Revenue (Tables)

3 Months Ended

Mar. 31, 2020

Revenue from Contract with Customer [Abstract]

Schedule of Revenues Disaggregated by Major Source for Reportable Segments

Revenues disaggregated by major source for our reportable segments for the three months ended March 31, 2020 and 2019 are as follows:

	Three Months Ended March 31, 2020
	Networks		Renewables		Other (b)		Total
(Millions)
Regulated operations – electricity	$	873	$	—	$	—	$	873
Regulated operations – natural gas	507		—		—		507
Nonregulated operations – wind	—		211		—		211
Nonregulated operations – solar	—		4		—		4
Nonregulated operations – thermal	—		10		—		10
Other(a)	19		28		—		47
Revenue from contracts with customers	1,399		253		—		1,652
Leasing revenue	1		—		—		1
Derivative revenue	—		70		—		70
Alternative revenue programs	56		—		—		56
Other revenue	5		5		—		10
Total operating revenues	$	1,461	$	328	$	—	$	1,789

	Three Months Ended March 31, 2019
	Networks		Renewables			Other (b)			Total
(Millions)
Regulated operations – electricity	$	913	$	—		$	—		$	913
Regulated operations – natural gas	625		—			—			625
Nonregulated operations – wind	—		182			—			182
Nonregulated operations – solar	—		5			—			5
Nonregulated operations – thermal	—		16			—			16
Other(a)	37		(7		)	(4		)	26
Revenue from contracts with customers	1,575		196			(4		)	1,767
Leasing revenue	1		—			—			1
Derivative revenue	—		41			—			41
Alternative revenue programs	16		—			—			16
Other revenue	12		5			—			17
Total operating revenues	$	1,604	$	242		$	(4	)	$	1,842

(a) Primarily includes certain intra-month trading activities, billing, collection and administrative charges, sundry billings and other miscellaneous revenue.

(b)

Does not represent a segment. Includes Corporate and intersegment eliminations.

Schedule of Aggregate Transaction Price Allocations

As of March 31, 2020, the aggregate amount of the transaction price allocated to performance obligations that are unsatisfied (or partially unsatisfied) were as follows:

As of March 31, 2020	2021		2022		2023		2024		2025		Thereafter		Total
(Millions)
Revenue expected to be recognized on multiyear retail energy sales contracts in place	$	1	$	1	$	1	$	1	$	—	$	—	$	4
Revenue expected to be recognized on multiyear capacity and carbon-free energy sale contracts	35		19		11		8		7		17		97
Revenue expected to be recognized on multiyear renewable energy credit sale contracts	17		9		6		4		3		5		44
Total operating revenues	$	53	$	29	$	18	$	13	$	10	$	22	$	145