Fair Value Measurements (Tables)

3 Months Ended

Mar. 31, 2019

Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]

Assets And Liabilities Measured At Fair Value On A Recurring Basis

Presented in the following table are CMS Energy’s and Consumers’ assets and liabilities recorded at fair value on a recurring basis:

In Millions
	CMS Energy, including Consumers						Consumers
	March 31 2019			December 31 2018			March 31 2019			December 31 2018
Assets1
Cash equivalents		$	20		$	27		$	—		$	—
Restricted cash equivalents		33			21			27			17
CMS Energy common stock		—			—			1			1
Nonqualified deferred compensation plan assets		15			14			12			10
DB SERP cash equivalents		—			1			—			—
Derivative instruments		—			1			—			1
Total		$	68		$	64		$	40		$	29
Liabilities1
Nonqualified deferred compensation plan liabilities		$	15		$	14		$	12		$	10
Derivative instruments		4			3			—			—
Total		$	19		$	17		$	12		$	10

¹  All assets and liabilities were classified as Level 1 with the exception of derivative contracts, which were classified as Level 2 or Level 3.

Consumers Energy Company

Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]

Assets And Liabilities Measured At Fair Value On A Recurring Basis

Presented in the following table are CMS Energy’s and Consumers’ assets and liabilities recorded at fair value on a recurring basis:

In Millions
	CMS Energy, including Consumers						Consumers
	March 31 2019			December 31 2018			March 31 2019			December 31 2018
Assets1
Cash equivalents		$	20		$	27		$	—		$	—
Restricted cash equivalents		33			21			27			17
CMS Energy common stock		—			—			1			1
Nonqualified deferred compensation plan assets		15			14			12			10
DB SERP cash equivalents		—			1			—			—
Derivative instruments		—			1			—			1
Total		$	68		$	64		$	40		$	29
Liabilities1
Nonqualified deferred compensation plan liabilities		$	15		$	14		$	12		$	10
Derivative instruments		4			3			—			—
Total		$	19		$	17		$	12		$	10

¹  All assets and liabilities were classified as Level 1 with the exception of derivative contracts, which were classified as Level 2 or Level 3.