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Reportable Segments
 12 Months Ended
Dec. 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.
Accounting policies for CMS Energy’s and Consumers’ segments are as described in Note 1, Significant Accounting Policies. The consolidated financial statements reflect the assets, liabilities, revenues, and expenses of the individual segments when appropriate. Accounts are allocated among the segments when common accounts are attributable to more than one segment. The allocations are based on certain measures of business activities, such as revenue, labor dollars, customers, other operating and maintenance expense, construction expense, leased property, taxes, or functional surveys. For example, customer receivables are allocated based on revenue, and pension provisions are allocated based on labor dollars.
Inter-segment sales and transfers are accounted for at current market prices and are eliminated in consolidated net income available to common stockholders by segment. Inter-segment sales and transfers were immaterial for all periods presented.
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
On October 1, 2021, EnerBank was acquired by Regions Bank. As a result, EnerBank is no longer included in the composition of CMS Energy’s reportable segments. 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, 2020, and 2019. The assets and liabilities of EnerBank are presented as held for sale on CMS Energy’s consolidated balance sheet at December 31, 2020. For information regarding the sale of EnerBank, see Note 20, 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
Years Ended December 31202120202019
CMS Energy, including Consumers
Operating revenue
Electric utility$4,958 $4,372 $4,439 
Gas utility2,063 1,817 1,937 
Enterprises308 229 248 
Total operating revenue – CMS Energy$7,329 $6,418 $6,624 
Consumers
Operating revenue
Electric utility$4,958 $4,372 $4,439 
Gas utility2,063 1,817 1,937 
Total operating revenue – Consumers$7,021 $6,189 $6,376 
CMS Energy, including Consumers
Depreciation and amortization
Electric utility$772 $739 $713 
Gas utility304 283 261 
Enterprises37 20 14 
Other reconciling items1 1 1 
Total depreciation and amortization – CMS Energy$1,114 $1,043 $989 
Consumers
Depreciation and amortization
Electric utility$772 $739 $713 
Gas utility304 283 261 
Other reconciling items1 1 1 
Total depreciation and amortization – Consumers$1,077 $1,023 $975 
In Millions
Years Ended December 31202120202019
CMS Energy, including Consumers
Income from equity method investees1
Enterprises$10 $5 $10 
Total income from equity method investees – CMS Energy$10 $5 $10 
CMS Energy, including Consumers
Interest charges
Electric utility$207 $217 $213 
Gas utility104 102 83 
Enterprises6 7 7 
Other reconciling items183 179 157 
Total interest charges – CMS Energy$500 $505 $460 
Consumers
Interest charges
Electric utility$207 $217 $213 
Gas utility104 102 83 
Other reconciling items— 1 1 
Total interest charges – Consumers$311 $320 $297 
CMS Energy, including Consumers
Income tax expense (benefit)
Electric utility$117 $115 $134 
Gas utility39 58 51 
Enterprises(2)(4)2 
Other reconciling items(59)(54)(56)
Total income tax expense – CMS Energy$95 $115 $131 
Consumers
Income tax expense
Electric utility$117 $115 $134 
Gas utility39 58 51 
Total income tax expense – Consumers$156 $173 $185 
In Millions
Years Ended December 31202120202019
CMS Energy, including Consumers
Net income (loss) available to common stockholders
Electric utility$565 $554 $509 
Gas utility302 261 233 
Enterprises23 36 33 
Other reconciling items458 (96)(95)
Total net income available to common stockholders – CMS Energy$1,348 $755 $680 
Consumers
Net income (loss) available to common stockholder
Electric utility$565 $554 $509 
Gas utility302 261 233 
Other reconciling items(1)(1)(1)
Total net income available to common stockholder – Consumers$866 $814 $741 
CMS Energy, including Consumers
Plant, property, and equipment, gross
Electric utility2
$18,147 $17,155 $16,158 
Gas utility2
10,601 9,581 8,785 
Enterprises1,122 1,113 405 
Other reconciling items23 21 20 
Total plant, property, and equipment, gross – CMS Energy$29,893 $27,870 $25,368 
Consumers
Plant, property, and equipment, gross
Electric utility2
$18,147 $17,155 $16,158 
Gas utility2
10,601 9,581 8,785 
Other reconciling items23 21 20 
Total plant, property, and equipment, gross – Consumers$28,771 $26,757 $24,963 
CMS Energy, including Consumers
Investments in equity method investees1
Enterprises$71 $70 $71 
Total investments in equity method investees – CMS Energy$71 $70 $71 
In Millions
Years Ended December 31202120202019
CMS Energy, including Consumers
Total assets
Electric utility2
$16,493 $15,829 $14,911 
Gas utility2
10,517 9,429 8,659 
Enterprises1,312 1,276 527 
Other reconciling items431 3,132 2,740 
Total assets – CMS Energy$28,753 $29,666 $26,837 
Consumers
Total assets
Electric utility2
$16,555 $15,893 $14,973 
Gas utility2
10,564 9,477 8,706 
Other reconciling items21 29 20 
Total assets – Consumers$27,140 $25,399 $23,699 
CMS Energy, including Consumers
Capital expenditures3
Electric utility4
$1,153 $1,281 $1,162 
Gas utility4
989 885 971 
Enterprises17 108 5 
Other reconciling items2 1 1 
Total capital expenditures – CMS Energy$2,161 $2,275 $2,139 
Consumers
Capital expenditures3
Electric utility4
$1,153 $1,281 $1,162 
Gas utility4
989 885 971 
Other reconciling items2 1 1 
Total capital expenditures – Consumers$2,144 $2,167 $2,134 
1Consumers had no significant equity method investments.
2Amounts include a portion of Consumers’ other common assets attributable to both the electric and gas utility businesses.
3Amounts include assets placed under finance lease.
4Amounts include a portion of Consumers’ capital expenditures for plant and equipment 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.
Accounting policies for CMS Energy’s and Consumers’ segments are as described in Note 1, Significant Accounting Policies. The consolidated financial statements reflect the assets, liabilities, revenues, and expenses of the individual segments when appropriate. Accounts are allocated among the segments when common accounts are attributable to more than one segment. The allocations are based on certain measures of business activities, such as revenue, labor dollars, customers, other operating and maintenance expense, construction expense, leased property, taxes, or functional surveys. For example, customer receivables are allocated based on revenue, and pension provisions are allocated based on labor dollars.
Inter-segment sales and transfers are accounted for at current market prices and are eliminated in consolidated net income available to common stockholders by segment. Inter-segment sales and transfers were immaterial for all periods presented.
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
On October 1, 2021, EnerBank was acquired by Regions Bank. As a result, EnerBank is no longer included in the composition of CMS Energy’s reportable segments. 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, 2020, and 2019. The assets and liabilities of EnerBank are presented as held for sale on CMS Energy’s consolidated balance sheet at December 31, 2020. For information regarding the sale of EnerBank, see Note 20, 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
Years Ended December 31202120202019
CMS Energy, including Consumers
Operating revenue
Electric utility$4,958 $4,372 $4,439 
Gas utility2,063 1,817 1,937 
Enterprises308 229 248 
Total operating revenue – CMS Energy$7,329 $6,418 $6,624 
Consumers
Operating revenue
Electric utility$4,958 $4,372 $4,439 
Gas utility2,063 1,817 1,937 
Total operating revenue – Consumers$7,021 $6,189 $6,376 
CMS Energy, including Consumers
Depreciation and amortization
Electric utility$772 $739 $713 
Gas utility304 283 261 
Enterprises37 20 14 
Other reconciling items1 1 1 
Total depreciation and amortization – CMS Energy$1,114 $1,043 $989 
Consumers
Depreciation and amortization
Electric utility$772 $739 $713 
Gas utility304 283 261 
Other reconciling items1 1 1 
Total depreciation and amortization – Consumers$1,077 $1,023 $975 
In Millions
Years Ended December 31202120202019
CMS Energy, including Consumers
Income from equity method investees1
Enterprises$10 $5 $10 
Total income from equity method investees – CMS Energy$10 $5 $10 
CMS Energy, including Consumers
Interest charges
Electric utility$207 $217 $213 
Gas utility104 102 83 
Enterprises6 7 7 
Other reconciling items183 179 157 
Total interest charges – CMS Energy$500 $505 $460 
Consumers
Interest charges
Electric utility$207 $217 $213 
Gas utility104 102 83 
Other reconciling items— 1 1 
Total interest charges – Consumers$311 $320 $297 
CMS Energy, including Consumers
Income tax expense (benefit)
Electric utility$117 $115 $134 
Gas utility39 58 51 
Enterprises(2)(4)2 
Other reconciling items(59)(54)(56)
Total income tax expense – CMS Energy$95 $115 $131 
Consumers
Income tax expense
Electric utility$117 $115 $134 
Gas utility39 58 51 
Total income tax expense – Consumers$156 $173 $185 
In Millions
Years Ended December 31202120202019
CMS Energy, including Consumers
Net income (loss) available to common stockholders
Electric utility$565 $554 $509 
Gas utility302 261 233 
Enterprises23 36 33 
Other reconciling items458 (96)(95)
Total net income available to common stockholders – CMS Energy$1,348 $755 $680 
Consumers
Net income (loss) available to common stockholder
Electric utility$565 $554 $509 
Gas utility302 261 233 
Other reconciling items(1)(1)(1)
Total net income available to common stockholder – Consumers$866 $814 $741 
CMS Energy, including Consumers
Plant, property, and equipment, gross
Electric utility2
$18,147 $17,155 $16,158 
Gas utility2
10,601 9,581 8,785 
Enterprises1,122 1,113 405 
Other reconciling items23 21 20 
Total plant, property, and equipment, gross – CMS Energy$29,893 $27,870 $25,368 
Consumers
Plant, property, and equipment, gross
Electric utility2
$18,147 $17,155 $16,158 
Gas utility2
10,601 9,581 8,785 
Other reconciling items23 21 20 
Total plant, property, and equipment, gross – Consumers$28,771 $26,757 $24,963 
CMS Energy, including Consumers
Investments in equity method investees1
Enterprises$71 $70 $71 
Total investments in equity method investees – CMS Energy$71 $70 $71 
In Millions
Years Ended December 31202120202019
CMS Energy, including Consumers
Total assets
Electric utility2
$16,493 $15,829 $14,911 
Gas utility2
10,517 9,429 8,659 
Enterprises1,312 1,276 527 
Other reconciling items431 3,132 2,740 
Total assets – CMS Energy$28,753 $29,666 $26,837 
Consumers
Total assets
Electric utility2
$16,555 $15,893 $14,973 
Gas utility2
10,564 9,477 8,706 
Other reconciling items21 29 20 
Total assets – Consumers$27,140 $25,399 $23,699 
CMS Energy, including Consumers
Capital expenditures3
Electric utility4
$1,153 $1,281 $1,162 
Gas utility4
989 885 971 
Enterprises17 108 5 
Other reconciling items2 1 1 
Total capital expenditures – CMS Energy$2,161 $2,275 $2,139 
Consumers
Capital expenditures3
Electric utility4
$1,153 $1,281 $1,162 
Gas utility4
989 885 971 
Other reconciling items2 1 1 
Total capital expenditures – Consumers$2,144 $2,167 $2,134 
1Consumers had no significant equity method investments.
2Amounts include a portion of Consumers’ other common assets attributable to both the electric and gas utility businesses.
3Amounts include assets placed under finance lease.
4Amounts include a portion of Consumers’ capital expenditures for plant and equipment attributable to both the electric and gas utility businesses.