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Reportable Segments | 3 Months Ended
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Mar. 31, 2016
Reportable Segments | 1 1:Reportable Segments Reportable 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 reportable segments for CMS Energy are:
| · |  | electric utility, consisting of regulated activities associated with the generation, transmission, and distribution of electricity in Michigan
| · |  | gas utility, consisting of regulated activities associated with the transportation, storage, and distribution of natural gas in Michigan
| · |  | enterprises, consisting of various subsidiaries engaging primarily in domestic independent power production
CMS Energy presents EnerBank and corporate interest and other expenses within other reconciling items. Consumers The reportable segments for Consumers are:
| · |  | electric utility, consisting of regulated activities associated with the generation, transmission, and distribution of electricity in Michigan
| · |  | gas utility, consisting of regulated activities associated with the transportation, storage, and distribution of natural gas in Michigan
Consumers’ other consolidated entities are presented within other reconciling items. Presented in the following tables is financial information by reportable segment:
﻿ |  |  |  |  |  |  |
﻿ |  |  |  |  |  |  |
﻿In Millions
﻿Three Months Ended March 31 | 2016 | 2015 |
﻿CMS Energy, including Consumers |  |  |  |  |  |  |
﻿Operating revenue |  |  |  |  |  |  |
﻿Electric utility |  | $ | 1,013 |  | $ | 1,033 |
﻿Gas utility |  |  | 710 |  |  | 995 |
﻿Enterprises |  |  | 48 |  |  | 60 |
﻿Other reconciling items |  |  | 30 |  |  | 23 |
﻿Total operating revenue – CMS Energy |  | $ | 1,801 |  | $ | 2,111 |
﻿Consumers |  |  |  |  |  |  |
﻿Operating revenue |  |  |  |  |  |  |
﻿Electric utility |  | $ | 1,013 |  | $ | 1,033 |
﻿Gas utility |  |  | 710 |  |  | 995 |
﻿Total operating revenue – Consumers |  | $ | 1,723 |  | $ | 2,028 |
﻿CMS Energy, including Consumers |  |  |  |  |  |  |
﻿Net income (loss) available to common stockholders |  |  |  |  |  |  |
﻿Electric utility |  | $ | 91 |  | $ | 94 |
﻿Gas utility |  |  | 81 |  |  | 121 |
﻿Enterprises |  |  | 6 |  |  | 7 |
﻿Other reconciling items |  |  | (14) |  |  | (20) |
﻿Total net income available to common stockholders – CMS Energy |  | $ | 164 |  | $ | 202 |
﻿Consumers |  |  |  |  |  |  |
﻿Net income available to common stockholder |  |  |  |  |  |  |
﻿Electric utility |  | $ | 91 |  | $ | 94 |
﻿Gas utility |  |  | 81 |  |  | 121 |
﻿Total net income available to common stockholder – Consumers |  | $ | 172 |  | $ | 215 |
﻿
﻿ |  |  |  |  |  |  |
﻿ |  |  |  |  |  |  |
﻿In Millions
﻿ | March 31, 2016 | December 31, 2015 |
﻿CMS Energy, including Consumers |  |  |  |  |  |  |
﻿Plant, property, and equipment, gross |  |  |  |  |  |  |
﻿Electric utility 1 |  | $ | 13,331 |  | $ | 13,059 |
﻿Gas utility 1 |  |  | 5,819 |  |  | 5,723 |
﻿Enterprises |  |  | 159 |  |  | 120 |
﻿Other reconciling items |  |  | 25 |  |  | 41 |
﻿Total plant, property, and equipment, gross – CMS Energy |  | $ | 19,334 |  | $ | 18,943 |
﻿Consumers |  |  |  |  |  |  |
﻿Plant, property, and equipment, gross |  |  |  |  |  |  |
﻿Electric utility 1 |  | $ | 13,331 |  | $ | 13,059 |
﻿Gas utility 1 |  |  | 5,819 |  |  | 5,723 |
﻿Other reconciling items |  |  | 15 |  |  | 15 |
﻿Total plant, property, and equipment, gross – Consumers |  | $ | 19,165 |  | $ | 18,797 |
﻿CMS Energy, including Consumers |  |  |  |  |  |  |
﻿Total assets |  |  |  |  |  |  |
﻿Electric utility 1 |  | $ | 12,743 |  | $ | 12,660 |
﻿Gas utility 1 |  |  | 5,624 |  |  | 5,912 |
﻿Enterprises |  |  | 261 |  |  | 270 |
﻿Other reconciling items |  |  | 1,409 |  |  | 1,457 |
﻿Total assets – CMS Energy 2 |  | $ | 20,037 |  | $ | 20,299 |
﻿Consumers |  |  |  |  |  |  |
﻿Total assets |  |  |  |  |  |  |
﻿Electric utility 1 |  | $ | 12,744 |  | $ | 12,660 |
﻿Gas utility 1 |  |  | 5,624 |  |  | 5,912 |
﻿Other reconciling items |  |  | 54 |  |  | 63 |
﻿Total assets – Consumers 2 |  | $ | 18,422 |  | $ | 18,635 |
﻿
| 1 |  | Amounts include a portion of Consumers’ other common assets attributable to both the electric and gas utility businesses.
| 2 |  | CMS Energy and Consumers changed the reporting of debt issuance costs on their consolidated balance sheets in accordance with ASU 2015-03, Simplifying the Presentation of Debt Issuance Costs, as of January 1, 2016, and retrospectively adjusted prior-period amounts for comparability. For further details on the implementation of this standard, see Note 1, New Accounting Standards.
Consumers Energy Company [Member] |
Reportable Segments | 1 1:Reportable Segments Reportable 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 reportable segments for CMS Energy are:
| · |  | electric utility, consisting of regulated activities associated with the generation, transmission, and distribution of electricity in Michigan
| · |  | gas utility, consisting of regulated activities associated with the transportation, storage, and distribution of natural gas in Michigan
| · |  | enterprises, consisting of various subsidiaries engaging primarily in domestic independent power production
CMS Energy presents EnerBank and corporate interest and other expenses within other reconciling items. Consumers The reportable segments for Consumers are:
| · |  | electric utility, consisting of regulated activities associated with the generation, transmission, and distribution of electricity in Michigan
| · |  | gas utility, consisting of regulated activities associated with the transportation, storage, and distribution of natural gas in Michigan
Consumers’ other consolidated entities are presented within other reconciling items. Presented in the following tables is financial information by reportable segment:
﻿ |  |  |  |  |  |  |
﻿ |  |  |  |  |  |  |
﻿In Millions
﻿Three Months Ended March 31 | 2016 | 2015 |
﻿CMS Energy, including Consumers |  |  |  |  |  |  |
﻿Operating revenue |  |  |  |  |  |  |
﻿Electric utility |  | $ | 1,013 |  | $ | 1,033 |
﻿Gas utility |  |  | 710 |  |  | 995 |
﻿Enterprises |  |  | 48 |  |  | 60 |
﻿Other reconciling items |  |  | 30 |  |  | 23 |
﻿Total operating revenue – CMS Energy |  | $ | 1,801 |  | $ | 2,111 |
﻿Consumers |  |  |  |  |  |  |
﻿Operating revenue |  |  |  |  |  |  |
﻿Electric utility |  | $ | 1,013 |  | $ | 1,033 |
﻿Gas utility |  |  | 710 |  |  | 995 |
﻿Total operating revenue – Consumers |  | $ | 1,723 |  | $ | 2,028 |
﻿CMS Energy, including Consumers |  |  |  |  |  |  |
﻿Net income (loss) available to common stockholders |  |  |  |  |  |  |
﻿Electric utility |  | $ | 91 |  | $ | 94 |
﻿Gas utility |  |  | 81 |  |  | 121 |
﻿Enterprises |  |  | 6 |  |  | 7 |
﻿Other reconciling items |  |  | (14) |  |  | (20) |
﻿Total net income available to common stockholders – CMS Energy |  | $ | 164 |  | $ | 202 |
﻿Consumers |  |  |  |  |  |  |
﻿Net income available to common stockholder |  |  |  |  |  |  |
﻿Electric utility |  | $ | 91 |  | $ | 94 |
﻿Gas utility |  |  | 81 |  |  | 121 |
﻿Total net income available to common stockholder – Consumers |  | $ | 172 |  | $ | 215 |
﻿
﻿ |  |  |  |  |  |  |
﻿ |  |  |  |  |  |  |
﻿In Millions
﻿ | March 31, 2016 | December 31, 2015 |
﻿CMS Energy, including Consumers |  |  |  |  |  |  |
﻿Plant, property, and equipment, gross |  |  |  |  |  |  |
﻿Electric utility 1 |  | $ | 13,331 |  | $ | 13,059 |
﻿Gas utility 1 |  |  | 5,819 |  |  | 5,723 |
﻿Enterprises |  |  | 159 |  |  | 120 |
﻿Other reconciling items |  |  | 25 |  |  | 41 |
﻿Total plant, property, and equipment, gross – CMS Energy |  | $ | 19,334 |  | $ | 18,943 |
﻿Consumers |  |  |  |  |  |  |
﻿Plant, property, and equipment, gross |  |  |  |  |  |  |
﻿Electric utility 1 |  | $ | 13,331 |  | $ | 13,059 |
﻿Gas utility 1 |  |  | 5,819 |  |  | 5,723 |
﻿Other reconciling items |  |  | 15 |  |  | 15 |
﻿Total plant, property, and equipment, gross – Consumers |  | $ | 19,165 |  | $ | 18,797 |
﻿CMS Energy, including Consumers |  |  |  |  |  |  |
﻿Total assets |  |  |  |  |  |  |
﻿Electric utility 1 |  | $ | 12,743 |  | $ | 12,660 |
﻿Gas utility 1 |  |  | 5,624 |  |  | 5,912 |
﻿Enterprises |  |  | 261 |  |  | 270 |
﻿Other reconciling items |  |  | 1,409 |  |  | 1,457 |
﻿Total assets – CMS Energy 2 |  | $ | 20,037 |  | $ | 20,299 |
﻿Consumers |  |  |  |  |  |  |
﻿Total assets |  |  |  |  |  |  |
﻿Electric utility 1 |  | $ | 12,744 |  | $ | 12,660 |
﻿Gas utility 1 |  |  | 5,624 |  |  | 5,912 |
﻿Other reconciling items |  |  | 54 |  |  | 63 |
﻿Total assets – Consumers 2 |  | $ | 18,422 |  | $ | 18,635 |
﻿
| 1 |  | Amounts include a portion of Consumers’ other common assets attributable to both the electric and gas utility businesses.
| 2 |  | CMS Energy and Consumers changed the reporting of debt issuance costs on their consolidated balance sheets in accordance with ASU 2015-03, Simplifying the Presentation of Debt Issuance Costs, as of January 1, 2016, and retrospectively adjusted prior-period amounts for comparability. For further details on the implementation of this standard, see Note 1, New Accounting Standards.

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- Definition The entire disclosure for reporting segments including data and tables. Reportable segments include those that meet any of the following quantitative thresholds a) it's reported revenue, including sales to external customers and intersegment sales or transfers is 10 percent or more of the combined revenue, internal and external, of all operating segments b) the absolute amount of its reported profit or loss is 10 percent or more of the greater, in absolute amount of 1) the combined reported profit of all operating segments that did not report a loss or 2) the combined reported loss of all operating segments that did report a loss c) its assets are 10 percent or more of the combined assets of all operating segments. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 34 -URI http://asc.fasb.org/extlink&oid=51669610&loc=d3e8981-108599 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 41 -URI http://asc.fasb.org/extlink&oid=51669610&loc=d3e9038-108599 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 33 -URI http://asc.fasb.org/extlink&oid=51669610&loc=d3e8971-108599 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 12 -URI http://asc.fasb.org/extlink&oid=51669610&loc=d3e8595-108599 Reference 5: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=51669610&loc=d3e8380-108599 Reference 6: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 32 -URI http://asc.fasb.org/extlink&oid=51669610&loc=d3e8933-108599 Reference 7: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 26 -URI http://asc.fasb.org/extlink&oid=51669610&loc=d3e8844-108599 Reference 8: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 35 -URI http://asc.fasb.org/extlink&oid=51669610&loc=d3e8984-108599 Reference 9: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 40 -URI http://asc.fasb.org/extlink&oid=51669610&loc=d3e9031-108599 Reference 10: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 42 -URI http://asc.fasb.org/extlink&oid=51669610&loc=d3e9054-108599 Reference 11: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 10 -URI http://asc.fasb.org/extlink&oid=51669610&loc=d3e8538-108599 Reference 12: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 29 -URI http://asc.fasb.org/extlink&oid=51669610&loc=d3e8864-108599 Reference 13: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 31 -URI http://asc.fasb.org/extlink&oid=51669610&loc=d3e8924-108599 Reference 14: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 30 -URI http://asc.fasb.org/extlink&oid=51669610&loc=d3e8906-108599 + Details
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