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Reportable Segments | 3 Months Ended
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Mar. 31, 2021
Segment Reporting Information [Line Items] |
Reportable Segments | Reportable SegmentsReportable segments consist of business units defined by the products and services they offer. CMS Energy and Consumers evaluate the performance of each segment based on its contribution to net income available to CMS Energy’s common stockholders. CMS Energy The segments reported for CMS Energy are: •electric utility, consisting of regulated activities associated with the generation, purchase, distribution, and sale of electricity in Michigan •gas utility, consisting of regulated activities associated with the purchase, transmission, storage, distribution, and sale of natural gas in Michigan •enterprises, consisting of various subsidiaries engaging in domestic independent power production, including the development and operation of renewable generation, and the marketing of independent power production •EnerBank, a Utah state-chartered, FDIC-insured industrial bank providing primarily unsecured, fixed-rate installment loans throughout the U.S. to finance home improvements CMS Energy presents corporate interest and other expenses and Consumers’ other consolidated entities within other reconciling items. Beginning in 2021, CMS Land, which holds the environmental remediation obligations at Bay Harbor, will be included within other reconciling items rather than within the enterprises segment. This change was not material and was made to align segment reporting with the legal organization and internal reporting of CMS Energy. Consumers The segments reported for Consumers are: •electric utility, consisting of regulated activities associated with the generation, purchase, distribution, and sale of electricity in Michigan •gas utility, consisting of regulated activities associated with the purchase, transmission, storage, distribution, and sale of natural gas in Michigan Consumers’ other consolidated entities are presented within other reconciling items. Presented in the following tables is financial information by segment:
In Millions
Three Months Ended March 31 |  |  |  | 2021 | 2020 |
CMS Energy, including Consumers |  |  |  |  |  |  |  |  |  |  |
Operating revenue |  |  |  |  |  |  |  |  |  |  |
Electric utility |  |  |  |  |  |  | $ | 1,134 |  |  | $ | 1,028 |  |  |
Gas utility |  |  |  |  |  |  | 803 |  |  | 716 |  |  |
Enterprises |  |  |  |  |  |  | 76 |  |  | 58 |  |  |
EnerBank |  |  |  |  |  |  | 70 |  |  | 62 |  |  |
Total operating revenue – CMS Energy |  |  |  |  |  |  | $ | 2,083 |  |  | $ | 1,864 |  |  |
Consumers |  |  |  |  |  |  |  |  |  |  |
Operating revenue |  |  |  |  |  |  |  |  |  |  |
Electric utility |  |  |  |  |  |  | $ | 1,134 |  |  | $ | 1,028 |  |  |
Gas utility |  |  |  |  |  |  | 803 |  |  | 716 |  |  |
Total operating revenue – Consumers |  |  |  |  |  |  | $ | 1,937 |  |  | $ | 1,744 |  |  |
CMS Energy, including Consumers |  |  |  |  |  |  |  |  |  |  |
Net income (loss) available to common stockholders |  |  |  |  |  |  |  |  |  |  |
Electric utility |  |  |  |  |  |  | $ | 155 |  |  | $ | 118 |  |  |
Gas utility |  |  |  |  |  |  | 181 |  |  | 117 |  |  |
Enterprises |  |  |  |  |  |  | 14 |  |  | 20 |  |  |
EnerBank |  |  |  |  |  |  | 33 |  |  | 14 |  |  |
Other reconciling items |  |  |  |  |  |  | (34) |  |  | (26) |  |  |
Total net income available to common stockholders – CMS Energy |  |  |  |  |  |  | $ | 349 |  |  | $ | 243 |  |  |
Consumers |  |  |  |  |  |  |  |  |  |  |
Net income available to common stockholder |  |  |  |  |  |  |  |  |  |  |
Electric utility |  |  |  |  |  |  | $ | 155 |  |  | $ | 118 |  |  |
Gas utility |  |  |  |  |  |  | 181 |  |  | 117 |  |  |
Total net income available to common stockholder – Consumers |  |  |  |  |  |  | $ | 336 |  |  | $ | 235 |  |  |
In Millions
| March 31, 2021 | December 31, 2020 |
CMS Energy, including Consumers |  |  |  |  |  |
Plant, property, and equipment, gross |  |  |  |  |  |
Electric utility 1 |  | $ | 17,574 |  |  | $ | 17,155 |  |  |
Gas utility 1 |  | 9,703 |  |  | 9,581 |  |  |
Enterprises |  | 1,118 |  |  | 1,113 |  |  |
EnerBank |  | 40 |  |  | 37 |  |  |
Other reconciling items |  | 22 |  |  | 21 |  |  |
Total plant, property, and equipment, gross – CMS Energy |  | $ | 28,457 |  |  | $ | 27,907 |  |  |
Consumers |  |  |  |  |  |
Plant, property, and equipment, gross |  |  |  |  |  |
Electric utility 1 |  | $ | 17,574 |  |  | $ | 17,155 |  |  |
Gas utility 1 |  | 9,703 |  |  | 9,581 |  |  |
Other reconciling items |  | 22 |  |  | 21 |  |  |
Total plant, property, and equipment, gross – Consumers |  | $ | 27,299 |  |  | $ | 26,757 |  |  |
CMS Energy, including Consumers |  |  |  |  |  |
Total assets |  |  |  |  |  |
Electric utility 1 |  | $ | 15,906 |  |  | $ | 15,829 |  |  |
Gas utility 1 |  | 9,244 |  |  | 9,429 |  |  |
Enterprises |  | 1,275 |  |  | 1,276 |  |  |
EnerBank |  | 3,073 |  |  | 3,109 |  |  |
Other reconciling items |  | 225 |  |  | 23 |  |  |
Total assets – CMS Energy |  | $ | 29,723 |  |  | $ | 29,666 |  |  |
Consumers |  |  |  |  |  |
Total assets |  |  |  |  |  |
Electric utility 1 |  | $ | 15,969 |  |  | $ | 15,893 |  |  |
Gas utility 1 |  | 9,292 |  |  | 9,477 |  |  |
Other reconciling items |  | 19 |  |  | 29 |  |  |
Total assets – Consumers |  | $ | 25,280 |  |  | $ | 25,399 |  |  |
1 Amounts include a portion of Consumers’ other common assets attributable to both the electric and gas utility businesses.
Consumers Energy Company |
Segment Reporting Information [Line Items] |
Reportable Segments | Reportable SegmentsReportable segments consist of business units defined by the products and services they offer. CMS Energy and Consumers evaluate the performance of each segment based on its contribution to net income available to CMS Energy’s common stockholders. CMS Energy The segments reported for CMS Energy are: •electric utility, consisting of regulated activities associated with the generation, purchase, distribution, and sale of electricity in Michigan •gas utility, consisting of regulated activities associated with the purchase, transmission, storage, distribution, and sale of natural gas in Michigan •enterprises, consisting of various subsidiaries engaging in domestic independent power production, including the development and operation of renewable generation, and the marketing of independent power production •EnerBank, a Utah state-chartered, FDIC-insured industrial bank providing primarily unsecured, fixed-rate installment loans throughout the U.S. to finance home improvements CMS Energy presents corporate interest and other expenses and Consumers’ other consolidated entities within other reconciling items. Beginning in 2021, CMS Land, which holds the environmental remediation obligations at Bay Harbor, will be included within other reconciling items rather than within the enterprises segment. This change was not material and was made to align segment reporting with the legal organization and internal reporting of CMS Energy. Consumers The segments reported for Consumers are: •electric utility, consisting of regulated activities associated with the generation, purchase, distribution, and sale of electricity in Michigan •gas utility, consisting of regulated activities associated with the purchase, transmission, storage, distribution, and sale of natural gas in Michigan Consumers’ other consolidated entities are presented within other reconciling items. Presented in the following tables is financial information by segment:
In Millions
Three Months Ended March 31 |  |  |  | 2021 | 2020 |
CMS Energy, including Consumers |  |  |  |  |  |  |  |  |  |  |
Operating revenue |  |  |  |  |  |  |  |  |  |  |
Electric utility |  |  |  |  |  |  | $ | 1,134 |  |  | $ | 1,028 |  |  |
Gas utility |  |  |  |  |  |  | 803 |  |  | 716 |  |  |
Enterprises |  |  |  |  |  |  | 76 |  |  | 58 |  |  |
EnerBank |  |  |  |  |  |  | 70 |  |  | 62 |  |  |
Total operating revenue – CMS Energy |  |  |  |  |  |  | $ | 2,083 |  |  | $ | 1,864 |  |  |
Consumers |  |  |  |  |  |  |  |  |  |  |
Operating revenue |  |  |  |  |  |  |  |  |  |  |
Electric utility |  |  |  |  |  |  | $ | 1,134 |  |  | $ | 1,028 |  |  |
Gas utility |  |  |  |  |  |  | 803 |  |  | 716 |  |  |
Total operating revenue – Consumers |  |  |  |  |  |  | $ | 1,937 |  |  | $ | 1,744 |  |  |
CMS Energy, including Consumers |  |  |  |  |  |  |  |  |  |  |
Net income (loss) available to common stockholders |  |  |  |  |  |  |  |  |  |  |
Electric utility |  |  |  |  |  |  | $ | 155 |  |  | $ | 118 |  |  |
Gas utility |  |  |  |  |  |  | 181 |  |  | 117 |  |  |
Enterprises |  |  |  |  |  |  | 14 |  |  | 20 |  |  |
EnerBank |  |  |  |  |  |  | 33 |  |  | 14 |  |  |
Other reconciling items |  |  |  |  |  |  | (34) |  |  | (26) |  |  |
Total net income available to common stockholders – CMS Energy |  |  |  |  |  |  | $ | 349 |  |  | $ | 243 |  |  |
Consumers |  |  |  |  |  |  |  |  |  |  |
Net income available to common stockholder |  |  |  |  |  |  |  |  |  |  |
Electric utility |  |  |  |  |  |  | $ | 155 |  |  | $ | 118 |  |  |
Gas utility |  |  |  |  |  |  | 181 |  |  | 117 |  |  |
Total net income available to common stockholder – Consumers |  |  |  |  |  |  | $ | 336 |  |  | $ | 235 |  |  |
In Millions
| March 31, 2021 | December 31, 2020 |
CMS Energy, including Consumers |  |  |  |  |  |
Plant, property, and equipment, gross |  |  |  |  |  |
Electric utility 1 |  | $ | 17,574 |  |  | $ | 17,155 |  |  |
Gas utility 1 |  | 9,703 |  |  | 9,581 |  |  |
Enterprises |  | 1,118 |  |  | 1,113 |  |  |
EnerBank |  | 40 |  |  | 37 |  |  |
Other reconciling items |  | 22 |  |  | 21 |  |  |
Total plant, property, and equipment, gross – CMS Energy |  | $ | 28,457 |  |  | $ | 27,907 |  |  |
Consumers |  |  |  |  |  |
Plant, property, and equipment, gross |  |  |  |  |  |
Electric utility 1 |  | $ | 17,574 |  |  | $ | 17,155 |  |  |
Gas utility 1 |  | 9,703 |  |  | 9,581 |  |  |
Other reconciling items |  | 22 |  |  | 21 |  |  |
Total plant, property, and equipment, gross – Consumers |  | $ | 27,299 |  |  | $ | 26,757 |  |  |
CMS Energy, including Consumers |  |  |  |  |  |
Total assets |  |  |  |  |  |
Electric utility 1 |  | $ | 15,906 |  |  | $ | 15,829 |  |  |
Gas utility 1 |  | 9,244 |  |  | 9,429 |  |  |
Enterprises |  | 1,275 |  |  | 1,276 |  |  |
EnerBank |  | 3,073 |  |  | 3,109 |  |  |
Other reconciling items |  | 225 |  |  | 23 |  |  |
Total assets – CMS Energy |  | $ | 29,723 |  |  | $ | 29,666 |  |  |
Consumers |  |  |  |  |  |
Total assets |  |  |  |  |  |
Electric utility 1 |  | $ | 15,969 |  |  | $ | 15,893 |  |  |
Gas utility 1 |  | 9,292 |  |  | 9,477 |  |  |
Other reconciling items |  | 19 |  |  | 29 |  |  |
Total assets – Consumers |  | $ | 25,280 |  |  | $ | 25,399 |  |  |
1 Amounts include a portion of Consumers’ other common assets attributable to both the electric and gas utility businesses.

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