY2019Q4 us-gaap Goodwill Gross
GoodwillGross
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CY2020Q4 us-gaap Goodwill Gross
GoodwillGross
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CY2019Q4 us-gaap Goodwill Impaired Accumulated Impairment Loss
GoodwillImpairedAccumulatedImpairmentLoss
1983000000 USD
CY2020Q4 us-gaap Goodwill Impaired Accumulated Impairment Loss
GoodwillImpairedAccumulatedImpairmentLoss
1983000000 USD
CY2019Q4 us-gaap Goodwill
Goodwill
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CY2020Q4 us-gaap Goodwill
Goodwill
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FiniteLivedIntangibleAssetsGross
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FiniteLivedIntangibleAssetsAccumulatedAmortization
1081000000 USD
CY2020Q4 us-gaap Finite Lived Intangible Assets Net
FiniteLivedIntangibleAssetsNet
172000000 USD
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FiniteLivedIntangibleAssetsGross
1295000000 USD
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FiniteLivedIntangibleAssetsAccumulatedAmortization
1121000000 USD
CY2019Q4 us-gaap Finite Lived Intangible Assets Net
FiniteLivedIntangibleAssetsNet
174000000 USD
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AmortizationOfIntangibleAssets
-17000000 USD
CY2019 us-gaap Amortization Of Intangible Assets
AmortizationOfIntangibleAssets
-28000000 USD
CY2018 us-gaap Amortization Of Intangible Assets
AmortizationOfIntangibleAssets
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CY2020 us-gaap Effective Income Tax Rate Reconciliation Tax Credits Investment
EffectiveIncomeTaxRateReconciliationTaxCreditsInvestment
0.011
CY2020Q4 us-gaap Finite Lived Intangible Assets Amortization Expense Next Twelve Months
FiniteLivedIntangibleAssetsAmortizationExpenseNextTwelveMonths
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FiniteLivedIntangibleAssetsAmortizationExpenseYearTwo
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FiniteLivedIntangibleAssetsAmortizationExpenseYearThree
-20000000 USD
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FiniteLivedIntangibleAssetsAmortizationExpenseYearFour
20000000 USD
CY2020Q4 us-gaap Finite Lived Intangible Assets Amortization Expense Year Five
FiniteLivedIntangibleAssetsAmortizationExpenseYearFive
40000000 USD
CY2020 us-gaap Income Tax Expense Benefit
IncomeTaxExpenseBenefit
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CY2019 us-gaap Income Tax Expense Benefit
IncomeTaxExpenseBenefit
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CY2018 us-gaap Income Tax Expense Benefit
IncomeTaxExpenseBenefit
118000000 USD
CY2020 us-gaap Effective Income Tax Rate Reconciliation At Federal Statutory Income Tax Rate
EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate
0.210
CY2020 us-gaap Effective Income Tax Rate Reconciliation State And Local Income Taxes
EffectiveIncomeTaxRateReconciliationStateAndLocalIncomeTaxes
0.078
CY2020 exc Effective Income Tax Rate Reconciliation Qualified Decommissioning Investment Income Percent
EffectiveIncomeTaxRateReconciliationQualifiedDecommissioningInvestmentIncomePercent
0.084
CY2020 exc Effective Income Tax Rate Reconciliation Deferred Prosecution Agreement Payments
EffectiveIncomeTaxRateReconciliationDeferredProsecutionAgreementPayments
0.018
CY2020 us-gaap Effective Income Tax Rate Reconciliation Deductions Other
EffectiveIncomeTaxRateReconciliationDeductionsOther
0.040
CY2020 us-gaap Effective Income Tax Rate Reconciliation Tax Credits Other
EffectiveIncomeTaxRateReconciliationTaxCreditsOther
0.022
CY2020 us-gaap Effective Income Tax Rate Reconciliation Minority Interest Income Expense
EffectiveIncomeTaxRateReconciliationMinorityInterestIncomeExpense
-0.011
CY2020 exc Effective Income Tax Rate Reconciliation Changein Enacted Tax Law Percent
EffectiveIncomeTaxRateReconciliationChangeinEnactedTaxLawPercent
-0.136
CY2020 us-gaap Effective Income Tax Rate Reconciliation Tax Settlements
EffectiveIncomeTaxRateReconciliationTaxSettlements
-0.037
CY2020 us-gaap Effective Income Tax Rate Reconciliation Other Adjustments
EffectiveIncomeTaxRateReconciliationOtherAdjustments
0.005
CY2020 us-gaap Effective Income Tax Rate Continuing Operations
EffectiveIncomeTaxRateContinuingOperations
0.160
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
0.054
CY2019 exc Effective Income Tax Rate Reconciliation Qualified Decommissioning Investment Income Percent
EffectiveIncomeTaxRateReconciliationQualifiedDecommissioningInvestmentIncomePercent
0.059
CY2019 us-gaap Effective Income Tax Rate Reconciliation Tax Credits Investment
EffectiveIncomeTaxRateReconciliationTaxCreditsInvestment
0.015
CY2019 us-gaap Effective Income Tax Rate Reconciliation Deductions Other
EffectiveIncomeTaxRateReconciliationDeductionsOther
0.014
CY2019 us-gaap Effective Income Tax Rate Reconciliation Tax Credits Other
EffectiveIncomeTaxRateReconciliationTaxCreditsOther
0.031
CY2019 us-gaap Effective Income Tax Rate Reconciliation Minority Interest Income Expense
EffectiveIncomeTaxRateReconciliationMinorityInterestIncomeExpense
0.006
CY2019 exc Effective Income Tax Rate Reconciliation Changein Enacted Tax Law Percent
EffectiveIncomeTaxRateReconciliationChangeinEnactedTaxLawPercent
-0.055
CY2019 us-gaap Effective Income Tax Rate Reconciliation Other Adjustments
EffectiveIncomeTaxRateReconciliationOtherAdjustments
-0.008
CY2019 us-gaap Effective Income Tax Rate Continuing Operations
EffectiveIncomeTaxRateContinuingOperations
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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
0.005
CY2018 exc Effective Income Tax Rate Reconciliation Qualified Decommissioning Investment Income Percent
EffectiveIncomeTaxRateReconciliationQualifiedDecommissioningInvestmentIncomePercent
-0.019
CY2018 us-gaap Effective Income Tax Rate Reconciliation Tax Credits Investment
EffectiveIncomeTaxRateReconciliationTaxCreditsInvestment
0.012
CY2018 us-gaap Effective Income Tax Rate Reconciliation Deductions Other
EffectiveIncomeTaxRateReconciliationDeductionsOther
0.035
CY2018 us-gaap Effective Income Tax Rate Reconciliation Tax Credits Other
EffectiveIncomeTaxRateReconciliationTaxCreditsOther
0.022
CY2018 us-gaap Effective Income Tax Rate Reconciliation Minority Interest Income Expense
EffectiveIncomeTaxRateReconciliationMinorityInterestIncomeExpense
0.010
CY2018 exc Effective Income Tax Rate Reconciliation Changein Enacted Tax Law Percent
EffectiveIncomeTaxRateReconciliationChangeinEnactedTaxLawPercent
-0.083
CY2018 us-gaap Effective Income Tax Rate Reconciliation Change In Enacted Tax Rate
EffectiveIncomeTaxRateReconciliationChangeInEnactedTaxRate
0.009
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EffectiveIncomeTaxRateReconciliationOtherAdjustments
0.010
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EffectiveIncomeTaxRateContinuingOperations
0.053
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DeferredTaxLiabilitiesPropertyPlantAndEquipment
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DeferredTaxLiabilitiesOtherFiniteLivedAssets
-40000000 USD
CY2020Q4 us-gaap Deferred Tax Liabilities Derivatives
DeferredTaxLiabilitiesDerivatives
41000000 USD
CY2020Q4 exc Deferred Tax Liabilities Deferred Pension And Other Postretirement Benefit Obligation
DeferredTaxLiabilitiesDeferredPensionAndOtherPostretirementBenefitObligation
1559000000 USD
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DeferredTaxLiabilitiesInvestments
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DeferredTaxLiabilitiesDeferredExpenseDeferredFinancingCosts
-169000000 USD
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DeferredTaxLiabilitiesRegulatoryAssetsAndLiabilities
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286000000 USD
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DeferredTaxAssetsTaxCreditCarryforwardsGeneralBusiness
841000000 USD
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DeferredTaxAssetsEquityMethodInvestments
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DeferredTaxLiabilitiesOther
1070000000 USD
CY2020Q4 us-gaap Deferred Income Tax Liabilities
DeferredIncomeTaxLiabilities
12546000000 USD
CY2020Q4 us-gaap Accumulated Deferred Investment Tax Credit
AccumulatedDeferredInvestmentTaxCredit
464000000 USD
CY2020Q4 exc Deferred Income Tax Liabilities And Accumulated Deferred Investment Tax Credit
DeferredIncomeTaxLiabilitiesAndAccumulatedDeferredInvestmentTaxCredit
13010000000 USD
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DeferredTaxLiabilitiesPropertyPlantAndEquipment
13413000000 USD
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DeferredTaxLiabilitiesOtherFiniteLivedAssets
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CY2019Q4 us-gaap Deferred Tax Liabilities Derivatives
DeferredTaxLiabilitiesDerivatives
165000000 USD
CY2019Q4 exc Deferred Tax Liabilities Deferred Pension And Other Postretirement Benefit Obligation
DeferredTaxLiabilitiesDeferredPensionAndOtherPostretirementBenefitObligation
1504000000 USD
CY2019Q4 us-gaap Deferred Tax Liabilities Investments
DeferredTaxLiabilitiesInvestments
503000000 USD
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DeferredTaxLiabilitiesDeferredExpenseDeferredFinancingCosts
-183000000 USD
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DeferredTaxLiabilitiesRegulatoryAssetsAndLiabilities
884000000 USD
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DeferredTaxAssetsOperatingLossCarryforwardsSubjectToExpiration
240000000 USD
CY2019Q4 us-gaap Deferred Tax Assets Tax Credit Carryforwards General Business
DeferredTaxAssetsTaxCreditCarryforwardsGeneralBusiness
892000000 USD
CY2019Q4 us-gaap Deferred Tax Assets Equity Method Investments
DeferredTaxAssetsEquityMethodInvestments
830000000 USD
CY2019Q4 us-gaap Deferred Tax Liabilities Other
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926000000 USD
CY2019Q4 us-gaap Deferred Income Tax Liabilities
DeferredIncomeTaxLiabilities
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CY2019Q4 us-gaap Accumulated Deferred Investment Tax Credit
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668000000 USD
CY2019Q4 exc Deferred Income Tax Liabilities And Accumulated Deferred Investment Tax Credit
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UnrecognizedTaxBenefits
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15000000 USD
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UnrecognizedTaxBenefitsIncreasesResultingFromPriorPeriodTaxPositions
30000000 USD
CY2018 us-gaap Unrecognized Tax Benefits Decreases Resulting From Prior Period Tax Positions
UnrecognizedTaxBenefitsDecreasesResultingFromPriorPeriodTaxPositions
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CY2018 us-gaap Unrecognized Tax Benefits Decreases Resulting From Settlements With Taxing Authorities
UnrecognizedTaxBenefitsDecreasesResultingFromSettlementsWithTaxingAuthorities
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CY2018 us-gaap Unrecognized Tax Benefits Reductions Resulting From Lapse Of Applicable Statute Of Limitations
UnrecognizedTaxBenefitsReductionsResultingFromLapseOfApplicableStatuteOfLimitations
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CY2018Q4 us-gaap Unrecognized Tax Benefits
UnrecognizedTaxBenefits
477000000 USD
CY2019 us-gaap Unrecognized Tax Benefits Period Increase Decrease
UnrecognizedTaxBenefitsPeriodIncreaseDecrease
26000000 USD
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UnrecognizedTaxBenefitsIncreasesResultingFromCurrentPeriodTaxPositions
2000000 USD
CY2019 us-gaap Unrecognized Tax Benefits Increases Resulting From Prior Period Tax Positions
UnrecognizedTaxBenefitsIncreasesResultingFromPriorPeriodTaxPositions
34000000 USD
CY2019 us-gaap Unrecognized Tax Benefits Decreases Resulting From Prior Period Tax Positions
UnrecognizedTaxBenefitsDecreasesResultingFromPriorPeriodTaxPositions
-3000000 USD
CY2019 us-gaap Unrecognized Tax Benefits Decreases Resulting From Settlements With Taxing Authorities
UnrecognizedTaxBenefitsDecreasesResultingFromSettlementsWithTaxingAuthorities
-29000000 USD
CY2019Q4 us-gaap Unrecognized Tax Benefits
UnrecognizedTaxBenefits
507000000 USD
CY2020 us-gaap Unrecognized Tax Benefits Period Increase Decrease
UnrecognizedTaxBenefitsPeriodIncreaseDecrease
6000000 USD
CY2020 us-gaap Unrecognized Tax Benefits Increases Resulting From Current Period Tax Positions
UnrecognizedTaxBenefitsIncreasesResultingFromCurrentPeriodTaxPositions
3000000 USD
CY2020 us-gaap Unrecognized Tax Benefits Increases Resulting From Prior Period Tax Positions
UnrecognizedTaxBenefitsIncreasesResultingFromPriorPeriodTaxPositions
26000000 USD
CY2020 us-gaap Unrecognized Tax Benefits Decreases Resulting From Prior Period Tax Positions
UnrecognizedTaxBenefitsDecreasesResultingFromPriorPeriodTaxPositions
-348000000 USD
CY2020 us-gaap Unrecognized Tax Benefits Decreases Resulting From Settlements With Taxing Authorities
UnrecognizedTaxBenefitsDecreasesResultingFromSettlementsWithTaxingAuthorities
-69000000 USD
CY2020Q4 us-gaap Unrecognized Tax Benefits
UnrecognizedTaxBenefits
125000000 USD
CY2020Q4 us-gaap Decrease In Unrecognized Tax Benefits Is Reasonably Possible
DecreaseInUnrecognizedTaxBenefitsIsReasonablyPossible
411000000 USD
CY2020 us-gaap Tax Adjustments Settlements And Unusual Provisions
TaxAdjustmentsSettlementsAndUnusualProvisions
76000000 USD
CY2020Q4 us-gaap Unrecognized Tax Benefits That Would Impact Effective Tax Rate
UnrecognizedTaxBenefitsThatWouldImpactEffectiveTaxRate
73000000 USD
CY2019Q4 us-gaap Unrecognized Tax Benefits That Would Impact Effective Tax Rate
UnrecognizedTaxBenefitsThatWouldImpactEffectiveTaxRate
462000000 USD
CY2018Q4 us-gaap Unrecognized Tax Benefits That Would Impact Effective Tax Rate
UnrecognizedTaxBenefitsThatWouldImpactEffectiveTaxRate
463000000 USD
CY2020Q4 exc Net Interest Receivable Payable Related To Uncertain Tax Positions
NetInterestReceivablePayableRelatedToUncertainTaxPositions
314000000 USD
CY2019Q4 exc Net Interest Receivable Payable Related To Uncertain Tax Positions
NetInterestReceivablePayableRelatedToUncertainTaxPositions
318000000 USD
CY2019 us-gaap Income Tax Credits And Adjustments
IncomeTaxCreditsAndAdjustments
108000000 USD
CY2019 us-gaap Current Federal State And Local Tax Expense Benefit
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CY2020Q1 us-gaap Increase Decrease In Pension Plan Obligations
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CY2020Q1 us-gaap Increase Decrease In Postretirement Obligations
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CY2020Q1 us-gaap Defined Benefit Plan Accumulated Other Comprehensive Income Net Gains Losses After Tax
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7000000 USD
CY2020Q1 exc Defined Benefit Plan Amounts Recognized In Regulatory Assets Before Tax
DefinedBenefitPlanAmountsRecognizedInRegulatoryAssetsBeforeTax
19000000 USD
CY2020Q1 exc Defined Benefit Plan Amounts Recognized In Regulatory Liabilities Before Tax
DefinedBenefitPlanAmountsRecognizedInRegulatoryLiabilitiesBeforeTax
-10000000 USD
CY2020Q4 exc Qualified Defined Benefit Plan Estimated Future Employer Contributions In Next Fiscal Year
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505000000 USD
CY2020Q4 us-gaap Defined Benefit Plan Expected Future Employer Contributions Next Fiscal Year
DefinedBenefitPlanExpectedFutureEmployerContributionsNextFiscalYear
51000000 USD
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75000000 USD
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2000000 USD
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CY2019Q4 us-gaap Derivative Notional Amount
DerivativeNotionalAmount
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CY2020Q4 exc Net Assets Pending Transactions Excluded
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132000000 USD
CY2019Q4 exc Net Assets Pending Transactions Excluded
NetAssetsPendingTransactionsExcluded
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CY2019 us-gaap Defined Contribution Plan Employer Discretionary Contribution Amount
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CY2018 us-gaap Defined Contribution Plan Employer Discretionary Contribution Amount
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MarginDepositAssets
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CY2019Q4 us-gaap Margin Deposit Assets
MarginDepositAssets
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CY2020Q4 us-gaap Derivative Collateral Right To Reclaim Cash
DerivativeCollateralRightToReclaimCash
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CY2019Q4 us-gaap Derivative Collateral Right To Reclaim Cash
DerivativeCollateralRightToReclaimCash
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CY2020Q4 us-gaap Derivative Collateral Right To Reclaim Securities
DerivativeCollateralRightToReclaimSecurities
226000000 USD
CY2019Q4 us-gaap Derivative Collateral Right To Reclaim Securities
DerivativeCollateralRightToReclaimSecurities
264000000 USD
CY2020Q4 us-gaap Derivative Collateral Obligation To Return Cash
DerivativeCollateralObligationToReturnCash
110000000 USD
CY2019Q4 us-gaap Derivative Collateral Obligation To Return Cash
DerivativeCollateralObligationToReturnCash
103000000 USD
CY2020Q4 us-gaap Derivative Collateral Obligation To Return Securities
DerivativeCollateralObligationToReturnSecurities
40000000 USD
CY2019Q4 us-gaap Derivative Collateral Obligation To Return Securities
DerivativeCollateralObligationToReturnSecurities
112000000 USD
CY2020Q4 exc Incremental Collateral For Loss Of Investment Grade Credit Rating
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CY2019Q4 exc Incremental Collateral For Loss Of Investment Grade Credit Rating
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CY2019Q4 us-gaap Line Of Credit Facility Current Borrowing Capacity
LineOfCreditFacilityCurrentBorrowingCapacity
142000000 USD
CY2020Q4 us-gaap Line Of Credit
LineOfCredit
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CY2020Q4 us-gaap Letters Of Credit Outstanding Amount
LettersOfCreditOutstandingAmount
1230000000 USD
CY2020Q4 us-gaap Line Of Credit Facility Remaining Borrowing Capacity
LineOfCreditFacilityRemainingBorrowingCapacity
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CY2020Q4 us-gaap Line Of Credit Facility Current Borrowing Capacity
LineOfCreditFacilityCurrentBorrowingCapacity
135000000 USD
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DebtInstrumentCarryingAmount
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CY2019Q4 us-gaap Debt Instrument Carrying Amount
DebtInstrumentCarryingAmount
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CY2020Q4 us-gaap Debt Instrument Unamortized Discount Premium Net
DebtInstrumentUnamortizedDiscountPremiumNet
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CY2019Q4 us-gaap Debt Instrument Unamortized Discount Premium Net
DebtInstrumentUnamortizedDiscountPremiumNet
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CY2020Q4 us-gaap Unamortized Debt Issuance Expense
UnamortizedDebtIssuanceExpense
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CY2019Q4 us-gaap Unamortized Debt Issuance Expense
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CY2019Q4 us-gaap Debt Instrument Fair Value
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CY2019Q4 us-gaap Long Term Debt Current
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CY2020Q4 us-gaap Long Term Debt Noncurrent
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CY2019Q4 us-gaap Long Term Debt Noncurrent
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31329000000 USD
CY2020Q4 us-gaap Long Term Debt Maturities Repayments Of Principal In Next Twelve Months
LongTermDebtMaturitiesRepaymentsOfPrincipalInNextTwelveMonths
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CY2020Q4 us-gaap Long Term Debt Maturities Repayments Of Principal In Year Two
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CY2020Q4 us-gaap Long Term Debt Maturities Repayments Of Principal In Year Three
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