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ORGANIZATION AND BASIS OF PRESENTATION (Tables)
 12 Months Ended
Dec. 31, 2020
Organization, Consolidation and Presentation of Financial Statements [Abstract]  
Accounts receivable, allowance for credit loss
Activity in the allowance for uncollectible accounts on receivables for the years ended December 31, 2020, 2019 and 2018 are as follows:
(In millions)202020192018
Customer Receivables
Beginning of year balance $46 $50 $49 
Charged to income (1)
174 81 77 
Charged to other accounts (2)
46 47 60 
Write-offs (102)(132)(136)
End of year balance $164 $46 $50 
Other Receivables
Beginning of year balance$21 $2 $1 
Charged to income 727 13 
Charged to other accounts (2)
101 — 
Write-offs(12)(9)(12)
End of year balance$26 $21 $2 
Affiliated Companies Receivables (3)
Beginning of year balance$1,063 $920 $— 
Charged to income — 143 920 
Charged to other accounts (2)
— — — 
Write-offs (1,063)— — 
End of year balance$— $1,063 $920 
(1) Customer receivable amounts charged to income for the years ended December 31, 2020, 2019 and 2018 include approximately $103 million, $25 million, and $24 million respectively, deferred for future recovery.
(2) Represents recoveries and reinstatements of accounts previously written off for uncollectible accounts.
(3) Amounts relate to the FES Debtors and are included in discontinued operations. Write-off of $1.1 billion in 2020 was recognized upon their emergence in February 2020. See Note 3, "Discontinued Operations" for additional information.
Receivables from customers Billed and unbilled customer receivables as of December 31, 2020 and 2019, net of allowance for uncollectible accounts, are included below.
Customer ReceivablesDecember 31, 2020December 31, 2019
 (In millions)
Billed$636 $564 
Unbilled567 527 
Total$1,203 $1,091 
Regulatory assets on the Balance Sheets
The following table provides information about the composition of net regulatory assets and liabilities as of December 31, 2020 and December 31, 2019, and the changes during the year ended December 31, 2020:
Net Regulatory Assets (Liabilities) by SourceDecember 31,
2020		December 31,
2019		Change
 (In millions)
Customer payables for future income taxes$(2,369)$(2,605)$236 
Nuclear decommissioning and spent fuel disposal costs(102)(197)95 
Asset removal costs(721)(756)35 
Deferred transmission costs316 298 18 
Deferred generation costs104 214 (110)
Deferred distribution costs136 155 (19)
Contract valuations41 51 (10)
Storm-related costs748 551 197 
Uncollectible and COVID-19 related costs97 3 94 
Other6 25 (19)
Net Regulatory Liabilities included on the Consolidated Balance Sheets$(1,744)$(2,261)$517 

The following table provides information about the composition of net regulatory assets that do not earn a current return as of December 31, 2020 and 2019, of which approximately $195 million and $228 million, respectively, are currently being recovered through rates over varying periods, through 2068, depending on the nature of the deferral and the jurisdiction:
Regulatory Assets by Source Not Earning a Current ReturnDecember 31,
2020		December 31,
2019		Change
(in millions)
Deferred transmission costs$29 $27 $2 
Deferred generation costs5 15 (10)
Storm-related costs654 471 183 
COVID-19 related costs66 — 66 
Other35 32 3 
Regulatory Assets Not Earning a Current Return$789 $545 $244 
Reconciliation of basic and diluted earnings per share
Year Ended December 31,
Reconciliation of Basic and Diluted EPS of Common Stock202020192018
(In millions, except per share amounts)
EPS of Common Stock
Income from continuing operations$1,003 $904 $1,022 
Less: Preferred dividends — (3)(71)
Less: Amortization of beneficial conversion feature— — (296)
Less: Undistributed earnings allocated to preferred stockholders(1)
N/A(1)— 
Income from continuing operations available to common stockholders1,003 900 655 
Discontinued operations, net of tax76 8 326 
Less: Undistributed earnings allocated to preferred stockholders (1)
N/A— — 
Income from discontinued operations available to common stockholders76 8 326 
Income attributable to common stockholders, basic$1,079 $908 $981 
Income allocated to preferred stockholders, preferred dilutive (2)
N/A4 N/A
Income attributable to common stockholders, dilutive$1,079 $912 $981 
Share Count information:
Weighted average number of basic shares outstanding542 535 492 
Assumed exercise of dilutive stock options and awards1 3 2 
Assumed conversion of preferred stock — 4 — 
Weighted average number of diluted shares outstanding543 542 494 
Income attributable to common stockholders, per common share:
Income from continuing operations, basic$1.85 $1.69 $1.33 
Discontinued operations, basic 0.14 0.01 0.66 
Income attributable to common stockholders, basic $1.99 $1.70 $1.99 
Income from continuing operations, diluted$1.85 $1.67 $1.33 
Discontinued operations, diluted0.14 0.01 0.66 
Income attributable to common stockholders, diluted
$1.99 $1.68 $1.99 
(1)Undistributed earnings were not allocated to participating securities for the year ended December 31, 2018, as income from continuing operations less dividends declared (common and preferred) and deemed dividends were a net loss. Undistributed earning allocated to participating securities for the years ended December 31, 2019 and 2020 were immaterial.
(2)The shares of common stock issuable upon conversion of the preferred shares (26 million shares) were not included for 2018 as their inclusion would be anti-dilutive to basic EPS from continuing operations. Amounts allocated to preferred stockholders of $4 million for the year ended December 31, 2019 are included within Income from continuing operations available to common stockholders for diluted earnings.
Property, plant and equipment balances Property, plant and equipment balances by segment as of December 31, 2020 and 2019, were as follows:
December 31, 2020
Property, Plant and Equipment
In Service(1)
Accum. Depr.Net PlantCWIPTotal
(In millions)
Regulated Distribution$29,775 $(8,800)$20,975 $841 $21,816 
Regulated Transmission12,912 (2,609)10,303 671 10,974 
Corporate/Other1,039 (556)483 66 549 
Total$43,726 $(11,965)$31,761 $1,578 $33,339 
December 31, 2019
Property, Plant and Equipment
In Service(1)
Accum. Depr.Net PlantCWIPTotal
(In millions)
Regulated Distribution$28,735 $(8,540)$20,195 $744 $20,939 
Regulated Transmission12,023 (2,383)9,640 526 10,166 
Corporate/Other1,009 (504)505 40 545 
Total$41,767 $(11,427)$30,340 $1,310 $31,650 
(1) Includes finance leases of $153 million and $163 million as of December 31, 2020 and 2019, respectively.
Summary of changes in goodwill The following table presents goodwill by reporting unit as of December 31, 2020:
(In millions)Regulated DistributionRegulated TransmissionConsolidated
Goodwill$5,004 $614 $5,618