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v3.23.1

Reportable Segments (Details) - USD ($) $ in Millions | 3 Months Ended |
--- | --- | ---
Mar. 31, 2023 | Mar. 31, 2022 | Dec. 31, 2022
Segment Reporting Information [Line Items] |  |  |
Operating Revenue | $ 2,284 | $ 2,374 |
Net income (loss) available to common stockholders | 202 | 351 |
Plant, property, and equipment, gross | 30,866 |  | $ 30,491
Total assets | 31,386 |  | 31,353
Consumers Energy Company |  |  |
Segment Reporting Information [Line Items] |  |  |
Operating Revenue | 2,210 | 2,283 |
Net income (loss) available to common stockholders | 232 | 383 |
Plant, property, and equipment, gross | 29,721 |  | 29,342
Total assets | 29,772 |  | 29,916
Other reconciling items |  |  |
Segment Reporting Information [Line Items] |  |  |
Net income (loss) available to common stockholders | (29) | (40) |
Plant, property, and equipment, gross | 28 |  | 30
Total assets | 228 |  | 109
Other reconciling items | Consumers Energy Company |  |  |
Segment Reporting Information [Line Items] |  |  |
Net income (loss) available to common stockholders | 8 | 0 |
Plant, property, and equipment, gross | 34 |  | 29
Total assets | 43 |  | 30
Electric Utility | Operating Segments |  |  |
Segment Reporting Information [Line Items] |  |  |
Operating Revenue | 1,091 | 1,241 |
Net income (loss) available to common stockholders | 70 | 167 |
Plant, property, and equipment, gross | 18,056 |  | 17,870
Total assets | 18,117 |  | 17,907
Electric Utility | Operating Segments | Consumers Energy Company |  |  |
Segment Reporting Information [Line Items] |  |  |
Operating Revenue | 1,091 | 1,241 |
Net income (loss) available to common stockholders | 70 | 167 |
Plant, property, and equipment, gross | 18,056 |  | 17,870
Total assets | 18,177 |  | 17,968
Gas Utility | Operating Segments |  |  |
Segment Reporting Information [Line Items] |  |  |
Operating Revenue | 1,119 | 1,042 |
Net income (loss) available to common stockholders | 154 | 216 |
Plant, property, and equipment, gross | 11,631 |  | 11,443
Total assets | 11,507 |  | 11,873
Gas Utility | Operating Segments | Consumers Energy Company |  |  |
Segment Reporting Information [Line Items] |  |  |
Operating Revenue | 1,119 | 1,042 |
Net income (loss) available to common stockholders | 154 | 216 |
Plant, property, and equipment, gross | 11,631 |  | 11,443
Total assets | 11,552 |  | 11,918
NorthStar Clean Energy | Operating Segments |  |  |
Segment Reporting Information [Line Items] |  |  |
Operating Revenue | 74 | 91 |
Net income (loss) available to common stockholders | 7 | $ 8 |
Plant, property, and equipment, gross | 1,151 |  | 1,148
Total assets | $ 1,534 |  | $ 1,464

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