The following tables represent a disaggregation of revenue from contracts with customers for the three months ended June 30, 2020 and 2019, by type of service from each reportable segment:


	For the Three Months Ended June 30, 2020
Revenues by Type of Service	Regulated Distribution		Regulated Transmission		Corporate/Other and Reconciling Adjustments ⁽¹⁾		Total
	(In millions)
Distribution services ⁽²⁾	$	1,241	$	—	$	(22)	$	1,219
Retail generation	826		—		(15)		811
Wholesale sales	50		—		2		52
Transmission ⁽²⁾	—		380		—		380
Other	31		—		—		31
Total revenues from contracts with customers	$	2,148	$	380	$	(35)	$	2,493
ARP ⁽³⁾	15		—		—		15
Other non-customer revenue	25		4		(15)		14
Total revenues	$	2,188	$	384	$	(50)	$	2,522

⁽²⁾Includes $22 million reductions to revenue related to amounts subject to refund resulting from the Tax Act, primarily at Regulated Distribution.

⁽³⁾ ARP revenue for the three months ended June 30, 2020, is primarily related to the reconciliation of Ohio decoupling rates that became effective on February 1, 2020.


	For the Three Months Ended June 30, 2019
Revenues by Type of Service	Regulated Distribution		Regulated Transmission		Corporate/Other and Reconciling Adjustments ⁽¹⁾		Total
	(In millions)
Distribution services	$	1,160	$	—	$	(21)	$	1,139
Retail generation	806		—		(14)		792
Wholesale sales	110		—		3		113
Transmission ⁽²⁾	—		367		—		367
Other	37		—		—		37
Total revenues from contracts with customers	$	2,113	$	367	$	(32)	$	2,448
ARP ⁽³⁾	55		—		—		55
Other non-customer revenue	24		5		(16)		13
Total revenues	$	2,192	$	372	$	(48)	$	2,516

⁽²⁾Includes $2 million in reductions to revenue at Regulated Transmission related to amounts subject to refund resulting from the Tax Act.

The following tables represent a disaggregation of revenue from contracts with customers for the six months ended June 30, 2020 and 2019, by type of service from each reportable segment:


	For the Six Months Ended June 30, 2020
Revenues by Type of Service	Regulated Distribution		Regulated Transmission		Corporate/Other and Reconciling Adjustments ⁽¹⁾		Total
	(In millions)
Distribution services ⁽²⁾	$	2,497	$	—	$	(43)	$	2,454
Retail generation	1,730		—		(30)		1,700
Wholesale sales	121		—		3		124
Transmission ⁽²⁾	—		777		—		777
Other	67		—		—		67
Total revenues from contracts with customers	$	4,415	$	777	$	(70)	$	5,122
ARP ⁽³⁾	83		—		—		83
Other non-customer revenue	48		8		(30)		26
Total revenues	$	4,546	$	785	$	(100)	$	5,231

⁽²⁾Includes $45 million in net reductions to revenue related to amounts subject to refund resulting from the Tax Act, primarily at Regulated Distribution.

⁽³⁾ ARP revenue for the six months ended June 30, 2020, is primarily related to the reconciliation of Ohio decoupling rates that became effective on February 1, 2020.


	For the Six Months Ended June 30, 2019
Revenues by Type of Service	Regulated Distribution		Regulated Transmission		Corporate/Other and Reconciling Adjustments ⁽¹⁾		Total
	(In millions)
Distribution services ⁽²⁾	$	2,446	$	—	$	(42)	$	2,404
Retail generation	1,864		—		(28)		1,836
Wholesale sales	216		—		7		223
Transmission ⁽²⁾	—		719		—		719
Other	71		—		1		72
Total revenues from contracts with customers	$	4,597	$	719	$	(62)	$	5,254
ARP ⁽³⁾	117		—		—		117
Other non-customer revenue	51		9		(32)		28
Total revenues	$	4,765	$	728	$	(94)	$	5,399

⁽²⁾Includes $34 million in net reductions to revenue related to amounts subject to refund resulting from the Tax Act ($27 million at Regulated Distribution and $7 million at Regulated Transmission).

The following table represents a disaggregation of the Regulated Distribution segment revenue from contracts with distribution service and retail generation customers for the three and six months ended June 30, 2020 and 2019, by class:


	For the Three Months Ended June 30,						For the Six Months Ended June 30,
Revenues by Customer Class	2020		2019		2020		2019
	(In millions)
Residential	$	1,280	$	1,123	$	2,599	$	2,607
Commercial	507		572		1,051		1,159
Industrial	259		251		536		500
Other	21		20		41		44
Total Revenues	$	2,067	$	1,966	$	4,227	$	4,310

The following table represents a disaggregation of revenue from contracts with regulated transmission customers by transmission owner for the three and six months ended June 30, 2020 and 2019, by transmission owner:


	For the Three Months Ended June 30,						For the Six Months Ended June 30,
Transmission Owner	2020		2019		2020		2019
	(In millions)
ATSI	$	192	$	184	$	396	$	358
TrAIL	58		59		121		117
MAIT	58		50		115		99
Other	72		74		145		145
Total Revenues	$	380	$	367	$	777	$	719