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Notes Receivable (Tables) | 12 Months Ended
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Dec. 31, 2015
Notes Receivable [Abstract] |
Schedule Of Current And Non-Current Notes Receivable |
In Millions
December 31 | 2015 | 2014 |
CMS Energy, including Consumers |  |  |  |  |  |  |
Current |  |  |  |  |  |  |
EnerBank notes receivable, net of allowance for loan losses |  | $ | 128 |  | $ | 97 |
EnerBank notes receivable held for sale |  |  | 16 |  |  | 41 |
Other |  |  | - |  |  | 1 |
Non-current |  |  |  |  |  |  |
EnerBank notes receivable |  |  | 1,017 |  |  | 800 |
Total notes receivable |  | $ | 1,161 |  | $ | 939 |
Schedule Of Allowance For Loan Losses |
In Millions
Years Ended December 31 | 2015 | 2014 |
Balance at beginning of period |  | $ | 8 |  | $ | 5 |
Charge-offs |  |  | (8) |  |  | (6) |
Recoveries |  |  | 1 |  |  | 1 |
Provision for loan losses |  |  | 8 |  |  | 8 |
Balance at end of period |  | $ | 9 |  | $ | 8 |

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- Definition Notes Receivable [Abstract] + References No definition available. + Details
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- Definition Tabular disclosure of current and non-current notes receivable. + References No definition available. + Details
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- Definition Tabular disclosure of the activity in the total allowance for credit losses related to financing receivables (such as loans or lease receivables) for entities that have an unclassified balance sheet, including the balance in the allowance at the beginning and end of each period, additions charged to operations, direct write-downs charged against the allowance, and recoveries of amounts previously charged off. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 11B -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=49124121&loc=SL6953423-111524 + Details
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