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Property, Plant and Equipment, Net (Tables)

12 Months Ended

Dec. 31, 2021

Property, plant and equipment, net consists of the following as of December 31 (in millions):


	Depreciable
	Life	2021		2020
Regulated assets:
Utility generation, transmission and distribution systems	5-80 years	$	90,223	$	86,730
Interstate natural gas pipeline assets	3-80 years	17,423		16,667
		107,646		103,397
Accumulated depreciation and amortization		(32,680)		(30,662)
Regulated assets, net		74,966		72,735

Nonregulated assets:
Independent power plants	2-50 years	7,665		7,012
Cove Point LNG facility	40 years	3,364		3,339
Other assets	2-30 years	2,666		2,320
		13,695		12,671
Accumulated depreciation and amortization		(3,041)		(2,586)
Nonregulated assets, net		10,654		10,085

Net operating assets		85,620		82,820
Construction work-in-progress		4,196		3,308
Property, plant and equipment, net		$	89,816	$	86,128

Property, plant and equipment, net consists of the following as of December 31 (in millions):


	Depreciable Life	2021		2020
Utility Plant:
Generation	15 - 59 years	$	13,679	$	12,861
Transmission	60 - 90 years	7,894		7,632
Distribution	20 - 75 years	8,044		7,660
Intangible plant(1)	5 - 75 years	1,106		1,054
Other	5 - 60 years	1,539		1,510
Utility plant in-service		32,262		30,717
Accumulated depreciation and amortization		(10,507)		(9,838)
Utility plant in-service, net		21,755		20,879
Other non-regulated, net of accumulated depreciation and amortization	14 - 95 years	18		9
Plant, net		21,773		20,888
Construction work-in-progress		1,141		1,542
Property, plant and equipment, net		$	22,914	$	22,430

(1)Computer software costs included in intangible plant are initially assigned a depreciable life of 5 to 10 years.

Property, plant and equipment, net consists of the following as of December 31 (in millions):


	Depreciable Life	2021		2020

Utility plant in-service, net:
Generation	20-70 years	$	17,397	$	16,980
Transmission	52-75 years	2,474		2,365
Electric distribution	20-75 years	4,661		4,369
Natural gas distribution	29-75 years	2,039		1,955
Utility plant in-service		26,571		25,669
Accumulated depreciation and amortization		(7,376)		(6,902)
Utility plant in-service, net		19,195		18,767
Nonregulated property, net:
Nonregulated property gross	20-50 years	7		7
Accumulated depreciation and amortization		(1)		(1)
Nonregulated property, net		6		6
		19,201		18,773
Construction work-in-progress		1,100		506
Property, plant and equipment, net		$	20,301	$	19,279

The average depreciation and amortization rates applied to depreciable utility plant for the years ended December 31 were as follows:

Property, plant and equipment, net consists of the following as of December 31 (in millions):


	Depreciable Life	2021		2020
Utility plant:
Generation	30 - 55 years	$	3,793	$	3,690
Transmission	45 - 70 years	1,503		1,468
Distribution	20 - 65 years	3,920		3,771
General and intangible plant	5 - 65 years	836		791
Utility plant		10,052		9,720
Accumulated depreciation and amortization		(3,406)		(3,162)
Utility plant, net		6,646		6,558
Other non-regulated, net of accumulated depreciation and amortization	45 years	1		1
Plant, net		6,647		6,559
Construction work-in-progress		244		142
Property, plant and equipment, net		$	6,891	$	6,701

Property, plant and equipment, net consists of the following as of December 31 (in millions):


	Depreciable Life	2021		2020
Utility plant:
Electric generation	25 - 60 years	$	1,163	$	1,130
Electric transmission	50 - 100 years	940		908
Electric distribution	20 - 100 years	1,846		1,754
Electric general and intangible plant	5 - 70 years	204		189
Natural gas distribution	35 - 70 years	438		429
Natural gas general and intangible plant	5 - 70 years	14		15
Common general	5 - 70 years	370		355
Utility plant		4,975		4,780
Accumulated depreciation and amortization		(1,854)		(1,755)
Utility plant, net		3,121		3,025
Other non-regulated, net of accumulated depreciation and amortization	70 years	—		2
Plant, net		3,121		3,027
Construction work-in-progress		219		137
Property, plant and equipment, net		$	3,340	$	3,164

Property, plant and equipment, net consists of the following as of December 31 (in millions):


	Depreciable Life	2021		2020
Utility Plant:

Interstate natural gas pipeline assets	21 - 44 years	$	8,675	$	8,382
Intangible plant	5 - 10 years	110		115
Utility plant in-service		8,785		8,497
Accumulated depreciation and amortization		(2,901)		(2,759)
Utility plant in-service, net		5,884		5,738

Nonutility Plant:

LNG facility	40 years	4,475		4,454
Intangible plant	14 years	25		25
Nonutility plant in-service		4,500		4,479
Accumulated depreciation and amortization		(423)		(283)
Nonutility plant in-service, net		4,077		4,196

Plant, net		9,961		9,934
Construction work- in-progress		239		210
Property, plant and equipment, net		$	10,200	$	10,144