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Reportable Segments
 9 Months Ended
Sep. 30, 2023
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
•NorthStar Clean Energy, 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
CMS Energy presents corporate interest and other expenses, discontinued operations, and Consumers’ other consolidated entities within other reconciling items.
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 EndedNine Months Ended
September 302023202220232022
CMS Energy, including Consumers
Operating revenue
Electric utility$1,351 $1,594 $3,570 $4,160 
Gas utility244 292 1,720 1,811 
NorthStar Clean Energy78 138 222 347 
Total operating revenue – CMS Energy$1,673 $2,024 $5,512 $6,318 
Consumers
Operating revenue
Electric utility$1,351 $1,594 $3,570 $4,160 
Gas utility244 292 1,720 1,811 
Other reconciling items1 — 1 — 
Total operating revenue – Consumers$1,596 $1,886 $5,291 $5,971 
CMS Energy, including Consumers
Net income (loss) available to common stockholders
Electric utility$187 $194 $404 $501 
Gas utility4 (13)181 239 
NorthStar Clean Energy16 11 26 26 
Other reconciling items(33)(29)(40)(107)
Total net income available to common stockholders – CMS Energy$174 $163 $571 $659 
Consumers
Net income (loss) available to common stockholder
Electric utility$187 $194 $404 $501 
Gas utility4 (13)181 239 
Other reconciling items(13)8 (9)4 
Total net income available to common stockholder – Consumers$178 $189 $576 $744 
In Millions
September 30, 2023December 31, 2022
CMS Energy, including Consumers
Plant, property, and equipment, gross
Electric utility1
$18,802 $17,870 
Gas utility1
11,985 11,443 
NorthStar Clean Energy1,179 1,148 
Other reconciling items31 30 
Total plant, property, and equipment, gross – CMS Energy$31,997 $30,491 
Consumers
Plant, property, and equipment, gross
Electric utility1
$18,802 $17,870 
Gas utility1
11,985 11,443 
Other reconciling items38 29 
Total plant, property, and equipment, gross – Consumers$30,825 $29,342 
CMS Energy, including Consumers
Total assets
Electric utility1
$18,856 $17,907 
Gas utility1
11,934 11,873 
NorthStar Clean Energy1,575 1,464 
Other reconciling items148 109 
Total assets – CMS Energy$32,513 $31,353 
Consumers
Total assets
Electric utility1
$18,915 $17,968 
Gas utility1
11,979 11,918 
Other reconciling items47 30 
Total assets – Consumers$30,941 $29,916 
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
•NorthStar Clean Energy, 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
CMS Energy presents corporate interest and other expenses, discontinued operations, and Consumers’ other consolidated entities within other reconciling items.
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 EndedNine Months Ended
September 302023202220232022
CMS Energy, including Consumers
Operating revenue
Electric utility$1,351 $1,594 $3,570 $4,160 
Gas utility244 292 1,720 1,811 
NorthStar Clean Energy78 138 222 347 
Total operating revenue – CMS Energy$1,673 $2,024 $5,512 $6,318 
Consumers
Operating revenue
Electric utility$1,351 $1,594 $3,570 $4,160 
Gas utility244 292 1,720 1,811 
Other reconciling items1 — 1 — 
Total operating revenue – Consumers$1,596 $1,886 $5,291 $5,971 
CMS Energy, including Consumers
Net income (loss) available to common stockholders
Electric utility$187 $194 $404 $501 
Gas utility4 (13)181 239 
NorthStar Clean Energy16 11 26 26 
Other reconciling items(33)(29)(40)(107)
Total net income available to common stockholders – CMS Energy$174 $163 $571 $659 
Consumers
Net income (loss) available to common stockholder
Electric utility$187 $194 $404 $501 
Gas utility4 (13)181 239 
Other reconciling items(13)8 (9)4 
Total net income available to common stockholder – Consumers$178 $189 $576 $744 
In Millions
September 30, 2023December 31, 2022
CMS Energy, including Consumers
Plant, property, and equipment, gross
Electric utility1
$18,802 $17,870 
Gas utility1
11,985 11,443 
NorthStar Clean Energy1,179 1,148 
Other reconciling items31 30 
Total plant, property, and equipment, gross – CMS Energy$31,997 $30,491 
Consumers
Plant, property, and equipment, gross
Electric utility1
$18,802 $17,870 
Gas utility1
11,985 11,443 
Other reconciling items38 29 
Total plant, property, and equipment, gross – Consumers$30,825 $29,342 
CMS Energy, including Consumers
Total assets
Electric utility1
$18,856 $17,907 
Gas utility1
11,934 11,873 
NorthStar Clean Energy1,575 1,464 
Other reconciling items148 109 
Total assets – CMS Energy$32,513 $31,353 
Consumers
Total assets
Electric utility1
$18,915 $17,968 
Gas utility1
11,979 11,918 
Other reconciling items47 30 
Total assets – Consumers$30,941 $29,916 
1Amounts include a portion of Consumers’ other common assets attributable to both the electric and gas utility businesses.