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Notes Receivable (Tables) | 6 Months Ended
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Jun. 30, 2014
Schedule Of Current And Non-Current Notes Receivable |
In Millions
| June 30, 2014 | December 31, 2013 |
CMS Energy, including Consumers |  |  |  |  |  |  |
Current |  |  |  |  |  |  |
EnerBank notes receivable, net of allowance for loan losses |  | $ | 87 |  | $ | 48 |
Other |  |  | 1 |  |  | 15 |
Non-current |  |  |  |  |  |  |
EnerBank notes receivable, net of allowance for loan losses |  |  | 683 |  |  | 635 |
Total notes receivable |  | $ | 771 |  | $ | 698 |
Consumers |  |  |  |  |  |  |
Current |  |  |  |  |  |  |
Other |  | $ | - |  | $ | 14 |
Total notes receivable |  | $ | - |  | $ | 14 |
Consumers Energy Company [Member] |
Schedule Of Current And Non-Current Notes Receivable |
In Millions
| June 30, 2014 | December 31, 2013 |
CMS Energy, including Consumers |  |  |  |  |  |  |
Current |  |  |  |  |  |  |
EnerBank notes receivable, net of allowance for loan losses |  | $ | 87 |  | $ | 48 |
Other |  |  | 1 |  |  | 15 |
Non-current |  |  |  |  |  |  |
EnerBank notes receivable, net of allowance for loan losses |  |  | 683 |  |  | 635 |
Total notes receivable |  | $ | 771 |  | $ | 698 |
Consumers |  |  |  |  |  |  |
Current |  |  |  |  |  |  |
Other |  | $ | - |  | $ | 14 |
Total notes receivable |  | $ | - |  | $ | 14 |

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- Definition Tabular disclosure of current and non-current notes receivable. + References No definition available. + Details
Name: | cms_ScheduleOfCurrentAndNonCurrentNotesReceivableTableTextBlock
Namespace Prefix: | cms_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration