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Cash And Cash Equivalents (Tables) | 6 Months Ended
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Jun. 30, 2018
Cash and Cash Equivalents [Line Items] |
Schedule Of Cash And Cash Equivalents, Including Restricted Amounts | Presented in the following table are the components of total cash and cash equivalents, including restricted amounts, and their location on CMS Energy’s and Consumers’ consolidated balance sheets:
In Millions |
| June 30, 2018 |  | December 31, 2017 |
CMS Energy, including Consumers |  |  |  |
Cash and cash equivalents |  | $ | 477 |  |  | $ | 182 |
Restricted cash and cash equivalents |  | 17 |  |  | 17 |
Other non-current assets |  | 7 |  |  | 5 |
Cash and cash equivalents, including restricted amounts |  | $ | 501 |  |  | $ | 204 |
Consumers |  |  |  |
Cash and cash equivalents |  | $ | 254 |  |  | $ | 44 |
Restricted cash and cash equivalents |  | 17 |  |  | 17 |
Other non-current assets |  | 5 |  |  | 4 |
Cash and cash equivalents, including restricted amounts |  | $ | 276 |  |  | $ | 65 |
Consumers Energy Company |
Cash and Cash Equivalents [Line Items] |
Schedule Of Cash And Cash Equivalents, Including Restricted Amounts | Presented in the following table are the components of total cash and cash equivalents, including restricted amounts, and their location on CMS Energy’s and Consumers’ consolidated balance sheets:
In Millions |
| June 30, 2018 |  | December 31, 2017 |
CMS Energy, including Consumers |  |  |  |
Cash and cash equivalents |  | $ | 477 |  |  | $ | 182 |
Restricted cash and cash equivalents |  | 17 |  |  | 17 |
Other non-current assets |  | 7 |  |  | 5 |
Cash and cash equivalents, including restricted amounts |  | $ | 501 |  |  | $ | 204 |
Consumers |  |  |  |
Cash and cash equivalents |  | $ | 254 |  |  | $ | 44 |
Restricted cash and cash equivalents |  | 17 |  |  | 17 |
Other non-current assets |  | 5 |  |  | 4 |
Cash and cash equivalents, including restricted amounts |  | $ | 276 |  |  | $ | 65 |

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- Definition Tabular disclosure of the components of cash and cash equivalents, including restricted amounts. + References No definition available. + Details
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- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. + References No definition available. + Details
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