Reportable Segments

9 Months Ended

Sep. 30, 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

In June 2021, CMS Energy entered into an agreement for EnerBank to merge with Regions Bank. The merger was completed on October 1, 2021. As a result, EnerBank is not included in the composition of CMS Energy’s reportable segments. EnerBank’s results of operations are presented as income from discontinued operations on CMS Energy’s consolidated statements of income for the three and nine months ended September 30, 2021 and 2020. The assets and liabilities of EnerBank are presented as held for sale on CMS Energy’s consolidated balance sheets at September 30, 2021 and December 31, 2020. For information regarding the merger of EnerBank, see Note 13, Exit Activities and Discontinued Operations.

CMS Energy presents corporate interest and other expenses, discontinued operations, 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						Nine Months Ended
September 30	2021			2020			2021			2020
CMS Energy, including Consumers
Operating revenue
Electric utility		$	1,419		$	1,257		$	3,713		$	3,307
Gas utility		225			193			1,361			1,217
Enterprises		81			57			222			167
Total operating revenue – CMS Energy		$	1,725		$	1,507		$	5,296		$	4,691
Consumers
Operating revenue
Electric utility		$	1,419		$	1,257		$	3,713		$	3,307
Gas utility		225			193			1,361			1,217
Total operating revenue – Consumers		$	1,644		$	1,450		$	5,074		$	4,524
CMS Energy, including Consumers
Net income (loss) available to common stockholders
Electric utility		$	195		$	226		$	504		$	463
Gas utility		(9)			4			208			162
Enterprises		7			13			26			34
Other reconciling items		(7)			(25)			(27)			(62)
Total net income available to common stockholders – CMS Energy		$	186		$	218		$	711		$	597
Consumers
Net income (loss) available to common stockholder
Electric utility		$	195		$	226		$	504		$	463
Gas utility		(9)			4			208			162
Other reconciling items		—			—			(1)			(1)
Total net income available to common stockholder – Consumers		$	186		$	230		$	711		$	624

In Millions
	September 30, 2021			December 31, 2020
CMS Energy, including Consumers
Plant, property, and equipment, gross
Electric utility1		$	17,992		$	17,155
Gas utility1		10,317			9,581
Enterprises		1,119			1,113
Other reconciling items		22			21
Total plant, property, and equipment, gross – CMS Energy		$	29,450		$	27,870
Consumers
Plant, property, and equipment, gross
Electric utility1		$	17,992		$	17,155
Gas utility1		10,317			9,581
Other reconciling items		22			21
Total plant, property, and equipment, gross – Consumers		$	28,331		$	26,757
CMS Energy, including Consumers
Total assets
Electric utility1		$	16,092		$	15,829
Gas utility1		9,969			9,429
Enterprises		1,275			1,276
Other reconciling items		3,177			3,132
Total assets – CMS Energy		$	30,513		$	29,666
Consumers
Total assets
Electric utility1		$	16,154		$	15,893
Gas utility1		10,017			9,477
Other reconciling items		18			29
Total assets – Consumers		$	26,189		$	25,399

1Amounts 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

In June 2021, CMS Energy entered into an agreement for EnerBank to merge with Regions Bank. The merger was completed on October 1, 2021. As a result, EnerBank is not included in the composition of CMS Energy’s reportable segments. EnerBank’s results of operations are presented as income from discontinued operations on CMS Energy’s consolidated statements of income for the three and nine months ended September 30, 2021 and 2020. The assets and liabilities of EnerBank are presented as held for sale on CMS Energy’s consolidated balance sheets at September 30, 2021 and December 31, 2020. For information regarding the merger of EnerBank, see Note 13, Exit Activities and Discontinued Operations.

CMS Energy presents corporate interest and other expenses, discontinued operations, 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						Nine Months Ended
September 30	2021			2020			2021			2020
CMS Energy, including Consumers
Operating revenue
Electric utility		$	1,419		$	1,257		$	3,713		$	3,307
Gas utility		225			193			1,361			1,217
Enterprises		81			57			222			167
Total operating revenue – CMS Energy		$	1,725		$	1,507		$	5,296		$	4,691
Consumers
Operating revenue
Electric utility		$	1,419		$	1,257		$	3,713		$	3,307
Gas utility		225			193			1,361			1,217
Total operating revenue – Consumers		$	1,644		$	1,450		$	5,074		$	4,524
CMS Energy, including Consumers
Net income (loss) available to common stockholders
Electric utility		$	195		$	226		$	504		$	463
Gas utility		(9)			4			208			162
Enterprises		7			13			26			34
Other reconciling items		(7)			(25)			(27)			(62)
Total net income available to common stockholders – CMS Energy		$	186		$	218		$	711		$	597
Consumers
Net income (loss) available to common stockholder
Electric utility		$	195		$	226		$	504		$	463
Gas utility		(9)			4			208			162
Other reconciling items		—			—			(1)			(1)
Total net income available to common stockholder – Consumers		$	186		$	230		$	711		$	624

In Millions
	September 30, 2021			December 31, 2020
CMS Energy, including Consumers
Plant, property, and equipment, gross
Electric utility1		$	17,992		$	17,155
Gas utility1		10,317			9,581
Enterprises		1,119			1,113
Other reconciling items		22			21
Total plant, property, and equipment, gross – CMS Energy		$	29,450		$	27,870
Consumers
Plant, property, and equipment, gross
Electric utility1		$	17,992		$	17,155
Gas utility1		10,317			9,581
Other reconciling items		22			21
Total plant, property, and equipment, gross – Consumers		$	28,331		$	26,757
CMS Energy, including Consumers
Total assets
Electric utility1		$	16,092		$	15,829
Gas utility1		9,969			9,429
Enterprises		1,275			1,276
Other reconciling items		3,177			3,132
Total assets – CMS Energy		$	30,513		$	29,666
Consumers
Total assets
Electric utility1		$	16,154		$	15,893
Gas utility1		10,017			9,477
Other reconciling items		18			29
Total assets – Consumers		$	26,189		$	25,399

1Amounts include a portion of Consumers’ other common assets attributable to both the electric and gas utility businesses.