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Derivative Financial Instruments - Narrative (Details)
MWh in Millions, $ in Millions

1 Months Ended

9 Months Ended

Jun. 30, 2012

MWh

Sep. 30, 2022

USD ($)

Oct. 31, 2022

USD ($)

Dec. 31, 2021

USD ($)

Derivative [Line Items]

Other

$ 1,313

$ 766

Derivative Financial Instruments (All Registrants)

The Registrants use derivative instruments to manage commodity price risk and interest rate risk related to ongoing business operations.

Authoritative guidance requires that derivative instruments be recognized as either assets or liabilities at fair value, with changes in fair value of the derivative recognized in earnings immediately. Other accounting treatments are available through special election and designation, provided they meet specific, restrictive criteria both at the time of designation and on an ongoing basis. These alternative permissible accounting treatments include NPNS, cash flow hedges, and fair value hedges. At ComEd, derivative economic hedges related to commodities are recorded at fair value and offset by a corresponding regulatory asset or liability. For all NPNS derivative instruments, accounts receivable or accounts payable are recorded when derivatives settle and revenue or expense is recognized in earnings as the underlying physical commodity is sold or consumed.

ComEd’s use of cash collateral is generally unrestricted unless ComEd is downgraded below investment grade. Cash collateral held by PECO, BGE, Pepco, DPL, and ACE must be deposited in an unaffiliated major U.S. commercial bank or foreign bank with a U.S. branch office that meets certain qualifications.

Commodity Price Risk

The Registrants employ established policies and procedures to manage their risks associated with market fluctuations in commodity prices by entering into physical and financial derivative contracts, which are either determined to be non-derivative or classified as economic hedges. The Utility Registrants procure electric and natural gas supply through a competitive procurement process approved by each of the respective state utility commissions. The Utility Registrants’ hedging programs are intended to reduce exposure to energy and natural

gas price volatility and have no direct earnings impact as the costs are fully recovered from customers through regulatory-approved recovery mechanisms. The following table provides a summary of the Utility Registrants’ primary derivative hedging instruments, listed by commodity and accounting treatment.


Registrant	Commodity	Accounting Treatment	Hedging Instrument
ComEd	Electricity	NPNS	Fixed price contracts based on all requirements in the IPA procurement plans.
	Electricity	Changes in fair value of economic hedge recorded to an offsetting regulatory asset or liability(a)	20-year floating-to-fixed energy swap contracts beginning June 2012 based on the renewable energy resource procurement requirements in the Illinois Settlement Legislation of approximately 1.3 million MWhs per year.
PECO	Electricity	NPNS	Fixed price contracts for default supply requirements through full requirements contracts.
	Gas	NPNS	Fixed price contracts to cover about 10% of planned natural gas purchases in support of projected firm sales.
BGE	Electricity	NPNS	Fixed price contracts for all SOS requirements through full requirements contracts.
	Gas	NPNS	Fixed price contracts for between 10-20% of forecasted system supply requirements for flowing (i.e., non-storage) gas for the November through March period.
Pepco	Electricity	NPNS	Fixed price contracts for all SOS requirements through full requirements contracts.
DPL	Electricity	NPNS	Fixed price contracts for all SOS requirements through full requirements contracts.
	Gas	NPNS	Fixed and index priced contracts through full requirements contracts.
		Changes in fair value of economic hedge recorded to an offsetting regulatory asset or liability(b)	Exchange traded future contracts for up to 50% of estimated monthly purchase requirements each month, including purchases for storage injections.
ACE	Electricity	NPNS	Fixed price contracts for all BGS requirements through full requirements contracts.

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(a)See Note 3 — Regulatory Matters of the 2021 Recast Form 10-K for additional information.

(b)The fair value of the DPL economic hedge is not material as of September 30, 2022 and December 31, 2021.

The fair value of derivative economic hedges is presented in Other current assets and current and noncurrent Mark-to-market derivative liabilities in Exelon's and ComEd's Consolidated Balance Sheets. The Mark-to-market derivative assets included in Other current assets in Exelon’s and ComEd’s Consolidated Balance Sheets were $24 million and none as of September 30, 2022 and December 31, 2021, respectively.

Cash Flow Hedges (Interest Rate Risk) (Exelon)

Exelon uses a combination of fixed-rate and variable-rate debt to manage interest rate exposure. In addition, Exelon may utilize interest rate derivatives to lock in rate levels in anticipation of future financings. In October 2022, Exelon entered into $840 million of notional amount floating-to-fixed forward starting interest rate swaps to manage a portion of interest rate exposure associated with anticipated debt issuances. The swaps are designated as cash flow hedges. Changes in fair value each period will initially be recorded in AOCI starting in the fourth quarter of 2022 and recognized in earnings as interest expense is accrued on the anticipated debt issuance.

Economic Hedges (Interest Rate Risk) (Exelon)

Exelon may use derivative instruments to mitigate exposure to fluctuations in interest rates but for which the fair value or cash flow hedge elections are not made. In October 2022, Exelon entered into $1,850 million of notional amount floating-to-fixed interest rate cap swaps to manage a portion of interest rate exposure in connection with borrowings. The swaps are not designated as cash flow hedges. As economic hedges, changes in fair value each period will be recognized in earnings starting in the fourth quarter of 2022.

Credit Risk

The Registrants would be exposed to credit-related losses in the event of non-performance by counterparties on executed derivative instruments. The credit exposure of derivative contracts, before collateral, is represented by the fair value of contracts at the reporting date. The Utility Registrants have contracts to procure electric and natural gas supply that provide suppliers with a certain amount of unsecured credit. If the exposure on the supply contract exceeds the amount of unsecured credit, the suppliers may be required to post collateral. The net credit exposure is mitigated primarily by the ability to recover procurement costs through customer rates. As of September 30, 2022, the amount of cash collateral held with external counterparties by Exelon, ComEd, BGE, PHI, Pepco, DPL, and ACE was $505 million, $95 million, $129 million, $279 million, $48 million, $157 million, and $74 million, respectively, which is recorded in Other current liabilities in Exelon's, ComEd's, BGE's, PHI's, Pepco's, DPL's, and ACE's Consolidated Balance Sheets. The amount of cash collateral received from external counterparties increased as of September 30, 2022 due to rising energy prices. The amount for PECO was not material as of September 30, 2022. As of December 31, 2021, the amounts for ComEd and DPL were $41 million and $43 million, respectively. The amounts for Exelon, PECO, BGE, PHI, Pepco, and ACE were not material as of December 31, 2021.

The Utility Registrants’ electric supply procurement contracts do not contain provisions that would require them to post collateral. PECO’s, BGE’s, and DPL’s natural gas procurement contracts contain provisions that could require PECO, BGE, and DPL to post collateral in the form of cash or credit support, which vary by contract and counterparty, with thresholds contingent upon PECO’s, BGE's, and DPL’s credit rating. As of September 30, 2022, PECO, BGE, and DPL were not required to post collateral for any of these agreements. If PECO, BGE, or DPL lost their investment grade credit rating as of September 30, 2022, they could have been required to post collateral to their counterparties of $43 million, $79 million, and $16 million, respectively.

Fair Value, Recurring [Member]

Derivative [Line Items]

Derivative Asset

$ 24

Commonwealth Edison Co [Member]

Derivative [Line Items]

Long-term Purchase Commitment, Minimum Energy Volume Required | MWh

1.3

Other

191

133

Commonwealth Edison Co [Member] | Fair Value, Recurring [Member]