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Reportable Segments | 3 Months Ended
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Mar. 31, 2014
Reportable Segments | 10: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. The reportable segments for CMS Energy and Consumers are: CMS Energy:
| · |  | electric utility, consisting of regulated activities associated with the generation 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; and
| · |  | other, including EnerBank, corporate interest and other expenses, and discontinued operations.
Consumers:
| · |  | electric utility, consisting of regulated activities associated with the generation and distribution of electricity in Michigan;
| · |  | gas utility, consisting of regulated activities associated with the transportation, storage, and distribution of natural gas in Michigan; and
| · |  | other, including a consolidated special-purpose entity for the sale of accounts receivable.
Presented in the following tables is financial information by reportable segment:
In Millions
Three Months Ended March 31 | 2014 | 2013 |
CMS Energy, including Consumers |  |  |  |  |  |  |
Operating revenue |  |  |  |  |  |  |
Electric utility |  | $ | 1,224 |  | $ | 961 |
Gas utility |  |  | 1,158 |  |  | 958 |
Enterprises |  |  | 122 |  |  | 44 |
Other |  |  | 19 |  |  | 16 |
Total operating revenue – CMS Energy |  | $ | 2,523 |  | $ | 1,979 |
Consumers |  |  |  |  |  |  |
Operating revenue |  |  |  |  |  |  |
Electric utility |  | $ | 1,224 |  | $ | 961 |
Gas utility |  |  | 1,158 |  |  | 958 |
Total operating revenue – Consumers |  | $ | 2,382 |  | $ | 1,919 |
CMS Energy, including Consumers |  |  |  |  |  |  |
Net income (loss) available to common stockholders |  |  |  |  |  |  |
Electric utility |  | $ | 100 |  | $ | 66 |
Gas utility |  |  | 121 |  |  | 96 |
Enterprises |  |  | 2 |  |  | 4 |
Other |  |  | (19) |  |  | (22) |
Total net income available to common stockholders – CMS Energy |  | $ | 204 |  | $ | 144 |
Consumers |  |  |  |  |  |  |
Net income available to common stockholder |  |  |  |  |  |  |
Electric utility |  | $ | 100 |  | $ | 66 |
Gas utility |  |  | 121 |  |  | 96 |
Total net income available to common stockholder – Consumers |  | $ | 221 |  | $ | 162 |
In Millions
| March 31, 2014 | December 31, 2013 |
CMS Energy, including Consumers |  |  |  |  |  |  |
Plant, property, and equipment, gross |  |  |  |  |  |  |
Electric utility |  | $ | 11,270 |  | $ | 11,186 |
Gas utility |  |  | 4,896 |  |  | 4,843 |
Enterprises |  |  | 116 |  |  | 115 |
Other |  |  | 40 |  |  | 40 |
Total plant, property, and equipment, gross – CMS Energy |  | $ | 16,322 |  | $ | 16,184 |
Consumers |  |  |  |  |  |  |
Plant, property, and equipment, gross |  |  |  |  |  |  |
Electric utility |  | $ | 11,270 |  | $ | 11,186 |
Gas utility |  |  | 4,896 |  |  | 4,843 |
Other |  |  | 15 |  |  | 15 |
Total plant, property, and equipment, gross – Consumers |  | $ | 16,181 |  | $ | 16,044 |
CMS Energy, including Consumers |  |  |  |  |  |  |
Total assets |  |  |  |  |  |  |
Electric utility 1 |  | $ | 10,719 |  | $ | 10,487 |
Gas utility 1 |  |  | 4,554 |  |  | 4,784 |
Enterprises |  |  | 310 |  |  | 332 |
Other |  |  | 2,341 |  |  | 1,813 |
Total assets – CMS Energy |  | $ | 17,924 |  | $ | 17,416 |
Consumers |  |  |  |  |  |  |
Total assets |  |  |  |  |  |  |
Electric utility 1 |  | $ | 10,719 |  | $ | 10,487 |
Gas utility 1 |  |  | 4,554 |  |  | 4,784 |
Other |  |  | 1,039 |  |  | 908 |
Total assets – Consumers |  | $ | 16,312 |  | $ | 16,179 |
| 1 |  | Amounts include a portion of Consumers’ other common assets attributable to both the electric and gas utility businesses.
Consumers Energy Company [Member] |
Reportable Segments | 10: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. The reportable segments for CMS Energy and Consumers are: CMS Energy:
| · |  | electric utility, consisting of regulated activities associated with the generation 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; and
| · |  | other, including EnerBank, corporate interest and other expenses, and discontinued operations.
Consumers:
| · |  | electric utility, consisting of regulated activities associated with the generation and distribution of electricity in Michigan;
| · |  | gas utility, consisting of regulated activities associated with the transportation, storage, and distribution of natural gas in Michigan; and
| · |  | other, including a consolidated special-purpose entity for the sale of accounts receivable.
Presented in the following tables is financial information by reportable segment:
In Millions
Three Months Ended March 31 | 2014 | 2013 |
CMS Energy, including Consumers |  |  |  |  |  |  |
Operating revenue |  |  |  |  |  |  |
Electric utility |  | $ | 1,224 |  | $ | 961 |
Gas utility |  |  | 1,158 |  |  | 958 |
Enterprises |  |  | 122 |  |  | 44 |
Other |  |  | 19 |  |  | 16 |
Total operating revenue – CMS Energy |  | $ | 2,523 |  | $ | 1,979 |
Consumers |  |  |  |  |  |  |
Operating revenue |  |  |  |  |  |  |
Electric utility |  | $ | 1,224 |  | $ | 961 |
Gas utility |  |  | 1,158 |  |  | 958 |
Total operating revenue – Consumers |  | $ | 2,382 |  | $ | 1,919 |
CMS Energy, including Consumers |  |  |  |  |  |  |
Net income (loss) available to common stockholders |  |  |  |  |  |  |
Electric utility |  | $ | 100 |  | $ | 66 |
Gas utility |  |  | 121 |  |  | 96 |
Enterprises |  |  | 2 |  |  | 4 |
Other |  |  | (19) |  |  | (22) |
Total net income available to common stockholders – CMS Energy |  | $ | 204 |  | $ | 144 |
Consumers |  |  |  |  |  |  |
Net income available to common stockholder |  |  |  |  |  |  |
Electric utility |  | $ | 100 |  | $ | 66 |
Gas utility |  |  | 121 |  |  | 96 |
Total net income available to common stockholder – Consumers |  | $ | 221 |  | $ | 162 |
In Millions
| March 31, 2014 | December 31, 2013 |
CMS Energy, including Consumers |  |  |  |  |  |  |
Plant, property, and equipment, gross |  |  |  |  |  |  |
Electric utility |  | $ | 11,270 |  | $ | 11,186 |
Gas utility |  |  | 4,896 |  |  | 4,843 |
Enterprises |  |  | 116 |  |  | 115 |
Other |  |  | 40 |  |  | 40 |
Total plant, property, and equipment, gross – CMS Energy |  | $ | 16,322 |  | $ | 16,184 |
Consumers |  |  |  |  |  |  |
Plant, property, and equipment, gross |  |  |  |  |  |  |
Electric utility |  | $ | 11,270 |  | $ | 11,186 |
Gas utility |  |  | 4,896 |  |  | 4,843 |
Other |  |  | 15 |  |  | 15 |
Total plant, property, and equipment, gross – Consumers |  | $ | 16,181 |  | $ | 16,044 |
CMS Energy, including Consumers |  |  |  |  |  |  |
Total assets |  |  |  |  |  |  |
Electric utility 1 |  | $ | 10,719 |  | $ | 10,487 |
Gas utility 1 |  |  | 4,554 |  |  | 4,784 |
Enterprises |  |  | 310 |  |  | 332 |
Other |  |  | 2,341 |  |  | 1,813 |
Total assets – CMS Energy |  | $ | 17,924 |  | $ | 17,416 |
Consumers |  |  |  |  |  |  |
Total assets |  |  |  |  |  |  |
Electric utility 1 |  | $ | 10,719 |  | $ | 10,487 |
Gas utility 1 |  |  | 4,554 |  |  | 4,784 |
Other |  |  | 1,039 |  |  | 908 |
Total assets – Consumers |  | $ | 16,312 |  | $ | 16,179 |
| 1 |  | Amounts include a portion of Consumers’ other common assets attributable to both the electric and gas utility businesses.

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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 29 -URI http://asc.fasb.org/extlink&oid=6534315&loc=d3e8864-108599 Reference 2: 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=6534315&loc=d3e8933-108599 Reference 3: 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=6534315&loc=d3e8844-108599 Reference 4: 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=6534315&loc=d3e8538-108599 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=6534315&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 34 -URI http://asc.fasb.org/extlink&oid=6534315&loc=d3e8981-108599 Reference 7: 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=6534315&loc=d3e8984-108599 Reference 8: 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=6534315&loc=d3e9038-108599 Reference 9: 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=6534315&loc=d3e8906-108599 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=6534315&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 31 -URI http://asc.fasb.org/extlink&oid=6534315&loc=d3e8924-108599 Reference 12: 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=6534315&loc=d3e9031-108599 Reference 13: 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=6534315&loc=d3e8971-108599 Reference 14: 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=6534315&loc=d3e8595-108599 + Details
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