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Reportable Segments (Tables) | 3 Months Ended
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Mar. 31, 2014
Reconciliation Of Segments To Consolidated |
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 |
Amounts include a portion of Consumers’ other common assets attributable to both the electric and gas utility businesses.
Consumers Energy Company [Member] |
Reconciliation Of Segments To Consolidated |
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 |
Amounts include a portion of Consumers’ other common assets attributable to both the electric and gas utility businesses.

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- Definition Tabular disclosure of the profit or loss and total assets for each reportable segment. An entity discloses certain information on each reportable segment if the amounts (a) are included in the measure of segment profit or loss reviewed by the chief operating decision maker or (b) are otherwise regularly provided to the chief operating decision maker, even if not included in that measure of segment profit or loss. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 21 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=6534315&loc=d3e8721-108599 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 25 -URI http://asc.fasb.org/extlink&oid=6534315&loc=d3e8813-108599 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 20 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=14024403&loc=d3e13816-109267 Reference 4: 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 5: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 22 -URI http://asc.fasb.org/extlink&oid=6534315&loc=d3e8736-108599 + Details
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