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Quarterly Financial And Common Stock Information (Unaudited) | 12 Months Ended
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Dec. 31, 2021
Quarterly Financial Data [Abstract] |
Quarterly Financial and Common Stock Information (Unaudited) | Quarterly Financial and Common Stock Information (Unaudited) Presented in the table below are CMS Energy’s quarterly financial and common stock information. CMS Energy has reclassified certain prior period amounts to conform to the presentation in the present period. The most significant reclassification is related to the sale of EnerBank to Regions Bank. EnerBank’s results of operations through the date of the sale are presented as income from discontinued operations on CMS Energy’s consolidated statements of income for the years ended December 31, 2021 and 2020.
In Millions, Except Per Share Amounts
| 2021
Three Months Ended | March 31 | June 30 | September 30 | December 31
CMS Energy, including Consumers |  |  |  |  |  |  |  |
Operating revenue |  | $ | 2,013 |  |  | $ | 1,558 |  |  | $ | 1,725 |  |  | $ | 2,033 |
Operating income |  | 430 |  |  | 252 |  |  | 260 |  |  | 204 |
Income From Continuing Operations |  | 308 |  |  | 153 |  |  | 153 |  |  | 114 |
Income From Discontinued Operations, Net of Tax |  | 34 |  |  | 18 |  |  | 30 |  |  | 520 |
Net income |  | 342 |  |  | 171 |  |  | 183 |  |  | 634 |
Loss attributable to noncontrolling interests |  | (7) |  |  | (5) |  |  | (6) |  |  | (5) |
Net Income Attributable to CMS Energy |  | 349 |  |  | 176 |  |  | 189 |  |  | 639 |
Preferred Stock Dividends |  | — |  |  | — |  |  | 3 |  |  | 2 |
Net income available to common stockholders |  | 349 |  |  | 176 |  |  | 186 |  |  | 637 |
Basic earnings per average common share |  |  |  |  |  |  |  |
Income from continuing operations per average common share available to common stockholders 1 |  | 1.09 |  |  | 0.55 |  |  | 0.54 |  |  | 0.40 |
Income from discontinued operations per average common share available to common stockholders 1 |  | 0.12 |  |  | 0.06 |  |  | 0.10 |  |  | 1.80 |
Basic earnings per average common share 1 |  | 1.21 |  |  | 0.61 |  |  | 0.64 |  |  | 2.20 |
Diluted earnings per average common share |  |  |  |  |  |  |  |
Income from continuing operations per average common share available to common stockholders 1 |  | 1.09 |  |  | 0.55 |  |  | 0.54 |  |  | 0.40 |
Income from discontinued operations per average common share available to common stockholders 1 |  | 0.12 |  |  | 0.06 |  |  | 0.10 |  |  | 1.80 |
Diluted earnings per average common share 1 |  | 1.21 |  |  | 0.61 |  |  | 0.64 |  |  | 2.20 |
1 The sum of the quarters may not equal annual EPS due to changes in the number of shares outstanding.
In Millions, Except Per Share Amounts
| 2020
Three Months Ended | March 31 | June 30 | September 30 | December 31
CMS Energy, including Consumers |  |  |  |  |  |  |  |
Operating revenue |  | $ | 1,802 |  |  | $ | 1,382 |  |  | $ | 1,507 |  |  | $ | 1,727 |
Operating income |  | 335 |  |  | 248 |  |  | 340 |  |  | 307 |
Income From Continuing Operations |  | 229 |  |  | 129 |  |  | 198 |  |  | 138 |
Income From Discontinued Operations, Net of Tax |  | 14 |  |  | 8 |  |  | 12 |  |  | 24 |
Net income |  | 243 |  |  | 137 |  |  | 210 |  |  | 162 |
Income (loss) attributable to noncontrolling interests |  | — |  |  | 1 |  |  | (8) |  |  | 4 |
Net income available to common stockholders |  | 243 |  |  | 136 |  |  | 218 |  |  | 158 |
Basic earnings per average common share |  |  |  |  |  |  |  |
Income from continuing operations per average common share available to common stockholders 1 |  | 0.81 |  |  | 0.45 |  |  | 0.72 |  |  | 0.47 |
Income from discontinued operations per average common share available to common stockholders 1 |  | 0.05 |  |  | 0.03 |  |  | 0.04 |  |  | 0.08 |
Basic earnings per average common share 1 |  | 0.86 |  |  | 0.48 |  |  | 0.76 |  |  | 0.55 |
Diluted earnings per average common share |  |  |  |  |  |  |  |
Income from continuing operations per average common share available to common stockholders 1 |  | 0.80 |  |  | 0.45 |  |  | 0.72 |  |  | 0.47 |
Income from discontinued operations per average common share available to common stockholders 1 |  | 0.05 |  |  | 0.03 |  |  | 0.04 |  |  | 0.08 |
Diluted earnings per average common share 1 |  | 0.85 |  |  | 0.48 |  |  | 0.76 |  |  | 0.55 |
1 The sum of the quarters may not equal annual EPS due to changes in the number of shares outstanding.

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- Definition The entire disclosure for quarterly financial data. Includes, but is not limited to, tabular presentation of financial information for fiscal quarters, effect of year-end adjustments, and an explanation of matters or transactions that affect comparability of the information. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 270 -URI http://asc.fasb.org/topic&trid=2126967 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 270 -SubTopic 10 -Section 50 -Paragraph 1B -URI http://asc.fasb.org/extlink&oid=124502072&loc=SL124452896-108306 + Details
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