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Revenue Recognition (Tables)

12 Months Ended

Dec. 31, 2019

Revenue from Contract with Customer [Abstract]

Disaggregation of revenue

The following tables represent the Company’s disaggregation of revenue from contracts with customers for the years ended December 31, 2019 and 2018:

			For the Year Ended December 31, 2019
(In millions)			Texas						East						West/Other												Corporate/Eliminations						Total
Retail revenue
Mass Market			$	5,027					$	1,230					$	—											$	(3)					$	6,254
Business Solutions			1,205						74						—												—						1,279
Total retail revenue			6,232						1,304						—												(3)						7,533
Energy revenue(a)			529						322						318												—						1,169
Capacity revenue(a)			—						664						36												—						700
Mark-to-market for economic hedging activities(b)			47						(29)						16												(1)						33
Other revenue(a)			261						58						70												(3)						386
Total operating revenue			7,069						2,319						440												(7)						9,821
Less: Lease revenue			—						1						19												—						20
Less: Realized and unrealized ASC 815 revenue			1,562						183						67												(2)						1,810
Total revenue from contracts with customers			$	5,507					$	2,135					$	354											$	(5)					$	7,991
(a) The following amounts of energy, capacity and other revenue relate to derivative instruments and are accounted for under ASC 815:
(In millions)			Texas						East						West/Other												Corporate/Eliminations						Total
Energy revenue			$	1,459					$	98					$	39											$	(1)					$	1,595
Capacity revenue			—						109						—												—						109
Other revenue			56						5						12												—						73
(b) Revenue relates entirely to unrealized gains and losses on derivative instruments accounted for under ASC 815

			For the Year Ended December 31, 2018
(In millions)			Texas						East						West/Other												Corporate/Eliminations						Total
Retail revenue
Mass Market			$	4,618					$	974					$	—											$	(1)					$	5,591
Business Solutions			1,238						65						—												—						1,303
Total retail revenue			5,856						1,039						—												(1)						6,894
Energy revenue(a)			371						546						566												13						1,496
Capacity revenue(a)			—						746						79												—						825
Mark-to-market for economic hedging activities(b)			(77)						(35)						(5)												(13)						(130)
Other revenue(a)(c)			251						75						84												(17)						393
Total operating revenue			6,401						2,371						724												(18)						9,478
Less: Lease revenue			1						1						19												—						21
Less: Realized and unrealized ASC 815 revenue			1,096						210						2												1						1,309
Total revenue from contracts with customers			$	5,304					$	2,160					$	703											$	(19)					8,148
(a) The following amounts of energy, capacity and other revenue relate to derivative instruments and are accounted for under ASC 815:
(In millions)			Texas						East						West/Other												Corporate/Eliminations						Total
Energy revenue			$	1,131					$	90					$	(2)											$	14					$	1,233
Capacity revenue			—						137						—												—						137
Other revenue			42						17						9												1						69

(b) Revenue relates entirely to unrealized gains and losses on derivative instruments accounted for under ASC 815

Contract assets and liabilities

The following table reflects the contract assets and liabilities included in the Company's balance sheet as of December 31, 2019 and 2018:

(In millions)						December 31, 2019						December 31, 2018
Deferred customer acquisition costs						$	133					$	111
Accounts receivable, net - Contracts with customers						1,002						999
Accounts receivable, net - Derivative instruments						18						20
Accounts receivable, net - Affiliate						5						5
Total accounts receivable, net						$	1,025					$	1,024
Unbilled revenues (included within Accounts receivable, net - Contracts with customers)						$	402					$	392
Deferred revenues (a)						$	82					$	67

(a) Deferred revenues from contracts with customers for the years ended December 31, 2019 and 2018 were approximately $24 million and $19 million, respectively.

X

- Definition

Tabular disclosure of contract balances and changes in contract balances.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 606
-SubTopic 10
-Section 50
-Paragraph 10
-URI http://asc.fasb.org/extlink&oid=118956577&loc=SL49130551-203045

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X

- Definition

Tabular disclosure of disaggregation of revenue into categories depicting how nature, amount, timing, and uncertainty of revenue and cash flows are affected by economic factor.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 606
-SubTopic 10
-Section 50
-Paragraph 5
-URI http://asc.fasb.org/extlink&oid=118956577&loc=SL49130545-203045

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