Financial Instruments (Tables)

9 Months Ended

Sep. 30, 2018

Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]

Schedule Of Carrying Amounts And Fair Values Of Financial Instruments

Presented in the following table are the carrying amounts and fair values, by level within the fair value hierarchy, of CMS Energy’s and Consumers’ financial instruments that are not recorded at fair value. The table excludes cash, cash equivalents, short-term financial instruments, and trade accounts receivable and payable whose carrying amounts approximate their fair values. For information about assets and liabilities recorded at fair value and for additional details regarding the fair value hierarchy, see Note 5, Fair Value Measurements.

In Millions
	September 30, 2018															December 31, 2017
				Fair Value															Fair Value
	Carrying						Level									Carrying						Level
	Amount			Total			1			2			3			Amount			Total			1			2			3
CMS Energy, including Consumers
Assets
Long-term receivables1		$	22		$	22		$	—		$	—		$	22		$	21		$	21		$	—		$	—		$	21
Notes receivable2		1,640			1,730			—			—			1,730			1,371			1,464			—			—			1,464
Securities held to maturity		22			21			—			21			—			16			16			—			16			—
Liabilities
Long-term payables3		26			26			—			—			26			27			26			—			—			26
Long-term debt4		10,817			10,798			445			9,088			1,265			10,204			10,715			—			9,363			1,352
Consumers
Assets
Long-term receivables1		$	22		$	22		$	—		$	—		$	22		$	21		$	21		$	—		$	—		$	21
Notes receivable5		17			17			—			—			17			17			17			—			—			17
Notes receivable – related party6		107			105			—			—			105			—			—			—			—			—
Liabilities
Long-term debt7		6,115			6,083			—			4,818			1,265			5,904			6,236			—			4,883			1,353

¹  Includes current accounts receivable of $15 million at September 30, 2018 and $14 millionDecember 31, 2017.

²  Includes current portion of notes receivable of $263 million at September 30, 2018 and $200 million at December 31, 2017. For further details, see Note 7, Notes Receivable.

³  Includes current portion of long-term payables of $3 million at September 30, 2018 and December 31, 2017.

⁴  Includes current portion of long-term debt of $1.9 billion at September 30, 2018 and $1.1 billion at December 31, 2017.

⁵  Includes current portion of notes receivable of $17 million at September 30, 2018 and December 31, 2017.

⁶  Includes current portion of notes receivable – related party of $7 million at September 30, 2018. For further details on this note receivable, see the DB SERP discussion below.

⁷  Includes current portion of long-term debt of $876 million at September 30, 2018 and $343 million at December 31, 2017.

Schedule Of Investment Securities

Presented in the following table are CMS Energy’s and Consumers’ investment securities classified as available for sale or held to maturity:

In Millions
	September 30, 2018													December 31, 2017
	Cost			Unrealized Gains			Unrealized Losses				Fair Value			Cost			Unrealized Gains			Unrealized Losses			Fair Value
CMS Energy, including Consumers
Available for sale
DB SERP
Debt securities		$	—		$	—		$	—			$	—		$	141		$	—		$	—		$	141
Held to maturity
Debt securities		22			—			(1		)		21			16			—			—			16
Consumers
Available for sale
DB SERP
Debt securities		$	—		$	—		$	—			$	—		$	102		$	—		$	—		$	102
CMS Energy common stock		—			—			—				—			2			19			—			21

Consumers Energy Company

Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]

Schedule Of Carrying Amounts And Fair Values Of Financial Instruments

Presented in the following table are the carrying amounts and fair values, by level within the fair value hierarchy, of CMS Energy’s and Consumers’ financial instruments that are not recorded at fair value. The table excludes cash, cash equivalents, short-term financial instruments, and trade accounts receivable and payable whose carrying amounts approximate their fair values. For information about assets and liabilities recorded at fair value and for additional details regarding the fair value hierarchy, see Note 5, Fair Value Measurements.

In Millions
	September 30, 2018															December 31, 2017
				Fair Value															Fair Value
	Carrying						Level									Carrying						Level
	Amount			Total			1			2			3			Amount			Total			1			2			3
CMS Energy, including Consumers
Assets
Long-term receivables1		$	22		$	22		$	—		$	—		$	22		$	21		$	21		$	—		$	—		$	21
Notes receivable2		1,640			1,730			—			—			1,730			1,371			1,464			—			—			1,464
Securities held to maturity		22			21			—			21			—			16			16			—			16			—
Liabilities
Long-term payables3		26			26			—			—			26			27			26			—			—			26
Long-term debt4		10,817			10,798			445			9,088			1,265			10,204			10,715			—			9,363			1,352
Consumers
Assets
Long-term receivables1		$	22		$	22		$	—		$	—		$	22		$	21		$	21		$	—		$	—		$	21
Notes receivable5		17			17			—			—			17			17			17			—			—			17
Notes receivable – related party6		107			105			—			—			105			—			—			—			—			—
Liabilities
Long-term debt7		6,115			6,083			—			4,818			1,265			5,904			6,236			—			4,883			1,353

¹  Includes current accounts receivable of $15 million at September 30, 2018 and $14 millionDecember 31, 2017.

²  Includes current portion of notes receivable of $263 million at September 30, 2018 and $200 million at December 31, 2017. For further details, see Note 7, Notes Receivable.

³  Includes current portion of long-term payables of $3 million at September 30, 2018 and December 31, 2017.

⁴  Includes current portion of long-term debt of $1.9 billion at September 30, 2018 and $1.1 billion at December 31, 2017.

⁵  Includes current portion of notes receivable of $17 million at September 30, 2018 and December 31, 2017.

⁶  Includes current portion of notes receivable – related party of $7 million at September 30, 2018. For further details on this note receivable, see the DB SERP discussion below.

⁷  Includes current portion of long-term debt of $876 million at September 30, 2018 and $343 million at December 31, 2017.

Schedule Of Investment Securities

Presented in the following table are CMS Energy’s and Consumers’ investment securities classified as available for sale or held to maturity:

In Millions
	September 30, 2018													December 31, 2017
	Cost			Unrealized Gains			Unrealized Losses				Fair Value			Cost			Unrealized Gains			Unrealized Losses			Fair Value
CMS Energy, including Consumers
Available for sale
DB SERP
Debt securities		$	—		$	—		$	—			$	—		$	141		$	—		$	—		$	141
Held to maturity
Debt securities		22			—			(1		)		21			16			—			—			16
Consumers
Available for sale
DB SERP
Debt securities		$	—		$	—		$	—			$	—		$	102		$	—		$	—		$	102
CMS Energy common stock		—			—			—				—			2			19			—			21