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Revenues (Tables) | 12 Months Ended
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Dec. 31, 2018
Revenue from Contract with Customer [Abstract] |
Disaggregation of Revenue | Xcel Energy’s operating revenues (subsequent to adoption of the revised revenue guidance) consists of the following:
|  | Year Ended Dec. 31, 2018
(Millions of Dollars) |  | Electric |  | Natural Gas |  | All Other |  | Total
Major revenue types |  |  |  |  |  |  |  |
Revenue from contracts with customers: |  |  |  |  |  |  |  |
Residential |  | $ | 2,919 |  |  | $ | 988 |  |  | $ | 38 |  |  | $ | 3,945 |
C&I |  | 4,874 |  |  | 524 |  |  | 25 |  |  | 5,423 |
Other |  | 134 |  |  | — |  |  | 6 |  |  | 140 |
Total retail |  | 7,927 |  |  | 1,512 |  |  | 69 |  |  | 9,508 |
Wholesale |  | 791 |  |  | — |  |  | — |  |  | 791 |
Transmission |  | 523 |  |  | — |  |  | — |  |  | 523 |
Other |  | 98 |  |  | 100 |  |  | — |  |  | 198 |
Total revenue from contracts with customers |  | 9,339 |  |  | 1,612 |  |  | 69 |  |  | 11,020 |
Alternative revenue and other |  | 380 |  |  | 127 |  |  | 10 |  |  | 517 |
Total revenues |  | $ | 9,719 |  |  | $ | 1,739 |  |  | $ | 79 |  |  | $ | 11,537 |

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