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Revenue (Tables) | 9 Months Ended
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Sep. 30, 2019
Revenue from Contract with Customer [Abstract] |
Disaggregation of Revenue | The following tables represent a disaggregation of revenue from contracts with customers for the three months ended September 30, 2019 and 2018, by type of service from each reportable segment:
|  | For the Three Months Ended September 30, 2019
Revenues by Type of Service |  | Regulated Distribution |  | Regulated Transmission |  | Corporate/Other and Reconciling Adjustments (1) |  | Total
|  | (In millions)
Distribution services(2) |  | $ | 1,457 |  |  | $ | — |  |  | $ | (21 | ) |  | $ | 1,436 |
Retail generation |  | 989 |  |  | — |  |  | (14 | ) |  | 975 |
Wholesale sales |  | 100 |  |  | — |  |  | 2 |  |  | 102 |
Transmission(2) |  | — |  |  | 371 |  |  | — |  |  | 371 |
Other |  | 42 |  |  | — |  |  | — |  |  | 42 |
Total revenues from contracts with customers |  | $ | 2,588 |  |  | $ | 371 |  |  | $ | (33 | ) |  | $ | 2,926 |
ARP |  | 25 |  |  | — |  |  | — |  |  | 25 |
Other non-customer revenue |  | 23 |  |  | 4 |  |  | (15 | ) |  | 12 |
Total revenues |  | $ | 2,636 |  |  | $ | 375 |  |  | $ | (48 | ) |  | $ | 2,963 |
(1) Includes eliminations and reconciling adjustments of inter-segment revenues. (2) Includes reductions to revenue related to amounts subject to refund resulting from the Tax Act ($4 million at Regulated Distribution and $4 million at Regulated Transmission) and Rider DMR as discussed in Note 12, “Regulatory Matters” (approximately $31 million at Regulated Distribution).
|  | For the Three Months Ended September 30, 2018
Revenues by Type of Service |  | Regulated Distribution |  | Regulated Transmission |  | Corporate/Other and Reconciling Adjustments (1) |  | Total
|  | (In millions)
Distribution services(2) |  | $ | 1,440 |  |  | $ | — |  |  | $ | (22 | ) |  | $ | 1,418 |
Retail generation |  | 1,059 |  |  | — |  |  | (14 | ) |  | 1,045 |
Wholesale sales |  | 133 |  |  | — |  |  | 6 |  |  | 139 |
Transmission(2) |  | — |  |  | 341 |  |  | — |  |  | 341 |
Other |  | 43 |  |  | — |  |  | — |  |  | 43 |
Total revenues from contracts with customers |  | $ | 2,675 |  |  | $ | 341 |  |  | $ | (30 | ) |  | $ | 2,986 |
ARP |  | 66 |  |  | — |  |  | — |  |  | 66 |
Other non-customer revenue |  | 25 |  |  | 5 |  |  | (18 | ) |  | 12 |
Total revenues |  | $ | 2,766 |  |  | $ | 346 |  |  | $ | (48 | ) |  | $ | 3,064 |
(1) Includes eliminations and reconciling adjustments of inter-segment revenues. (2) Includes $29 million in net reductions to revenue related to amounts subject to refund resulting from the Tax Act ($27 million at Regulated Distribution and $2 million at Regulated Transmission). Other non-customer revenue includes revenue from late payment charges of $9 million for both the three months ended September 30, 2019 and 2018, as well as revenue from derivatives of $2 million and $4 million, for the three months ended September 30, 2019 and 2018, respectively. The following tables represent a disaggregation of revenue from contracts with customers for the nine months ended September 30, 2019 and 2018, by type of service from each reportable segment:
|  | For the Nine Months Ended September 30, 2019
Revenues by Type of Service |  | Regulated Distribution |  | Regulated Transmission |  | Corporate/Other and Reconciling Adjustments (1) |  | Total
|  | (In millions)
Distribution services(2) |  | $ | 3,903 |  |  | $ | — |  |  | $ | (63 | ) |  | $ | 3,840 |
Retail generation |  | 2,853 |  |  | — |  |  | (42 | ) |  | 2,811 |
Wholesale sales |  | 316 |  |  | — |  |  | 9 |  |  | 325 |
Transmission(2) |  | — |  |  | 1,090 |  |  | — |  |  | 1,090 |
Other |  | 113 |  |  | — |  |  | 1 |  |  | 114 |
Total revenues from contracts with customers |  | $ | 7,185 |  |  | $ | 1,090 |  |  | $ | (95 | ) |  | $ | 8,180 |
ARP |  | 142 |  |  | — |  |  | — |  |  | 142 |
Other non-customer revenue |  | 74 |  |  | 13 |  |  | (47 | ) |  | 40 |
Total revenues |  | $ | 7,401 |  |  | $ | 1,103 |  |  | $ | (142 | ) |  | $ | 8,362 |
(1) Includes eliminations and reconciling adjustments of inter-segment revenues. (2) Includes reductions to revenue related to amounts subject to refund resulting from the Tax Act ($31 million at Regulated Distribution and $11 million at Regulated Transmission) and Rider DMR as discussed in Note 12, “Regulatory Matters” (approximately $31 million at Regulated Distribution).
|  | For the Nine Months Ended September 30, 2018
Revenues by Type of Service |  | Regulated Distribution |  | Regulated Transmission |  | Corporate/Other and Reconciling Adjustments (1) |  | Total
|  | (In millions)
Distribution services(2) |  | $ | 3,949 |  |  | $ | — |  |  | $ | (81 | ) |  | $ | 3,868 |
Retail generation |  | 2,981 |  |  | — |  |  | (42 | ) |  | 2,939 |
Wholesale sales |  | 377 |  |  | — |  |  | 16 |  |  | 393 |
Transmission(2) |  | — |  |  | 996 |  |  | — |  |  | 996 |
Other |  | 113 |  |  | — |  |  | 4 |  |  | 117 |
Total revenues from contracts with customers |  | $ | 7,420 |  |  | $ | 996 |  |  | $ | (103 | ) |  | $ | 8,313 |
ARP |  | 190 |  |  | — |  |  | — |  |  | 190 |
Other non-customer revenue |  | 84 |  |  | 14 |  |  | (50 | ) |  | 48 |
Total revenues |  | $ | 7,694 |  |  | $ | 1,010 |  |  | $ | (153 | ) |  | $ | 8,551 |
(1) Includes eliminations and reconciling adjustments of inter-segment revenues. (2) Includes $113 million in reductions to revenue related to amounts subject to refund resulting from the Tax Act ($109 million at Regulated Distribution and $4 million at Regulated Transmission). The following table represents a disaggregation of revenue from contracts with regulated transmission customers by transmission owner for the three and nine months ended September 30, 2019 and 2018, by transmission owner:
|  | For the Three Months Ended September 30, |  | For the Nine Months Ended September 30,
Transmission Owner |  | 2019 |  | 2018 |  | 2019 |  | 2018
|  | (In millions)
ATSI |  | $ | 184 |  |  | $ | 167 |  |  | $ | 542 |  |  | $ | 492 |
TrAIL |  | 55 |  |  | 60 |  |  | 172 |  |  | 183 |
MAIT |  | 58 |  |  | 43 |  |  | 157 |  |  | 106 |
Other |  | 74 |  |  | 71 |  |  | 219 |  |  | 215 |
Total Revenues |  | $ | 371 |  |  | $ | 341 |  |  | $ | 1,090 |  |  | $ | 996 |
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 nine months ended September 30, 2019 and 2018, by class:
|  | For the Three Months Ended September 30, |  | For the Nine Months Ended September 30,
Revenues by Customer Class |  | 2019 |  | 2018 |  | 2019 |  | 2018
|  | (In millions)
Residential |  | $ | 1,538 |  |  | $ | 1,572 |  |  | $ | 4,145 |  |  | $ | 4,290 |
Commercial |  | 600 |  |  | 628 |  |  | 1,759 |  |  | 1,778 |
Industrial |  | 286 |  |  | 276 |  |  | 786 |  |  | 792 |
Other |  | 22 |  |  | 23 |  |  | 66 |  |  | 70 |
Total Revenues |  | $ | 2,446 |  |  | $ | 2,499 |  |  | $ | 6,756 |  |  | $ | 6,930 |

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- 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 + Details
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