Property, Plant and Equipment (Tables)

12 Months Ended

Dec. 31, 2021

Property, Plant and Equipment [Abstract]

Property, Plant and Equipment

The following tables present a summary of property, plant, and equipment by asset category as of December 31, 2021 and 2020:

Asset Category	Exelon(a)		ComEd		PECO		BGE		PHI		Pepco		DPL		ACE
December 31, 2021
Electric—transmission and distribution	$	64,771	$	31,077	$	10,076	$	9,352	$	16,062	$	10,798	$	4,957	$	4,882
Electric—generation	29,912		—		—		—		—		—		—		—
Gas—transportation and distribution	7,429		—		3,339		3,712		646		—		806		—
Common—electric and gas	2,335		—		1,005		1,224		201		—		180		—
Nuclear fuel(b)	5,166		—		—		—		—		—		—		—
Construction work in progress	4,097		918		620		554		1,590		1,118		229		242
Other property, plant, and equipment(c)	827		99		41		34		107		63		23		25
Total property, plant, and equipment	114,537		32,094		15,081		14,876		18,606		11,979		6,195		5,149
Less: accumulated depreciation(d)	30,318		6,099		3,964		4,299		2,108		3,875		1,635		1,420
Property, plant, and equipment, net	$	84,219	$	25,995	$	11,117	$	10,577	$	16,498	$	8,104	$	4,560	$	3,729
December 31, 2020
Electric—transmission and distribution	$	60,946	$	29,371	$	9,462	$	8,797	$	15,137	$	10,264	$	4,730	$	4,568
Electric—generation	29,725		—		—		—		—		—		—		—
Gas—transportation and distribution	6,733		—		3,098		3,315		591		—		751		—
Common—electric and gas	2,170		—		956		1,138		178		—		180		—
Nuclear fuel(b)	5,399		—		—		—		—		—		—		—
Construction work in progress	3,576		799		474		627		1,174		824		163		182
Other property, plant and equipment(c)	762		59		34		29		108		65		23		28
Total property, plant and equipment	109,311		30,229		14,024		13,906		17,188		11,153		5,847		4,778
Less: accumulated depreciation(d)	26,727		5,672		3,843		4,034		1,811		3,697		1,533		1,303
Property, plant, and equipment, net	$	82,584	$	24,557	$	10,181	$	9,872	$	15,377	$	7,456	$	4,314	$	3,475

__________

(a)As of December 31, 2021, includes $19,612 million of Property, plant, and equipment, net related to Generation.

(b)Includes nuclear fuel that is in the fabrication and installation phase of $859 million and $939 million as of December 31, 2021 and 2020, respectively.

(c)Primarily composed of land and non-utility property.

(d)At Exelon, includes accumulated amortization of nuclear fuel in the reactor core of $2,765 million and $2,774 million as of December 31, 2021 and 2020, respectively.

The following table presents the average service life for each asset category in number of years:

	Average Service Life (years)
Asset Category	Exelon	ComEd	PECO	BGE	PHI	Pepco	DPL	ACE
Electric - transmission and distribution	5-80	5-80	5-70	5-80	5-75	5-75	5-70	5-65
Electric - generation	1-52	N/A	N/A	N/A	N/A	N/A	N/A	N/A
Gas - transportation and distribution	5-80	N/A	5-70	5-80	5-75	N/A	5-75	N/A
Common - electric and gas	4-75	N/A	5-55	4-50	5-75	N/A	5-75	N/A
Nuclear fuel	1-8	N/A	N/A	N/A	N/A	N/A	N/A	N/A
Other property, plant, and equipment	1-61	32-50	50	20-50	3-50	33-50	8-50	13-15

Property Plant And Equipment Average Service Life Percentage By Asset Category Table

The following table presents the annual depreciation rates for each asset category. Nuclear fuel amortization is charged to fuel expense using the unit-of-production method and not included in the below table.

	Annual Depreciation Rates
	Exelon		ComEd		PECO		BGE		PHI		Pepco		DPL		ACE
December 31, 2021
Electric—transmission and distribution	2.81	%	2.94	%	2.28	%	2.80	%	2.87	%	2.56	%	2.86	%	3.21	%
Electric—generation	8.67	%	N/A		N/A		N/A		N/A		N/A		N/A		N/A
Gas—transportation and distribution	2.13	%	N/A		1.84	%	2.54	%	1.47	%	N/A		1.47	%	N/A
Common—electric and gas	7.31	%	N/A		6.34	%	7.88	%	8.33	%	N/A		8.69	%	N/A
December 31, 2020
Electric—transmission and distribution	2.79	%	2.95	%	2.31	%	2.69	%	2.81	%	2.53	%	2.85	%	3.08	%
Electric—generation	6.11	%	N/A		N/A		N/A		N/A		N/A		N/A		N/A
Gas—transportation and distribution	2.14	%	N/A		1.85	%	2.56	%	1.50	%	N/A		1.50	%	N/A
Common—electric and gas	7.01	%	N/A		6.39	%	7.45	%	7.36	%	N/A		6.72	%	N/A
December 31, 2019
Electric—transmission and distribution	2.80	%	2.99	%	2.36	%	2.60	%	2.77	%	2.47	%	2.86	%	2.94	%
Electric—generation	4.35	%	N/A		N/A		N/A		N/A		N/A		N/A		N/A
Gas—transportation and distribution	2.04	%	N/A		1.89	%	2.30	%	1.55	%	N/A		1.55	%	N/A
Common—electric and gas	7.37	%	N/A		6.06	%	8.30	%	8.25	%	N/A		6.24	%	N/A

Schedule Of Capitalized Interest And AFUDC

The following table summarizes capitalized interest and credits to AFUDC by year:

	Exelon		ComEd		PECO		BGE		PHI		Pepco		DPL		ACE
December 31, 2021
Capitalized interest	$	16	$	—	$	—	$	—	$	—	$	—	$	—	$	—
AFUDC debt and equity	189		47		34		36		72		59		8		5
December 31, 2020
Capitalized interest	$	22	$	—	$	—	$	—	$	—	$	—	$	—	$	—
AFUDC debt and equity	150		42		23		30		55		42		6		7
December 31, 2019
Capitalized interest	$	24	$	—	$	—	$	—	$	—	$	—	$	—	$	—
AFUDC debt and equity	132		32		17		29		54		39		6		9