Changes in Accumulated Other Comprehensive Income (Exelon)

9 Months Ended

Sep. 30, 2023

Changes in Accumulated Other Comprehensive Income [Abstract]

Changes in Accumulated Other Comprehensive Income

Changes in Accumulated Other Comprehensive Income (Loss) (Exelon)

The following tables present changes in Exelon's AOCI, net of tax, by component:

Nine Months Ended September 30, 2023	Cash Flow Hedges		Pension and Non-Pension Postretirement Benefit Plan Items(a)		Foreign Currency Items		Total
Balance at December 31, 2022	$	2	$	(640)	$	—	$	(638)
OCI before reclassifications	6		(10)		—		(4)
Amounts reclassified from AOCI	—		3		—		3
Net current-period OCI	6		(7)		—		(1)
Balance at March 31, 2023	8		(647)		—		(639)
OCI before reclassifications	9		(3)		—		6
Amounts reclassified from AOCI	—		3		—		3
Net current-period OCI	9		—		—		9
Balance at June 30, 2023	17		(647)		—		(630)
OCI before reclassifications	22		(3)		—		19
Amounts reclassified from AOCI	(1)		16		—		15
Net current-period OCI	21		13		—		34
Balance at September 30, 2023	$	38	$	(634)	$	—	$	(596)

Nine Months Ended September 30, 2022	Cash Flow Hedges		Pension and Non-Pension Postretirement Benefit Plan Items(a)		Foreign Currency Items		Total
Balance at December 31, 2021	$	(6)	$	(2,721)	$	(23)	$	(2,750)
Separation of Constellation	6		1,994		23		2,023
Amounts reclassified from AOCI	—		14		—		14
Net current-period OCI	—		14		—		14
Balance at March 31, 2022	—		(713)		—		(713)
OCI before reclassifications	—		2		—		2
Amounts reclassified from AOCI	—		10		—		10
Net current-period OCI	—		12		—		12
Balance at June 30, 2022	—		(701)		—		(701)
Amounts reclassified from AOCI	—		9		—		9
Net current-period OCI	—		9		—		9
Balance at September 30, 2022	$	—	$	(692)	$	—	$	(692)

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(a)This AOCI component is included in the computation of net periodic pension and OPEB cost. Additionally, as of February 1, 2022, in connection with the separation, Exelon's pension and OPEB plans were remeasured. See Note 14 — Retirement Benefits of the 2022 Form 10-K and Note 8 — Retirement Benefits for additional information. See Exelon's Statements of Operations and Comprehensive Income for individual components of AOCI.

The following table presents Income tax benefit (expense) allocated to each component of Exelon's Other comprehensive income (loss):

	Three Months Ended September 30,				Nine Months Ended September 30,
	2023		2022		2023		2022
Pension and non-pension postretirement benefit plans:
Actuarial losses reclassified to periodic benefit cost	$	(5)	$	(3)	$	(7)	$	(11)
Pension and non-pension postretirement benefit plans valuation adjustments	1		—		5		—
Unrealized gains on cash flow hedges	(7)		—		(11)		—