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REVENUE (Tables) | 3 Months Ended
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Mar. 31, 2019
Revenue from Contract with Customer [Abstract] |
Disaggregation of Revenue | Evergy's, Westar Energy's and KCP&L's revenues disaggregated by customer class are summarized in the following tables.
Three Months Ended March 31, 2019 | Evergy |  | Westar Energy |  | KCP&L
Revenues | (millions)
Residential | $ | 451.7 |  |  | $ | 192.3 |  |  | $ | 164.2 |
Commercial | 413.5 |  |  | 164.3 |  |  | 183.8 |
Industrial | 147.0 |  |  | 98.4 |  |  | 29.7 |
Other retail | 9.8 |  |  | 5.1 |  |  | 2.6 |
Total electric retail | $ | 1,022.0 |  |  | $ | 460.1 |  |  | $ | 380.3 |
Wholesale | 83.1 |  |  | 61.3 |  |  | 18.1 |
Transmission | 76.7 |  |  | 69.2 |  |  | 3.1 |
Industrial steam and other | 3.3 |  |  | 1.7 |  |  | 1.4 |
Total revenue from contracts with customers | $ | 1,185.1 |  |  | $ | 592.3 |  |  | $ | 402.9 |
Other | 31.8 |  |  | 4.5 |  |  | 22.5 |
Operating revenues | $ | 1,216.9 |  |  | $ | 596.8 |  |  | $ | 425.4 |
Three Months Ended March 31, 2018 | Evergy |  | Westar Energy |  | KCP&L(a)
Revenues | (millions)
Residential | $ | 180.3 |  |  | $ | 180.3 |  |  | $ | 154.9 |
Commercial | 155.4 |  |  | 155.4 |  |  | 181.8 |
Industrial | 93.5 |  |  | 93.5 |  |  | 32.2 |
Other retail | 4.2 |  |  | 4.2 |  |  | 2.7 |
Total electric retail | $ | 433.4 |  |  | $ | 433.4 |  |  | $ | 371.6 |
Wholesale | 94.2 |  |  | 94.2 |  |  | 3.1 |
Transmission | 71.9 |  |  | 71.9 |  |  | 3.3 |
Other | 1.8 |  |  | 1.8 |  |  | — |
Total revenue from contracts with customers | $ | 601.3 |  |  | $ | 601.3 |  |  | $ | 378.0 |
Other | (1.1 | ) |  | (1.1 | ) |  | 19.1 |
Operating revenues | $ | 600.2 |  |  | $ | 600.2 |  |  | $ | 397.1 |
(a)KCP&L amounts are not included in consolidated Evergy for the three months ended March 31, 2018.

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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://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 606 -SubTopic 10 -Section 50 -Paragraph 5 -URI http://asc.fasb.org/extlink&oid=109196051&loc=SL49130545-203045 + Details
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