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v3.21.2

Reportable Segments (Details) - USD ($) $ in Millions | 3 Months Ended | 6 Months Ended |
--- | --- | --- | ---
Jun. 30, 2021 | Jun. 30, 2020 | Jun. 30, 2021 | Jun. 30, 2020 | Dec. 31, 2020
Segment Reporting Information [Line Items] |  |  |  |  |
Operating Revenue | $ 1,558 | $ 1,382 | $ 3,571 | $ 3,184 |
Net income available to common stockholders | 176 | 136 | 525 | 379 |
Plant, property, and equipment, gross | 29,027 |  | 29,027 |  | $ 27,870
Assets | 29,953 |  | 29,953 |  | 29,666
Consumers Energy Company |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |
Operating Revenue | 1,493 | 1,330 | 3,430 | 3,074 |
Net income available to common stockholders | 189 | 159 | 525 | 394 |
Plant, property, and equipment, gross | 27,910 |  | 27,910 |  | 26,757
Assets | 25,680 |  | 25,680 |  | 25,399
Other reconciling items |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |
Net income available to common stockholders | (19) | (25) | (20) | (37) |
Plant, property, and equipment, gross | 22 |  | 22 |  | 21
Assets | 3,139 |  | 3,139 |  | 3,132
Other reconciling items | Consumers Energy Company |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |
Net income available to common stockholders | (1) | (1) | (1) | (1) |
Plant, property, and equipment, gross | 22 |  | 22 |  | 21
Assets | 21 |  | 21 |  | 29
Electric Utility | Operating Segments |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |
Operating Revenue | 1,160 | 1,022 | 2,294 | 2,050 |
Net income available to common stockholders | 154 | 119 | 309 | 237 |
Plant, property, and equipment, gross | 17,816 |  | 17,816 |  | 17,155
Assets | 16,078 |  | 16,078 |  | 15,829
Electric Utility | Operating Segments | Consumers Energy Company |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |
Operating Revenue | 1,160 | 1,022 | 2,294 | 2,050 |
Net income available to common stockholders | 154 | 119 | 309 | 237 |
Plant, property, and equipment, gross | 17,816 |  | 17,816 |  | 17,155
Assets | 16,141 |  | 16,141 |  | 15,893
Gas Utility | Operating Segments |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |
Operating Revenue | 333 | 308 | 1,136 | 1,024 |
Net income available to common stockholders | 36 | 41 | 217 | 158 |
Plant, property, and equipment, gross | 10,072 |  | 10,072 |  | 9,581
Assets | 9,470 |  | 9,470 |  | 9,429
Gas Utility | Operating Segments | Consumers Energy Company |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |
Operating Revenue | 333 | 308 | 1,136 | 1,024 |
Net income available to common stockholders | 36 | 41 | 217 | 158 |
Plant, property, and equipment, gross | 10,072 |  | 10,072 |  | 9,581
Assets | 9,518 |  | 9,518 |  | 9,477
Enterprises | Operating Segments |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |
Operating Revenue | 65 | 52 | 141 | 110 |
Net income available to common stockholders | 5 | $ 1 | 19 | $ 21 |
Plant, property, and equipment, gross | 1,117 |  | 1,117 |  | 1,113
Assets | $ 1,266 |  | $ 1,266 |  | $ 1,276

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