Fair Value Measurements (Tables)

3 Months Ended

Mar. 31, 2015

Assets And Liabilities Measured At Fair Value On A Recurring Basis

In Millions
	CMS Energy, including Consumers						Consumers
	March 31			December 31			March 31			December 31
	2015			2014			2015			2014
Assets1
Cash equivalents		$	349		$	110		$	309		$	19
Restricted cash equivalents			50			38			50			38
CMS Energy common stock			-			-			28			38
Nonqualified deferred    compensation plan assets			9			8			6			6
DB SERP
Cash equivalents			3			4			2			3
Mutual funds			151			127			107			90
Derivative instruments
Commodity contracts			1			2			1			2
Total		$	563		$	289		$	503		$	196
Liabilities1
Nonqualified deferred    compensation plan liabilities		$	9		$	8		$	6		$	6
Derivative instruments
Commodity contracts			1			1			-			1
Total		$	10		$	9		$	6		$	7

¹ All assets and liabilities were classified as Level 1 with the exception of some commodity contracts, which were classified as Level 2 or Level 3 and which were insignificant at March 31, 2015 and December 31, 2014.

Assets And Liabilities Measured At Fair Value On A Recurring Basis Using Significant Level 3 Inputs

In Millions
Three Months Ended March 31	2015			2014
CMS Energy, including Consumers
Balance at beginning of period		$	1		$	4
Total gains (losses) offset through regulatory accounting			1			(19)
Settlements			(1)			15
Balance at end of period		$	1		$	-
Consumers
Balance at beginning of period		$	1		$	4
Total gains (losses) offset through regulatory accounting			1			(19)
Settlements			(1)			15
Balance at end of period		$	1		$	-

Consumers Energy Company [Member]

Assets And Liabilities Measured At Fair Value On A Recurring Basis

In Millions
	CMS Energy, including Consumers						Consumers
	March 31			December 31			March 31			December 31
	2015			2014			2015			2014
Assets1
Cash equivalents		$	349		$	110		$	309		$	19
Restricted cash equivalents			50			38			50			38
CMS Energy common stock			-			-			28			38
Nonqualified deferred    compensation plan assets			9			8			6			6
DB SERP
Cash equivalents			3			4			2			3
Mutual funds			151			127			107			90
Derivative instruments
Commodity contracts			1			2			1			2
Total		$	563		$	289		$	503		$	196
Liabilities1
Nonqualified deferred    compensation plan liabilities		$	9		$	8		$	6		$	6
Derivative instruments
Commodity contracts			1			1			-			1
Total		$	10		$	9		$	6		$	7

¹ All assets and liabilities were classified as Level 1 with the exception of some commodity contracts, which were classified as Level 2 or Level 3 and which were insignificant at March 31, 2015 and December 31, 2014.

Assets And Liabilities Measured At Fair Value On A Recurring Basis Using Significant Level 3 Inputs

In Millions
Three Months Ended March 31	2015			2014
CMS Energy, including Consumers
Balance at beginning of period		$	1		$	4
Total gains (losses) offset through regulatory accounting			1			(19)
Settlements			(1)			15
Balance at end of period		$	1		$	-
Consumers
Balance at beginning of period		$	1		$	4
Total gains (losses) offset through regulatory accounting			1			(19)
Settlements			(1)			15
Balance at end of period		$	1		$	-