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Supplemental Financial Information (Tables)
 9 Months Ended
Sep. 30, 2021
Supplemental Financial Information [Abstract]  
Components of Operating Lease Income The following tables provide additional information about material items recorded in the Registrants' Consolidated Statements of Operations and Comprehensive Income.
Operating revenues
ExelonGenerationPHIDPL
Three Months Ended September 30, 2021
Operating lease income$30 $29 $1 $1 
Variable lease income71 71 — — 
Three Months Ended September 30, 2020
Operating lease income$30 $28 $1 $1 
Variable lease income76 76 — — 
Nine Months Ended September 30, 2021
Operating lease income$47 $44 $3 $3 
Variable lease income208 207 1 1 
Nine Months Ended September 30, 2020
Operating lease income$48 $43 $3 $3 
Variable lease income225 224 1 1 
Taxes Other Than Income Taxes
Taxes other than income taxes
ExelonGenerationComEdPECOBGEPHIPepcoDPLACE
Three Months Ended September 30, 2021
Utility taxes(a)
$242 $27 $67 $41 $21 $86 $80 $6 $— 
Property165 66 13 5 46 34 23 10 1 
Payroll57 26 7 4 5 7 2 1 1 
Three Months Ended September 30, 2020
Utility taxes(a)
$237 $26 $66 $41 $21 $83 $77 $5 $1 
Property152 66 7 4 42 32 21 10 1 
Payroll59 29 7 4 4 6 2 1 1 
Nine Months Ended September 30, 2021
Utility taxes(a)
$665 $73 $188 $107 $66 $231 $212 $17 $2 
Property470 199 30 13 131 97 65 30 2 
Payroll180 83 20 12 14 21 5 4 2 
Nine Months Ended September 30, 2020
Utility taxes(a)
$651 $75 $181 $102 $65 $228 $210 $16 $2 
Property449 199 23 12 121 94 63 29 2 
Payroll183 88 21 12 13 21 6 4 3 
__________
(a)Generation’s utility tax represents gross receipts tax related to its retail operations, and the Utility Registrants' utility taxes represents municipal and state utility taxes and gross receipts taxes related to their operating revenues. The offsetting collection of utility taxes from customers is recorded in revenues in the Registrants’ Consolidated Statements of Operations and Comprehensive Income.
Schedule of Other Nonoperating Income, by Component
Other, Net
ExelonGenerationComEdPECOBGE PHIPepcoDPLACE
Three Months Ended September 30, 2021
Decommissioning-related activities:
Net realized income on NDT funds(a)
Regulatory Agreement Units$263 $263 $— $— $— $— $— $— $— 
Non-Regulatory Agreement Units102 102 — — — — — — — 
Net unrealized losses on NDT funds
Regulatory Agreement Units(195)(195)— — — — — — — 
Non-Regulatory Agreement Units(88)(88)— — — — — — — 
Regulatory offset to NDT fund-related activities(b)
(38)(38)— — — — — — — 
Decommissioning-related activities44 44 — — — — — — — 
AFUDC — Equity36 — 10 7 7 12 9 2 1 
Non-service net periodic benefit cost19 — — — — — — — — 
Net unrealized losses from equity investments(c)
(179)(179)— — — — — — — 
Three Months Ended September 30, 2020
Decommissioning-related activities:
Net realized income on NDT funds(a)
Regulatory Agreement Units$50 $50 $— $— $— $— $— $— $— 
Non-Regulatory Agreement Units23 23 — — — — — — — 
Net unrealized gains on NDT funds
Regulatory Agreement Units398 398 — — — — — — — 
Non-Regulatory Agreement Units254 254 — — — — — — — 
Regulatory offset to NDT fund-related activities(b)
(359)(359)— — — — — — — 
Decommissioning-related activities366 366 — — — — — — — 
AFUDC — Equity27 — 7 5 6 9 7 1 1 
Non-service net periodic benefit cost15 — — — — — — — — 
Other, net
ExelonGenerationComEdPECOBGEPHIPepcoDPLACE
Nine Months Ended September 30, 2021
Decommissioning-related activities:
Net realized income on NDT funds(a)
Regulatory Agreement Units$698 $698 $— $— $— $— $— $— $— 
Non-Regulatory Agreement Units392 392 — — — — — — — 
Net unrealized gains on NDT funds
Regulatory Agreement Units84 84 — — — — — — — 
Non-Regulatory Agreement Units38 38 — — — — — — — 
Regulatory offset to NDT fund-related activities(b)
(607)(607)— — — — — — — 
Decommissioning-related activities605 605 — — — — — — — 
AFUDC — Equity99 — 23 19 21 36 30 4 2 
Non-service net periodic benefit cost64 — — — — — — — — 
Net unrealized losses from equity investments(c)
(83)(83)— — — — — — — 
Nine Months Ended September 30, 2020
Decommissioning-related activities:
Net realized income on NDT funds(a)
Regulatory Agreement Units$127 $127 $— $— $— $— $— $— $— 
Non-Regulatory Agreement Units127 127 — — — — — — — 
Net unrealized gains on NDT funds
Regulatory Agreement Units111 111 — — — — — — — 
Non-Regulatory Agreement Units1 1 — — — — — — — 
Regulatory offset to NDT fund-related activities(b)
(192)(192)— — — — — — — 
Decommissioning-related activities174 174 — — — — — — — 
AFUDC — Equity76 — 22 12 16 26 20 3 3 
Non-service net periodic benefit cost38 — — — — — — — — 
__________
(a)Realized income includes interest, dividends and realized gains and losses on sales of NDT fund investments.
(b)Includes the elimination of decommissioning-related activities for the Regulatory Agreement Units except for decommissioning-related impacts that were not offset for the Byron units starting in the second quarter of 2021, including the elimination of income taxes related to all NDT fund activity for those units. With Generation's September 15, 2021 reversal of the previous decision to retire Byron, Generation resumed contractual offset for Byron as of that date. See Note 10 — Asset Retirement Obligations of the Exelon 2020 Form 10-K for additional information regarding the accounting for nuclear decommissioning and Note 8 — Nuclear Decommissioning for additional information on the contractual offset suspension for the Byron units.
(c)Net unrealized losses from equity investments that became publicly traded entities in the fourth quarter of 2020 and the first half of 2021.
Cash Flow Supplemental Disclosures The following tables provide additional information about material items recorded in the Registrants' Consolidated Statements of Cash Flows.
Depreciation, amortization, and accretion
ExelonGenerationComEdPECOBGEPHIPepcoDPLACE
Nine Months Ended September 30, 2021
Property, plant, and equipment(a)
$4,505 $2,698 $721 $249 $324 $467 $204 $126 $115 
Amortization of regulatory assets(a)
439 — 172 10 110 147 98 31 18 
Amortization of intangible assets, net(a)
44 37 — — — — — — — 
Amortization of energy contract assets and liabilities(b)
23 23 — — — — — — — 
Nuclear fuel(c)
810 810 — — — — — — — 
ARO accretion(d)
383 383 — — — — — — — 
Total depreciation, amortization, and accretion$6,204 $3,951 $893 $259 $434 $614 $302 $157 $133 
Nine Months Ended September 30, 2020
Property, plant, and equipment(a)
$2,831 $1,121 $689 $238 $293 $436 $191 $116 $104 
Amortization of regulatory assets(a)
434 — 152 21 112 149 91 27 30 
Amortization of intangible assets, net(a)
47 40 — — — — — — — 
Amortization of energy contract assets and liabilities(b)
24 22 — — — — — — — 
Nuclear fuel(c)
708 708 — — — — — — — 
ARO accretion(d)
375 375 — — — — — — — 
Total depreciation, amortization, and accretion$4,419 $2,266 $841 $259 $405 $585 $282 $143 $134 
__________
(a)Included in Depreciation and amortization in the Registrants' Consolidated Statements of Operations and Comprehensive Income.
(b)Included in Operating revenues or Purchased power and fuel expense in the Registrants’ Consolidated Statements of Operations and Comprehensive Income.
(c)Included in Purchased power and fuel expense in the Registrants’ Consolidated Statements of Operations and Comprehensive Income.
(d)Included in Operating and maintenance expense in the Registrants’ Consolidated Statements of Operations and Comprehensive Income.
Other non-cash operating activities
ExelonGenerationComEdPECOBGEPHIPepcoDPLACE
Nine Months Ended September 30, 2021
Pension and non-pension postretirement benefit costs$304 $92 $97 $5 $45 $36 $5 $2 $8 
Allowance for credit losses155 59 34 36 7 18 9 3 6 
Other decommissioning-related activity(a)
(810)(810)— — — — — — — 
Energy-related options(b)
45 45 — — — — — — — 
True-up adjustments to decoupling mechanisms and formula rates(c)
(129)— (32)(20)17 (94)(54)(17)(23)
Severance costs(67)(75)1 — — 1 — — — 
Long-term incentive plan94 — — — — — — — — 
Amortization of operating ROU asset146 98 2 — 22 21 5 7 3 
AFUDC — Equity(99)— (23)(19)(21)(36)(30)(4)(2)
Nine Months Ended September 30, 2020
Pension and non-pension postretirement benefit costs$310 $89 $85 $4 $46 $52 $11 $6 $10 
Allowance for credit losses130 16 23 38 12 41 24 15 2 
Other decommissioning-related activity(a)
(301)(301)— — — — — — — 
Energy-related options(b)
79 79 — — — — — — — 
True-up adjustments to decoupling mechanisms and formula rates(c)
66 — 51 (10)10 15 (20)15 20 
Severance costs96 88 1 — — — — — — 
Provision for excess and obsolete inventory119 118 1 1 — (1)— (1)— 
Long-term incentive plan(8)— — — — — — — — 
Amortization of operating ROU asset185 135 1 — 23 21 5 6 2 
Deferred Prosecution Agreement payments(d)
200 — 200 — — — — — — 
AFUDC — Equity(76)— (22)(12)(16)(26)(20)(3)(3)
__________
(a)Includes the elimination of decommissioning-related activities for the Regulatory Agreement Units except for decommissioning-related impacts that were not offset for the Byron units starting in the second quarter of 2021, including the elimination of operating revenues, ARO accretion, ARC amortization, investment income, and income taxes related to all NDT fund activity for these units. With Generation's September 15, 2021 reversal of the previous decision to retire Byron, Generation resumed contractual offset for Byron as of that date. See Note 10 — Asset Retirement Obligations of the Exelon 2020 Form 10-K for additional information regarding the accounting for nuclear decommissioning and Note 8 — Nuclear Decommissioning for additional information on the contractual offset suspension for the Byron units.
(b)Includes option premiums reclassified to realized at the settlement of the underlying contracts and recorded to results of operations.
(c)For ComEd, reflects the true-up adjustments in regulatory assets and liabilities associated with its distribution, energy efficiency, distributed generation, and transmission formula rates. For BGE, Pepco, DPL, and ACE, reflects the change in regulatory assets and liabilities associated with their decoupling mechanisms and transmission formula rates. For PECO, reflects the change in regulatory assets and liabilities associated with its transmission formula rates. See Note 3 — Regulatory Matters for additional information.
(d)See Note 15 — Commitments and Contingencies for additional information related to the Deferred Prosecution Agreement.
The following tables provide a reconciliation of cash, cash equivalents, and restricted cash reported within the Registrants’ Consolidated Balance Sheets that sum to the total of the same amounts in their Consolidated Statements of Cash Flows.
ExelonGenerationComEdPECOBGEPHIPepcoDPLACE
September 30, 2021
Cash and cash equivalents$2,957 $1,957 $241 $344 $225 $82 $19 $13 $16 
Restricted cash and cash equivalents473 62 276 8 27 71 41 26 5 
Restricted cash included in other long-term assets54 — 44 — — 9 — — 9 
Total cash, restricted cash, and cash equivalents$3,484 $2,019 $561 $352 $252 $162 $60 $39 $30 
December 31, 2020
Cash and cash equivalents$663 $226 $83 $19 $144 $111 $30 $15 $17 
Restricted cash and cash equivalents438 89 279 7 1 39 35 — 3 
Restricted cash included in other long-term assets53 — 43 — — 10 — — 10 
Cash, restricted cash, and cash equivalents - Held for Sale12 12 — — — — — — — 
Total cash, restricted cash, and cash equivalents$1,166 $327 $405 $26 $145 $160 $65 $15 $30 
September 30, 2020
Cash and cash equivalents$1,858 $623 $76 $242 $326 $196 $125 $26 $13 
Restricted cash and cash equivalents485 100 305 7 1 38 33 — 4 
Restricted cash included in other long-term assets137 — 127 — — 10 — — 10 
Total cash, restricted cash, and cash equivalents$2,480 $723 $508 $249 $327 $244 $158 $26 $27 
December 31, 2019
Cash and cash equivalents$587 $303 $90 $21 $24 $131 $30 $13 $12 
Restricted cash and cash equivalents358 146 150 6 1 36 33 — 2 
Restricted cash included in other long-term assets177 — 163 — — 14 — — 14 
Total cash, restricted cash, and cash equivalents$1,122 $449 $403 $27 $25 $181 $63 $13 $28 
For additional information on restricted cash see Note 1 — Significant Accounting Policies of the Exelon 2020 Form 10-K.
Supplemental Balance Sheet Disclosures The following tables provide additional information about material items recorded in the Registrants' Consolidated Balance Sheets.
Accrued expenses
ExelonGenerationComEdPECOBGEPHIPepcoDPLACE
September 30, 2021
Compensation-related accruals(a)
$894 $318 $148 $66 $72 $108 $34 $21 $16 
Taxes accrued508 222 80 61 90 98 67 16 7 
Interest accrued415 77 65 36 39 75 37 20 15 
December 31, 2020
Compensation-related accruals(a)
$1,069 $426 $170 $73 $84 $109 $36 $18 $17 
Taxes accrued527 229 94 16 73 117 90 18 12 
Interest accrued331 44 109 37 46 51 26 7 12 
__________
(a)Primarily includes accrued payroll, bonuses and other incentives, vacation, and benefits.