Contingencies And Commitments (Tables)

6 Months Ended

Jun. 30, 2015

Site Contingency [Line Items]

Guarantees

In Millions
			Maximum				Carrying
Guarantee Description	Issue Date	Expiration Date	Obligation				Amount
CMS Energy, including Consumers
Indemnity obligations from asset sales    and other agreements	Various	Various through August 2029		$	148	1		$	7
Guarantees	Various	Various through March 2021			51				-
Consumers
Indemnity obligations and other guarantees	Various	Various through August 2029		$	30			$	1

¹ The majority of this amount arises from stock and asset sale agreements under which CMS Energy or a subsidiary of CMS Energy, other than Consumers, indemnified the purchaser for losses resulting from various matters, including claims related to tax disputes, claims related to power purchase agreements, and defects in title to the assets or stock sold to the purchaser by CMS Energy subsidiaries.  Except for items described elsewhere in this Note, CMS Energy believes the likelihood of material loss to be remote for the indemnity obligations not recorded as liabilities.

Schedule Of Guarantees, Other Information

Guarantee Description	How Guarantee Arose	Events That Would Require Performance
CMS Energy, including Consumers
Indemnity obligations from asset    sales and other agreements	Stock and asset sale agreements	Findings of misrepresentation,  breach of warranties, tax claims, and  other specific events or circumstances
Guarantees	Normal operating activity	Nonperformance or non-payment by a  subsidiary under a related contract
Consumers
Indemnity obligations and    other guarantees	Normal operating activity	Nonperformance or claims made by a third  party under a related contract

Consumers Energy Company [Member]

Site Contingency [Line Items]

Expected Remediation Cost By Year

In Millions
	2015			2016			2017			2018			2019
Consumers
Remediation and other response activity costs		$	11		$	12		$	13		$	11		$	14

Guarantees

In Millions
			Maximum				Carrying
Guarantee Description	Issue Date	Expiration Date	Obligation				Amount
CMS Energy, including Consumers
Indemnity obligations from asset sales    and other agreements	Various	Various through August 2029		$	148	1		$	7
Guarantees	Various	Various through March 2021			51				-
Consumers
Indemnity obligations and other guarantees	Various	Various through August 2029		$	30			$	1

¹ The majority of this amount arises from stock and asset sale agreements under which CMS Energy or a subsidiary of CMS Energy, other than Consumers, indemnified the purchaser for losses resulting from various matters, including claims related to tax disputes, claims related to power purchase agreements, and defects in title to the assets or stock sold to the purchaser by CMS Energy subsidiaries.  Except for items described elsewhere in this Note, CMS Energy believes the likelihood of material loss to be remote for the indemnity obligations not recorded as liabilities.

Schedule Of Guarantees, Other Information

Guarantee Description	How Guarantee Arose	Events That Would Require Performance
CMS Energy, including Consumers
Indemnity obligations from asset    sales and other agreements	Stock and asset sale agreements	Findings of misrepresentation,  breach of warranties, tax claims, and  other specific events or circumstances
Guarantees	Normal operating activity	Nonperformance or non-payment by a  subsidiary under a related contract
Consumers
Indemnity obligations and    other guarantees	Normal operating activity	Nonperformance or claims made by a third  party under a related contract

Bay Harbor [Member]

Site Contingency [Line Items]

Expected Remediation Cost By Year

In Millions
	2015			2016			2017			2018			2019
CMS Energy
Long-term liquid disposal and operating and maintenance costs		$	7		$	6		$	5		$	5		$	5