Financial Instruments (Tables)

3 Months Ended

Mar. 31, 2021

Financial Instruments [Line Items]

Schedule Of Carrying Amounts And Fair Values Of Financial Instruments

For information about assets and liabilities recorded at fair value and for additional details regarding the fair value hierarchy, see Note 4, Fair Value Measurements.

In Millions
	March 31, 2021															December 31, 2020
	Carrying Amount			Fair Value												Carrying Amount			Fair Value
				Total			Level												Total			Level
							1			2			3									1			2			3
CMS Energy, including Consumers
Assets
Long-term receivables1		$	16		$	16		$	—		$	—		$	16		$	17		$	17		$	—		$	—		$	17
Notes receivable2		2,710			3,006			—			—			3,006			2,887			3,248			—			—			3,248
Securities held to maturity3		34			34			—			34			—			28			29			—			29			—
Liabilities
Long-term debt4		15,046			16,233			1,206			13,108			1,919			15,120			17,512			1,249			14,178			2,085
Long-term payables5		33			35			—			—			35			33			35			—			—			35
Consumers
Assets
Long-term receivables1		$	16		$	16		$	—		$	—		$	16		$	17		$	17		$	—		$	—		$	17
Notes receivable – related party6		106			106			—			—			106			107			107			—			—			107
Liabilities
Long-term debt7		8,107			8,815			—			6,896			1,919			8,106			9,801			—			7,716			2,085

1Includes current portion of long-term accounts receivable of $11 million at March 31, 2021 and $12 million at December 31, 2020.

2Includes current portion of notes receivable of $284 million at March 31, 2021 and $275 million at December 31, 2020. For further details, see Note 6, Notes Receivable.

3These investment securities consist primarily of mortgage-backed securities and Utah Housing Corporation bonds held by EnerBank. There were no unrealized gains during the three months ended March 31, 2021 and $1 million of unrealized gains during the year ended December 31, 2020.

4Includes current portion of long-term debt of $1.5 billion at March 31, 2021 and December 31, 2020.

5Includes current portion of long-term payables of $6 million at March 31, 2021 and December 31, 2020.

6Includes current portion of notes receivable – related party of $7 million at March 31, 2021 and December 31, 2020. For further details on this note receivable, see Note 6, Notes Receivable.

7Includes current portion of long-term debt of $364 million at March 31, 2021 and December 31, 2020.

Consumers Energy Company

Financial Instruments [Line Items]

Schedule Of Carrying Amounts And Fair Values Of Financial Instruments

For information about assets and liabilities recorded at fair value and for additional details regarding the fair value hierarchy, see Note 4, Fair Value Measurements.

In Millions
	March 31, 2021															December 31, 2020
	Carrying Amount			Fair Value												Carrying Amount			Fair Value
				Total			Level												Total			Level
							1			2			3									1			2			3
CMS Energy, including Consumers
Assets
Long-term receivables1		$	16		$	16		$	—		$	—		$	16		$	17		$	17		$	—		$	—		$	17
Notes receivable2		2,710			3,006			—			—			3,006			2,887			3,248			—			—			3,248
Securities held to maturity3		34			34			—			34			—			28			29			—			29			—
Liabilities
Long-term debt4		15,046			16,233			1,206			13,108			1,919			15,120			17,512			1,249			14,178			2,085
Long-term payables5		33			35			—			—			35			33			35			—			—			35
Consumers
Assets
Long-term receivables1		$	16		$	16		$	—		$	—		$	16		$	17		$	17		$	—		$	—		$	17
Notes receivable – related party6		106			106			—			—			106			107			107			—			—			107
Liabilities
Long-term debt7		8,107			8,815			—			6,896			1,919			8,106			9,801			—			7,716			2,085

1Includes current portion of long-term accounts receivable of $11 million at March 31, 2021 and $12 million at December 31, 2020.

2Includes current portion of notes receivable of $284 million at March 31, 2021 and $275 million at December 31, 2020. For further details, see Note 6, Notes Receivable.

3These investment securities consist primarily of mortgage-backed securities and Utah Housing Corporation bonds held by EnerBank. There were no unrealized gains during the three months ended March 31, 2021 and $1 million of unrealized gains during the year ended December 31, 2020.

4Includes current portion of long-term debt of $1.5 billion at March 31, 2021 and December 31, 2020.

5Includes current portion of long-term payables of $6 million at March 31, 2021 and December 31, 2020.

6Includes current portion of notes receivable – related party of $7 million at March 31, 2021 and December 31, 2020. For further details on this note receivable, see Note 6, Notes Receivable.

7Includes current portion of long-term debt of $364 million at March 31, 2021 and December 31, 2020.