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Revenue (Tables) | 3 Months Ended
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Mar. 31, 2021
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 March 31, 2021 and 2020, by type of service from each reportable segment:
|  | For the Three Months Ended March 31, 2021
Revenues by Type of Service |  | Regulated Distribution |  | Regulated Transmission |  | Corporate/Other and Reconciling Adjustments (1) |  | Total
|  | (In millions)
Distribution services |  | $ | 1,339 |  |  | $ | — |  |  | $ | (26) |  |  | $ | 1,313 |
Retail generation |  | 935 |  |  | — |  |  | (12) |  |  | 923 |
Wholesale sales |  | 69 |  |  | — |  |  | 4 |  |  | 73 |
Transmission |  | — |  |  | 401 |  |  | — |  |  | 401 |
Other |  | 33 |  |  | — |  |  | — |  |  | 33 |
Total revenues from contracts with customers |  | $ | 2,376 |  |  | $ | 401 |  |  | $ | (34) |  |  | $ | 2,743 |
ARP (2) |  | (27) |  |  | — |  |  | — |  |  | (27) |
Other non-customer revenue |  | 21 |  |  | 4 |  |  | (15) |  |  | 10 |
Total revenues |  | $ | 2,370 |  |  | $ | 405 |  |  | $ | (49) |  |  | $ | 2,726 |
(1) Includes eliminations and reconciling adjustments of inter-segment revenues. (2) Reflects amount the Ohio Companies will collectively refund to customers that was previously collected under decoupling mechanisms, with interest. See Note 8, “Regulatory Matters,” for further discussion on Ohio decoupling rates.
|  | For the Three Months Ended March 31, 2020
Revenues by Type of Service |  | Regulated Distribution |  | Regulated Transmission |  | Corporate/Other and Reconciling Adjustments (1) |  | Total
|  | (In millions)
Distribution services |  | $ | 1,256 |  |  | $ | — |  |  | $ | (21) |  |  | $ | 1,235 |
Retail generation |  | 904 |  |  | — |  |  | (15) |  |  | 889 |
Wholesale sales |  | 71 |  |  | — |  |  | 1 |  |  | 72 |
Transmission |  | — |  |  | 397 |  |  | — |  |  | 397 |
Other |  | 36 |  |  | — |  |  | — |  |  | 36 |
Total revenues from contracts with customers |  | $ | 2,267 |  |  | $ | 397 |  |  | $ | (35) |  |  | $ | 2,629 |
ARP (2) |  | 68 |  |  | — |  |  | — |  |  | 68 |
Other non-customer revenue |  | 23 |  |  | 4 |  |  | (15) |  |  | 12 |
Total revenues |  | $ | 2,358 |  |  | $ | 401 |  |  | $ | (50) |  |  | $ | 2,709 |
(1) Includes eliminations and reconciling adjustments of inter-segment revenues. (2) Reflects Ohio decoupling rates that became effective on February 1, 2020. See Note 8, “Regulatory Matters,” for further discussion on Ohio decoupling rates. The following table represents a disaggregation of the Regulated Distribution segment revenue from contracts with distribution service and retail generation customers for the three months ended March 31, 2021 and 2020, by class:
|  | For the Three Months Ended March 31, |  |
Revenues by Customer Class |  | 2021 |  | 2020 |  |  |  |
|  | (In millions)
Residential |  | $ | 1,457 |  |  | $ | 1,319 |  |  |  |  |
Commercial |  | 541 |  |  | 544 |  |  |  |  |
Industrial |  | 258 |  |  | 277 |  |  |  |  |
Other |  | 18 |  |  | 20 |  |  |  |  |
Total Revenues |  | $ | 2,274 |  |  | $ | 2,160 |  |  |  |  |
The following table represents a disaggregation of revenue from contracts with regulated transmission customers for the three months ended March 31, 2021 and 2020, by transmission owner:
|  | For the Three Months Ended March 31, |  |
Transmission Owner |  | 2021 |  | 2020 |  |  |  |
|  | (In millions)
ATSI |  | $ | 207 |  |  | $ | 204 |  |  |  |  |
TrAIL |  | 59 |  |  | 63 |  |  |  |  |
MAIT |  | 68 |  |  | 57 |  |  |  |  |
JCP&L |  | 40 |  |  | 40 |  |  |  |  |
Other |  | 27 |  |  | 33 |  |  |  |  |
Total Revenues |  | $ | 401 |  |  | $ | 397 |  |  |  |  |

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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=121604090&loc=SL49130545-203045 + Details
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