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v3.20.2

Reportable Segments (Details) - USD ($) $ in Millions | 3 Months Ended | 9 Months Ended |
--- | --- | --- | ---
Sep. 30, 2020 | Sep. 30, 2019 | Sep. 30, 2020 | Sep. 30, 2019 | Dec. 31, 2019
Segment Reporting Information [Line Items] |  |  |  |  |
Operating Revenue | $ 1,575 | $ 1,546 | $ 4,882 | $ 5,050 |
Net income (loss) available to common stockholders | 218 | 207 | 597 | 513 |
Plant, property, and equipment, gross | 27,036 |  | 27,036 |  | $ 25,390
Total Assets | 29,280 |  | 29,280 |  | 26,837
Consumers Energy Company |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |
Operating Revenue | 1,450 | 1,429 | 4,524 | 4,706 |
Net income (loss) available to common stockholder | 230 | 213 | 624 | 536 |
Plant, property, and equipment, gross | 25,893 |  | 25,893 |  | 24,963
Total Assets | 24,836 |  | 24,836 |  | 23,699
Operating Segments | Electric Utility |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |
Operating Revenue | 1,257 | 1,250 | 3,307 | 3,380 |
Net income (loss) available to common stockholders | 226 | 223 | 463 | 418 |
Plant, property, and equipment, gross | 16,668 |  | 16,668 |  | 16,158
Total Assets | 15,556 |  | 15,556 |  | 14,911
Operating Segments | Electric Utility | Consumers Energy Company |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |
Operating Revenue | 1,257 | 1,250 | 3,307 | 3,380 |
Net income (loss) available to common stockholder | 226 | 223 | 463 | 418 |
Plant, property, and equipment, gross | 16,668 |  | 16,668 |  | 16,158
Total Assets | 15,621 |  | 15,621 |  | 14,973
Operating Segments | Gas Utility |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |
Operating Revenue | 193 | 179 | 1,217 | 1,326 |
Net income (loss) available to common stockholders | 4 | (10) | 162 | 119 |
Plant, property, and equipment, gross | 9,204 |  | 9,204 |  | 8,785
Total Assets | 9,148 |  | 9,148 |  | 8,659
Operating Segments | Gas Utility | Consumers Energy Company |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |
Operating Revenue | 193 | 179 | 1,217 | 1,326 |
Net income (loss) available to common stockholder | 4 | (10) | 162 | 119 |
Plant, property, and equipment, gross | 9,204 |  | 9,204 |  | 8,785
Total Assets | 9,196 |  | 9,196 |  | 8,706
Operating Segments | Enterprises |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |
Operating Revenue | 57 | 59 | 167 | 184 |
Net income (loss) available to common stockholders | 13 | 7 | 34 | 30 |
Plant, property, and equipment, gross | 1,109 |  | 1,109 |  | 405
Total Assets | 1,250 |  | 1,250 |  | 527
Operating Segments | EnerBank |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |
Operating Revenue | 68 | 58 | 191 | 160 |
Net income (loss) available to common stockholders | 12 | 11 | 34 | 32 |
Plant, property, and equipment, gross | 34 |  | 34 |  | 22
Total Assets | 3,125 |  | 3,125 |  | 2,692
Other reconciling items |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |
Net income (loss) available to common stockholders | (37) | (24) | (96) | (86) |
Plant, property, and equipment, gross | 21 |  | 21 |  | 20
Total Assets | 201 |  | 201 |  | 48
Other reconciling items | Consumers Energy Company |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |
Net income (loss) available to common stockholder | 0 | $ 0 | (1) | $ (1) |
Plant, property, and equipment, gross | 21 |  | 21 |  | 20
Total Assets | $ 19 |  | $ 19 |  | $ 20

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